Anti-skid chain locking device for wrench switch

Abstract

The embodiment of the utility model relates to the technical field and discloses an antiskid chain locking device for a wrench switch. The cable lock catch comprises a lock catch shell provided with a center shaft and a cable outlet; the rotating teeth are arranged on the central shaft in a sleeving manner; one end of the cable is fixed on the rotating teeth, and the other end penetrates out of the cable outlet; the hasp is fixedly connected with one end of the cable self-locking buckle; the limiting mechanism is connected with the rotating teeth and is configured to control the rotating teeth to move up and down in the axis direction of the central shaft; the wrench is assembled on the surface of the lock catch shell and can rotate around a preset first axis; wherein one surface of the rotating teeth is provided with first plane ratchets, and the inner surface of the lock catch shell is provided with second plane ratchets; the wrench is linked with the limiting mechanism; when the wrench is closed, the limiting mechanism releases the rotating teeth so that the first plane ratchets can be meshed with the second plane ratchets. When the wrench is opened, the limiting mechanism drives the rotating teeth to be away from the second plane ratchets, so that the first plane ratchets are separated from the second plane ratchets.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical lock catch technical field, especially a spanner switch antiskid chain locking device. BACKGROUND

[0002] Antiskid chain is the structure installed on the tire to improve the ground adhesion in rainy and snowy weather. Antiskid chain usually needs to be used in combination with the corresponding locking structure to tighten the antiskid chain to adapt to different sizes of tires. However, the existing locking structure has many deficiencies in daily use and operation process, and cannot well meet the application requirements of users.

[0003] For example, some existing locking structures are operated by multiple buttons, and the overall volume is relatively large, and the connecting device on the antiskid chain needs to be small and light.

[0004] Therefore, it is urgent to provide a suitable antiskid chain locking structure to effectively avoid the problems and defects of the existing locking device. SUMMARY

[0005] The utility model provides a spanner switch antiskid chain locking device, can solve at least a part of defects of existing antiskid chain locking structure.

[0006] In a first aspect, the utility model provides a spanner switch antiskid chain locking device. The spanner switch antiskid chain locking device comprises a lock catch shell, the lock catch shell is provided with a central shaft and a cable outlet, a rotating tooth, the rotating tooth is sleeved on the central shaft and can rotate around the central shaft, a cable, the cable is wound on the rotating tooth, one end is fixed on the rotating tooth, and the other end is from the lock catch shell and passes out through the cable outlet, a buckle, the buckle is fixedly connected with one end of the cable from the lock catch shell, a limiting mechanism, the limiting mechanism is connected with the rotating tooth and is configured to control the rotating tooth to move up and down along the axis direction of the central shaft, a spanner, the spanner is assembled on the surface of the lock catch shell and can rotate around a preset first axis, wherein one surface of the rotating tooth is provided with a first plane ratchet, and the inner surface of the lock catch shell is provided with a second plane ratchet matched with the first plane ratchet, the spanner is linked with the limiting mechanism, when the spanner is closed, the limiting mechanism releases the rotating tooth, so that the first plane ratchet and the second plane ratchet are engaged, when the spanner is opened, the limiting mechanism drives the rotating tooth away from the second plane ratchet, so that the first plane ratchet and the second plane ratchet are separated.

[0007] In some embodiments, the wrench comprises: a wrench body; a pressing protrusion, the pressing protrusion being located at two ends of the wrench body and configured to press the limiting mechanism to move the rotating tooth away from the second planar ratchet when the wrench is opened; a pair of rotating shafts, the rotating shafts extending outward from one end of the wrench body along the first axis direction; wherein the wrench is rotatably assembled on the lock housing through the pair of rotating shafts.

[0008] In some embodiments, the lock housing comprises: an upper housing, the upper housing being provided with a shaft hole matched with the rotating shaft; the upper housing is further provided with a receiving recess matched with the wrench body and configured to receive the wrench body when the wrench is closed; a lower housing, the lower housing being engaged with the upper housing to form an internal receiving space; and a fixing cover, the fixing cover being fixed on the surface of the upper housing and configured to limit the wrench from being separated from the upper housing.

