Vaccine injector with adjustable dosage

Abstract

The utility model discloses a dose-adjustable vaccine injector, which belongs to the technical field of injectors, and adopts the technical scheme that the dose-adjustable vaccine injector comprises a quantifying barrel, a quantifying mechanism is arranged in the quantifying barrel, and an injection needle is arranged at the bottom of the quantifying barrel; the quantifying mechanism comprises a positioning assembly, an injection pipe and a plurality of quantifying holes, the injection pipe is arranged in the quantifying barrel, an interlayer is formed between the injection pipe and the quantifying barrel, the bottom of the positioning assembly extends into the interlayer, and the inner wall of the quantifying barrel and the surface of the injection pipe are both in movable contact with the surface of the positioning assembly; the quantitative hole is formed in the quantitative barrel, and the problems that in the prior art, a second screw rod is exposed, under the condition of accidental deformation or breakage, a second limiting nut cannot move to adjust the position, the position of the second limiting nut cannot be accurately adjusted conveniently, and the working efficiency is high are solved. And the required amount of medicine is not convenient to accurately extract.

Description

TECHNICAL FIELD

[0001] The utility model relates to syringe technical field, especially dose adjustable vaccine syringe. BACKGROUND

[0002] The syringe is usually made of plastic or glass, is a hollow cylinder, is used to store and contain liquid medicine, and is marked with a scale on the needle cylinder to accurately measure the amount of injected liquid medicine, and is mainly used for injecting various liquid substances such as medicines and vaccines into human or animal bodies.

[0003] The current metering syringe is used to push the piston in the medicine bottle to move a certain stroke distance through the driving mechanism linkage control by pressing the push rod at the rear end of the syringe, and then output a predetermined dose of medicine liquid through the needle, which can provide the function of outputting a fixed dose of medicine liquid, but the syringe lacks the function of adjusting the injection dose and has a complex structure and high investment cost, and most of the existing metering syringes can only output a fixed amount of liquid medicine and cannot collect a fixed amount of liquid medicine, which is difficult to meet the needs of different users, so a dose adjustable syringe is proposed to solve the above problems.

[0004] The existing patent (publication number: CN220110203U) dose adjustable syringe, the utility model discloses a setting, when using, the second limiting nut is rotated to the scale that needs to extract liquid medicine measurement, the limiting plate can be used for limiting the second limiting nut on the second screw rod, thereby ensuring the accuracy of extracting liquid medicine measurement, compared with the prior art, the liquid medicine can be extracted quantitatively, the first limiting nut is rotated to the scale that needs to output liquid medicine measurement, the limiting barrel cover can be used for limiting the first limiting nut on the first screw rod, thereby ensuring the accuracy of outputting liquid medicine measurement, compared with the prior art, the liquid medicine can be output quantitatively.

[0005] In view of the above problems, the existing patent provides a solution, through the applicant's review of the existing patent (publication number: CN220110203U), the following problems are found: the second screw rod in the prior art is exposed, in the case of accidental deformation or breakage, the second limiting nut cannot be moved and adjusted, and it is not convenient to accurately adjust the position of the second limiting nut, and it is not convenient to accurately extract the required amount of medicine.

[0006] Therefore, a dose adjustable vaccine syringe is provided. UTILITY MODEL CONTENTS

[0007] The utility model discloses a purpose at, provide a dose adjustable vaccine syringe can solve the second screw rod is exposed in the prior art scheme in the case where the deformation or breakage of accident occurs, and the second limiting nut can not be moved and adjusts the position, and inconveniently, the second limiting nut position is accurately adjusted, and inconveniently, the required drug amount is accurately extracted.

