CN221146166U

CN221146166U - Pneumatic grease pump

Info

Publication number: CN221146166U
Application number: CN202322984549.6U
Authority: CN
Inventors: 蔡小波; 高杨才
Original assignee: Yuhuan Caihui Intelligent Technology Co ltd
Current assignee: Yuhuan Caihui Intelligent Technology Co ltd
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2024-06-14
Anticipated expiration: 2033-11-03

Abstract

The utility model belongs to the technical field of grease filling, in particular to a pneumatic grease pump which comprises a pump body, wherein a pump cavity, an oil inlet channel and an oil outlet channel are arranged in the pump body, an oil storage barrel and an air cylinder are arranged on the pump body, a piston rod of the air cylinder is slidably arranged in the pump cavity, a piston is arranged in the oil storage barrel in a sliding manner, an inner cavity of the oil storage barrel is divided into an air cavity and an oil cavity for containing grease by the piston, the air cavity is communicated with the outside of the oil storage barrel, the inner end of the oil inlet channel is communicated with the pump cavity, the outer end of the oil inlet channel is communicated with the oil cavity, the inner end of the oil outlet channel is communicated with an oil pipe, a first check valve is arranged on the oil inlet channel, and a second check valve is arranged on the oil outlet channel. The pneumatic grease pump does not need to be provided with a spring, and has the advantages of no spring failure problem and long service life.

Description

Pneumatic grease pump

Technical field:

The utility model belongs to the technical field of grease filling, and particularly relates to a pneumatic grease pump.

The background technology is as follows:

The pneumatic grease pump is a lubrication device which generates power through air pressure, and the working principle is that compressed air is utilized to generate driving force, so that grease is sucked from an oil tank and conveyed to a lubrication point through an oil pipe, and normal operation of machines and devices is ensured. The pneumatic grease pump is widely applied to the industries of machine manufacture, automobile maintenance, engineering machinery, textile, papermaking, food, medicine and the like.

The utility model patent CN202252754U discloses a centralized lubrication pump for heavy machinery, which comprises a pneumatic motor, a cylinder combination, an oil storage tank, an unloading valve and a distribution element, wherein the pneumatic motor is connected with the cylinder combination through a reversing valve, a grease filling port on the cylinder combination is connected with the oil storage tank, and a pressure oil disc structure with a spring is arranged in the oil storage tank. The cylinder combination is also provided with an exhaust plug with a one-way valve and an oil outlet, and the oil outlet is communicated with a lubrication point through the distribution element; the inlet and the outlet of the unloading valve are respectively connected with the cylinder combination and the pneumatic motor through pipelines, and the pneumatic motor is provided with an air inlet.

The centralized lubrication pump for heavy machinery has the following defects: the oil pressing disc with the spring is arranged in the oil storage tank, and the spring is easy to lose elasticity to cause failure along with the increase of the using times, so that the service life of the lubricating pump is short.

The invention comprises the following steps:

the utility model aims to provide a pneumatic grease pump which does not need to be provided with a spring and has no problem of failure of the spring, and the pneumatic grease pump has long service life.

The utility model is realized in the following way:

The utility model provides a pneumatic grease pump, includes the pump body, be equipped with pump cavity, oil feed passageway and play oil channel in the pump body, be equipped with oil storage bucket and cylinder on the pump body, the piston rod of cylinder slides and establishes at the pump cavity, be equipped with the piston in the oil storage bucket, the piston separates into the oil pocket that air cavity and is used for splendid attire grease with oil storage bucket inner chamber, air cavity and the outside intercommunication of oil storage bucket, the oil feed passageway inner intercommunication pump cavity, outer end intercommunication oil pocket, go out oil passageway inner intercommunication pump cavity, outer end connection oil pipe, be equipped with check valve one on the oil feed passageway, be equipped with check valve two on the play oil channel.

In the pneumatic grease pump, the piston comprises a piston body and a sealing ring sleeved on the piston body.

In the pneumatic grease pump, the oil storage barrel comprises a barrel body arranged on the pump body, one end of the barrel body, far away from the pump body, is provided with an opening, and is covered with a barrel cover, and the barrel cover is provided with a communication channel for communicating the air cavity with the outside of the oil storage barrel.

In the pneumatic grease pump, more than two communication channels are uniformly distributed on the circumference of the communication channel.

