Hydraulic cylinder supporting and protecting device

By designing a hydraulic cylinder support protection device and using a hinge bolt to open and close the support sleeve, the problem of hydraulic cylinder rod retraction is solved, ensuring the effective support length of the hydraulic cylinder and making it suitable for short-stroke hydraulic cylinders.

CN223894611UActive Publication Date: 2026-02-10JINNENG HLDG EQUIP MFG GRP TIANHE ZHONGBANG SHANXI ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520310702.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-02-10
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

The cylinder rod of a hydraulic cylinder sometimes slowly retracts part of its length after extending, resulting in a reduction in effective support.

Method used

A hydraulic cylinder support and protection device was designed, consisting of a support sleeve composed of a first half and a second half. The support sleeve is opened and closed by a horizontally set hinge bolt and fixed to the cylinder rod to ensure effective extension length.

Benefits of technology

It effectively avoids support failure of hydraulic cylinders due to leakage, ensures the effective extension length of hydraulic cylinders, and is easy to install, making it suitable for supporting short-stroke hydraulic cylinders.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hydraulic cylinder supporting and protecting device which comprises a supporting sleeve formed by oppositely buckling a first half body and a second half body, the first ends of the first half body and the second half body are connected through a first pin shaft, and the second ends of the first half body and the second half body are connected through a locking device; a first connecting base is arranged in the middle of the outer side face of the second end of the first half body, a second connecting base is arranged in the middle of the outer side face of the second end of the second half body, and the locking device is a swing bolt and is perpendicular to the axis of the supporting sleeve. After the cylinder rod extends out, the first half body and the second half body of the supporting sleeve are arranged on the cylinder rod in a sleeved mode, the upper end and the lower end of the supporting sleeve abut against the upper supporting plate and the lower supporting plate respectively, the first half body and the second half body are rotated to enable the second end to be closed, and then the nut is screwed to fix the first half body and the second half body. The supporting failure caused by leakage of the hydraulic cylinder is avoided, the effective extension length of the hydraulic cylinder can be effectively guaranteed, installation is easy and convenient, supporting is reliable, and the supporting device is more suitable for supporting the short-stroke hydraulic cylinder.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and specifically to a hydraulic cylinder support and protection device. Background Technology

[0002] Hydraulic cylinders are widely used in the field of support, such as supporting machine bases and lifting work platforms in mechanical equipment, and supporting temporary structures such as formwork and scaffolding in construction machinery.

[0003] Due to leakage problems in hydraulic components such as cylinders or hydraulic valves, the cylinder rod may sometimes slowly retract part of its length after extending, thereby reducing the effective support of the hydraulic cylinder. Utility Model Content

[0004] To address the aforementioned deficiencies, the technical problem to be solved by this utility model is to provide a hydraulic cylinder support and protection device to solve the problem that, in the prior art, the cylinder rod of a hydraulic cylinder sometimes slowly retracts part of its length after being extended, thereby reducing the effective support of the hydraulic cylinder.

[0005] Therefore, this application provides a hydraulic cylinder support protection device, including a support sleeve, which is composed of a first half and a second half that are fastened together. The first half and the second half have the same shape. The outer surfaces of the first ends of the first half and the second half are connected by a first pin. The outer surfaces of the second ends of the first half and the second half are connected by a locking device. A first connecting seat is provided in the middle of the outer surface of the second end of the first half, and a second connecting seat is provided in the middle of the outer surface of the second end of the second half. The locking device is a hinged bolt, which is perpendicular to the axis of the support sleeve.

[0006] Based on the above technical solutions, the hydraulic cylinder support protection device includes a support sleeve, which is composed of a first half and a second half that are fastened together. A horizontally set hinge bolt is used to open and close the first half and the second half of the support sleeve to support the extended cylinder rod. This avoids support failure caused by leakage of the hydraulic cylinder, effectively ensures the effective extension length of the hydraulic cylinder, is simple and convenient to install, provides reliable support, and is more suitable for supporting short-stroke hydraulic cylinders.

[0007] In the above technical solution, preferably, a hinge seat is provided in the middle of the outer side of the first end of the first half, and a first notch is provided in the middle of the hinge seat. A hinge ear is provided on the outer side of the first end of the second half. The hinge ear is inserted into the first notch. A first pin is provided through the hinge seat and the hinge ear from top to bottom, so as to hinge the sides of the first half and the second half together.

