Rapid installation guide device for oil seal sealing element

By using oil seal components to quickly install the guide device, and utilizing components such as positioning screws, sealing rings, and guide wheels, the problem of easy wear and leakage in the hydraulic cylinder sealing structure during piston rod movement is solved, achieving good sealing effect and extending service life.

CN121497700APending Publication Date: 2026-02-10CHANGZHOU FANOK SEALING TECH CO LTD
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Patent Information

Application Number
CN202511881217.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

The existing hydraulic cylinder sealing structure is prone to wear during the reciprocating motion of the piston rod, leading to oil leakage. Threaded connections are also prone to leakage, resulting in poor sealing performance.

Method used

The quick-installation guide device using oil seals includes an installation mechanism, a sealing mechanism, a guiding mechanism, and a lubrication mechanism. Through the cooperation of components such as positioning screws, sealing rings, and guide wheels, the piston rod is stably guided and sealed.

Benefits of technology

This improved the sealing effect of the piston rod, reduced wear, ensured the sealing performance and service life of the hydraulic cylinder, and prevented leakage problems.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention relates to the technical field of oil seal sealing elements, and discloses an oil seal sealing element rapid installation guide device which comprises an oil cylinder body, a piston plate is slidably installed in an inner cavity of the oil cylinder body, a piston rod is fixedly installed on the side wall of the piston plate, and a dustproof cover is installed on the right end face of the oil cylinder body in an attached mode. A guide seat is fixedly mounted on the inner side wall of the dustproof cover, and the mounting mechanism is arranged on the outer side wall of the oil cylinder body; the sealing mechanism is arranged on the outer side wall of the guide seat; the guide mechanism is arranged in an inner cavity of the dustproof cover; and the lubricating mechanism is arranged on the outer side wall of the dustproof cover. Through the arrangement of the mounting mechanism, the dustproof cover and the guide seat can be quickly fixed on the oil cylinder body, the convenience of the whole sealing element is effectively improved, meanwhile, the guide mechanism and the lubricating mechanism are arranged, the deviation rate of the piston rod in the movement process can be reduced, and the service life of the whole sealing element is guaranteed.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil seal, in particular to a kind of oil seal quick installation guiding device. BACKGROUND

[0002] At present, hydraulic cylinder mostly adopts the following several guide sleeve structure forms: threaded guide sleeve, threaded gland, ordinary key, the front end of cylinder barrel and piston rod are provided with guide sleeve, mainly used for sealing and supporting piston rod, and sealing and fixed between cylinder barrel, fixed mode requires reliable, easy to process and assemble.

[0003] But the sealing assembly on the existing guide structure and piston rod are static friction, piston rod in the process of reciprocating, due to slight deviation, leading to the wear of sealing assembly, thereby causing oil leakage, have certain improved space, while the existing cylinder seal interval generally adopts the way of threaded connection, easy to cause the leakage of cylinder at threaded portion, and the sealing effect is poor, so we propose a kind of oil seal quick installation guiding device to solve the above problems. SUMMARY

[0004] The present application aims to provide a kind of oil seal quick installation guiding device to solve the problems raised in the above background.

[0005] To achieve the above object, the present application provides the following technical scheme: a kind of oil seal quick installation guiding device, including oil cylinder body, the inner cavity of the oil cylinder body is slidably installed with piston plate, the side wall of the piston plate is fixedly installed with piston rod, the right end surface of the oil cylinder body is installed with dust cover, the inner side wall of the dust cover is fixedly installed with guide seat, further comprising: Installation mechanism, the installation mechanism is arranged on the outer side wall of oil cylinder body, and the installation mechanism is used to lock and fix dust cover; Sealing mechanism, the sealing mechanism is arranged on the outer side wall of guide seat, and the sealing mechanism is used to seal guide seat; Guiding mechanism, the guiding mechanism is arranged in the inner cavity of dust cover, and the guiding mechanism is used to guide the extension and contraction of piston rod; Lubricating mechanism, the lubricating mechanism is arranged on the outer side wall of dust cover, and the lubricating mechanism is used to improve the extension and contraction lubrication degree of piston rod.

