A locking device for a vehicle anti-skid chain

Abstract

The utility model relates to antiskid chain locker technical field, specifically disclose a kind of automobile antiskid chain locker, including shell, vortex-type coil spring, rotary ratchet, opening key, first clamping strip and second clamping strip, vortex-type coil spring is fixed in the inside of shell, rotary ratchet is connected with vortex-type coil spring, rotary ratchet is equipped with the steel wire rope that winds up, first clamping strip is connected in the inside of shell, one end of first clamping strip and opening key abut, second clamping strip is rotatably connected with the opening key, torsion spring is equipped between second clamping strip and opening key, after pressing opening key, opening key below and first clamping strip abut, so that first clamping strip is separated from rotary ratchet, and then steel wire rope can be pulled, the locker in the technical scheme of the utility model effectively replaces original chain locking mode, easy to install, the driving state of antiskid chain is automatically locked during driving process, chain does not fall off, effectively increase the antiskid chain performance and the safety performance of vehicle during use process.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-skid chain locking devices, and specifically discloses an automotive anti-skid chain locking device. Background Technology

[0002] The main locking method of existing snow chains is chain tension locking. This method can loosen during driving, causing the chain to fall off and requiring manual adjustment after getting off the vehicle. Installation is difficult and inconvenient for infrequent users. Furthermore, drivers often don't notice when the chain locking mechanism loosens during driving, leading to the snow chain falling off and damaging the vehicle. Utility Model Content

[0003] This utility model addresses the shortcomings of the prior art by providing an automotive anti-skid chain locker.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows:

[0005] This utility model provides an automotive anti-skid chain locking device, comprising:

[0006] case;

[0007] A spiral coil spring, the spiral coil spring being fixed inside the housing;

[0008] A rotating ratchet is connected to the spiral spring, and the rotating ratchet is provided with a coiled steel wire rope;

[0009] Power button;

[0010] A first locking strip and a second locking strip are provided. The first locking strip is connected to the inside of the housing, and one end of the first locking strip abuts against the opening button. The second locking strip is rotatably connected to the opening button, and a torsion spring is provided between the second locking strip and the opening button.

[0011] Furthermore, the locking device also includes a locking key, a sliding push rod is provided below the locking key, a second return spring is provided between the sliding push rod and the housing, an inclined block is provided on the sliding push rod, and the side of the locking key that is in contact with the inclined block is an inclined surface, and the opening key is provided with a groove that matches the sliding push rod.

[0012] Furthermore, one end of the wire rope extends outward from the housing, and the extended end of the wire rope is connected to a telescopic head. At least one set of fixed heads is also provided on the outside of the housing. The locking device is connected to the vehicle anti-skid chain through the telescopic head and the fixed head.

[0013] Furthermore, one end of the first card bar is provided with a pressure rod, and the first card bar abuts against the opening key through the pressure rod.

[0014] Furthermore, the opening button is provided with a torsion spring mounting groove, and the torsion spring is disposed in the torsion spring mounting groove and connected to the opening button and the second retaining strip.

[0015] Furthermore, a third reset spring and a fourth reset spring are respectively provided below the opening key and the locking key.

[0016] Furthermore, a first return spring is provided between the first locking bar and the housing, the first return spring ensuring that one side of the first locking bar is pressed against the rotating ratchet.

[0017] The beneficial effects of this utility model are as follows: This technical solution provides an automotive anti-skid chain locker, including a housing, a spiral spring, a rotating ratchet, an opening key, a first locking bar, and a second locking bar. The spiral spring is fixed inside the housing, and the rotating ratchet is connected to the spiral spring. A coiled steel wire rope is provided on the rotating ratchet. The first locking bar is connected inside the housing, and one end of the first locking bar abuts against the opening key. The second locking bar is rotatably connected to the opening key, and a torsion spring is provided between the second locking bar and the opening key. When the opening key is pressed, the bottom of the opening key abuts against the first locking bar, causing the first locking bar to disengage from the rotating ratchet, thereby pulling the steel wire rope. The locker in this technical solution effectively replaces the original chain locking method, is easy to install, and automatically locks during the driving process when the anti-skid chain is in motion, preventing the chain from falling off. During use, it effectively increases the performance of the anti-skid chain and the safety performance of the vehicle. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the opening key and locking key in this utility model;

[0022] Figure 4 This is an exploded view of the power button in this utility model.

