Normally-open piston type electromagnetic valve

Abstract

The utility model relates to the technical field of electromagnetic valves, and discloses a normally open piston type electromagnetic valve which comprises a valve body, adjusting pipes are installed at the two ends of the valve body, baffle rings are fixedly connected to the outer walls of the two ends of each adjusting pipe, threaded sleeves are slidably connected to the outer walls of the adjusting pipes, and one threaded sleeve on each adjusting pipe is in threaded connection with the outer wall of the end of the valve body. Round sleeves are integrally formed in the middles of the adjusting pipes, a flow dividing pipe is fixedly communicated between the round sleeves on the two adjusting pipes, and a multi-way valve unit is installed in the round sleeves and controls the valve body and the flow dividing pipe to be communicated with the adjusting pipes. The multi-way valve unit can independently control the adjusting pipe to be communicated with the valve body and the adjusting pipe to be communicated with the flow dividing pipe, when the valve body needs to be detached for overhauling, water flow in a pipeline can enter the flow dividing pipe along the adjusting pipe, is conveyed to the other adjusting pipe and finally enters the other pipeline, and the valve body can be detached for overhauling. The valve body can be disassembled and overhauled without cutting off water, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a normally open piston type electromagnetic valve. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics. They are basic automation components used to control fluids. They are actuators and are not limited to hydraulic and pneumatic. They are used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed. There are many types of solenoid valves, and different solenoid valves play a role in different positions in the control system. Solenoid valves are normally open and normally closed. When the electromagnetic coil is energized, the valve core (piston plug) of the normally open solenoid valve is closed. When the electromagnetic coil is energized, the valve core (piston plug) of the normally closed solenoid valve is opened. The piston solenoid valve is a switch fluid control element that relies on the electromagnetic coil to generate electromagnetic force to drive the valve. It is one of the commonly used actuators in the pipeline control process.

[0003] The prior art, such as the patent with publication number CN113374873A, discloses a normally open piston solenoid valve, including a valve body, an internal plug-in connection of a main valve cover component of the valve body, an electromagnetic coil component is arranged above the main valve cover component, the internal plug-in connection of the electromagnetic coil component is connected with a rotary cover component, the internal plug-in connection of the rotary cover component is connected with a push rod, the bottom of the main valve cover component is fixedly connected with a valve cover gasket, the main valve cover component includes a main valve cover, a hole retaining ring and a main valve core retaining cover are arranged inside the main valve cover, the hole retaining ring and the main valve core retaining cover are internally plug-in connected with a small pilot valve core, a plug hole is provided at the lower part of one side of the small pilot valve core, and a pin is internally plug-in connected with the plug hole. The invention can reduce the shock of the piston solenoid valve by providing the main valve core seal, the main valve core gasket, the return spring and the sealing ring, thereby avoiding reducing the service life of the solenoid valve.

[0004] The existing technology still has shortcomings:

[0005] Both ends of the valve body of the solenoid valve in the above-mentioned prior art are connected to the pipeline. When the solenoid valve is disassembled for maintenance, the water transported in the pipeline must be stopped before the solenoid valve can be removed from the pipeline for maintenance, which is not conducive to the maintenance operation and affects the water transport. For this reason, a normally open piston solenoid valve is proposed. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a normally open piston type solenoid valve, which can realize disassembly and maintenance of the solenoid valve without stopping water.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a normally open piston solenoid valve, including a valve body, adjusting tubes are installed at both ends of the valve body, the outer walls of both ends of the adjusting tube are fixedly connected with retaining rings, the outer wall of the adjusting tube is slidably connected with a threaded sleeve, one of the threaded sleeves on the adjusting tube is threadedly connected to the outer wall of the end of the valve body, a round sleeve is integrally formed in the middle of the adjusting tube, a shunt pipe is fixedly connected between the round sleeves on the two adjusting tubes, a multi-directional valve unit is installed in the round sleeve, and the multi-directional valve unit respectively controls the valve body and the shunt pipe to be connected with the adjusting pipe.

[0008] Preferably, the multi-way valve unit includes a sealing sleeve fixedly mounted on the outer wall of the circular sleeve, a connecting rod is rotatably connected inside the sealing sleeve, a turning handle is fixedly connected to the upper end of the connecting rod, the lower end of the connecting rod is passed through the circular sleeve and fixedly connected to a ball valve, a connecting hole and a perforation are provided on the outer wall of the ball valve, the perforation passes through the ball valve, and the connecting hole is perpendicular to and connected to the perforation.

