Gas detection auxiliary structure and gas detection device

Abstract

This application provides a gas detection auxiliary structure and a gas detection device, relating to the field of combustible gas detection technology. The gas detection auxiliary structure includes: a gas detection rod comprising a fixed end and a telescopic end disposed opposite each other, the length of the gas detection rod between the fixed end and the telescopic end being adjustable; a connecting frame comprising: a first bracket and a second bracket forming a preset angle, the first bracket being connected to the telescopic end, and the second bracket being rotatably connected to the end of the first bracket opposite to the telescopic end via a rotating mechanism, so that the second bracket can rotate relative to the first bracket and maintain their relative position at a specified angle; and a fixing base installed on the end of the second bracket opposite to the first bracket, the fixing base comprising: a support plate and multiple fixing mechanisms located on the outer periphery of the support plate for fixing the gas detector to the support plate.

Description

Technical Field

[0001] This application relates to the field of combustible gas detection technology, and in particular to a gas detection auxiliary structure and a gas detection device. Background Technology

[0002] Combustible gas detectors are extremely important in the chemical industry. Chemical plants involve many toxic and harmful gases, and gas leaks can cause serious harm to chemical equipment, operators, and the environment. Therefore, the leakage of toxic, harmful, and flammable gases is strictly prohibited.

[0003] Fixed combustible gas detectors are installed next to some important equipment in chemical plants. However, due to the distribution location and calculation cost, it is not possible to have a fixed gas detector for every piece of equipment and flange. This results in some locations not having combustible gas detectors for detection, requiring the use of portable combustible gas detectors. However, some equipment and flange locations are high above the ground platform and in confined space, which brings great risks and difficulties to the explosion detection work of on-site operators. Utility Model Content

[0004] The purpose of this application is to provide a gas detection auxiliary structure and a gas detection device to solve the technical problem that high and confined spaces pose significant difficulties and risks for operators in explosion detection work.

[0005] To address the aforementioned technical problems, this application provides the following technical solutions:

[0006] The first aspect of this application provides a gas detection auxiliary structure, which includes: a gas detection rod, which includes: a fixed end and a telescopic end arranged opposite to each other, and the length of the gas detection rod between the fixed end and the telescopic end is adjustable;

[0007] A connecting frame includes a first bracket and a second bracket, which form a preset angle. The first bracket is connected to the telescopic end, and the second bracket is rotatably connected to the end of the first bracket away from the telescopic end through a rotating mechanism, so that the second bracket can rotate relative to the first bracket and can maintain their relative positions at a specified angle.

[0008] A fixing base is installed on the end of the second bracket away from the first bracket. The fixing base includes a support plate and a plurality of fixing mechanisms located on the outer periphery of the support plate for fixing the gas detector to the support plate.

[0009] The rotation axis of the rotating mechanism extends perpendicularly to the extension and retraction direction of the explosion-detecting rod.

[0010] In some modified embodiments of the first aspect of this application, the rotating mechanism includes: a rotating shaft body and a driving part, the rotating shaft body is connected to the second bracket, the driving part is mounted on the first bracket, and the driving shaft of the driving part is coaxially and fixedly connected to the rotating shaft body, for driving the rotating shaft body to drive the second bracket to rotate relative to the first bracket.

[0011] In some modified embodiments of the first aspect of this application, the fixing mechanism includes: multiple pairs of T-shaped frame groups and multiple elastic fixing rings. Each pair of T-shaped frame groups includes two T-shaped frames disposed opposite to each other on the outer periphery of the support plate. The T-shaped frame includes intersecting vertical rods and horizontal rods. The vertical rods are vertically fixed to the support plate, and the middle part of the horizontal rods is fixed to the end of the vertical rods away from the support plate. The elastic fixing rings are sleeved on the vertical rods of the two T-shaped frames in the same group.

[0012] Among them, at least two elastic retaining rings are arranged in a cross pattern.

[0013] In some modified embodiments of the first aspect of this application, at least two support members are provided at intervals near the edge of the support plate close to the fixed end, and the support members are perpendicular to the support plate.

[0014] In some modified embodiments of the first aspect of this application, the fixing mechanism includes: multiple pairs of clamping components, each pair of clamping components including: two clamping members disposed opposite to each other, the two clamping members being movably disposed on the support plate, and the spacing of the clamping space formed between them being adjustable, the clamping members including: a vertical plate and a horizontal plate, the vertical plate being disposed perpendicular to the support plate, and the horizontal plate being fixed to the end of the vertical plate away from the support plate and facing the clamping space.

