Locking device and equipment

Abstract

The utility model relates to the field of anti-theft knobs, in particular to a locking device and equipment, and the locking device comprises a shell, a locking assembly and a fastener, a containing cavity is formed in the shell, the locking assembly comprises a gear shaft, an abutting piece and an elastic piece which are arranged in the containing cavity, the gear shaft and the abutting piece are rotationally matched with the shell, and the abutting piece is matched with the gear shaft in an abutting mode through the elastic piece; when the abutting piece abuts against the gear shaft, the shell can only drive the gear shaft to rotate in the abutting direction, and when the shell rotates in the non-abutting direction, the shell idles relative to the gear shaft. One of the abutting direction and the non-abutting direction is clockwise, and the other one is anticlockwise; one end of the fastener is connected with the gear shaft, and the other end extends out of the accommodating cavity. The technical problem that an existing locking device is poor in anti-theft effect is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of anti-theft knob, especially to a locking device and equipment. BACKGROUND

[0002] In daily life and industrial production, threaded fastener devices are widely used in products such as doors and windows, vehicles, mechanical equipment, etc. due to their simple structure and reliable connection. However, with the development of technology and changes in the social environment, higher requirements are placed on the safety performance of threaded fastener devices. Traditional threaded fasteners, such as bolts and nuts, have good fastening effects, but have obvious deficiencies in terms of theft prevention. Criminals can easily disassemble these fasteners through simple operations, thereby stealing or damaging related equipment. SUMMARY

[0003] To solve the problem of poor anti-theft effect of existing locking devices, the utility model provides a locking device and equipment.

[0004] The technical problem of the utility model is solved by providing a locking device, which includes a shell, a locking assembly, and a fastener. The shell has a receiving cavity inside. The locking assembly includes a gear shaft, a resisting piece, and a resilient piece arranged in the receiving cavity. The gear shaft and the resisting piece are rotationally connected with the shell, and the resisting piece is rotationally connected with the gear shaft through the resilient piece. When the resisting piece resists the gear shaft, the shell can only drive the gear shaft to rotate in the resisting direction. When the shell rotates in the non-resisting direction, the shell idles relative to the gear shaft. One of the resisting direction and the non-resisting direction is clockwise, and the other is counterclockwise. One end of the fastener is connected with the gear shaft, and the other end extends out of the receiving cavity.

[0005] Preferably, the resisting piece has a first clamping structure and a second clamping structure at its two ends, respectively. The first clamping structure and the second clamping structure resist the gear shaft in different directions, respectively.

[0006] Preferably, the resisting piece has a first limiting groove and a second limiting groove on the side close to the resilient piece. When the first limiting groove is connected with the resilient piece, the first clamping structure resists the gear shaft. When the second limiting groove is connected with the resilient piece, the second clamping structure resists the gear shaft.

[0007] Preferably, the shell has a first limiting hole on its upper end, which is connected with the outside. The upper end surface of the resisting piece has a limiting column, which is rotationally connected with the first limiting hole. When the limiting column is rotated to resist the first limiting hole, the resilient piece is connected with the first limiting groove or the second limiting groove.

[0008] Preferably, the upper surface of the first limiting hole is higher than the upper surface of the limiting column, and the upper surface of the limiting column is provided with a polygonal rotating structure.

[0009] Preferably, the shell is provided with a second limiting hole at least one end along the gear shaft in the axial direction, and the gear shaft is rotationally matched with the shell through the second limiting hole.

[0010] Preferably, the gear shaft has a hollow channel, and the hollow channel is at least partially provided with an internal thread, and the fastener is provided with an external thread matched with the internal thread in the length direction.

[0011] Preferably, the fastener is partially accommodated in the hollow channel, the inner wall of the hollow channel is provided with a first limiting structure, and the fastener is provided with a second limiting structure matched with the first limiting structure at one end of the hollow channel.

[0012] Preferably, the inner wall of the shell is provided with a third limiting groove, and the elastic member is fixedly matched with the shell through the third limiting groove.

[0013] Another scheme for solving the technical problem of the utility model is to provide a device with an anti-theft function, which comprises a first connecting component, a second connecting component and the locking device as claimed in any one of the above, and the first connecting component and the second connecting component are detachably connected through the locking device.

