Bolt anti-loosening fastener

Abstract

The utility model relates to the technical field of bolt fasteners, in particular to a bolt anti-loosening fastener. According to the technical scheme, the bolt comprises a bolt column, a gasket and a nut, the bolt column comprises a bolt cap and a column body, two sets of clamping grooves are formed in the outer ring of the bolt cap, the gasket comprises a metal gasket, rubber pads are arranged on the upper side and the lower side of the metal gasket, and multiple sets of elastic protruding pads are arranged on the sides, away from each other, of the two sets of rubber pads. Two sets of connecting plates are arranged on the outer ring of the metal gasket, and rubber clamping blocks are arranged on the sides, close to each other, of the two sets of connecting plates. Through the arrangement of the rubber pad and the elastic convex pad on the gasket, the stability of the bolt column and the nut in the installation state can be improved, meanwhile, through the arrangement of the connecting plate, the rubber clamping block, the rubber limiting block, the clamping groove and the limiting groove which are matched and buckled, the friction force between the bolt column and a workpiece can be increased, and meanwhile the bolt column can be limited; and the situation that the bolt column is loosened when the workpiece vibrates during operation is greatly avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt fastener technical field especially relates to a bolt anti-loosening fastener. BACKGROUND

[0002] Bolt fastener is the assembly commonly used in mechanical connection, is mainly used for connecting and fixed different components, usually by bolt, nut and washer are composed. The prior art is mostly used bolt fastening when installing workpiece, simple and convenient operation is fast, can guarantee the stability of workpiece simultaneously, but the workpiece will produce vibration when operating, under the action of long time vibration, make bolt appear loosening condition, thereby can make workpiece appear security risk in the operating state. For this reason, we specially propose a bolt anti-loosening fastener. SUMMARY

[0003] The utility model relates to a bolt anti-loosening fastener for solving the problems in the prior art.

[0004] The utility model discloses a bolt anti-loosening fastener, including the bolt column, washer and nut, the bolt column includes the bolt cap and the column body, the outer ring of bolt cap is equipped with two sets of clamping grooves, the outer ring of column body is equipped with the thread groove, the washer is set up in the outer ring of column body, the washer includes the metal washer, the upper and lower sides of metal washer are provided with rubber pad, two sets of rubber pad are provided with a plurality of elastic convex pad away from each other side, the outer ring of metal washer is provided with two sets of connecting plates, two sets of connecting plates are provided with rubber clamping block close to each other side, every group rubber clamping block both sides are provided with rubber limiting block, the nut is set up in the outer ring of column body, and the inner ring of nut is provided with internal thread.

[0005] Preferably, one end of the column body corresponds to the lower part of the bolt cap, and a dismounting hole is formed in the upper part of the bolt cap.

[0006] Preferably, the two sets of clamping grooves are symmetrically arranged, and limiting grooves are formed in the two sides of the two sets of clamping grooves.

[0007] Preferably, the two sets of rubber pads are respectively installed on the upper and lower sides of the metal washer close to each other side, and the installation end of each set of elastic convex pads is installed on one side of the rubber pad.

[0008] Preferably, the two sets of connecting plates are installed on the outer ring of the rubber pad close to each other side, one side of the rubber clamping block is installed on the connecting plate, and the installation end of the rubber limiting block is installed on the rubber clamping block.

[0009] Preferably, the connecting plate is arranged in an arc shape, the inner wall of the connecting plate is matched with the outer ring of the bolt cap, the two groups of rubber clamping blocks are installed in the two groups of clamping grooves in correspondence, and the rubber limiting blocks are installed in the limiting grooves in correspondence.

[0010] Preferably, the inner thread is installed in the inner ring of the nut in correspondence, the cross section of the inner thread is arranged in a trapezoidal shape, and the inner thread is installed in the threaded groove in correspondence.

[0011] Compared with the prior art, the utility model has the beneficial technical effects that:

[0012] The utility model discloses a simple overall structure, and the nut and the bolt column can be used for tightening and fixing the workpiece through the cooperation of the column, the threaded groove and the nut and the inner thread, the stability of the bolt column and the nut in the installation state can be improved through the rubber pad and the elastic convex pad on the gasket, the friction between the bolt column and the workpiece can be improved through the cooperation of the connecting plate, the rubber clamping block, the rubber limiting block, the clamping groove and the limiting groove, and the bolt column can be limited, and the bolt column can be prevented from loosening when the workpiece vibrates. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an overall structure schematic view of the utility model;

[0014] Figure 2 It is a structure schematic view of the bolt column in the utility model;

[0015] Figure 3 It is Figure 2 It is an enlarged structure schematic view of position A in the utility model;

[0016] Figure 4 It is a structure schematic view of the gasket in the utility model;

[0017] Figure 5 It is Figure 4 It is an enlarged structure schematic view of position B in the utility model;

[0018] Figure 6 It is a structure schematic view of the nut in the utility model.

