Locking device

Abstract

The utility model provides a locking device which is applied to connection of a plurality of parts, and the parts are provided with hole sites. The locking device comprises a locking rod which comprises a rod body and a limiting part, and one end of the rod body is connected with the limiting part; the handle is arranged at one end, far away from the limiting part, of the rod body; and the elastic piece is sleeved on the lock rod. The locking device is used for connecting a plurality of parts, on one hand, the connection of the parts can be completed through insertion and rotation at a certain angle or elastic opening, so that the connection operation between the parts is convenient and fast, and the production efficiency can be improved; and on the other hand, when the parts are vibrated, the problem of connection failure of the parts caused by threaded connection looseness does not exist, and therefore the reliability of connection among the multiple parts can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locking devices, and particularly relates to a locking device. Background Art

[0002] In the related art, when connecting two components or fixing one component to another component, a locking device such as a bolt and nut is usually adopted. Specifically, the end of the screw rod of the bolt passes through the two components and is threadedly connected with the nut, and the nut is tightened so that the head of the bolt and the nut respectively abut against the two components, thereby relatively fixing the two components.

[0003] However, when using this locking device to fix between two components, on the one hand, it is necessary to repeatedly rotate the nut or bolt with a tightening tool during locking, resulting in low production efficiency; on the other hand, under working conditions such as vibration, the threaded connection between the nut and the bolt is likely to become loose, and even the nut or bolt may fall off, causing fastening failure. Summary of the Utility Model

[0004] An embodiment of the utility model provides a locking device, which can improve the low production efficiency. In addition, under working conditions with vibration, the bolt is likely to become loose and fall off, causing the technical problem of fastening failure.

[0005] An embodiment of the utility model provides a locking device, which is applied to the connection of multiple components, and the components have hole positions;

[0006] The locking device includes:

[0007] A lock rod, including a rod body and a limiting portion, one end of the rod body is connected to the limiting portion;

[0008] A handle, arranged at one end of the rod body far from the limiting portion;

[0009] An elastic member, sleeved on the lock rod;

[0010] Wherein, the limiting portion is configured to abut against the end face of the component far from the handle after passing through the hole position, and the rod body is configured to pass through the hole position. Among the multiple components, the one close to the handle is the first component, and both ends of the elastic member are configured to respectively abut against the handle and the first component.

[0011] In one embodiment, the locking device further includes a force adding component, and the force adding component includes:

[0012] A base, sleeved on the rod body and configured to be located between the first component and the handle, and the elastic member respectively abuts against the handle and the base;

[0013] The force - applying member is movably arranged on the base. The force - applying member is configured to be axially movable relative to the base along the rod body. After the force - applying member moves to a preset position, both ends of the force - applying member are respectively in contact with the base and the handle, and one end of the base away from the handle is configured to be in contact with the first component.

[0014] In one embodiment, the force - applying member is threadedly connected to the base.

[0015] In one embodiment, the force - applying member is a ring body. The ring body is sleeved on the base, and the inner peripheral surface of the ring body is threadedly connected to the outer peripheral surface of the base.

[0016] In one embodiment, the force - applying member includes at least two studs. Threaded holes corresponding to each stud are provided on the base, and each stud is threadedly connected to the base through the corresponding threaded hole.

[0017] In one embodiment, the base includes:

[0018] A main body sleeved on the rod body;

[0019] A contact member provided on the outer peripheral surface of the main body and located at one end away from the handle;

[0020] Wherein, one end of the main body away from the handle and one end of the contact member away from the handle are configured to be in contact with the first component.

[0021] In one embodiment, the contact member is an annular structure. The annular structure is sleeved on the main body and connected to the main body.

[0022] In one embodiment, a shoulder is provided on the lock rod between the base and the limiting portion. Along the axial direction of the rod body, the base is in a blocking fit with the shoulder.

[0023] In one embodiment, the hole on the base cooperating with the rod body is a two - stage stepped hole. Along the direction away from the handle, the two - stage stepped hole includes a first hole and a second hole that are sequentially communicated. The aperture of the first hole is larger than that of the second hole. One end of the elastic member away from the handle is inserted into the first hole and abuts against the bottom of the first hole.

