Guide sleeve assembly, guide slag blocking mechanism and oil cylinder
The guide sleeve assembly with a nested copper sleeve and adjustable seals addresses the high maintenance and adaptability issues of existing guide sleeves by reducing surface hardness requirements and enabling adjustable seal compression, thereby extending service life and lowering maintenance costs.
Patent Information
- Application Number
- CN202421112020.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Existing guide sleeves for grouting pumps have high maintenance costs and poor adaptability due to high requirements on the hardness of the guided part, leading to oil leakage and short service life.
A guide sleeve assembly with a nested copper sleeve and annular bottom block, featuring a cloth seal and adjustable components to reduce surface hardness requirements and extend service life through adjustable seals.
The solution provides low-cost maintenance by allowing adjustment of seal compression through replaceable sleeves or adjustment rings, enhancing sealing effectiveness and reducing wear on the guided part, thus extending the service life of the guide sleeve and reducing maintenance frequency.
Smart Images
Figure CN222254508U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing guides, in particular to a guide sleeve component, a guide slag blocking mechanism and an oil cylinder. Background Art
[0002] As an essential supporting equipment for shield construction, the grouting pump can effectively prevent the settlement of the ground surface. As an important hydraulic actuator of the grouting pump, the hydraulic cylinder realizes the circulation and blocking of the slurry by controlling the opening and closing of the cut valve. Because the end of the cylinder needs to extend into the cavity of the grouting pump, a guide sleeve needs to be designed to improve the stability of the cylinder rod, strengthen the blocking effect on the slurry, and avoid wear of the cylinder seal. However, the working conditions of the cylinder are relatively harsh, and the cylinder rod is often infected by mortar. The traditional guide sleeve can only play a certain role in the stability of the cylinder, but the solidified mortar in the cavity of the grouting pump will damage the piston rod of the cylinder, causing oil leakage in the cylinder.
[0003] In recent years, the development of oil cylinder guide sleeves is mostly integral, such as a oil cylinder guide sleeve disclosed in the patent application with application number CN202220899237.8, such as Figure 1 As shown, the guide sleeve 100 adopts an integrated design, has a longer axial dimension, and has multiple built-in seals, which can improve the stability of the guide sleeve. However, if the guide sleeve is worn, the replacement cost is high, and the replacement cost after the guide sleeve is damaged cannot be solved. For example, a guide sleeve and a cylinder disclosed in the patent application with application number CN202321858004.4, such as Figure 2 As shown, the guide sleeve adopts a split structure, including a sleeve 200, a scraper block 300, a copper sleeve 400, and a bottom block 500. The scraper block 200 is set at the end of the sleeve 200. Although the problem of guide sleeve replacement cost is solved and long-term operation can effectively avoid mortar intrusion, the scraper structure has high requirements for the surface hardness treatment of the piston rod. If the hardness of the piston rod does not meet the standard, it is easy to cause the coating to peel off, damage the seal, and cause oil leakage in the cylinder, and the applicability is poor. At the same time, if a conventional O-ring and retaining ring combined sealing form is used, the applicability to grouting conditions is poor, the seal wears quickly, the service life is short, and leakage occurs after long-term use, and the maintenance cost of replacing the cylinder rod in the later stage increases.
[0004] Therefore, it is necessary to design a cylinder slag blocking guide sleeve that is suitable for mortar conditions, has low maintenance cost and strong applicability.
[0005] It should be particularly noted that the above technical information is only intended to deepen the understanding of the overall background technology of the present utility model, and should not be regarded as admitting or implying in any form that the above technical information constitutes the prior art already known to those skilled in the art. Utility Model Content
[0006] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a guide sleeve assembly, a guide slag blocking mechanism and an oil cylinder, which solve the technical problems that the sealing structure of the existing guide sleeve has high requirements on the hardness of the guided part and poor adaptability.