[0009] In some embodiments, the limiting mechanism comprises: an elastic component, the elastic component being arranged between the rotating tooth and the lock housing and configured to drive the rotating tooth to move in a direction approaching the second planar ratchet; a pair of connecting components, the connecting components being assembled on the rotating tooth and linked with the pressing protrusion; wherein the elastic component drives the rotating tooth to move in a direction approaching the second planar ratchet to make the first planar ratchet engage with the second planar ratchet when the wrench is closed; the pressing protrusion drives the rotating tooth to move away from the second planar ratchet through the connecting components to make the first planar ratchet disengage from the second planar ratchet when the wrench is opened.

[0010] In some embodiments, further comprising: a rotating limiting mechanism, wherein another surface of the rotating tooth is provided with a plurality of rotating limiting teeth, the rotating limiting teeth being arranged along the circumferential direction of the rotating tooth; the rotating limiting teeth cooperate with the rotating limiting mechanism when the wrench is opened and are configured to limit the rotation of the rotating tooth in a second direction.

[0011] In some embodiments, the rotating tooth is provided with an opening allowing the cable to pass through; wherein one end of the cable forms a bulge after the cable passes through the opening, so that the end of the cable is fixed on the rotating tooth.

[0012] The wrench switch anti-skid chain locking device has the advantages that: a user can conveniently switch the different working states of the anti-skid chain locking structure through the operation of the wrench closing and the wrench opening, the anti-skid chain locking structure is in the unlocking state when the wrench is opened, and the cable is allowed to be pulled out, and the anti-skid chain locking structure is in the recycling state when the wrench is closed, and the cable is automatically recycled. BRIEF DESCRIPTION OF DRAWINGS

[0013] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which like numerals denote like elements in the several views. The drawings are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the embodiments.

[0014] Figure 1 Fig. 1 is a schematic view of the wrench switch anti-skid chain locking device according to an embodiment of the present utility model;

[0015] Figure 2 Fig. 2 is an exploded schematic view of the wrench switch anti-skid chain locking device according to an embodiment of the present utility model;

[0016] Figure 3 Fig. 3 is an exploded view of the wrench switch anti-skid chain locking device according to an embodiment of the present utility model;

[0017] Figure 4 Fig. 4 is a sectional view of the wrench switch anti-skid chain locking device according to an embodiment of the present utility model;

[0018] Figure 5 Fig. 5 is an exploded schematic view of the rotating tooth and the cable according to an embodiment of the present utility model;

[0019] Figure 6 Fig. 6 is a schematic view of the rotating tooth and the cable according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0020] The present utility model will be described in detail below with reference to specific embodiments. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present utility model.

[0021] It should be noted that, unless otherwise explicitly specified and limited, the terms "center", "longitudinal", "transverse", "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like used in the specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. The terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, or indirectly connected through an intermediate medium. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated; therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features; "multiple" means two or more; "and / or" includes any and all combinations of one or more related listed items. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0022] Figure 1 A schematic view of the wrench switch anti-slip chain locking device provided by the utility model embodiment. Figure 3 A schematic view of the wrench switch anti-slip chain locking device provided by the utility model embodiment. As shown in the figure, Figures 1 to 3 The anti-slip chain locking structure includes: a lock catch shell 10, a rotating tooth 20, a cable 30, a buckle 40, a limiting mechanism 50 and a wrench 60.

[0023] The lock catch shell 10 is the main frame structure of the entire locking structure. It is provided with a central shaft 101 and a cable outlet 102.

[0024] The rotating tooth 20 is sleeved on the central shaft 101 and is a component that can rotate around the central shaft 101. Specifically, an elastic member 70 can be arranged between the rotating tooth 20 and the central shaft 101. The elastic member 70 stores elastic potential energy and can automatically rotate the rotating tooth 20 in the first direction, having a tendency to recover the cable 30.

