Anti-falling bolt

Abstract

The utility model relates to an anti-drop bolt, which belongs to the technical field of bolts and comprises a nut, a stud and a nut, the stud is fixedly mounted at one end of the nut, the nut is in threaded connection with one end of the stud, a circular groove is formed in one end of the stud, an anti-drop component for fixing the nut is mounted in the circular groove, and mounting grooves are formed in two sides of one end of the nut. The nut and the stud are reinforced through the lifting rod, the nut and the stud are prevented from moving in the using process, the threaded rod can be manually rotated to drive the square block to move, the limiting blocks on the two sides are made to move to limit the nut, and the situation that in the using process, the nut and the stud are damaged is avoided. When a bolt is frequently vibrated or rubs with a part, a nut is easy to rotate and loosen, so that the bolt falls off, and certain potential safety hazards are generated.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to an anti-falling bolt. Background Art

[0002] A bolt is a cylindrical threaded mechanical part used for fastening that is matched with a nut. It is a type of fastener consisting of a head and a screw. It needs to be matched with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. Bolt connection is a detachable connection. By turning the nut to remove it from the screw, the two parts can be separated. Therefore, bolts are widely used in daily life and industrial production and manufacturing, such as in electronic products, mechanical products, digital products, power equipment, vehicles and water conservancy projects.

[0003] As shown in the announcement number: CN218780601U, a bolt comprises a bolt body, the top surface of the bolt body is provided with a blocking block; a disassembly component is arranged on the top surface of the bolt body and is used for disassembling the bolt body, the disassembly component comprises a connecting groove, the connecting groove is arranged on the top surface of the bolt body, the inner circular wall surface of the connecting groove is provided with a limiting groove, the inner bottom surface of the limiting groove is provided with an oil filling groove, the inner circular wall surface of the connecting groove is provided with two slide grooves, the limiting groove is connected with the slide groove, the inner circular wall surface of the oil filling groove is provided with a plurality of oil outlet holes, and the inner circular wall surface of the oil filling groove is provided with a plurality of auxiliary holes, through the provided bolt body, connecting groove, limiting groove, slide groove, oil filling groove, oil outlet hole, auxiliary hole, operating column and limiting plate are used in cooperation with each other, the surface of the bolt body and the installed threaded hole can be lubricated, thereby facilitating the auxiliary staff to disassemble the bolt body.

[0004] Common bolts can be used to fix parts and can also be easily disassembled when in use. However, when the bolts are subjected to frequent vibrations or mutual friction between the bolts and parts, the nut at one end of the bolt is prone to rotate and loosen, causing the bolt to fall off, creating certain safety hazards. Utility Model Content

[0005] In order to overcome the technical defects of the prior art, the utility model provides an anti-falling bolt, which can achieve the purpose of preventing the bolt from falling off during use.

[0006] The technical solution adopted by the utility model is: comprising a nut, a stud and a nut, the stud is fixedly mounted on one end of the nut, the nut is threadedly connected to one end of the stud, a circular groove is provided at one end of the stud, an anti-falling-off component for fixing the nut is installed inside the circular groove, mounting grooves are provided on both sides of one end of the nut, a reinforcement component for fixing the nut is installed in the mounting groove, when in use, the reinforcement component is used to prevent the nut and the stud from moving, the mounting groove is a circular structure, the anti-falling-off component is used to prevent the nut from separating from the stud, and a thread is provided on the outside of the stud.

[0007] Preferably, in order to make the moving rod move smoothly, the anti-falling assembly includes a moving rod, the moving rod is inserted into the circular groove, square holes are opened on both sides of the moving rod, sliding grooves are symmetrically opened on the inner wall of the circular groove, a circular limit plate is clamped in the sliding groove, the circular limit plate is fixedly connected to the moving rod, the size of the moving rod is consistent with the size of the circular groove, the moving rod can move in the circular groove, and the circular limit plate can move in the sliding groove.

[0008] Preferably, in order to limit and fix the nut, a limit block is symmetrically slidably installed in the square hole, one end of the limit block is a triangular structure, and movable grooves are opened in a linear array on both sides of one end of the stud, one end of the movable groove extends into the sliding groove, and the size of the movable groove is consistent with the size of the limit block, and the limit block can move in the movable groove.

