Multifunctional check bolt

Abstract

The utility model provides a multifunctional lock bolt, which relates to the technical field of bolts, and comprises a head body, the bottom end of the head body is fixedly connected with a screw rod, the outer surface of the screw rod is provided with a fastening structure, the fastening structure comprises an inserting rod, one side of the inserting rod is fixedly connected with an L-shaped block, and the L-shaped block is fixedly connected with the bottom end of the head body. An L-shaped block is fixedly connected to the top end of the head body, an elastic piece is fixedly connected to the top end of the L-shaped block, a circular groove is formed in the screw rod, two protruding rods are fixedly connected to one side of the elastic rod, and a clamping groove is formed in the top end of the head body. The two elastic rods in the circular grooves are extruded by the surfaces of the inserting rods, so that the convex rods on one sides of the elastic rods extrude the rubber strips, the rubber strips expand outwards to fill the joints of the outer surfaces of the screws and the parts or the nuts, and the screws and the parts or the nuts are fastened. And connection looseness caused by shaking after the screw is connected with a part or a nut is avoided as far as possible. And the stability when the bolt is used is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field especially relates to a multi -functional check bolt. BACKGROUND

[0002] Bolt is a common mechanical part, is used for connecting two or more parts, make it become a whole, bolt usually is composed of head and screw rod, often cooperates with nut when using, nut is sleeved on the outer surface of screw rod, and the position of nut is moved to fix the part.

[0003] When bolt is inserted into the part inside and is connected with the threaded hole in the part inside to fix the part or cooperates with nut to fix the part, if the part itself produces vibration or impact, the bolt is easy to rotate autonomously and loosen in the part, thereby leading to the problem of the decline of the fixing effect and stability of the bolt to the part. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problem that if the part itself produces vibration or impact, the bolt is easy to rotate autonomously and loosen in the part, thereby leading to the problem of the decline of the fixing effect and stability of the bolt to the part and proposes a multi -functional check bolt.

[0005] In order to realize the above -mentioned purpose, the utility model has adopted the following technical scheme: a multi -functional check bolt, including head, the bottom of head Fixedly connected with screw rod, the outer surface of screw rod is provided with the fastening structure for fastening the connection between screw rod and connecting piece.

[0006] The effect reached by the above -mentioned components is as follows: when using bolt, the screw rod is inserted in the threaded hole of the part, and the head is rotated to connect the parts through the screw rod, or the screw rod is inserted through the adaptive hole on the surface of the part, and the nut is sleeved on the outer surface of the screw rod to connect the parts.

[0007] Preferably, the fastening structure includes a plug rod, one side of the plug rod is fixedly connected with an L-shaped block, the top end of the L-shaped block is fixedly connected with an elastic sheet, a circular groove is formed in the inside of the screw rod, rubber strips and elastic rods are fixedly connected on the inner wall of the circular groove, two convex rods are fixedly connected on one side of the elastic rod, the convex rods are used to lift the rubber strips when the elastic rod deforms, an arc-shaped rod is fixedly connected on the side of the elastic rod away from the convex rods, a clamping groove is formed in the top end of the head, and an opening is arranged at one end of the clamping groove.

[0008] The effect achieved by the above component is that when the bolt is used, the bolt is inserted into the fitting hole of the part and connected with the part or nut, then the insertion rod is inserted into the circular groove from top to bottom at the top end of the head body, when the bottom end of the insertion rod approaches the bottom end of the circular groove, the L-shaped block on one side of the insertion rod is clamped into the opening of the clamping groove, then the insertion rod is rotated to make the L-shaped block enter the clamping groove and press the elastic sheet, so that the L-shaped block enters the innermost part of the clamping groove, the position of the L-shaped block in the clamping groove is limited by the top end of the elastic sheet abutting against the inner wall top end of the clamping groove, when the insertion rod continuously enters the circular groove, the outer surface of the insertion rod contacts the two arc-shaped rods on the two sides of the inner wall of the circular groove to push the elastic rod to expand outward, the rubber strip is pressed by the protruding rod on one side of the elastic rod to expand outward and fill in the connection between the outer surface of the screw rod and the part or nut, when the bolt is removed, the insertion rod is rotated to make the L-shaped block disengage from the clamping groove, then the insertion rod is pulled upward, due to the extrusion between the screw rod and the connecting piece and the deformation force of the elastic rod, the elastic rod will return to its original state after the insertion rod disengages from the circular groove, the rubber strip is retracted into the inner side of the circular groove, at this time, the head body can be normally rotated to control the rotation of the screw rod to remove the bolt.

