CN214836910U - Combined plunger pump assembly - Google Patents
Combined plunger pump assembly Download PDFInfo
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- CN214836910U CN214836910U CN202121248287.1U CN202121248287U CN214836910U CN 214836910 U CN214836910 U CN 214836910U CN 202121248287 U CN202121248287 U CN 202121248287U CN 214836910 U CN214836910 U CN 214836910U
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Abstract
The utility model discloses a combined plunger pump assembly, which comprises at least two plunger pumps, wherein each plunger pump comprises a pump body, the pump body comprises a first end and a second end, a piston is arranged in the pump body, the piston and the first end of the pump body form a dynamically sealed liquid cavity, and an inflow pipeline and an outflow pipeline are communicated on the liquid cavity; the piston is connected with a rack, the rack is meshed with the gear, and the rack can be driven by the gear to move back and forth in the pump body; the two plunger pumps are arranged in parallel or in series, so that racks of the two plunger pumps are driven by the same gear, and when one plunger pump feeds liquid, the other plunger pump discharges liquid. The utility model obtains continuous flow input and output or pulse flow input and output through the serial or parallel combination of the plunger pumps and the different combination of the outflow pipeline and the inflow pipeline of the combined blocking pump; different use requirements are met, and the application range is wide.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a modular plunger pump subassembly.
Background
The plunger pump is an important device of the hydraulic system. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like. Plunger pumps are widely used in the mechanical field.
In view of the advantages of the plunger pump, the plunger pump is applied to the field of medical appliances, most of the existing plunger pumps are single-cylinder reciprocating type, the structure is simple and reliable, pulse type input and output of liquid can be realized, and the flow can be accurately input and output under the accurate control of a power source, so that the plunger pump is widely used. However, the single-cylinder reciprocating pump plunger pump has the following disadvantages: 1. continuous input and output cannot be realized; 2. input and output synchronization cannot be realized. The method is not suitable for occasions needing continuous input and output or input and output synchronous operation. Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a modular plunger pump subassembly is provided, solve current plunger pump and can not realize that input/output goes on in step and can not realize the problem of continuous input and output.
The technical solution adopted by the present invention to solve the above technical problems is to provide a combined plunger pump assembly, comprising at least two plunger pumps, each plunger pump comprising a pump body, the pump body comprising a first end and a second end, a piston arranged in the pump body, the piston and the first end of the pump body forming a dynamically sealed liquid chamber, the liquid chamber being provided with an inflow pipeline and an outflow pipeline; the piston is connected with a rack, the rack is meshed with the gear, the rack can be driven by the gear to move back and forth in the pump body, and when the piston moves towards the first end, the liquid cavity discharges liquid to the outflow pipeline through the one-way valve; when the piston moves towards the second end, the inflow pipeline feeds liquid into the liquid cavity through the one-way valve; the two plunger pumps are arranged in parallel or in series, so that racks of the two plunger pumps are driven by the same gear, and when one plunger pump feeds liquid, the other plunger pump discharges liquid.
Furthermore, a first one-way valve is arranged on the outflow pipeline, and the liquid cavity discharges liquid to the outflow pipeline through the first one-way valve; and the inflow pipeline is provided with a second one-way valve, and the inflow pipeline feeds liquid into the liquid cavity through the second one-way valve.
Further, including parallelly connected first plunger pump and the second plunger pump that sets up, first plunger pump and second plunger pump parallel arrangement, the first rack of first plunger pump sets up with the second rack of second plunger pump relatively, the gear setting is between first rack and second rack and simultaneously with first rack and second rack meshing, during gear revolve, first rack and second rack reverse movement.
The first plunger pump and the second plunger pump are arranged in series, the second end of the first plunger pump is opposite to the second end of the second plunger pump, a first rack of the first plunger pump and a second rack of the second plunger pump are connected into a whole, the gear is meshed with the first rack and the second rack, and when the gear rotates and the first rack moves to the first end of the first plunger pump, the second rack moves to the second end of the second plunger pump; the first rack moves toward the first end of the first plunger pump, and the second rack moves toward the second end of the second plunger pump.
