Detachable hydraulic cylinder oil pipe structure

By designing a detachable hydraulic cylinder oil pipe structure and utilizing components such as connectors and sealing seats to achieve convenient assembly and disassembly, the problem of inconvenient replacement under the welded connection method is solved, the sealing performance and stability of the oil pipe are improved, and the service life is extended.

CN223894612UActive Publication Date: 2026-02-10CHANGZHOU AOSAILIN HYDRAULIC & PNEUMATIC COMPONENTS CO LTD
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Patent Information

Application Number
CN202520405549.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-02-10
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

The existing hydraulic cylinder oil pipes are fixed by welding, which makes replacement and maintenance inconvenient.

Method used

The hydraulic cylinder uses a detachable oil pipe structure, which utilizes components such as oil pipe connectors, connectors, sealing seats, fixed pads, movable pads, limit seats, top plates and fastening screws to achieve convenient disassembly and assembly of the oil pipe, and improves connection stability through limit rings and limit baffles.

Benefits of technology

It improves the sealing performance and ease of assembly and disassembly of hydraulic hoses, enhances the stability of hoses and connectors, reduces the impact of vibration on hoses, and extends service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223894612U_ABST
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Abstract

The utility model relates to a detachable hydraulic cylinder oil pipe structure, which belongs to the technical field of hydraulic equipment and comprises a hydraulic cylinder, a hydraulic oil pipe, a connecting seat, an input pipe and an oil pipe connector. And a sealing seat is fixedly mounted on the peripheral wall of the hydraulic oil pipe. According to the detachable hydraulic cylinder oil pipe structure, the detachable hydraulic cylinder oil pipe structure is connected with a hydraulic oil pipe under the action of the oil pipe connector and the connector, the sealing performance of connection of the hydraulic oil pipe is improved under the action of the sealing seat, and the hydraulic oil pipe is fixed under the action of the fixed base plate, the movable base plate, the limiting seat, the top plate and the fastening screw; and the hydraulic oil pipe is additionally limited under the action of the connecting block, the movable clamping seat, the fixed clamping seat, the limiting ring and the limiting baffle, so that the fixing stability of the hydraulic oil pipe is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic equipment technical field, concretely is a detachable hydraulic cylinder oil pipe structure. BACKGROUND

[0002] The hydraulic cylinder oil pipe is the pipeline connecting the hydraulic pump, control valve and hydraulic cylinder and other components in the hydraulic system, and is used for conveying hydraulic oil to transmit power and pressure. These oil pipes are usually made of high-pressure-resistant and oil-resistant materials, such as steel, stainless steel or special rubber, to ensure good sealing performance and long service life in high-pressure and oil environment. The two ends of the oil pipe are connected with various components of the hydraulic system through special quick connectors or welded joints, so that the hydraulic oil can circulate in the system, thereby driving the hydraulic cylinder to perform linear reciprocating motion or maintain a certain thrust to realize the action and control of various mechanical equipment.

[0003] At present, in the existing hydraulic system, the connection mode of the hydraulic cylinder oil pipe and the hydraulic cylinder is usually welding technology. This connection method ensures the sealing and pressure resistance of the oil pipe to a certain extent, meets the working requirements of the hydraulic system in high-pressure environment, however, with the use and maintenance of the hydraulic equipment, this welding connection mode gradually exposes some problems. Since the oil pipe is fixed on the hydraulic cylinder by welding, once the oil pipe needs to be replaced or the hydraulic system needs to be maintained, this fixed connection mode is very inconvenient, therefore, a detachable hydraulic cylinder oil pipe structure is proposed. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a detachable hydraulic cylinder oil pipe structure, which has the advantages of facilitating replacement of the hydraulic oil pipe, and solves the problem that the oil pipe is fixed on the hydraulic cylinder by welding, and once the oil pipe needs to be replaced or the hydraulic system needs to be maintained, the fixed connection mode is very inconvenient.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a detachable hydraulic cylinder oil pipe structure, comprising a hydraulic cylinder, a hydraulic oil pipe, a connecting seat, an input pipe and an oil pipe connector, the outer wall of the hydraulic cylinder is provided with a dismounting structure;