[0015] In some modified embodiments of the first aspect of this application, the fixing mechanism further includes: a plurality of telescopic drive units corresponding to each of the clamping members, the telescopic drive units being mounted on the support plate, and the drive end of the telescopic drive units being connected to the side of the vertical plate away from the clamping space, for driving the two opposing clamping members to move towards or away from each other.

[0016] In some modified embodiments of the first aspect of this application, the telescopic end of the explosion-detecting rod is rotatably connected to the first bracket, and the extension direction of the rotation axis of the two relative to each other is in the same direction as the telescopic direction of the explosion-detecting rod.

[0017] In some modified embodiments of the first aspect of this application, the explosion-detecting rod includes at least: a first rod, a second rod, and a third rod. The first rod and the second rod are respectively configured as hollow rods. The second rod is movably disposed inside the first rod. The third rod is movably disposed inside the second rod. Locking members are respectively provided between the first rod and the second rod, and between the second rod and the third rod, for fixing the relative positions of the first rod and the second rod, and the second rod and the third rod.

[0018] Wherein, the closed end of the first rod is the fixed end, and the end of the third rod that is away from the second rod is the telescopic end.

[0019] In some modified embodiments of the first aspect of this application, threaded portions that cooperate with each other are provided between the first rod and the second rod, and between the second rod and the third rod.

[0020] A second aspect of this application provides a gas detection device, which includes: a gas detector; and the aforementioned gas detection auxiliary structure, wherein the gas detector is mounted on a mounting base of the gas detection auxiliary structure.

[0021] Compared to existing technologies, the gas detection auxiliary structure and gas detection device provided in this application can stably install and fix the gas detector on the fixed base through the cooperation of the support plate of the fixed base and multiple fixing mechanisms. The length of the explosion-detecting rod can be adjusted according to different detection positions, and the connecting frame between the telescopic end of the explosion-detecting rod and the fixed base can be adjusted according to the detection position and space size, so that the second bracket can rotate relative to the first bracket to adjust the angle of the gas detector. This allows it to adapt to detection positions that are high above the ground and / or relatively narrow, meet on-site detection needs, and reduce the working difficulty and risk for operators. Attached Figure Description

[0022] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0023] Figure 1 A schematic diagram of the gas detection auxiliary structure provided in an embodiment of the present invention is shown.

[0024] Figure 2 The diagram schematically illustrates another angle of the gas detection auxiliary structure provided in this embodiment of the present invention.

[0025] Figure 3A schematic diagram of the fixing mechanism of the gas detection auxiliary structure provided in this embodiment of the present invention is shown.

[0026] Explanation of icon numbers:

[0027] 1. Explosion detector rod; 1a. Fixed end; 1b. Telescopic end; 11. First rod; 12. Second rod; 13. Third rod; 2. Connecting frame; 21. First bracket; 22. Second bracket; 31. Support plate; 32. Fixing mechanism; 321. T-shaped frame; 3211. Vertical rod; 3212. Horizontal rod; 322. Elastic fixing ring; 4. Rotating shaft body. Detailed Implementation

[0028] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0029] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0030] Example 1

[0031] Reference Appendix Figure 1 - Appendix Figure 3 Embodiment 1 of this utility model proposes a gas detection auxiliary structure, which includes: a gas detection rod 1, comprising a fixed end 1a and a telescopic end 1b arranged opposite to each other, and the length of the gas detection rod 1 between the fixed end 1a and the telescopic end 1b is adjustable; a connecting frame 2, comprising a first bracket 21 and a second bracket 22 forming a preset angle, the first bracket 21 being connected to the telescopic end 1b, and the second bracket 22 being rotatably connected to the end of the first bracket 21 opposite to the telescopic end 1b via a rotating mechanism, so that the second bracket 22 can rotate relative to the first bracket 21 and maintain their relative positions at a specified angle; and a fixing seat, installed on the end of the second bracket 22 opposite to the first bracket 21, the fixing seat comprising: a support plate 31 and a plurality of fixing mechanisms 32 located on the outer periphery of the support plate 31 for fixing a gas detector (not shown in the figure) to the support plate 31; wherein, the extension direction of the rotation axis of the rotating mechanism is perpendicular to the telescopic direction of the gas detection rod 1.