Further, a first inflow pipeline of the first plunger pump and a second inflow pipeline of the second plunger pump are communicated with the inflow header pipe in parallel; and the first outflow pipeline of the first plunger pump and the second outflow pipeline of the second plunger pump are connected in parallel and communicated to the outflow header pipe.
Furthermore, the cross sections of the inner cavity of the pump body and the piston are both circular, and a sealing ring is arranged on the piston, so that dynamic sealing is formed between the piston and the pump body; the piston and the rack are integrally formed or are connected into a whole through splicing, bonding and a pagoda joint.
Furthermore, the inflow pipeline and the pump body and the outflow pipeline and the pump body are connected or bonded through pagoda joints; the inflow pipeline and the one-way valve and the outflow pipeline and the one-way valve are connected or bonded through the pagoda joint.
Furthermore, the first inflow pipeline, the second inflow pipeline and the inflow header pipe as well as the first outflow pipeline, the second outflow pipeline and the outflow header pipe are connected through tee joints, and the tee joints are connected through pagoda joints or bonded.
The utility model discloses contrast prior art has following beneficial effect: the utility model provides a combined plunger pump assembly, through the serial-type or parallel combination of plunger pump to and the different combination of the outflow pipeline and the inflow pipeline of the stopper pump after the combination can obtain continuous flow input output and pulse flow input output, realize that input output goes on in step and continuous input and output; the diameter of the pistons of the two groups of plunger pumps can be changed to realize input and output with the same flow or input and output with different flows; different use requirements are met through different combinations, and the application range is wider.
Drawings
Fig. 1 is a schematic structural diagram of a combined plunger pump assembly according to a first embodiment of the present invention;
fig. 2 is a structural schematic diagram of a combined plunger pump assembly according to a first embodiment of the invention;
fig. 3 is a structural schematic view of a combined plunger pump assembly according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a combined plunger pump assembly according to a third embodiment of the present invention;
fig. 5 is a structural schematic diagram of a combined plunger pump assembly according to a third embodiment of the present invention;
fig. 6 is a structural configuration view of a combined plunger pump assembly according to the fourth embodiment of the present invention.
In the figure:
1-1, a pump body; 1-2 pump bodies; 2-1, a piston; 2-2, a piston; 3-1, a liquid cavity; 3-2, a liquid cavity; 4-1, an inflow pipeline; 4-2, an inflow pipeline; 5-1, an outflow pipeline; 5-2, an outflow pipeline; 6-1, a rack; 6-2, a rack; 7. a gear; 8-1, a first one-way valve; 8-2, a first one-way valve; 9-1, a second one-way valve; 9-2, a second one-way valve; 10. an inflow header pipe; 11. and flows out of the header pipe.
Detailed Description
The invention is further described with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of a combined plunger pump assembly according to a first embodiment of the present invention; fig. 2 is a structural schematic diagram of a combined plunger pump assembly according to a first embodiment of the invention;
referring to fig. 1 and 2, a combined plunger pump assembly according to a first embodiment of the present invention includes a first plunger pump and a second plunger pump, which are arranged in parallel, the first plunger pump and the second plunger pump are arranged in parallel, the first plunger pump includes a pump body 1-1, the pump body 1-1 includes a first end and a second end, a piston 2-1 is disposed in the pump body 1-1, the piston 2-1 and the first end of the pump body 1-1 form a dynamically sealed liquid chamber 3-1, and an inflow pipeline 4-1 and an outflow pipeline 5-1 are communicated with the liquid chamber 3-1; the piston 2-1 is connected with a rack 6-1, the rack 6-1 is meshed with a gear 7, and the rack 6-1 can be driven by the gear 7 to move back and forth in the pump body 1-1; the outflow pipeline 5-1 is provided with a first one-way valve 8-1, and the liquid cavity 3-1 discharges liquid to the outflow pipeline 5-1 through the first one-way valve 8-1; the inflow pipeline 4-1 is provided with a second one-way valve 9-1, and the inflow pipeline 4-1 feeds liquid into the liquid cavity 3-1 through the second one-way valve 9-1.
