![]() System for tool-free attachment of an actuator to a valve flange and suitable actuator.
专利摘要:
The invention relates to a system for tool-free attachment of an actuator to a flange of a valve. The system includes the actuator and a split pin (SP) for attachment. The flange has four through holes arranged in a square. The actuator has a housing and a shoulder formed on the housing (AB). The latter surrounds an actuating connection of the actuator coaxially to its adjusting axis. At the heel four bolts (B) are arranged in a square, which point away from the shoulder (AB) and are structurally tuned to the four openings in the flange so that the four bolts protrude through the openings in the flange when the actuator is mounted. The bolts each have at their protruding end piece a circumferential annular groove (RN) with an axial depth in relation to the adjusting axis. The sapwood is fork-shaped. It includes two external tines (AZ) with a fork width (GW) and a fork thickness. The fork width and the thickness of the fork are matched to the distance and the groove depth of the bolt, that the two outer tines after a lateral sliding of the splint on the four protruding end pieces of the bolts each include the annular groove of two end pieces laterally from the outside. The invention further relates to an actuator with the previously described paragraph (AB). 公开号:CH713884A2 申请号:CH00655/18 申请日:2018-05-24 公开日:2018-12-14 发明作者:Willi Martina;Bellmont Fabian;Fässler Tobias 申请人:Siemens Schweiz Ag; IPC主号:
专利说明:
Description: The invention relates to a system for fastening an actuator to a flange of a valve. The flange has four through openings or bores, preferably arranged in a square, for possible fastening. Furthermore, the invention relates to a suitable actuator for attachment to a flange of a valve. So far, the attachment is usually done with four screws, such as with Allen screws and with a suitable tool such as a screwdriver or Allen key. Such attachment is time consuming and requires a suitable tool. Based on this, it is an object of the invention to provide a fastening system with which an actuator can be quickly and easily attached to a valve flange. The object is achieved with the objects of the main claims. Advantageous embodiments of the present invention are specified in the dependent claims. According to the invention, the system for fastening the actuator to the valve flange comprises the actuator and a split pin. The actuator has a housing and a shoulder formed on the housing. The shoulder can also be part of an underside of the housing with an actuating connection of the actuator. The paragraph surrounds the actuating connection of the actuator coaxially to an actuating axis of the actuating connection. Four bolts, preferably arranged in a square, are arranged on the shoulder, which point away from the shoulder in a direction parallel to the actuating axis. Alternatively, the bolts can also be arranged in a rectangle. The bolts are structurally matched to the four openings in the flange such that the four bolts protrude through the openings in the flange when the actuator is attached to the flange. At their projecting end piece, the bolts each have a preferably completely circumferential annular groove with an axial groove depth with respect to the actuating axis. The sapwood is fork-shaped and has two outer tines. The outer tines have a fork width to each other and a preferably uniform fork thickness. The dimensions of the fork width and the fork thickness are matched to the spacing and the groove depth of the bolts in such a way that the two outer tines, after the splints have been pushed onto the four protruding end pieces of the bolts, each encompass the annular groove of two end pieces from the outside. This enables simple mounting of an actuator without tools. The bolts on the actuator replace the previous screws when connecting the actuator to the valve. According to an advantageous embodiment, the fork width of the two outer tines to each other is dimensioned such that these the respective ring grooves after sliding the split pin, i.e. After the two outer tines have been retracted into the ring groove, grasp them laterally with a pretension and fix them. As a result, the actuator is positively fixed axially to the valve. According to a further embodiment, the two outer tines in the area of the tine tip have a lateral bulge in the area of the lateral encirclement of the respective annular groove. The lateral bulges are geometrically matched to the outer contour of the ring groove for possible locking with the respective ring groove. The latching enables the actuator to be fixed particularly firmly to the valve. At the same time, the person installing the actuator receives tactile feedback when the ring grooves of the bolts engage or snap into the