Lengthening rod of wrench for dismounting tire of bus
By designing a combination structure of nut sleeve, sleeve and support rod for the extended rod of the bus tire removal wrench, the problems of large wrench footprint and poor stability were solved, achieving portability and stable use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-07
AI Technical Summary
Existing bus tire removal wrenches have problems such as large footprint, difficulty in storage and carrying when traveling, and poor stability during use, making them prone to damage.
An extended lever for removing bus tires has been designed, comprising a longitudinal bar and a transverse bar. Through a combination structure of a nut sleeve, a sleeve, and a support rod, the lever principle is used to achieve adjustable angle expansion and contraction of the transverse bar. Combined with the limiting structure of the annular insert plate and slot, the stability of the transverse bar during use and storage is ensured.
It achieves a stable and fixed effect when the crossbar is in use, and can be effectively stored when not in use, reducing space occupation, making it easy to carry when going out, and avoiding noise and damage.
Smart Images
Figure CN224088912U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of dismounting wrench, concretely relates to a bus tire dismounting wrench extension rod. BACKGROUND
[0002] Wrench is a kind of commonly used installation and dismounting tool, usually made of structural steel of carbon or alloy material, when needing to dismount bus tire, need to use wrench to tighten or unscrew bolt on tire, there are many kinds of wrench, among them, cross wrench is more commonly used when dismounting tire, mainly utilizes lever principle to turn bolt, screw, nut and other threaded fastening bolt or nut opening or sleeve fixture hand tool, and cross wrench is mainly divided into fixed type and hinged type two;
[0003] Fixed cross wrench is that two extension rods are fixedly welded together, and four dismounting sleeves with different hole diameters are installed on the corresponding end faces of cross-shaped extension rod, fixed cross wrench has good fixing effect when using, but on the one hand, it occupies larger area, is not easy to store and carry out, on the other hand, the angle of extension rod cannot be adjusted according to the position of bolt;
[0004] Hinged cross wrench is that hinged device is installed on the center of longitudinal extension rod two sides, and hinged device side movable hinged transverse extension rod, so that transverse extension rod can be opened or folded on longitudinal extension rod two sides through hinged device, and a fixed tube is sleeved on the outside of transverse extension rod, when transverse extension rod is opened to horizontal state, fixed tube can be moved to be sleeved at the connection of transverse extension rod and hinged device, to avoid transverse extension rod from moving by itself, when needing to fold transverse extension rod, fixed tube can be moved away from hinged device, at this time, transverse extension rod can be folded, so that the overall volume can be reduced, and storage and carrying out are facilitated, but in the process of using, the overall fixing property is poor, and when transverse extension rod is folded, there is also lack of fixing structure between transverse extension rod and longitudinal extension rod, so that transverse extension rod can easily swing and impact longitudinal extension rod to make noise or damage.
[0005] Therefore, it is necessary to invent a bus tire dismounting wrench extension rod. UTILITY MODEL CONTENTS
[0006] The utility model aims at solving the problems in the above background art.
[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a bus tire dismounting wrench extension rod, including longitudinal rod and crossbar, the crossbar is symmetrically hinged on longitudinal rod two sides, the one end outside of longitudinal rod is connected with nut sleeve, the one end of nut sleeve is rotatably connected with sleeve pipe, the sleeve pipe two sides are symmetrically hinged with support rod, the one end of support rod away from sleeve pipe is hinged with sliding sleeve.
[0008] Based on the above features: when the nut sleeve is not rotated, the nut sleeve will be locked in place, and the sleeve cannot be displaced outside the vertical rod. When the nut sleeve and the sleeve are displaced to the center of the vertical rod, the support rod will gradually become inclined and open, and the slide will also move away from the center of the vertical rod, so that the horizontal rod gradually opens to an inclined state, facilitating the adjustment of the angle of the horizontal rod according to the position of the bolt. When the end of the sleeve away from the nut sleeve abuts against one side of the baffle, the horizontal rod will open to a horizontal state, so that the vertical rod and the horizontal rod form a cross-shaped structure, improving the fixing effect when the horizontal rod is opened.
[0009] Preferably, the vertical rod and the horizontal rod form a cross-shaped structure.
[0010] Based on the above features: different diameter bolts, screws, nuts and other threaded fastening bolts or nut opening or sleeve hole fasteners can be twisted using the lever principle.
[0011] Preferably, an external thread is formed on the outer wall of one end of the vertical rod, and a baffle is fixedly installed on the outer portion of the end of the vertical rod close to the hinge of the horizontal rod.
