Pressurization test detection device for automobile steering wheel button

Abstract

The invention relates to the technical field of steering wheel detection, and particularly discloses an automobile steering wheel button pressurization test detection device, which comprises a conveying assembly, a pressing assembly, a pressing assembly, a pressing assembly and a detection assembly, the sliding sleeve is movably installed on the hydraulic guide rail, a telescopic rod piece is fixed to the bottom of the sliding sleeve, a detection assembly is further installed at the output shaft end of the telescopic rod piece, a hinged support is further installed on the side wall of the detection assembly, a hydraulic pressurizing rod is further installed at the bottom of the hinged support, and a button rubber head is fixed to the lower end of the hydraulic pressurizing rod; the adjusting mechanism is located between the outer wall of the telescopic rod piece and the upper end of the hydraulic pressurizing rod and drives the hydraulic pressurizing rod to rotate in a hinged mode for angle adjustment and positioning control. The positioning of the steering wheel and the corresponding pressurization test of the button can be facilitated, the external force which is axially vertical and laterally inclined can be applied during the pressurization test detection, and the accuracy and effectiveness of the detection data are improved.

Description

Technical Field

[0001] The invention relates to the technical field of steering wheel detection, in particular to a pressure test detection device for automobile steering wheel buttons. Background Art

[0002] After the automotive steering wheels are prepared and assembled on the production line, in order to ensure the effectiveness and safety of the steering wheel assembly and use, it is necessary to conduct random inspections on the batches of steering wheels after the production line processing is completed, so as to test whether the sampled steering wheel samples have the effect of pressure resistance and button application sensitivity. Among them, the steering wheel button pressurization test can ensure the pressure resistance of the steering wheel buttons off the production line and the response sensitivity of routine applications through test inspections.

[0003] The existing automotive steering wheel pressure test detection device generally performs a button pressure test along the axial direction (i.e., vertical direction) where the button is installed during use to achieve the effect of the button pressure test. The conventional button operation application is taken into consideration during the test process, but there are still some deficiencies in use; For example, during normal use of the steering wheel, in addition to the axial pressure operation, the button operation will also apply an oblique external force from the side of the button due to different habits and living habits of the user. Due to the difference in the assembly method of the buttons on the steering wheel, the oblique external force pressure can easily cause oblique shear force at the button assembly position, resulting in the button's sensitivity failure and damping friction extrusion during use; Therefore, only the external force application test in the axial direction is given, and the data generated does not correspond to the use of the steering wheel under normal conditions, and the application effect of the data generated by the pressure test on the sensitivity of the steering wheel is not good.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original pressure test detection device of the automobile steering wheel button. Summary of the invention

[0005] The purpose of the present invention is to provide a pressure test detection device for automobile steering wheel buttons to solve the problem that the existing pressure test detection device for automobile steering wheel buttons proposed in the above background technology is not convenient to perform synchronous external force pressure tests on buttons in different oblique directions during axial pressure tests, which affects the accuracy of data generated by the steering wheel under test detection.

[0006] To achieve the above object, the present invention provides the following technical solution: a pressure test detection device for a car steering wheel button, comprising: A conveying assembly, wherein a positioning plate is fixed on the conveying belt, a numerical control assembly is installed on the front side of the conveying assembly, and a circular track is fixed above the top of the center of the conveying assembly, and a hydraulic guide rail is movably installed in the diameter direction inside the circular track; It also includes: a sliding sleeve, which is movably mounted on the hydraulic guide rail, and a telescopic rod is fixed at the bottom of the sliding sleeve, a detection component is also installed at the output shaft end of the telescopic rod, and a hinged support is also installed on the side wall of the detection component, a hydraulic pressure rod is also installed at the bottom of the hinged support, and a button rubber head is fixed at the lower end of the hydraulic pressure rod; The adjustment mechanism is located between the outer wall of the telescopic rod and the upper end of the hydraulic pressure rod, and drives the hydraulic pressure rod to adjust the angle and control the positioning of the hinged rotation.

[0007] Preferably, the connection between the positioning plate and the conveyor belt is arranged in a strip-shaped structure, and the strip-shaped connection position is perpendicular to the conveying direction of the conveyor belt; In addition, magnetic strips are arranged one by one between the bottom edges of the left and right sides of the positioning plate and the outer wall of the conveyor belt, and the adjacent magnetic strips are arranged magnetically on opposite sides.

