Three-point type quick tire-holding wheel clamp

Abstract

The invention discloses a three-point type quick tire-holding wheel clamp which comprises a rear cover plate, a bearing is mounted in the center of the top of the rear cover plate, a rotating disc is mounted on the bearing, a coil spring is mounted in the center of the top of the rotating disc, a coil spring fixing box sleeves the coil spring, and a main shell is mounted at the top of the rear cover plate. A pin shaft seat is mounted at the top of the main shell, and the bottom of the pin shaft seat extends into the coil spring fixing box; three wheel clamping arms are evenly arranged on the periphery of the rear cover plate, and the wheel clamping arms are connected with the rotating disc through connecting rods. A clamping shaft is arranged on one side of the rotating disc, a front clamping block and a rear clamping block are installed on the clamping shaft, and the front clamping block and the rear clamping block are located at the top and the bottom of the rotating disc respectively. The rotating disc is driven to rotate through stretching of the coil spring, and the rotating disc drives the connecting rod, so that the wheel clamp stretches to clamp a tire, the wheel clamp is enlarged and shrunk, and tires of different sizes are conveniently clamped.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive tools, and particularly to a three-point quick tire-holding wheel clamp. Background Art

[0002] With the progress of society, the continuous development of technology, and the continuous improvement of people's material living standards, automobiles have brought great convenience to people's work, study, and life, and thus have been widely used. However, when using an automobile, it is necessary to perform wheel alignment on the four wheels of the automobile. Furthermore, when performing the alignment, it is necessary to perform alignment adjustment on the four wheels of the automobile. When making the adjustment, it is necessary to clamp the wheel clamp of the four-wheel aligner on the wheel hub through the jaws, and the central seat hole of the wheel clamp of the four-wheel aligner houses the sensor of the four-wheel aligner to facilitate the normal alignment adjustment work of the four-wheel aligner.

[0003] At present, the wheel clamps of automotive four-wheel aligners on the market are relatively large and bulky, and are not convenient to install. Moreover, the new four-wheel aligners are inclined towards being intelligent and focus on the direction of visual positioning. The original wheel clamps of automotive four-wheel aligners are too large and bulky and can no longer be applied to the new four-wheel aligners, and they cannot be adapted to use with various different sizes of wheel hubs. Therefore, it is very necessary to design a relatively small and compact clamp that uses a target for visual positioning and quick tire holding. Summary of the Invention

[0004] The purpose of the present invention is to provide a three-point quick tire-holding wheel clamp, which can achieve quick tire holding through a torsion spring, saving time, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A three-point quick tire-holding wheel clamp includes a rear cover plate. A bearing is installed at the center position of the top of the rear cover plate, and a turntable is installed on the bearing. A torsion spring is installed at the center position of the top of the turntable, and a torsion spring fixing box is sleeved on the torsion spring. The main housing is installed on the top of the rear cover plate, and a pin shaft seat is installed on the top of the main housing. The bottom of the pin shaft seat extends into the torsion spring fixing box;

[0006] Three wheel clamp arms are evenly arranged around the rear cover plate, and the wheel clamp arms are connected to the turntable through connecting rods;

[0007] A clamping shaft is arranged on one side of the turntable, and a front clamping block and a rear clamping block are installed on the clamping shaft. The front clamping block and the rear clamping block are respectively located at the top and bottom of the turntable. A return spring sleeved on the clamping shaft is arranged between the front clamping block and the rear clamping block.

[0008] Preferably, the torsion spring fixing box is fixedly installed on the top of the turntable, one end of the torsion spring is fixed on the turntable, and the other end of the turntable is fixed on the pin shaft seat.

[0009] Preferably, the pin shaft seat is fixedly installed on the main housing by bolts, and a runner is installed on one side of the pin shaft seat.

[0010] Preferably, a handle is fixedly installed on one side of the top of the main housing by bolts.

[0011] Preferably, three limiting frames are evenly arranged around the rear cover plate, and the wheel clamping arm is movably installed in the limiting frame.

[0012] Preferably, a limiting pin socket is sleeved and installed on the wheel clamping arm.

[0013] Preferably, rollers are installed on both sides of the wheel clamping arm on the rear cover plate, and the rollers are adapted to the wheel clamping arm.

[0014] Preferably, the top of the clamping shaft extends outside the main housing, and a handwheel is installed. A spacer sleeve sleeved on the clamping shaft is arranged below the handwheel, and the spacer sleeve is located on the top of the main housing.

[0015] Preferably, clamping pads are installed on both the front clamping block and the rear clamping block, and the clamping pads are adapted to the turntable.

