An apparatus structure for simulating a use situation to detect a car door lock execution module

By using testing equipment that simulates usage scenarios and combining vertical and horizontal drive units with pressure sensing devices, the problem of inconvenient testing of electric and physical control methods for car door locks has been solved, enabling comprehensive testing of the car door lock execution module and ensuring its normal operation.

CN224681784UActive Publication Date: 2026-08-25XIONG HUA MACHINERY SUZHOU CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522006958.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-08-25
Estimated Expiration
2035-09-18

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively detect whether the electric and physical control mechanisms of car door locks are functioning properly, making testing inconvenient.

Method used

A testing device simulating usage scenarios was designed. By combining vertical and horizontal drive units with pressure sensing devices, the operation of the pull cord and electric motor were simulated respectively to test whether the driving force of the lock meets the standard.

Benefits of technology

It enables comprehensive testing of automotive door lock actuators, ensuring that both electric and physical control methods function properly, thus improving the convenience and accuracy of testing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224681784U_ABST
    Figure CN224681784U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of equipment structures of simulating use situation detection car door lock execution module, including product positioning table, the product press of being matched with product positioning table Settings, the pull wire pull device and motor power supply device located in the side of product positioning table, lock detection device is arranged below product positioning table, lock detection device includes horizontal linear drive unit, the detection rod carrier connected with horizontal linear drive unit, vertical lifting air cylinder installed on detection rod carrier, vertically detection rod, which is movably fitted in detection rod carrier and connected with the vertical lifting air cylinder, vertically detection rod can pass through product positioning table from bottom to top, insert lock, pressure sensing device is arranged between horizontal linear drive unit and detection rod carrier.The design judges whether lock meets standard in locking and unlocking state by the size of force suffered during vertically detection rod moving, and further judges whether door lock execution module is qualified or not.The design provides convenience for the detection of domestic car, commercial car door lock.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to testing equipment for automotive parts, specifically testing equipment for automotive door locks. Background Technology

[0002] Door locks for passenger and commercial vehicles include an execution module and a control module. The execution module houses the lock and an electric motor, which drives the lock to disengage from the latch on the vehicle frame. The lock is physically connected to a cable that extends to the handle of the control module. When the operator moves the door handle, the lock disengages from the latch. Thus, the door lock has two control methods: one is electric control, where pressing a button on the electric control module energizes the electric motor and drives the lock; the other is physical control, where the operator moves the door handle and pulls the cable, which in turn pulls the lock. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a structure for a door lock execution module testing device, which facilitates the testing of door locks for passenger cars and commercial vehicles.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a device structure for simulating usage scenarios to detect the execution module of a car door lock, including a product positioning platform, a product pressure fixture matched with the product positioning platform, a pull cable pulling device and a motor power supply device located next to the product positioning platform, and a lock detection device arranged below the product positioning platform. The lock detection device includes a horizontal linear drive unit, a detection rod carrier connected to the horizontal linear drive unit, a vertical lifting cylinder installed on the detection rod carrier, and a vertical detection rod movably fitted in the detection rod carrier and connected to the vertical lifting cylinder. The vertical detection rod can pass through the product positioning platform from bottom to top and insert into the lock. A pressure sensing device is arranged between the horizontal linear drive unit and the detection rod carrier.

[0005] According to the above technical solution, the door lock execution module is positioned on the product positioning platform, and the product clamp presses the door lock execution module firmly on the product positioning platform.

[0006] The cable-operated mechanism is not activated, and the motor power supply is not supplying power to the electric motor. The vertical lifting cylinder actuates, driving the vertical detection rod to rise and insert into the lock mechanism of the door lock actuator module. Subsequently, the horizontal linear drive unit drives the detection rod carrier to translate, and the vertical detection rod translates, directly driving the lock mechanism. Because the cable is not pulling the lock mechanism, and the electric motor is not driving it, the vertical detection rod requires a significant force to drive the lock mechanism. The magnitude of this force is measured by a pressure sensor, and the pressure value measured by the pressure sensor is fed back to the computer. The computer then determines whether the measured value is within acceptable limits based on standard values.

