CN212838231U - Mounting structure of built-in solenoid valve of vacuum pump - Google Patents

Mounting structure of built-in solenoid valve of vacuum pump Download PDF

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Publication number
CN212838231U
CN212838231U CN202021894982.0U CN202021894982U CN212838231U CN 212838231 U CN212838231 U CN 212838231U CN 202021894982 U CN202021894982 U CN 202021894982U CN 212838231 U CN212838231 U CN 212838231U
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China
Prior art keywords
electromagnetic valve
vacuum pump
valve seat
mounting structure
bracket
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CN202021894982.0U
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Chinese (zh)
Inventor
郑泽安
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Zhejiang Aite Refrigeration Equipment Co ltd
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Zhejiang Aite Refrigeration Equipment Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The utility model provides a mounting structure of built-in solenoid valve of vacuum pump belongs to vacuum pump technical field. The vacuum pump upper bracket solves the technical problems that an existing vacuum pump upper bracket is large in scrapping amount, inconvenient to machine, poor in sealing performance and the like. The vacuum pump comprises a pump body, an electromagnetic valve and a support, wherein the pump body is fixedly arranged on the support, the mounting structure comprises an electromagnetic valve seat fixedly arranged on the support, an air inlet channel and an air passing channel are formed in the support, a first air vent communicated with the air inlet channel and a second air vent communicated with the air passing channel are formed in the electromagnetic valve seat, the electromagnetic valve is hermetically fixed on the electromagnetic valve seat, a sealing gasket is arranged in the electromagnetic valve seat, and the sealing gasket can reciprocate in the electromagnetic valve and is used for sealing one end, far away from the air inlet channel, of the first air vent or enabling the first air vent to be communicated. The utility model discloses well solenoid valve seat enables solenoid valve and support sealing connection, can reduce the requirement of vacuum pump to support cost quality, reduces the volume of scrapping of support.