[0009] Preferably, the top end of the elastic sheet is fixedly connected with a plurality of protrusions, and the protrusions are made of rubber.

[0010] The effect achieved by the above component is that the friction between the top end of the elastic sheet and the inner wall top end of the clamping groove is further increased by the protrusions made of rubber, so that the position of the L-shaped block in the clamping groove is more stable.

[0011] Preferably, one side of the elastic sheet is fixedly connected with an auxiliary sheet, and the outer edge of the auxiliary sheet is arc-shaped.

[0012] The effect achieved by the above component is that the arc-shaped auxiliary sheet makes it easier for the side of the elastic sheet provided with the auxiliary sheet to enter the clamping groove and not to be easily clamped in the opening of the clamping groove.

[0013] Preferably, the top end of the insertion rod is fixedly connected with an operation block, and the two sides of the operation block are provided with protrusions.

[0014] The effect achieved by the above component is that after the insertion rod is inserted into the circular groove, the operation block can be more conveniently rotated by pinching the two protrusions on the outer surface of the operation block to control the rotation of the insertion rod.

[0015] Preferably, the outer surface of the screw rod is provided with a positioning structure, the positioning structure comprises a positioning ring, the top end of the positioning ring is provided with two insertion grooves, the inner wall of the insertion groove is slidably provided with a circular rod, the bottom end of the circular rod is provided with a protrusion, and the outer surface of the head body is provided with two through grooves.

[0016] The achieved effects of the above components are that when the bolt is used, the bottom ends of the two round rods provided with protrusions are inserted into the two insertion slots at the top end of the positioning ring respectively, and then the positioning ring is sleeved on the outer surface of the screw rod from bottom to top, and the top end portions of the two round rods pass through the two through slots on the outer surface of the head body, the bottom end of the positioning ring is attached to the surface of the part when the bolt is installed, and the positioning ring and the round rod rotate with the head body when the screw rod is connected with the part by rotating the head body, and the two round rods slide on the inner wall of the head body, the angle between the bolt as a whole and the part can be limited by the positioning ring, and the angle of the bolt is avoided from being deviated as much as possible when the bolt is installed, and after the bolt connection is completed, the two round rods are pulled upward to take out the round rods, and the positioning ring is left between the head body and the part.

[0017] Preferably, the bottom end of the round rod is fixedly connected with a positioning block, and the inner wall of the insertion slot is provided with a positioning groove on both sides.

[0018] The achieved effects of the above components are that when the bolt is used, the bottom end of the two round rods provided with protrusions are inserted into the two insertion slots at the top end of the positioning ring respectively, and then the positioning ring is sleeved on the outer surface of the screw rod from bottom to top, and the top end portions of the two round rods pass through the two through slots on the outer surface of the head body, the bottom end of the positioning ring is attached to the surface of the part when the bolt is installed, and the positioning ring and the round rod rotate with the head body when the screw rod is connected with the part by rotating the head body, and the two round rods slide on the inner wall of the head body, the angle between the bolt as a whole and the part can be limited by the positioning ring, and the angle of the bolt is avoided from being deviated as much as possible when the bolt is installed, and after the bolt connection is completed, the two round rods are pulled upward to take out the round rods, and the positioning ring is left between the head body and the part.

[0019] Compared with the prior art, the utility model has the advantages and positive effects that:

[0020] In the utility model, after the parts are connected by the bolt, the two elastic rods in the round groove are extruded by the surface of the insertion rod, the convex rod on one side of the elastic rod is extruded by the rubber strip, the rubber strip is expanded outward and filled in the connection between the outer surface of the screw rod and the part or the nut, the connection between the screw rod and the part or the nut is fastened, and the connection between the screw rod and the part or the nut is avoided from shaking and causing loose connection as much as possible after being connected, and the stability during the use of the bolt is improved. ACCURACY OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0022] Figure 2 It is a partial cross section three-dimensional structure schematic view of the screw rod of the utility model;

[0023] Figure 3 It is a three-dimensional structure schematic view of the insertion rod of the utility model;

[0024] Figure 4 It is a three-dimensional structure schematic view of the positioning ring of the utility model;

[0025] Figure 5 It is a three-dimensional structure schematic view of the round rod of the utility model.

