CN213758744U - Plastic syringe capable of accurately metering - Google Patents
Plastic syringe capable of accurately metering Download PDFInfo
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- CN213758744U CN213758744U CN202022384640.0U CN202022384640U CN213758744U CN 213758744 U CN213758744 U CN 213758744U CN 202022384640 U CN202022384640 U CN 202022384640U CN 213758744 U CN213758744 U CN 213758744U
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- block
- connecting block
- adjusting block
- fixedly connected
- needle cylinder
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Abstract
The utility model belongs to the field of injectors, in particular to a plastic injector capable of accurately metering, which comprises a needle cylinder and a push-in piston, wherein the outer side of the needle cylinder is provided with a metering scale mark, the outer wall of the needle cylinder is fixedly connected with a connecting block, and the inner side of the connecting block is slidably connected with an adjusting block; after in drawing the medicine to the cylinder, promote the regulating block according to measurement scale mark, make the indicator be located the sign position that needs the injection volume, later twist the pilot pin and change, make the pilot pin drive the extrusion piece through the screw thread influence of screw hole and promote the regulating block, make rubber layer and clutch blocks contact, realize the location, later can inject, the end that the push piston is located the cylinder is when promoting the medicine and carry to the position of indicator, the end that the push piston is located the outside receives the separation of regulating block and can't continue to promote, thereby accurate measurement medicine injection volume has been guaranteed, prevent that operating personnel from receiving to rock and influencing the judgement to the injection volume when the injection.
Description
Technical Field
The utility model belongs to the syringe field specifically is a but plastics syringe of accurate measurement.
Background
The injector is a common medical appliance, is also commonly used for injecting livestock breeding vaccines, and is called injection by the process of extracting and injecting gas or liquid by using a needle, and consists of a syringe with a small hole at the front end and a piston core rod matched with the syringe, and is used for injecting a small amount of liquid or injecting the liquid into an area which cannot be accessed by other methods or extracting the liquid or the gas from the area from the small hole at the front end of the syringe when the core rod is extracted, and extruding the liquid or the gas when the core rod is pushed in.
When current plastic syringe carries out the injection operation, in will giving medicine the cylinder with the pump earlier usually, later inject medicine propelling movement through the piston, judge the medicine injection volume according to the scale on cylinder surface when the injection, this kind of judgement mode rocks because of the livestock body very easily when the operation, influences operating personnel to the judgement of scale, causes the increase of injection volume or can not reach the standard to influence the practicality.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a but plastic syringe of accurate measurement to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a but plastics syringe of accurate measurement, includes the cylinder and pushes the piston, the outside of cylinder is equipped with the measurement scale mark, the outer wall fixedly connected with connecting block of cylinder, the inboard sliding connection of connecting block has the regulating block, outer wall one side fixedly connected with rubber layer of regulating block, the top fixedly connected with of regulating block points to the board, the inboard threaded connection of connecting block has the pilot pin, the pilot pin is located the inboard one end fixedly connected with extrusion piece of connecting block, a lateral wall of extrusion piece with the regulating block contacts, the connecting block is kept away from one side inner wall fixedly connected with clutch blocks of extrusion piece.
As a further aspect of the present invention: the inner side of the connecting block is provided with a movable groove, and the adjusting block penetrates through the movable groove and is in sliding connection with the movable groove.
As a further aspect of the present invention: the movable groove is a rectangular groove, and the adjusting block is a rectangular block.
As a further aspect of the present invention: threaded holes are formed in the connecting blocks, and the positioning bolts are in threaded connection with the threaded holes.
As a further aspect of the present invention: the rubber layer is made of rubber materials.
As a further aspect of the present invention: a plurality of grooves are formed in one side wall of the friction block.
As a further aspect of the present invention: and the surface of the pointing board is fixedly adhered with a mark patch.
Compared with the prior art, the beneficial effects of the utility model are that:
according to the scheme, after the medicine is pumped into the needle cylinder, the adjusting block is pushed according to the metering scale mark, the pointing plate is located at the identification position of the injection amount, the positioning bolt is screwed, the positioning bolt drives the extrusion block to push the adjusting block through the thread influence of the threaded hole, the rubber layer is contacted with the friction block, the rubber layer is deformed and attached to the inner wall of the groove due to extrusion, the sliding friction force of the adjusting block is increased, the positioning bolt cannot continuously slide due to the pushing limit of the extrusion block at the moment, then the pushing piston can be pushed to inject the medicine in the needle cylinder, the adjusting block at the moment plays a role in limiting the pushing piston, the end, located outside, of the pushing piston cannot continuously push due to the obstruction of the adjusting block when pushing the medicine to the position of the pointing plate by the end, located inside the needle cylinder, and accurate metering of the medicine injection amount is guaranteed, prevent that operating personnel from receiving when the injection and rocking and influencing the judgement to the injection volume, and this scheme simple structure to the practicality has been improved.