Description

Mounting structure of built-in solenoid valve of vacuum pump
Technical Field
The utility model belongs to the technical field of the vacuum pump, a mounting structure of built-in solenoid valve of vacuum pump is related to.
Background
The vacuum pump is a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physicochemical method, and in popular terms, the vacuum pump is a device for improving, generating and maintaining vacuum in a certain closed space by using various methods; the electromagnetic valve is a special valve installed on the vacuum pump, the electromagnetic valve and the vacuum pump are connected on the same power supply, the opening and the closing of the electromagnetic valve are directly controlled by the opening and the closing of the vacuum pump, when the vacuum pump stops working or the power supply is suddenly interrupted, the electromagnetic valve can automatically seal the vacuum system, and atmosphere is filled into the pump cavity through the air inlet of the vacuum pump, so that the pump oil is prevented from flowing back to pollute the vacuum system; the pump body on a general vacuum pump is connected with the electromagnetic valve through a bracket, and the bracket has a pore passage, so that the bracket finished product quality is required to be high in order to prevent the air leakage of the vacuum pump, and the scrappage of the bracket is large.
Disclosure of Invention
The utility model discloses to the above-mentioned problem that prior art exists, provide a mounting structure of built-in solenoid valve of vacuum pump, the utility model aims to solve the technical problem that: how to improve the leakproofness of solenoid valve installation and reduce the volume of scrapping of vacuum pump upper bracket.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a mounting structure of built-in solenoid valve of vacuum pump, the vacuum pump includes the pump body, solenoid valve and support, the pump body sets firmly on the support, its characterized in that, mounting structure is including setting firmly solenoid valve seat on the support, it has inlet channel and air channel to cross to open on the support, open on the solenoid valve seat with the communicating air vent one of inlet channel and with the communicating air vent two of air channel, the solenoid valve is sealed to be fixed on the solenoid valve seat and inside is equipped with sealed the pad, sealed pad can reciprocating motion is used for sealing in the solenoid valve one keep away from inlet channel's one end or messenger air vent one and air vent two communicate.
The working principle is as follows: the support among this technical scheme is aluminium die casting and inside inlet channel and the gas channel of having, hardness is not high, with solenoid valve direct mount on the support, it leaks outwards from the clearance between support and the solenoid valve to lead to gas very easily, this has harsh requirement just to the finished product quality of support if want to reach better sealed effect, utilize solenoid valve seat to connect the solenoid valve on the support now, because solenoid valve seat does not have the air flue, it is more convenient to process, the leakproofness that makes support and solenoid valve pass through solenoid valve seat and the three is connected is very easy to reach, just so can reduce the off-the-shelf quality requirement of support, reduce the volume of scrapping of support.
In the mounting structure of the built-in solenoid valve of foretell vacuum pump, it has the confession to open on the support the solenoid valve seat mounting hole that the solenoid valve seat inlayed and establish, the one end outside of solenoid valve seat has the protruding edge of outside extension, one side on protruding edge supports and leans on the support and open and have the several through-hole, have on the support the several with the screw hole of through-hole one-to-one, the through-hole interpolation is equipped with the bolt just the tip spiro union of bolt is in the screw hole. The electromagnetic valve seat is fixed on the support by using the bolt, and the electromagnetic valve seat and the support are firmly connected.
In the installation structure of the built-in electromagnetic valve of the vacuum pump, the support is located a connecting part which extends outwards is arranged on the bottom surface of the installation hole of the electromagnetic valve seat, an inwards concave positioning groove is formed in one end of the convex edge, which is far away from the electromagnetic valve seat, the connecting part is embedded in the positioning groove, the groove wall of the positioning groove is abutted against the outer side surface of the connecting part, the inner end of the air inlet channel extends to the end surface of the connecting part, and one end, far away from the sealing gasket, of the air vent is located on the bottom surface of the positioning groove. The electromagnetic valve seat can be positioned by arranging the connecting part and the positioning groove, and the air inlet channel is ensured to be communicated with the first vent hole.