[0014] Compared with the prior art, the locking device and the device have the following advantages:

[0015] 1. In the locking device provided by the embodiment of the utility model, the abutting member is matched with the gear shaft in a specific direction through the elastic member, so that when the abutting member rotates in the abutting direction, the gear shaft is driven to rotate synchronously through the matching of the abutting member and the gear shaft, and when the abutting member rotates in the non-abutting direction, the gear shaft drives the abutting member to deflect, so that the abutting member slides along the outer periphery of the gear shaft, the abutting member idles relative to the gear shaft, that is, the abutting member cannot drive the gear shaft to rotate in the non-abutting direction.

[0016] Through this design, it can be avoided that an outsider twists out the locking device from the external device through the shell, and then steals or destroys the related device, causing the property loss of the user.

[0017] 2. In the locking device provided by the embodiment of the utility model, the first clamping structure and the second clamping structure abut the gear shaft in different directions, so that when the different clamping structures are matched with the gear shaft, the gear shaft is driven to rotate in different directions, and cannot rotate in the opposite direction, so that the fastener has two matching modes of locking and detachability with the external device, which guarantees the good anti-theft effect of the locking device, and also enables the locking device to be detached from the related device when necessary.

[0018] 3. The locking device provided by the embodiment of the utility model, under the action of the elastic member, the first clamping structure or the second clamping structure keeps the meshing state with the gear shaft, avoids the disengagement of the abutting member from the gear shaft under the influence of external force, and further causes the abutting member to be unable to drive the gear shaft to rotate, secondly, the elastic member elastically cooperates with the abutting member, so that the abutting member can be reset to the abutting state with the gear shaft after idling relative to the gear shaft, thereby enabling the abutting member to continue to drive the gear shaft to rotate.

[0019] 4. The locking device provided by the embodiment of the utility model, the limiting column is partially accommodated in the first limiting hole in communication with the outside, and the user can operate the limiting column through the first limiting hole to control the cooperation of the first clamping structure or the second clamping structure with the gear shaft, so that the abutting member can drive the gear shaft to rotate in the preset direction to realize the disassembly or locking of the fastener, when the limiting column rotates to abut against the first limiting hole, the elastic member just cooperates with the first limiting slot or the second limiting slot, through the design, the user can quickly and accurately rotate the abutting member to the cooperation state with the elastic member, and the use experience of the user is improved.

[0020] 5. The locking device provided by the embodiment of the utility model, the limiting column is completely accommodated in the first limiting hole, that is, the limiting column is not exposed to the outside, so that an outsider cannot directly rotate the limiting column from the outside of the shell without using a tool to contact the current locking mode of the locking device, secondly, the rotating structure on the limiting column is polygonal, that is, a tool adapted to the shape of the rotating structure is needed to drive the abutting member to rotate to contact the locking mode of the locking device, through the design, the abutting member is prevented from being driven to rotate by a tool collected at hand by the outsider, thereby realizing good anti-theft effect.

[0021] 6. The locking device provided by the embodiment of the utility model, the movement of the gear shaft in the horizontal direction and the vertical direction is limited through the second limiting hole, so that the gear shaft can only rotate along the established central axis, and further ensure that the abutting member can always keep the abutting state with the gear shaft when rotating, and the stability of the cooperation of the abutting member with the gear shaft is improved.

[0022] 7. The locking device provided by the embodiment of the utility model, the fastener is threadedly connected with the gear shaft, so that the fastener can be driven to rotate when the gear shaft rotates, and further enables the fastener exposed to the hollow passage portion to be locked or separated from the external equipment.

[0023] 8. The locking device provided by the embodiment of the utility model, the connection of the fastener with the gear shaft is ensured through the cooperation of the first limiting structure and the second limiting structure, and the disengagement of the fastener from the gear shaft caused by excessive rotation of the gear shaft is avoided.

[0024] 9. The locking device provided by the embodiment of the utility model has the advantages that the elastic member is fixed relative to the shell through the third limiting groove, and when the elastic member cooperates with the abutting member, the abutting member can also keep the corresponding positioning state, so that the abutting member can better drive the gear shaft to rotate.

[0025] 10. The device provided by the embodiment of the utility model has the anti-theft function, and comprises a first connecting component, a second connecting component and the locking device as claimed in any one of the above, the first connecting component and the second connecting component are detachably connected through the locking device.

[0026] The locking device has the same beneficial effects as the locking device as claimed in any one of the above, and will not be described herein. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to the drawings for the ordinary skilled in the art without paying the creative labor.

[0028] Figure 1 is a structure schematic view of the locking device provided by the first embodiment of the utility model.

[0029] Figure 2 is a sectional view of the locking device provided by the first embodiment of the utility model.

