A connecting device for detecting a vehicle suspension strut and a method for using the same

Abstract

The present invention discloses a connection device for testing vehicle suspension struts and a method for using the device. The device comprises a column and a base. The column is used to mount the vehicle suspension strut to be tested. The column is rotatably mounted on the base, which is mounted on a mechanical testing device. The horizontal direction and angle of the vehicle suspension strut are adjusted by a center mark line provided on the base, and rotation perpendicular to the horizontal plane is controlled by a limit bolt on the base. Through a rationally designed tooling, the device provides connection and positioning between the lower portion of the vehicle suspension strut and the mechanical testing device. During testing, the axis of the vehicle suspension strut can be aligned with or form an angle θ with the axis of the testing device, and the horizontal direction and angle of the vehicle suspension strut can be conveniently adjusted. The device is adaptable to different testing requirements and can meet the needs of testing the stiffness, resistance, resistance direction, maximum profile, and other characteristics of the vehicle suspension strut.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle suspension strut detection, and in particular relates to a connecting device for detecting a vehicle suspension strut and a method of using the same. Background Art

[0002] The performance of a vehicle's suspension strut is a key component of the vehicle's suspension. During vehicle and suspension design and development, to verify that the strut meets design requirements, it's necessary to test the strut's stiffness, resistance, direction of resistance, and maximum profile.

[0003] The current common practice is to indirectly verify the performance of vehicle suspension struts by testing their components or to verify their performance by installing them on a vehicle. To perform performance testing on vehicle suspension struts using mechanical testing equipment such as spring test benches and electronic universal test benches, a connecting device is required to secure the vehicle suspension struts during the testing process, ensuring that they are installed vertically or at a certain angle, and capable of adjusting their horizontal direction and angle. This proposal designs a connecting device that allows the lower end of the vehicle suspension strut to be connected and secured to the testing equipment, meeting testing requirements and enabling performance testing of the vehicle suspension struts on the testing equipment. Summary of the Invention

[0004] To overcome these shortcomings, the inventors of this invention, through long-term exploration, numerous experiments, and diligent research, have continuously innovated and reformed a connection device for testing vehicle suspension struts. This device, through rationally designed tooling, connects and positions the lower portion of the vehicle suspension strut with the mechanical testing equipment. This ensures that the axis of the vehicle suspension strut coincides with or forms an angle θ with the axis of the testing equipment during testing, and allows for convenient adjustment of the horizontal orientation and angle of the vehicle suspension strut. This device is adaptable to diverse testing requirements and can meet the needs of testing vehicle suspension struts for stiffness, resistance, resistance direction, and maximum profile.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a connection device for detecting vehicle suspension struts. It includes a column and a base. An open slot with a side opening is provided between the upper and lower surfaces of the base. The slot width is designed to match the clearance of the lug structure of the column. A long strip through hole is provided between the front and rear surfaces. The long strip through hole is located within the area of the open slot. A bolt hole is provided in the center of the left side of the base. The bolt hole penetrates into the long strip through hole. The lug structure at the bottom of the column is inserted into the open slot of the base from the upper surface of the base. The fixing bolt passes through the long strip through hole and the through hole on the lug structure at the same time. The column is rotatably installed on the base, and a limit screw is screwed into the bolt hole on the left side of the base. The bolt contacts the lug structure using a limit bolt to limit the distance between the center of the through hole on the lug structure of the column and the center of the countersunk hole; an upper hole and a lower hole are provided on the column, and fasteners are used to connect and fix the vehicle suspension strut through the upper hole and the lower hole of the column; a countersunk hole for connecting with the mechanical detection equipment is provided on the right side of the upper surface of the base, and the countersunk hole of the base is fastened to the center of the mechanical detection equipment with a bolt, and a center identification line corresponding to the center line of the countersunk hole is provided on the base. When connecting, the horizontal direction and angle of the vehicle suspension strut are adjusted by the center identification line on the base.

[0006] According to the connection device for detecting vehicle suspension struts described in the present invention, a further preferred technical solution is: a lug structure is provided at the bottom of the column, a through hole is provided on the lug structure, or a bearing is provided on the lug structure of the column, and a fixing bolt simultaneously passes through the long strip through hole of the base and the through hole or bearing hole on the column to achieve fixation; when the lug structure is provided with a through hole, the fixing bolt is used as a rotating axis; when the lug structure is provided with a bearing, tightening the fixing bolt serves as a tightening effect.