[0016] Preferably, a handle is installed on the top of any one of the wheel clamping arms.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] By means of the expansion and contraction of the coil spring to drive the rotation of the turntable, and the turntable drives the connecting rod, the telescopic clamping of the tire by the wheel clamp is realized, and the magnification and reduction of the wheel clamp are realized, which is convenient for clamping tires of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall exploded structure schematic diagram of the present invention;

[0020] Figure 2 It is a front view structure schematic diagram of the present invention;

[0021] Figure 3 It is a top view structure schematic diagram of the present invention;

[0022] Figure 4 It is a bottom view structure schematic diagram of the present invention;

[0023] Figure 5 It is an exploded structure schematic diagram of the turntable part of the present invention;

[0024] Figure 6 It is a turntable clamping structure schematic diagram of the present invention;

[0025] Figure 7 It is a structure schematic diagram of the installation part of the turntable and the coil spring of the present invention;

[0026] Figure 8 This is a schematic diagram of the partial structure of the wheel clamping arm of the present invention.

[0027] In the figure: 1. Torsion spring fixing box; 2. Torsion spring; 3. Bearing; 4. Turntable; 5. Handwheel; 6. Handle; 7. Front clamping block; 8. Clamping pad; 9. Wheel clamping arm; 10. Handle; 11. Limit pin seat; 12. Main housing; 13. Pin shaft seat; 14. Rotating wheel; 15. Sleeve; 16. Return spring; 17. Rear clamping block; 18. Rear cover plate; 19. Link; 20. Roller; 21. Limit frame. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-8 , the present invention provides a technical solution: a three-point type quick tire clamping wheel clamp, including a rear cover plate 18, a bearing 3 is installed at the center position of the top of the rear cover plate 18, and a turntable 4 is installed on the bearing 3. A torsion spring 2 is installed at the center position of the top of the turntable 4, and a torsion spring fixing box 1 is sleeved on the torsion spring 2. The top of the rear cover plate 18 is installed with a main housing 12, and a pin shaft seat 13 is installed on the top of the main housing 12. The bottom of the pin shaft seat 13 extends into the torsion spring fixing box 1. By means of the expansion and contraction of the torsion spring to drive the rotation of the turntable and the turntable driving the link, the expansion and contraction clamping of the tire by the wheel clamp is realized;

[0030] Three wheel clamping arms 9 are evenly arranged around the rear cover plate 18, and the wheel clamping arms 9 are connected to the turntable 4 through a link 19;

[0031] A clamping shaft is arranged on one side of the turntable 4, and a front clamping block 7 and a rear clamping block 17 are installed on the clamping shaft. The front clamping block 7 and the rear clamping block 17 are respectively located at the top and bottom of the turntable 4, and a return spring 16 sleeved on the clamping shaft is arranged between the front clamping block 7 and the rear clamping block 17.

[0032] In the present invention, the torsion spring fixing box 1 is fixedly installed on the top of the turntable 4, one end of the torsion spring 2 is fixed on the turntable 4, and the other end of the turntable 4 is fixed on the pin shaft seat 13.

[0033] In the present invention, the pin shaft seat 13 is fixedly installed on the main housing 12 through bolts, and a rotating wheel 14 is installed on one side of the pin shaft seat 13.

[0034] In the present invention, a handle 6 is fixedly installed on one side of the top of the main housing 12 through bolts.

[0035] In the present invention, three limiting frames 21 are evenly arranged around the rear cover plate 18, and the wheel clamping arms 9 are movably installed in the limiting frames 21. When shrinking, they can be fixed to prevent internal collision with each other.

[0036] In the present invention, a limiting pin socket 11 is sleeved and installed on the wheel clamping arm 9. There are convex points in the limiting pin socket 11, and there are three dot holes on the wheel clamping arm. According to the size of the tire diameter, a suitable hole can be pre-fixed and inserted to achieve compatibility with a wider range of tire sizes.

[0037] In the present invention, rollers 20 installed on the rear cover plate 18 are arranged on both sides of the wheel clamping arm 9, and the rollers 20 are adapted to the wheel clamping arm 9, which can make the wheel clamping arm 9 extend and retract better.

[0038] In the present invention, the top of the clamping shaft extends outside the main housing 12, and a handwheel 5 is installed. A spacer sleeve 15 sleeved on the clamping shaft is arranged below the handwheel 5, and the spacer sleeve 15 is located at the top of the main housing 12.

[0039] In the present invention, clamping pads 8 are installed on both the front clamping block 7 and the rear clamping block 17, and the clamping pads 8 are adapted to the turntable 4. Through the arrangement of the clamping pads 8, it is convenient for the front clamping block 7 and the rear clamping block 17 to clamp the turntable 4 more firmly.