[0008] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a dose adjustable vaccine syringe, including the fixed quantity bucket, the inside of fixed quantity bucket is provided with fixed quantity mechanism, the bottom of fixed quantity bucket is provided with injection needle;

[0009] The fixed quantity mechanism includes a positioning assembly, a syringe tube and a plurality of fixed quantity holes, the syringe tube is arranged in the inside of the fixed quantity bucket, a sandwich layer is formed between the syringe tube and the fixed quantity bucket, the bottom of the positioning assembly extends to the inside of the sandwich layer, the inner wall of the fixed quantity bucket and the surface of the syringe tube are in movable contact with the surface of the positioning assembly, and the fixed quantity holes are arranged in the inside of the fixed quantity bucket.

[0010] Preferably, the bottom of the inner wall of the fixed quantity bucket is fixedly connected with a connecting ring, and the surface of the syringe tube is threadedly connected with the inner wall of the connecting ring.

[0011] Preferably, a through hole is formed in the bottom of the fixed quantity bucket, and the top of the injection needle penetrates through the through hole and is fixedly communicated with the bottom of the syringe tube.

[0012] Preferably, a piston rod is arranged in the inside of the syringe tube, the bottom of the piston rod is fixedly connected with a rubber piston, and the rubber piston is movably connected in the inside of the syringe tube.

[0013] Preferably, the top of the piston rod is fixedly connected with a fixed block, the top of the fixed block is fixedly connected with an anti-skid strip, the number of the anti-skid strips is several and evenly distributed on the top of the fixed block, and the two sides of the syringe tube are fixedly connected with holding blocks used in cooperation with the fixed block.

[0014] Preferably, the fixed quantity mechanism includes a positioning assembly, the positioning assembly includes a positioning rod, a magnetic plate and a stopper, the front side of the stopper is fixedly connected with the rear side of the magnetic plate, and the rear side of the stopper penetrates through the fixed quantity hole and is in contact with the surface of the positioning rod.

[0015] Preferably, the surface of the magnetic plate is magnetically attracted to the surface of the fixed quantity bucket, and the front side of the magnetic plate is fixedly connected with a pull ring.

[0016] Preferably, a fixed quantity scale groove is formed in the surface of the fixed quantity bucket, and the number of the fixed quantity scale grooves is several and evenly distributed on the surface of the fixed quantity bucket.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1、The positioning rod is moved to the interlayer formed between the injection tube and the quantitative barrel, so that the positioning rod is protected and bending and breaking are avoided, and the use process is more simple;

[0019] 2、The rear side of the stop block passes through the corresponding quantitative hole, so that the stop block is in contact with the surface of the positioning rod, the stop block blocks the positioning rod, the movement distance of the piston rod in the injection tube is limited, and the accurate adjustment of the vaccine extraction amount is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structural diagram of the dose-adjustable vaccine injector of the utility model;

[0021] Figure 2 It is the three-dimensional connection schematic diagram of the fixed block and the positioning rod in the utility model;

[0022] Figure 3 It is the three-dimensional connection schematic diagram of the positioning assembly in the utility model;

[0023] Figure 4 It is the three-dimensional exploded schematic diagram of the quantitative barrel and the connecting ring in the utility model;

[0024] Figure 5 It is the three-dimensional structural schematic diagram of the bottom of the quantitative barrel in the utility model;

[0025] Figure 6 It is the three-dimensional connection schematic diagram of the piston rod and the fixed block in the utility model.

[0026] In the drawing, 1, quantitative barrel; 2, injection needle; 3, quantitative mechanism; 31, positioning assembly; 311, positioning rod; 312, magnetic plate; 313, stop block; 32, injection tube; 33, quantitative hole; 4, anti-skid strip; 5, fixed block; 6, piston rod; 7, connecting ring; 8, through hole; 9, rubber piston; 10, pull ring; 11, scale groove; 12, holding block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figures 1-6 The utility model provides technical schemes:

[0029] A dose-adjustable vaccine injector comprises a dosing barrel 1, the inside of the dosing barrel 1 is provided with a dosing mechanism 3, and the bottom of the dosing barrel 1 is provided with an injection needle 2;

[0030] The dosing mechanism 3 comprises a positioning assembly 31, an injection tube 32 and a plurality of dosing holes 33, the injection tube 32 is arranged in the inside of the dosing barrel 1, a sandwich layer is formed between the injection tube 32 and the dosing barrel 1, the bottom of the positioning assembly 31 extends into the sandwich layer, the inner wall of the dosing barrel 1 and the surface of the injection tube 32 are in movable contact with the surface of the positioning assembly 31, and the dosing holes 33 are arranged in the inside of the dosing barrel 1.