[0007] According to the connection device for detecting vehicle suspension struts described in the present invention, a further preferred technical solution is: the thickness K1 of the column is set based on the opening width of the vehicle suspension strut to be detected, and the thickness K2 of the lug structure is set based on the clearance fit achieved with the opening groove on the base.

[0008] According to the connection device for detecting vehicle suspension struts described in the present invention, a further preferred technical solution is: the center marking line is set perpendicular to the horizontal plane, located on the left side of the base, and the center marking line passes through the axis of the bolt hole.

[0009] According to the connection device for detecting vehicle suspension struts described in the present invention, a further preferred technical solution is: the opening groove is a square groove, an opening is set at the left corner of the square groove and the remaining corners are set as rounded corners, and the opening passes through the front surface of the base.

[0010] According to the connection device for detecting a vehicle suspension strut of the present invention, a further preferred technical solution is that the center lines of the opening slot, the countersunk hole, the bolt hole, and the elongated through hole are all located on the same plane.

[0011] According to the connection device for detecting a vehicle suspension strut described in the present invention, a further preferred technical solution is: the upper hole is located in the upper right corner of the column, and the lower hole is located in the middle of the left side of the column. The lower hole is a vertically arranged annular hole to adapt to the mounting holes at different positions on the vehicle suspension strut.

[0012] According to the connection device for detecting vehicle suspension struts described in the present invention, a further preferred technical solution is: a thread is set in the inner hole of the bolt hole, and a corresponding thread is set on the limit bolt. The forward and backward distance of the limit bolt is determined by the thread specification and the number of rotations of the limit bolt, or a scale is directly set on the limit bolt to realize distance reading.

[0013] According to the connection device for detecting a vehicle suspension strut of the present invention, a further preferred technical solution is that an L-shaped surface is provided at the lower portion of the column.

[0014] A method for using a connection device for testing vehicle suspension struts includes using fasteners to connect and fix the vehicle suspension struts through the upper and lower holes of the column. The countersunk hole of the base is fastened to the center of the mechanical testing equipment using bolts. During connection, the horizontal direction and angle of the vehicle suspension struts are adjusted using the center marking line on the base. Further adjustment is then performed using any of the following methods based on the angle required for testing:

[0015] Axis coincidence required: adjust the height difference H and horizontal spacing S of the upper and lower holes of the column according to the calculated data so that the axis of the vehicle suspension strut coincides with the axis of the testing equipment;

[0016] Angle θ is required: When the axis of the vehicle suspension strut forms an angle θ with the axis of the testing equipment, the column is rotated around the fixing bolt to an angle θ; the distance t from the center of the countersunk hole is adjusted using the limit bolt so that after the column is installed on the vehicle suspension strut, the distance between the rotation center of the vehicle suspension strut and the center of the countersunk hole meets the testing requirements;

[0017] After installation is completed, operate the spring test bench for inspection.

[0018] Compared with the prior art, the technical solution of the present invention has the following advantages / benefits:

[0019] 1. A method and device for testing the performance of vehicle suspension struts are provided. Through the rational design of the tooling, the lower portion of the vehicle suspension strut is connected and positioned with the mechanical testing equipment. During testing, the axis of the vehicle suspension strut and the testing equipment are aligned or at an angle θ. The horizontal orientation and angle of the vehicle suspension strut can also be easily adjusted. This device is adaptable to various testing requirements and can meet the needs of testing vehicle suspension struts for stiffness, resistance, resistance direction, and maximum profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 The present invention is a front view of a connection device for detecting a vehicle suspension strut.

[0022] Figure 2 The diagram is a left side view of a connection device for detecting a vehicle suspension strut according to the present invention.

[0023] Figure 3 The present invention is a front view of a column of a connection device for detecting a vehicle suspension strut.

[0024] Figure 4 The present invention is a left side view of a column of a connection device for detecting a vehicle suspension strut.

