Quick-mounting seal assembly for hydraulic cylinder and method of assembly

Abstract

The application discloses a quick-assembly type hydraulic oil cylinder sealing assembly and an assembling method, and has the structure including an oil inlet and outlet, a hydraulic cylinder, a quick-assembly ring, a sealing element, a piston, a piston rod, a support group, a wrapping group, a connecting head, a mounting groove and an adaptive groove; the oil inlet and outlet and the hydraulic cylinder are integrated; the quick-assembly ring is fixed to the outer surface of the hydraulic cylinder; the sealing element is movably sleeved on the outer surface of the piston rod; the connecting head is fixed to the piston rod through threads; the support frame includes a soft rubber layer, a soft corner, a support plate, a rubber airbag and a spring plate; the support plate is attached to the outer surface of the soft rubber layer; and the soft corner and the support plate are integrated. When the sealing element is disassembled, repaired and replaced, the support group can automatically extend and form a radial auxiliary support for the piston rod, effectively compensating for the structural limiting vacancy during disassembly and assembly, avoiding inclination and shaking of the piston rod due to excessive cantilever length under the action of gravity, preventing eccentric friction and abnormal wear of components, and improving the stability of the overall structure in the maintenance state.

Description

Technical Field

[0001] This invention belongs to the field of hydraulic actuators, and more specifically, relates to the sealing components and assembly method of quick-connect hydraulic cylinders. Background Technology

[0002] The sealing components of a hydraulic cylinder are key supporting structures. They are mainly assembled at the end of the cylinder where they mate with the piston rod. They are used to prevent hydraulic oil leakage, block the intrusion of external dust and impurities, and adapt to the reciprocating motion of the piston rod to ensure the continuous and stable operation of the hydraulic cylinder.

[0003] Existing hydraulic cylinder seals provide basic sealing and protection. During maintenance operations involving seal disassembly and replacement, the piston rod is prone to wear due to a lack of auxiliary support. The cylinder interior is directly connected to the outside air, which easily leads to temperature differences and condensation. Long-term use can cause problems such as seal aging, oil deterioration, and internal wall corrosion. Summary of the Invention

[0004] To address the aforementioned technical problems, the sealing assembly and assembly method of the quick-installation hydraulic cylinder of this invention achieve their objectives and effects through the following specific technical means:

[0005] Its structure includes an oil inlet / outlet, a hydraulic cylinder, a quick-release ring, a seal, a piston, a piston rod, a support assembly, a wrapping assembly, a connector, a mounting groove, and an adapter groove. The oil inlet / outlet and the hydraulic cylinder are an integrated structure. The quick-release ring is fixed to the outer ring surface of the hydraulic cylinder. The seal is sleeved on the outer ring surface of the piston rod and is movable. The connector is fixed to the piston rod by threads. The piston supports the piston rod and moves inside the hydraulic cylinder. The support assembly is installed inside the hydraulic cylinder through the mounting groove. The wrapping assembly is installed inside the hydraulic cylinder through the adapter groove.

[0006] The package assembly includes a support frame and a rubber layer, wherein the rubber layer is connected between two support frames;

[0007] The support frame includes a soft rubber layer, soft corners, a support plate, a rubber airbag, and a spring plate. The support plate is attached to the outer surface of the soft rubber layer. The soft corners and the support plate are an integrated structure. The spring plate supports the surface of the support plate. The rubber airbag and the soft rubber layer are an integrated structure. The entire wrapping assembly is arranged around the adapter groove and can form an elastic fit with the outer periphery of the piston rod.

[0008] As a further improvement of the present invention, the support assembly includes a fixed block, a fixed rod, a movable block, an inclined plane, a spring, and a movable groove. The fixed block and the fixed rod are an integrated structure. The spring is connected between the fixed rod and the movable block. The movable block and the movable groove are an integrated structure. The inclined plane and the movable block are an integral part. The movable block can slide linearly along the fixed rod to realize the telescopic storage action.

[0009] As a further improvement of the present invention, the connector and the piston rod are detachable, the mounting groove, the adapter groove and the hydraulic cylinder are an integrated structure, and the connector is used for external components to realize the power connection of the piston rod.

[0010] As a further improvement of the present invention, the support plate and the spring plate are made of elastic steel plate, the soft corner is located at the bend of the support plate to assist its swing, the support plate and the spring plate have a V-shaped structure, the soft rubber layer is made of rubber, and the support plate has a V-shaped structure, which can swing smoothly when subjected to force.

