Quick-locking anti-loosening device and working method thereof

Abstract

The quick-locking anti-loosening device comprises a fixing plate, and a first V-shaped groove is formed in the upper end of a groove body on one side of the fixing plate; a lower plate is arranged at the lower part of the fixed plate; a second V-shaped groove is formed in the upper end of the lower plate; the upper portion of the fixing plate is slidably connected with a fixing shaft, the lower end of the fixing shaft is connected with a fixing cap, the upper end of the fixing shaft is provided with a first kidney-shaped hole, the fixing plate is rotatably connected with a rotating arm and a pressing plate, one end of the rotating arm is eccentrically provided with a rotating shaft, and the rotating shaft penetrates through the first kidney-shaped hole and then is riveted to the fixing shaft. A first elastic piece is arranged between the pressing plate and the fixing plate, and a boss is arranged at the other end of the pressing plate. According to the clamping device, the rotating arm is rotated, the second V-shaped groove can be gradually far away from the first V-shaped groove, the first V-shaped groove and the second V-shaped groove both abut against the dovetail groove guide rail, meanwhile, the boss can be embedded into the groove under the elastic force effect of the first elastic piece, and therefore the first V-shaped groove and the second V-shaped groove stably lock the dovetail groove guide rail.

Description

Technical Field

[0001] The invention belongs to the technical field of quick-release locking machinery, and in particular relates to a quick-locking anti-loosening device and a working method thereof. Background Art

[0002] At present, there are many quick-release locking mechanisms based on dovetail groove guide rails, and most of them are clamped on the dovetail groove guide rails through threaded connection mechanisms. However, general connection mechanisms are prone to loosening when exposed to impact and vehicle vibration; in addition, in some environments with small use space, limited operating space and long-term anti-loosening requirements, these connection mechanisms cannot be operated and adapted, and the anti-loosening effect is poor. Summary of the invention

[0003] In order to overcome the defects of the prior art, the present invention provides a quick-locking anti-loosening device and a working method thereof, which can stably lock a dovetail groove guide rail.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] In a first aspect, a quick-lock anti-loosening device is provided, comprising:

[0006] A fixing plate, wherein the upper end of the groove body on one side of the fixing plate is provided with a first V-shaped groove for abutting against one side of the dovetail groove guide rail;

[0007] A lower plate, the lower plate is slidably connected to the lower part of the fixed plate, and the upper end of the lower plate is provided with a second V-shaped groove for sliding into a groove body on one side of the fixed plate and abutting against the other side of the dovetail groove guide rail;

[0008] A fixed shaft, the fixed shaft is slidably connected to the upper part of the fixed plate, the lower end of the fixed shaft passes through the lower plate and is threadedly connected with a fixing cap, and the upper end of the fixed shaft is provided with a first waist-shaped hole;

[0009] A rotating arm, one end of which is rotatably connected to the fixed plate, one end of which is eccentrically provided with a rotating shaft, one end of which, away from the rotating arm, passes through the first waist-shaped hole and is riveted to the fixed shaft, and one end of the rotating arm is provided with a groove;

[0010] A pressing plate, one end of which is rotatably connected to the fixed plate, a first elastic member is arranged between the pressing plate and the fixed plate, and the other end of the pressing plate is provided with a boss for embedding into the groove under the elastic force of the first elastic member.

[0011] The beneficial effects of adopting the above technical solution are: by rotating the rotating arm, the second V-groove can gradually move away from the first V-groove, and both the first V-groove and the second V-groove can abut against the dovetail groove guide rail. At the same time, the boss can be embedded in the groove under the elastic force of the first elastic member, so that the first V-groove and the second V-groove can stably lock the dovetail groove guide rail.

[0012] Furthermore, the quick-locking anti-loosening device includes a screw, one end of which passes through the fixing plate and is threadedly connected to one side of the pressing plate.

[0013] The beneficial effect of adopting the above technical solution is that the pressing plate can be rotatably connected to the fixing plate by means of screws.

[0014] Furthermore, the first elastic member is a spring, and a first mounting groove for mounting the first elastic member is provided at the lower portion of the pressure plate.

[0015] Furthermore, two second elastic members axially symmetrical about the rotation axis are arranged between the fixed plate and the lower plate.

[0016] The beneficial effect of adopting the above technical solution is that the lower plate is acted upon by the elastic force of the second elastic member, and one end of the rotating arm can be pulled through the fixed shaft so that the one end of the rotating arm is tightly attached to the upper end of the fixed plate.

