A cable lock

Abstract

This utility model discloses a cable lock, including a lock body, a one-way locking mechanism, and a lock cylinder located within the lock body. The lock body is provided with a cable and a socket for the free end of the cable to be inserted and locked to the one-way locking mechanism. The lock body includes an outer cover and an inner frame. The one-way locking mechanism, lock cylinder, and cable are all fixed to the inner frame. One end of the outer cover has an opening, through which the inner frame is inserted into the outer cover. The side wall of the inner frame is fixed to the inner wall of the outer cover with an interference fit, or the side wall of the inner frame is provided with several anti-detachment strips in the circumferential direction. The height of the anti-detachment strips gradually decreases from the opening end towards the bottom of the outer cover and is fixed to the inner wall of the outer cover with an interference fit. This utility model has the advantages of simple structure, convenient assembly, and high security.

Description

Technical Field

[0001] This utility model relates to the field of locks, specifically to a cable lock. Background Technology

[0002] Cable locks typically use steel cable locks as flexible components, combined with a one-way locking mechanism for locking. Currently, the linkage structure between the one-way locking mechanism and the lock cylinder often occupies a large space in the lock body, making it difficult to reduce the size of the lock body.

[0003] For example, Chinese Patent CN201810440705.3 discloses a cable lock device, in which a lock core is provided inside the outer shell, an elliptical transmission component is snapped on the top of the lock core, a cam of the elliptical transmission component is welded to the upper left side of the elliptical transmission component, a lever is installed inside the outer shell through a lever shaft, a metal fixing seat is installed above the lever, the right end of the steel cable is snapped on the metal fixing seat, the left end is inserted from the steel cable inlet and protrudes from the steel cable outlet, the outer shell hook is welded to the upper interruption inside the outer shell, the rear ends of the first and second reverse tooth extrusion blocks are sleeved on the guide groove, and the upper pressure plate is placed below the spring.

[0004] It can be seen that in order to achieve the purpose of unlocking, the lock cylinder needs to work with the lever to push the pressure block, which occupies a lot of lock body space. In response to this problem, on July 20, 2024, the applicant simultaneously applied for a cable lock with application number 2024217244040 and a cable lock appearance design with patent number 2024304559743. The lock is an integral structure with internal components fixed by a cover plate. It is easy to disable the lock cylinder by destructively disassembling the cover plate. In addition, the overall weight of the lock body is relatively heavy and the material cost is high. Utility Model Content

[0005] Based on the above problems, the purpose of this utility model is to provide a cable lock that is simple in structure, easy to assemble, and highly secure.

[0006] To address the above problems, the following technical solution is provided: A cable lock, comprising a lock body and a one-way locking mechanism and a lock cylinder located within the lock body. The lock body is provided with a cable and a socket for inserting the free end of the cable and locking it in conjunction with the one-way locking mechanism. The lock body includes an outer cover and an inner frame. The one-way locking mechanism, the lock cylinder, and the cable are all fixed to the inner frame. One end of the outer cover has an opening, through which the inner frame is inserted into the outer cover. The side wall of the inner frame is fixed with the inner wall of the outer cover by an interference fit, or the side wall of the inner frame is provided with a plurality of anti-detachment strips in the circumferential direction. The height of the anti-detachment strips gradually decreases from the opening end towards the bottom of the outer cover and is fixed with an interference fit to the inner wall of the outer cover.

[0007] The present invention is further configured such that the inner frame includes a first bracket and a second bracket, the first bracket and the second bracket being interlocked with each other to fix the one-way locking mechanism and the lock cylinder; and the side walls of the first bracket and the second bracket are provided with anti-detachment strips.

[0008] The present invention is further configured such that the first bracket is located on the side of the inner cavity of the outer cover near the opening, and the second bracket is located on the side of the inner cavity of the outer cover near the bottom; the side wall of the outer cover is provided with an outer pin hole, and the side wall of the first bracket is provided with an inner pin hole; it also includes an anti-detachment pin passing through the outer pin hole and the inner pin hole.

