Anti-loosening and anti-dismounting bolt connecting structure

Abstract

The utility model provides an anti-loose and anti-tamper bolt connecting structure which comprises a bolt, one end of the bolt is fixedly connected with a hexagonal screw head, a hexagonal protective sleeve is arranged outside the hexagonal screw head, one side of the hexagonal protective sleeve is provided with a long groove, the inner wall of the long groove is fixedly connected with a miniature telescopic rod, and the miniature telescopic rod is fixedly connected with a nut. According to the anti-loosening and anti-disassembling bolt connecting structure, the first stud is rotated through a tool, the extending plate is in place, the L-shaped lock plate is inserted into the lock groove, the hexagonal protective sleeve wraps the hexagonal screw head, and the anti-loosening and anti-disassembling bolt connecting structure is high in anti-disassembling performance and suitable for high-safety scenes. And during dismounting, the first stud is rotated reversely, so that the first stud is separated from the extension plate, the micro telescopic rod and the spring release pressure, and the extension plate is pushed to separate the L-shaped lock plate from the lock groove. And disassembly prevention and maintenance convenience are considered, and the practicability and operability of bolt connection are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field especially relates to a prevent loosening and prevent dismantling bolt connection structure. BACKGROUND

[0002] Bolt is commonly used detachable connection fastener, plays a key role in mechanical manufacturing, building and other industrial fields, is simple in early stage, realizes standardization after industrial revolution, and material is mostly ordinary carbon steel. In the 20th century, the development of high-end manufacturing industry, the performance requirement of bolt is improved, and new materials and high-precision technology are born.

[0003] The current bolt does not have the design of effectively preventing non-professionals from disassembling, in the high safety requirement scene, anyone can easily remove the bolt, so that the equipment or structure faces the security risk, for example, the key part of some important facilities, confidential equipment may be damaged or leaked due to random disassembly.

[0004] Therefore, it is necessary to provide a prevent loosening and prevent dismantling bolt connection structure to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model provides a prevent loosening and prevent dismantling bolt connection structure, solve the problem that the current bolt is disassembled and makes non-professionals can be randomly disassembled.

[0006] In order to solve the above technical problems, the prevent loosening and prevent dismantling bolt connection structure bolt provided by the utility model, one end of the bolt is fixedly connected with a hexagonal head, the outside of the hexagonal head is provided with a hexagonal protective sleeve, a long slot is formed in the side of the hexagonal protective sleeve, a micro telescopic rod is fixedly connected to the inner wall of the long slot, a spring is arranged on the outside of the micro telescopic rod, a stretching plate is fixedly connected to the other end of the micro telescopic rod, a circular hole is formed in the top of the hexagonal protective sleeve, a first stud is screwedly connected in the circular hole, the outer surface of the first stud is screwedly connected with the inside of the stretching plate, the first stud penetrates through the stretching plate and extends to the outside of the stretching plate, an L-shaped lock plate is slidably connected to the other end of the inside of the stretching plate, the L-shaped lock plate penetrates through the stretching plate and extends to the outside of the stretching plate, a limiting block is fixedly connected to the top of the L-shaped lock plate, a lock slot is formed in the side of the hexagonal head, and the outside of the L-shaped lock plate is inserted into the inside of the lock slot.

[0007] Preferably, the outer surface of the bolt is screwedly connected with a connecting part, the outer surface of the bolt is screwedly connected with a nut, a deep hole is formed in the outside of the nut, a second stud is screwedly connected in the inside of the deep hole, a semicircular block is movably connected to the bottom of the second stud, a semicircular groove is arranged in the inside of the nut, the inside of the semicircular groove is slidably connected with the outside of the semicircular block, and a rubber pad is fixedly connected to the other side of the semicircular block.

[0008] Preferably, the bolt is externally provided with an oil injection groove.

[0009] Preferably, the other side of the hexagonal protective sleeve is provided with a luminous coating.

[0010] Preferably, the other side of the hexagonal protective sleeve is provided with a warning slogan.

[0011] Preferably, the outer surface of the bolt is provided with a common rubber pad.

