Anti-rust hydraulic valve block

Abstract

An anti-corrosion hydraulic valve block comprises a valve block body and an anti-corrosion pipe. A plurality of channels are formed in the valve block body and used for hydraulic oil to pass through. Limiting grooves are respectively formed in two ends of the channel on one side; the anti-corrosion pipe comprises a first clamping ring, a pipe wall and a second clamping ring. The first clamping ring and the second clamping ring are arranged at the two ends of the pipe wall respectively and clamped in the limiting grooves in the two ends of the channel respectively. The problems that a hydraulic valve block is prone to rust and corrosion in the working process, the sealing performance of the hydraulic valve block is affected, a channel is possibly blocked, in the high-temperature environment, the hydraulic valve block made of metal is prone to thermal expansion and deformation, and the stability and durability of the hydraulic valve block are further affected are solved.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic valves, and more specifically, to an anti-rust hydraulic valve block. Background Art

[0002] In a hydraulic system, as a key component for controlling the flow direction and flow rate of hydraulic oil, the performance and durability of a hydraulic valve block are crucial for the stable operation of the entire system. However, during use, the hydraulic valve block often faces problems of rust and high-temperature corrosion. These problems not only reduce the working efficiency of the valve block but may also cause system failures and even equipment damage.

[0003] Traditional hydraulic valve block designs usually use metal materials. Although metal has good strength and hardness, it is prone to rust and corrosion when in long-term contact with hydraulic oil, moisture, and corrosive substances in the working environment. Rust not only affects the sealing performance of the valve block but may also cause channel blockages, thereby affecting the fluidity of hydraulic oil and the response speed of the system. In addition, in a high-temperature environment, the metal hydraulic valve block is also prone to thermal expansion and deformation, further affecting the stability and durability of the valve block. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-rust hydraulic valve block, which solves the problems that the hydraulic valve block is prone to rust and corrosion during operation, affecting its sealing performance, and may also cause channel blockages. In a high-temperature environment, the metal hydraulic valve block is also prone to thermal expansion and deformation, further affecting its stability and durability.

[0005] The embodiments of the utility model are implemented through the following technical solutions:

[0006] An anti-rust hydraulic valve block, comprising:

[0007] A valve block body, on which several channels are provided for the passage of hydraulic oil; limiting grooves are respectively arranged at both ends of the channels on one side thereof;

[0008] An anti-corrosion pipe, comprising a first snap ring, a pipe wall, and a second snap ring; the first snap ring and the second snap ring are respectively arranged at both ends of the pipe wall and are respectively clamped in the limiting grooves at both ends of the channel.

[0009] An exhaust hole is also provided on the valve block body; one end of the exhaust hole communicates with the channel, and the other end communicates with one side surface of the valve block body.

[0010] The material of the anti-corrosion pipe is made of an elastic material that is corrosion-resistant and high-temperature-resistant.

[0011] The first snap ring is arranged in the limiting groove on one side surface of the valve block body, and a metal ring is arranged inside it.

[0012] The height of the first snap ring is slightly greater than the height of the limit groove on the side surface of the valve block body.

[0013] The elastic material includes nitrile rubber, fluororubber, silicone rubber, polytetrafluoroethylene or polyurethane.

[0014] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects:

[0015] A rust-proof hydraulic valve block of the present utility model has a valve block body made of a metal material to ensure the strength and hardness of the valve block; while in the channel part directly in contact with the hydraulic oil, we introduce a key component, the anti-corrosion pipe. The anti-corrosion pipe is made of an elastic material that is corrosion-resistant and high-temperature-resistant, and includes a first snap ring, a pipe wall, and a second snap ring. The first snap ring and the second snap ring are respectively arranged at both ends of the pipe wall and are clamped in the limit grooves at both ends of the channel, so as to realize the firm connection between the anti-corrosion pipe and the valve block body. A metal ring is also arranged inside the first snap ring to enhance the connection strength between the first snap ring and the limit groove, and can also prevent the elastic material from thermally expanding and deforming at high temperatures to a certain extent, so as to ensure the stability and durability of the anti-corrosion pipe. At the same time, an exhaust hole is also arranged on the valve block body, and one end of the exhaust hole communicates with the channel, and the other end communicates with the side surface of the valve block body. Such a design can ensure that the air between the channel and the anti-corrosion pipe can be discharged in time during the start-up or operation of the hydraulic system, thereby further improving its sealing performance; and the anti-corrosion pipe and the valve block body are connected in a split manner, which is convenient for disassembly and replacement, and further improves its durability. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the sectional view taken along line A-A in the attached Figure 1 drawing;

[0018] Figure 3 is the enlarged view at position B in the attached Figure 2 drawing;

[0019] Figure 4 is the structural schematic diagram of the anti-corrosion pipe;

[0020] Figure 5 is the sectional view of the anti-corrosion pipe.