[0026] Legend: 1, head body; 2, fastening structure; 3, positioning structure; 4, screw rod; 21, round groove; 22, rubber strip; 23, elastic rod; 24, convex rod; 25, arc-shaped rod; 26, clamping groove; 27, insertion rod; 28, L-shaped block; 29, elastic sheet; 210, convex strip; 211, auxiliary sheet; 212, operation block; 31, positioning ring; 32, insertion groove; 33, round rod; 34, protrusion; 35, positioning block; 36, positioning groove; 37, through groove. DETAILED DESCRIPTION

[0027] In example 1, as shown in the figure, a multifunctional locking bolt includes a head body 1, a screw rod 4 fixedly connected to the bottom end of the head body 1, a fastening structure 2 provided on the outer surface of the screw rod 4 for fastening the connection between the screw rod 4 and a connecting piece, and a positioning structure 3 provided on the outer surface of the head body 1. Figures 1-2 When the bolt is used, the screw rod 4 is inserted into a threaded hole of a part, the head body 1 is rotated to connect the part through the screw rod 4, or the screw rod 4 is inserted through an adaptive hole on the surface of the part, and a nut is sleeved on the outer surface of the screw rod 4 to connect the part.

[0028] Referring to Figures 1-3As shown, in the embodiment: the fastening structure 2 comprises a plug rod 27, one side of the plug rod 27 is fixedly connected with an L-shaped block 28, the top end of the L-shaped block 28 is fixedly connected with an elastic sheet 29, the inside of the screw rod 4 is provided with a circular groove 21, the inner wall of the circular groove 21 is fixedly connected with a rubber strip 22 and an elastic rod 23 respectively, one side of the elastic rod 23 is fixedly connected with two protruding rods 24, the protruding rods 24 are used to lift the rubber strip 22 when the elastic rod 23 deforms, the side of the elastic rod 23 away from the protruding rods 24 is fixedly connected with an arc-shaped rod 25, the top end of the head body 1 is provided with a clamping groove 26, one end of the clamping groove 26 is provided with an opening, when the bolt is used, after the bolt is inserted into the adaptive hole of the part and connected with the part or nut, the plug rod 27 can be inserted into the inside of the circular groove 21 from top to bottom at the top end of the head body 1, when the bottom end of the plug rod 27 approaches the bottom end of the circular groove 21, the L-shaped block 28 at one side of the plug rod 27 is clamped into the opening of the clamping groove 26, then the plug rod 27 is rotated to make the L-shaped block 28 enter the clamping groove 26 and press the elastic sheet 29, so that the L-shaped block 28 enters the innermost part of the clamping groove 26, the position of the L-shaped block 28 in the clamping groove 26 is limited by the top end of the elastic sheet 29 abutting against the inner wall top end of the clamping groove 26, when the plug rod 27 continuously enters the inside of the circular groove 21, the outer surface of the plug rod 27 contacts the two arc-shaped rods 25 on the two sides of the inner wall of the circular groove 21, which pushes the elastic rod 23 to expand outward, the protruding rods 24 at one side of the elastic rod 23 press the rubber strip 22, so that the rubber strip 22 expands outward to fill in the connection between the outer surface of the screw rod 4 and the part or nut, when the bolt is removed, the plug rod 27 is rotated first to make the L-shaped block 28 disengage from the inside of the clamping groove 26 through the opening of the clamping groove 26, then the plug rod 27 is pulled upward, due to the extrusion between the screw rod 4 and the connecting piece and the deformation force of the elastic rod 23, after the plug rod 27 disengages from the inside of the circular groove 21, the elastic rod 23 will return to the original state, the rubber strip 22 is retracted into the inside of the circular groove 21, at this time, the head body 1 can be normally rotated to control the rotation of the screw rod 4 to remove the bolt, by arranging the fastening structure 2, after the bolt is used to connect the parts, the surface of the plug rod 27 extrudes the two elastic rods 23 in the inside of the circular groove 21, so that the protruding rods 24 at one side of the elastic rod 23 press the rubber strip 22, the rubber strip 22 expands outward to fill in the connection between the outer surface of the screw rod 4 and the part or nut, the connection between the screw rod 4 and the part or nut is fastened, and the connection loosening caused by the shaking of the screw rod 4 after being connected with the part or nut is avoided as much as possible. The stability when the bolt is used is improved.