[0032] Specifically, the gas detection auxiliary structure provided in this embodiment is used to install a gas detector and can move the gas detector to a position that is high above the ground and / or relatively narrow. The auxiliary structure specifically includes: a gas detector rod 1, a connecting frame 2, and a fixing base. The fixing base is used to install and fix the gas detector, and the connecting frame 2 is used to realize the movable connection between the gas detector rod 1 and the fixing base. The gas detector rod 1 is configured as a telescopic rod structure, with its extension and telescopic directions in the same direction. The gas detector rod 1 includes a fixed end 1a and a telescopic end 1b arranged opposite to each other in its extension direction. The length of the gas detector rod 1 between the fixed end 1a and the telescopic end 1b is adjustable to achieve lengthening or shortening. The fixed end 1a can be held by the operator, and the telescopic end 1b is used to install the connecting frame 2 and the fixing base. Thus, the height of the gas detector on the fixing base can be adjusted by extending and retracting the gas detector rod 1, adapting to the detection of positions at different heights. To facilitate detection and adapt to some narrow detection positions, the technical solution adopted in this utility model sets the connecting frame 2 as an adjustable frame, which includes: a first support 21 and a second support 22, which form a preset angle. The preset included angle can be the initial included angle between the two, specifically, but not limited to, 90 degrees. The first bracket 21 is connected to the telescopic end 1b of the explosion-detecting rod 1, and the second bracket 22 is used to install the fixed base. The second bracket 22 is connected to the end of the first bracket 21 away from the telescopic end 1b through a rotating mechanism to realize the relative rotation of the second bracket 22 and the first bracket 21. The extension direction of the rotation axis of the two relative rotation through the rotating mechanism is perpendicular to the telescopic direction of the explosion-detecting rod 1. This design allows the position of the gas detector fixed to the fixed base to be swung and adjusted. By setting rotation damping or locking structure, the relative position of the first bracket 21 and the second bracket 22 can be fixed after rotation, thereby fixing the position and angle of the gas detector. The convenient adjustment of the gas detector angle is conducive to adapting to relatively narrow detection positions, and the explosion-detecting rod 1 is a rod structure, which occupies less space. That is, the gas detection auxiliary structure as a whole can be adapted to use in narrow spaces, with strong applicability, practicality and flexibility of use.

[0033] To enable the gas detector to be installed and fixed on the mounting base, the mounting base can be configured to include: a support plate 31 and multiple fixing mechanisms 32. The support plate 31 can be configured as a plate structure perpendicular to the second bracket 22, specifically, but not limited to, a rectangular plate structure. The multiple fixing mechanisms 32 are located on the outer periphery of the support plate 31 and can be used, but not limited to, to fix the gas detector to the support plate 31 by clamping, binding, or other means, and fit closely to the support plate 31.

[0034] Based on the above, this utility model embodiment proposes a gas detection auxiliary structure. Through the cooperation of the support plate 31 of the fixed base and multiple fixing mechanisms 32, the gas detector can be stably installed and fixed on the fixed base. The length of the explosion-detecting rod 1 can be adjusted according to the different detection positions. The connecting frame 2 between the telescopic end 1b of the explosion-detecting rod 1 and the fixed base can be adjusted according to the detection position and the space size, so that the second bracket 22 rotates relative to the first bracket 21 to adjust the angle of the gas detector. This allows it to adapt to detection positions that are high above the ground and / or relatively narrow, meeting the needs of on-site detection and reducing the difficulty and risk of operation for operators.

[0035] Further, see attached document. Figure 1 In a specific implementation, the rotating mechanism includes: a rotating shaft body 4 and a driving part (not shown in the figure). The rotating shaft body 4 is connected to the second bracket 22, the driving part is installed on the first bracket 21, and the driving shaft of the driving part is coaxially and fixedly connected to the rotating shaft body 4, for driving the rotating shaft body 4 to drive the second bracket 22 to rotate relative to the first bracket 21.

[0036] Specifically, in order to achieve relative rotation between the second bracket 22 and the first bracket 21, the technical solution adopted by this utility model can be configured to include a rotating shaft body 4 and a driving part. The driving part can be, but is not limited to, an electric driving part, i.e., a motor or similar structure. The rotating shaft body 4 is connected to the second bracket 22, and the driving part is installed on the first bracket 21. Specifically, it can be detachably connected. The driving shaft of the driving part can rotate automatically under power, and the driving shaft is coaxially fixedly connected to the rotating shaft body 4. Under the drive of the driving shaft, the rotating shaft body 4 can rotate synchronously with it, thereby driving the second bracket 22 to rotate relative to the first bracket 21, and can maintain the relative position and angle of the two after stopping rotation.