In the installation structure of the built-in electromagnetic valve of the vacuum pump, an electromagnetic valve installation hole is formed in one end, provided with the convex edge, of the electromagnetic valve seat, one end of the electromagnetic valve is in threaded connection with the inside of the electromagnetic valve installation hole, a protruding portion extending outwards is arranged on the bottom surface of the electromagnetic valve installation hole, the first air vent penetrates through the protruding portion, one end of the first air vent is located on the end face of the protruding portion, and the sealing gasket can abut against the end face of the protruding portion. When the vacuum pump starts to work, the sealing gasket is far away from the first vent hole under the action of the electromagnetic valve, so that the gas in the first vent hole flows into the second vent hole, and when the vacuum pump stops working, the end face of the sealing gasket is abutted against the end face of the protruding portion, so that the gas in the first vent hole is forbidden to flow into the pump body.
In the above installation structure of the built-in electromagnetic valve of the vacuum pump, the end surface of the protrusion is an annular spherical surface protruding outwards. Because the sealing gasket is softer and is easy to deform under the influence of the outside, the end face of the protruding part is arranged to be an annular spherical surface, and even if the sealing gasket deforms, the sealing gasket does not cause air leakage of the vacuum pump when being connected with the end face of the protruding part.
In the installation structure of the built-in electromagnetic valve of the vacuum pump, an inward installation groove I is formed in the position, close to the convex edge, of the outer side of the electromagnetic valve seat, an installation groove II is formed in the groove wall of the positioning groove, a sealing ring I is arranged in the installation groove I, and a sealing ring II is arranged in the installation groove II; the electromagnetic valve is sleeved with a third sealing ring, the third sealing ring is located in the electromagnetic valve mounting hole, and the outer side face of the third sealing ring is abutted to the inner wall of the electromagnetic valve mounting hole. The arrangement of the first sealing ring, the second sealing ring and the third sealing ring can ensure that the connection between the electromagnetic valve seat and the support and the connection between the electromagnetic valve and the electromagnetic valve seat have better air tightness.
In the mounting structure of the built-in electromagnetic valve of the vacuum pump, the electromagnetic valve seat is provided with a plurality of second vent holes, and the plurality of second vent holes are distributed at the joint of the hole wall and the bottom surface of the mounting hole of the electromagnetic valve at intervals. When the air flows from the first vent hole to the second vent hole, the sealing ring is stressed uniformly, and the service life of the sealing ring is prolonged.
In the installation structure of the built-in electromagnetic valve of the vacuum pump, the electromagnetic valve and the pump body are respectively positioned at two sides of the bracket; the electromagnetic valve is a pilot type electromagnetic valve, a pilot valve is arranged in the pilot type electromagnetic valve, and the sealing gasket is fixedly arranged at one end part of the pilot valve. The pilot electromagnetic valve has the advantages of leakage blocking, easy control of inner leakage and safe use, and can ensure that the vacuum pump has better vacuum pumping effect and higher safety.
Compared with the prior art, the utility model discloses in utilize the electromagnetism disk seat to install the solenoid valve on the support, can reduce the off-the-shelf quality requirement of support, reduce the volume of scrapping of support.
Drawings
Fig. 1 is a front view of the mounting structure of the built-in solenoid valve of the vacuum pump.
Fig. 2 is a partial sectional view of the mounting structure of the built-in solenoid valve of the vacuum pump.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.