In the pneumatic grease pump, the barrel cover comprises a cover part arranged at the opening of the barrel body and a connecting part sleeved outside the barrel body, the communication channel comprises a first channel arranged at the cover part and a second channel arranged at the connecting part, one end of the first channel is communicated with the air cavity, the other end of the first channel is communicated with the second channel, and the outer end of the second channel is communicated with the outside of the oil storage barrel.

In the pneumatic grease pump, the connecting part is screwed outside the barrel body.

In the pneumatic grease pump, the first channel is formed by the inward concave of the inner end surface of the cover part, and the second channel is formed by the inward concave of the inner side wall of the connecting part.

In the pneumatic grease pump, the oil storage barrel is a hollow cylinder, the first channel is arranged along the radial direction of the oil storage barrel, and the second channel is arranged along the axial direction of the oil storage barrel.

In the pneumatic grease pump, one end of the barrel body, which is close to the pump body, is opened, and the oil cavity consists of the barrel body and the pump body.

In the pneumatic grease pump, the barrel body is in threaded connection with the pump body.

In the pneumatic grease pump, the pump body is provided with the exhaust channel communicated with the oil outlet channel and the outside of the pump body, and the outer end of the exhaust channel is detachably connected with a plug.

In the pneumatic grease pump described above, the detachable connection manner of the plug may be: the plug is screwed on the pump body.

In the above pneumatic grease pump, the detachable connection mode of the plug may further be: the plug is tightly matched with the pump body.

In the pneumatic grease pump, the exhaust channel comprises a horizontal channel and a vertical channel, one end of the horizontal channel is communicated with the oil outlet channel, the other end of the horizontal channel is communicated with the vertical channel, the outer end of the vertical channel is communicated with the outside of the pump body, and the plug is arranged at the outer end of the vertical channel.

In the pneumatic grease pump, the oil outlet channel comprises a small hole section positioned on the inner side and a large hole section positioned on the outer side, the two check valves comprise balls and valve seats, springs for moving the balls to one side of the small hole section by elastic force are arranged between the balls and the valve seats, the balls open and seal the small hole section, and the exhaust channel is connected to the large hole section and positioned between the balls and the valve seats.

In the pneumatic grease pump, an oil injection channel is arranged on the pump body, one end of the oil injection channel is communicated with the oil cavity, the other end of the oil injection channel is communicated with the outside of the pump body, one end of the oil injection channel, which is connected with the outside of the pump body, is provided with an oil injection nozzle, and a filter screen is arranged on the oil injection channel on the inner side of the oil injection nozzle.

In the pneumatic grease pump, the grease nipple is screwed on the pump body.

In the pneumatic grease pump, the oil injection channel comprises an oil hole section and a mounting section, the diameter of the oil hole section is smaller than that of the mounting section, and the oil injection nozzle and the filter screen are arranged in the mounting section.

In the pneumatic grease pump, the oil inlet channel and the oil outlet channel are coaxially arranged and are respectively positioned at two sides of the pump cavity, and the oil inlet channel and the oil outlet channel are arranged at one side of the pump cavity far away from the cylinder.

In the pneumatic grease pump, the barrel body is made of transparent materials.

Compared with the prior art, the utility model has the outstanding advantages that:

1. According to the utility model, the inner cavity of the oil storage barrel is divided into the air cavity and the oil cavity by the piston, the pressure intensity of the pump cavity is changed by the piston rod of the air cylinder, and grease in the oil cavity is pushed into the pump cavity by the pressure difference between the atmospheric pressure and the pressure intensity in the pump cavity, so that a spring is not required to be installed, the problem of failure of the spring is avoided, and the service life of the pneumatic grease pump is long;

2. The communication channel comprises a first channel arranged on the cover part and a second channel arranged on the connecting part, one end of the first channel is communicated with the air cavity, the other end of the first channel is communicated with the second channel, and the outer end of the second channel is communicated with the outside of the oil storage barrel, so that rainwater is effectively prevented from entering the air cavity;

3. the pump body is provided with the exhaust channel communicated with the oil outlet channel and the outside of the pump body, the outer end of the exhaust channel is detachably connected with a plug, and the air in the pump cavity is discharged and effectively prevented from entering the oil pipe through the oil outlet channel.

Description of the drawings:

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a second perspective view of the present utility model;

FIG. 3 is an exploded view of the present utility model;

FIG. 4 is a cross-sectional view of the present utility model;

Fig. 5 is another cross-sectional view of the present utility model.