[0019] Reference signs: 1, bolt column; 11, bolt cap; 111, clamping groove; 112, dismounting hole; 113, limiting groove; 12, column; 121, threaded groove; 2, gasket; 21, metal gasket; 22, rubber pad; 23, elastic convex pad; 24, connecting plate; 25, rubber clamping block; 26, rubber limiting block; 3, nut; 31, inner thread. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be further described below in combination with the drawings and specific embodiments.

[0021] Embodiment

[0022] As Figures 1-6 shown, the utility model provides a bolt anti-loosening fastener, including peg post 1, washer 2 and nut 3, peg post 1 includes peg cap 11 and cylinder 12, is set up dismounting hole 112 on peg cap 11 top, dismounting hole 112 is set up in concave shape, the outer ring of peg cap 11 is set up in circle, the setting of dismounting hole 112 can make operator through special wrench to peg cap 11 carry out rotation dismounting, the lower side of cylinder 12 one end with peg cap 11 corresponds and installs, cylinder 12 one end with peg cap 11 lower side fixedly connected, peg cap 11 and cylinder 12 are set up integrally;

[0023] The gasket 2 is sleeved on the outer ring of the column body 12, and the gasket 2 comprises a metal gasket 21, rubber pads 22 are arranged on the upper and lower sides of the metal gasket 21, two groups of rubber pads 22 are arranged on the sides close to each other and are respectively installed on the upper and lower sides of the metal gasket 21 in a corresponding manner, the rubber pads 22 are fixedly connected with the metal gasket 21, the rubber pads 22 can increase the friction force on the upper and lower sides of the metal gasket 21, so that the bolt column 1 is more stable in the installed state, and the bolt column 1 can be well prevented from loosening when being tightly installed on the workpiece, the metal gasket 21 can increase the strength of the two groups of rubber pads 22, so that the two groups of rubber pads 22 can be better installed at the positions below the bolt cap 11 and above the workpiece, a plurality of groups of elastic convex pads 23 are arranged on the sides away from each other of the two groups of rubber pads 22, the installation end of each group of elastic convex pads 23 is installed on one side of the rubber pad 22 in a corresponding manner, the elastic convex pads 23 are fixedly connected with the rubber pads 22, the elastic convex pads 23 can further increase the friction force on the two sides of the rubber pads 22, so that the bolt column 1 is more stable when being tightly installed on the workpiece, and the elastic convex pads 23 and the rubber pads 22 can avoid loosening of the bolt column 1 due to vibration when the bolt column 1 is installed on the workpiece, the bolt cap 11 is provided with two groups of clamping grooves 111, the two groups of clamping grooves 111 are symmetrically arranged, limit grooves 113 are arranged on the two sides of the two groups of clamping grooves 111, the metal gasket 21 is provided with two groups of connecting plates 24, the connecting plates 24 are arranged in an arc shape, the two groups of connecting plates 24 are installed on the outer ring of the rubber pad 22 on the sides close to each other in a corresponding manner, the inner walls of the two groups of connecting plates 24 are respectively fixedly connected with the outer rings of the metal gasket 21 and the rubber pad 22, one side of the inner wall of the connecting plate 24 is in close contact with the outer ring of the bolt cap 11, the two groups of connecting plates 24 are respectively provided with rubber clamping blocks 25 on the sides close to each other, one side of the rubber clamping block 25 is installed on the connecting plate 24 in a corresponding manner, one side of the rubber clamping block 25 is fixedly connected with the connecting plate 24, the two groups of rubber clamping blocks 25 are installed on the two groups of clamping grooves 111 in a corresponding manner, one end of the rubber clamping block 25 is clamped in the inner cavity of the clamping groove 111 when the bolt column 1 is in the installed state, the two sides of each rubber clamping block 25 are respectively provided with rubber limiting blocks 26, the installation end of the rubber limiting block 26 is installed on the rubber clamping block 25 in a corresponding manner, the installation end of the rubber limiting block 26 is fixedly connected with the rubber clamping block 25, and the rubber limiting block 26 is installed on the limit groove 113 in a corresponding manner, the rubber limiting block 26 is clamped in the limit groove 113 in a corresponding manner when the rubber clamping block 25 is clamped in the clamping groove 111, and the rubber clamping block 25, the rubber limiting block 26, the clamping groove 111 and the limit groove 113 are clamped in a corresponding manner, so that the bolt column 1 in the installed state can be positioned, thereby avoiding loosening of the bolt column 1 in the installed state, further improving the installation tightness of the bolt column 1, and the gasket 2 can improve the stability of the bolt column 1 in the installed state in multiple directions, thereby greatly avoiding loosening of the bolt column 1;