[0037] Further, see attached document. Figure 1 - Appendix Figure 3 In a specific implementation, the fixing mechanism 32 includes: multiple pairs of T-shaped frames 321 groups and multiple elastic fixing rings 322. Each pair of T-shaped frames 321 groups includes two T-shaped frames 321 arranged opposite to each other on the outer periphery of the support plate 31. The T-shaped frame 321 includes intersecting vertical rods 3211 and horizontal rods 3212. The vertical rods 3211 are vertically fixed to the support plate 31, and the middle part of the horizontal rods 3212 is fixed to the end of the vertical rods 3211 away from the support plate 31. The elastic fixing rings 322 are sleeved on the vertical rods 3211 of the two T-shaped frames 321 in the same group; wherein, at least two elastic fixing rings 322 are arranged crosswise.

[0038] Specifically, to ensure reliable fixation of the gas detector by the fixing mechanism 32, the technical solution adopted in this utility model allows the fixing mechanism 32 to be configured as multiple pairs of T-shaped frames 321, with each pair of T-shaped frames 321 cooperating with an elastic fixing ring 322. Specifically, each pair of T-shaped frames 321 includes two T-shaped frames 321 arranged opposite to each other on the outer periphery of the support plate 31. Each T-shaped frame 321 includes intersecting vertical rods 3211 and horizontal rods 3212. Both the horizontal rods 3212 and the vertical rods 3211 are straight rods with cross-sectional shapes such as circles or rectangles. The vertical rods 3211 are vertically fixed to the outer periphery of the support plate 31, and the middle part of the horizontal rods 3212 is fixed to the end of the vertical rods 3211 away from the support plate 31. Here, the middle part is not limited to the midpoint of the horizontal rod 3212's extension direction. The position can be between the two ends in its extension direction, so that the horizontal bar 3212 with a portion of elastic fixing ring 322 on both sides of the end of the vertical bar 3211 away from the support plate 31 is a closed elastic structure. It is sleeved on the two T-shaped frames 321 in the same group and located on the vertical bar 3211. The horizontal bar 3212 can limit the elastic fixing ring 322. During installation, after the gas detector is attached to the support plate 31, the elastic fixing ring 322 is connected to the multiple pairs of T-shaped frames 321 respectively. Among the multiple pairs of T-shaped frames 321, at least two of the corresponding elastic fixing rings 322 are arranged in a cross pattern to achieve stable binding of the gas detector, so that it is firmly attached to the support plate 31, and the elastic fixing ring 322 will not damage the surface of the gas detector.

[0039] Furthermore, in a specific implementation, at least two support members are provided at intervals on the edge of the support plate 31 near the fixed end 1a, and the support members are perpendicular to the support plate 31.

[0040] Specifically, during the combustible gas detection process, the weight of the gas detector is mostly borne by the elastic fixing ring 322. In order to further improve the stability of the gas detector installation, the technical solution adopted in this utility model can provide at least two support members at intervals on the bottom edge of the support plate 31 near the fixed end 1a, that is, during the combustible gas detection process. The support members are perpendicular to the support plate 31, which can realize reliable support for the bottom of the gas detector. The support members here can be, but are not limited to, rods, plates, etc.

[0041] Furthermore, in a specific implementation, the fixing mechanism 32 includes: multiple pairs of clamping components, each pair of clamping components including: two clamping members arranged opposite to each other, the two clamping members being movably disposed on the support plate 31, and the spacing of the clamping space formed between them being adjustable, the clamping members including: a vertical plate and a horizontal plate, the vertical plate being disposed perpendicular to the support plate 31, and the horizontal plate being fixed to the end of the vertical plate away from the support plate 31 and facing the clamping space.

