CN220059870U - Isolation conveying pump head - Google Patents
Isolation conveying pump head Download PDFInfo
- Publication number
- CN220059870U CN220059870U CN202321423439.6U CN202321423439U CN220059870U CN 220059870 U CN220059870 U CN 220059870U CN 202321423439 U CN202321423439 U CN 202321423439U CN 220059870 U CN220059870 U CN 220059870U
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- Prior art keywords
- pump head
- connecting rod
- pump
- flexible deformation
- cavity
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Links
- 238000002955 isolation Methods 0.000 title abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model belongs to the technical field of accessories of an isolation conveying pump, and particularly relates to an isolation conveying pump head. The utility model provides an isolation delivery pump head, which aims to solve the problem that moving parts of an isolation delivery pump are easy to wear in the prior art. An isolated delivery pump head comprises a front pump head, a rear pump head and a connecting rod, wherein a pump cavity is arranged in the front pump head, a through hole matched with the connecting rod is arranged in the rear pump head, and the connecting rod extends into the pump cavity through the through hole; the flexible deformation pipe is arranged between the front pump head and the rear pump head and used for sealing the pump cavity, the flexible deformation pipe comprises a bottom which reciprocates in the pump cavity, and the connecting rod is fixedly connected with the bottom. Through setting up flexible deformation pipe, the connecting rod does not directly contact with the inner wall of pump chamber, and the connecting rod can not produce wearing and tearing with the inner wall of pump chamber at reciprocating motion process to further make the moving part be difficult for by wearing and tearing.
Description
Technical Field
The utility model belongs to the technical field of accessories of an isolation conveying pump, and particularly relates to an isolation conveying pump head.
Background
The isolation delivery pump is one of the delivery pumps and is mainly used for delivering fluid, and the moving parts of the delivery pump are not contacted with the delivered fluid in the process of delivering the fluid, so that the moving parts can be prevented from being corroded, or the delivered fluid can be prevented from being polluted.
The isolation delivery pump in the prior art comprises a front pump head, a rear pump head and a connecting rod, wherein a pump cavity is arranged in the front pump head, and the connecting rod reciprocates in the pump cavity. Although the transfer pump with the structure can meet the requirement of transferring fluid, the moving parts of the isolation transfer pump are easily worn in the fluid transfer process.
Disclosure of Invention
The utility model provides an isolation delivery pump head, which aims to solve the problem that moving parts of an isolation delivery pump are easy to wear in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an isolated delivery pump head comprises a front pump head, a rear pump head and a connecting rod, wherein a pump cavity is arranged in the front pump head, a through hole matched with the connecting rod is arranged in the rear pump head, and the connecting rod extends into the pump cavity through the through hole;
the flexible deformation pipe is arranged between the front pump head and the rear pump head and used for sealing the pump cavity, the flexible deformation pipe comprises a bottom which reciprocates in the pump cavity, and the connecting rod is fixedly connected with the bottom.
The further improved scheme is as follows: the flexible deformation pipe further comprises a side part with an elastic deformation function, the side part and the bottom are of an integrated structure, and the side part is sleeved on the connecting rod.
Based on the technical scheme: the side part is sleeved on the connecting rod, the connecting rod plays a role in guiding the side part, and when the side part is extruded to generate compression deformation, the connecting rod can correct the deformation direction of the side part, so that the side part only generates axial deformation, and the side part can be prevented from being misplaced to generate radial deformation.
The further improved scheme is as follows: the side part is a telescopic pipe.
Based on the technical scheme: the telescopic pipe is easy to process and low in manufacturing cost.
The further improved scheme is as follows: the flexible deformation tube further comprises a fixing portion arranged at one end of the side portion away from the bottom.
Based on the technical scheme: by providing the fixing portion, the flexible deformation tube can be conveniently fixed on the front pump head.
The further improved scheme is as follows: the front pump head is provided with an accommodating groove for accommodating the fixing part, and the fixing part is fixed in the accommodating groove through a screw.
Based on the technical scheme: through setting up the holding tank, fixed part and back pump head contactless, perhaps, back pump head installs behind the preceding pump head, and fixed part is difficult for being extruded, and fixed part is difficult for being damaged.
The further improved scheme is as follows: and a tetrafluoro gasket is arranged between the fixing part and the bottom wall of the accommodating groove.
Based on the technical scheme: the tetrafluoro gasket has better sealing performance, so that the fixing part and the front pump head have better sealing performance, and the pump cavity has better sealing performance.
The further improved scheme is as follows: the fixing part and the side part are of an integrated structure, and the fixing part is annular.
Based on the technical scheme: the fixed part is set to annular, and the fixed part sets up around the opening part of pump chamber for pump chamber open-ended circumference within range all can be sealed through the tetrafluoro gasket by the fixed part, thereby makes the pump chamber have better sealing performance.
