Exhaust structure of hydraulic oil cylinder

By designing a sealing and transfer mechanism for the hydraulic cylinder, effective cleaning of hydraulic oil and convenient replacement of components are achieved, solving the problems of hydraulic oil oxidation and corrosion, and improving the stability and safety of the equipment.

CN223621908UActive Publication Date: 2025-12-02SHANDONG XINGTIAN MACHINERY
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Patent Information

Application Number
CN202520342579.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-12-02
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

The venting structure of existing hydraulic cylinders causes hydraulic oil to oxidize and deteriorate, which in turn corrodes sealing components, affecting equipment stability and safety, and making maintenance difficult.

Method used

A hydraulic cylinder exhaust structure including a sealing mechanism and a transfer mechanism was designed. By using a first connecting container, a transparent water pipe, a blocking plug, a spring, and a connecting rod, the gas and hydraulic oil are separated and cleaned through the separation of the groove and the blocking plug, which facilitates component replacement and maintenance.

Benefits of technology

It achieves effective cleaning of hydraulic oil, avoids oxidation and corrosion, improves the stability of the device and the comprehensiveness of maintenance, and reduces the risk of hydraulic oil leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an exhaust structure of a hydraulic oil cylinder, which comprises a hydraulic cylinder body, a sealing mechanism and a switching mechanism, the hydraulic cylinder body is provided with an oil outlet and a liquid conveying port, the sealing mechanism is arranged on the outer side of the hydraulic cylinder body, and the switching mechanism is arranged at the side end of the sealing mechanism; the sealing mechanism comprises a first water pipe, the first water pipe is communicated with the hydraulic cylinder body, and the end, away from the hydraulic cylinder body, of the first water pipe is communicated with a ball valve; according to the exhaust structure of the hydraulic oil cylinder, through the first connecting container, the transparent water pipe, the blocking plug, the spring, the second connecting container and the connecting rod, hydraulic oil in a switching mechanism can be cleaned conveniently, each component can be cleaned or replaced conveniently, and the switching mechanism can be maintained more comprehensively and deeply; and the situation that the hydraulic oil remains in the switching mechanism for a long time, oxidation, deterioration and the like are caused, sealing components are corroded, and hydraulic oil leakage is caused is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to an exhaust structure for a hydraulic cylinder. Background Technology

[0002] As the core actuator in a hydraulic system, the performance stability of a hydraulic cylinder directly affects the operating efficiency and reliability of mechanical equipment. When air is mixed into the hydraulic fluid or residual gas is present in the cylinder, it may cause vibration, creep, noise, or even failure of the entire system.

[0003] In existing venting structures, hydraulic oil and gas are discharged together during the venting process. However, hydraulic oil remains inside the venting structure after venting. The hydraulic oil in the venting structure is in long-term contact with air, which causes oxidation and deterioration, and then corrodes the sealing components, eventually leading to hydraulic oil leakage. Hydraulic oil leakage not only causes environmental pollution, but may also cause equipment failure. In severe cases, it may cause safety accidents such as fires. Moreover, the venting structure is complex, making it difficult to clean or replace each component, which affects the comprehensiveness and depth of maintenance.

[0004] Therefore, this utility model provides a venting structure for a hydraulic cylinder to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a venting structure for a hydraulic cylinder, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a venting structure for a hydraulic cylinder, comprising a hydraulic cylinder body, wherein the hydraulic cylinder body is provided with an oil outlet and a liquid inlet, and further comprising a sealing mechanism and a transfer mechanism, wherein the sealing mechanism is disposed on the outside of the hydraulic cylinder body, and the transfer mechanism is disposed on the side end of the sealing mechanism;

[0007] The sealing mechanism includes a first water pipe, which is connected to a hydraulic cylinder body, and a ball valve is connected to the end of the first water pipe away from the hydraulic cylinder body.

[0008] The adapter mechanism includes a first connecting container and a blocking plug. The first connecting container has a transparent water pipe connected to its side end. The blocking plug has a threaded hole at its end away from the first water pipe. A second connecting container is fixedly connected to the first connecting container by bolts.

