CN217510648U

CN217510648U - Hand-held veterinary syringe capable of automatically pushing medicine

Info

Publication number: CN217510648U
Application number: CN202220751295.6U
Authority: CN
Inventors: 任勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-09-30
Anticipated expiration: 2032-03-31

Abstract

The utility model discloses a hand-held veterinary injector capable of automatically pushing medicine, relating to the field of injectors, and the technical proposal of the utility model comprises a needle cylinder, a piston, a first slide block, a first spring, a push rod, a first claw and a slide rod; the needle cylinder comprises a liquid storage section and a liquid pushing section, the front end of the liquid storage section is provided with a nipple matched with the needle head, and the piston is in sliding fit in the liquid storage section; the liquid pushing section is matched with a first sliding block, the piston is relatively fixed with the first sliding block, a round hole is formed in the rear end of the liquid pushing section, a first spring is arranged in the liquid pushing section, and two ends of the first spring abut against the first sliding block and the rear end of the liquid pushing section; the grabbing end of the first claw penetrates through the first side hole and then is buckled with the front end of the first sliding block. Can realize automatic injection, the use is more convenient, can be more convenient carry out vaccination or small-dose liquid medicine injection to the animal.

Description

Hand-held veterinary syringe capable of automatically pushing medicine

Technical Field

The utility model relates to the field of injectors, in particular to the field of injectors for animals.

Background

In order to prevent infectious disease outbreak, in the existing livestock breeding, vaccines need to be injected into livestock regularly, but animals are easy to be fierce and run disorderly due to frightening and pain in the injection process, farmers who raise the livestock in pens in the livestock breeding field in China occupy a large proportion, and especially when the vaccines are injected into the cattle, the large strength of the adult cattle exceeds that of people by many times, the farmers are not equipped with special clamping bars in a standardized breeding field, the cattle can be injected after being bound by grabbing cattle ropes, the workload is huge, and some scatter-fed households are suspected to grab and bind the cattle too hard and to be crisp, so that the breeding risk is greatly increased.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a hand-held type can push away veterinary syringe of medicine automatically, this scheme of use can realize automatic acupuncture, injection and pull out the needle, and the use is convenient more quick, can be faster carry out the liquid medicine injection of immunity or small dose to the livestock, the injection personnel's that can significantly reduce work load.

The utility model provides a technical scheme that its technical problem adopted is: a hand-held veterinary injector capable of automatically pushing medicine comprises a needle cylinder, a piston, a first sliding block, a first spring, a push rod, a first claw and a sliding rod;

the needle cylinder comprises a liquid storage section and a liquid pushing section, and a first side hole is formed between the liquid storage section and the liquid pushing section;

the front end of the liquid storage section is provided with a nipple matched with the needle head, and the piston is in sliding fit in the liquid storage section;

the liquid pushing section is matched with a first sliding block, the first sliding block can axially slide relative to the liquid pushing section and cannot circumferentially rotate, the piston is relatively fixed with the first sliding block, a round hole is formed in the rear end of the liquid pushing section, the push rod penetrates through the round hole and is fixed with the first sliding block, a first spring is arranged in the liquid pushing section, and two ends of the first spring abut against the first sliding block and the rear end of the liquid pushing section;

the fixed end of the first claw is hinged to the side wall of the liquid pushing section, and the grabbing end of the first claw penetrates through the first side hole and then buckles the front end of the first sliding block;

the needle head comprises a first claw and a second claw, the first claw is arranged on the first claw, the second claw is arranged on the second claw, the first claw is arranged on the second claw, the second claw is arranged on the first claw, the first claw is hinged to the rear end of the sliding rod, the front end of the sliding rod extends to the front of the liquid storage section, a trigger plate is arranged on the front of the liquid storage section, the trigger plate is fixed to the front end of the sliding rod, and a window for the needle head to penetrate through is formed in the trigger plate.

