Tunnel harmful gas monitoring device

Abstract

The utility model relates to a tunnel harmful gas monitoring device. A gas detection end of an existing gas monitor is exposed and is easy to collide and damage during use. A gas detection end head of the device is arranged at the top of a machine body, and an end head protective cover frame is arranged above the gas detection end head; the end protective cover frame comprises a telescopic U-shaped frame and a protective cover; inserting rods bent inwards are arranged at the bottoms of the telescopic U-shaped frames, and the inserting rods are inserted into inserting holes formed in the two sides of the machine body and can rotate in the inserting holes. The protective cover is arranged in the center of the top of the telescopic U-shaped frame and corresponds to the gas detection end downwards, and when the telescopic U-shaped frame extends upwards or contracts downwards, the protective cover is separated from the gas detection end or covers the gas detection end in a sleeving mode. The end protective cover frame is designed in the device, plays a proper role in protecting the gas detection end, is exposed when in use and covers the gas detection end when not in use, so that the gas detection end cannot be exposed outside for a long time, and the damage risk is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel air quality monitoring, and particularly relates to a tunnel harmful gas monitoring device. Background Technique

[0002] The environmental quality in the tunnel directly affects the traffic safety of the tunnel. Therefore, the monitoring and regulation of the air quality in the tunnel are particularly important. Vehicle emissions and exhaust gases in the tunnel are prone to accumulate, leading to air pollution. Poor ventilation is more likely to exacerbate the aggregation of pollutants. By monitoring the concentration of harmful substances in the air inside the tunnel, air pollution problems can be discovered and solved in a timely manner to ensure driving safety. In addition, the ventilation system built inside the tunnel can adjust the operating frequency according to the real-time condition of the air inside the tunnel, reduce the energy consumption of equipment such as fans in the system, and achieve the purpose of energy conservation and consumption reduction. The basis for adjusting the operating frequency of equipment such as fans is to master the real-time condition of the air inside the tunnel in real time.

[0003] At present, in order to monitor the concentration of pollutants in the air inside the tunnel, a gas monitor with a small volume and convenient use has been designed, which can be carried around for pollutant concentration monitoring. However, most components of the existing monitor are integrated in a casing with a relatively simple structure, and the gas detection end is exposed. During use, it is easily knocked and damaged, resulting in a decrease in the service life of the gas monitor.

[0004] Therefore, it is necessary to design a new monitoring device to overcome the above defects. Summary of the Invention

[0005] The purpose of the utility model is to provide a tunnel harmful gas monitoring device to solve the problem that the gas detection end of the existing monitoring device is exposed and is easily knocked and damaged.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A tunnel harmful gas monitoring device, the device includes a fuselage, a gas detection end, and an end protection cover frame. The gas detection end is arranged on the top of the fuselage, and the end protection cover frame is arranged above the gas detection end;

[0008] The end protection cover frame includes a telescopic U-shaped frame and a protection cover;

[0009] The bottom of the telescopic U-shaped frame has an insertion rod bent inward, and the insertion rod is inserted into the insertion holes arranged on both sides of the fuselage and can rotate in the insertion holes;

[0010] The protective cover is arranged at the center of the top of the telescopic U-shaped frame, corresponding downward to the gas detection end. When the telescopic U-shaped frame extends upward or contracts downward, the protective cover disengages from the gas detection end or covers the gas detection end.

[0011] Further, the telescopic U-shaped frame includes a connecting rod, a third spring and an auxiliary rod;

[0012] The connecting rod is L-shaped, with the bottom being the insertion rod and the top having an auxiliary rod insertion hole;

[0013] The auxiliary rod is U-shaped, with auxiliary rod insertion rods provided at the bottoms of both sides. The rod diameter of the auxiliary rod insertion rod is smaller than that of the auxiliary rod, and the auxiliary rod insertion rod is inserted into the auxiliary rod insertion hole;

[0014] The third spring is sleeved on the outer periphery of the auxiliary rod insertion rod, and both ends of the third spring are respectively fixed to the top of the connecting rod and the bottom of the auxiliary rod;

[0015] The protective cover is arranged at the center of the top of the auxiliary rod.

[0016] Further, a sleeve rope is connected to the bottom of the fuselage.

