CN218349801U

CN218349801U - Bicycle front fork test equipment

Info

Publication number: CN218349801U
Application number: CN202222695277.3U
Authority: CN
Inventors: 武彬; 颜兵; 黄启洲; 黄小晖
Original assignee: Dongguan Minko Carbon Fiber Science & Technology Co ltd
Current assignee: Dongguan Minko Carbon Fiber Science & Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-01-20
Anticipated expiration: 2032-10-12

Abstract

The utility model belongs to the technical field of the technique of bicycle strength test and specifically relates to a bicycle front fork test equipment is related to, it includes: the base is provided with a plurality of positioning holes in an arrangement mode along the length direction of the base; the fixing plate is provided with a strip-shaped positioning hole along the length direction of the base, a first bolt and a first nut are arranged on the fixing plate, the first nut is in threaded fit with the first bolt and abuts against the upper part of the fixing plate, and the fixing plate is provided with a fixing component for fixing a front fork to be detected; the guide post is connected with a heavy block used for making falling body movement in a sliding manner, the guide post is provided with a lifting plate, the lifting plate penetrates through the guide post along the height direction of the guide post and is connected with the guide post in a sliding manner, and an impact assembly used for enabling the heavy block to make falling body movement or not is arranged between the lifting plate and the heavy block; the support, support fixed connection is in the base top, and the support is equipped with lifting unit. The application has the effect of reducing the use cost of the test equipment.

Description

Bicycle front fork test equipment

Technical Field

The utility model belongs to the technical field of the technique of bicycle strength test and specifically relates to a bicycle front fork test equipment is related to.

Background

The front fork part is positioned at the front part in the bicycle structure, the upper end of the front fork part is connected with the handlebar part, the frame part is matched with the front pipe, the lower end of the frame part is matched with the front shaft part of the front wheel to form a guide system of the bicycle, the handlebar and the front fork are rotated to change the direction of the front wheel and play a role in guiding the bicycle, and the stress condition of the front fork part is the same as the property of the cantilever beam, so the front fork part has enough strength, and the quality detection of the front fork part is very important;

bicycle front fork test equipment is the equipment that is often used for front fork quality to detect, the on-line screen storage device comprises a base, fixed establishment and impact assembly etc, when detecting, it is fixed in fixed establishment earlier to wait to detect the front fork, then treat through impact assembly and detect the front fork and strike, the impaired condition of inspection front fork judges the intensity of front fork at last, and the most adoption of bicycle front fork test equipment on the existing market adds guide rail part on the base, slide fixed establishment the receiving impact position of adjusting the front fork of the mode of guide rail, this kind of mode is under the condition of long-term use equipment, the guide rail receives the damage easily, thereby influence the use of equipment, and frequently change guide rail part, also lead to test equipment's use cost to increase.

SUMMERY OF THE UTILITY MODEL

In order to reduce the use cost of test equipment, this application provides a bicycle front fork test equipment.

The above object of the present invention is achieved by the following technical solutions:

the base is provided with a plurality of positioning holes in an arrangement mode along the length direction of the base;

the fixing plate is provided with a strip-shaped positioning hole along the length direction of the base, the length of the strip-shaped positioning hole is not less than the sum of the center distance between two positioning holes and the diameter of one positioning hole, the width of the strip-shaped positioning hole is not less than the aperture of the positioning hole, the fixing plate is provided with a first bolt and a first nut, the first bolt penetrates through the strip-shaped positioning hole to be in threaded fit with the positioning hole, the first nut is in threaded fit with the first bolt and abuts against the upper side of the fixing plate, and the fixing plate is provided with a fixing component for fixing a front fork to be detected;

one end of the guide post is fixedly connected to the top of the base, the guide post is connected with a weight block used for falling motion in a sliding mode along the height direction of the guide post, when the front fork to be detected is located above the fixing plate, the weight block is located right above the front fork to be detected, the guide post is provided with a lifting plate, the lifting plate penetrates through the guide post along the height direction of the guide post and is connected to the guide post in a sliding mode, the lifting plate is located right above the weight block, and an impact assembly used for enabling the weight block to do falling motion or not is arranged between the lifting plate and the weight block;

the support is fixedly connected to the top of the base, and the support is provided with a lifting assembly used for adjusting the distance between the weight block and the height of the front fork to be detected.

