TWI736461B - Locking device for preventing loosening - Google Patents

Abstract

The present invention relates to an anti-loosening locking device, which includes: a sleeve with a containing groove inside and a friction wall with an upper and a lower narrow in the vertical direction of the containing groove, on the bottom side of the sleeve It has a narrowing and its outer edge can be positioned at a positioning part of a predetermined first plate; a fixing element has a head protruding above the sleeve and extending downwards from the bottom of the head A shaft that is inserted into the accommodating groove of the sleeve, the shaft further extends downwardly with a locking portion that can be positioned on a predetermined second plate; an elastic member is sleeved on the fixing element On the outside of the shaft, the elastic member has a first end that is narrower on the top side and a second end that is wider on the bottom side. The accommodating groove rotates to form a smooth lock, and when the fixing element is unlocked and released, the elastic member rebounds and resets and the outer edge of the second end is resisted by the friction wall surface of the accommodating groove to increase the resistance of unlocking and releasing .

Description

Locking device for preventing loosening

The present invention provides an anti-loosening locking device, especially a locking device comprising a sleeve, a fixing element and an elastic piece. When the fixing element is locked and fixed in position, the elastic piece is compressed and placed in the accommodating position. The inside of the groove rotates to form a smooth lock, and when the fixing element is unlocked and released, the elastic member rebounds and resets and the outer edge of the second end is resisted by the friction wall surface of the accommodating groove to increase the resistance of unlocking and releasing.

Press, when the general panel (board to board) is assembled, it is locked with a positioning screw equipped with a collar and a screw, and the screw and the collar are fixed on the first panel, and the screw is turned to lock It is inserted into the second panel to form a preset positioning, and then use a hand tool to lock the screws, so that the first panel and the second panel are locked and fixed as a whole, and can be used in telecommunication bureau cabinets, industrial computers, working mother machines, etc. The load-bearing equipment composed of plural devices and mechanisms is used for board-to-board connection.

Furthermore, with the development of technology, electronic devices are currently driven to be lighter, thinner, shorter, and smaller, so the positioning screws for the load-bearing equipment and the upper locking also need to be reduced accordingly. However, the positioning screws will occur during transportation. Natural phenomena such as shaking, vibration, etc., so that the screws of the positioning screws are easy to rotate in the releasing direction, and then loosening occurs, thereby making the first panel and the second panel unable to be tightly combined, resulting in the first panel and the second panel. The two panels are prone to collide with each other. Bad conditions such as scratches, dents, or damage.

Therefore, in order to prevent the positioning screw from loosening, the locking force will be increased during the locking process. However, increasing the locking force will not improve the loosening situation, and it is easy to pass due to the locking force. Strong, causing the first panel to be locked on the second panel, it is easy to over-lock the positioning screw on the second panel, which will cause the first panel to deform, break, etc., or cause the locking position of the positioning screw to occur Teeth collapsed or broken, etc., resulting in many problems.

Therefore, how to solve the above-mentioned conventional problems and deficiencies is the direction that relevant manufacturers in this industry want to study and improve.

Therefore, in view of the above-mentioned problems and deficiencies, the inventor collected relevant information, and through multiple evaluations and considerations, he designed the invention of this kind of anti-loosening lock device.

The main purpose of the present invention is to provide an anti-loosening locking device, which includes: a sleeve with an accommodation groove inside and a friction wall surface located in the vertical direction of the accommodation groove with an upper width and a lower width, in the sleeve The bottom side of the cylinder is narrowed and its outer edge can be positioned at a positioning part of a predetermined first plate; a fixing element has a head protruding above the sleeve and facing downward on the bottom of the head A shaft extending through the accommodating groove of the sleeve, the shaft extending downwards with a locking portion that can be positioned on a predetermined second plate; an elastic member sleeved on the Outside of the shaft of the fixing element, the elastic element has a first end that is narrower on the top side and a second end that is wider on the bottom side. When the fixing element is locked and fixed, the elastic element is compressed And it rotates in the accommodating groove to form a smooth lock, and when the fixing element is unlocked and released, the elastic member rebounds and resets and the outer edge of the second end is resisted by the friction wall surface of the accommodating groove to increase unlocking Release of hindrance force. Through the foregoing structure, a locking structure that is surely locked and positioned and is not easy to be unlocked and loosened by external forces is achieved.

The secondary object of the present invention is that the top side of the sleeve further has a positioning flange for an outer sleeve to be combined, and the outer sleeve has a storage space for the head of the fixing element to be used as an accommodation, and The bottom side of the storage space is provided with a constricted wall surface that is engaged with the bottom side of the positioning flange, and the top side of the outer sleeve is provided with a stop edge for blocking the head of the fixing element, and outside the outer sleeve The surface is provided with a turning part, and the upper and lower sides of the outer surface of the turning part are further provided with a plurality of anti-slip grooves in the shape of a concave arc.