[0011] As a further improvement of the present invention, the inclined surface of the bevel angle assists in the smooth pushing of the seal, and the fixing block is fixed to the hydraulic cylinder through the mounting groove. The bevel angle can reduce the pushing resistance during the assembly of the seal and improve the smoothness of disassembly and assembly.

[0012] As a further improvement of the present invention, the quick-release ring includes a limiting block, a rotating ring, a limiting body, a pressure plate, an adhesive strip, and a groove. The limiting block and the pressure plate are an integral structure. The rotating ring is connected to the pressure plate by threads. The limiting body and the pressure plate are an integral structure. The adhesive strip is attached to the surface of the pressure plate. The groove is located between the pressure plate and the hydraulic cylinder. The quick-release ring is integrally fitted onto the outer side of the end of the hydraulic cylinder, forming an external locking and limiting structure.

[0013] As a further improvement of the present invention, the sealing element includes a sleeve, a rubber ring, an elastic layer, an extension plate, and a main shell. The sleeve and the main shell are an integral structure. The rubber ring is sleeved on the outer surface of the main shell. The extension plate and the main shell are an integral structure. The elastic layer is attached to the surface of the extension plate. The inner diameter of the sleeve matches the outer diameter of the piston rod to ensure coaxial sliding sealing.

[0014] As a further improvement of the present invention, the inner ring surface of the pressure plate is inclined from low to high in the direction from the limiting block to the limiting body, the limiting body restricts the movement range of the rotating ring, and the inclined surface of the pressure plate can form a pressing surface to help lock the seal.

[0015] As a further improvement of the present invention, the outer ring surface of the extension plate is inclined from low to high to match the pressure plate, the extension plate can be moved into the groove to match and connect with the pressure plate, the elastic layer and the rubber strip increase the friction, and the inclined structure of the extension plate can form a conical surface fit with the pressure plate to improve the clamping and sealing performance.

[0016] As a further improvement of the present invention, the sealing assembly of the quick-connect hydraulic cylinder is assembled as follows:

[0017] S1: Align the sleeve of the seal with the outside of the piston rod inside the hydraulic cylinder to complete the alignment, and push the seal smoothly along the axial direction;

[0018] S2: During the continuous movement of the seal, the main shell first contacts and presses against the wrapping assembly, forcing the support plate to squeeze the elastic plate to elastically contract and stack, so that the entire wrapping assembly shrinks and is stored inside the adapter groove. During the same process, the rubber layer is stretched and produces elastic deformation, and the auxiliary support frame is smoothly retracted and reset, maintaining flexible contact with the outer wall of the seal throughout the process.

[0019] S3: The seal continues to move axially deeper, the outer peripheral structure squeezes the inclined angle of the support group, and with the help of the inclined guide force, the movable block is pushed to slide along the fixed rod, and the spring is compressed at the same time to generate elastic storage force, so that the entire support group is completely stored and hidden inside the installation groove.

[0020] S4: When the seal is continuously pushed to the preset station, the extension plate on the outside of the seal is precisely embedded in the groove between the pressure plate and the hydraulic cylinder, so that the elastic layer on the surface of the extension plate is tightly attached to the rubber strip on the inside of the pressure plate. The pre-installation anti-loosening is achieved by relying on frictional resistance, and the pre-installation positioning of the seal is completed.

[0021] S5: After pre-assembly, apply external rotational force to drive the rotating ring to rotate. The rotating ring moves axially along the pressure plate by relying on the threaded transmission. The inclined inner wall of the pressure plate is used to radially press and lock the extension plate. The limit body restricts the extreme rotation stroke of the rotating ring to prevent excessive locking from causing permanent deformation of the components. Finally, the rapid assembly and fixing of the entire sealing assembly is completed.

[0022] The coordinated action of each component during the assembly of the seal ensures assembly accuracy and prevents component wear.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] Firstly, when the seals are disassembled, repaired, or replaced, the support assembly can automatically extend and provide radial auxiliary support to the piston rod, effectively compensating for the structural limitation gaps during disassembly and assembly, preventing the piston rod from tilting and swaying due to excessive cantilever length and gravity, preventing eccentric friction and abnormal component wear, and improving the overall structural stability during maintenance.

