Vertical anti-loosening nut and screw device

Abstract

The utility model relates to the technical field of nut and screw locking, and discloses a vertical anti-loosening nut and screw device which comprises a plurality of anti-loosening assemblies, the anti-loosening assemblies are arranged on the outer wall of a bolt in the radial direction and located between an upper nut and a lower nut, and the upper nut and the lower nut are each provided with a plurality of lock holes in the radial direction of the bolt. The anti-loosening assembly comprises a first spring and a fixing rod, the outer wall of the bolt is sleeved with the first spring, the first spring is located between the upper nut and the lower nut, and the fixing rod sequentially penetrates through the upper nut and the lower nut through the lock hole; the first spring is compressed between the upper nut and the lower nut, then the fixing rods are inserted into the corresponding lock holes of the upper nut and the lower nut, and therefore installation of the anti-loosening assembly is completed, operation is easy and fast, and the installation efficiency of workers can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nut and screw anti-loosening, in particular to a vertical anti-loosening nut and screw device. Background Art

[0002] Bolts and nuts are common fasteners. Their main function is to connect two or more parts together to form a solid whole. They are widely used in machinery, construction, automobiles, aerospace and other fields. In order to make the parts connected more tightly, two nuts with opposite thread directions are usually used to fix the parts. However, when the bolts and nuts are in a vibrating working environment, the two nuts may rotate at the same time, causing the nuts to loosen, resulting in the separation of the parts and affecting the normal operation of the workpiece.

[0003] The prior art (publication number: CN220415974U) discloses an anti-loosening bolt assembly, including a bolt and a nut, wherein the bolt includes a first screw and a second screw, the diameter of the first screw being larger than the diameter of the second screw, a fastening nut being threadedly connected on the first screw, a anti-loosening nut being threadedly connected on the second screw, an anti-loosening member connecting the fastening nut and the anti-loosening nut is provided between the fastening nut and the anti-loosening nut, the anti-loosening member being a locking screw, the anti-loosening nut being provided with a threaded hole, the fastening nut being provided with a positioning groove corresponding to the threaded hole, the locking screw being connected within the threaded hole and the positioning groove. The bolt is threadedly connected with a locking nut that is tightened in a forward direction and an anti-loosening nut that is tightened in a reverse direction, so that loosening of the locking nut will be hindered by the anti-loosening nut, thereby playing a role in preventing loosening.

[0004] The existing technology uses a locking screw to connect the fastening nut and the anti-loosening nut to prevent the fastening nut and the anti-loosening nut from rotating relative to each other. However, when installing the locking screw, the staff still needs to tighten the locking screw with a screwdriver, which increases the installation operation time of the staff and reduces work efficiency. For this reason, we propose a vertical anti-loosening nut screw device to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a vertical anti-loosening nut and screw device to solve the problems of long installation time and low working efficiency.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a vertical anti-loosening nut and screw device, characterized in that: the upper nut and the lower nut are both provided with a plurality of lock holes radially extending along the bolt, and an anti-loosening component is radially provided between the upper nut and the lower nut, and the anti-loosening component is used to prevent the upper nut and the lower nut from rotating relative to each other.

[0007] The beneficial effects of this solution are: by providing a lock hole, the installation of the anti-loosening component is facilitated, and under the action of the anti-loosening component, the upper nut and the lower nut are prevented from rotating relative to each other, thereby improving the stability between the nut and the screw.

[0008] Preferably, as an improvement, the anti-loosening assembly includes a first spring and several fixing rods, the first spring is sleeved on the outer wall of the bolt, and the first spring is located between the upper nut and the lower nut, and the several fixing rods pass through the upper nut and the lower nut in sequence through the corresponding lock holes.

[0009] The beneficial effect is: during installation, first connect the upper nut with the bolt, then sleeve the first spring on the outer wall of the bolt, and then connect the lower nut with the bolt, so that the first spring is compressed between the upper nut and the lower nut, and finally insert each fixing rod into the corresponding lock hole of the upper nut and the lower nut, thereby completing the installation of the anti-loosening component. The operation is simple and quick, which can greatly improve the installation efficiency of the staff.

[0010] After the installation is completed, since the unlocking directions of the upper nut and the lower nut are opposite, when the upper nut is rotated in the unlocking direction, the fixing rod will drive the lower nut to rotate in the tightening direction, thereby limiting the rotation of the upper nut. Similarly, when the lower nut is rotated in the unlocking direction, the upper nut will also limit the rotation of the lower nut. At the same time, the first spring is compressed between the upper nut and the lower nut. The compressed first spring exerts an elastic force on the upper nut and the lower nut, so that the upper nut and the lower nut form a circumferential pre-tightening force with the help of the first spring. When the upper nut wants to rotate, it will be prevented by the pre-tightening force.

[0011] Preferably, as an improvement, the fixing rod is configured to be L-shaped.

