Electromagnetic vacuum belt inflation valve with good air tightness

Abstract

The utility model discloses an electromagnetic vacuum belt inflation valve with good air tightness, and relates to the technical field of electromagnetic vacuum belt inflation valves, the electromagnetic vacuum belt inflation valve comprises a valve body, a valve pipe and a sealing connection assembly, the valve pipe is fixed below the valve body, and the lower side and the outer side of the valve pipe are respectively connected with a first connecting pipe and a second connecting pipe; and the other end of the first connecting pipe and the other end of the second connecting pipe are each provided with a sealing connection assembly, each sealing connection assembly comprises a fixed outer pipe, outer flanges, a fixed inner pipe, a sealing ring, a screen frame, a filter screen and a locking bolt, and the outer flanges are fixed to the two sides of the outer portion of each fixed outer pipe. According to the electromagnetic vacuum inflation valve with the good air tightness, due to the double-pipeline arrangement of the fixed outer pipe and the fixed inner pipe, on one hand, the structural strength can be enhanced, and on the other hand, the sealing rings distributed at the two ends of the fixed inner pipe at equal intervals can be matched with the pipe body and the first supporting convex ring and the second supporting convex ring of the fixed outer pipe correspondingly, and the multiple sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic vacuum belt inflation valves, and particularly relates to an electromagnetic vacuum belt inflation valve with good air tightness. Background Technique

[0002] The electromagnetic vacuum belt inflation valve is a safety valve for a mechanical vacuum pump, which is installed at the air inlet of the mechanical vacuum pump and opens and closes synchronously with the pump. When the pump stops working or the power supply is suddenly interrupted, the valve automatically closes. The vacuum system is kept in a vacuum state and the atmosphere is filled into the pump cavity, so as to avoid the reverse flow of pump oil and pollute the vacuum system. The applicable media of the electromagnetic vacuum belt inflation valve are pure air and non-corrosive gases.

[0003] For the existing electromagnetic vacuum belt inflation valve with good air tightness, when connecting with other pipelines, it is not convenient to perform multiple seals on the pipeline connection, and there is easily a situation where the air tightness of the pipeline connection is insufficient.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and an electromagnetic vacuum belt inflation valve with good air tightness is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electromagnetic vacuum belt inflation valve with good air tightness, so as to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an electromagnetic vacuum belt inflation valve with good air tightness, including a valve body, a valve pipe and a sealing connection component. A valve pipe is fixed below the valve body, and a first connecting pipe and a second connecting pipe are respectively connected to the lower side and the outer side of the valve pipe. Sealing connection components are installed at the other ends of the first connecting pipe and the second connecting pipe. The sealing connection component includes a fixed outer pipe, an outer flange, a fixed inner pipe, a sealing ring, a mesh frame, a filter screen and a locking bolt. Outer flanges are fixed on both outer sides of the fixed outer pipe, and a fixed inner pipe is integrally fixed inside the fixed outer pipe. Sealing rings are equidistantly fixed on the outer sides of both ends of the fixed inner pipe, and a mesh frame is installed inside the fixed inner pipe. A filter screen is fixed inside the mesh frame, and a locking bolt penetrates through one side of the mesh frame. An outer connecting pipe is installed at the other end of the sealing connection component.

[0007] Furthermore, the first connecting pipe and the second connecting pipe have the same structure, and the second connecting pipe includes a pipe body and a first supporting convex ring. First supporting convex rings are equidistantly fixed inside one end of the pipe body close to the sealing connection component.

[0008] Furthermore, the outer connecting pipe includes an outer connecting tube and a second supporting convex ring. Second supporting convex rings are equidistantly fixed inside one end of the outer connecting tube close to the sealing connection component.

[0009] Furthermore, connection flanges are fixed to one end of the pipe body and the external connection pipe close to the fixed outer pipe, and the two connection flanges are bolted to two outer flanges on both sides of the outside of the fixed outer pipe respectively.

[0010] Furthermore, a protection assembly is installed on the outside of the valve body, and the protection assembly includes a mounting ring, a spring and a rubber anti-collision plate. The rubber anti-collision plate is elastically connected to the outside of the mounting ring through the spring.

[0011] Furthermore, six groups of the rubber anti-collision plates are evenly distributed about the vertical center line of the mounting ring, and the rubber anti-collision plates are in an arc-shaped structure.

[0012] The utility model provides an electromagnetic vacuum belt inflation valve with good airtightness, and has the following beneficial effects:

[0013] The utility model is provided with a sealing connection assembly. The double-pipe arrangement of the fixed outer pipe and the fixed inner pipe can enhance the structural strength on the one hand. On the other hand, the sealing rings evenly distributed at both ends of the fixed inner pipe can cooperate with the first supporting convex ring and the second supporting convex ring of the pipe body and the fixed outer pipe respectively to play a role of multiple seals. The fixed outer pipe can be connected to the pipe bodies and the fixed outer pipe at both ends through the outer flanges respectively, so that when the sealing part is damaged, only the intermediate connecting piece, that is, the sealing connection assembly, can be replaced, and it is convenient for the external connecting pipe to be connected to the first connecting pipe and the second connecting pipe.