[0006] Preferably, the installation mechanism includes positioning gear ring rotatably installed on the outer side wall of oil cylinder body, and positioning plate fixedly installed on the oil cylinder body, the inner cavity of the positioning plate is rotatably installed with positioning lead screw, the outer side wall left end of the positioning lead screw is fixedly installed with transmission gear, the left end surface of the positioning lead screw is fixedly installed with handle, and the side wall of the handle is provided with anti-slip texture.

[0007] Preferably, the outer side wall of the positioning screw rod is provided with a right side thread mounted with an extension seat, the extension seat is fixedly installed on the outer side wall of the dust cover, and the right end face of the positioning screw rod is detachably installed with a plug.

[0008] Preferably, the sealing mechanism comprises a groove installed on the outer side wall of the guide seat, and a sealing rubber ring installed in the inner cavity of the groove, the outer side wall of the guide seat is provided with a receiving groove in communication with the groove, the inner cavity of the receiving groove is slidably installed with a sliding plate, the outer side wall of the sliding plate is fixedly installed with a top rod, and the inner cavity of the receiving groove is fixedly installed with a receiving spring.

[0009] Preferably, one end of the receiving spring away from the inner cavity bottom of the receiving groove is fixedly connected with the sliding plate, the top rod slides in the inner cavity of the receiving groove, the end of the top rod away from the sliding plate is provided with a circular arc surface, and the top rod abuts against the side wall of the sealing rubber ring.

[0010] Preferably, the outer side wall of the piston plate is clamped with a first oil seal, and the inner side wall of the guide seat is clamped with a second oil seal.

[0011] Preferably, the guide mechanism comprises a positioning screw rod fixedly installed on the outer side of the right end face of the dust cover, and a positioning sleeve rotatably installed on the outer side of the inner cavity of the dust cover, the right end face of the positioning sleeve is fixedly installed with a first bevel gear, the inner cavity of the dust cover is rotatably installed with a second bevel gear on the side close to the first bevel gear, the inner cavity of the second bevel gear is screwedly installed with a connecting sleeve, the inner cavity of the connecting sleeve is slidably installed with a connecting rod, and the end of the connecting rod away from the connecting sleeve is fixedly installed with a guide box.

[0012] Preferably, the first bevel gear is meshingly connected with the second bevel gear, the thread lifting of the positioning screw rod is greater than the equivalent friction angle of the positioning sleeve, the inner side wall of the dust cover is provided with a sliding groove, the guide box slides in the inner cavity of the sliding groove, the inner cavity bottom of the connecting sleeve is fixedly installed with a connecting spring, the other end of the connecting spring is fixedly connected with the connecting rod, and the inner side wall of the dust cover is provided with a deep hole in sliding connection with the positioning screw rod.

[0013] Preferably, the lubricating mechanism comprises a guide wheel rotatably installed in the lower part of the inner cavity of the guide box, and a liquid storage cavity arranged in the inner cavity of the guide box, the inner cavity of the liquid storage cavity is fixedly installed with a water-absorbing cotton tube, and the outlet of the water-absorbing cotton tube is in close contact with the side wall of the guide wheel.

[0014] Preferably, the outer side wall of the dust cover is fixedly installed with a valve seat, the valve seat is in communication with the liquid storage cavity through a liquid inlet pipe, and the material of the liquid inlet pipe is PVC hose.