By adopting the technical scheme, the front fork to be detected is fixed on the fixing plate through the fixing component, then the fixing plate is moved to a corresponding distance above the positioning hole of the base along the length direction of the base according to the requirement of the impacted position of the front fork to be detected, the strip-shaped positioning hole is positioned right above the positioning hole, the appointed impacted position of the front fork to be detected is positioned right below the weight block, at least one positioning hole can be completely communicated with the strip-shaped positioning hole in the process of moving above the positioning hole of the base along the length direction of the base due to the fact that the length of the strip-shaped positioning hole is not smaller than the sum of the center distance between the two positioning holes and the diameter of one positioning hole, and finally the first nut is tightly abutted against the fixing plate through the threaded fit of the first bolt and the first nut, so that the displacement of the fixing plate is limited, the positioning of the front fork to be detected is realized.

The present application may be further configured in a preferred example to: the base top is followed the length direction fixedly connected with first scale of base.

By adopting the technical scheme, the impact position of the front fork to be detected can be conveniently and accurately adjusted by an operator.

The present application may be further configured in a preferred example to: the fixing assembly comprises a connecting plate, the connecting plate is detachably and fixedly connected to the fixing plate in a threaded connection mode, mounting plates are fixedly connected to two opposite sides of the connecting plate, mounting holes are formed in the two mounting plates, the size of each mounting hole is matched with the size of the front fork to be detected, a second bolt is arranged on one side of each mounting plate, the second bolt penetrates through the mounting plates to the mounting holes in a threaded mode, and the second bolt is used for abutting against the front fork to be detected or not.

Through adopting above-mentioned technical scheme, will wait to detect the front fork and wear to locate between two mounting panels via two mounting holes, through rotatory second bolt, make the second bolt support tightly in waiting to detect the front fork, can restrict and wait to detect the rotation and the displacement of front fork to the realization is treated the fixed of detecting the front fork.

The application may be further configured in a preferred example to: the impact assembly comprises an electromagnetic block and an iron block, the electromagnetic block can be detachably and fixedly connected with the bottom of the lifting plate, the iron block can be detachably and fixedly connected with the top of the heavy block, and when the electromagnetic block is electrified, the electromagnetic block is in magnetic attraction fit with the iron block.

Through adopting above-mentioned technical scheme, earlier through the circular telegram to the electromagnetism piece, make the electromagnetism piece have magnetism, then drive the elevator board through lifting unit drive elevator board and move the electromagnetism piece and be close to the cooperation until electromagnetism piece and iron piece magnetism are inhaled to the iron plate, rethread lifting unit adjusts the lifter plate to appointed height, makes the electromagnetism piece lose magnetism through the outage at last, realizes that the iron plate drives the pouring weight and does the motion of falling body, and simple structure is swift.

The present application may be further configured in a preferred example to: the number of the impact assemblies is multiple.

Through adopting above-mentioned technical scheme, set up the multiunit and strike the subassembly, set up a plurality of electromagnetism pieces and a plurality of iron plate promptly, when the electromagnetism piece circular telegram, can make the magnetism between electromagnetism piece and the iron plate be connected more stably to can improve the maximum weight of pouring weight.

The application may be further configured in a preferred example to: the pouring weight is characterized in that a gasket is arranged at the bottom of the pouring weight, a plurality of single-head studs are fixedly connected to the top of the gasket, the single-head studs run through the pouring weight, a second nut is arranged at one end of each single-head stud, and the second nut is in threaded fit with the single-head studs and abuts against the top of the pouring weight.

Through adopting above-mentioned technical scheme, set up the gasket bottom the pouring weight, can play the guard action when the pouring weight strikes and waits to detect the front fork, improve the life of pouring weight to fixed connection in the bottom of pouring weight can be dismantled through single-end double-screw bolt and second nut screw-thread fit's mode to the gasket, and the gasket of being convenient for operating personnel in time changing the damage.

