Veterinary syringe
By adopting a rotatable handle and threaded connecting block design in veterinary syringes, the problem of difficult disassembly of push rods and pistons after the piston is worn in the prior art is solved, and convenient disassembly and replacement is achieved, reducing maintenance and production costs.
Patent Information
- Application Number
- CN202323209144.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-28
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-11-28
AI Technical Summary
The existing gun-type veterinary syringes have complex structures, and the push rod and piston are difficult to disassemble and replace after the piston is worn, resulting in high maintenance and replacement costs.
A veterinary syringe is designed, which has no connection between the handle and the push rod, and uses threaded connecting blocks to achieve convenient disassembly of the push rod and the piston. Combined with automatic spring reset and sealing ring to ensure sealing, simplifying the disassembly process of the device.
It realizes convenient disassembly and replacement of push rods and pistons, reduces maintenance and replacement costs, simplifies the device structure, and reduces production costs.
Smart Images
Figure CN222218010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of veterinary syringes, in particular to a veterinary syringe. Background Art
[0002] A veterinary syringe is a medical device used to inject drugs or vaccines into animals, usually consisting of a needle, a syringe barrel, and a drug push rod.
[0003] Even in the prior art, there are many kinds of veterinary syringes, including simple syringe-type and complex gun-type veterinary syringes. The present application document mainly improves the gun-type veterinary syringes. The gun-type veterinary syringes in the prior art are already very advanced and can be used for continuous injection. After one injection, the medicine can be automatically applied and the amount of medicine for each injection can be adjusted.
[0004] However, the structure of such veterinary continuous syringes in the prior art is complicated; the handle is hinged to the push rod piston, and the push rod and the piston are also tightly limited inside the syringe; so when the piston is worn and damaged, it is extremely troublesome to remove and replace the push rod and the piston, and the cost of such veterinary continuous syringes in the prior art is generally high. If the entire piston is damaged, it is a waste to replace it. Therefore, an improved veterinary syringe is needed to address this problem. Utility Model Content
[0005] The purpose of the utility model is to provide a veterinary syringe to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a veterinary syringe, comprising a needle tube, a fixed block is fixedly provided on the upper end of the needle tube, a handle is movably provided on one side of the surface of the fixed block through a rotating shaft, an injection mechanism is provided inside the needle tube, the injection mechanism comprises a connecting block, a push rod, and a piston, a connecting block is provided on one side of the inner side of the needle tube through a threaded movably screwed connection, a push rod is movably inserted in the middle part of the inner side of the connecting block, a piston is fixedly provided on one end of the push rod, and the piston is movably engaged inside the needle tube; a transmission mechanism is provided between the end of the push rod away from the piston and the handle, the transmission mechanism comprises a threaded rod and a movable ring, a threaded rod is fixedly provided on the end of the push rod away from the piston, and a movable ring is provided on the outer surface of the threaded rod through a threaded movably screwed connection.
[0007] Preferably, a spring is sleeved on the outer surface of the push rod between the movable ring and the connecting block, and the spring can automatically push the push rod and the piston to move leftward, thereby facilitating the resetting of the piston.
[0008] Preferably, a sealing ring is provided between the needle tube and the push rod, and after the push rod is inserted into the needle tube, the sealing ring can ensure the sealing between the push rod and the needle tube.
[0009] Preferably, a handle is fixedly provided at the lower end of the needle tube; the handle can be used to conveniently hold the device for use.
[0010] Preferably, a first one-way valve is fixedly provided on the upper end of the needle tube, and a storage bottle is provided on the upper end of the first one-way valve by means of a threaded movable screw connection; a second one-way valve is fixedly provided on the end of the needle tube away from the handle, and a needle is provided on the outer surface of the second one-way valve by means of a threaded movable screw connection; the storage bottle can be used to store liquid medicine; when the piston moves to the left, the liquid medicine inside the storage bottle can be sucked into the needle tube, and when the piston moves to the right, the liquid medicine can be squeezed out from the needle.
