Retracting device of tire antiskid chain

Abstract

The utility model discloses a contraction device of a tire antiskid chain, which comprises a rim, a tire sidewall arranged on the outer side of the rim, an antiskid chain arranged on the outer side of the tire sidewall, a connecting piece arranged on the antiskid chain, a tension bar arranged on the connecting piece, a port A and a port B respectively arranged at two ends of the tension bar, and a contraction device arranged on the antiskid chain. The retracting device comprises an A port, a shell, a rotating column, a movable shaft, a supporting arm, a pressing spring, a bumper, a movable rod, a blocking shifting piece, a rotating handle, a clamping groove and a B port. According to the anti-skid chain, the anti-skid chains on all the side faces are connected in series through elastic materials (such as springs and cow rubber bands) through the tension rods, then the two ends of each anti-skid chain are connected through the contraction devices, the port A and the port B are fixed to the upper end and the lower end of the rotating column, and the rotating column can be adjusted to adjust the tightness degree so as to adjust the tightness degree of the anti-skid chains; therefore, the chain is kept stable in the running process.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-skid chain retraction, in particular to a retraction device for a tire anti-skid chain. Background Art

[0002] In winter or in bad weather conditions, the road surface where vehicles are driving is prone to ice or snow. In order to ensure driving safety, many car owners will install anti-skid chains. However, there are some problems with traditional anti-skid chains during use, such as loose or over-tightened chains, which lead to unstable driving of the vehicle or damage to the tires. In addition, due to the different sizes of each tire, the anti-skid chain cannot play its maximum role. Therefore, a device that can adjust the tightness of the anti-skid chain is needed to solve these problems. Utility Model Content

[0003] The utility model aims to provide a contraction device for a tire anti-skid chain, which solves the problem of inconvenient adjustment of the tightness of the anti-skid chain.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a retraction device for a tire anti-skid chain, comprising a wheel rim, a tire sidewall is arranged on the outer side of the wheel rim, an anti-skid chain is arranged on the outer side of the tire sidewall, a connecting piece is arranged on the anti-skid chain, a tension rod is arranged on the connecting piece, an A port and a B port are respectively arranged at both ends of the tension rod, a retraction device is arranged on the anti-skid chain, and the retraction device comprises an A port, an outer shell, a rotating column, a movable shaft, a support arm, a compression spring, a safety rod, a movable rod, a blocking paddle, a rotating handle, a card slot, and a B port.

[0005] Preferably, the tension rod is composed of a plurality of retractable spring segments, each segment being clamped together. By designing the tension rod, the length of the tension rod can be adjusted as required to adapt to tires of different sizes and different road conditions.

[0006] Preferably, the rotating column is fixedly connected to the A port and the B port respectively, a rotating handle is fixedly connected to the top of the rotating column, a card slot is provided inside the rotating column, a blocking paddle is provided on the rotating column, a movable rod is provided at the left end of the blocking paddle, a support arm is provided at the left end of the movable rod, the support arm is movably connected to the housing through a movable shaft, and a compression spring is provided on the movable rod. By designing a retracting device, the retraction of the anti-skid chain is facilitated.

[0007] Preferably, the blocking paddle is engaged with the card slot, and the number of the card slots is multiple. By designing the engagement between the blocking paddle and the card slot, the rotating column can be limited.

[0008] Preferably, one end of the compression spring is fixedly connected to the housing, and the other end of the compression spring is fixedly connected to the movable rod. By designing the compression spring, the blocking paddle can only press tightly against the rotating column to play a fixing role.

[0009] Preferably, the upper end of the movable rod is fixedly connected with a safety rod, and the safety rod is slidably connected to the housing. By designing the safety rod, the blocking paddle can be gently lifted upward to restore the rotating column to its original state, making it convenient to disassemble the tension rod and the anti-skid chain.

[0010] The beneficial effects of the utility model are as follows:

[0011] The utility model uses elastic materials (such as springs, rubber bands, etc.) through a tension rod to connect all the anti-skid chains on the sides in series and then connects the two ends through a contraction device. Port A and port B are fixed at the upper and lower ends of a rotating column. The rotating column can be adjusted to adjust the tightness to adjust the tightness of the anti-skid chain, thereby ensuring that the chain remains stable during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 Schematic diagram of the contraction device.

[0014] In the figure: 1. tension rod; 2. anti-skid chain; 3. tire sidewall; 4. connecting piece; 5. retracting device; 6. rim; 7. A port; 8. outer shell; 9. rotating column; 10. movable shaft; 11. support arm; 12. compression spring; 13. safety rod; 14. movable rod; 15. blocking paddle; 16. rotating handle; 17. slot; 18. B port. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1 , Figure 2A retracting device for a tire anti-skid chain comprises a wheel rim 6, a tire sidewall 3 is arranged on the outer side of the wheel rim 6, an anti-skid chain 2 is arranged on the outer side of the tire sidewall 3, a connecting piece 4 is arranged on the anti-skid chain 2, a tension rod 1 is arranged on the connecting piece 4, the tension rod 1 is composed of a plurality of retractable spring segments, each segment is clamped, and by designing the tension rod 1, the tension rod 1 can adjust the length as needed to adapt to tires of different sizes and different road conditions, an A port 7 and a B port 18 are respectively arranged at both ends of the tension rod 1, a retracting device 5 is arranged on the anti-skid chain 2, and the retracting device 5 comprises an A port 7, a housing 8, a rotating column 9, a movable shaft 10, a support arm 11, a compression spring 12, a safety rod 13, an movable rod 14, a blocking paddle 15, a rotating handle 16, a card slot 17, and a B port 18.

