CN112250022A - Oil discharge recovery device for injector - Google Patents
Oil discharge recovery device for injector Download PDFInfo
- Publication number
- CN112250022A CN112250022A CN202010897640.2A CN202010897640A CN112250022A CN 112250022 A CN112250022 A CN 112250022A CN 202010897640 A CN202010897640 A CN 202010897640A CN 112250022 A CN112250022 A CN 112250022A
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- oil
- buffer tank
- injector
- controller
- insertion hole
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- 238000011084 recovery Methods 0.000 title claims abstract description 28
- 238000003780 insertion Methods 0.000 claims abstract description 43
- 230000037431 insertion Effects 0.000 claims abstract description 43
- 239000002699 waste material Substances 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
- B67D7/0238—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants utilising compressed air or other gas acting directly or indirectly on liquids in storage containers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention relates to an oil discharge recovery device for an injector, which comprises: a support member having at least one insertion hole formed therein; a negative pressure piece; the negative pressure piece is connected with the storage assembly, and the front end of the injector extends into the insertion hole and then is communicated with the storage assembly. The above-mentioned scheme that this application provided, through the negative pressure casting die to the storage subassembly evacuation, can be so that the waste oil in the syringe flows into the storage subassembly in the syringe automatically under the negative pressure effect in, the integrated device need not artifical manual waste oil in with the syringe and slowly extrudes, only need put the syringe in the plug-in hole, just can realize the automatic waste oil of retrieving of integration, the time of waste oil recovery has not only been improved, operating personnel's work burden has been alleviateed, and the efficiency of whole recovery has obviously been improved moreover.
Description
Technical Field
The invention relates to the technical field of waste oil recovery devices, in particular to an oil discharge recovery device for an injector.
Background
At present, the waste oil of the insulating oil of the high-voltage equipment is treated by the traditional manual operation, namely, an operator uses a syringe to extract the oil and then seals the oil by a rubber cap, and the residual insulating oil is used as the waste oil to be injected into a waste oil barrel after the oil is sent to a test.
However, in the process, the rubber cap needs to be taken away manually, the waste oil needs to be slowly injected into the waste oil barrel by using the injector, and the used rubber cap and the used injector are lack of uniform recovery management, so that secondary pollution is easily caused, the workload of operators is increased, and the time is consumed. If the operation scene waste oil is more, when syringe quantity is numerous, more need the manual work to carry out waste oil treatment one by one, it is very low to be efficient.
Disclosure of Invention
In view of the above, it is necessary to provide an injector oil drain recovery device, which solves the problem of low efficiency of recovering waste oil by using the existing injector.
The invention provides an oil discharge recovery device for an injector, which comprises:
a support member provided with at least one insertion hole;
a negative pressure piece;
the negative pressing piece is connected with the storage assembly, and the front end of the syringe extends into the insertion hole and then is communicated with the storage assembly.
Above-mentioned syringe oil extraction recovery unit, through the negative pressure casting die to storage assembly evacuation, can be so that the waste oil in the syringe automatically flows into the storage assembly in the syringe under the negative pressure effect in, the whole device need not artifical manual waste oil in with the syringe and slowly extrudes, only need put the syringe in the plug-in hole, just can realize the automatic waste oil of retrieving of integration, the time of waste oil recovery has not only been improved, operating personnel's work burden has been alleviateed, and the efficiency of whole recovery has obviously been improved moreover.
In one embodiment, the support member includes a case having a plurality of insertion holes formed on an upper surface thereof.
In one embodiment, the storage assembly comprises a buffer tank, the buffer tank is arranged inside the box body, the front end of the injector extends into the insertion hole and then is communicated with the buffer tank, and the negative pressure piece is connected with an air inlet on one end, close to the injector, of the buffer tank through an air pipe.
In one embodiment, the storage assembly further comprises a solenoid valve disposed in the insertion hole, and the front end of the syringe extends into the insertion hole and then is communicated with the buffer tank through the solenoid valve.
In one embodiment, the storage assembly further comprises a sealing ring, the sealing ring is arranged in the insertion hole, and the front end of the syringe extends into the insertion hole and penetrates through the sealing ring to be connected with the solenoid valve.