[0007] The technical solution of this application is:
[0008] A guide sleeve assembly includes a sleeve and a copper sleeve nested in the sleeve, and an annular bottom block and an annular closing portion are respectively provided at both ends of the sleeve for axially limiting the copper sleeve, and a cloth seal is provided between the closing portion and the copper sleeve. This technical solution adopts a sleeve as an external protective component and a freedom constraint component, and the bottom block and the closing portion axially position the copper sleeve located in the sleeve, and then guide the guided part passing through the copper sleeve. The outer surface of the guided part passing through the copper sleeve is slidably sealed by the cloth seal, which achieves the slag blocking effect while achieving the guidance, and reduces the surface hardness requirement of the guided part. With the extension of the use time, when the cloth seal is worn, the compression amount of the cloth seal can be changed by replacing the sleeve or copper sleeve or bottom block of different lengths, thereby achieving low-cost maintenance and extending the service life of the entire guide sleeve assembly.
[0009] On the basis of the above technical solution, as a preferred embodiment of the guide sleeve assembly, an adjustment ring is provided between the bottom block and the copper sleeve. The provision of the adjustment ring further improves the convenience of maintenance. When the cloth seal is worn, the compression amount of the cloth seal can be changed by replacing adjustment rings of different thicknesses or increasing the number of adjustment rings without replacing other larger parts.
[0010] On the basis of the above technical solution, as a preferred embodiment of the guide sleeve assembly, the bottom block is a boss-shaped structure, the small diameter section of the bottom block is plug-fitted with the sleeve, and the step surface of the bottom block corresponds to the end of the sleeve. Through the assembly of the bottom block and the sleeve, not only the reliability of axial positioning and the convenience of assembly are further guaranteed, but also the inner ring surface of the bottom block is prevented from wearing the outer peripheral surface of the guided member.
[0011] On the basis of the above technical solution, as a preferred embodiment of the guide sleeve assembly, a first seal is provided between the outer wall of the copper sleeve and the inner wall of the sleeve, and an annular second seal is provided on the inner wall. The first seal constitutes the outer ring surface seal of the copper sleeve, and the second seal constitutes the inner ring surface seal of the copper sleeve, which further improves the sealing effect and prevents foreign matter from entering the axial sliding mating surface between the copper sleeve and the guided part. In addition, the sliding sealing effect can be further improved by adding lubricating oil, while reducing the friction between the copper sleeve and the guided part.
[0012] On the basis of the above technical solution, as a preferred embodiment of the guide sleeve assembly, the sleeve and the copper sleeve are provided with lubricating oil holes that are interconnected and lead to the inner wall of the copper sleeve, the lubricating oil hole interface between the sleeve and the copper sleeve is located on the side of the first seal close to the cloth seal, and the lubricating oil hole outlet at the inner wall of the copper sleeve is located on the side of the second seal close to the cloth seal. That is, in the axial direction of the sleeve, two seals are provided on both sides of the lubricating oil hole, one is the cloth seal, and the other is the second seal, which can prevent contaminants from entering the lubricating oil hole from the inner ring surface of the copper sleeve, and at the same time, when the guided part is the cylinder piston rod, the end pressure of the cylinder is prevented from leaking through the lubricating oil hole. In the radial direction of the copper sleeve, two seals are provided, one is the second seal, and the other is the first seal, which prevent contaminants from entering the lubricating oil hole from the outer ring surface of the copper sleeve, and at the same time, it can further prevent the end pressure of the cylinder from leaking through the lubricating oil hole.
[0013] On the basis of the above technical solution, as a preferred implementation of the guide sleeve assembly, the cloth seal is at least one of a V-shaped cloth seal, a U-shaped cloth seal, a Y-shaped cloth seal, a YX-shaped cloth seal, and a lip-shaped cloth seal.
[0014] On the basis of the above technical solution, as a preferred implementation of the guide sleeve assembly, the first seal and the second seal are at least one of a V-type seal, a U-type seal, a Y-type seal, a YX-type seal, a lip seal, and an O-ring retaining ring seal.
[0015] On the basis of the above technical solution, as a preferred implementation of the guide sleeve assembly, an observation block for observing the movement direction and sliding sealing state of the guided member is provided on the side of the bottom block away from the sleeve.