[0017] See also Figure 1 , Figure 2 The rotating column 9 is fixedly connected to the A port 7 and the B port 18 respectively. The top of the rotating column 9 is fixedly connected with a rotating handle 16. A slot 17 is provided inside the rotating column 9. A blocking paddle 15 is provided on the rotating column 9. The blocking paddle 15 is engaged with the slot 17. The number of the slots 17 is multiple. By designing the engagement between the blocking paddle 15 and the slot 17, the rotating column 9 can be limited. A movable rod 14 is provided at the left end of the blocking paddle 15. A support arm 11 is provided at the left end of the movable rod 14. The support arm 11 is movably connected to the housing 8 through a movable shaft 10. The movable rod 14 is provided with a movable lever 14. A compression spring 12 is provided, one end of the compression spring 12 is fixedly connected to the outer shell 8, and the other end of the compression spring 12 is fixedly connected to the movable rod 14. By designing the compression spring 12, the blocking paddle 15 can only press the rotating column 9 tightly to play a fixing role. The upper end of the movable rod 14 is fixedly connected with a safety rod 13, and the safety rod 13 is slidably connected to the outer shell 8. By designing the safety rod 13, the blocking paddle 15 can be gently lifted upward to restore the rotating column 9 to its original state, making it convenient to disassemble the tension rod 1 and the anti-skid chain 2. By designing the retraction device 5, the retraction of the anti-skid chain 2 is convenient.

[0018] The specific implementation process of the utility model is as follows: when in use, the rotating column 9 is connected to an extended rotating handle 16, which can be manually rotated around the periphery of the device. One end of the rotating column 9 has a circle of card slots 17, and above the card slots 17 there is a blocking paddle 15 connected to the movable rod 14, and the movable rod 14 is connected to the support arm 11. The support arm 11 is connected to the housing 8 through a movable shaft 10, so that the support arm 11 can move up and down, and can drive the movable rod 14 and the blocking paddle 15 to move up and down, so that the card slot 17 on the rotating column 9 can be stuck in the blocking paddle 15, and the rotating The column 9 can only rotate clockwise. When the rotating column 9 rotates counterclockwise, it is stuck by the blocking paddle 15. A compression spring 12 is connected in the middle of the movable rod 14. The compression spring 12 provides a downward pulling force, forcing the blocking paddle 15 to press the rotating column 9 tightly, thereby playing a fixing role to prevent the blocking paddle 15 from falling off due to gravity when the wheel rotates. The rotating column 9 cannot tighten the tension rod 1. There is a safety lever 13 on the left side of the rotating column 9, which can be used to gently lift the blocking paddle 15 upwards to restore the rotating column 9 to its original state, making it convenient to disassemble the tension rod 1 and the anti-skid chain 2. When in use, insert the tension rod 1 into the anti-skid chain 2, connect all the anti-skid chains 2 in series, fix the A port 7 and B port 18 at both ends of the tension rod 1 on the rotating column 9, manually rotate the rotating handle 16 clockwise to shrink and adjust the length of the compression spring 12 to adjust the tightness to adjust the tightness of the anti-skid chain 2, and the blocking paddle 15 will firmly clamp the rotating column 9 in a fixed position through the tension of the compression spring 12. When the anti-skid chain 2 needs to be removed or replaced, you only need to lift the safety rod 13 upwards, and the blocking paddle 15 will be disengaged from the slot 17 of the rotating column 9 to release the anti-skid chain 2, which is convenient and efficient.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tire anti-skid chain retraction device, comprising a wheel rim (6), characterized in that: The outer side of the wheel rim (6) is provided with a tire sidewall (3), the outer side of the tire sidewall (3) is provided with an anti-skid chain (2), the anti-skid chain (2) is provided with a connecting piece (4), the connecting piece (4) is provided with a tension rod (1), the two ends of the tension rod (1) are respectively provided with an A port (7) and a B port (18), the anti-skid chain (2) is provided with a contraction device (5), the contraction device (5) comprises an A port (7), a housing (8), a rotating column (9), a movable shaft (10), a support arm (11), a compression spring (12), a safety rod (13), a movable rod (14), a blocking paddle (15), a rotating handle (16), a slot (17), and a B port (18).

2. A tire anti-skid chain retracting device according to claim 1, characterized in that: The tension rod (1) is composed of a plurality of retractable spring segments, and each segment is clamped together.

3. A tire anti-skid chain retracting device according to claim 1, characterized in that: The rotating column (9) is fixedly connected to the A port (7) and the B port (18) respectively; a rotating handle (16) is fixedly connected to the top of the rotating column (9); a card slot (17) is provided inside the rotating column (9); a blocking paddle (15) is provided on the rotating column (9); a movable rod (14) is provided at the left end of the blocking paddle (15); a supporting arm (11) is provided at the left end of the movable rod (14); the supporting arm (11) is movably connected to the housing (8) via a movable shaft (10); and a pressing spring (12) is provided on the movable rod (14).

4. A tire anti-skid chain retracting device according to claim 3, characterized in that: The blocking paddle (15) is engaged with a clamping slot (17), and the number of the clamping slots (17) is plural.

5. The tire anti-skid chain retracting device according to claim 3, characterized in that: One end of the compression spring (12) is fixedly connected to the housing (8), and the other end of the compression spring (12) is fixedly connected to the movable rod (14).

6. A tire anti-skid chain retracting device according to claim 3, characterized in that: The upper end of the movable rod (14) is fixedly connected to a safety rod (13), and the safety rod (13) is slidably connected to the housing (8).

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