Electromagnetic valve with impact buffering device

Abstract

The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve with an impact buffering device, which comprises a valve body, an electromagnetic device, a buffering pipeline and a blocking cone. An electromagnetic device used for measuring the flow of fluid flowing through an inner cavity of the valve body is arranged on the valve body, the two symmetrical ends of the valve body are connected with buffering pipelines in a sliding connection mode, the buffering pipelines are communicated with the inner cavity of the valve body, blocking cones used for scattering the fluid are arranged in inner cavities of the buffering pipelines, and the tip ends of the blocking cones are opposite to the valve body. When fluid flows to the inner cavity of the valve body from the buffer pipeline, the blocking cone scatters the fluid so as to disperse the impact force of the fluid. Fluid flowing from the buffering pipeline to the inner cavity of the valve body is scattered through the blocking cone, so that the fluid flows to the valve body along the space between the outer wall of the blocking cone and the inner wall of the buffering pipeline, a large amount of fluid is prevented from intensively rushing into the inner cavity of the valve body, the acting force of impact of the fluid on the valve body is reduced, and the effect of buffering protection on the valve body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve with a buffering device. 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 hydraulics or pneumatics. They are used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used in conjunction with different circuits to achieve the desired control, and the control accuracy and flexibility can be guaranteed. There are many types of solenoid valves, and different solenoid valves play a role in different positions in the control system. The most commonly used are check valves, safety valves, directional control valves, speed regulating valves, etc.

[0003] When the solenoid valve is in use, in order to prevent the solenoid valve from being damaged by a large amount of fluid impacting the solenoid valve in an instant, it is usually necessary to install a buffer device to protect the valve body. Most of the existing buffer devices are equipped with a blocking plate before the fluid flows to the valve body. The blocking plate regulates the flow rate of the fluid flowing to the valve body, thereby reducing the impact force of the fluid on the valve body and protecting the valve body. However, this method is prone to damage to the blocking plate and reduces its service life.

[0004] Based on this, it is necessary to design a solenoid valve with a long service life and a buffering device. Utility Model Content

[0005] The technical solution of the utility model is: an electromagnetic valve with a buffer impact device, including a valve body, an electromagnetic device, a buffer pipe and a blocking cone, the valve body is provided with an electromagnetic device for measuring the fluid flow rate flowing through the inner cavity of the valve body, the buffer pipes are connected to the inner cavity of the valve body symmetrically at both ends by a sliding connection, the buffer pipes are connected to the inner cavity of the valve body, the inner cavity of the buffer pipe is provided with a blocking cone for breaking up the fluid, the tip of the blocking cone is facing away from the valve body, when the fluid flows from the buffer pipe to the inner cavity of the valve body, the blocking cone breaks up the fluid to disperse its impact force, thereby reducing the direct impact force of the fluid on the valve body.

[0006] In one of the embodiments, a buffer assembly is arranged between the sliding connection between the valve body and the buffer pipe, and the buffer assembly includes a guide protrusion and a buffer spring. No less than two guide protrusions are equidistantly arranged on the circumferential outer wall of the buffer pipe, and a slide groove adapted to the guide protrusion is provided on the inner wall where the valve body and the buffer pipe are connected. The guide protrusion slides in the slide groove, and a cavity is arranged between the end of the buffer pipe and the end of the horizontal end of the valve body. A buffer spring is arranged in the cavity. When the valve body is impacted by the fluid, the valve body swings horizontally along the buffer pipes at both ends thereof.

[0007] In one of the embodiments, pressure relief holes are provided at both ends of the valve body for releasing the gas pressure generated when the valve body swings horizontally along the outer wall of the buffer pipe.

[0008] In one of the embodiments, a sealing ring is provided at the connection between the outer wall of the buffer pipe and the inner wall of the valve body.

[0009] In one of the embodiments, it also includes an arc-shaped jacket and bolts. The arc-shaped jacket is arranged on the outer wall of one end of the buffer pipe away from the valve body, and the two arc-shaped jackets are connected to the buffer pipe by bolts.

[0010] In one of the embodiments, a rubber pad is provided on the inner wall of the arc-shaped jacket for increasing the friction coefficient between the arc-shaped jacket and the buffer pipe.

[0011] In one of the embodiments, a mounting seat is provided on the outer wall of the valve body for fixing the valve body.

