CN213419345U

CN213419345U - Hydraulic sealed double-screw LPG suction pump

Info

Publication number: CN213419345U
Application number: CN202021385332.3U
Authority: CN
Inventors: 张颖
Original assignee: Tianjin Duoer Machinery Technology Co Ltd
Current assignee: Tianjin Duoer Machinery Technology Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-06-11
Anticipated expiration: 2030-07-15

Abstract

The utility model belongs to the technical field of twin-screw LPG suction pump equipment, especially, sealed twin-screw LPG suction pump of fluid pressure type, including the pump body, the inside wall fixedly connected with bearing of the pump body, the equal fixedly connected with screw rod of inner circle of a plurality of bearings, the surface of two screw rods all is provided with the spiral, and the one end of a screw rod runs through and extends to the surface of the pump body, and passes through shaft coupling fixed connection with power unit's output shaft. This sealed twin-screw LPG suction pump of fluid pressure type, inside through setting up two business turn over pipes all is provided with adjusting device, adjusting device is including the governing pipe, the regulation chamber has all been seted up to the inner wall of two business turn over pipes, thereby the mouth of pipe at pump body both ends has been reached, adjustable effect, convenient to use, practice thrift use cost, when needing to correspond the connecting pipe, only need to change the connecting pipe that corresponds, connect sealed the use through adjusting device, the availability factor has been strengthened, avoid carrying more pumps and correspond the use, the effect of cost of carrying is reduced.

Description

Hydraulic sealed double-screw LPG suction pump

Technical Field

The utility model relates to a double-screw LPG suction pump technical field especially relates to a sealed double-screw LPG suction pump of fluid pressure type.

Background

The double-screw pump is characterized in that a sealed cavity with constant volume is formed between a screw sleeve and a pump body or a lining which are meshed with each other on a driving shaft and a driven shaft, media are respectively conveyed to the middle of the pump body along with the rotation of the screw shaft, the screw sleeve and the pump body are combined together, and finally the media are conveyed to an outlet of the pump, so that the conveying purpose of the pump is realized.

The sizes of the pipe orifices at the two ends of the conventional double-screw pump are fixed, the corresponding connecting pipes cannot be replaced according to requirements in use, the pump corresponding to the requirement is used, the universal effect is poor, the use cost is high, the double-screw pump is inconvenient to use, and therefore a hydraulic sealing double-screw LPG suction pump is needed.

SUMMERY OF THE UTILITY MODEL

The both ends mouth of pipe size based on current twin-screw pump is all fixed, and in use can not change the connecting pipe that corresponds according to the demand, leads to the pump that needs to correspond to use, causes the general effect poor, and use cost is high, the technical problem who is not convenient for use, the utility model provides a sealed twin-screw LPG suction pump of fluid pressure type.

The utility model provides a pair of sealed twin-screw LPG suction pump of fluid pressure type, which comprises a pump body, the inside wall fixedly connected with bearing of the pump body, it is a plurality of the equal fixedly connected with screw rod of inner circle of bearing, two the surface of screw rod all is provided with the spiral, one the surface of the pump body is run through and is extended to the one end of screw rod, and passes through shaft coupling fixed connection with power unit's output shaft, the fixed intercommunication of both sides inner wall of the pump body has the business turn over pipe, two the inside of business turn over pipe all is provided with adjusting device, adjusting device is including the regulating tube, two the regulation chamber has all been seted up to the inner wall of business turn over pipe, the inner wall in regulation chamber and the fixed intercommunication of inner wall of regulating tube.

Preferably, the inner wall of one side of the adjusting pipe is in threaded connection with an adjusting rod, and one end of the adjusting rod is fixedly connected with an adjusting wheel.

Preferably, the other end of the adjusting rod is fixedly connected with a piston, the surface of the piston is fixedly connected with a first sealing ring, and the surface of the first sealing ring is in sliding insertion connection with the inner wall of the adjusting pipe.

Preferably, seal groove and constant head tank have been seted up respectively to the inside wall in regulation chamber, the inner wall fixedly connected with air bag of seal groove, air bag's surface is the annular shape, air bag's surface and the surface sliding grafting of connecting pipe.

Preferably, the inner wall of constant head tank slides and pegs graft there is the locating lever, the locating hole has been seted up on the surface of connecting pipe, the inner wall of locating hole slides with the one end of locating lever and pegs graft.

