Medical gas terminal airtightness detection device

Abstract

The utility model relates to the technical field of air tightness detection, and provides a medical gas terminal air tightness detection device, which comprises a fixed frame, an air inlet pipeline, a ventilation seat, a connecting pipe and a medical gas terminal to be detected, and is characterized in that the air inlet pipeline, the ventilation seat and the connecting pipe are sequentially connected to form a gas passage for ventilating the medical gas terminal; a fixing mechanism used for fixing the medical gas terminal is arranged on the fixing frame, a sliding hole is formed in the fixing frame, the ventilation seat is arranged in the sliding hole in a sliding mode, an adjusting screw rod is arranged on the ventilation seat in a penetrating mode, the adjusting screw rod is in threaded connection with the fixing frame, and the ventilation seat is limited between the fixing frame and the head of the adjusting screw rod. The position of the medical gas terminal can be conveniently adjusted, so that the medical gas terminal can be smoothly fixed, the aim of smoothly fixing the medical gas terminal through deformation of the connecting pipe is avoided, and further the phenomenon that the accuracy of a detection result is influenced by cracks generated at the welding seam position of the medical gas terminal and the connecting pipe due to the operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device for a medical gas terminal. Background Art

[0002] Medical gas terminals are devices used in hospital operating rooms, emergency rooms, resuscitation rooms, and wards to provide medical oxygen, medical air, medical vacuum and other medical gases to medical staff and patients. Because they are used in important medical institutions, the air tightness requirements for medical gas terminals are very high. Therefore, all produced terminals must undergo leakage testing.

[0003] In the prior art, for example, a patent document with publication number "CN217586194U" discloses an intelligent air tightness detection device for a medical gas terminal, including an air intake main path, the air intake main path is respectively connected to a clamping air path and a detection air path, the clamping air path is connected to a clamping device, the clamping device is clamped and cooperated with the medical gas terminal, the detection air path is respectively connected to the inner cavity of the medical gas terminal and a pressure sensor, and the pressure sensor is connected to a computer workstation. This patented technology can solve the problem that the traditional method of observing whether bubbles are generated in water cannot be quantified, while improving the working environment of the operator and reducing the labor intensity of the operator.

[0004] However, in the prior art, the position of the medical gas terminal cannot be adjusted. After the terminal and the connecting pipe are welded, there is usually a certain difference in the relative position of the connecting pipe and the terminal base. If the position of the terminal cannot be adjusted during detection, the medical gas terminal can be successfully fixed through the deformation of the connecting pipe. Such operation can easily cause cracks at the weld position and new leaks, affecting the accuracy of the detection results. Utility Model Content

[0005] The utility model aims to provide a medical gas terminal air tightness detection device to solve the above-mentioned defects of the prior art.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] A medical gas terminal air tightness detection device comprises a fixing frame, an air inlet pipeline, a vent seat, a connecting pipe and a medical gas terminal to be detected. The air inlet pipeline, the vent seat and the connecting pipe are connected in sequence to form a gas passage for ventilating the medical gas terminal. The fixing frame is provided with a fixing mechanism for fixing the medical gas terminal. The fixing frame is provided with a sliding hole. The vent seat can be slidably arranged in the sliding hole. An adjusting screw is passed through the vent seat. The adjusting screw is connected to the fixing frame by a thread. The vent seat is restricted between the fixing frame and the head of the adjusting screw.

[0008] Optionally, the tail of the adjusting screw is connected with a limit nut.

[0009] Optionally, the fixing mechanism includes an electromagnet and a terminal pad that can be adsorbed by the electromagnet, the electromagnet is mounted on the fixing frame, and the terminal pad is connected to the base of the medical gas terminal by a first screw.

[0010] Optionally, the fixing mechanism also includes a mounting seat, the electromagnet is in the shape of a stepped shaft with one end large and the other end small, the small diameter end of the electromagnet is passed through the fixing frame, the mounting seat is sleeved on the small diameter end of the electromagnet, the mounting seat and the electromagnet are axially connected through a second screw, the side wall of the mounting seat is provided with a radial through hole, the radial through hole is provided with a locking screw, and the locking screw is connected to the side wall of the electromagnet.

[0011] Optionally, a sealing ring is provided at the connection between the connecting pipe and the vent seat.

[0012] Optionally, there are at least two sealing rings.

[0013] Optionally, the air intake pipeline includes an air pipe, one end of which is connected to the ventilation seat, and a stop valve, a pressure regulator, a first pressure transmitter, a solenoid valve and a second pressure transmitter are sequentially provided on the air pipe along the air intake direction.

