Low-energy-consumption forging process-based antioxidant hydraulic joint
By setting a sealing mechanism on the hydraulic joint, and utilizing the push rod and push plate structure, the sealing ring can be easily pushed out, solving the problem of inconvenient sealing ring replacement and achieving efficient sealing ring replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HENGZHAN MASCH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-14
AI Technical Summary
The existing low-energy forging process for oxidation-resistant hydraulic joints has inconvenient sealing ring replacement, and the sealing ring is difficult to remove from the installation groove.
A sealing mechanism is set at both ends of the hydraulic joint, including a sliding hole and a push rod. The sealing ring is pushed out through the cooperation of the push rod and the push plate, which facilitates replacement.
It simplifies the replacement process of the sealing ring, avoids the problem of the outer inclined part of the sealing ring being difficult to remove, and improves the replacement efficiency.
Smart Images

Figure CN224497815U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an anti-oxidation hydraulic joint, specifically an anti-oxidation hydraulic joint based on a low-energy forging process, belonging to the field of hydraulic joint technology. Background Technology
[0002] Hydraulic fittings are key components in hydraulic systems used to connect different hydraulic components (such as pumps, delivery pipelines, directional valves, shut-off valves, hydraulic motors, hydraulic cylinders, etc.) to form a closed loop. The following section discusses their definition, types, and application areas. Connecting different hydraulic components ensures the smooth transmission of hydraulic fluid within the system, while also requiring good sealing performance to prevent liquid leakage and guarantee the stability and efficiency of the entire hydraulic system. Using multi-directional forging or warm forging techniques can reduce repeated heating processes, and applying an anti-oxidation coating to the fitting surface can improve its service life.
[0003] However, current low-energy forging process anti-oxidation hydraulic joints have installation grooves at both ends for installing gaskets. In order to prevent the sealing ring from falling off, the bottom of the sealing ring is generally designed to be wider than the top. The sealing ring on the joint is in contact with the end of the hydraulic rod for a long time. When the sealing ring ages and needs to be replaced, it is necessary to pry it out with a thin tool. It is not convenient to remove the sealing ring from the installation groove at the end of the joint. Utility Model Content
[0004] The purpose of this invention is to provide an anti-oxidation hydraulic joint based on a low-energy forging process to solve the above problems. By setting components at both ends of the hydraulic joint to push out the sealing ring, it is convenient to remove and replace the aged sealing ring from the hydraulic joint.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: an anti-oxidation hydraulic connector based on low-energy forging process, comprising a connector body and a nut fixed on the connector body. Both ends of the connector body are equipped with conveying mechanisms and sealing mechanisms. Each sealing mechanism includes two mounting grooves. Both ends of the connector body have mounting grooves, and sealing rings are engaged within each of the two mounting grooves. Both ends of the connector body have axially oriented sliding holes. A push rod that slidably contacts the sealing ring is slidably connected within the sliding holes. The inner side of the connector body, opposite the nut, has a movable groove communicating with the sliding hole. A push plate penetrating the movable groove is welded to the side wall of the push rod.
[0006] Preferably, the inner side of the sealing ring and the mounting groove is horizontally arranged, and the outer edge of the sealing ring and the mounting groove is inclined.
[0007] Preferably, the sliding holes and movable grooves located at both ends of the connector body are distributed in a circumferential array, and the two sets of sliding holes have the same depth.
[0008] Preferably, the push rod has a cylindrical structure, and the push rod and the push plate have an L-shaped structure.
[0009] Preferably, the sealing mechanism further includes a sponge pad, and a sponge pad is provided at each of the multiple movable grooves. One side of the sponge pad is bonded to the push plate, and the other side of the sponge pad is bonded to the inner wall of the connector body.
[0010] Preferably, a filter mechanism is installed at one end of the connector body. The filter mechanism includes a fixing strip, and a fixing strip is fixedly connected between four push plates in one group. A filter screen is provided on one side of the fixing strip, and a nut is threaded onto the fixing strip. The filter screen is clamped between the nut and the fixing strip, and the filter screen abuts against the four push plates.
