Trigger device of needleless injector
By introducing a reservoir, Hall sensor, and stepped nozzle base design into the needle-free injector, safety and ease of assembly issues during use are resolved, ensuring that the liquid is ejected at a safe angle, thus improving safety and work efficiency.
Patent Information
- Application Number
- CN202422980331.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Needle-free injectors pose safety risks during use, especially the high speed at which the liquid is ejected, which may cause injury to humans or animals, and the inconvenience of assembly and disassembly.
A triggering device for a needle-free injector was designed, comprising a reservoir, a Hall sensor, a spring, a sliding rod, an anti-slip sleeve, an O-ring, a nozzle base, and a stamp. The design ensures safe use by using a level to detect angles, a Hall sensor to detect skin contact, and a spring. Steps are machined on the nozzle base to fix the anti-slip sleeve and spring, improving assembly convenience.
It enables the liquid to be ejected at a safe angle, preventing premature spraying, improving safety and work efficiency, and simplifying the assembly process.
Smart Images
Figure CN223746782U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of medical instruments, and specifically relates to a trigger device of needleless injector. BACKGROUND
[0002] The liquid medicine of the needleless injector is shot out from the nozzle at a flow rate of 300 m / S under high pressure, so we need to ensure the safety of the whole use process to avoid causing harm to people or animals. In view of this problem, first of all, we install a level meter on the mainboard of the device to automatically detect the angle of the device, and only when the device is within the safe use angle, the device will work; secondly, we install a Hall automatic inductor at the front end, and only when the nozzle surface is pressed against the skin of the animal, the device will work to prevent the liquid medicine from being ejected in advance; a seal is added at the front end of the anti-skid sleeve to mark at the same time of injection, improving the work efficiency. SUMMARY
[0003] Therefore, in order to solve the above problems, the utility model provides a trigger device of needleless injector; a step is processed on the nozzle base, which fixes the anti-skid sleeve and the spring at the same time, and the assembly and disassembly are extremely convenient.
[0004] The utility model is implemented as follows: a trigger device of needleless injector is constructed, characterized by comprising a liquid storage tank, a Hall inductor, a spring, a sliding rod, an anti-skid sleeve, an O-shaped ring, a nozzle base, a nozzle, and a seal; the Hall inductor is fixed to the inner wall of the liquid storage tank, the spring passes through the front end of the liquid storage tank, the sliding rod is fixed to the anti-skid sleeve, the O-shaped ring is fixed in the groove of the sliding rod, the anti-skid sleeve passes through the front end of the liquid storage tank, the nozzle base is fixed to the front end of the liquid storage tank, the nozzle is fixed to the nozzle base, and the seal is fixed to the anti-skid sleeve.
[0005] Further, the O-shaped ring is installed on the sliding rod, and no jamming occurs during use.
[0006] Further, a step is processed on the nozzle base, which fixes the anti-skid sleeve and the spring at the same time, and the assembly and disassembly are extremely convenient.
[0007] Further, when the surface of the sliding rod is in contact with the Hall inductor, the nozzle can just be close to the surface of the animal skin, and only when the device is within the safe use angle under the detection of the level meter, the device will work; after the injection is completed, the spring can make the anti-skid sleeve quickly return to the next injection.
[0008] Further, the seal is installed at the front end of the anti-skid sleeve, and the seal also marks at the same time of injecting the vaccine, improving the work efficiency.
[0009] The utility model has the advantages of the following: the O-shaped ring is installed on the sliding rod, and no jamming occurs during use. The step is processed on the nozzle base, and the anti-skid sleeve and the spring are fixed at the same time, so that the assembly and disassembly are very convenient. When the surface of the sliding rod contacts the Hall inductive element, the nozzle can be tightly attached to the surface of the animal skin, and the device only works at the safe use angle under the detection of the level meter. After injection, the spring can make the anti-skid sleeve quickly return, and the next injection is entered. The stamp is installed at the front end of the anti-skid sleeve, so that the marking is performed at the same time of the injection of the vaccine, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the implementation structure schematic diagram of the application.
[0011] Among them: liquid storage tank 1, Hall inductor 2, spring 3, sliding rod 4, anti-skid sleeve 5, O-shaped ring 6, nozzle base 7, nozzle 8, seal 9. DETAILED DESCRIPTION
[0012] The utility model will be described below in combination with the accompanying Figure 1 The utility model is described in detail, and the technical scheme in the utility model embodiment is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.
[0013] The utility model improves and provides a kind of trigger device of needleless injector, as shown in Figure 1 It can be implemented as follows; including liquid storage tank 1, Hall inductor 2, spring 3, sliding rod 4, anti-skid sleeve 5, O-shaped ring 6, nozzle base 7, nozzle 8, seal 9;Hall inductor 2 is fixed in the inner wall of liquid storage tank 1, spring 3 passes through the front end of liquid storage tank 1, sliding rod 4 is fixed on anti-skid sleeve 5, O-shaped ring 6 is fixed in the groove of sliding rod 4, anti-skid sleeve 5 passes through the front end of liquid storage tank 1, nozzle base 7 is fixed in the front end of liquid storage tank 1, nozzle 8 is fixed on nozzle base 7, seal 9 is fixed on anti-skid sleeve 5.
[0014] The utility model has the following advantages in structure:
[0015] The O-shaped ring is installed on the sliding rod, and no jamming occurs during use.
[0016] The step is processed on the nozzle base, and the anti-skid sleeve and the spring are fixed at the same time, so that the assembly and disassembly are very convenient.
[0017] When the sliding rod surface contacts with the Hall inductive element, the nozzle can just be close to the animal skin surface, and only when the safe use angle is detected by the level meter, the device can work.
[0018] After the injection is completed, the spring can make the anti-skid sleeve quickly pop back to enter the next injection.
[0019] The structure is provided with a seal at the front end of the anti-skid sleeve, so that the marking is performed at the same time of the injection of the vaccine, and the work efficiency is improved.
[0020] The above description of the disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A trigger device for a needleless injector, characterized by; It comprises a liquid storage tank (1), a Hall inductor (2), a spring (3), a sliding rod (4), an anti-skid sleeve (5), an O-ring (6), a nozzle base (7), a nozzle (8), and a seal (9). The Hall inductor (2) is fixed to the inner wall of the liquid storage tank (1), the spring (3) passes through the front end of the liquid storage tank (1), the sliding rod (4) is fixed to the anti-skid sleeve (5), the O-ring (6) is fixed in the groove of the sliding rod (4), the anti-skid sleeve (5) passes through the front end of the liquid storage tank (1), the nozzle base (7) is fixed to the front end of the liquid storage tank (1), the nozzle (8) is fixed to the nozzle base (7), and the seal (9) is fixed to the anti-skid sleeve (5).
2. A trigger device for a needle-free injector according to claim 1, wherein: The O-ring (6) is installed on the sliding rod (4), so that no jamming occurs during use.
3. The trigger device for a needle-free injector of claim 1, wherein: The nozzle base (7) is processed with a step, which fixes the anti-skid sleeve and the spring at the same time.
4. The trigger assembly of claim 1 wherein: When the surface of the sliding rod (4) contacts the Hall inductor (2), the nozzle (8) can just adhere to the surface of the animal skin, and only when the safe use angle is reached, the device can work under the detection of the level meter; after injection, the spring can make the anti-skid sleeve quickly return to the next injection.
5. The trigger assembly of claim 1 wherein: The seal (9) is installed at the front end of the anti-skid sleeve (5), so that the animal can be marked at the same time of injection.