[0009] Preferably, the end of the ball valve furthest from the first water pipe is connected to a second water pipe.

[0010] Preferably, the second water pipe has several grooves inside, and the length of the grooves accounts for one-fifth of the length of the second water pipe.

[0011] Preferably, the adapter further includes a connecting rod, which is movably connected to the second connecting container. The second connecting container has a thread at one end near the first connecting container, and the first connecting container is threaded onto the stop plug.

[0012] Preferably, a spring is provided on the outside of the connecting rod, and the spring is disposed inside the second connecting container and the first connecting container.

[0013] Preferably, the length of the blocking plug is 1.5 times the length of the groove, one end of the spring abuts against the blocking plug, and the other end abuts against the second connecting container, and the blocking plug abuts against the bottom end of the first connecting container through the spring and the second connecting container.

[0014] Beneficial effects:

[0015] This invention provides a venting structure for a hydraulic cylinder. Compared with the prior art, it has the following advantages:

[0016] (1) A venting structure for a hydraulic cylinder, which facilitates cleaning of hydraulic oil in the transfer mechanism through a first connecting container, a transparent water pipe, a blocking plug, a spring, a second connecting container and a connecting rod, facilitates cleaning or replacement of each component, and is conducive to more comprehensive and in-depth maintenance of the transfer mechanism, avoiding the hydraulic oil remaining in the transfer mechanism for a long time, which may cause oxidation, deterioration and other situations, and thus corrode the sealing components, leading to hydraulic oil leakage.

[0017] (2) A hydraulic cylinder exhaust structure, which, through a connecting rod, causes the blocking plug to move away from the ball valve, causing the groove to separate from the blocking plug, and the hydraulic oil to flow along the groove into the first connecting container, thereby avoiding disordered flow of hydraulic oil and improving the stability of the overall device. Attached Figure Description

[0018] Figure 1 This is a side view of the overall device structure of this utility model;

[0019] Figure 2 This is a side view of the adapter mechanism of this utility model;

[0020] Figure 3 This is a side view of the structure of the electric sealing mechanism of this utility model;

[0021] Figure 4 This is a side view of the overall device structure of this utility model.

[0022] In the diagram: 1. Hydraulic cylinder body; 2. Oil outlet; 3. Fluid inlet;

[0023] Sealing mechanism: 41. First water pipe; 42. Ball valve; 43. Second water pipe; 44. Tank;

[0024] Adapter mechanism: 51. First connecting container; 52. Transparent water pipe; 53. Blocking plug; 54. Spring; 55. Second connecting container; 56. Connecting rod. Detailed Implementation

[0025] 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 described embodiments 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.

[0026] Example 1:

[0027] Please see Figure 1-4 A venting structure for a hydraulic cylinder includes a hydraulic cylinder body 1, which has an oil outlet 2 and a liquid inlet 3. It also includes a sealing mechanism and a transfer mechanism. The sealing mechanism is located on the outside of the hydraulic cylinder body 1, and the transfer mechanism is located on the side of the sealing mechanism.

[0028] The sealing mechanism includes a first water pipe 41, which is connected to the hydraulic cylinder body 1, and a ball valve 42 is connected to the end of the first water pipe 41 away from the hydraulic cylinder body 1.

[0029] The adapter includes a first connecting container 51 and a blocking plug 53. A transparent water pipe 52 is connected to the side of the first connecting container 51. A threaded hole is opened at the end of the blocking plug 53 away from the first water pipe 41. A second connecting container 55 is fixedly connected to the first connecting container 51 by bolts.

[0030] The end of the ball valve 42 furthest from the first water pipe 41 is connected to the second water pipe 43.

[0031] The second water pipe 43 has several grooves 44 inside, and the length of the grooves 44 is one-fifth of the length of the second water pipe 43.

[0032] The adapter also includes a connecting rod 56, which is movably connected to the second connecting container 55. The second connecting container 55 has a thread at one end near the first connecting container 51, and the first connecting container 51 is threadedly connected to the stop plug 53.