Another object of the present invention is that the bottom side of the accommodating groove has a resisting portion for the second end of the elastic piece to resist, and the first end of the elastic piece resists the fixing element On the bottom surface of the head, between the second end of the elastic member and the abutting portion, there is a damping member having a C-shaped appearance, and the damping member is provided with the locking portion of the fixing element passing through A through hole, and the damping member has a staggered plurality of step surfaces and a plurality of stop walls on at least the upper surface, and the adjacent step surface and the stop wall are perpendicular to each other. When the fixing element When locking and fixing the position, the end section of the second end of the elastic element slides on the steps of the damping element to form a smooth lock, and when the fixing element is unlocked and released, the second end of the elastic element The end of the end abuts against one of the blocking walls of the damping member to increase the resistance of unlocking and releasing.

Another object of the present invention is that the upper and lower surfaces of the damping element are provided with a plurality of staggered steps and a plurality of stop walls.

1: sleeve

10: accommodating slot

101: friction wall

102: Resisting Department

11: Positioning department

12: Positioning flange

2: fixed element

21: head

211: Anti-slip lines

22: Shaft

23: Locking part

231: External thread

24: Acting surface

3: Elastic parts

31: first end

32: second end

4: Outer tube

40: Storage space

401: Shrink Wall

41: stop off the edge

42: Pulling part

420: anti-slip groove

5: Damping parts

50: Through hole

51: step surface

52: stop wall

[Figure 1] is a perspective view of the anti-loosening locking device of the present invention.

[Figure 2] is a three-dimensional exploded view of the anti-loosening locking device of the present invention.

[Figure 3] is another three-dimensional exploded view of the anti-loosening locking device of the present invention.

[Figure 4] is a side cross-sectional view of the anti-loosening locking device of the present invention.

[Figure 5] is another side cross-sectional view of the anti-loosening locking device of the present invention.

In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present invention are illustrated below in detail to illustrate the features and functions of the preferred embodiments of the present invention, so as to fully understand.

Please refer to Figures 1 to 5, each of which is a three-dimensional appearance view, a three-dimensional exploded view, another three-dimensional exploded view, a side sectional view, and the other side sectional view of the anti-loosing locking device of the present invention. It can be clearly seen that the anti-loosening locking device of the present invention includes: a sleeve 1, a fixing element 2 and an elastic member 3. The main components and features are described in detail as follows:

The sleeve 1 has a accommodating groove 10 and a friction wall 101 in the vertical direction of the accommodating groove 10 with an upper and lower narrower. The sleeve 1 has a narrowing on the bottom side and its outer edge can be positioned at a preset Set a positioning portion 11 of the first plate (not shown in the figure);

The fixing element 2 has a head 21 protruding above the sleeve 1, and a shaft 22 that penetrates the receiving groove 10 of the sleeve 1 extends downward from the bottom surface of the head 21. The shaft 22 further extends downwards with a locking portion 23 that can be positioned on a predetermined second plate (not shown in the figure);

The elastic member 3 is sleeved on the outside of the shaft 22 of the fixing element 2. The elastic member 3 has a first end 31 that is narrower on the top side and a second end 32 that is wider on the bottom side. When the fixing element 2 locks and fixes the position, the elastic element 3 is compressed and rotates in the accommodating groove 10 to form a smooth lock, and when the fixing element 2 is unlocked and released, the elastic element 3 rebounds and resets and the The outer edge of the second end 32 is resisted by the friction wall 101 of the accommodating groove 10 to increase the resistance of unlocking and releasing.

The top side of the sleeve 1 further has a positioning flange 12 for an outer sleeve 4 to be combined, and the outer sleeve 4 has a receiving space 40 for the head 21 of the fixing element 2 to be used as an accommodation, and The bottom side of the storage space 40 is provided with a constricted wall surface 401 that is engaged with the bottom side of the positioning flange 12, and on the top side of the outer sleeve 4 there is a stop edge 41 for blocking the head 21 of the fixing element 2 , And the outer surface of the outer sleeve 4 has a flipping portion 42, and the flipping portion 42 is further provided with a plurality of anti-slip grooves 420 in the shape of a concave arc on and under the external surface of the flipping portion 42.

