Spraying device capable of being quickly connected with injector

Abstract

The utility model discloses a spraying device capable of being quickly connected with an injector, and particularly relates to the technical field of medical instruments, the spraying device comprises an injector body and a push handle arranged at the tail end of the injector body, and the end part of the injector body is detachably connected with a nozzle. A plug connected with the end portion of the injector body in an inserted mode is integrally formed at the tail end of the nozzle, a clamping sleeve is further installed at the end portion of the injector body, and an anti-skid rubber ring connected with the end portion of the injector body in an abutting mode is installed on the inner wall of the clamping sleeve. The nozzle mounting device has the advantages that the tail end of the connecting plate is pressed to be matched with the connecting lug to rotate, the tension spring is stretched, and after the plug abuts against the end of the clamping sleeve, the connecting plate rotates reversely through the tension of the tension spring, so that the clamping block is clamped with the clamping groove, the nozzle is mounted quickly, and the mounting efficiency is improved. When the injector body utilizes the push handle to enable the nozzle to spray mist, the nozzle can be effectively prevented from falling off under the action of pressure.

Description

Technical Field

[0001] The utility model relates to a spray device that can be quickly connected to a syringe, in particular to a spray device that can be quickly connected to a syringe, belonging to the technical field of medical devices. Background Technique

[0002] With the continuous development of medical technology, the treatment method of nasal sprayers has been welcomed by the public because of its low risk, fast treatment effect, and reduced pain. The nasal sprayer sprays the liquid medicine into the nasal cavity for treating various diseases in the nasal cavity. At present, the spray syringes on the market mainly consist of a syringe body and a nozzle body. However, when injecting the liquid medicine, the atomization effect of the liquid medicine of the spray syringes on the market is not good, and when the spray syringe is not in use, even if the push rod is not pushed, the liquid medicine inside the injection tube body is likely to slowly leak out through the nozzle body, resulting in waste of the liquid medicine and being not conducive to saving medical costs.

[0003] The nozzle of a spray syringe in the existing patent has a simple structure and is convenient to use. After the liquid medicine is shunted by the rubber layer inside the nozzle, it swirls inside the nozzle body, increasing the flow space of the liquid medicine, reducing the atomization resistance, and having a better atomization effect, and can perform equal-dose and quantitative treatment on both nasal cavities.

[0004] However, the nozzle body in the patent with the authorization number CN206548948U is connected to the end of the syringe by means of plugging. This connection method is likely to cause the nozzle body to fall off under the condition of the inner pressure of the syringe, thus affecting the normal use of the nozzle body. Therefore, we propose a spray device that can be quickly connected to a syringe. Content of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a spray device that can be quickly connected to a syringe.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design a spray device that can be quickly connected to a syringe, including a syringe body and a push handle installed at the end of the syringe body. The end part of the syringe body is detachably connected with a nozzle, and a plug integrally formed at the end of the nozzle is inserted and connected with the end part of the syringe body;

[0008] A ferrule is also installed at the end part of the syringe body. An anti-slip rubber ring that abuts against the end part of the syringe body is installed on the inner wall of the ferrule, and a card slot is opened on the outer wall of the ferrule;

[0009] Two groups of connecting ears are symmetrically and fixedly connected to the outer wall of the nozzle, and each group of connecting ears is symmetrically provided with two. A connecting plate is rotatably connected between the two connecting ears. One end of the connecting plate close to the ferrule is integrally formed with a clamping block that engages with the clamping groove. A tension spring is arranged between the connecting plate and the plug.

[0010] Preferably, a sealing rubber ring sleeved on the end part of the syringe body is arranged on one side of the ferrule, and the sealing rubber ring abuts against the inner wall of the plug.

[0011] Preferably, a shaft head rotatably connected to the connecting ear is fixedly connected to the side wall part of the connecting plate corresponding to the connecting ear.

[0012] Preferably, a bearing is installed at the joint of the connecting ear and the shaft head.

[0013] Preferably, one end of the connecting plate away from the clamping block is angled.