In the figure, 1, a pump body; 2. an electromagnetic valve; 21. a pilot operated solenoid valve; 21a, a pilot valve; 21b, a gasket; 3. a support; 31. an air intake passage; 32. a gas passage; 33. an electromagnetic valve seat mounting hole; 34. a threaded hole; 35. a connecting portion; 4. an electromagnetic valve seat; 41. a first vent hole; 42. a second vent hole; 43. a convex edge; 43a, a through hole; 44. positioning a groove; 45. A solenoid valve mounting hole; 45a, a projection; 46. a first mounting groove; 47. a second mounting groove; 5. A bolt; 6. a first sealing ring; 7. a second sealing ring; 8. and a third sealing ring.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 3, the vacuum pump in this embodiment includes a pump body 1, an electromagnetic valve 2, and a bracket 3, wherein the pump body 1 is fixedly disposed on one side of the bracket 3, and a motor is disposed on the other side of the bracket 3. The electromagnetic valve 2 in this embodiment is a pilot type electromagnetic valve 21, a pilot valve 21a is arranged in the pilot type electromagnetic valve 21, the pilot valve 21a can reciprocate in the pilot type electromagnetic valve 21, a sealing gasket 21b is embedded at the end of the pilot valve 21a, and the sealing gasket 21b is fixedly connected with the pilot valve 21 a; the mounting structure comprises an electromagnetic valve seat 4, wherein an air inlet channel 31 communicated with the outside, an electromagnetic valve seat mounting hole 33 for embedding the electromagnetic valve seat 4 and an air passing channel 32 are arranged on a support 3, a first vent hole 41 communicated with the air inlet channel 31, a plurality of second vent holes 42 and an electromagnetic valve mounting hole 45 used for mounting the electromagnetic valve 2 are formed in the electromagnetic valve seat 4, the plurality of second vent holes 42 are communicated with the air passing channel 32, one ends of a sealing gasket 21b and a pilot valve 21a are positioned in the electromagnetic valve mounting hole 45, the plurality of second vent holes 42 are distributed at intervals at the joint of the hole wall and the bottom surface of the electromagnetic valve mounting hole 45, when the vacuum pump is powered off, the end of the gasket 21b can block the end of the first vent hole 41 away from the air intake channel 31, when the vacuum pump works, the pilot valve 21a drives the sealing gasket 21b to move towards the direction away from the first vent hole 41, and at the moment, the first vent hole 41 is communicated with the second vent hole 42.
Further, as shown in fig. 1 to 3, an outer side of one end of the solenoid valve seat 4 away from the pump body 1 is provided with a convex edge 43 extending outward, one side of the convex edge 43 abuts against the bracket 3, the convex edge 43 is provided with a plurality of through holes 43a, the bracket 3 is provided with a plurality of threaded holes 34 corresponding to the through holes 43a one by one, the through holes 43a are internally provided with bolts 5, an end portion of each bolt 5 is positioned in the threaded hole 34 and is in threaded connection with the threaded hole 34, the other end of the solenoid valve seat 4 is provided with an inward recessed positioning groove 44, the bracket 3 is provided with a connecting portion 35 protruding outward on a bottom surface of the solenoid valve seat mounting hole 33, one end of the air inlet channel 31 is positioned on an outer surface of the bracket 3, the other end of the air inlet channel 31 extends to an end surface of the connecting portion 35, one end of the vent hole one 41 away from the sealing gasket 21, a first mounting groove 46 is formed in the outer side of the electromagnetic valve seat 4, which is close to the convex edge 43, a first sealing ring 6 is arranged in the first mounting groove 46, the outer side of the first sealing ring 6 abuts against the wall of the electromagnetic valve seat mounting hole 33, a second mounting groove 47 is formed in the wall of the positioning groove 44, a second sealing ring 7 is arranged in the second mounting groove 47, and the inner side surface of the second sealing ring 7 abuts against the outer side surface of the connecting part 35; the sealing ring I6 and the sealing ring II 7 are arranged, so that the sealing performance of the connection between the electromagnetic valve seat 4 and the support 3 is better.
Further, as shown in fig. 1 to 3, one end of the solenoid valve 2 is screwed into the solenoid valve mounting hole 45, and a third sealing ring 8 is sleeved at a position, close to the end portion, of the outer side of the solenoid valve 2, the outer side of the third sealing ring 8 abuts against a position, close to one end with a convex edge 43, of the inner wall of the solenoid valve mounting hole 45, the bottom surface of the solenoid valve mounting hole 45 is provided with a convex portion 45a, the first vent hole 41 penetrates through the convex portion 45a, one end of the first vent hole is located on the end surface of the convex portion 45a, the end surface of the convex portion 45a is an annular spherical surface protruding outwards, and when power is off, air leakage at a joint of the end surface.
The electromagnetic valve seat 4 is used for installing the electromagnetic valve 2 on the support 3, so that gas leakage when the vacuum pump does not work can be avoided, the requirement on the quality of finished products of the support 3 is reduced, and the scrapping amount of the support 3 can be reduced.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (8)