[0017] Furthermore, the quick-locking anti-loosening device includes a pin shaft, and the lower part of the lower plate is symmetrically provided with two pin holes for installing the pin shaft about the axis of the rotating shaft, and the upper end of the fixing cap is evenly provided with a plurality of hemispherical grooves along the circumferential direction for contacting the lower end of the pin shaft under the elastic force of the second elastic member.

[0018] The beneficial effects of adopting the above technical solution are as follows: the pin shaft contacts the hemispherical groove on the fixing cap under the elastic force of the second elastic member to achieve an anti-loosening effect; rotating the fixing cap can make the fixing cap rise or fall along the spiral line, so that the lower plate gradually approaches or moves away from the fixing plate, that is, the compression amount of the second elastic member also gradually increases or decreases. At the same time, in this process, the pin shaft can enter different hemispherical grooves, that is, it can achieve multi-speed tightening and anti-loosening or multi-speed loosening and anti-loosening.

[0019] Furthermore, the second elastic member is a spring, and the upper portion of the lower plate is provided with a second mounting groove for mounting the second elastic member.

[0020] Furthermore, a first arc surface is provided at the upper end of the fixed plate, a second arc surface rotatably connected to the first arc surface is provided at one end of the rotating arm, and a mounting hole for installing the rotating shaft is provided at one end of the rotating arm, and the axis of the mounting hole deviates from the axis of the second arc surface.

[0021] The beneficial effect of adopting the above technical solution is: the arrangement is such that the rotating arm can be rotatably connected to the upper end of the fixed plate, and at the same time, the rotating shaft can be eccentrically arranged at one end of the rotating arm.

[0022] Furthermore, the cross-sectional dimensions of the middle portion of the fixed shaft match the cross-sectional dimensions of the clamping groove on the dovetail groove guide rail.

[0023] The beneficial effect of adopting the above technical solution is: the arrangement is such that the middle part of the fixed shaft can be inserted into the slot on the dovetail groove guide rail, thereby limiting the dovetail groove guide rail.

[0024] Furthermore, a second waist-shaped hole for connecting with the device is provided on the other side of the fixing plate.

[0025] In a second aspect, a working method of a quick-lock anti-loosening device is provided, which comprises the following steps:

[0026] Rotate the rotating arm to horizontal so that the first V-shaped groove and the second V-shaped groove both abut against the dovetail groove guide rail, and at the same time, the boss is embedded in the groove under the elastic force of the first elastic member so that the first V-shaped groove and the second V-shaped groove lock the dovetail groove guide rail;

[0027] The pressing plate is pressed to make the boss come out of the groove, and then the rotating arm is rotated in the opposite direction to make the second V-shaped groove gradually move away from the first V-shaped groove and gradually release the dovetail groove guide rail.

[0028] The beneficial effects of the present invention are:

[0029] By rotating the rotating arm, the second V-shaped groove can be gradually moved away from the first V-shaped groove, and both the first V-shaped groove and the second V-shaped groove can abut against the dovetail groove guide rail. At the same time, the boss can be embedded in the groove under the elastic force of the first elastic member, so that the first V-shaped groove and the second V-shaped groove can stably lock the dovetail groove guide rail, and it is conducive to adapting to complex vibration environments;

[0030] The pin shaft contacts the hemispherical groove on the fixing cap under the elastic force of the second elastic member to achieve an anti-loosening effect; rotating the fixing cap can make the fixing cap rise or fall along the spiral line, so that the lower plate gradually approaches or moves away from the fixing plate, that is, the compression amount of the second elastic member also gradually increases or decreases. At the same time, in this process, the pin shaft can enter different hemispherical grooves, that is, it can achieve multi-speed tightening and anti-loosening or multi-speed loosening and anti-loosening, which is conducive to adapting to dovetail groove guide rails of different specifications and improving environmental adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0032] Figure 1 Shows a schematic diagram of the structure of the present invention;

[0033] Figure 2 Shows Figure 1 Rear view of

[0034] Figure 3 An exploded view of the present invention is shown;

[0035] Figure 4 A first cross-sectional view of the present invention is shown;

[0036] Figure 5 A second cross-sectional view of the present invention is shown;

[0037] Figure 6 A schematic diagram showing the structure of the present invention in a loosened state;

[0038] Figure 7 A schematic diagram showing the structure of the present invention in a locked state;

[0039] Figure 8 The schematic diagram of the structure of the dovetail groove guide rail in the present invention is shown;

[0040] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0041] Reference numerals:

[0042] 1. Rotating shaft; 2. Rotating arm; 3. Pressing plate; 4. Fixing plate; 5. Screw; 6. Fixing shaft; 7. Fixing cap; 8. Pin shaft; 9. Lower plate; 10. First elastic member; 11. Boss; 12. Groove; 13. Pin hole; 14. Hemispherical groove; 15. Dovetail groove guide rail; 16. Slot; 17. Second waist-shaped hole; 18-Second elastic member. DETAILED DESCRIPTION

[0043] The present invention will be further described below in conjunction with the accompanying drawings.