[0008] Preferably, a limit block for engaging with the steering wheel is provided at the top outer wall edge of the positioning plate, and a connecting wire and a connector are also installed on the positioning plate, and the connecting wire and the connector are electrically connected; At the same time, the CNC component is also connected to a plug connector through a communication wire. The plug connector is movably installed on the side of the conveying component, wherein the plug connector is driven by a motor screw, and the plug connector and the connecting head are relatively distributed, and infrared sensors for alignment are arranged on the plug connector and the connecting head.

[0009] Preferably, the inner wall of the annular track is distributed in an annular serrated structure, wherein the connection between the annular track and the hydraulic guide rail is a sliding installation, and a servo motor and a matching gear structure are provided at the end of the connection of the hydraulic guide rail, and the hydraulic guide rail is driven to move through the engagement between the gear and the serrated structure.

[0010] Preferably, the sliding sleeve is vertically coaxially fixed to the telescopic rod and the detection assembly, wherein an outer wall of the detection assembly and the hinged support form a snap-fit ​​sliding installation, and an elastic member is also provided at the sliding connection between the two.

[0011] Preferably, the hydraulic pressure rod and the button rubber head are arranged in one-to-one correspondence, and the hydraulic pressure rod and the button rubber head are distributed at equal angles on the outside of the detection component, and the button rubber head and the detection component form a relative lifting structure.

[0012] Preferably, the adjustment mechanism comprises an adjustment bracket fixed to the upper end of the hydraulic pressure rod, wherein the adjustment bracket and the hydraulic pressure rod are fixed at a hinged rotation connection with the hinged support; The adjustment mechanism also includes a guide bracket fixed at the bottom of the outer side wall of the telescopic rod, a guide telescopic rod is fixed to the other end of the guide bracket away from the telescopic rod, and the adjustment bracket and the guide bracket are vertically distributed and slidably installed, and an electromagnet is provided at the output shaft end of the guide telescopic rod, and the electromagnet and the permanent magnet on the upper end outer wall of the adjustment bracket are magnetically positioned.

[0013] Preferably, the guide bracket and the guide telescopic rod are both arranged in an arc shape, and the arc centers of the two are located on the hinged rotation center axis of the hinged support; In addition, the guide bracket, the guide telescopic rod, the adjustment bracket and the button rubber head are located in the same projection plane.

[0014] Preferably, a delivery pipeline is also installed on the outer side wall of the telescopic rod, wherein an electric control valve body is fixed to the bottom of the guiding telescopic rod, and a guide pipe is connected between the delivery pipeline, the electric control valve body and the hydraulic pressure rod in sequence.

[0015] Preferably, the adjustment bracket is arranged in a "V"-shaped structure, wherein the adjustment bracket and the detection component are in the same projection plane.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the pressure test detection device for automobile steering wheel buttons can facilitate the positioning of the steering wheel and the corresponding pressure test of the buttons, and can apply axial vertical and lateral inclined external forces during the pressure test, thereby improving the accuracy and effectiveness of the test data and facilitating the recording of data. The specific contents are as follows: 1. It is only necessary to set the position of the bar at the connection of the positioning plate and install the magnetic strip to facilitate the assembly and installation of the positioning plate on the conveyor belt. At the same time, when the positioning plate is transported on the conveyor belt, the deflection change of the conveyor belt in different areas will not cause the positioning plate to become loose and fall due to unstable installation; Furthermore, the matching arrangement for connecting the wires, the connectors and the movably installed plug connectors facilitates the control of the conveying and positioning of the conveying assembly under the operation of the infrared sensor and the CNC circuit for the alignment application, and can also stably perform the alignment assembly of the connectors and the plug connectors, so that the data changes of the steering wheel during the pressurization test can be recorded and displayed by the CNC assembly.

