Push-pull type door lock structure

Abstract

The utility model is suitable for the technical field of push-pull door locks of engineering trucks, and particularly relates to a push-pull door lock structure which comprises a push-pull door body, a push-pull handle is installed on the side face of the push-pull door body, a truck body lock seat is arranged on the side face of the push-pull door body, and a combined door lock is movably connected between the truck body lock seat and the push-pull door body. And a second mounting cavity is formed in the push-pull door body, and an oil storage tank is connected into the second mounting cavity. By arranging the oil storage tank, the submersible pump, the conveying pipe, the oil spraying nozzle, the moving spring, the contact block and the pressure sensor, when the push-pull type door body is pushed and pulled on the engineering vehicle, whether an abnormal friction phenomenon exists or not when the combined door lock on the push-pull type door body is in contact with the combined door lock on the vehicle body lock seat can be automatically detected; and when the phenomenon is found, lubricating oil can be automatically and timely supplemented for the combined door lock, so that the practicability of the push-pull type door lock structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of push-pull door locks for engineering vehicles, in particular to a push-pull door lock structure. Background Art

[0002] As an important door safety control device, the sliding door lock of engineering vehicles is responsible for ensuring that the door is tightly closed and safely locked during vehicle use. However, due to the frequent contact and movement between the sliding door body and the vehicle body, friction between the door lock and the vehicle body lock seat often occurs. Especially after long-term use, wear between the door lock components may occur, thus affecting the smooth sliding and locking of the door and the reliability of the locking function.

[0003] Traditional push-pull door lock structures for engineering vehicles often lack automated detection and lubrication functions, making it difficult to promptly detect and resolve friction problems between the door lock and the vehicle body lock seat, which can easily lead to door lock failure or inconvenience in use. Therefore, in response to the needs of the engineering vehicle push-pull door lock field, there is an urgent need for a push-pull door lock structure that can achieve automated detection and lubrication to improve its practicality and reliability. Utility Model Content

[0004] The purpose of the embodiments of the utility model is to provide a push-pull door lock structure, aiming to solve the technical problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A push-pull door lock structure comprises a push-pull door body, and a push-pull handle is installed on the side of the push-pull door body, a body lock seat is arranged on the side of the push-pull door body, and a combined door lock is movably connected between the body lock seat and the push-pull door body, a second installation cavity is opened inside the push-pull door body, and an oil storage tank is connected inside the second installation cavity, a submersible pump is installed inside the oil storage tank, and one end of the submersible pump is connected to a delivery pipe, an invisible groove is opened on the side of the push-pull door body, and an oil spray nozzle is installed inside the invisible groove;

[0007] A first installation cavity is provided inside the vehicle body lock seat, and a motion spring and a pressure sensor are respectively installed on both sides of the first installation cavity, and a contact block is arranged at one end of the motion spring.

[0008] Furthermore, an oil filling port is provided on the surface of the oil storage tank, and an oil filling port plug is detachably connected to the inside of the oil filling port.

[0009] Furthermore, one end of the delivery pipe is connected to the outside of the submersible pump, and the other end of the delivery pipe is connected to the inside of the oil spray nozzle.

[0010] Furthermore, the opening direction of the oil spray nozzle corresponds to the surface of the combined door lock.

[0011] Furthermore, a guide groove is provided on the inner wall of the first installation cavity, a guide column is connected to the side of the contact block, and the guide column is sequentially arranged through the movement spring and the interior of the guide groove.

[0012] Furthermore, the pressure sensor, contact block, guide column, motion spring and guide groove are all on the same axis.

[0013] The push-pull door lock structure provided by the utility model has the following beneficial effects:

[0014] By arranging an oil storage tank, a submersible pump, a delivery pipe, an oil spray nozzle, a motion spring, a contact block and a pressure sensor, when pushing and pulling the sliding door body on the engineering vehicle, it is possible to automatically detect whether there is abnormal friction when the combination door lock on the sliding door body contacts the combination door lock on the vehicle body lock seat, and when such a phenomenon is found, lubricating oil can be automatically and timely added to the combined door lock, thereby improving the practicality of the sliding door lock structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the structure of a push-pull door lock structure.

