Anti-loosening assembly and disassembling tool and assembling and disassembling method thereof

Abstract

The invention discloses an anti-loosening assembly which comprises a first fastening piece and a second fastening piece which are matched with each other, and an anti-loosening assembly body used for limiting loosening of the two fastening pieces. The first fastening piece and the second fastening piece are in threaded connection, the anti-loosening assembly comprises an elastic non-return arc piece, and a first oblique edge structure matched with the elastic non-return arc piece is arranged on the outer side of the second fastening piece in the circumferential direction; a vertical limiting structure is arranged between the anti-loosening assembly and the first fastener. The vertical limiting structure comprises a vertical groove formed in the axial direction of the first fastener and a limiting block arranged on the anti-loosening assembly, and the vertical groove is in sliding fit with the limiting block. The bolt is sleeved with the anti-loosening assembly and the nut, after the nut is screwed down, the elastic non-return arc piece clamps the ratchet, the nut and the anti-loosening assembly cannot rotate relatively, the vertical groove and the limiting block are matched to limit the anti-loosening assembly and the bolt not to rotate relatively, the nut and the bolt are fixed through the anti-loosening assembly, and in the working environment with the strong vibration amplitude, the anti-loosening assembly and the nut cannot rotate relatively. The bolt and the nut are not prone to loosening relatively, and the one-way anti-loosening effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fasteners, and in particular to an anti-loosening component and a disassembly tool, and an assembly and disassembly method thereof. Background Art

[0002] Mechanical fasteners are used to fasten and assemble two specific workpieces. Generally, they are combined with two matching components to generate a pressing force to squeeze the workpieces together, such as bolts and nuts. In high-speed, highly vibrating mechanical equipment, such as trains, cars, airplanes, etc., mechanical fasteners may loosen the two matching components when subjected to strong external vibration and impact, resulting in the two workpieces not being relatively tightly fixed, thereby affecting the normal operation of the equipment and even causing safety accidents.

[0003] In the prior art, the anti-loosening method for mechanical fasteners is generally to add spring washers. However, for a working environment with a strong vibration amplitude, the anti-loosening effect of spring washers alone is not significant, and the connection part is still easy to loosen. Another anti-loosening method is to destroy or weld the connection after the two fasteners fix the workpieces, so as to achieve the effect that the two cannot slide relative to each other, making the fasteners not easy to loosen. However, after the connection is destroyed or welded, the mechanical fasteners can no longer be used. Moreover, when the workpiece needs to be disassembled, it needs to be cut open with a cutting machine, which makes the disassembly process complicated. Summary of the invention

[0004] The present invention is to overcome the shortcomings of the above-mentioned prior art and provide an anti-loosening assembly. The present invention sleeves the anti-loosening assembly and the nut on the bolt, and the elastic anti-return arc piece clamps the ratchet, so that the nut and the anti-loosening assembly cannot rotate relative to each other, and the cooperation of the vertical groove and the limit block limits the anti-loosening assembly and the bolt from rotating relative to each other. The nut and the bolt are fixed by the anti-loosening assembly, so that the bolt and the nut are not easy to loosen relative to each other in a working environment with strong vibration amplitude.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an anti-loosening component, including a first fastener and a second fastener that match each other, and also includes an anti-loosening component for limiting the second fastener from loosening relative to the first fastener.

[0006] Preferably, the second fastener sleeve is threadedly connected to the first fastener; the anti-loosening component is sleeved on the first fastener and is located above or below the second fastener.

[0007] Preferably, the anti-loosening component is located below the second fastener, and the anti-loosening component is provided with a gasket, and a wedge cone or anti-slip ridge is provided on the lower side of the gasket.

[0008] Preferably, the first fastener and the second fastener are threadedly connected, the anti-loosening assembly includes an elastic anti-return arc plate, and the outer circumference of the second fastener is provided with a first beveled edge structure matching the elastic anti-return arc plate; a vertical limiting structure is provided between the anti-loosening assembly and the first fastener.

