Cable lock

Abstract

The utility model provides a mooring rope lock which comprises a lock shell and a mooring rope, one end of the mooring rope is fixed on the lock shell, the lock shell is further provided with an insertion hole for the non-fixed end of the mooring rope to be inserted, a one-way locking mechanism located on the opening path of the insertion hole is arranged in the lock shell, and the non-fixed end of the mooring rope is inserted in the one-way locking mechanism through the insertion hole. A lock cylinder is further arranged in the lock shell, and a driving gear rotating along with the lock cylinder is arranged at the rear end of the lock cylinder. The one-way locking mechanism comprises a rotary sleeve and a locking sleeve located in the rotary sleeve, and a locking conical surface is arranged on the inner wall of the rotary sleeve; the center of the locking sleeve is provided with a locking channel which corresponds to the inserting hole and is used for a cable to penetrate through, the outer wall of the locking sleeve is provided with a sliding way which is formed in the radial direction of the locking sleeve, a locking sliding block is arranged in the sliding way, one end of the locking sliding block abuts against the locking conical face, and the other end of the locking sliding block abuts against the cable inserted into the locking channel. The rotating sleeve and the locking sleeve are driven by a driving gear to rotate mutually, and the axial relative position between the rotating sleeve and the locking sleeve is adjusted through the spiral inclined face so as to control pushing of the locking conical face to the locking sliding block. And a virtual conical tip extending from the locking conical surface is opposite to the insertion direction of the cable. The utility model has the advantages of small and compact volume, simple structure and reliable locking.

Description

Technical Field

[0001] The utility model relates to the field of locks, in particular to a cable lock. Background Art

[0002] Generally, a cable lock uses a steel cable as a flexible part and cooperates with a one-way locking mechanism for locking. The current linkage structure between the one-way locking mechanism and the lock core often occupies a large space in the lock body, making it difficult to reduce the volume of the lock body.

[0003] For example, a cable lock device disclosed in Chinese Patent CN201810440705.3 has a lock core arranged inside a housing. An elliptical transmission member is clamped above the lock core. An elliptical transmission member cam is welded on the upper left side of the elliptical transmission member. A dial block is installed inside the housing through a dial block shaft. A metal fixing seat is installed above the dial block. The right end of the steel cable is clamped on the metal fixing seat, and the left end is inserted from the steel cable inlet and extends out from the steel cable outlet. A housing hook is welded at the middle of the upper part inside the housing. The rear ends of the first reverse tooth pressing block and the second reverse tooth pressing block are sleeved on the guide groove. A spring is placed below the upper pressing plate.

[0004] It can be seen that to solve the unlocking purpose, the lock core needs to cooperate with the dial block to push the pressing block, occupying a large amount of space in the lock body. Content of the Utility Model

[0005] Based on the above problems, the purpose of the utility model is to provide a cable lock with a small and compact volume, a simple structure and reliable locking.

[0006] For the above problems, the following technical solution is provided: A cable lock includes a lock housing, a cable fixed at one end to the lock housing. The lock housing is further provided with a jack for inserting the non-fixed end of the cable. A one-way locking mechanism is arranged inside the lock housing on the path where the jack is opened. The non-fixed end of the cable is inserted into the one-way locking mechanism through the jack. A lock core is also arranged inside the lock housing. A driving gear that rotates following the lock core is arranged at the rear end of the lock core. The one-way locking mechanism includes a rotary sleeve and a locking sleeve located inside the rotary sleeve. The inner wall of the rotary sleeve is provided with a locking conical surface. A locking channel corresponding to the jack and for the cable to pass through is arranged at the center of the locking sleeve. A slideway is arranged on the outer wall of the locking sleeve in the radial direction. A locking slider is arranged in the slideway. One end of the locking slider abuts against the locking conical surface, and the other end abuts against the cable inserted into the locking channel. The rotary sleeve and the locking sleeve are driven to rotate relative to each other by the driving gear and the axial relative position between the two is adjusted by a spiral inclined plane to control the pushing of the locking conical surface against the locking slider. The virtual cone tip extended by the locking conical surface faces away from the insertion direction of the cable.

