Lock body transmission box

Abstract

The utility model discloses a lock body transmission box which comprises a bottom plate, one face of the bottom plate is provided with an assembly cavity which is punched into a rectangular concave face, and the two sides of the interior of the assembly cavity are each provided with an installation cavity of a semicircular concave face rectangular structure. A gear square rod is sleeved on the outer cylinder part of the transmission rod, a driving gear on the gear square rod is matched with driving teeth of a driving cavity in a toothed plate in a driving mode, when the toothed plate is pushed through a key on a door handle, the gear square rod is driven through the toothed plate, unlocking is driven, and meanwhile the toothed plate and a sliding gasket can be driven to rebound to an initial state through rebound resilience of a toothed plate compression spring piece. Through elastic reset driving of the two toothed plate spring pieces on the toothed plate and the sliding gasket, the toothed plate can be kept horizontally moving without displacement, and meanwhile, the double-toothed-plate pressure spring piece cannot generate pressure or cannot generate fracture damage caused by increased tensile force in the repeated use process.

Description

Technical Field

[0001] The utility model belongs to the technical field of locks, and particularly relates to a lock body transmission box. Background Technique

[0002] At present, people have higher and higher requirements for the experience of furniture. Especially for a type of furniture used for storing items, such as a chest of drawers, it is generally connected to the cabinet body through smooth sliding drawer guides, so that the drawer can be closely attached to the furniture after being closed, appearing neat and beautiful. The existing lock can make the drawer automatically pop out by pressing a push-and-rebound device. However, the drawer guide push-and-rebound device lacks a buffer mechanism. When the drawer pops out, due to excessive pushing or popping force, without a buffering effect, the items in the drawer are likely to shift due to rapid movement and produce impact sounds.

[0003] For this reason, a device with a rebound structure with the publication number of "CN219249595U" includes a housing. The housing is provided with an elastic reset mechanism. A rebound component extending outside the housing is arranged on the elastic reset mechanism. The rebound component is provided with a first abutting end and a second abutting end; when contacting and pushing from the first abutting end with the rebound component, the rebound component can push the elastic reset mechanism to move inside the housing; when contacting and pushing from the second abutting end with the rebound component, the rebound component can retract towards the inner side of the housing. By contacting the first abutting end with the rebound component to make the rebound component push the elastic reset mechanism to move, the thrust applied to the first abutting end can be better transmitted to the elastic reset mechanism. By contacting the second abutting end with the rebound component to make the rebound component retract towards the inner side of the housing, part of the thrust applied to the second abutting end is converted into the elastic potential energy when the rebound component retracts, forming a certain buffering effect.

[0004] However, for the above device with a rebound structure, although the first abutting end contacts the rebound component to make the rebound component push the elastic reset mechanism to move, there are still the following obvious defects during use: the rebound components in the above device are all reset by pulling with springs, and only one side is provided with a tension spring for resetting the toothed plate. In this way, it is very easy to cause the displacement of the position of the internal toothed plate. At the same time, the tension spring is prone to problems such as increased pressure or tension and breakage during use. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a lock body transmission box to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A lock body transmission box, comprising:

[0007] Bottom plate, on one side of which there is an assembly cavity formed by stamping into a rectangular concave surface. On both sides inside the assembly cavity, there are installation cavities in the shape of semi-circular concave rectangular structures. Inside each installation cavity, there is a toothed plate compression spring piece that is press-fitted into the assembly cavity through a sliding gasket and is limitedly embedded. The sliding gasket is movably installed in the assembly cavity on the bottom plate.

[0008] Drive rod, at one end of the drive rod passing through the assembly cavity, there is a semi-circular limit cam plate integrally formed. On the drive rod, there are respectively sleeved a gear square rod and a square upper cylinder. At one end of the gear square rod located inside the assembly cavity, there is a driving gear integrally formed, and the driving gear meshes and drives a toothed plate sleeved on the drive rod.

[0009] Preferably, a cover plate is covered on the side of the bottom plate with the assembly cavity. On the bottom side of the inner cavity of the outward convex part of the cover plate, there is a vertical limit sliding groove, and at the center position of the cover plate, there is a central shaft hole through which the drive rod passes, so that the gear square rod and the square upper cylinder can pass through the central shaft hole and be linked with the internal components of its transmission box to unlock.