The second plunger pump comprises a pump body 1-2, the pump body 1-2 comprises a first end and a second end, a piston 2-2 is arranged in the pump body 1-2, the piston 2-2 and the first end of the pump body 1-2 form a dynamically sealed liquid cavity 3-2, and an inflow pipeline 4-2 and an outflow pipeline 5-2 are communicated with the liquid cavity 3-2; the piston 2-2 is connected with a rack 6-2, the rack 6-1 is meshed with a gear 7, and the rack 6-2 can be driven by the gear 7 to move back and forth in the pump body 1-2; the outflow pipeline 5-2 is provided with a first one-way valve 8-2, and the liquid cavity 3-2 discharges liquid to the outflow pipeline 5-2 through the first one-way valve 8-2; the inflow pipeline 4-2 is provided with a second one-way valve 9-2, and the inflow pipeline 4-2 feeds liquid to the liquid cavity 3-2 through the second one-way valve 9-2.
The rack 6-1 of the first plunger pump is arranged opposite to the rack 6-2 of the second plunger pump, the gear 7 is arranged between the rack 6-1 and the rack 6-2 and is simultaneously meshed with the rack 6-1 and the rack 6-2, and when the gear 7 rotates, the rack 6-1 and the rack 6-2 move reversely.
When the gear 7 rotates to drive the piston 2-1 to move towards the first end of the first plunger pump, the liquid cavity 3-1 discharges liquid to the outflow pipeline 5-1; simultaneously, the piston 2-2 moves towards the second end of the second plunger pump, and the inflow pipeline 4-2 feeds liquid to the liquid cavity 3-2; when the gear 7 rotates to drive the piston 2-1 to move towards the second end of the first plunger pump, the inflow pipeline 4-1 feeds liquid into the liquid cavity 3-1; simultaneously, the piston 2-2 moves towards the first end of the second plunger pump, and the liquid cavity 3-2 discharges liquid to the outflow pipeline 5-2; and realizing the alternate input and output of two pulse streams.
The inner diameter of the pump body 1-1 can be the same as or different from that of the pump body 1-2, and the alternate input and output of two paths of pulse flows with the same flow or different flows can be realized by changing the inner diameter.
Referring to fig. 3, the combined plunger pump assembly according to the second embodiment of the present invention includes a first plunger pump and a second plunger pump, which are connected in parallel, and have the same structure as that of the first embodiment, and the inflow pipeline 4-1 of the first plunger pump and the inflow pipeline 4-2 of the second plunger pump are connected in parallel to the inflow header pipe 10 on the basis of the first embodiment; the outflow pipeline 5-1 of the first plunger pump and the outflow pipeline 5-2 of the second plunger pump are connected in parallel and communicated to an outflow header pipe 11.
When the gear 7 rotates to drive the piston 2-1 to move towards the first end of the first plunger pump, the liquid cavity 3-1 discharges liquid to the outflow header pipe 11; simultaneously, the piston 2-2 moves towards the second end of the second plunger pump and flows into the main pipe 10 to feed liquid into the liquid cavity 3-2; when the gear 7 rotates to drive the piston 2-1 to move towards the second end of the first plunger pump, the inflow header pipe 10 feeds liquid to the liquid cavity 3-1; simultaneously, the piston 2-2 moves towards the first end of the second plunger pump, and the liquid cavity 3-2 flows towards the outflow header pipe 11; and realizing input and output of a continuous flow.
The inner diameter of the pump body 1-1 and the inner diameter of the pump body 1-2 can be the same or different, and one path of input and output of continuous flow with constant flow or variable flow is realized by changing the inner diameter.
