Leakage-proof rubber sealing ring for hydraulic machine
By designing a docking mechanism and a reinforcing mechanism for the upper and lower sealing rings, the problem of replacing hydraulic press sealing rings under space constraints is solved, achieving convenient replacement and sealing effect under high pressure, thus preventing liquid leakage.
Patent Information
- Application Number
- CN202520845807.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-30
AI Technical Summary
Existing hydraulic presses use rubber seals for leak prevention, which are difficult to replace in situations where space is limited or equipment is tightly connected, increasing maintenance difficulty.
A mating mechanism comprising an upper sealing ring and a lower sealing ring is designed. Through the cooperation of the upper and lower arc-shaped protrusions and the mating of the upper hemisphere block and the lower hemisphere groove, combined with a reinforcing mechanism and an elastic band, a stable mating and fastening of the sealing ring is achieved.
It enables convenient replacement of sealing rings in space-constrained situations, ensures the sealing performance of the hydraulic press under high-pressure environments, and prevents liquid leakage and seal loosening.
Smart Images
Figure CN223923809U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber sealing ring technology, specifically a rubber sealing ring for preventing leakage in hydraulic presses. Background Technology
[0002] The anti-leakage rubber seal ring of the hydraulic press is a key component used to seal the hydraulic system, prevent liquid leakage, and ensure the normal operation of the hydraulic press. The seal ring is usually made of pressure-resistant, temperature-resistant, and oil-resistant rubber material, and has excellent elasticity and sealing performance. It can effectively prevent hydraulic oil or other liquids from leaking out during the operation of the hydraulic press, ensuring the safety and efficiency of the system.
[0003] Existing leak-proof rubber seals for hydraulic presses typically employ an integrated ring design. This design requires the seal to be completely removed from the hydraulic press's output shaft during replacement, often necessitating the head of the output shaft protruding from the hydraulic press assembly for fitting and replacement. However, in some practical applications, the hydraulic press's output shaft is tightly connected to other components, making easy separation impossible. For example, when the hydraulic press is embedded in a fixed work platform or production line, the spatial constraints on the output shaft make direct access and seal replacement difficult. Furthermore, the working environment of the hydraulic press may present spatial limitations, failing to provide sufficient operating space for smooth seal replacement. In such cases, the replacement difficulties inherent in the traditional ring seal design increase the complexity of equipment maintenance.
[0004] In view of this, we propose a rubber sealing ring for preventing leakage in hydraulic presses. Utility Model Content
[0005] The purpose of this utility model is to provide a rubber sealing ring for preventing leakage in hydraulic presses. This rubber sealing ring for preventing leakage in hydraulic presses solves the problem that when replacing the existing ring-shaped sealing ring of hydraulic presses, the output shaft needs to be exposed from the device. However, in situations where space is limited or the equipment is tightly connected, it is not easy to disassemble, which increases the difficulty of maintenance.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A rubber sealing ring for preventing leakage in a hydraulic press includes an upper sealing ring and a lower sealing ring. The upper and lower sealing rings are provided with a mating mechanism, which includes: an upper opening on the upper sealing ring, with two symmetrically arranged upper arc-shaped protrusions and an upper arc-shaped notch at the bottom, and an upper hemispherical block at the bottom; and a lower opening on the lower sealing ring, with two symmetrically arranged lower arc-shaped protrusions and a lower arc-shaped notch at the top, and a lower hemispherical groove at the top. Both the upper and lower sealing rings are provided with a reinforcing mechanism, which applies an inward tightening force to the upper and lower sealing rings.
[0008] Preferably, there are several upper hemispherical blocks arranged in a circumferential array at the bottom of the upper sealing ring, and there are several lower hemispherical grooves arranged in a circumferential array at the top of the lower sealing ring.
[0009] Preferably, the reinforcing mechanism includes an annular groove, which is disposed on the outer wall of the upper and lower sealing rings. An elastic band is disposed inside the annular groove, and a semi-cylindrical joint is disposed on the elastic band. The semi-cylindrical joint is disposed on a plurality of positioning grooves. The reinforcing mechanism also includes a positioning rod, which is used to insert into the positioning grooves. A positioning strip is disposed on the positioning rod, and the positioning strip is engaged with the upper and lower sealing rings.
[0010] Preferably, the lower hemisphere groove is an arc-shaped groove, and its shape precisely matches the upper hemisphere block.