[0015] Compared with the prior art, the present application has the following advantages: 1、The invention, when installing and fixing the dust cover and the guide seat, the handle can be rotated to rotate the positioning screw rod, all the positioning screw rods are rotated under the cooperation of the positioning gear ring and the transmission gear, the extension seat drives the dust cover to be attached to the oil cylinder body, the oil cylinder body is kept sealed, when the guide seat enters the inner cavity of the oil cylinder body, the sliding plate is extruded by the elastic force of the storage spring, the top rod moves to the outside of the inner cavity of the storage groove, the sealing rubber ring is extruded outward by the top rod, the sealing rubber ring is firmly attached to the inner wall of the oil cylinder body, the sealing between the guide seat and the oil cylinder body is ensured, the first oil seal is arranged to ensure the sealing between the piston plate and the oil cylinder body, the second oil seal is arranged to further improve the sealing effect between the guide seat and the first oil seal, and the whole sealing element can be used well.

[0016] 2、The invention, when the dust cover is close to the oil cylinder body, the positioning screw rod can extend into the deep hole inner cavity on the inner wall of the dust cover, the first bevel gear is rotated by the connecting sleeve, the connecting sleeve slides to the lower part of the inner cavity of the second bevel gear, the connecting rod drives the guide box to move to the lower part of the inner cavity of the sliding groove, the guide wheel in the lower part of the inner cavity of the guide box can abut against the surface of the piston rod, the connecting rod is extruded downward by the connecting sleeve inner cavity connecting spring, the guide wheel can be firmly abutted against the side wall of the piston rod, when the piston rod extends, the piston rod is well guided, the wear of the piston rod in the movement process is reduced, and the service life of the whole sealing element is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view overall structure schematic view of the quick installation guide device for the oil seal sealing element. Figure 2 It is a local split structure schematic view of the quick installation guide device for the oil seal sealing element. Figure 3 It is a guide seat cross-sectional structure schematic view of the quick installation guide device for the oil seal sealing element. Figure 4 It is an oil cylinder local cross-sectional structure schematic view of the quick installation guide device for the oil seal sealing element. Figure 5 It is a Figure 4 It is an A area enlarged structure schematic view of the quick installation guide device for the oil seal sealing element. Figure 6 It is a connecting sleeve cross-sectional structure schematic view of the quick installation guide device for the oil seal sealing element. Figure 7It is a cross-sectional structure schematic view of a guide box of a quick installation guide device for an oil seal sealing element.

[0018] In the figure: 1, oil cylinder body; 21, first oil seal; 2, piston plate; 3, piston rod; 4, dust cover; 41, sliding groove; 42, deep hole; 5, guide seat; 51, groove; 52, storage groove; 53, second oil seal; 6, installation mechanism; 61, positioning gear ring; 62, positioning plate; 63, positioning screw; 64, transmission gear; 65, handle; 66, extension seat; 67, plug; 7, sealing mechanism; 71, sealing rubber ring; 72, sliding plate; 73, jacking rod; 74, storage spring; 8, guide mechanism; 81, positioning screw; 82, positioning sleeve; 83, first bevel gear; 84, second bevel gear; 85, connecting sleeve; 851, connecting spring; 86, connecting rod; 87, guide box; 871, liquid storage cavity; 9, lubricating mechanism; 91, guide wheel; 92, water absorption cotton tube; 93, valve seat; 94, liquid inlet pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-7 The present application provides a technical scheme of a quick installation guide device for an oil seal sealing element: a quick installation guide device for an oil seal sealing element, comprising an oil cylinder body 1, a piston plate 2 is slidably installed in the inner cavity of the oil cylinder body 1, a piston rod 3 is fixedly installed on the side wall of the piston plate 2, a dust cover 4 is attached to the right end face of the oil cylinder body 1, a guide seat 5 is fixedly installed on the inner side wall of the dust cover 4, and the quick installation guide device further comprises: An installation mechanism 6 is arranged on the outer side wall of the oil cylinder body 1, and the installation mechanism 6 is used to lock and fix the dust cover 4; A sealing mechanism 7 is arranged on the outer side wall of the guide seat 5, and the sealing mechanism 7 is used to seal the guide seat 5; A guide mechanism 8 is arranged in the inner cavity of the dust cover 4, and the guide mechanism 8 is used to guide the extension and retraction of the piston rod 3; A lubricating mechanism 9 is arranged on the outer side wall of the dust cover 4, and the lubricating mechanism 9 is used to improve the extension and retraction lubricity of the piston rod 3.