[0030] Figure 3 is an internal structure schematic view of the locking device provided by the first embodiment of the utility model Figure 1 .

[0031] Figure 4 is an internal structure schematic view of the locking device provided by the first embodiment of the utility model Figure 2 .

[0032] Figure 5 is a structure schematic view of the abutting member provided by the first embodiment of the utility model.

[0033] Figure 6 is a structure schematic view of the shell provided by the first embodiment of the utility model Figure 1 .

[0034] Figure 7 is a structure schematic view of the shell provided by the first embodiment of the utility model Figure 2 .

[0035] Figure 8 is a structure schematic view of the gear shaft provided by the first embodiment of the utility model.

[0036] Figure 9 is a sectional view of a gear shaft provided by the first embodiment of the utility model.

[0037] Figure 10 is a structure block diagram of the equipment provided by the second embodiment of the utility model.

[0038] The drawing mark explanation is as follows:

[0039] 100, equipment;

[0040] 10, locking device; 20, first connecting part; 30, second connecting part;

[0041] 1, shell; 11, containing cavity; 12, first limiting hole; 13, second limiting hole; 14, third limiting slot; 15, baffle;

[0042] 2, locking assembly; 21, gear shaft; 211, hollow channel; 212, first limiting structure; 213, internal thread; 214, gear part; 215, rotating part; 22, abutting piece; 221, first clamping structure; 222, second clamping structure; 223, first limiting slot; 224, second limiting slot; 225, limiting column; 226, rotating structure; 23, elastic piece;

[0043] 3, fastener; 31, external thread; 32, second limiting structure.

CONCRETE EMBODIMENT

[0044] In order to make the utility model's purpose, technical scheme and advantage more clearly, the following is combined with the drawing and the embodiment, and the utility model is further detailedly explained.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0045] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and the like as used herein are used for explanation purposes only.

[0046] In the utility model, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to necessarily have a specific orientation, or to be constructed and operated in a specific orientation.

[0047] In addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the utility model can be understood according to the specific circumstances.

[0048] In addition, the terms "mounting", "setting", "providing", "connecting", "connecting" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0049] Please refer to Figures 1-4 The utility model provides a locking device 10, including casing 1, locking assembly 2 and fastener 3, the inside of casing 1 has a accommodating cavity 11, locking assembly 2 includes the gear shaft 21, the abutting piece 22 and the elastic piece 23 of being arranged in accommodating cavity 11, gear shaft 21 and abutting piece 22 are rotationally fitted with casing 1, and abutting piece 22 is abutted with gear shaft 21 through elastic piece 23, when abutting piece 22 abuts gear shaft 21, casing 1 can only drive gear shaft 21 to rotate along the abutting direction, when casing 1 rotates along the non-abutting direction, casing 1 idles relative to gear shaft 21, the abutting direction and the non-abutting direction one is clockwise, and the other is counterclockwise, and one end of fastener 3 is connected with gear shaft 21, and the other end extends to the outside of accommodating cavity 11.

[0050] Specifically, the maximum rotating radius of the abutting piece 22 is greater than the minimum distance from the rotating shaft of the abutting piece 22 to the outer surface of the gear shaft 21, so that when the abutting piece 22 rotates in the abutting direction, the abutting piece 22 is subjected to the force of the gear shaft 21, thereby being clamped with the gear shaft 21, so that the abutting piece 22 can smoothly drive the gear shaft 21 to rotate, and when the abutting piece 22 rotates in the non-abutting direction, the abutting piece 22 is separated from the gear shaft 21 under the action of the gear shaft 21, so that the abutting piece 22 cannot drive the gear shaft 21 to rotate in the direction.

[0051] It should be noted that the abutting direction of the present embodiment refers to the direction in which the abutting member 22 rotates from the line connecting the rotation axes of the gear shaft 21 and the abutting member 22 to the position where the gear shaft 21 and the abutting member 22 abut; the non-abutting direction refers to the direction opposite to the abutting direction.

[0052] It can be understood that the abutting member 22 is abutted with the gear shaft 21 in a certain direction by the elastic member 23, so that when the abutting member 22 rotates in the abutting direction, the gear shaft 21 is driven to rotate synchronously by the abutting member 22 through the abutting cooperation of the abutting member 22 and the gear shaft 21, and when the abutting member 22 rotates in the non-abutting direction, the gear shaft 21 drives the abutting member 22 to deflect so that the abutting member 22 slides along the outer periphery of the gear shaft 21, the abutting member 22 idles relative to the gear shaft 21, that is, the abutting member 22 cannot drive the gear shaft 21 to rotate in the non-abutting direction.