[0011] Preferably, the elastic band is made of high-temperature resistant and oil-resistant rubber material, and the semi-cylindrical joint is a detachable structure.
[0012] Preferably, the mating surface between the upper hemisphere and the lower hemisphere groove is coated with an anti-corrosion coating to extend its service life and reduce wear during long-term use.
[0013] Preferably, both the upper and lower sealing rings are provided with multiple annular reinforcing ribs to further enhance the sealing rings' ability to withstand pressure during operation.
[0014] By employing the above technical solution, this utility model provides a rubber sealing ring for preventing leakage in hydraulic presses. It possesses at least the following beneficial effects:
[0015] 1. This utility model eliminates the need to completely remove the output shaft from the hydraulic press device through the docking mechanism, thereby reducing the difficulty of access or operation due to space limitations. Even if the hydraulic press is embedded in a fixed platform or production line, the sealing ring can be replaced through this docking mechanism.
[0016] 2. Through the cooperation of the upper and lower arc-shaped protrusions and the docking of the upper hemisphere block and the lower hemisphere groove, the sealing ring provides a stable sealing force during use, preventing liquid leakage or loosening of the seal and ensuring the sealing performance of the hydraulic press under high pressure. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the upper sealing ring in this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the lower sealing ring in this utility model;
[0021] Figure 4 This is a schematic diagram of the annular groove in this utility model;
[0022] Figure 5 This is a schematic diagram of the elastic band in this utility model;
[0023] Figure 6 This utility model Figure 5 A magnified structural diagram of point A in the middle.
[0024] In the diagram: 1. Upper sealing ring; 2. Lower sealing ring; 3. Connecting mechanism; 31. Upper break; 32. Upper arc-shaped protrusion; 33. Upper arc-shaped notch; 34. Upper hemispherical block; 35. Lower break; 36. Lower arc-shaped protrusion; 37. Lower arc-shaped notch; 38. Lower hemispherical groove; 4. Reinforcing mechanism; 41. Annular groove; 42. Elastic band; 43. Semi-cylindrical joint; 44. Positioning groove; 45. Positioning rod; 46. Positioning strip. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1 - Figure 6As shown, this utility model provides a technical solution: a rubber sealing ring for preventing leakage in a hydraulic press, including an upper sealing ring 1 and a lower sealing ring 2. A docking mechanism 3 is provided on the upper sealing ring 1 and the lower sealing ring 2. The docking mechanism 3 includes: an upper opening 31, which is located on the upper sealing ring 1; two symmetrical upper arc-shaped protrusions 32 are provided on the bottom of the upper sealing ring 1, which are located on both sides of the upper opening 31 and can be combined to form a semi-cylinder-like shape; an upper arc-shaped notch 33 is provided at the bottom of the upper sealing ring 1. The system includes an upper hemispherical block 34 and a lower opening 35, which is located on the lower sealing ring 2. The lower sealing ring 2 has two symmetrically arranged lower arc-shaped protrusions 36 on its top, positioned on either side of the lower opening 35. These protrusions, when combined, form a semi-cylindrical shape. The lower sealing ring 2 also has a lower arc-shaped notch 37 and a lower hemispherical groove 38. When the output shaft of the hydraulic press needs to be replaced, the upper sealing ring 1 can be opened along the upper opening 31, and the lower sealing ring 2 can be opened along the lower opening 35. Then, according to… Figure 1 As shown, the two upper arc-shaped protrusions 32 are inserted into the lower arc-shaped notch 37, and the two lower arc-shaped protrusions 36 are inserted into the upper arc-shaped notch 33. At this time, the upper sealing ring 1 and the lower sealing ring 2 are mated together, and are engaged by the action of the upper arc-shaped protrusions 32 and the lower arc-shaped notch 37, as well as the lower arc-shaped protrusions 36 and the upper arc-shaped notch 33. When the upper sealing ring 1 and the lower sealing ring 2 are mated together through the above-mentioned engagement, the friction and pressure generated between the semi-cylindrical protrusions and the arc-shaped notches will generate a circumferential force. This force causes the two upper arc-shaped protrusions 32 and the lower arc-shaped notches 37 to be inserted into the upper arc-shaped notch 33. The protrusions 36 are tightly compressed, preventing the upper sealing ring 1 and lower sealing ring 2 from easily opening during use. This ensures the sealing effect of the upper and lower sealing rings 1 and 2 in the hydraulic system and prevents the upper and lower disconnections 31 and 35 from opening during operation. Both the upper and lower sealing rings 1 and 2 are equipped with reinforcing mechanisms 4. These mechanisms apply an inward tightening force to the upper and lower sealing rings 1 and 2, making the contact between the upper and lower disconnections 31 and 35 more secure and thus enhancing the circumferential sealing pressure of the sealing rings. This method better adapts to the action of high-pressure liquids and prevents liquid leakage.
