Anti-locking easy-to-disassemble high-strength nut

Abstract

The utility model relates to the field of nuts, in particular to an anti-locking easy-to-disassemble high-strength nut which comprises a nut body, oil injection cavities are formed in the two sides in the nut body, an internal thread part is arranged in the middle in the nut body, and a plurality of conveying cavities are formed in the nut body and located between the oil injection cavities and the internal thread part at equal intervals. A conveying flow channel is formed in one side of the oil injection cavity in the nut body; according to the utility model, through the oil injection hole, the oil injection runner group, the oil injection cavity and the conveying cavity, a user can conveniently inject lubricating oil at different heights in the nut body, the nut body rotates after being injected with a certain amount of lubricating oil, and the lubricating oil gradually fills the internal thread part of the whole nut body in the rotating process; and therefore, it can be guaranteed that the nut can be smoothly screwed out of the bolt, the situation that the nut is difficult to disassemble due to rust jamming is avoided, and a certain anti-jamming function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to an anti-sticking and easily detachable high-strength nut. Background Art

[0002] A nut, that is, a screw cap, is a part that is screwed together with a bolt or a screw rod to play a fastening role, and is widely used in fields such as chemical equipment, pressure vessels, offshore engineering, pipe flanges, mechanical equipment, and rail transit. After the nut and the bolt are screwed and fixed, after a long time of oxidation and corrosion, the screw holes inside the nut are severely rusted. Especially when it is necessary to repair the components fixed by the nut and the bolt, if the connection between the bolt and the nut is rusted, it is difficult to turn. Forcible disassembly is likely to cause damage. If the nut is forcibly turned, the thread is likely to be stuck or the bolt is likely to break. In the case of rusted threads, people usually inject lubricating oil into the connection between the bolt and the nut to lubricate the connection between the two. However, since the gap between the bolt and the nut is small when they are threadedly connected, the lubricating oil added from the outside is difficult to enter the inner side of the connection between the bolt and the nut. Therefore, the lubricating oil is difficult to achieve the due lubricating effect. Content of the Utility Model

[0003] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose an anti-sticking and easily detachable high-strength nut.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An anti-sticking and easily detachable high-strength nut, including a nut body. Oil injection cavities are opened on both sides inside the nut body. An internal thread portion is arranged in the middle of the nut body. And a plurality of conveying cavities are equidistantly opened between the oil injection cavities and the internal thread portion inside the nut body. A conveying channel is opened on one side of the nut body inside the oil injection cavity.

[0006] Oil injection holes are staggeredly opened on both sides of the nut body. And an oil injection channel group is opened between the conveying channel and the oil injection holes inside the nut body. Sealing blocks are screwed on both sides of the nut body at the positions of the oil injection holes.

[0007] In addition, preferably, limiting retaining frames are fixedly installed on both sides of the nut body outside the sealing blocks, and the length of the limiting retaining frames is greater than the length of the sealing blocks.

[0008] In addition, preferably, a sealing plug is adaptively clamped on one side of the limiting retaining frame, and a clamping groove is opened in the sealing plug at the position of the sealing block.

[0009] In addition, preferably, the sealing block includes a fixing portion. A limiting portion is installed on one side of the fixing portion. A handle portion is installed on one side of the limiting portion. And a first external thread portion is arranged outside the fixing portion.

[0010] In addition, a preferred structure is that a first internal thread portion is adaptively provided at the first external thread portion of the sealing block within the nut body, and the first internal thread portion is threadedly connected to the first external thread portion.

[0011] In addition, a preferred structure is that the oil injection flow channel group includes a delivery flow channel which is opened within the nut body and is located on one side of the oil injection cavity, and a transition flow channel is opened within the nut body between the delivery cavity and the oil injection hole.

[0012] The beneficial effects of the present utility model are as follows:

[0013] In the present utility model, through the oil injection hole, the oil injection flow channel group, the oil injection cavity and the delivery cavity, it is convenient for the user to inject lubricating oil at different heights within the nut body, and after a certain amount of lubricating oil is injected into the nut body, it is rotated. During the rotation process, the lubricating oil gradually fills the internal thread portion of the entire nut body, thereby ensuring that the nut can be smoothly screwed out from the bolt and avoiding the situation where it is difficult to disassemble the nut due to rust and jamming, playing a certain anti-jamming function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of an anti-jamming and easily detachable high-strength nut proposed by the present utility model;

[0015] Figure 2 is a schematic structural diagram of the cross-section of the nut body;

[0016] Figure 3 is a schematic structural diagram of a partial cross-section of the nut body.

[0017] In the figure: 1, nut body; 11, oil injection cavity; 12, delivery cavity; 13, delivery flow channel; 14, transition flow channel; 2, sealing block; 3, sealing plug; 4, limit retaining frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model 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 of the embodiments.

