Mounting structure of built-in electromagnetic valve of vacuum pump

Abstract

The utility model discloses a vacuum pump built-in solenoid valve installation structure which comprises a vacuum pump body and a solenoid valve body, an installation seat is arranged in the vacuum pump body, the solenoid valve body is installed on the installation seat, an installation block is arranged in the solenoid valve body, and a movable block is connected in the installation block in a sliding mode. A push-back spring connected with the moving block is arranged on the inner wall of the mounting block, an inserting rod is integrally connected to the outer wall of one side of the moving block, and an inserting hole is formed in the mounting base. According to the utility model, after the mounting block is inserted into the mounting seat, the elastic force of the pushing spring is greater than the elastic force of the back-pushing spring, so that when the pressing rod is loosened, the elastic force of the pushing spring can push the sliding block to extrude the inclined surface of the moving block, and the moving block can drive the inserting rod to move, so that the inserting rod is inserted into the inserting hole; the electromagnetic valve body does not need to be mounted through screws, and the problems that the internal space of the vacuum pump body is narrow, and mounting and dismounting are inconvenient due to the fact that the electromagnetic valve body is mounted through the screws are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to an installation structure of a built-in electromagnetic valve of a vacuum pump. Background Art

[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum; a vacuum pump is a device that uses various methods to improve, generate and maintain vacuum in a closed space. Vacuum pumps can basically be divided into two types, gas capture pumps and gas transmission pumps, which are widely used in metallurgy, chemical industry, food, electronic coating and other industries. Common vacuum pumps include dry screw vacuum pumps, water ring pumps, reciprocating pumps, sliding valve pumps, rotary vane pumps, Roots pumps and diffusion pumps; the function of a vacuum pump is to remove gas molecules from the container to reduce the gas pressure in the container to achieve the required vacuum degree. A built-in solenoid valve is installed inside the vacuum pump.

[0003] For example, a solenoid valve installation structure with announcement number CN207213298U and announcement date 2018.04.10 belongs to the technical field of engine design and preparation. The solenoid valve installation structure of the utility model includes a base, a sleeve, a solenoid valve core and a solenoid valve seat. A mounting hole is provided in the base, the solenoid valve seat is provided in the mounting hole, the sleeve is provided between the outer wall of the solenoid valve seat and the inner wall of the mounting hole and is fixed to the inner wall of the mounting hole by a threaded connection, and the bottom surface of the solenoid valve seat is in contact with and fixed to the inner end surface of the sleeve; the solenoid valve core is installed on the solenoid valve seat and extends outward along the axial direction of the solenoid valve seat, and the solenoid valve core and the mounting hole are sealed by an O-ring.

[0004] As mentioned above and in the prior art, the solenoid valve is usually installed using screws, but the internal space of the vacuum pump is small, and it is very inconvenient to install and disassemble the solenoid valve using screws. Therefore, it is urgent to design an installation structure for a built-in solenoid valve in a vacuum pump to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a mounting structure of a built-in electromagnetic valve of a vacuum pump to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A mounting structure for a built-in solenoid valve in a vacuum pump comprises a vacuum pump body and a solenoid valve body, wherein a mounting seat is provided inside the vacuum pump body, and the solenoid valve body is mounted on the mounting seat, a mounting block is provided inside the solenoid valve body, and a moving block is slidably connected inside the mounting block, a push-back spring connected to the moving block is provided on the inner wall of the mounting block, and an insertion rod is integrally connected to the outer wall of one side of the moving block, a socket is provided inside the mounting seat, and the insertion rod is inserted into the socket, a sliding block is slidably connected inside the mounting block, and a pushing spring connected to the sliding block is provided on the inner wall of the mounting block, the pushing spring is sleeved on the outside of the sliding block, and a pressing rod extending to the outside of the mounting block is provided on the outer wall of one side of the sliding block.

[0008] Furthermore, a mounting cavity is provided inside the mounting seat, and a support rod is provided on the inner wall of the mounting cavity.

[0009] Furthermore, a rotating sleeve is rotatably connected to the outer wall of the support rod via a bearing, and an extrusion block is integrally connected to the outer wall of the rotating sleeve.

[0010] Furthermore, a center rod is arranged on the inner wall of one side of the installation cavity, and a torsion spring connected to the rotating sleeve is arranged on the outer wall of the center rod, and the torsion spring is sleeved on the outside of the center rod.

[0011] Furthermore, a through groove is provided inside the mounting seat, and the through groove is communicated with the mounting cavity.

[0012] Furthermore, a push block is integrally connected to the outer wall of one side of the installation block, and the push block passes through the through slot and is inserted into the interior of the installation cavity.