The further improved scheme is as follows: the rear pump head is fixed on the front pump head through screws.
Based on the technical scheme: the rear pump head and the front pump head are easy to assemble and disassemble, and the flexible deformation pipe can be conveniently replaced or maintained after the rear pump head is disassembled as the fixing part is positioned between the front pump head and the rear pump head.
The further improved scheme is as follows: the connecting rod comprises a rod body and a connecting body inserted into the side part, and the bottom is fixedly connected with the rod body through the connecting body.
Based on the technical scheme: the connecting body and the rod body can be independently replaced.
The further improved scheme is as follows: the connecting body is fixed on the rod body through threads, an external thread is arranged on the rod body, and an internal thread is arranged on the connecting body.
Based on the technical scheme: the connecting piece and the rod body are easy to assemble and disassemble, so that the connecting body and the rod body are easy to replace or maintain independently.
The beneficial effects of the utility model are as follows:
the flexible deformation pipe is driven by the connecting rod to deform in the pump cavity, a cavity for temporarily storing liquid is formed between the pump cavity and the outer wall of the flexible deformation pipe, and the fluid conveyed after the machine is stopped can not be deposited on the flexible deformation pipe, so that the flexible deformation pipe is not easy to damage, and further the flexible deformation pipe is not easy to wear.
Through setting up flexible deformation pipe, the connecting rod does not directly contact with the inner wall of pump chamber, and the connecting rod can not produce wearing and tearing with the inner wall of pump chamber at reciprocating motion process to further make the moving part be difficult for by wearing and tearing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for the users of the art.
Fig. 1 is a schematic view of the internal structure of an isolated delivery pump head.
Fig. 2 is a schematic illustration of a flexible deformation tube in an isolated delivery pump head.
Fig. 3 is a schematic diagram of an isolated delivery pump head.
The reference numerals in the figures illustrate:
1-a front pump head; 11-a pump chamber; 12-a receiving groove; 2-a rear pump head; 21-a through hole; 3-connecting rod; 31-a rod body; a 32-linker; 4-a flexible deformation tube; 41-bottom; 42-side; 43-a fixing part; 5-tetrafluoro gasket.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. All other embodiments, which can be obtained by the user of the field without creative efforts, are included in the protection scope of the present utility model based on the embodiments of the present utility model.
Embodiment one:
referring to fig. 1 to 3, an isolated delivery pump head comprises a front pump head 1, a rear pump head 2 and a connecting rod 3, wherein a pump cavity 11 is arranged in the front pump head 1, a through hole 21 matched with the connecting rod 3 is arranged in the rear pump head 2, and the connecting rod 3 extends into the pump cavity 11 through the through hole 21;
a flexible deformation pipe 4 for sealing the pump cavity 11 is arranged between the front pump head 1 and the rear pump head 2, the flexible deformation pipe 4 comprises a bottom 41 which reciprocates in the pump cavity 11, and the connecting rod 3 is fixedly connected with the bottom 41.
The link 3 may be driven by a cam or other drive mechanism that drives the link 3 to reciprocate in the axial direction.
Embodiment two:
referring to fig. 1 to 2, in order to make the flexible deformation tube 4 have higher precision in the deformation process, the flexible deformation tube 4 is not easy to be misplaced or pulled in the deformation process, and the above embodiments are based on the above embodiments: the flexible deformation tube 4 further comprises a side portion 42 with an elastic deformation function, the side portion 42 and the bottom portion 41 are of an integral structure, and the side portion 42 is sleeved on the connecting rod 3.
The inner walls of the side walls may or may not be in contact with the connecting rod 3, and the inner walls of the side portions 42 may or may not be in contact with the connecting rod 3.
The side portion 42 is a telescoping tube. Other similar structures may be substituted for side 42.
Embodiment III:
referring to fig. 1 to 2, in order to provide the pump chamber 11 with better sealing performance, the above embodiments are based on: the flexible deformation tube 4 further comprises a fixing portion 43, wherein the fixing portion 43 is disposed at one end of the side portion 42 away from the bottom portion 41. The flexible deformation tube 4 seals the pump chamber 11 by the fixing portion 43.
The front pump head 1 is provided with a receiving groove 12 that receives the fixing portion 43, and the fixing portion 43 is fixed in the receiving groove 12 by a screw.
A tetrafluoro gasket 5 is provided between the fixing portion 43 and the bottom wall of the accommodating groove 12. The tetrafluoro gasket 5 can be replaced by other gaskets with sealing performance.
The fixing portion 43 and the side portion 42 are integrally formed, and the fixing portion 43 is annular. The bottom 41 and the side 42 are integrally formed or spliced.