[0025] Secondly, during the outward movement of the seal, the wrapping assembly adaptively unfolds and continuously adheres to block the flow of cold air between the internal cavity of the hydraulic cylinder and the outside, reducing the risk of condensation caused by the temperature difference between the inside and outside, and preventing water vapor from being sealed and retained by the seal after it is generated, thus effectively preventing problems such as oil emulsification, seal corrosion and cylinder rust.

[0026] Thirdly, the sealing components can be quickly aligned and assembled by axial translation. The elastic layer and the rubber strip adhere to each other to increase contact friction and achieve pre-installation to prevent loosening. Then, the rotating ring and pressure plate are used to press and lock the components. The assembly process is simple and efficient, and the locking is firm. This can effectively prevent the sealing components from loosening or shifting after long-term use and ensure long-term sealing performance.

[0027] Fourth, the quick-release ring and the groove form an embedded limiting structure, which can constrain the extension plate in both circumferential and radial directions, further improving the consistency of seal installation, reducing assembly gap deviation, and lowering the risk of leakage when the cylinder is working. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the sealing assembly of the quick-installation hydraulic cylinder of the present invention.

[0029] Figure 2 This is a schematic cross-sectional view of the sealing assembly of the quick-installation hydraulic cylinder of the present invention.

[0030] Figure 3 This is a partial cross-sectional structural diagram of the sealing assembly of the quick-installation hydraulic cylinder of the present invention.

[0031] Figure 4 This is a schematic diagram of the structure of the packaging assembly of the present invention.

[0032] Figure 5 This is a schematic diagram of the outer structure of the packaging assembly of the present invention.

[0033] Figure 6 This is a schematic diagram of the cross-sectional structure of the packaging assembly of the present invention.

[0034] Figure 7 This is a schematic diagram of the support assembly of the present invention.

[0035] Figure 8 This is a schematic diagram of the cross-sectional structure of the support assembly of the present invention.

[0036] Figure 9 This is a schematic diagram of the quick-release ring of the present invention.

[0037] Figure 10 This is a schematic diagram of the cross-sectional structure of the quick-release ring of the present invention.

[0038] Figure 11 This is a schematic diagram of the structure of the sealing element of the present invention.

[0039] Figure 12 This is a schematic diagram of the cross-sectional structure of the sealing element of the present invention.

[0040] In the diagram: Oil inlet / outlet - 1, Hydraulic cylinder - 2, Quick-release ring - 3, Seal - 4, Piston - 5, Piston rod - 6, Support assembly - 7, Wrapping assembly - 8, Connector - 9, Mounting groove - 10, Adaptor groove - 11, Support frame - 81, Rubber layer - 82, Soft rubber layer - 21, Soft angle - 22, Support plate - 23, Rubber airbag - 24, Spring plate - 25, Fixing block - 31, Fixing rod - 32, Movable block - 33, Angled angle - 34, Spring - 35, Movable groove - 36, Limiting block - 51, Rotating ring - 52, Limiting body - 53, Pressure plate - 54, Rubber strip - 55, Groove - 56, Sleeve opening - 61, Rubber ring - 62, Elastic layer - 63, Extension plate - 64, Main shell - 65. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings:

[0042] Example 1:

[0043] As attached Figure 1 To be continued Figure 8 As shown:

[0044] This invention provides a sealing assembly and assembly method for a quick-release hydraulic cylinder. Its structure includes an inlet / outlet port 1, a hydraulic cylinder 2, a quick-release ring 3, a seal 4, a piston 5, a piston rod 6, a support assembly 7, a wrapping assembly 8, a connector 9, a mounting groove 10, and an adapter groove 11. The inlet / outlet port 1 and the hydraulic cylinder 2 are integrated. The quick-release ring 3 is fixed to the outer surface of the hydraulic cylinder 2. The seal 4 is sleeved on the outer surface of the piston rod 6 and is movable. The connector 9 is threadedly fixed to the piston rod 6. The piston 5 supports the piston rod 6, allowing it to move within the hydraulic cylinder 2. The support assembly 7 is installed inside the hydraulic cylinder 2 via the mounting groove 10, and the wrapping assembly 8 is installed inside the hydraulic cylinder 2 via the adapter groove 11.