[0024] The nut 3 is sleeved on the outer ring of the column 12, the outer ring of the column 12 is provided with a threaded groove 121, the inner ring of the nut 3 is provided with an internal thread 31, the internal thread 31 is correspondingly installed with the inner ring of the nut 3, the internal thread 31 is fixedly connected with the nut 3, the cross section of the internal thread 31 is provided in a trapezoidal shape, the internal thread 31 is correspondingly installed with the threaded groove 121, and the internal thread 31 is in threaded connection with the threaded groove 121 when the nut 3 is in the installed state with the column 12, the internal thread 31 provided in the trapezoidal shape can better increase the contact area between the internal thread 31 and the threaded groove 121 when the internal thread 31 is in the assembled state with the threaded groove 121, so that the nut 3 is more stable when the nut 3 is in the state with the bolt column 1, and the fastening of the whole equipment in the assembled state is improved.

[0025] In the embodiment, when the operator needs to fasten and assemble the workpiece, first, the gasket 2 is sleeved on the outer ring of the column 12, so that the gasket 2 is in the pre-assembled state with the bolt column 1, at this time, the connecting plate 24 and the outer ring of the bolt cap 11 are mutually attached, the rubber clamping block 25 and the clamping groove 111 are mutually buckled, and the rubber limiting block 26 and the limiting groove 113 are mutually buckled, then the operator inserts the bolt column 1 with the gasket 2 into the bolt hole in the position below the bolt hole reserved on the workpiece, so that the end of the column 12 away from the bolt cap 11 corresponds to the inner ring of the nut 3, then the operator rotates the special wrench corresponding to the dismounting hole 112, so that the bolt column 1 and the nut 3 are in the threaded connection state through the threaded groove 121 and the internal thread 31, the bolt cap 11 is continuously rotated, so that one side of the nut 3 is tightly attached to the lower part of the workpiece, at this time, the rubber pad 22 and the elastic convex pad 23 are in the extrusion state, so that the fastening and assembly work of the workpiece is completed.

[0026] The above specific embodiments are only preferred embodiments of the utility model, and based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A bolt anti-loosening fastener comprising a stud (1), a washer (2) and a nut (3), characterized in that: The post (1) comprises a post cap (11) and a post body (12), the outer ring of the post cap (11) is provided with two groups of clamping grooves (111), the outer ring of the post body (12) is provided with a threaded groove (121), the gasket (2) is sleeved on the outer ring of the post body (12), the gasket (2) comprises a metal gasket (21), the upper and lower sides of the metal gasket (21) are provided with rubber pads (22), the two groups of rubber pads (22) are provided with a plurality of groups of elastic convex pads (23) away from each other on one side, the outer ring of the metal gasket (21) is provided with two groups of connecting plates (24), the two groups of connecting plates (24) are provided with rubber clamping blocks (25) close to each other on one side, and the two sides of each group of rubber clamping blocks (25) are provided with rubber limiting blocks (26); the nut (3) is sleeved on the outer ring of the post body (12), and the inner ring of the nut (3) is provided with an internal thread (31).

2. A bolted fastener to prevent loosening according to claim 1, wherein, One end of the post body (12) is correspondingly mounted below the post cap (11), and a dismounting hole (112) is formed in the upper portion of the post cap (11).

3. A bolted fastener to prevent loosening as claimed in claim 1 wherein, The two groups of clamping grooves (111) are symmetrically arranged, and limiting grooves (113) are formed in the two sides of the two groups of clamping grooves (111).

4. A bolted fastener to prevent loosening as claimed in claim 1 wherein, The two groups of rubber pads (22) are correspondingly mounted on the upper and lower sides of the metal gasket (21) close to each other, and the mounting end of each group of elastic convex pads (23) is correspondingly mounted on one side of the rubber pad (22).

5. A bolted fastener to prevent loosening as defined in claim 1 wherein, The two groups of connecting plates (24) are correspondingly mounted on the outer ring of the rubber pad (22) close to each other, one side of the rubber clamping block (25) is correspondingly mounted on the connecting plate (24), and the mounting end of the rubber limiting block (26) is correspondingly mounted on the rubber clamping block (25).

6. A bolt lock washer according to claim 3, wherein The connecting plate (24) is arranged in an arc shape, one side of the inner wall of the connecting plate (24) is in close contact with the outer ring of the post cap (11), the two groups of rubber clamping blocks (25) are correspondingly mounted on the two groups of clamping grooves (111), and the rubber limiting block (26) is correspondingly mounted on the limiting groove (113).

7. A bolt lock washer according to claim 1 wherein, The internal thread (31) is correspondingly mounted on the inner ring of the nut (3), the cross section of the internal thread (31) is arranged in a trapezoidal shape, and the internal thread (31) is correspondingly mounted on the threaded groove (121).

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