[0053] Through this design, it can be avoided that an outsider twists the locking device 10 out of the external equipment through the shell 1, and then steals or destroys the related equipment, causing the user's property loss.

[0054] Alternatively, the fastener 3 can be a bolt, a screw, a stud, or other mechanical connection structure that can be fastened or disassembled by rotating, which is not limited here.

[0055] Specifically, the locking device 10 provided by the present embodiment is used for locking of a threaded fastening device or a rotationally cooperating mechanical structure, and specific application scenarios include but are not limited to clamping devices, door and window fixation, installation of mechanical equipment, fixation of wheels and seats in vehicles, and the like.

[0056] Further, please refer to Figure 5 , the abutting member 22 is provided with a first clamping structure 221 and a second clamping structure 222 at both ends in the length direction, respectively, and the first clamping structure 221 and the second clamping structure 222 abut the gear shaft 21 in different directions.

[0057] It should be noted that when the first clamping structure 221 and the second clamping structure 222 abut the gear shaft 21, the abutting points are located on both sides of the line connecting the rotation axes of the gear shaft 21 and the abutting member 22, that is, when the first clamping structure 221 abuts the gear shaft 21, the abutting direction defined by the present embodiment is opposite to the abutting direction when the second clamping structure 222 abuts the gear shaft 21.

[0058] As a feasible implementation manner, the first clamping structure 221 and the second clamping structure 222 are toothed structures that can engage with the gear shaft 21.

[0059] It can be understood that the first clamping structure 221 and the second clamping structure 222 abut against the gear shaft 21 in different directions, so that when the different clamping structures are matched with the gear shaft 21, the gear shaft 21 can be driven to rotate in different directions and cannot rotate in the opposite direction, thereby realizing the two matching modes of the fastener 3 with the external equipment, i.e., locking and detachable, which ensures good anti-theft effect of the locking device 10 and also enables the locking device 10 to be detached from the related equipment when necessary.

[0060] Further, the abutting piece 22 is provided with a first limiting groove 223 and a second limiting groove 224 on the side close to the elastic piece 23, when the first limiting groove 223 is matched with the elastic piece 23, the first clamping structure 221 abuts against the gear shaft 21, and when the second limiting groove 224 is matched with the elastic piece 23, the second clamping structure 222 abuts against the gear shaft 21.

[0061] Optionally, the elastic piece 23 is spherical on the abutting end of the abutting piece 22.

[0062] It should be noted that the first limiting groove 223 and the second limiting groove 224 are arranged side by side on the side of the abutting piece 22 close to the elastic piece 23, when the first limiting groove 223 is matched with the elastic piece 23, the elastic piece 23 abuts against the end of the first limiting groove 223 away from the second limiting groove 224, and there is a gap between the end of the first limiting groove 223 close to the second limiting groove 224 and the elastic piece 23.

[0063] It can be understood that when the abutting piece 22 rotates in the abutting direction, the end of the first limiting groove 223 away from the second limiting groove 224 has a tendency to rotate towards the elastic piece 23 under the action of the gear shaft 21, and through this design, the abutting piece 22 can more stably drive the gear shaft 21 to rotate; conversely, when the abutting piece 22 rotates in the non-abutting direction, the end of the first limiting groove 223 close to the second limiting groove 224 rotates towards the elastic piece 23 under the action of the gear shaft 21 to make the abutting piece 22 disengage from the gear shaft 21, and through this design, the abutting piece 22 can more smoothly rotate to make the abutting piece 22 disengage from the gear shaft 21.

[0064] As an implementation manner, when the second limiting groove 224 is matched with the elastic piece 23, the elastic piece 23 abuts against the end of the second limiting groove 224 away from the first limiting groove 223, and there is a gap between the end of the second limiting groove 224 close to the first limiting groove 223 and the elastic piece 23.

[0065] It can be understood that the matching mode of the second limiting groove 224 and the elastic piece 23 is the same as that of the first limiting groove 223 and the elastic piece 23, and the corresponding beneficial effects are also the same.

[0066] Understandably, the abutting piece 22 is under the action of the elastic piece 23, so that the first clamping structure 221 or the second clamping structure 222 remains in engagement with the gear shaft 21, avoiding the abutting piece 22 from being disengaged from the gear shaft 21 under the influence of external force, thereby causing the abutting piece 22 to fail to drive the gear shaft 21 to rotate; secondly, the elastic piece 23 is in elastic cooperation with the abutting piece 22, so that the abutting piece 22 can be reset to the abutting state with the gear shaft 21 after idling relative to the gear shaft 21, so that the abutting piece 22 can continue to drive the gear shaft 21 to rotate.