[0009] Preferably, the anti-loosening assembly is provided with a receiving space allowing the elastic anti-return arc piece to move.

[0010] Preferably, a chamfer is provided on the lower side of the first bevel structure.

[0011] Preferably, the first fastener and the second fastener are threadedly connected, the anti-loosening assembly includes a clamping piece, and the outer circumference of the second fastener is provided with a second concave-convex structure matching the clamping piece; a vertical limiting structure is provided between the anti-loosening assembly and the first fastener.

[0012] Preferably, the anti-loosening component is provided with a through hole or a groove cooperating with the clamping piece.

[0013] Preferably, the clamping members are provided in plurality, and the plurality of clamping members are connected by elastic members.

[0014] Preferably, a second chamfer is provided on the lower side of the second concave-convex structure.

[0015] Preferably, the vertical limiting structure comprises a vertical groove arranged along the axial direction of the first fastener and a limiting block arranged on the anti-loosening component, and the vertical groove is slidably matched with the limiting block.

[0016] The present invention also provides a disassembly tool, comprising a disassembly handle, wherein the disassembly handle is provided with an extrusion piece for rotating and extruding the elastic non-return arc sheet.

[0017] Preferably, it further comprises a collar, the disassembly handle is provided with a collar hole, a connecting combined structure is provided on the collar hole and the collar; the collar is connected to the extrusion piece.

[0018] The present invention also provides a method for installing an anti-loosening assembly, comprising the following steps:

[0019] Step 1: Install the first fastener on the base member;

[0020] Step 2: Install the anti-loosening component on the first fastener;

[0021] Step 3: Tighten the second fastener onto the first fastener and cooperate with the anti-loosening component.

[0022] The present invention also provides a method for disassembling an anti-loosening assembly, comprising the following steps:

[0023] Step 1: Place the extrusion piece on the disassembly handle close to the elastic anti-return arc piece;

[0024] Step 2: Rotate the disassembly handle to drive the extrusion member to separate the elastic arc-stop sheet from the second fastener;

[0025] Step 3: Separate the first fastener from the second fastener.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are:

[0027] The anti-loosening component and the nut are put on the bolt. After the nut is tightened, the elastic anti-return arc piece clamps the ratchet, so that the nut and the anti-loosening component cannot rotate relative to each other, and the cooperation of the vertical groove and the limit block restricts the anti-loosening component and the bolt from rotating relative to each other. The nut and the bolt are fixed by the anti-loosening component. In a working environment with strong vibration amplitude, the bolt and the nut are not easy to loosen relatively, which plays a one-way anti-loosening role.

[0028] The anti-loosening component is provided with a receiving groove allowing the elastic arc-check piece to move, which is used to limit the position of the elastic arc-check piece, protect the elastic arc-check piece and the ratchet that move relatively, and improve the rigidity of the elastic arc-check piece.

[0029] The anti-loosening component and the nut are sleeved on the bolt, and after the nut is tightened, the clamping piece clamps the second concave-convex structure, so that the nut and the anti-loosening component cannot rotate relative to each other, and the cooperation of the vertical groove and the limit block limits the anti-loosening component and the bolt from rotating relative to each other. The nut and the bolt are fixed by the anti-loosening component, and in a working environment with strong vibration amplitude, the bolt and the nut are not easy to loosen relatively. Furthermore, it also prevents the nut from rotating in the tightening direction, which can play a role in bidirectional stopping of the nut.

[0030] The anti-loosening component is provided with a through hole or a groove matched with the clamping piece, which is used to limit the clamping piece and ensure the relative fixation of the clamping piece and the anti-loosening component body, so that the second concave-convex structure and the anti-loosening component can be fixed by the clamping piece.

[0031] The clamping piece is provided with a plurality of clamping pieces, and the plurality of clamping pieces are connected by elastic pieces. The elastic piece can be a C-shaped clamp spring, and the C-shaped clamp spring relies on elasticity to press the clamping piece inwards so that it can be well clamped in the rectangular tooth.

