High gas tunnel construction safety detection device

Abstract

The utility model discloses a high-gas tunnel construction safety detection device, and relates to the technical field of tunnel construction safety. The device comprises a base, the top of the base is fixedly connected with a box body, the top of the box body is symmetrically and slidably connected with lifting columns, the upper ends of the two lifting columns are fixedly connected through a cross beam, the cross beam is symmetrically and fixedly connected with detection tubes, and the upper portions of the detection tubes are fixedly connected with gas sensors. The lower end of the detection pipe is communicated with the air inlet end of an air pump fixedly arranged on the top of the inner side of the box body through an air inlet hose. According to the utility model, the worm is rotated to drive the two screws to rotate, the position heights of the detection tube and the gas sensor can be quickly adjusted, the operation is convenient, the connection end of the gas guide branch tube is connected with an external gas collection device, and the hand valve is manually opened, so that the gas can be collected. The gas stored in the gas collecting tank can be guided out through the gas guiding branch pipe, the gas collecting tank does not need to be moved out of the box body by personnel, and the operation is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction safety, and particularly relates to a safety detection device for high-gas tunnel construction. Background Technique

[0002] During the tunnel construction process, due to different geological conditions, tunnel sections with relatively high gas concentrations are often encountered. Gas is a dangerous poisonous and explosive gas, which can cause damage to the bodies of construction workers. When the concentration rises and an explosion occurs, it will cause great harm to the tunnel project, resulting in equipment damage and casualties. Therefore, the monitoring and timely treatment of gas during tunnel construction are very important. After retrieval, the patent with the application number 202222262669.0 discloses a safety detection device for high-gas tunnel construction, including a base. A box body is arranged on the upper surface of the base, a vertical pipe is arranged on the upper surface of the box body, a screw rod is inserted at the upper end of the vertical pipe, a first bearing is arranged at the upper end of the screw rod, a clamping ring is fixedly connected to the outside of the first bearing. Through holes are respectively arranged on the box body at adjacent positions of each vertical pipe, a hose passes through the through holes, and the upper end is connected to a detection pipe. The detection pipe is clamped in the clamping ring. An air pump and a gas collecting tank are arranged in the box body. The air inlet end of the air pump is connected to one end of the hose extending into the box body, and the air outlet end of the air pump is communicated with the gas collecting tank.

[0003] However, during the actual use process, the applicant found that when adjusting the position height of the detection pipe, it is necessary for personnel to manually turn the handles arranged at the upper ends of the two screw rods one by one to adjust the position height of the two detection pipes. Moreover, as the upper ends of the screw rods continue to rise, personnel need to raise their hands to turn, which is not convenient enough. In view of this, we propose a safety detection device for high-gas tunnel construction. Content of the Utility Model

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] The utility model relates to a safety detection device for high-gas tunnel construction, which comprises a base. A box body is fixedly connected to the top of the base. Lifting columns are symmetrically and slidably connected to the top of the box body. The upper ends of the two lifting columns are fixedly connected by a cross beam. Detection pipes are symmetrically and fixedly connected to the cross beam. A gas sensor is fixedly connected to the upper part of the detection pipe. The lower end of the detection pipe is communicated with the air inlet end of an air pump fixedly arranged at the top inside the box body through an air inlet hose. The air outlet end of the air pump is communicated with a gas collecting tank fixedly arranged inside the box body through an air outlet hose. A one-way valve is fixedly sleeved on the air outlet hose. Screws are rotatably connected to the inside of the box body on both sides of the gas collecting tank through bearings. The upper ends of the two screws are respectively screwed into the two lifting columns. Worm wheels are fixedly sleeved on the lower ends of the two screws. A worm is rotatably connected to the inside of the box body in front of the worm wheel through a bearing. The worm is in transmission connection with the two worm wheels. The rear end of the worm extends to the outside of the box body and is fixedly provided with a hand crank. A controller is fixedly arranged at the rear side of the box body. An alarm is fixedly arranged on the box body on one side of the controller. A gas guide branch pipe is fixedly arranged at the front side of the gas collecting tank. A hand valve is fixedly sleeved on the gas guide branch pipe.

[0006] Preferably, one end of the gas guide branch pipe extends to the outside of the box body and is provided with a connection end.

[0007] Preferably, the hand valve is fixedly sleeved on the gas guide branch pipe inside the box body.

[0008] Preferably, battery packs are fixedly embedded in the box bodies on both sides of the worm. The controller is electrically connected to the battery packs through wires. The gas sensor, the alarm and the air pump are respectively electrically connected to the controller through wires.

[0009] Preferably, a box door is rotatably connected to one side of the base through a hinge shaft. An opening and closing handle is rotatably connected to the side of the box door far away from the hinge shaft.

[0010] Preferably, brake wheels are fixedly arranged at the four corner positions of the bottom of the base. A push handle is fixedly arranged at the rear side of the box body.

