CN112998902B

CN112998902B - Syringe for wild animal

Info

Publication number: CN112998902B
Application number: CN202110441312.6A
Authority: CN
Inventors: 陈宗英
Original assignee: Chongyi Yuanlong Special Animal Breeding Co ltd
Current assignee: Chongyi Yuanlong Special Animal Breeding Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-09-30
Anticipated expiration: 2041-04-23
Also published as: CN112998902A

Abstract

A syringe for wild animals comprising: the device comprises a needle head, a double-head piston, a front needle cylinder, a rebound limiting device, a middle connecting sleeve, a rear piston cylinder, a sliding rod and a power starting device; the rebound limiting device is arranged at the front end of the front needle cylinder, a needle head is arranged in the rebound limiting device, two ends of the double-head piston are respectively and tightly connected with the inner walls of the front needle cylinder and the rear piston cylinder in a sliding manner, and the power starting device is fixedly arranged at the rear end of the rear piston cylinder; the rear end of the sliding rod is fixedly arranged in the middle of the double-end piston; when the double-head piston pushes the bottom of the front needle cylinder, the front end of the sliding rod triggers the rebound limiting device; according to the invention, the rebound limiting device is matched with the sliding rod, and after the medicine in the front needle cylinder is injected, the needle head retracts to be separated from the animal body, so that the secondary damage of the needle head to wild animals is avoided; the medicine injection is carried out under the inertia effect by arranging the power starting device, so that the quality is ensured; and can be used by punching for many times, thereby improving the overall utilization rate of the injector.

Description

Syringe for wild animal

Technical Field

The invention relates to the technical field of medical injection tools, in particular to an injector for wild animals.

Background

The injector is one of the most common medical instruments in medical science at present, and is often used for medical examination and treatment, and the main specific applications include drug intramuscular injection, drug intravenous injection, drug subcutaneous injection, body fluid extraction and the like. Today, the production of syringes is already of considerable scale, the variety of which is also varied according to different clinical needs; how to inject medicine into wild animals is a matter which always troubles veterinarians, especially the wild animals with large body size, violent temperament and strong aggressivity;

for example, chinese utility model patent publication No. CN2220293 discloses a remote automatic injector, which comprises a needle head, a needle cylinder and a piston, wherein the needle head is movably connected with the needle cylinder by a movable tube provided with a leakage hole and a rubber sealing ring, one end of the movable tube orifice is blocked by a rubber plug, the needle cylinder is formed by connecting a needle cylinder body with a pressure-resistant cylinder provided with a tail fin and a shaft clamping hole by screw threads, the piston is arranged in the inner cavity of the needle cylinder, and the piston is provided with a rubber sealing ring, a bayonet piston shaft and a spring. The injector is emitted by the emitting device, and the target object is automatically injected in a long distance; however, the speed of injecting the medicine is unstable, and the medicine may run off when the medicine does not contact the animals, so that the injection quality is not good;

for another example, the chinese utility model with application number 201820946192.9 discloses a dart injector, which comprises a barrel, a needle head is mounted on the head of the barrel, a limit plate is arranged at the tail of the needle head, a piston is mounted in the barrel, a pull rod is connected at the central position of the tail of the piston, an inner flanging is arranged along the edge of the tail, a spring is mounted between the piston and the flanging, and a medicament is filled in a cavity between the piston and the front end of the barrel; the tail end of the pull rod is circumferentially provided with an annular groove; the barrel body is sleeved with a tail wing barrel, and the barrel wall of the tail wing barrel is provided with uniform wing plates; an elastic fastener is arranged in the tail end of the empennage barrel along the flanging part and is formed by bending steel wires, the overall shape is an arc shape, two ends of the elastic fastener are bent inwards, and the inner end of the elastic fastener is connected in the groove in a clamped mode. The injection is automatically started after the injection is inserted into an animal body, and the defects that the needle head is still left on the animal body after the injection is finished, the animal is easily injured unnecessarily, and a plurality of potential safety hazards are left;

therefore, a safe and controllable syringe for wild animals is urgently needed to solve the technical problem.

Disclosure of Invention

In order to solve the problems, the invention provides an injector for wild animals, which is characterized in that a double-head piston rebound limiting device, a front needle cylinder, a double-head piston and a sliding rod are arranged to be matched with each other, after a medicine in the front needle cylinder is injected into a certain dose, the double-head piston drives the sliding rod to trigger the rebound limiting device, the technical effects that the needle rebounds after the medicine is injected and the injector falls off from the body of the wild animal are realized, and unnecessary damage to the wild animal during the injection process is avoided.

