Lock bolt structure assembly

Abstract

The utility model discloses a lock bolt structure assembly, and relates to the technical field of lock bolts, the lock bolt structure assembly comprises a screw rod, the upper side of the screw rod is movably sleeved with a gasket, the side face of the screw rod is rotatably provided with a screw sleeve, the top of the screw sleeve is fixedly provided with a clamping sleeve, and the bottom of the gasket is fixedly provided with a connecting piece. After the screw rod is inserted into an instrument to be fixed, the connecting ring is arranged on the side face of the screw rod in a sleeved mode, the connecting ring is located on the lower side of the instrument, the threaded sleeve is rotationally arranged on the upper side of the screw rod in a sleeved mode, the threaded sleeve is rotated upwards, and meanwhile the O-shaped ring and the second tooth block are driven to move upwards; the first tooth block and the inserting block are driven to rotate through the connecting ring, the inserting block is moved into the inserting groove, the thread sleeve is screwed on the screw rod, then the instrument is locked through the screw rod and the thread sleeve, and the possibility that the bolt is loosened after being used for a long time is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lock bolt technical field especially is related to a lock bolt structure assembly. BACKGROUND

[0002] The bolt is a kind of fastener consisting of head and screw rod, it needs to be used in cooperation with nut, when bolt is used in the parts such as vehicle wheel screw, it needs to prevent loosening due to vibration in driving process, to avoid security risks, which needs to use a lock bolt structure assembly.

[0003] The prior art (announcement number: CN209687899U) discloses a lock bolt structure, including bolt and nut, also is equipped with lower dish-shaped assembly;The nut end of lower dish-shaped assembly is equipped with lower dish-shaped washer, workpiece end is equipped with workpiece nesting pipe, the cooperation surface between lower dish-shaped washer and first workpiece, the cooperation surface between lower dish-shaped washer and upper dish-shaped washer, the cooperation surface between upper dish-shaped washer and nut are all formed balanced contact of surface and surface, form powerful static friction after fastening, not easy to loosen, to ensure long-term fastening.In the process of realizing the present scheme, it is found that the following problems exist in the prior art, which have not been well solved: the above-mentioned device increases the friction between the nut and the washer by the cooperation between the lower dish-shaped washer and the pipe structure, reduces the loosening, but when the bolt is used on the instruments and other objects with large vibration, the frequency of vibration is fast, which leads to the decrease of the friction between the washer and the nut structure after the bolt is used for a period of time, and the loosening of the bolt. UTILITY MODEL CONTENTS

[0004] In order to improve the above-mentioned problem that the friction between the nut and the washer is increased by the cooperation between the lower dish-shaped washer and the pipe structure, the loosening is reduced, but when the bolt is used on the instruments and other objects with large vibration, the frequency of vibration is fast, which leads to the decrease of the friction between the washer and the nut structure after the bolt is used for a period of time, and the loosening of the bolt, the utility model provides a lock bolt structure assembly.

[0005] The utility model provides a lock bolt structure assembly adopts the following technical scheme:

[0006] A lock bolt structure assembly, including screw rod, the upper side of screw rod is movably sleeved with gasket, the side of screw rod is rotatably provided with screw sleeve, the top of screw sleeve is fixedly provided with clamping sleeve, the bottom of gasket is fixedly provided with connecting piece.

[0007] Through the above technical scheme, the possibility of loosening of the bolt after a long period of use is reduced, and the screw rod can be kept in a pressure state, so that the relative rotation of the screw rod is reduced under the friction torque generated by the pressure.

[0008] Optionally, in the anti-loose bolt structure assembly, a groove is formed in the bottom of the screw rod, and the bottom of the screw rod is rounded, and the thread of the side of the screw rod is reverse thread.

[0009] Through the above technical scheme, the screw rod with the rounded bottom can effectively disperse stress, reduce stress concentration, and reduce wear between the screw rod and other parts, thereby prolonging the service life of the screw rod.

[0010] Optionally, in the anti-loose bolt structure assembly, the nut of the screw rod is hexagonal, and a hexagonal counterbore is formed in the top of the nut of the screw rod.

[0011] Through the above technical scheme, the hexagonal counterbore can be of standard size with the hexagonal nut of the screw rod, and an open wrench and an internal hexagonal wrench can be used to fix the screw rod.

[0012] Optionally, in the anti-loose bolt structure assembly, the gasket is a spring washer, the connecting piece includes a connecting ring, the top of the connecting ring is fixedly connected with the bottom of the gasket, the bottom of the connecting ring is fixedly provided with a first tooth block, and the side of the connecting ring is fixedly sleeved with a circular ring.

