Multi-stage sealing hydraulic valve

Abstract

The utility model relates to the field of hydraulic valves, and discloses a multistage sealing hydraulic valve which comprises a shell, two sets of connecting blocks are fixedly connected to the two sides of the shell, two sets of storage grooves are formed in the inner walls of the two sets of connecting blocks, a first connecting pipe is fixedly connected to the tops of the connecting blocks, and a second connecting pipe is fixedly connected to the bottom of the shell. A movable groove is formed in the middle of the inner wall of the shell; the adjusting mechanism comprises a connecting rod, and the connecting rod is located on the inner wall of the movable groove. The sliding block on the surface is driven to move through movement of the connecting rod, the sliding block closes the movable groove after moving in the movable groove, liquid entering the second connecting pipe flows and enters the other set of second connecting pipe through the movable groove, and therefore adjustment of the liquid conveying pipeline is completed. And through the multiple sets of second connecting pipes, the equipment can push the sliding block to move through hydraulic oil, then the conveying pipeline is adjusted according to the actual situation, and therefore the usability of the equipment is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valves, in particular to a multi-stage sealed hydraulic valve. Background Art

[0002] A hydraulic valve is an automated component operated by pressurized oil. It is controlled by the pressure oil of a pressure regulating valve and is usually used in combination with an electromagnetic pressure regulating valve. It can be used to remotely control the on / off of oil, gas, and water pipeline systems in hydropower stations. Some equipment requires multiple sets of liquid transport pipelines when using hydraulic valves to switch the liquid transport pipelines according to actual conditions, which requires the use of multi-stage sealed hydraulic valves. Therefore, the existing multi-stage sealed hydraulic valves have been continuously innovated and developed. Therefore, it can be seen that the current multi-stage sealed hydraulic valves basically meet people's needs, but there are still some problems.

[0003] For example, the patent document with the announcement number CN214093222U discloses a multi-stage sealing structure of a hydraulic valve group, a hydraulic valve group and engineering machinery, including a valve body and a process hole, the valve body is provided with a main channel, one end of the process hole is connected to the main channel, and is characterized in that the multi-stage sealing structure also includes a stepped hole, the aperture of the stepped hole is larger than the aperture of the process hole, and is connected to the other end of the process hole; the multi-stage sealing structure also includes a first seal and a second seal, the first seal is sealed with the hole wall of the process hole, and the second seal is sealed with the hole wall of the stepped hole. In the technical solution of the utility model, the process hole is sealed in the form of a multi-stage seal, that is, the first seal and the second seal are used for sealing, which avoids the problem of using a single seal for sealing in the related art, which has a poor sealing effect and is easy to cause oil leakage in the process hole when it is not installed correctly. Thereby, the sealing effect of the integrated valve group is enhanced, and the reliability and stability of the seal are improved. By setting the first seal and the second seal, the sealing effect of the integrated valve group is enhanced, and the reliability and stability of the seal are improved.

[0004] However, when the above-mentioned device is actually used, some equipment needs to use multiple sets of liquid transport pipelines when using hydraulic valves to switch the liquid transport pipelines according to actual conditions. The hydraulic valve relies on a one-way channel to transport the liquid, so it is difficult to switch the liquid transport pipeline according to actual conditions, which reduces the practicality of the equipment. Therefore, a multi-stage sealed hydraulic valve is urgently needed to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a multi-stage sealed hydraulic valve to solve the problem in the above background technology that it is difficult to switch the liquid transport pipeline according to the actual situation.

[0006] To achieve the above object, the utility model provides the following technical solution, which discloses a multi-stage sealed hydraulic valve, comprising a housing, two groups of connection blocks are fixedly connected to both sides of the housing, two groups of storage grooves are opened on the inner walls of the two groups of connection blocks, a first connection pipe is fixedly connected to the top of the connection block, a second connection pipe is fixedly connected to the bottom of the housing, and a movable groove is opened in the middle of the inner wall of the housing;

[0007] The adjusting mechanism comprises a connecting rod, wherein the connecting rod is located on the inner wall of the movable groove, a sliding block is fixedly connected to the surface of the connecting rod, and a sealing ring is fixedly connected to the surface of the sliding block.

[0008] As a preferred technical solution of the utility model, one end of the first connecting pipe is fixedly connected to a clamping plate, a surface of the clamping plate is threadedly connected to a ring, and an inner side wall of the clamping plate is fixedly connected to a rubber pad.

[0009] As a preferred technical solution of the utility model, both sides of the middle part of the connecting rod are fixedly connected to limit rings, and the limit rings are located on the inner wall of the movable groove.

[0010] As a preferred technical solution of the utility model, an E-shaped connecting groove is opened on the inner top wall of the shell, and the E-shaped connecting groove is connected with the top of the movable groove.

[0011] As a preferred technical solution of the utility model, the diameter of the inner wall of the movable groove is consistent with the diameter of the sealing ring, and the sliding block is located on the inner wall of the movable groove.