[0045] The package assembly 8 includes a support frame 81 and a rubber layer 82, wherein the rubber layer 82 is connected between two support frames 81;

[0046] The support frame 81 includes a soft rubber layer 21, soft corners 22, a support plate 23, a rubber airbag 24, and a spring plate 25. The support plate 23 is attached to the outer surface of the soft rubber layer 21. The soft corners 22 and the support plate 23 are an integral structure. The spring plate 25 supports the surface of the support plate 23. The rubber airbag 24 and the soft rubber layer 21 are an integral structure. The wrapping assembly 8 is arranged around the adapter groove 11 and can elastically fit with the outer periphery of the piston rod 6. The rubber airbag 24 has an air bladder inside, which can continuously compress and resist the object it contacts.

[0047] The support assembly 7 includes a fixed block 31, a fixed rod 32, a movable block 33, an inclined plane 34, a spring 35, and a movable groove 36. The fixed block 31 and the fixed rod 32 are an integral structure. The spring 35 connects the fixed rod 32 and the movable block 33. The movable block 33 and the movable groove 36 are an integral structure. The inclined plane 34 is an integral part of the movable block 33. The movable block 33 can slide linearly along the fixed rod 32 to achieve telescopic storage. The spring 35 provides elastic restoring force for the movable block 33 to ensure the cyclic use of the limiting structure.

[0048] The connector 9 and piston rod 6 are detachable. The mounting groove 10, adapter groove 11 and hydraulic cylinder 2 are integrated. The connector 9 is used to connect external components to realize the power connection of piston rod 6. The mounting groove 10 and adapter groove 11 are arranged in sections to adapt to the independent installation of support group 7 and wrapping group 8 respectively.

[0049] The support plate 23 and the spring plate 25 are made of elastic steel plate. The soft corner 22 is located at the bend of the support plate 23 to assist its swing. The support plate 23 and the spring plate 25 have a V-shaped structure. The soft rubber layer 21 is made of rubber. The support plate 23 has a V-shaped structure, which can swing smoothly when subjected to force. The soft rubber layer 21 is attached to the surface of the support plate 23 to prevent rigid collision damage to the hard structure.

[0050] The inclined surface of the inclined surface 34 assists in the smooth insertion of the sealing element 4, and the fixing block 31 is fixed to the hydraulic cylinder 2 through the mounting groove 10. The inclined surface 34 can reduce the pushing resistance of the sealing element 4 during assembly and improve the smoothness of disassembly and assembly. The fixing block 31 provides a stable base point for the support group 7 to prevent loosening and displacement during operation.

[0051] The specific usage and function of this embodiment are as follows:

[0052] In this invention, when the sealing element 4 needs to be disassembled and the sealing strip replaced, the connector 9 is first unscrewed from the end of the piston rod 6. The rotating ring 52 is rotated in the forward direction to release the threaded locking force, loosening the clamping limit relationship between the pressure plate 54 and the extension plate 64. Then, the sealing element 4 can be smoothly moved outward axially along the outside of the piston rod 6. During the continuous outward movement of the sealing element 4, the support group 7 inside the mounting groove 10 is gradually released from the squeezing constraint. The movable block 33 slides outward along the fixed rod 32 with the elastic thrust of the spring 35, so that the movable block 33 is stably supported against the surface of the piston rod 6, realizing the auxiliary support limit in the disassembly and assembly state. As the sealing element 4 continues to move outward, the wrapping group 8 stored inside the adapter groove 11 is simultaneously released from the squeezing constraint. Relying on the elastic support force of the spring plate 25 and the support plate 23, it gradually unfolds outward and always maintains a tight fit with the outer wall of the continuously moving sealing element 4. At the same time, the rubber layer 82 follows the unfolding deformation of the support frame 81 and unfolds synchronously. The expansion and contraction mechanism effectively isolates the internal cavity of the hydraulic cylinder 2 from the external environment, preventing a large amount of cold air from rushing into the cylinder after the seal 4 is disassembled and opened. This prevents condensation caused by the temperature difference between the inside and outside. After the seal 4 is completely removed from the hydraulic cylinder 2, the support plate 23 stably supports the soft rubber layer 21 and the rubber airbag 24, which are tightly pressed against the outer surface of the piston rod 6, forming a long-lasting double-layer air isolation barrier. At the same time, the extended and positioned support group 7 provides radial auxiliary support and limit fixation for the piston rod 6, effectively preventing the piston rod 6 from tilting, shaking, and wearing due to the suspended force after the seal 4 is removed. Relying on the continuous air isolation protection of the wrapping group 8, the system can completely block the intrusion of humid and cold air from the outside into the hydraulic cylinder 2, inhibiting the generation of condensation from the temperature difference at the source. This prevents the water vapor generated during maintenance and disassembly from being sealed and retained in the cylinder after the seal 4 is reassembled, thus avoiding the problems of water vapor emulsification, internal wall corrosion, and accelerated aging and damage of the seal.