[0017] Further, a vertical fixing ring is arranged at the bottom of the fuselage, and a circular hole penetrating horizontally is arranged on the fixing ring;

[0018] A connecting column is fixed to the end of the sleeve rope, and a fixing hole penetrating horizontally is arranged on the connecting column;

[0019] The connecting column is inserted into the fixing ring, and the circular hole and the fixing hole are horizontally communicated and inserted with a round rod to be connected to each other.

[0020] Further, a vertical fixing plate is arranged at the bottom of the fuselage, on one side of the fixing ring. A horizontal through hole is arranged on the fixing plate, and the round rod is inserted into the through hole;

[0021] An enlarged end is provided at the end of the round rod. A first spring is sleeved on the round rod between the enlarged end and the fixing plate, and both ends of the first spring are respectively fixed to the enlarged end and the fixing plate.

[0022] Further, two symmetrically arranged positioning rods are arranged at the bottom of the fuselage inside the fixing ring. A positioning groove matching the positioning rod is arranged at the top of the connecting column, and the positioning rod is inserted into the positioning groove.

[0023] Further, a sleeve rope winding bottom rod is arranged on the side of the fuselage, and the sleeve rope is wound on the sleeve rope winding bottom rod.

[0024] Furthermore, a box-shaped slide rail is provided on the side of the fuselage. A chute is provided on the outer side of the slide rail. A slider is arranged inside the slide rail. A vertical push rod is connected to the top of the slider, and the top of the push rod passes through the slide rail and is exposed outside.

[0025] The sheathed rope winding bottom rod is fixed on the outside of the slider and exposed outside the chute.

[0026] Furthermore, a second spring is sleeved on the outer periphery of the push rod inside the slide rail. The two ends of the second spring are respectively fixed to the bottom inside the slide rail and the top of the slider.

[0027] Furthermore, ball grooves are provided on the front and rear sides of the slider and balls are embedded therein.

[0028] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0029] The present utility model provides a tunnel harmful gas monitoring device. A head protection cover frame is designed in the device and is arranged above the gas detection head. The head protection cover frame includes a telescopic U-shaped frame and a protection cover. The protection cover is arranged at the center of the top of the telescopic U-shaped frame and corresponds downward to the gas detection head. When the telescopic U-shaped frame extends upward or contracts downward, the protection cover can be separated from the gas detection head or cover the gas detection head. This design provides an appropriate protection for the gas detection head. It is exposed during use and covered when not in use, so that the gas detection head is not exposed for a long time during carrying and storage, effectively reducing the risk of damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 It is a structural schematic diagram of the present utility model.

[0032] Figure 2 It is a structural schematic diagram of the head protection cover frame.

[0033] Figure 3 It is a structural schematic diagram of the sheathed rope connection assembly.

[0034] Figure 4 It is a structural schematic diagram of the fixing ring and the connecting column.

[0035] Figure 5 It is a structural schematic diagram of the positioning groove and the positioning rod.

[0036] Figure 6 It is a schematic structural diagram of a slide rail and a slider.

[0037] Figure 7 It is a schematic diagram of the ball position.

[0038] The markings in the figure are:

[0039] 1. Body;

[0040] 2. Gas detection end;

[0041] 3. Sleeve rope connection assembly; 301. Fixed ring; 302. Round hole; 303. Connecting column; 304. Fixed hole; 305. Sleeve rope; 306. Fixed plate; 307. Round rod; 308. First spring; 309. Slide rail; 310. Slider; 311. Push rod; 312. Second spring; 313. Sleeve rope winding bottom rod; 314. Positioning groove; 315. Positioning rod; 316. Guide block; 317. Pull ring; 318. Ball;

[0042] 4. End protection cover frame; 41. Connecting rod; 42. Third spring; 43. Auxiliary rod; 44. Protection cover; 45. Telescopic rod; 46. Anti-slip pattern;

[0043] 5. Display screen;

[0044] 6. Operation button. Detailed implementation manners

[0045] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0046] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "central", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0047] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "connection" and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0048] Meanwhile, in the description of the present utility model, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Of course, such objects can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0049] In the specific implementation manner, the lower part of the Figure 1 device is defined as "top", the upper part is defined as "bottom", the side of the display screen 5 of the device is defined as "front", the back side of the display screen 5 is defined as "rear", from left to right is defined as "horizontal", and from top to bottom is defined as "vertical".

