A hydraulic nut for facilitating the reinforcement of oil pipes

Abstract

The utility model discloses a hydraulic nut convenient to reinforce oil pipe, including hydraulic nut body, the top intercommunication of hydraulic nut body has the connecting pipe, the upper end sealed mounting of connecting pipe has the sealing seat, both sides of sealing seat top all lock tightly and have the sealing plug, both sides inside of sealing seat all are threadedly installed and have sealing adjusting lever. The utility model discloses through injecting hydraulic oil in hydraulic cavity, promotes sealing adjusting lever movement, can make the inside of sealing seat produce pre -tightening force, realizes the quick locking of oil pipe installation end, and the one end of oil pipe and sealing seat inside pass through locking internal thread connection, and its outside sealing washer cooperation support spring and elastic fixed sheet, forms multistage sealing structure, promotes the anti -leakage performance, can effectively seal the connecting part of oil pipe and sealing seat, in addition, further reinforce bottom structure through the external installation locking bolt, avoid the leakage of appearing in the use process and being subjected to the vibration.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic nut technology, specifically a hydraulic nut that facilitates the reinforcement of oil pipes. Background Technology

[0002] Hydraulic nuts, as an important locking component, are widely used in various engineering equipment. Their working principle involves inputting oil through an external oil pipe connected to a hydraulic cylinder, raising the internal top block, thereby increasing the fixed position of the bolt, and finally manually tightening the metal nut to complete the reinforcement operation. However, in the use of traditional hydraulic nuts, the sealing of the oil pipe connection is mostly a single-layer seal, which only uses a threaded connecting sleeve to squeeze and seal the high-pressure oil pipe. This sealing method has obvious defects. Once the seal fails, it will cause serious problems such as diesel fuel mixing into the engine oil, resulting in engine oil dilution, reduced viscosity, decreased engine oil pressure, and insufficient lubrication. In mild cases, cylinder scoring and bearing failure may occur, and in severe cases, even bearing seizure may occur. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic nut that facilitates the reinforcement of oil pipes, and has the advantages of multi-stage sealing and reinforcement of oil pipe connection parts.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic nut for facilitating the reinforcement of oil pipes, comprising a hydraulic nut body, a connecting pipe connected to the top of the hydraulic nut body, a sealing seat sealed at the upper end of the connecting pipe, sealing plugs locked on both sides of the top of the sealing seat, a sealing adjusting rod threadedly installed on both sides of the sealing seat, a connecting bracket threadedly installed at the outer end of the sealing adjusting rod, the end of the connecting bracket being connected to the outer side of the sealing seat, and a locking internal thread provided inside the sealing seat.

[0005] As a preferred embodiment, an annular mounting groove is provided at the upper end of the inner cavity of the sealing seat, a support spring is fixedly installed at the bottom of the inner cavity of the mounting groove, and a sealing gasket is fixedly installed at the upper end of the support spring, with the sealing gasket located above the sealing seat.

[0006] As a preferred embodiment, an elastic fixing piece is fixedly installed on the outer ring of the bottom of the sealing gasket, and the lower outer end of the elastic fixing piece is in contact with the inner wall of the sealing seat.

[0007] As a preferred embodiment, reinforcing gaskets are fitted and installed on both sides of the top of the sealing gasket, and positioning holes are provided on the surface of the reinforcing gaskets.

[0008] As a preferred embodiment, a locking bolt is installed on the top of the sealing seat and above the sealing gasket, and a sealing ring is installed on the outside of the upper end of the connecting pipe and connected to the bottom of the sealing seat.

[0009] As a preferred embodiment, the sealing seat has a hydraulic chamber inside, the lower end of the sealing plug is connected to the oil injection port above the hydraulic chamber, and the locking end of the sealing adjusting rod is located inside the hydraulic chamber.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model injects hydraulic oil into the hydraulic cavity, which pushes the sealing adjustment rod to move, generating a pre-tightening force inside the sealing seat. This allows for quick locking of the oil pipe installation end. After one end of the oil pipe is connected to the inside of the sealing seat through a locking internal thread, the external sealing gasket, together with the support spring and elastic fixing plate, forms a multi-stage sealing structure, improving leakage prevention performance. This effectively seals the connection between the oil pipe and the sealing seat. In addition, the external locking bolts further reinforce the bottom structure, preventing leakage due to vibration during use.

