Measuring device for oil storage cylinder and spring plate of automobile shock absorber

By designing a measuring device that includes a vertical rod, a horizontal arm, a support plate, a mounting plate, and a laser rangefinder, the problems of poor accuracy and cumbersome operation of traditional measuring devices are solved. This device enables high-precision measurement of the depth of the oil reservoir and the lift dimension of the spring disc, and is suitable for oil reservoirs of different specifications.

CN224066106UActive Publication Date: 2026-03-31SICHUAN NINGJIANG SHANCHUAN MACHINERY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional measuring devices have poor accuracy in measuring the depth of the oil reservoir and the lift of the spring disc in automotive shock absorbers, are cumbersome to operate, have difficulty in ensuring stable laser beam irradiation, and have poor versatility.

Method used

A measuring device comprising a vertical rod, a horizontal arm, a support plate, a mounting plate, and a laser rangefinder was designed. The laser beam is stably irradiated by a rotating base and a positioning sleeve, and precise measurement is performed by combining a scale and a pointer. It is suitable for oil storage tanks of different specifications.

Benefits of technology

It achieves high-precision and easy-to-operate measurement of oil reservoir depth and spring disc lift dimensions, with stable laser beam irradiation, and is suitable for oil reservoirs of various specifications.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224066106U_ABST
    Figure CN224066106U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of measuring devices for automobile shock absorbers, and particularly relates to a measuring device for an oil storage cylinder and a spring plate of an automobile shock absorber. The lift size of a spring disc 13 is measured, a mounting plate is rotated around L1, a pointer on the mounting plate is made to be aligned with a point A, a laser range finder emits a laser beam downwards along the axis L1 of the oil storage cylinder through a laser beam channel, and the height h1 of the point A is measured; the mounting plate continues to be rotated around the axis L1 of the oil storage barrel, the pointer on the mounting plate is aligned with the point B, the laser range finder emits laser beams downwards along the axis L1 of the oil storage barrel through the laser beam channel, and the height h2 of the point B is measured; and repeating the steps to measure the height h3 of the point C and the height of the point D, wherein the height of the point D is also h1. And the depth of the inner cavity of the oil storage cylinder is measured, a laser beam emitted by the laser range finder is downwards emitted to the bottom of the inner cavity of the oil storage cylinder through the laser beam channel along the axis L1 of the oil storage cylinder, and then the depth h4 of the inner cavity of the oil storage cylinder is measured. Operation is convenient and measurement precision is high.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to the measuring device technical field of automobile shock absorber, specifically related to a kind of measuring device for the oil reservoir and spring disc of automobile shock absorber. BACKGROUND

[0002] Generally, the outer surface of the oil reservoir of automobile shock absorber (hereinafter referred to as: shock absorber) is provided with spring disc, and the spring disc is a circular ring structure arranged obliquely, and the line from the high point to the low point of the spring disc has an included angle less than 90° with the axis L1 of the oil reservoir. The outer surface of the oil reservoir is further provided with a spring, and the spring disc limits the lower end of the spring, and the spring is located on the side of the spring disc facing the opening of the oil reservoir. Through the cooperation of the spring disc and the spring, the shock absorber as a whole can reduce vibration and impact.

[0003] The depth of the oil reservoir of the shock absorber and the lift size of the spring disc of the shock absorber need to be accurately measured. The depth of the oil reservoir of the shock absorber is directly related to the oil storage, damping effect and ride comfort, and the lift size of the spring disc of the shock absorber is closely related to the stroke, spring compression amount, response speed and ride safety. Therefore, accurate measurement of the depth of the oil reservoir of the shock absorber and the lift size of the spring disc of the shock absorber is of great significance to evaluate the performance of the shock absorber.

[0004] Traditional measurement methods, such as using depth gauge and protractor to cooperate for manual measurement, have poor measurement accuracy, complicated operation process and poor universality, resulting in large measurement error. Laser range finder can also be used instead of depth gauge for measurement, but in actual use, it is difficult to ensure stable laser beam irradiation, and there are also technical problems such as complicated operation process and poor universality. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem to provide a kind of measuring device for the oil reservoir and spring disc of automobile shock absorber, it is convenient to operate and measurement accuracy is high.