[0024] In one embodiment, the elastic member includes one or more of a spring, an elastic airbag, and an elastic rubber sleeve.

[0025] In one embodiment, along the radial direction of the rod body, at least part of the size of the handle is larger than the size of the force - applying member.

[0026] In one embodiment, one of the plurality of components away from the handle is a second component. A limiting groove is provided on a side wall of the second component close to the limiting portion. The limiting groove communicates with the hole position and is configured to cooperate with the limiting portion.

[0027] Advantageous effects of the embodiments of the present utility model:

[0028] In the embodiments of the present utility model, the connection of multiple components is carried out through the locking device. On the one hand, the connection of multiple components can be completed by inserting, rotating at a certain angle or elastically expanding, so that the connection operation between components is convenient, and thus the production efficiency can be improved; on the other hand, when the components are vibrated, there is no problem of loosening of the threaded connection resulting in the failure of the connection of the components, so that the reliability of the connection between multiple components can be improved. Description of the drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 is a three-dimensional schematic diagram of the locking device provided by the embodiment of the present utility model;

[0031] Figure 2 is a top view of the locking device provided by the embodiment of the present utility model;

[0032] Figure 3 is Figure 2 a cross-sectional view taken along G-G in

[0033] Figure 4 is Figure 2 a cross-sectional view taken along H-H in

[0034] Figure 5 is a top view of the locking device provided by the embodiment of the present utility model after locking the components;

[0035] Figure 6 is Figure 5 a cross-sectional view taken along C-C in

[0036] Figure 7 is a three-dimensional view of the locking device provided by the embodiment of the present utility model after locking the components;

[0037] Figure 8 is an exploded view of the locking device provided by the embodiment of the present utility model after locking the components;

[0038] Figure 9 It is a three-dimensional view of the component part.

[0039] Explanation of the reference numerals in the drawings:

[0040] 01 - Handle, 02 - Elastic member, 03 - Force - adding assembly, 031 - Force - adding member, 032 - Base, 0321 - Main body, 0322 - Contact member, 04 - Locking rod, 041 - Rod body, 042 - Shoulder, 043 - Limiting portion, 05 - Component part, 051 - First component part, 052 - Second component part, 06 - Hole position, 07 - Limiting groove. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present invention. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise stated, the orientation terms such as "upper" and "lower" usually refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the drawings; and "inner" and "outer" refer to the outline of the device.

[0042] Please refer to Figures 1-4 , Figure 5 and Figure 6 , an embodiment of the present application provides a locking device. In some embodiments, the locking device is applied to the connection of multiple component parts 05, and hole positions 06 are provided on the component parts 05; the locking device includes: a locking rod 04, including a rod body 041 and a limiting portion 043, one end of the rod body 041 is connected to the limiting portion 043; a handle 01, arranged at the end of the rod body 041 away from the limiting portion 043; an elastic member 02, sleeved on the locking rod 04; wherein, the limiting portion 043 is configured to pass through the hole position 06 and then abut against the end face of the component part 05 away from the handle 01, and the rod body 041 is configured to pass through the hole position 06. Among the multiple component parts 05, the one close to the handle 01 is the first component part 051, and both ends of the elastic member 02 are configured to abut against the handle 01 and the first component part 051 respectively.

[0043] Exemplarily, the elastic member 02 includes one or more of a spring, an elastic airbag, and an elastic rubber sleeve.

[0044] It can be understood that each component 05 is provided with a hole 06, and the hole 06 is a through hole. A plurality of components 05 are stacked along the axial direction of the locking rod 04, and the axes of the plurality of holes 06 are parallel to the axis of the locking rod 04.

[0045] It can be understood that the rod body 041 and the limiting part 043 can be integrally formed, or the rod body 041 and the limiting part 043 can be welded. In this way, the rod body 041 and the limiting part 043 are firmly connected. The materials of the rod body 041 and the limiting part 043 can be the same or different, and the present application is not limited thereto.