[0021] Furthermore, the installation mechanism 6 includes a positioning gear ring 61 rotatably mounted on the outer wall of the cylinder body 1, and a positioning plate 62 fixedly mounted on the cylinder body 1. A positioning screw 63 is rotatably mounted in the inner cavity of the positioning plate 62. A transmission gear 64 is fixedly mounted on the left end of the outer wall of the positioning screw 63. A handle 65 is fixedly mounted on the left end face of the positioning screw 63. Anti-slip texture is provided on the side wall of the handle 65. An extension seat 66 is threaded on the right side of the outer wall of the positioning screw 63. The extension seat 66 is fixedly installed on the outer wall of the dust cover 4. A plug 67 is detachably installed on the right end face of the positioning screw 63.

[0022] It should be noted that when installing and fixing the dust cover 4 and guide seat 5, the extension seat 66 and the positioning screw 63 should be aligned. Then, the positioning screw 63 can be rotated by rotating the handle 65. The transmission gear 64 is fixedly installed on the side wall of the positioning screw 63. At this time, under the action of the positioning gear ring 61, all the transmission gears 64 rotate. With the rotation of the positioning screw 63, the extension seat 66 can drive the dust cover 4 to fit against the cylinder body 1, so that the cylinder body 1 is sealed. Then, the sealing head 67 can be installed on the side wall of the positioning screw 63 to prevent the sealing head 67 from slipping off the positioning screw 63 when performing simple maintenance on the guide seat 5 of the cylinder body 1.

[0023] Furthermore, the sealing mechanism 7 includes a groove 51 installed on the outer wall of the guide seat 5, and a sealing ring 71 engaged in the inner cavity of the groove 51. The outer wall of the guide seat 5 is provided with a receiving groove 52 that communicates with the groove 51. A sliding plate 72 is slidably installed in the inner cavity of the receiving groove 52. A top rod 73 is fixedly installed on the outer wall of the sliding plate 72. A receiving spring 74 is fixedly installed on the bottom surface of the inner cavity of the receiving groove 52. The end of the storage spring 74 away from the bottom surface of the inner cavity of the storage groove 52 is fixedly connected to the sliding plate 72. The push rod 73 slides in the inner cavity of the storage groove 52. The end of the push rod 73 away from the sliding plate 72 is set as an arc surface. The push rod 73 abuts against the side wall of the sealing ring 71. A first oil seal 21 is engaged and installed on the outer side wall of the piston plate 2, and a second oil seal 53 is engaged and installed on the inner side wall of the guide seat 5.

[0024] It should be noted that when the guide seat 5 enters the inner cavity of the cylinder body 1, the sliding plate 72 can be squeezed by the receiving groove 52 provided on the outer wall of the guide seat 5 under the elastic force of the receiving spring 74, causing the push rod 73 to move outward from the inner cavity of the receiving groove 52. At this time, the push rod 73 can squeeze the sealing ring 71 outward, so that the sealing ring 71 is firmly attached to the inner wall of the cylinder body 1, ensuring the seal between the guide seat 5 and the cylinder body 1. The setting of the first oil seal 21 can ensure the seal between the piston plate 2 and the cylinder body 1. The setting of the second oil seal 53 can further improve the sealing effect between the guide seat 5 and the first oil seal 21.