[0067] Further, please refer back to Figure 1 and Figure 3 , the upper end of the shell 1 is provided with a first limiting hole 12 in communication with the outside, and the upper end face of the abutting piece 22 is provided with a limiting column 225 in rotational cooperation with the first limiting hole 12, and the limiting column 225 is rotated to abut against the first limiting hole 12, and the elastic piece 23 cooperates with the first limiting slot 223 or the second limiting slot 224.

[0068] Optionally, the abutting piece 22 and the limiting column 225 are integrally formed.

[0069] As a feasible implementation manner, the first limiting hole 12 and the limiting column 225 are shape-matched, and are not circular, and the rotatable angle of the limiting column 225 and the first limiting hole 12 is less than 360 degrees, that is, when the limiting column 225 is rotated clockwise or counterclockwise to a certain angle in the first limiting hole 12, it will abut against the inner wall of the first limiting hole 12 and cannot continue to rotate.

[0070] Specifically, when the limiting column 225 is rotated clockwise to abut against the first limiting hole 12, the elastic piece 23 is just in abutting cooperation with the first limiting slot 223, so that the first clamping structure 221 is engaged with the gear shaft 21, and the abutting piece 22 can stably drive the gear shaft 21 to rotate in a predetermined direction.

[0071] It should be understood that when the limiting column 225 is rotated counterclockwise to abut against the first limiting hole 12, the elastic piece 23 is just in abutting cooperation with the second limiting slot 224, so that the second clamping structure 222 is engaged with the gear shaft 21, and the abutting piece 22 can stably drive the gear shaft 21 to rotate in another predetermined direction.

[0072] Through the design, the user can accurately control the rotation angle of the abutting piece 22 without observing the rotation state of the abutting piece 22, so that the abutting piece 22 can be engaged with the gear shaft 21, thereby smoothly driving the rotation of the gear shaft 21.

[0073] Specifically, through the abutment of the limiting column 225 and the first limiting hole 12 in different directions, the locking device 10 is in a disassembly mode or a theft-proof mode.

[0074] It can be understood that the limiting column 225 is partially accommodated in the first limiting hole 12 which is in communication with the outside, and a user can operate the limiting column 225 through the first limiting hole 12, so as to control the first clamping structure 221 or the second clamping structure 222 to cooperate with the gear shaft 21, so that the abutting piece 22 can drive the gear shaft 21 to rotate in a preset direction, so as to realize the disassembly or locking of the fastener 3.

[0075] Specifically, when the limiting column 225 rotates to abut against the first limiting hole 12, the elastic piece 23 just cooperates with the first limiting slot 223 or the second limiting slot 224, through this design, the user can quickly and accurately rotate the abutting piece 22 to the cooperating state with the elastic piece 23, and the user experience is improved.

[0076] Further, the upper surface of the first limiting hole 12 is higher than the upper surface of the limiting column 225, and the upper surface of the limiting column 225 is provided with a polygonal rotating structure 226.

[0077] It should be noted that the upper surface of the first limiting hole 12 is higher than the upper surface of the limiting column 225, that is, the limiting column 225 is completely accommodated in the first limiting hole 12 and has no part exposed to the outside.

[0078] Through this design, an outsider cannot operate the limiting column 225 without damaging the shell 1, so as to switch the disassembly mode or the anti-theft mode of the locking device 10, and the anti-theft effect of the locking device 10 is improved.

[0079] It should be further noted that the rotating structure 226 can be a polygonal protrusion or a groove provided on the upper surface of the limiting column 225.

[0080] Alternatively, the rotating structure 226 can be triangular, quadrangular, hexagonal, or other irregular shapes, which can be set according to actual conditions.

[0081] As a feasible implementation manner, the rotating structure 226 is a hexagonal groove matched with an internal hexagonal wrench, that is, a corresponding type of internal hexagonal wrench is needed to operate the rotating structure 226, so that the abutting piece 22 is rotated by a corresponding angle, so that the locking device 10 is in the disassembly mode or the anti-theft mode.

[0082] It can be understood that the rotating structure 226 on the limiting column 225 is polygonal, which makes it necessary to use a specific tool matched with the shape of the rotating structure 226 to cooperate with the rotating structure 226 to rotate the abutting piece 22, and then make the locking device 10 in the disassembly mode or the anti-theft mode.

