Anti-loosening fastening bolt

Abstract

The utility model belongs to the technical field of fixing, and particularly relates to an anti-loosening fastening bolt which comprises a bolt body. The middle part of the bolt body is rotationally connected with a nut body; a retention groove is formed in the middle of the nut body; a plurality of groups of elastic clamping plates are fixedly connected to the middle part of the retention groove; a plurality of groups of grooves are formed in the middle of the nut body; the middle part of the groove is fixedly connected with a spring rod; a sliding groove is formed in the middle of the nut body. A sliding block is slidably connected to the middle of the sliding groove. A supporting rod is hinged to the middle of the sliding block. According to the step, the fixing effect between the nut body and the bolt body can be improved through the elastic effect of the elastic clamping plate, the situation that the nut body rotates in the middle of the bolt body due to shaking is reduced, and then the stability when the bolt body is used can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixing, specifically is a fastening bolt of anti loosening. BACKGROUND

[0002] Bolt is used as fastener in various engineering and construction, it can connect various components and structure more firmly together, and then ensure the stability and safety of the overall structure, the application of bolt is more extensive, from simple furniture assembly to large building, bridge construction etc.

[0003] Two or more parts can be firmly connected together by using bolt, prevent relative displacement, ensure the stability and safety between components, and the static and dynamic load between connected components can be borne by using bolt, and the force between connected components can be adjusted by adjusting the fastening degree.

[0004] In the process of using bolt, the nut will rotate in the middle of the bolt because of continuous vibration or extrusion, and then the bolt will loosen, and the fastening effect on parts will be lost in serious cases, therefore, the fastening bolt of anti loosening is provided for the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the deficiency of prior art, solve at least one technical problem put forward in the background art, the utility model provides a fastening bolt of anti loosening.

[0006] The utility model discloses a fastening bolt of anti loosening, including bolt body, the middle part of bolt body is rotatably connected with nut body, characterized by: the middle part of nut body is equipped with the retaining groove, the middle part of retaining groove is fixedly connected with multiple elastic clamping plates.

[0007] Preferably, the middle part of the nut body is provided with a plurality of grooves, and the middle part of the groove is fixedly connected with a spring rod.

[0008] Preferably, the middle part of the nut body is provided with a sliding groove, and the middle part of the sliding groove is slidably connected with a sliding block, and the middle part of the sliding block is hingedly connected with a support rod.

[0009] Preferably, the middle part of the bolt body is fixedly connected with a plurality of abrasive lines.

[0010] Preferably, the middle part of the bolt body is slidably connected with a spring pad.

[0011] Preferably, the end of the spring rod is fixedly connected with a rubber pad.

[0012] Preferably, the middle part of the nut body is fixedly connected with a plurality of friction strips.

[0013] The utility model discloses a beneficial effect lies in:

[0014] The utility model discloses a fastening bolt of anti -loosening can improve the fixed effect between nut body and bolt body through the elastic effect of elastic card board, reduces the situation of the rotation of nut body in the middle part of bolt body due to the shaking, and can further improve the stability when using the bolt body.

[0015] The utility model discloses a fastening bolt of anti -loosening can be rotated and fixed in the middle part of bolt body after nut body, can reduce the situation of the fixed instability of nut body in the middle part of bolt body due to the shaking, further improve the stability of nut body, reduce the situation of the upward sliding of nut body in the middle part of bolt body. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, other drawings can also be obtained according to these drawings without the creative labor.

[0017] Figure 1 It is the three-dimensional structure schematic diagram in the utility model;

[0018] Figure 2 It is the elastic card board structure schematic diagram in the utility model;

[0019] Figure 3 It is Figure 2 The enlarged view of A of

[0020] Figure 4 It is the enlarged view of B of Figure 1 .

[0021] In the drawing: 1, bolt body;11, nut body;12, retaining groove;13, elastic card board;2, recess;21, spring rod;3, sliding slot;31, sliding block;32, support rod;4, grinding line;5, spring pad;6, rubber pad;7, friction strip. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiment of the utility model will be clearly and completely described in the following by combining the drawings in the embodiment of the utility model, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled person in the art without the creative labor belong to the scope of protection of the utility model.