[0011] Preferably, the diameter of the filter screen is equal to the inner diameter of the connector body, and the nut is located at the center of the fixing strip.
[0012] Preferably, the filtering mechanism further includes a connecting plate, and a connecting plate is welded between each of two adjacent push plates.
[0013] Preferably, all four connecting plates are arc-shaped, and the four connecting plates are arranged in a circular structure, while the fixing strip is cross-shaped.
[0014] Preferably, the conveying mechanism includes two oil pipes, both ends of the connector body abut against the oil pipes, and each of the two oil pipes is fitted with a second nut, which is threadedly connected to the connector body.
[0015] The beneficial effects of this utility model are as follows: When it is necessary to replace the sealing rings inside the movable grooves at both ends of the connector, the four push plates can be pulled one by one. The push plates move inside the movable grooves, and the pulling direction is located at the port of the connector body. After the four push plates are subjected to force, the push rod inside the sliding hole is pushed out, thereby squeezing the sealing ring inside the mounting groove. This makes it easier to push the aged sealing ring out from the inside of the mounting groove. After the sealing ring is pushed out, a gap is created between it and the movable groove, making it easier to pull out the sealing ring for replacement and avoiding the difficulty in removing the outer inclined part of the sealing ring. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the connection structure of the connector body, oil pipe, push rod and sealing ring of this utility model;
[0018] Figure 3 This is a schematic diagram of the connection structure of the push rod, sponge pad and push plate of this utility model;
[0019] Figure 4 This is a schematic diagram of the connection structure of the push plate, fixing strip and filter screen of this utility model;
[0020] Figure 5 This is a schematic diagram of the connection structure of the connector body, movable groove, sliding hole and mounting groove of this utility model;
[0021] Figure 6 This is a schematic diagram of the connection structure of the push rod, sponge pad, push plate and filter screen of this utility model;
[0022] Figure 7 This is a schematic diagram of the connection structure of the fixing strip and the push plate of this utility model.
[0023] In the diagram: 1. Connector body; 2. Nut 1; 3. Conveying mechanism; 301. Oil pipe; 302. Nut 2; 4. Sealing mechanism; 401. Sealing ring; 402. Push rod; 403. Mounting groove; 404. Sponge pad; 405. Push plate; 406. Sliding hole; 407. Movable groove; 5. Filtering mechanism; 501. Filter screen; 502. Fixing strip; 503. Nut; 504. Connecting plate. Detailed Implementation
[0024] 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.
[0025] Please see Figures 1-7 As shown, an anti-oxidation hydraulic connector based on low-energy forging process includes a connector body 1 and a nut 2 fixed on the connector body 1. Both ends of the connector body 1 are equipped with a conveying mechanism 3 and a sealing mechanism 4. The sealing mechanism 4 includes two mounting grooves 403. Both ends of the connector body 1 have mounting grooves 403, and sealing rings 401 are engaged within each of the two mounting grooves 403. Both ends of the connector body 1 have axially formed sliding holes 406. A push rod 402, which slidably contacts the sealing ring 401, is slidably connected inside the sliding hole 406. The inner side of the connector body 1, opposite to the nut 2, has a movable groove 407 communicating with the sliding hole 406. A push plate 405, penetrating the movable groove 407, is welded to the side wall of the push rod 402.
[0026] As a technical optimization of this utility model, the inner side of the sealing ring 401 and the mounting groove 403 is horizontally arranged, and the outer edge of the sealing ring 401 and the mounting groove 403 is inclined, which can prevent the sealing ring 401 from falling off during installation.
[0027] As a technical optimization of this utility model, the sliding holes 406 and movable grooves 407 located at both ends of the connector body 1 are arranged in a circumferential array. The two sets of sliding holes 406 have the same depth, so that multiple push rods 402 are installed in a circumferential array at both ends of the connector body 1 to push out the sealing ring 401 at multiple points.
[0028] As a technical optimization of this utility model, the push rod 402 has a cylindrical structure, and the push rod 402 and the push plate 405 have an L-shaped structure, which facilitates the push plate 405 to be pulled inside the connector body 1 to push the push rod 402 to squeeze out the sealing ring 401.