[0016] A guiding slag-blocking mechanism comprises a guiding sleeve assembly as described in any one of the above technical solutions, wherein the guiding sleeve assembly is used to be sleeved on the outside of a guided member and to be axially slidably sealed with the guided member.
[0017] A hydraulic cylinder comprises a cylinder barrel and a piston rod which are plug-fitted together, and comprises the guide sleeve assembly described in any of the above technical solutions, wherein the cylinder barrel is connected to the sleeve, and the piston rod is plug-fitted with the copper sleeve, the adjusting ring, and the bottom block, and is slidingly sealed with the copper sleeve, the cloth-inserted seal, and the second seal.
[0018] Compared with the prior art, the guide sleeve assembly provided by the utility model adopts a guide structure design with a cloth-seal, which can not only improve the mortar sealing effect, but also avoid the requirement for the surface hardness of the guided part; at the same time, on the basis of stabilizing the guided part, the guide sleeve assembly adopts an adjustable split design, which extends the service life of the seal by adjusting the compression amount of the seal, and reduces the wear on the guided part. That is, by replacing sleeves or copper sleeves or adjustment rings or bottom blocks of different sizes, or by changing the number of adjustment rings, the compression amount of the cloth-seal can be changed, thereby extending the service life of the guide sleeve seal and the oil cylinder piston rod, reducing the maintenance frequency of the oil cylinder, and saving replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a cross-sectional view of a guide sleeve in the prior art;
[0021] Figure 2 A cross-sectional view of another guide sleeve in the prior art;
[0022] Figure 3 A cross-sectional view of a guide sleeve assembly provided by the utility model;
[0023] Figure 4 A cross-sectional view of another guide sleeve assembly provided by the utility model;
[0024] Description of Figure Numbers:
[0025] 100. Guide sleeve; 200. Sleeve 2; 300. Slag scraper; 400. Copper sleeve 2; 500. Bottom block 2;
[0026] 1. Sleeve; 2. Cloth seal; 3. Copper sleeve; 4. Adjusting ring; 5. Bottom block; 6. First seal; 7. Second seal; 8. Lubricating oil hole; 9. Observation block. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the core concept of the utility model and the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.
[0029] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "several" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like indicate positions or positional relationships only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0030] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.
[0031] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
[0032] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.
[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0034] A guide sleeve assembly, such as Figure 4 As shown, it includes a sleeve 1 and a copper sleeve 3 embedded in the sleeve 1, and both ends of the sleeve 1 are respectively provided with an annular bottom block 5 and an annular closing portion for axially limiting the copper sleeve 3, and a cloth-inserted seal 2 is provided between the closing portion and the copper sleeve 3.
[0035] This embodiment uses the sleeve 1 as an external protective component and a freedom constraint component. The bottom block 5 and the closing portion axially position the copper sleeve 3 located in the sleeve 1, and then guide the guided part passing through the copper sleeve 3. The outer surface of the guided part passing through the copper sleeve 3 is slidably sealed by the cloth seal 2, which not only achieves the guidance but also achieves the slag blocking effect, and reduces the surface hardness requirements for the guided part. With the extension of the use time, when the cloth seal 2 is worn, the compression amount of the cloth seal 2 can be changed by replacing the sleeve 1 or the copper sleeve 3 or the bottom block 5 of different lengths, thereby achieving low-cost maintenance and extending the service life of the entire guide sleeve assembly.
[0036] Based on the above embodiment, as a preferred implementation of the guide sleeve assembly, Figure 3 As shown, an adjusting ring 4 is provided between the bottom block 5 and the copper sleeve 3. The provision of the adjusting ring 4 further improves the convenience of maintenance. When the cloth-inserted seal 2 is worn, the compression amount of the cloth-inserted seal 2 can be changed by replacing the adjusting ring 4 with different thicknesses or increasing the number of adjusting rings 4 without replacing other larger parts.