[0009] Preferably, two positioning blocks are fixedly connected to the outer wall of the sealing sleeve, and a stopper is fixedly connected to the bottom surface of the turning handle, and the stopper is located between the two positioning blocks.

[0010] Preferably, sealing rings are fixedly connected to the outer walls at both ends of the valve body, and the threaded sleeve abuts against the side walls of the sealing ring.

[0011] Preferably, the outer wall of the threaded sleeve is a regular hexagonal structure.

[0012] Preferably, the inner diameter of the shunt tube is equal to the inner diameters of the connecting hole and the through hole.

[0013] Preferably, an arc-shaped guide block is fixedly connected to the inner wall of one end of the regulating tube away from the valve body, and the arc-shaped guide block corresponds to the connecting hole and the through hole.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model can independently control the communication between the regulating pipe and the valve body and the regulating pipe and the shunt pipe through the multi-way valve unit. When the valve body needs to be removed for maintenance, the water flow in the pipeline can enter the shunt pipe along the regulating pipe and be transported to another regulating pipe, and finally enter another pipeline, so that the valve body can be removed for maintenance, and the valve body can be disassembled for maintenance without stopping the water, thereby improving practicality.

[0016] 2. The multi-directional valve unit of the utility model is mainly composed of a ball valve, on which a connecting hole and a through hole are arranged. When the connecting hole is turned away from the diversion pipe and the connecting hole is turned perpendicular to the valve body, water can flow through the valve body. When the connecting hole is turned to be horizontally perpendicular to the valve body and the through hole is turned to be perpendicular to the valve body, water flows into the through hole through the connecting hole and is then transported to the diversion pipe, and the connection between the regulating pipe and the valve body is sealed to realize the diversion and transportation of the water flow, so that the valve body can be disassembled for maintenance, and a single ball valve is used to realize multi-directional transportation of the water flow, thereby improving practicality.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the shunt pipe, the regulating pipe and the round sleeve of the utility model;

[0020] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0021] Figure 4 This is a schematic diagram of the valve body structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the shunt pipe and the ball valve of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the ball valve of the utility model.

[0024] In the figure: 1. valve body; 2. adjusting tube; 3. round sleeve; 4. diverter tube; 5. multi-way valve unit; 51. sealing sleeve; 52. connecting rod; 53. turning handle; 54. ball valve; 55. connecting hole; 56. through hole; 6. retaining ring; 7. threaded sleeve; 8. positioning block; 9. stopper; 10. sealing ring; 11. arc guide block. DETAILED DESCRIPTION

[0025] 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 technical field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The normally open piston solenoid valve of this embodiment includes a valve body 1, with regulating tubes 2 installed at both ends of the valve body 1, and retaining rings 6 are fixedly connected to the outer walls of both ends of the regulating tube 2. A threaded sleeve 7 is slidably connected to the outer wall of the regulating tube 2. One of the threaded sleeves 7 on the regulating tube 2 is threadedly connected to the outer wall of the end of the valve body 1. A round sleeve 3 is integrally formed in the middle of the regulating tube 2. A shunt pipe 4 is fixedly connected between the round sleeves 3 on the two regulating tubes 2. A multi-directional valve unit 5 is installed in the round sleeve 3. The multi-directional valve unit 5 controls the valve body 1 and the shunt pipe 4 to be connected to the regulating tube 2 respectively.