[0025] Furthermore, the guiding mechanism 8 includes a positioning screw 81 fixedly installed on the outer side of the right end face of the dust cover 4, and a positioning sleeve 82 rotatably installed on the outer side of the inner cavity of the dust cover 4. A first bevel gear 83 is fixedly installed on the right end face of the positioning sleeve 82. A second bevel gear 84 is rotatably installed on the side of the inner cavity of the dust cover 4 near the first bevel gear 83. A connecting sleeve 85 is threadedly installed in the inner cavity of the second bevel gear 84. A connecting rod 86 is slidably installed in the inner cavity of the connecting sleeve 85. The end of the connecting rod 86 away from the connecting sleeve 85 is fixedly installed... A guide box 87 is fixedly installed; the first bevel gear 83 and the second bevel gear 84 are meshed and connected; the thread lifting of the positioning screw 81 is greater than the equivalent friction angle of the positioning sleeve 82; a sliding groove 41 is opened on the inner side wall of the dust cover 4; the guide box 87 slides in the inner cavity of the sliding groove 41; a connecting spring 851 is fixedly installed on the bottom surface of the inner cavity of the connecting sleeve 85; the other end of the connecting spring 851 is fixedly connected to the connecting rod 86; a deep hole 42 is opened on the inner side wall of the dust cover 4 to slide and connect with the positioning screw 81. The lubrication mechanism 9 includes a guide wheel 91 rotatably mounted in the lower part of the inner cavity of the guide box 87, and a liquid storage chamber 871 disposed in the inner cavity of the guide box 87. A water-absorbing cotton tube 92 is fixedly installed in the inner cavity of the liquid storage chamber 871, and the outlet of the water-absorbing cotton tube 92 is in contact with the side wall of the guide wheel 91. A valve seat 93 is fixedly installed on the outer wall of the dust cover 4. The valve seat 93 is connected to the liquid storage chamber 871 through the liquid inlet pipe 94. The liquid inlet pipe 94 is made of PVC hose.

[0026] It should be noted that as the dust cover 4 approaches the cylinder body 1, the positioning screw 81 can extend into the deep hole 42 on the inner wall of the dust cover 4. Since the thread rise and fall of the positioning screw 81 is greater than the equivalent friction angle of the positioning sleeve 82, as the positioning screw 81 continues to penetrate deeper into the deep hole 42, the connecting sleeve 85 can drive the first bevel gear 83 to rotate. Through the meshing of the first bevel gear 83 and the second bevel gear 84, the connecting sleeve 85 can slide towards the lower part of the inner cavity of the second bevel gear 84, thus connecting... Rod 86 drives guide box 87 to move to the lower part of the inner cavity of sliding groove 41. At this time, guide wheel 91 at the lower part of the inner cavity of guide box 87 can abut against the surface of piston rod 3. Through the setting of spring 851 in the inner cavity of connecting sleeve 85, connecting rod 86 can be pressed downward, so that guide wheel 91 can firmly abut against the side wall of piston rod 3. At this time, when piston rod 3 extends, it can provide a good guiding effect for piston rod 3, reduce the wear of piston rod 3 during movement, and ensure the service life of the entire seal.

