Safety belt lock head positioning tool for detecting locking force

Abstract

The utility model discloses a safety belt lock head positioning tool used for detecting locking force, comprising a lock head positioning assembly used for fixing a lock head; the lock head auxiliary supporting assembly comprises a supporting part and a lock head sensor socket assembly, the top face of the supporting part is flat, the supporting part is used for supporting a connecting structure at the rear end of the lock head, and the lock head sensor socket assembly can be matched with a sensor wire harness on the lock head. The lock head can be fixed and comprises a lock head body, an unlocking key on the lock head body and a lock head pair arranged at the other end of the unlocking key. The lock head positioning assembly can clamp the lock head body and expose the unlocking key for inserting the lock tongue, and the lock head pair supporting assembly can place a lock head pair, is provided with a lock head sensor socket and can receive a sensor signal input on the lock head.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, and in particular to a seat belt lock head positioning fixture for testing locking force. Background Technology

[0002] Seat belts are an important protective structure in cars. When a car is involved in a collision, seat belts can restrain the displacement of the occupants and buffer the impact energy, thus playing a role in protecting the passengers.

[0003] In the current seatbelt manufacturing process, the existing testing method involves two servo drive systems. One system directly drives the latch, applying pressure (tension) to it, while the other system directly drives a simulated finger pressing the unlock button. Due to the rigidity of both the testing system and the product under test, the latch's insertion and unlocking movements are extremely small. This minute change in the servo system's travel results in a large change in pressure (tension), meaning the slope of the servo system's displacement versus output force curve is large. Consequently, the force sensor feedback lags significantly behind the locking sensor signal (locking or unlocking signal). Because of the rigid connection, the latch cannot automatically eject after the unlock button is pressed, failing to fully simulate the product's actual working state. The locking sensor cannot promptly provide an unlocking signal. Based on these two points, the detected force displayed by the existing system deviates significantly from the actual product value, making it impossible to accurately measure the product's performance parameters.

[0004] During the testing process, the lock needs to be fixed in place, and the sensor signals inside the lock need to be received.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a seat belt lock head positioning fixture for detecting locking force, which can assist in the detection of the lock tongue and lock head.

[0007] To achieve the above objectives, this utility model provides a seat belt lock head positioning fixture for detecting locking force, comprising: a lock head positioning assembly for fixing the lock head; and a lock head secondary support assembly, including a support part and a lock head sensor socket assembly, wherein the top surface of the support part is flat and is used to support the connection structure at the rear end of the lock head, and the lock head sensor socket assembly is capable of matching the sensor wiring harness on the lock head.

[0008] In one or more embodiments, the feature is that it further includes a positioning fixture base plate, wherein the lock head positioning assembly and the lock head secondary support assembly are fixed on the positioning fixture base plate.

[0009] In one or more embodiments, the lock head positioning component includes a snap-fit ​​groove whose shape matches the lock head for snapping the lock head in place.

[0010] In one or more embodiments, the lock sensor socket assembly includes a signal output module capable of receiving signals input from the sensor harness and exporting the sensor signals to the control system of the detection device.

[0011] In one or more embodiments, the positioning fixture base plate is characterized by having a plurality of bolt holes, enabling the positioning fixture base plate to be assembled onto other components. In one or more embodiments, the positioning fixture base plate is characterized by being rectangular.

[0012] In one or more embodiments, the bolt holes are four in number and distributed at the four corners of the positioning fixture base plate.

[0013] This invention provides a seat belt lock head positioning fixture for detecting locking force, capable of fixing the lock head. The lock head includes a lock head body, an unlock button on the lock head body, and a lock head accessory located at the other end of the unlock button. The lock head positioning assembly can lock the lock head body and expose the unlock button for the bolt to insert. The lock head accessory support assembly can house the lock head accessory and has a lock head sensor socket capable of receiving sensor signals input from the lock head. Attached Figure Description

[0014] Figure 1 This is a detailed structural diagram of a seat belt lock head positioning fixture for detecting locking force, provided in an embodiment of this utility model.

[0015] Explanation of key figure labels:

[0016] 1-Locking head positioning assembly, 11-Snap-in slot, 2-Locking head auxiliary support assembly, 21-Support part, 22-Locking head sensor socket assembly, 3-Locking fixture base plate, 31-Bolt hole, 4-Locking head, 41-Sensor wiring harness, 42-Locking head auxiliary. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0018] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0019] A fixture for positioning seat belt lock heads to detect locking force, such as Figure 1 As shown, it includes: a lock head positioning assembly 1, which positions the lock head 4 for fixing the lock head 4; and a lock head secondary support assembly 2, which includes a support part 21 and a lock head sensor socket assembly 22. The support part 21 has a flat top surface and is used to support the connection structure at the rear end of the lock head 4. The lock head sensor socket assembly 22 can match the sensor wiring harness 41 on the lock head 4.