[0009] Preferably, in order to enable the limiting block to move in the circular limiting plate, one end of the circular limiting plate is connected to the square hole.

[0010] Preferably, in order to enable the square block to move, a square groove is opened in the middle position of the inner wall of the square hole, a square block is clamped in the square groove, one end of the moving rod is threadedly connected to a threaded rod, one end of the threaded rod is rotatably connected to the square block through a plane bearing, the square block can move in the square groove, and the threaded rod is used to change the position of the square block.

[0011] Preferably, in order to facilitate the rotation of the threaded rod, a hand wheel is fixedly mounted on one end of the threaded rod, and the hand wheel is an existing structure.

[0012] Preferably, in order to fix the nut, the reinforcement assembly includes a lifting rod, a circular hole is opened at the bottom of the installation groove, one end of the lifting rod is inserted into the circular hole, a baffle is fixedly installed at one end of the lifting rod, and the lifting rod can move in the circular hole.

[0013] Preferably, in order to enable the lifting rod to move automatically, a spring is sleeved on the outside of the lifting rod, one end of the spring is fixedly installed in the installation groove, and the other end of the spring is fixedly connected to the baffle, and the deformation force generated by the spring is used to change the position of the lifting rod.

[0014] The beneficial effect of the utility model is that when the utility model is in use, the square block is driven to move by manually rotating the threaded rod, so that the limit blocks on both sides move to limit the nut, thereby preventing the nut from easily rotating and loosening when the bolt is subjected to frequent vibration or mutual friction with parts during use, thereby causing the bolt to fall off and causing certain safety hazards. In addition, the nut can be reinforced with a lifting rod to prevent it from moving during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the stud connection structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the connection structure of the anti-falling component of the utility model.

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the mobile rod of the utility model.

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the nut of the utility model.

[0020] Figure 6 This is a schematic diagram of the connection structure of the reinforcement component of the utility model.

[0021] Explanation of the accompanying drawings: In the figure: 1, nut; 2, stud; 3, nut; 4, round groove; 5, anti-falling assembly; 501, moving rod; 502, square hole; 503, sliding groove; 504, circular limit plate; 505, limit block; 506, moving groove; 507, square groove; 508, square block; 509, threaded rod; 510, handwheel; 6, mounting groove; 7, reinforcement assembly; 701, lifting rod; 702, round hole; 703, baffle; 704, spring. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 6As shown, the present embodiment provides an anti-falling bolt, including a nut 1, a stud 2 and a nut 3. The stud 2 is fixedly mounted on one end of the nut 1, and the nut 3 is threadedly connected to one end of the stud 2. A circular groove 4 is provided at one end of the stud 2, and an anti-falling component 5 for fixing the nut 3 is installed inside the circular groove 4. Installation grooves 6 are provided on both sides of one end of the nut 1, and a reinforcement component 7 for fixing the nut 1 is installed in the installation groove 6. When in use, when it is necessary to fix the parts, three positioning holes are pre-opened on the parts, the stud 2 is placed in the positioning holes, and the nut 3 is manually threadedly connected to one end of the stud 2, and then the anti-falling component 5 is placed in the circular groove 4. The nut 3 is limited by the anti-falling component 5 to prevent the nut 3 from easily rotating and loosening when the bolt is subjected to frequent vibration or mutual friction with the parts during use, thereby causing the bolt to fall off and causing certain safety hazards. At the same time, the nut 1 and the stud 2 are reinforced by the reinforcement component 7 to prevent them from moving during use.

