Self-locking nut anti-loosening device

Abstract

The utility model provides a self-locking type nut anti-loosening device which comprises an L-shaped plate, the inner surface of the L-shaped plate is movably connected with a lead screw, the surface of the lead screw is in threaded connection with a nut body, inserting holes are formed in the left side and the right side of the top of the lead screw, a limiting mechanism is arranged on the surface of the L-shaped plate, and the limiting mechanism comprises a shell. A sliding rod is fixedly installed in an inner cavity of the shell, a sliding block is slidably connected to the surface of the sliding rod, a hard spring is fixedly installed at the top of the sliding block, the other end of the hard spring is fixedly connected to the top of the inner cavity of the shell, and inserting rods are fixedly installed on the left side and the right side of the bottom of the sliding block correspondingly. Through the arrangement of the limiting mechanism, the situation that the nut body rotates due to the influence of vibration, and consequently the nut body loosens and displaces is effectively avoided, the stability of the nut body is guaranteed, and an operator can use the nut conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to a self -locking nut anti -loosening device belongs to anti -loosening device technical field. BACKGROUND

[0002] The self -locking nut is a kind of specially designed nut, its internal structure makes it have self -locking function, can be automatically locked and stable connection under vibration and load, this kind of nut is widely used in the occasion needing firm and reliable connection, especially those need to prevent loosening and falling off.

[0003] The traditional self -locking nut usually mainly relies on the deformation of gasket, to fill the gap between nut and bolt, to increase the self -locking performance of nut, and when nut and screw rod are installed on the surface of production and processing equipment, due to the operation of production and processing equipment, possibly lead to the vibration of nut, when nut is in vibration state for a long time, it can cause the loosening rotation of nut, affect the installation position of nut.

[0004] Therefore, a self -locking nut anti -loosening device is provided. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a self -locking nut anti -loosening device to solve or alleviate the technical problems in the prior art, at least provide a beneficial choice.

[0006] The technical scheme of the utility model is realized as follows: a self -locking nut anti -loosening device, including L-shaped plate, the inner surface of L-shaped plate is movably connected with screw rod, the surface of screw rod is threadedly connected with nut body, the left and right sides of the top of screw rod are all provided with insertion hole, the surface of L-shaped plate is provided with limiting mechanism, the limiting mechanism includes shell, the inner chamber of shell is fixedly installed with slide rod, the surface of slide rod is slidably connected with sliding block, the top of sliding block is fixedly installed with hard spring, the other end of hard spring is fixedly connected to the top of the inner chamber of shell, the left and right sides of the bottom of sliding block are all fixedly installed with insertion rod, the front side of sliding block is fixedly installed with pull plate.

[0007] Further preferably, the front side of the shell is provided with a moving groove, and the pull plate extends through the inner cavity of the moving groove and extends to the front side of the shell.

[0008] Further preferably, the left and right sides of the pull plate are both threadedly connected with a limiting bolt, and the rear sides of the two limiting bolts are both threadedly connected to the inner surface of the shell.

[0009] Further preferably, the left and right sides of the inner cavity of the shell are both provided with sliding grooves, and the outer sides of the sliding block are both slidably connected in the inner cavities of the two sliding grooves.

[0010] Further preferably, the shell bottom is provided with a slot on each of the left and right sides, and the two insertion rods extend through the inner cavities of the two slots and into the inner cavities of the two insertion holes.

[0011] Further preferably, the inner cavities of the two slots and the inner cavities of the two insertion holes are in the same vertical direction and are in communication with each other.

[0012] Further preferably, the rear side of the nut body is fixedly provided with a gasket made of rubber.

[0013] Further preferably, the left and right sides of the surface of the L-shaped plate are threadedly connected with mounting bolts, and the four mounting bolts are threadedly connected to the surface of an external production and processing device.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical scheme.

[0015] Firstly, the utility model discloses a limiting mechanism, and the tension of the hard spring makes the sliding block drive the insertion rod to move downwards, so that the insertion rod limits the nut body, and the limiting of the nut body can effectively prevent the nut body from rotating due to vibration, so that the loosening and displacement of the nut body are avoided, and the stability of the nut body is ensured, which facilitates the operation personnel to use.