[0012] Based on the above features: the nut sleeve is threadedly connected with the external thread on the outer wall of one end of the vertical rod, and the baffle can limit the nut sleeve and the sleeve.
[0013] Preferably, an internal thread is formed on the inner wall of the nut sleeve, and an annular insert plate is fixedly installed on the end of the nut sleeve close to the sleeve.
[0014] Based on the above features: the nut sleeve is connected with one end of the sleeve through the annular insert plate, and the nut sleeve and the sleeve are rotatably connected together through the limiting plate, and separation of the nut sleeve and the sleeve is avoided.
[0015] Preferably, a plurality of movable holes in an annular array are formed on the outer portion of the limiting plate, and a plurality of rolling balls are movably embedded in the inner portion of the movable holes.
[0016] Based on the above features: the nut sleeve and the sleeve are rotatably connected through the rolling balls, so that when the nut sleeve rotates, the sleeve can be displaced synchronously, but will not rotate with the nut sleeve.
[0017] Preferably, a central hole is formed in the middle of the sleeve, an annular insertion slot is formed on the side of the sleeve close to the nut sleeve, the annular insertion slot is located on the periphery of the central hole, and protruding plates are fixedly installed on both sides of the outer wall of the sleeve.
[0018] Based on the above features: one end of the support rod is movably hinged to both sides of the sleeve through the protruding plates, and the annular insert plate is matched with the annular insertion slot.
[0019] Preferably, a limiting slot in an annular structure is formed on the inner wall of the side of the annular insertion slot away from the central hole.
[0020] Based on the above features: the ring-shaped plug is limited in the ring-shaped slot, avoiding the separation of the nut sleeve and the sleeve.
[0021] The utility model discloses the beneficial effect is:
[0022] 1. Through the setting of the nut sleeve, sleeve and support rod, the horizontal rod can be horizontally unfolded and folded, when the nut sleeve and sleeve are displaced to the center position of the vertical rod, the support rod will gradually push the horizontal rod to open, when the nut sleeve is not needed to rotate and displace, the nut sleeve will be locked and will not move, at this time, the support rod will support and fix the unfolded horizontal rod, when the use is completed, the nut sleeve is rotated and displaced to the side away from the center of the vertical rod, at this time, the sleeve will pull the support rod to gradually change from the inclined state to the vertical state, and the sliding sleeve will also move to the center position close to the vertical rod, so that the horizontal rod is gradually folded to the vertical state, the support rod and the horizontal rod are folded and stored on the two sides of the vertical rod with external threads at one end, and the occupation of too much space is avoided as much as possible, and the horizontal rod is convenient to carry out.
[0023] 2. The ring-shaped plug and the ring-shaped slot are inserted together, so that the nut sleeve and the sleeve can be displaced synchronously, the limiting plate is fixedly installed outside the ring-shaped plug, and the limiting groove with a ring-shaped structure is formed in the inner wall of the side away from the center hole of the ring-shaped slot, the limiting plate is clamped in the limiting groove, the ring-shaped plug and the ring-shaped slot are prevented from being separated, at this time, the nut sleeve and the sleeve are also connected together, when the nut sleeve is rotated and moved up and down, the nut sleeve and the sleeve are rotated through the ball, so that the nut sleeve is rotated, and the sleeve can be displaced synchronously, but will not rotate with the nut sleeve. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 A bus tire dismounting wrench lengthening rod overall structure schematic view is provided for the utility model;
[0025] Figure 2 A bus tire dismounting wrench lengthening rod vertical rod and nut sleeve split drawing is provided for the utility model;
[0026] Figure 3 A bus tire dismounting wrench lengthening rod nut sleeve and sleeve split drawing is provided for the utility model;
[0027] Figure 4 A bus tire dismounting wrench lengthening rod nut sleeve another perspective structure schematic view is provided for the utility model.
[0028] Figure 5 A bus tire dismounting wrench lengthening rod sleeve sectional view is provided for the utility model.
[0029] In the figure: 1, longitudinal rod; 11, external thread; 12, baffle; 2, cross rod; 3, nut sleeve; 31, internal thread; 32, annular plug; 33, limiting plate; 331, ball; 4, sleeve; 41, central hole; 42, annular slot; 421, limiting groove; 43, convex plate; 5, support rod; 6, sliding sleeve. DETAILED DESCRIPTION
[0030] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.