[0044] The present invention provides a quick-locking anti-loosening device, such as Figure 1-7 As shown, it includes:

[0045] A fixing plate 4, wherein the upper end of a groove body on one side of the fixing plate 4 is provided with a first V-shaped groove for abutting against one side of the dovetail groove guide rail 15;

[0046] The lower plate 9 is slidably connected to the lower part of the fixed plate 4, and the upper end of the lower plate 9 is provided with a second V-shaped groove for sliding into a groove body on one side of the fixed plate 4 and abutting against the other side of the dovetail groove guide rail 15;

[0047] The fixed shaft 6 is slidably connected to the upper part of the fixed plate 4. The lower end of the fixed shaft 6 passes through the lower plate 9 and is threadedly connected with a fixing cap 7. The upper end of the fixed shaft 6 is provided with a first waist-shaped hole;

[0048] A rotating arm 2, one end of which is rotatably connected to a fixed plate 4, an end of which is eccentrically provided with a rotating shaft 1, an end of which, away from the rotating arm 2, passes through a first waist-shaped hole and is riveted to a fixed shaft 6, and a groove 12 is provided at one end of the rotating arm 2;

[0049] The pressing plate 3 has one end rotatably connected to the fixed plate 4, a first elastic member 10 is arranged between the pressing plate 3 and the fixed plate 4, and the other end of the pressing plate 3 is provided with a boss 11 for embedding into the groove 12 under the elastic force of the first elastic member 10, and a prompt of "press down" is engraved on the pressing plate 3.

[0050] It can be understood that by rotating the rotating arm 2, the second V-groove can be gradually moved away from the first V-groove, and the first V-groove and the second V-groove can both abut against the dovetail groove guide rail 15. At the same time, the boss 11 can be embedded in the groove 12 under the elastic force of the first elastic member 10, so that the first V-groove and the second V-groove can stably lock the dovetail groove guide rail 15.

[0051] It should be noted that when the boss 11 is embedded in the groove 12 , the rotating arm 2 cannot rotate; after pressing the pressure plate 3 , the boss 11 is released from the groove 12 , and the rotating arm 2 can rotate.

[0052] In one embodiment, two second elastic members 18 are arranged between the fixed plate 4 and the lower plate 9 and are symmetrical about the axis of the rotating shaft 1 .

[0053] It is understandable that the lower plate 9 is acted upon by the elastic force of the second elastic member 18 and can pull one end of the rotating arm 2 through the fixed shaft 6 so that the one end of the rotating arm 2 is tightly attached to the upper end of the fixed plate 4 .

[0054] In one embodiment, the quick-locking anti-loosening device includes a pin shaft 8, and the lower part of the lower plate 9 is symmetrically provided with two pin holes 13 for installing the pin shaft 8 about the axis of the rotating shaft 1, and the upper end of the fixing cap 7 is evenly provided with a plurality of hemispherical grooves 14 along the circumferential direction for contacting the lower end of the pin shaft 8 under the elastic force of the second elastic member 18.

[0055] It can be understood that the pin shaft 8 contacts the hemispherical groove 14 on the fixing cap 7 under the elastic force of the second elastic member 18 to achieve an anti-loosening effect; rotating the fixing cap 7 can make the fixing cap 7 rise or fall along the spiral line, so that the lower plate 9 gradually approaches or moves away from the fixing plate 4, that is, the compression amount of the second elastic member 18 also gradually increases or decreases. At the same time, in this process, the pin shaft 8 can enter different hemispherical grooves 14, that is, it can achieve multi-speed tightening and anti-loosening or multi-speed loosening and anti-loosening.

[0056] It should be noted that the boundaries of two adjacent hemispherical grooves 14 are close to each other, that is, the pin 8 can immediately enter the other adjacent hemispherical groove 14 after escaping from one hemispherical groove 14 .

[0057] In one embodiment, the first elastic member 10 is a spring, and the lower part of the pressure plate 3 is provided with a first mounting groove for mounting the first elastic member 10 ; the second elastic member 18 is a spring, and the upper part of the lower plate 9 is provided with a second mounting groove for mounting the second elastic member 18 .

