Medicine spray gun

Abstract

The utility model discloses a medicine spray gun which comprises a gun barrel and a spray cavity formed in the gun barrel and used for spraying medicine liquid, and further comprises an installation rod fixedly connected with the gun barrel, an adjusting rod is installed in a sliding cavity in the installation rod in a sliding mode and extends to the outer portion of the sliding cavity, and an air channel is formed in the adjusting rod. A cleaning exhaust hole is formed in the inner wall of the spraying cavity, an air inlet pipe is arranged on the outer surface of the mounting rod, and a cleaning air outlet hole communicating with the cleaning exhaust hole and a cleaning air inlet hole communicating with the air inlet pipe are formed in the inner wall of the air path channel along with sliding of the adjusting rod in the sliding cavity. The cleaning gun has the advantages that after the cleaning gun is used, the adjusting rod is slid to drive the cleaning air outlet hole and the cleaning air inlet hole to move, so that the cleaning air outlet hole is communicated with the cleaning exhaust hole, the cleaning air inlet hole is communicated with the air inlet pipe, and air from the air inlet pipe enters the spraying cavity of the gun barrel; therefore, the residual liquid medicine in the spraying cavity is sprayed out.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to a medicine spray gun. Background Art

[0002] Before examining the patient's nasal cavity and throat, otolaryngologists often need to use a spray gun filled with liquid medicine to spray mucosal astringent or anesthetic into the patient's nasal cavity and throat. Since the rod of the spray head is long and the inner diameter is thin, when the spray gun is not in use (after get off work), the medicine remaining in the internal pipe of the spray head often forms crystals and blocks the spray rod, making it unusable. For this reason, we provide a drug spray gun to solve the above problem. Utility Model Content

[0003] The utility model aims to overcome the disadvantages of the prior art and provide a medicine spray gun.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A medicine spray gun comprises a gun rod and a spray chamber for spraying medicine liquid therein, and also comprises a mounting rod fixedly connected to the gun rod, an adjusting rod is slidably mounted in the sliding chamber inside the mounting rod and extends to the outside of the sliding chamber, an air path is provided inside the adjusting rod, a clean exhaust hole is provided on the inner wall of the spray chamber, an air inlet pipe is provided on the outer surface of the mounting rod, and a clean exhaust hole connected to the clean exhaust hole and a clean air inlet hole connected to the air inlet pipe are provided on the inner wall of the air path.

[0006] Preferably, it also includes a medicine bottle for containing medicine liquid, a medicine discharge pipe for circulating medicine liquid is arranged between the medicine bottle and the spray chamber, the bottom of the medicine bottle is located below the medicine liquid surface, a spray air outlet pipe is arranged between the medicine bottle and the mounting rod, the bottom of the spray air outlet pipe is located above the medicine liquid surface, and the inner wall of the air path channel is provided with a spray air outlet hole connected with the spray air outlet pipe as the adjusting rod slides, and a spray air inlet hole connected with the air inlet pipe.

[0007] Preferably, a spring is provided in the sliding cavity inside the mounting rod, the spring is located between the adjusting rod and the side wall of the sliding cavity, and a clamping structure is installed on the outer surface of the adjusting rod away from the spring to prevent the adjusting rod from escaping from the sliding cavity.

[0008] Preferably, the clamping structure includes an elastic clamping rod fixedly mounted on the outer surface of the adjusting rod away from the spring, a buckle is provided at the end of the clamping rod, and also includes a clamping block assembly fixedly mounted on the outer surface of the mounting rod and adapted to the buckle.

[0009] Preferably, the clamping block assembly comprises a first clamping block, a second clamping block and a third clamping block fixedly arranged on the outer surface of the mounting rod, and all three are provided with an inclined guide surface for facilitating clamping with the buckle.

[0010] Preferably, a button is provided on the end surface of the adjusting rod away from the spring.

[0011] Preferably, the clamping rod and the buckle are integrally formed.

[0012] The utility model has the following advantages:

[0013] 1. After use, the utility model slides the adjustment rod to drive the clean air outlet and the clean air inlet to move, so that the clean air outlet is connected with the clean air exhaust hole and the clean air inlet is connected with the air inlet pipe. The air from the air inlet pipe enters the spray chamber of the gun barrel through the channel formed by the clean air inlet hole, the air path, the clean air outlet and the clean air exhaust hole, so that the residual liquid in the spray chamber is sprayed out, thereby preventing the residual liquid from staying in the spray chamber for too long and causing crystallization, resulting in blockage and inability to use.

