Electromagnetic valve with joint sealing structure

Abstract

The utility model discloses an electromagnetic valve with a joint sealing structure, which comprises an electromagnetic valve body, a connecting hole arranged on the electromagnetic valve body and a pneumatic joint in threaded connection with the connecting hole, a sealing gasket is sleeved on the pneumatic joint, the top of the sealing gasket is provided with an annular inclined surface, the bottom of the sealing gasket is provided with a conical bulge, and the conical bulge is provided with an annular inclined surface. A first chamfer is arranged on the edge of the top of the connecting hole, a sealing groove used for containing the sealing gasket is formed in the inner side wall of the pneumatic connector, the sealing gasket can be limited through the sealing groove, the first chamfer, the conical protrusion, the sealing conical face and the annular inclined face, and the situation that the sealing gasket deviates and influences the sealing effect is prevented; and the contact area between the sealing gasket and the pneumatic connector or the electromagnetic valve body can be increased, so that the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a solenoid valve with a joint sealing structure. Background Art

[0002] A solenoid valve is an industrial device that uses electromagnetic principles to control the flow of fluids. It is also a basic automation component used to control fluids. It is an actuator and is widely used in various industrial control systems that need to adjust the direction, flow, speed and other parameters of the medium. The connector on the solenoid valve is connected by threads, and a sealing ring is installed between the connector and the solenoid valve for sealing to prevent fluid leakage.

[0003] The sealing ring on the existing electromagnet connector is usually an O-ring. The O-ring has a poor fit with the solenoid valve and the connector, and the limiting effect on the O-ring is weak, which makes it easy for the O-ring to shift during the tightening of the connector, resulting in poor sealing effect. Utility Model Content

[0004] The purpose of the utility model is to provide a solenoid valve with a joint sealing structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solenoid valve with a joint sealing structure, comprising a solenoid valve body, a connecting hole arranged on the solenoid valve body, and a pneumatic joint threadedly connected to the connecting hole, the pneumatic joint being sleeved with a sealing gasket, the top of the sealing gasket being provided with an annular inclined surface, the bottom of the sealing gasket being provided with a conical protrusion, the top edge of the connecting hole being provided with a first chamfer, and the inner side wall of the pneumatic joint being provided with a sealing groove for accommodating the sealing gasket.

[0006] As a preferred solution of the utility model, a sealing cone surface is provided on the pneumatic joint and located inside the sealing groove.

[0007] As a preferred solution of the utility model, the outer edge of the sealing gasket is provided with a second chamfer.

[0008] As a preferred solution of the present invention, the sealing gasket and the conical protrusion are an integrally formed structure.

[0009] As a preferred solution of the utility model, the sealing pad and the conical protrusion are both made of rubber.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can limit the sealing gasket by setting the sealing groove, the first chamfer, the conical protrusion, the sealing cone surface and the annular inclined surface, thereby preventing the sealing gasket from shifting and affecting the sealing effect, and can also increase the contact area between the sealing gasket and the pneumatic joint or the solenoid valve body, thereby improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 For this utility model Figure 1 Exploded diagram of

[0013] Figure 3 It is a front cross-sectional view of the utility model;

[0014] Figure 4 For this utility model Figure 3 The enlarged view of point A in the middle;

[0015] Figure 5 This is a schematic diagram of the structure of the sealing gasket of the utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the pneumatic connector of the utility model;

[0017] Figure 7 It is a front cross-sectional view of a solenoid valve body in the prior art;

[0018] Figure 8 For this utility model Figure 7 Enlarged view of point B in the middle.