[0046] It can be understood that the handle 01 and the rod body 041 can be welded or connected by threads. When the handle 01 is connected to the rod body 041 by threads, the handle 01 has a thread groove, and internal threads are provided on the groove wall of the thread groove. External threads are provided at the position of the rod body adapted to the thread groove, and the internal threads and the external threads are adapted to each other. In this way, the handle 01 and the rod body 041 are firmly connected and convenient to install.

[0047] It can be understood that the elastic member 02 is sleeved on the locking rod 04, and the elastic member 02 can slide relative to the locking rod 04.

[0048] Specifically, when this locking device is used for connecting a plurality of components 05, the holes of the plurality of components 05 are arranged in sequence along the axial direction of the locking rod 04. Among the plurality of components 05, the component 052 that is farthest from the handle 01 is the second component. From the first component 051 to the direction of the second component 052, the limiting part 043 is inserted into the hole 06 in sequence. When the elastic member 02 abuts against the first component 051, press the handle 01 to compress the elastic member 02 until the limiting part 043 passes through the hole 06 of the second component 052. Then, rotate the locking rod 04 so that the limiting part 043 is misaligned with the hole 06, so that the limiting part 043 and the second component 052 are in a blocking fit. The blocking fit is specifically: after the limiting part 043 passes through the hole 06, it abuts against the end face of the second component 052 away from the handle 01. Thus, the connection of the plurality of components 05 is completed.

[0049] In some embodiments, the limiting part 043 is elastically contracted and arranged at one end of the rod body 041. It can be understood that when the limiting part 043 passes through the hole 06, the limiting part 043 opens in the direction away from the handle 01 under the action of elastic force to abut against the end face of the limiting part 043 away from the handle 01.

[0050] Among them, the elastic member 02 is in a compressed state, and its two ends respectively generate abutting thrusts on the first component 051 and the handle 01, so that adjacent two components 05 abut against each other, and further, in the axial direction of the locking rod 04, each component is locked.

[0051] In this embodiment, the locking device is used to connect multiple components 05. On the one hand, the connection of multiple components 05 can be completed by inserting and rotating at a certain angle or elastic opening, so that the connection operation between components 05 is convenient, and the production efficiency can be improved. On the other hand, when the components 05 are vibrated, there is no problem that the threaded connection is loosened and the connection of the components 05 fails, so the reliability of the connection between multiple components 05 can be improved.

[0052] Please refer to Figures 1-4 , in some embodiments, the locking device further includes a force - applying component 03. The force - applying component 03 includes: a base 032 sleeved on the rod body 041 and configured to be located between the first component 051 and the handle 01, and an elastic member 02 is respectively in contact with the handle 01 and the base 032; a force - applying member 031 movably arranged on the base 032. The force - applying member 031 is configured to be movable relative to the base 032 along the axial direction of the rod body 041, and after the force - applying member 031 moves to a preset position, both ends of the force - applying member 031 are respectively in contact with the base 032 and the handle 01, and one end of the base 032 away from the handle 01 is configured to be in contact with the first component 051.

[0053] Exemplarily, the force - applying member 031 is movably arranged on the base 032. It can be that the force - applying member 031 is threadedly connected to the base 032 to realize the movement of the force - applying member 031 relative to the base 032, and at the preset position, the force - applying member 031 and the base 032 are in contact through the screw threads between them for axial limitation on the rod body 041. In addition, one end of the force - applying member 031 close to the base 032. It can also be that a plurality of jacks are arranged on the base 032 along the axial direction of the rod body 041, and one end of the force - applying member 031 close to the base 032 is inserted into the jacks on the base 032 along the radial direction of the rod body 041. According to the preset position, the corresponding jack can be selected to install the force - applying member 031.

[0054] It can be understood that along the axial direction of the rod body 041, the base 032 can slide relative to the rod body 041, and at least part of the outer diameter of the base 032 is larger than the aperture of the hole 06 to prevent the base 032 from passing through the hole 06.

