A nut with good fastening effect

Abstract

The utility model relates to the technical field of fasteners, and discloses a nut with good fastening effect, including a bolt, a locking mechanism, and an anti-collision mechanism; the locking mechanism includes a first nut, a fixing ring, an auxiliary nut, a cover, a clamping ring, and a bayonet. The nut with good fastening effect is made by passing the bolt through the mounting hole on the machine to be fixed, then sleeve the auxiliary nut on the bolt, sleeve the first nut on the bolt, and tighten the first nut. After the first nut is tightened, the auxiliary nut fixed on the top of the first nut is reversely rotated to allow the fixing ring to be fastened to the bolt, thereby completing the fastening of the first nut. The bottom of the bolt passes through the through hole opened under the cover to clamp the cover under the first nut. Multiple bayonet pins fixed on the inner wall of the clamping ring inside the cover are inserted into multiple slots opened under the bolt to complete the plug-in cooperation with the slots opened by the bolt, so that the cover is limited and fastened to the bottom of the first nut, thereby achieving a good fastening effect and preventing the nut from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a nut with good fastening effect. Background Art

[0002] A nut is a nut that is screwed together with a bolt or a screw for fastening. It is a component that all manufacturing machinery must use. According to the different materials, it is divided into several types such as carbon steel, stainless steel, and non-ferrous metals (such as copper). Nuts are parts that tightly connect mechanical equipment. Through the inner thread, nuts and bolts of the same specifications can be connected together. The nut specification table is a specific and detailed unification of various nuts, and some specifications of nuts are subdivided in a table. There are many types of nuts, and there are nuts of different materials. Each type of nut has different specifications, and each screw also has its own mechanical properties and functions.

[0003] According to Chinese patent publication number CN 205278064 U, a nut is disclosed, wherein the nut body is composed of two sections, front and rear; wherein the outer diameter of the front section nut body is greater than the outer diameter of the rear section nut body; a No. 1 external thread is provided on the front section nut body, and a No. 2 external thread is provided on the rear section nut body, and the rotation direction of the No. 1 external thread is opposite to that of the No. 2 external thread; a limiting portion is provided at the front end of the front section nut body, and the diameter of the limiting portion is greater than the outer diameter of the front section nut body. The nut in the utility model can be used in conjunction with two nuts when connected with a bolt, wherein one nut is adapted to the front section nut body, and the other nut is adapted to the rear section nut body. The utility model utilizes two nuts to realize the tightening and disassembly operations between the nut body and the bolt, and when the nut body and the bolt are normally connected, since no nut is provided on the nut body, the erroneous disassembly operation can be effectively prevented.

[0004] However, the above device has the problem that the nut is simply fixed on the bolt, and the bolt and the nut are easily loosened over a long period of time, which greatly reduces the fixing effect of the bolt and the nut and affects the use. Utility Model Content

[0005] The purpose of the utility model is to provide a nut with good fastening effect to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a nut with good fastening effect, comprising a bolt, a locking mechanism is arranged below the bolt, and an anti-collision mechanism is arranged above the bolt;

[0007] The locking mechanism includes a first nut, a fixing ring is fixedly connected above the first nut, an auxiliary nut is threadedly connected to the surface of the fixing ring, a sleeve cover is snap-connected below the first nut, a retaining ring is fixedly connected inside the sleeve cover, and a bayonet is fixedly connected inside the retaining ring.

[0008] Furthermore, by passing the bolt through the mounting hole on the machine to be fixed, the gasket fits the upper surface of the mounting hole, and then the auxiliary nut is put on the bolt, and then the first nut is put on the bolt, and the first nut is tightened. After the first nut is tightened, the auxiliary nut on the outside of the fixing ring fixed above the first nut is rotated in the opposite direction to allow the fixing ring to be fastened to the bolt, thereby completing the fastening of the first nut. Then, the cover is passed from under the bolt, and the bottom of the bolt passes through the through hole opened under the cover to engage the cover under the first nut. A through hole that is compatible with the first nut is opened on the top of the cover. Then, a plurality of pins fixed on the inner wall of the retaining ring inside the cover are inserted into a plurality of slots opened under the bolt to complete the plug-in cooperation with the slots opened on the bolt, so that the cover is limited and fastened to the bottom of the first nut, thereby achieving a good fastening effect and preventing the nut from loosening.

