Dust-proof mechanism for air inlet and gas analyzer

Abstract

The utility model relates to the technical field of dust prevention of gas analyzers, and in particular to a dust prevention mechanism for an air inlet and a gas analyzer, including a dust prevention component, which includes a square tube, a hard tube arranged at the air outlet end of the square tube, and a soft tube arranged at the air inlet end of the square tube, and the end of the hard tube away from the square tube is connected to the air inlet of the gas analyzer; a filter component, including a filter net. By setting the dust prevention component, the distance of air entering the gas analyzer is increased, so that after the gas analyzer is shut down, dust in the air cannot directly enter the gas analyzer through the air inlet, and when in use, the surrounding environment can be detected by pulling the soft tube so as not to affect the normal detection of the gas analyzer; at the same time, by installing multiple groups of filter components in a plug-in manner in the square tube, the dust in the air is further filtered through the filter net, thereby improving the dust prevention effect of the gas analyzer during use.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention of gas analyzers, in particular to a dust prevention mechanism of an air inlet and a gas analyzer. Background Art

[0002] Nuclear power plants are often equipped with a variety of gas detection instruments, among which the more common ones are infrared gas analyzers. This instrument is easy to move and the detection results are relatively accurate. The specific method of use is to put one end of the detection tube on the detection port, and the user holds the detection tube to conduct a more careful detection of the surrounding environment. The inside of the detection tube is often provided with a filter element to prevent dust from entering the device. However, during the detection process, the detection tube is prone to fall off, causing external dust to enter the device and affect the normal use of the device. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the problem that the detection tube of the above-mentioned existing gas analyzer is prone to fall off during the detection process, causing external dust to enter the inside of the device and affecting the normal use of the device, the present utility model is proposed.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a dust-proof mechanism for an air inlet, comprising: a dust-proof component, which includes a square tube, a hard tube arranged at the air outlet end of the square tube, and a soft tube arranged at the air inlet end of the square tube, and the end of the hard tube away from the square tube is connected to the air inlet of the gas analyzer; a filter component, which includes a filter screen, and an installation frame wrapped around the outer periphery of the filter screen, a rectangular slot that penetrates the inner cavity of the square tube is arranged on one side of the square tube, and the installation frame slides through the rectangular slot and is inserted into the square tube.

[0006] As a preferred solution of the dust-proof mechanism of the air inlet of the utility model, the inner wall of the square tube is provided with two groups of guide rails vertically connected to the rectangular slot, the guide rails are provided with sliding grooves that slide with the installation frame along the length direction, a locking frame is connected between the ends of the two groups of guide rails away from the rectangular slot, and a card slot matching the installation frame is provided on the side of the locking frame facing the rectangular slot, and the installation frame passes through one side of the rectangular slot and is inserted into the card slot.

[0007] As a preferred solution of the dustproof mechanism of the air inlet of the utility model, wherein: a hook is arranged on one side of the installation frame passing through the rectangular slot; a sliding member is arranged in the slot, and a limiting groove cooperating with the hook is arranged on one side of the sliding member adjacent to the installation frame.

[0008] As a preferred solution of the dustproof mechanism of the air inlet of the utility model, a first spring is arranged between one end of the sliding member and the corresponding side wall of the slot.

[0009] As a preferred solution of the dust-proof mechanism of the air inlet of the utility model, wherein: the hook end of the hook is bent toward the side close to the first spring;

[0010] The limiting groove includes a trapezoidal portion, a rectangular portion and a locking portion. The wide bottom of the trapezoidal portion is open and the side close to the first spring is an inclined surface. The narrow bottom of the trapezoidal portion and the rectangular portion are connected. The locking portion is connected to the side wall of the rectangular portion close to the first spring, and the locking portion is consistent with the contour of the hook body end of the hook.

[0011] As a preferred solution of the dustproof mechanism of the air inlet of the utility model, a handle is provided on the side of the installation frame away from the hook.

[0012] As a preferred solution of the dust-proof mechanism of the air inlet of the utility model, wherein: the end of the sliding member away from the first spring is provided with an oblique angle parallel to the inclined surface of the trapezoidal portion of the limiting groove; the side wall of the mounting frame corresponding to the oblique angle is provided with a through hole, and a disassembly rod sliding through the through hole is provided in the through hole, and a hemispherical push block is provided at the end of the disassembly rod close to the oblique angle, and the end of the disassembly rod away from the oblique angle passes through the handle and is provided with a pressing block.