[0006] The technical scheme adopted by the utility model to solve its technical problems is: the measuring device for the oil reservoir and spring disc of automobile shock absorber, including vertical rod, the upper end of the vertical rod is provided with cross arm, the lower end of the vertical rod is provided with the fixed seat for being connected with the lower end of the oil reservoir of shock absorber;

[0007] One end of the cross arm is connected with the top end of the vertical rod, the other end of the cross arm is provided with support plate;

[0008] The support plate is provided with a first through hole arranged vertically, the support plate is provided with a mounting plate arranged above itself, the mounting plate is rotationally connected with the support plate through a rotating seat arranged in the first through hole, the rotating center of the rotating seat coincides with the axis L1 of the oil storage cylinder, the rotating seat is provided with a second through hole arranged vertically, the mounting plate is provided with a third through hole arranged vertically, and the mounting plate is provided with a laser range finder arranged above itself;

[0009] The upper surface of the support plate is provided with a scale disc for indicating the rotation angle, and the mounting plate is provided with a pointer for cooperating with the scale disc;

[0010] The support plate is provided with a positioning sleeve arranged below itself and vertically;

[0011] The first through hole, the second through hole, the third through hole, the scale disc and the positioning sleeve are coaxially arranged; the central through holes of the first through hole, the second through hole, the third through hole and the positioning sleeve jointly form a laser beam channel through which the laser beam of the laser range finder passes.

[0012] Further, the first through hole comprises a large hole section and a small hole section arranged adjacent to each other and in communication, and the connection part of the large hole section and the small hole section is provided with a horizontally arranged annular limiting surface;

[0013] The rotating seat comprises a mounting sleeve and a bearing; the upper end of the mounting sleeve is connected with the mounting plate and arranged below the mounting plate; the central through hole of the mounting sleeve serves as the second through hole, and the mounting sleeve and the bearing are coaxially arranged with the third through hole; the lower end surface of the mounting sleeve is in contact with the annular limiting surface, and the bearing is installed between the outer side surface of the mounting sleeve and the inner side surface of the large hole section.

[0014] Further, the outer peripheral surface of the positioning sleeve is provided with an annular positioning boss arranged along the circumferential direction of the positioning sleeve, the annular positioning boss is provided with a plurality of annular positioning bosses arranged along the axial direction of the positioning sleeve, and the distance from the outer side surface of the annular positioning boss to the axis of the positioning sleeve decreases from top to bottom.

[0015] Further, the mounting plate is provided with a horizontal sliding groove with an opening facing upward, one end of the horizontal sliding groove is adjacent to one end of the horizontal arm, and the other end extends away from the horizontal arm;

[0016] The housing of the laser range finder is provided with a sliding block in sliding cooperation with the horizontal sliding groove, and the end of the horizontal sliding groove away from the horizontal arm is provided with a notch for the sliding block to enter;

[0017] The third through hole is located at the bottom of the horizontal sliding groove and at one end of the mounting plate close to the cross arm, and the third through hole is communicated with the inner cavity of the horizontal sliding groove.

[0018] Further, the limiting elastic sheet is provided, one end of the limiting elastic sheet is a mounting end, and the other end is a limiting end; the length direction L2 of the limiting elastic sheet and the length direction L3 of the horizontal sliding groove have an included angle therebetween;

[0019] The mounting end of the limiting elastic sheet is connected with one end of the mounting plate close to the cross arm and is located at one side of the horizontal sliding groove in the width direction; the limiting end of the limiting elastic sheet is abutted against the inner side wall of the horizontal sliding groove close to the notch end of the horizontal sliding groove and is located at the other side of the horizontal sliding groove in the width direction;

[0020] The end of the horizontal sliding groove adjacent to the cross arm is a closed end; the limiting elastic sheet is located at one side of the third through hole and forms a fixed space between the inner side wall of the horizontal sliding groove and the end face of the closed end of the horizontal sliding groove, so that the position of the laser range finder is fixed.

[0021] Further, the support plate is provided with an annular groove with an opening facing upward, and the scale disc is arranged in the annular groove.

[0022] Further, one end of the cross arm away from the vertical rod is connected with the support plate through the interference fit of the clamping groove and the clamping portion.