[0009] The present invention is further configured such that a first through hole and a second through hole are provided at the bottom of the opening, and the cable passes through the first through hole and then through the second through hole, enters the inner frame through the insertion hole, and is adapted to the one-way locking mechanism.

[0010] The present invention is further configured such that a cover is provided inside the opening, the end of the inner frame facing the opening is recessed, and the cover is fixedly connected to the inner frame; the inner frame is also provided with a third through hole that is concentric with the second through hole; the cover is provided with a fourth through hole that is concentric with the third through hole.

[0011] The present invention is further configured such that: the rear end of the lock cylinder is provided with a drive gear driven by the lock cylinder; the one-way locking mechanism includes a rotating sleeve and a locking sleeve located inside the rotating sleeve; the rotating sleeve rotates by meshing a driven gear with the drive gear; the inner wall of the rotating sleeve is provided with a locking cone surface; the center of the locking sleeve is provided with a locking channel corresponding to the insertion hole for the cable to pass through; the outer wall of the locking sleeve is provided with a slide rail extending radially to the locking channel; the slide rail is provided with a locking slider that can slide along the radial direction of the locking sleeve; one side of the locking slider abuts against the locking cone surface, and the other side abuts against the cable inserted in the locking channel; the rotating sleeve uses a spiral inclined plane to adjust the axial relative position between itself and the locking sleeve to control the pushing of the locking cone surface against the locking slider; the virtual cone tip extending from the locking cone surface faces away from the insertion direction of the cable; the locking sleeve is provided with an elastic element for pushing the locking sleeve toward the virtual cone tip extending from the locking cone surface.

[0012] The present invention is further configured such that a sliding section is provided at one end of the locking sleeve facing the virtual cone tip extending from the locking cone surface, and a sliding groove is provided in the inner frame to slide in cooperation with the sliding section; the rotating sleeve rotates circumferentially relative to the locking sleeve while the locking sleeve moves axially relative to the rotating sleeve; the locking sleeve restricts its circumferential degree of freedom while retaining its axial degree of freedom through the sliding section and the sliding groove.

[0013] The present invention is further configured such that the outer wall of the locking sleeve is provided with two guide sliders spaced 180 degrees apart; the rotary sleeve is provided with two guide inclined surfaces or guide grooves spaced 180 degrees apart. When the rotary sleeve rotates, it pushes each guide slider through each guide inclined surface or guide groove to force the elastic element to compress and store force, while the locking sleeve slides away from the virtual cone tip extending from the locking cone surface to unlock the locking slider; the slide and the locking slider are both two that are spaced 180 degrees apart from each other.

[0014] The present invention is further configured such that the locking slider has serrations at the end facing the cable.

[0015] The present invention is further configured such that the inner frame and the outer cover are made of metal or plastic.

[0016] The beneficial effects of this utility model are:

[0017] 1. When the inner frame is installed into the outer cover, the inner frame and the outer cover are fixed with an interference fit, or the anti-detachment strip is in an interference fit with the inner wall of the outer cover to limit the separation of the two. It has the advantages of simple assembly and high safety.

[0018] 2. The first and second brackets can be left-right or top-bottom split structures. The one-way locking mechanism, lock cylinder, and cable are installed by the two brackets being fastened together. After the fastening is completed, they are fixed by the outer cover.

[0019] 3. The first bracket is further secured by an anti-detachment pin, which enhances safety.

[0020] 4. The cover is preferably made of stainless steel to cover up imperfections and improve aesthetics; the cover and the first bracket are fixed together by riveting to form a non-detachable connection; the third through hole runs through the entire inner frame, and a fourth through hole is provided for the cable to pass through.