[0016] Secondly, the utility model discloses a moving groove, which can offset when the pull plate moves, thereby affecting the limiting of the nut body, and the limiting bolt can limit the position of the pull plate, thereby improving the stability of the insertion rod inserted into the inner cavity of the insertion hole, the sliding groove can limit the movement of the sliding block, so that the direction of the sliding block is not changed when moving, thereby affecting the limiting effect of the nut body, the insertion groove can limit the moving direction of the insertion rod, so that the direction of the insertion rod is not offset when moving, thereby avoiding the situation that the nut body cannot be limited, the gasket can be deformed due to extrusion when the position of the nut body needs to be adjusted, thereby sealing the gap between the screw rod and the nut body, improving the friction between the nut body and the screw rod, reducing the loosening of the nut body, the mounting bolt can facilitate the installation of the device as a whole, so that the device as a whole can be installed on the surface of the processing device according to the use requirement.

[0017] The above summary is only for the purpose of the description and is not intended to limit in any way. In addition to the above-described illustrative aspects, embodiments, and features, further aspects, embodiments, and features of the utility model will be readily apparent from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 It is a schematic diagram of the three-dimensional front view structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the screw rod dismounting structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the limiting mechanism structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the shell internal structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the insertion slot structure of the utility model.

[0024] The figure mark: 1, L-shaped plate; 2, limiting mechanism; 201, shell; 202, sliding rod; 203, sliding block; 204, hard spring; 205, insertion rod; 206, pull plate; 207, moving slot; 208, sliding slot; 209, insertion slot; 210, limiting bolt; 3, screw rod; 4, nut body; 5, gasket; 6, mounting bolt; 7, insertion hole. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0026] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0027] Embodiment 1

[0028] As Figures 1-5As shown, the utility model embodiment provides a self locking nut anti loosening device, including L shaped board 1, the inner surface of L shaped board 1 is movably connected with screw rod 3, the surface of screw rod 3 is threadedly connected with nut body 4, and the left and right sides of the top of screw rod 3 are provided with insertion hole 7. The surface of L shaped board 1 is provided with limiting mechanism 2, limiting mechanism 2 includes shell 201, shell 201 is fixedly installed with slide rod 202 in the inner chamber, the surface of slide rod 202 is slidably connected with sliding block 203, the top of sliding block 203 is fixedly installed with hard spring 204, the other end of hard spring 204 is fixedly connected to the top of the inner chamber of shell 201, the left and right sides of the bottom of sliding block 203 are fixedly installed with insertion rod 205, the front side of sliding block 203 is fixedly installed with pull plate 206, and the front side of shell 201 is provided with moving groove 207. Pull plate 206 penetrates the inner chamber of moving groove 207 and extends to the front side of shell 201, and the left and right sides of pull plate 206 are threadedly connected with limiting bolt 210. The rear side of the two limiting bolts 210 is threadedly connected to the inner surface of shell 201, and the left and right sides of the inner chamber of shell 201 are provided with sliding groove 208. The outer side of sliding block 203 is slidably connected in the inner chamber of the two sliding grooves 208, and the left and right sides of the bottom of shell 201 are provided with insertion slot 209. The inner chamber of the two insertion rods 205 penetrates the inner chamber of the two insertion slots 209 and extends to the inner chamber of the two insertion holes 7, and the inner chamber of the two insertion slots 209 and the inner chamber of the two insertion holes 7 are in the same vertical direction and are in communication with each other.

[0029] By setting limiting mechanism 2, the tension of hard spring 204 makes sliding block 203 drive insertion rod 205 to move downward, so that insertion rod 205 limits nut body 4, and through the limiting of nut body 4, the rotation of nut body 4 due to vibration is avoided, so that the loosening displacement of nut body 4 is avoided, the stability of nut body 4 is ensured, and the operator is convenient to use.

[0030] Embodiment 2

[0031] As Figures 3-5 shown, in one embodiment, the rear side of nut body 4 is fixedly installed with gasket 5, the material of gasket 5 is rubber, the left and right sides of the surface of L shaped board 1 are threadedly connected with mounting bolt 6, and the four mounting bolts 6 are threadedly connected to the surface of external production and processing equipment.