[0029] As a technical optimization of this utility model, the sealing mechanism 4 further includes a sponge pad 404. A sponge pad 404 is provided at each of the multiple movable grooves 407. One side of the sponge pad 404 is bonded to the push plate 405, and the other side of the sponge pad 404 is bonded to the inner wall of the connector body 1. This achieves the blocking of the gap between the push plate 405 and the connector body 1, preventing impurities from entering the interior of the movable groove 407 and affecting the sliding of the push rod 402, while also ensuring that the push plate 405 can slide.
[0030] As a technical optimization of this utility model, a filter mechanism 5 is installed at one end of the connector body 1. The filter mechanism 5 includes a fixing strip 502. The fixing strip 502 is fixedly connected between four push plates 405 in one group. A filter screen 501 is provided on one side of the fixing strip 502. A nut 503 is threadedly connected to the fixing strip 502. The filter screen 501 is clamped between the nut 503 and the fixing strip 502. The filter screen 501 abuts against the four push plates 405. The push plates 405 cooperate with the fixing strip 502 to install the filter screen 501. In this way, the hydraulic oil being transported is filtered to avoid damage to the oil circuit or the use of hydraulic equipment due to excessive pressure.
[0031] As a technical optimization of this utility model, the diameter of the filter screen 501 is equal to the inner diameter of the connector body 1, and the nut 503 is located at the center of the fixing strip 502, fully covering the entire interior of the connector body 1 and completely blocking impurities; the filtering mechanism 5 also includes a connecting plate 504, and a connecting plate 504 is welded between two adjacent push plates 405 to improve the stability of the installation of the filter screen 501. The four connecting plates 504 are all arc-shaped, and the four connecting plates 504 are in a circular structure. The fixing strip 502 is in a cross-shaped structure, which increases the stability between the four connecting plates 504 and the fixing strip 502.
[0032] As a technical optimization of this utility model, the conveying mechanism 3 includes two oil pipes 301. Both ends of the connector body 1 are in contact with the oil pipes 301. Each of the two oil pipes 301 is fitted with a second nut 302. The second nut 302 is threadedly connected to the connector body 1, thereby realizing the conveying of hydraulic oil through the oil pipe 301 at one end of the filter screen 501. The hydraulic oil can be filtered by the filter screen 501, and the filtered hydraulic oil is discharged from the oil pipe 301 at the other end of the connector body 1 and connected to the hydraulic equipment to complete the entire hydraulic oil conveying.
[0033] In use, this invention is first implemented by designating the oil inlet pipe 301 near the filter screen 501 as the oil inlet during the installation of the entire hydraulic system, and the outlet pipe 301 at the other end of the connector body 1 as the outlet. The outlet pipe 301 is then connected to the hydraulic equipment. The filter screen 501 filters out impurities in the hydraulic oil, protecting the oil circuit. The two oil inlets pipes 301 are then brought into contact with both ends of the connector body 1, and the nuts 302 on the two oil inlets pipes 301 are simultaneously rotated to connect the oil inlets pipes 301 to the connector body. 1. Connection; then, the sealing rings 401 located inside the mounting grooves 403 at both ends of the connector body 1 can abut against the oil pipe 301 to prevent oil leakage. When the hydraulic oil is conveyed, the cross-shaped fixing strips 502 can cooperate with the four connecting plates 504 to support the filter screen 501 and prevent the filter screen 501 from deforming. When cleaning the impurities blocked by the filter screen 501, rotating the nuts 503 located on the fixing strips 502 can make the filter screen 501 not fixed, and the filter screen 501 can be removed for cleaning; finally, if located in When the sealing rings 401 at both ends of the connector body 1 need to be replaced, disconnect the two nuts 302 from the connector body 1. Then, disassemble the filter screen 501 according to the above steps. Cleaning impurities and replacing the sealing rings 401 can be done simultaneously. Pull the four push plates 405 one by one, with the pulling direction at the port of the connector body 1. After the four push plates 405 are subjected to force, they push out the push rods 402 inside the four sliding holes 406, thereby compressing the sealing rings 401 inside the mounting groove 403. This facilitates the removal of aged sealing rings 401 from the inside of the mounting groove 403, allowing for easy replacement of the sealing rings 401. It also prevents the outer inclined part of the sealing rings 401 from being difficult to remove. During hydraulic oil delivery, the sponge pad 404 can prevent smaller impurities in the oil from entering the sliding hole 406 and affecting the sliding of the push rod 402. When replacing the sealing rings 401 located at one end of the filter screen 501, the fixing strip 502 can be pulled directly, allowing the four push plates 405 to be simultaneously subjected to force to push the push rod 402 out, thus removing the sealing rings 401.