[0050] The environment inside the tunnel is relatively special and harsh, which causes the portable harmful gas monitoring device to be prone to falling and damage. In particular, the exposed gas detection end part is prone to being knocked and damaged, resulting in failure. The present utility model provides a tunnel harmful gas monitoring device, mainly designing a protection structure for the gas detection end to achieve the purpose of protecting the gas detection end. It should be noted that the device of the present utility model can be obtained by improving an existing gas detector, and the internal electronic components are the same as those of the existing gas detector. The improvement of the present utility model does not lie in this.

[0051] As Figure 1 , the device includes a fuselage 1, a gas detection end 2, and an end protection cover frame 4. The gas detection end 2 is arranged on the top of the fuselage 1, and the end protection cover frame 4 is arranged above the gas detection end 2. The display screen 5 and the operation buttons 6 are arranged on the front side of the fuselage 1.

[0052] As Figure 2 , the end protection cover frame 4 includes a telescopic U-shaped frame and a protection cover 44. Among them, the telescopic U-shaped frame includes a connecting rod 41, a third spring 42, and an auxiliary rod 43.

[0053] The connecting rod 41 is L-shaped, with an inserting rod bent inward at the bottom, which is inserted into the jacks provided on both sides of the fuselage 1 and can rotate within the jacks. The top has an auxiliary rod insertion hole. The auxiliary rod 43 is U-shaped, with auxiliary rod inserting rods provided at the bottoms of both sides. The rod diameter of the auxiliary rod inserting rod is smaller than that of the auxiliary rod 43. The auxiliary rod inserting rod is inserted into the auxiliary rod insertion hole. The rod diameter of the connecting rod 41 can be the same as that of the auxiliary rod 43. The third spring 42 is sleeved on the outer periphery of the auxiliary rod inserting rod, and both ends of the third spring 42 are respectively fixed to the top of the connecting rod 41 and the bottom of the auxiliary rod 43. The protective cover 44 is provided at the center of the top of the auxiliary rod 43.

[0054] The protective cover 44 is provided at the center of the top of the telescopic U-shaped frame, corresponding downward to the gas detection end 2. When the telescopic U-shaped frame extends upward or contracts downward, the protective cover 44 disengages from the gas detection end 2 or covers the gas detection end 2.

[0055] During use, the protective cover 44 is pulled upward, the third spring 42 is stretched, and the auxiliary rod inserting rod is pulled out from the auxiliary rod insertion hole. At this time, the vertical length of the telescopic U-shaped frame increases, and the protective cover 44 disengages from the gas detection end 2. At the same time, since the inserting rod of the connecting rod 41 can rotate within the jacks on both sides of the fuselage 1, the telescopic U-shaped frame can be flipped to the rear side of the fuselage 1 and placed on the back of the fuselage 1, then the gas detection end 2 is exposed and can start monitoring. After the monitoring is completed, the above operations are performed in reverse, and the protective cover 44 can cover the gas detection end 2, playing a protective role, so that the gas detection end 2 is not exposed for a long time during carrying and storage, reducing the risk of damage.

[0056] In some embodiments, anti-slip patterns 46 can be provided on the outer wall of the protective cover 44 to increase the friction force.

[0057] In order to further facilitate the carrying of this device and reduce the risk of dropping, a lanyard 305 can also be provided at the bottom of the fuselage 1. During use, the lanyard 305 can be looped around the wrist or neck to avoid dropping.

[0058] Such as Figures 3 - 5 , a vertical fixing ring 301 is provided at the bottom of the fuselage 1, and a horizontally penetrating round hole 302 is provided on the fixing ring 301. A connecting column 303 is fixed at the end of the lanyard 305, and a horizontally penetrating fixing hole 304 is provided on the connecting column 303. The connecting column 303 is inserted into the fixing ring 301, the round hole 302 and the fixing hole 304 are horizontally communicated and a round rod 307 is inserted to connect with each other, so that the lanyard 305 is installed at the bottom of the fuselage 1.