The technical scheme adopted by the invention is as follows: a syringe for wildlife comprising: syringe needle, double-end piston and preceding cylinder, its characterized in that still includes: the device comprises a rebound limiting device, a middle connecting sleeve, a rear piston cylinder, a sliding rod and a power starting device; the rebound limiting device is arranged at the front end of the front needle cylinder, a needle head is arranged in the rebound limiting device, and the needle head can slide in the rebound limiting device and enter the front needle cylinder; one end of the middle connecting sleeve is fixedly sleeved at the rear end of the front needle cylinder, and the other end of the middle connecting sleeve is fixedly connected with the outer wall of the rear piston cylinder; the power starting device is fixedly arranged at the rear end of the rear piston cylinder;

two ends of the double-head piston are respectively and tightly connected with the inner walls of the front needle cylinder and the rear piston cylinder in a sliding manner, and the rear end of the sliding rod is fixedly arranged in the middle of the double-head piston; a positioning groove is correspondingly formed in the middle connecting sleeve, the front end of the sliding rod can penetrate through the middle connecting sleeve and slide in the positioning groove, and when the double-head piston pushes the bottom of the front needle cylinder, the front end of the sliding rod triggers the rebound limiting device;

the resilience limiting device comprises: the needle head device comprises a sealing plate, a needle head sleeve, a pressure spring, a latch, a return spring and a limiting block; the front end of the needle head sleeve is fixedly provided with a sealing plate, and the rear end of the needle head sleeve is fixedly connected with the front needle cylinder; the upper part of the needle head sleeve is provided with a disc bulge, the lower part of the needle head sleeve is provided with an open slot, the front end of the pressure spring is fixedly arranged at the disc bulge, and the rear end of the pressure spring is contacted with the upper surface of the latch; the latch is hinged with the needle head sleeve, and the lower part of the latch corresponds to the open slot; a baffle is arranged at the upper part of the needle head, one end of the reset spring is fixedly connected with the sealing plate, and the other end of the reset spring is fixedly connected with the upper baffle of the needle head; the lower part of the needle head is fixedly provided with a limiting block, the limiting block can slide in the needle head sleeve, and an oblique angle surface of the limiting block is correspondingly matched with an oblique angle surface of the latch;

the power starting device comprises: the stamping gas cylinder is detachably fixed at the rear end of the rear piston cylinder and is separated from the rear piston cylinder and the double-head piston to form an independent airflow cavity; the valve plug ring sleeve is fixedly arranged at the front part of the punching gas cylinder and corresponds to the gas outlet of the punching gas cylinder; the valve plug is detachably connected with the stamping gas cylinder and can slide in the valve plug ring sleeve; one end of the supporting spring is fixedly connected with the front end of the stamping gas cylinder, and the other end of the supporting spring is fixedly connected with the counterweight load; the counterweight load is slidably sleeved at the front part of the stamping gas cylinder, and a groove is formed in the counterweight load and can support the valve plug and seal the gas outlet of the stamping gas cylinder.

Furthermore, the tail end of the needle head is arranged to be a flaring, and when the needle head is in a locking state, the tail end of the needle head is tightly attached to the inner wall of the front end of the front needle cylinder.

Furthermore, openings are arranged on two sides of the middle connecting sleeve to avoid gaps, and protruding parts of the double-headed piston connected with the sliding rod can be exposed.

Furthermore, the detachable installation mode of the rear piston cylinder and the punching gas cylinder is threaded connection.

Further, the maximum outer diameter of the stamping gas cylinder is the same as the outer diameter of the middle connecting sleeve.

Due to the adoption of the technical scheme, the invention has the following advantages:

(1) according to the invention, the rebound limiting device is matched with the sliding rod, after the medicine in the front needle cylinder is injected, the sliding rod triggers the rebound limiting device, the needle retracts to be separated from the animal body, and the secondary damage of the needle to wild animals is avoided;

(2) the power starting device is arranged, so that after the needle head of the injector is inserted into an animal body, gas in the air cylinder enters the rear piston cylinder under the action of inertia to push the double-head piston, the reliability is improved, and the injection quality is ensured;

(3) the power starting device is detachably arranged on the rear piston cylinder and can be used for multiple times in a stamping way; the needle retracts to be separated from the animal, so that the personnel can conveniently recover the syringe, and the integral utilization rate of the syringe is improved.

