Disposable vital capacity blowing nozzle

Abstract

The utility model relates to the technical field of vital capacity blowing nozzles, in particular to a disposable vital capacity blowing nozzle which comprises a blowing nozzle and a sealing assembly, the sealing assembly comprises a sealing pipe, a wafer, four fixing pieces, a fixing ring and four blocking pieces, the wafer is fixedly connected with the blowing nozzle and located below the blowing nozzle, the sealing pipe is fixedly connected with the wafer and located below the wafer, and the sealing pipe is fixedly connected with the wafer and located below the fixing ring. The sealing pipe is communicated with the blowing nozzle, the four fixing pieces are fixedly connected with the round piece and are evenly arranged on the outer side of the sealing pipe, the fixing ring is in threaded connection with the four fixing pieces, the four blocking pieces are fixedly connected with the corresponding fixing pieces, the sealing pipe is inserted into an instrument, the fixing ring is rotated, the fixing ring extrudes the four fixing pieces, and the four fixing pieces push the sealing pipe; according to the blowing nozzle, the sealing pipe is fixed on the instrument, and through the arrangement of the structure, the problems that the gas outlet and the instrument are not tightly fixed, gas leaks from a gap between the blowing nozzle and the instrument in the blowing process, and the measurement precision is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vital capacity mouthpieces, in particular to a disposable vital capacity mouthpiece. Background Art

[0002] In order to understand the physical condition of students, schools now test their vital capacity. Vital capacity refers to the amount of gas exhaled with the utmost ability after a maximum inhalation without time limit. The instrument for detecting vital capacity has a blowpipe. People can detect the size of their vital capacity by blowing into the blowpipe. In order to facilitate blowing into the blowpipe, a mouthpiece is provided at the mouth of the blowpipe. Student tests are generally conducted on a large number of students together. For reasons of hygiene and other reasons, the mouthpiece is disposable, and each person uses a mouthpiece. However, the existing mouthpiece and blowpipe are connected. If the person tested first is sick and blows germs into the blowpipe, even if the person tested later changes the mouthpiece, he or she may also easily inhale the germs when inhaling, causing cross infection of the disease.

[0003] In the prior art, the patent (CN214342295U) mentions a disposable vital capacity mouthpiece, including a mouthpiece body, a one-way valve is fixed in the air outlet of the mouthpiece body, the one-way valve is fixed by a front valve seat and a rear valve seat, a center hole is opened in the center of the one-way valve, and a storage cavity is also provided in the front valve seat of the one-way valve, an elastic baffle covering the center hole is fixed in the storage cavity, and at least one side of the elastic baffle is not fixed to the bottom surface of the storage cavity, so that the user blows into the mouthpiece, the gas will push the elastic baffle, so that the front valve seat and the rear valve seat are connected to each other, and when the user stops blowing, due to the elastic force of the elastic baffle, the elastic baffle will continue to close the center hole of the front valve seat, so that the bacteria in the trachea can be prevented from entering the mouthpiece through the front valve body, causing cross infection. Through the above design, the disposable vital capacity mouthpiece is more hygienic when used, which is helpful for the prevention and control of infectious diseases.

[0004] However, in the above-mentioned prior art, the air outlet is not fixed tightly enough to the instrument. When blowing, the gas will leak from the gap between the mouthpiece and the instrument, affecting the measurement accuracy. Utility Model Content

[0005] The utility model aims to provide a disposable vital capacity mouthpiece, which solves the problem in the prior art that the air outlet and the instrument are not fixed tightly enough, and when blowing, the gas leaks out from the gap between the mouthpiece and the instrument, thus affecting the measurement accuracy.

[0006] To achieve the above-mentioned purpose, the utility model provides a disposable vital capacity mouthpiece, including a mouthpiece and a sealing assembly, the sealing assembly including a sealing tube, a disc, four fixing plates, a fixing ring and four baffles, the disc is fixedly connected to the mouthpiece and is located below the mouthpiece, the sealing tube is fixedly connected to the disc and is located below the disc, and the sealing tube is communicated with the mouthpiece, the four fixing plates are fixedly connected to the disc and are evenly arranged on the outside of the sealing tube, the fixing ring is threadedly connected to the four fixing plates and is covered on the outside of the four fixing plates, and the four baffles are fixedly connected to the corresponding fixing plates and are located on the outside of the fixing ring.

[0007] The sealing tube includes an inner tube and an outer tube, wherein the inner tube is fixedly connected to the disc and located below the disc, and the outer tube is fixedly connected to the disc and located inside the four fixed plates, and a slot is formed between the inner tube and the outer tube.

