Tire extractor of heavy-load vehicle

Abstract

The utility model belongs to the field of automobile dismounting tools, and relates to a tire extractor of a heavy-load vehicle, which comprises a handle lever integrally formed in an L shape, a short end of the handle lever is fixedly connected with a propping plate, a bending position of the handle lever is fixedly connected with a hinge frame, and the hinge frame is connected with a pull rod through a rotating column. Matched automatic clamping assemblies are arranged on the tail portion of the pull rod and the handle rod, a drag hook is arranged at the front end of the pull rod, and a clamping plate assembly matched with the drag hook is further arranged on the pull rod. Through transmission of meshed teeth on the tail portion of the pull rod and the handle rod, the length of the pull rod can be adjusted at any time, the situation that the handle rod makes contact with the ground after being pressed down once, and consequently pressing-down work cannot be conducted again can be avoided, and the pull rod can be suitable for vehicles of various installation specifications.

Description

Technical Field

[0001] The utility model belongs to the field of automobile disassembly tools and relates to a tire remover for a heavy-load vehicle. Background Art

[0002] When inspecting and repairing some heavy-loaded vehicle tires, the tires need to be removed. Since the wheels of heavy-loaded vehicles are very heavy, if a problem occurs outside a repair shop, it is difficult to remove the tire from the axle without a special tire remover. Usually, a crowbar is used to pry it down, which sometimes cannot be pried off and there is also a risk of scratching the wheel hub. The existing utility model patent with patent number CN206606015U, a tool for removing tires includes a removal part with a hook, a support part for support and a handle, the removal part and the support part are Y-shaped, wherein the removal part and the handle are movably connected, and the support part and the handle are connected as one.

[0003] The prior art has the following technical defects:

[0004] The above technical solution can easily remove the wheel through the lever principle, but the wheel installation depths of some models are different. When the wheel installation depth is deeper, the wheel can be pulled out partially by pressing down the handle, but it cannot be pulled out completely. However, since the lengths of the removal part and the support part are fixed, it is difficult to exert force when pressing down the handle, and the wheel needs to be manually removed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a tire remover for a heavy-duty vehicle.

[0006] The tire remover for a heavy-duty vehicle described in the utility model comprises a handle rod, which is integrally formed in an L shape, a short end of the handle rod is fixedly connected to a support plate, a bending part of the handle rod is fixedly connected to a hinge frame, a pull rod is connected to the hinge frame through a rotating column, a matching automatic clamping assembly is provided on the tail of the pull rod and the handle rod, a pull hook is provided at the front end of the pull rod, and a splint assembly matching the pull hook is also provided on the pull rod.

[0007] Working process or working principle:

[0008] When in use, the hook at the front end of the pull rod is inserted into the hole of the wheel and the support plate is pressed against the axle, and then it is fixed in front of the wheel hole through the clamping plate assembly, so that the hook and the clamping plate assembly can clamp the wheel with a certain force, and then the handle rod is pressed downward, and the wheel moves outward under the action of the support plate and the hook. When it cannot be completely removed by one downward pressure, the handle rod can be lifted upward, and the automatic clamping assembly can be used to adjust the fixed angle between the pull rod and the handle rod for a second downward pressure to achieve the removal of the wheel.

[0009] The axle surface is not smooth, and the cushion layer can increase friction when the axle is pressed against the axle, and can also prevent the axle from being directly in contact with the axle and causing damage.

[0010] The automatic clamping assembly includes a rack arranged on the handle rod, and a clamping tooth matched with the rack is provided at the tail of the pull rod. Through the cooperation of the clamping tooth and the rack, the pull rod can be fixed by force when pressed down, and the pull rod can automatically clamp the rack backward when lifted, thereby realizing automatic clamping.

[0011] The articulated frame is provided with a travel groove matched with the rotating column, and the pull rod can be moved forward and backward on the articulated frame through the travel groove to adapt to different models of cars.

[0012] The clamping plate assembly includes two retaining rings arranged on the pull rod, a sliding sleeve is slidably connected between the two retaining rings, a clamping plate is fixedly connected to the sliding sleeve, and a tightening bolt is provided on the sliding sleeve. The sliding sleeve can drive the clamping plate to slide between the two retaining rings, and when it slides to a suitable position, it can be tightened and fixed by the tightening bolt.

[0013] A hanging ring is provided at the tail end of the handle rod for easy hanging.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can adjust the length of the pull rod at any time through the meshing teeth transmission on the pull rod tail and the handle rod, and can avoid the handle rod touching the ground after being pressed down once, resulting in the inability to press down again. The utility model can be used in vehicles of various installation specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 This utility model Figure 1 A in the enlarged view,

[0018] Figure 3 This utility model Figure 1 Enlarged view of point B in .