bulges. According to a particularly advantageous embodiment, the two outer tines of the split pin have an axial deformation in relation to the adjusting axis in the region of their half tine length. The deformation is in particular shaped or introduced in the form of an arch in the split pin. The deformations are such that after the split pin is pushed on laterally, they cause a pretension and thus a force on an underside of the flange and thus clamp and fix the actuator with the valve flange. As a result, the actuator is secured against loosening from the valve flange even in the event of vibrations and the like. According to a further embodiment, the split pin has two inner tines which extend approximately to half the tine length of the two outer tines, forming a groove running between the tines. The groove is in particular a longitudinal groove. The groove width of these two longitudinal grooves is slightly larger than the outside diameter of a bolt in the area of the ring groove. The two outer tines have a further lateral bulge in the area of their half tine length, which is dimensioned such that the split pin can now be threaded over the end pieces of two bolts and then further into the two grooves between the outer and inner tines. As a result, the actuator is additionally secured against rotary movements between the actuator and the valve. In addition, this ensures that the split pin does not fall and is lost when the split pin is pulled out to loosen the actuator. According to one embodiment, the split pin has a handle for sliding onto the end pieces of the bolts and for pulling out the split pin from the end pieces of the bolts. CH 713 884 A2 [0016] The handle is preferably ergonomically designed so that it can be gripped by means of an index finger and thumb. Finally, the split pin is made of metal and in particular made of steel. The latter has resilient properties combined with high forces. The split pin can be a stamped part or a stamped / bent part. [0018] The object of the invention is further generally achieved by an actuator which has a housing and a shoulder formed on the housing. The shoulder surrounds or encloses an actuating connection of the actuator coaxially to an actuating axis of the actuating connection. The actuating connection can be designed such that it has a linear actuating movement in the direction of the actuating axis or a rotary movement, such as e.g. from 0 ° to 90 °, as rotary connection. There are four, preferably arranged in a square bolts on the heel, which point in a direction parallel to the actuating axis away from the heel. At their end piece, the bolts each have a preferably completely circumferential annular groove with an axial groove depth with respect to the actuating axis. The bolts are preferably cylindrical. The axial groove depth is in the range from 0.5 to 3 mm, in particular in the range from 1.5 to 2.5 mm. A radial groove width, based on a rotational symmetry axis of a bolt, is preferably in the range from 0.5 to 2.5 mm. The object of the invention is also achieved by an actuator for the fastening system according to the invention described above. According to one embodiment, the shoulder formed on the housing of the actuator has an axial depth in relation to the actuating axis of the actuator in the range from 0 to 30 mm, in particular in the range from 5 to 10 mm. The shoulder ensures a certain distance between the actuator and the valve, so that the split pin can be pushed onto the end pieces of the bolts projecting through the flange in a particularly simple manner. The invention and advantageous embodiments of the present invention are explained using the example of the following figures. Thereby time: 1 shows an exemplary system for fastening an actuator to a valve flange shortly before the actuator-side bolts are inserted into opposite through openings (bores) in the valve flange according to the invention, 2 shows the example according to FIG. 1 in an enlarged view in the retracted state and with the split pin already pushed on according to the invention, Fig. 3 is a well-designed example of a fastening system in an overhead view, with a shoulder and with a split pin, and without a valve flange for a better understanding of the invention, and Fig. 4 is a perspective view of an actuator attached to a valve flange by means of a split pin according to the invention. Fig. 1 shows an exemplary system for fastening an actuator SA to a valve flange F shortly before the drive-in bolts BO in opposite through openings BO in the form of holes in the valve flange F according to the invention. In the side view shown, two of a total of four bolts BO can be seen, which are attached to a shoulder AB or housing flange of the actuator SA. The BO bolts can also be regarded as pins. They point away from paragraph AB in