According to the scheme, the first sliding block and the piston are controlled to slide through the push rod, so that the liquid medicine is extracted into the needle cylinder, the first sliding block slides backwards, the first spring is compressed, and the first sliding block is buckled and limited through the grabbing end of the first claw; during injection, after the needle head enters the muscle, the trigger plate is contacted with the skin, the trigger plate transmits the reaction force backwards to the swing rod through the slide rod, the swing rod drives the first hook claw to swing outwards, therefore, the first hook claw releases the first sliding block, the piston is pushed under the action of the elastic force of the first spring, and the piston pushes the liquid medicine to enter the muscle, so that automatic injection is completed.

Preferably, a second spring is arranged between the trigger plate and the front end of the liquid pushing section. Be convenient for provide the pretightning force forward to the trigger plate through the second spring, and then the pulling slide bar makes first hook keep inside chucking first slider.

Preferably, the first sliding block is provided with a threaded hole, the front end of the push rod sequentially penetrates through the round hole and the threaded hole from the outside of the needle cylinder, the push rod is in sliding fit with the round hole, the front end of the push rod is fixed with the piston, a threaded section matched with the threaded hole is arranged in the middle of the push rod, and the first spring is sleeved outside the push rod. The push rod is adapted to the threaded hole of the first sliding block so as to adjust different amounts of liquid medicine, and the relative position of the push rod and the first sliding block can be adjusted.

Preferably, the outer cylinders are arranged on the peripheries of the needle cylinder and the slide bar, the front end of the outer cylinder is provided with a slide cylinder in sliding fit with the slide bar, the rear end of the slide cylinder is provided with internal threads, and the internal threads are matched with the holding component. The syringe can be used for protective guidance of the inner components on the one hand and for connection to a grip assembly for a slightly remote injection on the other hand.

Preferably, the outer cylinder (14) is axially provided with a strip-shaped side window (18), the strip-shaped side window (18) is in sliding fit with a push block (19), the push block (19) is provided with a connecting piece (20) penetrating through the strip-shaped side window, the connecting piece extends into the liquid pushing section to form a pull rod, and the pull rod is fixed with the first sliding block. The first sliding block and the piston are pushed by the pushing block, the sliding of the first sliding block and the piston is controlled, and the extraction of the liquid medicine is completed.

Preferably, the rear end of the push rod is provided with a push plate capable of rotatably adjusting the liquid pumping amount. The fixed amount of liquid drawn is adjusted by rotation.

Preferably, the inner wall axial of liquid pushing section is provided with direction sand grip, the lateral wall of first slider be provided with the guide way of direction sand grip adaptation. Through the cooperation of guide way and direction sand grip, can be fine make first slider only the axial slip at the liquid pushing section, can not rotate along with the push rod.

Preferably, the holding assembly comprises a holding barrel, a second sliding block, a third sliding block, a second claw and a first connecting disc;

the holding cylinder comprises an emission section and a pushing section, and a second side hole is formed between the emission section and the pushing section;

the second sliding block is in sliding fit with the launching section, a third spring is arranged in the launching section, two ends of the third spring are respectively abutted against the second sliding block and the rear end of the launching section, the second claw is arranged on the outer side of the launching section, the middle of the second claw is hinged with the launching section, a pre-tightening spring is arranged between the pressing end of the second claw and the launching section, and the grabbing end of the second claw penetrates through the second side hole and then is buckled at the front end of the second sliding block;

the pushing section is in sliding fit with a third sliding block, the third sliding block and the second sliding block are relatively fixed through a synchronizing rod, a push rod is arranged forwards of the third sliding block, the push rod is in sliding fit with the front end of the holding barrel, a first connecting disc is arranged in front of the holding barrel, the first connecting disc is fixed with the front end of the push rod, and external threads matched with the internal threads are arranged on the first connecting disc.