[0032] The underside of the gasket is provided with anti-slip edges to increase friction, which is suitable for situations where the base parts connected by bolts and nuts are metal; or a wedge cone is provided to penetrate into the base part to increase friction, which is suitable for wooden workpieces.

[0033] The lower side of the first bevel structure or the second concave-convex structure is provided with a chamfer 1 to prevent the first bevel structure, i.e. the bottom edge of the ratchet from mechanically biting when the nut is tightened, making it easier to tighten the nut.

[0034] The collar is put on the bolt, the extrusion piece is inserted between the elastic non-return arc pieces, the disassembly handle drives the collar to rotate, the elastic non-return arc piece is pressed into the receiving groove, so that it is disengaged from the ratchet, and the device can be disassembled by reversing the nut. The process is simple, convenient, easy to operate and reusable. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of the present invention in Example 1;

[0036] Figure 2 This is a schematic diagram of the disassembly of the present invention in Example 1;

[0037] Figure 3 This is a schematic diagram of disassembling the handle in Example 2;

[0038] Figure 4 This is a schematic diagram of the structure of the present invention in Example 3;

[0039] Figure 5 This is a schematic diagram of the disassembly of the present invention in Example 3;

[0040] Figure 6 This is a schematic diagram of a wedge cone in Example 1;

[0041] Figure 7 This is a schematic diagram of the anti-slip edge in Example 1;

[0042] Figure 8 It is a partial side view of the second fastener in Example 1;

[0043] Fig. 9 It is a partial side view of the second fastener in Example 3.

[0044] Description of reference numerals:

[0045] 1- first fastener;

[0046] 2- second fastener;

[0047] 3-disassembly handle, 31-hole, 32-ring, 33-extrusion piece;

[0048] 41-first bevel structure, 42-elastic arc-stop sheet, 43-accommodating space, 44-chamfer one;

[0049] 51-second concave-convex structure, 52-clamping member, 53-elastic member, 54-chamfer 2;

[0050] 61-wedge cone, 62-anti-slip edge, 63-gasket;

[0051] 71-vertical slot, 72-limiting block. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0053] Example 1

[0054] The present invention is further described with reference to the accompanying drawings, a loose-proof component, such as Figure 1 and 2 As shown,

[0055] The anti-loosening assembly includes a first fastener 1 and a second fastener 2 that match each other, and also includes an anti-loosening assembly for limiting the second fastener 2 from loosening relative to the first fastener 1. The anti-loosening assembly is sleeved on the first fastener 1 and is located below the second fastener 2.

[0056] The first fastener 1 and the second fastener 2 are respectively a bolt and a nut, which are threadedly connected. The anti-loosening component includes an elastic anti-return arc plate 42. The outer circumference of the second fastener 2 is provided with a first beveled edge structure 41 matching the elastic anti-return arc plate 42. The first beveled edge structure 41 can be a ratchet. A vertical limiting structure is provided between the anti-loosening component and the first fastener 1. The vertical limiting structure includes a vertical groove 71 arranged axially along the first fastener 1 and a limiting block 72 arranged on the anti-loosening component. The vertical groove 71 is slidably matched with the limiting block 72.

[0057] Pass the bolt through the two workpieces to be connected, put the anti-loosening assembly and the nut on the bolt, tighten the nut, and the ratchet on the nut rotates along the elastic anti-return arc plate 42. After the nut is tightened, the elastic anti-return arc plate 42 clamps the ratchet, so that the nut and the anti-loosening assembly cannot rotate relative to each other, and the cooperation of the vertical groove 71 and the limit block 72 limits the anti-loosening assembly to only vertical movement, and the anti-loosening assembly and the bolt cannot rotate relative to each other. The nut and the bolt are fixed by the anti-loosening assembly. In a working environment with strong vibration amplitude, the bolt and the nut are not easy to loosen relatively.

[0058] The anti-loosening component is provided with a receiving space 43 allowing the elastic arc-check piece 42 to move, that is, a recessed receiving groove, which is used to limit the position of the elastic arc-check piece 42, protect the elastic arc-check piece 42 and the ratchet in relative motion, and improve the rigidity of the elastic arc-check piece 42.