In one embodiment, the device further comprises a control assembly, wherein the control assembly comprises a controller and a photoelectric sensor, the photoelectric sensor is arranged in the insertion hole, and the controller is arranged on the outer side of the box body;
when the front end of the injector extends into the insertion hole and triggers the photoelectric sensor, the photoelectric sensor transmits a signal to the controller, the controller controls the negative pressure piece to start, and when the pressure in the buffer tank reaches a preset value, the controller controls the electromagnetic valve to open.
In one embodiment, the control assembly further comprises a pressure sensor for detecting the pressure in the buffer tank, when the controller controls the negative pressure piece to start, the pressure sensor transmits the pressure value in the buffer tank to a display screen on the controller, when the pressure in the buffer tank reaches a preset value, the controller controls the electromagnetic valve to open, and meanwhile the controller controls the negative pressure piece to stop moving.
In one embodiment, the storage assembly further comprises an oil pump and a waste oil tank, the oil pump is arranged in the box body, the waste oil tank is arranged outside the box body, an oil inlet of the oil pump is connected with the buffer tank through an oil pipe, and an oil outlet of the oil pump is connected with the waste oil tank through an oil pipe.
In one embodiment, the control assembly further comprises an oil amount detector for detecting the amount of oil in the buffer tank, when the amount of oil in the buffer tank reaches a preset value, the oil amount detector transmits a signal to the controller, and the controller controls the oil pump to start.
In one embodiment, the support member further includes a collecting groove, the collecting groove is disposed on the box body, and a bayonet is disposed on the collecting groove.
Drawings
Fig. 1 is a schematic structural diagram of an injector oil drain recovery apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of the internal connection structure of FIG. 1;
FIG. 3 is a schematic diagram of the oil connections of FIG. 1;
fig. 4 is a schematic structural view of the outer side of the box body in fig. 1.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
As shown in fig. 1, in an embodiment of the present invention, there is provided an injector oil drain recovery apparatus, including: the vacuum injector comprises a support, a negative pressure part 20 and a storage assembly, wherein the negative pressure part 20 is a vacuum pump, at least one insertion hole 101 is formed in the support, the negative pressure part 20 is arranged on the storage assembly, and the front end of the injector 70 extends into the insertion hole 101 and then is communicated with the storage assembly.
Adopt above-mentioned technical scheme, through the negative pressure casting die to the storage assembly evacuation, can be so that the waste oil in the syringe automatically flow into the storage assembly in the syringe under the negative pressure effect in, the integrated device need not artifical manual waste oil in the syringe and slowly extrudes, only need put the syringe in the plug-in hole, just can realize the automatic waste oil of retrieving of integration, not only improved the time that waste oil was retrieved, alleviateed operating personnel's work burden, obviously improved the efficiency of whole recovery moreover.
In some embodiments, as shown in fig. 1, the support member of the present application includes a case 10, and a plurality of insertion holes 101 are provided on an upper surface of the case 10.
Specifically, nine insertion holes 101 are formed on the upper surface of the housing 10, and a chamfer is formed inside each insertion hole 101 to prevent the syringe 70 from being erroneously placed after being inserted into the insertion hole 101. It should be noted that the number of the insertion holes 101 on the upper surface of the box 10 is not particularly limited, and may be designed according to the actual product requirement.
In some embodiments, as shown in fig. 1 in combination with fig. 3, the storage assembly of the present application includes a buffer tank 40, the buffer tank 40 is disposed inside the casing 10, the front end of the syringe 70 extends into the insertion hole 101 and then communicates with the buffer tank 40, and the negative pressure member 20 is connected to an air inlet on one end of the buffer tank 40 near the syringe 70 through an air pipe.
Specifically, as shown in fig. 3, the buffer tank 40 and the negative pressure part 20 are both disposed inside the box body 10, the buffer tank 40 is of a cylindrical structure, an oil inlet and an air inlet (not shown) are disposed on the buffer tank 40, wherein the front end of the injector 70 extends into the insertion hole 101 and then is communicated with the oil inlet on the buffer tank 40 through an oil pipe, and the negative pressure part 20 is connected with the air inlet on the buffer tank 40 through an air pipe.