[0008] Wherein, the fixing ring comprises a fixing ring body and a plurality of protruding blocks, wherein the plurality of protruding blocks are fixedly connected to the fixing ring body and are evenly arranged on the outer side of the fixing ring body.

[0009] One side of the four fixing plates is in contact with the outer tube, the other ends of the four fixing plates are arranged at an angle, and a thread is arranged on the surface of each fixing plate.

[0010] Among them, the disposable vital capacity mouthpiece also includes a sealing assembly, which includes a connecting ring, four cylinders, a sealing sheet and four springs. The connecting ring is fixedly connected to the inner tube and is located below the inner tube. One end of the four cylinders is fixedly connected to the sealing sheet, and the other ends of the four cylinders are slidably connected to the connecting ring and are evenly arranged on one side of the connecting ring. The cross-section of the cylinder is T-shaped, and the four springs are covered on the outer sides of the corresponding cylinders.

[0011] The utility model discloses a disposable vital capacity mouthpiece, wherein the disc is fixedly connected to the mouthpiece and is located below the mouthpiece, the sealing tube is fixedly connected to the disc and is located below the disc, and the sealing tube is communicated with the mouthpiece, four fixing plates are fixedly connected to the disc and are evenly arranged on the outside of the sealing tube, the fixing ring is threadedly connected to the four fixing plates and is covered on the outside of the four fixing plates, four blocking plates are fixedly connected to corresponding fixing plates and are located on the outside of the fixing ring, the sealing tube is inserted into an instrument, the fixing ring is rotated, the fixing ring squeezes the four fixing plates, and the four fixing plates push the sealing tube, the sealing tube is fixed on the instrument, and the sealing performance is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0014] Figure 2 It is a front view of the first embodiment of the utility model.

[0015] Figure 3 The utility model Figure 2 AA line section view.

[0016] Figure 4 It is an overall structural diagram of the second embodiment of the utility model.

[0017] Figure 5 It is a front view of the second embodiment of the utility model.

[0018] Figure 6 The utility model Figure 5 BB line cross-sectional view.

[0019] 101-mouthpiece, 102-disc, 103-fixing plate, 104-blocking plate, 105-inner tube, 106-outer tube, 107-fixing ring body, 108-protruding block, 109-slot, 201-connecting ring, 202-cylinder, 203-sealing plate, 204-spring. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] First embodiment:

[0022] See also Figures 1 to 3 ,in, Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is a front view of the first embodiment of the utility model. Figure 3 The utility model Figure 2 AA line section view.

[0023] The utility model provides a disposable vital capacity mouthpiece, comprising a mouthpiece 101 and a sealing assembly, wherein the sealing assembly comprises a sealing tube, a disc 102, four fixing plates 103, a fixing ring and four blocking plates 104, the sealing tube comprises an inner tube 105 and an outer tube 106, the fixing ring comprises a fixing ring body 107 and a plurality of protruding blocks 108, and the aforementioned problem is solved by the aforementioned scheme.

[0024] According to this specific embodiment, the disc 102 is fixedly connected to the mouthpiece 101 and is located below the mouthpiece 101. The sealing tube is fixedly connected to the disc 102 and is located below the disc 102, and the sealing tube is communicated with the mouthpiece 101. The four fixing plates 103 are fixedly connected to the disc 102 and are evenly arranged on the outside of the sealing tube. The fixing ring is threadedly connected to the four fixing plates 103 and is covered on the outside of the four fixing plates 103. The four blocking plates 104 are fixedly connected to the corresponding fixing plates 103 and are located on the outside of the fixing ring. The sealing tube is inserted into the instrument and the fixing ring is rotated. The fixing ring squeezes the four fixing plates 103, and the four fixing plates 103 push the sealing tube to fix the sealing tube on the instrument, thereby improving the sealing performance.

[0025] Among them, the inner tube 105 is fixedly connected to the disc 102 and is located below the disc 102. The outer tube 106 is fixedly connected to the disc 102 and is located on the inner side of the four fixed plates 103. A slot 109 is formed between the inner tube 105 and the outer tube 106. With the cooperation of the inner tube 105 and the outer tube 106, the instrument is clamped in the slot 109.

[0026] Secondly, a plurality of the protruding blocks 108 are fixedly connected to the fixing ring body 107 and are evenly arranged on the outside of the fixing ring body 107 . The arrangement of the protruding blocks 108 facilitates the rotation of the fixing ring body 107 and the installation or removal of the blowing nozzle 101 .