[0055] When the locking device locks multiple components 05, the base 032 is located between the first component 051 and the handle 01. At this time, both ends of the elastic member 02 are respectively pressed against the handle 01 and the base 032.

[0056] It can be understood that the force - applying member 031 can move axially relative to the base 032 along the locking rod 04. Along the axis of the locking rod 04, the force - applying member 031 has a first end and a second end which are oppositely arranged. The force - applying member 031 moving to a preset position means that along the axis direction of the locking rod 04, the position where the first end of the force - applying member 031 abuts against the handle 01. At this time, the second end of the force - applying member 031 is fixed on the base 032. In this embodiment, through the above - mentioned setting, by adjusting the position of the force - applying member 031, the force - applying member 031 can provide a thrust against the handle 01, so that the abutting force between two adjacent components can be increased. Furthermore, it can cooperate with the elastic member to further increase the locking force of the locking device on multiple components 05.

[0057] Please refer to Figures 1-4 In some embodiments, the force - applying member 031 is threadedly connected to the base 032.

[0058] It can be understood that along the axis direction of the locking rod 04, directly rotating the force - applying member 031 can realize the up - and - down movement of the force - applying member 031 along the base 032 to complete the position adjustment of the force - applying member 031, thereby improving the convenience of adjusting the position of the force - applying member 03.

[0059] Furthermore, the force - applying member 031 is a ring body, the ring body is sleeved on the base 032, and the inner peripheral surface of the ring body is threadedly connected to the outer peripheral surface of the base 032.

[0060] Exemplarily, the inner peripheral surface of the ring body is provided with a first thread, and the outer peripheral surface of the base 032 is provided with a second thread, and the first thread is adapted to the second thread.

[0061] It can be understood that the thread teeth of the first thread are fixed to the thread teeth of the second thread. The first thread can be an internal thread or an external thread. When the first thread is an external thread, the corresponding second thread is an internal thread, and when the first thread is an internal thread, the corresponding second thread is an external thread.

[0062] In this embodiment, through the above - mentioned setting, on the one hand, both ends of the force - applying member 031 can be in circumferential cooperation with the handle 01 and the base 032 respectively, so that the thrust forces received by the handle 01 and the base 032 from the force - applying member 031 are evenly distributed and symmetrically distributed along the axis of the rod body 041, thereby improving the stress state of the above - mentioned components.

[0063] Regarding the cooperation between the force - applying member 031 and the base 032, the following scheme can also be adopted: The force - applying member 031 includes at least two studs, and the base 032 is provided with threaded holes corresponding to each stud one by one. Each stud is threadedly connected to the corresponding threaded hole and thus fixed on the base 032. The end of the stud away from the base 032 abuts against the handle 01.

[0064] It can be understood that the number of studs can be 2, 3, 4, 5, etc. Optionally, the number of studs is 3. In this way, when the locking device locks a plurality of components 05, on the basis that the elastic member 02 provides a resisting force for the connection between the plurality of components, the studs can be rotated to abut against the handle 01, thereby further providing a supporting force for the handle 01, and further adapting to the working conditions of different scenarios. Therefore, the application range can be increased.

[0065] Furthermore, the threaded holes on the base 032 are evenly distributed. The base 032 has a sixth surface, and the sixth surface is the end face of the base 032 close to the handle 01. It can be understood that the threaded holes are formed on the sixth surface. It can also be understood that the threaded holes can be blind holes or through holes, and the present application is not limited thereto.

[0066] Please refer to Figures 1-4 , in some embodiments, the base 032 includes: a main body 0321 sleeved on the rod body 041; a contact member 0322 disposed on the outer peripheral surface of the main body 0321 and at the end away from the handle 01; wherein, the end of the main body 0321 away from the handle 01 and the end of the contact member 0322 away from the handle 01 are configured to abut against the first component 051.

[0067] In some embodiments, the contact member 0322 is an annular structure sleeved on the main body 0321 and connected to the main body 0321. In this way, on the basis of reducing the material used for the base 032, the contact area between the contact member 0322 and the first component 051 can be increased, and the force on the component 05 can be made uniform, thereby avoiding indentations on the first component 051 due to uneven force.