[0029] Referring to Figures 2-3As shown, in the embodiment: the top end of the elastic sheet 29 is fixedly connected with a plurality of convex strips 210, the convex strips 210 are made of rubber material, by setting the convex strips 210 made of rubber material, the friction between the top end of the elastic sheet 29 and the top end of the inner wall of the clamping groove 26 can be further increased, so that the position of the L-shaped block 28 in the clamping groove 26 is more stable, and one side of the elastic sheet 29 is fixedly connected with an auxiliary sheet 211, the outer side edge of the auxiliary sheet 211 is arc-shaped, by setting the arc-shaped auxiliary sheet 211, the side of the elastic sheet 29 provided with the auxiliary sheet 211 is easier to enter the inside of the clamping groove 26, and is not easy to be clamped at the opening of the clamping groove 26.

[0030] Referring to Figures 2-3 As shown, in the embodiment: the top end of the elastic sheet 29 is fixedly connected with a plurality of convex strips 210, the convex strips 210 are made of rubber material, by setting the convex strips 210 made of rubber material, the friction between the top end of the elastic sheet 29 and the top end of the inner wall of the clamping groove 26 can be further increased, so that the position of the L-shaped block 28 in the clamping groove 26 is more stable, and one side of the elastic sheet 29 is fixedly connected with an auxiliary sheet 211, the outer side edge of the auxiliary sheet 211 is arc-shaped, by setting the arc-shaped auxiliary sheet 211, the side of the elastic sheet 29 provided with the auxiliary sheet 211 is easier to enter the inside of the clamping groove 26, and is not easy to be clamped at the opening of the clamping groove 26.

[0031] Referring to Figure 1 , Figure 4 and Figure 5 As shown, in the embodiment: the outer surface of the screw rod 4 is provided with a positioning structure 3, the positioning structure 3 comprises a positioning ring 31, two insertion grooves 32 are formed in the top end of the positioning ring 31, a circular rod 33 is slidably inserted into the inner wall of the insertion groove 32, a protrusion 34 is arranged at the bottom end of the circular rod 33, and two through grooves 37 are formed in the outer surface of the head body 1, when the bolt is used, the bottom end of the circular rod 33 provided with the protrusion 34 is inserted into the insertion groove 32 at the top end of the positioning ring 31, and then the positioning ring 31 is sleeved on the outer surface of the screw rod 4 from bottom to top, so that the top end of the circular rod 33 passes through the two through grooves 37 in the outer surface of the head body 1, when the bolt is installed, the bottom end of the positioning ring 31 is attached to the surface of the part, and when the screw rod 4 is connected with the part by rotating the head body 1, the positioning ring 31 and the circular rod 33 will rotate with the head body 1, and at the same time, the two circular rods 33 will slide on the inner wall of the head body 1, the positioning ring 31 can limit the angle between the bolt and the part, so as to avoid the angle of the bolt from being deviated as much as possible when the bolt is installed, and after the bolt connection is completed, the two circular rods 33 can be pulled upwards to take out the circular rod 33, so that the positioning ring 31 is left between the head body 1 and the part, the bottom end of the circular rod 33 is fixedly connected with a positioning block 35, and two positioning grooves 36 are formed in the inner wall of the insertion groove 32, when the bottom end of the circular rod 33 is inserted into the insertion groove 32, the two positioning blocks 35 are inserted into the two positioning grooves 36 in the inner wall of the insertion groove 32, so as to further fix the angle between the circular rod 33 and the positioning ring 31, and avoid the angle between the circular rod 33 and the positioning ring 31 from being deviated as much as possible.

