CN217132020U

CN217132020U - Utensil is examined in adjustment spacer special use

Info

Publication number: CN217132020U
Application number: CN202220703003.1U
Authority: CN
Inventors: 冯宇; 罗踔涛
Original assignee: Wuhan Hengchuangda Auto Parts Co ltd
Current assignee: Wuhan Hengchuangda Auto Parts Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-08-05
Anticipated expiration: 2032-03-29

Abstract

The utility model provides a special checking fixture for adjusting spacer bush, which comprises a base, wherein a chute extending in the vertical direction is arranged on the end surface of the base far away from the ground, and first abutting parts are symmetrically arranged at the two ends of the chute along the extending direction of the horizontal length of the base; an opening is formed in one end, extending along the horizontal width direction of the base, of the sliding chute, a second abutting portion is arranged in one side direction, away from the opening, of the sliding chute, a third abutting portion is arranged at one end, away from the ground, of the second abutting portion, and the third abutting portion is arranged away from the second abutting portion along the vertical extending direction of the sliding chute; the adjusting spacer bush to be detected is vertically placed in the sliding groove, and two ends of the adjusting spacer bush to be detected in the horizontal length extending direction are abutted against the sliding groove or the first abutting part; the side surface of one end of the adjustment spacer sleeve to be detected in the horizontal length extension direction is abutted against the second abutting part or the third abutting part.

Description

Utensil is examined in adjustment spacer special use

Technical Field

The utility model relates to an automobile parts field especially relates to an utensil is examined in adjustment spacer sleeve special use.

Background

Many automobiles are equipped with a luggage carrier on the roof for placing large luggage on the roof. However, the roof cover of the vehicle roof is thin and cannot bear large force, and a support plate with high strength is usually arranged in the vehicle roof to support the luggage carrier. The cavity structure is formed between the supporting plate and the top cover, the connecting piece penetrates through the roof and is respectively and fixedly connected with the luggage carrier and the supporting plate, during actual use, the reliable and convenient adjustment of the gap between the supporting plate and the luggage carrier is needed to be ensured, and the roof is prevented from being directly contacted with goods and deformed.

After the adjusting spacer sleeve is manufactured, the size and shape tolerance of the adjusting spacer sleeve need to be detected, and the adjusting spacer sleeve can be normally used after the detection. Therefore, it is necessary to provide a special gauge for adjusting the spacer bush to detect whether the shape and tolerance size of the gauge can meet the actual use requirements.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a convenient to use, detect reliable adjustment spacer special use and examine utensil.

The technical scheme of the utility model is realized like this: the utility model provides an utensil is examined in adjustment spacer special use, support portion (3) and third support portion (4) including base (1), two first support portion (2), second, wherein:

a sliding groove (100) extending in the vertical direction is arranged on the end face, far away from the ground, of the base (1); one end of the sliding chute (100) extending along the horizontal width direction of the base (1) is provided with an opening;

the two first butting parts (2) are symmetrically arranged at two ends of the sliding groove (100) along the extension direction of the horizontal length of the base (1);

the second butting part (3) is arranged in the direction of one side of the sliding chute (100) far away from the opening, and the second butting part (3) is positioned between the two first butting parts (2);

the third abutting part (4) is arranged at one end, far away from the ground, of the second abutting part (3), and the third abutting part (4) is arranged far away from the second abutting part (3) along the vertical extending direction of the sliding groove (100);

the adjusting spacer bush (5) to be detected is vertically placed in the sliding chute (100), and two ends of the adjusting spacer bush (5) to be detected in the horizontal length extending direction are abutted against the sliding chute (100) or the first abutting part (2); the side surface of one end of the adjustment spacer sleeve (5) to be detected in the horizontal width extension direction is abutted against the second abutting part (3) or the third abutting part (4).

On the basis of the above technical solution, preferably, the first abutting portion (2) has a first end face (21) and a second end face (22) which are adjacently arranged; the first end face (21) extends along the horizontal width direction of the base (1), the size of the first end face (21) is smaller than that of the base (1) in the horizontal width direction, the second end face (22) is orthogonal to the first end face (21), and the extending length of the second end face (22) in the vertical direction is smaller than the depth of the sliding groove (100) in the vertical direction.

Preferably, the second abutting portion (3) is located between the second end faces (22) opposite to the two first abutting portions (2), and the height of the second abutting portion (3) in the vertical direction is smaller than the depth of the sliding groove (100) in the vertical direction.

