Special vehicle spare tire fixing device

Abstract

The utility model relates to a special vehicle spare tire fixing device which comprises a base fixed in a vehicle, fixing frames are arranged on the two sides of the upper surface of the base, the fixing frames are arranged in a C shape, guide columns are arranged on the inner sides of the upper plate section and the lower plate section of each fixing frame, each guide column is connected with two limiting baffles in a sliding mode, and the limiting baffles are arranged at intervals. A spare tire is placed between the two limiting baffles, a locking chain is arranged in the middle of the base, due to the arrangement of the movable limiting baffles, the placing space between the adjacent limiting baffles can be adjusted according to the specification of the spare tire, and meanwhile the vertical displacement of the spare tire is limited through the arrangement of the locking chain; and the stability of fixing the spare tire in the vehicle running process is improved, and the device is suitable for industrial production and has very high practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of special vehicle devices, and in particular relates to a spare tire fixing device for a special vehicle. Background Art

[0002] In the existing Chinese patent database, a patent entitled "A special vehicle spare tire storage and release device" is disclosed, with application number CN202221782373.5 and application date 2019-01-11. A special vehicle spare tire storage and release device comprises a bracket, a flip frame and a connecting frame, wherein the lower end of the flip frame is hinged to one end of the bracket through a first rotating shaft, and the upper end of the flip frame is hinged to one end of the connecting frame through a second rotating shaft, and a spare tire fixing mechanism is installed on the connecting frame, and a flip frame driving mechanism and a limit fixing beam are installed on the bracket in sequence, and the limit fixing beam is close to the flip frame and is vertically installed on the bracket to limit the flip frame. The advantages of the utility model are: a special vehicle spare tire storage and release device with a simple structure and small space occupation, with hydraulic power assistance, and a single person can place the spare tire in a vertical state on the ground, which greatly reduces the design and use costs of the vehicle.

[0003] In the prior art, special vehicles often need to carry a spare tire during use in case of emergency. The spare tire is prone to shaking during the operation of the vehicle. Therefore, this article aims to propose a spare tire fixing device for special vehicles, which can be suitable for tires of different specifications and can ensure its stability during the operation of the vehicle. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the prior art, special vehicles often need to carry a spare tire during use in case of emergency. The spare tire is prone to shaking during the operation of the vehicle. In order to improve its shortcomings, the utility model provides a spare tire fixing device for special vehicles.

[0005] In order to achieve the above object, the utility model is realized by the following technical solutions:

[0006] A spare tire fixing device for a special vehicle comprises a base fixed in the vehicle, fixing frames are arranged on both sides of the upper surface of the base, the fixing frames are arranged in a C-shape, guide columns are arranged on the inner sides of the upper plate section and the lower plate section of the fixing frame, and each guide column is slidably connected to two spaced limit baffles, the space between the two limit baffles is used to place the spare tire, and a locking chain is arranged in the middle of the base.

[0007] Compared with the prior art, the beneficial effects of the utility model are: due to the setting of the movable limit baffle, the placement space between adjacent limit baffles can be adjusted according to the specifications of the spare tire, and at the same time, the setting of the locking chain is utilized to limit the vertical displacement of the spare tire, thereby improving the stability of the spare tire fixation during vehicle driving. The device is suitable for industrial production and has strong practicality.

[0008] As a preferred solution, a waist-shaped groove is provided on the upper plate section of the fixing frame, the length direction of the waist-shaped groove is consistent with the axial direction of the guide column, and limiting bolts are inserted in the waist-shaped grooves on both sides of each limiting baffle. The free end of the limiting bolt is screwed with a locking nut, and the outer periphery of the locking nut is in contact with the outer surface of the corresponding limiting baffle to fix the spare tire.

[0009] As a preferred solution, an elastic pad is provided on the upper surface of the base, and a recessed portion that fits with the outer circumferential surface of the spare tire is provided on the upper surface of the elastic pad.

[0010] As a preferred solution, the locking chain located on one side of the base includes a lock buckle fixedly connected to the base, the lock buckle has a chain inserted in it, and a sub-swivel joint is provided at the free end of the chain. The locking chain located on the other side of the base includes a lock buckle fixedly connected to the base, the lock buckle has a chain inserted in it, and a female swivel joint cooperated with the sub-swivel joint is provided at the free end of the chain.