[0027] At the same time, one side of the four fixing plates 103 is in contact with the outer tube 106, and the other ends of the four fixing plates 103 are inclined. The surface of each fixing plate 103 is provided with a thread, and the fixing ring body 107 is rotated, and the fixing ring body 107 moves on the four fixing plates 103, and the four fixing plates 103 lock the outer tube 106.

[0028] When using the utility model, with the cooperation of the inner tube 105 and the outer tube 106, the instrument is clamped in the clamping groove 109, and the fixing ring body 107 is rotated by the protruding block 108. The fixing ring body 107 moves on the four fixing plates 103, and the four fixing plates 103 lock the outer tube 106 to improve the sealing performance.

[0029] Second embodiment:

[0030] See also Figures 4 to 6 ,in, Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model. Figure 5 is a front view of the second embodiment of the utility model, Figure 6 The utility model Figure 5 BB line cross-sectional view.

[0031] On the basis of the first embodiment, the utility model provides a disposable vital capacity mouthpiece, which also includes a sealing component, wherein the sealing component includes a connecting ring 201, four cylinders 202, a sealing sheet 203 and four springs 204. Through the arrangement of the above structure, the problem of easy infection of diseases when measuring vital capacity is solved.

[0032] According to this specific embodiment, the connecting ring 201 is fixedly connected to the inner tube 105 and is located below the inner tube 105. One end of the four cylinders 202 is fixedly connected to the sealing sheet 203. The other ends of the four cylinders 202 are slidably connected to the connecting ring 201 and are evenly arranged on one side of the connecting ring 201. The cross-section of the cylinder 202 is T-shaped. The four springs 204 are wrapped around the outer side of the corresponding cylinder 202. When measuring vital capacity, the spring 204 contracts and the sealing sheet 203 moves. After the blowing is completed, the sealing sheet 203 can close the inner tube 105 to prevent the infection of bacteria.

[0033] When using the utility model, with the cooperation of the inner tube 105 and the outer tube 106, the instrument is clamped in the clamping groove 109, and the fixing ring body 107 is rotated by the protruding block 108. The fixing ring body 107 moves on the four fixing plates 103, and the four fixing plates 103 lock the outer tube 106. When blowing, the spring 204 contracts and the sealing plate 203 moves. After the blowing is completed, the spring 204 pushes the cylinder 202, and the sealing plate 203 can seal the inner tube 105 to prevent the infection of bacteria.

[0034] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A disposable vital capacity mouthpiece, comprising a mouthpiece, characterized in that: It also includes a sealing assembly, which includes a sealing tube, a disc, four fixing plates, a fixing ring and four baffles. The disc is fixedly connected to the blowing nozzle and is located below the blowing nozzle. The sealing tube is fixedly connected to the disc and is located below the disc, and the sealing tube is communicated with the blowing nozzle. The four fixing plates are fixedly connected to the disc and are evenly arranged on the outside of the sealing tube. The fixing ring is threadedly connected to the four fixing plates and is covered on the outside of the four fixing plates. The four baffles are fixedly connected to the corresponding fixing plates and are located on the outside of the fixing ring.

2. The disposable vital capacity mouthpiece according to claim 1, characterized in that: The sealing tube includes an inner tube and an outer tube. The inner tube is fixedly connected to the disc and located below the disc. The outer tube is fixedly connected to the disc and located inside the four fixing plates. A slot is formed between the inner tube and the outer tube.

3. The disposable vital capacity mouthpiece according to claim 2, characterized in that: The fixing ring comprises a fixing ring body and a plurality of protruding blocks, wherein the plurality of protruding blocks are fixedly connected to the fixing ring body and are evenly arranged on the outer side of the fixing ring body.

4. The disposable vital capacity mouthpiece according to claim 3, characterized in that: One side of the four fixing plates is in contact with the outer tube, and the other ends of the four fixing plates are arranged obliquely, and a thread is arranged on the surface of each fixing plate.

5. The disposable vital capacity mouthpiece according to claim 4, characterized in that: The disposable vital capacity mouthpiece also includes a sealing assembly, which includes a connecting ring, four cylinders, a sealing sheet and four springs. The connecting ring is fixedly connected to the inner tube and is located below the inner tube. One end of the four cylinders is fixedly connected to the sealing sheet, and the other ends of the four cylinders are slidably connected to the connecting ring and are evenly arranged on one side of the connecting ring. The cross-section of the cylinder is T-shaped, and the four springs are covered on the outer sides of the corresponding cylinders.

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