[0033] A spring 54 is provided on the outside of the connecting rod 56, and the spring 54 is located inside the second connecting container 55 and the first connecting container 51.

[0034] The length of the blocking plug 53 is 1.5 times the length of the groove 44. One end of the spring 54 abuts against the blocking plug 53, and the other end abuts against the second connecting container 55. The blocking plug 53 abuts against the bottom of the first connecting container 51 through the spring 54 and the second connecting container 55.

[0035] Working process: Place the hydraulic cylinder 1 horizontally, with the gas rising. Open the ball valve 42 to allow hydraulic oil to flow into the first water pipe 41 and the second water pipe 43. When the hydraulic oil passes through the second water pipe 43, manually pull the connecting rod 56 to move the blocking plug 53 away from the ball valve 42, causing the groove 44 to separate from the blocking plug 53. The hydraulic oil flows along the groove 44 into the first connecting container 51, and then the gas and hydraulic oil are transported out through the transparent water pipe 52, avoiding disorderly flow of hydraulic oil and improving the stability of the overall device.

[0036] After the gas is discharged, close the ball valve 42, and disassemble the entire adapter mechanism by removing the second water pipe 43. Disassemble the second connecting container 55 from the first connecting container 51, and then rotate the connecting rod 56 to separate it from the blocking plug 53. This facilitates the quick disassembly of the adapter mechanism, makes it easy to clean the hydraulic oil inside the adapter mechanism, and makes it easy to clean or replace each component. This allows for more comprehensive and in-depth maintenance of the adapter mechanism, preventing hydraulic oil from remaining in the adapter mechanism for a long time, which could lead to oxidation, deterioration, corrosion of sealing components, and hydraulic oil leakage.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof 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 process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A venting structure for a hydraulic cylinder, comprising a hydraulic cylinder body (1), wherein the hydraulic cylinder body (1) is provided with an oil outlet (2) and a fluid inlet (3), characterized in that, It also includes a sealing mechanism and a transfer mechanism, wherein the sealing mechanism is disposed on the outside of the hydraulic cylinder body (1) and the transfer mechanism is disposed on the side end of the sealing mechanism; The sealing mechanism includes a first water pipe (41), which is connected to the hydraulic cylinder body (1), and a ball valve (42) is connected to the end of the first water pipe (41) away from the hydraulic cylinder body (1). The adapter includes a first connecting container (51) and a blocking plug (53). The first connecting container (51) is connected to a transparent water pipe (52) on one side. The blocking plug (53) has a threaded hole at one end away from the first water pipe (41). A second connecting container (55) is fixedly connected to the first connecting container (51) by bolts.

2. The exhaust structure of a hydraulic cylinder according to claim 1, characterized in that: The end of the ball valve (42) away from the first water pipe (41) is connected to the second water pipe (43).

3. The exhaust structure of a hydraulic cylinder according to claim 2, characterized in that: The second water pipe (43) has several grooves (44) inside, and the length of the grooves (44) is one-fifth of the length of the second water pipe (43).

4. The venting structure of a hydraulic cylinder according to claim 1, characterized in that: The adapter mechanism also includes a connecting rod (56), which is movably connected to a second connecting container (55). The second connecting container (55) has a thread at one end near the first connecting container (51), and the first connecting container (51) is threaded onto a stop plug (53).

5. The exhaust structure of a hydraulic cylinder according to claim 4, characterized in that: A spring (54) is provided on the outside of the connecting rod (56), and the spring (54) is located inside the second connecting container (55) and the first connecting container (51).

6. The exhaust structure of a hydraulic cylinder according to claim 5, characterized in that: The length of the blocking plug (53) is 1.5 times the length of the groove (44). One end of the spring (54) abuts against the blocking plug (53) and the other end abuts against the second connecting container (55). The blocking plug (53) abuts against the bottom of the first connecting container (51) through the spring (54) and the second connecting container (55).