[0017] 2. A circular track and a hydraulic guide rail are provided to facilitate the movement of the telescopic rod and the detection assembly, so that they can accurately align various buttons of different sizes on the steering wheel. A hydraulic pressure rod and a button rubber head are provided on the side of the detection assembly, which can not only perform axial button pressure test detection, but also achieve anti-collision protection for the detection assembly; Furthermore, the articulated support and the detection component form a relative lifting structure, which is convenient for the application of the detection component. At the same time, the arc-shaped guide bracket and the guide telescopic rod are utilized so that the button rubber head can be controlled to rise and fall by the hydraulic pressure rod, and can also be driven by the guide telescopic rod to cause the button rubber head to rotate around the hinge node installed on the articulated support, so that the button rubber head can be unfolded and folded for use. When testing the steering wheel button, an external force is applied in an oblique direction to the edge position of the button to achieve the effect of test detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front structure of the present invention; Figure 2 It is a schematic diagram of the back structure of the present invention; Figure 3 This is a schematic diagram of the positioning plate structure of the present invention; Figure 4 This is a schematic diagram of the connection structure between the positioning plate and the conveying assembly of the present invention; Figure 5 This is a schematic diagram of the alignment installation structure of the connector and the plug connector of the present invention; Figure 6 This is a schematic diagram of the hydraulic guide rail installation structure of the present invention; Figure 7 This is a schematic diagram of the installation distribution structure of the telescopic rod and the detection assembly of the present invention; Figure 8 This is a schematic diagram of the installation structure of the adjustment bracket and the button rubber head of the present invention; Fig. 9 It is a schematic diagram of the regulating mechanism of the present invention; Fig.10 This is a schematic diagram of the button rubber head structure of the present invention; Fig.11 This is a schematic diagram of the installation structure of the adjusting bracket and the guiding telescopic rod of the present invention.

[0019] In the figure: 1. conveying component; 2. positioning plate; 201. limit block; 202. connecting wire; 203. connector; 204. plug connector; 205. magnetic strip; 3. CNC component; 4. ring track; 5. hydraulic guide rail; 6. sleeve; 7. telescopic rod; 8. detection component; 9. hinged support; 10. hydraulic pressure rod; 11. button rubber head; 12. adjustment bracket; 13. guide bracket; 14. guide telescopic rod; 15. electromagnet; 16. conveying pipeline; 17. electric control valve body; 18. guide tube. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 11 The present invention provides a technical solution: a pressure test detection device for a car steering wheel button, comprising: A conveying assembly 1, wherein a positioning plate 2 is fixed on the conveying belt, a numerical control assembly 3 is installed on the front side of the conveying assembly 1, and a circular track 4 is fixed above the top of the center of the conveying assembly 1, and a hydraulic guide rail 5 is movably installed in the diameter direction inside the circular track 4; the connection between the positioning plate 2 and the conveying belt is arranged in a strip structure, and the strip connection position is perpendicular to the conveying direction of the conveying belt; and magnetic strips 205 are arranged one by one between the bottom edges of the left and right sides of the positioning plate 2 and the outer wall of the conveying belt, and the adjacent magnetic strips 205 are arranged magnetically on opposite surfaces; In the above technical solution, by Figure 1-Figure 4 As shown, the steering wheel is placed and positioned by the positioning disk 2, and the positioning disk 2 and the steering wheel thereon are transported by the conveyor belt of the conveying assembly 1. During the stable transportation and pressurization test detection process, the magnetic attraction of the magnetic strip 205 improves the positioning stability of the positioning disk 2. At the same time, when the conveyor belt changes direction and the disturbance changes during transportation, the magnetic attraction between the magnetic strips 205 will be disconnected, and the positioning disk 2 will be temporarily connected by the strip connection position at the bottom of the positioning disk 2, so that the positioning disk 2 can undergo stable pressurization test detection and cyclic movement.

[0022] Another example Figure 5In the technical solution shown in the figure, a limit block 201 is arranged on the outer wall edge of the top of the positioning plate 2, and a connecting wire 202 and a connector 203 are also installed on the positioning plate 2, and the connecting wire 202 and the connector 203 are electrically connected; at the same time, a plug connector 204 is also connected to the numerical control component 3 through a communication wire, and the plug connector 204 is movably installed on the side of the conveying component 1, wherein the plug connector 204 is driven by a motor screw, and the plug connector 204 is arranged opposite to the connector 203, and a positioning device is arranged on the plug connector 204 and the connector 203. The infrared sensor used; the application of the connecting wire 202, after the steering wheel is placed inside the positioning plate 2, is connected to the steering wheel through the connecting wire 202, and after the plug connector 204 and the connector 203 are aligned as a whole through the infrared sensor and numerical control, the plug connector 204 is connected to the connector 203, so that when the subsequent steering wheel button is pressed to increase pressure, the pressurized test detection data can be fed back and accurately recorded through the numerical control component 3, and good and accurate test detection data can be obtained under the application of external forces in different directions, strengths and shearing effects.

