Side lock

Abstract

The utility model provides a side lock, and belongs to the technical field of locks. The side lock solves the problems that an existing side lock only has a single opening / closing function and the like. The hook tongue and the inclined tongue are arranged on the lock box, the first rack and the second rack are arranged on the lock box in a sliding mode, a second gear pair is further arranged between the first rack and the second rack, and when the first rack translates, the second rack can be driven by the second gear pair to translate; a second transmission assembly is arranged between the latch bolt and the second rack, the latch bolt can be driven to move through the second transmission assembly when the second rack translates, a third transmission assembly is arranged between the coupler knuckle and the second rack, and the coupler knuckle can be driven to move through the third transmission assembly when the second rack translates. The side lock has the advantages that when the main lock tongue in the main lock body does not work, the hook tongue and the latch bolt in the side lock do not work as well as the main lock tongue, only the latch bolt in the main lock body plays a role, and the functions of quickly entering and exiting without a key and temporarily fixing a door leaf are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology and relates to a side lock. Background Technology

[0002] A lock body generally includes a lock box and a main bolt and a latch bolt set on the lock box. The lock is opened or closed by turning the handle, turning the lock cylinder with a key, or by using fingerprint / facial recognition.

[0003] The design of adding a false opening in the lock body means that when the door is ajar, the main bolt does not work, and only the latch bolt is active. At this time, the door can be opened directly by the handle without complicated operations such as keys or fingerprints. This is suitable for short-term entry and exit (such as picking up express delivery or taking out the trash). Its purpose is to provide basic protection while avoiding the inconvenience of frequent use of the main bolt.

[0004] Adding a side lock to the main lock body aims to create a multi-directional locking mechanism with the main bolt. When the door is closed, the side bolt engages with the corresponding strike plate, increasing the number of locking points. This makes it difficult for tools like pry bars to simultaneously break all the locking points, reducing the pressure on a single bolt and slowing down the breaking process. The side lock is linked to the main bolt; when the main bolt extends, it drives the side bolt to move synchronously, ensuring that all locking points are active at the same time.

[0005] Currently, most side locks on the market only have a single open / close function. These types of side locks can only be used with main lock bodies that can only open / close. Therefore, a side lock structure with a "playback" function is needed. When the door is ajar, neither the bolt on the side lock nor the bolt on the main lock body works; only the latch on the main lock body functions. This ensures the dual security of both the main lock body and the side lock while also enabling quick entry and exit without a key and temporary door securing. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in existing lock body structures by proposing a side lock with a decoy function.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A side lock includes a lock box, a hook tongue and a slanted tongue disposed on the lock box, and racks 1 and 2 slidably disposed on the lock box. A gear pair 2 is also provided between racks 1 and 2, so that rack 1 can drive rack 2 to move when it translates. A transmission component 2 is provided between the slanted tongue and rack 2, so that rack 2 can drive the slanted tongue to move when it translates. A transmission component 3 is provided between the hook tongue and rack 2, so that rack 2 can drive the hook tongue to move when it translates.

[0009] In the aforementioned side lock, the second gear pair includes a first gear and a second gear rotatably mounted on the lock box and coaxially arranged. The first gear meshes with a rack, and the second gear meshes with a rack. When the rack moves, it can drive the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the rack to move.

[0010] In the aforementioned side lock, the transmission assembly two includes a transmission plate rotatably mounted on the lock box, a pin one fixed on a rack two, a slide groove one opened on the transmission plate, and a pin two fixed on the tongue. The pin two is inserted into the slide groove one. When the rack two moves, the pin one moves to abut against the transmission plate and pushes the transmission plate to rotate. The transmission plate drives the tongue to move through the pin two.

[0011] In the aforementioned side lock, the transmission component three includes a pin three fixed on the rack two and a slide groove two opened on the hook tongue. The pin three is inserted into the slide groove two, and the hook tongue is rotatably disposed in the lock box. When the rack two moves, it can drive the hook tongue to rotate through the pin three.

[0012] In the aforementioned side lock, the first gear is fixed with several limiting blocks, and the second gear is provided with limiting arc grooves corresponding to the positions of the limiting blocks. The limiting blocks are inserted into the limiting arc grooves. When the rack moves in the reverse direction to reset, it drives the first gear to synchronously reverse and reset. The limiting blocks rotate along the limiting arc grooves. During the partial stroke of the rack's reverse reset, the second gear can remain stationary relative to the first gear so that the hook tongue remains stationary and forms a false position.

[0013] In one of the aforementioned side locks, the pitch circle diameter of the first gear is smaller than that of the second gear. The purpose of this design is to allow the second gear to travel a greater distance, thus overcoming the limitation on output distance caused by space constraints.

[0014] Compared with the prior art, this utility model has the following beneficial effects: The main lock body and rack are linked. When the main bolt on the main lock body extends, it drives the rack to move synchronously, and also drives the hook and latch to move synchronously. Due to the play between the first gear and the second gear, when the rack returns to its original position, it drives the first gear to rotate. Within a reasonable travel range, the first gear can keep the second gear stationary, while the rack, hook, and latch remain stationary. When the main bolt in the main lock body is not working, the hook and latch in the side lock are also not working, only the latch in the main lock body is active, achieving the function of quick entry and exit without a key and temporary door fixing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the side lock assembly of this utility model after it is locked;

[0016] Figure 2 This is a schematic diagram of the side lock assembly of this utility model after it has been unlocked;

[0017] Figure 3 This is a schematic diagram of the transmission after the side lock assembly of this utility model is locked;

[0018] Figure 4 This is a schematic diagram of the transmission after the side lock assembly of this utility model is unlocked;

[0019] Figure 5 This is a schematic diagram of the structure of the first gear and the second gear of this utility model;