[0023] Further, the bottom surface of the mounting plate is provided with a first annular mounting groove recessed upward, and the first annular mounting groove is coaxially arranged with the third through hole; and the upper end of the mounting sleeve is located in the first annular mounting groove and is interference fit.

[0024] Further, the bottom surface of the support plate is provided with a second annular mounting groove recessed upward, and the second annular mounting groove is coaxially arranged with the first through hole; and the upper end of the positioning sleeve is located in the second annular mounting groove and is interference fit.

[0025] Further, the mounting plate is in a strip-shaped structure, and the length direction of the horizontal sliding groove is parallel to the length direction of the mounting plate.

[0026] Compared with the prior art, the measuring device for the oil storage cylinder and the spring disc of the automobile shock absorber is convenient to operate and has high measurement precision. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a use schematic view of the utility model;

[0028] Figure 2 is the front view schematic diagram of the utility model;

[0029] Figure 3 is the top view schematic diagram of the utility model;

[0030] Figure 4 is the cut structure schematic diagram of the support plate and the positioning sleeve in the utility model;

[0031] Figure 5 is Figure 1 the E part in the enlarged view;

[0032] Figure 6 is the top view schematic diagram of A, B, C and D points when measuring the lift size of the spring disc;

[0033] Significant: 1-Vertical rod; 2-Horizontal arm; 3-Fixed seat; 4-Horizontal rotation shaft; 5-Support plate; 501-First through hole; 5011-Major hole section; 5012-Small hole section; 5013-Ring limiting surface; 502-Dial; 503-Ring groove; 6-Mounting plate; 601-Horizontal sliding slot; 6011-Third through hole; 602-Pointer; 7-Laser range finder; 8-Positioning sleeve; 801-Ring positioning boss; 9-Mounting sleeve; 10-Bearing; 11-Limiting elastic sheet; 1101-Mounting end; 1102-Limiting end; 12-Oil storage cylinder; 13-Spring disc. DETAILED DESCRIPTION

[0034] The utility model is further explained below by combining with the accompanying drawings, Figure 1 、 2 , 3, 4, 5, 6 and the embodiment.

[0035] The application discloses a measuring device for oil reservoir and spring disc of automobile shock absorber, which comprises a vertical rod 1, the upper end of the vertical rod 1 is provided with a horizontal arm 2, the lower end of the vertical rod 1 is provided with a fixing seat 3 for connecting with the lower end of the oil reservoir 12 of the shock absorber, one end of the horizontal arm 2 is connected with the top end of the vertical rod 1, the other end of the horizontal arm 2 is provided with a support plate 5, the support plate 5 is provided with a first through hole 501 arranged vertically, the support plate 5 is provided with a mounting plate 6 arranged above the support plate 5, the mounting plate 6 is rotationally connected with the support plate 5 through a rotating seat arranged in the first through hole 501, the rotating center of the rotating seat coincides with the axis L1 of the oil reservoir 12, the rotating seat is provided with a second through hole arranged vertically, the mounting plate 6 is provided with a third through hole 6011 arranged vertically, the mounting plate 6 is provided with a laser range finder 7 arranged above the mounting plate 6, the upper surface of the support plate 5 is provided with a scale disc 502 for indicating the rotation angle, the mounting plate 6 is provided with a pointer 602 used in cooperation with the scale disc 502, the support plate 5 is provided with a positioning sleeve 8 arranged below the support plate 5 and vertically, the first through hole 501, the second through hole, the third through hole 6011, the scale disc 502 and the positioning sleeve 8 are coaxially arranged, and the middle through holes of the first through hole 501, the second through hole, the third through hole 6011 and the positioning sleeve 8 jointly form a laser beam channel for the laser beam of the laser range finder 7.

[0036] The fixing seat 3 is connected with the lower end of the oil reservoir 12 of the shock absorber. Specifically, the fixing seat 3 is a wedge-shaped block, the wider end of the wedge-shaped block is connected with the lower end of the vertical rod 1, and the narrower end of the wedge-shaped block is inserted into the bracket opening of the side of the lower end of the oil reservoir 12, so that the fixing seat 3 is connected with the lower end of the oil reservoir 12 of the shock absorber. Preferably, the wider end of the wedge-shaped block is provided with a mounting hole for the vertical rod 1 to pass through, and the vertical rod 1 is provided with a limiting nut 301 arranged below the wedge-shaped block.