Preferably, the second abutting portion (3) comprises a first body (30) and two first protruding portions (31); the first body (30) is arranged between the adjacent end surfaces of the first butting parts (2); two ends of the horizontal extending direction of the side surface of the first body (30) are respectively provided with an arc-shaped first protruding part (31), one end of the first protruding part (31) is fixedly connected with the side surface of the first body (30), and the other end of the first protruding part (31) horizontally extends towards the opening direction of the sliding chute (100).

Further preferably, the third abutting portion (4) comprises a second body (40) and a plurality of second protrusions (41); the second body (40) is arranged on the end face, far away from the ground, of the first body (30); the side surface of the second body (40) coincides with the side surface of the first body (30); a plurality of second protruding parts (41) are arranged on the side surface of the second body (40), one ends of the second protruding parts (41) are fixedly connected with the second body (40), and the other ends of the second protruding parts (41) horizontally extend towards the opening direction of the sliding chute (100); and the horizontal extension length of each second protrusion part (41) is not identical.

Further preferably, the adjusting spacer (5) to be detected comprises a mounting bracket (51), a first cylinder (52) and a second cylinder (53); the first cylinder (52) is hollow, one end of the first cylinder (52) in the axial extension direction is fixedly connected with the mounting bracket (51), the other end of the first cylinder (52) in the axial extension direction is provided with a second cylinder (53), the first cylinder (52) is movably connected with the second cylinder (53), and the second cylinder (53) moves along the axial extension direction of the first cylinder (52); two ends of the mounting bracket (51) in the horizontal length extension direction are respectively abutted against the first abutting part (2); one side end face of the mounting bracket (51) in the horizontal width extension direction is abutted against the second abutting part (3) or the third abutting part (4); the third abutting part (4) is also abutted with the outer surface of the first cylinder (52).

Still further preferably, the mounting bracket (51) comprises a third body (510), a first guide portion (511), a bending portion (512) and a second guide portion (513), the third body (510) is fixedly arranged on the end face of the first cylinder (52), the first guide portion (511) is symmetrically arranged at two ends of the horizontal length extending direction of the third body (510), the first guide portion (511) extends along the direction far away from the third body (510), the bending portion (512) is further arranged on the first guide portion (511), and the bending portion (512) extends outwards horizontally towards the direction far away from the first guide portion (511); a plurality of second guide parts (513) are symmetrically arranged at two ends of the third body (510) in the horizontal width extending direction, and the second guide parts (513) are vertically arranged; the first guide part (511) abuts against the first end face (21) of the first abutting part (2), and the bent part (512) abuts against the second end face (22) of the first abutting part (2); the second guide part (513) is abutted against the surface of the second protrusion part (41) or the side surface of the second body (40); the side surface of the second abutting part (3) is also abutted against the side surface of the third body (510).

Preferably, the mounting bracket (51) is further provided with a through clamping groove (514); two sliding blocks (515) are embedded into the clamping groove (514), the two sliding blocks (515) are arranged at two ends of the clamping groove (514) in the horizontal length extending direction, and the sliding blocks (515) are connected with the surface of the mounting bracket (51) or the clamping groove (514) in a sliding mode; an elastic reset component (516) is arranged between the adjacent surfaces of the two sliding blocks (515), and two ends of the elastic reset component (516) are respectively fixedly connected with the two sliding blocks (515); the third abutting part (4) is provided with a horizontally extending clamping plate (42), and the end faces of the two clamping grooves (514) far away from the elastic reset component (516) abut against different end faces of the clamping plate (42).

Further preferably, the elastic return component (516) is a spring.

Preferably, the first cylinder (52) is in threaded connection with the second cylinder (53).

The utility model provides a pair of utensil is examined in adjustment spacer special use for prior art, has following beneficial effect:

(1) the special checking tool for adjusting the spacer bush can perform approximation type checking on the outline shape of one side of the adjusting spacer bush, each abutting part can abut against different end faces of different shapes of the adjusting spacer bush, and whether the adjusting spacer bush meets the requirements of the used shape and position size is judged through the gap between the abutting parts or whether the abutting parts can slide to the end position of the sliding chute;

(2) each abutting part is abducted and filled according to the shape of the adjusting spacer bush, so that the contact area between the abutting parts and the surface of the adjusting spacer bush can be increased, and the size of the abutting parts can be further detected;

(3) the utility model discloses can not only detect the size of installing support, also can detect whether the holistic size of the adjustment spacer after the equipment is accomplished accords with operation requirement.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of a gauge dedicated for adjusting a spacer according to the present invention;