The present application may be further configured in a preferred example to: lifting unit includes fixed pulley, movable pulley, rolling axle and is used for driving rolling axle pivoted motor, the fixed pulley rotate connect in the support top, the movable pulley rotate connect in the lifter plate top, the fixed pulley with the pulley structure is constituteed to the movable pulley, the equal fixed mounting of rolling axle and motor in the support top, the coaxial fixed connection of motor output shaft in the rolling axle, the rolling of rolling off-axial surface has the rope, rope one end walk around and the butt in the fixed pulley surface with the movable pulley surface.

Through adopting above-mentioned technical scheme, when the cooperation is inhaled with the iron plate magnetism to the electromagnetism piece, rotate through motor drive rolling axle, make rolling axle surface open up to the rope and put or the rolling to make movable pulley drive the lifter plate and be close to or keep away from the base, and then realize adjusting the pouring weight and leave the height of base.

The application may be further configured in a preferred example to: the base is followed the direction of height fixedly connected with second scale of guide post, sliding connection has infrared receiver on the scale, lifter plate one side fixedly connected with infrared emitter infrared receiver with when infrared emitter level was aligned, infrared receiver to the motor sends the messenger the signal that the motor stopped the operation.

Through adopting above-mentioned technical scheme, according to appointed test height, slide infrared receiver to the second scale and correspond the position, then rotate through motor drive rolling axle, make movable pulley drive lifter plate keep away from the base and remove until infrared receiver aligns with infrared emitter level, infrared receiver sends the signal that makes the motor stop the function to the motor this moment, makes rolling axle stall to realize accurate regulation pouring weight from the height of base.

The present application may be further configured in a preferred example to: the infrared receiver is fixedly connected with two sliding plates on one side close to the second graduated scale, the two sliding plates are in sliding fit with the second graduated scale, the second graduated scale is located between the two sliding plates, a third bolt penetrates through one sliding plate, and the third bolt is used for abutting against the second graduated scale or not.

Through adopting above-mentioned technical scheme, slide through sliding plate and second scale cooperation of sliding, realize infrared receiver's slip to when infrared receiver slides to appointed test height, through rotatory third bolt, make the third bolt support tightly in the second scale, can restrict infrared receiver's displacement, realize infrared receiver's fixing.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the front fork to be detected is fixed on the fixing plate through the fixing assembly, then the fixing plate is moved to a corresponding distance above the positioning hole of the base along the length direction of the base according to the requirement of the impacted position of the front fork to be detected, the strip-shaped positioning hole is located right above the positioning hole, the appointed impacted position of the front fork to be detected is located right below the weight block, at least one positioning hole can be completely communicated with the strip-shaped positioning hole in the process of moving above the positioning hole of the base along the length direction of the base due to the fact that the length of the strip-shaped positioning hole is not smaller than the sum of the center distance between the two positioning holes and the diameter of one positioning hole, and finally the first nut is in threaded fit with the first bolt, so that the first nut is tightly abutted to the fixing plate, the displacement of the fixing plate is limited, the positioning of the front fork to be detected is achieved.

2. The front fork to be detected is arranged between the two mounting plates in a penetrating mode through the two mounting holes, the second bolt is enabled to abut against the front fork to be detected through rotating the second bolt, rotation and displacement of the front fork to be detected can be limited, and therefore the front fork to be detected is fixed.

3. Earlier through the circular telegram to the electromagnetic block, make the electromagnetic block have magnetism, then drive the elevator board through lifting unit drive elevator board and move the electromagnetic block and be close to the iron plate and inhale the cooperation until electromagnetic block and iron plate magnetism, rethread lifting unit adjusts the lifter board to appointed height, makes the electromagnetic block lose magnetism through the outage at last, realizes that the iron plate drives the pouring weight and does the falling body motion, and simple structure is swift.