[0010] Preferably, at the edge end of the cover plate, there is a clamping block extending to one side and having an L-shaped structure for clamping and combining with the bottom plate. In the middle of both sides on one side of the cover plate, there is a screw piece fixedly connected through, realizing the combined connection between the cover plate and the bottom plate, and using the screw to connect with the lock body to unlock.

[0011] Preferably, on the surface of the sliding gasket, there is an activity cavity for the toothed plate to slide inside the cavity to drive the sliding gasket to slide in the assembly cavity. The toothed plate is movably arranged in the activity cavity, so that the rotation of the gear square rod uses the driving gear to mesh and rotate in the activity cavity of the toothed plate.

[0012] Preferably, on both sides of the sliding gasket, at the positions corresponding to the toothed plate compression spring pieces, there are driving opening grooves, and the driving opening grooves are correspondingly attached to the periphery of the installation cavity port. The exposed part of the toothed plate compression spring piece is located inside the driving opening groove, so that when the sliding gasket is driven to slide, it drives the toothed plate spring piece to be compressed and makes the sliding gasket automatically rebound.

[0013] Preferably, on the surface of the toothed plate, there is a driving cavity in the shape of a vertical ellipse. On one side inside the driving cavity, there is a driving tooth integrally formed, and the driving gear at one end of the gear square rod meshes with the driving tooth, so that the toothed plate slides under the action of the driving tooth meshing and driving the driving gear, so as to facilitate the movement of the sliding gasket in the Zhang Pei cavity.

[0014] Preferably, at the center position of the bottom end outside the toothed plate, there is a limit convex plate integrally formed and extending to one side, and the limit convex plate is movably arranged in the limit sliding groove on the surface of the cover plate, ensuring that the toothed plate vertically slides up and down under the rotation action of the gear square rod.

[0015] Preferably, a central positioning perforation for the transmission rod to pass through and be limited is provided at the central position of the bottom plate, and a gasket is fixed to one end of the transmission rod with a limiting cam plate.

[0016] Compared with the prior art, the technical effects and advantages of the present utility model are as follows: For this lock body transmission box, the inner tooth plate compression spring parts are installed on both side edges of one side of the bottom plate in the installation cavity, and the positions of the tooth plate compression spring parts outside the installation cavity are located in the driving opening grooves arranged on both side edges of the sliding gasket combined in the assembly cavity. And under the penetration combination of the gear square rod, the cover plate, the transmission rod, the square upper cylinder, the tooth plate, the driving tooth, and the driving gear, by using the tooth plate compression spring parts in the left and right installation cavities inside the assembly cavity on the bottom plate, the tooth plate and the sliding gasket are respectively embedded on the surface of the tooth plate compression spring parts. At the same time, a vertical up and down thrust for pushing the sliding gasket is formed by the combination of the inner part of the sliding gasket and the limiting cam plate at the semicircular part of the bottom of the transmission rod. The square upper cylinder linked to the transmission rod can drive the unlocking. A gear square rod is sleeved on the outer cylinder part of the transmission rod, and the driving gear on the gear square rod is in driving engagement with the driving tooth in the driving cavity of the tooth plate. When the tooth plate is pushed by the button on the doorknob, the gear square rod is driven by the tooth plate to drive the unlocking. At the same time, the resilience of the tooth plate compression spring parts can be used to drive the tooth plate and the sliding gasket to rebound to the initial state. Through the elastic reset driving of the two tooth plate spring parts on the tooth plate and the sliding gasket, the position of the tooth plate can be kept moving horizontally without displacement. At the same time, the double tooth plate compression spring parts will not have problems of increased pressure or tension leading to fracture and damage during repeated use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an exploded structural schematic diagram of the present utility model;

[0018] Figure 2 is a combined structural schematic diagram of the transmission box of the present utility model.

[0019] In the figure: 1. Bottom plate; 2. Assembly cavity; 3. Installation cavity; 4. Sliding gasket; 5. Tooth plate compression spring part; 6. Transmission rod; 7. Limiting cam plate; 8. Gear square rod; 9. Square upper cylinder; 10. Driving gear; 11. Tooth plate; 12. Cover plate; 13. Limiting sliding groove; 14. Central shaft hole; 15. Block; 16. Screw part; 17. Activity cavity; 18. Driving opening groove; 19. Driving cavity; 20. Driving tooth; 21. Limiting convex plate; 22. Central positioning perforation; 23. Gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figure 1-2 , the present invention provides a technical solution: a lock body drive box, comprising:

[0022] A bottom plate 1, on one side of the bottom plate 1, there is an assembly cavity 2 formed by stamping into a rectangular concave surface, so that the sliding gasket 4 is combined in the assembly cavity 2 to drive up and down sliding. On both sides of the inner part of the assembly cavity 2, there are installation cavities 3 in the shape of semi-circular concave rectangular structures, so that the tooth plate spring parts 5 are positioned on the left and right sides of the assembly cavity 2. And in the installation cavities 3, there are tooth plate spring parts 5 which are pressed into the inner part of the assembly cavity 2 and limitedly embedded through the sliding gasket 4. The sliding gasket 4 is driven to slide by the tooth plate 11, and the sliding gasket 4 is movably installed in the assembly cavity 2 on the bottom plate 1, so that the sliding gasket 4 is directed to slide vertically under the drive of the rotation of the transmission rod 6.

[0023] A transmission rod 6, at one end of the transmission rod 6 passing through the assembly cavity 2, there is integrally formed a limit cam plate 7 in the shape of a semi-circle, which can improve the stability of the transmission rod 6 rotating on the bottom plate 1, and the design of the integral structure is not easy to wear and break. And on the transmission rod 6, there are respectively sleeved a gear square rod 8 and a square upper cylinder 9, which can be connected and transmitted with the main body of the lock to unlock. At one end of the gear square rod 8 located inside the assembly cavity 2, there is integrally formed a driving gear 10. The integral forming design of the driving gear 10 and the gear square rod 8 can make the driving gear 10 more durable. And the driving gear 10 meshes with and drives the tooth plate 11 sleeved on the transmission rod 6, and the movement of the tooth plate 11 drives the sliding gasket 4 to slide.

[0024] One side of the base plate 1 with the assembly cavity 2 is covered with a cover plate 12, so as to realize the combined locking of all transmission components in the inner cavity formed by the combination of the base plate 1 and the cover plate 12. On the bottom side of the inner cavity of the outward convex part of the cover plate 12, a limit sliding groove 13 is vertically arranged, so as to play a role in limiting the vertical movement of the toothed plate 11. And a central shaft hole 14 for the transmission rod 6 to pass through is arranged at the central position of the cover plate 12, which plays a role in positioning the position of the transmission rod 6 during rotation, ensuring the stability of the rotation of the transmission rod 6. A clamping block 15 extending to one side and having an L-shaped structure for clamping and combining with the base plate 1 is arranged at the edge end of the cover plate 12, which can make the cover plate 12 and the base plate 1 be combined and installed into an integral body to form the transmission box of the lock. On both sides of the middle part of one side of the cover plate 12, a screw member 16 is fixedly connected through, so that the transmission box can be fixedly connected with the lock body through the screw member 16 for transmission.

[0025] An activity cavity 17 for the toothed plate 11 to slide in the inner cavity to drive the sliding gasket 4 to slide in the assembly cavity 2 is arranged on the surface of the sliding gasket 4. The toothed plate 11 is movably arranged in the activity cavity 17. Driving opening grooves 18 are arranged at the corresponding positions of both sides of the sliding gasket 4 for the toothed plate compression spring member 5, and the driving opening grooves 18 are correspondingly attached to the periphery of the port of the installation cavity 3. The exposed part of the toothed plate compression spring member 5 is located inside the driving opening grooves 18. A driving cavity 19 with a vertical elliptical structure is arranged on the surface of the toothed plate 11. A driving tooth 20 is integrally formed on one side inside the driving cavity 19, and the driving gear 10 at one end of the gear square rod 8 meshes with the driving tooth 20, so that the toothed plate 11 drives the sliding gasket 4 to slide. A limiting convex plate 21 extending to one side is integrally formed at the central position of the bottom end outside the toothed plate 11, and the limiting convex plate 21 is movably arranged in the limit sliding groove 13 on the surface of the cover plate 12. A central positioning through hole 22 for the transmission rod 6 to pass through and be limited is arranged at the central position of the base plate 1. A gasket 23 is fixed at one end of the transmission rod 6 with a limiting cam plate 7.