[0031] Referring to the drawings Figures 1-3 The utility model provides a bus tire dismounting wrench lengthening rod, including longitudinal rod 1 and cross rod 2, the outer wall fixed mounting of longitudinal rod 1 center both sides has two articulators, and the one end of two cross rods 2 is articulated in this position, makes cross rod 2 be located longitudinal rod 1 both sides (longitudinal rod 1 and cross rod 2 are lengthening rod for carbon or alloy material's structural steel usually manufacture), to make longitudinal rod 1 and cross rod 2 present cross type structure (longitudinal rod 1 and cross rod 2 usually use carbon or alloy material's structural steel to manufacture), and longitudinal rod 1 and cross rod 2 are provided with four hexagonal sleeves for dismounting bolt at the end away from each other, (setting mode can be fixed connection also can be movable connection, and the inner diameter of four hexagonal sleeves is also not same, the present application is not specifically defined, according to need, personally setting, it is convenient for the size of different bolt to dismount and use);
[0032] The outer wall of one end of longitudinal rod 1 is provided with external thread 11, the outer part of the end close to external thread 11 of longitudinal rod 1 is connected with nut sleeve 3, nut sleeve 3 is the hollow tubular structure of both ends opening, the inner wall of nut sleeve 3 is provided with internal thread 31, it is convenient for nut sleeve 3 to be connected in the external thread 11 of one end of longitudinal rod 1 by screwing, the one end of nut sleeve 3 is rotatably connected with sleeve 4, when nut sleeve 3 is not rotated, nut sleeve 3 will be locked and not moved, sleeve 4 is also sleeved on the external part of longitudinal rod 1 and cannot be displaced, when nut sleeve 3 is rotated and displaced, sleeve 4 will also be displaced synchronously, but will not rotate synchronously with nut sleeve 3, the outer part of the end close to the articulation of longitudinal rod 1 and cross rod 2 is fixedly installed with baffle 12, to avoid nut sleeve 3 and sleeve 4 from separating from external thread 11 when being displaced on the external part of one end of longitudinal rod 1;
[0033] The sleeve 4 is symmetrically hinged with a support rod 5 on both sides, and the end of the support rod 5 away from the sleeve 4 is hinged with a sliding sleeve 6 (the sliding sleeve 6 is a hoop-shaped tubular structure, which is detachable, and facilitates the movable connection of the sliding sleeve 6 and the cross rod 2), the sliding sleeve 6 is a hollow tubular structure with two open ends, and the sliding sleeve 6 is slidably connected outside the two cross rods 2; when the nut sleeve 3 and the sleeve 4 are displaced to the center of the longitudinal rod 1, the support rod 5 will gradually become inclined and open, and at the same time the sliding sleeve 6 will move away from the center of the longitudinal rod 1, so that the cross rod 2 gradually opens to an inclined state, facilitating the adjustment of the angle of the cross rod 2 according to the position of the bolt; when the end of the sleeve 4 away from the nut sleeve 3 abuts against one side of the baffle 12, the cross rod 2 will open to a horizontal transverse state, so that the longitudinal rod 1 and the cross rod 2 form a cross-shaped structure, improving the fixing effect when the cross rod 2 is opened; when the nut sleeve 3 and the sleeve 4 are displaced to the side away from the center of the longitudinal rod 1, the support rod 5 will gradually change from an inclined state to a vertical state, and at the same time the sliding sleeve 6 will move to the center of the longitudinal rod 1, so that the cross rod 2 gradually converges to a vertical state, facilitating the folding and storage of the support rod 5 and the cross rod 2 on both sides of the longitudinal rod 1 with an external thread 11 at one end, avoiding occupying too much space and facilitating carrying out.
[0034] Referring to the drawings Figures 3-5 The end of the nut sleeve 3 close to the sleeve 4 is fixedly installed with an annular plug plate 32, the annular plug plate 32 is a hollow annular structure with two open ends, the nut sleeve 3 is connected with the sleeve 4 through the annular plug plate 32, the sleeve 4 is provided with a center hole 41 in the middle, facilitating the sleeve 4 to be sleeved outside the longitudinal rod 1, the side of the sleeve 4 close to the nut sleeve 3 is provided with an annular insertion slot 42, the annular insertion slot 42 is located outside the center hole 41, the sleeve 4 is fixedly installed with a lug plate 43 on both sides of the outer wall, one end of the support rod 5 is connected in the middle of the lug plate 43 and movably hinged through a hinge shaft, the annular plug plate 32 is inserted into the annular insertion slot 42, the outer part of the annular plug plate 32 is fixedly installed with a limiting plate 33, and the inner wall of the side of the annular insertion slot 42 away from the center hole 41 is provided with a limiting slot 421 of an annular structure, the limiting plate 33 is clamped in the limiting slot 421, avoiding the separation of the annular plug plate 32 and the annular insertion slot 42, at this time the nut sleeve 3 and the sleeve 4 will also be connected together, the outer part of the limiting plate 33 is provided with a movable hole in the form of an annular array, a ball 331 is movably embedded in the movable hole, one side of the ball 331 away from the limiting plate 33 is in rolling contact with the inner wall of the limiting slot 421, when the nut sleeve 3 is rotated up and down, the nut sleeve 3 and the sleeve 4 are rotated through the ball 331, so that when the nut sleeve 3 is rotated, the sleeve 4 can be displaced synchronously, but will not rotate with the nut sleeve 3.
