CN211082177U

CN211082177U - Four-cylinder vacuum pump

Info

Publication number: CN211082177U
Application number: CN201921601758.5U
Authority: CN
Inventors: 朱金华
Original assignee: Dongguan Emiliya Electrical Appliances Co ltd
Current assignee: Dongguan Emiliya Electrical Appliances Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-07-24
Anticipated expiration: 2029-09-24

Abstract

The utility model belongs to the technical field of the vacuum part technique and specifically relates to indicate a four-cylinder vacuum pump, which comprises a housin, double-end motor, two driving mediums and four air pumps, double-end motor installs in the casing, two driving mediums set up respectively in double-end motor's output shaft both ends, every driving medium links two air pumps respectively, every air pump all is provided with extraction opening and gas vent, every air pump is connected with one-way pneumatic valve respectively, the driving medium includes rotation portion and transmission portion, the output shaft of double-end motor is located to the center department of rotation portion, transmission portion sets up in the non-central point of one of them terminal surface of rotation portion and puts, rotation portion and transmission portion integrated into one piece, transmission portion. The utility model drives the transmission part to rotate through the double-end motor, thereby controlling the air pump to exhaust or exhaust through the transmission part; be provided with extraction opening and gas vent respectively at every air pump to let the staff connect each air pump as required, can effectively increase power pressure and operating speed.

Description

Four-cylinder vacuum pump

Technical Field

The utility model belongs to the technical field of vacuum unit technique and specifically relates to indicate a four jar vacuum pumps.

Background

The vacuum pump adopted by the existing small vacuum machine has the following defects: the speed of air extraction is low and the pressure is not enough, so that the vacuum-pumping effect is not enough, and the working efficiency of the vacuum machine is seriously influenced. In the market, the two pumps are connected in series or in parallel to solve the problem, but after the pump is used, the pressure is enough but the speed is insufficient in the series connection mode, and the speed is enough and the pressure is insufficient in the parallel connection mode. That is, no vacuum pump in the market at present can increase the pressure and the speed simultaneously on the premise of not increasing the volume too much.

Disclosure of Invention

The utility model discloses problem to prior art provides a four jar vacuum pumps, can increase power pressure and speed simultaneously under the prerequisite that does not too much increase volume.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a pair of four jar vacuum pumps, including casing, double-end motor, two driving mediums and four air pumps, double-end motor install in the casing, two driving mediums set up respectively in double-end motor's output shaft both ends, two air pumps are connected respectively to every driving medium, and every air pump is provided with extraction opening and gas vent respectively, and every air pump is connected with one-way pneumatic valve respectively, and the driving medium includes rotation portion and transmission portion, and the center department of rotation portion install in double-end motor's output shaft, transmission portion set up in the non-central point of one of them terminal surface of rotation portion puts, rotation portion and transmission portion integrated into one piece, and transmission portion is used for rotating and the switching of control air pump along with.

Further, the air pump includes cylinder body, piston and connecting rod, the cylinder body set up in the casing, the one end of connecting rod is installed in the transmission portion, and the piston is connected in the other end of connecting rod, and the piston slides and sets up in the cylinder body and contradicts with the inside wall of cylinder body, and one-way pneumatic valve sets up in the one end of keeping away from the connecting rod of cylinder body.

Furthermore, the side wall of the transmission part is provided with a positioning part, the connecting rod is sleeved on the positioning part, and the connecting rod is in interference fit with the positioning part.

Preferably, along the length direction of location portion, the lateral wall interval of location portion is provided with a plurality of strengthening rib.

Furthermore, the one-way air valve comprises a valve, a bottom cover and an air stopping pad, the bottom cover is arranged on the cylinder body, the valve is arranged in the bottom cover and positioned between the bottom cover and the piston, the air stopping pad is arranged on the valve, and the air stopping pad is used for controlling the opening and closing of the air suction opening or the air exhaust opening.

Furthermore, the bottom cover is provided with an exhaust tube and an air outlet tube, the exhaust tube is communicated with the exhaust opening, and the air outlet tube is communicated with the exhaust opening.

Further, the thickness of the rotating part is gradually reduced from one side provided with the transmission part to the other side.

Further, the casing includes epitheca and inferior valve, the epitheca with inferior valve lock.

Furthermore, the upper shell and the lower shell are respectively provided with air holes, and the air holes are used for being communicated with the outside to dissipate heat of the double-end motor.

Further, the shell is provided with a silencer, and the silencer is used for eliminating noise generated by the double-end motor in the working process.

