CN215057989U

CN215057989U - Eight-cylinder vacuum pump

Info

Publication number: CN215057989U
Application number: CN202120509273.4U
Authority: CN
Inventors: 朱金华
Original assignee: Dongguan Emiliya Electrical Appliances Co ltd
Current assignee: Dongguan Emiliya Electrical Appliances Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-12-07
Anticipated expiration: 2031-03-10

Abstract

The utility model relates to the technical field of vacuum components, in particular to an eight-cylinder vacuum pump, which comprises a base and two groups of vacuum units arranged on the base, wherein the two groups of vacuum units are overlapped on the base through a bracket, the vacuum unit comprises a shell, a double-end motor, two transmission parts and four air pumps, wherein the double-end motor is installed in the shell, the two transmission parts are respectively arranged at two ends of an output shaft of the double-end motor, each transmission part is respectively connected with the two air pumps, each air pump is respectively provided with an air pumping port and an air exhaust port, each air pump is respectively connected with a one-way air valve, the transmission parts comprise a rotating part and a transmission part, the center of the rotating part is installed 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 pumps along with the rotation of the rotating part.

Description

Eight-cylinder vacuum pump

Technical Field

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

Background

The vacuum pump adopted in the present small-sized vacuum sealing machine has the following defects: the speed of air suction is low and the pressure is not enough, so that the vacuum pumping effect is not enough, and the working efficiency of the vacuum sealing 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 an eight 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 an eight-cylinder vacuum pump, which comprises a base and two groups of vacuum units erected on the base, wherein the two groups of vacuum units are overlapped on the base through a support, the vacuum units comprise a shell, a double-end motor, two transmission parts and four air pumps, the double-end motor is arranged in the shell, the two transmission parts are respectively arranged at two ends of an output shaft of the double-end motor, each transmission part is respectively connected with the two air pumps, each air pump is respectively provided with an air suction opening and an air exhaust opening, each air pump is respectively connected with a one-way air valve, the one-way air valve is used for controlling the opening and closing of the air suction opening or the air exhaust opening, the transmission parts comprise 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 eccentric position of one end face of the rotating part, and the rotating part and the transmission part are integrally formed, the transmission part is used for controlling the opening and closing of the air pump along with the rotation of the rotation part.

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, extraction opening and gas vent all set up in the 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 is positioned between the bottom cover and the cylinder body, 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 increased 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 an embodiment of the present invention;

FIG. 2 is a schematic view of a vacuum unit according to an embodiment of the present invention;

fig. 3 is an exploded view of the vacuum unit according to the embodiment of the present invention;

FIG. 4 is a schematic view of a transmission member in a vacuum unit according to an embodiment of the present invention;

fig. 5 is an exploded view of the air pump and the air valve in the vacuum unit according to the embodiment of the present invention.

Reference numerals: 1-base, 2-vacuum unit, 21-shell, 22-double-end motor, 23-transmission piece, 24-air pump, 25-one-way air valve, 26-silencer, 211-upper shell, 212-lower shell, 213-breather hole, 231-rotating part, 232-transmission part, 233-positioning part, 241-air suction opening, 242-air outlet, 243-cylinder, 244-piston, 245-connecting rod, 251-valve, 252-bottom cover, 253-air stopping pad, 2331-reinforcing rib, 2521-air suction pipe, 2522-air outlet pipe, 3-support.

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.

Examples

As shown in fig. 1 to 4, the present invention provides an eight-cylinder vacuum pump, which comprises a base 1 and two sets of vacuum units 2 erected on the base 1, wherein the two sets of vacuum units 2 are stacked on the base 1 through a bracket 3, each vacuum unit 2 comprises a housing 21, a double-end motor 22, two transmission members 23 and four air pumps 24, the double-end motor 22 is installed in the housing 21, the two transmission members 23 are respectively disposed at two ends of an output shaft of the double-end motor 22, each transmission member 23 is respectively connected to the two air pumps 24, each air pump 24 is respectively provided with an air pumping port 241 and an air exhaust port 242, each air pump 24 is respectively connected to a one-way air valve 25, the one-way air valve 241 is used for controlling the opening and closing of the air pumping port or the air exhaust port 242, each transmission member 23 comprises a rotating portion 231 and a transmission portion 232, the center of the rotating portion 231 is installed on the output shaft of the double-end motor 22, the transmission portion 232 is disposed at an eccentric position of one end face of the rotating portion 231, the rotating unit 231 is integrally formed with a transmission unit 232, and the transmission unit 232 is configured to control the opening and closing of the air pump 24 in response to the rotation of the rotating unit 231.

The utility model discloses a transmission portion 232 and rotation portion 231 integrated into one piece have effectively promoted the stability of connecting between rotation portion 231 and the transmission portion 232, when rotation portion 231 rotates along with double-end motor 22 in the lump promptly, transmission portion 232 must not take place to break away from after moving for a long time to the stability of driving medium 23 has been promoted.