[0032] Working principle: when using the bolt, first, the bottom end of the two round rods 33 provided with the protrusions 34 is inserted into the two insertion slots 32 at the top end of the positioning ring 31, and then the positioning ring 31 is sleeved on the outer surface of the screw rod 4 from bottom to top, so that the top end of the two round rods 33 passes through the two through slots 37 on the outer surface of the head body 1. When the bolt is installed, the bottom end of the positioning ring 31 is attached to the surface of the part, and when the screw rod 4 is connected with the part by rotating the head body 1, the positioning ring 31 and the round rod 33 will rotate with the head body 1, and at the same time, the two round rods 33 will slide on the inner wall of the head body 1. The angle between the bolt and the part can be limited by the positioning ring 31. After the bolt connection is completed, the two round rods 33 are pulled upwards to remove the round rods 33, so that the positioning ring 31 is left between the head body 1 below and the part. Then, the insertion rod 27 is inserted into the circular groove 21 from top to bottom at the top end of the head body 1, and when the bottom end of the insertion rod 27 approaches the bottom end of the circular groove 21, the L-shaped block 28 on one side of the insertion rod 27 is clamped into the opening of the clamping groove 26. Then, the insertion rod 27 is rotated to make the L-shaped block 28 enter the clamping groove 26 and press the elastic sheet 29, so that the L-shaped block 28 enters the innermost part of the clamping groove 26. The position of the L-shaped block 28 in the clamping groove 26 is limited by the top end of the elastic sheet 29 abutting against the inner wall of the clamping groove 26. When the insertion rod 27 continues to enter the circular groove 21, the outer surface of the insertion rod 27 contacts the two arc-shaped rods 25 on both sides of the inner wall of the circular groove 21, which pushes the elastic rod 23 to expand outward. The protruding rod 24 on one side of the elastic rod 23 presses the rubber strip 22, so that the rubber strip 22 expands outward and fills the connection between the outer surface of the screw rod 4 and the part or the nut, thereby tightening the connection between the screw rod 4 and the part or the nut. When the bolt is removed, the L-shaped block 28 is first rotated to disengage from the clamping groove 26, and then the insertion rod 27 is pulled upwards. Due to the extrusion between the screw rod 4 and the connecting part and the deformation force of the elastic rod 23, the elastic rod 23 will return to its original state after the insertion rod 27 is disengaged from the circular groove 21, and the rubber strip 22 is retracted into the inner side of the circular groove 21. At this time, the head body 1 can be normally rotated to control the rotation of the screw rod 4 to remove the bolt.

[0033] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and alteration of the above embodiments without departing from the technical content of the present application, according to the technical essence of the present application, still belong to the protection scope of the present application. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A multifunctional anti-loosening bolt, comprising a head body (1), characterized in that: The bottom end of the head body (1) is fixedly connected to a screw (4), and the outer surface of the screw (4) is provided with a fastening structure (2) for fastening the connection between the screw (4) and the connector.

2. The multifunctional anti-loosening bolt according to claim 1, characterized in that: The fastening structure (2) includes a plug rod (27), an L-shaped block (28) is fixedly connected to one side of the plug rod (27), an elastic sheet (29) is fixedly connected to the top of the L-shaped block (28), a circular groove (21) is provided inside the screw (4), a rubber strip (22) and an elastic rod (23) are fixedly connected to both sides of the inner wall of the circular groove (21), two protruding rods (24) are fixedly connected to one side of the elastic rod (23), the protruding rods (24) are used to lift the rubber strip (22) when the elastic rod (23) deforms, an arc-shaped rod (25) is fixedly connected to the side of the elastic rod (23) away from the protruding rods (24), and a slot (26) is provided at the top of the head body (1), with an opening at one end of the slot (26).

3. The multifunctional anti-loosening bolt according to claim 2, characterized in that: The top end of the elastic sheet (29) is fixedly connected with several protrusions (210), which are made of rubber.

4. A multifunctional anti-loosening bolt according to claim 3, characterized in that: An auxiliary piece (211) is fixedly connected to one side of the elastic piece (29), and the outer edge of the auxiliary piece (211) is arc-shaped.

5. A multifunctional anti-loosening bolt according to claim 4, characterized in that: An operating block (212) is fixedly connected to the top of the insertion rod (27), and protrusions are provided on both sides of the operating block (212).

6. A multifunctional anti-loosening bolt according to claim 5, characterized in that: The outer surface of the screw (4) is provided with a positioning structure (3), the positioning structure (3) includes a positioning ring (31), the top of the positioning ring (31) has two slots (32), the inner wall of the slots (32) is slidably inserted with a round rod (33), the bottom end of the round rod (33) is provided with a protrusion (34), and the outer surface of the head body (1) has two through slots (37).

7. A multifunctional anti-loosening bolt according to claim 6, characterized in that: The bottom end of the round rod (33) is fixedly connected to a positioning block (35), and positioning grooves (36) are provided on both sides of the inner wall of the slot (32).

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