Pulmonary function meter sampler installation structure and pulmonary function meter

Abstract

A pulmonary function meter sampler mounting structure and a pulmonary function meter, comprising a first fixing member and a second fixing member, wherein the first fixing member is provided with a first travel groove, the first travel groove including a first end and a second end opposite to each other, the second fixing member is provided with a first accommodating cavity, the inner wall of the first accommodating cavity is provided with a locking protrusion, the first fixing member is accommodated in the first accommodating cavity, the first fixing member can slide and rotate relative to the second fixing member so that the locking protrusion slides in the first travel groove; when the locking protrusion slides to the first end, the locking protrusion engages with the first travel groove, and the first fixing member and the second fixing member are locked; when the locking protrusion slides to the second end, the first fixing member and the second fixing member are unlocked. By providing the first travel groove on the first fixing member and providing the locking protrusion on the second fixing member, the first fixing member and the second fixing member can be fixed or separated by sliding the locking protrusion in the first travel groove. The mounting structure has few parts, is simple to operate, and is convenient for installation and disassembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a pulmonary function meter sampler installation structure and a pulmonary function meter. Background Art

[0002] Pulmonary function tests are essential for detecting lung and airway lesions early and assessing disease severity. The test includes a series of tests, including ventilation, gas exchange, respiratory regulation, and pulmonary circulation. Through a combination of mechanical methods and built-in processor algorithms, the device guides the subject through the pulmonary function test process and generates relevant indicators.

[0003] Medical differential pressure spirometers, known for their high accuracy, minimal drift, and excellent overall performance, are widely used in large hospitals and medical institutions. Most existing differential pressure spirometers use a plug-in design, requiring the sampler to be inserted and then the exposed fasteners to lock the device. This requires a large number of components, requiring significant force for insertion and removal, which can easily cause internal structural deformation. Summary of the Invention

[0004] The purpose of the present invention is to provide a pulmonary function instrument sampler installation structure and a pulmonary function instrument, which have the characteristics of fewer parts, simple operation and easy disassembly.

[0005] To achieve the purpose of the present invention, the present invention provides the following technical solutions:

[0006] In the first aspect, the present invention provides a pulmonary function meter sampler installation structure, including a first fixing member and a second fixing member, the first fixing member is provided with a first travel groove, the first travel groove includes a first end and a second end opposite to each other, the second fixing member is provided with a first accommodating cavity, the inner wall of the first accommodating cavity is provided with a locking protrusion, the first fixing member is accommodated in the first accommodating cavity, the first fixing member can slide and rotate relative to the second fixing member so that the locking protrusion extends into the first travel groove and slides in the first travel groove; when the locking protrusion slides to the first end, the locking protrusion is engaged with the first travel groove, and the first fixing member is locked with the second fixing member, and when the locking protrusion slides to the second end, the first fixing member is unlocked with the second fixing member.

[0007] In one embodiment, the first travel groove includes a first sliding groove and a first locking groove, the first sliding groove extends in a direction parallel to the axis of the first accommodating cavity, the first locking groove is perpendicular to and connected to the first sliding groove, the locking protrusion slides into the first locking groove along the first sliding groove, and the locking protrusion slides in the first locking groove to lock the first fixing member and the second fixing member.

[0008] In one embodiment, the pulmonary function meter sampler mounting structure also includes a connecting member, which is connected to the first fixing member. The connecting member includes a fixing portion, which is accommodated in the first sliding groove. When the locking protrusion slides to the second end, the fixing portion abuts against the locking protrusion to fix the first fixing member to the second fixing member.

[0009] In one embodiment, the pulmonary function meter sampler mounting structure further includes a sensing component, which is connected to the second fixing member and extends in a direction perpendicular to the axis of the first accommodating cavity. The first fixing member is provided with a second accommodating cavity, and an indicator groove is provided on the surface of the first fixing member facing away from the second accommodating cavity. When the first fixing member and the second fixing member are locked, the sensing component is connected to the indicator groove.

[0010] In one embodiment, a guide groove is provided on a surface of the fixing portion facing away from the first accommodating cavity, and the guide groove is used to enable the sensing component to slide to the indicating groove.