[0068] In some embodiments, the contact member 0322 includes a plurality of block structures evenly distributed on the outer peripheral surface of the main body 0321 around the axis of the rod body.

[0069] It can be understood that the main body 0321 and the contact member 0322 can be welded or integrally formed, so that the main body 0321 and the contact member 0322 are firmly connected.

[0070] It can be understood that the surface of the main body 0321 away from the handle 01 and the surface of the contact member 0322 away from the handle 01 are coplanar, so as to increase the contact surface between the base 032 and the component 05, thereby reducing the pressure on the contact surface, and further avoiding indentations on the first component 051 due to excessive force.

[0071] Please refer to Figure 3, in some embodiments, a shoulder 042 is provided on the locking rod 04 between the base 032 and the limiting portion 043. Along the axial direction of the rod body 041, the base 032 and the shoulder 042 are in abutting cooperation. It can be understood that after the shoulder 042 is provided on the locking rod 04 between the base 032 and the limiting portion 043, one end of the locking rod 04 is a large-diameter end and one end is a small-diameter end, and the large-diameter end of the locking rod 04 is fixedly connected to the limiting portion 043.

[0072] In some embodiments, the limiting portion 043 is elastically contracted and arranged at one end of the shoulder 042 away from the handle 01. It can be understood that when the limiting portion 043 passes through the hole 06, the limiting portion 043 expands in the direction away from the shoulder 042 under the action of elastic force to abut against the end face of the limiting portion 043 away from the handle 01.

[0073] It can be understood that along the axial direction of the locking rod 04, the thickness of the shoulder 042 can be set according to the thickness of the component 05 to be locked.

[0074] Please refer to Figure 3 and 4 , in some embodiments, the hole on the base 032 that cooperates with the rod body 041 is a two-stage stepped hole. Along the direction away from the handle 01, the two-stage stepped hole includes a first hole and a second hole that are sequentially communicated. The aperture of the first hole is larger than that of the second hole. One end of the elastic member 02 away from the handle 01 is inserted into the first hole and abuts against the bottom of the first hole.

[0075] It can be understood that an annular space is formed between the inner wall of the first hole and the outer peripheral surface of the rod body 041 sleeved thereon. One end of the elastic member 02 away from the handle 01 is located in the annular space. In this way, the annular space has a limiting effect on the radial deformation of the elastic member 02 located therein, so that the deformation of the elastic member 02 can be concentrated in the axial direction of the locking rod 04, and further, the deformation force of the elastic member can be more concentratedly applied to the component 05.

[0076] Please refer to Figure 3 , in some embodiments, along the radial direction of the rod body 041, at least part of the size of the handle 01 is larger than the size of the force-applying member 031. In this way, it is convenient for the force-applying member 031 to provide a supporting force to the handle 01, thereby improving the reliability of the abutment between the handle and the force-applying member.

[0077] Please refer to Figure 7 , Figure 8 and Figure 9 , among the multiple components 05, the one away from the handle 01 is the second component 052. A limiting groove 07 is provided on the side wall of the second component 052 close to the limiting portion 043. The limiting groove 07 is communicated with the hole 06 and is configured to cooperate with the limiting portion 043.

[0078] It can be understood that the side wall of the limiting part 043 facing away from the axis of the rod body 041 is the first side wall, the hole wall of the hole position 06 opposite to the first side wall is the first hole wall, and the direction of the vertical connection line between the center of the first hole wall and the axis of the hole position 06 is the first direction. The groove wall of the limiting groove 07 opposite to the first side wall is the first groove wall, and the direction of the vertical connection line between the center of the first groove wall and the axis of the hole position 06 is the second direction. The first direction and the second direction are arranged intersectingly, and the included angle between the two can be any angle between 0° and 180°, excluding 0° and 180°.

