CN218833257U - Portable continuous positive and negative pressure screw joint injector - Google Patents
Portable continuous positive and negative pressure screw joint injector Download PDFInfo
- Publication number
- CN218833257U CN218833257U CN202221900747.9U CN202221900747U CN218833257U CN 218833257 U CN218833257 U CN 218833257U CN 202221900747 U CN202221900747 U CN 202221900747U CN 218833257 U CN218833257 U CN 218833257U
- Authority
- CN
- China
- Prior art keywords
- injector
- channel
- negative pressure
- core rod
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a portable continuous positive and negative pressure screw joint injector, which comprises a main body, a three-way plug valve and a limiting device; the main body comprises an injector outer sleeve, a core rod and a rubber plug, and the limiting device is arranged at the rear end of the injector outer sleeve and sleeved on the core rod; the limiting device limits the core bar; one end of the core bar is arranged in the outer sleeve of the injector, and the rubber plug is arranged at the front end of the core bar and in the outer sleeve of the injector; one end of the three-way plug valve is connected with the injector jacket, and the other end of the three-way plug valve is sleeved with a screw seat; when the notch is arranged in the cross through hole, the core rod is rotated to enable the notch and the cross through hole to be staggered, so that the position of the core rod is limited, and external liquid flows into the injector due to pressure intensity; the three-way plug valve can be used for sequentially pumping blood and conveying medicines to a patient, the injection needle is not required to be pulled out of a human body, and the valve core is driven to rotate by rotating the position of the handle to open or close the channel; the operation procedures are reduced, and the treatment time is saved.
Description
Technical Field
The utility model relates to the technical field of syringes, especially, relate to a portable continuation positive negative pressure screw joint syringe.
Background
The injector is a common medical appliance, and the principle of the injector is put forward by kathler of Italian people as early as the 15 th century; the syringe is mainly used for injecting liquid medicine or extracting liquid, and can also be used for injecting medical equipment, containers and scientific instruments such as a plurality of chromatography through a rubber diaphragm; in some existing operation processes, medical care personnel need to extract certain liquid from a patient body, the required specific syringe has a large syringe tube diameter and a small needle head, and long time is needed for extracting certain liquid; medical personnel need to control the core rod for a long time; the whole process is troublesome, and a great deal of energy and physical strength of medical staff are consumed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a portable continuous positive and negative pressure screw joint injector.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a portable continuous positive and negative pressure screw joint injector comprises a main body, a three-way plug valve and a limiting device; the main body comprises an injector outer sleeve, a core rod and a rubber plug, and the limiting device is arranged at the rear end of the injector outer sleeve and sleeved on the core rod; the limiting device limits the core rod; one end of the core bar is arranged in the injector outer sleeve, and the rubber plug is arranged at the front end of the core bar and in the injector outer sleeve; one end of the three-way plug valve is connected with the outer sleeve of the injector, and the other end of the three-way plug valve is sleeved with a screw seat.
Preferably, the limiting device comprises a limiting plate, and a cross-shaped through hole is formed in the limiting plate; four blades are uniformly arranged on the core bar in a surrounding manner, and a plurality of gaps are formed in each blade at equal intervals; the four blades pass through the cross through hole.
Preferably, the syringe overcoat is including being located the baffle of rearmost end, be provided with two corresponding first through-holes in position on the baffle, still be provided with the corresponding second through-hole in two positions on the limiting plate, first through-hole with the second through-hole position is corresponding.
Preferably, the limiting plate penetrates through the first through hole and the second through hole through bolts and is fixed on the baffle plate in a matched mode with nuts.
Preferably, the three-way plug valve comprises a handle, a valve core and a valve body, wherein the handle is arranged on the valve core, the valve core is arranged in the valve body, three channels, namely a first channel, a second channel and a third channel, are arranged on the valve body, the first channel and the second channel are positioned on the same horizontal line, and the third channel is perpendicular to the first channel and the second channel; the screw socket is sleeved on the port of the second channel and limited on the second channel.
Preferably, the three-way plug valve and the injector jacket are integrally formed.