[0025] Figure 5 The present invention is a front view of a base of a connection device for detecting a vehicle suspension strut.

[0026] Figure 6 This is a left view of the base of a connection device for detecting a vehicle suspension strut according to the present invention.

[0027] Figure 7 The present invention is a structural schematic diagram of a connecting device for detecting vehicle suspension struts when the connecting device is installed facing the axis.

[0028] Figure 8 The present invention is a structural schematic diagram of a connecting device for detecting a vehicle suspension strut when the connecting device is installed at an angle θ facing the axis.

[0029] The markings in the figure are: 1. Column 101. Upper hole 102. Lower hole 103. Lug structure 1031. Through hole 2. Base 201. Opening slot 2011. Opening 202. Long strip through hole 2021. Fixing bolt 2031. Limiting bolt 204. Countersunk hole 3. Center marking line 4. Vehicle suspension strut 5. L-shaped surface. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0032] Example:

[0033] like Figures 1-8As shown, a connection device for detecting vehicle suspension struts. It includes a column 1 and a base 2. An open slot 201 with a side opening is provided between the upper and lower surfaces of the base 2. The slot width is designed to be clearance-matched with the lug structure 103 of the column 1. A long strip through hole 202 is provided between the front and rear surfaces. The long strip through hole 202 is located within the area of the open slot 201. A bolt hole is provided in the center of the left side of the base 2, and the bolt hole penetrates into the long strip through hole 202. The lug structure 103 at the bottom of the column 1 is inserted into the open slot 201 of the base 2 from the upper surface of the base 2. A fixing bolt 2021 simultaneously passes through the long strip through hole 202 and the through hole 1031 on the lug structure 103. The column 1 is rotatably installed on the base 2. A limiting bolt 2031 is screwed into the bolt hole on the left side of the base 2. The limiting bolt 2031 is used to contact the lug structure 103. , limiting the distance between the center of the through hole 1031 on the lug structure 103 of the column 1 and the center of the countersunk hole 204; an upper hole 101 and a lower hole 102 are provided on the column 1, and fasteners are used to connect and fix the vehicle suspension strut 4 through the upper hole 101 and the lower hole 102 of the column 1; a countersunk hole 204 for connecting to the mechanical detection equipment is provided on the right side of the upper surface of the base 2, and the countersunk hole 204 of the base 2 is fastened to the center of the mechanical detection equipment with bolts, and a center identification line 3 corresponding to the center line of the countersunk hole 204 is provided on the base 2. When connected, the horizontal direction and angle of the vehicle suspension strut 4 are adjusted by the center identification line 3 on the base 2. In three-dimensional coordinates, that is, the X direction is adaptively adjusted by the installation of the base 2, and the Y direction is adjusted by rotating the column 1.

[0034] The bottom of the column 1 is provided with a lug structure 103, and a through hole 1031 is provided on the lug structure 103, or a bearing is provided on the lug structure 103 of the column 1, and the fixing bolt 2021 passes through the long strip through hole 202 of the base 2 and the through hole 1031 or the bearing hole on the column 1 at the same time to achieve fixation. When the through hole 1031 is provided on the lug structure 103, the fixing bolt 2021 is used as a rotation axis, and when the bearing is provided on the lug structure 103, tightening the fixing bolt 2021 plays a tightening role, that is, as long as the rotation of the column 1 can be achieved, and the rotation direction of the column 1 needs to be restricted to ensure the accuracy of the position of the vehicle suspension strut 4 to be detected.

[0035] The thickness K1 of the column 1 is set based on the opening width of the vehicle suspension strut 4 to be tested, and the thickness K2 of the lug structure 103 is set based on the clearance fit achieved with the opening groove 201 on the base 2.

[0036] The center marking line 3 is set perpendicular to the horizontal plane and is located on the left side of the base 2, and the center marking line 3 passes through the axis of the bolt hole. This setting is convenient for determining the angle of the base 2. The countersunk hole 204 is installed first, but not tightened, and the base 2 can be rotated freely. At this time, the center marking line 3 and the countersunk hole 204 are located on the same plane. The position of the center marking line 3 can be directly used for positioning without the need for intermediate data conversion, which is simple and quick.