[0025] One surface of the rotating tooth 20 is provided with a first planar ratchet 21. Correspondingly, the inner surface of the lock catch shell (for example, the inner surface of the first shell) is provided with a second planar ratchet 22 matched with the first planar ratchet.

[0026] The cable 30 is wound around the ratchet. One end of the cable 30 is fixed to the ratchet 20, and the other end of the cable 30 is pulled out of the clasp housing 10 through the cable outlet 102. The end of the cable 30 pulled out of the clasp housing 10 is fixed to the clasp 40.

[0027] Specifically, as shown in Figure 5 and Figure 6 , the ratchet 20 can be provided with an opening 23 for allowing the cable 30 to pass through. In the actual assembly process, after the cable 30 passes through the opening 23, an enlarged portion 31 can be formed at one end of the cable 30 by any suitable type of means. At this time, the cable with the enlarged portion 31 cannot pass out of the smaller opening 23 again, thereby ensuring that one end of the cable is fixed to the ratchet.

[0028] The limiting mechanism 50 is a structural assembly that interfaces with the ratchet 20. Through the cooperation between one or more structural components, the limiting mechanism 50 can control the up-and-down movement of the ratchet along the axis of the central axis, thereby causing the first planar ratchet 21 and the second planar ratchet 22 to disengage or engage with each other.

[0029] Specifically, as shown in Figure 3 , the limiting mechanism 50 includes an elastic component 51 and a pair of connecting components 52.

[0030] The elastic component 51 is arranged between the ratchet 20 and the clasp housing 10, and is an elastic member for driving the ratchet 20 to move in the direction of approaching the second planar ratchet. By arranging the elastic component 51, the ratchet 20 has a movement tendency to keep the first planar ratchet and the second planar ratchet engaged with each other.

[0031] The connecting component 52 is a structural component that is assembled on the ratchet and has linkage with the extrusion protrusion. It is an intermediate structure that realizes the linkage of the two components, so that the position of the ratchet can change with the state of the wrench 60.

[0032] Further, the limiting mechanism 50 can also be provided with a spring 53 that cooperates with the connecting component 52. The spring 53 abuts against the connecting component 52 to enable the connecting component 52 to have the ability of automatic reset. When the wrench 60 is closed, it is automatically restored to the initial position.

[0033] In actual use, as shown in Figure 4 , when the wrench 60 is closed, the connecting component 52 is not subjected to the extrusion force from the wrench. At this time, the elastic component 51 can drive the ratchet 20 to move in the direction of approaching the second planar ratchet, so that the first planar ratchet and the second planar ratchet are engaged.

[0034] When the wrench is opened, the extrusion protrusion part can extrude the connecting part 52 to further drive the gear teeth away from the second planar ratchet teeth, so that the first planar ratchet teeth are separated from the second planar ratchet teeth.

[0035] The wrench 60 is a component assembled on the surface of the lock shell 10. It can rotate around the preset first axis to switch between the closed state and the open state, thereby controlling the working state of the anti-skid chain locking structure. The wrench 60 is linked with the limiting mechanism 50 to control the position of the gear teeth 20 in the lock shell 10.

[0036] In actual use, when the wrench is closed, the limiting mechanism 50 releases the gear teeth 20, and the first planar ratchet teeth of the gear teeth 20 are engaged with the second planar ratchet teeth of the lock shell 10 to limit the rotation of the gear teeth 20 in the first direction, so that the cable cannot be pulled out.

[0037] Please continue to refer to Figure 2 When the wrench is rotated in the direction shown in the figure around the first axis to the open state, the limiting mechanism 50 is linked to drive the gear teeth 20 away from the second planar ratchet teeth, so that the first planar ratchet teeth are separated from the second planar ratchet teeth. At this time, the gear teeth 20 can rotate in the first direction, and the cable can be pulled out.