[0027] like Figure 1 , 2 As shown in Figures 5 and 6, the structure of the solenoid valve in the utility model is similar to that of the existing solenoid valve, such as a normally open piston type solenoid valve disclosed in the patent with publication number CN113374873A. The main improvement of the utility model is to realize the non-stop water supply and disassemble and repair the solenoid valve. When installing the utility model, align the two ends of the valve body 1 with the adjacent ends of the two shunt pipes 4, move the threaded sleeve 7, and make the threaded sleeve 7 and the end of the valve body 1 threadedly connected, and use the retaining ring 6 to restrict the threaded sleeve 7 so that it will not slip out of the shunt pipe 4. At this time, align the outer ends of the two regulating pipes 2 with the two connected pipes respectively, and then The threaded sleeve 7 at the outer end of the regulating tube 2 is connected to the pipeline thread to achieve installation. When the water flows normally, it first enters one of the regulating tubes 2, then enters the valve body 1, and is finally transported to the other pipeline through the other regulating tube 2; when the valve body 1 needs to be dismantled for inspection and maintenance, the multi-directional valve unit 5 can be used to control the valve body 1 and the regulating tube 2 to be closed, and the diverter tube 4 can be connected to the regulating tube 2 through the circular sleeve 3, so that the water flows into one of the regulating tubes 2, and then enters the diverter tube 4 to be transported to the other regulating tube 2, so that the water flows over the valve body 1 for transportation, and then the valve body 1 can be dismantled for inspection and maintenance without stopping the water supply, thereby improving practicality.

[0028] like Figure 1 , 2As shown in Figures 5 and 6, the multi-way valve unit 5 includes a sealing sleeve 51 fixedly mounted on the outer wall of the circular sleeve 3, a connecting rod 52 is rotatably connected in the sealing sleeve 51, a turning handle 53 is fixedly connected to the upper end of the connecting rod 52, the lower end of the connecting rod 52 is passed through the circular sleeve 3 and fixedly connected to a ball valve 54, a connecting hole 55 and a through hole 56 are opened on the outer wall of the ball valve 54, the through hole 56 passes through the ball valve 54, and the connecting hole 55 is perpendicular to and connected to the through hole 56; by rotating the turning handle 53, the turning handle 53 drives the connecting rod 52 to rotate in the sealing sleeve 51, the sealing sleeve 51 seals the connecting rod 52, and the connecting rod 52 drives the ball valve 54 in the circular sleeve 3, when the ball valve 54 drives the through hole 56 to rotate to the level with the valve body 1, and the connecting hole 55 is far away from the shunt pipe 4, the water flows through the through hole 56 into the valve body 1 and flows; when the ball valve 54 drives the through hole 56 to rotate to be vertical with the valve body 1 and the connecting hole 55 rotates to the level with the valve body 1, and the opening of the connecting hole 55 is far away from the side of the valve body 1, the water flows into the through hole 56 through the connecting hole 55, and then enters the shunt pipe 4 along the through hole 56. At the same time, the ball valve 54 seals the connection between the regulating pipe 2 and the valve body 1. At this time, the valve body 1 can be dismantled, and two communication modes are realized by a single ball valve 54, thereby improving practicality.

[0029] like Figure 3 As shown, the outer wall of the sealing sleeve 51 is fixedly connected to two positioning blocks 8, and the bottom surface of the turning handle 53 is fixedly connected to a stopper 9, and the stopper 9 is located between the two positioning blocks 8; when the turning handle 53 is rotated, when the positioning block 8 is rotated to contact the stopper 9, the regulating pipe 2 is connected to the diverter pipe 4 or the valve body 1, and then the ball valve 54 is positioned, which is convenient for adjusting the flow path of the water flow.

[0030] like Figure 4 As shown, sealing rings 10 are fixedly connected to the outer walls of both ends of the valve body 1, and the threaded sleeve 7 abuts against the side walls of the sealing ring 10. When the threaded sleeve 7 is connected to the valve body 1, the sealing ring 10 blocks and seals the threaded sleeve 7 to improve the sealing performance and connection strength.

[0031] like Figure 1 , 2 As shown, the outer wall of the threaded sleeve 7 is a regular hexagonal structure; the threaded sleeve 7 with a regular hexagonal structure can be rotated by a handle, which is convenient for disassembly and assembly.

[0032] like Figure 5 As shown, the inner diameter of the diverter pipe 4 is equal to the inner diameters of the connecting hole 55 and the through hole 56, so that the water entering the diverter pipe 4 can flow smoothly, ensuring the flow rate of the water flow.

[0033] like Figure 5As shown, an arc guide block 11 is fixedly connected to the inner wall of one end of the regulating tube 2 away from the valve body 1, and the arc guide block 11 corresponds to the connecting hole 55 and the perforation 56; the arc guide block 11 can guide the water entering the regulating tube 2, so that the water enters the connecting hole 55 or the perforation 56 along the arc guide block 11, reducing the obstruction to the water flow rate.

