Auxiliary device for livestock inoculation and use method

Abstract

The invention relates to the technical field of veterinary surgical instruments, in particular to an auxiliary device for livestock and veterinary inoculation and a using method, and the auxiliary device for livestock and veterinary inoculation comprises a needle cylinder, a piston rod and a needle head; an auxiliary assembly is further included. The auxiliary assembly comprises a rack, a handle, a mounting mechanism, a first spring and a limiting mechanism; during specific use, after the mounting mechanism slides and the first spring is compressed to a certain position, the limiting mechanism is used for blocking and limiting the mounting mechanism, the piston rod is pulled, so that the needle cylinder sucks liquid medicine, the handle is held by hand, the needle head is vertically aligned to the part, needing injection, of an animal, the limiting mechanism is loosened, and the first spring pushes the mounting mechanism; the mounting mechanism drives the needle head to rapidly and vertically pierce into muscular tissue, and then liquid medicine is injected; by means of the mode, after the needle head is aligned with an injection part, force can be exerted in an auxiliary mode, and the needle head is driven to vertically and rapidly penetrate into muscular tissue for dosing.

Description

Technical Field

[0001] The present invention relates to the technical field of veterinary surgical instruments, and in particular to an auxiliary device for livestock and animal inoculation and a method of use. Background Art

[0002] In order to ensure the healthy development of animal husbandry, the prevention and control of animal diseases is of vital importance. Vaccination is a key means to prevent animals from being infected with viruses.

[0003] At present, when vaccinating animals, veterinarians usually use syringes to inject drugs into animals. Especially when performing intramuscular injections, it is necessary to ensure that the needle penetrates the muscle vertically and quickly.

[0004] During the long-term vaccination process, it is difficult for veterinarians to ensure that they can accurately apply force to the injection site every time. Vertical and rapid insertion can easily cause the needle to go astray, and the needle cannot smoothly penetrate into the muscle tissue, resulting in the drug being unable to effectively enter the muscle tissue. Summary of the invention

[0005] The purpose of the present invention is to provide an auxiliary device for livestock and veterinary vaccination and a method of use, which can assist in exerting force after the needle is aligned with the injection site, driving the needle to vertically and quickly penetrate the muscle tissue for drug administration.

[0006] To achieve the above-mentioned purpose, in a first aspect, the present invention provides an auxiliary device for livestock and veterinary vaccination, comprising a syringe, a piston rod and a needle; the piston rod is slidably arranged in the syringe; the needle is connected and arranged on one side of the syringe;

[0007] Also included are auxiliary components;

[0008] The auxiliary assembly includes a frame, a handle, a mounting mechanism, a first spring and a limiting mechanism;

[0009] The handle is fixedly arranged at the bottom of the frame; the mounting mechanism is slidably arranged at the top of the frame, and the mounting mechanism is used to install the syringe; the first spring is arranged in the frame, one end of the first spring is fixedly connected to the frame, and the other end of the first spring is fixedly connected to the mounting mechanism; the limiting mechanism is arranged on the frame, and the limiting mechanism is used to block and limit the mounting mechanism after the mounting mechanism slides and compresses the first spring.

[0010] Wherein, the mounting mechanism comprises a slider and a mounting cylinder;

[0011] The slide block is slidably connected to the frame and fixedly connected to the first spring, and is located in the frame; the mounting cylinder is fixedly arranged on the top of the slide block, and the mounting cylinder is used to mount the syringe.

[0012] Wherein, the mounting tube comprises a lower hinge, an upper hinge and a plurality of screws;

[0013] The lower hinge is fixedly arranged on the top of the sliding block; the upper hinge is located on the top of the lower hinge; and the upper hinge is connected to the lower hinge by a plurality of screws.

[0014] Wherein, the installation mechanism also includes an extension page, a pull rod, a push block, a second spring, a locking rod and a third spring;

[0015] The extension page is fixedly arranged on one side of the lower hinge; the extension page has a locking hole; the pull rod is slidably arranged on one side of the extension page and passes through the extension page; the push block is fixedly arranged at one end of the pull rod; the push block has a first mounting cavity; the second spring is fixedly connected to the push block and to the extension page, and is sleeved on the pull rod; the locking rod is slidably arranged in the first mounting cavity and passes through the push block; the third spring is arranged in the first mounting cavity, and is used to apply force to the locking rod.

