Respirator calibration device

Abstract

The utility model relates to the technical field of breathing machine calibration devices, in particular to a breathing machine calibration device which comprises a shell and straight pipes, the lower portions of the front side and the rear side of the shell are communicated with the inner sides of the straight pipes respectively, the outer sides of the two straight pipes are connected with installation structures respectively, the inner wall of the installation structure located on the rear portion is connected with a breathing machine calibrator, and the inner wall of the installation structure located on the rear portion is connected with the breathing machine calibrator. A bent rod is fixedly connected to the top of the respirator calibrator, the bent rod in a control structure moves forwards through a vertical plate, the rear portion of the outer wall of the bent rod is separated from a round opening in the front face of a groove plate, then a straight rod rotates, a rotating supporting rod drives a round frame to rotate, the rotating round frame enables a filter element in butt joint with a straight pipe to be replaced, and then the bent rod moves backwards through the vertical plate. The rear portion of the outer wall of the bent rod is connected with a corresponding round opening in the front face of the groove plate in an inserted mode, the positions of the straight rod and the round frame are fixed, the working efficiency of the breathing machine calibration device is improved, and the using limitation of the breathing machine calibration device is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilator calibration devices, in particular to a ventilator calibration device. Background Art

[0002] The ventilator calibration device can calibrate various mainstream ventilator testers at home and abroad. At the same time, it can realize the traceability of the measurement values ​​of the main parameters in the ventilator tester, and finally realize the improvement of the traceability system of the ventilator equipment.

[0003] For example, a ventilator calibration device with the authorization announcement number "CN219323751U" has a filtering mechanism including a filter tube, a stop ring, a second spring and a filter chamber. The particles in the gas are filtered through the filter tube, the filter chamber and the filter element to prevent the particles in the gas from affecting the parameters generated by the calibration device body, so that the ventilator calibration device can provide a benchmark for the parameters of the ventilator and prevent the particles in the gas from affecting the detection parameters of the gas inside the calibration device body. However, during the use of the ventilator calibration device, the inner diameter of the delivery pipeline is limited, which in turn limits the size of the filter element, and the filter element cannot be replaced during work. It is easy for the delivery pipeline to be blocked during the ventilator calibration process, and the entire plant needs to be shut down to replace the filter element, which reduces the working efficiency of the ventilator calibration device and leads to usage limitations of the ventilator calibration device. Utility Model Content

[0004] The utility model aims to solve the problem that the working efficiency of the ventilator calibration device is reduced, resulting in the use limitation of the ventilator calibration device, and proposes a ventilator calibration device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A ventilator calibration device is designed, including a shell and a straight tube, wherein the front and rear sides of the shell are respectively connected to the inner side of the straight tube, the outer sides of the two straight tubes are respectively connected to mounting structures, the inner wall of the mounting structure at the rear is connected to a ventilator calibrator, a curved rod is fixedly connected to the top of the ventilator calibrator, the front of the shell is connected to a control structure, a groove plate is fixedly connected to the front of the shell, horizontal plates are respectively fixedly connected to the left and right sides of the shell, and the inner wall of the mounting structure at the front is connected to a ventilator pipeline.

[0007] Preferably, the control structure includes a straight rod and a round frame, the outer wall of the straight rod is rotatably connected to the front side of the outer shell, the rear end face of the straight rod is fixedly connected to the inner wall of the round frame, a filter element is inserted into the circular opening of the outer wall of the round frame, the top front end of the straight rod is fixedly connected to a vertical plate, and the inner wall of the vertical plate is slidably clamped with a bent rod.

[0008] Preferably, the rear of the outer wall of the bent rod is plugged into the front circular opening of the slot plate.

[0009] Preferably, circular rings are fixedly connected to the front and rear sides of the circular frame respectively, and the outer sides of the circular rings are in contact with the inner wall of the outer shell.

[0010] Preferably, the mounting structure includes a round tube and a first screw rod, the inner sides of the two round tubes are respectively fixedly connected to the outer sides of the two straight tubes, the top of the round tube is threadedly connected to the outer wall of the first screw rod, the top of the first screw rod is fixedly connected with a first handle, and the inner wall end of the round tube is fixedly connected with a gasket.

[0011] Preferably, the inner wall of the circular tube at the rear is plugged into the front pipe of the ventilator calibrator, and the inner wall of the circular tube at the front is plugged into the outer wall of the ventilator pipe.