[0009] Preferably, a mounting groove which is adapted to the first nut is provided on the upper part of the sleeve cover, and the first nut is snap-connected in the mounting groove provided on the upper part of the sleeve cover.

[0010] Furthermore, the mounting groove which is adapted to the first nut and is opened above the sleeve facilitates the first nut to be bolted to the bolt, so that the sleeve cover is engaged with the outer surface of the first nut and cooperates with the retaining ring fixed inside the sleeve cover to complete the fixation of the first nut.

[0011] Preferably, a plurality of slots are provided on the lower surface of the bolt, and a plurality of the bayonet pins are provided, and the plurality of slots are plug-fitted with the bayonet pins.

[0012] Furthermore, the multiple slots formed on the lower surface of the bolt can cooperate with the multiple bayonet pins fixed inside the clamping ring, and the multiple bayonet pins are simultaneously inserted into the multiple slots to limit the first nut.

[0013] Preferably, the first nut is threadedly connected to the surface of the bolt.

[0014] Furthermore, the first nut is threadedly connected to the surface of the bolt to facilitate fixing of the object or machine to be fixed.

[0015] Preferably, tightening openings are provided at the four corners of the fixing ring, and a through hole is provided below the cover.

[0016] Furthermore, the tightening openings at the four corners of the fixing ring facilitate reverse rotation of the auxiliary nuts outside the fixing ring when the first nut is bolted to the bolt, thereby fastening the fixing ring to the bolt and the first nut.

[0017] Preferably, the anti-collision mechanism comprises a gasket, and a spring is fixedly connected above the gasket.

[0018] Furthermore, when the top of the bolt is hit and vibrates, the spring buffers the vibration force and squeezes the spring upward through the gasket, achieving a good anti-vibration and anti-collision effect.

[0019] Preferably, the gasket is bolted to the upper surface of the bolt, and one end of the spring is fixedly connected to one side of the bolt.

[0020] Furthermore, the gasket is fixedly connected to the upper surface of the bolt to facilitate the use of the spring, and the first spring is respectively fixed above the gasket and on one side of the bolt to buffer the vibration force by squeezing the spring through the gasket when vibration occurs.

[0021] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0022] First, the utility model passes the bolt through the mounting hole on the machine to be fixed, the gasket fits the upper surface of the mounting hole, then the auxiliary nut is sleeved on the bolt, and then the first nut is sleeved on the bolt, and the first nut is tightened. After the first nut is tightened, the auxiliary nut on the outside of the fixing ring fixed above the first nut is rotated in the opposite direction to allow the fixing ring to be fastened to the bolt, thereby completing the fastening of the first nut. Then, the cover is passed from under the bolt, and the bottom of the bolt passes through the through hole opened under the cover to engage the cover under the first nut. A through hole that matches the first nut is opened on the top of the cover. Then, a plurality of bayonet pins fixed on the inner wall of the clamping ring inside the cover are inserted into a plurality of slots opened under the bolt to complete the plug-in cooperation with the slots opened on the bolt, so that the cover is limited and fastened to the bottom of the first nut, thereby achieving a good fastening effect and preventing the nut from loosening.

[0023] Secondly, when the upper part of the bolt is collided and vibrates, the spring buffers the vibration force and presses the spring upward through the gasket, thereby achieving a good anti-vibration and anti-collision effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the explosion structure of the overall structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the overall planing structure of the utility model;

[0027] Figure 4 It is a schematic diagram of the main structure of the utility model.

[0028] Among them: 1. bolt; 2. locking mechanism; 201. first nut; 202. fixing ring; 203. auxiliary nut; 204. cover; 205. snap ring; 206. bayonet pin; 3. anti-collision mechanism; 301. gasket; 302. spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0030] The utility model provides the following technical solutions:

[0031] Embodiment 1

[0032] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , a nut with good fastening effect, comprising a bolt 1, a locking mechanism 2 is arranged below the bolt 1, and an anti-collision mechanism 3 is arranged above the bolt 1;

[0033] The locking mechanism 2 includes a first nut 201, a fixing ring 202 is fixedly connected above the first nut 201, an auxiliary nut 203 is threadedly connected to the surface of the fixing ring 202, a cover 204 is snap-connected below the first nut 201, a retaining ring 205 is fixedly connected inside the cover 204, and a retaining pin 206 is fixedly connected inside the retaining ring 205.