[0014] Preferably, one end of the tension spring is connected to the connecting plate, and the other end of the tension spring is connected to the outer wall of the plug.

[0015] A spray device capable of being quickly connected to a syringe proposed by the present utility model has the following beneficial effects:

[0016] 1. Install the ferrule at the end part of the syringe body, and use the anti-slip rubber ring to increase the friction force at the joint with the end part of the syringe body to prevent the ferrule from falling off. Then, use the plug to insert and connect the nozzle to the end part of the syringe body. By pressing the end of the connecting plate, it rotates in cooperation with the connecting ear, and the tension spring is stretched. After the plug abuts against the end of the ferrule, use the pulling force of the tension spring to make the connecting plate rotate in the reverse direction, so that the clamping block engages with the clamping groove, and the nozzle is quickly installed. At the same time, when the syringe body uses the push handle to make the nozzle spray, it can effectively prevent the nozzle from falling off under the action of pressure.

[0017] 2. After installing the ferrule, sleeved the sealing rubber ring on the end part of the syringe body. When installing the nozzle, the inner wall of the plug abuts against the sealing rubber ring, which can effectively prevent the leakage of the liquid medicine by filling the gap. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of a spray device capable of being quickly connected to a syringe proposed by the present utility model;

[0019] Figure 2 is the structural schematic diagram of the end part of the syringe body of a spray device capable of being quickly connected to a syringe proposed by the present utility model;

[0020] Figure 3An enlarged schematic view of part A of a spray device that can be quickly connected to a syringe proposed by the present utility model;

[0021] Figure 4 A schematic structural view of the nozzle of a spray device that can be quickly connected to a syringe proposed by the present utility model.

[0022] In the figure: 1, syringe body; 2, nozzle; 3, sealing rubber ring; 4, ferrule; 5, anti-slip rubber ring; 6, card slot; 7, plug; 8, connecting ear; 9, connecting plate; 10, shaft head; 11, clamping block; 12, tension spring; 13, push handle. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Referring to Figures 1-4 , a spray device that can be quickly connected to a syringe, including a syringe body 1 and a push handle 13 installed at the end of the syringe body 1. The end part of the syringe body 1 is detachably connected with a nozzle 2, and a plug 7 that is integrally formed at the end of the nozzle 2 and is inserted and connected to the end part of the syringe body 1;

[0025] A ferrule 4 is also installed at the end part of the syringe body 1. An anti-slip rubber ring 5 that abuts against the end part of the syringe body 1 is installed on the inner wall of the ferrule 4, and a card slot 6 is opened on the outer wall of the ferrule 4;

[0026] Two groups of connecting ears 8 are symmetrically and fixedly connected to the outer wall of the nozzle 2, and each group of connecting ears 8 is symmetrically provided with two. A connecting plate 9 is rotatably connected between the two connecting ears 8. A clamping block 11 that is engaged with the card slot 6 is integrally formed at one end of the connecting plate 9 close to the ferrule 4. A tension spring 12 is arranged between the connecting plate 9 and the plug 7;

[0027] It should be noted that when the spray device that can be quickly connected to the syringe is in use, the ferrule 4 is installed at the end part of the syringe body 1, and the anti-slip rubber ring 5 is used to increase the friction force at the joint part with the end part of the syringe body 1 to prevent the ferrule 4 from falling off. Then, the plug 7 is used to make the nozzle 2 inserted and connected to the end part of the syringe body 1, and the end of the connecting plate 9 is pressed to make it rotate in cooperation with the connecting ear 8, and the tension spring 12 is stretched. After the plug 7 abuts against the end of the ferrule 4, the tension of the tension spring 12 is used to make the connecting plate 9 rotate in the reverse direction, so that the clamping block 11 is engaged with the card slot 6, and the nozzle 2 is quickly installed. At the same time, when the syringe body 1 uses the push handle 13 to make the nozzle 2 spray, it can effectively prevent the nozzle 2 from falling off under the action of pressure.

