Automatic locking device for heaven and earth pin of cell translation door
Patent Information
- Application Number
- CN202520657225.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-04-09
AI Technical Summary
[0002]平移门是所有门种运用在监室内中最为广泛，但现有技术中平移门大多采用人工套设环锁的方式来进行上锁，整个监狱都需要狱警来进行人工操作，大大增加了工作强度，当发生冲监或者火灾等特殊情况时，给狱警的反应时间较少，存在着各种安全隐患；暴露在外部的环锁可能会被囚犯轻易解开和破坏，或者说利用它来进行一些自残的行为，整个平移门的安全性能不高
[0010]与现有技术相比，本实用新型的有益效果如下：锁门时，通过平移门体使得两个锁舌向门框靠近，当两个锁舌与门框接触后，锁舌会受到门框的反向作用，这就使得两个锁舌向门体内部滑动，此时回复弹簧被拉伸积蓄弹性势能，同时活动板带动齿板向第一齿轮滑动，由于第一齿轮与齿板啮合，所以第一齿轮会发生转动，这就使得第二齿轮同步转动，从而可以使得第一齿条和第二齿条相背滑动，进而使得上插销和下插销从门体内伸出与门框配合，这样使得门体体的上下两端被卡死，从而避免左右平移，实现自动上锁的目的，减轻了狱警的工作强度；整个锁芯件、锁舌件、插销件均设置在犯人无法触碰的门体体内，上锁后对应的上插销和下插销也插设在门框内，犯人较难进行破坏和解锁，平移门的安全性能提高。
Smart Images
Figure CN224849724U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prison cell sliding door technology, and more specifically, to an automatic locking device for the top and bottom locking pins of a prison cell sliding door. Background Technology
[0002] Sliding doors are the most widely used type of door in prison cells. However, most sliding doors currently use manual locking with interlocking rings. This requires prison guards to operate them manually, greatly increasing their workload. In case of emergencies such as prison break or fire, there is little time for prison guards to react, posing various safety hazards. Exposed interlocking rings can be easily unlocked and damaged by prisoners, or used for self-harm. Overall, the security performance of sliding doors is not high. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an automatic locking device for the top and bottom locking pins of a prison cell sliding door, which has the advantage that the door lock is difficult to damage.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic locking device for a sliding door of a prison cell, comprising a door body, a lock cylinder installed on the inner side of the door body, and a latch installed at one end of the inner side of the door body. The latch includes a movable plate, a toothed plate, and two latches. The movable plate is movably installed on the inner side of the door body, and both latches penetrate the side wall of the door body and can slide relative to the door body. One end of each latch is fixedly connected to the movable plate, and the toothed plate is fixedly installed on one side of the movable plate. The toothed plate cooperates with the lock cylinder.
[0005] As a preferred embodiment of this utility model, a return spring is fitted on each of the two locking tongues, and the return spring is fixedly installed between the movable plate and the inner wall of the door.
[0006] As a preferred embodiment of this utility model, the lock cylinder includes a first gear, which is rotatably mounted on the inner side of the door body and meshes with a toothed plate.
[0007] As a preferred technical solution of this utility model, a key groove is provided on the first gear.
[0008] As a preferred technical solution of this utility model, a latch is also installed on the inner side of the door body. The latch includes a first rack, an upper latch, a second rack, and a lower latch. The upper latch penetrates the top wall of the door body and can slide relative to the door body. The first rack is fixedly installed at the bottom of the upper latch. The lower latch penetrates the bottom wall of the door body and can slide relative to the door body. The second rack is fixedly installed at the top of the lower latch.
[0009] As a preferred embodiment of the present invention, the lock cylinder further includes a second gear, which is coaxially and fixedly connected to the first gear, and both the first rack and the second rack mesh with the second gear.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When locking the door, the two latches move closer to the door frame by sliding the door body. When the two latches contact the door frame, they are subjected to the opposite force of the door frame, causing them to slide inward. At this time, the return spring is stretched and accumulates elastic potential energy. Simultaneously, the movable plate drives the toothed plate to slide towards the first gear. Since the first gear meshes with the toothed plate, the first gear will rotate, which causes the second gear to rotate synchronously. This allows the first rack and the second rack to slide in opposite directions, thereby causing the upper and lower pins to extend out of the door body and engage with the door frame. This locks the upper and lower ends of the door body, preventing lateral movement and achieving automatic locking, thus reducing the workload of prison guards. The entire lock cylinder, latch, and pin components are all located inside the door body, which is inaccessible to prisoners. After locking, the corresponding upper and lower pins are also inserted into the door frame, making it difficult for prisoners to damage or unlock the door, thus improving the security performance of the sliding door. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a structural schematic diagram of the lock cylinder component of this utility model;
[0013] Figure 3 This is a structural schematic diagram of the locking tongue component of this utility model;
[0014] Figure 4 This is a schematic diagram of the pin component of this utility model.