[0011] Preferably, the first one-way valve is connected from the storage bottle to the inside of the needle tube; the second one-way valve is connected from the needle tube to the needle tip; the flow direction of the liquid can be restricted by the first one-way valve and the second one-way valve, thereby facilitating subsequent continuous injection.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. In the utility model, since there is no connection between the handle and the push rod, the handle can be turned up by rotating the handle, and then the connecting block is rotated under the action of the thread, and the connecting block will gradually separate from the needle tube, so that the push rod and the piston part can be disassembled, and the needle tube disassembly process is extremely convenient, so that the piston can be easily replaced and the device can be repaired.
[0014] 2. The disassembly structure of the utility model is very simple, with a handle that can be rotated arbitrarily and a connecting block that is threadedly connected. Such a device has a low cost and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a veterinary syringe of the utility model;
[0016] Figure 2 This is a cross-sectional view of a veterinary syringe of the utility model;
[0017] Figure 3 This is a disassembly view of a push rod in a veterinary syringe of the utility model;
[0018] Figure 4 The utility model is a veterinary syringe Figure 1 Bottom view of .
[0019] In the figure: 1. needle tube; 2. handle; 3. connecting block; 4. push rod; 5. piston; 6. threaded rod; 7. movable ring; 8. spring; 9. sealing ring; 10. grip; 11. first one-way valve; 12. storage bottle; 13. second one-way valve; 14. needle; 15. fixing block. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-4 The utility model provides a technical solution: a veterinary syringe comprises a needle tube 1, a fixing block 15 is fixedly provided on the upper end of the needle tube 1, a handle 2 is movably provided on one side of the surface of the fixing block 15 through a rotating shaft, an injection mechanism is arranged inside the needle tube 1, and the injection mechanism comprises a connecting block 3, a push rod 4, and a piston 5. A connecting block 3 is movably screwed on one side of the inner side of the needle tube 1 through a thread, a push rod 4 is movably inserted in the middle part of the inner side of the connecting block 3, a piston 5 is fixedly provided on one end of the push rod 4, and the piston 5 is movably engaged inside the needle tube 1; a transmission mechanism is arranged between the end of the push rod 4 away from the piston 5 and the handle 2, and the transmission mechanism comprises a threaded rod 6 and a movable ring 7, a threaded rod 6 is fixedly provided on the end of the push rod 4 away from the piston 5, and a movable ring 7 is movably screwed on the outer surface of the threaded rod 6 through a thread.
[0022] A spring 8 is sleeved on the outer surface of the push rod 4 between the movable ring 7 and the connecting block 3, and the spring 8 can automatically push the push rod 4 and the piston 5 to move to the left, so that the piston 5 can be easily reset;
[0023] A sealing ring 9 is provided between the needle tube 1 and the push rod 4. After the push rod 4 is inserted into the needle tube 1, the sealing ring 9 can ensure the sealing between the push rod 4 and the needle tube 1.
[0024] A handle 10 is fixedly provided at the lower end of the needle tube 1; the handle 10 can be used to conveniently hold the device for use;
[0025] A first one-way valve 11 is fixedly provided at the upper end of the needle tube 1, and a storage bottle 12 is provided at the upper end of the first one-way valve 11 through a threaded movably screwed connection; a second one-way valve 13 is fixedly provided at the end of the needle tube 1 away from the handle 2, and a needle 14 is provided on the outer surface of the second one-way valve 13 through a threaded movably screwed connection; the storage bottle 12 can be used to store liquid medicine; when the piston 5 moves to the left, the liquid medicine in the storage bottle 12 can be sucked into the needle tube 1, and when the piston 5 moves to the right, the liquid medicine can be squeezed out from the needle 14;
[0026] The first one-way valve 11 is connected from the storage bottle 12 to the inside of the needle tube 1; the second one-way valve 13 is connected from the needle tube 1 to the needle head 14; the first one-way valve 11 and the second one-way valve 13 can limit the flow direction of the liquid, thereby facilitating the subsequent continuous injection.
