CN211288396U - Nut with anti-reversing mechanism on inner diameter - Google Patents

Abstract

The utility model discloses an internal diameter has nut that prevents mechanism that moves back, including nut body, outer ring body, internal thread, tight circle and the tight seat of clamp, one side of nut body is equipped with outer ring body, fixed connection between outer ring body and the nut body has seted up the internal thread on the inner wall of nut body. The utility model discloses the internal diameter has the nut that prevents the mechanism that moves back, install the nut body on the screw rod, make the ring body contact with the screw rod, the screw rod extrudees the ring body to built-in ring department, make the ring body press from both sides the screw rod through reaction force, the screw rod contacts with the chute of sliding seat one side, the screw rod slides to the direction of thread groove on the chute, the screw rod pushes down the sliding seat simultaneously, kick-back after the spring takes place to compress, make the sliding seat press from both sides tightly the screw rod, this mechanism can effectually carry out secondary locking with the nut on the screw rod, prevent that the nut from moving back to the opposite direction of locking, and strengthen the effect of locking.

Description

A nut with an inner diameter with an anti-backup mechanism

technical field

The utility model relates to the technical field of nuts, in particular to a nut with an inner diameter with an anti-backward mechanism.

Background technique

A nut is a nut, a part that is screwed together with a bolt or a screw for fastening. A component that must be used in all production and manufacturing machinery is divided into carbon steel, stainless steel, non-ferrous metals and other types according to different materials. During the use of the nut, it is found that the nut will loosen during the use process, which will cause the nut to reverse in the opposite direction of locking, resulting in the failure of the locking effect.

Utility model content

The purpose of the present utility model is to provide a nut with an anti-backward mechanism in the inner diameter, which can effectively lock the nut on the screw rod twice, prevent the nut from backwards in the opposite direction of locking, and strengthen the locking effect. The problems in the prior art can be solved.

In order to achieve the above purpose, the utility model provides the following technical solutions: a nut with an inner diameter with an anti-backward mechanism, comprising a nut body, an outer ring body, an inner thread, a tightening ring and a clamping seat, one side of the nut body is There is an outer ring body, the outer ring body and the nut body are fixedly connected, the inner wall of the nut body is provided with an inner thread, and the side of the inner thread away from the outer ring body is provided with a tightening ring, the The inner part of the outer ring body is provided with a clamping seat;

The fastening ring includes a ring body, a built-in ring, an arc-shaped groove, a limit pad and a limit groove, the outer side of the ring body is fixedly connected with a built-in ring, and the inner side of the ring body is provided with an arc-shaped groove , both sides of the built-in ring are fixedly connected with limit pads, and the limit pads are installed inside the limit groove.

Preferably, the clamping seat includes an outer frame, a movable seat, a threaded groove, an inclined groove, a connecting rod, a movable plate, a sleeve rod and a spring, and a movable seat is arranged inside the outer frame, and the top of the movable seat is provided with a movable seat. There is a threaded groove, and the side of the threaded groove close to the inner thread is provided with an inclined groove, the bottom end of the movable seat is fixedly connected with a connecting rod, and the bottom end of the connecting rod is fixedly connected to the movable plate, and the movable plate The movable plate is movably installed inside the sleeve rod, the bottom end of the movable plate is fixedly connected with a spring, and the bottom end of the spring is fixedly installed on the outer frame.

Preferably, the chute is polished.

Preferably, the ring body is made of rubber material.

Compared with the prior art, the beneficial effects of the present utility model are as follows:

The inner diameter of the nut of the utility model is provided with an anti-reverse mechanism. The inner thread and the outer thread on the screw are engaged with each other, and the nut body is installed on the screw, so that the ring body is in contact with the screw, and the screw is opposite to the ring body to the inner ring. Squeeze, so that the ring body clamps the screw rod by the reaction force to prevent the nut body from moving freely on the screw rod, continue to rotate the nut body, so that the screw rod is in contact with the inclined groove on the side of the movable seat, and the screw rod moves upward on the inclined groove. The direction of the thread groove slides, and the thread connection between the thread groove and the screw rod is completed through the mutual engagement of the thread groove and the external thread on the screw rod. The movable plate presses down the spring, and after the spring is compressed, it rebounds, so that the movable seat clamps the screw. This mechanism can effectively lock the nut on the screw twice, preventing the nut from being locked in the opposite direction. Reverse and strengthen the locking effect.