The present grip assembly may be used to fire an injection syringe where the firing is pushing the syringe forward in its entirety, rather than a breakaway firing. Concretely, with first connection pad and internal thread adaptation, the urceolus pole promotes to be close to and grips a section of thick bamboo relatively for second slider and third slider slide enter into and grip a section of thick bamboo, the third spring receives the compression, wherein the second hook is with the locking of second slider buckle, when needing the transmission, press down the end of pressing, grab and collude end release second slider, the third spring promotes the second slider and slides forward under the elastic force effect, the third slider, second slider and first connection pad together promote urceolus and cylinder forward movement and enter into in the muscle, realize the action of pricking the needle from this.

Preferably, the pushing section is provided with a fourth spring, the natural length of the fourth spring is smaller than the distance between the front end face of the pushing section and the third sliding block, and the elastic coefficient of the fourth spring is smaller than that of the third spring. So that certain elastic force can be provided for resetting to help the needle extraction in the subsequent needle extraction.

Preferably, the holding assembly comprises a second connecting disc and a holding rod, the second connecting disc is fixed at the front end of the holding rod, and external threads matched with the internal threads are arranged on the periphery of the second connecting disc. The holding rod can be directly held by hands, the outer cylinder is directly operated to inject, and the needle insertion is manually pushed at the moment, but not automatically inserted.

The utility model has the advantages that:

this scheme of use can realize automatic needle insertion, injection and pull out the needle, and the use is convenient more quick, can be faster carry out the liquid medicine injection of immunity or small dose to the livestock, injection personnel's that can significantly reduce work load.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only three of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the distribution of the syringes according to embodiment 1 of the present invention;

fig. 2 is a schematic view of a grip assembly according to embodiment 1 of the present invention;

fig. 3 is a schematic view of a grip assembly according to embodiment 2 of the present invention;

the device comprises a needle cylinder 1, a piston 2, a first sliding block 3, a first spring 4, a push rod 5, a first claw 6, a sliding rod 7, a nipple 8, a swing rod 9, a trigger plate 10, a window 11, a second spring 12, a first side hole 13, an outer cylinder 14, a threaded section 15, a guide convex strip 16, a guide groove 17, a strip-shaped side window 18, a push block 19, a connecting piece 20, an internal thread 21, a holding cylinder 22, a third sliding block 23, a third spring 24, a fourth spring 25, a synchronizing rod 26, a second sliding block 27, a second claw 28, a pre-tightening spring 29, a push rod 30, a first connecting disc 31, a second connecting disc 32, a holding rod 33, a pull rod 34 and a push plate 35.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.

Example 1

As shown in figure 1, the hand-held veterinary injector capable of automatically pushing medicine comprises a needle cylinder 1, a piston 2, a first sliding block 3, a first spring 4, a push rod 5, a first claw 6 and a sliding rod 7. The needle cylinder 1 comprises a liquid storage section and a liquid pushing section, and a first side hole 13 is formed between the liquid storage section and the liquid pushing section. The front end of the liquid storage section is provided with a nipple 8 matched with the needle head, and the piston 2 is matched with the liquid storage section in a sliding mode.

The liquid pushing section is matched with a first sliding block 3, the first sliding block 3 can axially slide relative to the liquid pushing section and cannot rotate circumferentially, the piston 2 is relatively fixed with the first sliding block 3, a round hole is formed in the rear end of the liquid pushing section, the push rod 5 penetrates through the round hole and is fixed with the first sliding block 3, a first spring 4 is arranged in the liquid pushing section, and two ends of the first spring 4 abut against the first sliding block 3 and the rear end of the liquid pushing section;

the fixed end of the first claw 6 is hinged to the side wall of the liquid pushing section, and the grabbing end of the first claw 6 passes through the first side hole 13 and then buckles the front end of the first sliding block 3;

the needle head comprises a first claw 6 and a second claw 6, and is characterized in that a swing rod 9 is arranged on the outer side of the first claw 6, the swing rod 9 is hinged to the rear end of a sliding rod 7, the front end of the sliding rod 7 extends to the front of a liquid storage section, a trigger plate 10 is arranged in front of the liquid storage section, the trigger plate 10 is fixed to the front end of the sliding rod 7, and a window 11 for the needle head to pass through is formed in the trigger plate 10.