[0058] In one embodiment, the quick-locking anti-loosening device includes a screw 5 , one end of which passes through the fixing plate 4 and is threadedly connected to one side of the pressing plate 3 , that is, the pressing plate 3 can be rotatably connected to the fixing plate 4 by means of the screw 5 .

[0059] In one embodiment, a first arc surface is provided at the upper end of the fixed plate 4, and a second arc surface is provided at one end of the rotating arm 2 which is rotatably connected to the first arc surface, so that the rotating arm 2 can be rotatably connected to the upper end of the fixed plate 4; a mounting hole for installing the rotating shaft 1 is provided at one end of the rotating arm 2, and the axis of the mounting hole deviates from the axis of the second arc surface, so that the rotating shaft 1 is eccentrically set at one end of the rotating arm 2.

[0060] It should be noted that when the rotating arm 2 is horizontal, the axis of the rotating shaft 1 and the mounting hole is located directly above the axis of the second arc surface, that is, the waist hole connected to the rotating shaft 1 is at the highest position, the fixed shaft 6 is lifted to the highest position, and the distance between the second V-groove and the first V-groove is the shortest; after rotating the rotating arm 2, the axis positions of the rotating shaft 1 and the mounting hole move downward, and correspondingly, the positions of the waist hole and the fixed shaft 6 move downward, and the second V-groove gradually moves away from the first V-groove; wherein, when the rotating arm 2 is in a vertical upward state, the distance between the second V-groove and the first V-groove reaches the maximum value to loosen the dovetail groove guide rail 15.

[0061] In one embodiment, the cross-sectional dimension of the middle portion of the fixed shaft 6 matches the cross-sectional dimension of the slot 16 on the dovetail groove guide rail 15 , so that the middle portion of the fixed shaft 6 can be inserted into the slot 16 on the dovetail groove guide rail 15 , thereby limiting the dovetail groove guide rail 15 .

[0062] It should be noted that if Figure 1 and Figure 8 As shown, a slot 16 is vertically arranged in the middle of the dovetail groove guide rail 15, and the middle of the fixed shaft 6 can be inserted into the slot 16 to limit the lateral movement of the dovetail groove guide rail 15, while the first V-groove and the second V-groove can limit the vertical movement of the dovetail groove guide rail 15, which is beneficial to enhance the limiting effect of the dovetail groove guide rail 15; specifically, the cross-section of the middle of the fixed shaft 6 can be square.

[0063] In one embodiment, a second waist-shaped hole 17 for connecting with a device is provided on the other side of the fixing plate 4 .

[0064] It should be noted that the equipment can be fixed to the quick-lock anti-loosening device through the second waist-shaped hole 17 on the fixing plate 4, and corresponding holes can also be set on the dovetail groove guide rail 15 for fixing to various platforms, so as to achieve locking or loosening of the equipment at the platform end.

[0065] The present invention also provides a working method of a quick-locking anti-loosening device, which comprises the following steps:

[0066] Rotate the rotating arm 2 to a horizontal position so that the first V-shaped groove and the second V-shaped groove both abut against the dovetail groove guide rail 15. At the same time, the boss 11 is embedded in the groove 12 under the elastic force of the first elastic member 10 so that the first V-shaped groove and the second V-shaped groove lock the dovetail groove guide rail 15.

[0067] Press the pressing plate 3 to make the boss 11 come out of the groove 12, and then rotate the rotating arm 2 in the opposite direction to make the second V-shaped groove gradually move away from the first V-shaped groove and gradually release the dovetail groove guide rail 15;

[0068] The fixing cap 7 is rotated to make the fixing cap 7 rise along the spiral line, so that the lower plate 9 gradually approaches the fixing plate 4, thereby gradually increasing the compression amount of the second elastic member 18, and the pin 8 enters different hemispherical grooves 14, so as to achieve multi-level tightening and anti-loosening;

[0069] The fixing cap 7 is rotated in the opposite direction to make it descend along the spiral line, so that the lower plate 9 gradually moves away from the fixing plate 4, thereby gradually reducing the compression amount of the second elastic member 18, and the pin shaft 8 enters different hemispherical grooves 14 to achieve multi-level loosening and anti-loosening.

[0070] In summary, the present invention has the advantages of small size, simple and compact structure, and convenient use and maintenance. It can be quickly installed on the dovetail groove guide rail 15. The dovetail groove guide rail 15 is released by pressing the pressure plate 3 and rotating the rotating shaft 1 counterclockwise. Otherwise, the quick-locking anti-loosening device is in a stable locking state, which can adapt to complex vibration environments.