[0020] Specifically, the lock head 4 includes a lock head 4 body, an unlock button, and a lock head accessory 42. The unlock button and the lock head accessory 42 are located on opposite sides. The lock head accessory support assembly 2 is located at the rear end of the lock head positioning assembly 1. The rear end refers to the situation where, after the lock head 4 is fixed to the lock head positioning assembly 1, the unlock button on the lock head 4 faces one side, and the lock head accessory 42 is located at the rear end of the lock head 4, opposite to the unlock button. Therefore, the lock head accessory support assembly 2 is located on the opposite side of the unlock button. The lock head sensor socket assembly 22 can match the plug of the sensor wiring harness 41 on the lock head 4 and receive signals from the sensors on the lock head 4.

[0021] As an optional implementation, it also includes a positioning fixture base plate 3, on which the lock head positioning component 1 and the lock head auxiliary support component 2 are fixed.

[0022] Specifically, the lock head positioning assembly 1 and the lock head secondary support assembly 2 are provided with a plurality of first screw holes, and the positioning fixture base plate 3 is provided with a plurality of second screw holes corresponding to the first screw holes, and the two are connected by screw threads.

[0023] As an optional implementation, the lock head positioning component 1 includes a snap-fit ​​groove 11, the shape of which matches the lock head 4 and is used to snap the lock head 4 into place.

[0024] Specifically, the locking slot 11 is located on the top of the lock head positioning assembly 1, and is used to lock the lock head 4, and can expose the unlock button and the lock head accessory 42.

[0025] As an optional implementation, the lock sensor socket assembly 22 includes a signal output module that can receive signals input from the sensor harness 41 and output sensor signals to the control system of the detection device.

[0026] Specifically, the signal output by the sensor is a signal indicating that the lock is engaged within the lock head 4. This signal is then output to the control system of the detection device.

[0027] As an optional implementation, the positioning fixture base plate 3 is provided with a plurality of bolt holes 31, which can be used to assemble the positioning fixture base plate 3 onto other components.

[0028] Specifically, the positioning fixture base plate 3 is assembled onto other components via bolt holes 31 and bolts that match the bolt holes 31, and the other components are provided with corresponding bolt holes 31.

[0029] As an optional implementation, the positioning fixture base plate 3 is rectangular.

[0030] Specifically, the positioning fixture base plate 3 can also be a plate of other shapes, preferably a rectangular plate.

[0031] As an optional implementation, there are four bolt holes 31, distributed at the four corners of the positioning fixture base plate 3.

[0032] Specifically, the bolts can also be designed and varied according to the shape of the plate.

[0033] By adopting the above technical solution, a seat belt lock head positioning fixture for detecting locking force is provided, which can fix the lock head 4. The lock head 4 includes a lock head 4 body, an unlock button on the lock head 4 body, and a lock head accessory 42 disposed at the other end of the unlock button. The lock head positioning component 1 can lock the lock head 4 body and expose the unlock button for the bolt to be inserted. The lock head accessory support component 2 can house the lock head accessory 42 and has a lock head 4 sensor socket, which can receive sensor signals input from the lock head 4.

[0034] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A seat belt buckle positioning tool for detecting a locking force, characterized by, include: A lock head positioning assembly, wherein the lock head positioning is used to fix the lock head; A lock head secondary support assembly includes a support part and a lock head sensor socket assembly. The top surface of the support part is flat and is used to support the connection structure at the rear end of the lock head. The lock head sensor socket assembly can match the sensor wiring harness on the lock head.

2. The seat belt buckle positioning tool for detecting a locking force according to claim 1, wherein It also includes a positioning fixture base plate, on which the lock head positioning assembly and the lock head secondary support assembly are fixed.

3. The seat belt buckle positioning tool for detecting a locking force according to claim 1, wherein The lock head positioning component includes a snap-fit ​​groove, the shape of which matches the lock head and is used to snap the lock head in place.

4. The seat belt buckle positioning tool for detecting a locking force according to claim 1, wherein The lock sensor socket assembly includes a signal output module, which is capable of receiving signals input from the sensor harness and exporting the sensor signals to the control system of the detection device.

5. The seat belt buckle positioning tool for detecting a locking force according to claim 2, wherein The positioning fixture base plate is provided with multiple bolt holes, which can be used to assemble the positioning fixture base plate onto other components.

6. A seat belt buckle positioning tool for detecting a locking force according to claim 5, wherein The positioning fixture base plate is rectangular.

7. A seat belt buckle positioning tool for detecting a locking force according to claim 6, wherein There are four bolt holes, distributed at the four corners of the positioning fixture base plate.

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