[0079] In this embodiment, by providing the limiting groove 07, in the circumferential direction of the rod body, the rotation of the limiting part is restricted by the groove wall of the limiting groove, so as to improve the reliability of the blocking cooperation between the limiting part and the second component.

[0080] In addition, a mark indicating the rotation direction of the handle 01 can be processed on the surface of the first component 051 close to the handle 01 to indicate the operator to rotate in the indicated direction, thereby improving the operation convenience.

[0081] Preferably, after the limiting part 043 passes through the second component 052 and rotates 90 degrees around the axis of the rod body 041, it is opposite to the limiting groove 07. Thus, the distance between the limiting groove 07 and the part of the hole position 06 for cooperating with the limiting part 043 is relatively large, so that the limiting groove 07 and the part of the hole position 06 for cooperating with the limiting part 043 each have sufficient setting space, and then the limiting part 143 can have a larger size. Thereby, the area of the abutting surface between the limiting part 043 and the second component 052 can be increased to reduce the stress on the abutting surface therebetween.

[0082] The embodiments of the present invention have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A locking device, characterized in that: Applicable to the connection of multiple parts, wherein the parts have holes; The locking device comprises: The locking rod comprises a rod body and a limiting portion, wherein one end of the rod body is connected to the limiting portion; A handle, arranged at one end of the rod body away from the limiting portion; An elastic member, sleeved on the locking rod; Among them, the limiting portion is configured to abut against the end surface of the component away from the handle after passing through the hole, and the rod body is configured to pass through the hole, one of the multiple components close to the handle is the first component, and the two ends of the elastic member are configured to abut against the handle and the first component respectively.

2. The locking device according to claim 1, characterized in that: The locking device further includes a force-applying component, and the force-applying component includes: A base, sleeved on the rod body and configured to be located between the first component and the handle, wherein the elastic member abuts against the handle and the base respectively; A force member is movably arranged on the base, and the force member is configured to be movable relative to the base along the axial direction of the rod body. After the force member moves to a preset position, the two ends of the force member abut against the base and the handle respectively, and the end of the base away from the handle is configured to abut against the first component.

3. The locking device according to claim 2, characterized in that: The force adding member is threadedly connected to the base.

4. The locking device according to claim 3, characterized in that: The force-applying member is a ring body, which is sleeved on the base, and the inner circumference of the ring body is threadedly connected to the outer circumference of the base.

5. The locking device according to claim 3, characterized in that: The force-adding member comprises at least two studs, and the base is provided with threaded holes aligned with each of the studs one by one, and each of the studs is threadedly connected to the base through the threaded hole aligned with it.

6. The locking device according to claim 2, characterized in that: The base includes: A main body, sleeved on the rod body; A contact member, disposed on the outer peripheral surface of the main body and located at an end away from the handle; Wherein, one end of the main body away from the handle and one end of the contact piece away from the handle are configured to abut against the first component.

7. The locking device according to claim 6, characterized in that: The contact piece is an annular structure, which is sleeved on the main body and connected to the main body.

8. The locking device according to claim 2, characterized in that: A shaft shoulder is arranged on the locking rod between the base and the limiting portion, and the base is engaged with the shaft shoulder along the axis direction of the rod body.

9. The locking device according to claim 2, characterized in that: The hole on the base that cooperates with the rod body is a secondary stepped hole. Along the direction away from the handle, the secondary stepped hole includes a first hole and a second hole that are connected in sequence. The aperture of the first hole is larger than the aperture of the second hole. The end of the elastic member away from the handle is inserted into the first hole and abuts against the bottom of the first hole.

10. The locking device according to any one of claims 1 to 9, characterized in that: The elastic member includes one or more of a spring, an elastic air bag, and an elastic rubber sleeve.

11. The locking device according to claim 2, characterized in that: Along the radial direction of the rod body, at least a portion of the size of the handle is larger than the size of the force member.

12. The locking device according to claim 10, characterized in that: One of the multiple components away from the handle is a second component, and a limiting groove is provided on the side wall of the second component close to the limiting portion. The limiting groove is connected to the hole and is configured to cooperate with the limiting portion.

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