Description of drawings

Fig. 1 is the overall sectional view of the utility model;

Fig. 2 is the enlarged view of the place A in Fig. 1 of the utility model;

3 is a cross-sectional view of the clamping seat of the present invention.

In the figure: 1. Nut body; 2. Outer ring body; 3. Internal thread; 4. Fastening ring; 41, Ring body; 42, Built-in ring; 43, Arc groove; 44, Limit pad; 45, Limit slot; 5, clamping seat; 51, outer frame; 52, movable seat; 53, thread groove; 54, inclined groove; 55, connecting rod; 56, movable plate; 57, sleeve rod; 58, spring.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figure 1-2, a nut with an inner diameter with an anti-backward mechanism includes a nut body 1, an outer ring body 2, an inner thread 3, a tightening ring 4 and a clamping seat 5. One side of the nut body 1 is provided with The outer ring body 2, the outer ring body 2 and the nut body 1 are fixedly connected, the inner wall of the nut body 1 is provided with an inner thread 3, and the side of the inner thread 3 away from the outer ring body 2 is provided with a fastening ring 4, and the outer ring The inside of the body 2 is provided with a clamping seat 5. The fastening ring 4 includes a ring body 41, a built-in ring 42, an arc groove 43, a limit pad 44 and a limit groove 45. The ring body 41 is made of rubber material. The ring body 41 is clamped to the screw to prevent loosening. The outer side of the ring body 41 is fixedly connected with a built-in ring 42. The built-in ring 42 is made of rubber material, so that after the ring body 41 is squeezed, the built-in ring 42 can be It shrinks and deforms to help the ring body 41 to clamp the screw. The inner side of the ring body 41 is provided with an arc-shaped groove 43. Through the arc-shaped groove 43, the left and right shaking can be reduced when the ring body 41 is in contact with the screw. Both sides of the ring 42 are fixedly connected with limit pads 44 , the limit pads 44 are installed inside the limit slot 45 , and the limit pads 44 are all made of rubber material, so that the limit pads 44 can be inserted into the limit slot 45 , through the internal thread 3 and the external thread on the screw, the nut body 1 is installed on the screw, so that the ring body 41 is in contact with the screw, and the screw squeezes the ring body 41 to the built-in ring 42, so that the ring The ring body 41 clamps the screw rod by the reaction force, so as to prevent the nut body 1 from freely moving on the screw rod.

Please refer to FIG. 3 , the clamping seat 5 includes an outer frame 51 , a movable seat 52 , a threaded groove 53 , an inclined groove 54 , a connecting rod 55 , a movable plate 56 , a sleeve rod 57 and a spring 58 , and a movable seat is arranged inside the outer frame 51 52. The top of the movable seat 52 is provided with a threaded groove 53, and the side of the threaded groove 53 close to the internal thread 3 is provided with an inclined groove 54. The inclined groove 54 is polished so that the screw and the inclined groove 54 will not produce large The bottom end of the movable seat 52 is fixedly connected with a connecting rod 55, the bottom end of the connecting rod 55 is fixedly connected to the movable plate 56, the movable plate 56 is movably installed inside the sleeve rod 57, and the bottom end of the movable plate 56 is fixedly connected There is a spring 58, the bottom end of the spring 58 is fixedly installed on the outer frame 51, the screw rod is in contact with the inclined groove 54 on the side of the movable seat 52, the screw rod slides in the direction of the screw groove 53 on the inclined groove 54, and the screw rod passes through the screw groove 53. The mutual engagement of the upper and outer threads completes the threaded connection between the threaded groove 53 and the screw. At the same time, the screw presses down the movable seat 52. The movable seat 52 pushes down the movable plate 56 through the connecting rod 55, and the movable plate 56 pushes the spring 58 down. When pressing down, the spring 58 is compressed and then rebounds, so that the movable seat 52 clamps the screw rod, so as to prevent the nut body 1 from loosening on the screw rod and backward.