[0059] In addition, a vertical fixing plate 306 is provided at the bottom of the fuselage 1, on one side of the fixing ring 301. A horizontal through hole is provided on the fixing plate 306, and the round rod 307 is inserted into the through hole. An enlarged end is provided at the end of the round rod 307. A first spring 308 is sleeved on the round rod 307 between the enlarged end and the fixing plate 306. The two ends of the first spring 308 are respectively fixed to the enlarged end and the fixing plate 306.

[0060] During use, hold the pull ring 317 provided on the outside of the enlarged end, pull out the round rod 307 outward, the first spring 308 is stretched, and the round rod 307 is pulled out from the round hole 302 of the fixing ring 301, and the inner space of the fixing ring 301 is completely opened. At this time, insert the connecting column 303 so that the round hole 302 of the fixing ring 301 and the fixing hole 304 of the connecting column 303 are horizontally communicated. Then, release the pull ring 317, the first spring 308 contracts, pulling the round rod 307 to move leftward. When the round rod 307 is inserted into the round hole 302 of the fixing ring 301 again, it is inserted into the fixing hole 304 of the connecting column 303 at the same time, so that the fixing ring 301 and the connecting column 303 are fixed to each other, and the sleeve rope 305 is also fixed to the bottom of the fuselage 1 at the same time.

[0061] In other embodiments, in order to quickly horizontally communicate the round hole 302 of the fixing ring 301 and the fixing hole 304 of the connecting column 303, two symmetrically arranged positioning rods 315 can be provided at the bottom of the fuselage 1 inside the fixing ring 301, and a positioning groove 314 matching the positioning rod 315 is provided at the top of the connecting column 303. When the connecting column 303 is inserted into the fixing ring 301, the positioning rod 315 is inserted into the positioning groove 314 to prevent deviation during the installation and fixing process. At this time, the round hole 302 of the fixing ring 301 and the fixing hole 304 of the connecting column 303 are exactly horizontally communicated.

[0062] In some embodiments, a conical guiding block 316 can be provided at the insertion end of the round rod 307 to facilitate its movement in the openings of other components.

[0063] The sleeve rope 305 is soft and has a certain length, and it needs to be properly stored to prevent accidental dragging and dropping. In order to facilitate the storage of the sleeve rope 305, the present utility model provides a sleeve rope winding bottom rod 313 on the side of the fuselage 1, and the sleeve rope 305 can be wound around the sleeve rope winding bottom rod 313.

[0064] Such as Figure 6 and Figure 7, a box - type slide rail 309 is provided on the side of the fuselage 1. A chute is opened on the outer side of the slide rail 309. A slider 310 is arranged in the slide rail 309. A vertical push rod 311 is connected to the top of the slider 310, and the top of the push rod 311 passes through the slide rail 309 and is exposed. The rope - winding bottom rod 313 is fixed on the outer side of the slider 310 and is exposed outside the chute. A second spring 312 is sleeved on the outer periphery of the push rod 311 in the slide rail 309, and the two ends of the second spring 312 are respectively fixed at the bottom in the slide rail 309 and the top of the slider 310. Ball grooves are arranged on the front and rear sides of the slider 310 and ball bearings 318 are embedded therein, which can reduce the frictional force between the inner wall of the slide rail 309 and the two sides of the slider 310, making it more convenient for the slider 310 to slide on the inner wall of the slide rail 309.

[0065] During use, push the push rod 311 towards the bottom. The slider 310 moves downward in the slide rail 309. At the same time, the second spring 312 is compressed. The end of the traction rope 305 is pulled towards the side of the fuselage 1 and wound around the rope - winding bottom rod 313. After winding, insert the end of the rope 305 into the rope gap and fix it through friction. Then release the push rod 311. The second spring 312 resets and elongates, and the slider 310 moves upward in the slide rail 309, and the rope 305 is tightened. When it is necessary to release the rope 305, only need to push the push rod 311 towards the bottom again. The slider 310 moves downward in the slide rail 309, and the winding length of the rope 305 is shortened and it is naturally released.

[0066] The above uses specific examples to elaborate on the present utility model, which is only used to help understand the present utility model and is not intended to limit the present utility model. For those skilled in the technical field to which the present utility model belongs, according to the idea of the present utility model, several simple deductions, deformations or replacements can also be made.