[0023] As Figures 1-2 shown, a loosening-preventing fastening bolt, comprising a bolt body 1; a nut body 11 is rotatably connected to the middle of the bolt body 1; a retaining groove 12 is formed in the middle of the nut body 11; a plurality of elastic clamping plates 13 are fixedly connected to the middle of the retaining groove 12; in use, after the nut body 11 is rotated and placed in the middle of the bolt body 1, the elastic clamping plates 13 in the middle of the retaining groove 12 will move downward together with the nut body 11, when the nut body 11 contacts the part to be fastened, the end of the elastic clamping plate 13 will rub against it, and then the elastic clamping plate 13 will deform by its own elastic force, when the bolt body 1 and the nut body 11 are used to fasten the part, the elastic clamping plate 13 can extrude the part, this step can improve the fixing effect between the nut body 11 and the bolt body 1, reduce the situation that the nut body 11 rotates in the middle of the bolt body 1 due to shaking, and then the stability of using the bolt body 1 can be improved.

[0024] As Figures 2-3 shown, a plurality of grooves 2 are formed in the middle of the nut body 11; spring rods 21 are fixedly connected to the middle of the grooves 2; in use, when the bolt body 1 and the nut body 11 are used to fix the part, the end of the groove 2 can rub against the part to be fixed, at this time the spring rod 21 in the middle of the groove 2 will shrink back to the middle of the groove 2 after contacting the part, this step can reduce the situation that the nut body 11 is not fixed stably in the middle of the bolt body 1 due to shaking after the nut body 11 is rotated and fixed in the middle of the bolt body 1, further improve the stability of the nut body 11, and reduce the situation that the nut body 11 slides upward in the middle of the bolt body 1.

[0025] As Figures 1-4 shown, a sliding groove 3 is formed in the middle of the nut body 11; a sliding block 31 is slidably connected to the middle of the sliding groove 3; a support rod 32 is hingedly connected to the middle of the sliding block 31; in use, after the nut body 11 and the bolt body 1 are used to fix the part, the sliding block 31 can slide in the middle of the sliding groove 3, and then the end of the support rod 32 can be placed in the middle of the thread of the bolt body 1, this step can use the support rod 32 to extrude and fix the nut body 11 after the part is fixed, and then when the bolt body 1 is used, the situation that the nut body 11 slides upward from the middle of the bolt body 1 can be reduced, and then the stability of using the bolt body 1 can be improved.

[0026] As Figure 1As shown in the figure, the middle of the bolt body 1 is connected with a plurality of groups of grinding lines 4; when the bolt body 1 and the nut body 11 are used to fix the parts, the grinding lines 4 can be in contact with the parts, and by tightening the nut body 11, the pressure between the grinding lines 4 and the parts can be increased, which can increase the friction between the grinding lines 4 and the parts, and further reduce the rotation of the fixed parts.

[0027] As shown in the figure, Figure 1 The middle of the bolt body 1 is connected with a spring pad 5; when the parts are fixed, the spring pad 5 can be placed in the middle of the bolt body 1, which can increase the pressure between the bolt body 1 and the nut body 11 by the action of the spring pad 5, and further reduce the loosening of the nut body 11 caused by insufficient pressure.

[0028] As shown in the figure, Figures 2-3 The end of the spring rod 21 is connected with a rubber pad 6; when the spring rod 21 is in contact with the parts, the rubber pad 6 can be placed between the end of the spring rod 21 and the parts, which can increase the friction between the end of the spring rod 21 and the parts by the action of the rubber pad 6, and further reduce the loosening of the nut body 11 caused by shaking.

[0029] As shown in the figure, Figures 1-4 The middle of the nut body 11 is connected with a plurality of groups of friction strips 7; when the nut body 11 needs to be tightened, the friction strips 7 can increase the friction of the middle of the nut body 11, which can increase the efficiency of tightening the nut body 11 when it needs to be rotated, and reduce the difficulty of rotating the nut body 11.