[0027] Working principle: When using the device, the user can hold the grip 10 and the handle 2, and then tighten the grip 10 and the handle 2, so that the handle 2 can be driven to rotate counterclockwise around the rotating shaft. At this time, the handle 2 will push the movable ring 7 and the push rod 4 to move to the right and compress the spring 8, so that the piston 5 can be pushed to move to the right. When the piston 5 moves to the right, the liquid medicine inside the needle tube 1 can be squeezed out from the needle 14; it should be noted that there is no connection between the handle 2 and the movable ring 7 at this time. The reason why the rotation of the handle 2 can push the movable ring 7 and the push rod 4 to move to the right is that the width of the handle 2 is smaller than the diameter of the movable ring 7; the specific state can be as follows Figure 4 As shown, when the piston 5 moves to the right and the injection is completed, the handle 2 is released, and at this time, the connecting rod and the piston 5 can automatically reset and move to the left under the action of the spring 8; when moving to the left, the liquid in the storage bottle 12 can be sucked into the needle tube 1; this reciprocating movement can achieve the effect of continuous injection; and when it is necessary to change the injection amount each time, it is only necessary to rotate the movable ring 7 by threading to change the position of the movable ring 7, so as to change the distance that the handle 2 pushes the push rod 4 to move each time, thereby changing the moving distance of the piston 5;
[0028] If you need to disassemble the device, Figure 3 As shown, since the handle 2 and the push rod 4 are not connected in any way, the handle 2 can be turned up by rotating it, and then the connecting block 3 is rotated. Under the action of the thread, the connecting block 3 will gradually separate from the needle tube 1, so that the push rod 4 and the piston 5 can be partially disassembled. The disassembly process of the needle tube 1 is extremely convenient, so that the piston 5 can be easily replaced and the device can be repaired;
[0029] The disassembly structure of the device is very simple, with a handle 2 that can be rotated arbitrarily and a connecting block 3 that is threadedly connected. The cost of the device is low and it is easy to promote and use.
[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A veterinary syringe, comprising a needle tube (1), characterized in that: A fixing block (15) is fixedly provided at the upper end of the needle tube (1), and a handle (2) is movably provided on one side of the surface of the fixing block (15) via a rotating shaft. An injection mechanism is provided inside the needle tube (1), and the injection mechanism comprises a connecting block (3), a push rod (4), and a piston (5). A connecting block (3) is movably screwed on one side of the inside of the needle tube (1) via a thread, and a push rod (4) is movably inserted in the middle of the inner side of the connecting block (3). A piston (5) is fixedly provided at one end of the push rod (4), and the piston (5) is movably engaged inside the needle tube (1); a transmission mechanism is provided between the end of the push rod (4) away from the piston (5) and the handle (2), and the transmission mechanism comprises a threaded rod (6) and a movable ring (7). A threaded rod (6) is fixedly provided on the end of the push rod (4) away from the piston (5), and a movable ring (7) is provided on the outer surface of the threaded rod (6) via a thread.
2. A veterinary syringe according to claim 1, characterized in that: A spring (8) is sleeved on the outer surface of the push rod (4) between the movable ring (7) and the connecting block (3).
3. A veterinary syringe according to claim 1, characterized in that: A sealing ring (9) is provided between the needle tube (1) and the push rod (4).
4. A veterinary syringe according to claim 1, characterized in that: A handle (10) is fixedly provided at the lower end of the needle tube (1).
5. A veterinary syringe according to claim 1, characterized in that: A first one-way valve (11) is fixedly provided at the upper end of the needle tube (1), and a storage bottle (12) is provided at the upper end of the first one-way valve (11) through a threaded movable screw connection; a second one-way valve (13) is fixedly provided at the end of the needle tube (1) away from the handle (2), and a needle (14) is provided on the outer surface of the second one-way valve (13) through a threaded movable screw connection.
6. A veterinary syringe according to claim 5, characterized in that: The first one-way valve (11) is connected from the storage bottle (12) to the inside of the needle tube (1); and the second one-way valve (13) is connected from the needle tube (1) to the direction of the needle head (14).