CN218093349U

CN218093349U - Reciprocating vacuum pump

Info

Publication number: CN218093349U
Application number: CN202221549013.0U
Authority: CN
Inventors: 史富文; 司轩毓
Original assignee: Zibo Zhongli Electromechanical Co ltd
Current assignee: Zibo Zhongli Electromechanical Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-12-20
Anticipated expiration: 2032-06-21

Abstract

The utility model relates to a vacuum pump technical field discloses a reciprocating vacuum pump, including the pump main part, the equal threaded connection in upper end has the bolt in the base both sides, the equal fixedly connected with clamp plate of one end that the bolt is close, base upper end both sides are all rotated and are connected with the shock absorber, upper portion all is provided with damping spring in the shock absorber periphery, air inlet lower part left end is rotated and is connected with first separation blade, gas vent upper portion right-hand member is rotated and is connected with the second separation blade. The utility model discloses in, be connected base and pump main part through the shock absorber, be provided with damping spring on the shock absorber, play the purpose of shock attenuation buffering, improved life cycle, drive first separation blade and rotate to the downside when the piston downstream to open the air inlet and pass through admission valve suction gas, drive second separation blade and rotate to the upside when the piston upward movement, thereby open the gas vent and pass through discharge valve and with gas outgoing, improved the leakproofness.

Description

Reciprocating vacuum pump

Technical Field

The utility model relates to a vacuum pump technical field especially relates to a reciprocating vacuum pump.

Background

A reciprocating vacuum pump, also called a piston vacuum pump, is a dry vacuum pump that sucks and discharges gas by reciprocating a piston in a cylinder.

Chinese patent document CN212803499U discloses a reciprocating vacuum pump, including the pump body and cylinder main part, both ends right side position department is provided with the bearing cap around the pump body, pump body front end left side position department is provided with the sealed lid of observation window, left side position department is provided with lubricating oil feeding mouth device in the pump body upper end, because install just removable band pulley, and anticreep ring post passes through spring clip post and card hole formula wheel hub fixed connection, so when the conveyer belt damages, through carrying out dismouting work to anticreep ring post and card hole formula wheel hub, make things convenient for the staff to change new conveyer belt, also avoid the damage of anticreep ring post simultaneously, will reduce the spoilage of equipment like this, improve staff's change efficiency, in addition when the anticreep ring post damages, carry out dismouting work through anticreep ring post and card hole formula wheel hub, just can more the newer conveyer belt, and other undamaged part can continue to use, just so saved the replacement cost, but this vacuum pump has two shortcomings in the in-service use, and the shock attenuation effect is poor, the long-term shock produced the sealed operation, the relatively poor operation, reciprocating vacuum pump is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a reciprocating vacuum pump.

In order to realize the purpose, the utility model adopts the following technical scheme: the utility model provides a reciprocating vacuum pump, includes the pump main part, lower part block is in base upper end middle part in the pump main part, the equal threaded connection in upper end has the bolt in the base both sides, the equal fixedly connected with clamp plate of the close one end of bolt, base upper end both sides are all rotated and are connected with the shock absorber, upper portion all is provided with damping spring in the shock absorber periphery, the one end that the base was kept away from to the shock absorber rotates respectively and connects at pump main part both ends middle part, the lower part is provided with the carousel in the pump main part, carousel front end one side is rotated and is connected with the crank rocker, crank rocker top fixedly connected with piston, upper portion left side is provided with the air intake chamber in the pump main part, air intake chamber lower extreme middle part is provided with the air inlet, air inlet lower part left end is rotated and is connected with first separation blade, air inlet lower extreme left side fixedly connected with first stopper, upper portion right side is provided with the exhaust chamber in the pump main part, exhaust chamber lower extreme middle part is provided with the gas vent, gas vent upper portion right-hand member rotates and is connected with second separation blade, gas vent upper end right side fixedly connected with second stopper.

As a further description of the above technical solution:

a shock pad is arranged between the base and the pump main body.

As a further description of the above technical solution:

the pressing plates are all connected in the sliding grooves in a sliding mode, and one ends, close to each other, of the pressing plates are all fixedly connected with rubber pads.

As a further description of the above technical solution:

and a sealing ring is arranged in the middle of the periphery of the piston.

As a further description of the above technical solution:

and an air inlet valve is arranged in the middle of the left side of the air inlet cavity.

As a further description of the above technical solution:

and an exhaust valve is arranged in the middle of the upper side of the exhaust chamber.

As a further description of the above technical solution:

the piston is connected to the middle upper part in the pump main body in a sliding mode.