[0013] Furthermore, a sealing ring is arranged on the outer wall of one side of the electromagnetic valve body, and a sealing groove is opened on the outer wall of the mounting seat close to the electromagnetic valve body, and the sealing ring is clamped in the inner part of the sealing groove.

[0014] In the above technical scheme, the utility model provides a mounting structure of a built-in electromagnetic valve of a vacuum pump, (1) through the setting of a mounting seat, an electromagnetic valve body, a mounting block, a moving block, a push-back spring, an insertion rod, a socket, a sliding block, a holding spring and a pressing rod, after the mounting block is inserted into the interior of the mounting seat, because the elastic force of the setting holding spring is greater than the elastic force of the push-back spring, when the pressing rod is released, the elastic force of the holding spring will push the sliding block to squeeze the inclined surface of the moving block, so that the moving block can drive the insertion rod to move so that the insertion rod is inserted into the interior of the socket, and there is no need to use screws to install the electromagnetic valve body, which solves the problem of narrow space inside the vacuum pump body and the use of screws. The problem of inconvenience in installation and disassembly caused by the installation of the solenoid valve body; (2) through the installation cavity, support rod, rotating sleeve, extrusion block, center rod, torsion spring, through groove and push block, at the moment when the mounting seat loses its fixation on the solenoid valve body, the extrusion block is not supported by the push block, and the torsional force of the torsion spring will drive the rotating sleeve and the extrusion block to rotate, and the extrusion block will push the push block and the mounting block, so that the solenoid valve body can be popped out from the mounting seat, which is very convenient; (3) through the sealing ring and sealing groove, after the solenoid valve body is installed on the mounting seat, the sealing ring will be clamped in the inside of the sealing groove, which can ensure the sealing between the solenoid valve body and the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 The utility model provides a three-dimensional structural schematic diagram of an installation structure embodiment of a built-in electromagnetic valve of a vacuum pump.

[0017] Figure 2 A schematic diagram of the structure of a vacuum pump and a solenoid valve is provided for an installation structure embodiment of a vacuum pump with a built-in solenoid valve according to the utility model.

[0018] Figure 3 A detailed structural diagram of an embodiment of the installation structure of a built-in solenoid valve in a vacuum pump provided by the utility model.

[0019] Figure 4 The utility model is a schematic diagram of the internal structure of the installation cavity provided by an installation structure embodiment of a built-in solenoid valve of a vacuum pump.

[0020] Description of reference numerals:

[0021] 1. Vacuum pump body; 2. Mounting seat; 3. Solenoid valve body; 4. Mounting block; 5. Moving block; 6. Push back spring; 7. Insert rod; 8. Insert hole; 9. Sliding block; 10. Push spring; 11. Press rod; 12. Mounting cavity; 13. Support rod; 14. Rotating sleeve; 15. Extrusion block; 16. Center rod; 17. Torsion spring; 18. Through groove; 19. Push block; 20. Sealing ring; 21. Sealing groove. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-4 As shown, an installation structure of a built-in solenoid valve in a vacuum pump provided by an embodiment of the utility model comprises a vacuum pump body 1 and a solenoid valve body 3, a mounting seat 2 is arranged inside the vacuum pump body 1, and the solenoid valve body 3 is installed on the mounting seat 2, a mounting block 4 is arranged inside the solenoid valve body 3, and a moving block 5 is slidably connected inside the mounting block 4, a push-back spring 6 connected to the moving block 5 is arranged on the inner wall of the mounting block 4, and an insertion rod 7 is integrally connected to the outer wall of one side of the moving block 5, a socket 8 is opened inside the mounting seat 2, and the insertion rod 7 is inserted into the socket 8, a sliding block 9 is slidably connected inside the mounting block 4, and a pushing spring 10 connected to the sliding block 9 is arranged on the inner wall of the mounting block 4, the pushing spring 10 is sleeved on the outside of the sliding block 9, and a pressing rod 11 extending to the outside of the mounting block 4 is arranged on the outer wall of one side of the sliding block 9.