[0027] Several upper hemispherical blocks 34 are arranged in a circumferential array at the bottom of the upper sealing ring 1. Several lower hemispherical grooves 38 are arranged in a circumferential array at the top of the lower sealing ring 2. When the upper sealing ring 1 and the lower sealing ring 2 are fitted together, the upper hemispherical blocks 34 and the lower hemispherical grooves 38 abut each other, forming multiple tight contact points. Through this design, each upper hemispherical block 34 can be precisely embedded in the corresponding lower hemispherical groove 38, ensuring that each position of the upper sealing ring 1 and the lower sealing ring 2 maintains a stable connection. The advantage of this design is that the abutment of multiple upper hemispherical blocks 34 and lower hemispherical grooves 38 enhances the contact pressure of the sealing rings throughout the entire circumference, provides uniform sealing force, and prevents liquid leakage or loosening of the seal.
[0028] The reinforcing mechanism 4 includes an annular groove 41, which is disposed on the outer wall of the upper sealing ring 1 and the lower sealing ring 2. An elastic band 42 is disposed inside the annular groove 41, and a semi-cylindrical joint 43 is disposed on the elastic band 42. The semi-cylindrical joint 43 is provided with several positioning grooves 44. The reinforcing mechanism 4 also includes a positioning rod 45, which is used to insert into the positioning grooves 44, thereby fixing the semi-cylindrical joint 43 and fixing the elastic band 42. A positioning strip 46 is disposed on the positioning rod 45, which is snapped onto the upper sealing ring 1 and the lower sealing ring 2 for easy pulling out of the positioning rod 45.
[0029] The lower hemispherical groove 38 is an arc-shaped groove, and its shape precisely matches the upper hemispherical block 34 to ensure a tight fit between the two. The elastic band 42 is made of high-temperature and oil-resistant rubber material to ensure effective operation under high temperature and high pressure environments. The semi-cylindrical joint 43 is a detachable structure, which facilitates disassembly and installation during replacement or maintenance. The mating surface between the upper hemispherical block 34 and the lower hemispherical groove 38 is coated with an anti-corrosion coating to extend its service life and reduce wear during long-term use. Both the upper sealing ring 1 and the lower sealing ring 2 are provided with multiple annular reinforcing ribs to further enhance the sealing ring's ability to withstand pressure during operation.
[0030] When using the rubber sealing ring for preventing leakage in a hydraulic press, as per this utility model, when the output shaft of the hydraulic press needs to be replaced, the upper sealing ring 1 can be opened along the upper cut-out 31, and the lower sealing ring 2 can be opened along the lower cut-out 35 to wrap around the output shaft of the hydraulic press. Then, according to... Figure 1As shown, the two upper arc-shaped protrusions 32 are inserted into the lower arc-shaped notch 37, and the two lower arc-shaped protrusions 36 are inserted into the upper arc-shaped notch 33. At this time, the upper sealing ring 1 and the lower sealing ring 2 are mated together, and they are locked together by the action of the upper arc-shaped protrusions 32 and the lower arc-shaped notch 37, as well as the lower arc-shaped protrusions 36 and the upper arc-shaped notch 33. When the upper sealing ring 1 and the lower sealing ring 2 are mated together by the above-mentioned fit, the friction and pressure generated by the contact surface between the semi-cylindrical protrusions and the arc-shaped notches will generate a circumferential force. This force makes the two upper arc-shaped protrusions 32 and the lower arc-shaped protrusions 36 tightly squeezed, so that the upper sealing ring 1 and the lower sealing ring 2 will not easily open during use, ensuring the sealing effect of the upper sealing ring 1 and the lower sealing ring 2 in the hydraulic system and preventing the upper disconnection 31 and the lower disconnection 35 from opening during use.