Working principle: The internal thread 3 and the external thread on the screw are engaged with each other, and the nut body 1 is installed on the screw, so that the ring body 41 is in contact with the screw, and the screw squeezes the ring body 41 to the built-in ring 42. Make the ring body 41 clamp the screw by the reaction force to prevent the nut body 1 from moving freely on the screw, and continue to rotate the nut body 1 so that the screw is in contact with the inclined groove 54 on the side of the movable seat 52, and the screw is in the inclined groove 54. Sliding upward in the direction of the thread groove 53, through the mutual engagement of the thread groove 53 and the external thread on the screw, the threaded connection between the thread groove 53 and the screw is completed, and the screw presses down the movable seat 52, and the movable seat 52 passes through the connecting rod. 55 pushes down the movable plate 56, the movable plate 56 pushes down the spring 58, and the spring 58 rebounds after being compressed, so that the movable seat 52 clamps the screw rod to prevent the nut body 1 from loosening and backward on the screw rod occur.

To sum up, the nut with the anti-backward mechanism in the inner diameter of the utility model is engaged with the outer thread on the screw rod through the internal thread 3, and the nut body 1 is installed on the screw rod, so that the ring body 41 is in contact with the screw rod, and the screw rod is in contact with each other. Squeeze the ring body 41 to the built-in ring 42, so that the ring body 41 clamps the screw rod by the reaction force, so as to prevent the nut body 1 from moving freely on the screw rod, and continue to rotate the nut body 1 to make the screw rod and the movable seat 52 The inclined groove 54 on one side is in contact, and the screw slides on the inclined groove 54 in the direction of the screw groove 53. Through the mutual engagement between the screw groove 53 and the external thread on the screw, the screw connection between the screw groove 53 and the screw is completed. The movable seat 52 is pressed down, the movable seat 52 is pressed down on the movable plate 56 by the connecting rod 55, the movable plate 56 is pressed down on the spring 58, and the spring 58 rebounds after being compressed, so that the movable seat 52 clamps the screw. The mechanism can effectively lock the nut on the screw rod twice, prevent the nut from going backwards in the opposite direction of locking, and strengthen the locking effect.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. A nut with an inner diameter with an anti-backward mechanism, comprising a nut body (1), an outer ring body (2), an inner thread (3), a tightening ring (4) and a clamping seat (5), characterized in that : An outer ring body (2) is provided on one side of the nut body (1), the outer ring body (2) and the nut body (1) are fixedly connected, and the inner wall of the nut body (1) is provided with an outer ring body (2). There is an inner thread (3), the inner thread (3) is provided with a tightening ring (4) on the side away from the outer ring body (2), and a clamping seat (5) is arranged inside the outer ring body (2). ); The fastening ring (4) includes a ring body (41), a built-in ring (42), an arc-shaped groove (43), a limit washer (44) and a limit groove (45), and the ring body (41) ) is fixedly connected with a built-in ring (42), the inner side of the ring body (41) is provided with an arc-shaped groove (43), and both sides of the built-in ring (42) are fixedly connected to the limiting pads (44) , the limiting pad (44) is installed inside the limiting groove (45). 2. A nut with an inner diameter anti-backward mechanism according to claim 1, wherein the clamping seat (5) comprises an outer frame (51), a movable seat (52), and a threaded groove (53) , chute (54), connecting rod (55), movable plate (56), sleeve rod (57) and spring (58), the inside of the outer frame (51) is provided with a movable seat (52), the movable The top end of the seat (52) is provided with a threaded groove (53), the side of the threaded groove (53) close to the inner thread (3) is provided with an inclined groove (54), and the bottom end of the movable seat (52) is fixedly connected There is a connecting rod (55), the bottom end of the connecting rod (55) is fixedly connected to the movable plate (56), the movable plate (56) is movably installed inside the sleeve rod (57), and the movable plate ( The bottom end of 56) is fixedly connected with a spring (58), and the bottom end of the spring (58) is fixedly mounted on the outer frame (51). 3. The nut with an inner diameter anti-backup mechanism according to claim 2, wherein the inclined groove (54) is polished. 4. The nut with an inner diameter anti-backup mechanism according to claim 1, wherein the ring body (41) is made of rubber material.

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