Drawings

FIG. 1 is a schematic overall block diagram of a bicycle front fork testing apparatus of the present application;

FIG. 2 is a partially enlarged schematic view of portion A of FIG. 1;

fig. 3 is a partially enlarged schematic view of a portion B in fig. 2.

Reference numerals: 1. a base; 2. a universal wheel; 3. a guide post; 4. a support; 5. a weight; 6. detecting a front fork to be detected; 7. a gasket; 8. a lifting plate; 9. an electromagnetic block; 10. an iron block; 11. a fixed pulley; 12. a movable pulley; 13. a winding shaft; 14. a motor; 15. a top plate; 16. a bearing seat; 17. a rope; 18. a second scale; 19. an infrared receiver; 20. an infrared emitter; 21. a sliding plate; 22. a fixing plate; 23. positioning holes; 24. strip-shaped positioning holes; 25. a first scale; 26. a connecting plate; 27. mounting a plate; 28. and (7) mounting holes.

Detailed Description

The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application to assist in understanding, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

It should be noted that the terms "first", "second", etc. in the present invention are used for distinguishing similar objects, and are not necessarily used for describing a particular order or sequence. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below do not represent all implementations consistent with the present disclosure.

In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship, unless otherwise specified.

A bicycle front fork testing apparatus of the present application is described below with reference to the accompanying drawings.

As shown in fig. 1, the bicycle front fork testing device comprises a base 1, a universal wheel 2 is arranged at the bottom of the base 1, so that an operator can conveniently push the device to a designated testing position, the universal wheel 2 is provided with a brake mechanism, when the testing device reaches the designated testing position, the brake mechanism can limit the displacement of the testing device, so as to fix the testing device, a guide post 3 and a support 4 are fixedly connected to the top of the base 1, the guide post 3 is cylindrical, the number of the guide posts 3 is two, a weight 5 for falling body movement is arranged between the two guide posts 3, the weight 5 is connected between the two guide posts 3 in a sliding manner along the height direction of the guide posts 3, the two guide posts 3 vertically penetrate through the weight 5, when the front fork 6 to be detected is positioned on the base 1, the weight block 5 is positioned right above the front fork 6 to be detected, the guide post 3 plays a role in guiding the movement of the weight block 5, the weight block 5 can only do falling body movement along the height direction of the guide post 3, the weight block 5 is prevented from deviating, in addition, a gasket 7 is arranged at the bottom of the weight block 5, the top of the gasket 7 is fixedly connected with a plurality of single-head studs, the plurality of single-head studs penetrate through the weight block 5, a second nut is arranged at one end of each single-head stud, the second nut is in threaded fit with the single-head studs and abuts against the top of the weight block 5, the gasket 7 can play a role in protection when the weight block 5 impacts the front fork 6 to be detected, the service life of the weight block 5 is prolonged, and the gasket can be detachably and fixedly connected to the bottom of the weight block 5 in a threaded fit mode of the single-head studs and the second nuts, and an operator can conveniently replace the damaged gasket 7 in time;

the lifting plate 8 is arranged between the two guide posts 3, the lifting plate 8 is connected between the two guide posts 3 in a sliding manner, the two guide posts 3 vertically penetrate through the lifting plate 8, the lifting plate 8 is positioned right above the heavy block 5, an impact component used for enabling the heavy block 5 to do falling motion or not is arranged between the lifting plate 8 and the heavy block 5, the impact component comprises an electromagnetic block 9 and an iron block 10, the electromagnetic block 9 is detachably and fixedly connected to the bottom of the lifting plate 8, the iron block 10 is detachably and fixedly connected to the top of the heavy block 5, the iron block 10 belongs to magnetic material, when the electromagnetic block 9 is electrified, the electromagnetic block 9 can be in magnetic attraction fit with the iron block 10, and the electromagnetic block 9 is enabled to have magnetism by electrifying the electromagnetic block 9, then the lifting plate 8 is driven by the lifting assembly to drive the electromagnetic blocks 9 to be close to the iron blocks 10 until the electromagnetic blocks 9 and the iron blocks 10 are matched in a magnetic attraction manner, the lifting plate 8 is adjusted to a specified height by the lifting assembly, finally the electromagnetic blocks 9 lose magnetism by power failure, the weight 5 is driven by the iron blocks 10 to do falling body movement, the structure is simple and rapid, the number of the electromagnetic blocks 9 can be multiple, the electromagnetic blocks 9 are fixedly connected to the bottom of the lifting plate 8 along the length direction of the lifting plate 8, the iron blocks 10 are fixedly connected to the top of the weight 5 in a one-to-one correspondence manner to the positions of the electromagnetic blocks 9, when the electromagnetic blocks 9 are electrified, the magnetic connection between the electromagnetic blocks 9 and the iron blocks 10 is more stable, and the maximum weight of the weight 5 can be increased;