According to the scheme, the first sliding block 3 and the piston 2 are controlled to slide through the push rod 5, on one hand, liquid medicine is extracted into the needle cylinder 1, on the other hand, the first sliding block 3 slides backwards, the first spring 4 is compressed, and the first sliding block 3 is clamped and limited through the grabbing end of the first claw 6; during injection, after the needle head enters muscles, the trigger plate 10 is in contact with skin, the trigger plate 10 transmits the reaction force to the swing rod 9 through the slide rod 7, the swing rod 9 drives the first hook claw 6 to swing outwards, therefore, the first hook claw 6 releases the first sliding block 3, the piston 2 is pushed by the elasticity of the first spring 4, and the piston 2 pushes the liquid medicine to enter the muscles, so that automatic injection is completed.

A second spring 12 is arranged between the trigger plate 10 and the front end of the liquid pushing section. Be convenient for provide the pretightning force forward to the trigger plate through the second spring, and then the pulling slide bar makes first hook keep inside chucking first slider.

The first sliding block 3 is provided with a threaded hole, the front end of the push rod 5 sequentially penetrates through the round hole and the threaded hole from the outside of the needle cylinder 1, the push rod 5 is in sliding fit with the round hole, the front end of the push rod 5 is fixed with the piston 2, a threaded section 15 matched with the threaded hole is arranged in the middle of the push rod 5, and the first spring 4 is sleeved outside the push rod 5. The push rod 5 is matched with the threaded hole of the first slide block 3 so as to adjust different amounts of liquid medicine, and the relative position of the push rod 5 and the first slide block 3 can be adjusted.

The outer cylinder 14 is arranged on the peripheries of the needle cylinder 1 and the sliding rod 7, the sliding cylinder is arranged at the front end of the outer cylinder 14 and is in sliding fit with the sliding rod 7, the inner thread 21 is arranged at the rear end of the sliding cylinder, and the inner thread 21 is matched with the holding component. The syringe 1 can be used on the one hand for the protective guidance of the internal components and on the other hand for the connection to a grip assembly for the injection of a slightly longer distance.

The outer barrel 14 is axially provided with a strip-shaped side window 18, the strip-shaped side window 18 is in sliding fit with a push block 19, the push block 19 is provided with a connecting piece 20 penetrating through the strip-shaped side window 18, the connecting piece 20 extends into the liquid pushing section to form a pull rod 34, and the pull rod 34 is fixed with the first sliding block 3. The first sliding block 3 and the piston 2 are pushed by the pushing block 19, the sliding of the first sliding block 3 and the piston 2 is controlled, and the liquid medicine is extracted.

The rear end of the push rod 5 is provided with a push plate which can rotate to adjust the liquid pumping amount. The liquid pumping amount can be conveniently adjusted by rotating the push plate.

The inner wall axial of liquid pushing section is provided with direction sand grip 16, the lateral wall of first slider 3 be provided with the guide way 17 of direction sand grip 16 adaptation. Through the cooperation of the guide groove 17 and the guide convex strip 16, the first sliding block 3 can only axially slide in the liquid pushing section and cannot rotate along with the push rod.

As shown in fig. 2, the holding assembly includes a holding cylinder 22, a second slider 27, a third slider 23, a second claw 28 and a first connecting disc 31;

the holding cylinder 22 comprises an emission section and a pushing section, and a second side hole is arranged between the emission section and the pushing section;

the second sliding block 27 is in sliding fit with the launching section, a third spring 24 is arranged in the launching section, two ends of the third spring 24 respectively abut against the second sliding block 27 and the rear end of the launching section, the second claw 28 is arranged on the outer side of the launching section, the middle of the second claw 28 is hinged with the launching section, a pre-tightening spring 29 is arranged between the pressing end of the second claw 28 and the launching section, and the grabbing end of the second claw 28 passes through the second side hole and then is buckled at the front end of the second sliding block 27;

the pushing section is in sliding fit with a third sliding block 23, the third sliding block 23 and the second sliding block 27 are relatively fixed through a synchronizing rod 26, a push rod 30 is arranged forward of the third sliding block 23, the push rod 30 is in sliding fit with the front end of the holding barrel 22, a first connecting disc 31 is arranged in front of the holding barrel 22, the first connecting disc 31 is fixed with the front end of the push rod 30, and the first connecting disc 31 is provided with an external thread matched with the internal thread 21.