Reference numerals: 1. a pump body; 2. a pump chamber; 3. an oil inlet passage; 4. an oil outlet channel; 4a, small hole sections; 4b, a macroporous section; 5. an oil storage barrel; 5a, a barrel body; 5b, a barrel cover; 5b1, a cover part; 5b2, a connection portion; 6. a cylinder; 7. a piston rod; 8. a piston; 8a, a piston body; 8b, a sealing ring; 9. an air chamber; 10. an oil chamber; 11. a first check valve; 12. a second check valve; 12a, balls; 12b, valve seat; 13. a communication passage; 13a, channel one; 13b, channel two; 14. an exhaust passage; 14a, horizontal channels; 14b, vertical channels; 15. blocking; 16. an oiling channel; 16a, an oil hole section; 16b, a mounting section; 17. and an oil filling nozzle.

The specific embodiment is as follows:

The utility model is further described below with reference to the specific examples, see fig. 1-5:

The utility model provides a pneumatic grease pump, includes pump body 1, be equipped with pump cavity 2, oil feed passageway 3 and play oil passageway 4 in the pump body 1, be equipped with oil storage barrel 5 and cylinder 6 on the pump body 1, the piston rod 7 slip of cylinder 6 is established in pump cavity 2, be equipped with piston 8 in the oil storage barrel 5, piston 8 separates into air cavity 9 and the oil pocket 10 that is used for splendid attire grease with oil storage barrel 5 inner chamber, air cavity 9 and the outside intercommunication of oil storage barrel 5, the inner intercommunication pump cavity 2 of oil feed passageway 3, outer end intercommunication oil pocket 10, the oil pipe is connected to outer end intercommunication pump cavity 2, be equipped with check valve one 11 on the oil feed passageway 3, be equipped with check valve two 12 on the oil passageway 4.

The working principle of the utility model is as follows: as shown in fig. 1-5, the piston rod 7 of the control cylinder 6 moves in a direction away from the pump cavity 2, the pressure in the pump cavity 2 becomes small, the atmospheric pressure of the air cavity 9 pushes the piston 8 to the oil cavity 10 to squeeze grease, the grease opens the one-way valve I11 to enter the pump cavity 2 through the oil inlet channel 3, and the one-way valve II 12 is closed at the moment; the piston rod 7 of the control cylinder 6 moves towards the pump cavity 2, grease in the pump cavity 2 is extruded, the grease opens the one-way valve II 12, enters the oil pipe through the oil outlet channel 4 and is conveyed to a lubrication point through the oil pipe, and at the moment, the one-way valve I11 is closed.

According to the utility model, the inner cavity of the oil storage barrel 5 is divided into the air cavity 9 and the oil cavity 10 by the piston, the pressure intensity of the pump cavity 2 is changed by the piston rod 7 of the air cylinder 6, and the grease in the oil cavity 10 is pushed into the pump cavity 2 by the pressure difference between the atmospheric pressure and the pressure intensity in the pump cavity 2, so that a spring is not required to be installed, the problem of failure of the spring is avoided, and the service life of the pneumatic grease pump is long.

The structure of the piston 8: as shown in fig. 4 and 5, the piston 8 includes a piston body 8a and a sealing ring 8b sleeved on the piston body 8 a.

The structure of the oil storage tank 5: as shown in fig. 1-5, the oil storage barrel 5 comprises a barrel body 5a arranged on the pump body 1, one end of the barrel body 5a far away from the pump body 1 is opened, a barrel cover 5b is covered at the opening, and a communication channel 13 for communicating the air cavity 9 with the outside of the oil storage barrel 5 is arranged on the barrel cover 5 b. The barrel cover 5b can effectively prevent dust from entering the air cavity 9 under the condition that the air cavity 9 is communicated with the outside of the oil storage barrel 5.

Further, more than two communication channels 13 are uniformly distributed on the circumference. In this embodiment, four communication channels 13 are uniformly distributed on the circumference.