[0031] Specifically, as shown in Figure 4 , the bottom of the inner wall of the dosing barrel 1 is fixedly connected with a connecting ring 7, and the surface of the injection tube 32 is threadedly connected with the inner wall of the connecting ring 7.

[0032] Specifically, as shown in Figure 1 and Figure 5 , the bottom of the dosing barrel 1 is provided with a through hole 8, and the top of the injection needle 2 penetrates through the through hole 8 and is fixedly communicated with the bottom of the injection tube 32.

[0033] Specifically, as shown in Figure 6 , the inside of the injection tube 32 is provided with a piston rod 6, the bottom of the piston rod 6 is fixedly connected with a rubber piston 9, and the rubber piston 9 is movably connected in the inside of the injection tube 32

[0034] Specifically, as shown in the figure, the top of the piston rod 6 is fixedly connected with a fixed block 5, the top of the fixed block 5 is fixedly connected with anti-skid strips 4, the number of the anti-skid strips 4 is several and evenly distributed on the top of the fixed block 5, and the two sides of the injection tube 32 are fixedly connected with holding blocks 12 used in cooperation with the fixed block 5.

[0035] In this embodiment: by threadedly connecting the surface of the injection tube 32 with the inner wall of the connecting ring 7, the injection tube 32 can be installed in the dosing barrel 1, at this time the positioning rod 311 will move to the sandwich layer formed between the injection tube 32 and the dosing barrel 1, this sandwich layer provides a moving space for the movement of the positioning rod 311, and can avoid the problem that the positioning rod 311 is bent and broken, and avoids the problem that the second screw rod is exposed in the prior art, and the second limiting nut cannot be moved to adjust the position in the case of accidental deformation or breakage.

[0036] Specifically, as shown in Figure 3 , the dosing mechanism 3 comprises a positioning assembly 31, the positioning assembly 31 comprises a positioning rod 311, a magnetic plate 312 and a stop block 313, the front side of the stop block 313 is fixedly connected with the rear side of the magnetic plate 312, and the rear side of the stop block 313 penetrates through the dosing hole 33 and is in contact with the surface of the positioning rod 311.

[0037] Specifically, asFigure 1 and Figure 3 As shown, the surface of the magnetic suction plate 312 is magnetically attracted to the surface of the metering container 1, and a pull ring 10 is fixedly connected to the front side of the magnetic suction plate 312.

[0038] Specifically, such as Figure 1 As shown, the surface of the metering container 1 is provided with metering scale grooves 11, and there are several metering scale grooves 11 that are evenly distributed on the surface of the metering container 1.

[0039] In this embodiment: by passing the rear side of the stop 313 through the corresponding quantitative hole 33 according to the required vaccine dosage, the stop 313 contacts the surface of the positioning rod 311. When the vaccine is drawn, the positioning rod 311 contacts the stop 313 at the corresponding position. The stop 313 acts to block the positioning rod 311, thereby limiting the movement distance of the piston rod 6 in the injection tube 32. This achieves precise adjustment of the vaccine drawing amount and avoids the problem of the existing technical solution not being able to accurately adjust the position of the second limiting nut and not being able to accurately draw the required amount of drug.