[0014] The utility model is provided with a protection assembly. The mounting ring can be sleeved on the outside of the valve body. The six groups of rubber anti-collision plates in an arc-shaped structure are elastically connected to the outside of the mounting ring through the springs, so that the rubber anti-collision plates can protect the outside of the valve body from collision. The two filter nets can filter the fluid flowing through the fixed inner pipe. The locking bolts facilitate the disassembly of the net frame, the filter nets and the fixed inner pipe, so as to facilitate the cleaning or replacement of the filter nets. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded structural schematic diagram of an electromagnetic vacuum belt inflation valve with good airtightness of the utility model;

[0016] Figure 2 is an overall structural schematic diagram of an electromagnetic vacuum belt inflation valve with good airtightness of the utility model;

[0017] Figure 3 is a half-sectional structural schematic diagram of a sealing connection assembly of an electromagnetic vacuum belt inflation valve with good airtightness of the utility model;

[0018] Figure 4 is an external structural schematic diagram of a sealing connection assembly of an electromagnetic vacuum belt inflation valve with good airtightness of the utility model.

[0019] In the figure: 1, valve body; 2, valve pipe; 3, first connecting pipe; 4, second connecting pipe; 401, pipe body; 402, first supporting collar; 5, sealing connection assembly; 501, fixed outer pipe; 502, outer flange; 503, fixed inner pipe; 504, sealing ring; 505, mesh frame; 506, filter screen; 507, locking bolt; 6, outer connecting pipe; 601, outer connecting tube; 602, second supporting collar; 7, connecting flange; 8, protection assembly; 801, mounting ring; 802, spring; 803, rubber anti-collision plate. Specific embodiments

[0020] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] As Figures 1-4 shown, an electromagnetic vacuum belt inflation valve with good airtightness includes a valve body 1, a valve pipe 2 and a sealing connection assembly 5. A valve pipe 2 is fixed below the valve body 1, and a first connecting pipe 3 and a second connecting pipe 4 are respectively connected to the lower side and the outer side of the valve pipe 2. Sealing connection assemblies 5 are installed at the other ends of the first connecting pipe 3 and the second connecting pipe 4. The sealing connection assembly 5 includes a fixed outer pipe 501, an outer flange 502, a fixed inner pipe 503, a sealing ring 504, a mesh frame 505, a filter screen 506 and a locking bolt 507. Outer flanges 502 are fixed on both outer sides of the fixed outer pipe 501, and a fixed inner pipe 503 is integrally fixed inside the fixed outer pipe 501. Sealing rings 504 are equidistantly fixed on the outer sides of both ends of the fixed inner pipe 503. A mesh frame 505 is installed inside the fixed inner pipe 503. A filter screen 506 is fixed inside the mesh frame 505, and a locking bolt 507 penetrates through one side of the mesh frame 505; the two filter screens 506 can filter the fluid flowing through the fixed inner pipe 503. The locking bolt 507 facilitates the disassembly between the mesh frame 505, the filter screen 506 and the fixed inner pipe 503, so as to facilitate the cleaning or replacement of the filter screen 506. The double-pipe setting of the fixed outer pipe 501 and the fixed inner pipe 503 can enhance the structural strength.

[0022] As Figures 1-3As shown in the figure, the structures of the first connecting pipe 3 and the second connecting pipe 4 are the same, and the second connecting pipe 4 includes a pipe body 401 and a first supporting collar 402. The first supporting collar 402 is fixedly arranged at equal intervals on the inner side of one end of the pipe body 401 close to the sealing connection assembly 5. An outer connecting pipe 6 is installed at the other end of the sealing connection assembly 5. The outer connecting pipe 6 includes an outer connecting pipe 601 and a second supporting collar 602. The second supporting collar 602 is fixedly arranged at equal intervals on the inner side of one end of the outer connecting pipe 601 close to the sealing connection assembly 5. Connecting flanges 7 are fixedly arranged at one ends of the pipe body 401 and the outer connecting pipe 601 close to the fixed outer pipe 501. The two connecting flanges 7 are respectively bolted to two outer flanges 502 on both sides of the outside of the fixed outer pipe 501. The sealing rings 504 distributed at equal intervals at both ends of the fixed inner pipe 503 can respectively cooperate with the first supporting collar 402 of the pipe body 401 and the fixed outer pipe 501 and the second supporting collar 602 to play a role in multiple seals. The fixed outer pipe 501 can be connected to the pipe body 401 and the fixed outer pipe 501 at both ends through the outer flanges 502, so that when the sealing part is damaged, only the intermediate connecting piece, that is, the sealing connection assembly 5, can be replaced, and it is convenient for the connection between the outer connecting pipe 6 and the first connecting pipe 3 and the second connecting pipe 4.