Drawings
FIG. 1 is a schematic view of a precisely metered plastic syringe;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a side view of a precisely metered plastic syringe;
fig. 4 is a schematic structural diagram of a connecting block, a positioning pin and a friction block in a plastic syringe capable of accurately metering.
In the figure: 1. a needle cylinder; 11. measuring a scale mark; 2. pushing in the piston; 3. connecting blocks; 301. a movable groove; 302. a threaded hole; 31. an adjusting block; 311. a rubber layer; 32. a pointing board; 321. marking the patch; 33. positioning bolts; 331. extruding the block; 34. a friction block; 341. and (4) a groove.
Detailed Description
Referring to fig. 1 to 4, in an embodiment of the present invention, a plastic injector capable of accurately measuring, includes a needle cylinder 1 and a push piston 2, a measuring scale mark 11 is disposed on an outer side of the needle cylinder 1, a connecting block 3 is fixedly connected to an outer wall of the needle cylinder 1, an adjusting block 31 is slidably connected to an inner side of the connecting block 3, a rubber layer 311 is fixedly connected to one side of an outer wall of the adjusting block 31, a pointing plate 32 is fixedly connected to a top of the adjusting block 31, a positioning bolt 33 is connected to an inner side thread of the connecting block 3, an extruding block 331 is fixedly connected to one end of the positioning bolt 33 located inside the connecting block 3, a side wall of the extruding block 331 contacts with the adjusting block 31, and a friction block 34 is fixedly connected to an inner wall of one side of the connecting block 3 away from the extruding block 331; after the medicine is pumped into the syringe 1, the adjusting block 31 is pushed according to the metering graduation mark 11, so that the pointing plate 32 is located at the mark position of the injection amount, then the positioning bolt 33 is screwed, so that the positioning bolt 33 drives the extruding block 331 to push the adjusting block 31 through the thread influence of the threaded hole 302, so that the rubber layer 311 approaches and contacts the position of the friction block 34, at the moment, the rubber layer 311 deforms due to extrusion and is attached to the inner wall of the groove 341, so that the sliding friction force of the adjusting block 31 is increased, at the moment, the adjusting block 31 cannot continuously slide due to the pushing limit of the extruding block 331, the whole position is stable, then the pushing piston 2 can be pushed to inject the medicine in the syringe 1, and when the pushing piston 2 is pushed, the adjusting block 31 plays a role in limiting the pushing piston 2, so that the end of the pushing piston 2 located in the syringe 1 pushes the medicine to the position of the pointing plate 32, because the end that the push piston 2 is located the outside receives the unable continuation promotion of separation of regulating block 31, thereby guaranteed accurate measurement medicine injection volume, prevent that operating personnel from receiving to rock and influencing the judgement to the injection volume when the injection, and this scheme simple structure, thereby the practicality has effectively been improved, when needs continue to take out surplus dose, only need unscrew the pilot pin 33 in the screw hole 302 and remove the extrusion of extrusion piece 331 to regulating block 31 fixed, make regulating block 31 can continue to slide in activity groove 301, can take regulating block 31 out from activity groove 301 this moment, remove regulating block 31 to the separation that pushes piston 2, will push piston 2 continue to promote can with the release of surplus dose.
In fig. 2: a movable groove 301 is formed in the inner side of the connecting block 3, the adjusting block 31 penetrates through the movable groove 301 and is in sliding connection with the movable groove 301, the movable groove 301 is a rectangular groove, and the adjusting block 31 is a rectangular block; the movable groove 301 plays a role in limiting sliding of the adjusting block 31, and due to the matching effect of the rectangular movable groove 301 and the adjusting block 31, the adjusting block 31 cannot rotate when sliding in the movable groove 301, and the overall stability of the pointing plate 32 at the top of the adjusting block 31 is improved.
In fig. 4: a threaded hole 302 is formed in the connecting block 3, and the positioning bolt 33 is connected in the threaded hole 302 in a threaded manner; when the adjusting block 31 which is adjusted after sliding is positioned, an operator rotates the positioning bolt 33, and the positioning bolt 33 is driven to push the extruding block 331 through the thread influence of the threaded hole 302, so that the adjusting block 31 which is adjusted after sliding is clamped and positioned.
In fig. 1 and 2: the rubber layer 311 is made of rubber, and a plurality of grooves 341 are formed in one side wall of the friction block 34; when the positioning bolt 33 pushes the extrusion block 331, the rubber layer 311 gradually enters the inner wall of the groove 341 due to extrusion, so as to enlarge the contact surface and increase the sliding friction force of the adjusting block 31, thereby improving the stability when the adjusting block 31 is limited.
In fig. 1: a mark patch 321 is adhered and fixed on the surface of the pointing board 32; by spraying red dye on the surface of the identification patch 321, the position of the pointing board 32 is more conspicuous, which facilitates the position adjustment of the pointing board 32 by the operator.
