Internal transmission mechanism of gear and rack type motor home lock

Abstract

The utility model discloses an internal transmission mechanism of a gear and rack type motor home lock, which relates to the technical field of motor home lock structures and comprises a shell. The lock tongue is clamped in the shell in a sliding mode, a motor is arranged in the shell, one side of the motor is connected with a gear, a row of teeth are arranged on the inner side of the lock tongue, the teeth are in meshing transmission connection with the gear, the motor rotates to drive the gear to rotate, the gear pushes the lock tongue to do reciprocating linear motion, and locking and unlocking are freely achieved. In the process, the rotating shaft and the spring bolt are in a completely separated state, the motor stops, the mechanical key is inserted into the lock cylinder to rotate to drive the rotating shaft to move clockwise, the rotating shaft and the spring bolt start to be meshed, the spring bolt is pushed to move linearly, and locking can be completed.

Description

Technical Field

[0001] The utility model relates to the technical field of RV lock structures, in particular to a rack and pinion type internal transmission mechanism for a RV lock. Background Art

[0002] A RV lock is a lock used to protect the safety of an RV. It can prevent unauthorized personnel from entering the interior of the RV or stealing the RV. The RV locks on the market use a mechanical lock as the motive force, which is connected to the lock tongue through a gear connecting rod to drive the lock tongue to move linearly to complete the opening and closing of the lock. It is a rocker slider mechanism, and the electronic part is the motor that engages with the mechanical key gear through the gear to realize the linkage between the motor and the mechanical key.

[0003] The rocker mechanism of a traditional mechanical lock has many connecting parts and a relatively complex structure, which makes assembly more complicated and requires a variety of matching dimensions. In addition, the movement is prone to failure, resulting in the motor rotating and the lock tongue not moving. Therefore, we proposed a gear rack type RV lock internal transmission mechanism to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a gear rack type RV lock internal transmission mechanism to solve the problem proposed in the above background technology that the traditional mechanical lock has a rocker arm mechanism with many connecting parts and a relatively complex structure, which makes the assembly more complicated, the matching dimensions are various, and the movement is prone to failure, resulting in the phenomenon that the motor rotates and the lock tongue does not move.

[0005] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a rack and pinion type RV lock internal transmission mechanism, comprising a housing;

[0006] Also includes:

[0007] The lock tongue is slidably engaged in the interior of the shell. A motor is provided inside the shell. A gear is connected to one side of the motor. A row of teeth is provided on the inner side of the lock tongue, and the teeth are meshed and transmitted with the gear.

[0008] Preferably, a rotating shaft is provided inside the housing, and gear teeth are provided on one side of the outside of the rotating shaft, and the gear teeth are meshed with each other for transmission connection.

[0009] Preferably, a transmission rod is engaged inside the gear, a transmission box is provided at the bottom of the motor, the transmission rod is provided at the upper end of the transmission box, and the motor drives the transmission rod to rotate through the meshing transmission structure inside the transmission box.

[0010] Preferably, a snap-fit surface is provided on one side of the transmission rod, a connecting hole is provided inside the gear, and the snap-fit surface is snap-fitted to one side of the inner wall of the connecting hole.

[0011] Preferably, the rotating shaft is connected to the lock core.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. A locking tongue is arranged inside the housing, teeth are arranged on one side of the locking tongue, and a gear is arranged inside the housing. The gear is driven by a motor to rotate, and the gear meshes with the teeth for transmission, so that the locking tongue can be driven to move for locking and unlocking by driving the gear, improving the reliability and smoothness of the mechanism movement and the service life of the vehicle lock, simplifying the number of mechanical parts and the structure of the parts, facilitating the assembly process and the part processing process, and reducing the crank movement angle, thereby improving the mechanical movement efficiency.

[0014] 2. A rotating shaft is arranged inside the housing, gear teeth are arranged on one side of the rotating shaft, the gear teeth mesh with the teeth, and the rotating shaft is connected to the lock core. By using intermittent movement, the movement unity of the motor power and the mechanical power (key rotation) is realized. When the locking tongue is switched, the gear teeth on one side of the rotating shaft can disengage from the teeth on one side of the locking tongue, so that the rotation of the rotating shaft and the lock core will not be affected when the motor drives the gear to drive the locking tongue. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram before the opening of the present utility model;

[0016] Figure 2 is a schematic diagram during the opening process of the present utility model;

[0017] Figure 3 is a schematic diagram after the opening of the present utility model;

[0018] Figure 4 is an enlarged view of the structure at A of the present utility model;

