Device for detecting air tightness of doser

Abstract

The utility model is suitable for the field of medical equipment, and provides a doser air tightness detection device comprising the following structures: a pedestal provided with an air inlet and an air outlet, and the air outlet is provided with a mounting groove; a first sealing element and an abutting element; wherein the air inlet is further provided with a one-way valve, the air inlet is communicated with the one-way valve, a barometer is further arranged between the one-way valve and the air inlet, the medicine adding device is installed in the installation groove, an outlet of the medicine adding device is aligned with the air outlet of the base, the abutting piece is installed on the base, and the abutting piece abuts against the medicine adding device at the same time. The outlet of the doser abuts against the first sealing piece to form a sealing face, a closed containing cavity is formed among the doser, the base and the one-way valve, then after high-pressure gas is introduced into the gas source, the high-pressure gas is locked in the closed containing cavity through the one-way valve, at the moment, if the barometer is kept stable, the gas tightness of the doser is good, and if the barometer cannot be kept stable, the gas tightness is good. The whole detection process is simple, the operation is simple and convenient, and the efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment, and in particular relates to an air tightness detection device for a medicine adding device. Background Art

[0002] There will be processing errors in the manufacturing process of the doser, and the quality of the produced doser is inconsistent. When the doser leaks during use, it will cause waste of anesthetics, environmental pollution, and threaten the health of medical staff. Therefore, the air tightness detection of the doser is very important. Because of the different dosing equipment required, various dosers are derived. If the outlet of the doser is set on the side instead of the normal bottom, the conventional doser detection device cannot be adapted for detection. Utility Model Content

[0003] The embodiment of the utility model provides a device for detecting air tightness of a doser, aiming to solve the problem of detecting air tightness of a doser in the prior art.

[0004] The utility model also provides a device for detecting air tightness of a doser, comprising: a base, the base is provided with an air inlet and an air outlet, the air inlet is communicated with the air outlet, a mounting groove is provided at the air outlet, a doser is installed in the mounting groove, and the doser outlet is connected to the air outlet;

[0005] A first sealing member, the first sealing member is arranged at the connection between the gas outlet and the dosing device outlet, and the first sealing member is provided with a connecting hole connecting the dosing device outlet and the gas outlet;

[0006] A push-up member, the push-up member is arranged on a side of the mounting groove away from the air outlet, the push-up member abuts against the doser, so that the doser abuts against the first sealing member;

[0007] Wherein, the air inlet is also provided with a one-way valve, the air inlet is communicated with the one-way valve, and a barometer is also provided between the one-way valve and the air inlet.

[0008] In some embodiments, the abutting member includes a pressing plate and a threaded plug, wherein the pressing plate is disposed on the base, a threaded hole corresponding to the position of the air outlet is provided on the pressing plate, and the threaded plug is disposed on the threaded hole.

[0009] In some embodiments, a first groove is provided on the side of the pressure plate facing the dosing device, and the first groove is arranged at the threaded hole. An elastic limiter is sleeved on the threaded plug, one end of the elastic limiter abuts against the bottom of the first groove, and the other end is connected to the threaded plug. The outer diameter of the elastic limiter is larger than the aperture of the threaded hole.

[0010] In some embodiments, a second groove is provided at the air outlet, the first sealing member is disposed in the second groove, and a shape of the second groove matches a shape of the first sealing member.

[0011] In some embodiments, the second groove depth is less than or equal to the first seal thickness.

[0012] In some embodiments, a limit block is further provided in the installation slot, and the limit block is used to limit the distance that the dosing device is inserted into the installation slot.

[0013] In some embodiments, a quick connector is also provided at the air inlet.

[0014] In some embodiments, a second sealing member is provided at the connection between the air inlet and the quick connector.

[0015] In some embodiments, the mounting groove is provided with chamfers at both ends of the inlet and outlet of the direction in which the dosing device moves.

[0016] In some embodiments, a handle is provided on the end of the threaded plug away from the thread.

[0017] The beneficial effects achieved by the utility model are as follows: when performing air tightness detection, the doser is installed in the installation groove, the outlet of the doser is aligned with the air outlet of the base, the abutting piece is installed on the base, and the abutting piece abuts the doser at the same time, so that the outlet of the doser abuts against the first sealing piece and forms a sealing surface, so that a closed cavity is formed between the doser, the base and the one-way valve, and then after the air source introduces high-pressure gas, the one-way valve locks the high-pressure gas in the closed cavity. At this time, if the pressure gauge remains stable, it means that the air tightness of the doser is good. If it cannot remain stable, it proves that the air tightness of the doser is unqualified. The entire detection process is simple, easy to operate and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an air tightness detection device for a doser provided in an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional view of an air tightness detection device for a dosing device provided by an embodiment of the utility model;

[0020] Figure 3 It is a partial enlarged view of an air tightness detection device for a dosing device provided by an embodiment of the utility model;

[0021] Figure 4 It is a gas circuit diagram of a dosing device air tightness detection device provided by an embodiment of the utility model;

[0022] Figure 5 A cross-sectional view of a base of an air tightness detection device for a doser provided in an embodiment of the utility model.