In some embodiments, as shown in fig. 2, in order to facilitate the control of the communication or closing of the oil line between the injector 70 and the oil inlet on the buffer tank 40, the storage assembly in the present application further includes a solenoid valve 80, the solenoid valve 80 is disposed in the insertion hole 101, and the front end of the injector 70 extends into the insertion hole 101 and then communicates with the buffer tank 40 through the solenoid valve 80. When the communication of the oil pipes between the oil inlets on the injector 70 and the buffer tank 40 needs to be controlled, only the solenoid valve 80 needs to be opened, and when the closing of the oil pipes between the oil inlets on the injector 70 and the buffer tank 40 needs to be controlled, only the solenoid valve 80 needs to be closed.
It should be noted that the structure for controlling the communication or closing of the oil pipe between the injector and the oil inlet on the buffer tank through the solenoid valve in the embodiment of the present application is only an mutexample, and in other alternative solutions, other structures may be adopted, for mutexample, an electronic drain valve of type OPT-a/B is provided on the oil pipe between the injector and the oil inlet on the buffer tank. The structure that how to control the intercommunication of oil pipe between the oil feed opening on syringe and the buffer tank or close is not do special restriction to this application, as long as above-mentioned structure can realize the purpose alright of this application.
In some embodiments, as shown in fig. 2, in order to avoid air leakage when the front end of the syringe 70 is connected to the solenoid valve 80 after reaching the insertion hole 101, the storage assembly of the present application further includes a sealing ring 102, the sealing ring 102 is disposed in the insertion hole 101, and the front end of the syringe 70 extends into the insertion hole 101 and passes through the sealing ring 102 to be connected to the solenoid valve 80.
In some embodiments, in order to facilitate the control of the opening of the negative pressure element 20 and the solenoid valve 80, as shown in fig. 3 and 4, the present application further comprises a control assembly, which in turn comprises a controller 90 and a photoelectric sensor, wherein the photoelectric sensor is disposed in the insertion hole 101, and the controller 90 is disposed outside the casing 10; when the front end of the syringe 70 extends into the insertion hole 101 and triggers the photoelectric sensor, the photoelectric sensor transmits a signal to the controller 90, the controller 90 controls the negative pressure member 20 to be activated, and when the pressure in the buffer tank 40 reaches a preset value, the controller 90 controls the electromagnetic valve 80 to be opened.
Specifically, the photoelectric sensor may be a SICK G2S type photoelectric sensor, the controller 90 may be a PLC controller, when the front end of the syringe 70 extends into the insertion hole 101, the photoelectric sensor is triggered at the same time, the photoelectric sensor transmits a signal to the controller 90, the controller 90 controls the negative pressure part 20 to start, that is, the negative pressure part 20 vacuumizes the buffer tank 40 through the air pipe, when the pressure in the buffer tank 40 reaches a preset value, the controller 90 controls the electromagnetic valve 80 to open, and at this time, the waste oil in the syringe 70 flows into the buffer tank 40 under the negative pressure effect in the buffer tank 40. It should be noted that the types of the photoelectric sensor and the controller in the embodiment of the present application are only examples, and may be specifically selected according to the needs of an actual product.
In some embodiments, to further facilitate the detection of the pressure in the buffer tank 40, as shown in fig. 3, the control assembly of the present application further includes a pressure sensor 401 for detecting the pressure in the buffer tank 40, wherein when the controller 90 controls the negative pressure element 20 to start, the pressure sensor 401 transmits the pressure value in the buffer tank 40 to a display screen on the controller 90, and when the pressure in the buffer tank 40 reaches a preset value, the controller 90 controls the solenoid valve 80 to open, and the controller 90 controls the negative pressure element 20 to stop moving.
Specifically, the pressure sensor 401 may be a pressure sensor of PT124G-111, the pressure sensor 401 is disposed on the buffer tank 40 and is used for detecting a pressure value in the buffer tank 40, when the controller 90 controls the negative pressure member 20 to start, that is, the negative pressure member 20 vacuumizes the buffer tank 40 through the air pipe, the pressure sensor 401 transmits a detected pressure value in the buffer tank 40 to a display screen on the controller 90, when the pressure in the buffer tank 40 reaches a preset value, the controller 90 controls the electromagnetic valve 80 to open, and at the same time, the controller 90 controls the negative pressure member 20 to stop moving, at which time, the waste oil in the syringe 70 flows into the buffer tank 40 under the action of the negative pressure in the buffer tank 40. It should be noted that the types of the pressure sensors in the embodiments of the present application are merely examples, and may be specifically selected according to the needs of actual products.