Referring to fig. 4 and 5, a combined plunger pump assembly according to a third embodiment of the present invention includes a first plunger pump and a second plunger pump which are arranged in series, the first plunger pump and the second plunger pump are arranged oppositely, the first plunger pump includes a pump body 1-1, the pump body 1-1 includes a first end and a second end, a piston 2-1 is disposed in the pump body 1-1, the piston 2-1 and the first end of the pump body 1-1 form a dynamically sealed liquid chamber 3-1, and an inflow pipeline 4-1 and an outflow pipeline 5-1 are communicated with the liquid chamber 3-1; the piston 2-1 is connected with a rack 6-1, the rack 6-1 is meshed with a gear 7, and the rack 6-1 can be driven by the gear 7 to move back and forth in the pump body 1-1; the outflow pipeline 5-1 is provided with a first one-way valve 8-1, and the liquid cavity 3-1 discharges liquid to the outflow pipeline 5-1 through the first one-way valve 8-1; the inflow pipeline 4-1 is provided with a second one-way valve 9-1, and the inflow pipeline 4-1 feeds liquid into the liquid cavity 3-1 through the second one-way valve 9-1.
The second plunger pump comprises a pump body 1-2, the pump body 1-2 comprises a first end and a second end, a piston 2-2 is arranged in the pump body 1-2, the piston 2-2 and the first end of the pump body 1-2 form a dynamically sealed liquid cavity 3-2, and an inflow pipeline 4-2 and an outflow pipeline 5-2 are communicated with the liquid cavity 3-2; the piston 2-2 is connected with a rack 6-2, the rack 6-1 is meshed with a gear 7, and the rack 6-2 can be driven by the gear 7 to move back and forth in the pump body 1-2; the outflow pipeline 5-2 is provided with a first one-way valve 8-2, and the liquid cavity 3-2 discharges liquid to the outflow pipeline 5-2 through the first one-way valve 8-2; the inflow pipeline 4-2 is provided with a second one-way valve 9-2, and the inflow pipeline 4-2 feeds liquid to the liquid cavity 3-2 through the second one-way valve 9-2.
The second end of the first plunger pump and the second end of the second plunger pump are oppositely arranged, the rack 6-1 of the first plunger pump and the rack 6-2 of the second plunger pump are connected into a whole, and the gear 7 is meshed with the racks 6-1 and 6-2.
When the gear 7 rotates to drive the piston 2-1 to move towards the first end of the first plunger pump, the liquid cavity 3-1 discharges liquid to the outflow pipeline 5-1; simultaneously, the piston 2-2 moves towards the second end of the second plunger pump, and the inflow pipeline 4-2 feeds liquid to the liquid cavity 3-2; when the gear 7 rotates to drive the piston 2-1 to move towards the second end of the first plunger pump, the inflow pipeline 4-1 feeds liquid into the liquid cavity 3-1; simultaneously, the piston 2-2 moves towards the first end of the second plunger pump, and the liquid cavity 3-2 discharges liquid to the outflow pipeline 5-2; and realizing the alternate input and output of two pulse streams.
The inner diameter of the pump body 1-1 can be the same as or different from that of the pump body 1-2, and the alternate input and output of two paths of pulse flows with the same flow or different flows can be realized by changing the inner diameter.
Referring to fig. 6, a combined plunger pump assembly according to a fourth embodiment of the present invention includes a first plunger pump and a second plunger pump which are connected in series, and has a structure completely the same as that of the third embodiment, and an inflow pipeline 4-1 of the first plunger pump and an inflow pipeline 4-2 of the second plunger pump are connected in parallel to an inflow header pipe 10 on the basis of the third embodiment; the outflow pipeline 5-1 of the first plunger pump and the outflow pipeline 5-2 of the second plunger pump are connected in parallel and communicated to an outflow header pipe 11.