[0014] 2. When the utility model needs to be used, the adjustment rod slides in the sliding cavity to drive the spray medicine outlet hole and the spray medicine inlet hole to move, so that the spray medicine outlet hole is connected with the inlet of the spray medicine outlet pipe and the spray medicine inlet hole is connected with the air inlet pipe. At this time, the adjustment rod closes the inlet of the clean exhaust hole, and the high-pressure gas from the air inlet pipe enters the medicine liquid bottle through the passage formed by the spray medicine inlet hole, the air path, the spray medicine outlet hole and the spray medicine outlet pipe. The gas continues to enter the medicine liquid bottle to increase the internal air pressure. Under the action of pressure, the medicine liquid is transported to the spray cavity in the gun barrel through the medicine liquid discharge pipe to realize the spraying of the medicine liquid.

[0015] 3. The utility model prevents the adjustment rod from being separated from the sliding cavity through the clamping structure, thus playing a role in fixed position limitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model in the initial state of the first gear.

[0017] Figure 2 This is a schematic diagram of the overall structure of the utility model when in use at the second gear position.

[0018] Figure 3 It is a schematic diagram of the overall structure of the utility model in the third gear cleaning state.

[0019] Figure 4 For the utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0020] Figure 5 For the utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0021] Figure 6 For the utility model Figure 3 Enlarged schematic diagram at point C in the middle.

[0022] In the figure, 1. gun barrel; 2. mounting rod; 3. adjusting rod; 4. air path; 5. cleaning exhaust hole; 6. cleaning air inlet hole; 7. cleaning air outlet hole; 8. air inlet pipe; 9. spraying air outlet pipe; 10. spraying air outlet hole; 11. spraying air inlet hole; 12. spring; 13. clamping structure; 131. clamping rod; 132. buckle; 133. clamping block assembly; 1331. first clamping block; 1332. second clamping block; 1333. third clamping block; 14. liquid medicine bottle; 15. liquid medicine discharge pipe; 16. button. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1 — Figure 6 The embodiment shown.

[0026] A medicine spray gun comprises a gun barrel 1 and a spray chamber for spraying medicine liquid therein, and also comprises a mounting rod 2 fixedly connected to the gun barrel 1, an adjusting rod 3 is slidably mounted in a sliding chamber inside the mounting rod 2 and extends to the outside of the sliding chamber, an air path 4 is provided inside the adjusting rod 3, a clean exhaust hole 5 is provided on the inner wall of the spray chamber, an air inlet pipe 8 is provided on the outer surface of the mounting rod 2, and a clean outlet hole 7 connected to the clean exhaust hole 5 as the adjusting rod 3 slides in the sliding chamber, and a clean air inlet hole 6 connected to the air inlet pipe 8 is provided on the inner wall of the air path 4.

[0027] See also Figure 1 and Figure 4 As shown, after use, the slidable adjustment rod 3 drives the clean air inlet hole 6 and the clean air outlet hole 7 opened on the inner wall of the air path channel 4 to move. After reaching the predetermined position, the clean air inlet hole 6 is connected with the air inlet pipe 8, and the clean air outlet hole 7 is connected with the clean exhaust hole 5. At this time, the high-pressure air from the air inlet pipe 8 is transmitted to the spray chamber of the gun barrel 1 through the passage formed by the clean air inlet hole 6, the air path channel 4, the clean air outlet hole 7 and the clean exhaust hole 5, thereby discharging the residual liquid in the spray chamber to prevent the residual liquid from crystallizing in the spray chamber and blocking the outlet and making it unusable.

[0028] It also includes a medicine bottle 14 for containing medicine liquid, a medicine discharge pipe 15 for circulating medicine liquid is arranged between the medicine bottle 14 and the spray chamber, the bottom of the medicine bottle 14 is located below the medicine liquid surface, a spray air outlet pipe 9 is arranged between the medicine bottle 14 and the mounting rod 2, the bottom of the spray air outlet pipe 9 is located above the medicine liquid surface, and the inner wall of the air path channel 4 is provided with a spray air outlet hole 10 connected with the spray air outlet pipe 9 as the adjusting rod 3 slides, and a spray air inlet hole 11 connected with the air inlet pipe 8.