[0012] The beneficial effect is that bending the fixing rod can increase the stability of the fixing rod and the lock hole, so that the fixing rod is hung on the upper end of the upper nut.

[0013] Preferably, as an improvement, the ends of the upper nut and the lower nut close to each other are both provided with anti-slip serrations.

[0014] The beneficial effect is that by arranging anti-slip serrations on the upper nut and the lower nut, the friction between the nut and the workpiece surface is increased, and the nut is further prevented from rotating.

[0015] Preferably, as an improvement, the anti-loosening assembly includes an upper screw, a lower screw and two second springs, the ends of the upper screw and the lower screw close to each other can be threadedly connected, the upper nut and the lower nut are provided with a plurality of mounting grooves, and each mounting groove is distributed along the radial direction of the bolt, the upper screw and the lower screw are respectively arranged in the mounting grooves of the upper nut and the lower nut, the two second springs are respectively arranged in the mounting grooves of the upper nut and the lower nut, and are respectively sleeved on the outer walls of the upper screw and the lower screw.

[0016] The beneficial effect is: the upper nut and the lower nut are connected by docking the upper screw and the lower screw. When in use, it is only necessary to squeeze the upper screw and the lower screw in the direction of approaching each other and rotate them in opposite directions, so that the upper screw and the lower screw are docked. At this time, the second springs respectively located in the mounting grooves are in a compressed state, so that the upper screw and the lower screw are more tightly combined. At the same time, the elastic force of the compression of the second spring will react on the upper nut and the lower nut, thereby making the upper nut and the lower nut fit more closely to the surface of the workpiece, further preventing them from rotating.

[0017] Preferably, as an improvement, a turntable is provided on each end of the upper screw and the lower screw that are away from each other.

[0018] The beneficial effect is that the turntable can increase the contact area when the staff rotates the screw, which is beneficial for the staff to rotate the upper screw and the lower screw.

[0019] Preferably, as an improvement, the outer wall of the turntable is provided with anti-slip grooves.

[0020] The beneficial effect is that the anti-slip grooves are helpful for the staff to rotate the turntable.

[0021] Preferably, as an improvement, one end of the two turntables close to the upper nut and the lower nut are respectively provided with anti-slip serrations.

[0022] The beneficial effect is that the anti-slip serrations can increase the friction between the turntable and the nut, thereby reducing the rotation of the upper screw and the lower screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of the anti-loosening assembly of Example 1 of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the upper nut and the lower nut in Example 1 of the utility model;

[0025] Figure 3 This is a schematic structural diagram of an anti-loosening assembly according to Example 2 of the present utility model;

[0026] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the anti-loosening component of Example 2 of the utility model. DETAILED DESCRIPTION

[0027] The following is further described in detail through specific implementation methods:

[0028] The reference numerals in the drawings of the specification include: bolt 1, upper nut 2, lower nut 3, lock hole 4, first spring 5, fixing rod 6, mounting groove 7, upper screw rod 8, lower screw rod 9, second spring 10, and turntable 11.

[0029] Example 1

[0030] Example 1 is basically as shown in the attached Figure 1-2 As shown, Figure 1 A vertical anti-loosening nut and screw device shown includes an anti-loosening component, such as Figure 2 The upper nut 2 and the lower nut 3 shown are radially extended with 6 lock holes 4, and the anti-loosening component is radially arranged on the outer wall of the bolt 1 and located between the upper nut 2 and the lower nut 3. The anti-loosening component includes a first spring 5 and a fixing rod 6. Figure 1 The first spring 5 shown is sleeved on the outer wall of the bolt 1, and the first spring 5 is located between the upper nut 2 and the lower nut 3, and the six fixing rods 6 pass through the upper nut 2 and the lower nut 3 in sequence through the corresponding lock holes 4 respectively.

[0031] like Figure 1 As shown, the fixing rod 6 is configured to be L-shaped, and the upper nut 2 is hooked by the bend at the upper end of the fixing rod 6, thereby preventing the fixing rod 6 from falling off.

[0032] like Figure 2 As shown, the upper ends of the upper nut 2 and the lower nut 3 are provided with anti-slip serrations, which can increase the friction between the upper nut 2 and the lower nut 3 and the workpiece, thereby preventing the upper nut 2 and the lower nut 3 from rotating.

[0033] The specific implementation process is as follows:

[0034] During installation, first connect the upper nut 2 with the bolt 1, then put the first spring 5 on the outer wall of the bolt 1, and then connect the lower nut 3 with the bolt 1, so that the first spring 5 is compressed between the upper nut 2 and the lower nut 3, and finally insert each fixing rod 6 into the lock hole 4 corresponding to the upper nut 2 and the lower nut 3, thereby completing the installation of the anti-loosening component. The operation is simple and quick, which can greatly improve the installation efficiency of the staff.

