• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The disclosure relates to a transmission locking mechanism and a protective device. The transmission locking mechanism comprises a spiral plate and one or more worms. The spiral 5 plate is meshed with the worm. A spiral groove is formed in an end face of the spiral plate. The spiral groove is formed by utilizing a straight line vertical to the spiral plate as the aXis to conduct the Archimedean spiral outwards. A toothed surface of the worm is formed by utilizing the aXis of the worm as the center line to conduct the Archimedean spiral. According to the disclosure, a reduction gear with a large single-stage transmission ratio, a few 10 components, a smaller size, and a compact structure is formed by the spiral plate and the worm. Additionally, the reduction gear is simple to manufacture, reliable in performance, and low in maintenance costs. Furthermore, the locking is more reliable because of a self-locking function of the spiral plate and the worm, and then an unlocking problem caused by external force pushback is avoided.
    公开号:NL2026419A
    申请号:NL2026419
    申请日:2020-09-07
    公开日:2021-05-11
    发明作者:Xu Yubin；Zheng Zipeng；Wang Baoliang
    申请人:China Urban Construction Design & Res Institute Co Ltd；
    IPC主号:
    专利说明:

    P34736NLO0/MKO Title: TRANSMISSION LOCKING MECHANISM AND PROTECTIVE DEVICE
    TECHNICAL FIELD The disclosure relates to the machinery field, and in particular, to a transmission locking mechanism and a protective device.
    BACKGROUND A protective door is a weak part of a protective structure to prevent destructive effects, such as explosion of conventional weapons and nuclear explosion in wartime, bomb terrorist attacks, explosion of inflammable and explosive materials, explosion of industrial dusts, man- made deliberate destruction, etc. A locking mechanism is an important part of the protective device and is used for locking and unlocking the device. The existing locking mechanism has a complicated structure, complex operations, and poor stability, and is not applicable to civil air defense facilities. So, when the destructive effect generates, the latch may loss a supporting function after pulled back by the external force.
    SUMMARY The objective of the disclosure is to provide a transmission locking mechanism and a protective device to solve at least one of the above technical problems.
    To solve the technical problems, as one aspect of the disclosure, a transmission locking mechanism is proposed, comprising a spiral plate and one or more worms. The spiral plate is meshed with the worm. A spiral groove is formed in an end face of the spiral plate. The spiral groove is formed by utilizing a straight line vertical to the spiral plate as the axis to conduct the Archimedean spiral outwards. A toothed surface of the worm is formed by utilizing the axis of the worm as the center line to conduct the Archimedean spiral.
    Preferably, the worm and the spiral plate can slide and roll at their meshing point.
    Preferably, toothed surface parameters of the spiral groove of the spiral plate are determined according to parameters, such as a transmission ratio, etc.
    The disclosure further proposes a protective device. The protective device comprises the transmission locking mechanism.
    -2- Preferably, the protective device further comprises a door body and a door frame. The spiral plate of the transmission locking mechanism is pivotally mounted on the door body, and one end of the worm of the transmission locking mechanism is connected with a latch through a connecting rod.
    Preferably, a guide part is arranged on the door body, and the connecting rod is movably arranged in a guide hole of the guide part.
    Preferably, the transmission locking mechanism, the connecting rod, and the latch are arranged in a sandwich space in the door body.
    Preferably, the guide hole is square.
    Preferably, the latch adopts a claw structure, a mortise structure, or a mortise and tenon structure.
    Preferably, the protective device comprises multiple latches arranged on the circumference of the door body.
    In the technical solution of the disclosure, a reduction gear with a large single-stage transmission ratio, a few components, a smaller size, and a compact structure 1s formed by the spiral plate and the worm. Additionally, the reduction gear is simple to manufacture, reliable in performance, and low in maintenance costs. Furthermore, the locking is more reliable because of a self-locking function of the spiral plate and the worm, and then an unlocking problem caused by external force pushback is avoided.
    BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural diagram of a protective device in the disclosure.
    FIG. 2 is the first stereogram of a spiral plate.