[0083] Through the design, the person outside can effectively avoid using tools or only through the tool collected nearby to rotate the limiting column 225 to switch the disassembly mode or the anti-theft mode of the locking device 10, and good anti-theft effect is ensured.

[0084] Further, please refer to Figure 6 and Figure 7 , the shell 1 is provided with a second limiting hole 13 at least at one end along the gear shaft 21, and the gear shaft 21 is rotationally matched with the shell 1 through the second limiting hole 13.

[0085] As a feasible implementation, the shell 1 is provided with a second limiting hole 13 at both ends along the gear shaft 21, which is connected with the outside, the gear shaft 21 includes a gear part 214 and a rotating part 215, and the rotating part 215 is located at both ends of the gear part 214, and the second limiting hole 13 is rotationally matched with the rotating part 215.

[0086] Specifically, the second limiting hole 13 is sized to fit the rotating part 215, the rotating part 215 is sleeved in the second limiting hole 13, and the end face of the gear part 214 abuts against the end face of the second limiting hole 13 close to the gear part 214.

[0087] Through the design of the second limiting hole 13, the movement of the gear shaft 21 in the horizontal direction and the vertical direction is limited, so that the gear shaft 21 can only rotate along the established central axis, and the abutting part 22 can always maintain the abutting state with the gear shaft 21 when rotating, thereby improving the stability of the abutting part 22 and the gear shaft 21.

[0088] In a specific embodiment, the second limiting hole 13 provided at the end of the shell 1 away from the fastener 3 is provided with a baffle 15, which is used to cover the second limiting hole 13 at this position, so as to avoid the fastener 3 from being separated from the gear shaft 21 at the second limiting hole 13.

[0089] Alternatively, the second limiting hole 13 on the end of the shell 1 away from the fastener 3 can be set not to communicate with the outside.

[0090] As another feasible implementation, the shell 1 is provided with a second limiting hole 13 at the end close to the fastener 3, which is connected with the outside, the end of the gear shaft 21 close to the second limiting hole 13 is the rotating part 215, the end of the gear shaft 21 away from the second limiting hole 13 is the gear part 214, and the fastener 3 extends out of the shell 1 from the second limiting hole 13.

[0091] Further, please refer to Figure 8 and Figure 9 , the gear shaft 21 has a hollow channel 211, the hollow channel 211 is at least partially provided with an internal thread 213, and the fastener 3 is provided with an external thread 31 matched with the internal thread 213 in the length direction.

[0092] It should be noted that the fastener 3 penetrates the gear shaft 21 through the hollow channel 211, and is threadedly connected with the inner wall of the hollow channel 211, so that the gear shaft 21 can drive the fastener 3 to rotate when the gear shaft 21 rotates, and then the part of the fastener 3 exposed in the hollow channel 211 can be locked or separated from the external equipment.

[0093] Further, the fastener 3 is partially accommodated in the hollow channel 211, and the inner wall of the hollow channel 211 is provided with a first limiting structure 212, and the fastener 3 accommodated in one end of the hollow channel 211 is provided with a second limiting structure 32 matched with the first limiting structure 212.

[0094] As a feasible implementation, the first limiting structure 212 is an annular protrusion arranged on the inner wall of the hollow channel 211, and the internal thread 213 is arranged on the inner wall of the first limiting structure 212, and the fastener 3 is threadedly matched with the internal thread 213 on the first limiting structure 212 through the external thread 31 on the fastener 3, so that the fastener 3 is connected with the gear shaft 21.

[0095] The fastener 3 accommodated in one end of the hollow channel 211 is provided with the second limiting structure 32, and when the fastener 3 rotates relative to the gear shaft 21, the second limiting structure 32 approaches or moves away from the first limiting structure 212, and when the fastener 3 rotates to the second limiting structure 32 abutting against the first limiting structure 212, the first limiting structure 212 limits the fastener 3 to continue rotating in the direction, avoiding the gear shaft 21 from excessively rotating to cause the fastener 3 to separate from the gear shaft 21.

[0096] Further, the inner wall of the shell 1 is provided with a third limiting groove 14, and the elastic member 23 is fixedly matched with the shell 1 through the third limiting groove 14.

[0097] It can be understood that the elastic member 23 is partially accommodated in the third limiting groove 14, and the movement of the elastic member 23 in the shell 1 is limited through the third limiting groove 14, so that the elastic member 23 is relatively fixed with the shell 1, and then when the elastic member 23 cooperates with the abutting member 22, the abutting member 22 can also maintain the corresponding positioning state, so that it can better drive the gear shaft 21 to rotate.