FIG. 2 is a front view of the gauge dedicated for adjusting the spacer of the present invention;

FIG. 3 is a top view of the gauge dedicated for adjusting the spacer of the present invention;

fig. 4 is a perspective view of an adjustment spacer to be detected of the inspection tool for adjustment spacer according to the present invention;

fig. 5 is a top view of the adjustment spacer to be detected of the inspection tool for adjustment spacer according to the present invention;

FIG. 6 is a sectional elevation view A-A of FIG. 5;

FIG. 7 is a view of the cross-section B-B of FIG. 5 in rotated form;

fig. 8 is a top view of a combination state of the inspection tool special for the adjustment spacer and the adjustment spacer to be detected according to the present invention;

FIG. 9 is a cross-sectional elevation view C-C of FIG. 8;

fig. 10 is a cross-sectional rotated view taken along line D-D of fig. 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a special checking fixture for adjusting spacer bush, which comprises a base 1, two first abutting parts 2, a second abutting part 3 and a third abutting part 4, wherein a chute 100 extending in the vertical direction is arranged on the end surface of the base 1 far away from the ground, and the first abutting parts 2 are symmetrically arranged at the two ends of the chute 100 along the extending direction of the horizontal length of the base 1; an opening is formed in one end, extending along the horizontal width direction of the base 1, of the sliding groove 100, a second abutting portion 3 is arranged in one side direction, away from the opening, of the sliding groove 100, a third abutting portion 4 is arranged at one end, away from the ground, of the second abutting portion 3, and the third abutting portion 4 is arranged away from the second abutting portion 3 along the vertical extending direction of the sliding groove 100; the adjustment spacer 5 to be detected is vertically placed in the sliding chute 100, and two ends of the adjustment spacer 5 to be detected in the horizontal length extension direction abut against the sliding chute 100 or the first abutting part 2; the side surface of one end of the adjustment spacer 5 to be detected in the horizontal width extending direction abuts against the second abutting portion 3 or the third abutting portion 4. As can be seen, the chute 100 resembles a rectangular parallelepiped cavity structure having flush end faces. The two first abutting parts 2 are of cuboid structures with notches, the two sides of the opening part of the sliding groove 100 are symmetrical, the shape of the notch on the first abutting parts 2 is also cuboid, the notch is communicated with the sliding groove 100, and the surface of the notch part of the cuboid abuts against part of end faces of the adjusting spacer 5 to be detected. Similarly, the side surfaces of the second abutting portion 3 and the third abutting portion 4 abut against end surfaces of the adjustment spacer 5 to be detected at different positions respectively. The adjusting spacer 5 to be detected is placed on the sliding groove 100 and the first abutting portion 2, and a gap between the edge or the end face of the adjusting spacer 5 to be detected and the second abutting portion 3 or the third abutting portion 4 is observed, so that whether the shape and position size of the adjusting spacer 5 to be detected meets the use requirement is judged.

Specifically, as shown in fig. 1-3 in combination with fig. 4 and 9, in order to match the shape of the end of the adjustment spacer 5 to be detected in the length extension direction, the rectangular parallelepiped notch of the first abutting portion 2 has a first end face 21 and a second end face 22 which are adjacently arranged; the first end face 21 extends along the horizontal width direction of the base 1, the size of the first end face 21 is smaller than that of the base 1, the second end face 22 is orthogonal to the first end face 21, and the extension length of the second end face 22 in the vertical direction is smaller than the depth of the sliding groove 100 in the vertical direction. A step shape is formed between the gap part of the first abutting part 2 and the bottom surface of the sliding chute 100, the shape is matched with the bending shape of the end part of the adjusting spacer 5 to be detected, and the step shape is used for limiting and detecting the attaching condition of the two ends in the direction and the two first abutting parts 2, if the end part in the length extending direction of the adjusting spacer 5 to be detected cannot be attached to the position, or the adjusting spacer 5 to be detected can be placed at the gap part of the first abutting part 2, but the gap between the adjusting spacer 5 to be detected and the bottom surface of the sliding chute 100 is larger, the shape and position size are unqualified, and the subsequent shape and position size detection is not needed.

As shown in fig. 2 to 5, the second abutting portion 3 or the third abutting portion 4 is used for detecting the shape and the size of each end face of the adjustment spacer 5 to be detected in the width direction; the second abutting portion 3 is located between the second end surfaces 22 of the two first abutting portions 2, and the height of the second abutting portion 3 in the vertical direction is smaller than the depth of the sliding groove 100 in the vertical direction.