[0007] In the above structure, the lock core is adapted to the key to rotate the driving gear. The driving gear can be engaged with the rotary sleeve or the locking sleeve, so that one of the two follows the driving gear to rotate together, thereby generating a circumferential displacement between the rotary sleeve and the locking sleeve. At the same time of the circumferential displacement, the spiral inclined plane is used to generate an axial displacement between the two, so as to control the locking conical surface to push or release the contact with the locking slider, so that the locking slider contacts or separates from the cable, realizing the locking of the cable. Since the rotary sleeve and the locking sleeve are nested with each other, and the lock core is arranged side by side with the two, and is driven by the driving gear, the volume of the parts is greatly reduced while the overall transmission structure is simplified.

[0008] The utility model is further arranged such that the rotary sleeve is provided with a driven gear engaged with the driving gear; the locking sleeve is slidably matched with the lock case while its rotational freedom is restricted by the lock case.

[0009] In the above structure, the driven gear is preferably arranged on the rotary sleeve. When the locking sleeve is slidably matched with the lock case, its sliding freedom is in the axial direction of the locking sleeve. By restricting the rotational freedom of the locking sleeve, the locking sleeve is kept fixed when the rotary sleeve rotates, so as to achieve the purpose of the rotary sleeve rotating relative to the locking sleeve.

[0010] The utility model is further arranged such that the locking sleeve is provided with a locking elastic member for pushing the locking sleeve in the direction of the virtual conical tip extended by the locking conical surface.

[0011] In the above structure, the locking elastic member is preferably a spring, which can push the locking sleeve to move in the direction of the virtual conical tip extended by the locking conical surface, so as to urge the locking slider to always contact the locking conical surface and provide a thrust for the locking slider so that it can always keep in contact with the cable. When the cable moves in the insertion direction, the locking elastic member can be compressed by the locking slider and the locking sleeve, so that the locking slider slides towards the large diameter end of the locking conical surface to reduce the extrusion force on the cable to facilitate the insertion of the cable. When the cable moves in the direction opposite to the insertion direction, it drives the locking slider and the locking sleeve to move towards the small diameter end of the locking conical surface, and the extrusion of the locking conical surface on the locking slider is used to increase the holding force on the cable to prevent the cable from loosening. The locking elastic member is used to assist in pushing the locking sleeve and the locking slider towards the small diameter end of the locking conical surface to keep the cable in a locked state.

[0012] The utility model is further arranged such that one end of the locking sleeve facing the direction of the virtual conical tip extended by the locking conical surface is provided with a sliding section, and the lock case is provided with a sliding groove slidably matched with the sliding section.

[0013] In the above structure, the cross section of the sliding section is a non-rotary body, which is adapted to the sliding groove to realize axial sliding while restricting its circumferential rotation.

[0014] The present utility model is further configured such that the locking elastic member is located at one end of the locking sleeve facing away from the sliding section, one end of the locking elastic member abuts against the end of the locking sleeve, and the other end abuts against the lock housing.

[0015] The present utility model is further configured such that the number of the sliding channels is two or more, and the locking sliders are provided in the same number as the sliding channels; when there are multiple sliding channels, they are evenly distributed along the circumferential direction of the locking sleeve.

[0016] In the above structure, preferably two sliding channels can jointly squeeze the cable to offset the pushing force between them.

[0017] The present utility model is further configured such that an anti - detachment tooth is provided at one end of the locking slider facing the cable.

[0018] In the above structure, the anti - detachment tooth can improve the gripping force of the locking slider on the cable.

[0019] The present utility model is further configured such that a guiding slider is provided on the outer wall of the locking sleeve; the rotary sleeve is provided with a guiding inclined surface or a guiding groove arranged in a spiral shape, and the guiding slider is adapted to slide with the guiding inclined surface or the guiding groove.

[0020] In the above structure, the guiding slider cooperates with the guiding inclined surface to push the locking sleeve to compress the locking elastic member when the rotary sleeve rotates, and at the same time makes the locking slider move towards the large - diameter end of the locking conical surface to unlock the cable; when the rotary sleeve is provided with a guiding groove, the guiding slider can be replaced by a pin to achieve adaptation with the guiding groove.

[0021] The present utility model is further configured such that two guiding sliders are provided, which are spaced 180 degrees from each other along the circumferential direction of the locking sleeve; two guiding inclined surfaces or guiding grooves are provided, which are spaced 180 degrees from each other along the circumferential direction of the rotary sleeve.

[0022] In the above structure, the overall force stability can be improved.

[0023] The present utility model is further configured such that the jack is opened through the entire lock housing.