[0098] Optionally, the elastic member 23 is fixedly arranged on the shell 1.

[0099] Further, referring to Figure 10 , the second embodiment of the present application provides a device 100 with an anti-theft function, which comprises a first connecting part 20, a second connecting part 30 and the locking device 10 as any one of the above, and the first connecting part 20 and the second connecting part 30 are detachably connected through the locking device 10.

[0100] It should be noted that the device 100 provided in the embodiment has the same beneficial effects as the locking device 10 described in any of the above, which will not be repeated here.

[0101] It should be noted that in the embodiment, the device 100 can be a power tower, a transformer and the like, and the theft or damage of the fastener of the power device can cause serious safety accidents; the device 100 can also be a street lamp, a traffic sign and the like, and the fastener on the public facility is also easy to be stolen, and the service life of the public facility can be prolonged by using the locking device 10, thereby reducing the maintenance cost.

[0102] Specifically, the device 100 can also be a vehicle such as a car or a motorcycle, and the locking device 10 can be used to fix components such as the engine, the hub and the license plate of the vehicle to prevent theft or illegal modification; the device 100 can also be a display cabinet and a collection cabinet for valuable articles, so as to protect valuable articles such as artworks, jewelry and gold, and avoid the loss of property caused by theft.

[0103] In addition, the device 100 can also be some key devices in industrial and agricultural production, such as industrial devices such as engines and transmission devices, and agricultural devices such as tractors and harvesters, so as to prevent outsiders from illegally disassembling and stealing, and to ensure the normal operation and safety of the industrial and agricultural devices.

[0104] It can be understood that the above only describes preferred embodiments of the utility model, and does not limit the utility model, and the device 100 can also be used in other fields.

[0105] Compared with the prior art, the locking device and the device have the following advantages:

[0106] 1、The locking device provided by the embodiment of the utility model, through the elastic member, the abutting member is abutted and matched with the gear shaft in a specific direction, so that when the abutting member rotates in the abutting direction, the gear shaft is driven to rotate synchronously through the abutting member, and when the abutting member rotates in the non-abutting direction, the gear shaft drives the abutting member to deflect, so that the abutting member slides along the outer periphery of the gear shaft, the abutting member idles relative to the gear shaft, that is, the abutting member cannot drive the gear shaft to rotate in the non-abutting direction.

[0107] Through the design, outsiders can avoid twisting the locking device out of the external device through the shell, and then stealing or damaging the related device, causing the property loss of the user.

[0108] 2. The locking device provided by the embodiment of the utility model, first clamping structure and second clamping structure are along different direction with gear shaft and resist, so that when different clamping structure cooperates with gear shaft, gear shaft can be driven to rotate in different direction, and it cannot rotate in reverse direction, so that fastener and external equipment have two cooperation modes of locking and detachable, while guaranteeing good anti-theft effect of locking device, locking device can also be detached from related equipment when necessary.

[0109] 3. The locking device provided by the embodiment of the utility model, the abutting piece is under the action of the elastic piece, so that the first clamping structure or the second clamping structure keeps the meshing state with the gear shaft, avoiding the abutting piece from being separated from the gear shaft under the influence of external force, and further causing the abutting piece unable to drive the gear shaft to rotate. Secondly, the elastic piece and the abutting piece are elastically matched, so that the abutting piece can be reset to the abutting state with the gear shaft after idling relative to the gear shaft, so that the abutting piece can continue to drive the gear shaft to rotate.

[0110] 4. The locking device provided by the embodiment of the utility model, the limiting column is partially accommodated in the first limiting hole which is in communication with the outside, and the user can operate the limiting column through the first limiting hole to control the first clamping structure or the second clamping structure to cooperate with the gear shaft, so that the abutting piece can drive the gear shaft to rotate in a preset direction to realize the disassembly or locking of the fastener. When the limiting column rotates to abut with the first limiting hole, the elastic piece just cooperates with the first limiting slot or the second limiting slot. Through this design, the user can quickly and accurately rotate the abutting piece to the cooperation state with the elastic piece, improving the user's experience.

[0111] 5. The locking device provided by the embodiment of the utility model, the limiting column is completely accommodated in the first limiting hole, that is, the limiting column is not exposed to the outside, so that outsiders cannot directly rotate the limiting column from the outside of the shell without using tools to contact the current locking mode of the locking device. Secondly, the rotating structure on the limiting column is polygonal, that is, a tool that matches the shape of the rotating structure is needed to drive the abutting piece to rotate to contact the locking mode of the locking device. Through this design, it is avoided that outsiders drive the abutting piece to rotate through tools collected at hand, thereby realizing good anti-theft effect.