[0021] 5. The lock cylinder is turned by the key, which rotates the drive gear, thereby driving the rotating sleeve to rotate through the driven gear. When the rotating sleeve rotates, the spiral inclined plane pushes the locking sleeve to generate axial displacement and compresses the elastic element, forcing the locking cone to release the pushing force on the locking slider, thus eliminating the squeezing force of the locking slider on the cable and unlocking the cable. When the cable is inserted, it generates an axial thrust on the locking slider and acts on the locking sleeve, forcing the locking sleeve to generate axial displacement and compressing the elastic element, and reducing the pushing force of the locking cone on the locking slider to achieve unobstructed insertion of the cable. When the cable is pulled out in the opposite direction, the pulling force of the cable and the elastic force of the elastic element push the locking sleeve, forcing it to move towards the tip of the locking cone, so that the locking slider has a gripping force on the cable and prevents slippage during locking, thus achieving anti-disengagement locking.

[0022] 6. The cross-section of the chute and sliding section is a non-rotational body shape to restrict the circumferential degree of freedom while allowing the sliding section to have axial degree of freedom;

[0023] 7. The inner frame is preferably made of plastic, which has the advantage of being lightweight, while the outer cover is made of metal, preferably stainless steel, which has the advantages of good corrosion resistance and beautiful appearance. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the inner skeleton of this utility model.

[0026] Figure 3 This is a schematic diagram of the second partial cross-sectional structure of the inner skeleton of this utility model.

[0027] Figure 4 This is a schematic diagram of the third partial cross-sectional structure of the inner skeleton of this utility model.

[0028] Figure 5 This is a three-dimensional structural diagram of the lock cylinder and one-way locking mechanism of this utility model.

[0029] Figure 6 This is an exploded three-dimensional structural diagram of the one-way locking mechanism of this utility model.

[0030] Figure 7 This is an exploded full-section three-dimensional structural diagram of the one-way locking mechanism of this utility model.

[0031] Figure 8 This is a schematic diagram of the exploded three-dimensional structure of the outer cover and inner skeleton of this utility model.

[0032] Figure 9 This is a partial cross-sectional three-dimensional structural diagram of the outer cover and inner frame of this utility model.

[0033] Figure 10 This is a partial cross-sectional three-dimensional structural diagram of the outer cover and inner frame of this utility model.

[0034] Figure 11 This is an exploded full-section three-dimensional structural diagram of the outer cover and inner frame of this utility model.

[0035] The labels in the diagram have the following meanings: 10-One-way locking mechanism; 11-Rotating sleeve; 111-Driven gear; 112-Locking cone surface; 113-Guide slope; 12-Locking sleeve; 121-Locking channel; 122-Slide rail; 123-Sliding section; 124-Guide slider; 13-Locking slider; 131-Sawtooth; 14-Elastic element; 20-Lock cylinder; 21-Driving gear; 30-Cable; 40-Outer cover; 41-Opening; 411-First through hole; 412-Second through hole; 42-Outer pin hole; 50-Inner frame; 51-Anti-detachment strip; 52-First bracket; 521-Inner pin hole; 53-Second bracket; 531-Slide groove; 54-Third through hole; 60-Anti-detachment pin; 70-Block; 71-Fourth through hole; 72-Keyhole. Detailed Implementation

[0036] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0037] refer to Figures 1 to 11 ,like Figures 1 to 11 The cable lock shown includes a lock body and a one-way locking mechanism 10 and a lock cylinder 20 located within the lock body. The lock body is provided with a cable 30 and a socket for inserting the free end of the cable 30 and locking it in conjunction with the one-way locking mechanism 10. The lock body includes an outer cover 40 and an inner frame 50. The one-way locking mechanism 10, the lock cylinder 20, and the cable 30 are all fixed to the inner frame 50. One end of the outer cover 40 is provided with an opening 41, through which the inner frame 50 is inserted into the outer cover 40. The side wall of the inner frame 50 is fixed to the inner wall of the outer cover 40 with an interference fit, or the side wall of the inner frame 50 is provided with a plurality of anti-detachment strips 51 in the circumferential direction. The height of the anti-detachment strips 51 gradually decreases from one end of the opening 41 towards the bottom of the outer cover 40 and is fixed to the inner wall of the outer cover 40 with an interference fit.

