CN217652904U

CN217652904U - Low-temperature liquid pump

Info

Publication number: CN217652904U
Application number: CN202221875519.0U
Authority: CN
Inventors: 易华东; 刘科华; 谢期山
Original assignee: Dongguan Longchang Industrial Gas Co ltd
Current assignee: Dongguan Longchang Industrial Gas Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-10-25
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses a cryogenic liquid pump, which relates to the technical field of liquid pumps and solves the problems that the existing cryogenic liquid pumps are large in size, a plurality of groups of bolts are used for fixing a motor, a pump body and a bottom plate, the disassembly is complicated during transportation and daily maintenance, and the disassembly cannot be rapidly carried out; the equal threaded connection in inside of mounting panel has the threaded rod, the one end of threaded rod is rotated and is connected with the lifter plate, the inside sliding connection of lifter plate has the slide bar, the both ends of slide bar all with mounting panel fixed connection. The utility model discloses when needs are dismantled the cryogenic liquids pump, staff's accessible rotates threaded rod control inserted bar and removes, the inserted bar can with slot alternate segregation when removing to make mounting panel and bottom plate alternate segregation, make things convenient for the staff to pull down the motor and the pump body from the bottom plate.

Description

Low-temperature liquid pump

Technical Field

The utility model belongs to the technical field of the liquid pump and specifically relates to relate to cryogenic liquids pump.

Background

Cryogenic liquid pumps (cryopumps for short) are special pumps used in petroleum, air separation and chemical plants to transport cryogenic liquids (such as liquid oxygen, liquid nitrogen, liquid argon, liquid hydrocarbons, liquefied natural gas, etc.) from low pressure locations to high pressure locations. With the development of air separation technology, cryogenic liquid is widely applied and developed.

In realizing the utility model discloses the in-process, the inventor finds to have following problem in this technique at least, and some cryogenic liquids pump are bulky now, use the multiunit bolt to fix mutually between the motor and the pump body and the bottom plate, and it is comparatively loaded down with trivial details to dismantle when transporting and daily maintenance, can't dismantle fast, consequently, provides cryogenic liquids pump now.

SUMMERY OF THE UTILITY MODEL

In order to improve that some current cryogenic liquids pump are bulky, it is fixed mutually to use the multiunit bolt between the motor and the pump body and the bottom plate, and it is comparatively loaded down with trivial details to dismantle when transporting and daily maintenance, can't carry out the problem of dismantling fast, the utility model provides a cryogenic liquids pump.

The utility model provides a cryogenic liquids pump adopts following technical scheme:

the low-temperature liquid pump comprises a bottom plate, and a motor and a pump body which are arranged on the bottom plate, wherein the bottoms of the motor and the pump body are fixedly connected with mounting plates;

the equal threaded connection in inside of mounting panel has the threaded rod, the one end of threaded rod is rotated and is connected with the lifter plate, the inside sliding connection of lifter plate has the slide bar, the both ends of slide bar all with mounting panel fixed connection, the bottom of lifter plate articulates there is the connecting rod, the one end that the lifter plate was kept away from to the connecting rod articulates there is the inserted bar, the bottom of inserted bar is provided with slide mechanism, the inside of bottom plate seted up with the slot of inserted bar looks adaptation.

Through adopting above-mentioned technical scheme, when needs are dismantled the cryogenic liquids pump, staff's accessible rotates the threaded rod control inserted bar and removes, and the inserted bar can with slot alternate segregation when removing to make mounting panel and bottom plate alternate segregation, make things convenient for the staff to pull down the motor and the pump body from the bottom plate.

Optionally, a through groove is formed in the top of the mounting plate, and one end, away from the lifting plate, of the threaded rod is arranged inside the through groove and fixedly connected with a hand wheel.

Through adopting above-mentioned technical scheme, the hand wheel can make things convenient for the staff to rotate the threaded rod.

Optionally, the inner wall that the mounting panel is inside to be located logical groove is provided with the top cap, the hand-pulled groove has been seted up at the top of top cap, the inner wall fixed mounting that the top cap is inside to be located the hand-pulled groove has the hand lever.

Through adopting above-mentioned technical scheme, the reducible in use of top cap appears the condition of artificial rotation hand wheel of non-.

Optionally, the sliding mechanism includes a sliding block, one side of the sliding block is fixedly connected with the insertion rod, and a sliding groove matched with the sliding block is formed in the mounting plate.

Through adopting above-mentioned technical scheme, slider and spout can restrict the displacement range of inserted bar, can make the more steady of inserted bar removal simultaneously.

Optionally, the inside fixed mounting of top cap has the spring, the one end fixed mounting of spring has the stopper, the inside inner wall that is located logical groove of mounting panel seted up with the spacing groove of stopper looks adaptation.

Through adopting above-mentioned technical scheme, when needs open the top cap, the staff can promote the stopper and remove, but stopper extrusion spring and with spacing groove alternate segregation to make the staff can open the top cap fast.

Optionally, a sealing gasket is fixedly mounted on one side of the top cover, which is far away from the hand lever.

Through adopting above-mentioned technical scheme, the sealing performance of sealed multiplicable top cap of filling up reduces external environment to leading to groove inner structure's influence.

Optionally, a push plate is fixedly mounted on one side of the limiting block, a sliding groove is formed in the top cover, and the push plate penetrates through the outer portion of the sliding groove.

Through adopting above-mentioned technical scheme, the push pedal can make things convenient for the staff to promote the stopper and remove.

Optionally, the inner wall of the mounting plate, which is located in the through groove, is fixedly provided with an elastic rope, and one end of the elastic rope is fixedly connected with the sealing gasket.

Through adopting above-mentioned technical scheme, the elasticity rope still restricts the top cap after opening the top cap, reduces the condition that the top cap appears losing.

To sum up, the utility model discloses following beneficial effect has:

1. when the cryogenic liquid pump needs to be disassembled, a worker can control the insertion rod to move through the rotary threaded rod, and the insertion rod can be separated from the slot when moving, so that the mounting plate and the bottom plate are separated from each other, the motor and the pump body can be conveniently disassembled from the bottom plate by the worker;

2. the utility model discloses when the top cap is opened to needs, the staff can promote the stopper and remove, but the stopper extrusion spring and with spacing groove alternate segregation to make the staff can open the top cap fast.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

Fig. 3 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.

Description of reference numerals:

1. a base plate; 2. an electric motor; 3. a pump body; 4. mounting a plate; 5. a threaded rod; 6. a lifting plate; 7. a slide bar; 8. a connecting rod; 9. inserting a rod; 10. a sliding mechanism; 101. a slider; 102. a chute; 11. a hand wheel; 12. a top cover; 13. a hand lever; 14. a spring; 15. a limiting block; 16. a gasket; 17. pushing the plate; 18. an elastic cord.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1 and 2, the cryogenic liquid pump comprises a bottom plate 1, a motor 2 and a pump body 3 which are arranged on the bottom plate 1, wherein the bottom of the motor 2 and the bottom of the pump body 3 are fixedly connected with a mounting plate 4, the inside of the mounting plate 4 is connected with a threaded rod 5 in a threaded manner, a through groove is formed in the top of the mounting plate 4, one end, far away from a lifting plate 6, of the threaded rod 5 is arranged in the through groove and is fixedly connected with a hand wheel 11, and the hand wheel 11 can facilitate a worker to rotate the threaded rod 5.

Referring to fig. 1 and 3, one end of the threaded rod 5 is rotatably connected with a lifting plate 6, the inside of the lifting plate 6 is slidably connected with a sliding rod 7, two ends of the sliding rod 7 are fixedly connected with a mounting plate 4, the bottom of the lifting plate 6 is hinged with a connecting rod 8, one end, away from the lifting plate 6, of the connecting rod 8 is hinged with an insertion rod 9, a slot matched with the insertion rod 9 is formed in the bottom plate 1, a sliding mechanism 10 is arranged at the bottom of the insertion rod 9, the sliding mechanism 10 comprises a sliding block 101, one side of the sliding block 101 is fixedly connected with the insertion rod 9, a sliding groove 102 matched with the sliding block 101 is formed in the mounting plate 4, the sliding block 101 and the sliding groove 102 can limit the moving range of the insertion rod 9, and meanwhile, the insertion rod 9 can be moved more stably.

Referring to fig. 1 and 2, a top cover 12 is disposed on an inner wall of the through groove in the mounting plate 4, the top cover 12 can reduce the occurrence of non-manual rotation of the hand wheel 11 during use, a hand-pulling groove is formed in the top of the top cover 12, and a hand-pulling rod 13 is fixedly mounted on the inner wall of the top cover 12 in the hand-pulling groove. One side that top cap 12 kept away from hand lever 13 is fixed with sealed 16, and sealed 16 packing can increase top cap 12's sealing performance, reduces external environment to leading to groove inner structure's influence. The inner wall fixed mounting that the mounting panel 4 is inside to be located logical groove has elasticity rope 18, and the one end and the sealed 16 fixed connection that fills up of elasticity rope 18 still tie top cap 12 after opening top cap 12, reduce the condition that top cap 12 appears losing.

Referring to fig. 1 and 2, a spring 14 is fixedly mounted inside the top cover 12, a limiting block 15 is fixedly mounted at one end of the spring 14, and a limiting groove matched with the limiting block 15 is formed in the inner wall of the through groove inside the mounting plate 4. One side fixed mounting of stopper 15 has push pedal 17, and the sliding tray has been seted up to the inside of top cap 12, and push pedal 17 runs through to the outside of sliding tray, and push pedal 17 can make things convenient for the staff to promote stopper 15 and remove.

The utility model discloses an implement the principle and do: when the low-temperature liquid pump needs to be disassembled, a worker can firstly push the push plate 17 to move, and the push plate 17 can drive the limiting block 15 to extrude the spring 14 and separate the limiting block 15 from the limiting groove, so that the worker can quickly open the top cover 12; afterwards, the staff can rotate the hand wheel 11, the hand wheel 11 can drive the threaded rod 5 to rotate, the threaded rod 5 can drive the lifting plate 6 to move under the cooperation of the sliding rod 7, the lifting plate 6 can pass through the connecting rod 8 and drive the inserting rod 9 and the inserting groove to be separated from each other under the cooperation of the sliding block 101 and the sliding groove 102, so that the mounting plate 4 and the bottom plate 1 are separated from each other, and the staff can detach the motor 2 and the pump body 3 from the bottom plate 1 conveniently.

Above is the preferred embodiment of the utility model, not limit according to this the utility model discloses a protection scope, the event: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. Cryogenic liquid pump, including bottom plate (1) and motor (2) and the pump body (3) of setting on bottom plate (1), its characterized in that: the bottoms of the motor (2) and the pump body (3) are fixedly connected with mounting plates (4);

the equal threaded connection in inside of mounting panel (4) has threaded rod (5), the one end of threaded rod (5) is rotated and is connected with lifter plate (6), the inside sliding connection of lifter plate (6) has slide bar (7), the both ends of slide bar (7) all with mounting panel (4) fixed connection, the bottom of lifter plate (6) articulates there is connecting rod (8), the one end that lifter plate (6) were kept away from in connecting rod (8) articulates there is inserted bar (9), the bottom of inserted bar (9) is provided with slide mechanism (10), the inside of bottom plate (1) seted up with the slot of inserted bar (9) looks adaptation.

2. A cryogenic liquid pump according to claim 1, wherein: logical groove has been seted up at the top of mounting panel (4), the one end that lifter plate (6) were kept away from in threaded rod (5) sets up in logical inslot portion and fixedly connected with hand wheel (11).

3. A cryogenic liquid pump according to claim 2, wherein: the inner wall that mounting panel (4) inside was located logical groove is provided with top cap (12), the hand-pulled groove has been seted up at the top of top cap (12), the inner wall fixed mounting that top cap (12) inside was located the hand-pulled groove has hand lever (13).

4. A cryogenic liquid pump according to claim 1, wherein: the sliding mechanism (10) comprises a sliding block (101), one side of the sliding block (101) is fixedly connected with the inserted bar (9), and a sliding groove (102) matched with the sliding block (101) is formed in the mounting plate (4).

5. A cryogenic liquid pump according to claim 3, wherein: the inside fixed mounting of top cap (12) has spring (14), the one end fixed mounting of spring (14) has stopper (15), mounting panel (4) inside be located logical inner wall seted up with the spacing groove of stopper (15) looks adaptation.

6. A cryogenic liquid pump according to claim 3, wherein: one side of the top cover (12) far away from the hand lever (13) is fixedly provided with a sealing gasket (16).

7. Cryogenic liquid pump according to claim 5, characterized in that: one side fixed mounting of stopper (15) has push pedal (17), the sliding tray has been seted up to the inside of top cap (12), push pedal (17) run through to the outside of sliding tray.

8. The cryogenic liquid pump of claim 6 wherein: the inner wall fixed mounting that mounting panel (4) inside was located logical groove has elasticity rope (18), the one end and the sealed pad (16) fixed connection of elasticity rope (18).