In some embodiments, as shown in fig. 1 and 3, the storage assembly in the present application further includes an oil pump 30 and a waste oil tank 50, wherein the oil pump 30 is disposed in the box body 10, the waste oil tank 50 is disposed outside the box body 10, an oil inlet of the oil pump 30 is connected to the buffer tank 40 through an oil pipe, and an oil outlet of the oil pump 30 is connected to the waste oil tank 50 through an oil pipe.
Specifically, an oil outlet (not indicated in the figure) is further arranged on the buffer tank 40 in the application, an oil inlet on the oil pump 30 is connected with the oil outlet on the buffer tank 40 through an oil pipe, the oil outlet on the oil pump 30 is connected with the waste oil tank 50 through an oil pipe, and when the waste oil amount in the buffer tank 40 reaches a preset value, the oil pump 30 is started, so that the waste oil in the buffer tank 40 is conveniently transferred into the waste oil tank 50.
In some embodiments, in order to further facilitate the control of the opening or closing of the oil pump 30, the control assembly of the present application further includes an oil amount detector (not shown) for detecting the amount of oil in the buffer tank 40, and when the amount of oil in the buffer tank 40 reaches a preset value, the oil amount detector transmits a signal to the controller 90, and the controller 90 controls the oil pump 30 to start.
Specifically, the oil amount detector may select an oil amount sensor of a model 0L0012A-601, the oil amount detector is disposed in the buffer tank 40, when the oil amount detector detects that the oil amount in the buffer tank 40 reaches a preset value, the oil amount detector transmits a signal to the controller 90, and the controller 90 controls the oil pump 30 to start, so that the waste oil in the buffer tank 40 is transferred to the waste oil tank 50.
In some embodiments, since the syringe 70 is sleeved with a rubber cap, before the front end of the syringe 70 is inserted into the insertion hole 101, the rubber cap on the syringe 70 needs to be removed first, so as to avoid secondary pollution caused by manually removing the rubber cap, and the removed rubber cap and the used syringe 70 lack unified recovery management, as shown in fig. 1, the support member in this application further includes a collecting groove 60, the collecting groove 60 is disposed on the box body 10, and the collecting groove 60 is provided with a bayonet 601.
When the front end of the syringe 70 is inserted into the insertion hole 101, the front end of the syringe 70 is inserted into the bayonet 601, and then the syringe 70 is pulled, so that the rubber cap on the syringe 70 is removed, the rubber cap is just collected in the collection tank 60, and when the waste oil in the syringe 70 is completely discharged, the syringe 70 is inserted into the collection tank 60.
When the invention is used:
firstly, a rubber cap on a syringe 70 is removed from a bayonet 601 of the syringe 70 after a test is finished, then the syringe 70 extends into any insertion hole 101 on a box body 10, when the front end of the syringe 70 is matched with a sealing ring in the insertion hole 101 and touches a photoelectric sensor, the photoelectric sensor transmits a signal to a controller 90, the controller 90 controls a negative pressure part 20 to be started, the negative pressure part 20 vacuumizes a buffer tank 40 through an air pipe, when the pressure in the buffer tank 40 reaches a preset value, the controller 90 controls an electromagnetic valve 80 to be opened, waste oil in the syringe 70 flows into a flushing tank 40 after passing through the electromagnetic valve 80 under the action of negative pressure, after the waste oil in the syringe 70 is emptied, the electromagnetic valve 80 is closed, when the oil amount in the buffer tank 40 reaches the preset value, the oil amount detector transmits the signal to the controller 90, and the controller 90 controls an oil pump 30 to be started, so that the waste oil in the buffer tank 40 sequentially passes through an oil outlet on the buffer tank 40, The oil inlet of the oil pump 30 and the oil outlet of the oil pump 30 flow into the waste oil tank 50, and the whole recovery process is finally completed.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An injector oil drain recovery device, comprising:
a support provided with at least one insertion hole (101);
a negative pressure member (20);
and the negative pressure piece (20) is connected with the storage assembly, and the front end of the syringe (70) extends into the insertion hole (101) and then is communicated with the storage assembly.