When the gear 7 rotates to drive the piston 2-1 to move towards the first end of the first plunger pump, the liquid cavity 3-1 discharges liquid to the outflow header pipe 11; simultaneously, the piston 2-2 moves towards the second end of the second plunger pump and flows into the main pipe 10 to feed liquid into the liquid cavity 3-2; when the gear 7 rotates to drive the piston 2-1 to move towards the second end of the first plunger pump, the inflow header pipe 10 feeds liquid to the liquid cavity 3-1; simultaneously, the piston 2-2 moves towards the first end of the second plunger pump, and the liquid cavity 3-2 flows towards the outflow header pipe 11; and realizing input and output of a continuous flow.
The inner diameter of the pump body 1-1 and the inner diameter of the pump body 1-2 can be the same or different, and one path of input and output of continuous flow with constant flow or variable flow is realized by changing the inner diameter.
Specifically, the cross sections of the inner cavities of the pump bodies 1-1 and 1-2 and the pistons 2-1 and 2-2 are circular, and the pistons 2-1 and 2-2 are provided with sealing rings, so that dynamic sealing is formed between the pistons 2-1 and 2-2 and the pump bodies 1-1 and 1-2; the pistons 2-1 and 2-2 and the racks 6-1 and 6-2 are integrally formed or are connected into a whole through splicing, bonding and pagoda joints.
Specifically, the inflow pipelines 4-1 and 4-2 and the pump bodies 1-1 and 1-2 and the outflow pipelines 5-1 and 5-2 and the pump bodies 1-1 and 1-2 are connected or bonded through pagoda joints; the inflow pipelines 4-1 and 4-2 and the second one-way valves 9-1 and 9-2 and the outflow pipelines 5-1 and 5-2 and the first one-way valves 8-1 and 8-2 are connected or bonded through pagoda joints.
Specifically, the inflow pipelines 4-1 and 4-2 are connected with the inflow header pipe 10 and the outflow pipelines 5-1 and 5-2 are connected with the outflow header pipe 11 through tee joints, and the tee joints are connected or bonded through pagoda joints.
The plunger pump assembly of each embodiment can also be used in a blood conveying scene, for example, in the case of blood vessel blockage, and can be used for constructing a blood vessel bypass to realize the suction and discharge of blood.
To sum up, the combined plunger pump assembly of the embodiment of the present invention can obtain continuous flow input/output and pulse flow input/output by the serial or parallel combination of the plunger pumps and the different combinations of the outflow pipelines 5-1 and 5-2 and the inflow pipelines 4-1 and 4-2 of the combined blocking pump, so as to realize synchronous input/output and continuous input/output; the input and output of the same flow or the input and output of different flows can be realized by changing the inner diameters of the pump bodies 1-1 and 1-2 of the two groups of plunger pumps; different use requirements are met through different combinations, and the application range is wider.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A combined plunger pump assembly is characterized by comprising at least two plunger pumps, wherein each plunger pump comprises a pump body, the pump body comprises a first end and a second end, a piston is arranged in the pump body, the piston and the first end of the pump body form a dynamically sealed liquid cavity, and an inflow pipeline and an outflow pipeline are communicated and arranged on the liquid cavity; the piston is connected with a rack, the rack is meshed with the gear, the rack can be driven by the gear to move back and forth in the pump body, and when the piston moves towards the first end, the liquid cavity discharges liquid to the outflow pipeline through the one-way valve; when the piston moves towards the second end, the inflow pipeline feeds liquid into the liquid cavity through the one-way valve; the two plunger pumps are arranged in parallel or in series, so that racks of the two plunger pumps are driven by the same gear, and when one plunger pump feeds liquid, the other plunger pump discharges liquid.
2. The modular plunger pump assembly of claim 1 wherein a first one-way valve is disposed on said outflow conduit, said fluid chamber being vented to said outflow conduit through said first one-way valve; and the inflow pipeline is provided with a second one-way valve, and the inflow pipeline feeds liquid into the liquid cavity through the second one-way valve.