[0023] This technical solution is also Figure 5 It also includes: a sliding sleeve 6, which is movably installed on the hydraulic guide rail 5, and a telescopic rod 7 is fixed to the bottom of the sliding sleeve 6, a detection assembly 8 is also installed on the output shaft end of the telescopic rod 7, and a hinged support 9 is also installed on the side wall of the detection assembly 8, a hydraulic pressure rod 10 is also installed at the bottom of the hinged support 9, and a button rubber head 11 is fixed at the lower end of the hydraulic pressure rod 10; the inner wall of the annular track 4 is distributed in an annular serrated structure, wherein the connection between the annular track 4 and the hydraulic guide rail 5 is a sliding installation, and a servo motor and a matching gear structure are arranged at the end of the connection of the hydraulic guide rail 5, and the hydraulic guide rail 5 is driven to move through the meshing between the gear and the serrated structure; When conducting a button pressurization test on the steering wheel, the buttons on the steering wheel are positioned through the detection component 8, which includes a camera, a pattern comparison and detection unit, etc. The detection component 8 detects the aligned buttons, and uses a CNC-controlled servo motor to drive the hydraulic guide rail 5 to move, drive the hydraulic guide rail 5 to move and rotate around the vertical center axis of the annular track 4, and also drive the sleeve 6 on the hydraulic guide rail 5 to move, thereby achieving the position movement of the sleeve 6 and the telescopic rod 7, so that the hydraulic pressure rod 10 and the button rubber head 11 on the lower side of the telescopic rod 7 are aligned with the buttons on the steering wheel, and subsequent button pressurization test is carried out.

[0024] This technical solution also includes Figure 5-Figure 9The technical scheme shown in the figure discloses an adjustment mechanism, which is located between the outer wall of the telescopic rod 7 and the upper end of the hydraulic pressure rod 10, and drives the hydraulic pressure rod 10 to adjust the angle and control the positioning of the hinged rotation; the sliding sleeve 6 is vertically coaxially fixed with the telescopic rod 7 and the detection assembly 8, wherein the outer wall of the detection assembly 8 and the hinge support 9 form a sliding installation that is engaged, and an elastic member is also provided at the sliding connection between the two; the hydraulic pressure rod 10 and the button rubber head 11 are arranged one by one, and the hydraulic pressure rod 10 and the button rubber head 11 are distributed at equal angles on the outside of the detection assembly 8, and the button rubber head 11 and the detection assembly 8 form a relative lifting structure; In the above technical scheme, the button rubber head 11 can be controlled to rise and fall by the hydraulic pressure rod 10, so that the button rubber head 11 can be located at the lower outer side of the detection component 8, so that the button rubber head 11 can isolate and protect the detection component 8. In case of collision, the button rubber head 11 and the hinged support 9 and elastic member slidably mounted thereon can be used to unload external force; at the same time, during this process, the button rubber head 11 is adjusted to the upper outer side of the detection component 8, and the button rubber head 11 will not affect the observation field of the detection component 8, and affect its comprehensive observation of the steering wheel; at the same time, during the subsequent press detection, through the use of the adjustment mechanism, it is possible to drive the button rubber head 11 to rise and fall or articulate and rotate, change the positioning angle, so that when the button rubber head 11 is controlled to move alone with the hydraulic pressure rod 10, the button rubber head 11 can give the steering wheel button a vertical axis or an inclined and oblique press to perform a pressurization test.