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An anti-oxidation hydraulic joint based on low-energy forging process, comprising a joint body (1) and a nut (2) fixed on the joint body (1), characterized in that: Both ends of the connector body (1) are equipped with a conveying mechanism (3), and both ends of the connector body (1) are equipped with a sealing mechanism (4). The sealing mechanism (4) includes two mounting grooves (403). Both ends of the connector body (1) are provided with mounting grooves (403). Both mounting grooves (403) are fitted with sealing rings (401). Both ends of the connector body (1) are provided with sliding holes (406) axially. The sliding holes (406) are slidably connected with push rods (402) that abut against the sealing rings (401). The inner side of the connector body (1) is provided with a movable groove (407) that communicates with the sliding holes (406) relative to the nut (2). The side wall of the push rod (402) is welded with a push plate (405) that penetrates the movable groove (407).
2. The oxidation-resistant hydraulic joint based on low-energy forging process according to claim 1, characterized in that: The sealing ring (401) and the mounting groove (403) are horizontally arranged on the inner side, and the sealing ring (401) and the mounting groove (403) are inclined at the outer edge.
3. The oxidation-resistant hydraulic joint based on low-energy forging process according to claim 1, characterized in that: The sliding holes (406) and movable grooves (407) located at both ends of the connector body (1) are arranged in a circular array, and the two sets of sliding holes (406) have the same depth.
4. The anti-oxidation hydraulic joint based on low-energy forging process according to claim 1, characterized in that: The push rod (402) has a cylindrical structure, and the push rod (402) and the push plate (405) have an L-shaped structure.
5. The anti-oxidation hydraulic joint based on low-energy forging process according to claim 1, characterized in that: The sealing mechanism (4) also includes a sponge pad (404), and a sponge pad (404) is provided at each of the multiple movable grooves (407). One side of the sponge pad (404) is bonded to the push plate (405), and the other side of the sponge pad (404) is bonded to the inner wall of the connector body (1).
6. The oxidation-resistant hydraulic joint based on low-energy forging process according to claim 1, characterized in that: A filter mechanism (5) is installed at one end of the connector body (1). The filter mechanism (5) includes a fixing strip (502). The fixing strip (502) is fixedly connected between four push plates (405) in one group. A filter screen (501) is provided on one side of the fixing strip (502). A nut (503) is threaded onto the fixing strip (502). The filter screen (501) is clamped between the nut (503) and the fixing strip (502). The filter screen (501) abuts against the four push plates (405).
7. The oxidation-resistant hydraulic joint based on low-energy forging process according to claim 6, characterized in that: The diameter of the filter screen (501) is equal to the inner diameter of the connector body (1), and the nut (503) is located at the center of the fixing strip (502).
8. The oxidation-resistant hydraulic joint based on low-energy forging process according to claim 6, characterized in that: The filter mechanism (5) also includes a connecting plate (504), and a connecting plate (504) is welded between each of the two adjacent push plates (405).
9. The oxidation-resistant hydraulic joint based on low-energy forging process according to claim 8, characterized in that: The four connecting plates (504) are all arc-shaped, and the four connecting plates (504) are in a circular structure. The fixing strip (502) is in a cross-shaped structure.
10. The anti-oxidation hydraulic joint based on low-energy forging process according to claim 1, characterized in that: The conveying mechanism (3) includes two oil pipes (301), and both ends of the connector body (1) are in contact with the oil pipes (301). The two oil pipes (301) are fitted with nuts (302), and the nuts (302) are threadedly connected to the connector body (1).