The bottom side of the accommodating groove 10 has a resisting portion 102 for the second end 32 of the elastic element 3 to be a resist, and the first end 31 of the elastic element 3 resists the fixing element 2 On the bottom surface of the head 21, between the second end 32 of the elastic member 3 and the abutting portion 102, a damping member 5 having a C-shaped appearance is further provided. The damping member 5 is provided with the fixing element 2 inside. The locking portion 23 penetrates a through hole 50, and the damping member 5 has a staggered plurality of stepped surfaces 51 and a plurality of stop walls 52 on at least the upper surface, and the adjacent stepped surface 51 and the stopper The walls 52 are perpendicular to each other. When the fixing element 2 is locked and fixed in a clockwise direction, the end section of the second end 32 of the elastic member 3 is generated on the steps 51 of the damping member 5 Sliding to form a smooth lock, and when the fixing element 2 is unlocked and released in a counterclockwise direction, the end of the second end 32 of the elastic member 3 abuts against one of the blocking walls 52 of the damping member 5 , And increase the resistance to unlock release. In a preferred embodiment of the present invention, the damping member 5 is provided with a plurality of staggered steps 51 and a plurality of blocking walls 52 on both the upper and lower surfaces.

The top surface of the head 21 of the fixing element 2 is provided with an actuating surface 24 of a cross, an inner hexagonal groove, a Pozi-shaped groove or a hexagonal convex pillar, and the periphery of the head 21 of the fixing element 2 is provided with The surface of the locking portion 23 of the fixing element 2 is provided with an external thread 231.

When the anti-loosening locking device of the present invention is to be assembled, the damping member 5 is first inserted into the bottom of the accommodating groove 10 of the sleeve 1, but the present invention may not use the damping member 5 as the anti-loosening element ( As shown in Figure 5), the purpose of preventing loosening is achieved only by the friction between the accommodating groove 10 of the sleeve 1, the fixing element 2 and the elastic member 3. Therefore, whether or not the damping member 5 is provided is the present invention. protected range. After the damping member 5 is placed in the accommodating groove 10 of the sleeve, the elastic member 3 is then placed outside the shaft 22 of the fixing element 2, and the shaft 22 and the locking portion 23 of the fixing element 2 are put through In the accommodating groove 10 of the sleeve 1 and the through hole 50 of the damping member 5, the first end 31 of the elastic member 3 abuts against the bottom surface of the head 21 of the fixing element 2, and the second end of the elastic member 3 The two ends 32 abut against the upper surface of the damping member 5, and then the outer sleeve 4 is placed on the outside of the sleeve 1 and the fixing element 2, and the contraction wall 401 of the outer sleeve 4 is engaged with the positioning of the sleeve 1. The bottom side of the flange 12 completes the assembly of the anti-loosening locking device of the present invention through the aforementioned actions.

When the anti-loosening locking device of the present invention is used, the positioning portion 11 of the sleeve 1 is first inserted into the preset first perforation (not shown in the figure) of the preset first plate for positioning, and the preset The bottom side of the first plate is provided with a preset second plate, and the preset second plate also has a preset second perforation (not shown in the figure) for screw locking of the locking portion 23 of the fixing element to form a preset The fixing structure of the first board and the preset second board. The present invention mainly uses the fixing element 2 to lock and fix the position, the elastic element 3 is compressed and rotates in the accommodating groove 10 to form a smooth lock, and when the fixing element 2 is unlocked and released, the elastic element 3 rebounds and resets. The outer edge of the second end 32 is resisted by the friction wall 101 of the accommodating groove 10 to increase the resistance of unlocking and releasing. The friction force between the accommodating groove 10 of the sleeve 1, the fixing element 2 and the elastic member 3 is used to prevent loosening. The function of taking off. However, the present invention is also built in the accommodating groove 10 of the sleeve 1 The damping element 5 is inserted to strengthen the friction force when the fixed element 2 is unlocked and released, and the principle of the increased friction generated by the damping plate 5 is that when the fixed element 2 is unlocked and released in a counterclockwise direction, the second end 32 of the elastic element 3 The end abuts against one of the plurality of blocking walls 52 of the damping member 5. If the fixing element 2 needs to continue to rotate in the unlocking direction, the damping plate 5 needs to be pushed and rotated at the same time, thereby increasing the resistance of unlocking and releasing. So that the fixing element 2 is not easily affected by the external vibration force to cause looseness. At the same time, the outer sleeve 4 is used to protect the head 21 of the fixing element 2 from being touched by external force to cause loosening. From the above, it can be proved that the anti-loosening locking device of the present invention is indeed a locked positioning and is not easy to be unlocked by external forces. Loose locking structure.