[0006] The disassembly structure comprises a connector fixedly installed on the right side of the oil pipe connector, the outer peripheral wall of the hydraulic oil pipe is fixedly installed with a sealing seat, the outer wall of the top of the hydraulic cylinder is fixedly installed with a fixed base plate, the outer wall of the top of the sealing seat is fixedly installed with a movable base plate, the outer wall of the top of the movable base plate is movably installed with a limiting seat, the outer wall of the top of the limiting seat is fixedly installed with a top plate, the inside of the top plate is movably installed with two fastening screws, the outer wall of the bottom of the top plate is fixedly installed with three connecting blocks, the outer wall of the bottom of the connecting block is fixedly installed with a movable clamping seat, the outer wall of the top of the hydraulic cylinder is fixedly installed with three fixed clamping seats, the outer peripheral wall of the hydraulic oil pipe is fixedly installed with three limiting rings, and the outer wall of the bottom of the top plate is fixedly installed with three limiting baffle plates.

[0007] Further, the hydraulic oil pipe is slidably connected to the inner peripheral wall of the connector, the sealing seat is rectangular, a circular groove is formed in the inside of the sealing seat, and the connector is slidably connected to the inside of the circular groove and is appropriately sized.

[0008] Further, the sealing seat is movably installed on the top of the fixed base plate, and the fixed base plate and the movable base plate are identically sized.

[0009] Further, two threaded grooves are formed in the inside of the fixed base plate, and installation holes are formed in the inside of the movable base plate, the limiting seat and the top plate, the inside of the threaded groove of the fixed base plate is threadedly connected to the fastening screw slidably penetrating through the inside of the installation hole and is appropriately sized.

[0010] Further, arc-shaped grooves are formed in the opposite side outer walls of two adjacent movable clamping seats and fixed clamping seats, and the hydraulic oil pipe is slidably connected to the inside of the arc-shaped grooves and is appropriately sized.

[0011] Further, the limiting rings are attached to the right side outer walls of the movable clamping seat and the fixed clamping seat, a semicircular groove is formed in the bottom of the limiting baffle plate, the limiting baffle plate is slidably connected to the outer peripheral wall of the hydraulic oil pipe, and three limiting baffle plates are respectively attached to the right side outer walls of the three limiting rings.

[0012] Further, the connecting seat is fixedly installed on the top of the hydraulic cylinder, the input pipe is fixedly installed between the hydraulic cylinder and the connecting seat, the oil pipe connector is fixedly installed on the top of the hydraulic cylinder, and the hydraulic oil pipe is movably installed above the hydraulic cylinder.

[0013] Further, the arc-shaped rubber pads are fixedly installed in the inside of the movable clamping seat and the fixed clamping seat.

[0014] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0015] The detachable hydraulic cylinder oil pipe structure is connected with the hydraulic oil pipe through the oil pipe connector and the connector, the sealing performance of the hydraulic oil pipe connection is improved through the sealing seat, the hydraulic oil pipe is fixed through the fixed base plate, the movable base plate, the limiting seat, the top plate and the fastening screw, the convenience of the hydraulic oil pipe disassembly is improved, the hydraulic oil pipe is additionally limited through the connecting block, the movable clamping seat, the fixed clamping seat, the limiting ring and the limiting baffle, and therefore the stability of the hydraulic oil pipe fixing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is the utility model Figure 1 It is an enlarged structural schematic view of A;

[0018] Figure 3 It is the utility model Figure 1 It is a partial sectional structural schematic view;

[0019] Figure 4 It is a structural schematic view of the fixed clamping seat of the utility model.

[0020] In the drawing:

[0021] 1, hydraulic cylinder; 2, hydraulic oil pipe; 3, connecting seat; 4, input pipe; 5, oil pipe connector; 6, connector; 7, sealing seat; 8, fixed base plate; 9, movable base plate; 10, limiting seat; 11, top plate; 12, fastening screw; 13, connecting block; 14, movable clamping seat; 15, fixed clamping seat; 16, limiting ring; 17, limiting baffle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Embodiment one, please refer to Figures 1 to 4 A detachable hydraulic cylinder oil pipe structure in the embodiment comprises a hydraulic cylinder 1, a hydraulic oil pipe 2, a connecting seat 3, an input pipe 4 and an oil pipe connector 5, and the outer wall of the hydraulic cylinder 1 is provided with a dismounting structure.