[0037] Specifically, one end of the horizontal arm 2 is connected with the top end of the vertical rod 1 through a horizontal rotating shaft 4.

[0038] The positioning sleeve 8 is inserted into the oil reservoir 12 from the upper end of the oil reservoir 12 to realize positioning. The first through hole 501, the second through hole, the third through hole 6011, the scale disc 502 and the positioning sleeve 8 are coaxially arranged with the oil reservoir 12. The mounting plate 6 provides mounting support for the laser range finder 7, so that the laser beam of the laser range finder 7 can be stably irradiated, thereby ensuring the measurement accuracy. Through the setting of the rotating seat, the mounting plate 6 can rotate around the axis L1 of the oil reservoir 12 relative to the support plate 5.

[0039] The measurement of the lift size of the spring disc 13 comprises the following steps:

[0040] S1, four measurement points are selected along the circumference of the spring disc 13, which are A, B, C and D points. Specifically,

[0041] A point is the lower end point of the spring, as the lift reference point of the spring disc 13;

[0042] B point is higher than A point in the vertical direction, and the angle between the line from B point to O point, the center of the oil reservoir 12, and the line from A point to O point is Φ1;

[0043] C point is higher than B point in the vertical direction, and the angle between the line from C point to O point, the center of the oil reservoir 12, and the line from A point to O point is Φ2, Φ1<Φ2;

[0044] D point is in the same horizontal plane as A point, and D point and A point have a distance in the horizontal plane.

[0045] S2, rotate the mounting plate 6 around L1, so that the pointer 602 on the mounting plate 6 is aligned with A point, the laser range finder 7 emits a laser beam along the axis L1 of the oil reservoir 12 through the laser beam channel downward, and the height h1 of A point is measured; continue to rotate the mounting plate 6 around the axis L1 of the oil reservoir 12, so that the pointer 602 on the mounting plate 6 is aligned with B point, the laser range finder 7 emits a laser beam along the axis L1 of the oil reservoir 12 through the laser beam channel downward, and the height h2 of B point is measured; further rotate the mounting plate 6 around the axis L1 of the oil reservoir 12, so that the pointer 602 on the mounting plate 6 is aligned with C point, the laser range finder 7 emits a laser beam along the axis L1 of the oil reservoir 12 through the laser beam channel downward, and the height h3 of C point is measured; further rotate the mounting plate 6 around the axis L1 of the oil reservoir 12, so that the pointer 602 on the mounting plate 6 is aligned with D point, the laser range finder 7 emits a laser beam along the axis L1 of the oil reservoir 12 through the laser beam channel downward, and the height of D point is measured, which is also h1.

[0046] The depth of the inner cavity of the oil reservoir 12 is measured, including the step that the laser beam emitted by the laser range finder 7 is shot along the axis L1 of the oil reservoir 12 through the laser beam channel to the bottom of the inner cavity of the oil reservoir 12, and the depth of the inner cavity of the oil reservoir 12 is measured as h4. The depth of the inner cavity of the oil reservoir 12 is h4.

[0047] Preferably, the first through hole 501 includes a large hole section 5011 and a small hole section 5012 arranged adjacent to each other and connected, and the connection between the large hole section 5011 and the small hole section 5012 has a horizontally arranged annular limiting surface 5013; the rotating seat includes a mounting sleeve 9 and a bearing 10; the upper end of the mounting sleeve 9 is connected with the mounting plate 6 and located below the mounting plate 6; the through hole in the middle of the mounting sleeve 9 serves as the second through hole, and the mounting sleeve 9 and the bearing 10 are coaxially arranged with the third through hole 6011; the lower end surface of the mounting sleeve 9 is in contact with the annular limiting surface 5013, and the bearing 10 is installed between the outer side surface of the mounting sleeve 9 and the inner side surface of the large hole section 5011.

[0048] The annular limiting surface 5013 provides limiting effect for the mounting sleeve 9 and the bearing 10. By arranging the mounting sleeve 9 and the bearing 10, the relative rotation of the mounting plate 6 and the support plate 5 around the axis L1 of the oil storage cylinder 12 is realized.