[0023] Reference numerals

[0024] 100, dosing device; 200, base; 201, air inlet; 202, air outlet; 203, mounting groove; 204, first groove; 205, second groove; 206, threaded hole; 210, first sealing member; 220, quick connector; 230, limit block; 300, pressure plate; 310, threaded plug; 400, barometer; 500, one-way valve; 600, elastic limit member. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use scenarios of other materials.

[0030] Embodiment 1

[0031] Combination Figures 1 to 5 As shown, the present application provides a device for detecting air tightness of a doser, comprising:

[0032] A base 200, wherein the base 200 is provided with an air inlet 201 and an air outlet 202, the air inlet 201 and the air outlet 202 are communicated, a mounting groove 203 is provided at the air outlet 202, the doser 100 is installed in the mounting groove 203, and the outlet of the doser 100 is connected to the air outlet 202;

[0033] A first sealing member 210, which is disposed at the connection between the gas outlet 202 and the outlet of the doser 100, and a connecting hole connecting the outlet of the doser 100 and the gas outlet 202 is disposed on the first sealing member 210;

[0034] The push-up member is arranged on the side of the doser 100 away from the air outlet 202, and the push-up member abuts against the doser 100, so that the doser 100 abuts against the first sealing member 210; wherein, the air inlet 201 is also provided with a one-way valve 500, and the air inlet 201 is connected to the one-way valve 500.

[0035] A barometer 400 is also provided between the one-way valve 500 and the air inlet 201; when performing air tightness testing, the doser 100 is installed in the installation groove 203, the outlet of the doser 100 is aligned with the air outlet 202 of the base 200, and the abutment is installed on the base 200, and the abutment simultaneously abuts against the doser 100, so that the outlet of the doser 100 abuts against the first sealing member 210 and forms a sealing surface, so that a closed cavity is formed between the doser 100, the base 200, and the one-way valve 500, and then the air source is introduced with high-pressure gas, and when the ventilation reaches a preset pressure value (usually the preset pressure value is when the barometer 400 reading reaches 50Kpa), the ventilation is stopped. The one-way valve 500 locks the high-pressure gas in the closed cavity. At this time, if the barometer 400 reading does not change, it means that the doser 100 has good air tightness. If the barometer 400 reading changes. , it is proved that the air tightness of the dosing device 100 is unqualified. The whole detection process is simple, easy to operate and efficient.

[0036] Specifically, the first sealing member 210 is an elastic sealing gasket, which has a large deformation capacity and good adhesion, and is conducive to forming an effective sealing surface with the dosing device 100, reducing gas leakage and reducing detection errors.

[0037] Furthermore, the abutting member includes a pressing plate 300 and a threaded plug 310. The pressing plate 300 is disposed on the base 200. The pressing plate 300 and the base 200 may be fixedly connected or detachably connected. The pressing plate 300 is provided with a threaded hole 206 corresponding to the position of the air outlet 202. The threaded plug 310 is disposed in the threaded hole 206. The threaded plug 310 can effectively adjust the abutting pressure through the threaded hole 206, thereby adjusting the pressure between the dosing device 100 and the first sealing member 210.

[0038] Furthermore, a first groove 204 is provided on the side of the pressure plate 300 facing the doser 100, and the first groove 204 is arranged at the threaded hole 206. An elastic limiter 600 is sleeved on the threaded plug 310, and one end of the elastic limiter 600 abuts against the bottom of the first groove 204, and the other end is connected to the threaded plug 310. The outer diameter of the elastic limiter 600 is larger than the aperture of the threaded hole 206.

[0039] Since the outer diameter of the elastic stopper 600 is larger than the aperture of the threaded hole 206, the elastic stopper 600 cannot be disengaged from the threaded hole 206. The elastic stopper 600 is in a compressed state. When the threaded plug 310 is tightened toward the installation slot 203, the compression amount of the elastic stopper 600 decreases, but it is still clamped on the threaded plug 310. When the threaded plug 310 moves away from the installation slot 203, the compression amount of the elastic stopper 600 increases, thereby preventing the threaded plug 310 from being loosened due to excessive twisting, thereby improving installation efficiency.