the top of the base 1 is also fixedly connected with a bracket 4, the bracket 4 is provided with a lifting assembly for adjusting the height of the weight 5 from the front fork 6 to be detected, specifically, the lifting assembly comprises a fixed pulley 11, a movable pulley 12, a winding shaft 13 and a motor 14 for driving the winding shaft 13 to rotate, the top of the bracket 4 is fixedly connected with a top plate 15, two opposite sides of the top plate 15 are fixedly connected with mounting seats, the fixed pulley 11 is rotatably connected between the two mounting seats in a bearing connection manner, the top of the lifting plate 8 is fixedly connected with a bearing seat 16, the movable pulley 12 is rotatably connected with the bearing seat 16, the fixed pulley 11 and the movable pulley 12 form a pulley structure, the winding shaft 13 and the motor 14 are both fixedly mounted on the top plate 15, an output shaft of the motor 14 is coaxially and fixedly connected with the winding shaft 13, a rope 17 is arranged on the outer surface of the winding shaft 13, one end of the rope 17 is wound around and abutted against the outer surface of the fixed pulley 11 and the outer surface of the movable pulley 12, when the electromagnetic block 9 is matched with the iron block 10 through magnetic attraction, the winding shaft 13 is driven to rotate through the motor 14, the outer surface of the winding shaft 13 is enabled to unfold or wind the rope 17, when the winding shaft 13 winds, the rope 17 applies upward tension and friction to the bottom of the movable pulley 12, the movable pulley 12 moves upward, when the winding shaft 13 unfolds, the bottom of the movable pulley 12 is subjected to downward friction applied by the rope 17 and the gravity of the movable pulley 12, the movable pulley 12 moves downward, the movable pulley 12 drives the lifting plate 8 to be close to or far away from the base 1, and the height of the weight 5 from the base 1 is adjusted;

in addition, as shown in fig. 1 and fig. 2, a second scale 18 is fixedly connected to the base 1 along the height direction of the guide post 3, an infrared receiver 19 is slidably connected to the scale, specifically, two sliding plates 21 are fixedly connected to one side of the infrared receiver 19, which is close to the second scale 18, both the two sliding plates 21 are slidably fitted with the second scale 18, the second scale 18 is located between the two sliding plates 21, a third bolt penetrates through one of the sliding plates 21, the third bolt is used for abutting against the second scale 18 or not, the sliding plate 21 is slidably fitted with the second scale 18 to realize the sliding of the infrared receiver 19, and when the infrared receiver 19 slides to a specified test height, the third bolt is abutted against the second scale 18 by rotating the third bolt, can restrict infrared receiver 19's displacement, realize infrared receiver 19's fixing, 8 one side fixedly connected with infrared emitter 20 of lifter plate, when infrared receiver 19 aligns with infrared emitter 20 level, infrared receiver 19 sends the signal that makes motor 14 stop the operation to motor 14, operating personnel can be according to appointed test height, slide infrared receiver 19 to the corresponding position of second scale 18, then drive rolling axle 13 through motor 14 and rotate, make movable pulley 12 drive lifter plate 8 keep away from base 1 and remove until infrared receiver 19 aligns with infrared emitter 20 level, infrared receiver 19 sends the signal that makes motor 14 stop the operation to motor 14 this moment, make rolling axle 13 stall, thereby realize the height that accurate regulation pouring weight 5 leaves base 1.