[0024] like Figure 2 and Figure 3 As shown, the anti-falling component 5 includes a moving rod 501, which is inserted into the circular groove 4. Square holes 502 are opened on both sides of the moving rod 501. Sliding grooves 503 are symmetrically opened on the inner wall of the circular groove 4. A circular limiting plate 504 is clamped in the sliding groove 503. The circular limiting plate 504 is fixedly connected to the moving rod 501. A limiting block 505 is symmetrically slidably installed in the square hole 502. One end of the limiting block 505 is a triangular structure. Moving grooves 506 are opened in a linear array on both sides of one end of the stud 2. One end of the moving groove 506 extends into the sliding groove 503, and the size of the moving groove 506 matches the size of the limiting block 505. One end of the circular limiting plate 504 is connected to the square hole 502. A square groove 507 is opened in the middle of the inner wall of the square hole 502. A square block 508 is connected, and one end of the moving rod 501 is threadedly connected to a threaded rod 509, and one end of the threaded rod 509 is rotatably connected to the square block 508 through a plane bearing, and one end of the threaded rod 509 is fixedly installed with a hand wheel 510. When in use, the moving rod 501 is first manually placed in the circular groove 4, and then the moving rod 501 is moved inward to move it to a suitable position. At this time, the circular limit plate 504 moves in the sliding groove 503 to play a limiting guiding role, and then the threaded rod 509 is manually rotated by the hand wheel 510 to make the square block 508 in the square groove 507, so that the limit blocks 505 on both sides move in the square hole 502 and the circular limit plate 504, and then the stud 2 is moved out through the moving groove 506 to limit the nut 3 to prevent the nut 3 from being separated from the stud 2 during use.

[0025] like Figure 5 and Figure 6As shown, the reinforcement component 7 includes a lifting rod 701, a circular hole 702 is opened at the bottom of the installation groove 6, one end of the lifting rod 701 is inserted into the circular hole 702, a baffle 703 is fixedly installed at one end of the lifting rod 701, a spring 704 is sleeved on the outer side of the lifting rod 701, one end of the spring 704 is fixedly installed in the installation groove 6, and the other end of the spring 704 is fixedly connected to the baffle 703. When in use, the baffle 703 is manually moved first to make the lifting rod 701 move in the circular hole 702. At this time, the spring 704 is stretched, and then the baffle 703 is loosened. Under the action of the deformation force generated by the spring 704, the lifting rod 701 is moved to the preset positioning hole to reinforce the nut 1 and the stud 2 to prevent them from moving during use.

[0026] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. An anti-drop bolt, comprising a nut (1), a stud (2) and a nut (3), wherein the stud (2) is fixedly mounted on one end of the nut (1), and the nut (3) is threadedly connected to one end of the stud (2), characterized in that: A circular groove (4) is formed at one end of the stud (2), and an anti-dropping component (5) for fixing the nut (3) is installed inside the circular groove (4). Installation grooves (6) are formed on both sides of one end of the nut (1), and a reinforcement component (7) for fixing the nut (1) is installed inside the installation groove (6).

2. The anti-drop bolt according to claim 1, characterized in that: The anti-falling component (5) comprises a moving rod (501), the moving rod (501) is inserted into the circular groove (4), square holes (502) are provided on both sides of the moving rod (501), sliding grooves (503) are symmetrically provided on the inner wall of the circular groove (4), a circular limiting plate (504) is clamped in the sliding groove (503), and the circular limiting plate (504) is fixedly connected to the moving rod (501).

3. The anti-drop bolt according to claim 2, characterized in that: A limit block (505) is symmetrically slidably installed in the square hole (502), one end of the limit block (505) is a triangular structure, and moving grooves (506) are provided in a linear array on both sides of one end of the stud (2), one end of the moving groove (506) extends into the sliding groove (503), and the size of the moving groove (506) is consistent with the size of the limit block (505).

4. The anti-drop bolt according to claim 3, characterized in that: One end of the circular limiting plate (504) is connected to the square hole (502).

5. The anti-drop bolt according to claim 4, characterized in that: A square groove (507) is provided in the middle of the inner wall of the square hole (502), a square block (508) is clamped in the square groove (507), one end of the moving rod (501) is threadedly connected to a threaded rod (509), and one end of the threaded rod (509) is rotatably connected to the square block (508) via a plane bearing.

6. The anti-drop bolt according to claim 5, characterized in that: A hand wheel (510) is fixedly mounted on one end of the threaded rod (509).

7. The anti-drop bolt according to claim 1, characterized in that: The reinforcement component (7) comprises a lifting rod (701), a round hole (702) is provided at the bottom of the installation groove (6), one end of the lifting rod (701) is inserted into the round hole (702), and a baffle (703) is fixedly mounted on one end of the lifting rod (701).

8. The anti-drop bolt according to claim 7, characterized in that: A spring (704) is sleeved on the outside of the lifting rod (701), one end of the spring (704) is fixedly mounted in the mounting groove (6), and the other end of the spring (704) is fixedly connected to the baffle (703).

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