[0032] By setting the moving groove 207, the offset generated when the pull plate 206 moves can be controlled, thereby affecting the limiting work on the nut body 4. By setting the limiting bolt 210, the position of the pull plate 206 can be limited, thereby improving the stability of the insertion rod 205 inserted into the inner cavity of the insertion hole 7. By setting the sliding groove 208, the movement of the sliding block 203 can be limited, thereby avoiding the change of the direction of the sliding block 203 when moving, thereby affecting the limiting effect on the nut body 4. By setting the insertion groove 209, the moving direction of the insertion rod 205 can be limited, thereby avoiding the change of the direction of the insertion rod 205 when moving, thereby avoiding the situation that the nut body 4 cannot be limited. By setting the gasket 5, the position of the nut body 4 can be easily changed when moving, thereby sealing the gap between the screw rod 3 and the nut body 4, improving the friction between the nut body 4 and the screw rod 3, and reducing the loosening of the nut body 4. By setting the mounting bolt 6, the whole device can be easily installed, thereby installing the whole device on the surface of the processing equipment according to the use requirement.

[0033] The utility model discloses a working time: first grip pull plate 206 and move upwards, sliding block 203 and insertion rod 205 synchronous move upwards at this moment, then when nut body 4 moves to the bottom of shell 201, hard spring 204 pushes sliding block 203 along the surface of slide rod 202 and moves downwards through its own tension, at this moment, insertion rod 205 synchronous with sliding block 203 and moves downwards and is inserted into the inner cavity of insertion hole 7, then twist limiting bolt 210, and the position of pull plate 206 is positioned, thereby completing the limiting work of nut body 4.

[0034] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various changes or replacements within the technical range disclosed by the utility model, and these should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be limited to the protection scope of the claims.

Claims

1. A self-locking nut anti-loosening device comprising an L-shaped plate (1), characterized in that, The inner surface of the L-shaped plate (1) is movably connected with a lead screw (3), the surface of the lead screw (3) is threadedly connected with a nut body (4), the left and right sides of the top of the lead screw (3) are provided with insertion holes (7), the surface of the L-shaped plate (1) is provided with a limiting mechanism (2), the limiting mechanism (2) comprises a shell (201), a sliding rod (202) is fixedly installed in the inner cavity of the shell (201), a sliding block (203) is slidably connected with the surface of the sliding rod (202), a hard spring (204) is fixedly installed at the top of the sliding block (203), the other end of the hard spring (204) is fixedly connected to the top of the inner cavity of the shell (201), plug rods (205) are fixedly installed on the left and right sides of the bottom of the sliding block (203), and a pull plate (206) is fixedly installed on the front side of the sliding block (203).

2. A self-locking nut anti-loosening device according to claim 1, characterized in that: The front side of the shell (201) is provided with a moving groove (207), and the pull plate (206) extends to the front side of the shell (201) through the inner cavity of the moving groove (207).

3. The self-locking nut anti-loosening device according to claim 1, characterized in that: The left and right sides of the pull plate (206) are threadedly connected with limiting bolts (210), and the rear sides of the two limiting bolts (210) are threadedly connected with the inner surface of the shell (201).

4. The self-locking nut anti-loosening device according to claim 1, characterized in that: The left and right sides of the inner cavity of the shell (201) are provided with sliding grooves (208), and the outer sides of the sliding block (203) are slidably connected in the inner cavities of the two sliding grooves (208).

5. The self-locking nut anti-loosening device according to claim 1, characterized in that: The left and right sides of the bottom of the shell (201) are provided with insertion grooves (209), and the two plug rods (205) extend into the inner cavities of the two insertion holes (7) through the inner cavities of the two insertion grooves (209).

6. A self-locking nut anti-loosening device according to claim 5, characterized in that: The inner cavities of the two insertion grooves (209) and the inner cavities of the two insertion holes (7) are in the same vertical direction and are in communication with each other.

7. The self-locking nut anti-loosening device according to claim 1, characterized in that: The rear side of the nut body (4) is fixedly installed with a gasket (5), and the material of the gasket (5) is rubber.

8. The self-locking nut anti-loosening device according to claim 1, characterized in that: The left and right sides of the surface of the L-shaped plate (1) are threadedly connected with mounting bolts (6), and the four mounting bolts (6) are threadedly connected with the surface of the external production and processing equipment.

Images