CN217713302U

CN217713302U - One set of nut that prevents to become flexible

Info

Publication number: CN217713302U
Application number: CN202221644104.2U
Authority: CN
Inventors: 郑陆卡
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-01
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a one set prevents the not hard up fastener of nut. The wedge consists of an inner nut, an outer nut, a group of wedge blocks and a group of wedge rods. The inner nut is connected with a section of hollow screw, a plurality of wedge rods are arranged in the middle of the hollow screw, and a plurality of diamond corner positioning grooves of the wedge blocks are arranged at one end of the hollow screw and used for positioning diamond corners of the wedge blocks. One end of the outer nut is provided with a plurality of wedge block containing grooves for containing wedge blocks. The wedge rod is provided with teeth, under the action of the extrusion force of the outer nut, the teeth on the wedge rod are tangent to the threads on the bolt, and an embedded wedge is formed between the inner nut and the bolt. The wedge block at one end of the outer nut is forced to be embedded into the wedge block positioning groove under the action of elastic force of the elastic sheet, and an embedded wedge is formed between the outer nut and the inner nut. Thereby realize bolt and nut and combine as an organic whole, effectively prevent that nut on the bolt from appearing not hard up when high-frequency vibration, eliminate the potential safety hazard for the equipment of running.

Description

One set of nut that prevents to become flexible

Technical Field

The utility model relates to a fastener field is one set of nut that prevents not hard up.

Background

Nuts, fasteners found anywhere in this daily life, are varied. But it functions almost the same, that is, to fasten those objects that need to be fastened; these items to be fastened are stationary and also moving. Stationary objects are easy to fasten and moving objects are less easy to fasten. Such as: vehicles, bridges, machinery with vibrations, etc. These moving objects, which are located in different positions and environments, are subject to different vibration frequencies, which may loosen the nuts that are fastened, and eventually cause accidents or dangers. Therefore, the utility model designs a set of nut that prevents not hard up.

Disclosure of Invention

A set of anti-loosening nuts comprises an inner nut, an outer nut, a group of rhombic wedge blocks and a group of strip-shaped wedge rods. The inner nut is connected with a section of hollow screw, and the outer circle and the inner circle of the hollow screw are both provided with threads; the middle of the hollow screw is provided with a plurality of wedge rod placing grooves for placing wedge rods; one end of the screw is provided with a plurality of water caltrop positioning grooves of the wedge blocks, and the water caltrop positioning grooves are matched with water caltrops of the wedge blocks on the outer nut for use. One end of the outer nut is provided with a plurality of wedge block containing grooves for containing the wedge blocks. The section of the wedge rod is trapezoidal when viewed from top, and teeth on the wedge rod are arranged towards a screw rod of the bolt; the rhombus wedge block is provided with a water caltrop, a position spring piece and a rotating shaft required by rotation. The outer nut is rotatably sleeved on the hollow screw rod connected with the inner nut, when the outer nut rotates, the wedge rod on the hollow screw rod is forced to extrude towards the screw rod on the bolt, teeth on the wedge rod are tangent to threads on the screw rod, and an embedded wedge is formed between the hollow screw rod connected with the inner nut and the screw rod of the bolt. The wedge block at one end of the outer nut can force the water caltrops of the wedge block to be embedded into the wedge block water caltrop positioning grooves at one end of the hollow screw rod under the action of elastic force of the elastic sheet, and an embedded wedge is formed between the outer nut and the hollow screw rod. Thereby realize that bolt and nut combine as an organic whole, effectively prevent that nut on the bolt from appearing not hard up when the vibration, eliminate the potential safety hazard for the equipment of operation.

Drawings

FIG. 1 is a perspective view of a set of anti-loosening nuts, the outer nut and the inner nut being combined to fix an object to be clamped on a bolt. In the figure, 61 is a screw on a bolt, 42 is a diamond corner positioning groove of a wedge block, 10 is the wedge block, 13 is an elastic sheet on the wedge block, 20 is an outer nut, 40 is an inner nut, 50 is a clamped object, and 60 is the bolt.

Fig. 2 is a front view of a set of anti-loosening nuts, the outer nut and the inner nut being combined to fix the clamped object on the bolt. In the figure, 61 is a screw rod on a bolt, 42 is a wedge block rhombus positioning groove, 10 is a wedge block, 13 is an elastic sheet on the wedge block, 20 is an outer nut, 40 is an inner nut, 50 is a clamped object, and 60 is a bolt.

FIG. 3 is a top view of a set of anti-loosening nuts, the outer nut engaging the inner nut to secure the clamped object to the bolt. In the figure, 50 is a clamped object, 11 is a water chestnut on a wedge block, 10 is the wedge block, 42 is a water chestnut positioning groove of the wedge block, 40 is an internal nut, 61 is a screw rod on a bolt, and 43 is an external thread on a hollow screw rod of the internal nut connector.