As a further improvement of this solution, the second abutting portion 3 includes a first body 30 and two first protruding portions 31; the first body 30 is arranged between the adjacent end surfaces of the first butting part 2; the two ends of the horizontal extending direction of the side surface of the first body 30 are respectively provided with an arc-shaped first protrusion 31, one end of the first protrusion 31 is fixedly connected with the side surface of the first body 30, and the other end of the first protrusion 31 extends horizontally towards the opening direction of the sliding chute 100. The upper side surface of the adjustment spacer 5 to be detected abuts against the first body 30, and the edge positions of the side surface are symmetrically provided with arc-shaped notches, the arc-shaped notches are matched with the arc-shaped first protruding parts 31 in shape and height, so that whether the shape and position of the arc-shaped notches are reasonable or not can be further judged according to the fit degree of the arc-shaped notches and the arc-shaped first protruding parts 31.

As also shown in fig. 2 to 5, the side surface of the third abutting portion 4 coincides with, i.e., is coplanar with, the side surface of the second abutting portion 3. Specifically, the third abutting portion 4 includes a second body 40 and a plurality of second protruding portions 41; the second body 40 is arranged on the end surface of the first body 30 far away from the ground; the side surface of the second body 40 coincides with the side surface of the first body 30; a plurality of second protruding parts 41 are arranged on the side surface of the second body 40, one end of each second protruding part 41 is fixedly connected with the second body 40, and the other end of each second protruding part 41 horizontally extends towards the opening direction of the sliding chute 100; and the lengths of the horizontal extensions of the second protrusions 41 are not all the same. As can be seen from the figure, the shapes of the end surfaces of the adjustment spacer 5 to be detected in the width direction are different at different heights, so that the shapes of the end surfaces of the second protrusion 41 abutting against the adjustment spacer 5 to be detected at different heights are also not completely the same. The second projecting portion 41 as shown has a groove-like end surface or an arc-like end surface, which has a stopper function and a large contact area, and can detect the shape and position of a specific portion of the end portion of the adjustment spacer 5 to be detected. The second projections 41 do not project to exactly the same extent horizontally in order to better fit the different positions of the surface of the adjustment spacer 5 to be detected. The number of the second protrusions 41 is 3, the end surface of the second protrusion 41 at the middle position is circular arc, and two other second protrusions 41 with groove-shaped end surfaces are symmetrically arranged at two sides of the second protrusion 41.

As shown in fig. 4-7, a specific configuration of the adjustment spacer 5 to be tested is shown. The adjusting spacer 5 to be detected comprises a mounting bracket 51, a first cylinder 52 and a second cylinder 53; the first cylinder 52 is hollow, the mounting bracket 51 is arranged at one end of the first cylinder 52 in the axial extending direction, the mounting bracket 51 is fixedly connected with the first cylinder 52, the second cylinder 53 is arranged at the other end of the first cylinder 52 in the axial extending direction, the first cylinder 52 is movably connected with the second cylinder 53, and the second cylinder 53 moves along the axial extending direction of the first cylinder 52; two ends of the mounting bracket 51 in the horizontal length extension direction are respectively abutted against the first abutting part 2; one side end face of the mounting bracket 51 in the horizontal width extension direction abuts against the second abutting part 3 or the third abutting part 4; the third abutting portion 4 also abuts against the outer surface of the first cylinder 52. As can be seen from the figure, the two ends of the mounting bracket 51 in the horizontal length extension direction abut against the first end face 21 or the second end face 22 of the rectangular parallelepiped notched portion of the first abutting portion 2, and one end of the mounting bracket 51 in the horizontal width extension direction abuts against part of the second protruding portion 41 of the second abutting portion 3, the first protruding portion 31 or the third abutting portion 4; the arc-shaped end surface of the first cylinder 52 abuts against the second protrusion 41 having the arc-shaped end surface of the third abutting portion 4, that is, the shape and position of the mounting bracket 51 or the first cylinder 52 in the lateral direction are detected. In this embodiment, the first cylinder 52 and the second cylinder 53 may be connected by a screw.