[0007] The motor power supply unit is not supplying power to the electric motor. The cable-operated device activates, pulling the cable of the door lock actuator module. The cable pulls the lock, and the lock is in the unlocked state. The vertical lifting cylinder activates, driving the vertical detection rod to rise and insert into the lock of the door lock actuator module. Afterwards, the horizontal linear drive unit drives the detection rod carrier to move horizontally, and the vertical detection rod moves horizontally as well. Since the lock has shifted and is in the unlocked state, the vertical detection rod should move horizontally without obstruction. The pressure sensor should measure zero pressure, which should be fed back to the computer. If the pressure sensor measures non-zero pressure at this time, it indicates that the cable cannot pull the lock into place to unlock, and the product is defective.

[0008] The cable-operated mechanism does not activate. The motor power supply unit powers the electric motor, which drives the lock, placing it in the unlocked state. The vertical lifting cylinder then activates, raising the vertical detection rod, which inserts into the lock mechanism of the door lock execution module. Subsequently, the horizontal linear drive unit drives the detection rod carrier to move horizontally, and the vertical detection rod moves horizontally as well. Since the lock has shifted and is in the unlocked state, the vertical detection rod should move horizontally without obstruction. The pressure sensor should measure zero pressure, which should be fed back to the computer. If the pressure sensor measures non-zero pressure, it indicates that the electric motor cannot drive the lock into position for unlocking, and the product is defective.

[0009] The testing rod carrier is equipped with a guide hole, in which the vertical testing rod is movably fitted. Driven by a vertical lifting cylinder, the vertical testing rod rises and falls along the guide hole.

[0010] The horizontal linear drive unit includes a movable base and a hydraulic cylinder connected to the movable base. A horizontal guide sleeve is mounted on the movable base, and a horizontal guide rod is fitted within the horizontal guide sleeve. One end of the horizontal guide rod is connected to a detection rod carrier, and the other end is connected to a connecting block. A pressure sensing device is installed between the connecting block and the movable base. Driven by the hydraulic cylinder, the movable base moves horizontally, driving the detection rod carrier via the horizontal guide rod. The detection rod carrier receives a force from the vertical detection rod and transmits this force to the horizontal guide rod, causing the horizontal guide rod to displace relative to the horizontal guide sleeve. This displacement acts on the pressure sensing device, enabling the pressure sensing device to detect the pressure magnitude.

[0011] The product positioning platform includes a horizontal positioning platform and an inclined positioning platform. The horizontal positioning platform is equipped with a horizontal positioning platform clamp, and the inclined positioning platform is equipped with an inclined positioning platform clamp. The door lock execution module, installed on the car door, is V-shaped and is entirely hidden within the door, with the lock portion exposed. When the door is closed, the latch on the frame inserts into the lock and engages with it, locking the door. To position the V-shaped door lock execution module, this invention employs a horizontal positioning platform and an inclined positioning platform, both also V-shaped.

[0012] The horizontal positioning table press includes a vertical cylinder for pressing, a lifting block connected to the vertical cylinder, an L-shaped press head hinged to the lifting block, and a pull rod hinged to the L-shaped press head. The pull rod is movably connected to a cylinder mounting base. The vertical cylinder for pressing is fixed to the cylinder mounting base. A tension spring is provided between the L-shaped press head and the lifting block. The vertical cylinder for pressing drives the lifting block to rise, and the lifting block drives the L-shaped press head to rise. However, the front part of the L-shaped press head is held by the pull rod, causing the L-shaped press head to tilt forward and press firmly onto the product.

[0013] The tilting positioning table fixture uses a rotary clamping cylinder, which is mounted on the side of the tilting positioning table via a rotary clamping cylinder seat.

[0014] The cable-operated device includes a cable head retainer and a cable drive cylinder connected to the cable head retainer. The cable head retainer has a cable head retaining groove. One end of the cable of the door lock actuator module is provided with a cable head, which is engaged in the cable head retaining groove. Under the drive of the cable drive cylinder, the cable head retainer pulls the cable, thereby unlocking the lock.