[0027] Working principle: When installing and fixing the dust cover 4 and guide seat 5, the extension seat 66 needs to be aligned with the positioning screw 63. Then, the positioning screw 63 can be rotated by rotating the handle 65. The transmission gear 64 is fixedly installed on the side wall of the positioning screw 63. At this time, under the action of the positioning gear ring 61, all the transmission gears 64 rotate. With the rotation of the positioning screw 63, the extension seat 66 can drive the dust cover 4 to fit against the cylinder body 1, so that the cylinder body 1 is kept sealed. When the guide seat 5 enters the inner cavity of the cylinder body 1, the sliding plate 72 can be squeezed by the receiving groove 52 provided on the outer side wall of the guide seat 5 under the elastic force of the receiving spring 74, causing the push rod 73 to move to the outer side of the inner cavity of the receiving groove 52. At this time, the push rod 73 can squeeze the sealing ring 71 outward, so that the sealing ring 71 is firmly attached to the inner wall of the cylinder body 1, ensuring the seal between the guide seat 5 and the cylinder body 1. The setting of the first oil seal 21 can ensure the seal between the piston plate 2 and the cylinder body 1. The setting of the second oil seal 53 can further improve the sealing effect between the guide seat 5 and the first oil seal 21. As the dust cover 4 approaches the cylinder body 1, the positioning screw 81 can extend into the inner cavity of the deep hole 42 on the inner wall of the dust cover 4. Since the thread rise and fall of the positioning screw 81 is greater than the equivalent friction angle of the positioning sleeve 82, as the positioning screw 81 continues to penetrate deeper into the inner cavity of the deep hole 42, the connecting sleeve 85 can drive the first bevel gear 83 to rotate. Through the meshing connection of the first bevel gear 83 and the second bevel gear 84, the connecting sleeve 85 can slide towards the lower part of the inner cavity of the second bevel gear 84, causing the connecting rod 86 to drive the guide box 87 to move towards the lower part of the inner cavity of the sliding groove 41. At this time, the guide wheel 91 at the lower part of the inner cavity of the guide box 87 can... The connecting spring 851, which is connected to the inner cavity of the connecting sleeve 85, presses the connecting rod 86 downward, so that the guide wheel 91 can firmly press against the side wall of the piston rod 3. At this time, when the piston rod 3 extends, it can provide a good guiding effect for the piston rod 3, reduce the wear of the piston rod 3 during the movement, and ensure the service life of the entire seal. It should be noted that the figure only roughly shows the second bevel gear 84 and the connecting spring 851. The specific thickness of the second bevel gear 84 needs to be comprehensively matched according to the number of rotations of the first bevel gear 83 and the elasticity of the connecting spring 851. Workers can periodically add lubricating oil to the liquid storage chamber 871. Through the setting of the absorbent cotton tube 92, the lubricating oil in the liquid storage chamber 871 can be released to wet the absorbent cotton tube 92. The lubricating oil flowing out of the absorbent cotton tube 92 will be on the surface of the guide wheel 91. During the extension movement of the piston rod 3, when the friction between the guide wheel 91 and the piston rod 3 is too large, the piston rod 3 can drive the guide wheel 91 to rotate. At this time, the lubricating oil adhering to the guide wheel 91 can be coated on the surface of the piston rod 3 to reduce the friction coefficient between the guide wheel 91 and the piston rod 3, thereby improving the guiding function of the piston rod 3 and further ensuring the smooth and stable movement of the piston rod 3.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A quick-installation guide device for oil seals, comprising a cylinder body (1), wherein a piston plate (2) is slidably mounted in the inner cavity of the cylinder body (1), and a piston rod (3) is fixedly mounted on the side wall of the piston plate (2), characterized in that, A dust cover (4) is fitted to the right end face of the cylinder body (1), and a guide seat (5) is fixedly installed on the inner wall of the dust cover (4). The cylinder body also includes: The mounting mechanism (6) is located on the outer side wall of the cylinder body (1) and is used to lock and fix the dust cover (4). A sealing mechanism (7) is provided on the outer wall of the guide seat (5) and is used to seal the guide seat (5); A guiding mechanism (8) is provided in the inner cavity of the dust cover (4) and is used to guide the extension and retraction of the piston rod (3). The lubrication mechanism (9) is located on the outer wall of the dust cover (4) and is used to improve the extension and retraction lubrication of the piston rod (3).

2. The quick-installation guide device for oil seal components according to claim 1, characterized in that: The mounting mechanism (6) includes a positioning gear ring (61) rotatably mounted on the outer wall of the cylinder body (1) and a positioning plate (62) fixedly mounted on the cylinder body (1). A positioning screw (63) is rotatably mounted in the inner cavity of the positioning plate (62). A transmission gear (64) is fixedly mounted on the left end of the outer wall of the positioning screw (63). A handle (65) is fixedly mounted on the left end face of the positioning screw (63). Anti-slip texture is provided on the side wall of the handle (65).