[0040] Furthermore, a second groove 205 is provided at the air outlet 202, and the shape of the second groove 205 matches the shape of the first sealing member 210, so that the first sealing member 210 is hidden in the second groove 205, thereby preventing the dosing device 100 from colliding with the first sealing member 210 in the installation groove 203, thereby improving the detection efficiency.

[0041] Furthermore, the depth of the second groove 205 is less than or equal to the thickness of the first sealing member 210, so as to prevent the second groove 205 from pushing open the dosing device 100, separating the dosing device 100 and the first sealing member 210, and thus preventing the sealing surface from being formed.

[0042] Furthermore, a limit block 230 is provided in the installation slot 203. The limit block 230 is used to limit the distance of the dosing device 100 inserted into the installation slot 203. The limit block 230 fixes the insertion distance of the dosing device 100, thereby improving the detection efficiency of the user.

[0043] Furthermore, a quick connector 220 is provided at the air inlet 201. The quick connector 220 is a commonly used connector on pipelines and is provided with a quick-change structure, which can be quickly disassembled or installed, making it convenient to replace pipelines or tooling.

[0044] Furthermore, a second seal (not shown in the figure) is provided at the connection between the base of the air inlet 201 and the quick connector 220 to improve the sealing performance. Specifically, the second seal can be a sealing gasket, a sealing ring, or other common seals. If the second seal is a sealing gasket, it is provided on the connection end face between the base and the quick connector 220 to perform end face sealing; if the second seal is a sealing ring, it is provided at the connection position between the inner wall of the air inlet 201 on the base and the quick connector 220 to perform radial sealing.

[0045] Furthermore, the mounting groove 203 is provided with chamfers at both ends of the entry and exit in the direction of movement of the dosing device 100 , and the chamfers have a guiding function, making it easier for the dosing device 100 to enter the base 200 .

[0046] Furthermore, a handle is provided on the end of the threaded plug away from the thread. One end of the threaded plug is a thread, the end face of the thread can abut against the dosing device, and the other end is provided with a handle, which is convenient for human hand grasping and manual operation of the threaded plug.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting air tightness of a doser, characterized in that: include: A base, wherein the base is provided with an air inlet, an air outlet and a mounting groove, the air inlet is communicated with the air outlet, the mounting groove is arranged on a side close to the air outlet, a doser is installed in the mounting groove, and an outlet of the doser is communicated with the air outlet; A first sealing member, the first sealing member is arranged at the connection between the gas outlet and the dosing device outlet, and the first sealing member is provided with a connecting hole connecting the dosing device outlet and the gas outlet; A push-up member, the push-up member is arranged on a side of the mounting groove away from the air outlet, the push-up member abuts against the doser, so that the doser abuts against the first sealing member; Wherein, the air inlet is also provided with a one-way valve, the air inlet is communicated with the one-way valve, and a barometer is also provided between the one-way valve and the air inlet.

2. The air tightness detection device of a dosing device according to claim 1, characterized in that: The abutting member includes a pressing plate and a threaded plug. The pressing plate is arranged on the base. A threaded hole corresponding to the position of the air outlet is arranged on the pressing plate. The threaded plug is arranged on the threaded hole.

3. A device for detecting air tightness of a dosing device as claimed in claim 2, characterized in that: A first groove is provided on the side of the pressure plate facing the dosing device, and the first groove is arranged at the threaded hole. An elastic limiter is sleeved on the threaded plug, one end of the elastic limiter abuts against the bottom of the first groove, and the other end is connected to the threaded plug, and the outer diameter of the elastic limiter is larger than the aperture of the threaded hole.

4. The air tightness detection device for a dosing device according to claim 1, characterized in that: A second groove is provided at the air outlet, the first sealing member is arranged in the second groove, and the shape of the second groove matches the shape of the first sealing member.

5. The air tightness detection device for a dosing device as claimed in claim 4, characterized in that: The second groove depth is less than or equal to the first sealing member thickness.

6. The air tightness detection device for a dosing device according to claim 1, characterized in that: A limit block is also provided in the installation groove, and the limit block is used to limit the distance that the dosing device is inserted into the installation groove.

7. The air tightness detection device for a dosing device according to claim 1, characterized in that: A quick connector is also provided at the air inlet.

8. The air tightness detection device for a dosing device as claimed in claim 7, characterized in that: A second sealing member is provided at the connection between the base and the quick connector.

9. The air tightness detection device for a dosing device according to claim 1, characterized in that: The mounting groove is provided with chamfers at both ends of the inlet and outlet of the dosing device in the direction of movement.

10. The air tightness detection device for a dosing device as claimed in claim 2, characterized in that: A handle is arranged on the end of the threaded plug away from the thread.

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