The present grip assembly may be used to fire an injection syringe where the firing is pushing the syringe 1 forward in its entirety, rather than a breakaway firing. Specifically, the first connecting disc 31 is matched with the internal thread 21, the rod of the outer cylinder 14 is pushed to approach the holding cylinder 22, so that the second slider 27 and the third slider 23 slide into the holding cylinder 22, the third spring 24 is compressed, the second claw 28 locks the second slider 27 in a buckling manner, when the needle needs to be launched, the pressing end is pressed down, the grabbing end releases the second slider 27, the third spring 24 pushes the second slider 27 to slide forward under the action of elastic force, and the third slider 23, the second slider 27 and the first connecting disc 31 together push the outer cylinder 14 and the needle cylinder 1 to move forward to enter muscles, so that the needle inserting action is realized.

The pushing section is provided with a fourth spring 25, the natural length of the fourth spring 25 is smaller than the distance between the front end face of the pushing section and the third sliding block 23, and the elastic coefficient of the fourth spring 25 is smaller than that of the third spring 24. So that certain elastic force can be provided for resetting to help the needle extraction in the subsequent needle extraction.

Example 2

As shown in fig. 3, compared with embodiment 1, embodiment 2 has the following distinguishing technical features: the holding assembly comprises a second connecting disc and a holding rod 33, the second connecting disc is fixed at the front end of the holding rod 33, and external threads matched with the internal threads 21 are arranged on the periphery of the second connecting disc 32. The holding rod 33 can be directly held by hand to directly operate the outer barrel 14 for injection, in this case, the needle is manually pushed instead of automatically inserted.

The injection device has the advantages that the injection of the medicine is more time-saving and labor-saving, the injection can be completed by inserting the needle into one cow for two to three seconds, the injection can be completed by one meter away from the animal by matching with the holding rod 33, the movement of the piston 2 is controlled by rotating the push rod 5, and the control on the medicine amount is more accurate.

The above-mentioned embodiments should not limit the present invention in any way, and all the technical solutions obtained by adopting equivalent replacement or equivalent conversion fall within the protection scope of the present invention.

Claims

1. A hand-held veterinary injector capable of automatically pushing medicine is characterized by comprising a needle cylinder (1), a piston (2), a first sliding block (3), a first spring (4), a push rod (5), a first claw (6) and a sliding rod (7);

the needle cylinder (1) comprises a liquid storage section and a liquid pushing section, and a first side hole (13) is formed between the liquid storage section and the liquid pushing section;

a nipple (8) matched with the needle head is arranged at the front end of the liquid storage section, and the piston (2) is in sliding fit in the liquid storage section;

the liquid pushing section is matched with a first sliding block (3), the first sliding block (3) can axially slide relative to the liquid pushing section and cannot rotate circumferentially, the piston (2) is relatively fixed with the first sliding block (3), a round hole is formed in the rear end of the liquid pushing section, the push rod (5) penetrates through the round hole and is fixed with the first sliding block (3), a first spring (4) is arranged in the liquid pushing section, and two ends of the first spring (4) abut against the first sliding block (3) and the rear end of the liquid pushing section;

the fixed end of the first claw (6) is hinged to the side wall of the liquid pushing section, and the grabbing end of the first claw (6) penetrates through the first side hole (13) and then is buckled with the front end of the first sliding block (3);

first hook (6) are provided with pendulum rod (9) to the outside, pendulum rod (9) with the rear end of slide bar (7) is articulated, the front end of slide bar (7) extends to the place ahead of stock solution section, the place ahead of stock solution section is provided with trigger plate (10), trigger plate (10) with the front end of slide bar (7) is fixed, trigger plate (10) set up and are used for window (11) that the syringe needle passed.