[0025] Embodiment 2: This technical solution adopts Figure 7-Figure 11 The content shown specifically describes the adjustment mechanism, wherein the adjustment mechanism includes an adjustment bracket 12 fixed to the upper end of the hydraulic pressure rod 10, wherein the fixing point of the adjustment bracket 12 and the hydraulic pressure rod 10 is hingedly connected to the hinged support 9; and the adjustment mechanism also includes a guide bracket 13 fixed to the bottom of the outer wall of the telescopic rod 7, and the other end of the guide bracket 13 away from the telescopic rod 7 is fixed with a guide telescopic rod 14, and the adjustment bracket 12 and the guide bracket 13 are vertically distributed and penetrate the sliding installation, and at the same time, the output shaft end of the guide telescopic rod 14 is provided with an electromagnet 15, and the electromagnet 15 and the permanent magnet on the upper end outer wall of the adjustment bracket 12 are magnetically positioned; the guide bracket 13 and the guide telescopic rod 14 are both arranged in an arc shape, and the arc centers of the two are located on the hinged rotation center axis of the hinged support 9; and the guide bracket 13 and the guide telescopic rod 14 and the adjustment bracket 12 and the button rubber head 11 are located in the same projection plane; the adjustment bracket 12 is arranged in a "V"-shaped structure, wherein the adjustment bracket 12 and the detection component 8 are in the same projection plane; In the above scheme, when the steering wheel button is pressed, the output shaft of the telescopic rod 7 is firstly used to move the detection assembly 8 and the hydraulic pressure rod 10, the button rubber head 11 and the hinged support 9 downward synchronously. When the hydraulic pressure rod 10 moves downward, it simultaneously drives the adjustment bracket 12 to descend. When the adjustment bracket 12 descends to the bottom, the permanent magnet on the adjustment bracket 12 and the electromagnet 15 set at the output shaft end of the guide telescopic rod 14 are magnetically positioned, and the electromagnet 15 starts to work. At this time, the output shaft of the telescopic rod 7 is reversely contracted. Since the guide bracket 13 is fixed to the outer wall of the telescopic rod 7, the contraction of the output shaft of the telescopic rod 7 will only drive the detection assembly 8 to move upward. The detection assembly 8 is stored for anti-collision, and the adjustment bracket 12 is Due to the magnetic positioning, the hydraulic pressure rod 10 and the button rubber head 11 remain relatively still at the same time. During this process, the articulated support 9 slides on the outer wall of the detection component 8; subsequently, when the steering wheel button needs to be pressed vertically, the hydraulic pressure rod 10 can be used to control the button rubber head 11 to move downward for vertical pressing; the guide telescopic rod 14 can also be used to drive the adjustment bracket 12 to rotate around the hinge point of the articulated support 9, so that the hydraulic pressure rod 10 controls the button rubber head 11 to change its direction, and the button rubber head 11 presses the steering wheel button in an inclined manner, which is more in line with the direction of the pressing external force when the steering wheel is in use. At the same time, the hydraulic pressure rod 10 and the button rubber head 11 in different directions can realize the button pressure test detection when needed.

[0026] The following technical solution is also adopted: a delivery pipe 16 is also installed on the outer wall of the telescopic rod 7, wherein an electric control valve body 17 is fixed to the bottom of the guide telescopic rod 14, and a guide pipe 18 is connected between the delivery pipe 16, the electric control valve body 17 and the hydraulic pressure rod 10 in sequence; In the above scheme, through the control of the external oil pressure device and the electric control valve body 17, the independent extension and retraction operation of the guide telescopic rod 14 and the hydraulic pressure rod 10 can be selectively controlled to be started, thereby improving the sensitivity and accuracy of their use.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 pressure test detection device for a car steering wheel button, comprising: A conveying assembly (1), wherein a positioning plate (2) is fixed on the conveying belt, a numerical control assembly (3) is installed on the front side of the conveying assembly (1), and a circular track (4) is fixed above the top of the center of the conveying assembly (1), and a hydraulic guide rail (5) is movably installed in the diameter direction inside the circular track (4); It is characterized by further comprising: A sliding sleeve (6) is movably mounted on the hydraulic guide rail (5), and a telescopic rod (7) is fixed to the bottom of the sliding sleeve (6), a detection assembly (8) is also mounted on the output shaft end of the telescopic rod (7), and a hinged support (9) is also mounted on the side wall of the detection assembly (8), a hydraulic pressure rod (10) is also mounted on the bottom of the hinged support (9), and a button rubber head (11) is fixed to the lower end of the hydraulic pressure rod (10); The adjustment mechanism is located between the outer wall of the telescopic rod (7) and the upper end of the hydraulic pressure rod (10), and drives the hydraulic pressure rod (10) to adjust the angle of hinged rotation and control the positioning.