[0042] Specifically, to ensure reliable fixation of the gas detector by the fixing mechanism 32, in addition to using multiple pairs of T-shaped brackets 321 and multiple elastic fixing rings 322, the fixing mechanism 32 in this invention can also employ multiple pairs of clamping components. Each pair of clamping components includes two clamping members arranged opposite each other, which are movably mounted on the support plate 31. The movable connection can be, but is not limited to, sliding connection, detachable connection, snap-fit, etc. This movable connection allows for adjustable spacing of the clamping space between the two clamping members, thereby enabling the clamping and disassembly of the gas detector. The holding components include a vertical plate and a horizontal plate. The vertical plate is vertically disposed on the surface of the support plate 31, and the horizontal plate is fixed to the end of the vertical plate away from the support plate 31 and facing the clamping space. When the two clamping components cooperate to clamp the gas detector between them, the two vertical plates are attached to the two sides of the gas detector and apply a certain clamping force to the gas detector. The two horizontal plates are attached to the surface of the gas detector away from the support plate 31, which can play a certain limiting role for the gas detector. Optimally, during the combustible gas detection process, the two clamping components can be located on the upper and lower sides of the gas detector to achieve stable clamping of the gas detector.

[0043] Furthermore, in a specific implementation, the fixing mechanism 32 further includes: a plurality of telescopic driving parts, corresponding to each of the clamping members. The telescopic driving parts are installed on the support plate 31, and the driving end of the telescopic driving parts is connected to the side of the vertical plate away from the clamping space, for driving the two opposing clamping members to move towards or away from each other.

[0044] Specifically, in order to achieve more effortless adjustment of the clamping components, the fixing mechanism 32 in the technical solution adopted by this utility model further includes: multiple telescopic drive units, each clamping component corresponding to one telescopic drive unit. The telescopic drive unit can be, but is not limited to, one of the following: electric telescopic rod, hydraulic telescopic rod, pneumatic telescopic rod, etc., or is not limited to these. The telescopic drive unit is installed on the surface of the support plate 31, and the drive end of the telescopic drive unit is connected to the side of the vertical plate away from the clamping space, for driving the two opposing clamping components to move towards or away from each other, thereby achieving efficient clamping or disassembly of the gas detector.

[0045] Furthermore, in a specific implementation, the telescopic end 1b of the explosion-detecting rod 1 is rotatably connected to the first bracket 21, and the extension direction of the rotation axis of the two relative to each other is in the same direction as the telescopic direction of the explosion-detecting rod 1.

[0046] Specifically, in order to further improve the flexibility of the auxiliary structure, the technical solution adopted in this utility model allows the telescopic end 1b of the explosion detection rod 1 to be rotatably connected to the first bracket 21, and the extension direction of the rotation axis of the two relative to each other is in the same direction as the telescopic direction of the explosion detection rod 1. Thus, during the process of combustible gas detection, the direction of the gas detector can be freely switched as needed, improving its adaptability.

[0047] Further, see attached document. Figure 1 In order to achieve the telescopic adjustment of the explosion detection rod 1, in a specific implementation, the explosion detection rod 1 includes at least: a first rod 11, a second rod 12, and a third rod 13. The first rod 11 and the second rod 12 are respectively set as hollow rods, and the bottom end of the first rod 11 and the top end of the second rod 12 are closed ends and the top end is an open end. The second rod 12 is movably disposed inside the first rod 11, and the third rod 13 is movably disposed inside the second rod 12. Here, "movable" means that it can perform reciprocating motion, thereby realizing the overall extension or shortening of the explosion detection rod 1. Among them, the closed end of the first rod 11 is the fixed end 1a mentioned above, and the end of the third rod 13 away from the second rod 12 is the telescopic end 1b mentioned above.

[0048] To maintain the current length of the explosion-detecting rod 1 after length adjustment, locking components can be provided between the first rod 11 and the second rod 12, and between the second rod 12 and the third rod 13, to fix the relative positions of the first rod 11 and the second rod 12, and the second rod 12 and the third rod 13. These locking components can be configured in various ways. For example, the locking component can be a locking screw, and multiple spaced screw holes can be provided along the extension direction on the first rod 11 and the second rod 12, and on the second rod 12 and the third rod 13, so that the locking screw connects to the corresponding screw holes; and / or, mutually cooperating threaded portions can be provided between the first rod 11 and the second rod 12, and between the second rod 12 and the third rod 13, thus achieving both telescopic adjustment and maintaining the relative positions after adjustment.

[0049] Of course, the method of adjusting the extension and retraction of the explosion detector rod 1 is not limited to the one mentioned above. The above method is a manual adjustment method. Automatic adjustment methods can also be used to adjust the extension and retraction of the explosion detector rod 1, such as electric drive or pneumatic drive. No specific limitation is made here.

[0050] Example 2

[0051] Embodiment 2 of this utility model proposes a gas detection device, which includes: a gas detector; and a gas detection auxiliary structure, wherein the gas detector is mounted on a mounting base of the gas detection auxiliary structure.

