Electromagnetic pilot operated valve capable of being conveniently installed in butt joint mode

Abstract

The utility model belongs to the technical field of electromagnetic pilot valves, and particularly relates to an electromagnetic pilot valve convenient to butt-joint and install, which comprises a valve body, an electromagnetic adjusting mechanism and butt-joint pipes, the electromagnetic adjusting mechanism is installed at the top of the valve body, and the butt-joint pipes are communicated with two sides of the valve body. The surface of the butt joint pipe is sleeved with an inner threaded pipe, a rotating groove is formed in the inner wall of the inner threaded pipe, the outer surface, close to the rotating groove, of the butt joint pipe is connected with a rotating block, the end of the butt joint pipe is connected with a rubber ring, and an outer joint pipe is inserted into the rubber ring. According to the utility model, the external connecting pipe drives the limiting groove to be clamped on the surface of the rotating groove, then the internal threaded pipe is rotated, and at the moment, under the limiting action of the limiting groove and the limiting column, the internal threaded pipe is rotated to drive the thread to move in the direction close to the butt-joint pipe through the threaded connection relationship; at the moment, the butt joint pipe and the external pipe can be sealed through the rubber ring, and therefore butt joint installation of the external pipe can be conveniently achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic pilot valves, and particularly relates to an electromagnetic pilot valve which is convenient for butt joint installation. Background Technique

[0002] The electromagnetic pilot valve is a key component in the pilot-operated solenoid valve. The main valve of the pilot-operated solenoid valve is switched by air pressure, while the electromagnetic pilot valve is responsible for outputting the pilot pressure, and this pilot pressure then pushes the spool of the (pneumatically controlled) main valve to change direction.

[0003] The specific working process of the electromagnetic pilot valve is as follows: Energized state: When the electromagnetic pilot valve is energized, the valve stem is lifted by electromagnetic force and the pilot valve orifice is opened. At this time, the upper cavity of the solenoid valve is depressurized through the pilot hole, and a pressure difference with lower at the top and higher at the bottom is formed around the main spool. Under the action of the pressure difference, the fluid pressure pushes the main spool upward to open the main valve orifice; De-energized state: When the electromagnetic pilot valve is de-energized, under the action of the spring force and the gravity of the main spool, the valve stem resets, the pilot hole closes, the main spool moves downward, and the main valve orifice closes. At this time, the pressure in the upper cavity of the solenoid valve increases, and the fluid pressure pressurizes the main spool, providing better sealing.

[0004] The existing electromagnetic pilot valves are mainly fixed and connected using bolts during use. This connection method is not very convenient to operate. To maintain the sealing performance, great effort is required to tighten the bolts. During use, problems such as loosening and leakage are likely to occur. At the same time, the bolts are also prone to corrosion and wear after long-term use and need to be frequently replaced, increasing the maintenance cost. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electromagnetic pilot valve which is convenient for butt joint installation, aiming to solve the problems in the existing technology that the existing electromagnetic pilot valves are mainly fixed and connected using bolts during use. This connection method is not very convenient to operate. To maintain the sealing performance, great effort is required to tighten the bolts. During use, problems such as loosening and leakage are likely to occur. At the same time, the bolts are also prone to corrosion and wear after long-term use and need to be frequently replaced, increasing the maintenance cost.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An electromagnetic pilot valve which is convenient for butt joint installation, comprising a valve body, an electromagnetic adjustment mechanism and a butt joint pipe. The electromagnetic adjustment mechanism is installed on the top of the valve body, and the butt joint pipes are communicated and connected on both sides of the valve body;

[0007] The surface of the docking pipe is sleeved with an internally threaded pipe. A rotating groove is provided on the inner wall of the internally threaded pipe. A rotating block is connected to the outer surface of the docking pipe near the rotating groove. A rubber ring is connected to the end of the docking pipe. An outer connecting pipe is inserted into the rubber ring. Threads are connected to the surface of the outer connecting pipe. A limiting mechanism is provided between the docking pipe and the outer connecting pipe.

[0008] As an optimization of the electromagnetic pilot valve that can be conveniently docked and installed in the present utility model, the limiting mechanism includes a limiting post and a limiting groove. Two limiting posts are connected to the inner wall of the docking pipe. A limiting groove is provided at the end of the outer connecting pipe near the limiting post.

[0009] In order to realize the docking and installation of the outer connecting pipes on both sides, as an optimization of the electromagnetic pilot valve that can be conveniently docked and installed in the present utility model, the internally threaded pipe, the rotating groove, the rotating block, the rubber ring, the outer connecting pipe and the threads are symmetrically arranged on both sides of the valve body.

[0010] In order to limit the movement direction of the internally threaded pipe, as an optimization of the electromagnetic pilot valve that can be conveniently docked and installed in the present utility model, a rotating structure is formed between the internally threaded pipe and the rotating block through the rotating groove.

[0011] In order to limit the movement direction of the outer connecting pipe, as an optimization of the electromagnetic pilot valve that can be conveniently docked and installed in the present utility model, a sliding connection is formed between the outer connecting pipe and the limiting post through the limiting groove.

[0012] In order to realize the docking and installation of the outer connecting pipe, as an optimization of the electromagnetic pilot valve that can be conveniently docked and installed in the present utility model, a threaded connection is formed between the threads and the internally threaded pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] In the present utility model, first, the outer connecting pipe is inserted into the internally threaded pipe. Then, the outer connecting pipe drives the limiting groove to be stuck on the surface of the rotating groove. When the outer connecting pipe drives the threads to move to the opening of the internally threaded pipe, the internally threaded pipe can be rotated at this time. When the internally threaded pipe is subjected to a force, it can drive the rotating groove to rotate on the surface of the rotating block. At this time, under the limiting action of the limiting groove and the limiting post, rotating the internally threaded pipe can drive the threads to move towards the direction close to the docking pipe through the threaded connection relationship. When one side of the outer connecting pipe moves to the surface of the rubber ring, the rubber ring can be used to seal between the docking pipe and the outer connecting pipe at this time, so that the docking and installation of the outer connecting pipe can be conveniently realized;

[0015] At the same time, since the fixation is sealed by the rubber ring, the connection part can be prevented from being eroded by the internally transmitted gas or liquid and leaking, improving the safety of equipment use. Description of the Drawings

[0016] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the description. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0018] Figure 2 is a schematic structure diagram of the electromagnetic pilot valve of the present utility model;

[0019] Figure 3 is an exploded structure diagram of the electromagnetic pilot valve of the present utility model;

[0020] Figure 4 is a cross-sectional view of the docking structure of the docking pipe and the outer docking pipe of the present utility model.

[0021] In the figure: 1, valve body; 2, electromagnetic adjustment mechanism; 3, docking pipe; 4, internal threaded pipe; 5, rotating groove; 6, rotating block; 7, limiting column; 8, rubber ring; 9, outer docking pipe; 10, limiting groove; 11, thread. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides the following technical solutions: An electromagnetic pilot valve that can be conveniently docked and installed, including a valve body 1, an electromagnetic adjustment mechanism 2 and a docking pipe 3. The electromagnetic adjustment mechanism 2 is installed on the top of the valve body 1, and the docking pipes 3 are connected and communicated on both sides of the valve body 1;

[0024] The surface of the docking pipe 3 is sleeved with an internal threaded pipe 4. The inner wall of the internal threaded pipe 4 is provided with a rotating groove 5. The outer surface of the docking pipe 3 near the rotating groove 5 is connected with a rotating block 6. The end of the docking pipe 3 is connected with a rubber ring 8. The outer docking pipe 9 is inserted into the rubber ring 8. The surface of the outer docking pipe 9 is connected with a thread 11. A limiting mechanism is provided between the docking pipe 3 and the outer docking pipe 9.

[0025] Preferably: The limiting mechanism includes a limiting column 7 and a limiting groove 10. Two limiting columns 7 are connected to the inner wall of the docking pipe 3, and a limiting groove 10 is opened at the end of the outer docking pipe 9 near the limiting column 7.

[0026] Preferably, the internal threaded pipe 4, the rotating groove 5, the rotating block 6, the rubber ring 8, the external connecting pipe 9 and the thread 11 are symmetrically arranged on both sides of the valve body 1.

[0027] Preferably, a rotating structure is formed between the internal threaded pipe 4 through the rotating groove 5 and the rotating block 6.

[0028] During specific use, when the internal threaded pipe 4 is subjected to a force, it can drive the rotating groove 5 to rotate on the surface of the rotating block 6.

[0029] Preferably, a sliding connection is formed between the external connecting pipe 9 through the limiting groove 10 and the limiting post 7.

[0030] During specific use, under the limiting action of the limiting groove 10 and the limiting post 7, rotating the internal threaded pipe 4 can drive the thread 11 to move towards the docking pipe 3 through the thread connection relationship.

[0031] Preferably, a threaded connection is formed between the thread 11 and the internal threaded pipe 4.

[0032] During specific use, the internal threaded pipe 4 can drive the thread 11 to move towards the docking pipe 3 through the thread connection relationship. When one side of the external connecting pipe 9 moves to the surface of the rubber ring 8, at this time, sealing can be achieved between the docking pipe 3 and the external connecting pipe 9 through the rubber ring 8.

[0033] Working principle of implementation: When using this electromagnetic pilot valve that can be conveniently docked and installed, first insert the external connecting pipe 9 into the internal threaded pipe 4. Then, the external connecting pipe 9 drives the limiting groove 10 to be stuck on the surface of the rotating groove 5. When the external connecting pipe 9 drives the thread 11 to move to the opening of the internal threaded pipe 4, at this time, the internal threaded pipe 4 can be rotated. When the internal threaded pipe 4 is subjected to a force, it can drive the rotating groove 5 to rotate on the surface of the rotating block 6. At this time, under the limiting action of the limiting groove 10 and the limiting post 7, rotating the internal threaded pipe 4 can drive the thread 11 to move towards the docking pipe 3 through the thread connection relationship. When one side of the external connecting pipe 9 moves to the surface of the rubber ring 8, at this time, sealing can be achieved between the docking pipe 3 and the external connecting pipe 9 through the rubber ring 8, thereby realizing the docking and installation of the external connecting pipe 9.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electromagnetic pilot valve that can be conveniently docked and installed, comprising a valve body (1), an electromagnetic regulating mechanism (2) and a docking pipe (3), characterized in that: An electromagnetic regulating mechanism (2) is installed on the top of the valve body (1), and both sides of the valve body (1) are connected to butt pipes (3); The surface of the butt joint pipe (3) is sleeved with an internal threaded pipe (4), the inner wall of the internal threaded pipe (4) is provided with a rotation groove (5), the outer surface of the butt joint pipe (3) near the rotation groove (5) is connected with a rotation block (6), the end of the butt joint pipe (3) is connected with a rubber ring (8), the interior of the rubber ring (8) is plugged with an external pipe (9), the surface of the external pipe (9) is connected with a thread (11), and a limiting mechanism is provided between the butt joint pipe (3) and the external pipe (9).

2. The electromagnetic pilot valve that can be conveniently docked and installed according to claim 1 is characterized in that: The limiting mechanism comprises a limiting column (7) and a limiting groove (10); the inner wall of the butt tube (3) is connected to two limiting columns (7); and the end of the external tube (9) close to the limiting column (7) is provided with a limiting groove (10).

3. The electromagnetic pilot valve that can be conveniently docked and installed according to claim 2 is characterized in that: The internal threaded tube (4), the rotating groove (5), the rotating block (6), the rubber ring (8), the external tube (9) and the thread (11) are symmetrically arranged on both sides of the valve body (1).

4. The electromagnetic pilot valve that can be conveniently docked and installed according to claim 2 is characterized in that: The internally threaded tube (4) forms a rotating structure through the rotating groove (5) and the rotating block (6).

5. The electromagnetic pilot valve that can be conveniently docked and installed according to claim 2 is characterized in that: The external pipe (9) is slidably connected to the limiting column (7) via the limiting groove (10).

6. The electromagnetic pilot valve that can be conveniently docked and installed according to claim 2, characterized in that: A threaded connection is formed between the thread (11) and the internal threaded pipe (4).

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