[0016] Wherein, the frame has a second installation cavity; the limiting mechanism includes a limiting block, a fourth spring, a guide wheel, a trigger and a connecting rope;

[0017] The limit block is slidably arranged in the second mounting cavity; the limit block has a first inclined surface; the fourth spring is arranged in the second mounting cavity for applying force to the limit block; the guide wheel is rotatably arranged in the frame; the trigger is rotatably arranged at the bottom of the frame; one end of the connecting rope is fixedly connected to the limit block, and the other end of the connecting rope is fixedly connected to the trigger.

[0018] Wherein, the auxiliary component further comprises a sleeve and a slide rod;

[0019] The sleeve is fixedly connected to the frame and is located in the frame; the sliding rod is slidably connected to the sleeve and is fixedly connected to the sliding block and is located in the sleeve.

[0020] Wherein, the extension page also has a mounting hole; the auxiliary component also includes a trapezoidal block;

[0021] The trapezoidal block is fixedly arranged on one side of the frame, and the top of the trapezoidal block is located in the mounting hole; the trapezoidal block has a second inclined surface.

[0022] In a second aspect, the present invention also provides a method for using an auxiliary device for livestock vaccination, comprising:

[0023] Sliding the installation mechanism, compressing the first spring, and using the limiting mechanism to block and limit the installation mechanism;

[0024] Pull the piston rod to allow the syringe to absorb the liquid medicine;

[0025] Hold the handle and aim the needle vertically at the area where the animal needs to be injected;

[0026] The limiting mechanism is released, the first spring pushes the mounting mechanism, the mounting mechanism drives the needle to quickly and vertically penetrate into the muscle tissue, and then the drug solution is injected.

[0027] The present invention discloses an auxiliary device for livestock and animal inoculation and a method for using the same. The mounting mechanism is used to mount the syringe, and the frame is used to slide and mount the mounting mechanism. After the mounting mechanism slides to a certain position, the front end can be blocked and limited by the limiting mechanism. At this time, the first spring is compressed, and the rear end of the mounting mechanism is subjected to the elastic force of the first spring. When the limiting mechanism is released, the mounting mechanism will slide forward quickly under the push of the first spring, thereby driving the needle to pierce forward quickly. The handle is used to facilitate holding the whole. When used, the mounting mechanism is slid to compress the first spring. After reaching a certain position, the mounting mechanism is blocked and limited by the limiting mechanism, and the piston rod is pulled to allow the syringe to absorb liquid medicine. The handle is held, and the needle is vertically aligned with the part of the animal that needs to be injected. The limiting mechanism is released, and the first spring pushes the mounting mechanism, and the mounting mechanism drives the needle to quickly and vertically penetrate into the muscle tissue, and then the liquid medicine is injected. With the above method, after the needle is aligned with the injection site, auxiliary force is exerted to drive the needle to quickly and vertically penetrate into the muscle tissue for medication. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0029] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.

[0030] Figure 2 It is a schematic structural diagram of another angle of the first embodiment of the present invention.

[0031] Figure 3 is a cross-sectional view of the first embodiment of the present invention.

[0032] Figure 4 yes Figure 3 A partial enlargement of detail A.

[0033] Figure 5 yes Figure 3 A partial enlargement of detail B.

[0034] Figure 6It is a schematic structural diagram of another angle of the first embodiment of the present invention.

[0035] Figure 7 yes Figure 6 A partial enlargement of detail C.

[0036] Figure 8 is a flow chart of the second embodiment of the present invention.

[0037] 101-syringe, 102-piston rod, 103-needle, 104-frame, 105-handle, 106-mounting mechanism, 107-first spring, 108-limiting mechanism, 109-slider, 110-mounting cylinder, 111-lower hinge, 112-upper hinge, 113-screw, 114-extension page, 115-pull rod, 116-push block, 117-second spring, 118-locking rod, 119-third spring, 120-locking hole, 121-first mounting cavity, 122-second mounting cavity, 123-limiting block, 124-fourth spring, 125-guide wheel, 126-trigger, 127-connecting rope, 128-first inclined plane, 129-sleeve, 130-sliding rod, 131-mounting hole, 132-trapezoidal block, 133-second inclined plane. DETAILED DESCRIPTION

[0038] The first embodiment of the present application is:

[0039] See also Figure 1-Figure 7 ,in, Figure 1 It is a schematic structural diagram of the first embodiment of the present invention. Figure 2 It is a schematic structural diagram of another angle of the first embodiment of the present invention. Figure 3 is a cross-sectional view of the first embodiment of the present invention. Figure 4 yes Figure 3 A partial enlargement of detail A. Figure 5 yes Figure 3 A partial enlargement of detail B. Figure 6 It is a schematic structural diagram of another angle of the first embodiment of the present invention. Figure 7 yes Figure 6 A partial enlargement of detail C.