[0013] Through the above technical scheme, after the bolt is tightened, the gasket of the spring washer is extruded, so that the screw rod can be kept in a pressure state, and relative rotation of the screw rod can be prevented under the friction torque generated by the pressure.

[0014] Optionally, in the anti-loose bolt structure assembly, the sleeve includes an O-ring, the O-ring is fixedly arranged on the top of the sleeve, the top of the O-ring is fixedly provided with a second tooth block, and the second tooth block is connected with the first tooth block.

[0015] Through the above technical scheme, after the first tooth block and the second tooth block are engaged, the bolt can be effectively prevented from loosening.

[0016] Optionally, in the anti-loose bolt structure assembly, the number of the second tooth blocks and the first tooth blocks is several, the several second tooth blocks are fixedly arranged on the top of the O-ring in a ring shape at equal distances, and the several first tooth blocks are fixedly arranged on the bottom of the connecting ring in a ring shape at equal distances.

[0017] Through the above technical scheme, the engagement of the plurality of second tooth blocks and the plurality of first tooth blocks can increase the connection stability between the O-ring and the connecting ring.

[0018] Optionally, in the anti-loose bolt structure assembly, the bottom of the circular ring is fixedly provided with a plug, and the top of the O-ring is provided with a plug groove matched with the plug.

[0019] Through the technical scheme, the second tooth block can be engaged with the first tooth block after the insertion block is moved to the inside of the insertion slot.

[0020] In summary, the utility model has at least one of the following beneficial effects:

[0021] After the screw is inserted into the instrument to be fixed, the connecting ring is sleeved on the screw, the connecting ring is located at the lower side of the instrument, the screw sleeve is rotated and sleeved on the upper side of the screw, the screw sleeve is rotated upward through rotation, and the O-shaped ring and the second tooth block are driven to move upward, when the second tooth block is disengaged from the first tooth block, the first tooth block and the insertion block are rotated through the connecting ring, the insertion block is moved to the insertion slot, and the screw sleeve is tightened on the screw, so that the instrument is locked through the screw and the screw sleeve, and the possibility of loosening of the bolt after long-term use is reduced.

[0022] The screw is fixed on the instrument through the screw of the screw rod arranged counterclockwise, and the screw can be locked, and the spring washer is pressed through the screw nut of the screw rod and the instrument, so that the screw rod can be kept in a pressure state, and the relative rotation of the screw rod is reduced under the friction torque generated by the pressure. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a three-dimensional structure schematic view of the utility model;

[0024] Figure 2 is a three-dimensional structure schematic view of the screw rod of the utility model;

[0025] Figure 3 is a partial three-dimensional structure schematic view of the screw sleeve of the utility model;

[0026] Figure 4 is a partial three-dimensional structure schematic view of the connecting piece of the utility model.

[0027] In the figure: 1, screw rod; 101, hexagonal counterbore; 2, gasket; 3, screw sleeve; 4, sleeve; 401, O-shaped ring; 402, second tooth block; 403, insertion slot; 5, connecting piece; 501, connecting ring; 502, first tooth block; 503, circular ring; 504, insertion block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings of the specification Figures 1-4 The utility model will be further described in detail.

[0029] Please refer to the drawings of the specification Figure 1 、 Figure 2 、 Figure 3 and Figure 4The utility model provides an embodiment: a kind of anti-loose bolt structure assembly, including screw rod 1, the upper side of screw rod 1 is movably sleeved with gasket 2, the side of screw rod 1 is rotatably provided with screw bush 3, the top of screw bush 3 is fixedly provided with sleeve 4, the bottom of gasket 2 is fixedly provided with connecting piece 5.

[0030] Working principle: when using the anti-loose bolt structure assembly, after inserting screw rod 1 into the instrument to be fixed, connecting ring 501 is sleeved into the upper side of screw rod 1 and is at the lower side of the instrument, screw bush 3 is rotatably sleeved into the upper side of screw rod 1, then screw bush 3 is rotated, screw bush 3 is rotated upward by the spiral of screw rod 1, and O-ring 401 and second tooth block 402 are moved upward at the same time, when second tooth block 402 is removed from first tooth block 502, first tooth block 502 and plug-in block 504 are rotated by connecting ring 501, plug-in block 504 is moved to the inside of insertion slot 403, and then screw bush 3 is tightened on the upper side of screw rod 1, so that the instrument can be locked by screw rod 1 and screw bush 3, and the possibility of bolt loosening after long-term use is reduced.

[0031] By the spiral of screw rod 1 arranged counterclockwise, screw rod 1 can be locked after being fixed on the instrument, the gasket 2 of spring washer can be extruded by the extrusion between the screw cap of screw rod 1 and the instrument, the screw rod can be kept in a pressure state, and the relative rotation of the screw rod 1 is reduced under the friction torque generated by the pressure.