[0012] Compared with the related art, the anti-loosening and anti-disassembly bolt connection structure has the following beneficial effects:

[0013] The utility model provides a kind of anti-loosening and anti-disassembly bolt connection structure, by tool rotation first stud, extension board is in place, L-shaped lock plate is inserted into lock groove, hexagonal protective sleeve is wrapped hexagonal head, and it is strong to prevent disassembly, it is applicable to high security scene.When disassembling, reverse rotation first stud, so that first stud is separated from extension board, miniature telescopic rod and spring release pressure, and push extension board to make L-shaped lock plate separate from lock groove.It is convenient to maintain while preventing disassembly, improve bolt connection practicality and operability. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure diagram of a preferred embodiment of the anti-loosening and anti-disassembly bolt connection structure provided by the utility model;

[0015] Figure 2 It is Figure 1 It is the top view structure schematic diagram shown in the figure;

[0016] Figure 3 It is Figure 1 It is the internal structure schematic diagram shown in the figure;

[0017] Figure 4 It is Figure 3 It is the A part enlarged schematic diagram shown in the figure;

[0018] Figure 5 It is Figure 3 It is the B part enlarged schematic diagram shown in the figure;

[0019] Figure 6 It is Figure 1 It is the front view cross section schematic diagram shown in the figure;

[0020] Figure 7 It is Figure 6 It is the C part enlarged schematic diagram shown in the figure;

[0021] Figure 8 It is Figure 6 It is the D part enlarged schematic diagram shown in the figure.

[0022] The figure mark: 1, bolt, 2, hexagonal head, 3, hexagonal protective sleeve, 4, long slot, 5, micro telescopic rod, 6, spring, 7, extension plate, 10, round hole, 11, first stud, 12, L-shaped lock plate, 13, limiting block, 14, lock groove, 15, connecting part, 16, nut, 17, deep hole, 18, second stud, 19, semicircular block, 20, semicircular groove, 21, rubber pad, 22, oil injection groove, 23, luminous coating, 24, warning slogan, 25, ordinary rubber pad. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings and embodiments.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 And Figure 8 Among them, Figure 1 It is the structure diagram of a preferred embodiment of the anti-loose and anti-disassembly bolt connecting structure provided by the utility model;

[0025] Figure 2 It is the top view structure diagram shown in Figure 1 ; Figure 3 It is the internal structure diagram shown in Figure 1 ; Figure 4 It is the A part enlarged diagram shown in Figure 3 ; Figure 5 It is the B part enlarged diagram shown in Figure 3 ; Figure 6 It is the front view section view diagram shown in Figure 1 ; Figure 7 It is the C part enlarged diagram shown in Figure 6 ; Figure 8 It is the D part enlarged diagram shown in Figure 6The D part enlarged view is shown. The anti-loosening and anti-disassembly bolt connection structure comprises a bolt 1, one end of the bolt 1 is fixedly connected with a hexagonal head 2, the outside of the hexagonal head 2 is provided with a hexagonal protective sleeve 3, one side of the hexagonal protective sleeve 3 is provided with a long slot 4, the inner wall of the long slot 4 is fixedly connected with a micro telescopic rod 5, the outside of the micro telescopic rod 5 is provided with a spring 6, the other end of the micro telescopic rod 5 is fixedly connected with an extension plate 7, the top of the hexagonal protective sleeve 3 is provided with a circular hole 10, the inside of the circular hole 10 is threadedly connected with a first stud 11, the outer surface of the first stud 11 is threadedly connected with the inside of the extension plate 7, the first stud 11 penetrates through the extension plate 7 and extends to the outside of the extension plate 7, the other end inside of the extension plate 7 is slidably connected with an L-shaped lock plate 12, the L-shaped lock plate 12 penetrates through the extension plate 7 and extends to the outside of the extension plate 7, the top of the L-shaped lock plate 12 is fixedly connected with a limiting block 13, one side of the hexagonal head 2 is provided with a lock slot 14, the outside of the L-shaped lock plate 12 is inserted into the inside of the lock slot 14.