The utility model has the advantages that: the utility model drives the transmission part to rotate through the double-end motor, thereby controlling the air pump to exhaust or exhaust through the transmission part; be provided with extraction opening and gas vent respectively at every air pump to let the staff connect each air pump as required, can effectively increase power pressure and operating speed.

Drawings

Fig. 1 is a schematic view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic view of the transmission member of the present invention.

Fig. 4 is an exploded view of the air pump and the air valve of the present invention.

Reference numerals: 1-shell, 2-double-end motor, 3-driving medium, 4-air pump, 5-one-way air valve, 6-silencer, 11-upper shell, 12-lower shell, 13-air vent, 31-rotating part, 32-driving part, 33-positioning part, 41-air exhaust port, 42-air exhaust port, 43-cylinder body, 44-piston, 45-connecting rod, 51-valve, 52-bottom cover, 53-air stop cushion, 331-reinforcing rib, 521-air exhaust pipe, 522-air outlet pipe.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the utility model provides a pair of four-cylinder vacuum pump, including casing 1, double-end motor 2, two driving medium 3 and four air pumps 4, double-end motor 2 install in casing 1, two driving medium 3 set up respectively in double-end motor 2's output shaft both ends, two air pumps 4 are connected respectively to every driving medium 3, and every air pump 4 is provided with extraction opening 41 and gas vent 42 respectively, and every air pump 4 is connected with one-way pneumatic valve 5 respectively, and driving medium 3 includes rotation portion 31 and transmission portion 32, and the center department of rotation portion 31 install in double-end motor 2's output shaft, transmission portion 32 set up in the non-central point of one of them terminal surface of rotation portion 31 puts, rotation portion 31 and transmission portion 32 integrated into one piece, and transmission portion 32 is used for rotating and controlling the switching of air pump 4 along with rotation.

The utility model discloses a

transmission portion

32 and 31 integrated into one piece of rotation portion have effectively promoted the stability of connecting between rotation portion 31 and the transmission portion 32, when rotation portion 31 rotates along with double-end motor 2 in the lump promptly, transmission portion 32 must not take place to break away from after moving for a long time to the stability of driving medium 3 has been promoted.

As shown in fig. 3 and 4, in the present embodiment, the air pump 4 includes a cylinder 43, a piston 44 and a connecting rod 45, the cylinder 43 is disposed in the housing 1, one end of the connecting rod 45 is mounted on the transmission portion 32, the piston 44 is connected to the other end of the connecting rod 45, the piston 44 is slidably disposed in the cylinder 43 and abuts against the inner side wall of the cylinder 43, and the one-way air valve 5 is disposed at one end of the cylinder 43 away from the connecting rod 45. That is, when the double-headed motor 2 works, the transmission member 3 rotates along with the double-headed motor 2 and drives the connecting rod 45 to reciprocate back and forth, if the air pump 4 is used for exhausting air, the one-way air valve 5 blocks the air suction opening 41, that is, when the connecting rod 45 drives the piston 44 to move in the direction of exiting the cylinder 43, air cannot enter the cylinder 43 from the air suction opening 41, and when the connecting rod 45 drives the piston 44 to move in the direction of entering the cylinder 43, the piston 44 presses the air to be exhausted from the air exhaust opening 42; the principle of air pumping by the air pump 4 is substantially the same as the principle of air exhausting by the air pump 4, and the difference is only the setting position of the one-way air valve 5, which is not described herein again.

Specifically, the side wall of the transmission portion 32 is provided with a positioning portion 33, the connecting rod 45 is sleeved on the positioning portion 33, and the connecting rod 45 is in interference fit with the positioning portion 33. Through the setting of location portion 33, guaranteed that connecting rod 45 can not take place not hard up because of the atress problem when moving along with driving medium 3, guaranteed the utility model discloses job stabilization nature.

Preferably, a plurality of ribs 331 are provided at intervals along the longitudinal direction of the positioning portion 33 on the outer side wall of the positioning portion 33. Namely, the reinforcing member is abutted against the connecting rod 45, so that the stability of the fixed connection between the connecting rod 45 and the positioning portion 33 is better.

In the present embodiment, the one-way valve 5 includes a valve 51, a bottom cover 52 and an air stop cushion 53, the bottom cover 52 is installed on the cylinder 43, the valve 51 is disposed in the bottom cover 52 and located between the bottom cover 52 and the piston 44, the air stop cushion 53 is disposed on the valve 51, and the air stop cushion 53 is used for controlling the opening and closing of the pumping port 41 or the exhaust port. Specifically, the bottom cover 52 is provided with an air suction pipe 521 and an air outlet pipe 522, the air suction pipe 521 is communicated with the air suction port 41, and the air outlet pipe 522 is communicated with the air outlet 42. The air stop cushion 53 is used for stopping between the air pumping opening 41 and the air pumping pipe 521 or between the air outlet 42 and the air outlet pipe 522 as required, thereby realizing the action of air pumping or air exhausting of the air pump 4.