[0049] Preferably, the outer circumferential surface of the positioning sleeve 8 is provided with annular positioning bosses 801 arranged along the circumferential direction thereof, and the annular positioning bosses 801 are provided in plurality, the plurality of annular positioning bosses 801 are sequentially arranged along the axial direction of the positioning sleeve 8, and the distance from the outer side surface of the plurality of annular positioning bosses 801 to the axis of the positioning sleeve 8 decreases sequentially from top to bottom. By arranging the plurality of annular positioning bosses 801, the positioning sleeve 8 is suitable for oil storage cylinders 12 of various specifications with different inner diameters.

[0050] In order to facilitate the installation of the laser range finder 7, preferably, the mounting plate 6 is provided with a horizontal sliding groove 601 with an opening facing upward, one end of the horizontal sliding groove 601 is adjacent to one end of the horizontal arm 2, and the other end extends away from the horizontal arm 2; the housing of the laser range finder 7 is provided with a sliding block which is in sliding fit with the horizontal sliding groove 601, the end of the horizontal sliding groove 601 away from the horizontal arm 2 is provided with an opening for the sliding block to enter; the third through hole 6011 is located at the bottom of the horizontal sliding groove 601 and at the end of the mounting plate 6 close to the horizontal arm 2, and the third through hole 6011 is in communication with the inner cavity of the horizontal sliding groove 601. The sliding block enters the horizontal sliding groove 601 from the opening end of the horizontal sliding groove 601, and through the sliding fit of the two, the laser range finder 7 moves to the end of the horizontal sliding groove 601 close to the horizontal arm 2, and finally the laser range finder 7 emits a laser beam downward along the axis L1 of the oil storage cylinder 12.

[0051] In order to make the laser range finder 7 fixed in position, preferably, a limiting spring 11 is further included, one end of the limiting spring 11 is a mounting end 1101, the other end is a limiting end 1102; the length direction L2 of the limiting spring 11 and the length direction L3 of the horizontal sliding groove 601 form an angle; the mounting end 1101 of the limiting spring 11 is connected to the end of the mounting plate 6 close to the horizontal arm 2, and is located on one side of the horizontal sliding groove 601 in the width direction; the limiting end 1102 of the limiting spring 11 abuts against the inner side wall of the horizontal sliding groove 601 close to the notch end thereof, and is located on the other side of the horizontal sliding groove 601 in the width direction; the end of the horizontal sliding groove 601 adjacent to the horizontal arm 2 is a closed end; the limiting spring 11 is located on one side of the third through hole 6011, and forms a fixed space between the inner side wall of the horizontal sliding groove 601 and the end face of the closed end of the horizontal sliding groove 601 to fix the position of the laser range finder 7. The pointer 602 is arranged adjacent to the closed end of the horizontal sliding groove 601. Initially, the mounting end 1101 of the limiting spring 11 is connected to the end of the mounting plate 6 close to the horizontal arm 2, and is located on one side of the horizontal sliding groove 601 in the width direction; the limiting end 1102 of the limiting spring 11 abuts against the inner side wall of the horizontal sliding groove 601 close to the notch end thereof, and is located on the other side of the horizontal sliding groove 601 in the width direction. In use, the limiting end 1102 of the limiting spring 11 is pulled away to the opposite side, so that the limiting end 1102 and the mounting end 1101 of the limiting spring 11 are located on the same side of the horizontal sliding groove 601 in the width direction, that is, the limiting end 1102 of the limiting spring 11 is located on the opposite side of the initial position thereof, so as to facilitate the sliding block to enter the horizontal sliding groove 601 through the notch of the horizontal sliding groove 601. When the laser range finder 7 moves to the end of the horizontal sliding groove 601 close to the horizontal arm 2, the limiting end 1102 of the limiting spring 11 is reset, and the laser range finder 7 is located in the fixed space formed between the limiting spring 11, the inner side wall of the horizontal sliding groove 601 and the end face of the closed end of the horizontal sliding groove 601, so as to make the position of the laser range finder 7 relatively fixed.

[0052] The mounting end 1101 of the limiting spring 11 can be welded to the end of the mounting plate 6 close to the horizontal arm 2, or connected through a screw.

[0053] The dial 502 can be arranged on the upper surface of the supporting plate 5, and preferably, the supporting plate 5 is provided with an annular groove 503 with an opening facing upward, and the dial 502 is arranged in the annular groove 503.