Claims

1. A tunnel harmful gas monitoring device, characterized in that: The device includes a fuselage (1), a gas detection end (2) and an end protection cover frame (4). The gas detection end (2) is arranged on the top of the fuselage (1), and the end protection cover frame (4) is arranged above the gas detection end (2); The end protection cover frame (4) includes a telescopic U-shaped frame and a protection cover (44); The bottom of the telescopic U-shaped frame has a plug rod bent inward, and the plug rod is inserted into the jacks arranged on both sides of the fuselage (1) and can rotate in the jacks; The protection cover (44) is arranged at the center of the top of the telescopic U-shaped frame, corresponding downward to the gas detection end (2). When the telescopic U-shaped frame extends upward or contracts downward, the protection cover (44) disengages from the gas detection end (2) or covers the gas detection end (2).

2. The tunnel harmful gas monitoring device according to claim 1, characterized in that: The telescopic U-shaped frame includes a connecting rod (41), a third spring (42) and an auxiliary rod (43); The connecting rod (41) is L-shaped, with the bottom being the plug rod and the top having an auxiliary rod insertion hole; The auxiliary rod (43) is U-shaped, with auxiliary rod plug rods arranged at the bottoms of both sides. The rod diameter of the auxiliary rod plug rods is smaller than the rod diameter of the auxiliary rod (43), and the auxiliary rod plug rods are inserted into the auxiliary rod insertion holes; The third spring (42) is sleeved on the outer periphery of the auxiliary rod plug rods, and both ends of the third spring (42) are respectively fixed to the top of the connecting rod (41) and the bottom of the auxiliary rod (43); The protection cover (44) is arranged at the center of the top of the auxiliary rod (43).

3. The tunnel harmful gas monitoring device according to claim 1, characterized in that: A sleeve rope (305) is connected to the bottom of the fuselage (1).

4. The tunnel harmful gas monitoring device according to claim 3, characterized in that: A vertical fixing ring (301) is arranged at the bottom of the fuselage (1), and a circular hole (302) penetrating horizontally is arranged on the fixing ring (301); A connecting column (303) is fixed at the end of the sleeve rope (305), and a fixing hole (304) penetrating horizontally is arranged on the connecting column (303); The connecting column (303) is inserted into the fixing ring (301), and the circular hole (302) and the fixing hole (304) are horizontally communicated and inserted with a round rod (307) to be connected to each other.

5. The tunnel harmful gas monitoring device according to claim 4, characterized in that: A vertical fixing plate (306) is arranged at the bottom of the fuselage (1), on one side of the fixing ring (301). A horizontal through hole is arranged on the fixing plate (306), and the round rod (307) is inserted into the through hole; The end of the round rod (307) has an enlarged end head. A first spring (308) is sleeved on the round rod (307) between the enlarged end head and the fixing plate (306), and both ends of the first spring (308) are respectively fixed to the enlarged end head and the fixing plate (306).

6. The tunnel harmful gas monitoring device according to claim 5, characterized in that: At the bottom of the fuselage (1) inside the fixed ring (301), there are two symmetrically arranged positioning rods (315) on the left and right. At the top of the connecting column (303), there is a positioning groove (314) matching the positioning rod (315), and the positioning rod (315) is inserted into the positioning groove (314).

7. The tunnel harmful gas monitoring device according to claim 3, characterized in that: On the side of the fuselage (1), there is a rope-winding bottom rod (313), and the rope (305) is wound around the rope-winding bottom rod (313).

8. The tunnel harmful gas monitoring device according to claim 7, characterized in that: On the side of the fuselage (1), there is a box-type slide rail (309). A chute is provided on the outer side of the slide rail (309). A slider (310) is arranged inside the slide rail (309). At the top of the slider (310), there is a vertical push rod (311), and the top of the push rod (311) passes through the slide rail (309) and is exposed; The rope-winding bottom rod (313) is fixed on the outside of the slider (310) and is exposed outside the chute.

9. The tunnel harmful gas monitoring device according to claim 8, characterized in that: A second spring (312) is sleeved on the outer periphery of the push rod (311) inside the slide rail (309). The two ends of the second spring (312) are respectively fixed at the bottom inside the slide rail (309) and the top of the slider (310).

10. The tunnel harmful gas monitoring device according to claim 9, characterized in that: Ball grooves are provided on the front and rear sides of the slider (310), and balls (318) are embedded therein.

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