[0053] Example 2:

[0054] As attached Figure 9 To be continued Figure 12 As shown:

[0055] The quick-release ring 3 includes a limiting block 51, a rotating ring 52, a limiting body 53, a pressure plate 54, an adhesive strip 55, and a groove 56. The limiting block 51 and the pressure plate 54 are an integral structure. The rotating ring 52 is connected to the pressure plate 54 by threads. The limiting body 53 and the pressure plate 54 are an integral structure. The adhesive strip 55 is attached to the surface of the pressure plate 54. The groove 56 is located between the pressure plate 54 and the hydraulic cylinder 2. The quick-release ring 3 is integrally fitted onto the outer side of the end of the hydraulic cylinder 2, forming an external locking and limiting structure. The groove 56 provides space for assembly and mating, facilitating the embedding and positioning of the edge structure of the sealing element 4.

[0056] The sealing element 4 includes a sleeve 61, a rubber ring 62, an elastic layer 63, an extension plate 64, and a main shell 65. The sleeve 61 and the main shell 65 are an integral structure. The rubber ring 62 is sleeved on the outer surface of the main shell 65. The extension plate 64 and the main shell 65 are an integral structure. The elastic layer 63 is attached to the surface of the extension plate 64. The inner diameter of the sleeve 61 matches the outer diameter of the piston rod 6 to ensure coaxial sliding sealing. The rubber ring 62 surrounds the main shell 65 to prevent oil leakage and the intrusion of external impurities.

[0057] The inner surface of the pressure plate 54 is inclined from low to high in the direction from the limiting block 51 to the limiting body 53. The limiting body 53 restricts the movement range of the rotating ring 52. The inclined surface of the pressure plate 54 can form a pressing surface to help lock the seal 4. The limiting body 53 plays a role in limiting the stroke to prevent the rotating ring 52 from over-tightening.

[0058] The outer surface of the extension plate 64 is inclined from low to high to match the pressure plate 54. The extension plate 64 can be moved into the groove 56 and matched with the pressure plate 54. The elastic layer 63 increases the friction between itself and the rubber strip 55. The inclined structure of the extension plate 64 can form a conical surface fit with the pressure plate 54 to improve the clamping and sealing performance. The elastic layer 63 has elastic deformation capability, which can compensate for assembly gaps and strengthen the fixing effect.

[0059] The sealing assembly of the quick-connect hydraulic cylinder is assembled as follows:

[0060] S1: Align the sleeve 61 of the seal 4 with the outside of the piston rod 6 inside the hydraulic cylinder 2 to complete the alignment, and push the seal 4 smoothly along the axial direction;

[0061] S2: During the continuous movement of the seal 4, the main shell 65 first contacts and presses against the wrapping assembly 8, forcing the support plate 23 to squeeze the elastic plate 25 to elastically contract and stack, so that the entire wrapping assembly 8 shrinks and is stored inside the adapter groove 11. During the same process, the rubber layer 82 is stretched and undergoes elastic deformation, and the auxiliary support frame 81 smoothly retracts and resets, maintaining flexible contact with the outer wall of the seal 4 throughout the process.

[0062] S3: The seal 4 continues to move axially deeper, and the outer peripheral structure squeezes the inclined angle 34 of the support group 7. With the help of the inclined guide force, the movable block 33 is pushed to slide along the fixed rod 32, and the spring 35 is compressed at the same time to generate elastic storage force, so that the entire support group 7 is completely stored and hidden inside the mounting groove 10.

[0063] S4: When the seal 4 is continuously pushed to the preset station, the extension plate 64 on the outside of the seal 4 is precisely embedded in the groove 56 between the pressure plate 54 and the hydraulic cylinder 2, so that the elastic layer 63 on the surface of the extension plate 64 is tightly attached to the rubber strip 55 on the inside of the pressure plate 54, and the pre-installation anti-loosening is achieved by relying on frictional resistance, thus completing the pre-installation positioning of the seal 4.