Drawings

FIG. 1 is an overall assembly view of the present invention.

Fig. 2 is an overall sectional view of the present invention.

Fig. 3 is a partial enlarged view of the C1 rebound stopper of the present invention.

Fig. 4 is an overall sectional view of the power starting apparatus.

Fig. 5 is a related structural schematic diagram of the ram gas cylinder.

Fig. 6 is a schematic view of the structure of the needle and the connection between the related parts of the present invention.

Fig. 7 is a schematic view of the internal structure of the middle connecting sleeve.

Reference numerals: 1-needle head, 2-rebound limiting device, 3-front needle cylinder, 4-middle connecting sleeve, 5-rear piston cylinder, 6-double-head piston, 7-sliding rod, 8-power starting device, 101-baffle plate, 102-flaring, 201-sealing plate, 202-needle head sleeve, 203-pressure spring, 204-latch, 205-reset spring, 206-limiting block, 401-positioning groove, 402-opening clearance, 2021-disc bulge, 2022-open groove, 801 stamping gas cylinder, 802-valve plug ring sleeve, 803-valve plug, 804-counterweight load and 805-supporting spring.

Detailed Description

The invention discloses a wild animal injector which can be safely and controllably used for wild animals. The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

Example, as shown in fig. 1-2, a syringe for wild animals, the present invention comprises: the device comprises a needle head 1, a front needle cylinder 3, a rebound limiting device 2, a middle connecting sleeve 4, a rear piston cylinder 5, a double-head piston 6, a sliding rod 7 and a power starting device 8; the rebound limiting device 2 is arranged at the front end of the front needle cylinder 3, the needle head 1 is arranged in the rebound limiting device 2, and the needle head 1 can slide in the rebound limiting device 2 and enter the front needle cylinder 3; one end of a middle connecting sleeve 4 is fixedly sleeved at the rear end of the front needle cylinder 3, and the other end is fixedly connected with the outer wall of the rear piston cylinder 5; the power starting device 8 is fixedly arranged at the rear end of the rear piston cylinder 5;

two ends of the double-head piston 6 are respectively and closely connected with the inner walls of the front needle cylinder 3 and the rear piston cylinder 5 in a sliding way, and the rear end of the slide rod 7 is fixedly arranged in the middle of the double-head piston 6; the middle connecting sleeve 4 is internally and correspondingly provided with a positioning groove 401, the front end of the slide rod 7 can penetrate through the middle connecting sleeve 4 and slide in the positioning groove 401, and when the double-headed piston 6 pushes the bottom of the front needle cylinder 3, the front end of the slide rod 7 triggers the rebound limiting device 2.

When the injector is used, the injector body is ejected through the ejection device, and the needle head 1 cannot rebound under the locking of the rebound limiting device 2 and is directly inserted into an animal body; then the power starting device 8 releases power to push the double-head piston 6 to slide forwards, and further the liquid medicine in the front needle cylinder 3 is injected into an animal body through the needle head 1; meanwhile, the double-end piston 6 drives the sliding rod 7 to advance simultaneously, after the injection of the liquid medicine is finished, the sliding rod 7 is in contact with the rebound limiting device 2, the needle head 1 is unlocked, the needle head 1 rebounds to be separated from the animal body, and the whole injection body falls off and completes the injection task.

In an alternative implementation of the embodiment of the present invention, as shown in fig. 3, the rebound stopper 2 includes: the sealing plate 201, the needle head sleeve 202, the pressure spring 203, the latch 204, the return spring 205 and the limiting block 206; wherein the front end of the needle head sleeve 202 is fixedly provided with a sealing plate 201, and the rear end is fixedly connected with the front needle cylinder 3; the upper part of the needle head sleeve 202 is provided with a disc bulge 2021, the lower part is provided with an open slot 2022, the front end of the pressure spring 203 is fixedly arranged at the disc bulge 2021, and the rear end of the pressure spring 203 is contacted with the upper surface of the latch 204; the latch 204 is hinged with the needle sleeve 202, and the lower part of the latch 204 corresponds to the open slot 2022; the arrangement of the pressure spring 203 increases the stability of the latch 204, and ensures that the latch 204 cannot rotate upwards but firmly clamps the limit block 206 when the reaction force of the animal body has a retraction trend in the insertion process of the needle 1, so that the positions of the needle 1 and the needle sleeve 202 are limited to be relatively unchanged;