[0028] Such asFigure 3 , Figure 4 As shown in Figure 4 , a sealing rubber ring 3 sleeving the end part of the syringe body 1 is arranged on one side of the ferrule 4, and the sealing rubber ring 3 abuts against the inner wall of the plug 7;

[0029] It should be noted that after installing the ferrule 4, the sealing rubber ring 3 is sleeved on the end part of the syringe body 1. When installing the nozzle 2, the inner wall of the plug 7 abuts against the sealing rubber ring 3, and the gap filling can effectively prevent the leakage of the liquid medicine.

[0030] As Figure 4 shown in Figure 4 , a shaft head 10 rotatably connected to the connecting ear 8 is fixedly connected to the side wall part of the connecting plate 9 corresponding to the connecting ear 8, and a bearing is installed at the joint of the connecting ear 8 and the shaft head 10;

[0031] It should be noted that the friction between the shaft head 10 and the connecting ear 8 is reduced, and the rotation accuracy of the connecting plate 9 is ensured.

[0032] As Figure 4 shown in Figure 4 , one end of the connecting plate 9 away from the clamping block 11 is arranged at an angle, one end of the tension spring 12 is connected to the connecting plate 9, and the other end of the tension spring 12 is connected to the outer wall of the plug 7;

[0033] It should be noted that it is beneficial to press the connecting plate 9 through the end of the connecting plate 9, and the tension of the tension spring 12 is used to facilitate the quick disassembly and assembly of the nozzle 2.

[0034] Working principle: When in use, the ferrule 4 is installed at the end part of the syringe body 1, and the anti-slip rubber ring 5 is used to increase the friction at the joint part of the end of the syringe body 1 to prevent the ferrule 4 from falling off. Then, the nozzle 2 is inserted and connected to the end part of the syringe body 1 by using the plug 7. By pressing the end of the connecting plate 9, it rotates in cooperation with the connecting ear 8, and the tension spring 12 is stretched. After the plug 7 abuts against the end of the ferrule 4, the tension of the tension spring 12 makes the connecting plate 9 rotate in the reverse direction, so that the clamping block 11 is engaged with the clamping groove 6, and the nozzle 2 is quickly installed.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A spray device that can be quickly connected to a syringe, comprising a syringe body (1) and a push handle (13) mounted at the end of the syringe body (1), characterized in that: The end of the syringe body (1) is detachably connected to a nozzle (2), and the end of the nozzle (2) is integrally formed with a plug (7) that is plug-connected to the end of the syringe body (1); The end of the syringe body (1) is also provided with a ferrule (4), the inner wall of the ferrule (4) is provided with a non-slip rubber ring (5) abutting against the end of the syringe body (1), and the outer wall of the ferrule (4) is provided with a ferrule groove (6); The outer wall of the nozzle (2) is symmetrically fixedly connected with two groups of connecting ears (8), and each group of connecting ears (8) is symmetrically provided with two, and a connecting plate (9) is rotatably connected between the two connecting ears (8), and a card block (11) that engages with the card slot (6) is integrally formed at one end of the connecting plate (9) close to the card sleeve (4), and a tension spring (12) is provided between the connecting plate (9) and the plug (7).

2. A spray device that can be quickly connected to a syringe according to claim 1, characterized in that: A sealing rubber ring (3) is provided on one side of the ferrule (4) and is sleeved on the end of the syringe body (1), and the sealing rubber ring (3) is in contact with the inner wall of the plug (7).

3. A spray device that can be quickly connected to a syringe according to claim 1, characterized in that: The connecting plate (9) is fixedly connected to a side wall portion corresponding to the connecting ear (8) with a shaft head (10) which is rotatably connected to the connecting ear (8).

4. A spray device that can be quickly connected to a syringe according to claim 3, characterized in that: A bearing is installed at the portion where the connecting ear (8) and the shaft head (10) are combined.

5. A spray device that can be quickly connected to a syringe according to claim 1, characterized in that: One end of the connecting plate (9) away from the clamping block (11) is arranged at an angle.

6. A spray device that can be quickly connected to a syringe according to claim 1, characterized in that: One end of the tension spring (12) is connected to the connecting plate (9), and the other end of the tension spring (12) is connected to the outer wall of the plug (7).

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