[0071] In addition, the present invention can adjust the distance between the fixed plate 4 and the lower plate 9 by rotating the fixing cap 7 to achieve multi-level tightening and anti-loosening or multi-level loosening and anti-loosening, which is conducive to adapting to dovetail groove guide rails 15 of different specifications, and can achieve multi-level tightness adjustment, and has strong environmental adaptability.

[0072] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0073] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A quick-lock anti-loosening device, characterized in that: include: A fixing plate (4), wherein the upper end of a groove body on one side of the fixing plate (4) is provided with a first V-shaped groove for abutting against one side of a dovetail groove guide rail (15); A lower plate (9), the lower plate (9) being slidably connected to the lower part of the fixed plate (4), and the upper end of the lower plate (9) being provided with a second V-shaped groove for sliding into a groove body on one side of the fixed plate (4) and abutting against the other side of the dovetail groove guide rail (15); A fixed shaft (6), the fixed shaft (6) being slidably connected to the upper part of the fixed plate (4), the lower end of the fixed shaft (6) passing through the lower plate (9) and then being threadedly connected to a fixed cap (7), and the upper end of the fixed shaft (6) being provided with a first waist-shaped hole; A rotating arm (2), one end of the rotating arm (2) being rotatably connected to the fixed plate (4), one end of the rotating arm (2) being eccentrically provided with a rotating shaft (1), one end of the rotating shaft (1) away from the rotating arm (2) passing through the first waist-shaped hole and then being riveted to the fixed shaft (6), and one end of the rotating arm (2) being provided with a groove (12); A pressing plate (3), one end of the pressing plate (3) is rotatably connected to the fixing plate (4), a first elastic member (10) is arranged between the pressing plate (3) and the fixing plate (4), and the other end of the pressing plate (3) is provided with a boss (11) for embedding into the groove (12) under the elastic force of the first elastic member (10).

2. The quick-lock anti-loosening device according to claim 1, characterized in that: It comprises a screw (5), one end of which passes through the fixing plate (4) and is threadedly connected to one side of the pressing plate (3).

3. The quick-lock anti-loosening device according to claim 1, characterized in that: The first elastic member (10) is a spring, and a first mounting groove for mounting the first elastic member (10) is provided at the lower part of the pressing plate (3).

4. The quick-lock anti-loosening device according to claim 1, characterized in that: Two second elastic members (18) are arranged between the fixed plate (4) and the lower plate (9) and are symmetrical about the axis of the rotating shaft (1).

5. The quick-lock anti-loosening device according to claim 4, characterized in that: It comprises a pin shaft (8), the lower part of the lower plate (9) is symmetrically provided with two pin holes (13) for mounting the pin shaft (8) about the axis of the rotating shaft (1), and the upper end of the fixing cap (7) is evenly provided with a plurality of hemispherical grooves (14) along the circumferential direction for contacting the lower end of the pin shaft (8) under the elastic force of the second elastic member (18).

6. The quick-lock anti-loosening device according to claim 4, characterized in that: The second elastic member (18) is a spring, and the upper portion of the lower plate (9) is provided with a second mounting groove for mounting the second elastic member (18).

7. The quick-lock anti-loosening device according to claim 1, characterized in that: The upper end of the fixing plate (4) is provided with a first arc surface, one end of the rotating arm (2) is provided with a second arc surface rotatably connected to the first arc surface, and one end of the rotating arm (2) is provided with a mounting hole for mounting the rotating shaft (1), and the axis of the mounting hole deviates from the axis of the second arc surface.

8. The quick-lock anti-loosening device according to claim 1, characterized in that: The cross-sectional dimensions of the middle portion of the fixed shaft (6) match the cross-sectional dimensions of the clamping groove (16) on the dovetail groove guide rail (15).

9. The quick-lock anti-loosening device according to claim 1, characterized in that: The other side of the fixing plate (4) is provided with a second waist-shaped hole (17) for connecting with equipment.

10. A working method of the quick-locking anti-loosening device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The rotating arm (2) is rotated to a horizontal position so that the first V-shaped groove and the second V-shaped groove both abut against the dovetail groove guide rail (15); at the same time, the boss (11) is embedded in the groove (12) under the elastic force of the first elastic member (10), so that the first V-shaped groove and the second V-shaped groove lock the dovetail groove guide rail (15); The pressing plate (3) is pressed to make the boss (11) disengage from the groove (12), and then the rotating arm (2) is rotated in the opposite direction to make the second V-shaped groove gradually move away from the first V-shaped groove and gradually release the dovetail groove guide rail (15).

Images