[0015] The motor power supply unit includes an electrical connector mounted on a socket and an electrical connector drive cylinder connected to the socket. Driven by the electrical connector drive cylinder, the electrical connector moves forward and engages with the electrical connector of the electric motor on the door lock actuator module. The electric motor is then energized and activates, driving the lock to unlock.

[0016] This utility model provides a structure for a door lock execution module testing device, which facilitates the testing of door locks for passenger cars and commercial vehicles. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 A schematic diagram of the device structure for simulating usage scenarios to test the car door lock execution module;

[0019] Figure 2 A schematic diagram of the device for locating the door lock execution module 90 in the simulated usage scenario detection of the car door lock execution module;

[0020] Figure 3 for Figure 1 A diagram from another perspective;

[0021] Figure 4 for Figure 1 A schematic diagram of the combined structure of the product positioning table 10, the horizontal positioning table fixture 21, the inclined positioning table fixture 22, and the motor power supply device 40;

[0022] Figure 5 for Figure 4 A diagram from another perspective;

[0023] Figure 6 for Figure 1 A schematic diagram of the lock detection device 50;

[0024] Figure 7 for Figure 6 A diagram from another perspective;

[0025] Figure 8 for Figure 1 Schematic diagram of the pull wire pulling device 30;

[0026] Figure 9 for Figure 8 A diagram from another perspective.

[0027] Explanation of symbols in the diagram:

[0028] 10. Product positioning table; 11. Horizontal positioning table; 12. Inclined positioning table;

[0029] 21. Horizontal positioning table press; 211. Vertical cylinder for press; 212. Lifting block; 213. L-shaped press head; 214. Tie rod; 215. Cylinder mounting base; 216. Tension spring;

[0030] 22. Inclined positioning table fixture; 221. Rotary clamping cylinder seat;

[0031] 30. Cable pulling device; 31. Cable head retainer; 311. Cable head retainer groove; 32. Cable driving cylinder;

[0032] 40. Motor power supply unit; 41. Socket; 42. Electrical connector; 43. Electrical connector-driven cylinder;

[0033] 50. Lock testing device; 51. Horizontal linear drive unit; 511. Moving base; 512. Hydraulic cylinder;

[0034] 52. Detection rod carrier; 53. Vertical lifting cylinder; 54. Vertical detection rod; 55. Pressure sensing device; 56. Horizontal guide sleeve; 561. Horizontal guide rod; 562. Connecting block;

[0035] 90. Door lock actuator module; 91. Electric motor; 92. Pull cable. Detailed Implementation

[0036] Combination Figures 1 to 3 , Figure 6 , Figure 7A device structure for simulating usage scenarios to detect the execution module of a car door lock includes a product positioning platform 10, a product pressure fixture matched with the product positioning platform, a pull cable pulling device 30 and a motor power supply device 40 located next to the product positioning platform, and a lock detection device 50 arranged below the product positioning platform. The lock detection device includes a horizontal linear drive unit 51, a detection rod carrier 52 connected to the horizontal linear drive unit, a vertical lifting cylinder 53 installed on the detection rod carrier, and a vertical detection rod 54 movably fitted in the detection rod carrier and connected to the vertical lifting cylinder. The vertical detection rod can pass through the product positioning platform from bottom to top and insert into the lock. A pressure sensing device 55 is arranged between the horizontal linear drive unit and the detection rod carrier.

[0037] like Figure 6 , Figure 7 The detection rod carrier 52 is provided with a guide hole, and the vertical detection rod 54 is movably fitted in the guide hole.

[0038] The horizontal linear drive unit 51 includes a movable seat 511 and a hydraulic cylinder 512 connected to the movable seat. A horizontal guide sleeve 56 is provided on the movable seat, and a horizontal guide rod 561 is fitted in the horizontal guide sleeve. One end of the horizontal guide rod is connected to the detection rod carrier 52, and the other end of the horizontal guide rod is connected to the connecting block 562. A pressure sensing device 55 is provided between the connecting block and the movable seat.

[0039] like Figure 4 , Figure 5 The product positioning platform 10 includes a horizontal positioning platform 11 and an inclined positioning platform 12. The horizontal positioning platform is equipped with a horizontal positioning platform presser 21, and the inclined positioning platform is equipped with an inclined positioning platform presser 22.