[0059] The anti-loosening component is provided with a gasket 63, and a wedge cone 61 or an anti-slip ridge 62 is provided on the lower side of the gasket 63. The anti-slip ridge 62 increases friction and is suitable for the case where the base piece connected by the bolt and nut is metal; the wedge cone 61 penetrates into the base piece to increase friction and is suitable for wooden workpieces.

[0060] The lower side of the first bevel structure 41 is provided with a chamfer 44 to prevent the first bevel structure 41, i.e. the bottom edge of the ratchet from mechanically biting when the nut is tightened, making it easier to tighten the nut.

[0061] Example 2

[0062] With respect to the anti-loosening assembly of Example 1, the present invention provides a disassembly tool, including a disassembly handle 3, which is provided with an extrusion piece 33 for rotating and extruding the elastic anti-return arc sheet 42. The disassembly tool also includes a collar 32, and the disassembly handle 3 is provided with a collar hole 31, and a connection combination structure is provided on the collar hole 31 and the collar 32; the collar 32 is connected to the extrusion piece 33.

[0063] The ring 32 is put on the bolt, and the extrusion piece 33 is inserted between the elastic anti-return arc pieces 42. The disassembly handle 3 drives the ring 32 to rotate, and the elastic anti-return arc piece 42 is pressed into the receiving groove to disengage it from the ratchet. The device can be disassembled by reversing the nut. The process is simple, convenient, easy to operate, and reusable.

[0064] Example 3

[0065] The anti-loosening assembly includes a first fastener 1 and a second fastener 2 that match each other, and also includes an anti-loosening assembly for limiting the second fastener 2 from loosening relative to the first fastener 1. The anti-loosening assembly is sleeved on the first fastener 1 and is located below the second fastener 2.

[0066] The first fastener 1 and the second fastener 2 are respectively a bolt and a nut, which are threadedly connected. The anti-loosening component includes a clamping component 52. The outer circumference of the second fastener 2 is provided with a second concave-convex structure 51 matching the clamping component 52. The second concave-convex structure 51 can be rectangular teeth. A vertical limiting structure is provided between the anti-loosening component and the first fastener 1.

[0067] Pass the bolt through the two workpieces to be connected, put the anti-loosening component and the nut on the bolt, tighten the nut, and the clamping piece 52 clamps the second concave-convex structure 51, so that the nut and the anti-loosening component cannot rotate relative to each other. The cooperation of the vertical groove 71 and the limit block 72 limits the anti-loosening component to only vertical movement, and the anti-loosening component and the bolt cannot rotate relative to each other. The nut and the bolt are fixed by the anti-loosening component. In a working environment with strong vibration amplitude, the bolt and the nut are not easy to loosen relatively. Furthermore, it also prevents the nut from rotating in the tightening direction, which can play a role in bidirectional stopping of the nut.

[0068] The anti-loosening component is provided with a through hole or a groove matched with the clamping piece 52 to limit the clamping piece 52 and ensure the relative fixation of the clamping piece 52 and the anti-loosening component body, so that the second concave-convex structure 51 and the anti-loosening component can be fixed by the clamping piece 52.

[0069] There are multiple clamping members 52, and the multiple clamping members 52 are connected by elastic members 53. The elastic member 53 can be a C-shaped clamp spring, which relies on elasticity to press the clamping member 52 inwards so that it can be well clamped in the rectangular teeth.

[0070] The lower side of the second concave-convex structure 51 is provided with a chamfer 54 to prevent the second concave-convex structure 51, i.e. the bottom edge of the rectangular teeth from mechanically biting when the nut is tightened, making it easier to tighten the nut.

[0071] Example 4

[0072] A method for installing an anti-loosening component comprises the following steps:

[0073] Step 1: Install the first fastener 1 on the base member;

[0074] Step 2: Install the anti-loosening component on the first fastener 1;

[0075] Step 3: Tighten the second fastener 2 onto the first fastener 1 and cooperate with the anti-loosening component.