    FIG. 3 is the second stereogram of a spiral plate.
    FIG. 4 is a schematic structural diagram of a latch.
    Reference signs: 1-spiral plate, 2-worm, 3-spiral groove, 4-door body, 5-door frame, 6- connecting rod, 7-latch, and 8-guide part.
    DESCRIPTION OF THE EMBODIMENTS The following describes the embodiments of the disclosure in detail, but the disclosure can be implemented in various forms limited and covered by the claims.
    The disclosure relates to a spiral-plate-and-worm reduction gear system applied to protective (airtight) doors, which may meet strong shock waves or destructive effects, for civil air defense, anti-detonation protection, safety protection, vault protection, etc. The
    -3- system comprises an Archimedean spiral plate and a worm, wherein the spiral plate is a rotating plate with a spiral groove based on the Archimedean spiral. The worm is composed of a cylindrical worm and a toothed surface based on the Archimedean spiral. The Archimedean spiral surface is a ruled surface, and is formed by utilizing a straight line to conduct the Archimedean spiral when utilizing the axis of the worm as the center line.
    In the operating process, the spiral plate rotates, and the connecting rod moves by the matching of the spiral groove in the spiral plate and the worm. The worm moves to drive the latch to stretch and retract or rotate to lock or unlock the protective/airtight door.
    One aspect of the resent invention proposes a transmission locking mechanism, and in particular, relates to a spiral-plate-and-worm reduction gear system applied to protective (airtight) doors, which may meet strong shock waves or destructive effects, for civil air defense, anti-detonation protection, safety protection, vault protection, etc.
    The transmission locking mechanism comprises a spiral plate 1 and one or more worms
    2. Therefore, one spiral plate 1 can simultaneously drive multiple worms 2 to move to lock in multiple aspects.
    The spiral plate 1 is meshed with the worm 2. A spiral groove 3 is formed in an end face of the spiral plate 1. The spiral groove 3 is formed by utilizing a straight line vertical to the spiral plate 1 as the axis to conduct the Archimedean spiral outwards. A toothed surface of the worm 2 is formed by utilizing the axis of the worm 2 as the center line to conduct the Archimedean spiral. The toothed surface parameters of the worm match with the toothed surface parameters of the spiral groove. Preferably, the toothed surface parameters of the spiral groove 3 of the spiral plate 1 are determined according to parameters, such as a transmission ratio, etc.
    In the technical solution of the disclosure, a reduction gear with a large single-stage transmission ratio, a few components, a smaller size, and a compact structure is formed by the spiral plate and the worm. Additionally, the reduction gear is simple to manufacture, reliable in performance, and low in maintenance costs. Furthermore, the locking is more reliable because of a self-locking function of the spiral plate and the worm, and then an unlocking problem caused by external force pushback is avoided.
    Preferably, the toothed surface of the worm is placed in the spiral slot of the spiral plate. The worm 2 and the spiral plate 1 can slide and roll at their meshing point. The worm and the spiral plate need a lubricant.
    The disclosure further proposes a protective device, and in particular a protective door. The protective device comprises the transmission locking mechanism. The transmission
    -4- locking mechanism is an important part of a protective structure. So, it decides a supporting function of a door leaf under the negative pressure of shock waves or at a destruction stage in one aspect, and decides the closing pressure between the door leat and the door frame in the other aspect. The traction performance of the locking mechanism is decided by the reduction gear. The reduction gear utilizing the spiral plate and the worm operates reliably and stably, and has a self-locking function, a large single-stage transmission ratio, a few components, a smaller size, a compact structure, simple manufacture, reliable performance, and low maintenance costs.
    Preferably, the protective device further comprises a door body 4 and a door frame 5. The spiral plate 1 of the transmission locking mechanism is pivotally mounted on the door body 4, and one end of the worm 2 of the transmission locking mechanism is connected with a latch 7 through a connecting rod 6. Preferably, the latch 7 adopts a claw structure, a mortise structure, or a mortise and tenon structure.