[0012] Beneficial effects: 1. The blocking cone breaks up the fluid flowing from the buffer pipe to the inner cavity of the valve body, so that the fluid flows to the valve body along the outer wall of the blocking cone and the inner wall of the buffer pipe, thereby avoiding a large amount of fluid from rushing to the inner cavity of the valve body, thereby reducing the impact force of the fluid on the valve body, achieving the effect of buffering and protecting the valve body. The conical design of the blocking cone is conducive to extending its service life;

[0013] 2. After the valve body is subjected to the impact force of the fluid, the valve body slides horizontally along the guide protrusion through its slide groove and buffers the buffer spring. The elastic force of the buffer spring offsets the long impact force of the fluid, thereby further reducing the impact force of the fluid on the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the valve body and the buffer pipeline of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the valve body, slide groove, pressure relief hole and mounting seat of the utility model.

[0017] Markings in the figure are: 1-valve body, 2-electromagnetic device, 3-buffer pipe, 31-guide protrusion, 32-slide groove, 33-pressure relief hole, 4-buffer spring, 5-sealing ring, 6-blocking cone, 7-arc jacket, 71-bolt, 8-rubber pad, 9-mounting seat. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the protection scope and application scope of the present invention are not limited.

[0019] Embodiment: A solenoid valve with a shock buffer device, such as Figure 1 and Figure 2 As shown, it includes a valve body 1, an electromagnetic device 2, a buffer pipe 3 and a blocking cone 6. The valve body 1 is provided with an electromagnetic device 2 for measuring the fluid flow rate flowing through the inner cavity of the valve body 1. The outer wall of the valve body 1 is provided with a mounting seat 9 for fixing the valve body 1. The left and right symmetrical ends of the valve body 1 are connected with the buffer pipe 3 by a sliding connection. The buffer pipe 3 is connected to the inner cavity of the valve body 1. The inner diameter of the valve body 1 is larger than the outer diameter of the buffer pipe 3. The inner cavity of the buffer pipe 3 is provided with a blocking cone 6 for breaking up the fluid. The tip of the blocking cone 6 faces away from the valve body 1. The blocking cone 6 is arranged near the valve body 1. When the fluid flows from the buffer pipe 3 to the inner cavity of the valve body 1, the vertebral body of the blocking cone 6 impacts the fluid so that the fluid is broken up, thereby achieving the dispersion of the impact force of the fluid, thereby reducing the direct impact force of the fluid on the valve body 1, thereby achieving buffering protection for the valve body 1.

[0020] like Figure 2 and Figure 3 As shown, a buffer assembly is arranged between the sliding connection between the valve body 1 and the buffer pipe 3, and the buffer assembly includes a guide protrusion 31 and a buffer spring 4. Four guide protrusions 31 are equidistantly arranged on the circumferential outer wall of the buffer pipe 3, and four slide grooves 32 adapted to the guide protrusions 31 are opened on the inner wall where the valve body 1 and the buffer pipe 3 are connected. The guide protrusion 31 slides in the slide groove 32, and a cavity is arranged between the end of the buffer pipe 3 and the end of the horizontal end of the valve body 1. The buffer spring 4 is arranged in the cavity. When the valve body 1 is impacted by the fluid, the valve body 1 swings horizontally along the buffer pipes 3 at both ends thereof, and the buffer spring 4 offsets the impact force exerted on the valve body. At the same time, the valve body 1 reduces the direct impact force of the fluid on the valve body 1 by sliding horizontally along the buffer pipe 3.

[0021] like Figure 2 and Figure 3 As shown, pressure relief holes 33 for releasing the gas pressure generated when the valve body 1 swings horizontally along the outer wall of the buffer pipe 3 are opened at both ends of the valve body 1. When the valve body 1 moves horizontally along the outer wall of the buffer pipe 3, the gas in the inner cavity between the valve body 1 and the buffer pipe 3 will be squeezed, and the squeezed gas will be released through the pressure relief holes 33. At the same time, the outer wall gas enters the inner cavity through the pressure relief holes 33, and the gas pressure in the inner cavity is balanced through the pressure relief holes 33.

[0022] like Figure 2 As shown, a sealing ring 5 is provided at the connection between the outer wall of the buffer pipe 3 and the inner wall of the valve body 1 . The provision of the sealing ring 5 can prevent the fluid from leaking through the gap between the buffer pipe 3 and the valve body 1 .

[0023] like Figure 1As shown, it also includes an arc-shaped jacket 7 and a bolt 71. The arc-shaped jacket 7 is arranged on the outer wall of the end of the buffer pipe 3 away from the valve body 1. The two arc-shaped jackets 7 are sleeved on the buffer pipe 3 by bolts 71. The inner wall of the arc-shaped jacket 7 is provided with a rubber pad 8 for increasing the friction coefficient between the arc-shaped jacket 7 and the buffer pipe 3. The arrangement of the arc-shaped jacket 7 facilitates the effective connection between the buffer pipe 3 and the fluid pipe.

