Nut locking structure

Abstract

The utility model discloses a nut anti-loosing structure, which relates to the field of nuts, and is characterized in that the nut anti-loosing structure comprises nut main bodies and a connecting piece, the nut main bodies are provided with through holes, two ends of the connecting piece are respectively used for penetrating through the through holes of the two nut main bodies, and the end part of the connecting piece is provided with a limiting structure used for limiting the end part of the connecting piece to be separated from the through holes. According to the utility model, the two nut main bodies are connected through the connecting piece, so that the nut main bodies cannot rotate due to the tightening of the connecting piece after being slightly loosened, and a good anti-loosening effect can be achieved, so that a better equipment safety effect can be achieved by utilizing the anti-loosening structure of the plurality of nuts in some high-frequency vibration or impact environments; the nut body is made of brass, has good corrosion resistance and can resist erosion of air, water and some weak acid, weak base and other media, due to the characteristic, the nut body can still keep the performance in the humid and highly corrosive environment, and the service life of the nut body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of nuts, and more specifically, to a nut anti-loosening structure. Background Technology

[0002] Nuts are fasteners that are screwed together with bolts or screws to provide a fastening effect. They are an essential component in all manufacturing machinery and are classified into several types based on their material, such as carbon steel, stainless steel, and non-ferrous metals (e.g., copper).

[0003] Chinese Patent Publication No. CN211901246U discloses an anti-loosening nut, including a nut body with an inner hole including a threaded hole and a washer mounting slot located at the upper axial end of the threaded hole. The inner diameter of the washer mounting slot is larger than the inner diameter of the threaded hole. The lower end of the washer mounting slot and the threaded hole form a lower axial limiting step surface. The upper end of the washer mounting slot has an upper axial limiting end face. A plastic ring is installed in the washer mounting slot. The plastic ring is restricted between the lower axial limiting step surface and the upper axial limiting end face. The outer diameter of the plastic ring is adapted to the outer diameter of the washer mounting slot. The inner circumferential surface of the plastic ring is flush with the minor diameter surface of the threaded hole.

[0004] As mentioned above, a common way to prevent nuts from loosening is to add washers. However, in some large equipment such as large motors, the nuts may loosen due to dynamic forces caused by the frequent vibrations of the equipment itself. Even with washers, this risk of loosening cannot be completely eliminated, especially in environments with high-frequency vibration or impact, where the risk of nuts loosening is even higher.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a nut anti-loosening structure.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a nut anti-loosening structure, including a nut body and a connector, wherein the nut body has a through hole, and the two ends of the connector are respectively used to pass through the through holes of the two nut bodies. The end of the connector is provided with a limiting structure for limiting the end of the connector from disengaging from the through hole. The connector connects the two nut bodies to limit the rotation angle of the two nut bodies.

[0008] The present invention is further configured such that the perforation is straight and runs horizontally through two adjacent sides of the nut body.

[0009] The present invention is further configured such that the number of holes on a nut body is greater than one.

[0010] The utility model further sets up: the connecting piece is the metal strip of plasticity deformation, the limit structure is the bending segment that forms through the end of metal strip bending.

[0011] The utility model further sets up: the connecting piece is the bar, the limit structure is the connecting cap, the connecting cap and the end of bar are detachable connection.

[0012] The utility model further sets up: the end of bar is equipped with the screw thread, the connecting cap and the end of bar screw connection.

[0013] Summarized above, the utility model has following beneficial effect: after tightening multiple nut main parts, two nut main parts are connected through connecting piece, when one nut main part loosens, because of the relation of connecting piece, it is impossible to rotate arbitrarily, and the nut main part will be tightened because of connecting piece after slight loosening, lead to unable to rotate, and the nut main part generally slight loosening will not have the influence, and the subsequent nut main part will not rotate again, can play good anti-loose effect, and the nut main part will not come off certainly, thereby in some high-frequency vibration or impact environment, can utilize this multiple nut anti-loose structure, reach better equipment safety effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is structural schematic diagram of example one;

[0015] Figure 2 It is structural schematic diagram of nut main part in example one Figure 1 ;

[0016] Figure 3 It is structural schematic diagram of nut main part in example one Figure 2 ;

[0017] Figure 4 It is connecting piece and limit structure schematic diagram in example two.

[0018] In the drawing: 1, nut main part;2, connecting piece;3, perforation;4, bending segment;5, connecting cap. DETAILED DESCRIPTION

[0019] The utility model is described in detail below in combination with the drawings and examples. Example one

[0020] Nut anti-loose structure, such as Figure 1 And Figure 2As shown, including nut body 1 and connecting piece 2, nut body 1 is provided with a through hole 3, the two ends of connecting piece 2 are used to pass through the through hole 3 of two nut bodies 1, the end of connecting piece 2 is provided with a limiting structure for limiting the end of connecting piece 2 from leaving the through hole 3, connecting piece 2 connects two nut bodies 1 for limiting the rotation angle of two nut bodies 1, after tightening a plurality of nut bodies 1, two nut bodies 1 are connected through connecting piece 2, so that one nut body 1 is loose, because of the relationship of connecting piece 2, it is impossible to rotate arbitrarily, nut body 1 will be tightened because of connecting piece 2 after slight loosening, resulting in unable to rotate, nut body 1 generally has no effect after slight loosening, and subsequent nut body 1 will not rotate again, which can achieve good anti-loosening effect, and nut body 1 will not come out, so that in some high frequency vibration or impact environment, the multiple nut anti-loosening structure can be used to achieve better equipment safety effect.