[0024] The connecting seat 3 is fixedly installed on the top of the hydraulic cylinder 1, the input pipe 4 is fixedly installed between the hydraulic cylinder 1 and the connecting seat 3, the oil pipe connector 5 is fixedly installed on the top of the hydraulic cylinder 1, and the hydraulic oil pipe 2 is movably installed above the hydraulic cylinder 1.

[0025] The disassembly and assembly structure comprises a connecting head 6 fixedly installed on the right side of the oil pipe connector 5, a sealing seat 7 fixedly installed on the outer peripheral wall of the hydraulic oil pipe 2, and the hydraulic oil pipe 2 is slidably connected to the inner peripheral wall of the connecting head 6. The sealing seat 7 is rectangular, a circular groove is formed in the interior of the sealing seat 7, and the connecting head 6 is slidably connected to the interior of the circular groove and is appropriately sized.

[0026] A fixed base plate 8 is fixedly installed on the top outer wall of the hydraulic cylinder 1, a movable base plate 9 is fixedly installed on the top outer wall of the sealing seat 7, the sealing seat 7 is movably installed on the top of the fixed base plate 8, the fixed base plate 8 and the movable base plate 9 are the same size, a limiting seat 10 is movably installed on the top outer wall of the movable base plate 9, a top plate 11 is fixedly installed on the top outer wall of the limiting seat 10, two fastening screws 12 are movably installed in the interior of the top plate 11, two threaded grooves are formed in the interior of the fixed base plate 8, installation holes are formed in the interiors of the movable base plate 9, the limiting seat 10 and the top plate 11, and the fastening screws 12 are slidably threadedly connected to the interiors of the threaded grooves and are appropriately sized.

[0027] Three connecting blocks 13 are fixedly installed on the bottom outer wall of the top plate 11, a movable clamping seat 14 is fixedly installed on the bottom outer wall of the connecting block 13, three fixed clamping seats 15 are fixedly installed on the top outer wall of the hydraulic cylinder 1, arc-shaped grooves are formed in the opposite outer walls of two adjacent movable clamping seats 14 and fixed clamping seats 15, the hydraulic oil pipe 2 is slidably connected to the interiors of the arc-shaped grooves and is appropriately sized, three limiting rings 16 are fixedly installed on the outer peripheral wall of the hydraulic oil pipe 2, and three limiting baffle plates 17 are fixedly installed on the bottom outer wall of the top plate 11.

[0028] The limiting rings 16 are attached to the right outer walls of the movable clamping seats 14 and the fixed clamping seats 15, semicircular grooves are formed in the bottom of the limiting baffle plates 17, the limiting baffle plates 17 are slidably connected to the outer peripheral wall of the hydraulic oil pipe 2, and the three limiting baffle plates 17 are respectively attached to the right outer walls of the three limiting rings 16.

[0029] In this embodiment, the sealing seat 7 seals the connection between the hydraulic oil pipe 2 and the oil pipe connector 5, thereby improving the sealing performance of the hydraulic oil pipe 2.

[0030] In this embodiment, the limiting rings 16 and the limiting baffle plates 17 reinforce the hydraulic oil pipe 2, thereby improving the stability of the connection between the hydraulic oil pipe 2 and the oil pipe connector 5.

[0031] The second embodiment is based on the first embodiment, and is provided with an arc-shaped rubber pad, which has good elasticity, can absorb and buffer the vibration generated during the operation of the hydraulic system, reduces the impact of the vibration on the hydraulic oil pipe 2 and the connecting parts, and prolongs the service life of the hydraulic oil pipe 2 and the connecting parts.

[0032] The working principle of the above embodiment is as follows:

[0033] When the hydraulic oil pipe 2 is installed, first, the hydraulic oil pipe 2 is slid from right to left in the inside of the connecting head 6, while the sealing seat 7 is slid to connect to the outside of the connecting head 6, and the hydraulic oil pipe 2 is located in the inside of the fixed clamping seat 15, and the hydraulic oil pipe 2 cannot be moved after the limiting ring 16 is attached to the right side of the fixed clamping seat 15, then the limiting seat 10 is attached to the top of the movable pad 9, and the movable clamping seat 14 is connected with the fixed clamping seat 15 and wraps the hydraulic oil pipe 2, and the limiting baffle 17 is attached to the outer wall of the hydraulic oil pipe 2 and is attached to the right outer wall of the limiting ring 16, and finally the fastening screw 12 is screwed into the inside of the fixed pad 8 through the inside of the top plate 11, the limiting seat 10 and the movable pad 9, at this time, the installation work of the hydraulic oil pipe 2 is completed.