[0037] Based on the above embodiment, as a preferred implementation of the guide sleeve assembly, Figure 3 and Figure 4 As shown, the bottom block 5 is a boss-shaped structure, the small diameter section of the bottom block 5 is plug-fitted with the sleeve 1, and the step surface of the bottom block 5 corresponds to the end of the sleeve 1. Through the assembly of the bottom block 5 and the sleeve 1, not only the reliability of axial positioning and the convenience of assembly are further guaranteed, but also the inner ring surface of the bottom block 5 is prevented from wearing the outer peripheral surface of the guided part.
[0038] Based on the above embodiment, as a preferred implementation of the guide sleeve assembly, Figure 3 and Figure 4 As shown, a first sealing member 6 is arranged between the outer wall of the copper sleeve 3 and the inner wall of the sleeve 1 , and an annular second sealing member 7 is arranged on the inner wall.
[0039] The first seal 6 forms the outer ring surface seal of the copper sleeve 3, and the second seal 7 forms the inner ring surface seal of the copper sleeve 3, which further improves the sealing effect and prevents foreign matter from entering the axial sliding fitting surface between the copper sleeve 3 and the guided member. In addition, the sliding sealing effect can be further improved by adding lubricating oil, while reducing the friction between the copper sleeve 3 and the guided member.
[0040] Based on the above embodiment, as a preferred implementation of the guide sleeve assembly, Figure 3 and Figure 4 As shown, the sleeve 1 and the copper sleeve 3 are provided with a lubricating oil hole 8 which are interconnected and lead to the inner wall of the copper sleeve 3; the lubricating oil hole interface between the sleeve 1 and the copper sleeve 3 is located on the side of the first seal 6 close to the cloth seal 2; and the lubricating oil hole outlet at the inner wall of the copper sleeve 3 is located on the side of the second seal 7 close to the cloth seal 2.
[0041] That is, in the axial direction of the sleeve 1, two seals are arranged on both sides of the lubricating oil hole 8, one is the cloth-inserted seal 2, and the other is the second seal 7, which can prevent pollutants from entering the lubricating oil hole 8 from the inner ring surface of the copper sleeve 3, and when the guided member is the cylinder piston rod, the end pressure of the cylinder is prevented from leaking through the lubricating oil hole 8. In the radial direction of the copper sleeve 3, two seals are arranged, one is the second seal 7, and the other is the first seal 6, which prevent pollutants from entering the lubricating oil hole 8 from the outer ring surface of the copper sleeve 3, and can further prevent the end pressure of the cylinder from leaking through the lubricating oil hole 8.
[0042] On the basis of the above embodiment, as a preferred implementation of the guide sleeve assembly, the cloth seal 2 is at least one of a V-shaped cloth seal, a U-shaped cloth seal, a Y-shaped cloth seal, a YX-shaped cloth seal, and a lip-shaped cloth seal. The V-shaped cloth seal, the U-shaped cloth seal, the Y-shaped cloth seal, the YX-shaped cloth seal, and the lip-shaped cloth seal can be either a single seal or a combined seal.
[0043] Based on the above embodiment, as a preferred implementation of the guide sleeve assembly, the first seal 6 and the second seal 7 are at least one of a V-shaped seal, a U-shaped seal, a Y-shaped seal, a YX-shaped seal, a lip seal, and an O-shaped ring seal. The V-shaped seal, the U-shaped seal, the Y-shaped seal, the YX-shaped seal, the lip seal, and the O-shaped ring seal can be either a single seal or a combined seal.
[0044] Based on the above embodiment, as a preferred implementation of the guide sleeve assembly, Figure 3 and Figure 4As shown, the side of the bottom block 5 facing away from the sleeve 1 is provided with an observation block 9 for observing the movement direction of the guided member and the sliding sealing state.
[0045] A guiding slag-blocking mechanism comprises the guide sleeve assembly described in any one of the above embodiments, wherein the guide sleeve assembly is used to be sleeved on the outside of a guided member and to be axially slidably sealed with the guided member.
[0046] A hydraulic cylinder comprises a plug-in cylinder barrel and a piston rod, and comprises the guide sleeve assembly described in any one of the above embodiments, wherein the cylinder barrel is connected to the sleeve 1, and the piston rod is plug-in-fitted with the copper sleeve 3, the adjustment ring 4, and the bottom block 5, and is slidingly sealed with the copper sleeve 3, the cloth seal 2, and the second seal 7.