In the present embodiment, the thickness of the rotating portion 31 gradually decreases from the side where the transmission portion 32 is installed to the other side, so as to keep the weight of the two sides of the transmission member 3 approximately equal, so that the speed of the transmission member 3 when rotating is more uniform.

In this embodiment, the housing 1 includes an upper housing 11 and a lower housing 12, and the upper housing 11 is fastened to the lower housing 12; it is specific the epitheca 11 with inferior valve 12 is provided with bleeder vent 13 respectively, and bleeder vent 13 is used for switching on with the external world, makes things convenient for the high temperature that double-end motor 2 produced to follow bleeder vent 13 discharge casing 1, has guaranteed that the inside temperature of casing 1 can not be too high to avoid double-end motor 2 to work under high temperature and influenced life.

In this embodiment, the casing 1 is provided with a muffler 6 for eliminating noise emitted by the double-headed motor 2 during operation, thereby preventing noise pollution.

The utility model discloses a theory of operation: when the double-end motor 2 rotates, the transmission pieces 3 at the two ends are driven to rotate, so that the transmission pieces 3 drive the connecting rod 45 to reciprocate, and the piston 44 is driven to reciprocate continuously; the air stop cushion 53 is correspondingly arranged at the exhaust port 42 or the exhaust port 41 to be closed according to the air exhaust or exhaust of the air pump 4. Because the utility model discloses be provided with four air pumps 4, and four 4 accessible pipelines of air pump establish ties and parallelly connected hybrid uses, reach the effect that increases power pressure and speed simultaneously. The connection of the pipes of the air pump 4 is conventional for those skilled in the art, and therefore will not be described herein.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a four jar vacuum pumps, includes casing, double-end motor, two driving mediums and four air pumps, double-end motor install in the casing, two driving mediums set up respectively in double-end motor's output shaft both ends, two air pumps are connected respectively to every driving medium, and every air pump is provided with extraction opening and gas vent respectively, and every air pump is connected with one-way pneumatic valve, its characterized in that respectively: the transmission part comprises a rotating part and a transmission part, the center of the rotating part is arranged on the output shaft of the double-end motor, the transmission part is arranged at the non-center position of one end face of the rotating part, the rotating part and the transmission part are integrally formed, and the transmission part is used for controlling the opening and closing of the air pump along with the rotation of the rotating part.

2. A four-cylinder vacuum pump according to claim 1, wherein: the air pump includes cylinder body, piston and connecting rod, the cylinder body set up in the casing, the one end of connecting rod is installed in the transmission portion, and the piston is connected in the other end of connecting rod, and the piston slides and sets up in the cylinder body and contradicts with the inside wall of cylinder body, and one-way pneumatic valve sets up in the one end of keeping away from the connecting rod of cylinder body.

3. A four-cylinder vacuum pump according to claim 2, wherein: the lateral wall of transmission portion is provided with location portion, and location portion is located to the connecting rod cover, connecting rod and location portion interference fit.

4. A four-cylinder vacuum pump according to claim 3, wherein: along the length direction of location portion, the lateral wall interval of location portion is provided with a plurality of strengthening rib.

5. A four-cylinder vacuum pump according to claim 1, wherein: the one-way air valve comprises a valve, a bottom cover and an air stopping pad, the bottom cover is arranged on the cylinder body, the valve is arranged in the bottom cover and positioned between the bottom cover and the piston, the air stopping pad is arranged on the valve, and the air stopping pad is used for controlling the opening and closing of the air suction opening or the air exhaust opening.

6. A four-cylinder vacuum pump according to claim 5, wherein: the bottom cover is provided with an exhaust tube and an air outlet tube, the exhaust tube is communicated with the exhaust opening, and the air outlet tube is communicated with the exhaust opening.

7. A four-cylinder vacuum pump according to claim 1, wherein: the thickness of the rotating part is gradually reduced from one side provided with the transmission part to the other side.

8. A four-cylinder vacuum pump according to claim 1, wherein: the shell comprises an upper shell and a lower shell, and the upper shell is buckled with the lower shell.

9. A four-cylinder vacuum pump according to claim 8, wherein: the upper shell with the inferior valve is provided with the bleeder vent respectively, thereby the bleeder vent is used for and external the switching on right double-end motor dispels the heat.

10. A four-cylinder vacuum pump according to claim 1, wherein: the shell is provided with a silencer, and the silencer is used for eliminating noise emitted by the double-end motor in the working process.