[0112] 6. The locking device provided by the embodiment of the utility model, the movement of the gear shaft in the horizontal direction and the vertical direction is limited through the second limiting hole, so that the gear shaft can only rotate along the established central axis, and further ensure that the abutting piece can always keep the abutting state with the gear shaft when rotating, improving the stability of the cooperation between the abutting piece and the gear shaft.

[0113] 7. The locking device provided by the embodiments of the utility model, the fastener and the gear shaft are threadedly matched, so that the fastener can be driven to rotate when the gear shaft rotates, and then the fastener exposed in the hollow passage part can be locked or separated from the external equipment.

[0114] 8. The locking device provided by the embodiments of the utility model, the first limiting structure and the second limiting structure are matched to ensure the connection of the fastener and the gear shaft, so that the gear shaft is prevented from excessively rotating to cause the fastener to separate from the gear shaft.

[0115] 9. The locking device provided by the embodiments of the utility model, the third limiting groove is used to relatively fix the elastic member and the shell, and then when the elastic member cooperates with the abutting member, the abutting member can also keep the corresponding positioning state, so that it can better drive the gear shaft to rotate.

[0116] 10. The device provided by the embodiments of the utility model has the anti-theft function, and comprises a first connecting part, a second connecting part and the locking device as claimed in any one of the above, the first connecting part and the second connecting part are detachably connected through the locking device.

[0117] The device has the same beneficial effects as the locking device as claimed in any one of the above, and will not be described here.

[0118] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A locking device, characterized by: The locking device comprises a shell, a locking assembly and a fastener. The shell has a receiving cavity inside, the locking assembly comprises a gear shaft, an abutting member and an elastic member arranged in the receiving cavity, the gear shaft and the abutting member are rotationally connected with the shell, and the abutting member is abuttingly connected with the gear shaft through the elastic member. When the abutting member abuts the gear shaft, the shell can only drive the gear shaft to rotate in an abutting direction, and when the shell rotates in a non-abutting direction, the shell idles relative to the gear shaft. The abutting direction and the non-abutting direction are one clockwise and the other counterclockwise. One end of the fastener is connected with the gear shaft, and the other end extends out of the receiving cavity.

2. The locking device of claim 1, wherein: The abutting member is provided with a first clamping structure and a second clamping structure at two ends in the length direction respectively, and the first clamping structure and the second clamping structure abut the gear shaft in different directions respectively.

3. The locking device of claim 2, wherein: The abutting member is provided with a first limiting groove and a second limiting groove on the side close to the elastic member, when the first limiting groove is matched with the elastic member, the first clamping structure abuts the gear shaft, and when the second limiting groove is matched with the elastic member, the second clamping structure abuts the gear shaft.

4. The locking device of claim 3, wherein: The upper end of the shell is provided with a first limiting hole in communication with the outside, and the upper end surface of the abutting member is provided with a limiting column rotationally matched with the first limiting hole, when the limiting column is rotated to abut the first limiting hole, the elastic member is matched with the first limiting groove or the second limiting groove.

5. The locking device of claim 4, wherein: The upper surface of the first limiting hole is higher than the upper surface of the limiting column, and the upper surface of the limiting column is provided with a polygonal rotating structure.

6. The locking device of claim 1, wherein: The shell is provided with a second limiting hole at least at one end in the axial direction of the gear shaft, and the gear shaft is rotationally matched with the shell through the second limiting hole.

7. The locking device of claim 1, wherein: The gear shaft has a hollow channel, the hollow channel is at least partially provided with an internal thread, and the fastener is provided with an external thread matched with the internal thread in the length direction.

8. The locking device of claim 7, wherein: The fastener is partially accommodated in the hollow channel, the inner wall of the hollow channel is provided with a first limiting structure, and the fastener accommodated in one end of the hollow channel is provided with a second limiting structure matched with the first limiting structure.

9. The locking device of claim 1, wherein: The inner wall of the shell is provided with a third limiting groove, and the elastic member is fixedly matched with the shell through the third limiting groove.

10. An apparatus having an anti-theft function, characterized by comprising: The locking device comprises a first connecting component, a second connecting component and the locking device as claimed in any one of claims 1-9, and the first connecting component and the second connecting component are detachably connected through the locking device.

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