Preferably, the surface of locating lever is fixedly connected with spring and second sealing washer respectively, the surface of second sealing washer is pegged graft with the inner wall of constant head tank slip, the one end of spring is pegged graft with the inner wall of constant head tank slip.

Preferably, the fixed surface of the adjusting pipe is communicated with a water feeding pipe, the fixed surface of the water feeding pipe is connected with a valve, and tap water is arranged on the inner wall of the adjusting pipe.

The utility model provides a beneficial effect does:

all be provided with adjusting device through the inside that sets up two business turn over pipes, adjusting device is including the control tube, and the regulation chamber has all been seted up to the inner wall of two business turn over pipes to reached the mouth of pipe at the pump body both ends, effect with adjustable, convenient to use practices thrift use cost, when needing to correspond the connecting pipe, only needs to change the connecting pipe that corresponds, connects sealed the use through adjusting device, has strengthened the availability factor, avoids carrying more pumps and corresponds the use, has reduced the effect of cost of carrying.

Drawings

FIG. 1 is a perspective view of a hydraulic sealed twin-screw LPG suction pump;

FIG. 2 is a front view of a pump body structure of a hydraulic sealed twin-screw LPG suction pump;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 of a hydraulic sealed twin-screw LPG suction pump;

FIG. 4 is an enlarged view of the structure at B in FIG. 2 of a hydraulic sealed twin-screw LPG suction pump

FIG. 5 is a top view of the inlet and outlet tube structure of a hydraulic sealed twin-screw LPG suction pump.

In the figure: 1. a pump body; 2. a bearing; 3. a screw; 4. spiraling; 5. an inlet pipe and an outlet pipe; 6. an adjusting tube; 7. an adjustment chamber; 8. a connecting pipe; 9. adjusting a rod; 10. an adjustment wheel; 11. a piston; 12. a first seal ring; 13. a sealing groove; 14. positioning a groove; 15. sealing the air bag; 16. positioning a rod; 17. positioning holes; 18. a spring; 19. a second seal ring; 20. a water feeding pipe; 21. and (4) a valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-5, a hydraulic sealed double-screw LPG suction pump, as shown in fig. 1-2, includes a pump body 1, a bearing 2 is fixedly connected to the inner side wall of the pump body 1, a plurality of screws 3 are fixedly connected to the inner rings of the bearing 2, a screw 4 is disposed on the surface of each of the two screws 3, one end of one screw 3 penetrates and extends to the outer surface of the pump body 1, and is fixedly connected to the output shaft of a power mechanism through a coupler, inlet and outlet pipes 5 are fixedly communicated with the inner walls of the two sides of the pump body 1, adjusting devices are disposed inside the two inlet and outlet pipes 5, each adjusting device includes an adjusting pipe 6, adjusting cavities 7 are disposed on the inner walls of the two inlet and outlet pipes 5, the inner walls of the adjusting cavities 7 are fixedly communicated with the inner walls of the adjusting pipes;

as shown in fig. 4-5, an adjusting rod 9 is connected to the inner wall of one side of the adjusting tube 6 through a screw thread, and an adjusting wheel 10 is fixedly connected to one end of the adjusting rod 9; the other end of the adjusting rod 9 is fixedly connected with a piston 11, the surface of the piston 11 is fixedly connected with a first sealing ring 12, and the surface of the first sealing ring 12 is in sliding insertion connection with the inner wall of the adjusting pipe 6;

as shown in fig. 3, a sealing groove 13 and a positioning groove 14 are respectively formed in the inner side wall of the adjusting cavity 7, a sealing airbag 15 is fixedly connected to the inner wall of the sealing groove 13, the surface of the sealing airbag 15 is annular, and the surface of the sealing airbag 15 is in sliding insertion connection with the surface of the connecting pipe 8;

a positioning rod 16 is inserted into the inner wall of the positioning groove 14 in a sliding manner, a positioning hole 17 is formed in the surface of the connecting pipe 8, and the inner wall of the positioning hole 17 is inserted into one end of the positioning rod 16 in a sliding manner;

the surface of the positioning rod 16 is fixedly connected with a spring 18 and a second sealing ring 19 respectively, the surface of the second sealing ring 19 is in sliding insertion connection with the inner wall of the positioning groove 14, and one end of the spring 18 is in sliding insertion connection with the inner wall of the positioning groove 14;