[0031] When the upper sealing ring 1 and the lower sealing ring 2 are fitted together, the upper hemispherical block 34 and the lower hemispherical groove 38 mate with each other, forming multiple tight contact points. Through this design, each upper hemispherical block 34 can be precisely embedded in its corresponding lower hemispherical groove 38, ensuring a stable connection at every position of the upper sealing ring 1 and the lower sealing ring 2. The advantage of this design is that the mating of multiple upper hemispherical blocks 34 with the lower hemispherical groove 38 enhances the contact pressure of the sealing rings throughout the entire circumference, providing uniform sealing force and preventing liquid leakage or loosening of the seal.
[0032] Then, the elastic band 42 is pulled to lock the upper sealing ring 1 and the lower sealing ring 2 in a ring-like manner. The positioning rod 45 is inserted into the positioning groove 44, positioning the elastic band 42. In this way, a tightening force can be applied inward, making the contact between the upper part 31 and the lower part 35 of the upper sealing ring 1 and the lower sealing ring 2 tighter, thereby enhancing the circumferential sealing pressure of the sealing ring. Specifically, the tensioning effect of the elastic band 42 makes the sealing effect between the upper sealing ring 1 and the lower sealing ring 2 more stable, preventing the sealing ring from loosening or leaking due to external force or internal pressure. At the same time, the positioning rod 45 ensures the stability of the elastic band 42 during use, making the installation of the sealing ring more secure and durable, improving the sealing effect of the hydraulic system and preventing leakage.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rubber seal ring for preventing leakage of a hydraulic press, characterized by: Including upper sealing ring (1) and lower sealing ring (2), the upper sealing ring (1) and lower sealing ring (2) are provided with butt joint mechanism (3), the butt joint mechanism (3) includes: Upper break opening (31), the upper break opening (31) is arranged on the upper sealing ring (1), the bottom of the upper sealing ring (1) is symmetrically provided with two upper arc protrusions (32), the bottom of the upper sealing ring (1) is provided with upper arc type notch (33), the bottom of the upper sealing ring (1) is provided with upper hemisphere block (34); Lower break opening (35), the lower break opening (35) is arranged on the lower sealing ring (2), the top of the lower sealing ring (2) is symmetrically provided with two lower arc protrusions (36), the top of the lower sealing ring (2) is provided with lower arc type notch (37), the top of the lower sealing ring (2) is provided with lower hemisphere recess (38); The upper sealing ring (1), lower sealing ring (2) are provided with reinforcing mechanism (4), the reinforcing mechanism (4) is used for sealing ring (1), lower sealing ring (2) through an inward fastening force.
2. The rubber seal ring for hydraulic machine according to claim 1, characterized in that: The upper hemisphere block (34) is provided with a plurality of, the upper hemisphere block (34) circumferential array is in the bottom of the upper sealing ring (1), the lower hemisphere recess (38) is provided with a plurality of, the lower hemisphere recess (38) circumferential array is in the top of the lower sealing ring (2).
3. The rubber seal ring for hydraulic press according to claim 1, characterized in that: The reinforcing mechanism (4) includes ring type groove (41), the ring type groove (41) is arranged on the outer wall of the upper sealing ring (1), lower sealing ring (2), the ring type groove (41) is provided with elastic band (42) in, the elastic band (42) is provided with semicircular cylindrical joint (43) on, the semicircular cylindrical joint (43) is provided with a plurality of positioning groove (44) on; The reinforcing mechanism (4) further includes positioning rod (45), the positioning rod (45) is used for the plug connection of positioning groove (44), the positioning rod (45) is provided with positioning strip (46), the positioning strip (46) is clamped on the upper sealing ring (1), lower sealing ring (2).
4. The rubber sealing ring for preventing leakage of a hydraulic machine according to claim 1, characterized in that: The lower hemisphere recess (38) is arc slot, and its shape is accurately matched with the upper hemisphere block (34).
5. The rubber seal ring for hydraulic machine according to claim 3, characterized in that: The elastic band (42) is made of high-temperature-resistant, oil-resistant rubber material, and the semicircular cylindrical joint (43) is a detachable structure.
6. The rubber sealing ring for hydraulic machine leakage prevention according to claim 1, characterized in that: The abutting surface between the upper hemisphere block (34) and the lower hemisphere recess (38) is coated with an anticorrosion coating to prolong its service life and reduce wear during long-term use.
7. The rubber sealing ring for hydraulic machine according to claim 1, characterized in that: The upper sealing ring (1) and the lower sealing ring (2) are provided with a plurality of annular reinforcing ribs, which are used to further enhance the pressure bearing capacity of the sealing ring during operation.