[0011] As a preferred solution, an arc-shaped concave surface that fits with the side surface of the spare tire is provided on the inner surface of the limit baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the figure: 1 base, 2 fixing frame, 201 upper plate section, 202 lower plate section, 3 guide column, 4 limit baffle,

[0014] 5 locking chain, 501 locking buckle, 502 locking chain, 503 sub-swivel joint, 504 female swivel joint, 6 limiting bolt, 7 locking nut, 8 elastic pad, 9 recessed part, 10 arc-shaped concave surface. DETAILED DESCRIPTION

[0015] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1As shown, a special vehicle spare tire fixing device includes a base 1 fixed in the vehicle, a fixing frame 2 is arranged on both sides of the upper surface of the base 1, and the fixing frame 2 is arranged in a C-shaped shape. A guide column 3 is arranged on the inner side of the upper plate section 201 and the lower plate section 202 of the fixing frame 2, and two spaced limit baffles 4 are slidably connected to each guide column 3. The space between the two limit baffles 4 is used to place the spare tire, and a locking chain 5 is arranged in the middle of the base 1. A waist-shaped groove is opened on the upper plate section 201 of the fixing frame 2, and the length direction of the waist-shaped groove is consistent with the axial direction of the guide column 3. The waist-shaped grooves on both sides of each limit baffle 4 are inserted with limit bolts 6, and the free end of the limit bolt 6 is screwed with a locking nut 7. The outer periphery of the locking nut 7 is set against the outer surface of the corresponding limit baffle 4 to fix the spare tire. An elastic pad 8 is arranged on the upper surface of the base 1, and a concave portion 9 is arranged on the upper surface of the elastic pad 8 to fit the outer circumferential surface of the spare tire. The locking chain 5 located on one side of the base 1 includes a lock buckle 501 fixedly connected to the base 1, a lock chain 502 is inserted into the lock buckle 501, and a sub-rotary joint 503 is provided at the free end of the lock chain 502. The locking chain 5 located on the other side of the base 1 includes a lock buckle 501 fixedly connected to the base 1, a lock chain 502 is inserted into the lock buckle 501, and a female swivel joint 504 is provided at the free end of the chain 502 to cooperate with the sub-swivel joint 503. The inner surface of the limit baffle 4 is provided with an arc-shaped concave surface 10 that fits the side of the spare tire.

[0017] When the utility model is working, the operator can freely move the limit baffle 4 axially along the guide column 3, so that the inner surfaces of the two limit baffles 4 respectively abut against the two end surfaces of the spare tire. After the position is adjusted, the limit bolt 6 is inserted into the waist-shaped groove, and the locking nut 7 is screwed on the free end of the limit bolt 6 to fix it, so that the outer periphery of the locking nut 7 abuts against the corresponding outer surface of the limit baffle 4, thereby completing the axial position fixation of the spare tire along the guide column 3, and the vertical position of the spare tire is connected with the female screw joint 504 through the sub-screw joint 503, wherein the sub-screw joint 503 is arranged in the shape of a screw rod, and the female screw joint 504 is arranged in the shape of an inner thread of a hollow tube, and the spare tire is fixed by the screwing depth of the sub-screw joint 503 and the female screw joint 504.

[0018] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A spare tire fixing device for a special vehicle, characterized in that: The invention comprises a base (1) fixed in a vehicle, wherein fixing frames (2) are arranged on both sides of the upper surface of the base (1), wherein the fixing frames (2) are arranged in a C-shape, wherein guide columns (3) are arranged inside the upper plate section (201) and the lower plate section (202) of the fixing frame (2), wherein each guide column (3) is slidably connected with two spaced limit baffles (4), wherein a spare tire is placed between the two limit baffles (4), and a locking chain (5) is arranged in the middle of the base (1).

2. A special vehicle spare tire fixing device according to claim 1, characterized in that: A waist-shaped groove is provided on the upper plate section (201) of the fixing frame (2), and the length direction of the waist-shaped groove is consistent with the axial direction of the guide column (3). Limiting bolts (6) are inserted into the waist-shaped grooves on both sides of each limiting baffle (4), and the free end of the limiting bolt (6) is screwed with a locking nut (7). The outer periphery of the locking nut (7) is set to abut against the outer surface of the corresponding limiting baffle (4) to fix the spare tire.

3. A special vehicle spare tire fixing device according to claim 2, characterized in that: An elastic pad (8) is provided on the upper surface of the base (1), and a recessed portion (9) is provided on the upper surface of the elastic pad (8) that fits the outer circumference of the spare tire.

4. A special vehicle spare tire fixing device according to claim 3, characterized in that: The locking chain (5) located on one side of the base (1) comprises a lock buckle (501) fixedly connected to the base (1), a lock chain (502) inserted into the lock buckle (501), and a sub-rotary joint (503) is provided at the free end of the lock chain (502); the locking chain (550) located on the other side of the base (1) comprises a lock buckle (501) fixedly connected to the base (1), a lock buckle (501) inserted into the lock buckle (502), and a female rotary joint (504) matched with the sub-rotary joint (503) is provided at the free end of the lock chain (502).

5. A special vehicle spare tire fixing device according to any one of claims 1 to 4, characterized in that: The inner surface of the limit baffle (4) is provided with an arc-shaped concave surface (10) which fits the side surface of the spare tire.

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