In order to adjust the impacted position of the front fork 6 to be detected, as shown in fig. 1 and 3, the top of the base 1 is detachably and fixedly connected with a fixing plate 22 in a threaded connection mode, a plurality of positioning holes 23 are arranged along the length direction of the base 1, the fixing plate 22 is provided with strip-shaped positioning holes 24 along the length direction of the base 1, the width of each strip-shaped positioning hole 24 is not smaller than the aperture of each positioning hole 23, the length of each strip-shaped positioning hole 24 is not smaller than the sum of the center distance between two positioning holes 23 and the diameter of one positioning hole 23, so that at least one positioning hole 23 can be completely communicated with each strip-shaped positioning hole 24 in the process that the fixing plate 22 moves above the positioning holes 23 of the base 1 along the length direction of the base 1, the fixing plate 22 is provided with a first bolt and a first nut, and the first bolt penetrates through each strip-shaped positioning hole 24 to be in threaded fit with the positioning holes 23, the first nut is in threaded fit with the first bolt and abuts against the fixing plate 22, the top of the base 1 is fixedly connected with a first graduated scale 25 along the length direction of the base 1, so that an operator can conveniently and accurately adjust the position of the front fork 6 to be detected, when the front fork 6 to be detected is subjected to strength detection, the front fork 6 to be detected is fixed on the fixing plate 22 through the fixing component, then the fixing plate 22 is moved to a corresponding distance above the positioning hole 23 of the base 1 along the length direction of the base 1 according to the requirement of the position of the front fork 6 to be detected, the strip-shaped positioning hole 24 is positioned right above the positioning hole 23, the appointed impacted position of the front fork 6 to be detected is positioned right below the weight block 5, and finally the first nut is in threaded fit with the first bolt, so that the first nut abuts against the fixing plate 22 to limit the displacement of the fixing plate 22 and realize the positioning of the front fork 6 to be detected, compared with a guide rail using mode, the structure is simple and firm to mount, the cost is low, and the use cost of the test equipment can be reduced;

wherein, fixed subassembly includes connecting plate 26, fixed connection in fixed plate 22 can be dismantled to connecting plate 26 adopts threaded connection's mode, the equal fixedly connected with mounting panel 27 in relative both sides of connecting plate 26, two mounting panels 27 all are equipped with mounting hole 28, the size of mounting hole 28 and the size looks adaptation of waiting to detect front fork 6, operating personnel can dismantle change connecting plate 26 according to waiting to detect front fork 6 of unidimensional, two mounting panels 27 one side all are equipped with the second bolt, second bolt screw thread runs through mounting panel 27 to in the mounting hole 28, it wears to locate between two mounting panels 27 to wait to detect front fork 6 via two mounting holes 28, through rotatory second bolt, make the second bolt support tightly in waiting to detect front fork 6, can restrict to wait to detect the rotation and the displacement of front fork 6, thereby realize treating the fixed of detecting front fork 6.

The above-described embodiments should not be construed as limiting the scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bicycle front fork test apparatus, comprising:

the positioning device comprises a base (1), wherein a plurality of positioning holes (23) are formed in the base (1) in an arrayed manner along the length direction of the base (1);

the fixing plate (22) is provided with a strip-shaped positioning hole (24) along the length direction of the base (1), the length of the strip-shaped positioning hole (24) is not less than the sum of the center distance between two positioning holes (23) and the diameter of one positioning hole (23), the width of the strip-shaped positioning hole (24) is not less than the aperture of the positioning hole (23), the fixing plate (22) is provided with a first bolt and a first nut, the first bolt penetrates through the strip-shaped positioning hole (24) to be in threaded fit with the positioning hole (23), the first nut is in threaded fit with the first bolt and abuts against the fixing plate (22), and the fixing plate (22) is provided with a fixing component for fixing a front fork (6) to be detected;