[0035] The use process of the utility model is as follows: when the nut sleeve 3 rotates and displaces, the sleeve pipe 4 will also displace synchronously, but will not rotate synchronously with the nut sleeve 3, when the nut sleeve 3 and the sleeve pipe 4 displace to the center position of the vertical rod 1, the supporting rod 5 will gradually become oblique and open, simultaneously the sliding sleeve 6 will also move away from the center of the vertical rod 1, so that the horizontal rod 2 gradually opens to be oblique, when the end of the sleeve pipe 4 away from the nut sleeve 3 abuts against one side of the baffle 12, the horizontal rod 2 will open to be horizontal and transverse, so that the vertical rod 1 and the horizontal rod 2 present a cross structure, when the nut sleeve 3 does not need to rotate and displace, the nut sleeve 3 will be locked and will not move, because the limiting plate 33 is clamped in the limiting groove 421, the sleeve pipe 4 also cannot disengage, when the bus tire needs to be disassembled and assembled, the bolt on the tire can be tightened or loosened by using the hexagonal sleeve at one end of the vertical rod 1 or the horizontal rod 2, when the use is completed and needs to be carried and stored, the nut sleeve 3 and the sleeve pipe 4 displace to the side away from the center of the vertical rod 1, at this time the supporting rod 5 will gradually change from oblique to vertical, simultaneously the sliding sleeve 6 will also move to the center of the vertical rod 1, so that the horizontal rod 2 gradually converges to be vertical.
[0036] The above is only the preferred embodiment of the utility model, any skilled person in the art can modify the utility model by using the technical solutions described above or modify it into equivalent technical solutions. Therefore, any simple modification or equivalent replacement according to the technical solutions of the utility model is within the scope of protection of the utility model.
Claims
1. An extended lever for removing bus tires, comprising a longitudinal bar (1) and a transverse bar (2), wherein the transverse bar (2) is symmetrically hinged to both sides of the longitudinal bar (1), characterized in that: One end of the longitudinal rod (1) is externally connected to a nut sleeve (3), and one end of the nut sleeve (3) is rotatably connected to a sleeve (4). Support rods (5) are symmetrically hinged on both sides of the sleeve (4), and a sliding sleeve (6) is hinged to the end of the support rod (5) away from the sleeve (4).
2. The extended lever for removing bus tires according to claim 1, characterized in that: The longitudinal bar (1) and the transverse bar (2) are in a cross shape.
3. The extended lever for removing bus tires according to claim 1, characterized in that: The longitudinal rod (1) has an external thread (11) on its outer wall at one end, and a baffle (12) is fixedly installed on the outer side of the longitudinal rod (1) near the hinge of the cross rod (2).
4. The extended lever for removing bus tires according to claim 1, characterized in that: The inner wall of the nut sleeve (3) is provided with an internal thread (31). An annular insert plate (32) is fixedly installed at one end of the nut sleeve (3) near the sleeve (4). A limit plate (33) is fixedly installed on the outside of the annular insert plate (32).
5. The extended lever for removing bus tires according to claim 4, characterized in that: The limiting plate (33) has an annular array of movable holes on its outside, and ball bearings (331) are embedded inside the movable holes before movement.
6. The extended lever for removing bus tires according to claim 1, characterized in that: The sleeve (4) has a central hole (41) in the middle, and an annular slot (42) is provided on the side of the sleeve (4) near the nut sleeve (3). The annular slot (42) is located around the central hole (41), and protrusions (43) are fixedly installed on both sides of the outer wall of the sleeve (4).
7. The extended lever for removing bus tires according to claim 6, characterized in that: The annular slot (42) has a limiting groove (421) with an annular structure on the inner wall of the side away from the central hole (41).