1. A vacuum pump built-in electromagnetic valve mounting structure comprises a pump body (1), an electromagnetic valve (2) and a bracket (3), wherein the pump body (1) is fixedly arranged on the bracket (3), it is characterized in that the mounting structure comprises an electromagnetic valve seat (4) fixedly arranged on the bracket (3), the bracket (3) is provided with an air inlet channel (31) and an air passing channel (32), a first vent hole (41) communicated with the air inlet channel (31) and a second vent hole (42) communicated with the air passing channel (32) are formed in the electromagnetic valve seat (4), the electromagnetic valve (2) is fixed on the electromagnetic valve seat (4) in a sealing way and is internally provided with a sealing gasket (21b), the sealing gasket (21b) can reciprocate in the electromagnetic valve (2) and is used for closing one end of the first vent hole (41) far away from the air inlet channel (31) or enabling the first vent hole (41) to be communicated with the second vent hole (42).
2. The mounting structure of the built-in electromagnetic valve of the vacuum pump according to claim 1, wherein the bracket (3) is provided with an electromagnetic valve seat mounting hole (33) for the electromagnetic valve seat (4) to be embedded, the outer side of one end of the electromagnetic valve seat (4) is provided with a convex edge (43) extending outwards, one side of the convex edge (43) abuts against the bracket (3) and is provided with a plurality of through holes (43a), the bracket (3) is provided with a plurality of threaded holes (34) corresponding to the through holes (43a) one by one, the through holes (43a) are inserted with bolts (5), and the end parts of the bolts (5) are screwed in the threaded holes (34).
3. The mounting structure of the built-in electromagnetic valve of the vacuum pump according to claim 2, wherein the bracket (3) is provided with a connecting portion (35) extending outwards on the bottom surface of the electromagnetic valve seat mounting hole (33), an inwards recessed positioning groove (44) is formed at one end of the electromagnetic valve seat (4) far away from the convex edge (43), the connecting portion (35) is embedded in the positioning groove (44), the groove wall of the positioning groove (44) abuts against the outer side surface of the connecting portion (35), the air inlet channel (31) extends to the end surface of the connecting portion (35), and one end of the vent hole I (41) far away from the sealing gasket (21b) is located on the bottom surface of the positioning groove (44).
4. The mounting structure of the built-in electromagnetic valve of the vacuum pump according to claim 3, wherein one end of the electromagnetic valve seat (4) having the protruding edge (43) is provided with an electromagnetic valve mounting hole (45), one end of the electromagnetic valve (2) is screwed in the electromagnetic valve mounting hole (45), the bottom surface of the electromagnetic valve mounting hole (45) is provided with a protruding portion (45a) extending outwards, the vent hole I (41) penetrates through the protruding portion (45a) and is located at one end of the end surface of the protruding portion (45a), and the sealing gasket (21b) can abut against the end surface of the protruding portion (45 a).
5. The mounting structure of an internal electromagnetic valve of a vacuum pump according to claim 4, wherein an end surface of the projection (45a) is an annular spherical surface projecting outward.
6. The mounting structure of the built-in electromagnetic valve of the vacuum pump as claimed in claim 4, wherein a first inward mounting groove (46) is formed on the outer side of the electromagnetic valve seat (4) close to the flange (43), a second inward mounting groove (47) is formed on the wall of the positioning groove (44), a first sealing ring (6) is arranged in the first mounting groove (46), and a second sealing ring (7) is arranged in the second mounting groove (47); the electromagnetic valve (2) is sleeved with a third sealing ring (8), the third sealing ring (8) is located in the electromagnetic valve mounting hole (45), and the outer side face of the third sealing ring is abutted to the inner wall of the electromagnetic valve mounting hole (45).
7. The mounting structure of the built-in electromagnetic valve of the vacuum pump according to claim 4, wherein the electromagnetic valve seat (4) is provided with a plurality of second ventilation holes (42), and the plurality of second ventilation holes (42) are distributed at intervals at the joint of the hole wall and the bottom surface of the electromagnetic valve mounting hole (45).
8. The mounting structure of the built-in electromagnetic valve of the vacuum pump according to claim 1, wherein the electromagnetic valve (2) and the pump body (1) are respectively located on both sides of the bracket (3); the electromagnetic valve (2) is a pilot type electromagnetic valve (21), a pilot valve (21a) is arranged in the pilot type electromagnetic valve (21), and the sealing gasket (21b) is fixedly arranged at one end part of the pilot valve (21 a).
CN202021894982.0U 2020-06-24 2020-09-02 Mounting structure of built-in solenoid valve of vacuum pump Active CN212838231U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021205406 2020-06-24
CN2020212054060 2020-06-24

Publications (1)

Publication Number Publication Date
CN212838231U true CN212838231U (en) 2021-03-30

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CN202021894982.0U Active CN212838231U (en) 2020-06-24 2020-09-02 Mounting structure of built-in solenoid valve of vacuum pump
CN202010911952.4A Pending CN111997873A (en) 2020-06-24 2020-09-02 Mounting structure of built-in solenoid valve of vacuum pump

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202010911952.4A Pending CN111997873A (en) 2020-06-24 2020-09-02 Mounting structure of built-in solenoid valve of vacuum pump

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CN111997873A (en) 2020-11-27

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Installation structure of a vacuum pump with built-in solenoid valve

Effective date of registration: 20230625

Granted publication date: 20210330

Pledgee: Wenling sub branch of Postal Savings Bank of China Ltd.

Pledgor: Zhejiang Aite refrigeration equipment Co.,Ltd.

Registration number: Y2023980045308