[0040] The present invention provides an auxiliary device for animal husbandry and veterinary inoculation, comprising a syringe 101, a piston rod 102 and a needle 103; further comprising an auxiliary component; the auxiliary component comprises a frame 104, a handle 105, a mounting mechanism 106, a first spring 107 and a limiting mechanism 108; the mounting mechanism 106 comprises a slider 109 and a mounting cylinder 110; the mounting cylinder 110 comprises a lower hinge 111, an upper hinge 112 and a plurality of screws 113; the mounting mechanism 106 also comprises an extension page 114, a pull rod 115, a push block 116, a second spring 117, a locking rod 118 and a third Spring 119; the extension page 114 has a lock hole 120; the push block 116 has a first installation cavity 121; the frame 104 has a second installation cavity 122; the limiting mechanism 108 includes a limiting block 123, a fourth spring 124, a guide wheel 125, a trigger 126 and a connecting rope 127; the limiting block 123 has a first inclined surface 128; the auxiliary component also includes a sleeve 129 and a slide bar 130; the extension page 114 also has a mounting hole 131; the auxiliary component also includes a trapezoidal block 132; the trapezoidal block 132 has a second inclined surface 133. Through the above scheme, after the needle 103 is aligned with the injection site, auxiliary force can be exerted to drive the needle 103 to vertically and quickly penetrate the muscle tissue for drug administration.

[0041] According to this specific embodiment, the piston rod 102 is slidably arranged in the syringe 101; the needle 103 is connected and arranged on one side of the syringe 101; the syringe 101, the piston rod 102 and the needle 103 constitute a syringe commonly used in the prior art, and the needle 103 is detachably inserted at the front end of the syringe 101.

[0042] Furthermore, the handle 105 is fixedly arranged at the bottom of the frame 104; the mounting mechanism 106 is slidably arranged at the top of the frame 104, and the mounting mechanism 106 is used to install the syringe 101; the first spring 107 is arranged in the frame 104, one end of the first spring 107 is fixedly connected to the frame 104, and the other end of the first spring 107 is fixedly connected to the mounting mechanism 106; the limiting mechanism 108 is arranged on the frame 104, and the limiting mechanism 108 is used to block and limit the mounting mechanism 106 after the mounting mechanism 106 slides and compresses the first spring 107.

[0043] In this embodiment, the mounting mechanism 106 is used to mount the syringe 101, and the frame 104 is used to slide and mount the mounting mechanism 106. After the mounting mechanism 106 slides to a certain position, the front end can be blocked and limited by the limiting mechanism 108. At this time, the first spring 107 is compressed, and the rear end of the mounting mechanism 106 is subjected to the elastic force of the first spring 107. When the limiting mechanism 108 is released, the mounting mechanism 106 will slide forward quickly under the push of the first spring 107, thereby driving the needle 103 to stab forward quickly. The handle 105 is used to facilitate holding the whole. When in use, the mounting mechanism 106 is slid and pressed. After the first spring 107 is retracted to a certain position, the limiting mechanism 108 is used to block and limit the mounting mechanism 106, and the piston rod 102 is pulled to allow the syringe 101 to absorb the medicinal solution. The handle 105 is held, and the needle 103 is vertically aligned with the part of the animal that needs to be injected. The limiting mechanism 108 is released, and the first spring 107 pushes the mounting mechanism 106, and the mounting mechanism 106 drives the needle 103 to quickly and vertically penetrate into the muscle tissue, and then the medicinal solution is injected. By adopting the above method, after the needle 103 is aligned with the injection site, auxiliary force can be exerted to drive the needle 103 to quickly and vertically penetrate into the muscle tissue for drug administration.

[0044] Furthermore, the slider 109 is slidably connected to the frame 104 and fixedly connected to the first spring 107 , and is located inside the frame 104 ; the mounting cylinder 110 is fixedly disposed on the top of the slider 109 , and the mounting cylinder 110 is used to mount the syringe 101 .

[0045] In this embodiment, a slide groove is provided on the top of the frame 104, and the slide groove is used for slidingly installing the slider 109. The top of the slider 109 is installed with the installation cylinder 110, and the installation cylinder 110 is used to install the syringe 101. Therefore, the sliding of the slider 109 can drive the syringe 101 to slide, and finally drive the needle 103 to move.