[0034] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent to such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus including the element.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable hydraulic cylinder oil pipe structure, comprising a hydraulic cylinder (1), a hydraulic oil pipe (2), a connecting seat (3), an input pipe (4), and an oil pipe connector (5), characterized in that: The outer wall of the hydraulic cylinder (1) is provided with a disassembly structure; The disassembly and assembly structure includes a connector (6) fixedly installed on the right side of the oil pipe connector (5), a sealing seat (7) fixedly installed on the outer peripheral wall of the hydraulic oil pipe (2), a fixed pad (8) fixedly installed on the top outer wall of the hydraulic cylinder (1), a movable pad (9) fixedly installed on the top outer wall of the sealing seat (7), a limiting seat (10) movably installed on the top outer wall of the movable pad (9), a top plate (11) fixedly installed on the top outer wall of the limiting seat (10), and the top plate (11) is movably installed inside. The top plate (11) is equipped with two fastening screws (12), and three connecting blocks (13) are fixedly installed on the bottom outer wall of the top plate (11). A movable clamping seat (14) is fixedly installed on the bottom outer wall of the connecting block (13). Three fixed clamping seats (15) are fixedly installed on the top outer wall of the hydraulic cylinder (1). Three limiting rings (16) are fixedly installed on the outer peripheral wall of the hydraulic oil pipe (2). Three limiting baffles (17) are fixedly installed on the bottom outer wall of the top plate (11).

2. The detachable hydraulic cylinder oil pipe structure according to claim 1, characterized in that: The hydraulic oil pipe (2) is slidably connected to the inner circumferential wall of the connector (6). The sealing seat (7) is rectangular and has a circular groove inside. The connector (6) is slidably connected to the inside of the circular groove and is of a suitable size.

3. The detachable hydraulic cylinder oil pipe structure according to claim 1, characterized in that: The sealing seat (7) is movably mounted on the top of the fixed pad (8), and the fixed pad (8) is the same size as the movable pad (9).

4. The detachable hydraulic cylinder oil pipe structure according to claim 1, characterized in that: The fixed pad (8) has two threaded grooves inside. The movable pad (9), the limiting seat (10) and the top plate (11) all have mounting holes inside. The fixed pad (8) has two threaded grooves inside. The fastening screw (12) slides through the mounting hole and is threaded inside the threaded groove and is of the same size.

5. The detachable hydraulic cylinder oil pipe structure according to claim 1, characterized in that: The outer walls of the two adjacent movable clamping seats (14) and fixed clamping seats (15) on opposite sides are provided with arc-shaped grooves, and the hydraulic oil pipe (2) is slidably connected inside the arc-shaped grooves and is of the same size.

6. The detachable hydraulic cylinder oil pipe structure according to claim 1, characterized in that: The limiting ring (16) is attached to the right outer wall of the movable clamping seat (14) and the fixed clamping seat (15). The bottom of the limiting baffle (17) is provided with a semi-circular groove. The limiting baffle (17) is slidably connected to the outer peripheral wall of the hydraulic oil pipe (2). The three limiting baffles (17) are respectively attached to the right outer wall of the three limiting rings (16).

7. The detachable hydraulic cylinder oil pipe structure according to claim 1, characterized in that: The connecting seat (3) is fixedly installed on the top of the hydraulic cylinder (1), the input pipe (4) is fixedly installed between the hydraulic cylinder (1) and the connecting seat (3), the oil pipe connector (5) is fixedly installed on the top of the hydraulic cylinder (1), and the hydraulic oil pipe (2) is movably installed above the hydraulic cylinder (1).

8. The detachable hydraulic cylinder oil pipe structure according to claim 1, characterized in that: Both the movable clamping seat (14) and the fixed clamping seat (15) are fixedly installed with arc-shaped rubber pads inside.