[0012] 2. This utility model uses an elastic fixing piece that can deform with the sealing gasket, tightly fitting the inner wall of the mounting groove, filling the tiny gaps between the sealing seat and the sealing gasket, preventing liquid leakage from the side, and forming a ring-shaped sealing barrier. Together with the sealing effect of the support spring and the top of the sealing gasket, it achieves a three-dimensional seal, greatly improving the sealing effect. The reinforcing gasket installed on the top of the sealing gasket can disperse the pressure of the oil pipe on the sealing gasket, avoid excessive local stress on the sealing gasket and damage, enhance the overall pressure resistance of the sealing assembly, extend the service life of the sealing gasket, and ensure that the hydraulic nut can work normally under high pressure. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0014] Figure 2 This is an enlarged view of the connecting pipe structure of this utility model;

[0015] Figure 3 This is an enlarged view of the upper structure of the connecting pipe of this utility model;

[0016] Figure 4 This is a front view of the sealing seat structure of this utility model.

[0017] In the diagram: 1. Hydraulic nut body; 2. Connecting pipe; 3. Sealing seat; 4. Sealing plug; 5. Sealing adjustment rod; 6. Connecting bracket; 7. Locking internal thread; 8. Mounting groove; 9. Support spring; 10. Sealing gasket; 11. Reinforcing gasket; 12. Locking bolt; 13. Sealing ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0020] Please see Figure 1 As shown, this utility model provides a hydraulic nut for easy reinforcement of oil pipes, including a hydraulic nut body 1, a connecting pipe 2 connected to the top of the hydraulic nut body 1, a sealing seat 3 sealed at the upper end of the connecting pipe 2, sealing plugs 4 locked on both sides of the top of the sealing seat 3, a sealing adjustment rod 5 threaded on both sides of the sealing seat 3, a connecting bracket 6 threaded on the outer end of the sealing adjustment rod 5, the end of the connecting bracket 6 connected to the outer side of the sealing seat 3, and a locking internal thread 7 provided inside the sealing seat 3.

[0021] This technical solution injects hydraulic oil into the hydraulic cavity, which pushes the sealing adjustment rod 5 to move, generating a pre-tightening force inside the sealing seat 3. This allows for rapid locking of the oil pipe installation end. Furthermore, after one end of the oil pipe is connected to the inside of the sealing seat 3 via the locking internal thread 7, the external sealing gasket 10, together with the support spring 9 and the elastic fixing plate, forms a multi-stage sealing structure, improving leakage prevention performance and effectively sealing the connection between the oil pipe and the sealing seat 3. In addition, the external locking bolt 12 further reinforces the bottom structure, preventing leakage due to vibration during use. Example

[0022] Based on Embodiment 1, this utility model is as follows: Figure 3 As shown, the upper end of the inner cavity of the sealing seat 3 is provided with an annular mounting groove 8, the bottom of the inner cavity of the mounting groove 8 is fixedly installed with a support spring 9, the upper end of the support spring 9 is fixedly installed with a sealing gasket 10, and the sealing gasket 10 is located above the sealing seat 3.

[0023] Adopting such Figure 1The technical solution shown, in combination of support spring 9 and sealing gasket 10, gives the sealing structure dynamic adjustment capability. When the hydraulic nut locks the oil pipe, the oil pipe squeezes the sealing gasket 10, and the support spring 9 is compressed to generate elastic reaction force, which pushes the sealing gasket 10 to fit tightly against the outer wall of the oil pipe, forming an adaptive seal.

[0024] Secondly, in the technical solution, an elastic fixing piece is fixedly installed on the outer ring of the bottom of the sealing gasket 10, and the lower end of the elastic fixing piece is in contact with the inner wall of the sealing seat 3; a reinforcing gasket 11 is attached to both sides of the top of the sealing gasket 10, and a positioning hole is opened on the surface of the reinforcing gasket 11.

[0025] Its adoption is as follows Figure 1 The technical solution shown allows the elastic fixing piece to deform with the sealing gasket 10, tightly fitting the inner wall of the mounting groove 8, filling the tiny gaps between the sealing seat 3 and the sealing gasket 10, preventing liquid leakage from the side, and forming an annular sealing barrier. This works in conjunction with the sealing action of the support spring 9 and the top of the sealing gasket 10 to achieve a three-dimensional seal, greatly improving the sealing effect. The reinforcing gasket 11, installed on top of the sealing gasket 10, can disperse the pressure of the oil pipe on the sealing gasket 10, preventing the sealing gasket 10 from being damaged due to excessive local stress, enhancing the overall pressure resistance of the sealing assembly, extending the service life of the sealing gasket 10, and ensuring that the hydraulic nut can work normally under high pressure. Example

[0026] This utility model is as follows Figures 1-4 As shown, a locking bolt 12 is installed on the top of the sealing seat 3 above the sealing gasket 10, and a sealing ring 13 is installed on the outside of the upper end of the connecting pipe 2 and connected to the bottom of the sealing seat 3; a hydraulic chamber is opened inside the sealing seat 3, the lower end of the sealing plug 4 is connected to the oil injection port above the hydraulic chamber, and the locking end of the sealing adjustment rod 5 is located inside the hydraulic chamber.