[0008] In the above technical solution, preferably, the locking device includes a rotating sleeve and a stud disposed on the outer circumferential surface of the rotating sleeve. The stud is disposed radially along the rotating sleeve. The rotating sleeve is rotatably disposed on the first connecting seat via a second pin. The second connecting seat has a second notch in the middle. The end of the stud is disposed in the second notch and a nut is disposed thereon.

[0009] In the above technical solution, preferably, the upper and lower ends of the first connecting seat and the second connecting seat are respectively provided with reinforcing ribs.

[0010] As can be seen from the above technical solution, the hydraulic cylinder support and protection device provided by this utility model solves the problem that in the prior art, the cylinder rod of the hydraulic cylinder sometimes slowly retracts part of its length after extension, thus reducing the effective support of the hydraulic cylinder. Compared with the prior art, this utility model has the following beneficial effects:

[0011] The hydraulic cylinder support and protection device includes a support sleeve, which is composed of a first half and a second half that are fastened together. The end of the cylinder rod of the hydraulic cylinder is provided with a lower support plate, and the cylinder body of the hydraulic cylinder is provided with an upper support plate. When the cylinder rod extends, the first half and the second half of the support sleeve are fitted onto the cylinder rod. The upper and lower ends of the support sleeve abut against the upper support plate and the lower support plate, respectively. The first half and the second half are rotated to close the second end, and then the nut is tightened to close and fix the first half and the second half. This avoids support failure of the hydraulic cylinder due to leakage, effectively ensures the effective extension length of the hydraulic cylinder, is simple and convenient to install, provides reliable support, and is more suitable for supporting short-stroke hydraulic cylinders. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced and explained below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A schematic diagram of the hydraulic cylinder support and protection device provided by this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the hydraulic cylinder support protection device shown from the rear view.

[0015] Figure 3 This is a schematic diagram of the usage state of this utility model.

[0016] Figures 1-3 The correspondence between the parts is as follows:

[0017] First half 10, second half 20, first pin 30, locking device 40;

[0018] Hinged seat 11, first connecting seat 12;

[0019] Hinge lug 21, second connecting seat 22;

[0020] 41. Sleeve 42. Stud 43. Second pin 44. Nut 44;

[0021] Cylinder rod 51, lower support plate 52, cylinder body 53, upper support plate 54. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To provide a clearer explanation and description of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.

[0024] It should be noted that the directional terms such as "inner" and "outer", "front" and "back" and "left" and "right" in this article are based on the product's usage status. Obviously, the use of these directional terms does not limit the scope of protection of this solution.

[0025] like Figure 1 , Figure 2 As shown, the present invention provides a hydraulic cylinder support and protection device, comprising a support sleeve formed by the mutual fastening of a first half 10 and a second half 20. In this embodiment, the support sleeve is a cylindrical shape with open top and bottom for ease of manufacturing and high support strength. Obviously, in this application, the support sleeve can also be rectangular or other shapes.

[0026] The first half 10 and the second half 20 have the same shape. The outer surfaces of the first ends of the first half 10 and the second half 20 are connected by the first pin 30, and the outer surfaces of the second ends of the first half 10 and the second half 20 are connected by the locking device 40. Thus, the second ends of the first half 10 and the second half 20 can be opened or closed by opening and closing the locking device 40. The first ends of the first half 10 and the second half 20 can rotate around the first pin 30 to realize the opening and closing of the support sleeve.

[0027] Specifically, a hinge seat 11 is provided at the middle of the outer side of the first end of the first half 10, and a first notch is provided at the middle of the hinge seat 11. A hinge ear 21 is provided at the outer side of the first end of the second half 20. The hinge ear 21 is inserted into the first notch on the hinge seat 11. A first pin 30 is provided to pass through the hinge seat 11 and the hinge ear 21 from top to bottom, so as to hinge the first half 10 and the second half 20 together.

[0028] The first half 10 has a first connecting seat 12 at the middle of the outer side of the second end, and the second half 20 has a second connecting seat 22 at the middle of the outer side of the second end. The locking device 40 is a hinged bolt, which is set perpendicular to the axis of the support sleeve.