2. A hand-held, automatically propellable veterinary injector according to claim 1, further comprising: a second spring (12) is arranged between the trigger plate (10) and the front end of the liquid pushing section.

3. A hand-held veterinary injector that automatically propels a medicament according to claim 1, further comprising: the first sliding block (3) is provided with a threaded hole, the front end of the push rod (5) sequentially penetrates through the round hole and the threaded hole from the outside of the needle cylinder (1), the push rod (5) is in sliding fit with the round hole, the front end of the push rod (5) is fixed with the piston (2), the middle of the push rod (5) is provided with a threaded section (15) matched with the threaded hole, and the first spring (4) is sleeved on the push rod (5).

4. A hand-held, automatically propellable veterinary injector according to claim 3, wherein: the outer cylinder (14) is arranged on the peripheries of the needle cylinder (1) and the sliding rod (7), a sliding cylinder is arranged at the front end of the outer cylinder (14) and is in sliding fit with the sliding rod (7), an internal thread (21) is arranged at the rear end of the sliding cylinder, and the internal thread (21) is matched with the holding assembly.

5. A hand-held, automatically propellable veterinary injector according to claim 4, further comprising: the outer barrel (14) is axially provided with a strip-shaped side window (18), the strip-shaped side window (18) is in sliding fit with a push block (19), the push block (19) is provided with a connecting piece (20) penetrating through the strip-shaped side window (18), the connecting piece (20) extends into the liquid pushing section to form a pull rod (34), and the pull rod (34) is fixed with the first sliding block (3).

6. A hand-held, automatically propellable veterinary injector according to claim 3, wherein: the rear end of the push rod (5) is provided with a push plate which can rotate to adjust the liquid pumping amount.

7. A hand-held, automatically propellable veterinary injector according to claim 4, further comprising: the inner wall axial of liquid pushing section is provided with direction sand grip (16), the lateral wall of first slider (3) be provided with guide way (17) of direction sand grip (16) adaptation.

8. A hand-held, automatically propellable veterinary injector according to claim 4, further comprising: the holding assembly comprises a holding cylinder (22), a second sliding block (27), a third sliding block (23), a second claw (28) and a first connecting disc (31);

the holding barrel (22) comprises a transmitting section and a pushing section, and a second side hole is formed between the transmitting section and the pushing section;

the second sliding block (27) is in sliding fit with the emission section, a third spring (24) is arranged in the emission section, two ends of the third spring (24) are respectively abutted against the second sliding block (27) and the rear end of the emission section, a second claw (28) is arranged on the outer side of the emission section, the middle of the second claw (28) is hinged with the emission section, a pre-tightening spring (29) is arranged between the pressing end of the second claw (28) and the emission section, and the grabbing end of the second claw (28) penetrates through the second side hole and then is buckled at the front end of the second sliding block (27);

the pushing section is in sliding fit with a third sliding block (23), the third sliding block (23) and the second sliding block (27) are relatively fixed through a synchronizing rod (26), a push rod (30) is arranged forwards of the third sliding block (23), the push rod (30) is in sliding fit with the front end of a holding barrel (22), a first connecting disc (31) is arranged in front of the holding barrel (22), the first connecting disc (31) is fixed with the front end of the push rod (30), and external threads matched with the internal threads (21) are arranged on the first connecting disc (31).

9. A hand-held, automatically propellable veterinary injector according to claim 8, wherein: the pushing section is provided with a fourth spring (25), the natural length of the fourth spring (25) is smaller than the distance between the front end face of the pushing section and the third sliding block (23), and the elastic coefficient of the fourth spring (25) is smaller than that of the third spring (24).

10. A hand-held, automatically propellable veterinary injector according to claim 9, wherein: the holding assembly comprises a second connecting disc (32) and a holding rod (33), the second connecting disc (32) is fixed at the front end of the holding rod (33), and external threads matched with the internal threads (21) are arranged on the periphery of the second connecting disc (32).