a baffle plate 101 is arranged at the upper part of the needle head 1, one end of a return spring 205 is fixedly connected with a sealing plate 201, and the other end of the return spring is fixedly connected with the baffle plate 101 on the needle head 1; a limiting block 206 is fixedly arranged at the lower part of the needle 1, the limiting block 206 can slide in the needle sleeve 202, and the oblique angle surface of the limiting block 206 is correspondingly matched with the oblique angle surface of the latch 204. In this embodiment, the return spring 205 is compressed and placed between the needle 1 and the needle hub 202, and when the sliding rod 7 pushes the latch 204 to rotate, and the stop block 206 is released, the needle 1 rebounds under the energy of the return spring 205. The energy of the return spring 205 is released and when the needle 1 is withdrawn for further use, the return spring 205 is again compressed to store energy in preparation for the next rebound.

In an alternative embodiment of the present invention, as shown in fig. 4-5, the power starting apparatus 8 comprises: the air cylinder comprises a punching air cylinder 801, a valve plug ring sleeve 802, a valve plug 803, a counterweight load 804 and a supporting spring 805, wherein the punching air cylinder 801 is detachably fixed at the rear end of the rear piston cylinder 5 and is isolated from the rear piston cylinder 5 and the double-headed piston 6 to form an independent air flow cavity; the valve plug ring sleeve 802 is fixedly arranged at the front part of the punching gas cylinder 801 and corresponds to the gas outlet of the punching gas cylinder 801; the valve plug 803 is detachably connected with the punching gas cylinder 801, and the valve plug 803 can slide in the valve plug ring sleeve 802; one end of a supporting spring 805 is fixedly connected with the front end of the punching gas cylinder 801, and the other end of the supporting spring is fixedly connected with a counterweight load 804; the counterweight load 804 is slidably sleeved at the front part of the stamping gas cylinder 801, and a groove is formed in the counterweight load 804 and can support the valve plug 803 and seal the gas outlet of the stamping gas cylinder 801.

The injector body is ejected through the launching device, enters an animal body, the counterweight load 804 slides forwards under the action of inertia, the valve plug 803 is not constrained by the counterweight load 804, can be extruded outwards under the action of air pressure in the punching gas cylinder, is separated from the punching gas cylinder 801, slides out towards two sides along the valve plug ring sleeve 802, and simultaneously blocks the counterweight load 804 to prevent the rebound, so that smooth gas supply is ensured; the high-pressure gas in the punching gas cylinder 801 rapidly enters the rear piston cylinder from the gas hole to push the double-head piston 6 to move forwards.

In order to ensure that the injector can smoothly inject the medicine after being inserted into the animal body and ensure the tightness of the injector, in an optional implementation manner of the embodiment of the invention, as shown in fig. 6, the tail end of the needle 1 is provided with a flared opening 102, and when the needle 1 is in a locking state, the flared opening is tightly attached to the inner wall of the front end of the front needle cylinder 3, and the shape design improves the tightness in the front needle cylinder 3 and ensures the injection effect.

Before the injector is used, anesthetic needs to be sucked in advance, so that in order to suck the drug from the needle head, in an optional implementation manner of the embodiment of the invention, as shown in fig. 7, two sides of the middle connecting sleeve 4 are provided with opening clearance 402, so that a protruding part of the double-headed piston 6 connected with the sliding rod 7 can be exposed; when the medicine needs to be sucked, the double-head piston 6 is pushed by hand to be connected with the protruding part of the sliding rod 7.

In order to realize the reusable injector, the power starting device 8 and the rear piston cylinder 5 are detachable in a thread screwing mode, an inner thread is arranged on an inner arm at the rear end of the rear piston cylinder 5, and an outer thread is arranged on the outer wall of the stamping gas cylinder 801 and is in thread fit with the rear piston cylinder 5; and the threaded connection mode is adopted, so that the punching gas cylinder 801 can be conveniently detached from the injector body for punching gas supplement, and the repeated use is realized.