Specifically, the mounting bracket 51 includes a third body 510, a first guiding portion 511, a bending portion 512, and a second guiding portion 513, the third body 510 is fixedly disposed on the end surface of the first barrel 52, the first guiding portion 511 is symmetrically disposed at two ends of the third body 510 in the horizontal length extending direction, the first guiding portion 511 extends along the direction far away from the third body 510, the first guiding portion 511 is further provided with the bending portion 512, and the bending portion 512 extends horizontally and outwardly in the direction far away from the first guiding portion 511; a plurality of second guide parts 513 are symmetrically arranged at two ends of the third body 510 in the horizontal width extending direction, and the second guide parts 513 are vertically arranged; the first guiding portion 511 abuts against the first end face 21 of the first abutting portion 2, and the bending portion 512 abuts against the second end face 22 of the first abutting portion 2; the second guide portion 513 abuts against a surface of the second protrusion portion 41 or a side surface of the second body 40; the side surface of the second abutting portion 3 also abuts against the side surface of the third body 510. As can be seen from fig. 4 and 6, the first guide portion 511 is further bent and abuts against the first cylindrical surface. The first guide portion 511 abuts the second end face 22. The bending portion 512 forms a horizontal flange to abut against the first end surface 21. The second guide portion 513 is configured to abut against the second protrusion 41 of the non-arc end surface. The third body 510 is a flat plate disposed on the end face of the first cylinder 52, and four circular recesses are correspondingly disposed at the vertexes of the third body 510, and the circular recesses are matched with the first protrusions 31 in shape and height. The non-concave side surface of the third body 510 and the side surface of the first body 30 are abutted against each other.

In order to detect whether the adjustment spacer 5 to be detected is stable during installation, the scheme can also carry out position detection on the movable part on the installation bracket 51; the mounting bracket 51 is also provided with a through clamping groove 514; the locking groove 514 vertically penetrates through the third body 510 and the first guide portion 511; two sliding blocks 515 are embedded in the clamping groove 514, the two sliding blocks 515 are arranged at two ends of the horizontal length extending direction of the clamping groove 514, and the sliding blocks 515 are connected with the mounting bracket 51 or the surface of the clamping groove 514 in a sliding manner; an elastic reset component 516 is arranged between the adjacent surfaces of the two sliding blocks 515, and two ends of the elastic reset component 516 are respectively fixedly connected with the two sliding blocks 515; the third abutting part 4 is provided with a horizontally extending clamping plate 42, and end surfaces of the two clamping grooves 514 far away from the elastic reset component 516 abut against different end surfaces of the clamping plate 42. The slider 515 is used to abut against the end surface of the roof of the vehicle, and to stably adjust the position of the spacer. The shape and thickness of the roof are simulated by the clamping plate 42, so that the reliability of the adjustment spacer 5 to be detected after installation is judged, and whether the sliding block 515 is reversely installed or not is judged.

The elastic reset assembly 516 in this embodiment may be a spring.

The utility model discloses during the use: as shown in fig. 8-10, the mounting bracket 51 to be detected or the adjustment spacer 5 to be detected is inverted, so that the first guide portions 511 and the bending portions 512 at the two ends of the mounting bracket 51 in the length extension direction respectively abut against the second end surface and the first end surface; judging whether the bottom end face of the mounting bracket 51 abuts against the sliding groove, if so, further pushing the adjusting spacer 5 to be detected to the second abutting part 3 or the third abutting part 4 along the sliding groove, and continuously observing whether the arc-shaped notch at the edge of the mounting bracket 5 can abut against the first protruding part 31; further observing the gap between each second protrusion 41 and the second guide 513 or the first cylinder 52, so as to determine the overall shape of the mounting bracket 51 alone or the assembled adjustment spacer 5 to be detected; for the adjustment spacer 5 to be detected, the gap between the end face of the slider 515 and the end face of the clamping plate 42 can be further observed, whether the slider is reversely mounted or not is checked, after the items are detected, the mounting bracket 51 to be detected or the adjustment spacer 5 to be detected is rotated 180 degrees relative to the plumb line, the detection steps are repeated, and the shape and the position of the single mounting bracket 51 or the adjustment spacer 5 to be detected are detected.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an utensil is examined in adjustment spacer bush special use which characterized in that: including base (1), two first support portion (2), second support portion (3) and third support portion (4), wherein:

2. The inspection tool special for adjusting the spacer bush as claimed in claim 1, wherein: the first abutting part (2) is provided with a first end surface (21) and a second end surface (22) which are arranged adjacently; the first end face (21) extends along the horizontal width direction of the base (1), the size of the first end face (21) is smaller than that of the base (1) in the horizontal width direction, the second end face (22) is orthogonal to the first end face (21), and the extending length of the second end face (22) in the vertical direction is smaller than the depth of the sliding groove (100) in the vertical direction.