the front fork detection device comprises a guide post (3), one end of the guide post (3) is fixedly connected to the top of the base (1), the guide post (3) is connected with a weight (5) used for falling motion in a sliding mode along the height direction of the guide post (3), when a front fork (6) to be detected is located above a fixing plate (22), the weight (5) is located right above the front fork (6) to be detected, the guide post (3) is provided with a lifting plate (8), the lifting plate (8) penetrates through the guide post (3) along the height direction of the guide post (3) and is connected to the guide post (3) in a sliding mode, the lifting plate (8) is located right above the weight (5), and an impact assembly used for enabling the weight (5) to do falling motion or not is arranged between the lifting plate (8) and the weight (5);

the support (4), support (4) fixed connection in base (1) top, support (4) are equipped with and are used for adjusting weight (5) apart from the lift subassembly of the height of waiting to detect front fork (6).

2. A bicycle front fork testing apparatus according to claim 1, characterized in that a first scale (25) is fixedly connected to the top of the base (1) along the length of the base (1).

3. The bicycle front fork testing device according to claim 1, wherein the fixing assembly comprises a connecting plate (26), the connecting plate (26) is detachably and fixedly connected to the fixing plate (22) in a threaded connection manner, mounting plates (27) are fixedly connected to two opposite sides of the connecting plate (26), two mounting plates (27) are provided with mounting holes (28), the size of each mounting hole (28) is matched with that of the front fork (6) to be tested, a second bolt is arranged on one side of each mounting plate (27), penetrates through the mounting plates (27) to the mounting holes (28) in a threaded manner, and the second bolt is used for abutting against the front fork (6) to be tested.

4. A bicycle fork testing apparatus as claimed in claim 1, wherein the impact assembly comprises an electromagnet block (9) and an iron block (10), the electromagnet block (9) being detachably and fixedly connected to the bottom of the lifting plate (8), the iron block (10) being detachably and fixedly connected to the top of the weight block (5), the electromagnet block (9) being magnetically engaged with the iron block (10) when the electromagnet block (9) is energized.

5. The bicycle fork testing apparatus of claim 4, wherein the plurality of impact assemblies are provided in a plurality of sets.

6. The bicycle front fork testing device according to claim 1, wherein a gasket (7) is arranged at the bottom of the weight (5), a plurality of single-headed studs are fixedly connected to the top of the gasket (7), the single-headed studs penetrate through the weight (5), one end of each single-headed stud is provided with a second nut, and the second nut is in threaded fit with the single-headed studs and abuts against the top of the weight (5).

7. A bicycle front fork test device according to claim 4, characterized in that the lifting assembly comprises a fixed pulley (11), a movable pulley (12), a winding shaft (13) and a motor (14) for driving the winding shaft (13) to rotate, the fixed pulley (11) is rotatably connected to the top of the bracket (4), the movable pulley (12) is rotatably connected to the top of the lifting plate (8), the fixed pulley (11) and the movable pulley (12) form a pulley structure, the winding shaft (13) and the motor (14) are both fixedly mounted to the top of the bracket (4), the output shaft of the motor (14) is coaxially and fixedly connected to the winding shaft (13), a rope (17) is wound on the outer surface of the winding shaft (13), and one end of the rope (17) is wound around and abutted to the outer surface of the fixed pulley (11) and the outer surface of the movable pulley (12).

8. A bicycle front fork testing apparatus according to claim 7, characterized in that the base (1) is fixedly connected with a second graduated scale (18) along the height direction of the guide post (3), the graduated scale is slidably connected with an infrared receiver (19), an infrared emitter (20) is fixedly connected to one side of the lifting plate (8), and when the infrared receiver (19) is horizontally aligned with the infrared emitter (20), the infrared receiver (19) sends a signal to the motor (14) to stop the motor (14).

9. The bicycle front fork testing apparatus according to claim 8, wherein the infrared receiver (19) is fixedly connected with two sliding plates (21) on one side close to the second scale (18), the two sliding plates (21) are both in sliding fit with the second scale (18), the second scale (18) is located between the two sliding plates (21), one of the sliding plates (21) is threaded through with a third bolt, and the third bolt is used for abutting against the second scale (18) or not.