[0046] Furthermore, the lower hinge 111 is fixedly arranged on the top of the slider 109 ; the upper hinge 112 is located on the top of the lower hinge 111 ; the upper hinge 112 is connected to the lower hinge 111 via a plurality of screws 113 .

[0047] In this embodiment, the lower hinge 111 and the upper hinge 112 are both arc-shaped, and are used to adapt to clamp the syringe 101. After the upper hinge 112 and the lower hinge 111 are closed, they are connected by a plurality of screws 113 to clamp the syringe 101, so that the syringe 101, the piston rod 102 and the needle 103 can all be replaced.

[0048] Furthermore, the extension page 114 is fixedly arranged on one side of the lower hinge 111; the extension page 114 has a locking hole 120; the pull rod 115 is slidably arranged on one side of the extension page 114 and passes through the extension page 114; the push block 116 is fixedly arranged at one end of the pull rod 115; the push block 116 has a first mounting cavity 121; the second spring 117 is fixedly connected to the push block 116 and to the extension page 114, and is sleeved on the pull rod 115; the locking rod 118 is slidably arranged in the first mounting cavity 121 and passes through the push block 116; the third spring 119 is arranged in the first mounting cavity 121, for applying force to the locking rod 118.

[0049] In this embodiment, the extension page 114 is installed on the rear side of the lower hinge 111. Pulling the pull rod 115 can drive the push block 116 to move backward and compress the second spring 117 at the same time. The first installation cavity 121 is used to install the locking rod 118 and the third spring 119. When the locking rod 118 is not above the locking hole 120, the locking rod 118 is blocked by the extension page 114, and the third spring 119 is also in a compressed state. When the locking rod 118 moves to the top of the locking hole 120, the third spring 119 will push the locking rod 118 to insert into the locking hole 120. Before pulling the piston rod 102 and using the needle 103 to inhale the liquid medicine into the syringe 101, first pull the pull rod 115 to drive the push block 116 to move backward. The locking rod 118 moves backwards, and after moving to a certain position, the third spring 119 pushes the locking rod 118 to insert into the locking hole 120. At this time, the push block 116 is locked and cannot move forward. At the same time, the second spring 117 is also in a compressed state. Then the piston rod 102 can be pulled, and the needle 103 can be used to inhale the medicine into the syringe 101; in this way, after the needle 103 is inserted into the muscle tissue, the locking rod 118 is pushed upward, so that the locking rod 118 retracts into the first mounting cavity 121 and withdraws from the locking hole 120. The push block 116 is no longer locked, and the second spring 117 pushes the push block 116, and the push block 116 pushes the piston rod 102, and the piston rod 102 pushes the medicine to be injected into the muscle tissue through the needle 103.

[0050] Furthermore, the limit block 123 is slidably arranged in the second mounting cavity 122; the limit block 123 has a first inclined surface 128; the fourth spring 124 is arranged in the second mounting cavity 122, and is used to apply force to the limit block 123; the guide wheel 125 is rotatably arranged in the frame 104; the trigger 126 is rotatably arranged at the bottom of the frame 104; one end of the connecting rope 127 is fixedly connected to the limit block 123, and the other end of the connecting rope 127 is fixedly connected to the trigger 126.

[0051] In this embodiment, the second mounting cavity 122 is used to mount the limit block 123 and the fourth spring 124. When the slider 109 moves backward, it presses the limit block 123 downward along the first inclined surface 128, and the limit block 123 gradually retracts into the second mounting cavity 122. At this time, the fourth spring 124 is compressed until the slider 109 moves backward and no longer presses the limit block 123. At this time, the fourth spring 124 drives the limit block 123 to move upward and extend out of the second mounting cavity 122 to block the slider 109 from the front. At this time, the first spring 107 is in a compressed state. Figure 3 As shown; after the needle 103 is aligned with the injection site, the trigger 126 is pulled, and the trigger 126 drives the limit block 123 to move downward through the connecting rope 127, and retracts into the second mounting cavity 122, and no longer blocks the slider 109. At this time, the first spring 107 pushes the slider 109 forward, and the slider 109 drives the syringe 101 forward, and the syringe 101 drives the needle 103 to move forward quickly and vertically penetrate the muscle tissue.

[0052] Furthermore, the sleeve 129 is fixedly connected to the frame 104 and is located inside the frame 104 ; the sliding rod 130 is slidably connected to the sleeve 129 , and is fixedly connected to the slider 109 and is located inside the sleeve 129 .