[0026] The bolt 1 is used for connection, the hexagonal head 2 is convenient to operate, the hexagonal protective sleeve 3 with the circular outside and the hexagonal slot inside protects the hexagonal head 2 and provides a mounting position. The micro telescopic rod 5 and the spring 6 in the long slot 4 on one side of the hexagonal protective sleeve 3 prevent the bolt 1 from loosening, the first stud 11 is rotated to control the extension plate 7, the L-shaped lock plate 12 is inserted into the lock slot 14 to prevent disassembly, and the limiting block 13 ensures stability. When the hexagonal protective sleeve 3 outside the hexagonal head 2 is removed, the first stud 11 is reversely rotated, so that the first stud 11 is separated from the extension plate 7, the micro telescopic rod 5 and the spring 6 release the pressure, the extension plate 7 is pushed to make the L-shaped lock plate 12 separate from the lock slot 14.

[0027] The outer surface of the bolt 1 is threadedly connected with a connecting component 15, the outer surface of the bolt 1 is threadedly connected with a nut 16, the outside of the nut 16 is provided with a deep hole 17, the inside of the deep hole 17 is threadedly connected with a second stud 18, the bottom of the second stud 18 is movably connected with a semicircular block 19, the inside of the nut 16 is provided with a semicircular groove 20, the inside of the semicircular groove 20 is slidably connected with the outside of the semicircular block 19, the other side of the semicircular block 19 is fixedly connected with a rubber pad 21.

[0028] The connecting part 15 is connected to the bolt 1 and the nut 16 by screwing, and the connecting part 15 serves to connect other structures, and the nut 16 serves to fasten. The nut 16 is externally provided with a deep hole 17, and internally provided with a second stud 18 which is screwed. When the second stud 18 is rotated, the second stud 18 is raised or lowered in the deep hole 17. When the second stud 18 is lowered, a semicircular block 19 which is movably connected to the second stud 18 is separated from a semicircular groove 20, and at this time, a rubber pad 21 on the other side of the semicircular block 19 is in contact with the outer surface of the bolt 1. By using the friction and elasticity of the rubber pad, the nut 16 is effectively prevented from being separated from the bolt 1 due to vibration, thereby playing a loosening prevention role. When the nut 16 needs to be disassembled, the second stud 18 is rotated to be raised, the semicircular block 19 is returned to the inside of the semicircular groove 20, and the rubber pad 21 is not in contact with the bolt 1, thereby greatly reducing the resistance when the nut 16 is disassembled, and enabling the disassembly operation to be easily completed.

[0029] The bolt 1 is externally provided with an oil injection groove 22.

[0030] By externally providing the bolt 1 with the oil injection groove 22, lubricating oil can be injected, thereby reducing the friction between parts, reducing wear, prolonging the service life, and also playing a rust prevention role to a certain extent.

[0031] The other side of the hexagonal protective sleeve 3 is provided with a luminous coating 23.

[0032] The luminous coating 23 provided on the other side of the hexagonal protective sleeve 3 can emit light in a relatively dark environment, thereby facilitating quick positioning of the position of the bolt 1, and being especially suitable for night or low-light working scenes, thereby improving the convenience and work efficiency.

[0033] The other side of the hexagonal protective sleeve 3 is provided with a warning slogan 24.

[0034] The warning slogan 24 provided on the other side of the hexagonal protective sleeve 3 prevents non-professionals from disassembling.

[0035] The outer surface of the bolt 1 is provided with a common rubber pad 25.

[0036] The common rubber pad 25 on the outer surface of the bolt 1 can increase the friction when the nut 16 is tightened, thereby playing a preliminary loosening prevention role and preventing the nut 16 from loosening due to slight vibration.