[0014] Optionally, a display screen is provided on the fixing frame, and the pressure regulator, the first pressure transmitter, the solenoid valve, the second pressure transmitter and the electromagnet are electrically connected to the display screen.

[0015] The technical solution of the present utility model has at least the following advantages and beneficial effects: in the present utility model, the vent seat is restricted between the fixing frame and the head of the adjusting screw, and at the same time the adjusting screw is connected to the fixing frame by a threaded connection, that is, the position of the adjusting screw head relative to the fixing frame can be changed, so that the position of the vent seat can be adjusted within a certain range, which is convenient for adjusting the position of the medical gas terminal so that it can be fixed smoothly, avoiding the purpose of fixing the medical gas terminal smoothly by deforming the connecting pipe, and further avoiding the operation causing cracks at the weld between the medical gas terminal and the connecting pipe, thereby affecting the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A front view of a medical gas terminal air tightness detection device provided by the utility model;

[0018] Figure 2 for Figure 1 AA section view;

[0019] Icons: 1-air pipe, 2-stop valve, 3-pressure regulator, 4-first pressure transmitter, 5-solenoid valve, 6-second pressure transmitter, 7-locking nut, 8-vent seat, 9-electromagnet, 10-second screw, 11-mounting seat, 12-locking screw, 13-terminal pad, 14-first screw, 15-medical gas terminal, 16-sealing ring, 17-adjusting screw, 18-limit nut, 19-display screen, 20-fixing bracket, 21-connecting pipe. DETAILED DESCRIPTION

[0020] refer to Figure 1-2 A medical gas terminal air tightness detection device includes a fixing frame 20, an air inlet pipeline, a ventilation seat 8, a connecting pipe 21 and a medical gas terminal 15 to be detected. The air inlet pipeline, the ventilation seat 8 and the connecting pipe 21 are connected in sequence to form a gas passage for ventilation to the medical gas terminal 15.

[0021] In this embodiment, the air inlet pipeline includes an air pipe 1, one end of which is connected to a vent seat 8, and the connection method can be conventional in the art, for example, the air pipe 1 is inserted into the vent seat 8 and locked by a locking nut 7. In practical applications, the other end of the air pipe 1 is connected to a ventilation device (not shown), and the detection principle is the same as that of the prior art, by passing a certain amount of gas to the medical gas terminal 15, and then maintaining the pressure. During the pressure maintenance, the pressure change of the detection gas circuit is detected to determine whether a leak occurs.

[0022] A stop valve 2, a pressure regulator 3, a first pressure transmitter 4, a solenoid valve 5 and a second pressure transmitter 6 are sequentially arranged on the air pipe 1 along the air inlet direction. A display screen 19 is arranged on the fixing frame 20. The pressure regulator 3, the first pressure transmitter 4, the solenoid valve 5, the second pressure transmitter 6 and the electromagnet 9 are electrically connected to the display screen 19 to facilitate displaying various numerical values ​​during the detection process. In actual applications, a controller (not shown) is also provided. It should be understood that the controller is electrically connected to the above-mentioned electronic components.

[0023] The fixing frame 20 is provided with a fixing mechanism for fixing the medical gas terminal 15. It is worth noting that in the prior art, the medical gas terminal 15 uses a mechanical chuck such as a pneumatic clamp, which is easy to damage the base of the medical gas terminal 15. Therefore, the present embodiment has made the following improvements:

[0024] The fixing mechanism includes an electromagnet 9 and a terminal pad 13 that can be adsorbed by the electromagnet 9. The electromagnet 9 is installed on a fixing frame 20. The terminal pad 13 is connected to the base of the medical gas terminal 15 by a first screw 14. Generally, the terminal pad 13 is made of magnetic metal. The electromagnet 9 adsorbs the terminal pad 13 when working, thereby achieving the purpose of fixing the medical gas terminal 15. That is, this embodiment fixes the medical gas terminal 15 by electromagnetic adsorption, thereby avoiding damage to the base of the medical gas terminal 15.

[0025] In this embodiment, the installation method of the electromagnet 9 is as follows: the fixing mechanism also includes a mounting seat 11, the electromagnet 9 is in the shape of a stepped shaft with one end large and the other end small, the small diameter end of the electromagnet 9 is inserted into the fixing frame 20, and the large diameter end of the electromagnet 9 is against the fixing frame 20, the mounting seat 11 is sleeved on the small diameter end of the electromagnet 9, the mounting seat 11 and the electromagnet 9 are axially connected by a second screw 10, the side wall of the mounting seat 11 is provided with a radial through hole, the radial through hole is provided with a locking screw 12, and the locking screw 12 is connected to the side wall of the electromagnet 9, so that it is easy to disassemble and assemble the electromagnet 9. In addition, it should be understood that the installation method of the electromagnet 9 in this embodiment is only an option, not a limitation. In other embodiments, of course, the electromagnet 9 can also be installed in other ways, such as the electromagnet is fixed to the fixing frame 20 by bonding.