[0053] In this embodiment, the sleeve 129 is used to slide and install the slide rod 130, and the slide rod 130 moves with the slider 109. The purpose of setting the sleeve 129 and the slider 109 is to prevent the first spring 107 from bending in any direction when being compressed. At the same time, the sleeve 129 also limits the slider 109 from the rear. As long as the slider 109 feels obstruction when moving backward, the slider 109 has passed over the top of the limit block 123.

[0054] Furthermore, the trapezoidal block 132 is fixedly disposed on one side of the frame 104 , and the top of the trapezoidal block 132 is located in the mounting hole 131 ; the trapezoidal block 132 has a second inclined surface 133 .

[0055] In this embodiment, the width of the mounting hole 131 is smaller than the diameter of the locking rod 118, and the diameter of the locking rod 118 is smaller than the width of the locking hole 120; after the needle 103 is aligned with the injection site, the trigger 126 is pulled, and the limit block 123 moves down and no longer blocks the slider 109. At this time, the first spring 107 pushes the slider 109 forward, and the slider 109 drives the syringe 101 forward, and the syringe 101 drives the needle 103 to move forward quickly and vertically penetrate the muscle tissue. At the same time, during this process, the extension page 114 also moves forward, and the locking rod 118 also moves forward. During the forward movement of the locking rod 118, By sliding along the second inclined surface 133 of the trapezoidal block 132, the locking rod 118 will be gradually pushed up. When the slider 109 stops moving forward, the needle 103 is inserted into the muscle tissue, and the locking rod 118 is also pushed out of the locking hole 120 by the second inclined surface 133 of the trapezoidal block 132. At this time, the push block 116 is no longer locked, and the second spring 117 pushes the push block 116, and the push block 116 pushes the piston rod 102. The piston rod 102 pushes the medicine to be injected into the muscle tissue through the needle 103. In this way, the effect of automatically injecting the medicine after the needle 103 is inserted into the muscle tissue can be achieved.

[0056] When using the auxiliary device for livestock vaccination described in this embodiment, one hand holds the handle 105 and the other hand holds the mounting tube 110, and slides the slider 109 backward. When the slider 109 moves backward, it presses the limit block 123 downward along the first inclined surface 128, and the limit block 123 gradually retracts into the second mounting cavity 122. At this time, the fourth spring 124 is compressed until the slider 109 moves backward to be blocked by the sleeve 129, and then no longer presses the limit block 123. At this time, the fourth spring 124 The limit block 123 is driven to move upward and extend out from the second installation cavity 122 to block the slider 109 from the front. At this time, the first spring 107 is in a compressed state; the pull rod 115 is pulled to drive the push block 116 to move backward, and the locking rod 118 moves backward accordingly. When it moves backward to above the locking hole 120, the third spring 119 pushes the locking rod 118 to insert into the locking hole 120. At this time, the push block 116 is locked and cannot move forward. At the same time, the second spring 117 is also in a compressed state; the piston rod 102 is pulled, and the locking rod 118 is pushed backward to move backward to the locking hole 120. The needle 103 sucks the liquid medicine into the syringe 101; the handle 105 is held, the needle 103 is vertically aligned with the part to be injected, and the trigger 126 is pulled. The trigger 126 drives the limit block 123 to move downward through the connecting rope 127, and retracts into the second mounting cavity 122, and no longer blocks the slider 109. At this time, the first spring 107 pushes the slider 109 forward, the slider 109 drives the syringe 101 forward, and the syringe 101 drives the needle 103 to move forward quickly and vertically penetrate the muscle tissue. When the slider 109 stops moving forward, the needle 103 is inserted into the muscle tissue, and the locking rod 118 is pushed out of the locking hole 120 by the second inclined surface 133 of the trapezoidal block 132. At this time, the push block 116 is no longer locked, and the second spring 117 pushes the push block 116, and the push block 116 pushes the piston rod 102. The piston rod 102 pushes the liquid medicine through the needle 103 and is injected into the muscle tissue. In this way, the effect of automatically injecting the liquid medicine can be achieved after the needle 103 is inserted into the muscle tissue.

[0057] The second embodiment of the present application is:

[0058] Based on the first embodiment, please refer to Figure 8 ,in, Figure 8 is a flow chart of the second embodiment of the present invention.

