A noise reduction structure of a veterinary electric needleless injector

Abstract

The utility model discloses a kind of noise reduction structure of veterinary electric needleless injector;Including motor, oblique falling surface rotation worm, transmission bearing, spring connecting rod;Motor shaft is fixed with rotation worm, transmission bearing is tangent with the slope of rotation worm, transmission bearing is fixed with spring connecting rod.When motor rotates and drives worm to rotate, worm and bearing tangent move from low end to high end, spring connecting rod is moved back to compress spring simultaneously.When worm moves to the highest point, it is driven to fall by spring, the falling surface of this worm is small-angle slope, can effectively reduce the noise generated by spring kinetic energy too big under the premise of not affecting injector nozzle liquid outlet.Compared with prior art, the utility model has the following beneficial effects: the noise reduction mode of a kind of veterinary electric needleless injector proposed by the utility model increases a small-angle included angle to the falling surface of worm rotated by motor, can effectively reduce the noise generated when spring rebounds under the premise of not affecting nozzle liquid outlet.

Description

Technical Field

[0001] This utility model relates to the field of veterinary medical care, specifically to a noise reduction structure for a veterinary electric needleless injector. Background Technology

[0002] A needle-free injector is a veterinary medical device used to replace injection needles, thereby saving needle costs, reducing injection time and difficulty, and preventing cross-infection.

[0003] This device uses pneumatic, hydraulic, or electric methods to spray the internal liquid medicine through tiny nozzles, forming a high-speed, high-pressure jet stream that allows the liquid medicine to penetrate thick epidermis and reach the desired locations such as subcutaneous or intradermal areas for release.

[0004] Existing electric needleless injectors commonly use a structure where a motor drives a compression spring, but this type of solution is prone to problems such as high noise when releasing the spring. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a noise reduction structure for a veterinary electric needleless injector to solve the problem of excessive noise in existing electric needleless injectors.

[0006] This invention is implemented by constructing a noise reduction structure for a veterinary electric needleless injector, characterized by: a motor, a rotating worm gear with an inclined downward surface, a transmission bearing, and a spring connecting rod; the motor shaft is fixed to the rotating worm gear, the transmission bearing is tangent to the inclined surface of the rotating worm gear, and the transmission bearing is fixed to the spring connecting rod.

[0007] According to the noise reduction structure of the veterinary electric needleless injector described in this utility model, the motor rotates and drives the worm to rotate. The tangential surface between the worm and the bearing moves from the lower end to the higher end, and the spring connecting rod moves backward at the same time to compress the spring. After the worm moves to the highest point, it is driven down by the spring. The falling surface of the worm is a small-angle slope, which can effectively reduce the noise generated by excessive spring kinetic energy without affecting the liquid output of the injector nozzle.

[0008] According to the noise reduction structure of the veterinary electric needleless injector described in this utility model, the falling surface of the rotating worm connected to the motor has been increased by a small angle, which can effectively reduce the noise generated when the spring rebounds without affecting the liquid discharge from the nozzle.

[0009] The present invention has the following advantages: The present invention proposes a noise reduction method for a veterinary electric needleless injector, which provides a more optimized functional structure: by increasing the included angle of the falling surface of the worm gear rotating the motor, the noise generated when the spring rebounds can be effectively reduced without affecting the liquid output of the nozzle. Attached Figure Description

[0010] Fig. 1 This is a schematic diagram illustrating the overall structure and implementation of this application;

[0011] Fig. 2 This is a motion simulation diagram of this application;

[0012] Fig. 3 This is a schematic diagram of the worm gear descending the inclined plane in this application.

[0013] The components include: 1. Motor; 2. Rotating worm gear on the inclined downward surface; 3. Transmission bearing; 4. Spring connecting rod. Detailed Implementation

[0014] The following will be combined with the appendix Figs. 1-3 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0015] This utility model provides an improved noise reduction method for an electric needleless veterinary injector, thereby solving the problem of excessive noise in existing electric needleless injectors; such as Figs. 1-3 As shown, an improved transmission structure for an electric needle-free injector includes a motor 1, a rotating worm gear 2 on an inclined downward surface, a transmission bearing 3, and a spring connecting rod 4; as shown... Fig. 1 .

[0016] The assembly method of this utility model is as follows: the motor shaft is fixed to the rotating worm, the transmission bearing is tangent to the inclined surface of the worm, and the transmission bearing is fixed to the spring connecting rod.

[0017] like Fig. 2 As shown: When the motor rotates, it drives the worm to rotate (arrow ①). The tangential plane between the worm and the bearing moves from the lower end to the higher end, and the spring connecting rod moves backward at the same time to compress the spring (arrow ②). When the worm reaches its highest point, it is pulled down by the spring, and the worm's falling surface forms a small-angle slope. Fig. 3 (The plane where the arrow is located) can effectively reduce the noise caused by excessive spring kinetic energy without affecting the liquid output from the syringe nozzle.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The noise reduction method of the veterinary electric needleless injector proposed by the present invention provides a more optimized functional structure: the falling surface of the worm gear rotating by the motor is increased by a small angle, which can effectively reduce the noise generated when the spring rebounds without affecting the liquid discharge from the nozzle.

[0019] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A noise reduction structure for a veterinary electric needleless injector, characterized in that; It includes a motor (1), a rotating worm gear (2) on an inclined plane, a transmission bearing (3), and a spring connecting rod (4); the motor shaft is fixed to the rotating worm gear (2), the transmission bearing (3) is tangent to the inclined plane of the rotating worm gear (2), and the transmission bearing (3) is fixed to the spring connecting rod (4).

2. The noise reduction structure of the veterinary electric needleless injector according to claim 1, characterized in that; The rotation of the motor drives the rotating worm (2) to rotate. The tangential surface between the rotating worm (2) and the bearing moves from the lower end to the upper end, and the spring connecting rod (4) moves backward at the same time to compress the spring. After the rotating worm (2) moves to the highest point, it is driven down by the spring. The falling surface of the rotating worm (2) is a small-angle slope, which can effectively reduce the noise generated by excessive spring kinetic energy without affecting the liquid output of the syringe nozzle.

3. The noise reduction structure of the veterinary electric needleless injector according to claim 1, characterized in that; The falling surface of the rotating worm (2) connected to the motor (1) has an increased angle, which can effectively reduce the noise generated when the spring rebounds without affecting the liquid output of the nozzle.

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