[0030] The working principle is that when the nut body 11 is rotated and placed in the middle of the bolt body 1, the elastic clamping plate 13 in the middle of the retaining groove 12 will move downward with the nut body 11, and when the nut body 11 contacts the part to be fastened, the end of the elastic clamping plate 13 will rub against it, and then the elastic clamping plate 13 will deform by its own elasticity. When the bolt body 1 and the nut body 11 are used to fasten the part, the elastic clamping plate 13 can extrude the part, which can improve the fixing effect between the nut body 11 and the bolt body 1, reduce the rotation of the nut body 11 in the middle of the bolt body 1 due to shaking, and improve the stability of the bolt body 1 in use. When the bolt body 1 and the nut body 11 are used to fix the part, the end of the groove 2 can rub against the part to be fixed, and at this time the spring rod 21 in the middle of the groove 2 will contract back to the middle of the groove 2 after contacting the part. This step can reduce the instability of the nut body 11 in the middle of the bolt body 1 due to shaking after the nut body 11 is rotated and fixed in the middle of the bolt body 1, further improve the stability of the nut body 11, and reduce the upward sliding of the nut body 11 in the middle of the bolt body 1. After the nut body 11 and the bolt body 1 are used to fix the part, the sliding block 31 can slide in the middle of the sliding groove 3, and then the end of the support rod 32 can be placed in the middle of the thread of the bolt body 1. This step can use the support rod 32 to extrude and fix the nut body 11 after fixing the part, which can reduce the upward sliding of the nut body 11 from the middle of the bolt body 1 when the bolt body 1 is used, thereby improving the stability of the bolt body 1 in use. When the bolt body 1 and the nut body 11 are used to fix the part, the abrasive pattern 4 can contact the part, and by tightening the nut body 11, the pressure between the abrasive pattern 4 and the part can be increased. This step can increase the friction between the abrasive pattern 4 and the part by increasing the pressure between them, thereby reducing the rotation of the part after being fixed. When fixing the part, the spring pad 5 can be placed in the middle of the bolt body 1. This step can increase the pressure between the bolt body 1 and the nut body 11 by the action of the spring pad 5, thereby reducing the loosening of the nut body 11 due to insufficient pressure. When the spring rod 21 contacts the part, the rubber pad 6 can be placed between the end of the spring rod 21 and the part. This step can increase the friction between the end of the spring rod 21 and the part by the action of the rubber pad 6.Further, the loosening of the nut body 11 caused by shaking can be reduced, and the friction strip 7 can increase the friction of the middle part of the nut body 11 when the nut body 11 needs to be tightened, so that the efficiency of tightening the nut body 11 can be improved, and the situation that the nut body 11 is difficult to rotate can be reduced.

[0031] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A fastening bolt designed to prevent loosening, comprising a bolt body (1); a nut body (11) is rotatably connected to the middle of the bolt body (1); characterized in that: The nut body (11) has a retaining groove (12) in the middle; multiple sets of elastic retaining plates (13) are fixed in the middle of the retaining groove (12).

2. The anti-loosening fastening bolt as described in claim 1, characterized in that: The nut body (11) has multiple sets of grooves (2) in the middle; a spring rod (21) is fixedly connected to the middle of the groove (2).

3. The anti-loosening fastening bolt as described in claim 1, characterized in that: The nut body (11) has a groove (3) in the middle; a slider (31) is slidably connected in the middle of the groove (3); and a support rod (32) is hinged in the middle of the slider (31).

4. The anti-loosening fastening bolt as described in claim 1, characterized in that: The bolt body (1) has multiple sets of grinding grooves (4) fixed in the middle.

5. The anti-loosening fastening bolt as described in claim 1, characterized in that: A spring washer (5) is slidably connected in the middle of the bolt body (1).

6. The anti-loosening fastening bolt as described in claim 2, characterized in that: A rubber pad (6) is fixed to the end of the spring rod (21).

7. The anti-loosening fastening bolt as described in claim 1, characterized in that: Multiple sets of friction strips (7) are fixedly connected to the middle of the nut body (11).

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