[0023] The attached diagram is labeled as follows: 1-Housing, 2-Opening key, 21-First locking bar top block, 22-Card slot, 3-Locking key, 31-Beveled surface, 4-Telescopic head, 5-Fixing head, 6-Wire rope, 7-Rotating ratchet, 8-Whirlwind spring, 9-First locking bar, 91-Pressure rod, 10-Second locking bar, 11-Torsion spring mounting slot, 12-First return spring, 13-Second return spring, 14-Third return spring, 15-Fourth return spring, 16-Sliding top rod, 161-Beveled block, 17-Torsion spring. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Refer to the instruction manual appendix Figure 1-4 As shown, a car anti-skid chain locker includes a housing 1, a spiral spring 8, a rotating ratchet 7, an opening key 2, a first locking bar 9, and a second locking bar 10. The spiral spring 8 is fixed inside the housing 1. The rotating ratchet 7 is connected to the spiral spring 8 and has a coiled steel wire rope 6 on it. The first locking bar 9 is connected inside the housing 1, and one end of the first locking bar 9 abuts against the opening key 2. The second locking bar 10 is rotatably connected to the opening key 2. A torsion spring 17 is provided between the second locking bar 10 and the opening key 2. When the opening key 2 is pressed, the bottom of the opening key 2 abuts against the first locking bar 9, causing the first locking bar 9 to disengage from the rotating ratchet 7, and the second locking bar 10 to press down against the rotating ratchet 7. This design prevents the rotating ratchet 7 from resetting due to the tension of the spiral spring 8, which in turn pulls the steel cable 6 for retraction. When the user presses the release button 2 and pulls the steel cable 6, the user's pulling force ensures that the torsion spring 17 of the release button 2 retracts, causing the second locking bar 10 to disengage from the rotating ratchet 7, thus ensuring that the rotating ratchet 7 rotates. After the user releases the steel cable 6, it will not retract inward. The locking device in this technical solution effectively replaces the original chain locking method, is easy to install, and will automatically lock during the driving process when the anti-skid chain is in motion, preventing the chain from falling off. This effectively increases the performance of the anti-skid chain and the safety performance of the vehicle.

[0026] In a preferred embodiment of this invention, the locking device further includes a locking key 3. A sliding push rod 16 is provided below the locking key 3. A second return spring 13 is provided between the sliding push rod 16 and the housing 1. The second return spring 13 provides a pushing force for the sliding push rod 16 to move to one side. An inclined block 161 is provided on the sliding push rod 16. The side of the locking key 3 that is in contact with the inclined block 161 is an inclined surface 31. The opening key 2 is provided with a slot 22 that matches the sliding push rod 16. When the locking key 3 is pressed, the locking key 3 moves down and pushes the inclined block 161 and the sliding push rod 16 connected to the inclined block 161 to move to one side of the second return spring 13 through the inclined surface 31. This causes the sliding push rod 16 to disengage from the slot 22 on the opening key, and the opening key 2 moves up automatically, thereby completing the locking of the locking device.

[0027] In a preferred embodiment of this invention, one end of the wire rope 6 extends outward from the housing 1, and the extended end of the wire rope 6 is connected to a telescopic head 4. At least one set of fixing heads 5 is also provided on the outside of the housing 1. The locking device is connected to the vehicle anti-skid chain through the telescopic head 4 and the fixing head 5.

[0028] In a preferred embodiment of this invention, one end of the first card strip 9 is provided with a pressure rod 91. The first card strip 9 abuts against the opening key 2 through the pressure rod 91. The abutting action through the pressure rod 91 can extend the force-bearing lever, making pressing easier.