[0027] By adopting the above technical solution, tightening the locking bolt 12 can apply a certain preload to the sealing gasket 10. Combined with the elastic force of the support spring 9, this makes the sealing gasket 10 fit more tightly with the oil pipe and sealing seat 3, enhancing the initial sealing effect and improving the overall sealing reliability. During equipment maintenance, worn sealing gaskets 10, reinforcing gaskets 11, and other components can be easily replaced by disassembling or tightening the locking bolt 12. At the same time, the tightness of the sealing components can be adjusted according to actual working conditions to optimize sealing performance. The sealing plug 4 serves as the inlet and outlet of hydraulic oil, allowing for easy adjustment of the pressure in the hydraulic chamber to adapt to the needs of oil pipes of different diameters and materials. During equipment maintenance, hydraulic oil can be quickly released through the sealing plug 4, allowing the sealing adjustment rod 5 to reset, facilitating the disassembly of the hydraulic nut and reducing maintenance difficulty.

[0028] The working principle of this utility model is as follows: The lower end of the oil pipe is locked and installed inside the sealing seat 3. Then, the sealing gasket 10 is pressed down, causing the bottom support spring 9 to contract. The elastic fixing piece of the bottom outer ring is attached and fixed to the inner wall of the mounting groove 8. Then, the reinforcing gasket 11 is fixed to the top of the sealing gasket 10 with screws and installed against the surface of the oil pipe. Next, the locking bolt 12 is put on the outside of the lower end of the oil pipe and pressed against the top of the reinforcing gasket 11. Then, hydraulic oil is injected into the hydraulic chamber through the oil injection port. The sealing adjustment rod 5 is driven to move by the threaded rotation, which can generate a pre-tightening force inside the sealing seat 3, realizing the rapid locking of the oil pipe installation end.

[0029] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0030] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A hydraulic nut for facilitating the reinforcement of oil pipes, comprising a hydraulic nut body (1), characterized in that: The top of the hydraulic nut body (1) is connected to a connecting pipe (2). A sealing seat (3) is sealed at the upper end of the connecting pipe (2). Sealing plugs (4) are locked on both sides of the top of the sealing seat (3). Sealing adjustment rods (5) are threaded on both sides of the sealing seat (3). A connecting bracket (6) is threaded on the outer end of the sealing adjustment rod (5). The end of the connecting bracket (6) is connected to the outer side of the sealing seat (3). A locking internal thread (7) is provided inside the sealing seat (3).

2. The hydraulic nut for facilitating the reinforcement of oil pipes according to claim 1, characterized in that: The upper end of the inner cavity of the sealing seat (3) is provided with an annular mounting groove (8), and a support spring (9) is fixedly installed at the bottom of the inner cavity of the mounting groove (8). A sealing gasket (10) is fixedly installed at the upper end of the support spring (9), and the sealing gasket (10) is located above the sealing seat (3).

3. A hydraulic nut for facilitating the reinforcement of oil pipes according to claim 2, characterized in that: An elastic fixing piece is fixedly installed on the outer ring of the bottom of the sealing gasket (10), and the lower end of the elastic fixing piece is in contact with the inner wall of the sealing seat (3).

4. A hydraulic nut for facilitating the reinforcement of oil pipes according to claim 2, characterized in that: Both sides of the top of the sealing gasket (10) are fitted with reinforcing gaskets (11), and the surface of the reinforcing gaskets (11) is provided with positioning holes.

5. A hydraulic nut for facilitating the reinforcement of oil pipes according to claim 1, characterized in that: A locking bolt (12) is installed on the top of the sealing seat (3) and above the sealing gasket (10), and a sealing ring (13) is installed on the outside of the upper end of the connecting pipe (2) and connected to the bottom of the sealing seat (3).

6. A hydraulic nut for facilitating the reinforcement of oil pipes according to claim 1, characterized in that: The sealing seat (3) has a hydraulic chamber inside, the lower end of the sealing plug (4) is connected to the oil injection port above the hydraulic chamber, and the locking end of the sealing adjustment rod (5) is located inside the hydraulic chamber.

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