2. The pressure test detection device for a car steering wheel button according to claim 1 is characterized in that: The connection between the positioning plate (2) and the conveyor belt is arranged in a strip-shaped structure, and the strip-shaped connection position is perpendicular to the conveying direction of the conveyor belt; Furthermore, magnetic attraction strips (205) are arranged one-to-one between the bottom edges of the left and right sides of the positioning plate (2) and the outer wall of the conveyor belt, and adjacent magnetic attraction strips (205) are magnetically arranged on opposite sides.

3. A pressure test detection device for a car steering wheel button according to claim 1 or 2, characterized in that: A limit block (201) for engaging with the steering wheel is provided at the top outer wall edge of the positioning plate (2), and a connecting wire (202) and a connector (203) are also installed on the positioning plate (2), and the connecting wire (202) and the connector (203) are electrically connected; At the same time, the numerical control component (3) is also connected to a plug connector (204) via a communication wire, and the plug connector (204) is movably installed on the side of the conveying component (1), wherein the plug connector (204) is driven by a motor screw, and the plug connector (204) and the connector (203) are arranged relative to each other, and infrared sensors for alignment are arranged on the plug connector (204) and the connector (203).

4. The pressure test detection device for a car steering wheel button according to claim 1 is characterized in that: The inner wall of the annular track (4) is distributed in an annular sawtooth structure, wherein the connection between the annular track (4) and the hydraulic guide rail (5) is arranged for sliding installation, and a servo motor and a matching gear structure are arranged at the end of the connection of the hydraulic guide rail (5), and the hydraulic guide rail (5) is driven to move through the meshing between the gear and the sawtooth structure.

5. A pressure test detection device for a car steering wheel button according to claim 1 or 4, characterized in that: The sliding sleeve (6) is coaxially fixed to the telescopic rod (7) and the detection assembly (8) vertically, wherein the outer wall of the detection assembly (8) and the hinged support (9) form a snap-fitting sliding installation, and an elastic member is also provided at the sliding connection between the two.

6. The pressure test detection device for automobile steering wheel buttons according to claim 5 is characterized in that: The hydraulic pressure rod (10) and the button rubber head (11) are arranged in a one-to-one correspondence, and the hydraulic pressure rod (10) and the button rubber head (11) are distributed at equal angles outside the detection component (8), and the button rubber head (11) and the detection component (8) form a relative lifting structure.

7. The pressure test detection device for automobile steering wheel buttons according to claim 5 is characterized in that: The adjustment mechanism comprises an adjustment bracket (12) fixed to the upper end of a hydraulic pressure rod (10), wherein the adjustment bracket (12) and the hydraulic pressure rod (10) are fixed at a hinged rotational connection with a hinged support (9); The adjustment mechanism also includes a guide bracket (13) fixed to the bottom of the outer wall of the telescopic rod (7); a guide telescopic rod (14) is fixed to the other end of the guide bracket (13) away from the telescopic rod (7); the adjustment bracket (12) and the guide bracket (13) are vertically distributed and slidably installed; an electromagnet (15) is provided at the output shaft end of the guide telescopic rod (14); the electromagnet (15) and the permanent magnet on the upper outer wall of the adjustment bracket (12) are magnetically attracted and positioned.

8. The pressure test detection device for automobile steering wheel buttons according to claim 7 is characterized in that: The guide bracket (13) and the guide telescopic rod (14) are both arranged in an arc shape, and the arc centers of the two are located on the hinged rotation center axis of the hinged support (9); Furthermore, the guide bracket (13), the guide telescopic rod (14), the adjustment bracket (12), and the button rubber head (11) are located in the same projection plane.

9. A pressure test detection device for a car steering wheel button according to claim 8, characterized in that: A delivery pipe (16) is also installed on the outer side wall of the telescopic rod (7), wherein an electric control valve body (17) is fixed to the bottom of the guide telescopic rod (14), and a guide pipe (18) is connected in sequence between the delivery pipe (16), the electric control valve body (17) and the hydraulic pressure rod (10).

10. A pressure test detection device for a car steering wheel button according to any one of claims 7 to 9, characterized in that: The adjustment bracket (12) is arranged in a "V"-shaped structure, wherein the adjustment bracket (12) and the detection component (8) are located in the same projection plane.

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