[0024] When in use, when the fluid flows from the buffer pipe 3 to the inner cavity of the valve body 1, the fluid is first dispersed by the vertebral body of the blocking cone 6 to avoid fluid concentration, so that the fluid flows to the valve body 1 along the outer wall of the blocking cone 6 and the inner wall of the buffer pipe 3, thereby avoiding a large amount of fluid from rushing to the inner cavity of the valve body 1, thereby reducing the impact of the fluid on the inner wall of the valve body 1, thereby achieving buffering protection for the valve body 1; after the fluid passes through the blocking and buffering of the blocking cone 6, the fluid then disperses and rushes to the inner wall of the valve body 1. After the valve body 1 is impacted by the fluid, the slide groove 32 on the inner wall of the valve body 1 slides horizontally along the guide protrusion 31, thereby making the valve body 1 move horizontally along the outer wall of the buffer pipe 3, and at the same time compressing the buffer spring 4, and the impact force is offset by the elastic force of the buffer spring 4, thereby further reducing the impact force of the fluid on the valve body 1, achieving buffering protection for the valve body 1, and thus protecting the electromagnetic device 2.

[0025] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the utility model concept of the present invention. Therefore, the protection scope of the present invention is not limited by the above embodiments.

Claims

1. A solenoid valve with a buffer device, comprising a valve body (1), an electromagnetic device (2) and a buffer pipe (3), wherein the valve body (1) is provided with an electromagnetic device (2) for measuring the flow rate of a fluid flowing through an inner cavity of the valve body (1), and the valve body (1) is symmetrically connected to the buffer pipe (3) at both ends by means of a sliding connection, and the buffer pipe (3) is communicated with the inner cavity of the valve body (1), characterized in that: The invention also comprises a blocking cone (6), wherein the inner cavity of the buffer pipe (3) is provided with a blocking cone (6) for breaking up the fluid, and the tip of the blocking cone (6) faces away from the valve body (1). When the fluid flows from the buffer pipe (3) to the inner cavity of the valve body (1), the blocking cone (6) breaks up the fluid to disperse its impact force, thereby reducing the direct impact force of the fluid on the valve body (1).

2. A solenoid valve with a shock buffer device as claimed in claim 1, characterized in that: A buffer assembly is provided between the sliding connection between the valve body (1) and the buffer pipe (3), and the buffer assembly includes a guide protrusion (31) and a buffer spring (4). No less than two guide protrusions (31) are equidistantly provided on the circumferential outer wall of the buffer pipe (3). A slide groove (32) adapted to the guide protrusion (31) is provided on the inner wall where the valve body (1) and the buffer pipe (3) are connected. The guide protrusion (31) slides in the slide groove (32). A cavity is provided between the end of the buffer pipe (3) and the end of the horizontal end of the valve body (1). A buffer spring (4) is provided in the cavity. When the valve body (1) is impacted by a fluid, the valve body (1) swings horizontally along the buffer pipes (3) at both ends thereof.

3. A solenoid valve with a shock buffer device as claimed in claim 2, characterized in that: Pressure relief holes (33) for releasing the gas pressure generated when the valve body (1) swings horizontally along the outer wall of the buffer pipe (3) are provided at both ends of the valve body (1).

4. The solenoid valve with a shock buffer device as claimed in claim 2, characterized in that: A sealing ring (5) is provided at the connection between the outer wall of the buffer pipe (3) and the inner wall of the valve body (1).

5. The solenoid valve with a shock buffer device as claimed in claim 1, characterized in that: It also includes an arc-shaped jacket (7) and a bolt (71). The arc-shaped jacket (7) is arranged on the outer wall of the end of the buffer pipe (3) away from the valve body (1). The two arc-shaped jackets (7) are sleeved on the buffer pipe (3) by the bolt (71).

6. A solenoid valve with a shock buffer device as claimed in claim 5, characterized in that: A rubber pad (8) is arranged on the inner wall of the arc-shaped jacket (7) for increasing the friction coefficient between the arc-shaped jacket (7) and the buffer pipe (3).

7. The solenoid valve with a shock buffer device as claimed in claim 1, characterized in that: A mounting seat (9) is provided on the outer wall of the valve body (1) for facilitating fixing of the valve body (1).

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