A water level monitoring and alarm drainage device suitable for tunnels

Abstract

The invention discloses a drainage device for monitoring and alarming water level in a tunnel, which belongs to the technical field of tunnel alarms. The device comprises a mechanical sensing component and a vertical component arranged on the outer circle of the upper side thereof, a wire sensor and a display being fixed on the top of the mechanical sensing component, the vertical component comprising an inner ring, a middle ring and an outer ring with gradually increasing diameters, the inner ring being located inside the middle ring and being rotatably connected thereto, the middle ring being located inside the outer ring and being rotatably connected thereto, a cross bar being welded to the edge of the outer ring, a ring sheet being welded to one end of the cross bar facing away from the outer ring, the mechanical sensing component comprising a vertically erected sliding tube, a tube cover being threadedly connected to the upper end of the sliding tube, a graduated shaft being arranged inside the sliding tube, a limiting shaft being arranged on the outer circle of the lower side of the graduated shaft, a top flat shaft being arranged inside the upper end of the graduated shaft, and a shaft nut being fixedly sleeved on the outer circle of the lower end of the graduated shaft. The drainage device for monitoring and alarming water level in a tunnel, which is suitable for realizing sound and light alarm and active drainage, can realize sound and light alarm and active drainage.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel alarms, and in particular relates to a drainage device suitable for monitoring and alarming water level in tunnels. Background Art

[0002] A tunnel is an engineering structure buried in the ground. It is a form of utilizing underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels and military tunnels. The structure of a tunnel consists of two parts: the main building and ancillary equipment. The main building consists of a tunnel body and a tunnel portal. The ancillary equipment includes a car shelter, fire-fighting facilities, emergency communications and drainage facilities. Long tunnels also have special ventilation and lighting equipment.

[0003] In traffic tunnels, water level warning devices are often needed to warn of water levels. A full-road water level monitoring, alarm and drainage device with application number 201610070202.2 realizes full-road condition monitoring, display, alarm and automatic drainage functions. The main working mechanism is to monitor the water level through sensors, and then transmit the water level information to the system to realize water level control. However, this device is not suitable for use in tunnels. The main reason is that the device uses electronic devices to realize the water level, and there is a risk of losing function in the event of power outages and failures. Summary of the invention

[0004] The object of the present invention is to provide a water level monitoring and alarm drainage device suitable for tunnels to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a water level monitoring and alarm drainage device suitable for a tunnel, comprising a mechanical sensing component and a vertical component arranged on the outer circle of the upper side thereof, wherein a wire sensor and a display are fixed on the top of the mechanical sensing component;

[0006] The vertical assembly comprises an inner ring, a middle ring and an outer ring with gradually increasing diameters, the inner ring is located inside the middle ring and is rotatably connected thereto, the middle ring is located inside the outer ring and is rotatably connected thereto, a cross bar is welded to the edge of the outer ring, and a ring sheet is welded to one end of the cross bar facing away from the outer ring;

[0007] The mechanical sensing assembly comprises a vertically erected sliding tube, the upper end of the sliding tube is threadedly connected with a tube cover, a scale shaft is arranged inside the sliding tube, a limiting shaft is arranged on the lower outer circle of the scale shaft, a top flat shaft is arranged inside the upper end of the scale shaft, a shaft nut is sleeved and fixed on the outer circle of the lower end of the scale shaft, and a floating member is sleeved on the scale shaft above the shaft nut;

[0008] A cover through hole is formed at the center of the tube cover, and a cover thread portion is formed on the inner wall of the tube cover;

[0009] The outer circle of the upper end of the sliding tube is provided with a pipe thread portion, and the side wall of the sliding tube is provided with a pipe wall groove;

[0010] A shaft top hole is formed inside the upper end of the scale shaft, a scale groove is formed on the outer circle of the scale shaft, a shaft shoulder is formed on the lower side of the scale shaft, an outer shaft ring is formed on the outer side of the shaft shoulder, and a shaft thread portion is formed on the outer circle of the lower end of the scale shaft;

[0011] A center channel is provided at the axis of the floating component, and component through grooves distributed in a circular array are provided in the floating component.

[0012] Preferably, the rotational connection of the inner ring, middle ring and outer ring is completed by sheet screws and notch plates. The sheet screws pass through the notch plates and enter the threaded holes in the middle ring and the outer ring. A through hole is opened in the ring plate, and a triangular reinforcement plate is welded at the connection between the ring plate and the cross bar.

[0013] Preferably, a pair of side shafts are welded to the outer circumferential surfaces of the inner ring and the middle ring, and the axis center lines of the side shafts intersect with the axis center lines of the inner ring and the middle ring.

[0014] Preferably, a pair of ring openings are opened on the end faces of the middle ring and the outer ring, the threaded holes in the middle ring and the outer ring are located inside the ring openings, the notch piece and the ring openings are opened with semicircular openings, and the side axis is located in the semicircular openings in the notch piece and the ring openings.

[0015] Preferably, the scale shaft is located inside the through hole of the cover, the threaded portion of the cover is threadedly connected to the threaded portion of the pipe, and the inner ring is located below the threaded portion of the pipe.

[0016] Preferably, the top flat shaft is located inside the shaft top hole, the lower end of the scale shaft is located inside the middle track of the piece, and the shaft nut is located inside the lower end of the middle track of the piece.

[0017] Preferably, a through hole is opened in the outer circle of the shaft outer ring, the limiting shaft is located in the through hole in the outer circle of the shaft outer ring, and the limiting shaft is located inside the tube wall groove.

[0018] Preferably, the top surface of the shoulder is an inclined surface, and the shoulder is located above the floating part and the bottom surface is in contact with the floating part.