[0037] The opening groove 201 is a square groove, an opening 2011 is set at the left corner of the square groove and the remaining corners are set as rounded corners. The opening 2011 passes through the front surface of the base 2. The opening groove 201 is used to install the column 1 without the fixing bolt 2021 squeezing and deforming the base 2, making it difficult to move the column 1.

[0038] The center lines of the opening groove 201, countersunk hole 204, bolt hole and long strip through hole 202 are all located on the same plane, so that the positioning standards are unified during processing and it is easy to use and position. In fact, the center identification line 3 is also located on this plane.

[0039] The upper hole 101 is located at the upper right corner of the column 1, and the lower hole 102 is located in the middle of the left side of the column 1. The lower hole 102 is a vertically arranged annular hole to adapt to the mounting holes at different positions on the vehicle suspension strut 4. The shapes of the upper hole 101 and the lower hole 102 can actually be selected from round holes, annular holes, and even special-shaped holes. The column 1 is mainly used for installing the vehicle suspension strut 4 to be inspected. The use of annular holes can enhance its versatility and is convenient for use with vehicle suspension struts 4 or other parts to be inspected of different specifications.

[0040] A thread is set in the inner hole of the bolt hole, and a corresponding thread is set on the limit bolt 2031. The forward and backward distance of the limit bolt 2031 is determined by the thread specification and the number of rotations of the limit bolt 2031, or a scale is directly set on the limit bolt 2031 to realize distance reading. Any distance detection method can be used as long as the distance between the center of the through hole 1031 on the lug structure 103 of the column 1 and the center of the countersunk hole 204 can be accurately obtained.

[0041] An L-shaped surface 5 is provided at the lower part of the column. The L-shaped surface 5 means that the thickness of the column at the position where the lug structure 103 is located is equal to the thickness K1 of the lug structure 103, forming an L-shaped step with the normal column position. This is to facilitate the rotation of the lug structure 103. For the convenience of design, the shape of the thinner part connecting the lug structure 103 is roughly set to a triangle with an angle of 45°.

[0042] A method for using a connection device for testing vehicle suspension struts comprises: using fasteners to connect and fix the vehicle suspension strut 4 through the upper hole 101 and the lower hole 102 of the column 1; fastening the countersunk hole 204 of the base 2 to the center of the mechanical testing equipment with bolts; and adjusting the horizontal direction and angle of the vehicle suspension strut 4 using the center marking line 3 on the base 2 during connection. When testing the vehicle suspension strut 4, the axis of the vehicle suspension strut 4 forms an angle θ with the axis of the testing equipment, causing the column 1 to rotate to the angle θ around the fixing bolt 2021; and using the limiting bolt 2031 to adjust the distance t from the center of the countersunk hole 204 so that, after the vehicle suspension strut 4 is installed on the column 1, the distance between the rotation center of the vehicle suspension strut 4 and the center of the countersunk hole 204 meets the testing requirements;

[0043] When the vehicle suspension strut 4 is being tested, the axis of the vehicle suspension strut 4 forms an angle θ with the axis of the testing equipment. Rotate the column 1 to the angle θ around the fixing bolt 2021. Use the limit bolt 2031 to adjust the distance t from the center of the countersunk hole 204 so that after the column 1 is installed with the vehicle suspension strut 4, the distance between the rotation center of the vehicle suspension strut 4 and the center of the countersunk hole 204 can meet the testing requirements. Use fasteners to connect and fix the vehicle suspension strut 4 through the upper hole 101 and the lower hole 102 of the column 1, and the countersunk hole 204 of the base 2 is fastened to the center of the mechanical testing equipment with bolts. When connected, adjust the horizontal direction and angle of the vehicle suspension strut 4 through the center marking line 3 on the base 2. Due to the setting of the height difference H between the upper hole 101 of the column 1 and the lower hole 102 of the base 2 and the horizontal spacing S, the axis of the vehicle suspension strut 4 forms an angle θ with the axis of the testing equipment.

[0044] After installation is completed, operate the spring test bench for inspection.

[0045] Example 2:

[0046] This embodiment further describes in detail the situation where the axes are required to coincide.