[0034] Specifically, a mounting groove matched with the first nut 201 is provided on the upper side of the cover 204 , and the first nut 201 is snap-fitted and connected in the mounting groove provided on the upper side of the cover 204 .

[0035] Specifically, a plurality of slots are provided on the lower surface of the bolt 1 , and a plurality of bayonet pins 206 are provided, and the plurality of slots are plugged and matched with the bayonet pins 206 .

[0036] Specifically, the first nut 201 is threadedly connected to the surface of the bolt 1 .

[0037] Specifically, tightening openings are provided at the four corners of the fixing ring 202 , and a through hole is provided at the bottom of the cover 204 .

[0038] Through the above technical solution, the bolt 1 is passed through the mounting hole on the machine to be fixed, the gasket 301 is attached to the upper surface of the mounting hole, and then the auxiliary nut 203 is sleeved on the bolt 1, and then the first nut 201 is sleeved on the bolt 1, and the first nut 201 is tightened. After the first nut 201 is tightened, the auxiliary nut 203 outside the fixing ring 202 fixed above the first nut 201 is rotated in the opposite direction to fasten the fixing ring 202 to the bolt 1, and the first nut 201 is fastened. Then, the cover 204 is removed from the bolt 1. The bolt 1 is inserted from the bottom, and the bottom of the bolt 1 passes through the through hole opened at the bottom of the cover 204 to engage the cover 204 under the first nut 201. A through hole that matches the first nut 201 is opened on the top of the cover 204, and then a plurality of bayonet pins 206 fixed on the inner wall of the retaining ring 205 fixed inside the cover 204 are inserted into a plurality of slots opened under the bolt 1 to complete the plug-in cooperation with the slots opened by the bolt 1, so that the cover 204 is limited and fastened to the bottom of the first nut 201, achieving a good fastening effect and preventing the nut from loosening.

[0039] Embodiment 2

[0040] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , and on the basis of the first embodiment, it is further obtained that the anti-collision mechanism 3 includes a gasket 301 , and a spring 302 is fixedly connected above the gasket 301 .

[0041] Specifically, the washer 301 is bolted to the upper surface of the bolt 1 , and one end of the spring 302 is fixedly connected to one side of the bolt 1 .

[0042] Through the above technical solution, when the bolt 1 is hit and vibrates, the spring 302 buffers the vibration force and presses the spring 302 upward through the gasket 301, thereby achieving a good anti-vibration and anti-collision effect.

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A nut with good fastening effect, comprising a bolt (1), characterized in that: A locking mechanism (2) is provided below the bolt (1), and an anti-collision mechanism (3) is provided above the bolt (1); The locking mechanism (2) comprises a first nut (201), a fixing ring (202) is fixedly connected to the top of the first nut (201), an auxiliary nut (203) is threadedly connected to the surface of the fixing ring (202), a sleeve cover (204) is snap-fittedly connected to the bottom of the first nut (201), a retaining ring (205) is fixedly connected inside the sleeve cover (204), and a retaining pin (206) is fixedly connected inside the retaining ring (205).

2. A nut with good fastening effect according to claim 1, characterized in that: A mounting groove that is adapted to the first nut (201) is provided on the upper side of the sleeve cover (204), and the first nut (201) is snap-fitted into the mounting groove provided on the upper side of the sleeve cover (204).

3. A nut with good fastening effect according to claim 1, characterized in that: A plurality of slots are provided on the lower surface of the bolt (1), and a plurality of the bayonet pins (206) are provided, and the plurality of slots are plug-fitted with the bayonet pins (206).

4. A nut with good fastening effect according to claim 1, characterized in that: The first nut (201) is threadedly connected to the surface of the bolt (1).

5. A nut with good fastening effect according to claim 1, characterized in that: The fixing ring (202) has tightening openings at four corners, and the cover (204) has a through hole at the bottom.

6. A nut with good fastening effect according to claim 1, characterized in that: The anti-collision mechanism (3) comprises a gasket (301), and a spring (302) is fixedly connected above the gasket (301).

7. A nut with good fastening effect according to claim 6, characterized in that: The gasket (301) is bolted to the upper surface of the bolt (1), and one end of the spring (302) is fixedly connected to one side of the bolt (1).

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