a direction parallel to a dot-dashed actuating axis of an actuator ST. The bolts BO have a bolt length in the range from 1 to 5 cm, in particular in the range from 1.5 to 3 cm. In the present example, the control connection ST is a rotary connection, which can rotate a valve ball KG inside the valve V shown in the range from 0 ° to 90 ° in order to set a volume flow through the valve V. The through openings OF in the flange F are preferably bores with a diameter in the range from 2 to 10 mm. The holes OF are usually slightly larger than the outside diameter of the bolts BO. NA is a groove spacing between two ring grooves RN of two opposing bolts BO. The distance between the bolts BO, measured between the respective rotational symmetry axes of the bolts BO, is as large as the groove spacing plus twice the radial groove width of the bolts BO. Fig. 2 shows the example of FIG. 1 in an enlarged view in the retracted state and with the split pin SP already pushed on according to the invention. The figure shows how the end pieces of the four bolts BO protrude through the through openings OF, so that the entire annular groove RN of the bolts BO also protrudes. Dashed lines show the split pin SP according to the invention, which is being pushed onto the end pieces of the bolts BO in order to attach the actuator SA to the valve V. When pulled, the actuator SA is fixed and clamped and fixed with the valve flange V under a pretension. This is achieved by an axially bent area SP in the area of half the tine length of the two outer tines AZ. This area with preload brings after inserting the CH 713 884 A2 Splints SP in its end position to a permanent clamping force against the flange bottom FU shown on the valve flange F by the area with preload VS being supported against the end pieces of the bolts (BO). Fig. 3 shows a well-designed example of a fastening system in an overhead view, with a paragraph AB and with a split pin SP, and without valve flange F for a better understanding of the invention. In the figure, a central opening ZO can be seen, which coaxially surrounds the actuating connection ST of the actuator SA. The cotter pin SP is shown in its final fastening position, in which the actuator SA is firmly connected to the valve flange F. All ring grooves RN of the bolt BO are laterally encompassed by the external tines AZ and two internal tines IZ. The bulges AU2 are also recognizable, which are provided for locking the tine tips of the two outer tines AZ with the end pieces of the bolts BO in the area of the ring grooves RN. To fasten the actuator SA with the valve flange F, the split pin SP with the two additional bulges AU inserted is threaded into the outer tines AU via the end pieces of the two left bolts BO. The entire cotter pin SP is then pushed to the right, so that the two left bolts BO run along the grooves N formed between the two outer tines AZ and the two inner tines IZ on the inside. At the end of the insertion process, the two outer tines AZ encompass the two right bolts BO in the area of the ring grooves RN from the outside and then latch with their two bulges AU 2. 4 shows a perspective view of an actuator SA fastened to a valve flange F by means of a split pin SP according to the invention. In the lower part of FIG. 4, the handle GR or the handle of the split pin SP can be seen, which is used to manually move the split pin SP. MAN is a manual actuating element for the SA actuator. This enables the actuator connection ST of the actuator SA to be moved manually. Reference symbol list [0030] AB paragraph ON stop AU further recess, semicircular recess AU 2 recess, locking element AZ external tines B bolt, grooved bolt EA end of external tine El end of the inner prong F flange, valve flange G housing GR handle GW fork width IZ internal tines MAN manual actuating element for the control connection N groove, longitudinal groove NA groove spacing, ring groove spacing OF opening, hole, hole RN ring groove SA actuator, actuator SP sapwood ST actuator connection V valve VS curved pin area for preload CH 713 884 A2 ZO Central opening
权利要求:
Claims (10) [1] claims 1. System for fastening an actuator (SA) to a flange (F) of a valve (V), the system comprising the actuator (SA) and a split pin (SP) and for fastening the actuator (SA) to the flange (F) is provided, the flange has four through openings (OF), preferably arranged in a square, for fastening, - The actuator (SA) has a housing (G) and a shoulder (AB) formed on the housing (G), the shoulder (AB) having an actuating connection (ST) of the actuator (SA) coaxial with an actuating axis of the actuating connection (SA ) surrounds, on the shoulder (AB) four, preferably arranged in a square, bolts (BO) are arranged, which point in the parallel direction to the positioning axis away from the shoulder (AB) and