[0038] In the above structure, when the inner frame 50 is installed into the outer cover 40, the inner frame 50 and the outer cover 40 are fixed by an interference fit, or the anti-detachment strip 51 is in an interference fit with the inner wall of the outer cover 40 to restrict the separation of the two. It has the advantages of simple assembly and high safety.

[0039] In this embodiment, the inner frame 50 includes a first bracket 52 and a second bracket 53. The first bracket 52 and the second bracket 53 are interlocked to fix the one-way locking mechanism 10 and the lock cylinder 20. The side walls of the first bracket 52 and the second bracket 53 are provided with anti-detachment strips 51.

[0040] In the above structure, the first bracket 52 and the second bracket 53 can be a left-right split structure or a top-bottom split structure. The installation of the one-way locking mechanism 10, the lock cylinder 20 and the cable 30 can be achieved by the two fastening together. After the fastening is completed, it is fixed by the outer cover 40.

[0041] In this embodiment, the first bracket 52 is located on the side of the inner cavity of the outer cover 40 near the opening 41, and the second bracket 53 is located on the side of the inner cavity of the outer cover 40 near the bottom; the side wall of the outer cover 40 is provided with an outer pin hole 42, and the side wall of the first bracket 52 is provided with an inner pin hole 521; it also includes an anti-detachment pin 60 passing through the outer pin hole 42 and the inner pin hole 521.

[0042] In the above structure, the structure shown in the attached figure is a top-bottom split type. The first bracket 52 is further fixed by the anti-detachment pin 60, which further improves the safety.

[0043] In this embodiment, the bottom of the opening 41 is provided with a first through hole 411 and a second through hole 412. The cable 30 passes through the first through hole 411 and then through the second through hole 412, enters the inner frame 50 through the insertion hole, and is adapted to the one-way locking mechanism 10.

[0044] In the above structure, the keyhole is located on the first bracket 52.

[0045] In this embodiment, the opening 41 is provided with a cover 70, and the end of the inner frame 50 facing the opening 41 is recessed to provide installation space for the cover 70. The cover 70 is fixedly connected to the inner frame 50. The inner frame 50 is also provided with a through hole 54 that is concentric with the second through hole 412 (the third through hole 54 penetrates the first bracket 52 and the second bracket 53). The cover 70 is provided with a fourth through hole 71 that is concentric with the third through hole 54.

[0046] In the above structure, the cover 70 is preferably made of stainless steel to cover up imperfections and improve aesthetics; the cover 70 and the first bracket 52 are fixed together by riveting to form a non-detachable connection; the third through hole 54 penetrates the entire inner frame 50, and a fourth through hole 71 is provided so that the cable 30 can pass through and emerge; the cover 70 is also provided with a keyhole 72 corresponding to the lock cylinder 20.

[0047] In this embodiment, the rear end of the lock cylinder 20 is provided with a drive gear 21 driven by the lock cylinder 20; the one-way locking mechanism 10 includes a rotating sleeve 11 and a locking sleeve 12 located inside the rotating sleeve 11. The rotating sleeve 11 rotates by meshing with the drive gear 21 via a driven gear 111. The inner wall of the rotating sleeve 11 is provided with a locking cone surface 112; the center of the locking sleeve 12 is provided with a locking channel 121 corresponding to the insertion holes (i.e., the second through hole 412, the third through hole 54, and the fourth through hole 71) for the cable 30 to pass through. The outer wall of the locking sleeve 12 is provided with a slide that opens radially to the locking channel 121. 122, the slide 122 is provided with a locking slider 13 that can slide in the radial direction of the locking sleeve 12. One side of the locking slider 13 abuts against the locking cone surface 112, and the other side abuts against the cable 30 inserted in the locking channel 121. The rotating sleeve 11 uses a spiral inclined surface to adjust the axial relative position between itself and the locking sleeve 12 to control the pushing of the locking cone surface 112 against the locking slider 13. The virtual cone tip extending from the locking cone surface 112 faces away from the insertion direction of the cable 30. The locking sleeve 12 is provided with an elastic element 14 for pushing the locking sleeve 12 toward the virtual cone tip extending from the locking cone surface 112.

