CN219481120U

CN219481120U - Quantitative injector

Info

Publication number: CN219481120U
Application number: CN202320049182.6U
Authority: CN
Inventors: 沈君; 徐亚洲; 杜雷
Original assignee: Shanghai Dashen Industrial Co ltd
Current assignee: Shanghai Dashen Industrial Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-08-08
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a quantitative injector, which comprises an injector main body, a push rod, an adjusting frame, a screw rod and an injection needle, wherein the injector main body is used for storing medicines, medicines are pumped into the injector main body through the push rod and a piston connected with the push rod, or medicines are pushed out, the injector main body is fixed through the adjusting frame, the position of a limiting block on the adjusting frame is adjusted through the screw rod, the movable position of the push rod is limited through the limiting block, so that a certain amount of medicines can be quantitatively extracted from the inside of the injector main body, the injection needle is used for being inserted into an animal body for injecting the medicines.

Description

Quantitative injector

Technical Field

The utility model relates to the technical field of laboratory appliances, in particular to a quantitative injector.

Background

In animal metabolism experiments, operators need to inject medicines into animal bodies so as to observe animal metabolism conditions, in the experiments, a plurality of control bodies can exist, medicines with the same volume are needed to be injected into the animal bodies, medicines are extracted by using a common injector, in order to ensure the rigor of the experiments, each time the medicines are extracted, the experimenters need to repeatedly observe a volume scale on the injector to adjust the medicine volume in the injector, so that the quantitative conditions are the same and very complicated, and a quantitative injector is needed to solve the problems.

Disclosure of Invention

In view of the problems existing in the prior art, the utility model discloses a quantitative injector, which adopts the technical scheme that the quantitative injector comprises an injector main body, a push rod, an adjusting frame, a screw rod and an injection needle, wherein the front end of the push rod is movably arranged in the injector main body through a piston, the injection needle is arranged at the front end of the injector main body and is communicated with the inside of the injector main body, the adjusting frame is of a rod-shaped structure, the injector main body is fixedly clamped at the front part above the adjusting frame, and the screw rod is rotatably arranged in the adjusting frame; the screw rod is provided with a limiting block in a threaded manner, the limiting block is slidably mounted on the adjusting frame and clamped at the rear end of the push rod, medicine is stored in the injector body, the medicine is pumped into the injector body through the push rod and a piston connected with the push rod, or pushed out of the injector body, the injector body is fixed through the adjusting frame, the position of the limiting block on the adjusting frame is adjusted through the screw rod, the movable position of the push rod is limited through the limiting block, therefore a certain amount of medicine can be quantitatively extracted in the injector body, the injector body is inserted into an animal body through an injection needle, and medicine injection is carried out.

As a preferred technical scheme of the quantitative syringe, the upper surface of the syringe main body is drawn with a capacity marking, and the capacity of the medicine in the syringe main body is conveniently checked through the capacity marking.

As a preferred technical scheme of the quantitative injector, the front end of the upper part of the adjusting frame is fixedly provided with the fixing ring, the front half part of the upper part of the adjusting frame is fixedly provided with the clamping ring, the injector main body can be tightly clamped in the clamping ring, the front end of the injector main body is clamped through the fixing ring, the central cavity of the fixing ring is convenient for the injection needle to extend out, and the injector main body is fixed through the clamping ring.

As a preferable technical scheme of the quantitative injector, the rear half part of the adjusting frame is of an opening structure with hollow left and right sides, the screw rod is rotatably arranged in the rear half part of the adjusting frame from front to back, the rear end of the screw rod extends out of the adjusting frame, and the button cap is fixedly arranged.

As a preferred technical scheme of the quantitative injector, the limiting block is of a square structure, a threaded hole is formed in the center of the lower portion of the limiting block, the threaded hole is arranged on a screw rod in a threaded mode, the left end and the right end of the lower portion of the limiting block are slidably located in openings on the front side and the rear side of the rear half portion of the adjusting frame, and the upper half portion of the limiting block is in contact with the rear end of the push rod.

The utility model has the beneficial effects that: according to the utility model, medicines are stored in the syringe main body, medicines are pumped into the syringe main body through the push rod and the piston connected with the push rod, or the medicines are pushed out, the syringe main body is fixed through the adjusting frame, the position of the limiting block on the adjusting frame is adjusted through the lead screw, the movable position of the push rod is limited through the limiting block, so that a certain amount of medicines can be quantitatively extracted in the syringe main body, the syringe needle is inserted into an animal body for medicine injection, the capacity of the medicines in the syringe main body is conveniently checked through the capacity marking, the front end of the syringe main body is clamped through the fixing ring, the central cavity of the fixing ring is convenient for the extension of the syringe needle, and the syringe main body is fixed through the clamping ring.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the main structure of the syringe according to the present utility model;

FIG. 3 is a schematic view of the structure of the adjusting frame of the present utility model;

fig. 4 is a schematic diagram of a stopper structure according to the present utility model.

In the figure: 1-syringe main body, 101-push rod, 102-capacity marking, 2-regulating frame, 201-fixed ring, 202-snap ring, 3-lead screw, 301-button cap, 4-syringe needle, 5-stopper, 501-screw hole.