As a further description of the above technical solution:

the crank rocker penetrates through and is connected to the middle of the limiting part in a sliding mode, and the limiting part is fixedly connected to the middle in the pump main body.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, at first place the pump main part in the base, reduce its operation through the shock pad and the impact force between the base, drive the clamp plate through revolving wrong bolt and support in pump main part both sides, tentatively fix its lower part, be connected the base with the pump main part through the shock absorber at last, upper portion is provided with damping spring in the shock absorber to play the purpose of shock attenuation buffering, improved the life cycle of pump main part, and the installation is simple and convenient.

2. The utility model discloses in, it rotates to drive the carousel through outside transmission assembly, thereby make the crank rocker drive the piston and be reciprocating motion, drive first separation blade when the piston downstream and rotate to the downside until supporting on first stopper, thereby open the air inlet and pass through the admission valve and inhale gas, first separation blade resets and seals the air inlet when the piston upward movement, it rotates until supporting on the second stopper to drive the upside of second separation blade simultaneously, thereby open the gas vent and pass through discharge valve with gas outgoing, this reciprocating vacuum pump's leakproofness has been improved, and the operation is stable.

Drawings

Fig. 1 is a front sectional view of a reciprocating vacuum pump according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is an enlarged view of fig. 1 at B.

Illustration of the drawings:

1. a pump body; 2. a shock pad; 3. a base; 4. a bolt; 5. a chute; 6. pressing a plate; 7. a rubber pad; 8. a shock absorber; 9. a damping spring; 10. a turntable; 11. a crank rocker; 12. a piston; 13. a seal ring; 14. an air intake chamber; 15. an intake valve; 16. an air inlet; 17. a first baffle plate; 18. a first stopper; 19. an exhaust chamber; 20. an exhaust valve; 21. an exhaust port; 22. a second baffle plate; 23. a second limiting block; 24. and a limiting member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a reciprocating vacuum pump comprises a pump main body 1, the middle lower part of the pump main body 1 is clamped in the middle of the upper end of a base 3, the upper ends of the two sides of the base 3 are respectively in threaded connection with a bolt 4, one end close to the bolt 4 is fixedly connected with a pressing plate 6, the two sides of the upper end of the base 3 are respectively in rotary connection with a shock absorber 8, the middle upper part of the periphery of the shock absorber 8 is respectively in rotary connection with the middle of the two ends of the pump main body 1, the pump main body 1 is firstly placed in the base 3, the pressing plates 6 are pressed against the two sides of the pump main body 1 by screwing the bolts 4, the lower part of the pump main body is preliminarily fixed, the base 3 is finally connected with the pump main body 1 through the shock absorber 8, the middle upper part of the shock absorber 8 is provided with the shock absorbing spring 9, thereby achieving the purpose of shock absorbing and buffering, the service cycle of the pump main body 1 is prolonged, the installation is simple and convenient, the lower part in the pump main body 1 is provided with a turntable 10, a crank rocker 11 is rotatably connected to one side of the front end of the rotary table 10, a piston 12 is fixedly connected to the top end of the crank rocker 11, an air inlet chamber 14 is arranged on the left side of the upper portion in the pump body 1, an air inlet 16 is arranged in the middle of the lower end of the air inlet chamber 14, a first baffle 17 is rotatably connected to the left end of the lower portion of the air inlet 16, a first limiting block 18 is fixedly connected to the left side of the lower end of the air inlet 16, an exhaust chamber 19 is arranged on the right side of the upper portion in the pump body 1, an exhaust port 21 is arranged in the middle of the lower end of the exhaust chamber 19, a second baffle 22 is rotatably connected to the right end of the upper portion of the exhaust port 21, a second limiting block 23 is fixedly connected to the right end of the exhaust port 21, the rotary table 10 is driven to rotate by an external transmission component, so that the crank rocker 11 drives the piston 12 to do reciprocating motion, when the piston 12 moves downwards, the first baffle 17 is driven to rotate downwards until the piston abuts against the first limiting block 18, therefore, the air inlet 16 is opened, air is sucked through the air inlet valve 15, the first blocking piece 17 resets and seals the air inlet 16 when the piston 12 moves upwards, and meanwhile, the second blocking piece 22 is driven to rotate upwards until the second blocking piece abuts against the second limiting block 23, so that the air outlet 21 is opened, and the air is exhausted through the exhaust valve 20, the sealing performance of the reciprocating vacuum pump is improved, and the operation is stable.