[0011] The utility model has the following beneficial effects:

[0012] For the safety detection device for high-gas tunnel construction of the utility model, by rotating the worm to drive the two screws to rotate, the lifting columns together with the cross beam can be driven to move up or down, so that the position height of the detection pipe and the gas sensor can be quickly adjusted, and the operation is convenient. By connecting the connection end of the gas guide branch pipe to an external gas collection device and manually opening the hand valve, the gas stored inside the gas collecting tank can be led out through the gas guide branch pipe, without the need for personnel to remove the gas collecting tank from the box body, which is more convenient. Brief Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 Rear view structural diagram of a safety detection device for high-gas tunnel construction of the present invention;

[0015] Figure 2 Front view structural diagram of a safety detection device for high-gas tunnel construction of the present invention;

[0016] Figure 3 Internal structural diagram of a safety detection device for high-gas tunnel construction of the present invention.

[0017] In the drawings, the list of components represented by each reference numeral is as follows:

[0018] 1. Base; 2. Box body; 21. Box door; 22. Push and support; 3. Lifting column; 4. Cross beam; 5. Detection tube; 6. Gas sensor; 7. Intake hose; 8. Controller; 9. Worm; 91. Hand crank; 10. Alarm; 11. Brake wheel; 12. Air pump; 13. Exhaust hose; 131. Check valve; 14. Gas collection tank; 141. Gas guide branch pipe; 15. Screw; 16. Worm gear; 17. Hand valve. Detailed Embodiment

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] Please refer to Figures 1-3 As shown, the present invention provides a technical solution:

[0021] A safety detection device for high-gas tunnel construction, including a base 1. A box body 2 is fixedly connected to the top of the base 1. Lifting columns 3 are symmetrically and slidably connected to the top of the box body 2. The upper ends of the two lifting columns 3 are fixedly connected by a cross beam 4. Detection pipes 5 are symmetrically and fixedly connected to the cross beam 4. A gas sensor 6 is fixedly connected to the upper part of the detection pipe 5. The lower end of the detection pipe 5 is communicated with the intake end of an air pump 12 fixedly installed at the inner top of the box body 2 through an intake hose 7. The outlet end of the air pump 12 is communicated with a gas collection tank 14 fixedly arranged inside the box body 2 through an outlet hose 13. A one-way valve 131 is fixedly sleeved on the outlet hose 13. Inside the box body 2 on both sides of the gas collection tank 14, screw rods 15 are rotatably connected through bearings. The upper ends of the two screw rods 15 are respectively screwed into the two lifting columns 3. The lower ends of the two screw rods 15 are fixedly sleeved with worm wheels 16. A worm 9 is rotatably connected through a bearing inside the box body 2 in front of the worm wheel 16. The worm 9 is in transmission connection with the two worm wheels 16. The rear end of the worm 9 extends to the outside of the box body 2 and is fixedly provided with a hand crank 91. By rotating the worm 9 to drive the two screw rods 15 to rotate, the lifting columns 3 can be driven to move up or down together with the cross beam 4, so that the position height of the detection pipe 5 and the gas sensor 6 can be quickly adjusted, and the operation is convenient. A controller 8 is fixedly installed at the rear of the box body 2. An alarm 10 is fixedly installed on the box body 2 on one side of the controller 8. Battery packs are fixedly embedded in the box body 2 on both sides of the worm 9. The controller 8 is electrically connected to the battery pack through a wire. The gas sensor 6, the alarm 10 and the air pump 12 are respectively electrically connected to the controller 8 through wires. One side of the base 1 is rotatably connected through a hinge shaft with a box door 21. A closing and opening handle is rotatably connected to the side of the box door 21 far from the hinge shaft. Brake wheels 11 are fixedly installed at the four corner positions of the bottom of the base 1. A push handle 22 is fixedly arranged at the rear of the box body 2. When detecting the gas safety during tunnel construction, the device can be pushed to move along the tunnel. During this process, the gas concentration inside the tunnel can be detected through the gas sensor 6. By manually rotating the hand crank 91 clockwise to drive the worm 9 to rotate, the worm wheel 16 can be driven to rotate together with the screw rod 15. The rotation of the screw rod 15 can drive the two lifting columns 3 to move up synchronously. The upward movement of the lifting columns 3 can drive the cross beam 4 together with the detection pipe 5 to move up, so that the height of the gas sensor 6 can be quickly adjusted. When it is detected that the gas concentration inside the tunnel is too high, at this time, the controller 8 can energize the alarm 10 to give an external alarm, and can drive the air pump 12 to rotate. The gas inside the tunnel is sucked into the gas collection tank 14 through the detection pipe 5, the intake hose 7 and the outlet hose 13 for storage.