[0024] In the above structure, it is ensured that the cable can completely pass through the entire lock housing.

[0025] The beneficial effects of the present utility model are as follows: The lock core is adapted to the key to rotate the driving gear. The driving gear can mesh with the rotary sleeve or the locking sleeve, causing one of them to rotate together with the driving gear. As a result, a circumferential displacement is generated between the rotary sleeve and the locking sleeve. At the same time as the circumferential displacement, the spiral inclined plane is used to cause an axial displacement between the two, thereby controlling the locking conical surface to push or release the contact with the locking slider, enabling the locking slider to contact or separate from the cable, achieving the locking of the cable. Since the rotary sleeve and the locking sleeve are nested with each other, and the lock core is arranged side by side with both of them, and the transmission is carried out through the driving gear, the volume of the components is significantly reduced while the overall transmission structure is simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0027] Figure 2 It is a three-dimensional structural schematic diagram of the fully-sectioned lock case of the present utility model.

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the fully-sectioned rotary sleeve of the present utility model.

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the fully-sectioned locking sleeve of the present utility model.

[0030] Figure 5 It is a three-dimensional exploded structural schematic diagram of the lock core and the one-way locking mechanism of the present utility model.

[0031] Figure 6 It is a three-dimensional exploded fully-sectioned structural schematic diagram of the lock core and the one-way locking mechanism of the present utility model.

[0032] The meanings of the reference numerals in the drawings: 10 - lock case; 11 - cable; 12 - jack; 13 - chute; 20 - one-way locking mechanism; 21 - rotary sleeve; 211 - locking conical surface; 212 - driven gear; 213 - guiding inclined plane; 22 - locking sleeve; 221 - locking channel; 222 - slideway; 223 - sliding section; 224 - guiding slider; 23 - locking slider; 231 - anti-detaching tooth; 24 - locking elastic member; 30 - lock core; 31 - driving gear; a - virtual conical tip; b - insertion direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.

[0034] Refer to Figures 1 to 6 and, as Figures 1 to 6A cable lock as shown includes a lock housing 10, a cable 11 with one end fixed to the lock housing 10. The lock housing 10 is further provided with a jack 12 for inserting the non-fixed end of the cable 11. A one-way locking mechanism 20 is arranged in the lock housing 10 on the path where the jack 12 is opened. The non-fixed end of the cable 11 is inserted into the one-way locking mechanism 20 through the jack 12. A lock core 30 is also arranged in the lock housing 10, and a driving gear 31 that rotates with the lock core 30 is provided at the rear end of the lock core 30. The one-way locking mechanism 20 includes a rotary sleeve 21 and a locking sleeve 22 located inside the rotary sleeve 21. A locking conical surface 211 is provided on the inner wall of the rotary sleeve 21. A locking channel 221 corresponding to the jack 12 and for the cable 11 to pass through is provided at the center of the locking sleeve 22. A slideway 222 is provided on the outer wall of the locking sleeve 22 and opened in its radial direction. A locking slider 23 is arranged in the slideway 222. One end of the locking slider 23 abuts against the locking conical surface 211, and the other end abuts against the cable 11 inserted into the locking channel 221. The rotary sleeve 21 and the locking sleeve 22 are driven to rotate relative to each other by the driving gear 31, and the axial relative position between the two is adjusted by a spiral inclined surface to control the pushing of the locking conical surface 211 against the locking slider 23. The virtual conical tip a extended by the locking conical surface 211 faces away from the insertion direction b of the cable 11.

[0035] In the above structure, the lock core 30 is adapted to the key to rotate the driving gear 31. The driving gear 31 can mesh with the rotary sleeve 21 or the locking sleeve 22, so that one of them rotates together with the driving gear 31, thereby generating a circumferential displacement between the rotary sleeve 21 and the locking sleeve 22. At the same time of the circumferential displacement, the spiral inclined surface is cooperated to make the two generate an axial displacement, thereby controlling the pushing or releasing of the locking conical surface 211 against the locking slider 23, so that the locking slider 23 contacts or separates from the cable 11, realizing the locking of the cable 11. Since the rotary sleeve 21 and the locking sleeve 22 are nested with each other, and the lock core 30 is arranged side by side with the two, and is driven by the driving gear 31, while greatly reducing the volume of the components, the overall transmission structure is simplified.