[0048] In the above structure, the lock cylinder 20 is turned by the key and the driving gear 21 is rotated, which in turn drives the rotating sleeve 11 to rotate through the driven gear 111. When the rotating sleeve 11 rotates, the spiral inclined surface pushes the locking sleeve 12 to generate axial displacement and compress the elastic element 14, forcing the locking cone surface 112 to release the pushing force on the locking slider 13, thereby eliminating the squeezing force of the locking slider 13 on the cable 30 and unlocking the cable 30. When the cable 30 is inserted, it generates an axial thrust on the locking slider 13 and acts on the locking sleeve 12, forcing the locking sleeve 12 to generate axial displacement and compress the elastic element 14, and reducing the pushing force of the locking cone surface 112 on the locking slider 13, so that the cable 30 can be inserted without obstruction. When the cable 30 is pulled out in the opposite direction, the pulling force of the cable 30 and the elastic force of the elastic element 14 push the locking sleeve 12, forcing it to move towards the cone tip of the locking cone surface 112, so that the locking slider 13 generates a gripping force on the cable 30, and avoids slippage during locking to achieve anti-disengagement locking.

[0049] In this embodiment, the locking sleeve 12 is provided with a sliding section 123 at one end facing the virtual cone tip of the locking cone surface 112, and the inner frame 50 is provided with a sliding groove 531 that slides with the sliding section 123. The sliding groove 531 is located on the second bracket 53. The rotating sleeve 11 rotates circumferentially relative to the locking sleeve 12 while the locking sleeve 12 moves axially relative to the rotating sleeve 11. The locking sleeve 12 restricts its circumferential degree of freedom while retaining its axial degree of freedom through the sliding section 123 and the sliding groove 513.

[0050] In the above structure, the slide groove 513 and the sliding section 123 have non-rotational body shapes to restrict the circumferential degree of freedom while allowing the sliding section 123 to have axial degree of freedom.

[0051] In this embodiment, the outer wall of the locking sleeve 12 is provided with two guide sliders 124 spaced 180 degrees apart; the rotating sleeve 11 is provided with two guide inclined surfaces 113 (located at the end face of the rotating sleeve 11) or guide grooves spaced 180 degrees apart. When the rotating sleeve 11 rotates, it pushes the guide sliders 124 through the guide inclined surfaces 113 or guide grooves to force the elastic element 14 to compress and store force, while the locking sleeve 12 slides away from the virtual cone tip extending from the locking cone surface 112 to unlock the locking slider 13; the slide rail 122 and the locking slider 13 are two that are spaced 180 degrees apart from each other.

[0052] The above structure can effectively improve stress stability.

[0053] In this embodiment, the locking slider 13 has a serration 131 at the end facing the cable 30.

[0054] In the above structure, the serrations 131 can exert a gripping force on the cable 30 and prevent slippage when locked, and can reduce friction on the cable 30 when it is inserted.

[0055] In this embodiment, the inner frame 50 and the outer cover 40 are made of metal or plastic.

[0056] In the above structure, the inner frame 50 is preferably made of plastic, which has the advantage of being lightweight, and the outer cover 40 is made of metal, preferably stainless steel, which has the advantages of good corrosion resistance and beautiful appearance.

[0057] In this embodiment, the hardness of the anti-slip strip 51 is greater than that of the outer cover 40, forcing the anti-slip strip 51 to embed into the inner wall of the outer cover 40.

[0058] In the above structure, the inner frame 50 is made of metal, and the outer cover 40 is made of plastic or stainless steel. The anti-slip strip 51 is used to interlock with the inner wall of the outer cover 40 to prevent slipping.