[0024] The utility model provides a mounting structure of a built-in electromagnetic valve of a vacuum pump, comprising a vacuum pump body 1 and an electromagnetic valve body 3, wherein a mounting seat 2 is arranged inside the vacuum pump body 1, and the electromagnetic valve body 3 is mounted on the mounting seat 2, a mounting block 4 is arranged inside the electromagnetic valve body 3, and a moving block 5 is slidably connected inside the mounting block 4, a push-back spring 6 connected to the moving block 5 is arranged on the inner wall of the mounting block 4, and an insertion rod 7 is integrally connected to the outer wall of one side of the moving block 5, a plug hole 8 is opened inside the mounting seat 2, and the insertion rod 7 is plugged into the inside of the plug hole 8, a sliding block 9 is slidably connected inside the mounting block 4, and a push-holding spring 10 connected to the sliding block 9 is arranged on the inner wall of the mounting block 4, the push-holding spring 10 is sleeved on the outside of the sliding block 9, and the push-holding spring 10 is sleeved on the outside of the sliding block 9, and the push-holding spring 10 is sleeved on the outside of the sliding block 9. A pressing rod 11 extending to the outside of the mounting block 4 is provided on the outer wall. Pressing the pressing rod 11 drives the sliding block 9 to move. At this time, the moving block 5 is not squeezed by the sliding block 9. The elastic force of the pushing spring 10 will push the moving block 5 and the plug rod 7 to move so that the plug rod 7 enters the interior of the mounting block 4, and the solenoid valve body 3 is inserted into the interior of the mounting seat 2. The pressing rod 11 is released. Because the elastic force of the pushing spring 10 is greater than the elastic force of the push-back spring 6, the elastic force of the pushing spring 10 will push the sliding block 9 to squeeze the inclined surface of the moving block 5, so that the moving block 5 can drive the plug rod 7 to move, and the plug rod 7 can be inserted into the inside of the socket 8. There is no need to use screws to install the solenoid valve body 3, which makes the installation and disassembly of the solenoid valve body 3 very convenient and quick, and also improves the efficiency of installation and disassembly.

[0025] By setting: after the mounting block 4 is inserted into the interior of the mounting seat 2, because the elastic force of the push spring 10 is greater than the elastic force of the push-back spring 6, when the pressing rod 11 is released, the elastic force of the push spring 10 will push the sliding block 9 to squeeze the inclined surface of the moving block 5, so that the moving block 5 can drive the insertion rod 7 to move so that the insertion rod 7 is inserted into the inside of the socket 8, and there is no need to use screws to install the solenoid valve body 3, which solves the problem of inconvenience in installation and disassembly caused by the small internal space of the vacuum pump body 1 and the use of screws to install the solenoid valve body 3.

[0026] In one embodiment provided by the present utility model, Figure 3 and Figure 4 As shown, a mounting cavity 12 is provided inside the mounting seat 2 , and a support rod 13 is provided on the inner wall of the mounting cavity 12 . The support rod 13 is used to support the rotating sleeve 14 .

[0027] In another embodiment provided by the present utility model, Figure 3 and Figure 4 As shown, a rotating sleeve 14 is rotatably connected to the outer wall of the support rod 13 via a bearing, and an extrusion block 15 is integrally connected to the outer wall of the rotating sleeve 14. When the rotating sleeve 14 rotates, the extrusion block 15 is driven to rotate.

[0028] In another embodiment provided by the present utility model, Figure 4 As shown, a center rod 16 is provided on the inner wall of one side of the mounting cavity 12, and a torsion spring 17 connected to the rotating sleeve 14 is provided on the outer wall of the center rod 16. The torsion spring 17 is sleeved on the outside of the center rod 16. The torsion force of the torsion spring 17 is smaller than the elastic force of the pushing spring 10. When the pressing rod 11 is pressed and moved to the front end of the mounting block 4 but does not contact the front end inner wall of the mounting block 4, the torsion force of the torsion spring 17 will push the push block 19 to move.

[0029] In one embodiment provided by the present utility model, Figure 2 and Figure 3 As shown, a through slot 18 is provided inside the mounting seat 2 , and the through slot 18 is communicated with the mounting cavity 12 , and the through slot 18 is used for the push block 19 to pass through.

[0030] In another embodiment provided by the present utility model, Figure 2 and Figure 3 As shown, a push block 19 is integrally connected to the outer wall of one side of the mounting block 4 , and the push block 19 passes through the through slot 18 and is inserted into the interior of the mounting cavity 12 . The push block 19 can squeeze the squeezing block 15 .

[0031] In another embodiment provided by the present utility model, Figure 2 and Figure 3 As shown, a sealing ring 20 is provided on the outer wall of one side of the solenoid valve body 3, and a sealing groove 21 is opened on the outer wall of the mounting seat 2 close to the solenoid valve body 3. The sealing ring 20 is clamped in the inside of the sealing groove 21 to ensure the sealing of the connection between the solenoid valve body 3 and the mounting seat 2.