[0029] See also Figure 2 and Figure 5 As shown, when it is necessary to spray medicine on the patient, it is only necessary to slide the adjustment rod 3 to drive the medicine spray outlet hole 10 and the medicine spray inlet hole 11 to move. After moving to the predetermined position, the medicine spray outlet hole 10 is connected with the medicine spray outlet pipe 9 and the medicine spray inlet hole 11 is connected with the air inlet pipe 8. At this time, the clean exhaust hole 5 is disconnected from the clean exhaust hole 7, and the entrance of the clean exhaust hole 5 is blocked and closed. At this time, the gas from the air inlet pipe 8 enters the medicine spray outlet pipe 9 through the air path formed by the medicine spray inlet hole 11, the air path channel 4 and the medicine spray outlet hole 10, and then enters the medicine liquid bottle 14 through the medicine spray outlet pipe 9. As the gas continues to enter the medicine liquid bottle 14, the gas pressure in the medicine liquid bottle 14 increases. Under the action of pressure, the medicine liquid in the medicine liquid bottle 14 enters the spray chamber in the gun barrel 1 through the medicine liquid discharge pipe 15. Since the clean exhaust hole 5 has been closed, the medicine liquid entering the spray chamber in the gun barrel 1 can only be sprayed out from the outlet, thereby achieving the effect of spraying.

[0030] A spring 12 is provided in the sliding cavity inside the installation rod 2, and the spring 12 is located between the adjustment rod 3 and the side wall of the sliding cavity. A clamping structure 13 is installed on the outer surface of the adjustment rod 3 away from the spring 12 to prevent the adjustment rod 3 from escaping from the sliding cavity.

[0031] See also Figures 1 to 6As shown, in order to ensure that the position of the adjusting rod 3 in the sliding cavity is fixed, the spring 12 gives the adjusting rod 3 an outward sliding force, and then the sliding of the adjusting rod 3 is blocked by the clamping structure 13. Under the interaction of the spring 12 and the clamping structure 13, the position of the adjusting rod 3 can be fixed. Specifically, when the adjusting rod 3 slides a certain distance, the clamping structure 13 is clamped to the corresponding position, thereby fixing the adjusting rod 3. The details can be seen below.

[0032] The clamping structure 13 includes an elastic clamping rod 131 fixedly mounted on the outer surface of the adjusting rod 3 away from the spring 12, a buckle 132 is provided at the end of the clamping rod 131, and also includes a clamping block assembly 133 fixedly mounted on the outer surface of the mounting rod 2 and adapted to the buckle 132; the clamping rod 131 and the buckle 132 are integrally formed.

[0033] The clamping block assembly 133 includes a first clamping block 1331 , a second clamping block 1332 and a third clamping block 1333 fixedly disposed on the outer surface of the mounting rod 2 , and all of the three are provided with an inclined guide surface for easy clamping with the buckle 132 .

[0034] See also Figures 1 to 6 As shown, in this embodiment, it is divided into three gears, namely corresponding to the first clamping block 1331, the second clamping block 1332 and the third clamping block 1333. In the initial state, i.e. the first gear, the cleaning exhaust hole 5, the air inlet pipe 8 and the spraying outlet pipe 9 are in a closed state under the blocking of the outer surface of the adjusting rod 3. At this time, the buckle 132 at the end of the clamping rod 131 is clamped into the first clamping block 1331 to fix the position of the adjusting rod 3 and prevent the adjusting rod 3 from escaping from the sliding cavity.

[0035] like Figure 5 As shown, when it is needed, since the buckle 132 moves to the position of the second block 1332 as the adjusting rod 3 moves from the initial state, it is in the second gear position at this time, and the spraying air outlet 10 is connected with the spraying air outlet pipe 9 and the spraying air inlet 11 is connected with the air inlet pipe 8, the cleaning exhaust hole 5 is closed, and the passage formed by the spraying air inlet 11, the air passage 4 and the spraying air outlet 10 is filled with gas to realize the spraying of the liquid medicine.