[0019] In the figure: 1, solenoid valve body; 2, pneumatic joint; 3, sealing gasket; 4, annular inclined surface; 5, first chamfer; 6, connecting hole; 7, sealing cone surface; 8, sealing groove; 9, conical protrusion; 10, second chamfer. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 8The utility model provides a technical solution: a solenoid valve with a joint sealing structure, comprising a solenoid valve body 1, a connecting hole 6 arranged on the solenoid valve body 1, and a pneumatic joint 2 threadedly connected to the connecting hole 6, a sealing gasket 3 is sleeved on the pneumatic joint 2, and the cross section of the sealing gasket 3 is non-circular, so that the sealing gasket 3 can better fit with the solenoid valve body 1 and the pneumatic joint 2 to avoid the deviation of the sealing gasket 3, the top of the sealing gasket 3 is provided with an annular inclined surface 4, the bottom of the sealing gasket 3 is provided with a conical protrusion 9, and the top edge of the connecting hole 6 A first chamfer 5 is provided, and the first chamfer 5 cooperates with the conical protrusion 9 to increase the contact area between the sealing gasket 3 and the solenoid valve body 1 to improve the sealing performance, and the solenoid valve body 1 can better limit the sealing gasket 3 to prevent the sealing gasket 3 from shifting. The inner wall of the pneumatic joint 2 is provided with a sealing groove 8 for accommodating the sealing gasket 3. The sealing groove 8 can not only limit the sealing gasket 3 to prevent the sealing gasket 3 from shifting and affecting the sealing effect, but also increase the contact area between the sealing gasket 3 and the pneumatic joint 2 to improve the sealing effect.

[0022] Among them, a sealing cone surface 7 is provided on the pneumatic joint 2 and inside the sealing groove 8. The sealing cone surface 7 is used to cooperate with the annular inclined surface 4 to increase the contact area between the sealing gasket 3 and the pneumatic joint 2, thereby improving the sealing effect of the sealing gasket 3.

[0023] The outer edge of the sealing gasket 3 is provided with a second chamfer 10 , and the second chamfer 10 is used to guide the sealing gasket 3 so that the sealing gasket 3 can be more easily installed into the sealing groove 8 .

[0024] The sealing gasket 3 and the conical protrusion 9 are an integrally formed structure, which is simple and reliable and convenient to produce.

[0025] Among them, the material of the sealing gasket 3 and the conical protrusion 9 is rubber. Rubber has excellent elasticity and deformation ability, and can quickly restore its original shape under pressure. This characteristic enables rubber to form a tight seal between contact surfaces, fill surface unevenness and tiny gaps, prevent medium leakage, and has good wear resistance. It can form a durable seal between contact surfaces and maintain a stable sealing effect during long-term use.

[0026] Specifically, when installing the pneumatic joint 2, the sealing gasket 3 is first placed on the connecting hole 6, and the conical protrusion 9 is in contact with the first chamfer 5, which plays a certain limiting role on the sealing gasket 3. When the pneumatic joint 2 is rotated and installed and tightened, the sealing gasket 3 will enter the sealing groove 8, and the sealing gasket 3 will be limited again, thereby preventing the sealing gasket 3 from being dislocated during the rotating installation process of the pneumatic joint 2, affecting the sealing effect. After the pneumatic joint 2 is installed, the pneumatic joint 2 will squeeze the sealing gasket 3, so that the annular inclined surface 4 is tightly fitted into the sealing cone surface 7, the conical protrusion 9 is tightly fitted into the first chamfer 5, and the sealing gasket 3 is tightly fitted into the sealing groove 8, so as to improve the sealing effect of the sealing gasket 3.

[0027] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0029] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solenoid valve with a joint sealing structure, comprising a solenoid valve body (1), a connecting hole (6) provided on the solenoid valve body (1), and a pneumatic joint (2) threadedly connected to the connecting hole (6), characterized in that: The pneumatic joint (2) is provided with a sealing gasket (3), the top of the sealing gasket (3) is provided with an annular inclined surface (4), the bottom of the sealing gasket (3) is provided with a conical protrusion (9), the top edge of the connecting hole (6) is provided with a first chamfer (5), and the inner side wall of the pneumatic joint (2) is provided with a sealing groove (8) for accommodating the sealing gasket (3).

2. The solenoid valve with a joint sealing structure according to claim 1, characterized in that: A sealing cone surface (7) is provided on the pneumatic joint (2) and is located inside the sealing groove (8).

3. The solenoid valve with a joint sealing structure according to claim 1, characterized in that: The outer edge of the sealing gasket (3) is provided with a second chamfer (10).

4. The solenoid valve with a joint sealing structure according to claim 1, characterized in that: The sealing pad (3) and the conical protrusion (9) are an integrally formed structure.

5. The solenoid valve with a joint sealing structure according to claim 1, characterized in that: The sealing pad (3) and the conical protrusion (9) are both made of rubber.

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