[0054] The dial 502 and the annular groove 503 can be connected through a clamping structure, and preferably, the bottom surface of the dial 502 is adhesively fixed to the bottom surface of the annular groove 503.

[0055] The end of the horizontal arm 2 away from the horizontal rotating shaft 4 is connected with the supporting plate 5 by welding, bolting or the like. The end of the horizontal arm 2 away from the vertical rod 1 is connected with the supporting plate 5 by the interference fit of the clamping groove and the clamping part. When the clamping groove is arranged at the end of the horizontal arm 2 away from the horizontal rotating shaft 4, the clamping part is arranged on the supporting plate 5; when the clamping groove is arranged on the supporting plate 5, the clamping part is arranged at the end of the horizontal arm 2 away from the horizontal rotating shaft 4.

[0056] The upper end of the mounting sleeve 9 is connected with the bottom surface of the mounting plate 6 by welding. Preferably, the bottom surface of the mounting plate 6 is provided with an upwardly recessed first annular mounting groove coaxially arranged with the third through hole 6011; the upper end of the mounting sleeve 9 is located in the first annular mounting groove and is interference fit.

[0057] The upper end of the positioning sleeve 8 is connected with the bottom surface of the supporting plate 5 by welding. Preferably, the bottom surface of the supporting plate 5 is provided with an upwardly recessed second annular mounting groove coaxially arranged with the first through hole 501; the upper end of the positioning sleeve 8 is located in the second annular mounting groove and is interference fit.

[0058] Preferably, the mounting plate 6 is a long strip structure, and the length direction of the horizontal sliding groove 601 is parallel to the length direction of the mounting plate 6.

[0059] Preferably, the supporting plate 5 and the mounting plate 6 are both circular plates and are coaxially arranged.

[0060] The vertical rod 1, the horizontal rotating shaft 4, the horizontal arm 2, the fixing seat 3, the supporting plate 5, the mounting plate 6, the positioning sleeve 8, the mounting sleeve 9 and the bearing 10 can all be hard alloy products. Preferably, the vertical rod 1, the horizontal rotating shaft 4, the horizontal arm 2, the fixing seat 3, the supporting plate 5, the mounting plate 6, the positioning sleeve 8, the mounting sleeve 9 and the bearing 10 are all steel products.

[0061] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and do not limit the protection scope of the utility model. Equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A measuring device for a reservoir and a spring plate of a shock absorber of an automobile, characterized by, It comprises a vertical pole (1), the upper end of which is provided with a cross arm (2), and the lower end of which is provided with a fixing seat (3) for connecting with the lower end of the oil storage cylinder (12) of a shock absorber; One end of the cross arm (2) is connected with the top end of the vertical pole (1), and the other end of the cross arm (2) is provided with a support plate (5); The support plate (5) is provided with a first through hole (501) arranged vertically, and is provided with a mounting plate (6) arranged above itself, the mounting plate (6) is rotationally connected with the support plate (5) through a rotating seat located in the first through hole (501), the rotating center of the rotating seat coincides with the axis L1 of the oil storage cylinder (12), the rotating seat has a second through hole arranged vertically, the mounting plate (6) is provided with a third through hole (6011) arranged vertically, and the mounting plate (6) is provided with a laser range finder (7) arranged above itself; The upper surface of the support plate (5) is provided with a scale disc (502) for indicating the rotation angle, and the mounting plate (6) is provided with a pointer (602) used in cooperation with the scale disc (502); The support plate (5) is provided with a positioning sleeve (8) arranged vertically below itself; The first through hole (501), the second through hole, the third through hole (6011), the scale disc (502) and the positioning sleeve (8) are coaxially arranged; the central through holes of the first through hole (501), the second through hole, the third through hole (6011) and the positioning sleeve (8) jointly form a laser beam channel through which the laser beam of the laser range finder (7) passes.