[0036] like Figure 6 As shown, after use, the buckle 132 continues to move from the second gear position of the use state to the third block 1333 position along with the adjustment rod 3. At this time, it is the third gear position. In the third gear position, the cleaning air inlet 6 is connected with the air inlet pipe 8 and the cleaning exhaust hole 5 is connected with the cleaning air outlet 7. At this time, the spraying air outlet pipe 9 is closed, and the passage formed by the cleaning air inlet 6, the air path 4, the cleaning air outlet 7 and the cleaning exhaust hole 5 allows high-pressure gas to enter the spray chamber of the gun barrel 1, so as to clean the spray chamber.

[0037] Since the clamping rod 131 has a certain elasticity, a certain degree of elastic deformation can occur, so that the buckle 132 can switch between the first block 1331, the second block 1332 and the third block 1333. After cleaning is completed in the third gear, the clamping rod 131 can be pushed upward to make the buckle 132 disengage from the third block 1333, and the adjusting rod 3 can slide outward under the elastic force of the spring 12. The buckle 132 at the end of the clamping rod 131 is manually controlled to the position of the first block 1331, that is, the first gear in the initial state, to prepare for the next use.

[0038] The end surface of the adjusting rod 3 away from the spring 12 is provided with a button 16; Figures 1 to 6 It can be seen that when driving the adjusting rod 3 to move, the pressing force can be transmitted to the adjusting rod 3 by pressing the button 16, thereby driving the adjusting rod 3 to overcome the elastic force of the spring 12 and move in the sliding cavity of the mounting rod 2, and driving the buckle 132 at the end of the clamping rod 131 to be respectively clamped into the position of the first clamping block 1331 or the second clamping block 1332 or the third clamping block 1333 as needed, thereby realizing the switching of different functions of the first gear, the second gear and the third gear.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drug spray gun, characterized in that: The invention comprises a gun rod (1) and a spray chamber for spraying liquid therein, and also comprises a mounting rod (2) fixedly connected to the gun rod (1), an adjusting rod (3) being slidably mounted in the sliding chamber inside the mounting rod (2) and extending to the outside of the sliding chamber, an air path (4) being provided inside the adjusting rod (3), a clean exhaust hole (5) being provided on the inner wall of the spray chamber, an air inlet pipe (8) being provided on the outer surface of the mounting rod (2), and a clean exhaust hole (7) being connected to the clean exhaust hole (5) and a clean inlet hole (6) being connected to the air inlet pipe (8) being provided on the inner wall of the air path (4).

2. A drug spray gun according to claim 1, characterized in that: It also includes a medicine bottle (14) for containing medicine liquid, a medicine liquid discharge pipe (15) for circulating medicine liquid is arranged between the medicine bottle (14) and the spray chamber, the bottom of the medicine bottle (14) is located below the level of the medicine liquid, a medicine spray air outlet pipe (9) is arranged between the medicine bottle (14) and the mounting rod (2), the bottom of the medicine spray air outlet pipe (9) is located above the level of the medicine liquid, and the inner wall of the air passage (4) is provided with a medicine spray air outlet hole (10) which is connected to the medicine spray air outlet pipe (9) as the adjusting rod (3) slides, and a medicine spray air inlet hole (11) which is connected to the air inlet pipe (8).

3. A medicine spray gun according to claim 1, characterized in that: A spring (12) is arranged in the sliding cavity inside the installation rod (2); the spring (12) is located between the adjustment rod (3) and the side wall of the sliding cavity; and a clamping structure (13) is installed on the outer surface of the adjustment rod (3) away from the spring (12) to prevent the adjustment rod (3) from escaping from the sliding cavity.

4. A medicine spray gun according to claim 3, characterized in that: The clamping structure (13) comprises an elastic clamping rod (131) fixedly mounted on the outer surface of the adjusting rod (3) in a direction away from the spring (12), a buckle (132) being provided at the end of the clamping rod (131), and also comprises a clamping block assembly (133) fixedly mounted on the outer surface of the mounting rod (2) and adapted to the buckle (132).

5. A medicine spray gun according to claim 4, characterized in that: The clamping block assembly (133) comprises a first clamping block (1331), a second clamping block (1332) and a third clamping block (1333) which are fixedly arranged on the outer surface of the mounting rod (2), and all three are provided with an inclined guide surface for facilitating clamping with the buckle (132).

6. A medicine spray gun according to claim 3, characterized in that: A button (16) is arranged on the end surface of the adjusting rod (3) away from the spring (12).

7. A medicine spray gun according to claim 4, characterized in that: The clamping rod (131) and the buckle (132) are integrally formed.

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