the surface of the adjusting pipe 6 is fixedly communicated with a water feeding pipe 20, the surface of the water feeding pipe 20 is fixedly connected with a valve 21, and tap water is arranged on the inner wall of the adjusting pipe 6; all be provided with adjusting device through the inside that sets up two business turn over pipes 5, adjusting device is including adjusting tube 6, the regulation chamber 7 has all been seted up to the inner wall of two business turn over pipes 5 to the mouth of pipe at the pump body both ends has been reached, effect with adjustable, convenient to use, practice thrift use cost, when needing to correspond the connecting pipe, only need change the connecting pipe that corresponds, connect sealed the use through adjusting device, the availability factor has been strengthened, avoid carrying more pumps and correspond the use, the effect of cost of carrying is reduced.

The working principle is as follows: when the water-pressure-type water-saving device is used, the inner wall of the inlet pipe 5, which is inserted into the corresponding connecting pipe 8, is taken out, the adjusting wheel 10 is rotated to drive the adjusting rod 9 to rotate, so that the piston 11 is driven to extrude the inside tap water to generate water pressure, the water pressure extrudes the sealing air bag 15 and the positioning rod 16 to control the surface of the positioning rod 16 to extrude the positioning hole 17 for fixing and positioning, and meanwhile, the sealing air bag 15 expands outwards to extrude the peripheral surface of the connecting pipe 8 to seal.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a sealed twin-screw LPG suction pump of fluid pressure type, includes the pump body (1), its characterized in that: the utility model discloses a pump body, including pump body (1), the inside wall fixedly connected with bearing (2), it is a plurality of the equal fixedly connected with screw rod (3) of inner circle of bearing (2), two the surface of screw rod (3) all is provided with spiral (4), one the one end of screw rod (3) is run through and is extended to the surface of the pump body (1), and passes through shaft coupling fixed connection with power unit's output shaft, the both sides inner wall fixed intercommunication of the pump body (1) has business turn over pipe (5), two the inside of business turn over pipe (5) all is provided with adjusting device, adjusting device is including regulating tube (6), two regulation chamber (7) have all been seted up to the inner wall of business turn over pipe (5), the inner wall of regulation chamber (7) and the inner wall fixed intercommunication of regulating tube (6), the inner wall slip grafting of business turn over pipe (5) has connecting.

2. A hydraulically sealed twin-screw LPG suction pump according to claim 1, characterized in that: the inner wall of one side of the adjusting pipe (6) is in threaded connection with an adjusting rod (9), and one end of the adjusting rod (9) is fixedly connected with an adjusting wheel (10).

3. A hydraulically sealed twin-screw LPG suction pump according to claim 2, characterized in that: the other end fixedly connected with piston (11) of adjusting pole (9), the fixed surface of piston (11) is connected with first sealing washer (12), the surface of first sealing washer (12) and the inner wall slip grafting of adjusting pipe (6).

4. A hydraulically sealed twin-screw LPG suction pump according to claim 1, characterized in that: seal groove (13) and constant head tank (14) have been seted up respectively to the inside wall in regulation chamber (7), the inner wall fixedly connected with air bag (15) of seal groove (13), the surface of air bag (15) is the annular shape, the surface of air bag (15) is pegged graft with the surface slip of connecting pipe (8).

5. A hydraulically sealed twin-screw LPG suction pump according to claim 4, characterised in that: the inner wall of constant head tank (14) slides and pegs graft and has locating lever (16), locating hole (17) have been seted up on the surface of connecting pipe (8), the inner wall of locating hole (17) slides with the one end of locating lever (16) and pegs graft.

6. A hydraulically sealed twin-screw LPG suction pump according to claim 5, characterised in that: the surface of locating lever (16) is fixedly connected with spring (18) and second sealing washer (19) respectively, the surface of second sealing washer (19) is pegged graft with the inner wall slip of constant head tank (14), the one end of spring (18) is pegged graft with the inner wall slip of constant head tank (14).

7. A hydraulically sealed twin-screw LPG suction pump according to claim 1, characterized in that: the surface fixing intercommunication of regulating tube (6) has filler pipe (20), the fixed surface of filler pipe (20) is connected with valve (21), the inner wall of regulating tube (6) is provided with the running water.