3. The inspection tool special for adjusting the spacer bush as claimed in claim 2, wherein: the second abutting parts (3) are positioned between the second end faces (22) opposite to the two first abutting parts (2), and the height of the second abutting parts (3) in the vertical direction is smaller than the depth of the sliding groove (100) in the vertical direction.

4. The inspection tool special for adjusting the spacer bush as claimed in claim 3, wherein: the second butting part (3) comprises a first body (30) and two first protruding parts (31); the first body (30) is arranged between the adjacent end surfaces of the first butting parts (2); two ends of the horizontal extending direction of the side surface of the first body (30) are respectively provided with an arc-shaped first protruding part (31), one end of the first protruding part (31) is fixedly connected with the side surface of the first body (30), and the other end of the first protruding part (31) horizontally extends towards the opening direction of the sliding chute (100).

5. The inspection tool special for adjusting the spacer bush as claimed in claim 4, wherein: the third butting part (4) comprises a second body (40) and a plurality of second protruding parts (41); the second body (40) is arranged on the end face, far away from the ground, of the first body (30); the side surface of the second body (40) coincides with the side surface of the first body (30); a plurality of second protruding parts (41) are arranged on the side surface of the second body (40), one ends of the second protruding parts (41) are fixedly connected with the second body (40), and the other ends of the second protruding parts (41) horizontally extend towards the opening direction of the sliding chute (100); and the horizontal extension length of each second protrusion part (41) is not identical.

6. The inspection tool special for adjusting the spacer bush as claimed in claim 5, wherein: the adjusting spacer bush (5) to be detected comprises a mounting bracket (51), a first cylinder (52) and a second cylinder (53); the first cylinder (52) is hollow, one end of the first cylinder (52) in the axial extension direction is fixedly connected with the mounting bracket (51), the other end of the first cylinder (52) in the axial extension direction is provided with a second cylinder (53), the first cylinder (52) is movably connected with the second cylinder (53), and the second cylinder (53) moves along the axial extension direction of the first cylinder (52); two ends of the mounting bracket (51) in the horizontal length extension direction are respectively abutted against the first abutting part (2); one side end face of the mounting bracket (51) in the horizontal width extension direction is abutted against the second abutting part (3) or the third abutting part (4); the third butting part (4) is also butted with the outer surface of the first cylinder (52).

7. The inspection tool special for adjusting the spacer bush as claimed in claim 6, wherein: the mounting bracket (51) comprises a third body (510), a first guide part (511), a bent part (512) and a plurality of second guide parts (513), the third body (510) is fixedly arranged on the end face of the first cylinder (52), the first guide parts (511) are symmetrically arranged at two ends of the horizontal length extension direction of the third body (510), the first guide part (511) extends along the direction far away from the third body (510), the bent part (512) is further arranged on the first guide part (511), and the bent part (512) extends outwards horizontally towards the direction far away from the first guide part (511); a plurality of second guide parts (513) are symmetrically arranged at two ends of the third body (510) in the horizontal width extending direction, and the second guide parts (513) are vertically arranged; the first guide part (511) abuts against the first end face (21) of the first abutting part (2), and the bent part (512) abuts against the second end face (22) of the first abutting part (2); the second guide part (513) is abutted against the surface of the second protrusion part (41) or the side surface of the second body (40); the side surface of the second abutting part (3) is also abutted against the side surface of the third body (510).

8. The inspection tool special for adjusting the spacer bush as claimed in claim 6, wherein: the mounting bracket (51) is also provided with a through clamping groove (514); two sliding blocks (515) are embedded in the clamping groove (514), the two sliding blocks (515) are arranged at two ends of the clamping groove (514) in the horizontal length extending direction, and the sliding blocks (515) are connected with the surface of the mounting bracket (51) or the clamping groove (514) in a sliding mode; an elastic reset component (516) is arranged between the adjacent surfaces of the two sliding blocks (515), and two ends of the elastic reset component (516) are respectively fixedly connected with the two sliding blocks (515); the third abutting part (4) is provided with a horizontally extending clamping plate (42), and the end faces of the two clamping grooves (514) far away from the elastic reset component (516) abut against different end faces of the clamping plate (42).

9. The inspection tool special for adjusting the spacer bush as claimed in claim 8, wherein: the elastic reset component (516) is a spring.

10. The special checking fixture for adjusting the spacer bush as claimed in claim 7, wherein: the first cylinder (52) is in threaded connection with the second cylinder (53).