CN212839396U - Sealing device of liquid pump and liquid pump - Google Patents
Sealing device of liquid pump and liquid pump Download PDFInfo
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- CN212839396U CN212839396U CN202021714845.4U CN202021714845U CN212839396U CN 212839396 U CN212839396 U CN 212839396U CN 202021714845 U CN202021714845 U CN 202021714845U CN 212839396 U CN212839396 U CN 212839396U
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- end plate
- sealing ring
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Abstract
The utility model belongs to the technical field of the drawing liquid pump, refer in particular to a sealing device and drawing liquid pump of drawing liquid pump, including the casing, be provided with the hub connection round pin through at least one bearing in the casing, the one end of hub connection round pin is provided with the cross frame subassembly, and its other end is provided with the axostylus axostyle, be provided with the sealing washer subassembly between casing and the hub connection round pin, be provided with spacing portion on the axostylus axostyle, support between spacing portion and sealing washer subassembly to be; the elastic supporting piece comprises an upper end plate, a lower end plate and a spring arranged between the upper end plate and the lower end plate, and a sleeving hole is formed in the centers of the upper end plate and the lower end plate. The utility model discloses be provided with spacing portion on the axostylus axostyle, support between spacing portion and sealing washer subassembly and be equipped with elastic support piece, extrude sealing washer subassembly through elastic support piece, take place not hard up or when sealed effect is not good at the sealing washer subassembly, elastic support piece carries out pressure compensation, the sealed effect of reinforcing to the sealing washer subassembly.
Description
Technical Field
The utility model belongs to the technical field of the drawing liquid pump, refer in particular to a sealing device and drawing liquid pump of drawing liquid pump.
Background
At present, the sealing device of drawing liquid pump all adopts the sealing washer, and the sealing washer is used for a long time or is not hard up under big pressure effect after the installation for the sealing performance of sealing washer descends, thereby influences the use of drawing liquid pump, need unpack the drawing liquid pump apart and adjust or change the sealing washer, and such operation is more loaded down with trivial details, and the time of cost is longer, is unfavorable for improving work efficiency.
Disclosure of Invention
The utility model aims at providing a sealing device and drawing liquid pump of drawing liquid pump can carry out pressure compensation to the sealing washer, increases sealed effect.
The purpose of the utility model is realized like this: the sealing device of the liquid pump comprises a shell, wherein an axis connecting pin is arranged in the shell through at least one bearing, one end of the axis connecting pin is provided with a cross frame assembly, the other end of the axis connecting pin is provided with a shaft rod, a sealing ring assembly is arranged between the shell and the axis connecting pin, a limiting part is arranged on the shaft rod, and an elastic supporting piece is arranged between the limiting part and the sealing ring assembly in a supporting manner.
In the above sealing device for a liquid pump, the elastic support member includes an upper end plate, a lower end plate, and a spring disposed between the upper end plate and the lower end plate, and a sleeve hole is disposed in the center of the upper end plate and the center of the lower end plate.
In the above sealing device for a liquid pump, the sealing ring assembly includes a first sealing ring, a second sealing ring and a first waterproof sealing ring, the first sealing ring and the second sealing ring are both ring-shaped and provided with an annular groove with a downward opening, and the first waterproof sealing ring is ring-shaped and matched with the annular groove of the second sealing ring.
In the sealing device of the liquid pump, the upper end plate and the lower end plate are both in the shape of a round bottle cap, a convex ring is arranged at the bottom of the upper end plate, the upper end of the spring is fixed on the convex ring, and the lower part of the spring is arranged in a bottle cap groove of the lower end plate.
In the sealing device of the liquid pump, a second waterproof sealing ring is arranged in the bottle cap groove of the upper end plate, a groove is formed in the top of the second waterproof sealing ring, and a convex part matched with the groove is formed in the bottom of the first waterproof sealing ring.
In the sealing device of the liquid pump, the second waterproof sealing ring is annular and is matched with the annular groove of the second sealing ring.
In the above sealing device for a liquid pump, the casing is made of rubber, and at least one fluorine rubber ring is arranged outside the casing.
In the above sealing device of the liquid pump, the limiting part is a gasket clamped on the shaft rod.
In the above sealing device for an infusion pump, the cross assembly includes a cross fixing shell disposed on the shaft connecting pin, a cross disposed on the cross fixing shell, and a buckle for limiting the cross, and the cross fixing shell is provided with a cross slot engaged with the cross and an annular groove engaged with the buckle.
An infusion pump comprising a sealing arrangement for an infusion pump as claimed in any preceding claim.
Compared with the prior art, the utility model outstanding and profitable technological effect is: the utility model discloses be provided with spacing portion on the axostylus axostyle, support between spacing portion and sealing washer subassembly and be equipped with elastic support piece, extrude sealing washer subassembly through elastic support piece, take place not hard up or when sealed effect is not good at the sealing washer subassembly, elastic support piece carries out pressure compensation, the sealed effect of reinforcing to the sealing washer subassembly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is an exploded view of the present invention.
The reference numerals in the figures denote the meanings:
1-a shell; 2-a bearing; 3-shaft connecting pin; 4-a spider assembly; 5-shaft lever; 6-a seal ring assembly;
7-a limiting part; 8-a resilient support; 9-upper end plate; 10-a lower end plate; 11-a spring;
13-a first sealing ring; 14-a second sealing ring; 15-a first waterproof sealing ring; 16-a convex ring;
17-a second waterproof sealing ring; 18-a groove; 19-a convex part; 20-fluorine rubber ring; 21-a cross fixing shell;
22-a cross; 23-buckling; 24-a cross-shaped slot; 25-annular groove.
Detailed Description
The invention will be further described with reference to specific embodiments below:
a sealing device of a liquid pump, refer to fig. 1-3, including the body 1, the said body 1 is the rubber material, the outside of the said body 1 has at least one fluorine rubber ring 20, when the sealing device is installed on the liquid pump and used, the outside of the fluorine rubber ring 20 has steel pipes, this embodiment prefers to set up two fluorine rubber rings 20 outside the body 1, the fluorine rubber ring 20 is the one that all elastic body weights at present and resists the medium performance the best, have high temperature resistance, oil resistance, resistance to strong corrosive medium and strong oxidizing agent performance, good mechanical properties, electrical insulation performance, etc.; a shaft connecting pin 3 is arranged in the shell 1 through at least one bearing 2, in the embodiment, preferably, two bearings 2 are arranged in the shell 1, one end of the shaft connecting pin 3 is provided with a cross assembly 4, the cross assembly 4 comprises a cross fixing shell 21 arranged on the shaft connecting pin 3, a cross 22 arranged on the cross fixing shell 21 and a buckle 23 used for limiting the cross 22, and a cross clamping groove 24 matched with the cross 22 and an annular groove 25 matched with the buckle 23 are arranged on the cross fixing shell 21; the other end of the shaft rod 5 is provided with a sealing ring assembly 6, the sealing ring assembly 6 is arranged between the shell 1 and the shaft connecting pin 3 and comprises a first sealing ring 13, a second sealing ring 14 and a first waterproof sealing ring 15, the first sealing ring 13 and the second sealing ring 14 are both in a ring shape and are provided with annular grooves with downward openings, and the first waterproof sealing ring 15 is in a ring shape and is matched with the annular groove of the second sealing ring 14; be provided with spacing portion 7 on axostylus axostyle 5, spacing portion 7 supports between spacing portion 7 and sealing washer subassembly 6 and is equipped with elastic support piece 8 for the gasket of card on axostylus axostyle 5, promptly: the two ends of the elastic supporting piece 8 are mutually abutted with the limiting part 7 and the sealing ring assembly 6 and are in a pre-pressing tension state, the elastic supporting piece 8 comprises an upper end plate 9, a lower end plate 10 and a spring 11 arranged between the upper end plate 9 and the lower end plate 10, sleeving holes are formed in the centers of the upper end plate 9 and the lower end plate 10, the upper end plate 9 and the lower end plate 10 are both in a round bottle cap shape, a convex ring 16 is arranged at the bottom of the upper end plate 9, the upper end of the spring 11 is fixed on the convex ring 16, and the lower part of the spring 11 is arranged in a bottle cap groove of the lower end plate 10; a second waterproof sealing ring 17 is arranged in the bottle cap groove of the upper end plate 9, a groove 18 is formed in the top of the second waterproof sealing ring 17, and a convex part 19 matched with the groove 18 is formed in the bottom of the first waterproof sealing ring 15; the second waterproof sealing ring 17 is annular and is matched with the annular groove of the second sealing ring 14. The utility model discloses be provided with spacing portion 7 on axostylus axostyle 5, support between spacing portion 7 and sealing washer subassembly 6 and be equipped with elastic support element 8, extrude sealing washer subassembly 6 through elastic support element 8, take place not hard up or when sealed effect is not good at sealing washer subassembly 6, elastic support element 8 carries out pressure compensation, the sealed effect of reinforcing to sealing washer subassembly 6.
An infusion pump comprising a sealing arrangement for an infusion pump as described above.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: 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 (10)
1. The sealing device of the liquid pump is characterized by comprising a shell (1), wherein a shaft connecting pin (3) is arranged in the shell (1) through at least one bearing (2), a cross frame assembly (4) is arranged at one end of the shaft connecting pin (3), a shaft rod (5) is arranged at the other end of the shaft connecting pin, a sealing ring assembly (6) is arranged between the shell (1) and the shaft connecting pin (3), a limiting part (7) is arranged on the shaft rod (5), and an elastic supporting piece (8) is arranged between the limiting part (7) and the sealing ring assembly (6) in a supporting mode.
2. A seal assembly for an infusion pump according to claim 1, further comprising: the elastic supporting piece (8) comprises an upper end plate (9), a lower end plate (10) and a spring (11) arranged between the upper end plate (9) and the lower end plate (10), and a sleeving hole is formed in the centers of the upper end plate (9) and the lower end plate (10).
3. A seal assembly for an infusion pump according to claim 2, further comprising: the sealing ring assembly (6) comprises a first sealing ring (13), a second sealing ring (14) and a first waterproof sealing ring (15), the first sealing ring (13) and the second sealing ring (14) are both in a circular ring shape and are provided with annular grooves with downward openings, and the first waterproof sealing ring (15) is in a circular ring shape and is matched with the annular grooves of the second sealing ring (14).
4. A seal for an infusion pump according to claim 3, wherein: the upper end plate (9) and the lower end plate (10) are both in a round bottle cap shape, a convex ring (16) is arranged at the bottom of the upper end plate (9), the upper end of a spring (11) is fixed on the convex ring (16), and the lower portion of the spring (11) is arranged in a bottle cap groove of the lower end plate (10).
5. A seal assembly for an infusion pump according to claim 4, further comprising: a second waterproof sealing ring (17) is arranged in a bottle cap groove of the upper end plate (9), a groove (18) is formed in the top of the second waterproof sealing ring (17), and a convex portion (19) matched with the groove (18) is arranged at the bottom of the first waterproof sealing ring (15).
6. A seal assembly for an infusion pump according to claim 5, further comprising: the second waterproof sealing ring (17) is annular and is matched with the annular groove of the second sealing ring (14).
7. A seal arrangement for an infusion pump according to any one of claims 1 to 6, wherein: the casing (1) is made of rubber, and at least one fluorine rubber ring (20) is arranged on the outer side of the casing (1).
8. A seal arrangement for an infusion pump according to any one of claims 1 to 6, wherein: the limiting part (7) is a gasket clamped on the shaft lever (5).
9. A seal arrangement for an infusion pump according to any one of claims 1 to 6, wherein: the cross frame assembly (4) comprises a cross fixing shell (21) arranged on the shaft connecting pin (3), a cross (22) arranged on the cross fixing shell (21) and a buckle (23) used for limiting the cross (22), wherein a cross clamping groove (24) matched with the cross (22) and an annular groove (25) matched with the buckle (23) are formed in the cross fixing shell (21).
10. A liquid extraction pump comprising a sealing arrangement for a liquid extraction pump according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021714845.4U CN212839396U (en) | 2020-08-17 | 2020-08-17 | Sealing device of liquid pump and liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021714845.4U CN212839396U (en) | 2020-08-17 | 2020-08-17 | Sealing device of liquid pump and liquid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212839396U true CN212839396U (en) | 2021-03-30 |
Family
ID=75136930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021714845.4U Active CN212839396U (en) | 2020-08-17 | 2020-08-17 | Sealing device of liquid pump and liquid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212839396U (en) |
-
2020
- 2020-08-17 CN CN202021714845.4U patent/CN212839396U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 321302 no.523, Xixin village, Jiangnan street, Yongkang City, Jinhua City, Zhejiang Province Patentee after: Xu Shuguang Address before: No. 523, shangxixin village, Jiangnan street, Yongkang City, Taizhou City, Zhejiang Province Patentee before: Xu Shuguang |
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| CP02 | Change in the address of a patent holder |