[0016] Figure 2 The figure is a partial structural diagram of a push-pull door lock structure.

[0017] Figure 3 A push-pull door lock structure Figure 2 Enlarged view of point A.

[0018] In the figure: 1. Sliding door body; 2. Sliding handle; 3. Vehicle body lock seat; 4. Combination door lock; 5. Submersible pump; 6. Oil storage tank; 7. Oil filling port plug; 8. Delivery pipe; 9. Invisible groove; 10. Oil injection nozzle; 11. First installation cavity; 12. Pressure sensor; 13. Contact block; 14. Guide groove; 15. Guide column; 16. Movement spring; 17. Second installation cavity. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0021] like Figure 1-Figure 3 As shown, a push-pull door lock structure provided by an embodiment of the utility model comprises a push-pull door body 1, and a push-pull handle 2 is installed on the side of the push-pull door body 1, a vehicle body lock seat 3 is arranged on the side of the push-pull door body 1, and a combined door lock 4 is movably connected between the vehicle body lock seat 3 and the push-pull door body 1. The above technical features are all mature existing technologies applied to engineering vehicle locks, and are technical solutions that are not difficult to obtain or think of by those skilled in the art. Those skilled in the art can make corresponding adjustments and selections based on the above technical solutions;

[0022] A second installation cavity 17 is provided inside the sliding door body 1, and an oil storage tank 6 is connected inside the second installation cavity 17, an oil filling port is provided on the surface of the oil storage tank 6, and an oil filling port plug 7 is detachably connected inside the oil filling port, and the oil filling port plug 7 and the oil filling port can be detachably connected together by threaded connection, and a detachable movable cover is also provided on the surface of the sliding door body 1, and the movable cover is screwed to the sliding door body 1, and the second installation cavity 17 can be directly exposed to the outside by removing the movable cover from the sliding door body 1;

[0023] When maintaining the engineering vehicle, the staff can first remove the movable cover from the sliding door body 1, and then unscrew the oil filling port plug 7 from the inside of the oil filling port, and then inject an appropriate amount of 0 into the oil filling port net oil storage tank 6;

[0024] A submersible pump 5 is installed inside the oil storage tank 6. The submersible pump 5 is a small pump body with good submersible and corrosion-resistant performance on the market. One end of the submersible pump 5 is connected to a delivery pipe 8. An invisible groove 9 is opened on the side of the sliding door body 1, and an oil spray nozzle 10 is installed inside the invisible groove 9. The slotting method of the invisible groove 9 belongs to concealed slotting, that is, ordinary personnel cannot directly see the existence of the invisible groove 9 and the oil spray nozzle 10 from observing the surface of the sliding door body 1. One end of the delivery pipe 8 is connected to the outside of the submersible pump 5, and the other end of the delivery pipe 8 is connected to the inside of the oil spray nozzle 10. The opening direction of the oil spray nozzle 10 corresponds to the surface of the combined door lock 4. After the submersible pump 5 is powered on, the 0 stored in the oil storage tank 6 can be effectively pumped into the inside of the delivery pipe 8 and the oil spray nozzle 10, and the 0 entering the inside of the oil spray nozzle 10 will be sprayed out in an atomized form;

[0025] A first installation cavity 11 is provided inside the vehicle body lock seat 3, and a motion spring 16 and a pressure sensor 12 are installed on both sides of the first installation cavity 11, a contact block 13 is provided at one end of the motion spring 16, a guide groove 14 is provided on the inner wall of the first installation cavity 11, a guide column 15 is connected to the side of the contact block 13, and the guide column 15 is sequentially arranged inside the motion spring 16 and the guide groove 14, and the pressure sensor 12, the contact block 13, the guide column 15, the motion spring 16 and the guide groove 14 are all on the same axis;

[0026] The pressure sensor 12 and the submersible pump 5 are both electrically connected to the vehicle controller, and the pressure sensor 12 can transmit the pressure signal received to the vehicle controller, and the vehicle controller can make further control commands to the submersible pump 5 according to the pressure signal.