[0029] In a preferred embodiment of this invention, the opening key 2 is provided with a torsion spring mounting groove 11, and the torsion spring 17 is disposed in the torsion spring mounting groove 11 and connected to the opening key 2 and the second retaining strip 10.

[0030] In a preferred embodiment of this invention, a third reset spring 14 and a fourth reset spring 15 are respectively provided below the opening key 2 and the locking key 3, so that the opening key 2 and the locking key 3 can be automatically reset when not subjected to external force.

[0031] In addition, a first return spring 12 is provided between the first locking bar 9 and the housing 1. The first return spring 12 ensures that one side of the first locking bar 9 is pressed against the rotating ratchet 7, thereby completing the locking.

[0032] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0033] This technical solution provides an automotive anti-skid chain locker, including a housing, a spiral spring, a rotating ratchet, an opening key, a first locking bar, and a second locking bar. The spiral spring is fixed inside the housing, and the rotating ratchet is connected to the spiral spring. A coiled steel wire rope is mounted on the rotating ratchet. The first locking bar is connected inside the housing, with one end of the first locking bar abutting against the opening key. The second locking bar is rotatably connected to the opening key, and a torsion spring is provided between the second locking bar and the opening key. When the opening key is pressed, the bottom of the opening key abuts against the first locking bar, causing the first locking bar to disengage from the rotating ratchet, thereby allowing the steel wire rope to be pulled. The locker in this technical solution effectively replaces the original chain locking method, is easy to install, and automatically locks during driving when the anti-skid chain is in motion, preventing the chain from falling off. This effectively increases the performance of the anti-skid chain and the safety performance of the vehicle.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0036] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "lateral, longitudinal, vertical, horizontal" and "top, bottom" are generally based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; in addition, the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0037] It should be understood that when a component is referred to as being "on" or "connected" to another component, it can be directly on or directly connected to that other component, or it can be an indirect connection through an inserting component. Conversely, when a component is referred to as being "directly" on or "directly connected" to another component, there is no inserting component between them.

[0038] Furthermore, it should be noted that in the description of this utility model, the use of terms such as "first" and "second" to define the components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A car anti-skid chain locking device, characterized in that, include: case; A spiral coil spring, the spiral coil spring being fixed inside the housing; A rotating ratchet is connected to the spiral spring, and the rotating ratchet is provided with a coiled steel wire rope; Power button; A first locking strip and a second locking strip are provided. The first locking strip is connected to the inside of the housing, and one end of the first locking strip abuts against the opening button. The second locking strip is rotatably connected to the opening button, and a torsion spring is provided between the second locking strip and the opening button.

2. The automotive anti-skid chain locking device according to claim 1, characterized in that, The locking device also includes a locking key, a sliding push rod is provided below the locking key, a second return spring is provided between the sliding push rod and the housing, an inclined block is provided on the sliding push rod, and the side of the locking key that is in contact with the inclined block is an inclined surface, and the opening key is provided with a groove that matches the sliding push rod.

3. The automotive anti-skid chain locking device according to claim 2, characterized in that, One end of the wire rope extends outward from the housing, and the extended end of the wire rope is connected to a telescopic head. At least one set of fixed heads is also provided on the outside of the housing. The locking device is connected to the car anti-skid chain through the telescopic head and the fixed head.

4. The automotive anti-skid chain locking device according to claim 3, characterized in that, One end of the first card bar is provided with a pressure rod, and the first card bar abuts against the opening key through the pressure rod.

5. A car anti-skid chain locking device according to claim 4, characterized in that, The opening button is provided with a torsion spring mounting groove, and the torsion spring is disposed in the torsion spring mounting groove and connected to the opening button and the second retaining strip.

6. A car anti-skid chain locking device according to claim 5, characterized in that, A third reset spring and a fourth reset spring are respectively provided below the open button and the lock button.

7. A car anti-skid chain locking device according to any one of claims 1-6, characterized in that, A first return spring is provided between the first locking bar and the housing to ensure that one side of the first locking bar is pressed against the rotating ratchet.

Images