[0040] The horizontal positioning table press 21 includes a vertical cylinder 211 for press, a lifting block 212 connected to the vertical cylinder for press, an L-shaped press head 213 hinged to the lifting block, and a pull rod 214 hinged to the L-shaped press head. The pull rod is movably connected to a cylinder fixing seat 215. The vertical cylinder for press is fixed on the cylinder fixing seat. A tension spring 216 is provided between the L-shaped press head and the lifting block.

[0041] The tilting positioning table pressure fixture 22 adopts a rotary clamping cylinder, which is installed on the side of the tilting positioning table 12 via a rotary clamping cylinder seat 221.

[0042] like Figure 8 , Figure 9 The cable pulling device 30 includes a cable head retainer 31 and a cable driving cylinder 32 connected to the cable head retainer. The cable head retainer is provided with a cable head retaining groove 311.

[0043] like Figure 4 , Figure 5The motor power supply device 40 includes an electrical connector 42 mounted on a connector 41 and an electrical connector drive cylinder 43 connected to the connector.

[0044] refer to Figure 2 The door lock execution module 90 is positioned on the product positioning platform, and the product clamp presses the door lock execution module firmly on the product positioning platform.

[0045] The cable-pulling device 30 does not activate, and the motor power supply device 40 does not supply power to the electric motor 91. The vertical lifting cylinder 53 activates, driving the vertical detection rod 54 to rise, and the vertical detection rod inserts into the lock of the door lock execution module 90. Then, the horizontal linear drive unit 51 drives the detection rod carrier 52 to translate, and the vertical detection rod 54 translates, directly driving the lock. Because the cable 92 does not pull the lock, and the electric motor 91 does not drive the lock, the vertical detection rod 54 requires a relatively large force to drive the lock. The magnitude of the force is measured by the pressure sensor 55, and the pressure value measured by the pressure sensor is fed back to the computer. The computer judges whether the measured value is qualified according to the standard value.

[0046] When the motor power supply device 40 does not supply power to the electric motor 91, the cable pulling device 30 activates, pulling the cable 92 of the door lock execution module 90. The cable pulls the lock, and the lock is in the unlocked state. The vertical lifting cylinder 53 activates, driving the vertical detection rod 54 to rise, and the vertical detection rod inserts into the lock of the door lock execution module 90. Afterwards, the horizontal linear drive unit 51 drives the detection rod carrier 52 to move horizontally, and the vertical detection rod 54 moves horizontally. Since the lock has been moved and is in the unlocked state, the vertical detection rod 54 can move horizontally without obstruction. The pressure value measured by the pressure sensor 55 should be zero and fed back to the computer. If the pressure value measured by the pressure sensor is not zero at this time, it means that the cable 92 cannot pull the lock into place to unlock, and the product is unqualified.

[0047] When the cable-pulling device 30 is not activated, the motor power supply device 40 supplies power to the electric motor 91, which drives the lock, placing it in the unlocked state. The vertical lifting cylinder 53 activates, driving the vertical detection rod 54 upwards, inserting it into the lock of the door lock execution module 90. Subsequently, the horizontal linear drive unit 51 drives the detection rod carrier 52 to translate, and the vertical detection rod 54 also translates. Since the lock has shifted and is in the unlocked state, the vertical detection rod can move horizontally without obstruction, and the pressure value measured by the pressure sensor 55 should be zero, which should be fed back to the computer. If the pressure value measured by the pressure sensor is not zero at this time, it indicates that the electric motor cannot drive the lock to the desired position for unlocking, and the product is defective.

[0048] Working principle of the horizontal linear drive unit 51: Driven by the hydraulic cylinder 512, the moving seat 511 moves horizontally. The moving seat drives the detection rod carrier 52 through the horizontal guide rod 561. The detection rod carrier is subjected to the force from the vertical detection rod 54 and transmits the force to the horizontal guide rod 561. The horizontal guide rod moves relative to the horizontal guide sleeve 56. This displacement acts on the pressure sensing device 55, causing the pressure sensing device to detect the pressure magnitude.