Fig. 4 is an enlarged explanatory view of a circle of fig. 3. In the figure, 11 is a water chestnut on a wedge block, 10 is the wedge block, 42 is a water chestnut positioning groove of the wedge block, and 40 is an inner nut.

FIG. 5 is an exploded view of a set of nut for preventing loosening, wherein 10 is a diamond-shaped wedge block (note: wedge block for short), 12 is a rotating shaft required by rotation of the wedge block, 11 is a diamond corner on the wedge block, and 13 is a spring plate of the wedge block; 20 is an outer nut, 21 is a mounting groove of the wedge block on the outer nut, and 22 is a shaft seat of a rotating shaft of the wedge block in the mounting groove on the outer nut; 30 is a wedge rod, 31 is a tooth on the wedge rod; 40 is an internal nut, 41 is a wedge bar placing groove on the internal nut, 42 is a wedge block diamond corner positioning groove, and 43 is an external thread on a hollow screw rod connected with the internal nut; 50 is a clamped object; 60 is a bolt, 61 is a screw on the bolt.

Figure 6 is a front view of the wedge block spring springing open. In the figure, 11 is a water chestnut on a wedge block, 10 is the wedge block, 12 is a rotating shaft required by the rotation of the wedge block, and 13 is a spring sheet on the wedge block. ( Note: the wedge block may not be diamond-shaped, but the rotation track of the wedge block with the shaft as the center is always elliptical, because the wedge block is required by the function of a set of nut for preventing loosening. )

Figure 7 is a top view of the wedge block spring springing open. In the figure, 11 is a water caltrop on a wedge block, 10 is the wedge block, 12 is a rotating shaft required by the rotation of the wedge block, and 13 is a spring plate on the wedge block.

Fig. 8 is a perspective view of the wedge block spring being sprung open. In the figure, 11 is a water chestnut on a wedge block, 10 is the wedge block, 12 is a rotating shaft required by the rotation of the wedge block, and 13 is a spring sheet on the wedge block.

Fig. 9 is a front view of the cleat block spring lamination. In the figure, 11 is a water chestnut on a wedge block, 10 is the wedge block, 12 is a rotating shaft required by the rotation of the wedge block, and 13 is a spring sheet on the wedge block.

Fig. 10 is a top view of the outer nut. In the figure, 21 is a mounting groove of the wedge block on the external nut, 20 is the external nut, and 23 is a thread on the external nut.

Fig. 11 is a front view of the outer nut. In the figure, 22 is a shaft seat of a rotating shaft of the wedge block in a mounting groove on an outer nut, 21 is a mounting groove of the wedge block on the outer nut, and 20 is the outer nut.

Fig. 12 is a perspective view of the outer nut. In the figure, 22 is a shaft seat of a rotating shaft of the wedge block in a mounting groove on an outer nut, 21 is a mounting groove of the wedge block on the outer nut, and 23 is a thread on the outer nut. 20 is an external nut.

Fig. 13 is an enlarged explanatory view of the circle of fig. 12. In the figure, 22 is a shaft seat of a rotating shaft of a wedge block in a mounting groove on an outer nut; 21 is a groove for placing the wedge block on the outer nut.

Fig. 14 is a top view of the wedge rod, in which 30 is the wedge rod and 31 is the teeth on the wedge rod. ( Note: the shape of the wedge rod may be unlimited but the volume must be greater than the distance between the internal thread and the external thread on the hollow screw, since the wedge rod is required to act as a set of anti-loosening nuts. )

Fig. 15 is an enlarged explanatory view of fig. 14. In the figure 30 is the wedge rod and 31 is the tooth on the wedge rod.

Figure 16 is a front view of the wedge rod. In the figure, 30 is a wedge rod and 31 is a tooth on the wedge rod.

Figure 17 is a top view of the inner nut. In the figure, 43 is an external thread on a hollow screw rod of the inner nut connector, 44 is an internal thread on the hollow screw rod of the inner nut connector, 42 is a wedge diamond corner positioning groove, and 40 is an inner nut.

Figure 18 is a front view of the inner nut. In the figure, 42 is a wedge block water chestnut positioning groove, 43 is an external thread on a hollow screw rod of the inner nut connector, 41 is a wedge rod positioning groove on the inner nut, and 40 is the inner nut.

Fig. 19 is a perspective view of the inner nut. In the figure, 44 is an internal thread on a hollow screw rod of the inner nut connector, 42 is a wedge block diamond corner positioning groove, 41 is a wedge rod positioning groove on the inner nut, 43 is an external thread on the hollow screw rod of the inner nut connector, and 40 is the inner nut.

Fig. 20 is a schematic view of a socket wrench being fitted over an inner nut during assembly of a set of anti-loosening nuts. In the figure, 70 is a socket wrench, 40 is an inner nut, and 50 is a clamped object; and 60 is a bolt.