[0047] A method for using a connection device for testing a vehicle suspension strut comprises: using fasteners to connect and fix the vehicle suspension strut 4 through the upper hole 101 and the lower hole 102 of the column 1; fastening the countersunk hole 204 of the base 2 to the center of the mechanical testing equipment with bolts; and during connection, adjusting the horizontal direction and angle of the vehicle suspension strut 4 using the center marking line 3 on the base 2 so that the axis of the vehicle suspension strut 4 coincides with the axis of the testing equipment:

[0048] The upper hole 101 and the lower hole 102 on the column 1 are set according to the arrangement of the inspected part. They can be set as two circular holes, or one circular hole and the other as a long hole, an elliptical hole, etc. The height difference H between the two holes and the horizontal spacing S are determined by the position of the hole of the inspected part. The thickness K1 of the column 1 is determined by the opening width of the inspected part. Here, a corresponding structure can also be set according to the mounting structure of the lower part of the vehicle suspension strut 4 on the suspension. An L surface and a lug structure 103 are set at the bottom of the column 1. The L surface is perpendicular to the center line of the vehicle suspension strut 4. A through hole 1031 or a bearing is set on the lug structure 103. Its thickness K2 is set to a clearance fit with the opening groove 201 on the base 2.

[0049] A countersunk hole 204 is provided on the base 2 as a hole for connection with the mechanical testing equipment. A center identification line 3 is provided corresponding to the center line of the countersunk hole 204. An open slot 201 with a side opening is provided, and the slot width is set to match the lug structure 103 of the column 1 or the bearing clearance on the lug structure 103. A long strip through hole 202 is provided on the side. A bolt hole is provided in the center of the left side of the base 2. For the detection of the vehicle suspension strut 4 with a single suspension, the open slot 201 here can also be changed to a U-shaped slot, and the side is set to a circular hole. The distance t between the center of the circular hole and the center of the countersunk hole 204 is determined by the rotation center position of the detected part.

[0050] Column 1 is inserted into the open slot 201 of base 2 from the larger surface of countersunk hole 204 in base 2. A stop bolt 2031 is screwed into the bolt hole on the left side of base 2 to determine the distance t between the center of the through hole 1031 or bearing on the upper lug structure 103 of column 1 and the center of the countersunk hole 204. A fixing bolt 2021 is inserted through the side hole of base 2 and the through hole 1031 or bearing hole of the upper lug structure 103 of column 1 to secure the column 1. When the upper lug structure 103 of column 1 functions as a bearing, fixing bolt 2021 can be tightened. When the upper lug structure 103 of column 1 functions as a through hole 1031, fixing bolt 2021 serves as a rotation axis.

[0051] When the axis of the vehicle suspension strut 4 coincides with the axis of the testing equipment during testing, the L surface of the column 1 is fitted with the upper surface of the base 2, and the column 1 can be quickly made perpendicular to the base 2. Use the limit bolt 2031 to adjust the distance t from the center of the countersunk hole 204 so that after the column 1 is installed with the vehicle suspension strut 4, the center of the vehicle suspension strut 4 can be coaxial with the center of the countersunk hole 204. Use fasteners to connect and fix the vehicle suspension strut 4 through the upper hole 101 and the lower hole 102 of the column 1, and the countersunk hole 204 of the base 2 is fastened to the center of the mechanical testing equipment with bolts. When connected, adjust the horizontal direction and angle of the vehicle suspension strut 4 through the center marking line 3 on the base 2. Due to the setting of the height difference H between the upper hole 101 and the lower hole 102 of the column 1 and the horizontal spacing S, the axis of the vehicle suspension strut 4 coincides with the axis of the testing equipment. That is, the height difference H and the horizontal spacing S of the upper hole 101 and the lower hole 102 of the column 1 are adjusted according to the calculated data so that the axis of the vehicle suspension strut 4 coincides with the axis of the detection equipment;