3. The modular plunger pump assembly of claim 1 comprising a first plunger pump and a second plunger pump arranged in parallel, said first plunger pump and said second plunger pump arranged in parallel, a first rack of said first plunger pump arranged opposite a second rack of said second plunger pump, said gear disposed between and simultaneously meshing with said first rack and said second rack, said first rack and said second rack moving in opposite directions when said gear is rotated.
4. The modular plunger pump assembly of claim 1, comprising a first plunger pump and a second plunger pump arranged in series, wherein a second end of the first plunger pump is arranged opposite to a second end of the second plunger pump, wherein a first rack of the first plunger pump is integrally connected to a second rack of the second plunger pump, wherein the gear is engaged with both the first rack and the second rack, and wherein the second rack moves towards the second end of the second plunger pump when the gear rotates and the first rack moves towards the first end of the first plunger pump; the first rack moves toward the first end of the first plunger pump, and the second rack moves toward the second end of the second plunger pump.
5. The compound plunger pump assembly of claim 3 or 4, wherein the first inlet line of the first plunger pump communicates in parallel with the second inlet line of the second plunger pump to an inlet manifold; and the first outflow pipeline of the first plunger pump and the second outflow pipeline of the second plunger pump are connected in parallel and communicated to the outflow header pipe.
6. The modular plunger pump assembly of claim 1 wherein the cross-sections of the chamber of the pump body and the piston are circular, and the piston is provided with a sealing ring to form a dynamic seal between the piston and the pump body; the piston and the rack are integrally formed or are connected into a whole through splicing, bonding and a pagoda joint.
7. The modular plunger pump assembly of claim 1 wherein the inlet line is connected or bonded to the pump body and the outlet line is connected or bonded to the pump body by means of a pagoda joint; the inflow pipeline and the one-way valve and the outflow pipeline and the one-way valve are connected or bonded through the pagoda joint.
8. The modular plunger pump assembly of claim 5 wherein the first inlet line, the second inlet line and the inlet manifold and the first outlet line, the second outlet line and the outlet manifold are connected by a tee joint, wherein the tee joint is made by a pagoda joint or by adhesive bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121248287.1U CN214836910U (en) | 2021-06-04 | 2021-06-04 | Combined plunger pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121248287.1U CN214836910U (en) | 2021-06-04 | 2021-06-04 | Combined plunger pump assembly |
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| Publication Number | Publication Date |
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| CN214836910U true CN214836910U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121248287.1U Active CN214836910U (en) | 2021-06-04 | 2021-06-04 | Combined plunger pump assembly |
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| CN (1) | CN214836910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234051A (en) * | 2022-01-10 | 2022-03-25 | 西安振宇电子工程有限公司 | Multi-pump integrated mixed fluid conveying device |
| CN116221051A (en) * | 2023-04-23 | 2023-06-06 | 武汉市王利军科技有限公司 | Plunger pump |
-
2021
- 2021-06-04 CN CN202121248287.1U patent/CN214836910U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234051A (en) * | 2022-01-10 | 2022-03-25 | 西安振宇电子工程有限公司 | Multi-pump integrated mixed fluid conveying device |
| CN114234051B (en) * | 2022-01-10 | 2024-05-14 | 西安振宇电子工程有限公司 | Multi-pump integrated mixed fluid conveying device |
| CN116221051A (en) * | 2023-04-23 | 2023-06-06 | 武汉市王利军科技有限公司 | Plunger pump |
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Address after: No.36, Lane 100, Banxia Road, Pudong New Area, Shanghai, 201318 Patentee after: Fengkaili medical instrument (Shanghai) Co.,Ltd. Address before: No.36, Lane 100, Banxia Road, Pudong New Area, Shanghai, 201318 Patentee before: FORQALY MEDICAL (SHANGHAI) Co.,Ltd. |