Preferably, the handle is provided with arrow protrusions corresponding to the three channels.
Preferably, the screw seat is a tubular body, and the inner wall of the screw seat is provided with threads in threaded connection with the injection needle.
Preferably, the rear end of the core rod is a push-pull part, and the push-pull part is a push-pull plate.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model relates to a portable continuous positive and negative pressure screw joint injector, wherein four blades pass through a cross-shaped through hole, and a core rod passes through a limiting plate; when the notch is arranged in the cross through hole, the notch and the cross through hole are staggered by rotating the core rod, so that the position of the core rod is limited; the operator does not need to control the core bar all the time, so that the operator is liberated, and the operation is more convenient; the limiting plate is fixed on the baffle through the matching of the bolt and the nut; the limiting plate can be fixed on the bolt through the matching of the plurality of nuts and the bolt so as to adjust the position of the limiting plate and facilitate the limiting of the core rod; the core rod is pushed and pulled through the push-pull plate so as to suck or output liquid into or out of the injector jacket; the valve core rotates along with the handle to open or close the channel, the flow direction of the pipeline is not required to be switched by aiming at the angle intentionally, and the position of the handle is rotated, so that the valve is convenient, simple and convenient; the three-way plug valve can be used for sequentially pumping blood and conveying medicine to a patient, the injection needle is not required to be pulled out of a human body, and the passage is controlled only by rotating the position of the handle; the operation procedures are reduced, and the treatment time is saved; the direction of flow of the connecting channel is pointed by the arrow projection, which is intended to facilitate the identification of the direction of rotation of the connecting channel and the direction of flow of the fluid in the connecting channel.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a sectional view of the main body according to the present invention;
FIG. 3 is a cross-sectional view of the three-way stopcock of the present invention;
fig. 4 is a schematic structural view of the limiting device of the present invention.
Illustration of the drawings:
1. a main body, a three-way plug valve 2,
3. a limiting device, 4, a screw seat,
11. the outer sleeve of the injector, 12, the core bar,
13. a rubber plug, 14 and a baffle plate,
21. a handle, 22 and a valve core,
23. a valve body 31, a limit plate,
32. a cross-shaped through hole 33, a second through hole,
121. the number of the blades, 122, the notches,
123. a push-pull part 141, a first through hole,
211. the arrow-head protrusion, 231, the first channel,
232. a second channel, 233, a third channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Referring to fig. 1 to 4, a portable continuous positive and negative pressure screw joint injector comprises a main body 1, a three-way plug valve 2 and a limiting device 3; the main body 1 comprises an injector outer sleeve 11, a core rod 12 and a rubber plug 13, and the limiting device 3 is arranged at the rear end of the injector outer sleeve 11 and sleeved on the core rod 12; the limiting device 3 limits the core rod 12; one end of the core bar 12 is arranged in the injector outer sleeve 11, and the rubber plug 13 is arranged at the front end of the core bar 12 and in the injector outer sleeve 11; one end of the three-way plug valve 2 is connected with the injector jacket 11, and the other end of the three-way plug valve 2 is sleeved with a screw seat 4.
The limiting device 3 comprises a limiting plate 31, and a cross through hole 32 is formed in the limiting plate 31; four blades 121 are uniformly arranged on the core rod 12 in a surrounding manner, and a plurality of gaps 122 are arranged on each blade 121 at equal intervals; the four blades 121 pass through the cross through hole 32, and the core rod 12 passes through the limiting plate 31; when liquid is extracted, when the gap 122 is arranged in the cross through hole 32, the position of the core rod 12 is limited by rotating the core rod 12 to ensure that the gap 122 is staggered with the cross through hole 32; external liquid flows into the injector due to pressure, an operator does not need to control the core rod 12 all the time, the operator is liberated, and the operation is more convenient.