[0012] The utility model provides a ventilator calibration device, which has the following beneficial effects: a bent rod in a control structure is moved forward through a vertical plate, so that the rear of the outer wall of the bent rod is separated from the circular opening on the front side of the slot plate, and then the straight rod is rotated, and the rotating support rod rotates the circular frame, and the rotating circular frame replaces the filter element connected to the straight pipe, and then the bent rod is moved backward through the vertical plate, so that the rear of the outer wall of the bent rod is plugged into the circular opening corresponding to the front side of the slot plate, thereby completing the position fixation of the straight rod and the circular frame, thereby improving the working efficiency of the ventilator calibration device and eliminating the use limitations of the ventilator calibration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the connection relationship between the middle round frame, the filter element and the straight rod;

[0015] Figure 3 for Figure 1 A schematic diagram of the connection relationship between the middle curved plate, the second screw rod and the second handle;

[0016] Figure 4 for Figure 1 The structural diagram of A in the figure;

[0017] Figure 5 for Figure 1 Schematic diagram of the structure of B;

[0018] Figure 6 for Figure 1 Schematic diagram of the connection relationship between the middle straight tube, the round tube and the first screw.

[0019] In the figure: 1. shell, 2. control structure, 201. straight rod, 202. round frame, 203. filter element, 204. vertical plate, 205. bent rod, 3. mounting structure, 301. round tube, 302. first screw rod, 303. first handle, 304. gasket, 4. straight tube, 5. horizontal plate, 6. groove plate, 7. ring, 8. ventilator calibrator, 9. bent rod, 10. second screw rod, 11. second handle, 12. bottom plate, 13. ventilator pipeline. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Embodiment 1:

[0022] See also Figure 1-6 In the present embodiment, a ventilator calibration device comprises an outer shell 1 and a straight tube 4. The front and rear sides of the outer shell 1 are respectively connected to the inner side of the straight tube 4. A circular opening is processed on the upper front of the outer shell 1. The outer sides of the two straight tubes 4 are respectively connected to mounting structures 3. The inner wall of the rear mounting structure 3 is connected to a ventilator calibrator 8. How to operate and use the ventilator calibrator 8 is already existing technology. No further elaboration is made on the model according to the use requirements. A curved rod 9 is fixedly connected to the top of the ventilator calibrator 8, a control structure 2 is connected to the front of the outer shell 1, a groove plate 6 is fixedly connected to the front of the outer shell 1, and a plurality of circular openings are processed on the front of the groove plate 6. Horizontal plates 5 are respectively fixedly connected to the lower left and right sides of the outer shell 1. The inner wall of the front mounting structure 3 is connected to a ventilator pipeline 13.

[0023] The control structure 2 includes a straight rod 201 and a round frame 202. The outer wall of the straight rod 201 is rotatably connected to the front face of the housing 1. The straight rod 201 is rotated by the front bearing of the housing 1 under force. The rear end face of the straight rod 201 is fixedly connected to the inner wall of the round frame 202. A filter element 203 is inserted into the circular opening of the outer wall of the round frame 202. The material of the filter element 203 needs to be selected according to demand. A vertical plate 204 is fixedly connected to the top front end of the straight rod 201. A curved rod 205 is slidably connected to the inner wall of the vertical plate 204. The curved rod 205 is forced to slide back and forth through the inner wall of the vertical plate 204. The rear of the outer wall of the curved rod 205 is inserted into the front circular opening of the slot plate 6. The front and rear sides of the round frame 202 are respectively fixedly connected with circular rings 7, which are rubber rings. The outer side of the circular ring 7 fits the inner wall of the housing 1.

[0024] By controlling the curved rod 205 in the structure 2 to move forward through the vertical plate 204, the rear of the outer wall of the curved rod 205 is separated from the circular opening on the front side of the slot plate 6, and then the straight rod 201 is rotated, and the rotating support rod 201 rotates with the circular frame 202, and the rotating circular frame 202 replaces the filter element 203 connected to the straight pipe 4, and then the curved rod 205 is moved backward through the vertical plate 204, so that the rear of the outer wall of the curved rod 205 is plugged into the circular opening corresponding to the front side of the slot plate 6, and the position fixation of the straight rod 201 and the circular frame 202 is completed, thereby improving the working efficiency of the ventilator calibration device and eliminating the use limitations of the ventilator calibration device.

[0025] The mounting structure 3 includes a circular tube 301 and a first screw rod 302. The inner sides of the two circular tubes 301 are fixedly connected to the outer sides of the two straight tubes 4 respectively. The top of the circular tube 301 is threadedly connected to the outer wall of the first screw rod 302. The first screw rod 302 is subjected to force to rotate up and down through the top of the circular tube 301. A first handle 303 is fixedly connected to the top of the first screw rod 302. The first handle 303 is convenient for driving the first screw rod 302 to rotate up and down. A gasket 304 is fixedly connected to the inner wall end of the circular tube 301. The gasket 304 is made of rubber. The inner wall of the circular tube 301 at the rear is plugged into the front pipe of the ventilator calibrator 8, and the inner wall of the circular tube 301 at the front is plugged into the outer wall of the ventilator pipe 13.

[0026] Working principle:

[0027] The ventilator pipeline 13 delivers the gas into the front straight pipe 4 through the front circular pipe 301, and then the gas passes through the housing 1 and the corresponding filter element 203 to reach the rear straight pipe 4, and finally enters the ventilator calibrator 8 in the rear circular pipe 301 for calibration.