[0059] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A cable lock, comprising a lock body, a one-way locking mechanism located within the lock body, and a lock cylinder, wherein the lock body is provided with a cable and a socket for inserting the free end of the cable and locking it in conjunction with the one-way locking mechanism, characterized in that: The lock body includes an outer cover and an inner frame. The one-way locking mechanism, lock cylinder, and cable are all fixed to the inner frame. One end of the outer cover has an opening, through which the inner frame is inserted into the outer cover. The side wall of the inner frame is fixed to the inner wall of the outer cover with an interference fit, or the side wall of the inner frame is provided with a plurality of anti-detachment strips in the circumferential direction. The height of the anti-detachment strips gradually decreases from the opening end to the bottom of the outer cover and is fixed to the inner wall of the outer cover with an interference fit.

2. A cable lock according to claim 1, characterized in that: The inner frame includes a first bracket and a second bracket, which interlock with each other to fix the one-way locking mechanism and the lock cylinder; both the first bracket and the second bracket have anti-detachment strips on their side walls.

3. A cable lock according to claim 2, characterized in that: The first bracket is located on the side of the inner cavity of the outer cover near the opening, and the second bracket is located on the side of the inner cavity of the outer cover near the bottom; the side wall of the outer cover is provided with an outer pin hole, and the side wall of the first bracket is provided with an inner pin hole; it also includes an anti-detachment pin that passes through the outer pin hole and the inner pin hole.

4. A cable lock according to claim 1, characterized in that: The bottom of the opening is provided with a first through hole and a second through hole. The cable passes through the first through hole and then through the second through hole, enters the inner frame through the insertion hole, and is adapted to the one-way locking mechanism.

5. A cable lock according to claim 4, characterized in that: The opening is provided with a cover, and the end of the inner frame facing the opening is recessed. The cover is fixedly connected to the inner frame. The inner frame is also provided with a third through hole that is concentric with the second through hole. The cover is provided with a fourth through hole that is concentric with the third through hole.

6. A cable lock according to claim 1, characterized in that: The rear end of the lock cylinder is provided with a drive gear driven by the lock cylinder; the one-way locking mechanism includes a rotating sleeve and a locking sleeve located inside the rotating sleeve. The rotating sleeve rotates by meshing with the drive gear via a driven gear. The inner wall of the rotating sleeve is provided with a locking cone surface; the center of the locking sleeve is provided with a locking channel corresponding to the insertion hole for the cable to pass through. The outer wall of the locking sleeve is provided with a slide rail extending radially to the locking channel. The slide rail is provided with a locking slider that can slide along the radial direction of the locking sleeve. One side of the locking slider abuts against the locking cone surface, and the other side abuts against the cable inserted in the locking channel; the rotating sleeve uses a spiral inclined plane to adjust the axial relative position between itself and the locking sleeve to control the pushing of the locking cone surface against the locking slider; the virtual cone tip extending from the locking cone surface faces away from the insertion direction of the cable, and the locking sleeve is provided with an elastic element for pushing the locking sleeve towards the virtual cone tip extending from the locking cone surface.

7. A cable lock according to claim 6, characterized in that: The locking sleeve has a sliding section at one end facing the virtual cone tip extending from the locking cone surface, and the inner frame has a sliding groove that slides with the sliding section; the rotating sleeve rotates circumferentially relative to the locking sleeve while the locking sleeve moves axially relative to the rotating sleeve; the locking sleeve restricts its circumferential degree of freedom while retaining its axial degree of freedom through the sliding section and the sliding groove.

8. A cable lock according to claim 7, characterized in that: The outer wall of the locking sleeve is provided with two guide sliders spaced 180 degrees apart; the rotary sleeve is provided with two guide ramps or guide grooves spaced 180 degrees apart. When the rotary sleeve rotates, it pushes the guide sliders through the guide ramps or guide grooves to force the elastic element to compress and store force, while the locking sleeve slides away from the virtual cone tip extending from the locking cone surface to unlock the locking sliders; the slide and the locking slider are both two that are spaced 180 degrees apart from each other.

9. A cable lock according to claim 8, characterized in that: The locking slider has serrations on the end facing the cable.

10. A cable lock according to claim 1, characterized in that: The inner frame and outer cover are made of metal or plastic.

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