In order to ensure the emission distance and the precision requirement of the injector, the maximum outer diameter of the punching gas cylinder 801 is the same as the outer diameter of the middle connecting sleeve 4.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Claims

1. A syringe for wildlife comprising: syringe needle (1), double-end piston (6) and preceding cylinder (3), its characterized in that still includes: the device comprises a rebound limiting device (2), a middle connecting sleeve (4), a rear piston cylinder (5), a sliding rod (7) and a power starting device (8); the rebound limiting device (2) is arranged at the front end of the front needle cylinder (3), a needle head (1) is arranged in the rebound limiting device, and the needle head (1) can slide in the rebound limiting device (2) and enters the front needle cylinder (3); one end of the middle connecting sleeve (4) is fixedly sleeved at the rear end of the front needle cylinder (3), and the other end of the middle connecting sleeve is fixedly connected with the outer wall of the rear piston cylinder (5); the power starting device (8) is fixedly arranged at the rear end of the rear piston cylinder (5);

two ends of the double-head piston (6) are respectively and tightly connected with the inner walls of the front needle cylinder (3) and the rear piston cylinder (5) in a sliding manner, and the rear end of the sliding rod (7) is fixedly arranged in the middle of the double-head piston (6); a positioning groove (401) is correspondingly formed in the middle connecting sleeve (4), the front end of the sliding rod (7) can penetrate through the middle connecting sleeve (4) and slide in the positioning groove (401), and when the double-headed piston (6) pushes the bottom of the front needle cylinder (3), the front end of the sliding rod (7) triggers the rebound limiting device (2);

the resilience limiting device (2) comprises: the needle comprises a sealing plate (201), a needle head sleeve (202), a pressure spring (203), a latch (204), a return spring (205) and a limiting block (206); a sealing plate (201) is fixedly arranged at the front end of the needle head sleeve (202), and the rear end of the needle head sleeve is fixedly connected with the front needle cylinder (3); the upper part of the needle head sleeve (202) is provided with a disc bulge (2021), the lower part of the needle head sleeve is provided with an open slot (2022), the front end of the pressure spring (203) is fixedly arranged at the disc bulge (2021), and the rear end of the pressure spring (203) is contacted with the upper surface of the latch (204); the latch (204) is hinged with the needle head sleeve (202), and the lower part of the latch (204) corresponds to the open slot (2022); a baffle plate (101) is arranged at the upper part of the needle head (1), one end of the return spring (205) is fixedly connected with the sealing plate (201), and the other end of the return spring is fixedly connected with the baffle plate (101) on the needle head (1); a limiting block (206) is fixedly installed at the lower part of the needle head (1), the limiting block (206) can slide in the needle head sleeve (202), and an oblique angle surface of the limiting block (206) is correspondingly matched with an oblique angle surface of the latch (204);

the power starting device (8) comprises: the air cylinder comprises a punching air cylinder (801), a valve plug ring sleeve (802), a valve plug (803), a counterweight load (804) and a supporting spring (805), wherein the punching air cylinder (801) is detachably fixed at the rear end of a rear piston cylinder (5) and is separated from the rear piston cylinder (5) and a double-head piston (6) to form an independent air flow cavity; the valve plug ring sleeve (802) is fixedly arranged at the front part of the punching gas cylinder (801) and corresponds to the gas outlet of the punching gas cylinder (801); the valve plug (803) is detachably connected with the punching gas cylinder (801), and the valve plug (803) can slide in the valve plug ring sleeve (802); one end of the supporting spring (805) is fixedly connected with the front end of the punching gas cylinder (801), and the other end of the supporting spring is fixedly connected with the counterweight load (804); the counterweight load (804) is sleeved on the front part of the punching gas cylinder (801) in a sliding mode, and a groove is formed in the counterweight load (804) and can support the valve plug (803) and seal the gas outlet of the punching gas cylinder (801).

2. Injector for wild animals according to claim 1, characterized in that the tail end of the needle (1) is provided with a flaring (102) which is tightly attached to the inner wall of the front end of the front needle cylinder (3) when the needle (1) is in the locking state.

3. Injector for wild animals according to claim 1, characterized in that the middle connecting sleeve (4) is provided with open clearance (402) on both sides to expose the protruding part of the double-headed piston (6) connected to the sliding rod (7).

4. A syringe for wild animals according to claim 1, wherein the rear barrel (5) is screwed to the ram air cylinder (801).

5. A syringe as claimed in any one of claims 1 to 4, characterised in that the ram cylinder (801) has a maximum external diameter which is the same as the external diameter of the intermediate connecting sleeve (4).