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention should be determined by the scope defined in the claims. Persons skilled in the art will appreciate that improvements and modifications may be made without departing from the spirit and scope of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A connection device for detecting a vehicle suspension strut, characterized in that: It includes a column and a base, an open slot with a side opening is provided between the upper and lower surfaces of the base, and the slot width is designed to match the clearance of the lug structure of the column, and a long strip through hole is provided between the front and rear surfaces, and the long strip through hole is located in the area of the open slot; a bolt hole is provided in the center of the left side of the base, and the bolt hole penetrates into the long strip through hole; the lug structure at the bottom of the column is inserted into the open slot of the base from the upper surface of the base, and the fixing bolt passes through the long strip through hole and the through hole on the lug structure at the same time, and the column is rotatably installed on the base, and a limiting bolt is screwed into the bolt hole on the left side of the base, and the limiting bolt is used to contact the lug structure to limit the distance between the center of the through hole on the lug structure of the column and the center of the countersunk hole; an upper hole and a lower hole are provided on the column , use fasteners to connect and fix the vehicle suspension strut through the upper and lower holes of the column; a countersunk hole for connecting to the mechanical testing equipment is set on the right side of the upper surface of the base, and the countersunk hole of the base is fastened to the center of the mechanical testing equipment with bolts, and a center identification line corresponding to the center line of the countersunk hole is set on the base. When connecting, the horizontal direction and angle of the vehicle suspension strut are adjusted by the center identification line on the base. The opening groove is a square groove, and an opening is set at the left corner of the square groove and the remaining corners are set to rounded corners. The opening passes through the front surface of the base. The thickness K1 of the column is set based on the opening width of the vehicle suspension strut to be tested, and the thickness K2 of the lug structure is set based on the opening groove on the base to achieve clearance fit.

2. A connection device for detecting a vehicle suspension strut according to claim 1, characterized in that: The bottom of the column is provided with a lug structure, a through hole is provided on the lug structure, or a bearing is provided on the lug structure of the column, and the fixing bolt passes through the long strip through hole of the base and the through hole or bearing hole on the column at the same time to achieve fixation. When the lug structure is provided with a through hole, the fixing bolt is used as a rotating axis, and when the lug structure is provided with a bearing, the fixing bolt is tightened to play a tightening role.

3. The connection device for detecting a vehicle suspension strut according to claim 1, characterized in that: The center marking line is set perpendicular to the horizontal plane, is located on the left side of the base, and passes through the axis of the bolt hole.

4. A connection device for detecting a vehicle suspension strut according to claim 1, characterized in that: The center lines of the opening groove, the countersunk hole, the bolt hole, and the long strip through hole are all located on the same plane.

5. The connection device for detecting a vehicle suspension strut according to claim 1, characterized in that: The upper hole is located at the upper right corner of the column, and the lower hole is located in the middle of the left side of the column. The lower hole is a vertically arranged annular hole to adapt to the installation holes at different positions on the vehicle suspension strut.

6. The connection device for detecting a vehicle suspension strut according to claim 1, characterized in that: The inner hole of the bolt hole is provided with a thread, and a corresponding thread is provided on the limit bolt. The distance of the limit bolt moving forward and backward is determined by the thread specification and the number of revolutions of the limit bolt, or a scale is directly provided on the limit bolt to realize distance reading.

7. The connection device for detecting a vehicle suspension strut according to claim 1, characterized in that: An L-shaped surface is provided at the lower portion of the column.

8. A method for using a connection device for detecting a vehicle suspension strut, characterized in that: According to the connection device for testing a vehicle suspension strut according to any one of claims 1 to 7, the vehicle suspension strut is connected and fixed through the upper and lower holes of the column using fasteners, the countersunk hole of the base is fastened to the center of the mechanical testing equipment using bolts, and during connection, the horizontal direction and angle of the vehicle suspension strut are adjusted using the center marking line on the base, and then further adjustment is performed using any of the following methods according to the angle required for testing: Axis coincidence required: adjust the height difference H and horizontal spacing S of the upper and lower holes of the column according to the calculated data so that the axis of the vehicle suspension strut coincides with the axis of the testing equipment; Angle θ is required: When the axis of the vehicle suspension strut forms an angle θ with the axis of the testing equipment, the column is rotated around the fixing bolt to an angle θ; the distance t from the center of the countersunk hole is adjusted using the limit bolt so that after the column is installed on the vehicle suspension strut, the distance between the rotation center of the vehicle suspension strut and the center of the countersunk hole meets the testing requirements; After installation is completed, operate the spring test bench for inspection.

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