[0036] In this embodiment, the rotary sleeve 21 is provided with a driven gear 212 meshing with the driving gear 31. The locking sleeve 22 is slidably matched with the lock housing 10 and its rotational freedom is restricted by the lock housing 10 at the same time.

[0037] In the above structure, the driven gear 212 is preferably arranged on the rotary sleeve 21. When the locking sleeve 22 is slidably matched with the lock housing 10, its sliding freedom is in the axial direction of the locking sleeve 22. By restricting the rotational freedom of the locking sleeve 22, the locking sleeve 22 is kept fixed when the rotary sleeve 21 rotates, so as to achieve the purpose of the rotary sleeve 21 rotating relative to the locking sleeve 22.

[0038] In this embodiment, a locking elastic member 24 is provided on the locking sleeve 22 for pushing the locking sleeve 22 in the direction of the virtual cone tip a extended by the locking conical surface 211.

[0039] In the above structure, the locking elastic member 24 is preferably a spring, which can push the locking sleeve 22 to move it in the direction of the virtual cone tip a extended by the locking conical surface 211, so as to make the locking slider 23 always contact with the locking conical surface 211 and provide a thrust force for the locking slider 23 so that it can always keep in contact with the cable 11; when the cable 11 moves in the insertion direction b, the locking elastic member 24 can be compressed through the locking slider 23 and the locking sleeve 22, so that the locking slider 23 slides towards the large-diameter end of the locking conical surface 211 to reduce the extrusion force on the cable 11 and promote the insertion of the cable 11; when the cable 11 moves in the direction opposite to the insertion direction b, it drives the locking slider 23 and the locking sleeve 22 to move towards the small-diameter end of the locking conical surface 211, and uses the extrusion of the locking conical surface 211 on the locking slider 23 to increase the holding force on the cable 11 to prevent the cable 11 from loosening. The locking elastic member 24 is used to assist in pushing the locking sleeve 22 and the locking slider 23 towards the small-diameter end of the locking conical surface 211 to keep the cable 11 in a locked state.

[0040] In this embodiment, one end of the locking sleeve 22 facing the virtual cone tip a extended by the locking conical surface 211 is provided with a sliding section 223, and the lock housing 10 is provided with a sliding groove 13 that slidably cooperates with the sliding section 223.

[0041] In the above structure, the cross section of the sliding section 223 is a non-rotating body, which is adapted to the sliding groove 13 to realize axial sliding while restricting its circumferential rotation.

[0042] In this embodiment, the locking elastic member 24 is located at one end of the locking sleeve 22 facing away from the sliding section 223. One end of the locking elastic member 24 abuts against the end of the locking sleeve 22, and the other end abuts against the lock housing 10.

[0043] In this embodiment, the number of the sliding grooves 222 is two or more, and the locking sliders 23 are provided in the same number as the sliding grooves 222; when there are multiple sliding grooves 222, they are evenly distributed along the circumferential direction of the locking sleeve 22.

[0044] In the above structure, the sliding grooves 222 are preferably two, which can jointly squeeze the cable 11 to offset the pushing force between them.

[0045] In this embodiment, an anti-loosening tooth 231 is provided at one end of the locking slider 23 facing the cable 11.

[0046] In the above structure, the anti-loosening tooth 231 can increase the grasping force of the locking slider 23 on the cable 11.

[0047] In this embodiment, a guiding slider 224 is provided on the outer wall of the locking sleeve 22; the rotating sleeve 21 is provided with a guiding inclined surface 213 or a guiding groove (not shown in the figure) arranged in a spiral shape, and the guiding slider 224 is adapted to slide with the guiding inclined surface 213 or the guiding groove (not shown in the figure).

[0048] In the above structure, the guiding slider 224 cooperates with the guiding inclined surface 213 to push the locking sleeve 22 to compress the locking elastic member 24 when the rotating sleeve 21 rotates, and at the same time moves the locking slider 23 towards the large-diameter end of the locking conical surface 211 to unlock the cable 11; when the rotating sleeve 21 is provided with a guiding groove (not shown in the figure), the guiding slider 224 can be replaced by a pin (not shown in the figure) to achieve adaptation with the guiding groove (not shown in the figure).

[0049] In this embodiment, two guiding sliders 224 are provided, and they are arranged at an interval of 180 degrees in the circumferential direction of the locking sleeve 22; two guiding inclined surfaces 213 or guiding grooves (not shown in the figure) are provided, and they are arranged at an interval of 180 degrees in the circumferential direction of the rotating sleeve 21.