3. The quick-installation guide device for oil seal components according to claim 2, characterized in that: An extension seat (66) is threaded on the right side of the outer wall of the positioning screw (63). The extension seat (66) is fixedly installed on the outer wall of the dust cover (4). A plug (67) is detachably installed on the right end face of the positioning screw (63).

4. The quick installation guide device for oil seal components according to claim 1, characterized in that: The sealing mechanism (7) includes a groove (51) installed on the outer wall of the guide seat (5) and a sealing ring (71) engaged in the inner cavity of the groove (51). The outer wall of the guide seat (5) is provided with a receiving groove (52) that communicates with the groove (51). A sliding plate (72) is slidably installed in the inner cavity of the receiving groove (52). A top rod (73) is fixedly installed on the outer wall of the sliding plate (72). A receiving spring (74) is fixedly installed on the bottom surface of the inner cavity of the receiving groove (52).

5. The quick-installation guide device for oil seal components according to claim 4, characterized in that: The end of the storage spring (74) away from the bottom surface of the inner cavity of the storage groove (52) is fixedly connected to the sliding plate (72). The push rod (73) slides in the inner cavity of the storage groove (52). The end of the push rod (73) away from the sliding plate (72) is set as an arc surface. The push rod (73) abuts against the side wall of the sealing ring (71).

6. The quick-installation guide device for oil seal components according to claim 1, characterized in that: A first oil seal (21) is engaged on the outer side wall of the piston plate (2), and a second oil seal (53) is engaged on the inner side wall of the guide seat (5).

7. The quick-installation guide device for oil seal components according to claim 1, characterized in that: The guiding mechanism (8) includes a positioning screw (81) fixedly installed on the outer side of the right end face of the dust cover (4), and a positioning sleeve (82) rotatably installed on the outer side of the inner cavity of the dust cover (4). A first bevel gear (83) is fixedly installed on the right end face of the positioning sleeve (82). A second bevel gear (84) is rotatably installed on the side of the inner cavity of the dust cover (4) close to the first bevel gear (83). A connecting sleeve (85) is threadedly installed in the inner cavity of the second bevel gear (84). A connecting rod (86) is slidably installed in the inner cavity of the connecting sleeve (85). A guide box (87) is fixedly installed at the end of the connecting rod (86) away from the connecting sleeve (85).

8. The quick-installation guide device for oil seal components according to claim 7, characterized in that: The first bevel gear (83) is meshed with the second bevel gear (84). The thread lifting of the positioning screw (81) is greater than the equivalent friction angle of the positioning sleeve (82). A sliding groove (41) is provided on the inner wall of the dust cover (4). The guide box (87) slides in the inner cavity of the sliding groove (41). A connecting spring (851) is fixedly installed on the bottom surface of the inner cavity of the connecting sleeve (85). The other end of the connecting spring (851) is fixedly connected to the connecting rod (86). A deep hole (42) is provided on the inner wall of the dust cover (4) and is slidably connected to the positioning screw (81).

9. A quick-installation guide device for oil seal components according to claim 8, characterized in that: The lubrication mechanism (9) includes a guide wheel (91) rotatably installed in the lower part of the inner cavity of the guide box (87) and a liquid storage chamber (871) provided in the inner cavity of the guide box (87). A water-absorbing cotton tube (92) is fixedly installed in the inner cavity of the liquid storage chamber (871), and the outlet of the water-absorbing cotton tube (92) is in contact with the side wall of the guide wheel (91).

10. A quick-installation guide device for oil seal components according to claim 9, characterized in that: A valve seat (93) is fixedly installed on the outer wall of the dust cover (4). The valve seat (93) is connected to the liquid storage chamber (871) through the liquid inlet pipe (94). The liquid inlet pipe (94) is made of PVC hose.