[0026] Specifically, when in use, firstly, the transmission box and the lock body are connected to each other by a combination of the square upper tube 9, the transmission rod 6 and the gear square rod 8. The toothed plate compression spring member 5 in the installation cavity 3 on the left and right sides of the assembly cavity 2 on the bottom plate 1 is respectively embedded in the surface of the toothed plate compression spring member 5 through the toothed plate 11 and the sliding gasket 4. At the same time, the limiting convex plate 21 of the semicircular part of the bottom of the transmission rod 6 is combined with the sliding gasket 4 to form a vertical upward and downward thrust to push the sliding gasket 4. The lock can be unlocked by the linking square upper tube 9 on the transmission rod 6. The gear square rod 8 is sleeved on the outer tube part of the transmission rod 6, so that the driving gear 10 on the gear square rod 8 is connected to the driving cavity 19 in the toothed plate 11. The driving teeth 20 drive engagement, so that the rotation of the transmission rod 6 drives the rotation of the driving gear 10, and the rotation and engagement of the driving gear 10 drives the driving teeth 20 to move vertically up and down, so that the tooth plate 11 can move and synchronously drive the sliding gasket 4 to slide inside the assembly cavity 2, and the driving opening groove 18 provided pushes and compresses the tooth plate compression spring member 5 upward. After the driving gear 10 rotates and disengages from the driving teeth 20, the resilience of the tooth plate compression spring member 5 is used to allow the sliding gasket 4 to move downward, and the tooth plate 11 and the sliding gasket 4 are restored to their initial state. When the button on the door handle is used to push the tooth plate 11, the gear square rod 8 is rotated through the tooth plate 11, which can drive the lock to be unlocked.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lock body transmission box, characterized in that, Including: A bottom plate (1), on one side of the bottom plate (1) there is an assembly cavity (2) formed by stamping into a rectangular concave surface. On both side edges inside the assembly cavity (2), there are installation cavities (3) in the shape of a semi-circular concave rectangular structure. And inside the installation cavities (3), there are toothed plate compression springs (5) which are press-fitted into the assembly cavity (2) through sliding gaskets (4) and are limitedly embedded, and the sliding gaskets (4) are movably installed in the assembly cavity (2) on the bottom plate (1); A transmission rod (6), at one end of the transmission rod (6) passing through the assembly cavity (2), there is integrally formed a semi-circular limit cam plate (7). And on the transmission rod (6), there are respectively sleeved a gear square rod (8) and a square upper cylinder (9). At one end of the gear square rod (8) located inside the assembly cavity (2), there is integrally formed a driving gear (10), and the driving gear (10) meshes and drives a toothed plate (11) sleeved on the transmission rod (6).

2. The lock body transmission box according to claim 1, wherein: On the side of the bottom plate (1) with the assembly cavity (2), there is a cover plate (12) covered. On the bottom side of the inner cavity of the outward convex part of the cover plate (12), there is vertically provided a limit sliding groove (13), and at the central position of the cover plate (12), there is a central shaft hole (14) through which the transmission rod (6) passes out.

3. A lock body transmission box according to claim 2, characterized in that: At the edge end of the cover plate (12), there is a clamping block (15) extending to one side and having an L-shaped structure for clamping and combining with the bottom plate (1). In the middle of both side edges of one side of the cover plate (12), there are screw members (16) fixedly passed through.

4. A lock body transmission box according to claim 1, characterized in that: On the surface of the sliding gasket (4), there is an activity cavity (17) for the toothed plate (11) to slide inside the inner cavity to drive the sliding gasket (4) to slide in the assembly cavity (2), and the toothed plate (11) is movably arranged in the activity cavity (17).

5. A lock body transmission box according to claim 1, characterized in that: At the positions corresponding to the toothed plate compression springs (5) on both side edges of the sliding gasket (4), there are driving opening grooves (18), and the driving opening grooves (18) are correspondingly attached to the periphery of the port of the installation cavity (3), and the exposed part of the toothed plate compression spring (5) is located inside the driving opening groove (18).

6. The lock body transmission box according to claim 1, wherein: On the surface of the toothed plate (11), there is a driving cavity (19) in the shape of a vertical ellipse. On one side inside the driving cavity (19), there is integrally formed a driving tooth (20), and the driving gear (10) at one end of the gear square rod (8) meshes with the driving tooth (20).

7. A lock body transmission box according to claim 3, characterized in that: At the central position of the outer bottom end of the toothed plate (11), there is integrally formed a limit convex plate (21) extending to one side, and the limit convex plate (21) is movably arranged in the limit sliding groove (13) on the surface of the cover plate (12).

8. A lock body transmission box according to claim 1, characterized in that: At the central position of the bottom plate (1), there is a central positioning through hole (22) for the transmission rod (6) to pass out and be limited. At one end of the transmission rod (6) with the limit cam plate (7), there is a gasket (23) fixed.

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