[0027] The working principle of the push-pull door lock structure is as follows: when the push-pull door body 1 is pushed and pulled on the engineering vehicle, when the combined door lock 4 on the push-pull door body 1 is fully combined with the combined door lock 4 on the vehicle body lock seat 3, the push-pull door body 1 is in a closed state, and when the combined door lock 4 on the push-pull door body 1 is combined with the combined door lock 4 on the vehicle body lock seat 3, when a strong vibration occurs due to abnormal friction, the vibration energy of the two groups of combined door locks 4 will be transmitted to the motion spring 16, and the motion spring 16 will also vibrate after receiving the vibration energy, and drive the contact block 13 to move, and because the contact block 13 is limited in its motion trajectory by the guide column 15 and the guide groove 14, the contact block 13 will only move in a direction coaxial with the pressure sensor 12, and the contact block 13 will contact the pressure sensor 12, and then the pressure sensor 12 generates a pressure signal;

[0028] After the pressure sensor 12 generates a pressure signal, it will transmit the pressure signal to the vehicle controller, and the vehicle controller will turn on the submersible pump 5 according to the pressure signal. After the submersible pump 5 is powered on, it will pump the 0 inside the oil storage tank 6 into the delivery pipe 8 and the fuel injection nozzle 10, so that the fuel injection nozzle 10 will spray the 0 in a mist form on the combined door lock 4 that has been combined together, so as to provide lubricating oil replenishment for the combined door lock 4 in time, and avoid the combined door lock 4 from being reduced in service life due to long-term abnormal friction.

[0029] Through the above technical scheme, when pushing and pulling the sliding door body 1 on the engineering vehicle, it is possible to automatically detect whether there is abnormal friction when the combination door lock 4 on the sliding door body 1 contacts the combination door lock 4 on the vehicle body lock seat 3, and when such a phenomenon is found, the lubricating oil for the combined combination door lock 4 can be automatically and timely added, thereby improving the practicality of the sliding door lock structure.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sliding door lock structure, comprising a sliding door body (1), wherein a sliding handle (2) is installed on the side of the sliding door body (1), a vehicle body lock seat (3) is arranged on the side of the sliding door body (1), and a combined door lock (4) is movably connected between the vehicle body lock seat (3) and the sliding door body (1), characterized in that: A second installation cavity (17) is provided inside the sliding door body (1), and the interior of the second installation cavity (17) is connected to an oil storage tank (6), a submersible pump (5) is installed inside the oil storage tank (6), and one end of the submersible pump (5) is connected to a delivery pipe (8), and an invisible groove (9) is provided on the side of the sliding door body (1), and an oil spray nozzle (10) is installed inside the invisible groove (9); A first installation cavity (11) is provided inside the vehicle body lock seat (3), and a motion spring (16) and a pressure sensor (12) are respectively installed on both sides of the first installation cavity (11), and a contact block (13) is provided at one end of the motion spring (16).

2. A push-pull door lock structure according to claim 1, characterized in that: An oil filling port is provided on the surface of the oil storage tank (6), and an oil filling port plug (7) is detachably connected to the inside of the oil filling port.

3. A push-pull door lock structure according to claim 1, characterized in that: One end of the delivery pipe (8) is connected to the outside of the submersible pump (5), and the other end of the delivery pipe (8) is connected to the inside of the oil spray nozzle (10).

4. A push-pull door lock structure according to claim 1, characterized in that: The opening direction of the oil spray nozzle (10) corresponds to the surface of the combined door lock (4).

5. A push-pull door lock structure according to claim 1, characterized in that: A guide groove (14) is provided on the inner wall of the first installation cavity (11), a guide column (15) is connected to the side of the contact block (13), and the guide column (15) is sequentially arranged to penetrate the interior of the motion spring (16) and the guide groove (14).

6. A push-pull door lock structure according to claim 5, characterized in that: The pressure sensor (12), the contact block (13), the guide column (15), the motion spring (16) and the guide groove (14) are all on the same axis.

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