[0019] In the figure: 1. pull rod; 2. stop plate; 3. handle rod; 4. hanging ring; 5. retaining ring; 6. sliding sleeve; 7. tightening bolt; 8. clamping plate; 9. hook; 10. articulated frame; 11. rack; 12. snap-on teeth; 13. rotating column; 14. travel groove. DETAILED DESCRIPTION

[0020] Example 1

[0021] like Figure 1 to Figure 3As shown, the tire remover for a heavy-duty vehicle described in the utility model includes a handle bar 3, which is integrally formed in an L shape, and a short end of the handle bar 3 is fixedly connected to a butt plate 2, and a hinged frame 10 is fixedly connected to the bend of the handle bar 3, and a pull rod 1 is connected to the hinged frame 10 through a rotating column 13, and a matching automatic clamping assembly is provided on the tail of the pull rod 1 and the handle bar 3, and a hook 9 is provided at the front end of the pull rod 1, and a splint 8 assembly matched with the hook 9 is also provided on the pull rod 1; a 5-10mm cushion layer is provided on the butt plate 2, and the surface of the axle is not flat. When the butt plate 2 is pressed against, the cushion layer can increase the friction force and avoid damage caused by direct contact between the butt plate 2 and the axle; the automatic clamping assembly includes a rack 11 arranged on the handle bar 3, and a rack 11 is provided at the tail of the pull rod 1 11 is matched with a locking tooth 12. Through the cooperation of the locking tooth 12 and the rack 11, the pull rod 1 can be fixed by force when pressed down, and the pull rod 1 automatically engages with the rack 11 backward when lifted, thereby realizing automatic locking; the articulated frame 10 is provided with a travel groove 14 matched with the rotating column 13, and the pull rod 1 can be moved forward and backward on the articulated frame 10 through the travel groove 14 to adapt to different models of cars; the splint 8 assembly includes two retaining rings 5 ​​arranged on the pull rod 1, a sliding sleeve 6 is slidably connected between the two retaining rings 5, a splint 8 is fixedly connected to the sliding sleeve 6, a tightening bolt 7 is provided on the sliding sleeve 6, and the sliding sleeve 6 can drive the splint 8 to slide between the two retaining rings 5. When it slides to a suitable position, it can be tightened and fixed by the tightening bolt 7; the tail end of the handle rod 3 is provided with a hanging ring 4 for convenient hanging.

[0022] Working process or working principle:

[0023] When in use, the hook 9 at the front end of the pull rod 1 is inserted into the hole of the wheel and the support plate 2 is pressed against the axle, and then the clamping plate 8 is driven close to the wheel by the sliding sleeve 6. When it reaches the appropriate position, it is locked to the front of the hole by the tightening bolt 7, so that the hook 9 and the clamping plate 8 can clamp the wheel with a certain force, and then the handle bar 3 is pressed downward. The wheel moves outward under the action of the support plate 2 and the hook 9. When it cannot be completely removed by one downward pressure, the handle bar 3 can be lifted upward. Since the hook 9 and the clamping plate 8 are in a relatively fixed state with the wheel, when the handle bar 3 is lifted upward, the engaging teeth 12 at the tail of the pull rod 1 automatically move backward. When the handle bar 3 is lowered when it is lifted to the appropriate position, the engaging teeth 12 are automatically clamped on the rack 11, thereby automatically adjusting the fixed angle between the pull rod 1 and the handle bar 3, and then pressing down again to remove the wheel.

[0024] The utility model can adjust the length of the pull rod 1 at any time through the meshing teeth transmission on the tail of the pull rod 1 and the handle rod 3, and can avoid the handle rod 3 touching the ground after being pressed down once, resulting in the inability to press down again. It can be used in vehicles with various installation specifications.

[0025] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A tire extractor for a heavy-duty vehicle, characterized in that: The invention comprises a handle bar (3), the handle bar (3) is integrally formed in an L shape, the short end of the handle bar (3) is fixedly connected to a support plate (2), the bending part of the handle bar (3) is fixedly connected to a hinge frame (10), the hinge frame (10) is connected to a pull rod (1) via a rotating column (13), the tail of the pull rod (1) and the handle bar (3) are provided with matching automatic clamping components, the front end of the pull rod (1) is provided with a draw hook (9), and the pull rod (1) is also provided with a splint component matching the draw hook (9).

2. The tire extractor for heavy-duty vehicles according to claim 1, characterized in that: The abutment plate (2) is provided with a 5-10 mm soft cushion layer.

3. The tire extractor for heavy-duty vehicles according to claim 2, characterized in that: The automatic clamping assembly comprises a rack (11) arranged on the handle bar (3), and a clamping tooth (12) matching the rack (11) is arranged at the tail of the pull rod (1).

4. The tire extractor for heavy-duty vehicles according to claim 3, characterized in that: The hinged frame (10) is provided with a travel groove (14) adapted to the rotating column (13).

5. The tire extractor for heavy-duty vehicles according to any one of claims 1 to 4, characterized in that: The clamping plate assembly comprises two retaining rings (5) arranged on the pull rod (1), a sliding sleeve (6) is slidably connected between the two retaining rings (5), a clamping plate (8) is fixedly connected to the sliding sleeve (6), and a tightening bolt (7) is provided on the sliding sleeve (6).

6. The tire extractor for heavy-duty vehicles according to claim 4, characterized in that: The tail end of the handle rod (3) is provided with a hanging ring (4).

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