[0052] Specifically, the gas detection device provided in this embodiment includes a gas detector and a gas detection auxiliary structure. By installing the gas detector onto the fixing base of the gas detection auxiliary structure, convenient diagonal mounting can be achieved.

[0053] It should be noted that in the description of this specification, the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0054] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A gas detection aid structure, characterized by, include: An explosion detection rod includes a fixed end and a telescopic end arranged opposite to each other, and the length of the explosion detection rod between the fixed end and the telescopic end is adjustable; A connecting frame includes a first bracket and a second bracket, which form a preset angle. The first bracket is connected to the telescopic end, and the second bracket is rotatably connected to the end of the first bracket away from the telescopic end through a rotating mechanism, so that the second bracket can rotate relative to the first bracket and can maintain their relative positions at a specified angle. A fixing base is installed on the end of the second bracket away from the first bracket. The fixing base includes a support plate and a plurality of fixing mechanisms located on the outer periphery of the support plate for fixing the gas detector to the support plate. The rotation axis of the rotating mechanism extends perpendicularly to the extension and retraction direction of the explosion-detecting rod.

2. The gas detection auxiliary structure according to claim 1, characterized in that, The rotating mechanism includes a rotating shaft body and a driving part. The rotating shaft body is connected to the second bracket, and the driving part is installed on the first bracket. The driving shaft of the driving part is coaxially and fixedly connected to the rotating shaft body, and is used to drive the rotating shaft body to drive the second bracket to rotate relative to the first bracket.

3. The gas detection auxiliary structure according to claim 1, characterized in that, The fixing mechanism includes: multiple pairs of T-shaped frame groups and multiple elastic fixing rings. Each pair of T-shaped frame groups includes two T-shaped frames arranged opposite to each other on the outer periphery of the support plate. The T-shaped frame includes intersecting vertical rods and horizontal rods. The vertical rods are vertically fixed to the support plate, and the middle part of the horizontal rods is fixed to the end of the vertical rods away from the support plate. The elastic fixing rings are sleeved on the vertical rods of the two T-shaped frames in the same group. Among them, at least two elastic retaining rings are arranged in a cross pattern.

4. The gas detection auxiliary structure according to claim 3, characterized in that, The support plate has at least two support members spaced apart near the fixed end, and the support members are perpendicular to the support plate.

5. The gas detection auxiliary structure according to claim 1, characterized in that, The fixing mechanism includes: multiple pairs of clamping components, each pair of clamping components including: two clamping members arranged opposite each other, the two clamping members being movably disposed on the support plate, and the spacing of the clamping space formed between them being adjustable, the clamping members including: a vertical plate and a horizontal plate, the vertical plate being disposed perpendicular to the support plate, and the horizontal plate being fixed to the end of the vertical plate away from the support plate and facing the clamping space.

6. The gas detection auxiliary structure according to claim 5, characterized in that, The fixing mechanism further includes: a plurality of telescopic drive units, corresponding to each of the clamping members. The telescopic drive units are mounted on the support plate, and the drive end of the telescopic drive units is connected to the side of the vertical plate away from the clamping space, for driving the two opposing clamping members to move towards or away from each other.

7. The gas detection auxiliary structure according to claim 1, characterized in that, The telescopic end of the explosion-detecting rod is rotatably connected to the first bracket, and the extension direction of the rotation axis of the two relative to each other is in the same direction as the telescopic direction of the explosion-detecting rod.

8. The gas detection auxiliary structure according to claim 1, characterized in that, The explosion detection rod includes at least a first rod, a second rod, and a third rod. The first rod and the second rod are each hollow rods. The second rod is movably disposed inside the first rod. The third rod is movably disposed inside the second rod. Locking members are respectively provided between the first rod and the second rod, and between the second rod and the third rod, for fixing the relative positions of the first rod and the second rod, and between the second rod and the third rod. Wherein, the closed end of the first rod is the fixed end, and the end of the third rod that is away from the second rod is the telescopic end.

9. The gas detection auxiliary structure according to claim 8, characterized in that, The first rod and the second rod, and the second rod and the third rod are respectively provided with mutually mating threaded portions.

10. A gas detection device, characterized by, include: Gas detector; In any one of the gas detection auxiliary structures as described in claims 1-9, the gas detector is mounted on the mounting base of the gas detection auxiliary structure.

Images