Fig. 21 is a schematic view of a socket wrench compressing an inner nut and a clamped object when a set of loosening prevention nuts are assembled. In the figure, 70 is a socket wrench, 40 is an inner nut, and 50 is a clamped object; and 60 is a bolt.

FIG. 22 is a schematic view of an external nut being placed into a socket wrench during assembly of a set of anti-loosening nuts. In the figure, 70 is a socket wrench, 20 is an external nut.

Fig. 23 is an enlarged explanatory view of the circle of fig. 22. In the figure, 11 is a water caltrop on a wedge block, and 42 is a water caltrop positioning groove of the wedge block.

FIG. 24 is a schematic view of a socket wrench being withdrawn after the socket wrench has tightened the inner nut against the object to be clamped during assembly of a set of anti-loosening nuts. In the figure, 70 is a socket wrench, 40 is an inner nut, and 50 is a clamped object; and 60 is a bolt.

Detailed Description

A set of nut preventing loosening is realized by the following steps: the used part is shown in fig. 5, and the clamped object 50 is placed on the screw rod 61 of the bolt. The clamped object 50 is clamped by rotating the inner nut 40 on the shank 61 of the bolt using a socket wrench 70, as shown in fig. 20 and 21. The wedge rod 30 is placed in the wedge rod placing groove 41 of the hollow screw rod of the inner nut conjoined; embedding the wedge blocks 10 into the wedge block accommodating grooves 21 of the outer nut; then, the outer nut 20 with the wedge blocks 10 is pressed into the socket wrench 70, as shown in fig. 22; at this time, as seen in FIG. 23, one of the diamonds 11 of the wedge 10 has been separated from the diamond positioning grooves 42 of the wedge. This is because when the outer nut 20 is pressed into the socket wrench 70, the wedge blocks 10 are constrained by the inner wall of the socket wrench 70, and the wedge blocks 10 rotate to force the diamonds 11 on the wedge blocks to separate from the diamond positioning grooves 42 of the wedge blocks. Figure 6 shows the spring open state before the spring sheet on the wedge block enters the socket wrench; changed to the press-fit state, fig. 9; referring to fig. 24, the outer nut 20 in the socket wrench 70 is rotatably sleeved on the hollow screw rod connected with the inner nut, and the inner nut 40 is pressed tightly. At the moment, the wedge rod 30 on the hollow screw is extruded by the outer nut 20, the teeth 31 on the wedge rod are engaged with the threads 61 on the bolt, and a wedge is formed between the screw of the bolt and the hollow screw connected with the inner nut. After the outer nut 20 compresses the inner nut 40, the socket wrench 70 withdraws the outer nut 20, at this time, the wedge block 10 on the outer nut loses the binding force, the spring plate 13 on the wedge block is changed from the pressed state figure 9 to the spring-open state figure 6, the elasticity of the spring plate forces the wedge block 10 to rotate by taking the rotating shaft as the center of a circle, so that a diamond 11 on the wedge block is embedded into the diamond positioning groove 42 of the wedge block, and a wedge is formed between the outer nut and the hollow screw rod connected with the inner nut. The formation of two wedges enables a set of loose nuts.

When the nut on the bolt needs to be removed, the socket wrench 70 is pressed into the outer nut 20, the inner wall of the socket wrench forces the wedge blocks 10 on the outer nut to rotate around the rotating shaft, the water caltrops 11 on the wedge blocks are separated from the water caltrop positioning grooves 42 as shown in fig. 23, so that the outer nut 20 can be easily removed, then the wedge bars 30 on the hollow screw rod are taken out, and the inner nut is removed again.

Claims

1. One set of nut that prevents to become flexible, including interior nut, outer nut, wedge piece, the wedge stick, its characterized in that: the hollow screw of the inner nut is provided with a wedge rod mounting groove and a wedge block rhombus positioning groove, one end of the outer nut is provided with a wedge block mounting groove, the wedge block is provided with a rotating shaft, a rhombus and a spring plate, and the wedge rod is provided with teeth.

2. The set of anti-loosening nuts as claimed in claim 1, wherein: the wedge rod arranged on the hollow screw is extruded towards the screw of the bolt by the rotation of the outer nut, and the teeth on the wedge rod are tangent with the thread of the screw on the bolt.

3. The set of anti-loosening nuts as claimed in claim 1, wherein: the water caltrops on the wedge blocks can be embedded into or leave the positioning grooves of the water caltrops of the wedge blocks by the rotation of the wedge blocks.

4. The set of anti-loosening nuts of claim 2, wherein: the volume of the wedge rod is larger than the distance between the internal thread and the external thread on the hollow screw.

5. The set of anti-loosening nuts of claim 3, wherein: the rotation track of the wedge block with the shaft as the center is always an ellipse.