[0038] In some embodiments, as Figure 2 shown, the wrench 60 includes a wrench body 61, an extrusion protrusion part 62, and a rotating shaft 63.

[0039] The wrench body 61 is the main structure of the wrench. It can be roughly in the shape of a semicircular arc. The extrusion protrusion part 62 is located at the two ends of the semicircular arc-shaped wrench body and is a part that is relatively swollen at the end. When the wrench is opened, the extrusion protrusion part 62 can extrude the limiting mechanism to make the gear teeth away from the second planar ratchet teeth. When the wrench is closed, the angle of the extrusion protrusion part 62 changes, and the limiting mechanism is no longer extruded.

[0040] The rotating shaft 63 and the extrusion protrusion part 62 are arranged in pairs. The rotating shaft 63 extends outward along the first axis from one end of the wrench body to enable the wrench to rotate and be assembled on the lock shell.

[0041] Specifically, please continue to refer to Figure 2 The lock shell can include an upper shell 11, a lower shell 12, and a fixed cover 13.

[0042] The upper shell 11 is provided with an axis hole 103 matched with the rotating shaft. The axis hole 103 has a size matched with the rotating shaft 63 and can be used to accommodate the rotating shaft.

[0043] The upper shell 11 is further provided with a receiving recess 104 which is adapted to the wrench body. Thus, when the wrench is closed, the wrench body 61 is substantially received in the receiving recess 104 and does not protrude from the surface of the lock shell, so as to facilitate the user's holding and operation.

[0044] The lower shell 12 is engaged with the upper shell 11 to enclose an internal receiving space. In some embodiments, the upper shell 11 and the lower shell 12 are fixedly connected by a plurality of fixed rivet columns to form the receiving space. Of course, one-piece molding or other suitable structural designs can also be used, which will not be described here.

[0045] The fixed cover 13 is a cover plate fixed on the surface of the upper shell 11 for limiting the wrench from being detached from the upper shell 11. It can be of any suitable type of shape and size as needed, and is locked and fixed on the upper shell 11 by a suitable means to ensure that the wrench cannot be detached from the lock shell 10.

[0046] In the actual assembly process, the shaft 63 of one side of the wrench 60 can be first assembled and received into the corresponding shaft hole 103, and then the other shaft 63 is assembled into the corresponding shaft hole 103 by using the elastic deformation capability of the wrench 60. Finally, after the wrench is installed, the fixed cover 13 is locked and fixed to the upper shell 11 to limit the wrench 60 from being detached from the lock shell 10.

[0047] In some embodiments, as shown in Figure 3 the wrench switch anti-slip chain locking device further comprises a rotation limiting mechanism 81. Accordingly, as shown in Figure 5 the rotation limiting teeth 82 are arranged on the other surface of the rotation tooth 20 away from the second plane ratchet.

[0048] The rotation limiting teeth 82 are arranged along the circumferential direction of the rotation tooth, and cooperate with the rotation limiting mechanism 81 to enable the rotation tooth 20 to rotate only in the first direction and not in the second direction when the wrench is opened, thereby avoiding automatic recovery of the cable.

[0049] In actual use, the rotation limiting teeth 82 are inclined teeth inclined in a certain direction. The inclined teeth cooperate with the inclined surface of the rotation limiting mechanism 81, and when the rotation tooth 20 rotates in the first direction, the inclined surface and the inclined teeth are in contact, driving the inclined teeth to pass the rotation limiting mechanism and not limiting the rotation of the rotation tooth 20. The rotation limiting mechanism 81 is provided with a spring to drive the rotation limiting mechanism 81 to automatically reset to the protruding position. When the rotation tooth 20 moves in the second direction, the inclined teeth will abut against the rotation limiting mechanism 81, and at this time, the inclined teeth cannot pass the rotation limiting mechanism, thereby limiting the rotation of the rotation tooth 20.