[0019] In the figure: 1, locking tongue; 2, gear; 3, motor; 4, rotating shaft; 5, housing; 6, teeth; 7, transmission box; 8, gear teeth; 9, transmission rod; 10, engaging surface; 11, connection hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Please refer to Figures 1-4 , an embodiment provided by the present utility model: an internal transmission mechanism of a gear-rack type RV lock, including a housing 5;

[0022] It further includes:

[0023] The locking tongue 1 slides and engages inside the housing 5. A motor 3 is arranged inside the housing 5. A gear 2 is connected to one side of the motor 3. A row of teeth 6 is arranged inside the locking tongue 1, and the teeth 6 are in meshing transmission connection with the gear 2. A rotating shaft 4 is arranged inside the housing 5. Teeth 8 are arranged on the outer side of the rotating shaft 4, and the teeth 8 are in meshing transmission connection with the teeth 6.

[0024] The motor 3 rotates to drive the gear 2 to rotate. The gear 2 pushes the locking tongue 1 to make a reciprocating linear motion, freely realizing locking and unlocking. During this process, the rotating shaft 4 and the locking tongue 1 are in a completely disengaged state, and the motor 3 stops moving. The mechanical key is inserted into the lock core and rotated to drive the rotating shaft 4 to rotate clockwise. The rotating shaft 4 starts to engage with the locking tongue 1, pushing the locking tongue 1 to make a linear motion to complete locking. After locking, the teeth 8 on the side of the rotating shaft 4 are completely disengaged from the teeth 6.

[0025] Please refer to Figure 1 , a transmission rod 9 is engaged inside the gear 2. A transmission box 7 is arranged at the bottom of the motor 3. The transmission rod 9 is arranged at the upper end of the transmission box 7, and the motor 3 drives the transmission rod 9 to rotate through the meshing transmission structure inside the transmission box 7 for driving the transmission rod 9 to drive the gear 2 to rotate.

[0026] Please refer to Figure 4 , a engaging surface 10 is arranged on one side of the transmission rod 9. A connection hole 11 is arranged inside the gear 2, and the engaging surface 10 is in engaging connection with the inner wall surface of the connection hole 11, so that the transmission rod 9 will not slip in the connection hole 11.

[0027] Please refer to Figure 1 , the rotating shaft 4 is connected to the lock core to facilitate mechanical unlocking.

[0028] Working principle: When the mechanical key does not move, the motor 3 rotates to drive the gear 2 to rotate. The gear 2 pushes the locking tongue 1 to make a reciprocating linear motion, freely realizing locking and unlocking. During this process, the rotating shaft 4 and the locking tongue 1 are in a completely disengaged state, and the motor 3 stops moving. The mechanical key is inserted into the lock core and rotated to drive the rotating shaft 4 to rotate clockwise. The rotating shaft 4 starts to engage with the locking tongue 1, pushing the locking tongue 1 to make a linear motion to complete locking. After locking, the teeth 8 on the side of the rotating shaft 4 are completely disengaged from the teeth 6. The mechanical key rotates in the reverse direction, driving the rotating shaft 4 to rotate, so that the teeth 8 engage with the teeth 6 to push the locking tongue 1 to make a reverse linear motion to open the door lock. After opening, the teeth 8 are completely disengaged from the locking tongue 1.

[0029] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A gear (2) rack type RV lock internal transmission mechanism, comprising a housing (5); It is characterized in that: Also includes: A lock tongue (1) is slidably engaged in the interior of a housing (5); a motor (3) is provided in the housing (5); a gear (2) is connected to one side of the motor (3); a row of teeth (6) is provided on the inner side of the lock tongue (1), and the teeth (6) are meshed and connected to the gear (2).

2. The internal transmission mechanism of a gear (2) rack type motorhome lock according to claim 1, characterized in that: A rotating shaft (4) is provided inside the housing (5), and gear teeth (8) are provided on one side of the outside of the rotating shaft (4), and the gear teeth (8) are meshed and connected with the teeth (6).

3. The internal transmission mechanism of a gear (2) and rack type motorhome lock according to claim 1, characterized in that: A transmission rod (9) is engaged inside the gear (2), a transmission box (7) is provided at the bottom of the motor (3), the transmission rod (9) is provided at the upper end of the transmission box (7), and the motor (3) drives the transmission rod (9) to rotate through the meshing transmission structure inside the transmission box (7).

4. The internal transmission mechanism of a gear (2) and rack type motorhome lock according to claim 3, characterized in that: A snap-fit surface (10) is provided on one side of the transmission rod (9), a connecting hole (11) is provided inside the gear (2), and the snap-fit surface (10) is snap-fitted to one side of the inner wall of the connecting hole (11).

5. The internal transmission mechanism of a gear (2) rack type motorhome lock according to claim 2, characterized in that: The rotating shaft (4) is connected to the lock core.

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