[0050] In the above structure, the overall force-bearing stability can be improved.

[0051] In this embodiment, the jack 12 is opened through the entire lock shell 10.

[0052] In the above structure, it is ensured that the cable 11 can completely pass through the entire lock shell 10.

[0053] The beneficial effects of the present utility model are as follows: The lock core 30 is adapted to the key to rotate the driving gear 31. The driving gear 31 can be meshed with the rotating sleeve 21 or the locking sleeve 22, so that one of them rotates together with the driving gear 31, thereby generating a circumferential displacement between the rotating sleeve 21 and the locking sleeve 22. At the same time of the circumferential displacement, the spiral inclined surface is used to generate an axial displacement between the two, so as to control the locking conical surface 211 to push or release the contact with the locking slider 23, so that the locking slider 23 contacts or separates from the cable 11, realizing the locking of the cable 11; since the rotating sleeve 21 and the locking sleeve 22 are nested with each other, and the lock core 30 is arranged side by side with the two, and is driven by the driving gear 31, the volume of the components is greatly reduced while the overall transmission structure is simplified.

[0054] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made. These improvements and modifications made under the above assumptions should also be regarded as the protection scope of the present utility model.

Claims

1. A cable lock, comprising a lock housing, a cable having one end fixed to the lock housing, the lock housing further provided with a jack for inserting the non-fixed end of the cable, a one-way locking mechanism disposed in the lock housing along the path of the jack, and the non-fixed end of the cable being inserted into the one-way locking mechanism through the jack; the lock housing further provided with a lock core, characterized in that: A driving gear that rotates following the lock core is provided at the rear end of the lock core; the one-way locking mechanism includes a rotary sleeve and a locking sleeve located inside the rotary sleeve. The inner wall of the rotary sleeve is provided with a locking conical surface; a locking channel corresponding to the jack and used for the cable to pass through is provided at the center of the locking sleeve. A slideway is provided on the outer wall of the locking sleeve and opened in its radial direction. A locking slider is provided in the slideway. One end of the locking slider abuts against the locking conical surface, and the other end abuts against the cable inserted into the locking channel. The rotary sleeve and the locking sleeve are driven to rotate relative to each other by the driving gear and the axial relative position between the two is adjusted by using a spiral inclined plane to control the pushing of the locking conical surface against the locking slider; the virtual conical tip extended by the locking conical surface faces away from the insertion direction of the cable.

2. The cable lock according to claim 1, characterized in that: The rotary sleeve is provided with a driven gear meshing with the driving gear; while the locking sleeve is slidably matched with the lock housing, its rotational freedom is restricted by the lock housing.

3. A cable lock according to claim 2, characterized in that: The locking sleeve is provided with a locking elastic member for pushing the locking sleeve towards the virtual conical tip extended by the locking conical surface.

4. The cable lock according to claim 3, wherein: One end of the locking sleeve facing the virtual conical tip extended by the locking conical surface is provided with a sliding section, and the lock housing is provided with a sliding groove slidably matched with the sliding section.

5. A cable lock according to claim 4, characterized in that: The locking elastic member is located at one end of the locking sleeve facing away from the sliding section. One end of the locking elastic member abuts against the end of the locking sleeve, and the other end abuts against the lock housing.

6. The cable lock according to claim 1, characterized in that: The number of the slideways is two or more, and the locking sliders are provided in the same number as the slideways; when there are multiple slideways, they are evenly distributed along the circumferential direction of the locking sleeve.

7. A cable lock according to claim 1 or 6, characterized in that: An anti-detachment tooth is provided at one end of the locking slider facing the cable.

8. A cable lock according to claim 1 or 2 or 3 or 4 or 5, characterized in that: A guiding slider is provided on the outer wall of the locking sleeve; the rotary sleeve is provided with a guiding inclined plane or a guiding groove arranged in a spiral shape, and the guiding slider is slidably matched with the guiding inclined plane or the guiding groove.

9. The cable lock according to claim 8, characterized in that: Two guiding sliders are provided and are spaced 180 degrees from each other along the circumferential direction of the locking sleeve; two guiding inclined planes or guiding grooves are provided and are spaced 180 degrees from each other along the circumferential direction of the rotary sleeve.

10. A cable lock according to claim 1, characterized in that: The jack is opened through the entire lock housing.

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