[0064] S5: After pre-assembly, apply external rotational force to drive the rotating ring 52 to rotate. The rotating ring 52 moves axially along the pressure plate 54 by means of threaded transmission. The inclined inner wall of the pressure plate 54 is used to radially press and lock the extension plate 64. The limit rotation stroke of the rotating ring 52 is limited by the limit body 53 to prevent excessive locking from causing permanent deformation of the component. Finally, the rapid assembly and fixing of the entire sealing assembly is completed.

[0065] During the assembly of the sealing element 4, the components work together to ensure assembly accuracy and avoid component wear. After the sealing element 4 is assembled, the sealing element 4, quick-release ring 3, and hydraulic cylinder 2 form a multi-seal structure, which effectively prevents oil leakage and external impurities from entering.

[0066] The specific usage and function of this embodiment are as follows:

[0067] In this invention, when the seal 4 needs to be assembled, the seal 4 is smoothly moved into the hydraulic cylinder 2 along the outer side of the piston rod 6. As the seal 4 continues to move inward and contacts the compression package 8, the flexible transition structure of the soft angle 22 guides and limits its movement, causing the package 8 to shrink and neatly stack inside the fitting groove 11. At the same time, the inclined angle 34 acts as a guide and transition, assisting the main shell 65 to smoothly press the movable block 33, forcing the movable block 33 to overcome the elastic compression spring 35, and causing the movable block 33 to completely shrink and be stored inside the mounting groove 10. During the process of the seal 4 being fed into place, the extension plate 64 is simultaneously embedded into the pressure plate 54 and... The groove 56 formed between the hydraulic cylinders 2 allows the elastic layer 63 and the rubber strip 55 to fit tightly together. The frictional resistance of the contact surface enables pre-installation and limit, improving assembly stability. When the seal 4 moves to the preset installation position, the external force drives the rotating ring 52 to rotate along the threaded structure on the surface of the pressure plate 54, achieving a clamping and locking fit between the pressure plate 54 and the extension plate 64. This ensures that the seal 4 is stably limited and quickly assembled and fixed at the end position of the hydraulic cylinder 2. After the assembly and locking are completed, the connector 9 is screwed onto the end of the piston rod 6 to complete the locking and fixing, thus ensuring the integrity of the overall hydraulic cylinder structure assembly and its use under normal working conditions.

[0068] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A sealing assembly for a quick-release hydraulic cylinder, comprising an inlet / outlet port (1), a hydraulic cylinder (2), a quick-release ring (3), a seal (4), a piston (5), a piston rod (6), a support assembly (7), a wrapping assembly (8), a connector (9), a mounting groove (10), and an adapter groove (11). The inlet / outlet port (1) and the hydraulic cylinder (2) are integrated. The quick-release ring (3) is fixed to the outer ring surface of the hydraulic cylinder (2). The seal (4) is fitted onto the outer ring surface of the piston rod (6) and is movable. The connector (9) is threaded to the piston rod (6). The piston (5) supports the piston rod (6) to move inside the hydraulic cylinder (2). The support assembly (7) is installed inside the hydraulic cylinder (2) through the mounting groove (10). The wrapping assembly (8) is installed inside the hydraulic cylinder (2) through the adapter groove (11). The assembly is characterized by: The package assembly (8) includes a support frame (81) and a rubber layer (82), wherein the rubber layer (82) is connected between two support frames (81); The support frame (81) includes a soft rubber layer (21), a soft corner (22), a support plate (23), a rubber airbag (24), and a spring plate (25). The support plate (23) is attached to the outer surface of the soft rubber layer (21). The soft corner (22) and the support plate (23) are an integrated structure. The spring plate (25) is supported on the surface of the support plate (23). The rubber airbag (24) and the soft rubber layer (21) are an integrated structure.

2. The sealing assembly of the quick-installation hydraulic cylinder according to claim 1, characterized in that: The support assembly (7) includes a fixed block (31), a fixed rod (32), a movable block (33), an inclined plane (34), a spring (35), and a movable groove (36). The fixed block (31) and the fixed rod (32) are an integrated structure. The spring (35) is connected between the fixed rod (32) and the movable block (33). The movable block (33) and the movable groove (36) are an integrated structure. The inclined plane (34) and the movable block (33) are an integrated structure.

3. The sealing assembly of the quick-installation hydraulic cylinder according to claim 1, characterized in that: The connector (9) and piston rod (6) are detachable, and the mounting groove (10), adapter groove (11) and hydraulic cylinder (2) are an integrated structure.