    Preferably, a guide part 8 is welded on the door body 4. The connecting rod 6 is movably arranged in a guide hole of the guide part 8. Preferably, the guide hole is square. The guide part 8 is used for helping the connecting rod to move in a straight line direction.
    Preferably, the protective device comprises multiple latches 7 arranged on the circumference of the door body 4 as required. In one embodiment, the door body 4 has a hollow structure. Preferably, the transmission locking mechanism, the connecting rod 6, and the latch 7 are arranged in a sandwich space in the door body 4. The spiral plate 1 rotates to drive the worm 2 to move. The worm 2 helps the connecting rod 6 to slide in the guide part 8 in a directed manner. The guide part 8 and the door body are welded and fixed. The latch 7 locks a locking box in the door frame 5 under the action of the connecting rod 6.
    By adopting the above technical solution, the disclosure can solve the potential safety hazard that the latch is pulled back by the external force so that the door leaf losses the supporting point, and it also greatly improves the reliability of the device. Furthermore, in view of the linkage function of the reduction gear, the locking assembly, and the latch, single- action locking or unlocking can be achieved. The disclosure has a reasonable structure and flexible operations, and solves the problems that the protective door is complex, the opening force is low, and direction change 1s not required.
    The foregoing is merely illustrative of the preferred embodiments of the disclosure and is not intended to limit the disclosure, and various changes and modifications may be made by those skilled in the art. Any modifications, equivalent substitutions, improvements, and the
    -5- like within the spirit and principles of the invention are intended to be included within the scope of the disclosure.
    权利要求:
    Claims (10)
    [1]
    A transmission locking mechanism, comprising a spiral plate (1), and one or more worms (2), the spiral plate (1) being engaged with the worm (2); a spiral groove (3) is formed in an end face of the spiral plate (1); the spiral groove (3) is formed using a straight line vertically on the spiral plate (1) as an axis to guide the Archimedean spiral outward; a serrated surface of the worm (2) is formed by using the axis of the worm (2) as the centerline to guide the Archimedean spiral.
    [2]
    The transmission lock mechanism according to claim 1, wherein the worm (2) and the spiral plate (1) can slide and roll at their point of engagement.
    [3]
    The transmission lock mechanism according to claim 1, wherein the parameters of the tooth surface of the spiral groove (3) of the spiral plate (1) are determined according to parameters such as a gear ratio.
    [4]
    A protection device comprising the transmission lock mechanism according to any one of claims 1 to 3.
    [5]
    Protection device according to claim 4, further comprising a door body (4) and a door frame (5), wherein the spiral plate (1) of the transmission locking mechanism is pivotally mounted on the door body (4), and one end of the worm (2) of the transmission lock mechanism is connected to a latch (7) via a connecting rod (6).
    [6]
    Protective device according to claim 5, wherein a guide part (8) is arranged on the door body (4) and the connecting rod (6) is arranged movably in a guide hole of the guide part (8).
    [7]
    A protection device according to claim 5, wherein the transmission locking mechanism, connecting bar (6) and latch (7) are disposed in an intermediate space in the door body (4).
    [8]
    The protection device of claim 8, wherein the pilot hole is square.
    [9]
    The protective device of claim 5, wherein the latch (7) adopts a claw structure, a mortise structure or a tenon structure.
    [10]
    Protective device according to claim 5, comprising a plurality of latches (7) arranged on the periphery of the door body (4).
    类似技术:
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    同族专利:
    公开号 | 公开日
    NL2026419B1|2021-11-09|
    CN110469635A|2019-11-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB228621A|1923-11-07|1925-02-09|James Edward Wilson|Improvements in and relating to means for securing closed with pressure the doors ofcold storage chambers large or small|
    CN106761066A|2016-11-25|2017-05-31|河南理工大学|A kind of hermatic door based on spiral of Archimedes|
    CN109113462A|2018-08-27|2019-01-01|王爱莲|A kind of logistic car door locking device and its application method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN201910844774.5A|CN110469635A|2019-09-07|2019-09-07|It is driven blocking mechanism and protective device|
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