[0032] Working principle: Press the pressing rod 11 to drive the sliding block 9 to move. At this time, the moving block 5 is not squeezed by the sliding block 9. The elastic force of the pushing spring 10 will push the moving block 5 and the plug rod 7 to move, so that the plug rod 7 enters the interior of the mounting block 4, and the electromagnetic valve body 3 is inserted into the interior of the mounting seat 2. Release the pressing rod 11. Because the elastic force of the set pushing spring 10 is greater than the elastic force of the push-back spring 6, the elastic force of the pushing spring 10 will push the sliding block 9 to squeeze the inclined surface of the moving block 5, so that the moving block 5 can drive the plug rod 7 to move, and the plug rod 7 will be plugged into the inside of the socket 8. There is no need to use screws to install the electromagnetic valve body 3, which solves the problem of narrow internal space of the vacuum pump body 1, making it more convenient to install and disassemble the electromagnetic valve body 3. At this time, the sealing ring 20 is clamped in the inside of the sealing groove 21, which can ensure the sealing between the electromagnetic valve body 3 and the mounting seat 2. When the electromagnetic valve body 3 needs to be disassembled, the pressing rod 11 is pressed to drive the sliding block 9 to move. At this time, the moving block 5 is not squeezed by the sliding block 9, and the elastic force of the pushing spring 10 will push the moving block 5 and the plug rod 7 to move, so that the plug rod 7 enters the inside of the mounting block 4. At this time, the mounting seat 2 loses the fixation of the electromagnetic valve body 3. At the moment of losing the fixation, the squeezing block 15 is not pushed by the pushing block 19, and the torsional force of the torsion spring 17 will drive the rotating sleeve 14 and the squeezing block 15 to rotate. The squeezing block 15 will push the pushing block 19 and the mounting block 4 to move, and the electromagnetic valve body 3 can be popped out from the mounting seat 2, making it more convenient to disassemble the electromagnetic valve body 3.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mounting structure for a built-in electromagnetic valve in a vacuum pump, comprising a vacuum pump body (1) and an electromagnetic valve body (3), characterized in that: The vacuum pump body (1) is provided with a mounting seat (2) inside, and the electromagnetic valve body (3) is installed on the mounting seat (2); the electromagnetic valve body (3) is provided with a mounting block (4) inside, and the mounting block (4) is slidably connected to a moving block (5) inside; a push-back spring (6) connected to the moving block (5) is provided on the inner wall of the mounting block (4), and an insertion rod (7) is integrally connected to the outer wall of one side of the moving block (5); a plug hole (8) is provided inside the mounting seat (2), and the insertion rod (7) is inserted into the inside of the plug hole (8); a sliding block (9) is slidably connected to the inside of the mounting block (4), and a push spring (10) connected to the sliding block (9) is provided on the inner wall of the mounting block (4); the push spring (10) is sleeved on the outside of the sliding block (9); and a pressing rod (11) extending to the outside of the mounting block (4) is provided on the outer wall of one side of the sliding block (9).

2. The mounting structure of a built-in electromagnetic valve of a vacuum pump according to claim 1, characterized in that: The mounting seat (2) is provided with a mounting cavity (12) inside, and a support rod (13) is arranged on the inner wall of the mounting cavity (12).

3. The mounting structure of a built-in electromagnetic valve of a vacuum pump according to claim 2, characterized in that: A rotating sleeve (14) is rotatably connected to the outer wall of the support rod (13) via a bearing, and an extrusion block (15) is integrally connected to the outer wall of the rotating sleeve (14).

4. The mounting structure of a built-in electromagnetic valve of a vacuum pump according to claim 3, characterized in that: A center rod (16) is arranged on the inner wall of one side of the installation cavity (12), and a torsion spring (17) connected to the rotating sleeve (14) is arranged on the outer wall of the center rod (16), and the torsion spring (17) is sleeved on the outside of the center rod (16).

5. The mounting structure of a built-in electromagnetic valve of a vacuum pump according to claim 4, characterized in that: A through groove (18) is provided inside the mounting seat (2), and the through groove (18) is communicated with the mounting cavity (12).

6. The mounting structure of a built-in electromagnetic valve of a vacuum pump according to claim 5, characterized in that: A push block (19) is integrally connected to the outer wall of one side of the installation block (4), and the push block (19) penetrates the through slot (18) and is inserted into the interior of the installation cavity (12).

7. The mounting structure of a built-in electromagnetic valve of a vacuum pump according to claim 6, characterized in that: A sealing ring (20) is provided on the outer wall of one side of the electromagnetic valve body (3), and a sealing groove (21) is provided on the outer wall of the mounting seat (2) close to the electromagnetic valve body (3), and the sealing ring (20) is clamped inside the sealing groove (21).

Images