As shown in fig. 4 and 5, in the present embodiment, the air pump 24 includes a cylinder 243, a piston 244 and a connecting rod 245, the cylinder 243 is disposed on the housing 21, one end of the connecting rod 245 is installed on the transmission portion 232, the piston 244 is connected to the other end of the connecting rod 245, the piston 244 is slidably disposed in the cylinder 243 and is abutted against an inner sidewall of the cylinder 243, the one-way air valve 25 is disposed at one end of the cylinder 243 away from the connecting rod 245, and the air suction port 241 and the air discharge port 242 are both disposed on the cylinder 243. That is, when the double-end motor 22 works, the transmission member 23 rotates with the double-end motor 22 to drive the connecting rod 245 to reciprocate back and forth, if the air pump 24 is used for exhausting air, the one-way air valve 25 blocks the air exhaust opening 241, that is, when the connecting rod 245 drives the piston 244 to move in the direction of exiting the cylinder 243, air cannot enter the cylinder 243 from the air exhaust opening 241, and when the connecting rod 245 drives the piston 244 to move in the direction of entering the cylinder 243, the piston 244 presses the air to be exhausted from the air exhaust opening 242; the principle of air pumping by the air pump 24 is substantially the same as the principle of air pumping by the air pump 24, and the difference is only the setting position of the one-way air valve 25, which is not described herein again.

Specifically, the side wall of the transmission part 232 is provided with a positioning part 233, the connecting rod 245 is sleeved on the positioning part 233, and the connecting rod 245 is in interference fit with the positioning part 233. Through the setting of location portion 233, guaranteed that connecting rod 245 can not take place not hard up because of the atress problem when following the action of driving medium 23, guaranteed the utility model discloses the stability of work.

Preferably, a plurality of ribs 2331 are provided at intervals along the longitudinal direction of the positioning part 233 on the outer side wall of the positioning part 233. That is, the reinforcing rib 2331 is abutted against the connecting rod 245, so that frictional resistance is increased, and the stability of the fixed connection between the connecting rod 245 and the positioning part 233 is improved.

In the present embodiment, the one-way valve 25 includes a valve 251, a bottom cover 252 and an air stop pad 253, the bottom cover 252 is installed in the cylinder 243, the valve 251 is disposed in the bottom cover 252 and located between the bottom cover 252 and the cylinder 243, the air stop pad 253 is disposed on the valve 251, and the air stop pad 253 is used for controlling the opening and closing of the pumping port 241 or the exhaust port 242. Specifically, the bottom cover 252 is provided with an air exhaust tube 2521 and an air outlet tube 2522, the air exhaust tube 2521 is communicated with the air exhaust opening 241, and the air outlet tube 2522 is communicated with the air exhaust opening 242. The air stop pad 253 is used for stopping between the air pumping opening 241 and the air pumping tube 2521 or between the air outlet 242 and the air outlet tube 2522 as required, so that the air pump 24 only performs air pumping or air exhausting actions.

In this embodiment, the thickness of the rotating portion 231 gradually increases from the side where the transmission portion 232 is installed to the other side, so as to keep the weight of the two sides of the transmission member 23 approximately equal, and the speed of the transmission member 23 during rotation is more uniform.

In the embodiment, the housing 21 includes an upper housing 211 and a lower housing 212, the upper housing 211 is fastened to the lower housing 212; specifically, the upper shell 211 and the lower shell 212 are respectively provided with the air holes 213, the air holes 213 are used for communicating with the outside, high temperature generated by the double-end motor 22 is conveniently discharged out of the shell 21 from the air holes 213, the temperature inside the shell 21 is guaranteed not to be too high, and therefore the double-end motor 22 is prevented from working at high temperature and influencing the service life.

In the present embodiment, the casing 21 is provided with a muffler 26 for eliminating noise generated by the double-headed motor 22 during operation, thereby preventing noise pollution.

The utility model discloses a theory of operation: when the double-end motor 22 rotates, the transmission members 23 at the two ends are driven to rotate, so that the transmission members 23 drive the connecting rod 245 to reciprocate, and the piston 244 is driven to reciprocate continuously; the air stop pad 253 is correspondingly arranged at the air outlet 242 or the air extraction opening 241 for sealing according to the air extraction or air extraction of the air pump 24. Because the utility model discloses be provided with two sets of vacuum unit 2, every vacuum unit 2 of group has four air pumps 24, and four air pump 24 accessible pipelines establish ties and parallelly connected the mixed use, reach the effect that increases power pressure and speed simultaneously. The connection of the air pump 24 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. An eight jar vacuum pumps which characterized in that: comprises a base and two groups of vacuum units arranged on the base in a erecting way, the two groups of vacuum units are overlapped on the base through a bracket, the vacuum unit comprises a shell, a double-end motor, two transmission parts and four air pumps, wherein the double-end motor is arranged in the shell, the two transmission parts are respectively arranged at two ends of an output shaft of the double-end motor, each transmission part is respectively connected with the two air pumps, each air pump is respectively provided with an air pumping port and an air exhaust port, each air pump is respectively connected with a one-way air valve, the one-way air valve is used for controlling the opening and closing of the air pumping opening or the air exhaust opening, the transmission part comprises a rotating part and a transmission part, the center of the rotating part is installed on an output shaft of the double-end motor, the transmission part is arranged at the eccentric 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. The eight-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, extraction opening and gas vent all set up in the cylinder body.

3. The eight-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. The eight-cylinder vacuum pump of 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. The eight-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 cylinder body, 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. The eight-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. The eight-cylinder vacuum pump according to claim 1, wherein: the thickness of the rotating part is gradually increased from one side provided with the transmission part to the other side.

8. The eight-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. The eight-cylinder vacuum pump of claim 8, wherein: the upper shell and the lower shell are respectively provided with air holes.

10. The eight-cylinder vacuum pump according to claim 1, wherein: the housing is provided with a muffler.