[0040] Working principle: By inserting the injection tube 32 into the metering container 1, the injection needle 2 passes through the through hole 8. The surface of the injection tube 32 is then threaded to the inner wall of the connecting ring 7, allowing the injection tube 32 to be installed inside the metering container 1. At this time, the positioning rod 311 moves to the space between the injection tube 32 and the metering container 1, forming a gap. This gap provides movement space for the positioning rod 311 and prevents it from bending or breaking. According to the required vaccine dosage, the back of the stop block 313 passes through the corresponding metering hole 33, making contact between the stop block 313 and the surface of the positioning rod 311. The stop block 313 acts to block the positioning rod 311, restricting the injection tube... The movement distance of the piston rod 6 inside 32 allows for precise adjustment of the vaccine extraction volume. It should be noted that different quantitative holes 33 correspond to different quantitative scale grooves 11. The values ​​of the quantitative scale grooves 11 from bottom to top are five milliliters, ten milliliters, fifteen milliliters, twenty milliliters, twenty-five milliliters, and thirty milliliters, respectively. By selecting different quantitative holes 33, the vaccine extraction volume can be precisely adjusted. This avoids the problem in the existing technical solution where the second screw is exposed. In the event of accidental deformation or breakage, the second limiting nut cannot be moved to adjust its position, and it is inconvenient to precisely adjust the position of the second limiting nut, making it difficult to accurately extract the required amount of drug.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dose adjustable vaccine syringe comprising a dosing barrel (1), characterized in that: The inside of the quantitative barrel (1) is provided with a quantitative mechanism (3), and the bottom of the quantitative barrel (1) is provided with an injection needle (2); The quantitative mechanism (3) comprises a positioning assembly (31), an injection tube (32) and a plurality of quantitative holes (33), the injection tube (32) is arranged in the inside of the quantitative barrel (1), a sandwich layer is formed between the injection tube (32) and the quantitative barrel (1), the bottom of the positioning assembly (31) extends to the inside of the sandwich layer, the inner wall of the quantitative barrel (1) and the surface of the injection tube (32) are in movable contact with the surface of the positioning assembly (31), and the quantitative holes (33) are arranged in the inside of the quantitative barrel (1).

2. A dose adjustable vaccine injector according to claim 1, characterized in that: The bottom of the inner wall of the quantitative barrel (1) is fixedly connected with a connecting ring (7), and the surface of the injection tube (32) is threadedly connected with the inner wall of the connecting ring (7).

3. A dose adjustable vaccine injector according to claim 1, characterized in that: The bottom of the quantitative barrel (1) is provided with a through hole (8), and the top of the injection needle (2) penetrates through the through hole (8) and is fixedly communicated with the bottom of the injection tube (32).

4. A dose adjustable vaccine injector according to claim 1, characterized in that: The inside of the injection tube (32) is provided with a piston rod (6), the bottom of the piston rod (6) is fixedly connected with a rubber piston (9), and the rubber piston (9) is movably connected in the inside of the injection tube (32).

5. A dose adjustable vaccine injector according to claim 4, characterized in that: The top of the piston rod (6) is fixedly connected with a fixed block (5), the top of the fixed block (5) is fixedly connected with anti-skid strips (4), the number of the anti-skid strips (4) is several and is uniformly distributed on the top of the fixed block (5), and the two sides of the injection tube (32) are fixedly connected with holding blocks (12) used in cooperation with the fixed block (5).

6. A dose adjustable vaccine injector according to claim 1, characterized in that: The quantitative mechanism (3) comprises a positioning assembly (31), the positioning assembly (31) comprises a positioning rod (311), a magnetic plate (312) and a stop block (313), the front side of the stop block (313) is fixedly connected with the rear side of the magnetic plate (312), the rear side of the stop block (313) penetrates through the quantitative hole (33) and is in contact with the surface of the positioning rod (311).

7. A dose adjustable vaccine injector according to claim 6, characterized in that: The surface of the magnetic plate (312) is magnetically attracted to the surface of the quantitative barrel (1), and the front side of the magnetic plate (312) is fixedly connected with a pull ring (10).

8. A dose adjustable vaccine injector according to claim 1, characterized in that: The surface of the quantitative barrel (1) is provided with a quantitative scale groove (11), and the number of the quantitative scale grooves (11) is several and is uniformly distributed on the surface of the quantitative barrel (1).

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