[0034] The implementation steps in this embodiment are as follows: during installation, the two ends of the valve body 1 are aligned with the adjacent ends of the two shunt pipes 4, the threaded sleeve 7 is moved, and the threaded sleeve 7 is threadedly connected to the end of the valve body 1, and the threaded sleeve 7 is restricted by the retaining ring 6 so that it does not slip out of the shunt pipe 4. At this time, the outer ends of the two regulating pipes 2 are respectively aligned with the two connected pipes, and then the threaded sleeve 7 at the outer end of the regulating pipe 2 is threadedly connected to the pipe to achieve installation, and the turning handle 53 is turned, and the turning handle 53 drives the connecting rod 52 to rotate in the sealing sleeve 51, and the sealing sleeve 51 seals the connecting rod 52, and the connecting rod 52 drives the ball valve 54 in the round sleeve 3, when the ball valve 54 drives the through hole 56 to rotate to the level with the valve body 1, and the connecting hole 55 is away from the shunt pipe 4, the water flows through the through hole 56 into the valve body 1; when the valve body 1 needs to be dismantled for inspection and maintenance, the ball valve 54 is rotated to drive the through hole 56 to rotate to be vertical with the valve body 1 and the connecting hole 55 is rotated to the level with the valve body 1, and at the same time, when the opening of the connecting hole 55 is away from one side of the valve body 1, the water flows through the connecting hole 55 into the through hole 56, and then enters the shunt pipe 4 along the through hole 56, and at the same time, the ball valve 54 seals the connection between the regulating pipe 2 and the valve body 1, and the valve body 1 can be dismantled for inspection and maintenance.

[0035] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A normally open piston solenoid valve, comprising a valve body (1), characterized in that: An adjusting tube (2) is installed at both ends of the valve body (1), and the outer walls of both ends of the adjusting tube (2) are fixedly connected to retaining rings (6), and the outer wall of the adjusting tube (2) is slidably connected to a threaded sleeve (7), one of the threaded sleeves (7) on the adjusting tube (2) is threadedly connected to the outer wall of the end of the valve body (1), and a round sleeve (3) is integrally formed in the middle of the adjusting tube (2), and a shunt tube (4) is fixedly connected between the round sleeves (3) on the two adjusting tubes (2), and a multi-directional valve unit (5) is installed in the round sleeve (3), and the multi-directional valve unit (5) controls the valve body (1) and the shunt tube (4) to be connected to the adjusting tube (2) respectively.

2. A normally open piston type solenoid valve according to claim 1, characterized in that: The multi-way valve unit (5) comprises a sealing sleeve (51) fixedly mounted on the outer wall of the circular sleeve (3), a connecting rod (52) rotatably connected inside the sealing sleeve (51), a turning handle (53) fixedly connected to the upper end of the connecting rod (52), a ball valve (54) fixedly connected to the lower end of the connecting rod (52), a connecting hole (55) and a through hole (56) are formed on the outer wall of the ball valve (54), the through hole (56) passes through the ball valve (54), and the connecting hole (55) is perpendicular to and connected to the through hole (56).

3. A normally open piston type solenoid valve according to claim 2, characterized in that: The outer wall of the sealing sleeve (51) is fixedly connected to two positioning blocks (8), and the bottom surface of the turning handle (53) is fixedly connected to a stopper (9), which is located between the two positioning blocks (8).

4. A normally open piston type solenoid valve according to claim 1, characterized in that: The outer walls at both ends of the valve body (1) are fixedly connected with sealing rings (10), and the threaded sleeve (7) abuts against the side wall of the sealing ring (10).

5. A normally open piston type solenoid valve according to claim 1, characterized in that: The outer wall of the threaded sleeve (7) is a regular hexagonal structure.

6. A normally open piston type solenoid valve according to claim 2, characterized in that: The inner diameter of the shunt pipe (4) is equal to the inner diameters of the communicating hole (55) and the through hole (56).

7. A normally open piston type solenoid valve according to claim 2, characterized in that: An arc-shaped guide block (11) is fixedly connected to the inner wall of one end of the regulating tube (2) away from the valve body (1), and the arc-shaped guide block (11) corresponds to the communicating hole (55) and the through hole (56).

Images