[0020] In the diagram, 1. Lock box; 2. Hook tongue; 3. Slant tongue; 4. Rack 1; 5. Rack 2; 6. First gear; 7. Second gear; 8. Transmission plate; 9. Pin 1; 10. Slide groove 1; 11. Pin 2; 12. Pin 3; 15. Limiting block; 16. Limiting arc groove. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Figure 1 and Figure 2 As shown, the side lock of this utility model includes a lock box 1, a hook tongue 2 and a slanted tongue 3 disposed on the lock box 1, and a rack 4 and a rack 5 slidably disposed on the lock box 1. A gear pair 2 is also provided between the rack 4 and the rack 5, and the rack 4 can drive the rack 5 to move through the gear pair 2 when it moves. A transmission component 2 is provided between the slanted tongue 3 and the rack 5, and the rack 5 can drive the slanted tongue 3 to move through the transmission component 2 when it moves. A transmission component 3 is provided between the hook tongue 2 and the rack 5, and the rack 5 can drive the hook tongue 2 to move through the transmission component 3 when it moves.

[0023] like Figure 3 and Figure 4As shown, the second gear pair includes a first gear 6 and a second gear 7 rotatably mounted on the lock box 1 and coaxially arranged. The first gear 6 meshes with a rack 4, and the second gear 7 meshes with a rack 5. When the rack 4 translates, it drives the first gear 6 to rotate, the first gear 6 drives the second gear 7 to rotate, and the second gear 7 drives the rack 5 to translate. The second transmission assembly includes a transmission plate 8 rotatably mounted on the lock box 1, a pin 9 fixed on the rack 5, a groove 10 formed on the transmission plate 8, and a pin 11 fixed on the tongue 3. The pin 11 is inserted into the groove 10. When the rack 5 translates, the pin 9 moves to abut against the transmission plate 8 and pushes the transmission plate 8 to rotate. The transmission plate 8 drives the tongue 3 to translate via the pin 11. The transmission component three includes a pin three 12 fixed on the rack two 5 and a slide groove two opened on the hook tongue 2. The pin three 12 is inserted into the slide groove two. The hook tongue 2 is rotatably set in the lock box 1. When the rack two 5 moves, it can drive the hook tongue 2 to rotate through the pin three 12.

[0024] like Figure 5 As shown, the first gear 6 is fixed with several limiting blocks 15, and the second gear 7 has limiting arc grooves 16 corresponding to the positions of the limiting blocks 15. The limiting blocks 15 are inserted into the limiting arc grooves 16. When the rack-4 moves backward to reset, it drives the first gear 6 to synchronously reverse to reset. The limiting blocks 15 rotate along the limiting arc grooves 16. During part of the reverse reset stroke of the rack-4, the second gear 7 can remain stationary relative to the first gear 6 so that the hook tongue 2 remains stationary, forming a false position. The pitch circle diameter of the first gear 6 is smaller than that of the second gear 7. The purpose of this design is to allow the second gear 7 to move a greater distance, thus solving the limitation on the output distance caused by space constraints.

[0025] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".

[0026] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A side lock, characterized in that, It includes a lock box (1), a hook tongue (2) and a slant tongue (3) set on the lock box (1), and a rack first (4) and a rack second (5) slidably set on the lock box (1). A gear pair second is also provided between the rack first (4) and the rack second (5). When the rack first (4) moves, it can drive the rack second (5) to move through the gear pair second. A transmission component second is provided between the slant tongue (3) and the rack second (5). When the rack second (5) moves, it can drive the slant tongue (3) to move through the transmission component second. A transmission component third is provided between the hook tongue (2) and the rack second (5). When the rack second (5) moves, it can drive the hook tongue (2) to move through the transmission component third.

2. A side lock according to claim 1, characterized in that, The gear pair includes a first gear (6) and a second gear (7) rotatably mounted on the lock box (1) and coaxially mounted. The first gear (6) meshes with rack one (4), and the second gear (7) meshes with rack two (5). When rack one (4) translates, it can drive the first gear (6) to rotate. The first gear (6) drives the second gear (7) to rotate, and the second gear (7) drives rack two (5) to translate.

3. A side lock according to claim 1, characterized in that, The transmission assembly 2 includes a transmission plate (8) rotatably mounted on the lock box (1), a pin 1 (9) fixed on the rack 2 (5), a slide groove 1 (10) opened on the transmission plate (8), and a pin 2 (11) fixed on the tongue (3). The pin 2 (11) is inserted into the slide groove 1 (10). When the rack 2 (5) moves, the pin 1 (9) moves to abut against the transmission plate (8) and pushes the transmission plate (8) to rotate. The transmission plate (8) drives the tongue (3) to move through the pin 2 (11).

4. A side lock according to claim 1, characterized in that, The transmission component three includes a pin three (12) fixed on the rack two (5) and a slide groove two opened on the hook tongue (2). The pin three (12) is inserted into the slide groove two. The hook tongue (2) is rotatably set in the lock box (1). When the rack two (5) moves, it can drive the hook tongue (2) to rotate through the pin three (12).

5. A side lock according to claim 2, characterized in that, The first gear (6) is fixed with several limiting blocks (15), and the second gear (7) is provided with limiting arc grooves (16) corresponding to the positions of the limiting blocks (15). The limiting blocks (15) are inserted into the limiting arc grooves (16). When the rack (4) moves backward and resets, it drives the first gear (6) to rotate backward and reset synchronously. The limiting blocks (15) rotate along the limiting arc grooves (16). During the part of the reverse reset stroke of the rack (4), the second gear (7) can remain stationary relative to the first gear (6) so that the hook tongue (2) remains stationary and forms a false position.

6. A side lock according to claim 2, characterized in that, The pitch circle diameter of the first gear (6) is smaller than that of the second gear (7).

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