[0047] As a preferred embodiment of the guiding and slag-blocking mechanism, it is used for guiding and blocking the piston rod of the grouting pump cylinder. In order to solve the problems existing in the existing guide sleeve, reduce the wear of the cylinder seal and reduce the subsequent maintenance costs, the following technical scheme is adopted: taking the left extension direction of the cylinder as the top and the right side as the bottom, a sleeve, a cloth-clamped V-shaped combined seal, a copper sleeve, an adjustment ring and a bottom block are installed in sequence from top to bottom along the axial direction of the cylinder.
[0048] The cloth-reinforced V-type combined seal is fixed by a sleeve and a copper sleeve. An adjustment ring is installed at the bottom of the sleeve. The bottom of the adjustment ring is connected to the bottom block. The bottom block adopts a boss design. When the entire guide sleeve is embedded in the grouting pump body, the oil cylinder fixes the entire oil cylinder on the grouting pump through a threaded tie rod, and the annular plane of the bottom block contacts the bottom surface of the sleeve. The thickness of the adjustment ring determines the compression amount of the cloth-reinforced V-type combined seal. Since the cloth-reinforced V-type combined seal adopts multiple groups of V-type seals, the sealing effect is proportional to the compression amount. By increasing the number or thickness of the adjustment rings, the compression amount of the cloth-reinforced V-type combined seal can be increased, the sealing effect can be further improved, and the frequency of seal replacement can be reduced. If the cloth-reinforced V-type combined seal leaks, the sealing effect can be restored by increasing the number of adjustment rings, reducing the frequency of seal replacement.
[0049] The cloth-reinforced V-type combined seal, copper sleeve, and adjustment ring are limited in axial movement by the sleeve and bottom block. When the cloth-reinforced V-type combined seal is worn, the sealing performance can be improved by adjusting the thickness of the adjustment ring. Since the cloth-reinforced V-type combined seal is made of rubber and textile materials, it can reduce the wear on the piston rod. At the same time, the multi-layer cloth-reinforced sealing form is more wear-resistant than the conventional O-ring retaining ring combined seal, and has a better sealing effect under mortar environmental conditions, which increases the overall service life of the guide sleeve and the cylinder. The cloth-reinforced V-type combined seal and the O-ring retaining ring combined seal are suitable for dynamic sealing under the reciprocating motion of the piston rod.
[0050] Specific as Figure 3As shown, it is mainly composed of a sleeve 1, a cloth-reinforced V-shaped combined seal, a copper sleeve 3, an adjusting ring 4, a bottom block 5, an O-ring 1, an O-ring retaining ring combined seal, a grease hole 8, and an observation block 9. With the left side of the oil cylinder as the top and the right side as the bottom, the sleeve 1, the cloth-reinforced V-shaped combined seal, the copper sleeve 3, the adjusting ring 4, and the bottom block 5 are installed in sequence from top to bottom along the axial direction of the oil cylinder.
[0051] The cloth-inserted V-shaped combined seal is fixed by a sleeve 1 and a copper sleeve 3. An adjusting ring 4 is installed at the bottom of the sleeve 1. The bottom of the adjusting ring 4 cooperates with the bottom block 5. The bottom block 5 adopts a boss design. When the entire guide sleeve is embedded in the pump body, the annular plane of the bottom block 5 contacts the bottom surface of the sleeve 1. The thickness of the adjusting ring 4 determines the compression amount of the cloth-inserted V-shaped combined seal. By increasing the number or thickness of the adjusting rings 4, the compression amount of the cloth-inserted V-shaped combined seal can be increased. Since the cloth-inserted V-shaped combined seal adopts multiple groups of V-shaped seals, the sealing effect is proportional to the compression amount.