According to the disclosure of the above-mentioned first to 5th figures, it can be understood that the present invention is an anti-loosening locking device, including: a sleeve with a containing groove inside and a vertical upper width and a lower width in the vertical direction of the containing groove A narrow friction wall has a narrowing on the bottom side of the sleeve and its outer edge can be positioned at a positioning part of a preset first plate; a fixing element having a head protruding above the sleeve , And extending downward from the bottom surface of the head, a shaft penetrating into the accommodating groove of the sleeve, and extending downward from the shaft a locking portion that can be positioned on a predetermined second plate; An elastic piece is sleeved on the outside of the shaft of the fixing element. The elastic piece has a first end that is narrower on the top side and a second end that is wider on the bottom side. When the fixing element is locked When in the fixed position, the elastic member is compressed and rotates in the accommodating groove to form a smooth lock, and when the fixing element is unlocked and released, the elastic member rebounds and resets and the outer edge of the second end is received by the accommodating groove The friction wall surface resists and increases the resistance of unlocking and releasing. Through the foregoing structure, a locking structure that is surely locked and positioned and is not easy to be unlocked and loosened by external forces is achieved. The invention is applied in the field where at least two plates need to be locked, and has good practicability. Therefore, a patent application is filed to seek protection of the patent right.

The above are only the preferred embodiments of the present invention, and the present invention is not limited thereby Therefore, all simple modifications and equivalent structural changes made by using the description of the present invention and the content of the drawings shall be included in the patent scope of the present invention for the same reason, and shall be stated.

In summary, the above-mentioned anti-loosening lock device of the present invention can indeed achieve its effect and purpose when used. Therefore, the present invention is an invention with excellent practicability. It meets the requirements of an invention patent application. The application is filed, and I hope that the review committee will grant this case as soon as possible to ensure the hard work of the invention. If the review committee of the Bureau has any doubts, please send me instructions and the inventor will do his best to cooperate, and I feel good.

1: sleeve

10: accommodating slot

11: Positioning department

12: Positioning flange

2: fixed element

21: head

211: Anti-slip lines

22: Shaft

23: Locking part

231: External thread

24: Acting surface

3: Elastic parts

31: first end

32: second end

4: Outer tube

40: Storage space

41: stop off the edge

42: Pulling part

420: anti-slip groove

5: Damping parts

50: Through hole

51: step surface

52: stop wall

Claims (7)

A locking device for preventing loosening, including: A sleeve with an accommodating groove inside and a frictional wall with an upper and lower narrow in the vertical direction of the accommodating groove, a narrowing on the bottom side of the sleeve and the outer edge of which can be positioned at a predetermined first One of the positioning parts of the plate; A fixing element having a head protruding above the sleeve, and a shaft extending downwards from the bottom of the head to penetrate into the accommodating groove of the sleeve, and the shaft downwards A locking part that can be positioned on a predetermined second plate is extended; and An elastic piece is sleeved on the outside of the shaft of the fixing element. The elastic piece has a first end that is narrower on the top side and a second end that is wider on the bottom side. When the fixing element is locked In the fixed position, the elastic member is compressed and rotated in the accommodating groove to form a smooth lock, and when the fixing element is unlocked and released, the elastic member rebounds and resets and the outer edge of the second end is received by the accommodating groove The friction wall surface resists and increases the resistance of unlocking and releasing. The locking device for preventing loosening according to claim 1, wherein the top side of the sleeve further has a positioning flange for an outer sleeve to be combined, and the outer sleeve has a head for the fixing element A storage space is accommodated, and the bottom side of the storage space is provided with a constricted wall surface that is engaged with the bottom side of the positioning flange, and a stop is provided on the top side of the outer sleeve to stop the head of the fixing element The outer surface of the outer sleeve is provided with a turning part, and the outer surface of the turning part is further provided with a plurality of anti-slip grooves in the shape of a concave arc. The locking device for preventing loosening according to claim 1, wherein the bottom side of the accommodating groove has a resisting portion for the second end of the elastic member to be a resist, and the first elastic member The end abuts against the bottom surface of the head of the fixing element, and the second end of the elastic member and the abutment A damping member with a C-shaped appearance is further provided between the holding parts. The damping member has a through hole for the locking part of the fixing element to pass through, and the damping member has at least a staggered upper surface. A plurality of step surfaces and a plurality of blocking walls, and the adjacent step surface and the blocking wall are in a mutually perpendicular structure. When the fixing element is locked and fixed in position, the end section of the second end of the elastic member is at The damping member slides on the steps to form a smooth lock, and when the fixing element is unlocked and released, the end of the second end of the elastic member abuts against one of the blocking walls of the damping member , And increase the resistance to unlock release. The anti-loosening locking device according to claim 3, wherein the upper and lower surfaces of the damping member are provided with a plurality of staggered steps and a plurality of blocking walls. The anti-loosening locking device according to claim 1, wherein the top surface of the head of the fixing element is provided with an actuating surface of a cross, an inner hexagonal groove, a pozier-shaped groove or a hexagonal convex column. The anti-loosening locking device according to claim 1, wherein the peripheral edge of the head of the fixing element is provided with a plurality of anti-slip patterns in an X shape. The locking device for preventing loosening according to claim 1, wherein the surface of the locking portion of the fixing element is provided with an external thread.

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