4. The sealing assembly of the quick-installation hydraulic cylinder according to claim 1, characterized in that: The support plate (23) and the spring plate (25) are made of elastic steel plate. The soft corner (22) is located at the bend of the support plate (23) to assist its swing. The support plate (23) and the spring plate (25) have a V-shaped structure. The soft rubber layer (21) is made of rubber.

5. The sealing assembly of the quick-installation hydraulic cylinder according to claim 2, characterized in that: The inclined surface auxiliary seal (4) of the inclined angle (34) is smoothly pushed in, and the fixing block (31) is fixed to the hydraulic cylinder (2) through the mounting groove (10).

6. The sealing assembly of the quick-installation hydraulic cylinder according to claim 1, characterized in that: The quick-release ring (3) includes a limiting block (51), a rotating ring (52), a limiting body (53), a pressure plate (54), an adhesive strip (55), and a groove (56). The limiting block (51) and the pressure plate (54) are an integrated structure. The rotating ring (52) is connected to the pressure plate (54) by a thread. The limiting body (53) and the pressure plate (54) are an integrated structure. The adhesive strip (55) is attached to the surface of the pressure plate (54). The groove (56) is located between the pressure plate (54) and the hydraulic cylinder (2).

7. The sealing assembly of the quick-installation hydraulic cylinder according to claim 1, characterized in that: The sealing element (4) includes a sleeve (61), a rubber ring (62), an elastic layer (63), an extension plate (64), and a main shell (65). The sleeve (61) and the main shell (65) are an integral structure. The rubber ring (62) is sleeved on the outer surface of the main shell (65). The extension plate (64) and the main shell (65) are an integral structure. The elastic layer (63) is attached to the surface of the extension plate (64).

8. The sealing assembly of the quick-installation hydraulic cylinder according to claim 6, characterized in that: The pressure plate (54) is inclined from low to high in the direction from the limiting block (51) to the limiting body (53), and the limiting body (53) restricts the movement range of the rotating ring (52).

9. The sealing assembly of the quick-installation hydraulic cylinder according to claim 7, characterized in that: The outer surface of the extension plate (64) is inclined from low to high to match the pressure plate (54). The extension plate (64) can be moved into the groove (56) to match and connect with the pressure plate (54). The elastic layer (63) and the rubber strip (55) increase the friction.

10. A method for assembling the sealing components of a quick-installation hydraulic cylinder, characterized in that: The sealing assembly of the quick-connect hydraulic cylinder using any one of claims 1-9 is assembled as follows: S1: Align the sleeve (61) of the seal (4) with the outside of the piston rod (6) inside the hydraulic cylinder (2) to complete the alignment, and push the seal (4) smoothly along the axial direction. S2: During the continuous movement of the seal (4), the main shell (65) first contacts and presses against the wrapping assembly (8), forcing the support plate (23) to squeeze the elastic plate (25) to elastically shrink and stack, so that the entire wrapping assembly (8) shrinks and is stored inside the adapter groove (11). During the synchronous process, the rubber layer (82) is stretched and undergoes elastic deformation, and the auxiliary support frame (81) is smoothly retracted and reset, maintaining flexible contact with the outer wall of the seal (4) throughout the process. S3: The seal (4) continues to move axially deeper, and the outer peripheral structure squeezes the inclined angle (34) of the support group (7). With the help of the inclined guide force, the movable block (33) slides along the fixed rod (32) and synchronously compresses the spring (35) to generate elastic storage force, so that the entire support group (7) is completely stored and hidden inside the mounting groove (10). S4: When the seal (4) is continuously pushed to the preset station, the extension plate (64) on the outside of the seal (4) is precisely embedded in the groove (56) between the pressure plate (54) and the hydraulic cylinder (2), so that the elastic layer (63) on the surface of the extension plate (64) and the rubber strip (55) on the inside of the pressure plate (54) are tightly attached, and the pre-installation anti-loosening is achieved by relying on frictional resistance, thus completing the pre-installation positioning of the seal (4); S5: After pre-assembly, apply external rotational force to drive the rotating ring (52) to rotate. The rotating ring (52) moves axially along the pressure plate (54) by relying on the threaded transmission. The pressure plate (54) uses its inclined inner wall to radially press and lock the extension plate (64). The limit rotation stroke of the rotating ring (52) is limited by the limit body (53) to prevent excessive locking from causing permanent deformation of the components. Finally, the rapid assembly and fixing of the entire sealing assembly is completed.

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