[0021] Specifically, as shown in Figure 1 and Figure 2 connecting piece 2 is a plastic deformation metal strip, the limiting structure is a bending section 4 formed by bending the end of the metal strip, the metal strip is bent to form the bending section 4 after passing through the through hole 3, the bending section 4 is the limiting structure, which can prevent the connecting piece 2 from leaving the through hole 3, this design makes the limiting structure more simple and reliable, when one nut body 1 is loose and rotates, the bending section 4 touches the nut body 1, so that the nut body 1 tightens the connecting piece 2, the other end of the connecting piece 2 is limited by the other bending section 4, so that the loosened nut body 1 can be pulled by the other nut body 1 to avoid further loosening, improving the reliability of the machine.

[0022] Among them, the nut body 1 is made of brass, the brass nut is relatively soft, easy to cut, polish and drill, etc. Processing technology, not only reduces the production cost, but also makes the brass nut can be customized according to the needs, meet the requirements of various shapes and specifications, it is convenient to punch to form the through hole 3, and it is convenient to make this special nut body 1, and the brass material has good corrosion resistance, can resist the corrosion of air, water and some weak acid, weak base and other media, this characteristic makes the nut body 1 can still maintain its performance in humid and corrosive environment, prolong the service life.

[0023] The connecting piece 2 is made of stainless steel, which also has good corrosion resistance and can adapt to more mechanical environments, so that the two nut bodies 1 will not rotate a large angle

[0024] Further, as shown in Figure 2 and Figure 3As shown, the through hole 3 is set in a straight line and runs through two adjacent sides of the nut body 1. The through hole 3 is set on two adjacent sides of the nut body 1. On the one hand, the length of the through hole 3 is small, which makes it easy for the connector 2 to pass through. On the other hand, this position is convenient for drilling and is far away from the thread position of the nut body 1, making it easier to process.

[0025] And such as Figure 2 and Figure 3 As shown, the number of through holes 3 on a nut body 1 is greater than one. In this embodiment, two through holes 3 are provided on a nut body 1, which means that a nut body 1 can connect two connectors 2, so that multiple nut bodies 1 can be connected to each other, achieving a better anti-loosening effect for multiple nuts. Example 2

[0026] Nut locking structure, such as Figure 4 As shown, unlike Embodiment 1, the connector 2 is a rod-shaped object, specifically a stainless steel metal rod. The limiting structure is a connecting cap 5. The connecting cap 5 and the end of the rod-shaped object are detachably connected. Compared with Embodiment 1, the rod-shaped object has higher hardness, which makes the nut body 1 hold the other nut body 1 better, thereby making the nut loosening structure achieve a better anti-loosening effect. The end of the rod-shaped object is threaded, and the connecting cap 5 and the end of the rod-shaped object are threadedly connected. After the two ends of the rod-shaped object pass through the holes 3 of the two nut bodies 1 respectively, the connecting cap 5 can be fixed at both ends of the rod-shaped object by rotating it, which can prevent the rod-shaped object from detaching from the holes 3. This method makes the installation of the connecting cap 5 more convenient.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A nut anti-loosening structure, characterized by: The nut body (1) is provided with a through hole (3), and the connecting piece (2) is used for penetrating the through holes (3) of the two nut bodies (1) respectively, and the end of the connecting piece (2) is provided with a limiting structure for limiting the end of the connecting piece (2) from separating from the through hole (3), and the connecting piece (2) connects the two nut bodies (1) for limiting the rotation angle of the two nut bodies (1).

2. The nut anti-loosening structure according to claim 1, characterized in that: The through hole (3) is arranged straightly and transversely through the adjacent two sides of the nut body (1).

3. The nut anti-loosening structure according to claim 1, characterized in that: The number of the through holes (3) of one nut body (1) is more than one.

4. The nut anti-loosening structure according to claim 1, characterized by: The connecting piece (2) is a plastic deformation metal strip, and the limiting structure is a bending section (4) formed by bending the end of the metal strip.

5. The nut anti-loosening structure according to claim 1, characterized by: The connecting piece (2) is a rod, and the limiting structure is a connecting cap (5), and the connecting cap (5) and the end of the rod are detachably connected.

6. The nut anti-loosening structure according to claim 5, characterized in that: The end of the rod is provided with a thread, and the connecting cap (5) and the end of the rod are threadedly connected.

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