[0040] In the present invention, a handle 10 is installed at the top of any one of the wheel clamping arms 9. Pulling the handle 10 can make the wheel clamping arm move outwards.

[0041] In the present invention: When in use, by loosening the handwheel 5, the turntable 4 can freely rotate and rebound. The coil spring 2 is fixed on the coil spring fixing box 1. One end of the coil spring 2 is fixed on the turntable 4, and the other end of the turntable 4 is fixed on the pin shaft seat 13. Due to the action of the coil spring 2, the wheel clamping arm 9 always has a force to retract inwards, but pulling the handle 10 can make the wheel clamping arm 9 move outwards. After holding the tire, it is locked and positioned by the handwheel 5. Among them, the three wheel clamping arms 9 are embedded in their respective limiting frames 21. A connecting rod 19 is fixed on the wheel clamping arm 9, and the connecting rod 19 is fixed on the turntable 4. The rotation of the turntable 4 drives the connecting rod 19 to push the wheel clamping arm 9 to expand and contract (the maximum stroke is 90MM), realizing the enlargement and reduction of the wheel clamp and facilitating clamping of the tire.

[0042] The three wheel clamping arms 9 of the present invention are composed of a tire-holding arm and a guide rod. The two are slidably embedded and are in an I shape to achieve stable sliding. There is a limiting pin socket 11 at the end of the guide rod 19. There are convex points in the limiting pin socket 11, and there are three dot holes on the wheel clamping arm. According to the size of the tire diameter, a suitable hole can be pre-fixed and inserted to achieve compatibility with a wider range of tire sizes.

[0043] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-point quick tire clamp, comprising a rear cover plate (18), characterized in that: A bearing (3) is installed at the center of the top of the rear cover plate (18), and a rotating disk (4) is installed on the bearing (3); a coil spring (2) is installed at the center of the top of the rotating disk (4), and a coil spring fixing box (1) is sleeved on the coil spring (2); a main housing (12) is installed at the top of the rear cover plate (18), and a pin shaft seat (13) is installed at the top of the main housing (12), and the bottom of the pin shaft seat (13) extends into the coil spring fixing box (1); Three wheel clamping arms (9) are evenly arranged around the rear cover plate (18), and the wheel clamping arms (9) are connected to the rotating disk (4) via a connecting rod (19); A clamping shaft is provided on one side of the turntable (4), and a front clamping block (7) and a rear clamping block (17) are installed on the clamping shaft. The front clamping block (7) and the rear clamping block (17) are respectively located at the top and bottom of the turntable (4), and a return spring (16) sleeved on the clamping shaft is provided between the front clamping block (7) and the rear clamping block (17).

2. The three-point quick tire clamp according to claim 1, characterized in that: The coil spring fixing box (1) is fixedly mounted on the top of the rotating disk (4), one end of the coil spring (2) is fixed on the rotating disk (4), and the other end of the rotating disk (4) is fixed on the pin shaft seat (13).

3. The three-point quick tire clamp according to claim 1, characterized in that: The pin shaft seat (13) is fixedly mounted on the main housing (12) by means of bolts, and a rotating wheel (14) is mounted on one side of the pin shaft seat (13).

4. The three-point quick tire clamp according to claim 1, characterized in that: A handle (6) is fixedly mounted on one side of the top of the main housing (12) by means of bolts.

5. The three-point quick tire clamp according to claim 1, characterized in that: Three limiting frames (21) are evenly arranged around the rear cover plate (18), and the wheel clamping arm (9) is movably installed in the limiting frames (21).

6. The three-point quick tire clamp according to claim 1, characterized in that: A limited position latch seat (11) is sleeved and installed on the wheel clamp arm (9).

7. The three-point quick tire clamp according to claim 1, characterized in that: Rollers (20) mounted on the rear cover plate (18) are provided on both sides of the wheel clamp arm (9), and the rollers (20) are matched with the wheel clamp arm (9).

8. The three-point quick tire clamp according to claim 1, characterized in that: The top of the clamping shaft extends outside the main housing (12) and is provided with a hand wheel (5). A spacer sleeve (15) sleeved on the clamping shaft is provided below the hand wheel (5), and the spacer sleeve (15) is located at the top of the main housing (12).

9. The three-point quick tire clamp according to claim 1, characterized in that: The front clamping block (7) and the rear clamping block (17) are both provided with clamping pads (8), and the clamping pads (8) are adapted to the rotating disk (4).

10. The three-point quick tire clamp according to claim 1, characterized in that: A handle (10) is installed on the top of one of the wheel clamp arms (9).

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