[0049] The door lock actuator module 90, installed on the car door, is V-shaped and is entirely concealed within the door, with the lock portion exposed. When the door is closed, the latch on the frame engages with the lock, locking the door. To position the V-shaped door lock actuator module, this invention employs a horizontal positioning platform 11 and an inclined positioning platform 12, both also V-shaped.

[0050] Working principle of horizontal positioning table press 21. The press uses vertical cylinder 211 to drive lifting block 212 to rise, and lifting block drives L-shaped press head 213 to rise. However, the front part of L-shaped press head is pulled by pull rod 214, and L-shaped press head tilts forward and presses against the product.

[0051] Working principle of motor power supply device 40: Driven by the electric connector drive cylinder 43, the electric connector 42 moves forward and engages with the electric connector interface of the electric motor 91 on the door lock execution module 90. The electric motor is energized and drives the lock to unlock.

[0052] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device structure for simulating usage scenarios to detect the execution module of a car door lock, comprising a product positioning platform (10), a product clamping fixture matched with the product positioning platform, a pull cable pulling device (30) located beside the product positioning platform, and a motor power supply device (40), characterized in that: A lock detection device (50) is provided below the product positioning platform. The lock detection device includes a horizontal linear drive unit (51), a detection rod carrier (52) connected to the horizontal linear drive unit, a vertical lifting cylinder (53) installed on the detection rod carrier, and a vertical detection rod (54) movably fitted in the detection rod carrier and connected to the vertical lifting cylinder. The vertical detection rod can pass through the product positioning platform from bottom to top and insert the lock. A pressure sensing device (55) is provided between the horizontal linear drive unit and the detection rod carrier.

2. The device structure for simulating usage scenarios to detect the execution module of a car door lock as described in claim 1, characterized in that: The testing rod carrier (52) is provided with a guide hole, and the vertical testing rod (54) is movably fitted in the guide hole.

3. The device structure for simulating usage scenarios to detect the execution module of a car door lock as described in claim 1, characterized in that: The horizontal linear drive unit (51) includes a movable seat (511) and a hydraulic cylinder (512) connected to the movable seat. A horizontal guide sleeve (56) is provided on the movable seat. A horizontal guide rod (561) is fitted in the horizontal guide sleeve. One end of the horizontal guide rod is connected to the detection rod carrier (52), and the other end of the horizontal guide rod is connected to the connecting block (562). A pressure sensing device (55) is provided between the connecting block and the movable seat.

4. The device structure for simulating usage scenarios to detect the execution module of a car door lock as described in claim 1, characterized in that: The product positioning platform (10) includes a horizontal positioning platform (11) and an inclined positioning platform (12). The horizontal positioning platform is equipped with a horizontal positioning platform presser (21), and the inclined positioning platform is equipped with an inclined positioning platform presser (22).

5. The device structure for simulating usage scenarios to detect the execution module of a car door lock as described in claim 4, characterized in that: The horizontal positioning table press (21) includes a vertical cylinder (211) for press, a lifting block (212) connected to the vertical cylinder for press, an L-shaped press head (213) hinged to the lifting block, and a pull rod (214) hinged to the L-shaped press head. The pull rod is movably connected to a cylinder fixing seat (215). The vertical cylinder for press is fixed on the cylinder fixing seat. A tension spring (216) is provided between the L-shaped press head and the lifting block.

6. The device structure for simulating usage scenarios to detect the execution module of a car door lock as described in claim 4, characterized in that: The tilting positioning table press (22) uses a rotary clamping cylinder, which is installed on the side of the tilting positioning table (12) via a rotary clamping cylinder seat (221).

7. The device structure for simulating usage scenarios to detect the execution module of a car door lock as described in claim 1, characterized in that: The cable pulling device (30) includes a cable head retainer (31) and a cable driving cylinder (32) connected to the cable head retainer. The cable head retainer is provided with a cable head retaining groove (311).

8. The device structure for simulating usage scenarios to detect the execution module of a car door lock as described in claim 1, characterized in that: The motor power supply device (40) includes an electrical connector (42) mounted on a socket (41) and an electrical connector drive cylinder (43) connected to the socket.