2. The measuring device for the reservoir and the spring plate of an automobile shock absorber according to claim 1, wherein The first through hole (501) comprises a large hole section (5011) and a small hole section (5012) arranged adjacent to each other and connected, and the connection part of the large hole section (5011) and the small hole section (5012) has a horizontally arranged annular limiting surface (5013); The rotating seat comprises a mounting sleeve (9) and a bearing (10); the upper end of the mounting sleeve (9) is connected with the mounting plate (6) and located below the mounting plate (6); the central through hole of the mounting sleeve (9) serves as the second through hole, and the mounting sleeve (9) and the bearing (10) are coaxially arranged with the third through hole (6011); the lower end surface of the mounting sleeve (9) is in contact with the annular limiting surface (5013), and the bearing (10) is installed between the outer side surface of the mounting sleeve (9) and the inner side surface of the large hole section (5011).

3. The measuring device for the reservoir and the spring cup of an automobile shock absorber according to claim 1, wherein The outer circumferential surface of the positioning sleeve (8) is provided with an annular positioning boss (801) arranged along the circumferential direction thereof, the annular positioning boss (801) is provided with a plurality of annular positioning bosses (801) arranged along the axial direction of the positioning sleeve (8) in sequence, and the distance from the outer side surface of the annular positioning boss (801) to the axis of the positioning sleeve (8) decreases from top to bottom.

4. The measuring device for the reservoir and the spring cup of an automobile shock absorber according to claim 1, wherein The mounting plate (6) is provided with a horizontal sliding groove (601) with an opening facing upward, one end of the horizontal sliding groove (601) is adjacent to one end of the cross arm (2), and the other end extends away from the cross arm (2). The housing of the laser range finder (7) is provided with a sliding block in sliding fit with the horizontal sliding slot (601), and the horizontal sliding slot (601) is provided with a notch at an end away from the horizontal arm (2) for the sliding block to enter. The third through hole (6011) is located at the bottom of the horizontal sliding slot (601) and at an end of the mounting plate (6) close to the horizontal arm (2), and the third through hole (6011) is in communication with the inner cavity of the horizontal sliding slot (601).

5. The measuring device for the reservoir and the spring plate of an automobile shock absorber according to claim 4, wherein The limiting elastic sheet (11) has a mounting end (1101) at one end and a limiting end (1102) at the other end, and the length direction L2 of the limiting elastic sheet (11) and the length direction L3 of the horizontal sliding slot (601) have an included angle therebetween. The mounting end (1101) of the limiting elastic sheet (11) is connected to an end of the mounting plate (6) close to the horizontal arm (2) and is located at one side in the width direction of the horizontal sliding slot (601), and the limiting end (1102) of the limiting elastic sheet (11) abuts against the inner side wall of the horizontal sliding slot (601) close to the notch end thereof and is located at the other side in the width direction of the horizontal sliding slot (601). One end of the horizontal sliding slot (601) adjacent to the horizontal arm (2) is a closed end, and the limiting elastic sheet (11) is located at one side of the third through hole (6011) and forms a fixed space between the inner side wall of the horizontal sliding slot (601) and the end face of the closed end of the horizontal sliding slot (601) to fix the position of the laser range finder (7).

6. The measuring device for the reservoir and the spring cup of an automobile shock absorber according to claim 1, wherein The support plate (5) is provided with an annular groove (503) with an opening facing upward, and the scale disc (502) is arranged in the annular groove (503).

7. The measuring device for the reservoir and the spring cup of an automobile shock absorber according to claim 1, wherein One end of the horizontal arm (2) away from the vertical rod (1) is connected to the support plate (5) through an interference fit of a clamping groove and a clamping portion.

8. The measuring device for the reservoir and the spring cup of an automobile shock absorber according to claim 2, wherein The bottom surface of the mounting plate (6) is provided with a first annular mounting groove recessed upward, and the first annular mounting groove is coaxially arranged with the third through hole (6011); and the upper end of the mounting sleeve (9) is located in the first annular mounting groove in interference fit.

9. The measuring device for the reservoir and the spring cup of an automobile shock absorber according to claim 1, wherein The bottom surface of the support plate (5) is provided with a second annular mounting groove recessed upward, and the second annular mounting groove is coaxially arranged with the first through hole (501); and the upper end of the positioning sleeve (8) is located in the second annular mounting groove in interference fit.

10. The measuring device for the reservoir and the spring plate of an automobile shock absorber according to claim 4 or 5, wherein The mounting plate (6) is in a long strip structure, and the length direction of the horizontal sliding slot (601) is parallel to the length direction of the mounting plate (6).