[0013] As a preferred solution of the dust-proof mechanism of the air inlet of the utility model, a cylindrical groove is provided at the top of the handle corresponding to the disassembly rod, a second spring is provided in the cylindrical groove, the second spring is sleeved on the outside of the disassembly rod, and one end of the second spring is against the bottom surface of the cylindrical groove, and the other end of the second spring is against the pressing block.

[0014] The beneficial effects of the dust-proof mechanism of the air inlet of the utility model are as follows: by setting a dust-proof component, that is, adding a hard tube, a square tube and a hose at the air inlet of the gas analyzer, the distance that the air enters the gas analyzer is increased, so that after the gas analyzer is shut down, the dust in the air cannot directly enter the inside of the gas analyzer through the air inlet, and when in use, the surrounding environment can be detected by pulling the hose so as not to affect the normal detection of the gas analyzer; at the same time, by installing multiple groups of filter components in a plug-in manner in the square tube, the dust in the air is further filtered through the filter net, thereby improving the dust-proof effect of the gas analyzer during use, and during use, when replacing the filter net, there is no need to shut down the gas analyzer, only need to replace them one by one, and the replacement is simple and efficient.

[0015] Another object of the utility model is to provide a gas analyzer, which aims to solve the problem that the dustproof mechanism is not firmly installed.

[0016] In order to solve the above technical problems, the utility model also provides the following technical solutions: a gas analyzer, comprising the dust-proof mechanism of the air inlet, and; a gas analyzer body, a connecting assembly and an installing assembly; the connecting assembly comprises a baffle plate arranged at the front end of the top of the gas analyzer body, and a suspension bracket for fixing a hard tube is arranged at one end of the baffle plate close to the dust-proof mechanism; the installing assembly comprises a mounting seat arranged at the top of the gas analyzer body, a mounting groove for clamping with the baffle plate is arranged at the top of the mounting seat, a limit plate is rotatably installed on the top of the mounting seat through a damping shaft, and the limit plate can be rotated to above the mounting groove.

[0017] As a preferred solution of the gas analyzer of the utility model, wherein: the surface of the baffle is provided with two taking grooves; the two ends of the baffle cover the two corners at the front end of the top of the gas analyzer body.

[0018] The gas analyzer of the utility model has the following beneficial effects: by arranging the baffle plate and the suspension frame, the corners of the gas analyzer body are protected from collision, and at the same time, the dustproof mechanism can be suspended and supported, thereby improving the firmness of the installation of the dustproof mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the dust-proof mechanism of the air inlet of the utility model.

[0021] Figure 2 It is a schematic cross-sectional structure diagram of the square tube in the dust-proof mechanism of the air inlet of the utility model.

[0022] Figure 3 It is a schematic diagram of the connection structure between the filter component and the dustproof component in the dustproof mechanism of the air inlet of the utility model.

[0023] Figure 4 It is a partial structural schematic diagram of the square tube in the dust-proof mechanism of the air inlet of the utility model.

[0024] Figure 5 It is a structural schematic diagram of the filter screen in the dustproof mechanism of the air inlet of the utility model.

[0025] Figure 6 It is a structural schematic diagram of a sliding part in the dustproof mechanism of the air inlet of the utility model.

[0026] Figure 7 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0027] Figure 8 It is a schematic diagram of the overall structure of the gas analyzer described in the utility model. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1, reference Figure 1 to Figure 3 , which is the first embodiment of the utility model, and this embodiment provides a dustproof mechanism for an air inlet, including a dustproof component 100 and a filter component 200, wherein the dustproof component 100 is used to prevent dust from entering the interior of the gas analyzer when the gas analyzer performs gas detection, and the filter component 200 is used to filter dust particles in the air, thereby improving the dustproof effect.

[0032] Furthermore, the dustproof component 100 includes a square tube 101, a hard tube 102 arranged at the air outlet end of the square tube 101, and a soft tube 103 arranged at the air inlet end of the square tube 101, and one end of the hard tube 102 away from the square tube 101 is connected to the air inlet of the gas analyzer.

[0033] Specifically, the square tube 101 and the hard tube 102 ensure smooth air flow, allowing air to smoothly enter the gas analyzer for gas detection. When in use, the surrounding environment can be detected by pulling the hose 103. At the same time, by providing the square tube 101, the hard tube 102 and the hose 103, the distance for air to enter the gas analyzer is lengthened, which can effectively prevent dust from entering the gas analyzer from the air inlet after the gas analyzer is shut down, thereby achieving a dust-proof effect.

[0034] Furthermore, the filter assembly 200 includes a filter screen 201 and an installation frame 202 wrapped around the outer periphery of the filter screen 201. A rectangular slot 101a that penetrates the inner cavity of the square tube 101 is arranged on one side of the square tube 101. The installation frame 202 slides through the rectangular slot 101a and is inserted into the square tube 101.

[0035] Specifically, the filter 201 is used to filter dust particles in the inhaled air to improve the dust-proof effect of the gas analyzer. The installation frame 202 is inserted into the square tube 101 through the rectangular slot 101a in a plug-in manner, making it easier to disassemble and replace the filter 201. Any filter 201 can complete filtering independently. The user does not need to turn off the gas analyzer when replacing the filter 201, but only needs to replace them one by one.

[0036] In summary, by installing a dustproof mechanism at the air inlet of the gas analyzer and setting up a dustproof component 100, that is, installing a hard tube 102, a square tube 101 and a hose 103 at the air inlet of the gas analyzer, the distance that the air enters the gas analyzer is increased, so that after the gas analyzer is shut down, dust in the air cannot directly enter the gas analyzer through the air inlet, and when in use, the surrounding environment can be detected by pulling the hose 103 so as not to affect the normal detection of the gas analyzer; at the same time, by installing multiple groups of filter components 200 in a plug-in manner in the square tube 101, the dust in the air is further filtered by the filter net 201, thereby improving the dustproof effect of the gas analyzer during use, and during use, when replacing the filter net 201, there is no need to shut down the gas analyzer, only need to replace them one by one, and the replacement is simple and efficient.

[0037] Example 2, reference Figure 1 to Figure 7, which is the second embodiment of the utility model. Different from the previous embodiment, the inner wall of the square tube 101 is provided with two groups of guide rails 203 vertically connected to the rectangular slot 101a, and the guide rails 203 are provided with sliding grooves 203a slidably matched with the installation frame 202 along the length direction. A locking frame 204 is connected between the ends of the two groups of guide rails 203 away from the rectangular slot 101a, and the locking frame 204 is provided with a card slot 204a adapted to the installation frame 202 on the side facing the rectangular slot 101a, and the installation frame 202 passes through one side of the rectangular slot 101a and is inserted into the card slot 204a.

[0038] Specifically, the slide groove 203a of the guide rail 203 is slidably matched with the installation frame 202 to guide the installation frame 202 to prevent the installation frame 202 from being deflected when being inserted into the square tube 101, and the card slot 204a of the locking frame 204 is inserted into the installation frame 202 to position the installation frame 202 and determine that the installation frame 202 and the square tube 101 are inserted.

[0039] Furthermore, in order to fix the installation frame 202, a hook 205 is arranged on one side of the installation frame 202 that passes through the rectangular slot 101a; a sliding member 206 is arranged in the slot 204a, and a limiting groove 206a that cooperates with the hook 205 is arranged on one side of the sliding member 206 adjacent to the installation frame 202. When the hook 205 is embedded in the limiting groove 206a, the limiting groove 206a plays a role of limiting and fixing the hook 205, that is, it plays a role of fixing the installation frame 202.

[0040] Furthermore, a first spring 207 is provided between one end of the sliding member 206 and the corresponding side wall of the slot 204 a . The first spring 207 is used to rebound the sliding member 206 , and assist in fixing and disassembling the mounting frame 202 .

[0041] Specifically, the hook end of the hook 205 is bent toward the side close to the first spring 207; the limiting groove 206a includes a trapezoidal portion 206a-1, a rectangular portion 206a-2 and a locking portion 206a-3, the wide bottom of the trapezoidal portion 206a-1 is open and the side close to the first spring 207 is an inclined surface, the rectangular portion 206a-2 is connected to the narrow bottom of the trapezoidal portion 206a-1, the locking portion 206a-3 is connected to the side wall of the rectangular portion 206a-2 close to the first spring 207, and the locking portion 206a-3 is consistent with the contour of the hook end of the hook 205.

[0042] Working principle: When the installation frame 202 is inserted into the square tube 101 from the rectangular notch 101a, the installation frame 202 passes through one side of the rectangular notch 101a and is inserted into the slot 204a through the guiding effect of the slide slot 203a on the guide rail 203, and the hook 205 on its outer wall is engaged with the upper limit slot 206a of the sliding member 206 to complete the limit fixation of the installation frame 202; in the process of the hook 205 being inserted into the limit slot 206a, the hook end of the hook 205 first engages with the rectangular portion 206a-206a of the limit slot 206a. 2 inclined surfaces abut against each other, and then the sliding member 206 is pressed, so that the sliding member 206 moves toward the side of the first spring 207. The first spring 207 is compressed. As the installation frame 202 continues to be inserted and moved, the hook 205 moves into the rectangular portion 206a-2 of the limiting groove 206a. The first spring 207 is reset, driving the moving member to move back, so that the locking portion 206a-3 of the limiting groove 206a is engaged with the hook end of the hook 205, completing the limiting fixation of the hook 205, that is, completing the limiting fixation of the installation frame 202.

[0043] Furthermore, a handle 208 is provided on the side of the installation frame 202 away from the hook 205 to improve the convenience of installing and removing the installation frame 202.

[0044] Furthermore, in order to facilitate the replacement of the filter 201 (i.e., to facilitate the disassembly of the installation frame 202), the end of the sliding member 206 away from the first spring 207 is provided with an angle 206b parallel to the inclined surface of the trapezoidal portion 206a-1 of the limiting groove 206a; the side wall of the installation frame 202 corresponding to the angle 206b is provided with a through hole 202a, and a disassembly rod 209 sliding through the through hole 202a is provided, and a hemispherical push block 210 is provided at the end of the disassembly rod 209 close to the angle 206b, and the end of the disassembly rod 209 away from the angle 206b passes through the handle 208 and is provided with a pressing block 211.

[0045] Furthermore, a cylindrical groove 208a is provided at the top of the handle 208 corresponding to the disassembly rod 209, and a second spring 212 is provided in the cylindrical groove 208a. The second spring 212 is sleeved on the outside of the disassembly rod 209, and one end of the second spring 212 is against the bottom surface of the cylindrical groove 208a, and the other end of the second spring 212 is against the pressing block 211.

[0046] Working principle: when the filter 201 needs to be replaced, hold the handle 208 with the palm of your hand and squeeze the pressing block 211 with your thumb. The second spring 212 is compressed, driving the disassembly rod 209 and the hemispherical push block 210 at the other end of the disassembly rod 209 to move synchronously. The hemispherical push block 210 squeezes the bevel 206b and pushes the sliding member 206 to move toward the first spring 207. The first spring 207 is compressed. At the same time, the locking portion 206a-3 of the limit groove 206a and the hook end of the hook 205. At this time, the installation frame 202 can be pulled out.

[0047] After pulling out the installation frame 202, release the thumb, and under the reset action of the second spring 212, the pressing block 211, the disassembly rod 209, and the hemispherical push block 210 are driven to move and reset synchronously, and under the reset action of the first spring 207, the sliding member 206 is driven to reset; at the same time, after pulling out the installation frame 202, the filter 201 can be replaced, and after replacement, the installation frame 202 of the new filter 201 can be re-inserted into the square tube 101 from the rectangular notch 101a, which is convenient to operate.

[0048] Example 3, reference Figure 8 , which is the third embodiment of the utility model, further provides a gas analyzer, including the above-mentioned dust prevention mechanism, as well as a gas analyzer body 300, a connecting component 400 and an installation component 500.

[0049] Furthermore, the connection assembly 400 includes a baffle 401 disposed at the top front end of the gas analyzer body 300 , and a suspension bracket 402 for fixing the hard tube 102 is disposed at one end of the baffle 401 close to the dustproof mechanism.

[0050] Specifically, a suspension frame 402 is provided to support the dustproof mechanism.

[0051] Furthermore, the mounting assembly 500 includes a mounting base 501 arranged on the top of the gas analyzer body 300, and a mounting groove 501a is arranged on the top of the mounting base 501 to be engaged with the baffle 401. A limiting plate 502 is rotatably installed on the top of the mounting base 501 through a damping shaft, and the limiting plate 502 can be rotated to above the mounting groove 501a.

[0052] Specifically, during installation, the baffle 401 is fixedly engaged with the mounting groove 501a of the mounting seat 501, and the limit plate 502 is driven to rotate by rotating the damping shaft, and the limit plate 502 is rotated to above the mounting groove 501a to limit the baffle 401, thereby completing the fixation of the baffle 401.

[0053] Furthermore, two taking grooves 401 a are provided on the surface of the baffle 401 to facilitate the removal and installation of the baffle 401 .

[0054] Furthermore, two ends of the baffle 401 cover two corners at the top front end of the gas analyzer body 300 to provide anti-collision protection for the corners of the gas analyzer body 300 .

[0055] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0056] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0057] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A dust-proof mechanism for an air inlet, characterized in that: include, A dustproof component (100) comprises a square tube (101), a hard tube (102) arranged at the gas outlet end of the square tube (101), and a soft tube (103) arranged at the gas inlet end of the square tube (101), wherein one end of the hard tube (102) away from the square tube (101) is connected to the gas inlet of a gas analyzer; A filter assembly (200) comprises a filter screen (201) and a mounting frame (202) covering the outer periphery of the filter screen (201); a rectangular notch (101a) which is in communication with the inner cavity of the square tube (101) is arranged on one side of the square tube (101); the mounting frame (202) slides through the rectangular notch (101a) and is inserted into the square tube (101).

2. The dust-proof mechanism for the air inlet according to claim 1, characterized in that: The inner wall of the square tube (101) is provided with two groups of guide rails (203) vertically connected to the rectangular slot (101a); the guide rails (203) are provided with sliding grooves (203a) slidably matched with the installation frame (202) along the length direction; a locking frame (204) is connected between the ends of the two groups of guide rails (203) away from the rectangular slot (101a); the locking frame (204) is provided with a slot (204a) adapted to the installation frame (202) on the side facing the rectangular slot (101a); the installation frame (202) passes through one side of the rectangular slot (101a) and is inserted into the slot (204a).

3. The dust-proof mechanism for the air inlet according to claim 2, characterized in that: The installation frame (202) is provided with hooks (205) on one side passing through the rectangular slot (101a); A sliding member (206) is arranged in the slot (204a), and a limiting groove (206a) cooperating with the hook (205) is arranged on one side of the sliding member (206) adjacent to the installation frame (202).

4. The dust-proof mechanism for the air inlet according to claim 3, characterized in that: A first spring (207) is arranged between one end of the sliding member (206) and the corresponding side wall of the slot (204a).

5. The dust-proof mechanism for the air inlet according to claim 4, characterized in that: The hook end of the hook (205) is bent toward a side close to the first spring (207); The limiting groove (206a) comprises a trapezoidal portion (206a-1), a rectangular portion (206a-2) and a locking portion (206a-3); the wide bottom of the trapezoidal portion (206a-1) is open and the side close to the first spring (207) is an inclined surface; the rectangular portion (206a-2) is connected to the narrow bottom of the trapezoidal portion (206a-1); the locking portion (206a-3) is connected to the side wall of the rectangular portion (206a-2) close to the first spring (207), and the locking portion (206a-3) is consistent with the contour of the hook end of the hook (205).

6. The dust-proof mechanism for the air inlet according to any one of claims 3 to 5, characterized in that: A handle (208) is provided on the side of the installation frame (202) facing away from the hook (205).

7. The dust-proof mechanism for the air inlet according to claim 6, characterized in that: An end of the sliding member (206) away from the first spring (207) is provided with an oblique angle (206b) parallel to the inclined surface of the trapezoidal portion (206a-1) of the limiting groove (206a); The side wall of the installation frame (202) corresponding to the bevel (206b) is provided with a through hole (202a), and a disassembly rod (209) is provided in the through hole (202a) for sliding through. The end of the disassembly rod (209) close to the bevel (206b) is provided with a hemispherical push block (210), and the end of the disassembly rod (209) away from the bevel (206b) passes through the handle (208) and is provided with a pressing block (211).

8. The dust-proof mechanism for the air inlet according to claim 7, characterized in that: A cylindrical groove (208a) is provided at the top of the handle (208) corresponding to the disassembly rod (209), and a second spring (212) is provided in the cylindrical groove (208a). The second spring (212) is sleeved on the outside of the disassembly rod (209), and one end of the second spring (212) is against the bottom surface of the cylindrical groove (208a), and the other end of the second spring (212) is against the pressing block (211).

9. A gas analyzer, characterized in that: The dust-proof mechanism for the air inlet comprises any one of claims 1 to 8, and a gas analyzer body (300), a connecting component (400) and a mounting component (500); The connection assembly (400) comprises a baffle (401) arranged at the top front end of the gas analyzer body (300), and a suspension bracket (402) for fixing the hard tube (102) is arranged at one end of the baffle (401) close to the dustproof mechanism; The mounting assembly (500) comprises a mounting seat (501) arranged on the top of the gas analyzer body (300); a mounting groove (501a) is arranged on the top of the mounting seat (501) and is engaged with the baffle (401); a limit plate (502) is rotatably mounted on the top of the mounting seat (501) via a damping shaft, and the limit plate (502) can be rotated to above the mounting groove (501a).

10. The gas analyzer according to claim 9, characterized in that: The surface of the baffle (401) is provided with two taking grooves (401a); The two ends of the baffle (401) cover the two corners of the front end of the top of the gas analyzer body (300).

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