The injector outer sleeve 11 comprises a baffle plate 14 positioned at the rearmost end, two first through holes 141 corresponding to each other in position are formed in the baffle plate 14, two second through holes 33 corresponding to each other in position are formed in the limiting plate 31, and the first through holes 141 correspond to the second through holes 33 in position; the limiting plate 31 passes through the first through hole 141 and the second through hole 33 through bolts, and is fixed on the baffle plate 14 in a matching manner with nuts; the limiting plate 31 is fixed on the baffle 14 through the matching of a bolt and a nut; the limiting plate 31 can also be fixed on the bolt through the matching of a plurality of nuts and the bolt so as to adjust the position of the limiting plate 31 and facilitate the limiting of the core rod 12.
The three-way plug valve 2 comprises a handle 21, a valve core 22 and a valve body 23, wherein the handle 21 is arranged on the valve core 22, the valve core 22 is arranged in the valve body 23, three channels, namely a first channel 231, a second channel 232 and a third channel 233, are arranged on the valve body 23, the first channel 231 and the second channel 232 are positioned on the same horizontal line, and the third channel 233 is arranged perpendicular to the first channel 231 and the second channel 232; the screw seat 4 is sleeved on the port of the second channel 232 and limited on the second channel 232; the three-way plug valve 2 and the injector jacket 11 are integrally formed; the valve core 22 rotates along with the handle 21 to open or close the channel, the flow direction of the pipeline is switched without aligning the angle intentionally, and the position of the handle 21 is rotated, so that the valve is convenient, simple and convenient; the three-way plug valve 2 can be used for sequentially pumping blood and conveying medicines to a patient, the injection needle is not required to be pulled out of a human body, and the position of the handle 21 is only required to be rotated to control the channel; the operation procedures are reduced, and the treatment time is saved.
The handle 21 is provided with arrow protrusions 211 corresponding to the three channels, and the arrow protrusions 211 point to the flowing direction of the connecting channel, so as to facilitate people to distinguish the rotating direction of the connecting channel and the flowing direction of the fluid in the connecting channel.
The screw seat 4 is a tubular body, and the inner wall of the screw seat 4 is provided with a thread 41 which is in threaded connection with the injection needle; the injection needle is rotationally connected with the thread 41 on the inner wall of the screw seat, and the injection needle is limited on the screw seat 4.
The rear end of the core rod 12 is a push-pull part 123, and the push-pull part 123 is a push-pull plate; the push-pull portion 123 pushes and pulls the plunger rod 12 to suck or discharge the liquid into or from the syringe housing 11.
The utility model discloses a theory of operation: when liquid is extracted, the core rod 12 is pushed and pulled through the push-pull part 123, and when the gap 122 is arranged in the cross through hole 32, the gap 122 and the cross through hole 32 are staggered by rotating the core rod 12, so that the position of the core rod 12 is limited; therefore, the external liquid flows into the injector due to the pressure intensity, the operator does not need to control the core rod 12 all the time, the operator is liberated, and the operation is more convenient; the valve core 22 rotates along with the handle 21 to open or close the channel, the flow direction of the pipeline is switched without aligning the angle intentionally, and the position of the handle 21 is rotated, so that the valve is convenient, simple and convenient; the three-way plug valve 2 can be used for sequentially pumping blood and conveying medicine to a patient, the injection needle is not required to be pulled out of a human body, and the passage is controlled only by rotating the position of the handle 21; the operation procedures are reduced, and the treatment time is saved.
Above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.
Claims (9)
1. A portable continuous positive and negative pressure screw joint injector is characterized by comprising a main body, a three-way plug valve and a limiting device; the main body comprises an injector outer sleeve, a core rod and a rubber plug, and the limiting device is arranged at the rear end of the injector outer sleeve and sleeved on the core rod; the limiting device limits the core rod; one end of the core rod is arranged in the injector outer sleeve, and the rubber plug is arranged at the front end of the core rod and in the injector outer sleeve; one end of the three-way plug valve is connected with the outer sleeve of the injector, and the other end of the three-way plug valve is sleeved with a screw seat.
2. The portable continuous positive and negative pressure threaded connector injector of claim 1, wherein the limiting device comprises a limiting plate, and the limiting plate is provided with a cross through hole; four blades are uniformly arranged on the core bar in a surrounding manner, and a plurality of gaps are formed in each blade at equal intervals; the four blades pass through the cross-shaped through hole.