Be provided with shock pad 2 between base 3 and the pump main part 1, reduce its when operation and the impact force between the base 3 through shock pad 2, the equal sliding connection of clamp plate 6 is in spout 5, guarantee that clamp plate 6 can normally move under bolt 4's drive, the equal fixedly connected with rubber pad 7 of one end that clamp plate 6 is close, it is better to improve frictional force and make fixed effect, piston 12 periphery middle part is provided with sealing washer 13, further improve the leakproofness, 14 left side middle parts of intake chamber are provided with admission valve 15, be used for breathing in, 19 upside middle parts of exhaust chamber are provided with discharge valve 20, be used for the exhaust gas, piston 12 sliding connection is upper portion in pump main part 1, guarantee structural rationality promptly, crank rocker 11 runs through and sliding connection is at locating part 24 middle part, guarantee crank rocker 11's normal concertina movement promptly, locating part 24 fixed connection is middle part in pump main part 1.

The working principle is as follows: the pump body 1 is placed in the base 3, impact force between the pump body 1 and the base 3 during operation is reduced through the shock absorption pad 2, the pressing plate 6 is driven to abut against two sides of the pump body 1 through the screwing bolt 4, the lower portion of the pump body 1 is preliminarily fixed, finally the base 3 is connected with the pump body 1 through the shock absorber 8, the shock absorption spring 9 is arranged on the middle upper portion of the shock absorber 8, the purpose of shock absorption and buffering is achieved, the service cycle of the pump body 1 is prolonged, the installation is simple and convenient, the rotary disc 10 is driven to rotate through the external transmission assembly, the crank rocker 11 drives the piston 12 to do reciprocating motion, the first blocking piece 17 is driven to rotate downwards until abutting against the first limiting block 18 when the piston 12 moves downwards, the air inlet 16 is opened, air is sucked through the air inlet valve 15, the first blocking piece 17 resets to seal the air inlet 16 when the piston 12 moves upwards, the second blocking piece 22 is driven to rotate upwards until abutting against the second limiting block 23, the air outlet 21 is opened, and air is discharged through the exhaust valve 20, the sealing performance of the reciprocating vacuum pump is improved, and the reciprocating type vacuum pump is stable in operation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A reciprocating vacuum pump comprising a pump body (1), characterized in that: the middle lower part of the pump main body (1) is clamped in the middle of the upper end of a base (3), the upper ends of the two sides of the base (3) are respectively in threaded connection with a bolt (4), one end of each bolt (4) close to each other is fixedly connected with a pressing plate (6), the two sides of the upper end of the base (3) are respectively in rotary connection with a shock absorber (8), the middle upper part of the periphery of each shock absorber (8) is provided with a damping spring (9), one end of each shock absorber (8) far away from the base (3) is respectively in rotary connection with the middle of the two ends of the pump main body (1), the lower part of the pump main body (1) is provided with a rotary table (10), one side of the front end of the rotary table (10) is in rotary connection with a crank rocker (11), the top end of the crank rocker (11) is fixedly connected with a piston (12), the left side of the upper part of the pump main body (1) is provided with an air inlet chamber (14), the middle of the lower end of the air inlet chamber (14) is provided with an air inlet (16), the lower part of the air inlet chamber (16) is in rotary connection with a first blocking piece (17), the left end of the air inlet (16) is in rotary connection with a first blocking piece (18), the left end of the lower part of the air inlet (16) is fixedly connected with a first blocking piece (18), the left end of the air outlet (21) is provided with a second blocking piece (21), the right end of the exhaust port (21) is provided with a second blocking piece (21) and a second blocking piece (21), and a second limiting block (23) is fixedly connected to the right side of the upper end of the exhaust port (21).

2. A reciprocating vacuum pump according to claim 1, wherein: a shock pad (2) is arranged between the base (3) and the pump main body (1).

3. A reciprocating vacuum pump according to claim 1, wherein: the pressing plates (6) are all connected in the sliding grooves (5) in a sliding mode, and the ends, close to the pressing plates (6), are all fixedly connected with rubber pads (7).

4. A reciprocating vacuum pump according to claim 1, wherein: and a sealing ring (13) is arranged in the middle of the periphery of the piston (12).

5. A reciprocating vacuum pump according to claim 1, wherein: and an air inlet valve (15) is arranged in the middle of the left side of the air inlet chamber (14).

6. A reciprocating vacuum pump according to claim 1, wherein: and an exhaust valve (20) is arranged in the middle of the upper side of the exhaust chamber (19).

7. A reciprocating vacuum pump according to claim 1, wherein: the piston (12) is connected to the middle upper part in the pump main body (1) in a sliding mode.

8. A reciprocating vacuum pump according to claim 1, wherein: the crank rocker (11) penetrates through and is connected to the middle of the limiting piece (24) in a sliding mode, and the limiting piece (24) is fixedly connected to the middle inside the pump main body (1).