[0035] After the installation is completed, since the unlocking directions of the upper nut 2 and the lower nut 3 are opposite, when the upper nut 2 rotates in the unlocking direction, the fixing rod 6 will drive the lower nut 3 to rotate in the tightening direction, thereby limiting the rotation of the upper nut 2. Similarly, when the lower nut 3 rotates in the unlocking direction, the upper nut 2 will also limit the rotation of the lower nut 3. At the same time, since the first spring 5 is compressed between the upper nut 2 and the lower nut 3, the compressed first spring 5 exerts an elastic force on the upper nut 2 and the lower nut 3, so that the upper nut 2 and the lower nut 3 form a circumferential pre-tightening force with the help of the first spring 5. When the upper nut 2 wants to rotate, it will be prevented by the pre-tightening force.

[0036] Example 2

[0037] The difference between Example 2 and Example 1 is that: it includes several anti-loosening components. In this embodiment, the anti-loosening components are arranged in two groups, such as Figure 3The anti-loosening components shown are radially symmetrically arranged on the outer wall of the bolt 1. Each set of anti-loosening components includes an upper screw 8, a lower screw 9 and two second springs 10. Figure 4 As shown, the lower end of the upper screw rod 8 and the upper end of the lower screw rod 9 can be threadedly connected, the upper nut 2 and the lower nut 3 are symmetrically provided with mounting grooves 7, and the symmetrically provided mounting grooves 7 are radially distributed along the bolt 1, and the mounting grooves 7 are cylindrical. The upper screw rod 8 and the lower screw rod 9 are respectively rotatably arranged in the mounting grooves 7 of the upper nut 2 and the lower nut 3. The outer walls of the upper screw rod 8 and the lower screw rod 9 are both provided with limit plates, and the limit plates are in contact with the inner walls of the mounting grooves 7. The two second springs 10 are respectively arranged in the mounting grooves 7 of the upper nut 2 and the lower nut 3, and are respectively sleeved on the outer walls of the upper screw rod 8 and the lower screw rod 9.

[0038] like Figure 4 The upper end of the upper screw rod 8 and the lower end of the lower screw rod 9 are fixedly mounted with a turntable 11, and the outer wall of each turntable 11 is provided with anti-slip grooves. The two turntables 11 are respectively provided with anti-slip serrations on one end close to the upper nut 2 and the lower nut 3.

[0039] The upper nut 2 and the lower nut 3 are connected by docking the upper screw rod 8 with the lower screw rod 9. When in use, it is only necessary to squeeze the upper screw rod 8 and the lower screw rod 9 in the direction of approaching each other and rotate them in opposite directions, so that the upper screw rod 8 and the lower screw rod 9 are docked. At this time, the second springs 10 respectively located in the mounting grooves 7 are in a compressed state, so that the upper screw rod 8 and the lower screw rod 9 are more tightly combined. At the same time, the elastic force of the compression of the second spring 10 will react on the upper nut 2 and the lower nut 3, thereby making the upper nut 2 and the lower nut 3 fit more closely to the surface of the workpiece, further preventing them from rotating.

[0040] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A vertical anti-loosening nut and screw device, characterized by: The upper nut and the lower nut are both provided with a plurality of lock holes radially extending from the bolt, and an anti-loosening component is radially provided between the upper nut and the lower nut to prevent the upper nut and the lower nut from rotating relative to each other.

2. A vertical anti-loosening nut and screw device according to claim 1, characterized in that: The anti-loosening component includes a first spring and several fixing rods. The first spring is sleeved on the outer wall of the bolt and located between the upper nut and the lower nut. The several fixing rods pass through the upper nut and the lower nut in sequence through the corresponding lock holes.

3. A vertical anti-loosening nut and screw device according to claim 2, characterized in that: The fixing rod is set in L shape.

4. A vertical anti-loosening nut and screw device according to claim 1, characterized in that: The ends of the upper nut and the lower nut close to each other are both provided with anti-slip serrations.

5. The vertical anti-loosening nut and screw device according to claim 1, characterized in that: The anti-loosening assembly includes an upper screw, a lower screw and two second springs. The ends of the upper screw and the lower screw close to each other can be threadedly connected. The upper nut and the lower nut are both provided with a number of mounting grooves, and each mounting groove is distributed radially along the bolt. The upper screw and the lower screw are respectively arranged in the mounting grooves of the upper nut and the lower nut. The two second springs are respectively arranged in the mounting grooves of the upper nut and the lower nut, and are respectively sleeved on the outer walls of the upper screw and the lower screw.

6. A vertical anti-loosening nut and screw device according to claim 5, characterized in that: The ends of the upper screw rod and the lower screw rod which are away from each other are both provided with a rotating disk.

7. A vertical anti-loosening nut and screw device according to claim 6, characterized in that: The outer wall of the turntable is provided with anti-slip grooves.

8. A vertical anti-loosening nut and screw device according to claim 7, characterized in that: One end of the two turntables close to the upper nut and the lower nut is provided with anti-slip serrations.

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