[0052] The cloth-inserted V-type combined seal, copper sleeve 3, and adjusting ring 4 are limited in axial movement by sleeve 1 and bottom block 5. When the cloth-inserted V-type combined seal is worn, the sealing performance can be improved by adjusting the thickness of the adjusting ring 4. Since the cloth-inserted V-type combined seal is made of rubber and textile materials, it can reduce the wear on the piston rod and increase the overall service life of the guide sleeve and the oil cylinder.
[0053] The cloth-reinforced V-shaped combined seal and the O-ring retaining ring combined seal are suitable for dynamic sealing under the reciprocating motion of the piston rod, and the O-ring seal is suitable for static sealing. The cloth-reinforced V-shaped combined seal, the O-ring retaining ring combined seal, and the O-ring ensure that all parts have good clearance seals, ensure that the lubricating oil is effectively isolated from the outside world, and achieve full lubrication of the cylinder rod. Observation block 9 is used to observe the movement direction of the cylinder piston rod and the sealing effect.
[0054] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.
[0055] The above content shows and describes the basic principle, main features and beneficial effects of the utility model. The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A guide sleeve assembly, comprising a sleeve (1) and a copper sleeve (3) embedded in the sleeve (1), characterized in that: An annular bottom block (5) and an annular closing portion for axially limiting the copper sleeve (3) are respectively provided at both ends of the sleeve (1), and a cloth-inserted sealing member (2) is provided between the closing portion and the copper sleeve (3).
2. The guide sleeve assembly according to claim 1, characterized in that: An adjustment ring (4) is provided between the bottom block (5) and the copper sleeve (3).
3. The guide sleeve assembly according to claim 2, characterized in that: The bottom block (5) is a boss-shaped structure; the small-diameter section of the bottom block (5) is plug-fitted into the sleeve (1); and the step surface of the bottom block (5) corresponds to the end of the sleeve (1).
4. The guide sleeve assembly according to any one of claims 1 to 3, characterized in that: A first sealing member (6) is provided between the outer wall of the copper sleeve (3) and the inner wall of the sleeve (1), and an annular second sealing member (7) is provided on the inner wall.
5. The guide sleeve assembly according to claim 4, characterized in that: The sleeve (1) and the copper sleeve (3) are provided with lubricating oil holes (8) which are interconnected and lead to the inner wall of the copper sleeve (3); the lubricating oil hole interface between the sleeve (1) and the copper sleeve (3) is located on a side of the first sealing member (6) close to the cloth-inserted sealing member (2); and the lubricating oil hole outlet on the inner wall of the copper sleeve (3) is located on a side of the second sealing member (7) close to the cloth-inserted sealing member (2).
6. The guide sleeve assembly according to any one of claims 1 to 3 and 5, characterized in that: The cloth-clamped seal (2) is at least one of a V-shaped cloth-clamped seal, a U-shaped cloth-clamped seal, a Y-shaped cloth-clamped seal, a YX-shaped cloth-clamped seal, and a lip-shaped cloth-clamped seal.
7. The guide sleeve assembly according to claim 4, characterized in that: The first sealing member (6) and the second sealing member (7) are at least one of a V-shaped seal, a U-shaped seal, a Y-shaped seal, a YX-shaped seal, a lip seal, and an O-ring retaining ring seal.
8. The guide sleeve assembly according to any one of claims 1-3, 5 and 7, characterized in that: An observation block (9) for observing the movement direction and sliding sealing state of the guided member is provided on the side of the bottom block (5) facing away from the sleeve (1).
9. A guiding slag blocking mechanism, characterized in that: The guide sleeve assembly comprises the guide sleeve assembly according to any one of claims 1 to 8, wherein the guide sleeve assembly is used for being sleeved on the outside of a guided member and being axially slidably sealed with the guided member.
10. An oil cylinder, comprising a cylinder barrel and a piston rod that are plug-fitted together, characterized in that: The invention comprises a guide sleeve assembly as claimed in any one of claims 1 to 8, wherein the cylinder is connected to the sleeve (1), the piston rod is plug-fitted with the copper sleeve (3), the adjustment ring (4) and the bottom block (5) and is slidably sealed with the copper sleeve (3), the cloth seal (2) and the second seal (7).