[0029] The locking device 40 includes a rotating sleeve 41 and a stud 42 disposed on the outer circumferential surface of the rotating sleeve 41, with the stud 42 arranged radially along the rotating sleeve 41. The rotating sleeve 41 is rotatably mounted on the first connecting seat 22 via a second pin 43. The second connecting seat 22 has a second notch in its middle. A nut 44 is disposed at the end of the stud 42 within the second notch to close and fix the second ends of the first half 10 and the second half 20. After loosening the nut 44, the stud 42 can be rotated to disengage from the second notch, thereby opening the second ends of the first half 10 and the second half 20.

[0030] The upper and lower ends of the first connecting seat 12 and the second connecting seat 22 are respectively provided with reinforcing ribs to improve the strength of the first connecting seat 12 and the second connecting seat 22.

[0031] like Figure 2 , Figure 3 As shown, the method of using this utility model is as follows:

[0032] The cylinder rod 51 of the hydraulic cylinder is provided with a lower support plate 52 at its end, and the cylinder body 53 of the hydraulic cylinder is provided with an upper support plate 54 at its extended end. First, loosen the nut 44 and rotate the stud 42 to open the second ends of the first half 10 and the second half 20. After the cylinder rod 51 extends, the first half 10 and the second half 20 of the support sleeve are fitted onto the cylinder rod 51. The upper and lower ends of the support sleeve abut against the upper support plate 54 and the lower support plate 52, respectively. Then, rotate the first half 10 and the second half 20 to close the second ends. Then, rotate the stud 42 to allow the stud 42 to enter the second notch. Finally, tighten the nut 44 to fix the first connecting seat 12 and the second connecting seat 22, so that the first half 10 and the second half 20 are closed and fixed.

[0033] The proposed solution uses horizontally arranged hinge bolts to open and close the first half 10 and the second half 20 of the support sleeve to support the extended cylinder rod, thereby effectively ensuring the effective extension length of the hydraulic cylinder. The structure is simple and easy to use.

[0034] For hydraulic cylinders with short strokes, the limited space makes it difficult to add structures such as locating pins for positioning and locking. However, the solution in this application uses an openable support sleeve structure with side fixing, which is not affected by the limited space and is more convenient to use.

[0035] Based on the above description of specific embodiments, the hydraulic cylinder support and protection device provided by this utility model has the following advantages compared with the prior art:

[0036] First, the horizontally set hinge bolts are used to open and close the first and second halves of the support sleeve to support the extended cylinder rod, avoiding support failure caused by leakage of the hydraulic cylinder, effectively ensuring the effective extension length of the hydraulic cylinder, with a simple structure and convenient use.

[0037] Secondly, this application is simple and convenient to install, provides reliable support, and is more suitable for supporting short-stroke hydraulic cylinders.

[0038] Finally, it should be noted that the terms "comprising," "including," or any other variations thereof as used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a…" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] This utility model is not limited to the above-described preferred embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

Claims

1. A hydraulic cylinder support and protection device, characterized in that, include: The support sleeve is composed of a first half and a second half that are fastened together. The first half and the second half have the same shape. The outer surfaces of the first ends of the first half and the second half are connected by a first pin. The outer surfaces of the second ends of the first half and the second half are connected by a locking device. A first connecting seat is provided in the middle of the outer surface of the second end of the first half, and a second connecting seat is provided in the middle of the outer surface of the second end of the second half. The locking device is a hinged bolt and is set perpendicular to the axis of the support sleeve.

2. The hydraulic cylinder support and protection device according to claim 1, characterized in that, A hinge seat is provided at the middle of the outer side of the first end of the first half, and a first notch is provided at the middle of the hinge seat. A hinge ear is provided on the outer side of the first end of the second half. The hinge ear is inserted into the first notch. A first pin is provided through the hinge seat and the hinge ear from top to bottom, so as to hinge the sides of the first half and the second half together.

3. The hydraulic cylinder support protection device according to claim 1, characterized in that, The locking device includes a rotating sleeve and a stud disposed on the outer circumferential surface of the rotating sleeve. The stud is disposed radially along the rotating sleeve. The rotating sleeve is rotatably disposed on the first connecting seat via a second pin. The second connecting seat has a second notch in the middle. The end of the stud is disposed in the second notch and a nut is provided thereon.

4. The hydraulic cylinder support and protection device according to claim 1, characterized in that, The first connecting seat and the second connecting seat are respectively provided with reinforcing ribs at their upper and lower ends.