[0037] The working principle of the anti-loosening and anti-disassembly bolt connecting structure is as follows: first, when it is necessary to enhance the anti-disassembly property of the bolt connection, an operator rotates the first stud 11 in the top hole 10 of the hexagonal protective sleeve 3 by using a professional tool. During the rotation, when the first stud 11 is accurately aligned with the threaded hole on the extension plate 7, the first stud 11 is continuously rotated. Since the first stud 11 is connected with the extension plate 7 through threads, the extension plate 7 is gradually stabilized in position under the action of thread transmission and overcomes the possible small resistance. At the same time, the micro telescopic rod 5 fixed at the other end of the extension plate 7 also moves synchronously, and in the moving process, the spring 6 outside the micro telescopic rod 5 is compressed, the elastic deformation is continuously increased, and then the elastic potential energy is continuously accumulated. Then, the movement of the extension plate 7 drives the synchronous movement of the L-shaped lock plate 12 connected with the extension plate 7 in sliding mode, so that the L-shaped lock plate 12 is accurately inserted into the lock groove 14 on one side of the hexagonal head 2. At this time, the hexagonal protective sleeve 3 tightly wraps the hexagonal head 2, forming a firm anti-disassembly structure to prevent non-professionals from arbitrarily disassembling. Finally, when the hexagonal protective sleeve 3 needs to be disassembled due to maintenance or other requirements, the operator reversely rotates the first stud 11 by using a tool, the first stud 11 is separated from the extension plate 7, the micro telescopic rod 5 and the spring 6 which are compressed before are released, the extension plate 7 is reversely moved, and then the L-shaped lock plate 12 is separated from the lock groove 14. Since the L-shaped lock plate 12 is slidable in the extension plate 7, the operator can easily push it upwards, so that the hexagonal protective sleeve 3 is successfully disassembled.

[0038] Compared with the related art, the anti-loosening and anti-disassembly bolt connecting structure has the following beneficial effects:

[0039] The anti-loosening and anti-disassembly bolt connecting structure is provided, the first stud 11 is rotated by using a tool, the extension plate 7 is positioned, the L-shaped lock plate 12 is inserted into the lock groove 14, the hexagonal protective sleeve 3 wraps the hexagonal head 2, the anti-disassembly property is strong, and the bolt connecting structure is suitable for high safety scenes. When disassembling, the first stud 11 is reversely rotated, the first stud 11 is separated from the extension plate 7, the micro telescopic rod 5 and the spring 6 are released, the extension plate 7 is pushed to make the L-shaped lock plate 12 separated from the lock groove 14. The anti-disassembly and maintenance convenience are considered, and the bolt connection practicability and operability are improved.

[0040] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion by using the utility model specification and drawing contents, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A bolt connection structure for preventing loosening and dismantling, characterized in that, Include: The bolt, one end of the bolt is fixedly connected with hexagonal head, the outside of the hexagonal head is provided with hexagonal protective sleeve, one side of the hexagonal protective sleeve is provided with long slot, the inner wall of the long slot is fixedly connected with micro telescopic rod, the outside of the micro telescopic rod is provided with spring, the other end of the micro telescopic rod is fixedly connected with extension plate, the top of the hexagonal protective sleeve is provided with circular hole, the inside of the circular hole is screw connected with first stud, the outer surface of the first stud is screw connected with the inside of extension plate, the first stud is through the extension plate and extends to the outside of the extension plate, the other end of the inside of the extension plate is slidably connected with L-shaped lock plate, the L-shaped lock plate is through the extension plate and extends to the outside of the extension plate, the top of the L-shaped lock plate is fixedly connected with limiting block, one side of the hexagonal head is provided with lock slot, the outside of the L-shaped lock plate is inserted with the inside of the lock slot.

2. The tamperproof and tamper-evident bolted joint structure according to claim 1, wherein The outer surface of the bolt is screw connected with connecting component, the outer surface of the bolt is screw connected with nut, the outside of the nut is provided with deep hole, the inside of the deep hole is screw connected with second stud, the bottom of the second stud is movably connected with semicircle block, the inside of the nut is provided with semicircle groove, the inside of the semicircle groove is slidably connected with the outside of the semicircle block, the other side of the semicircle block is fixedly connected with rubber pad.

3. The tamperproof and tamper-evident bolted joint structure according to claim 1, wherein The outside of the bolt is provided with oil injection groove.

4. The tamperproof and tamper-evident bolted joint structure according to claim 1, wherein The other side of the hexagonal protective sleeve is provided with night light coating.

5. The tamperproof and tamper-evident bolted joint structure according to claim 1, wherein The other side of the hexagonal protective sleeve is provided with warning slogan.

6. The tamperproof and tamper-evident bolted joint structure according to Claim 1, wherein The outer surface of the bolt is provided with ordinary rubber pad.

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