[0076] Example 5

[0077] A method for disassembling an anti-loosening component comprises the following steps:

[0078] Step 1: Place the extrusion piece 33 on the disassembly handle 3 close to the elastic arc-stopping piece 42;

[0079] Step 2: Rotate the disassembly handle 3 to drive the extrusion member 33, so that the elastic arc-stopping piece 42 is separated from the second fastener;

[0080] Step 3: Separate the first fastener 1 from the second fastener 2.

[0081] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0082] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An anti-loosening assembly, comprising a first fastener (1) and a second fastener (2) that match each other, characterized in that: Also included is an anti-loosening assembly for limiting the loosening of the second fastener (2) relative to the first fastener (1); The second fastener (2) is sleeved and threadedly connected to the first fastener (1); the anti-loosening component is sleeved on the first fastener (1) and is located above or below the second fastener (2).

2. The anti-loosening assembly according to claim 1, characterized in that: The anti-loosening component is located below the second fastener (2), and the anti-loosening component is provided with a gasket (63), and a wedge cone (61) or an anti-slip ridge (62) is provided on the lower side of the gasket (63).

3. The anti-loosening assembly according to claim 1, characterized in that: The first fastener (1) and the second fastener (2) are threadedly connected, the anti-loosening assembly comprises an elastic anti-return arc sheet (42), and the outer circumference of the second fastener (2) is provided with a first oblique edge structure (41) matching the elastic anti-return arc sheet (42); a vertical limiting structure is provided between the anti-loosening assembly and the first fastener (1); The anti-loosening assembly is provided with a receiving space (43) allowing the elastic anti-return arc piece (42) to move.

4. The anti-loosening assembly according to claim 3, characterized in that: The lower side of the first bevel structure (41) is provided with a chamfer (44).

5. The anti-loosening assembly according to claim 1, characterized in that: The first fastener (1) and the second fastener (2) are threadedly connected, the anti-loosening assembly comprises a clamping member (52), and the outer circumference of the second fastener (2) is provided with a second concave-convex structure (51) matching the clamping member (52); a vertical limiting structure is provided between the anti-loosening assembly and the first fastener (1); The anti-loosening component is provided with a through hole or a groove which cooperates with the clamping piece (52); A plurality of the clamping members (52) are provided, and the plurality of the clamping members (52) are connected via an elastic member (53).

6. The anti-loosening assembly according to claim 5, characterized in that: A second chamfer (54) is provided on the lower side of the second concave-convex structure (51).

7. An anti-loosening assembly according to claim 3 or 5, characterized in that: The vertical limiting structure comprises a vertical groove (71) arranged along the axial direction of the first fastener (1) and a limiting block (72) arranged on the anti-loosening component, and the vertical groove (71) and the limiting block (72) are slidably matched.

8. A disassembly tool, comprising a disassembly handle (3), characterized in that: The disassembly handle (3) is provided with an extrusion piece (33) for rotating and extruding the elastic arc-stop sheet (42); It also comprises a collar (32); the disassembly handle (3) is provided with a collar hole (31); a connection combination structure is provided on the collar hole (31) and the collar (32); and the collar (32) is connected to an extrusion piece (33).

9. A method for installing an anti-loosening component, characterized in that: The following steps are involved: Step 1: Installing a first fastener (1) on a base member; Step 2: Install the anti-loosening component on the first fastener (1); Step 3: Tighten the second fastener (2) onto the first fastener (1) and engage with the anti-loosening assembly.

10. A method for disassembling an anti-loosening component, characterized in that: The following steps are involved: Step 1: placing the extrusion piece (33) on the disassembly handle (3) in close contact with the elastic arc-stopping piece (42); Step 2: Rotate the disassembly handle (3) to drive the extrusion member (33) so that the elastic arc-stopping piece (42) is separated from the second fastener; Step three: separating the first fastener (1) from the second fastener (2).

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