The utility model discloses a theory of operation is: before injection, firstly, the medicine is drawn into the syringe 1, then the adjusting block 31 is pushed according to the metering scale mark 11, so that the pointing plate 32 is located at the mark position of the injection amount, then the positioning bolt 33 is screwed, so that the positioning bolt 33 drives the extrusion block 331 to push the adjusting block 31 through the thread influence of the threaded hole 302, so that the rubber layer 311 is close to and contacted with the friction block 34, at the moment, the rubber layer 311 deforms due to extrusion and is attached to the inner wall of the groove 341, so that the sliding friction force of the adjusting block 31 is increased, at the moment, the adjusting block 31 cannot continuously slide due to the pushing limit of the extrusion block 331, the whole position is stable, then the pushing piston 2 can be pushed to inject the medicine in the syringe 1, when the pushing piston 2 is pushed, the adjusting block 31 plays a limiting role on the pushing piston 2, so that the medicine pushed into the syringe 1 reaches the position of the pointing plate 32, because the end that the pushing piston 2 is located the outside is unable to continue to promote by the separation of regulating block 31, thereby guaranteed accurate measurement medicine injection volume, prevent that operating personnel from receiving to rock and influencing the judgement to the injection volume when the injection, when needs continue to take out remaining dose, only need unscrew the pilot pin 33 in the screw hole 302 and remove the extrusion of extrusion piece 331 to regulating block 31 fixed, make regulating block 31 can continue to slide in activity groove 301, can take out regulating block 31 from activity groove 301 this moment, remove regulating block 31 to the separation of pushing piston 2, it can with the push piston 2 continues to promote the release of remaining dose to push.
The above-mentioned, only be the concrete implementation of the preferred embodiment 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 utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A plastic injector capable of accurately metering comprises a needle cylinder (1) and a pushing piston (2), it is characterized in that the outer side of the needle cylinder (1) is provided with a measuring scale mark (11), the outer wall of the needle cylinder (1) is fixedly connected with a connecting block (3), the inner side of the connecting block (3) is connected with an adjusting block (31) in a sliding way, a rubber layer (311) is fixedly connected with one side of the outer wall of the adjusting block (31), a pointing plate (32) is fixedly connected with the top of the adjusting block (31), the inner side of the connecting block (3) is in threaded connection with a positioning bolt (33), one end of the positioning bolt (33) positioned at the inner side of the connecting block (3) is fixedly connected with an extrusion block (331), one side wall of the extrusion block (331) is contacted with the adjusting block (31), the inner wall of one side, far away from the extrusion block (331), of the connecting block (3) is fixedly connected with a friction block (34).
2. The plastic injector capable of accurately metering according to claim 1, wherein the inner side of the connecting block (3) is provided with a movable groove (301), and the adjusting block (31) penetrates through the movable groove (301) and is connected with the movable groove (301) in a sliding manner.
3. A plastic syringe as claimed in claim 2, characterized in that the movable groove (301) is a rectangular groove and the adjusting block (31) is a rectangular block.
4. The plastic syringe capable of being precisely metered according to claim 1, wherein the connecting block (3) is provided with a threaded hole (302), and the positioning bolt (33) is screwed in the threaded hole (302).
5. A plastic syringe as claimed in claim 1, wherein the rubber layer (311) is made of rubber.
6. The plastic syringe capable of being precisely metered according to claim 1, wherein a side wall of the friction block (34) is provided with a plurality of grooves (341).
7. A plastic syringe as claimed in claim 1, characterized in that the surface of the direction plate (32) is adhesively fixed with an identification patch (321).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022384640.0U CN213758744U (en) | 2020-10-23 | 2020-10-23 | Plastic syringe capable of accurately metering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022384640.0U CN213758744U (en) | 2020-10-23 | 2020-10-23 | Plastic syringe capable of accurately metering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213758744U true CN213758744U (en) | 2021-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022384640.0U Active CN213758744U (en) | 2020-10-23 | 2020-10-23 | Plastic syringe capable of accurately metering |
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| Country | Link |
|---|---|
| CN (1) | CN213758744U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662702A (en) * | 2021-08-26 | 2021-11-19 | 山东省畜产品质量安全中心(山东省畜禽屠宰技术中心) | Poultry medicine injection device |
| CN114259623A (en) * | 2021-10-08 | 2022-04-01 | 山东如悦医疗科技有限公司 | Rotary inhalation based dose adjustable syringe |
-
2020
- 2020-10-23 CN CN202022384640.0U patent/CN213758744U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662702A (en) * | 2021-08-26 | 2021-11-19 | 山东省畜产品质量安全中心(山东省畜禽屠宰技术中心) | Poultry medicine injection device |
| CN114259623A (en) * | 2021-10-08 | 2022-04-01 | 山东如悦医疗科技有限公司 | Rotary inhalation based dose adjustable syringe |
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