[0059] The present invention provides a method for using a livestock and animal inoculation auxiliary device, comprising:

[0060] S1 Slide the installation mechanism 106, compress the first spring 107, and use the limiting mechanism 108 to block and limit the installation mechanism 106;

[0061] S2 pulls the piston rod 102 so that the syringe 101 absorbs the liquid medicine;

[0062] S3 holds the handle 105 and aligns the needle 103 vertically to the part of the animal that needs injection;

[0063] S4 releases the limiting mechanism 108, the first spring 107 pushes the mounting mechanism 106, and the mounting mechanism 106 drives the needle 103 to quickly and vertically penetrate into the muscle tissue, and then injects the liquid medicine.

[0064] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An auxiliary device for livestock and animal inoculation, comprising a syringe, a piston rod and a needle; the piston rod is slidably arranged in the syringe; the needle is connected and arranged on one side of the syringe; characterized in that: Also included are auxiliary components; The auxiliary assembly includes a frame, a handle, a mounting mechanism, a first spring and a limiting mechanism; The handle is fixedly arranged at the bottom of the frame; the mounting mechanism is slidably arranged at the top of the frame, and the mounting mechanism is used to install the syringe; the first spring is arranged in the frame, one end of the first spring is fixedly connected to the frame, and the other end of the first spring is fixedly connected to the mounting mechanism; the limiting mechanism is arranged on the frame, and the limiting mechanism is used to block and limit the mounting mechanism after the mounting mechanism slides and compresses the first spring.

2. The livestock vaccination auxiliary device according to claim 1, characterized in that: The mounting mechanism comprises a sliding block and a mounting cylinder; The slide block is slidably connected to the frame and fixedly connected to the first spring, and is located in the frame; the mounting cylinder is fixedly arranged on the top of the slide block, and the mounting cylinder is used to mount the syringe.

3. The livestock vaccination auxiliary device according to claim 2, characterized in that: The mounting tube comprises a lower hinge, an upper hinge and a plurality of screws; The lower hinge is fixedly arranged on the top of the sliding block; the upper hinge is located on the top of the lower hinge; and the upper hinge is connected to the lower hinge by a plurality of screws.

4. The livestock vaccination auxiliary device according to claim 3, characterized in that: The mounting mechanism also includes an extension leaf, a pull rod, a push block, a second spring, a locking rod and a third spring; The extension page is fixedly arranged on one side of the lower hinge; the extension page has a locking hole; the pull rod is slidably arranged on one side of the extension page and passes through the extension page; the push block is fixedly arranged at one end of the pull rod; the push block has a first mounting cavity; the second spring is fixedly connected to the push block and to the extension page, and is sleeved on the pull rod; the locking rod is slidably arranged in the first mounting cavity and passes through the push block; the third spring is arranged in the first mounting cavity, and is used to apply force to the locking rod.

5. The livestock vaccination auxiliary device according to claim 4, characterized in that: The frame has a second installation cavity; the limiting mechanism includes a limiting block, a fourth spring, a guide wheel, a trigger and a connecting rope; The limit block is slidably arranged in the second mounting cavity; the limit block has a first inclined surface; the fourth spring is arranged in the second mounting cavity for applying force to the limit block; the guide wheel is rotatably arranged in the frame; the trigger is rotatably arranged at the bottom of the frame; one end of the connecting rope is fixedly connected to the limit block, and the other end of the connecting rope is fixedly connected to the trigger.

6. The livestock vaccination auxiliary device according to claim 5, characterized in that: The auxiliary assembly also includes a sleeve and a slide rod; The sleeve is fixedly connected to the frame and is located in the frame; the sliding rod is slidably connected to the sleeve and is fixedly connected to the sliding block and is located in the sleeve.

7. The livestock vaccination auxiliary device according to claim 6, characterized in that: The extension page also has a mounting hole; the auxiliary component also includes a trapezoidal block; The trapezoidal block is fixedly arranged on one side of the frame, and the top of the trapezoidal block is located in the mounting hole; the trapezoidal block has a second inclined surface.

8. A method for using a livestock vaccination auxiliary device, applied to a livestock vaccination auxiliary device as claimed in any one of claims 1 to 7, characterized in that: include: Sliding the installation mechanism, compressing the first spring, and using the limiting mechanism to block and limit the installation mechanism; Pull the piston rod to allow the syringe to absorb the liquid medicine; Hold the handle and aim the needle vertically at the area where the animal needs to be injected; The limiting mechanism is released, the first spring pushes the mounting mechanism, the mounting mechanism drives the needle to quickly and vertically penetrate into the muscle tissue, and then the drug solution is injected.

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