2. An oil drain recovery device for an injector according to claim 1, characterized in that said support comprises a box (10), said box (10) being provided on its upper surface with a plurality of insertion holes (101).
3. The oil drain recovery device for the injector of claim 2, wherein the storage assembly comprises a buffer tank (40), the buffer tank (40) is arranged inside the box body (10), the front end of the injector (70) extends into the insertion hole (101) and then is communicated with the buffer tank (40), and the negative pressure piece (20) is connected with an air inlet on one end of the buffer tank (40) close to the injector (70) through an air pipe.
4. The oil drain recovery device for the injector of claim 3, wherein the storage assembly further comprises a solenoid valve (80), the solenoid valve (80) is disposed in the insertion hole (101), and the front end of the injector (70) extends into the insertion hole (101) and then is communicated with the buffer tank (40) through the solenoid valve (80).
5. The oil drain recovery device for the injector of claim 4, wherein the storage assembly further comprises a sealing ring (102), the sealing ring (102) is disposed in the insertion hole (101), and the front end of the injector (70) extends into the insertion hole (101) and passes through the sealing ring (102) to be connected with the solenoid valve (80).
6. The syringe oil drain recovery device according to claim 4, further comprising a control assembly including a controller (90) and a photoelectric sensor, the photoelectric sensor being disposed in the insertion hole (101), the controller (90) being disposed outside the case (10);
when the front end of the injector (70) extends into the insertion hole (101) and triggers the photoelectric sensor, the photoelectric sensor transmits a signal to the controller (90), the controller (90) controls the negative pressure piece (20) to be started, and when the pressure in the buffer tank (40) reaches a preset value, the controller (90) controls the electromagnetic valve (80) to be opened.
7. The oil recovery device of the injector of claim 6, characterized in that the control assembly further comprises a pressure sensor (401) for detecting the pressure in the buffer tank (40), when the controller (90) controls the negative pressure member (20) to start, the pressure sensor (401) transmits the pressure value in the buffer tank (40) to a display screen on the controller (90), when the pressure in the buffer tank (40) reaches a preset value, the controller (90) controls the electromagnetic valve (80) to open, and the controller (90) controls the negative pressure member (20) to stop moving.
8. The syringe oil discharge recovery device according to claim 6, wherein the storage assembly further comprises an oil pump (30) and a waste oil tank (50), the oil pump (30) is arranged in the box body (10), the waste oil tank (50) is arranged outside the box body (10), an oil inlet of the oil pump (30) is connected with the buffer tank (40) through an oil pipe, and an oil outlet of the oil pump (30) is connected with the waste oil tank (50) through an oil pipe.
9. The syringe drain recovery device according to claim 8, wherein the control assembly further comprises an oil amount detector for detecting an amount of oil in the buffer tank (40), the oil amount detector transmitting a signal to the controller (90) when the amount of oil in the buffer tank (40) reaches a preset value, the controller (90) controlling the oil pump (30) to be activated.
10. Injector oil drain recovery device according to any of claims 2-9, characterized in that the support further comprises a collecting trough (60), the collecting trough (60) being arranged on the tank (10), and the collecting trough (60) being provided with a bayonet (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010897640.2A CN112250022A (en) | 2020-08-31 | 2020-08-31 | Oil discharge recovery device for injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010897640.2A CN112250022A (en) | 2020-08-31 | 2020-08-31 | Oil discharge recovery device for injector |
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| CN112250022A true CN112250022A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010897640.2A Pending CN112250022A (en) | 2020-08-31 | 2020-08-31 | Oil discharge recovery device for injector |
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| CN (1) | CN112250022A (en) |
Cited By (1)
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| CN114099838A (en) * | 2021-11-04 | 2022-03-01 | 李志军 | Syringe storage device with spiral pressure regulating function |
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Application publication date: 20210122 |