[0028] Ventilator calibration device installation:

[0029] The inner wall of the rear circular tube 301 is plugged into the pipe of the ventilator calibrator 8, and then the first handle 303 drives the first screw 302 to rotate downward, so that the bottom of the first screw 302 is pressed against the pipe on the front of the ventilator calibrator 8, thereby improving the connection stability. Then the outer wall of the ventilator pipe 13 is plugged into the inner wall of the front circular tube 301, and then the front first handle 303 drives the front first screw 302 to rotate downward, so that the bottom of the first screw 302 is pressed against the top of the ventilator pipe 13, and the gasket 304 on the inner wall of the circular tube 301 plays a sealing role through its own rubber material.

[0030] Filter replacement during operation of the ventilator calibrator:

[0031] When a blockage occurs during operation of the ventilator calibrator 8, the bent rod 205 moves forward through the vertical plate 204, so that the rear of the outer wall of the bent rod 205 is separated from the circular opening on the front of the slot plate 6, and then the straight rod 201 is rotated. The rotating support rod 201 rotates with the round frame 202, and the rotating round frame 202 replaces the filter element 203 connected to the straight pipe 4. Then the bent rod 205 moves backward through the vertical plate 204, so that the rear of the outer wall of the bent rod 205 is plugged into the circular opening corresponding to the front of the slot plate 6, completing the position fixation of the straight rod 201 and the round frame 202. By pushing backward through the circular opening on the top of the outer shell 1, the filter element 203 at the top of the round frame 202 can be pushed out and replaced, and the circular rings 7 on the front and back sides of the round frame 202 are rubber rings that play a sealing role.

[0032] Embodiment 2:

[0033] See also Figure 1-6 : In this embodiment, a ventilator calibration device also includes a second screw 10, a second handle 11 and a base plate 12. The outer wall of the second screw 10 is threadedly connected to the inner wall of the cross plate 5, the top of the second screw 10 is fixedly connected to the bottom of the second handle 11, and the bottom of the second screw 10 is fixedly connected to the top of the base plate 12.

[0034] Working principle:

[0035] After the housing 1 is installed, the second handle 11 is used to rotate the second screw 10 downward through the transverse plate 5 , and the rotating second screw 10 moves the bottom plate 12 downward, so that the bottom of the bottom plate 12 fits with the vehicle receiving surface, thereby supporting the housing 1 .

[0036] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A breathing machine calibration device, comprising a housing (1) and a straight tube (4), characterized in that: The lower sides of the front and rear sides of the shell (1) are respectively connected to the inner side of the straight tube (4); the outer sides of the two straight tubes (4) are respectively connected to the mounting structures (3); the inner wall of the mounting structure (3) at the rear is connected to the ventilator calibrator (8); the top of the ventilator calibrator (8) is fixedly connected to a bent rod (9); the front side of the shell (1) is connected to the control structure (2); the front side of the shell (1) is fixedly connected to a groove plate (6); the lower sides of the left and right sides of the shell (1) are respectively fixedly connected to horizontal plates (5); and the inner wall of the mounting structure (3) at the front is connected to a ventilator pipeline (13).

2. A breathing machine calibration device according to claim 1, characterized in that: The control structure (2) comprises a straight rod (201) and a round frame (202); the outer wall of the straight rod (201) is rotatably connected to the front side of the housing (1); the rear end face of the straight rod (201) is fixedly connected to the inner wall of the round frame (202); a filter element (203) is inserted into the circular opening of the outer wall of the round frame (202); the top front end of the straight rod (201) is fixedly connected to a vertical plate (204); and the inner wall of the vertical plate (204) is slidably connected to a bent rod (205).

3. A breathing machine calibration device according to claim 2, characterized in that: The rear of the outer wall of the bent rod (205) is plugged into the front circular opening of the slot plate (6).

4. A breathing machine calibration device according to claim 2, characterized in that: Circular rings (7) are fixedly connected to the front and rear sides of the circular frame (202), respectively, and the outer side of the circular ring (7) is in contact with the inner wall of the outer shell (1).

5. A breathing machine calibration device according to claim 1, characterized in that: The mounting structure (3) comprises a circular tube (301) and a first screw rod (302); the inner sides of the two circular tubes (301) are respectively fixedly connected to the outer sides of the two straight tubes (4); the top of the circular tube (301) is threadedly connected to the outer wall of the first screw rod (302); the top of the first screw rod (302) is fixedly connected to a first handle (303); and the inner wall end of the circular tube (301) is fixedly connected to a gasket (304).

6. A breathing machine calibration device according to claim 5, characterized in that: The inner wall of the circular tube (301) located at the rear is plugged into the front pipeline of the breathing machine calibrator (8), and the inner wall of the circular tube (301) located at the front is plugged into the outer wall of the breathing machine pipeline (13).

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