Detailed Description

Example 1

As shown in fig. 1 to 4, the utility model discloses a quantitative injector, which adopts the technical proposal that the quantitative injector comprises an injector main body 1, a push rod 101, an adjusting frame 2, a screw rod 3 and an injection needle 4, wherein the front end of the push rod 101 is movably arranged in the injector main body 1 through a piston, the injection needle 4 is arranged at the front end of the injector main body 1 and is communicated with the inside of the injector main body 1, a capacity marking 102 is drawn on the upper surface of the injector main body 1, the capacity of medicine in the injector main body 1 is conveniently checked through the capacity marking 102, the adjusting frame 2 is in a rod-shaped structure, the injector main body 1 is fixedly clamped at the front part above the adjusting frame 2, the front end of the upper part of the adjusting frame 2 is fixedly provided with a fixing ring 201, the front half part of the upper part of the adjusting frame 2 is fixedly provided with a clamping ring 202, the syringe main body 1 can be tightly clamped in the clamping ring 202, the front end of the syringe main body 1 is clamped through the fixing ring 201, the central cavity of the fixing ring 201 is convenient for the extension of an injection needle 4, the syringe main body 1 is fixed through the clamping ring 202, a screw rod 3 is rotatably arranged in the adjusting frame 2, the rear half part of the adjusting frame 2 is of an opening structure on the left side and the right side of the hollow inside, the screw rod 3 is rotatably arranged in the rear half part of the adjusting frame 2 from front to back, the rear end of the screw rod 3 extends out of the adjusting frame 2, and a button cap 301 is fixedly arranged; the screw rod 3 is provided with the limiting block 5 in a threaded manner, the limiting block 5 is slidably arranged on the adjusting frame 2 and clamped at the rear end of the push rod 101, the limiting block 5 is of a square structure, the center of the lower part of the limiting block 5 is provided with the threaded hole 501, the threaded hole 501 is threadedly arranged on the screw rod 3, the left and right ends of the lower part of the limiting block 5 are slidably positioned in the openings on the front side and the rear side of the rear half part of the adjusting frame 2, the upper half part of the limiting block 5 is in contact with the rear end of the push rod 101, medicines are stored through the injector main body 1, the injector main body 1 is sucked into the injector main body 1 through the push rod 101 and a piston connected with the injector main body or pushed out, the position of the limiting block 5 on the adjusting frame 2 is regulated through the screw rod 3, the movable position of the push rod 101 is limited through the limiting block 5, a certain amount of medicines can be quantitatively extracted inside the injector main body 1, and the injection needle 4 is inserted into an animal body, and medicine injection is carried out.

The working principle of the utility model is as follows: screwing the button cap 301 to rotate the screw rod 3, moving the limiting block 5 backwards, keeping away from the rear end of the push rod 101, inserting the injection needle 4 into the medicine to be injected, pulling the push rod 101, starting to suck the medicine into the syringe main body 1, observing the capacity marking 102, enabling the extracted medicine capacity to be slightly higher than a required value, reversely screwing the button cap 301, sliding the limiting block 5 along the adjusting frame 2, approaching the push rod 101, extruding the push rod 101, stopping screwing the button cap 301 after the medicine capacity just corresponds to the required value, clamping the rear end of the push rod 101 by the limiting block 5, injecting the medicine into animals, and stopping extracting only by touching the limiting block 5 by the push rod 101 when the medicine is extracted later, wherein the medicine quantification in the syringe main body 1 is the same.

The components not described in detail herein are prior art.

Although the specific embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes and modifications without inventive labor may be made within the scope of the present utility model without departing from the spirit of the present utility model, which is within the scope of the present utility model.

Claims

1. The quantitative injector comprises an injector main body (1), a push rod (101), an adjusting frame (2), a screw rod (3) and an injection needle (4), wherein the front end of the push rod (101) is movably arranged in the injector main body (1) through a piston, and the injection needle (4) is arranged at the front end of the injector main body (1) and is communicated with the inside of the injector main body (1), and the quantitative injector is characterized in that the adjusting frame (2) is of a rod-shaped structure, the injector main body (1) is fixedly clamped at the front part above the adjusting frame (2), and the screw rod (3) is rotatably arranged in the adjusting frame (2); the screw rod (3) is provided with a limiting block (5) in a threaded mode, and the limiting block (5) is slidably arranged on the adjusting frame (2) and clamped at the rear end of the push rod (101).

2. A dosing syringe according to claim 1, wherein: a capacity index line (102) is drawn on the upper surface of the syringe body (1).

3. A dosing syringe according to claim 1, wherein: the front end of the upper part of the adjusting frame (2) is fixedly provided with a fixing ring (201), the front half part of the upper part of the adjusting frame (2) is fixedly provided with a clamping ring (202), and the syringe main body (1) can be tightly clamped in the clamping ring (202).

4. A dosing syringe according to claim 1, wherein: the rear half part of the adjusting frame (2) is of an opening structure at the left side and the right side of the hollow inside, the screw rod (3) is rotatably arranged in the rear half part of the adjusting frame (2) from front to back, the rear end of the screw rod (3) extends out of the adjusting frame (2), and a button cap (301) is fixedly arranged.

5. A dosing syringe according to claim 4, wherein: the limiting block (5) is of a square structure, a threaded hole (501) is formed in the center of the lower portion of the limiting block (5), the threaded hole (501) is installed on the screw rod (3) in a threaded mode, the left end and the right end of the lower portion of the limiting block (5) are slidably located in front side openings and the rear side openings of the rear half portion of the adjusting frame (2), and the upper half portion of the limiting block (5) is in contact with the rear end of the push rod (101).