Embodiment four:
referring to fig. 1 to 2, in order to facilitate the assembly of the rear pump head 2 with the front pump head 1, the above embodiments are based on: the rear pump head 2 is fixed on the front pump head 1 through screws. The front pump head 1 is provided with a screw hole matched with a screw, and the rear pump head 2 is provided with a through hole 21 matched with the screw.
Fifth embodiment:
referring to fig. 1 to 2, in order to make the link 3 easy to maintain, the above embodiment is based on: the connecting rod 3 comprises a rod body 31 and a connecting body 32 inserted into the side part 42, and the bottom 41 is fixedly connected with the rod body 31 through the connecting body 32.
The connecting body 32 is fixed on the rod body 31 through threads, external threads are arranged on the rod body 31, and internal threads are arranged on the connecting body 32.
The diameter of the external thread part arranged on the rod body 31 is smaller than the diameter of other parts of the rod body 31, and the part of the rod body 31 provided with the external thread part and other parts of the rod body 31 are in smooth transition through a chamfer structure.
The utility model provides an isolated delivery pump head which is further described below by combining with the working principle:
the connecting rod 3 is driven by the driving mechanism to push the flexible deformation pipe 4 to the pump cavity 11, the volume of the pump cavity 11 is reduced, the medium in the pump cavity 11 pushes the outlet one-way valve open, and meanwhile, the suction inlet one-way valve is closed to convey the medium outwards.
The connecting rod 3 is driven by the driving mechanism to move the flexible deformation pipe 4 in a direction away from the pump cavity 11, the volume of the pump cavity 11 is increased, the suction inlet check valve is opened, the outlet check valve is closed, and the conveying medium is sucked.
The flexible deformation pipe 4 periodically stretches and contracts along with the reciprocation of the connecting rod 3, so that the volume of the pump cavity 11 periodically changes, and the purpose of sucking and conveying media is achieved.
The utility model is not limited to the above-mentioned alternative embodiments, on the premise of not contradicting each other, can combine arbitrarily between every scheme; any person who is in the light of the present utility model can obtain other products in various forms, however, any changes in shape or structure are within the scope of the present utility model as defined by the claims.
Claims (10)
1. An isolated delivery pump head, characterized in that: the pump comprises a front pump head, a rear pump head and a connecting rod, wherein a pump cavity is arranged in the front pump head, a through hole matched with the connecting rod is arranged in the rear pump head, and the connecting rod extends into the pump cavity through the through hole;
the flexible deformation pipe is arranged between the front pump head and the rear pump head and used for sealing the pump cavity, the flexible deformation pipe comprises a bottom which reciprocates in the pump cavity, and the connecting rod is fixedly connected with the bottom.
2. An isolated delivery pump head as in claim 1, wherein: the flexible deformation pipe further comprises a side part with an elastic deformation function, the side part and the bottom are of an integrated structure, and the side part is sleeved on the connecting rod.
3. An isolated delivery pump head as in claim 2, wherein: the side part is a telescopic pipe.
4. An isolated delivery pump head as claimed in claim 2 or claim 3, wherein: the flexible deformation tube further comprises a fixing portion arranged at one end of the side portion away from the bottom.
5. An isolated delivery pump head as in claim 4, wherein: the front pump head is provided with an accommodating groove for accommodating the fixing part, and the fixing part is fixed in the accommodating groove through a screw.
6. An isolated delivery pump head as in claim 5, wherein: and a tetrafluoro gasket is arranged between the fixing part and the bottom wall of the accommodating groove.
7. An isolated delivery pump head as in claim 6, wherein: the fixing part and the side part are of an integrated structure, and the fixing part is annular.
8. An isolated delivery pump head as in claim 1, wherein: the rear pump head is fixed on the front pump head through screws.
9. An isolated delivery pump head as in claim 2, wherein: the connecting rod comprises a rod body and a connecting body inserted into the side part, and the bottom is fixedly connected with the rod body through the connecting body.
10. An isolated delivery pump head as in claim 9, wherein: the connecting body is fixed on the rod body through threads, an external thread is arranged on the rod body, and an internal thread is arranged on the connecting body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321423439.6U CN220059870U (en) | 2023-06-06 | 2023-06-06 | Isolation conveying pump head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321423439.6U CN220059870U (en) | 2023-06-06 | 2023-06-06 | Isolation conveying pump head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059870U true CN220059870U (en) | 2023-11-21 |
Family
ID=88750731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321423439.6U Active CN220059870U (en) | 2023-06-06 | 2023-06-06 | Isolation conveying pump head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220059870U (en) |
-
2023
- 2023-06-06 CN CN202321423439.6U patent/CN220059870U/en active Active
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