3. The portable continuous positive and negative pressure screw joint injector according to claim 2, wherein the injector housing comprises a baffle plate at the rearmost end, the baffle plate is provided with two first through holes corresponding to each other in position, the limiting plate is further provided with two second through holes corresponding to each other in position, and the first through holes correspond to the second through holes in position.
4. The portable continuous positive and negative pressure threaded connector injector of claim 3, wherein the limiting plate is fixed to the baffle plate by passing through the first through hole and the second through hole by bolts and matching with nuts.
5. The portable continuous positive and negative pressure screw joint injector according to claim 1, wherein the three-way stopcock comprises a handle, a valve core and a valve body, the handle is mounted on the valve core, the valve core is mounted in the valve body, three channels, namely a first channel, a second channel and a third channel, are arranged on the valve body, the first channel and the second channel are located on the same horizontal line, and the third channel is arranged perpendicular to the first channel and the second channel; the screw socket is sleeved on the port of the second channel and limited on the second channel.
6. The portable sustained positive and negative pressure screw-on syringe of claim 5, wherein the three-way stopcock is integrally formed with the syringe jacket.
7. The portable continuous positive and negative pressure screw joint injector of claim 5, wherein the handle is provided with arrow protrusions corresponding to the three channels.
8. The portable continuous positive and negative pressure screw joint injector according to claim 1, wherein the screw seat is a tubular body, and the inner wall of the screw seat is provided with threads for threaded connection with the injection needle.
9. The portable sustained positive and negative pressure screw joint injector according to claim 1, wherein the rear end of the core rod is a push-pull portion, and the push-pull portion is a push-pull plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221900747.9U CN218833257U (en) | 2022-07-23 | 2022-07-23 | Portable continuous positive and negative pressure screw joint injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221900747.9U CN218833257U (en) | 2022-07-23 | 2022-07-23 | Portable continuous positive and negative pressure screw joint injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218833257U true CN218833257U (en) | 2023-04-11 |
Family
ID=87298289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221900747.9U Active CN218833257U (en) | 2022-07-23 | 2022-07-23 | Portable continuous positive and negative pressure screw joint injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218833257U (en) |
-
2022
- 2022-07-23 CN CN202221900747.9U patent/CN218833257U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106691865B (en) | Spiral negative pressure extraction booster | |
| CN218833257U (en) | Portable continuous positive and negative pressure screw joint injector | |
| CN211561535U (en) | Anorectal administration device | |
| CN2829775Y (en) | Medical 3-way valve | |
| CN211634678U (en) | Thin-head needle syringe | |
| CN212651135U (en) | Multifunctional abdominal drainage connecting device | |
| CN211749952U (en) | Puncture trocar for internal medicine | |
| CN205796208U (en) | The extension tube structure of micro pump | |
| CN110353992B (en) | Filter for dispensing device or injector and filtering method thereof | |
| CN215610789U (en) | Clinical bacterin diluter of using of animal doctor | |
| CN106730109B (en) | Micro pump screw thread type extension pipe | |
| CN213190156U (en) | Supply pipe carding support for intensive care unit | |
| CN216963035U (en) | Puncture type medicine suction device for electric injector | |
| CN111759425A (en) | Puncture device for cardiology department treatment | |
| CN219630299U (en) | Enema device | |
| CN215079422U (en) | Tympanic membrane puncture assembly | |
| CN218900454U (en) | Contrast injector assembly | |
| CN205434557U (en) | Medical transfusion system | |
| CN215537620U (en) | Three chamber catheters can dismantle into medicine and seal joint | |
| CN211751077U (en) | Liquid preparation device of analgesia pump | |
| CN211156659U (en) | Lacrimal passage irrigation needle | |
| CN220833836U (en) | Drug delivery device with outer supporting structure | |
| CN218900456U (en) | Microbubble generating device | |
| CN217854023U (en) | Water injection device for alveolar lavage | |
| CN219804049U (en) | Hemodialysis machine device that goes up and down |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |