CN211260308U - Oil supply reciprocating lift pump body device - Google Patents

Abstract

The utility model belongs to the field of electromechanical equipment, and relates to an oil supply reciprocating lifting pump body device, which is provided with an oil feeding area, a pressure area and an oil injection area from top to bottom, wherein a plunger rod-ball valve assembly-oil injection rod triplet capable of moving up and down is arranged; the oil injection area comprises an oil suction pump pipe, a lower half part of the pressure cavity and a first piston structure formed by oil injection shovels which are movable at the two parts; the pressure area comprises the upper half part of the pressure cavity and a one-way cut-off valve group in the pressure cavity, the oil injection rod passes through the center in the one-way cut-off valve group to form a second piston structure, the oil delivery area comprises an oil cup plug, an oil delivery pump body and an oil pipe, the oil delivery area passes through the inside of the oil cup plug, the oil delivery pump body and the oil pipe, the tail end of the oil delivery area is connected with a ball valve assembly through a plunger rod, and the oil delivery pump body is connected with the pressure cavity in a compression mode through a long-. The utility model adopts a multi-layer sealing structure to improve the durability and the sealing performance; its is rational in infrastructure, and easily assembly helps the oil mass to promote.

Description

Oil supply reciprocating lift pump body device

Technical Field

The utility model belongs to the electromechanical device field relates to a reciprocal pump body device that promotes of oil supply.

Background

Mechanical lubrication is an indispensable essential link in the operation of mechanical equipment. The lubricating pump rod at the present stage adopts a structure of oil extraction, a pressure oil tank and a single-way valve to perform the oil pumping function of lubricating oil; the sealing material has high comprehensive performance requirement and is easy to wear, main parts of parts are easy to damage, and along with the increase of service time, the oil quantity and the pressure are less and less, so that the maintenance and the replacement of the main parts are needed, and the efficiency of the whole equipment is influenced.

SUMMERY OF THE UTILITY MODEL

Based on above technical problem, the utility model relates to an adopt multi-level sealed seal structure to improve durability and leakproofness, provide a reciprocal promotion pump body device is supplied with to oil.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

a device for supplying oil to a reciprocating lifting pump body comprises an oil injection area, a pressure area and an oil delivery area which are arranged from bottom to top, wherein the oil injection area comprises an oil suction pump pipe, a lower half part of a pressure cavity and an oil injection shovel which is movable at the two parts, the oil injection shovel is connected at the tail end of an oil injection rod which can move up and down to form a first piston structure, the pressure area comprises the upper half part of the pressure cavity and a one-way cut-off valve group inside the pressure cavity, the oil injection rod passes through the inner center of the one-way cut-off valve group to form a second piston structure, the oil delivery area comprises an oil cup plug, an oil delivery pump body, an oil pipe and a plunger rod which can move up and down and passes through the oil delivery area, a ball valve component is connected at the tail end of the plunger rod inside the oil pipe, the tail end of the ball valve component is connected with the oil injection rod, and one side of the middle part of the oil feeding pump body is outwards formed with an oil outlet provided with a check valve, and the other side of the middle part of the oil feeding pump body is outwards connected with a release valve.

Furthermore, the oil cup plug comprises an oil cup and a pressing piece, and a plunger rod penetrates through the oil feeding pump body downwards from the center of the oil cup plug to the inside of the oil pipe.

Preferably, the oil cup is a bell mouth, the lower end of the oil cup is provided with threads, and the oil cup is connected with the pressing piece through the threads.

Further, a first sealing valve group is arranged inside the oil feeding pump body below the pressing piece.

Furthermore, the ball valve component is of a cylindrical structure with two shrunk ends, a second sealing component is arranged around the outer side of the middle of the ball valve component, a plurality of oil inlets are formed in the lower portion of the ball valve component, the oil inlets are converged and communicated into the inner cavity of the valve body, a spherical valve core is arranged above the inner cavity of the valve body, an overflow outlet is formed above the spherical valve core, and the overflow outlet is located at the upper portion of the ball valve component.

Furthermore, the one-way cut-off valve group comprises a one-way cut-off valve body, a valve seat and a cylindrical valve core, wherein a valve body cavity is arranged between the one-way cut-off valve body and the cylindrical valve core, and the cylindrical valve core surrounds the oil filling rod to form the second piston type structure.

Particularly, the outer ring of the lower end of the cylindrical valve core is arranged into a conical surface structure, and the conical surface structure is matched with the conical surface of the valve seat to form a valve group structure with two conical surfaces matched with each other for cutting off flow.

Specifically, the upper end of the oil feeding pump body is extended to form an upper connecting platform, the upper portion of the pressure cavity is extended to form a lower connecting platform, the upper end of the connecting bolt is fixedly connected with the upper connecting platform through threads, and the lower end of the connecting bolt is fixedly connected with the lower connecting platform through threads.

Preferably, three connecting bolts are arranged at regular intervals.

The utility model has the advantages as follows:

(1) the oil suction pump pipe of the utility model is used as an oil inlet, and the hollow-out fence filter screen structure is adopted to prevent the influence or damage of the equipment caused by more oily sundries due to the external environment;

(2) the oil pump can continuously lift and pump out oil through the second piston structure of the oil injection area and the first piston structure of the pressure area, wherein the second piston structure adopts a two-cone matched cut-off mode to realize cut-off, thereby greatly reducing the flow loss generated when the low pressure is increased to the high pressure to change;

(3) the utility model realizes the pushing of the oil through the ball valve assembly, and prevents the oil from returning to the equipment through the check valve, so that the oil is efficiently supplied in the lifting process;

(4) the key part oil injection rod which plays the role of the piston rod in the utility model can not be accidentally damaged in the equipment all the time, and can not hurt people by accidental clamping, thereby ensuring the safe use of the equipment;

(5) the utility model adopts a multi-layer sealing structure to improve the durability and sealing protection; the oil pump is reasonable in structure, easy to assemble, simple and durable, and beneficial to oil quantity lifting.

Drawings

Fig. 1 is a schematic perspective view of the overall structure of the present invention;

FIG. 2 is a schematic plan view of the overall structure of the present invention;

FIG. 3 is a schematic sectional view of the overall structure of the present invention;

fig. 4 is an enlarged schematic view of the cross-sectional structure of the one-way shut-off valve set of the present invention;

in the figure, 1-a plunger rod, 2-an oil cup plug, 3-an oil feeding pump body, 4-an oil pipe, 5-a connecting bolt, 6-a pressure cavity, 7-an oil suction pump pipe, 8-a ball valve component, 9-a one-way cut-off valve group, 10-an oil filling shovel, 21-an oil cup, 22-a pressing component, 31-an oil outlet, 311-a check valve, 32-a vent valve, 33-an upper connecting platform, 34-a first sealing valve component, 61-a lower connecting platform, 62-a cylindrical pipe body, 63-a flange, 81-an overflow outlet, 82-a spherical valve core, 83-a valve body inner cavity, 84-an oil inlet, 85-a second sealing component, 91-a one-way cut-off valve body, 92-a valve body cavity, 93-a cylindrical valve core and 94-an oil, 911-valve seat, 912-cone.

Detailed Description

For a better understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and the following embodiments.

As shown in fig. 1-2, an oil supply reciprocating lifting pump body device can be divided into an oil injection area, a pressure area and an oil delivery area from bottom to top in appearance, wherein the oil injection area includes an oil suction pump pipe 7, a lower half part of a pressure cavity 6 and an oil injection shovel 10 movable between the two parts, the pressure area includes an upper half part of the pressure cavity 6 and a one-way cut-off valve group 9 inside the pressure area, the oil delivery area includes an oil cup plug 2, an oil delivery pump body 3 and an oil pipe 4, and a plunger rod 1 capable of moving up and down is arranged inside the oil delivery area, the oil delivery pump body 3 is connected with the pressure cavity 6 through a long-rod type connecting bolt 5 for compressing the oil pipe 4 therein, and preferably, three connecting bolts 5 are uniformly arranged at intervals.

Specifically, as shown in fig. 3, the oil cup plug 2 includes an oil cup 21 and a pressing member 22, and the plunger rod 1 passes through the oil feed pump body from the center of the oil cup plug 2 downward to the inside of the oil pipe 4, specifically, the oil cup 21 is a bell mouth and has threads at the lower end, and is connected with the pressing member 22 through the threads, while the pressing member 22 presses the center of the upper end of the oil feed pump body 3, and a first sealing assembly 34 is disposed downward inside the oil feed pump body 3 for sealing the plunger rod 1 in a moving state.

Specifically, as shown in fig. 3, the upper end of the oil feed pump body 3 is extended to form an upper connection platform 33, one side of the middle portion thereof is outwardly formed with an oil outlet 31, a check valve 311 is disposed in the oil outlet 31, as shown in fig. 1, and the other side of the middle portion thereof is outwardly connected with a release valve 32, as shown in fig. 2, and in addition, specifically, the first sealing assembly 34 is disposed above the oil outlet 31 and the release valve 32.

Further, as shown in fig. 3, an oil pipe 4 is arranged below the oil feed pump body 3, the oil pipe 4 is arranged between the one-way cut-off valve group 9 and the oil feed pump body 3, the connection part at the two ends adopts clearance fit and soft metal seal, and a sealing cavity is formed by compressing the connection bolt 5, wherein the upper end of the connection bolt 5 is in threaded connection with the upper connection platform 33; the ball valve assembly 8 is arranged inside the oil pipe 4, and the ball valve assembly 8 is fixedly connected with the plunger rod 1 upwards and the oil filling rod 94 downwards.

Specifically, as shown in fig. 3, the ball valve assembly 8 has a cylindrical structure with two shrunk ends, a second sealing assembly 85 is disposed around the outer side of the middle portion of the ball valve assembly 8, a plurality of oil inlets 84 are disposed on the lower portion of the second sealing assembly, and the second sealing assembly converges and enters the valve body inner cavity 83, a spherical valve core 82 is disposed above the valve body inner cavity 83, a spill port 81 is disposed above the spherical valve core 82, and the spill port 81 is located at the upper portion of the ball valve assembly 8 and is used for spilling oil into the oil pipe 4.

Further, as shown in fig. 3, a lower connecting platform 61 is formed on the upper portion of the pressure chamber 6 by epitaxy, a flange 63 is formed on the lower portion of the pressure chamber by epitaxy, a cylindrical pipe body 62 is formed in the middle of the pressure chamber, a one-way shut-off valve group 9 is arranged inside the upper end of the pressure chamber, the one-way shut-off valve group and the pressure chamber are assembled and sealed by adopting a 0-shaped ring and other structures, and the lower end of the pressure chamber 6 is connected with the oil suction pump pipe 7; further, a filler rod 94 passes through the cavity of the pressure chamber 6.

Specifically, as shown in fig. 4, the one-way flow-cut valve assembly 9 includes a one-way flow-cut valve body 91, a valve seat 911, and a cylindrical valve core 93, the oil filler rod 94 passes through the center of the valve body, the cylindrical valve core 93 surrounds the oil filler rod 94 to form a first piston structure, the outer ring of the lower end of the cylindrical valve core 93 is provided with a conical surface structure, and cooperates with the conical surface 912 of the valve seat 911 to form a valve assembly structure with two conical surfaces for mating flow-cut, a valve body chamber 92 is formed between the inside of the one-way flow-cut valve body 91 and the cylindrical valve core 93, and the valve body chamber 92 becomes an oil pressurization area in a state with two conical surfaces for mating flow-.

Specifically, as shown in fig. 2 and 3, the oil suction pump pipe 7 is screwed at the lower end of the pressure chamber, the sidewall of the oil suction pump pipe is surrounded to form a hollow fence structure with uniform intervals, and the oil injection shovel 10 at the center of the oil suction pump pipe is arranged at the tail end of the oil injection rod 94 to form a second piston structure.

When the utility model is used, the plunger rod 1 is pulled to move up and down through power equipment, so as to drive the ball valve assembly 8 at the lower part and the oil injection rod 94 at the lower end to move up and down in the same way, and the first sealing assembly 34 is arranged at the outer side of the plunger rod 1, the first sealing assembly 34 adopts the combined structure of guide wear resistance, compression ring, V packing, support ring, dustproof sealing and the like in the prior art, so as to prevent oil leakage in the moving process, even if a small amount of oil overflows from the upper end of the plunger rod 1 due to sealing aging, the oil can be accepted through the oil cup, and the sanitary problem caused by oil pollution on the outer wall; and a second sealing assembly 85 is arranged outside the ball valve assembly 8, and the second sealing assembly also adopts a combined structure in the prior art, so that when an oil pressurizing area formed inside the one-way cut-off valve group 9 pressurizes and overflows the ball valve assembly 8, the good sealing performance of the ball valve assembly 8 is maintained.

Specifically, when the utility model is used, the oil suction pump pipe 7 is immersed in oil, so that the oil enters the oil suction pump pipe 7 from the hollowed-out fence structure, the hollowed-out fence structure has the function of filtering impurities in the oil, under the action of the oil injection rod 94 driving the oil injection shovel 10 upwards, the oil is lifted into the pressure cavity 6, meanwhile, the first piston structure of the one-way cut-off valve group 9 is opened upwards along with the oil injection rod 94, so that the oil in the pressure cavity 6 enters the valve body cavity 92, and part of the oil also enters the lower part of the oil pipe 4, then, the plunger rod 1 drives the oil injection rod 94 to move downwards, so that two conical surfaces of the first piston structure of the one-way cut-off valve group 9 are matched to cut off, the valve body cavity 92 is sealed, meanwhile, the ball valve assembly 8 also moves downwards, so that the pressure of the valve body cavity 92 is increased in a sealed state, oil enters the inner cavity 83 of the valve body from the oil inlet 84, pushes the ball valve core 82 open and flows out from the overflow outlet 81, so that the oil enters the upper part of the oil pipe 4 and is pumped out from the oil outlet 31 of the oil feeding pump body 3; therefore, the plunger rod 1-ball valve assembly 8-oil injection rod 94 triplet moves up and down in a reciprocating mode, so that the second piston structure at the oil injection shovel 10 is continuously injected with oil, the oil is continuously pressurized and fed to the first piston structure of the cut-off valve group 9, and the oil is continuously pumped out.

The embodiment of the present invention is the above. The specific parameters in the above embodiments and examples are only for the purpose of clearly showing the verification process of the present invention, and are not used to limit the patent protection scope of the present invention, which is still subject to the claims, and all the equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A reciprocating lifting pump body device for oil supply is characterized in that an oil delivery area, a pressure area and an oil injection area are arranged from top to bottom, and a plunger rod (1) -ball valve assembly (8) -oil injection rod (94) triplet which can move up and down is arranged in the oil delivery area, the pressure area and the oil injection area; the oil injection area comprises an oil suction pump pipe (7), the lower half part of the pressure cavity (6) and an oil injection shovel (10) which is movable in the two parts, wherein the oil injection shovel (10) is connected to the tail end of an oil injection rod (94) to form a first piston structure; the pressure area comprises the upper half part of a pressure cavity (6) and a one-way cut-off valve group (9) in the pressure area, the oil filling rod (94) passes through the center in the one-way cut-off valve group (9) and forms a second piston structure, the oil delivery area comprises an oil cup plug (2), an oil delivery pump body (3), an oil pipe (4) and a plunger rod (1) which can move up and down and passes through the inside of the oil cup plug, the tail end of the plunger rod (1) is connected with a ball valve component (8), the oil delivery pump body (3) is in compression connection with the pressure cavity (6) through a connecting bolt (5), an oil outlet (31) provided with a check valve (311) is formed outwards on one side of the middle part of the oil delivery pump body (3), and the other side of the middle part of.

2. An oil supply reciprocating pump body device according to claim 1, characterized in that the oil cup stopper (2) comprises an oil cup (21) and a pressing member (22), and a plunger rod (1) passes through the oil feed pump body (3) from the center of the oil cup stopper (2) to the inside of the oil pipe (4).

3. An oil feed reciprocating pump body device according to claim 2, wherein the oil cup (21) is flared and threaded at its lower end and is threadedly connected to the hold down member (22).

4. An oil feed reciprocating pump body device according to claim 3, characterized in that a first sealing valve assembly (34) is arranged inside the oil feed pump body (3) below the pressing member (22).

5. The oil supply reciprocating lifting pump body device as claimed in claim 1, wherein the ball valve assembly (8) is of a cylindrical structure with two ends shrunk, a second sealing assembly (85) is arranged around the outer side of the middle of the ball valve assembly, a plurality of oil inlets (84) are formed in the lower portion of the ball valve assembly, the oil inlets converge and lead into an inner cavity (83) of the valve body, a spherical valve core (82) is arranged above the inner cavity (83) of the valve body, an overflow outlet (81) is formed above the spherical valve core (82), and the overflow outlet (81) is located at the upper portion of the ball valve assembly (8).

6. An oil feed reciprocating lift pump body arrangement according to claim 1, c h a r a c t e r i z e d in that the valve block (9) comprises a one-way shut off valve body (91), a valve seat (911) and a cylindrical spool (93), wherein between the one-way shut off valve body (91) and the cylindrical spool (93) is a valve body chamber (92), and the cylindrical spool (93) surrounds the oil filling rod (94) forming a second piston type structure.

7. An oil supply reciprocating lift pump body device according to claim 6, characterized in that the outer ring of the lower end of the cylindrical valve core (93) is arranged into a conical surface structure, and the conical surface (912) of the valve seat (911) is matched with each other to form a valve group structure with two matched conical surface for cutting off flow.

8. An oil feed reciprocating pump body device according to any one of claims 1 to 7, wherein the upper end of the oil feed pump body (3) is extended to form an upper connecting platform (33), the upper part of the pressure chamber (6) is extended to form a lower connecting platform (61), the upper end of the connecting bolt (5) is fixedly connected with the upper connecting platform (33) in a threaded manner, and the lower end of the connecting bolt is fixedly connected with the lower connecting platform (61) in a threaded manner.

9. An oil feed reciprocating pump body device according to claim 8, wherein three of said connecting bolts (5) are provided at regular intervals.

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