[0012] As a preferred technical solution of the utility model, the clamping plate is arc-shaped, and the diameter of the clamping plate is consistent with the diameter of the inner wall of the ring.

[0013] As a preferred technical solution of the utility model, the two ends of the connecting rod are located on one side of the two groups of storage grooves, and the connecting rod is slidably connected to the inner wall of the movable groove.

[0014] As a preferred technical solution of the utility model, the first connecting pipe is connected to the storage tank, and the movable tank is connected to the second connecting pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model allows hydraulic oil to enter the storage tank through the first connecting pipe to squeeze the two ends of the connecting rod, thereby pushing the connecting rod to move. The movement of the connecting rod drives the slider on the surface to move. After the slider moves in the movable groove, the movable groove is closed, so that the liquid entering the second connecting pipe flows through the movable groove into another group of second connecting pipes, thereby completing the adjustment of the liquid transportation pipeline. Multiple groups of second connecting pipes enable the equipment to push the movement of the slider through hydraulic oil, and then adjust the transportation pipeline according to actual conditions, thereby effectively improving the practicability of the equipment, and the sealing ring arranged on the surface of the slider can effectively isolate the movable groove, thereby achieving a multi-stage sealing effect.

[0017] 2. The utility model connects the hydraulic oil pipe to the first connecting pipe, and then rotates the ring. After the ring is rotated to the surface of the clamping plate, the rubber pad in the clamping plate fits against the hydraulic oil pipe and clamps it, thereby preventing the hydraulic oil pipe from falling off and the hydraulic oil from leaking due to excessive internal pressure during operation of the equipment, thereby improving the safety and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural stereogram of the device of the utility model;

[0019] Figure 2 It is a structural cross-sectional view of the equipment of the utility model;

[0020] Figure 3 This is the internal structure diagram of the utility model device;

[0021] Figure 4 This is a structural stereogram of the connecting rod of the utility model;

[0022] Figure 5 It is a structural stereogram of the first connecting pipe of the utility model.

[0023] In the figure: 1. outer shell; 2. connecting block; 3. storage tank; 4. first connecting pipe; 5. second connecting pipe; 6. movable groove; 7. connecting rod; 8. slider; 9. sealing ring; 10. splint; 11. collar; 12. rubber pad; 13. limit ring; 14. E-type connecting groove. DETAILED DESCRIPTION

[0024] 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 embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 , Figure 2 and Figure 4 , a multi-stage sealed hydraulic valve: comprising a housing 1, two groups of connecting blocks 2 are fixedly connected to both sides of the housing 1, two groups of storage grooves 3 are opened on the inner walls of the two groups of connecting blocks 2, a first connecting pipe 4 is fixedly connected to the top of the connecting block 2, a second connecting pipe 5 is fixedly connected to the bottom of the housing 1, and a movable groove 6 is opened in the middle of the inner wall of the housing 1;

[0026] The adjusting mechanism comprises a connecting rod 7 , which is located on the inner wall of the movable groove 6 , a sliding block 8 is fixedly connected to the surface of the connecting rod 7 , and a sealing ring 9 is fixedly connected to the surface of the sliding block 8 .

[0027] When using a multi-stage sealed hydraulic valve, first connect the hydraulic oil pipe to the first connecting pipe 4, and then connect the pipe that needs to transport liquid to the second connecting pipe 5. The pipe that transports liquid transports the liquid to the movable groove 6, and then transports it to another group of second connecting pipes 5 through the opening at the top of the movable groove 6, and then transports the liquid to another group of liquid transport pipes through the second connecting pipe 5 on the other side. The hydraulic oil pipe injects hydraulic oil into the first connecting pipe 4, and then enters the storage tank 3 through the first connecting pipe 4. The hydraulic oil entering the storage tank 3 pushes the connecting rod 7 to move. The movement of the connecting rod 7 drives the slider 8 on the surface to move. The slider 8 moves in the movable groove 6, thereby closing the single group of movable grooves 6, allowing the liquid to enter the other group of second connecting pipes 5 through the movable groove 6 on the other side, thereby switching the liquid transport pipeline, and then completing the adjustment of the liquid transport pipeline.

[0028] See also Figure 3 and Figure 5 One end of the first connecting pipe 4 is fixedly connected to a clamping plate 10 , a ring 11 is threadedly connected to the surface of the clamping plate 10 , and a rubber pad 12 is fixedly connected to the inner wall of the clamping plate 10 .

[0029] After the hydraulic oil pipe is connected to the first connecting pipe 4, the ring 11 is rotated. After the ring 11 is rotated to the surface of the clamp 10, the clamp 10 is restrained. After the clamp 10 is restrained, the internal rubber pad 12 is moved closer to the hydraulic oil pipe, so that the clamp 10 and the rubber pad 12 clamp and fix the hydraulic oil pipe.

[0030] See also Figures 2 to 3 , limit rings 13 are fixedly connected to both sides of the middle of the connecting rod 7, and the limit rings 13 are located on the inner wall of the movable groove 6. An E-type connecting groove 14 is opened on the inner top wall of the outer shell 1. The E-type connecting groove 14 is connected to the top of the movable groove 6. The diameter of the inner wall of the movable groove 6 is consistent with the diameter of the sealing ring 9, and the slider 8 is located on the inner wall of the movable groove 6.

[0031] The limiting rings 13 on both sides of the connecting rod 7 can limit the moving track and the maximum range of motion of the connecting rod 7, and the E-type connecting groove 14 can enable the hydraulic valve to adjust the transported liquid to the second connecting pipe 5 according to actual conditions.

[0032] See also Figures 2 to 3 The splint 10 is arc-shaped, and the diameter of the splint 10 is consistent with the diameter of the inner wall of the ring 11. The two ends of the connecting rod 7 are located on one side of the two groups of storage grooves 3, and the connecting rod 7 is slidably connected to the inner wall of the movable groove 6. The first connecting pipe 4 is connected to the storage groove 3, and the movable groove 6 is connected to the second connecting pipe 5.

[0033] The diameters of the splint 10 and the ring 11 are consistent, so that the ring 11 can be rotated to the surface of the splint 10. The two ends of the connecting rod 7 are located in the storage tank 3. The hydraulic oil can enter the storage tank 3 through the first connecting pipe 4, so that the hydraulic oil in the storage tank 3 can push one end of the connecting rod 7, thereby moving the connecting rod 7.

[0034] Working principle, when using a multi-stage sealed hydraulic valve, first connect the hydraulic oil pipe to the first connecting pipe 4 and then rotate the ring 11 to make the clamp 10 clamp and fix the hydraulic oil pipe, and then connect the three groups of liquid transport pipes to the second connecting pipe 5, and transport the liquid to the second connecting pipe 5 through the liquid transport pipe, and then transport the liquid to the movable groove 6 through the second connecting pipe 5, and finally transport it to another group of movable grooves 6 through the E-type connecting groove 14, and finally enter the other group of second connecting pipes 5 through the movable groove 6, thereby forming a U-shaped transport structure. When it is necessary to switch the liquid transport pipe, the connecting rod 7 is pushed to move by the hydraulic oil, thereby driving the slider 8 to block the single group of movable grooves 6, so that the liquid can enter the movable groove 6 that needs to be unblocked through the E-type connecting groove 14, and then enter the second connecting pipe 5 through the movable groove 6. The liquid finally enters the liquid transport pipe connected to the second connecting pipe 5 through the second connecting pipe 5, thereby completing the switching of the liquid transport pipeline.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A multi-stage sealed hydraulic valve, comprising a housing (1), characterized in that: Two groups of connection blocks (2) are fixedly connected to both sides of the shell (1); two groups of storage grooves (3) are provided on the inner walls of the two groups of connection blocks (2); a first connection pipe (4) is fixedly connected to the top of the connection block (2); a second connection pipe (5) is fixedly connected to the bottom of the shell (1); and a movable groove (6) is provided in the middle of the inner wall of the shell (1); The regulating mechanism comprises a connecting rod (7), wherein the connecting rod (7) is located on the inner wall of the movable groove (6), a sliding block (8) is fixedly connected to the surface of the connecting rod (7), and a sealing ring (9) is fixedly connected to the surface of the sliding block (8).

2. The multi-stage sealed hydraulic valve according to claim 1, characterized in that: One end of the first connecting tube (4) is fixedly connected to a clamping plate (10), a surface of the clamping plate (10) is threadedly connected to a collar (11), and an inner side wall of the clamping plate (10) is fixedly connected to a rubber pad (12).

3. The multi-stage sealed hydraulic valve according to claim 1, characterized in that: Limiting rings (13) are fixedly connected to both sides of the middle of the connecting rod (7), and the limiting rings (13) are located on the inner wall of the movable groove (6).

4. The multi-stage sealed hydraulic valve according to claim 1, characterized in that: An E-shaped connecting groove (14) is formed on the inner top wall of the outer shell (1), and the E-shaped connecting groove (14) is connected to the top of the movable groove (6).

5. The multi-stage sealed hydraulic valve according to claim 1, characterized in that: The diameter of the inner wall of the movable groove (6) is consistent with the diameter of the sealing ring (9), and the sliding block (8) is located on the inner wall of the movable groove (6).

6. The multi-stage sealed hydraulic valve according to claim 2, characterized in that: The clamping plate (10) is in an arc shape, and the diameter of the clamping plate (10) is consistent with the diameter of the inner wall of the collar (11).

7. The multi-stage sealed hydraulic valve according to claim 1, characterized in that: The two ends of the connecting rod (7) are located on one side of the two groups of storage grooves (3), and the connecting rod (7) is slidably connected to the inner wall of the movable groove (6).

8. The multi-stage sealed hydraulic valve according to claim 1, characterized in that: The first connecting pipe (4) is connected to the storage tank (3), and the movable tank (6) is connected to the second connecting pipe (5).

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