[0032] It should be noted that the bottom of screw rod 1 is provided with a groove, and the bottom of screw rod 1 is rounded, and the thread spiral on the side of screw rod 1 is reverse thread.

[0033] By adopting the above technical scheme, the screw rod 1 rounded can effectively disperse stress and reduce stress concentration, and can reduce the wear between the screw rod 1 and other parts, prolonging the service life of the screw rod 1.

[0034] It should be noted that the shape of the screw cap of screw rod 1 is hexagonal, and the top of the screw cap of screw rod 1 is provided with a hexagonal counterbore 101.

[0035] By adopting the above technical scheme, the hexagonal counterbore 101 can be used with the screw cap of the hexagonal screw rod 1 in a standard size, and it is convenient to use open wrench and internal hex wrench to fix the screw rod 1.

[0036] It should be noted that gasket 2 is spring washer, connecting piece 5 includes connecting ring 501, the top of connecting ring 501 is fixedly matched with the bottom of gasket 2, the bottom of connecting ring 501 is fixedly provided with first tooth block 502, and the side of connecting ring 501 is fixedly sleeved with circular ring 503.

[0037] By means of the above technical scheme, the gasket 2 of the spring washer is extruded after the bolt is tightened, so that the screw rod 1 can be kept in a pressure state, and relative rotation of the screw rod 1 is prevented under the friction torque generated by the pressure.

[0038] It should be noted that the sleeve 4 comprises an O-ring 401 fixedly arranged at the top of the screw sleeve 3, and the top of the O-ring 401 is fixedly provided with a second tooth block 402 which is clamped with the first tooth block 502.

[0039] By means of the above technical scheme, the first tooth block 502 is clamped with the second tooth block 402, so that loosening of the bolt can be effectively prevented.

[0040] It should be noted that the number of the second tooth block 402 and the first tooth block 502 is several, and the several second tooth blocks 402 are fixedly arranged at the top of the O-ring 401 in a ring shape at equal intervals, and the several first tooth blocks 502 are fixedly arranged at the bottom of the connecting ring 501 in a ring shape at equal intervals.

[0041] By means of the above technical scheme, clamping of the plurality of second tooth blocks 402 and the plurality of first tooth blocks 502 can increase the connection stability between the O-ring 401 and the connecting ring 501.

[0042] It should be noted that the bottom of the circular ring 503 is fixedly provided with an insertion block 504, and the top of the O-ring 401 is provided with an insertion slot 403 matched with the insertion block 504.

[0043] By means of the above technical scheme, the second tooth block 402 and the first tooth block 502 can be clamped after the insertion block 504 is moved to the inside of the insertion slot 403.

[0044] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A locking bolt construction assembly comprising a screw rod (1), characterized in that: The upper side of the screw rod (1) is sleeved with a gasket (2), the side of the screw rod (1) is rotatably provided with a screw sleeve (3), the top of the screw sleeve (3) is fixedly provided with a clamping sleeve (4), and the bottom of the gasket (2) is fixedly provided with a connecting piece (5).

2. A captive bolt assembly according to claim 1, wherein: The bottom of the screw rod (1) is provided with a groove, and the bottom of the screw rod (1) is rounded, and the thread of the side of the screw rod (1) is reverse thread.

3. A captive bolt assembly according to claim 1, wherein: The shape of the nut of the screw rod (1) is hexagonal, and the top of the nut of the screw rod (1) is provided with a hexagonal counterbore (101).

4. A captive bolt assembly according to claim 1, wherein: The gasket (2) is a spring washer, the connecting piece (5) comprises a connecting ring (501), the top of the connecting ring (501) is fixedly matched with the bottom of the gasket (2), the bottom of the connecting ring (501) is fixedly provided with a first tooth block (502), and the side of the connecting ring (501) is fixedly sleeved with a circular ring (503).

5. A captive bolt assembly according to claim 4, wherein: The clamping sleeve (4) comprises an O-shaped ring (401), the O-shaped ring (401) is fixedly arranged at the top of the screw sleeve (3), the top of the O-shaped ring (401) is fixedly provided with a second tooth block (402), and the second tooth block (402) is clamped with the first tooth block (502).

6. A captive bolt assembly according to claim 5, wherein: The number of the second tooth block (402) and the first tooth block (502) is several, and the several second tooth blocks (402) are fixedly arranged at the top of the O-shaped ring (401) in a ring shape at equal distances, and the several first tooth blocks (502) are fixedly arranged at the bottom of the connecting ring (501) in a ring shape at equal distances.

7. A lock bolt assembly according to claim 5 wherein: The bottom of the circular ring (503) is fixedly provided with an insertion block (504), and the top of the O-shaped ring (401) is provided with an insertion groove (403) matched with the insertion block (504).

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