[0023] As Figures 1-2 shown in the figure, a protection assembly 8 is installed on the outside of the valve body 1. The protection assembly 8 includes a mounting ring 801, a spring 802 and a rubber anti-collision plate 803. The rubber anti-collision plate 803 is elastically connected to the outside of the mounting ring 801 through the spring 802. Six groups of rubber anti-collision plates 803 are evenly distributed about the vertical center line of the mounting ring 801, and the rubber anti-collision plates 803 are in an arc-shaped structure. The mounting ring 801 can be sleeved on the outside of the valve body 1. The six groups of rubber anti-collision plates 803 in an arc-shaped structure are elastically connected to the outside of the mounting ring 801 through the spring 802, so that the rubber anti-collision plates 803 can protect the outside of the valve body 1 from collision.

[0024] In summary, as Figures 1-4As shown, for the electromagnetic vacuum belt inflation valve with good airtightness, during use, the outer flanges 502 of the fixed outer tube 501 can be respectively connected to the tube bodies 401 at both ends and the fixed outer tube 501. At this time, the sealing rings 504 evenly distributed at both ends of the fixed inner tube 503 can respectively cooperate with the first supporting convex rings 402 of the tube body 401 and the fixed outer tube 501, and the second supporting convex rings 602, so that the sealing rings 504 are located between two adjacent first supporting convex rings 402 or second supporting convex rings 602, to achieve multiple barriers and thus play a role of multiple seals. At the same time, the double-pipe arrangement of the fixed outer tube 501 and the fixed inner tube 503 can enhance the structural strength on the one hand. During use, the two filter meshes 506 can filter the fluid flowing through the fixed inner tube 503, and the disassembly between the mesh frame 505, the filter mesh 506 and the fixed inner tube 503 can be realized through the locking bolts 507, so as to clean or replace the filter mesh 506. In addition, the mounting ring 801 can be sleeved on the outside of the valve body 1, and the six arc-shaped rubber anti-collision plates 803 are elastically connected to the outside of the mounting ring 801 through the springs 802, so that the rubber anti-collision plates 803 can provide anti-collision protection for the outside of the valve body 1. In this way, the use process of the electromagnetic vacuum belt inflation valve with good airtightness is completed.

[0025] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. An electromagnetic vacuum belt inflation valve with good airtightness, comprising a valve body (1), a valve tube (2) and a sealing connection assembly (5), characterized in that, A valve pipe (2) is fixed below the valve body (1), and a first connecting pipe (3) and a second connecting pipe (4) are respectively connected to the lower side and the outer side of the valve pipe (2). The other ends of the first connecting pipe (3) and the second connecting pipe (4) are both installed with a sealing connection assembly (5), and the sealing connection assembly (5) includes a fixed outer pipe (501), an outer flange (502), a fixed inner pipe (503), a sealing ring (504), a mesh frame (505), a filter screen (506) and a locking bolt (507). Outer flanges (502) are fixed on both sides of the outside of the fixed outer pipe (501), and a fixed inner pipe (503) is integrally fixed inside the fixed outer pipe (501). Sealing rings (504) are equidistantly fixed on the outer sides of both ends of the fixed inner pipe (503), and a mesh frame (505) is installed inside the fixed inner pipe (503). A filter screen (506) is fixed inside the mesh frame (505), and a locking bolt (507) penetrates through one side of the mesh frame (505). An outer connecting pipe (6) is installed at the other end of the sealing connection assembly (5).

2. The airtight electromagnetic vacuum belt inflation valve according to claim 1, characterized in that, The first connecting pipe (3) and the second connecting pipe (4) have the same structure, and the second connecting pipe (4) includes a pipe body (401) and a first supporting convex ring (402). First supporting convex rings (402) are equidistantly fixed on the inner side of one end of the pipe body (401) close to the sealing connection assembly (5).

3. The airtight electromagnetic vacuum belt inflating valve according to claim 2, characterized in that, The outer connecting pipe (6) includes an outer connecting pipe (601) and a second supporting convex ring (602). Second supporting convex rings (602) are equidistantly fixed on the inner side of one end of the outer connecting pipe (601) close to the sealing connection assembly (5).

4. The airtight electromagnetic vacuum belt inflation valve according to claim 3, characterized in that, One ends of the pipe body (401) and the outer connecting pipe (601) close to the fixed outer pipe (501) are both fixed with connecting flanges (7), and the two connecting flanges (7) are respectively bolted to the two outer flanges (502) on both sides of the outside of the fixed outer pipe (501).

5. The airtight electromagnetic vacuum belt inflation valve according to claim 1, characterized in that, A protection assembly (8) is installed on the outside of the valve body (1), and the protection assembly (8) includes an installation ring (801), a spring (802) and a rubber anti-collision plate (803). The rubber anti-collision plate (803) is elastically connected to the outside of the installation ring (801) through the spring (802).

6. The airtight electromagnetic vacuum belt inflation valve according to claim 5, characterized in that, Six groups of the rubber anti-collision plates (803) are evenly distributed with respect to the vertical center line of the installation ring (801), and the rubber anti-collision plates (803) are in an arc-shaped structure.

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