constructively point to the four openings (OF) in the flange (F ) are coordinated so that the four bolts (BO) protrude through the openings (OF) in the flange (F) when the actuator (SA) is attached to the flange (F), and the bolts (BO) each preferably have one at their protruding end piece have a completely circumferential annular groove (RN) with an axial groove depth with respect to the actuating axis, and - The cotter pin (SP) is fork-shaped and has two outer tines (AZ), the outer tines (AZ) having a fork width (GW) to each other and a fork thickness, and wherein the fork width (GW) and the fork thickness are based on the distance between the Bolts (BO) and the groove depth of the bolts (BO) are coordinated so that the two outer tines (AZ) each have the annular groove (RN) of two end pieces after the splints (SP) have been pushed onto the four protruding end pieces of the bolts (BO) embrace from the outside. [2] 2. System according to claim 1, wherein the fork width (GW) of the two outer tines (AZ) to each other is dimensioned such that the two outer tines (AZ) after pushing on the split pin (SP), the respective ring grooves (RN) of the bolts (BO) grasp and fix with a pretension on the side. [3] 3. System according to claim 1 or 2, wherein the two outer tines (AZ) in the region of the tine tip (EA) have a lateral bulge (AU2) in the region of the lateral encirclement of the respective annular groove (RN), the lateral bulges (AU2) for possible locking with the respective ring groove (RN) are geometrically matched to the outer contour of the ring groove (RN). [4] 4. System according to any one of the preceding claims, wherein the two outer tines (AZ) of the split pin (SP) in the region of their half tine length have an axial deformation (VS) with respect to the actuating axis, the deformations (VS) being such that these After pushing on the split pin (SP) from the side, preload on an underside (FU) of the flange (F) and thus tension and fix the actuator (SA) with the flange (F) of the valve (V). [5] 5. System according to one of the preceding claims, wherein the split pin (SP) has two inner tines (IZ) which extend approximately up to half the tine length of the two outer tines (AZ) with the formation of a groove running between the tines (AZ, IZ) ( N) extend, the groove width being slightly larger than the outer diameter of a bolt (BO) in the area of the annular groove (RN), and the two outer tines (AZ) having a further lateral bulge (AU) in the area of their half tine length, so It is dimensioned that the split pin (SP) can be threaded over the end pieces of two bolts (BO) and further into the two grooves (N) between the outer and inner tines (AZ, IZ). [6] 6. System according to one of the preceding claims, wherein the split pin (SP) has a handle (GR) for pushing onto the end pieces of the bolts (BO) and for pulling out the split pin (SP) from the end pieces of the bolts (BO). [7] 7. System according to any one of the preceding claims, wherein the split pin (SP) is made of metal, in particular steel. [8] 8. Actuator (SA), with a housing (G) and with a shoulder (AB) formed on the housing (G9), the shoulder (AB) being an actuator connection (ST) of the actuator (SA) coaxial with an actuating axis of the actuator connection (SA ) surrounds, on the shoulder (AB) four, preferably arranged in a square, bolts (BO) are arranged, which point away from the shoulder (AB) in the parallel direction to the positioning axis and which each have a preferably completely circumferential annular groove (RN) at their end piece. have an axial groove depth with respect to the actuating axis. [9] 9. Actuator (SA) for a system according to one of the preceding claims 1 to 8. [10] 10. Actuator (SA) according to claim 8 or 9, wherein the shoulder (AB) formed on the housing of the actuator (SA) has an axial depth in relation to the actuating axis of the actuator (SA) in the range from 0 to 30 mm, in particular in the range from 5 to 10 mm. CH 713 884 A2
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同族专利:
公开号 | 公开日 CH713884B1|2022-01-14| DE102017209459A1|2018-12-06| DE102017209459B4|2018-12-27|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 DE43982C|F. C. GLASER, König]. Kommissions-Rath in Berlin SW., Lindenstrafse 80|Screw locking with lock nut fastened with a wedge| DE202014102658U1|2014-06-06|2014-06-23|Bürkert Werke GmbH|diaphragm valve|EP3896321A1|2020-04-14|2021-10-20|Pittway Sarl|Mounting clip to mount an actuator unit to a valve unit and assembly having an actuator unit, a valve unit and a mounting clip|
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申请号 | 申请日 | 专利标题 DE102017209459.1A|DE102017209459B4|2017-06-05|2017-06-05|System for tool-free attachment of an actuator to a valve flange and suitable actuator| 相关专利
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