In order to prevent rainwater from entering the air cavity 13 through the communication channel 13 when the rainwater is raining, the barrel cover 5b comprises a cover part 5b1 covered at the opening of the barrel body 5a and a connecting part 5b2 sleeved outside the barrel body 5a, the communication channel 13 comprises a first channel 13a arranged at the cover part 5b1 and a second channel 13b arranged at the connecting part 5b2, one end of the first channel 13a is communicated with the air cavity 9, the other end is communicated with the second channel 13b, and the outer end of the second channel 13b is communicated with the outside of the oil storage barrel 5. When the novel rainwater storage device is used, the oil storage cavity 5 is located above the pump body 1, the barrel cover 5b is located above the barrel body 5a, and the second channel 13b is arranged downwards, so that rainwater is effectively prevented from entering.

The connection mode of the barrel cover 5b and the barrel body 5a is as follows: the connecting part 5b2 is screwed outside the barrel body 5 a. Simple structure, easy to assemble.

Further, the first channel 13a is formed by the concave inner surface of the cover portion 5b1, and the second channel 13b is formed by the concave inner wall of the connecting portion 5b 2.

Preferably, the oil storage barrel 5 is a hollow cylinder, the first channel 13a is arranged along the radial direction of the oil storage barrel 5, and the second channel 13b is arranged along the axial direction of the oil storage barrel 5.

In order to avoid oil leakage, the barrel 5a is close to an opening of one end of the pump body 1, and the oil cavity 10 is composed of the barrel 5a and the pump body 1.

The connection mode of the barrel 5a and the pump body 1 is as follows: the barrel body 5a is screwed on the pump body 1. Simple structure, easy to assemble.

In order to discharge the air in the pump cavity 2, as shown in fig. 1-4, the pump body 1 is provided with an exhaust channel 14 which is communicated with the oil outlet channel 4 and the outside of the pump body 1, and the outer end of the exhaust channel 14 is detachably connected with a plug 15. When the pump is used for the first time, the plug 15 is removed, the piston rod 7 of the cylinder 6 moves towards the pump cavity 2, gas in the pump cavity 2 is discharged to the outside of the pump body 1 through the exhaust channel 14 of the oil outlet channel 4, and then the plug 15 is installed to plug the exhaust channel 14. Air in the pump chamber 2 is prevented from entering the oil pipe through the oil outlet channel 4.

Removable connection of plug 15: the plug 15 is screwed on the pump body 1.

The structure of the exhaust passage 14: as shown in fig. 4, the exhaust passage 14 includes a horizontal passage 14a and a vertical passage 14b, one end of the horizontal passage 14a is communicated with the oil outlet passage 4, the other end is communicated with the vertical passage 14b, the outer end of the vertical passage 14b is communicated with the outside of the pump body 1, and the plug 15 is disposed at the outer end of the vertical passage 14 b.

Mounting structure of the check valve two 12 and the exhaust passage 14: the oil outlet channel 4 comprises a small hole section 4a positioned on the inner side and a large hole section 4b positioned on the outer side, the second check valve 12 comprises a ball 12a and a valve seat 12b which are arranged on the large hole section 4b, a spring for moving the ball 12a to one side of the small hole section 4a by elasticity is arranged between the ball 12a and the valve seat 12b, the ball 12a opens and seals the small hole section 4a, and the exhaust channel 14 is connected to the large hole section 4b and is positioned between the ball 12a and the valve seat 12 b.

Structure of the oil filling passage 16: an oiling channel 16 is arranged on the pump body 1, one end of the oiling channel 16 is communicated with the oil cavity 10, the other end of the oiling channel 16 is communicated with the outside of the pump body 1, one end of the oiling channel 16 connected with the outside of the pump body 1 is provided with an oiling nozzle 17, and a filter screen is arranged on the oiling channel 16 at the inner side of the oiling nozzle 17. When oiling, the oiling nozzle 17 is opened, and grease enters the oil cavity 10 through the oiling nozzle 17 and the oiling channel 16; after the oiling is completed, the nozzle 17 is closed.

Mounting structure of the oil nozzle 17: the oil filling nozzle 17 is screwed on the pump body 1.

Structure of the oil filling passage 16: as shown in fig. 5, the oil filling passage 16 includes an oil hole section 16a and a mounting section 16b, the diameter of the oil hole section is smaller than that of the mounting section 16b, and the oil filling nozzle 17 and the filter screen are disposed in the mounting section 16 b.

Still further, the oil inlet channel 3 and the oil outlet channel 4 are coaxially arranged and are respectively positioned at two sides of the pump cavity 2, the oil inlet channel 3 and the oil outlet channel 4 are arranged at one side of the pump cavity 2 far away from the cylinder 6, and the oil outlet and oil inlet effects of the pump cavity 2 are good.