[0021] In the figure, 1-valve block body, 101-channel, 102-mounting hole, 103-exhaust hole, 104-limit groove, 2-anti-corrosion pipe, 201-first snap ring, 202-pipe wall, 203-second snap ring, 204-metal ring. Detailed Embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0024] As Figures 1-5 shown, a rust-proof hydraulic valve block includes a valve block body 1 and a number of anti-corrosion pipes 2; a number of channels 101 are provided inside the valve block body 1, one of which is a main channel for the movement of the oil circuit control rod, and a number of branch channels are for the passage of hydraulic oil; and limiting grooves 104 are respectively provided at both ends of the branch channels for fixing the anti-corrosion pipes 2; the limiting grooves 104 are arranged around the inner side wall of the branch channels;

[0025] As Figure 4 and 5 shown, the anti-corrosion pipe 2 includes a first snap ring 201, a pipe wall 202, and a second snap ring 203; the pipe wall 202 is cylindrical and its two ends are connected; the first snap ring 201 and the second snap ring 203 are respectively connected around both ends of the pipe wall 202 and are respectively snapped into the limiting grooves 104 at both ends of the branch channels; the first snap ring 201 is snapped into the limiting groove 104 on one side surface of the valve block body 1, and a metal ring 204 is provided inside it to support the shape of the first snap ring 201 so that it can better cooperate with the limiting groove 104 and ensure the sealing performance of its connection; the height of the first snap ring 201 is slightly greater than the height of the limiting groove 104 on the side surface of the valve block body 1. When other devices are connected to the valve block body 1, the elastic performance of the first snap ring 201 is used to ensure the sealing performance of its connection; an exhaust hole 103 is also provided on the valve block body 1; one end of the exhaust hole 103 communicates with the channel 101, and the other end communicates with one side surface of the valve block body 1 for discharging the air between the channel 101 and the anti-corrosion pipe 2;

[0026] Specifically, a one-way valve is also provided inside the exhaust hole 103; its exhaust direction is towards one side surface of the valve block body 1;

[0027] More specifically, the material of the corrosion prevention pipe 2 is made of an elastic material that is corrosion-resistant and high-temperature resistant; the elastic material includes nitrile rubber, fluororubber, silicone rubber, polytetrafluoroethylene, or polyurethane; so that the corrosion prevention pipe 2 can adapt to the working environment of hydraulic oil.

[0028] The working principle of this embodiment is as follows:

[0029] For a rust-proof hydraulic valve block of the present utility model, when the corrosion prevention pipe 2 is installed inside the valve block body 1, the second snap ring 203 can be first inserted into its channel 101, and then pressed inward so that the second snap ring 203 is clamped in the limiting groove 104 inside the channel 101. Then, the first snap ring 201 is clamped in the limiting groove 104 on the side surface. Then, other devices can be installed on the valve block body 1, so that the first snap ring 201 is hermetically arranged between the two; when it works, the hydraulic oil passes through the corrosion prevention pipe 2, and by using its high-pressure environment, the corrosion prevention pipe 2 is pressed against the inner side wall of the channel 101, and the air between them is discharged through the exhaust hole 103, and the one-way valve inside it is used to ensure the seal between the corrosion prevention pipe 2 and the inner side wall of the channel 101; when replacement is needed, the other devices are removed from the hydraulic valve block to break the internal sealed environment, and then the corrosion prevention pipe 2 can be pulled out for replacement.

[0030] The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-rust hydraulic valve block, characterized in that, Comprising: A valve block body, on which several channels are provided for the passage of hydraulic oil; Limit grooves are respectively provided at both ends of the channels on one side thereof; An anti-corrosion pipe, including a first snap ring, a pipe wall and a second snap ring; the first snap ring and the second snap ring are respectively provided at both ends of the pipe wall and are respectively clamped in the limit grooves at both ends of the channel.

2. The anti-corrosion hydraulic valve block according to claim 1, wherein An exhaust hole is further provided on the valve block body; one end of the exhaust hole communicates with the channel and the other end communicates with one side surface of the valve block body.

3. The anti-rust hydraulic valve block according to claim 1, characterized in that, The anti-corrosion pipe is made of an elastic material resistant to corrosion and high temperature.

4. An anti-corrosion hydraulic valve block according to claim 1, characterized in that, The first snap ring is arranged in the limit groove on one side surface of the valve block body, and a metal ring is arranged inside it.

5. A rust-proof hydraulic valve block according to claim 4, characterized in that, The height of the first snap ring is slightly greater than the height of the limit groove on the side surface of the valve block body.

6. The anti-rust hydraulic valve block according to claim 3, characterized in that, The elastic material includes nitrile rubber, fluororubber, silicone rubber, polytetrafluoroethylene or polyurethane.

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