CN211448917U - Cylinder-free double-acting pneumatic injection pump - Google Patents
Cylinder-free double-acting pneumatic injection pump Download PDFInfo
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- CN211448917U CN211448917U CN201922144000.XU CN201922144000U CN211448917U CN 211448917 U CN211448917 U CN 211448917U CN 201922144000 U CN201922144000 U CN 201922144000U CN 211448917 U CN211448917 U CN 211448917U
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Abstract
The invention discloses a cylinder-free double-acting pneumatic injection pump, which comprises a cylinder body, wherein a partition plate is arranged in the middle of the cylinder body and divides the cylinder body into a first cavity and a second cavity which are not communicated with each other, a piston rod is connected onto the partition plate in a sliding manner, two ends of the piston rod are respectively provided with a piston, a first channel and a second channel are arranged on the partition plate, the first channel is communicated with the first cavity and the outside, the second channel is communicated with the second cavity and the outside, two ends of the cylinder body are respectively provided with a pump shell, a liquid inlet and a liquid outlet are arranged on the pump shell, and one end of each of the liquid inlet and the liquid outlet is communicated with the inside of the cylinder body. When the injection device is used, the first channel and the second channel are connected with the air pump through a reversing valve, then the liquid inlet is connected with a liquid tank to be injected, and the liquid outlet is connected with a container to be filled with liquid.
Description
Technical Field
The utility model relates to a two effect pneumatic syringe pumps of no cylinder.
Background
The conventional pneumatic injection pump comprises an air cylinder and a grouting cylinder, and a typical structure is shown in figure 1, and comprises the air cylinder, the injection cylinder and a two-position four-way reversing valve, wherein a piston rod of the air cylinder extends into the injection cylinder and is connected with a piston in the injection cylinder, and an air source is connected with the air cylinder after passing through the two-position four-way valve.
The injection pump and the equipment all need a cylinder, and the volume of the cylinder is far larger than that of the injection cylinder, so that the volume of the product is greatly increased, and therefore, the improvement is needed.
Disclosure of Invention
The utility model provides a to prior art not enough, the utility model provides a pneumatic syringe pump of no cylinder two effects, the volume reduces greatly, cost greatly reduced.
The utility model provides a technical scheme that its technical problem adopted is: there is not two effect start-up syringe pumps of cylinder, including the cylinder body, the intermediate position of cylinder body is provided with the baffle, the baffle will the cylinder body divide into first cavity and the second cavity that do not communicate with each other, sliding connection has the piston rod on the baffle, the both ends of piston rod respectively are provided with a piston, be provided with first passageway and second passageway on the baffle, first passageway intercommunication first cavity and external world, second passageway intercommunication second cavity and external world, the both ends of cylinder body respectively set up a pump case, be provided with inlet and liquid outlet on the pump case, the inlet with the one end of liquid outlet all communicates with each other with the cylinder body is inside. When the injection device is used, the first channel and the second channel are connected with the air pump through a reversing valve, then the liquid inlet is connected with a liquid tank to be injected, and the liquid outlet is connected with a container to be filled with liquid. The injection pump with the structure has the advantages that the first channel is inflated, the piston in the first channel moves towards the end of the cylinder body to drive liquid in the first channel to flow out from the liquid outlet, meanwhile, the piston in the second channel moves towards the partition plate to discharge air in the second channel towards one side of the partition plate, and meanwhile, the liquid is sucked from the liquid suction port.
In the above technical scheme, preferably, the pump case is further provided with a first through hole communicated with the liquid inlet, a first valve rod is arranged in the first through hole, the first through hole is communicated with the control air flow, and when the first through hole is ventilated, the first valve rod is inserted into the liquid inlet to block the liquid inlet.
In the above technical solution, preferably, the pump case is further provided with a second through hole communicated with the liquid outlet, the second through hole is internally provided with a second valve rod, the second through hole is communicated with the control air flow, and when the second through hole is ventilated, the second valve rod is inserted into the liquid outlet to block the liquid outlet.
The utility model has the advantages that: when the injection device is used, the first channel and the second channel are connected with the air pump through a reversing valve, then the liquid inlet is connected with a liquid tank to be injected, and the liquid outlet is connected with a container to be filled with liquid. The injection pump with the structure has the advantages that the first channel is inflated, the piston in the first channel moves towards the end of the cylinder body to drive liquid in the first channel to flow out from the liquid outlet, meanwhile, the piston in the second channel moves towards the partition plate to discharge air in the second channel towards one side of the partition plate, and meanwhile, the liquid is sucked from the liquid suction port.