[0019] Referring to Figures 1 - 3 , an anti-jamming and easily detachable high-strength nut includes a nut body 1. Oil injection cavities 11 are opened on both sides within the nut body 1. An internal thread portion is provided in the middle of the nut body 1, and a plurality of delivery cavities 12 are equidistantly opened within the nut body 1 between the oil injection cavities 11 and the internal thread portion. A delivery flow channel 13 is opened on one side of the oil injection cavity 11 within the nut body 1;

[0020] On both sides of the nut body 1, oil injection holes are staggeredly arranged, and an oil injection flow channel group is arranged between the conveying flow channel 13 and the oil injection holes inside the nut body 1. Sealing blocks 2 are screwed on both sides of the nut body 1 at the positions of the oil injection holes.

[0021] At the same time, limit retaining frames 4 are fixedly installed outside the sealing blocks 2 on both sides of the nut body 1, and the length of the limit retaining frames 4 is greater than the length of the sealing blocks 2.

[0022] Moreover, a sealing plug 3 is adaptively clamped on one side of the limit retaining frame 4, and a clamping groove is arranged at the position of the sealing block 2 inside the sealing plug.

[0023] At the same time, the sealing block 2 includes a fixing part, a limiting part is installed on one side of the fixing part, a handle part is installed on one side of the limiting part, and a first external thread part is arranged outside the fixing part.

[0024] At the same time, a first internal thread part is adaptively arranged at the position of the first external thread part of the sealing block 2 inside the nut body 1, and the first internal thread part is threadedly connected with the first external thread part.

[0025] Furthermore, the oil injection flow channel group includes a conveying flow channel 13, the conveying flow channel 13 is arranged inside the nut body 1 and on one side of the oil injection cavity 11, and a transition flow channel 14 is arranged between the conveying cavity 12 and the oil injection holes inside the nut body 1.

[0026] In this embodiment, through the oil injection holes, the oil injection flow channel group, the oil injection cavity 11 and the conveying cavity 12, it is convenient for the user to inject lubricating oil at different heights inside the nut body 1. And after a certain amount of lubricating oil is injected into the nut body 1, it is rotated. During the rotation process, the lubricating oil gradually fills the internal thread part of the whole nut body 1, so as to ensure that the nut can be smoothly screwed out from the bolt, and avoid the situation that it is difficult to disassemble the nut due to rust and jamming, playing a certain anti-jamming function.

[0027] At the same time, when there is no need to add lubricating oil inside, by screwing the sealing block 2 with the nut body 1, the oil injection holes are blocked, and the sealing block 2 is blocked by the limit retaining frame 4 and the sealing plug block 3, avoiding accidental touch during the non-use process, and avoiding dust from entering the inside when it is not in use.

[0028] In this utility model, through the oil injection holes, the oil injection flow channel group, the oil injection cavity 11 and the conveying cavity 12, it is convenient for the user to inject lubricating oil at different heights inside the nut body 1. And after a certain amount of lubricating oil is injected into the nut body 1, it is rotated. During the rotation process, the lubricating oil gradually fills the internal thread part of the whole nut body 1, so as to ensure that the nut can be smoothly screwed out from the bolt, and avoid the situation that it is difficult to disassemble the nut due to rust and jamming, playing a certain anti-jamming function.

[0029] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A high-strength nut that is easy to disassemble and prevents sticking, comprising a nut body (1), characterized in that: The nut body (1) has oil injection cavities (11) on both sides thereof, an internal thread portion is provided in the middle of the nut body (1), a plurality of delivery cavities (12) are provided in the nut body (1) at equal distances between the oil injection cavity (11) and the internal thread portion, and a delivery channel (13) is provided in the nut body (1) on one side of the oil injection cavity (11); Oil injection holes are staggered on both sides of the nut body (1), and an oil injection channel group is provided in the nut body (1) between the delivery channel (13) and the oil injection holes. Sealing blocks (2) are screwed at the oil injection holes on both sides of the nut body (1).

2. The anti-seizure and easy-to-detach high-strength nut according to claim 1, characterized in that: Limit stop frames (4) are fixedly mounted on both sides of the nut body (1) outside the sealing block (2), and the length of the limit stop frames (4) is greater than the length of the sealing block (2).

3. The anti-seizure and easy-to-detach high-strength nut according to claim 1, characterized in that: A sealing plug (3) is provided on one side of the limit stop frame (4), and a card slot is provided in the sealing plug at the sealing block (2).

4. The anti-seizure and easy-to-detach high-strength nut according to claim 1, characterized in that: The sealing block (2) comprises a fixing portion, a limiting portion is installed on one side of the fixing portion, a handle portion is installed on one side of the limiting portion, and a first external thread portion is arranged outside the fixing portion.

5. The anti-seizure and easily disassembled high-strength nut according to claim 1, characterized in that: A first internal threaded portion is adapted to be arranged at the first external threaded portion of the sealing block (2) in the nut body (1), and the first internal threaded portion is threadedly connected to the first external threaded portion.

6. The anti-seizure and easy-to-detach high-strength nut according to claim 1, characterized in that: The oil injection flow channel group comprises a delivery flow channel (13), the delivery flow channel (13) is opened in the nut body (1) and is located on one side of the oil injection cavity (11), and a transition flow channel (14) is opened in the nut body (1) between the delivery cavity (12) and the oil injection hole.

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