[0015] In the diagram: 1. Door body; 2. Lock cylinder; 21. First gear; 22. Key slot; 23. Second gear; 3. Lock tongue; 31. Movable plate; 32. Tooth plate; 33. Lock tongue; 34. Return spring; 4. Pin; 41. First rack; 42. Upper pin; 43. Second rack; 44. Lower pin. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] like Figures 1 to 4 As shown, this utility model provides an automatic locking device for a sliding door of a prison cell, including a door body 1. A lock cylinder 2 is installed on the inner side of the door body 1, and a latch 3 is installed at one end of the inner side of the door body 1. The latch 3 includes a movable plate 31, a toothed plate 32, and two latches 33. The movable plate 31 is movably installed on the inner side of the door body 1. The two latches 33 penetrate the side wall of the door body 1 and can slide relative to the door body 1. A return spring 34 is sleeved on each of the two latches 33. The return spring 34 is fixedly installed between the movable plate 31 and the inner wall of the door body 1. One end of each latch 33 is fixedly connected to the movable plate 31. The toothed plate 32 is fixedly installed on one side of the movable plate 31 and cooperates with the lock cylinder 2.
[0018] The lock cylinder 2 includes a first gear 21 and a second gear 23. The first gear 21 is rotatably mounted on the inside of the door body 1 and meshes with the toothed plate 32. The second gear 23 is coaxially fixedly connected to the first gear 21. A key groove 22 is provided on the first gear 21.
[0019] The door body 1 is also equipped with a latch 4, which includes a first rack 41, an upper latch 42, a second rack 43, and a lower latch 44. The upper latch 42 passes through the top wall of the door body 1 and can slide relative to the door body 1. The first rack 41 is fixedly installed at the bottom of the upper latch 42. The lower latch 44 passes through the bottom wall of the door body 1 and can slide relative to the door body 1. The second rack 43 is fixedly installed at the top of the lower latch 44. The first rack 41 and the second rack 43 both mesh with the second gear 23.
[0020] Working principle: When locking the door, the door body 1 is moved to bring the two latches 33 closer to the door frame. When the two latches 33 contact the door frame, they are subjected to a reverse force from the door frame, causing them to slide inwards. At this time, the return spring 34 is stretched and stores elastic potential energy. Simultaneously, the movable plate 31 drives the toothed plate 32 to slide towards the first gear 21. Since the first gear 21 meshes with the toothed plate 32, the first gear 21 rotates, causing the second gear 23 to rotate synchronously, thus enabling the first... The rack 41 and the second rack 43 slide in opposite directions, causing the upper pin 42 and the lower pin 44 to extend from the door body 1 and engage with the door frame. This locks the upper and lower ends of the door body 1, preventing lateral movement and achieving automatic locking, thus reducing the workload of prison guards. The entire lock cylinder 2, lock tongue 3, and pin 4 are all located inside the door body 1, which is inaccessible to prisoners. After locking, the corresponding upper pin 42 and lower pin 44 are also inserted into the door frame, making it difficult for prisoners to damage or unlock the door, thus improving the security of the sliding door.
[0021] When opening the door, the key is inserted into the key slot 22, and then the first gear 21 and the second gear 23 are rotated by turning the key. This causes the first rack 41 and the second rack 43 to slide towards each other, which causes the upper pin 42 and the lower pin 44 to retract into the door body 1 and disengage from the door frame. This removes the restriction on the door body 1, allowing it to be opened. The opening process is simple and highly practical.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic locking device for a sliding door of a prison cell, comprising a door body (1), characterized in that: A lock cylinder (2) is installed on the inner side of the door body (1), and a lock tongue (3) is installed at one end of the inner side of the door body (1). The lock tongue (3) includes a movable plate (31), a toothed plate (32), and two lock tongues (33). The movable plate (31) is movably installed on the inner side of the door body (1). The two lock tongues (33) penetrate the side wall of the door body (1) and can slide relative to the door body (1). One end of the two lock tongues (33) is fixedly connected to the movable plate (31). The toothed plate (32) is fixedly installed on one side of the movable plate (31). The toothed plate (32) cooperates with the lock cylinder (2).
2. The automatic locking device for the sliding door of a prison cell according to claim 1, characterized in that: Both of the latches (33) are fitted with return springs (34), which are fixedly installed between the movable plate (31) and the inner wall of the door (1).
3. The automatic locking device for the sliding door of a prison cell according to claim 2, characterized in that: The lock cylinder (2) includes a first gear (21), which is rotatably mounted on the inside of the door body (1) and meshes with a toothed plate (32).
4. The automatic locking device for the sliding door of a prison cell according to claim 3, characterized in that: The first gear (21) has a key slot (22).
5. The automatic locking device for the sliding door of a prison cell according to claim 4, characterized in that: The door body (1) is also equipped with a latch (4) on its inner side. The latch (4) includes a first rack (41), an upper latch (42), a second rack (43), and a lower latch (44). The upper latch (42) passes through the top wall of the door body (1) and can slide relative to the door body (1). The first rack (41) is fixedly installed at the bottom of the upper latch (42). The lower latch (44) passes through the bottom wall of the door body (1) and can slide relative to the door body (1). The second rack (43) is fixedly installed at the top of the lower latch (44).
6. The automatic locking device for the sliding door of a prison cell according to claim 5, characterized in that: The lock cylinder (2) also includes a second gear (23), which is coaxially and fixedly connected to the first gear (21). The first rack (41) and the second rack (43) are both meshed with the second gear (23).