[0050] It should be noted that one or more structural components disclosed in the above embodiments can be reduced or added according to actual needs to provide corresponding functions or technical effects. The above structural components are not mutually exclusive or associated, and can be arbitrarily combined to form multiple different embodiments.

[0051] The above is a further detailed description of the present application in combination with specific / preferred embodiments, and cannot be considered as limiting the specific implementation of the present application to these descriptions. For those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and these all belong to the protection scope of the present application.

Claims

1. A wrench switch anti-skid chain locking device, characterized in that: include: Lock housing; The lock housing is provided with a central axis and a cable outlet; Rotating gear; the rotating gear is sleeved on the central axis and can rotate around the central axis; The cable is wound around the rotating tooth, one end of the cable is fixed to the rotating tooth, and the other end passes through the cable outlet and out of the lock housing; Buckle; the buckle is fixedly connected to the end of the cable passing through the lock shell; The limiting mechanism is connected to the rotating gear and is configured to: control the rotating gear to move up and down along the axis of the central axis; The wrench is mounted on the surface of the lock housing and can rotate around a preset first axis; Wherein, one surface of the rotating tooth is provided with a first planar ratchet, and the inner surface of the lock housing is provided with a second planar ratchet matched with the first planar ratchet; the wrench is linked with the limiting mechanism; When the wrench is closed, the limiting mechanism releases the rotating teeth to allow the first planar ratchet teeth to engage with the second planar ratchet teeth; When the wrench is opened, the limiting mechanism drives the rotating tooth to move away from the second planar ratchet, so that the first planar ratchet is disengaged from the second planar ratchet.

2. The wrench switch anti-skid chain locking device according to claim 1, characterized in that: The wrench comprises: Wrench body; Extrusion protrusions; the extrusion protrusions are located at two ends of the wrench body and are configured to: when the wrench is opened, squeeze the limit mechanism to move the rotating tooth away from the second planar ratchet; A pair of rotating shafts; the rotating shafts extend outward from one end of the wrench body along the first axis direction; Wherein, the wrench is rotatably assembled on the lock housing through the pair of rotating shafts.

3. The wrench switch anti-skid chain locking device according to claim 2, characterized in that: The lock housing comprises: The upper shell is provided with an axial hole adapted to the rotating shaft; the upper shell is also provided with a receiving recess adapted to the wrench body, and is configured to accommodate the wrench body when the wrench is closed; The lower shell is engaged with the upper shell to form an internal accommodating space; and The fixed cover is fixed to the surface of the upper shell and is configured to limit the wrench from detaching from the upper shell.

4. The wrench switch anti-skid chain locking device according to claim 2, characterized in that: The limiting mechanism includes: Elastic component; the elastic component is arranged between the rotating tooth and the lock housing, driving the rotating tooth to move in a direction close to the second planar ratchet; A pair of connecting parts; the connecting parts are assembled on the rotating teeth and linked with the extrusion protrusion; Wherein, when the wrench is closed, the elastic component drives the rotating tooth to move in a direction close to the second planar ratchet tooth, so that the first planar ratchet tooth engages with the second planar ratchet tooth; When the wrench is opened, the extrusion protrusion drives the rotating tooth away from the second planar ratchet through the connecting component, so that the first planar ratchet is disengaged from the second planar ratchet.

5. The wrench switch anti-skid chain locking device according to claim 1, characterized in that: Also includes: Rotation limiting mechanism; Wherein, a plurality of rotation limiting teeth are provided on the other surface of the rotating tooth; the plurality of rotation limiting teeth are arranged along the circumferential direction of the rotating tooth; When the wrench is opened, a plurality of the rotation limiting teeth cooperate with the rotation limiting mechanism and are configured to limit the rotation of the rotating teeth along the second direction.

6. The wrench switch anti-skid chain locking device according to claim 1, characterized in that: The rotating tooth is provided with an opening for allowing the cable to pass through; After the cable passes through the opening, an enlarged portion is formed at one end of the cable so that the one end of the cable is fixed on the rotating tooth.

Images