[0011] In one embodiment, the sensing component includes a rolling member and a moving member, the moving member is provided with a mounting groove, the rolling member is accommodated in the mounting groove and is rotatably connected to the moving member, and when the first fixed member and the second fixed member rotate relative to each other, the moving member drives the rolling member to move circumferentially along the surface of the first fixed member facing away from the second accommodating cavity, while the rolling member rotates.

[0012] In a second aspect, the present invention also provides a pulmonary function meter, comprising a sampler, a pulmonary function meter body, and a pulmonary function meter sampler mounting structure as described in any embodiment of the first aspect, wherein the sampler is detachably connected to the first fixing member, the pulmonary function meter body comprises a handle, and the second fixing member is fixedly connected to the handle.

[0013] In one embodiment, the sampler is provided with a second stroke groove, which is correspondingly arranged and connected to the first stroke groove, and the locking protrusion extends from the first stroke into the second stroke groove to fix the sampler to the first fixing member.

[0014] In one embodiment, the sampler includes a first sampling channel, and the connecting member includes a second sampling channel. The second sampling channel and the first sampling channel both extend and are connected along a first direction, and the gas inlet of the first sampling channel and the gas inlet of the second sampling channel are staggered in a direction perpendicular to the first direction.

[0015] In one embodiment, the sampler includes a fixed shell and a sampler body, the fixed shell is provided with a snap-fit groove on the surface opposite to the sampler body, and the surface of the sampler body is provided with a snap-fit protrusion, and the snap-fit protrusion is matched with the snap-fit groove to fix the fixed shell to the sampler body.

[0016] In one embodiment, the pulmonary function instrument further includes a decorative piece, which is fixed to the first fixing piece. The fixing shell includes a connecting portion, which is connected to the decorative piece to fix the fixing shell to the first fixing piece.

[0017] By arranging a first travel groove on the first fixing member and a locking protrusion on the second fixing member, the first fixing member and the second fixing member can be fixed or separated by sliding the locking protrusion in the first travel groove. The installation structure has few parts, simple operation, and is easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the sampler installation structure of a pulmonary function meter and the sampler installation state according to an embodiment;

[0020] Figure 2 for Figure 1 The spirometry sampler mounting structure and the exploded view of the sampler are shown;

[0021] Figure 3 is a structural schematic diagram of a first fixing member according to an embodiment;

[0022] Figure 4 is a schematic structural diagram of a second fixing member according to an embodiment;

[0023] Figure 5 This is a schematic structural diagram of a handle according to an embodiment;

[0024] Figure 6A cross-sectional view of a mounting structure for a pulmonary function meter sampler according to an embodiment;

[0025] Figure 7 for Figure 6 The enlarged structural diagram of the part A is shown. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1 and Figure 2 The present invention provides a pulmonary function meter, comprising a sampler 00, a pulmonary function meter body, and a pulmonary function meter sampler mounting structure 100 provided in an embodiment of the present invention, wherein the pulmonary function meter sampler mounting structure 100 comprises a first fixing member 10 and a second fixing member 20, the pulmonary function meter body comprises a handle 30, the sampler 00 is detachably connected to the first fixing member 10, and the second fixing member 20 is fixedly connected to the handle 30. When it is necessary to fix the sampler 00 on the handle 30, the first fixing member 10 and the second fixing member 20 are first connected, and the first fixing member 10 can be rotated relative to the second fixing member 20, and then the second fixing member 20 is fixedly connected to the handle 30. The sampler 00 is then connected to the first fixing member 10. At this time, the sampler 00 can be locked with the first fixing member 10 and the second fixing member 20 by rotating the sampler 00 so as to cause relative rotation between the first fixing member 10 and the second fixing member 20, thereby achieving fixation of the sampler 00 on the pulmonary function meter body. When the sampler 00 needs to be disassembled for inspection or replacement, the sampler 00 is rotated again to cause the first fixing member and the second fixing member 20 to rotate relative to each other, thereby releasing the locking state between the sampler 00 and the first fixing member, and the sampler 00 can be removed from the pulmonary function meter body. By using the pulmonary function meter sampler mounting structure 100 provided by the embodiment of the present invention in the pulmonary function meter, the pulmonary function meter sampler mounting structure 100 has fewer parts, a simple structure, and is easy to operate, making the installation and removal of the sampler 00 more convenient and labor-saving, and can avoid deformation and damage to the sampler 00 during the installation and disassembly process.

[0028] See also Figures 2 to 4The present invention also provides a pulmonary function meter sampler mounting structure 100, including a first fixing member 10 and a second fixing member 20, the first fixing member 10 and the second fixing member 20 are detachably connected, the first fixing member 10 is provided with a first travel groove 11, the first travel groove 11 includes a first end 111 and a second end 112 opposite to each other, the second fixing member 20 is provided with a first accommodating cavity K1, the inner wall of the first accommodating cavity K1 is provided with a locking protrusion 21, the first fixing member 10 is accommodated in the first accommodating cavity K1, the first fixing member 10 can slide and rotate relative to the second fixing member 20, so that the locking protrusion 21 extends into the first travel groove 11 and slides in the first travel groove 11, when the locking protrusion 21 slides to the first end 111, the locking protrusion 21 is engaged with the first travel groove 11, and the first fixing member 10 and the second fixing member 20 are locked, and when the locking protrusion 21 slides to the second end 112, the first fixing member 10 and the second fixing member 20 are unlocked.

[0029] Specifically, the first travel groove 11 includes a first sliding groove 113 and a first locking groove 114. The first sliding groove 113 extends in a direction parallel to the axis 60 of the first accommodating cavity K1. The first locking groove 114 is perpendicular to and connected to the first sliding groove 113. The first end 111 is the end of the first locking groove 114 away from the first sliding groove 113, and the second end 112 is the common end of the first sliding groove 113 and the first locking groove 114. When the first fixing member 10 moves toward the second fixing member 20 in a direction parallel to the axis 60 of the first accommodating cavity K1, the locking protrusion 21 moves along the first sliding groove 113. When the locking protrusion 21 slides to the second end 112, the locking protrusion 21 abuts the second end 112, and the first fixing member 10 no longer extends deeper into the first accommodating cavity K1. In other words, by properly designing the length of the first sliding groove 113, the installation height of the first fixing member 10 within the first accommodating cavity K1 of the second fixing member 20 can be reasonably controlled. Since the first locking groove 114 is perpendicular to the first sliding groove 113, at this time, by making the first fixing member 10 and the second fixing member 20 rotate relative to each other, the locking protrusion 21 can slide into the first locking groove 114 along the first sliding groove 113, and the locking protrusion 21 slides in the first locking groove 114. When the locking protrusion 21 slides to the first end 111, the locking protrusion 21 abuts against the first end 111 to lock the first fixing member 10 and the second fixing member 20.

[0030] By providing a first travel groove 11 on the first fixing member 10 and a locking protrusion 21 on the second fixing member 20, the first fixing member 10 and the second fixing member 20 can be fixed or separated by sliding the locking protrusion 21 and the first travel groove 11. This installation structure has few parts, simple operation, and is easy to install and disassemble.

[0031] In one embodiment, see Figure 2 and Figure 3The spirometer sampler mounting structure 100 further includes a connector 40, which is fixedly connected to the first fixing member 10. The connector 40 includes a fixing portion 41, which is accommodated in the first sliding groove 113. When the locking protrusion 21 slides to the second end 112, the fixing portion 41 abuts against the locking protrusion 21 to fix the first fixing member 10 to the second fixing member 21. Specifically, the first fixing member 10 includes a second accommodating cavity K2 with openings at both ends. The connector 40 is disposed at the opening of the second accommodating cavity K2 facing the second fixing member 20. The connector 40 can be fixed to the first fixing member 10 by screws or the like, or can be fixed to the first fixing member 10 by welding, boss clamping, or the like. This embodiment does not specifically limit this. The height of the fixing portion 41 is less than or equal to the length of the first sliding groove 113, so that the surface of the fixing portion 41 facing the first locking groove 114 is lower than the surface of the first locking groove 114 near the second fixing member 20, or is flush with the surface of the first locking groove 114 near the second fixing member 20. This allows the locking protrusion 21 to slide smoothly between the first sliding groove 113 and the first locking groove 114 when the first fixing member 10 and the second fixing member 20 are connected. When the sampler 00 needs to be replaced, the sampler 00 is first rotated to rotate the first fixing member 10 and the second fixing member 20 relative to each other, and the locking protrusion 21 slides from the first end 111 to the second end 112 and abuts against the fixing portion 41. At this time, when the sampler 00 is pulled out in a direction away from the second fixing member 20, the first fixing member 10 is correspondingly subjected to a pulling force in a direction away from the second fixing member 20. The first fixing member 10 accordingly applies an outward pulling force to the connecting member 40, and the fixing portion 41 is fixed in the first accommodating cavity K1 of the second fixing member 20 by abutting against the locking protrusion 21. Since the first fixing member 10 is fixedly connected to the connecting member 40, the first fixing member 10 is correspondingly fixed in the first accommodating cavity K1. By providing the connecting member 40 and making the connecting member 40 fixedly connected to the first fixing member 10, and the fixing portion 41 being accommodated in the first sliding groove 113, when the first fixing member 10 is subjected to a pulling force away from the second fixing member 20, the abutment between the fixing portion 41 and the locking protrusion 21 can prevent the first fixing member 10 from separating from the second fixing member 20, so that only the sampler 00 needs to be replaced, making the process of replacing the sampler 00 simpler and more efficient.

[0032] In one embodiment, see Figure 2 and Figure 4The spirometer sampler mounting structure 100 also includes a sensing component 50, which is connected to the second fixing member 20 and extends in a direction perpendicular to the axis 60 of the first accommodating cavity K1. The first fixing member 10 is provided with a second accommodating cavity K2, and an indicator groove 12 is provided on the outer peripheral surface of the first fixing member 10 facing away from the second accommodating cavity K2. When the first fixing member 10 and the second fixing member 20 are locked, the sensing component 50 is connected to the indicator groove 12. Specifically, a through hole 23 is formed on the side wall of the second fixing member 20, and the axis of the through hole 23 is perpendicular to the axis 60 of the first accommodating cavity K1. The sensing component 50 is installed in the through hole 23. When the second fixing member 20 and the first fixing member 10 rotate relative to each other, the sensing component 50 slides on the outer peripheral surface of the first fixing member 10. The position of the indicator groove 12 is set corresponding to the first end 111, that is, when the locking protrusion 21 slides to the first end 111, the sensing component 50 is exactly connected to the indicator groove 12. By connecting the sensing component 50 to the second fixing member 20 and providing an indicator groove 12 on the surface of the first fixing member 10 facing away from the second accommodating cavity K2, when the sensing component 50 is connected to the indicator groove 12, the user can be prompted that the second fixing member 20 and the first fixing member 10 are in a locked state, which is convenient for the user to obtain the connection status information of the first fixing member 10 and the second fixing member 20 at any time.

[0033] In one embodiment, see Figure 3 and Figure 4 A guide groove 42 is further provided on the surface of the fixing portion 41 facing away from the first accommodating cavity K1. The guide groove 42 is used to slide the sensing component 50 to the indicating groove 12. Specifically, the guide groove 42 includes a first guide groove 421 and a second guide groove 422. The first guide groove 421 extends along the direction of the axis, and the second guide groove 422 is perpendicular to and connected to the first guide groove 421. The end of the second guide groove 422 away from the first guide groove 421 is opposite to the indicating groove 12. The sensing component 50 slides from the first guide groove 421 into the second guide groove 422 and falls into the indicating groove 12 through the second guide groove 422. By providing the guide groove 42 on the positioning portion, the movement path of the sensing component 50 can be standardized, so that the sensing component 50 can accurately slide into the indicating groove 12.

[0034] In one embodiment, see Figure 3 and Figure 4The sensing assembly 50 includes a rolling member 52 and a moving member 51. The moving member 51 is provided with a mounting groove 511. The rolling member 52 is accommodated in the mounting groove 511 and is rotatably connected to the moving member 51. When the first fixed member 10 and the second fixed member 20 rotate relative to each other, the moving member 51 drives the rolling member 52 to move circumferentially along the surface of the first fixed member 10 facing away from the second accommodating cavity K2, while the rolling member 52 rotates. In this embodiment, the moving member 51 is a cylinder with a diameter equal to the diameter of the through hole 23. The moving member 51 is inserted into the through hole 23 to be fixed to the second fixed member 20. The side of the moving member 51 facing the first accommodating cavity K1 is provided with a mounting groove 511. The rolling member 52 is a ball. The diameter of the opening of the mounting groove 511 is smaller than the diameter of the ball to confine the ball within the mounting groove 511. In addition, the volume of the mounting groove 511 should be slightly larger than the volume of the ball, so that the ball can rotate around its own center point relative to the moving member 51 and can also move in a direction perpendicular to the axis 60 of the first accommodating cavity K1. When the first fixing member 10 is accommodated in the first accommodating cavity K1, the ball abuts against the surface of the first fixing member 10 facing away from the second accommodating cavity K2. When the first fixing member 10 rotates relative to the second fixing member 20, the movable member 51 rotates circumferentially relative to the first fixing member 10. The movable member 51 drives the rolling member 52 to roll circumferentially along the first fixing member 10. The rolling member 52 can roll around its own center point on the surface of the first fixing member 10 facing away from the second accommodating cavity K2 and can also move in a direction perpendicular to the axis 60 of the first accommodating cavity K1, thereby reducing the friction between the sensing component 50 and the first fixing member 10. When the rolling member 52 moves to a position corresponding to the indicator groove 12, the ball falls into the indicator groove 12, allowing the user to perceive that the first fixing member 10 and the second fixing member 20 are in a locked state. It is understood that in other embodiments, the rolling member 52 and the movable member 51 can also have other shapes, which are not limited to this embodiment. By making the sensing component 50 consist of a rolling member 52 and a moving member 51, while the moving member 51 drives the rolling member 52 to move, the rolling action of the rolling member 52 is also conducive to reducing the friction between the sensing component 50 and the first fixed member 10, thereby avoiding obstruction to the relative rotation between the second fixed member 20 and the first fixed member 10.

[0035] In one embodiment, see Figure 2The sampler 00 is provided with a second travel groove 02, which is arranged correspondingly to and communicates with the first travel groove 11. The locking protrusion 21 extends from the first travel groove 11 into the second travel groove 02 to fix the sampler 00 to the first fixing member 10. Specifically, the second travel groove 02 includes a second sliding groove 021 and a second locking groove 022. The second sliding groove 021 is arranged correspondingly to and communicates with the first sliding groove 113. The second locking groove 022 is arranged correspondingly to and communicates with the first locking groove 114. The locking protrusion 21 extends from the first locking groove 114 into the second locking groove 022 and engages with the second locking groove 022. The sampler 00 includes a mounting portion 01. The outer surface of the mounting portion 01 is provided with a second travel groove 02. The shape of the second travel groove 02 is the same as that of the first travel groove 11. The second sliding groove 021 is used to position the mounting portion 01 within the accommodating cavity K1. When the locking protrusion 21 slides to the position corresponding to the second sliding groove 021 and the second end 112, the locking protrusion 21 abuts the second sliding groove 021, positioning the mounting portion 01 at a predetermined depth within the accommodating cavity K1. When the locking protrusion 21 slides to the position corresponding to the second locking groove 022 and the first end 111, the locking protrusion 21 simultaneously engages with the first locking groove 114 and the second locking groove 022, thereby locking the sampler 00, the first fixing member 10, and the second fixing member 20 simultaneously. Since the second fixing member 20 is fixedly mounted to the handle 30, the sampler 00 is further secured to the handle 30. When the sampler 00 needs to be removed, the sampler 00 can be removed by rotating the sampler 00 or the handle 30 to slide the locking protrusion 21 to the position corresponding to the second sliding groove 021 and the second end 112. By setting a second stroke groove 02 on the sampler 00 and making the second stroke groove 02 correspond to the first stroke groove 11, the position of the locking protrusion 21 in the second stroke groove 02 can be controlled by rotating the sampler 00 or the handle 30, thereby achieving the purpose of installing and disassembling the sampler 00. The operation is simple, labor-saving, convenient and fast.

[0036] In one embodiment, see Figures 3 to 5The surface of the handle 30 facing the second fixing member 20 is provided with a positioning protrusion 31, and the surface of the second fixing member 20 facing the handle 30 is provided with a positioning groove 22. The positioning protrusion 31 engages with the positioning groove 22 to position the installation position of the second fixing member 20 and the handle 30. In this embodiment, the handle 30 includes an installation space K3 with one end open, and the second fixing member 20 is accommodated in the installation space K3. The inner surface of the installation space K3 is provided with a plurality of positioning protrusions 31, and the outer surface of the second fixing member 20 is provided with corresponding positioning grooves 22. When the second fixing member 20 moves into the installation space K3, the positioning protrusion 31 slides along the positioning groove 22. When the surface of the positioning protrusion 31 facing the second fixing member 20 abuts the positioning groove 22, the second fixing member 20 stops sliding into the installation space K3, thereby achieving the function of positioning the installation height of the second fixing member 20.

[0037] In another embodiment, the second fixing member 20 may be sleeved on the handle 30. In this case, a positioning protrusion 31 is provided on the inner surface of the second accommodating cavity K2, and a positioning groove 22 is provided on the outer surface of the handle 30. By designing the length of the positioning protrusion 31 or the positioning groove 22, the position of the handle 30 and the second fixing member 20 can be positioned.

[0038] In one embodiment, see Figure 2 、 Figure 6 and Figure 7The sampler 00 is provided with a first sampling channel 03, and the connecting member 40 also includes a second sampling channel 43. Both the first sampling channel 03 and the second sampling channel extend along the first direction X. The second sampling channel 43 is housed within the second accommodating chamber K2 and communicates with the first sampling channel 03. Specifically, there are two first sampling channels 03, each of which communicates with opposite sides of the screen 04 within the differential pressure sensor. Similarly, there are two second sampling channels 43, each corresponding to and communicating with the two first sampling channels 03. A sensor is also provided within the handle 30. One end of the second sampling channel 43 is connected to the first sampling channel 03, and the other end is corresponding to the sensor. The sensor senses the air pressure on both sides of the screen 04 through the two second sampling channels 43 and the first sampling channel 03 connected thereto. In addition, in a direction perpendicular to the first direction X, the gas inlet 031 of the first channel 03 and the gas inlet 431 of the second sampling channel 43 are offset. The sampler 00 in this embodiment is used to sample human respiratory gas, which contains a certain amount of moisture. By staggering the gas inlet 031 of the first channel 03 and the gas inlet 431 of the second sampling channel 43, this helps prevent moisture in the exhaled gas from condensing on the screen 04 and entering the interior of the handle 30 through the second sampling channel 43, thereby causing corrosion damage to electronic components such as sensors and controllers within the handle 30. By providing the second sampling channel 43 in the connector 40 and connecting the second sampling channel 43 to the first sampling channel 03, the sampler 00 installation structure not only allows the sampler 00 to be installed, but also connects the sampler 00 to the sensors within the handle 30, thereby preventing the sampling function of the sampler 00 from being affected.

[0039] In one embodiment, see Figure 2The sampler 00 includes a fixed shell 05 and a sampler body 06. The sampler body 06 is used to collect air pressure. The fixed shell 05 is located on the side of the sampler body 06 facing away from the spirometer mounting structure 100. It cooperates with the spirometer mounting structure 100 to secure and protect the sampler 00. The fixed shell 05 can be made of plastic, metal, or the like. The surface of the fixed shell 05 opposite the sampler body 06 is provided with a snap-fit groove 051, and the surface of the sampler body 06 is provided with a snap-fit protrusion 061. In this embodiment, there are four snap-fit grooves 051 and four snap-fit protrusions 061, each corresponding to one of the four snap-fit grooves 051. The corresponding matching design of the engaging groove 051 and the engaging protrusion 061 allows the engaging protrusion 061 to extend into the engaging groove 051 and engage with the protrusion when the fixed shell 05 is connected to the sampler body 06. Through the cooperative connection between the engaging protrusion 061 and the engaging groove 051, the fixed shell 05 and the sampler body 06 can be fixed with ease. In addition, by providing a structure for the protrusion and the groove to engage and fix, when the protrusion and the groove are engaged, the sound or slight vibration generated by the collision between the engaging protrusion 061 and the inner wall of the engaging groove 051 can also serve as a reminder to technicians that the fixed shell 05 and the sampler body 06 are in a fixed state.

[0040] In one embodiment, see Figure 2 The pulmonary function meter also includes a decorative member 110, which is disposed at the junction of the fixed housing 05 and the first fixing member 10 and is fixed to the first fixing member 10. In this embodiment, a mounting slot is defined on the end of the first fixing member 10 that connects to the fixed housing 05. A mounting block is provided on the decorative member 110, and the decorative member 110 is secured to the first fixing member 10 by inserting the mounting block into the mounting slot. In other embodiments, the decorative member 110 and the first fixing member 10 can also be secured using fasteners such as screws. The fixed housing 05 also includes a connecting portion 052, located at the end of the fixed housing 05 opposite the first fixing member 10. The connecting portion 052 is configured to connect to the decorative member 110 to secure the fixed housing 05 to the first fixing member 10. For example, the decorative member 110 is a permanent magnet, and the connecting portion 052 is a metal block. When the connecting portion 052 is connected to the decorative member 110, the permanent magnet's attraction to the metal secures the fixed housing 05 to the decorative member 110. By providing the decorative member 110 , the fixing shell 05 is fixed to the first fixing member 10 . At the same time, this fixing method has the advantages of simple structure, convenient operation, and easy processing and manufacturing.

[0041] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A pulmonary function instrument, characterized in that: The pulmonary function instrument includes a sampler, a pulmonary function instrument body and a pulmonary function instrument sampler mounting structure; the pulmonary function instrument sampler mounting structure includes a first fixing member and a second fixing member, the sampler is detachably connected to the first fixing member, the pulmonary function instrument body includes a handle, and the second fixing member is fixedly connected to the handle; the first fixing member is provided with a first travel groove, the first travel groove includes a first end and a second end opposite to each other, the second fixing member is provided with a first accommodating cavity, the inner wall of the first accommodating cavity is provided with a locking protrusion, the first fixing member is accommodated in the first accommodating cavity, the first fixing member can slide and rotate relative to the second fixing member, so that the locking protrusion extends into the first travel groove and slides in the first travel groove; When the locking protrusion slides to the first end, the locking protrusion engages with the first travel groove, and the first fixing member is locked with the second fixing member; when the locking protrusion slides to the second end, the first fixing member and the second fixing member are unlocked; the sampler is provided with a second travel groove, and the second travel groove is correspondingly arranged and communicated with the first travel groove, and the locking protrusion extends from the first travel groove into the second travel groove to fix the sampler to the first fixing member; The first travel groove includes a first sliding groove and a first locking groove, the first sliding groove extends in a direction parallel to the axis of the first accommodating cavity, the first locking groove is perpendicular to and connected to the first sliding groove, the locking protrusion slides into the first locking groove along the first sliding groove, and the locking protrusion slides in the first locking groove to lock the first fixing member and the second fixing member; The pulmonary function meter sampler mounting structure also includes a connecting piece, which is fixedly connected to the first fixing piece by screws or fixedly connected by boss clamping. The connecting piece includes a fixing portion, which is accommodated in the first sliding groove. When the locking protrusion slides to the second end, the fixing portion abuts against the locking protrusion to fix the first fixing piece to the second fixing piece.

2. The pulmonary function instrument according to claim 1, wherein: The pulmonary function meter sampler mounting structure also includes a sensing component, which is connected to the second fixing member and extends in a direction perpendicular to the axis of the first accommodating cavity. The first fixing member is provided with a second accommodating cavity, and the surface of the first fixing member facing away from the second accommodating cavity is provided with an indicator groove. When the first fixing member and the second fixing member are locked, the sensing component is connected to the indicator groove.

3. The pulmonary function instrument according to claim 2, wherein: A guide groove is provided on a surface of the fixing portion facing away from the first accommodating cavity, and the guide groove is used to enable the sensing component to slide to the indicating groove.

4. The pulmonary function instrument according to claim 3, wherein: The sensing component includes a rolling member and a moving member, the moving member is provided with a mounting groove, the rolling member is accommodated in the mounting groove and is rotatably connected to the moving member, and when the first fixed member and the second fixed member rotate relative to each other, the moving member drives the rolling member to move circumferentially along the surface of the first fixed member facing away from the second accommodating cavity, while the rolling member rotates.

5. The pulmonary function instrument according to claim 1, wherein: The sampler includes a first sampling channel, and the connecting piece includes a second sampling channel. The second sampling channel and the first sampling channel both extend and are connected along a first direction, and the gas inlet of the first sampling channel and the gas inlet of the second sampling channel are staggered in a direction perpendicular to the first direction.

6. The pulmonary function instrument according to claim 5, wherein: The sampler includes a fixed shell and a sampler body. The surface of the fixed shell opposite to the sampler body is provided with a snap-fit groove, and the surface of the sampler body is provided with a snap-fit protrusion. The snap-fit protrusion is matched with the snap-fit groove to fix the fixed shell to the sampler body.

7. The pulmonary function instrument according to claim 6, wherein: The pulmonary function instrument further includes a decorative piece fixed on the first fixing piece. The fixing shell includes a connecting portion connected to the decorative piece to fix the fixing shell to the first fixing piece.

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