Drawings
FIG. 1 is a schematic view of a prior art pneumatic syringe pump.
Fig. 2 is a schematic diagram of the present invention.
Fig. 3 is a schematic view of the present invention in use.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 2, the double-acting starting injection pump without the air cylinder comprises a cylinder body 1, wherein a partition plate 2 is arranged in the middle of the cylinder body 1, and the partition plate 2 divides the cylinder body into a first chamber 21 and a second chamber 22 which are not communicated with each other.
The baffle 2 is connected with a piston rod 23 in a sliding mode, two ends of the piston rod 23 are respectively provided with a piston 23, the baffle 2 is provided with a first channel 2a and a second channel 2b, the first channel 2a is communicated with the first cavity 21 and the outside, and the second channel 2b is communicated with the second cavity 22 and the outside.
Two ends of the cylinder body 1 are respectively provided with a pump shell 3, the pump shell 3 is provided with a liquid inlet 31 and a liquid outlet 32, and one ends of the liquid inlet 31 and the liquid outlet 32 are communicated with the inside of the cylinder body 1.
The pump shell 3 is further provided with a first through hole 41 communicated with the liquid inlet 31, a first valve rod 411 is arranged in the first through hole 41, the first through hole 41 is communicated with control air flow, and when the first through hole 41 is ventilated, the first valve rod 411 is inserted into the liquid inlet 31 to block the liquid inlet.
The pump case 3 is further provided with a second through hole 42 communicated with the liquid outlet 32, a second valve rod 421 is arranged in the second through hole 42, the second through hole 42 is communicated with control air, and when air is introduced into the second through hole 42, the second valve rod 421 is inserted into the liquid outlet 32 to block the liquid outlet 32.
Referring to fig. 3, in use, the first passage 2a and the second passage 2b are connected to an air pump 6 via a reversing valve 5, and then a liquid outlet 31 is connected to a container tank 7 in which a liquid to be injected is located, and a liquid outlet 32 is connected to a container in which the liquid is to be discharged. The first through hole 41 and the second through hole 42 are respectively connected with an electromagnetic valve 4a and then connected with the inflator 6.
When the injection pump is used, air is firstly inflated into the first channel, the piston in the first channel moves towards the end part of the cylinder body to drive liquid in the first channel to flow out from the liquid outlet, meanwhile, the piston in the second channel moves towards the partition plate to discharge air from the second channel towards one side of the partition plate, and simultaneously, the liquid is sucked from the liquid suction port.
Claims (3)
1. Pneumatic syringe pump of no cylinder double-action, including the cylinder body, its characterized in that: the middle position of cylinder body is provided with the baffle, the baffle will the cylinder body divide into first cavity and the second cavity that each other does not communicate with each other, sliding connection has the piston rod on the baffle, the both ends of piston rod respectively are provided with a piston, be provided with first passageway and second passageway on the baffle, first passageway intercommunication first cavity and external, second passageway intercommunication second cavity and external, the both ends of cylinder body respectively set up a pump case, be provided with inlet and liquid outlet on the pump case, the inlet with the one end of liquid outlet all communicates with each other with the cylinder body is inside.
2. The cylinder-less double-acting pneumatic injection pump of claim 1, wherein: the pump shell is further provided with a first through hole communicated with the liquid inlet, a first valve rod is arranged in the first through hole and communicated with control air flow, and when the first through hole is ventilated, the first valve rod is inserted into the liquid inlet to block the liquid inlet.
3. The cylinder-less double-acting pneumatic injection pump of claim 1, wherein: the pump shell is further provided with a second through hole communicated with the liquid outlet, a second valve rod is arranged in the second through hole, the second through hole is communicated with control air flow, and when air is introduced into the second through hole, the second valve rod is inserted into the liquid outlet to block the liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922144000.XU CN211448917U (en) | 2019-12-04 | 2019-12-04 | Cylinder-free double-acting pneumatic injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922144000.XU CN211448917U (en) | 2019-12-04 | 2019-12-04 | Cylinder-free double-acting pneumatic injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211448917U true CN211448917U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922144000.XU Active CN211448917U (en) | 2019-12-04 | 2019-12-04 | Cylinder-free double-acting pneumatic injection pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN211448917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417823A (en) * | 2021-07-30 | 2021-09-21 | 高砂电气(苏州)有限公司 | Single-cylinder type continuous discharge injection pump |
-
2019
- 2019-12-04 CN CN201922144000.XU patent/CN211448917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417823A (en) * | 2021-07-30 | 2021-09-21 | 高砂电气(苏州)有限公司 | Single-cylinder type continuous discharge injection pump |
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