In order to facilitate observation of the remaining condition of the grease in the tub 5a, the tub 5a is made of a transparent material.

The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model, therefore: all equivalent changes in shape, structure and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A pneumatic grease pump, characterized in that: including pump body (1), be equipped with pump cavity (2), oil feed passageway (3) and play oil passageway (4) in pump body (1), be equipped with oil storage barrel (5) and cylinder (6) on pump body (1), piston rod (7) of cylinder (6) are slided and are established in pump cavity (2), be equipped with piston (8) in oil storage barrel (5), piston (8) separate into air cavity (9) and be used for splendid attire grease oil pocket (10) with oil storage barrel (5) inner chamber, air cavity (9) and oil storage barrel (5) outside intercommunication, oil feed passageway (3) inner intercommunication pump cavity (2), outer end intercommunication oil pocket (10), oil feed passageway (4) inner intercommunication pump cavity (2), outer end connecting oil pipe, be equipped with check valve one (11) on oil feed passageway (3), be equipped with check valve two (12) on oil discharge passageway (4).

2. A pneumatic grease pump according to claim 1, wherein: the oil storage barrel (5) comprises a barrel body (5 a) arranged on the pump body (1), one end of the barrel body (5 a) far away from the pump body (1) is opened, a barrel cover (5 b) is arranged at the opening, and a communication channel (13) for communicating the air cavity (9) with the outside of the oil storage barrel (5) is arranged on the barrel cover (5 b).

3. A pneumatic grease pump according to claim 2, wherein: the barrel cover (5 b) comprises a cover portion (5 b 1) arranged at the opening of the barrel body (5 a) and a connecting portion (5 b 2) sleeved outside the barrel body (5 a), the communication channel (13) comprises a first channel (13 a) arranged at the cover portion (5 b 1) and a second channel (13 b) arranged at the connecting portion (5 b 2), one end of the first channel (13 a) is communicated with the air cavity (9) and the other end of the first channel is communicated with the second channel (13 b), and the outer end of the second channel (13 b) is communicated with the outside of the oil storage barrel (5).

4. A pneumatic grease pump according to claim 3, wherein: the first channel (13 a) is formed by inwards concave inner end surfaces of the cover parts (5 b 1), and the second channel (13 b) is formed by inwards concave inner side walls of the connecting parts (5 b 2).

5. A pneumatic grease pump according to claim 2, wherein: the barrel body (5 a) is close to one end opening of the pump body (1), and the oil cavity (10) is composed of the barrel body (5 a) and the pump body (1).

6. A pneumatic grease pump according to claim 1, wherein: the pump body (1) is provided with an exhaust channel (14) communicated with the oil outlet channel (4) and the outside of the pump body (1), and the outer end of the exhaust channel (14) is detachably connected with a plug (15).

7. A pneumatic grease pump according to claim 6, wherein: the oil outlet channel (4) comprises an inner small hole section (4 a) and an outer large hole section (4 b), the check valve II (12) comprises a ball (12 a) and a valve seat (12 b) which are arranged on the large hole section (4 b), a spring for moving the ball (12 a) to one side of the small hole section (4 a) by elastic force is arranged between the ball (12 a) and the valve seat (12 b), the ball (12 a) opens and seals the small hole section (4 a), and the exhaust channel (14) is connected to the large hole section (4 b) and is arranged between the ball (12 a) and the valve seat (12 b).

8. A pneumatic grease pump according to claim 1, wherein: the novel oil pump is characterized in that an oil injection channel (16) is arranged on the pump body (1), one end of the oil injection channel (16) is communicated with the oil cavity (10), the other end of the oil injection channel is communicated with the outside of the pump body (1), one end of the oil injection channel (16) connected with the outside of the pump body (1) is provided with an oil injection nozzle (17), and a filter screen is arranged on the oil injection channel (16) on the inner side of the oil injection nozzle (17).

9. A pneumatic grease pump according to claim 1, wherein: the oil inlet channel (3) and the oil outlet channel (4) are coaxially arranged and are respectively positioned at two sides of the pump cavity (2), and the oil inlet channel (3) and the oil outlet channel (4) are arranged at one side, far away from the cylinder (6), of the pump cavity (2).