[0022] A gas guide branch pipe 141 is fixedly arranged on the front side of the gas collecting tank 14. One end of the gas guide branch pipe 141 extends to the outside of the box body 2 and is provided with a connection end. A manual valve 17 is sleeved and fixed on the gas guide branch pipe 141. The manual valve 17 is sleeved and fixed on the gas guide branch pipe 141 inside the box body 2. By connecting the connection end of the gas guide branch pipe 141 with an external gas collecting device and manually opening the manual valve 17, the gas stored inside the gas collecting tank 14 can be exported through the gas guide branch pipe 141, without the need for personnel to remove the gas collecting tank 14 from the box body 2, which is more convenient. After the device is pushed out of the tunnel, the connection end of the gas guide branch pipe 141 can be connected with an external gas collecting device, and the manual valve 17 can be manually opened to export the gas stored inside the gas collecting tank 14.

[0023] Working principle: When in use, when detecting the gas safety in the tunnel construction, the device can be pushed along the tunnel. During this process, the gas sensor 6 can be used to detect the gas concentration inside the tunnel. By manually rotating the hand crank 91 clockwise to drive the worm 9 to rotate, the worm wheel 16 together with the screw 15 can be driven to rotate. The rotation of the screw 15 can drive the two lifting columns 3 to move upward synchronously. The upward movement of the lifting columns 3 can drive the cross beam 4 together with the detection pipe 5 to move upward, so that the height of the gas sensor 6 can be quickly adjusted. When it is detected that the gas concentration inside the tunnel is too high, at this time, the controller 8 can energize the alarm 10 to give an external alarm, and can drive the air pump 12 to rotate. The gas inside the tunnel is inhaled into the gas collecting tank 14 through the detection pipe 5, the intake hose 7 and the outlet hose 13 for storage. After the device is pushed out of the tunnel, the connection end of the gas guide branch pipe 141 can be connected with an external gas collecting device, and the manual valve 17 can be manually opened to export the gas stored inside the gas collecting tank 14.

[0024] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0025] The above is only the preferred embodiment of the present utility model, which does not limit the present utility model. Any modification of the technical solutions recorded in the foregoing embodiments and any equivalent replacement of some technical features both fall within the protection scope of the present utility model.

Claims

1. A high-gas tunnel construction safety detection device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a box body (2), and the top of the box body (2) is symmetrically slidably connected to a lifting column (3). The upper ends of the two lifting columns (3) are fixedly connected via a crossbeam (4). A detection tube (5) is symmetrically fixedly connected to the crossbeam (4). The upper part of the detection tube (5) is fixedly connected to a gas sensor (6). The lower end of the detection tube (5) is connected to the air inlet end of an air pump (12) fixedly installed on the top of the inner side of the box body (2) through an air inlet hose (7). The air outlet end of the air pump (12) is connected to a gas collecting tank (14) fixedly installed inside the box body (2) through an air outlet hose (13). A one-way valve (131) is sleeved and fixed on the air outlet hose (13). The interior of the box body (2) on both sides of the gas collecting tank (14) is rotated by a bearing. The casing (2) is rotatably connected with a screw rod (15), the upper ends of the two screw rods (15) are respectively screwed into the two lifting columns (3), the lower ends of the two screw rods (15) are both sleeved and fixed with a worm wheel (16), the interior of the casing (2) on the front side of the worm wheel (16) is rotatably connected with a worm rod (9) through a bearing, the worm rod (9) is transmission-connected with the two worm wheels (16), the rear end of the worm rod (9) extends to the outside of the casing (2) and is fixedly provided with a hand crank (91), the rear side of the casing (2) is fixedly provided with a controller (8), the casing (2) on one side of the controller (8) is fixedly provided with an alarm device (10), the front side of the gas collecting tank (14) is fixedly provided with a gas guide branch pipe (141), and a hand valve (17) is sleeved and fixedly provided on the gas guide branch pipe (141).

2. A high-gas tunnel construction safety detection device according to claim 1, characterized in that: One end of the air guide branch pipe (141) extends to the outside of the box body (2) and is provided with a connection end.

3. A high-gas tunnel construction safety detection device according to claim 2, characterized in that: The hand valve (17) is sleeved and fixed on the air guide branch pipe (141) inside the box body (2).

4. A high-gas tunnel construction safety detection device according to claim 1, characterized in that: Battery packs are embedded and fixed in the boxes (2) on both sides of the worm (9); the controller (8) is electrically connected to the battery pack via wires; and the gas sensor (6), alarm (10) and air pump (12) are electrically connected to the controller (8) via wires.

5. A high-gas tunnel construction safety detection device according to claim 1, characterized in that: One side of the base (1) is rotatably connected to a box door (21) via a hinge shaft, and a side of the box door (21) away from the hinge shaft is rotatably connected to an opening and closing handle.

6. A high-gas tunnel construction safety detection device according to claim 1, characterized in that: Brake wheels (11) are fixedly mounted at the four corner positions of the bottom of the base (1), and a support and pusher (22) is fixedly mounted on the rear side of the box body (2).

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