[0026] In this embodiment, the fixing frame 20 is provided with a sliding hole, and the vent seat 8 can be slidably arranged in the sliding hole. An adjusting screw 17 is passed through the vent seat 8, and the adjusting screw 17 is connected to the fixing frame 20 by a thread. The vent seat 8 is restricted between the fixing frame 20 and the head of the adjusting screw 17. Such a configuration allows the position of the head of the adjusting screw 17 relative to the fixing frame 20 to be changed, that is, the position of the vent seat 8 can be adjusted within a certain range, which is convenient for adjusting the position of the medical gas terminal 15, so that it can be fixed smoothly, avoiding the purpose of smoothly fixing the medical gas terminal 15 by deforming the connecting pipe 21, and further avoiding the operation causing cracks at the weld position between the medical gas terminal 15 and the connecting pipe 21, thereby affecting the accuracy of the detection result.

[0027] In this embodiment, the tail of the adjusting screw 17 is connected with a limiting nut 18 to prevent the adjusting screw 17 from slipping off the fixing bracket 20 .

[0028] On the basis of the above, a sealing ring 16 is provided at the connection between the connecting pipe 21 and the vent seat 8. Furthermore, in this embodiment, two sealing rings 16 are provided to improve the sealing performance between the connecting pipe 21 and the vent seat 8 and avoid affecting the accuracy of the detection result. Of course, in other embodiments, a larger number of sealing rings 16 can also be provided at the connection between the connecting pipe 21 and the vent seat 8.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A medical gas terminal air tightness detection device, comprising a fixing frame (20), an air inlet pipeline, a vent seat (8), a connecting pipe (21) and a medical gas terminal (15) to be detected, wherein the air inlet pipeline, the vent seat (8) and the connecting pipe (21) are connected in sequence to form a gas passage for ventilating the medical gas terminal (15), and a fixing mechanism for fixing the medical gas terminal (15) is provided on the fixing frame (20), characterized in that: The fixing frame (20) is provided with a sliding hole, and the vent seat (8) is slidably arranged in the sliding hole. An adjusting screw (17) is passed through the vent seat (8), and the adjusting screw (17) is connected to the fixing frame (20) through a threaded connection. The vent seat (8) is restricted between the fixing frame (20) and the head of the adjusting screw (17).

2. The medical gas terminal air tightness detection device according to claim 1, characterized in that: The tail of the adjusting screw rod (17) is connected with a limiting nut (18).

3. The medical gas terminal air tightness detection device according to claim 1, characterized in that: The fixing mechanism comprises an electromagnet (9) and a terminal pad (13) that can be adsorbed by the electromagnet (9); the electromagnet (9) is mounted on the fixing frame (20); and the terminal pad (13) is connected to the base of the medical gas terminal (15) via a first screw (14).

4. The medical gas terminal air tightness detection device according to claim 3, characterized in that: The fixing mechanism further comprises a mounting seat (11), the electromagnet (9) is in the shape of a stepped shaft with one end being large and the other end being small, the small diameter end of the electromagnet (9) is inserted into the fixing frame (20), the mounting seat (11) is sleeved on the small diameter end of the electromagnet (9), the mounting seat (11) and the electromagnet (9) are axially connected via a second screw (10), a radial through hole is provided on the side wall of the mounting seat (11), a locking screw (12) is provided in the radial through hole, and the locking screw (12) is connected to the side wall of the electromagnet (9).

5. The medical gas terminal air tightness detection device according to claim 1, characterized in that: A sealing ring (16) is provided at the connection between the connecting pipe (21) and the vent seat (8).

6. The medical gas terminal air tightness detection device according to claim 5, characterized in that: At least two sealing rings (16) are provided.

7. The medical gas terminal air tightness detection device according to claim 1, characterized in that: The air intake pipeline comprises an air pipe (1), one end of which is connected to the ventilation seat (8), and the air pipe (1) is provided with a stop valve (2), a pressure regulator (3), a first pressure transmitter (4), a solenoid valve (5) and a second pressure transmitter (6) in sequence along the air intake direction.

8. The medical gas terminal air tightness detection device according to claim 7, characterized in that: A display screen (19) is provided on the fixing frame (20), and the pressure regulator (3), the first pressure transmitter (4), the solenoid valve (5), the second pressure transmitter (6) and the electromagnet (9) are electrically connected to the display screen (19).

Images