[0019] Preferably, the pull-wire sensor and the display are fixed above the pipe cover, the pull cable of the pull-wire sensor is fixed to the top horizontal shaft, and the pull-wire sensor is electrically connected to the drainage pump.

[0020] Preferably, the above-mentioned pull-wire sensor is provided with a lower limit value of the cable, an upper limit value of the cable and a drainage trigger value, and the above-mentioned drainage pump is provided with an upper limit value of power, a lower limit value of power, a water pump shut-off value and a water pump start-up value.

[0021] Technical effects and advantages of the present invention:

[0022] The water level monitoring, alarming and drainage device for tunnel water accumulation is suitable for use in tunnels. When the water level rises, the scale axis rises by the buoyancy of the floating part. When water accumulates in the tunnel, the scale axis will rise upward. The water level in the tunnel can be intuitively determined by the length of the scale axis crossing the pipe cover. Moreover, this process does not rely on the participation of electrical components and has high structural reliability. Even in a power-off state, the water level in the tunnel can be reminded to personnel in front of the tunnel. Since the reminder part of the scale axis is located at the top of the pipe cover, which is located at a higher position, the probability of being submerged by water is small.

[0023] The combined structure of the inner ring, the middle ring and the outer ring plays the role of supporting the sliding pipe. The vertical component composed of the inner ring, the middle ring and the outer ring can keep the mechanical sensing component in a vertical state at all times, so as to obtain more accurate water level information. Moreover, this feature can fix the vertical component on the wall of the tunnel more arbitrarily during installation, and the fixing operation is relatively simple, and the construction difficulty is relatively low.

[0024] The water level is reflected by the value fed back by the pull-wire sensor. The pull-wire sensor has high measurement accuracy and can obtain and feedback relatively accurate water level information. In addition, the pull-wire sensor is independent of the mechanical sensing component and can be replaced directly and relatively simply in case of failure.

[0025] There is an opening on the end face of the tube cover, a tube wall groove on the side of the sliding tube, and a part through-groove inside the floating part. These features allow water to pass through relatively well. The outer ring of the shaft replaces the floating part to contact the inner wall of the mechanical sensing component, which can avoid the loss caused by the direct contact between the floating part and the inner wall of the sliding tube and extend the service life of the floating part. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of a vertical component structure of an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the vertical component separation state of an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of a mechanical sensing component according to an embodiment of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the mechanical sensing component in the separated state according to an embodiment of the present invention;

[0031] Figure 6 4 is a circuit connection principle diagram of an embodiment of the present invention.

[0032] In the figure: 1. vertical component; 101. inner ring; 102. middle ring; 103. outer ring; 1031. ring piece; 1032. cross bar; 104. sheet screw; 105. notched sheet; 106. side shaft; 107. ring mouth; 2. mechanical sensing component; 201. pipe cover; 2011. cover threaded part; 2012. cover through hole; 202. sliding pipe; 2021. pipe threaded part; 2022. pipe wall groove; 203. top flat shaft; 204. scale shaft; 2041. shaft top hole; 2042. scale groove; 2043. shaft shoulder; 2044. shaft outer ring; 2045. shaft threaded part; 205. limiting shaft; 206. floating part; 2061. part through groove; 2062. part middle way; 207. shaft nut; 3. wire pull sensor; 4. display. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Please refer to Figure 1-Figure 6 The water level monitoring and alarm drainage device suitable for tunnels shown in the figure comprises a mechanical sensing component 2 and a vertical component 1 arranged on the outer circle of the upper side thereof, a wire sensor 3 and a display 4 are fixed on the top of the mechanical sensing component 2, the wire sensor 3 and the display 4 are fixed above the pipe cover 201, the cable of the wire sensor 3 is fixed to the top flat shaft 203, the wire sensor 3 is electrically connected to the drainage pump, the wire sensor 3 is provided with a lower limit value of the cable, an upper limit value of the cable and a drainage trigger value, and the drainage pump is provided with an upper power limit value, a lower power limit value and a water pump shutdown value and the water pump start value, the power upper limit value is the value of the maximum working load of the drainage pump, the power lower limit value is the value of the minimum working load of the drainage pump, the water pump off value is the water level value when the drainage pump is turned off, the water pump start value is the value required to start the drainage pump, the water pump start value is determined according to the drainage value of the tunnel, the cable lower limit value is the measurement lower limit value of the cable sensor 3, the cable upper limit value is the measurement upper limit value of the cable sensor 3, the drainage trigger value is the value of the cable sensor 3 to start the water pump, and the model of the cable sensor 3 is MPS-S-1000-RS485.

[0035] refer to Figure 2-Figure 3The vertical component 1 includes an inner ring 101, a middle ring 102 and an outer ring 103 with gradually increasing diameters. The inner ring 101 is located inside the middle ring 102 and is rotatably connected thereto. The middle ring 102 is located inside the outer ring 103 and is rotatably connected thereto. A cross bar 1032 is welded to the edge of the outer ring 103. A ring sheet 1031 is welded to one end of the cross bar 1032 facing away from the outer ring 103. The rotational connection of the inner ring 101, the middle ring 102 and the outer ring 103 is completed by a sheet screw 104 and a notched sheet 105. The sheet screw 104 passes through the notched sheet 105 and enters into the threaded holes in the middle ring 102 and the outer ring 103. A through hole is opened in the ring sheet 1031. A triangular reinforcing plate is welded at the junction of the ring sheet 1031 and the cross bar 1032.

[0036] The ring piece 1031 is fixed to the wall by bolts passing through the through holes inside it. A pair of side shafts 106 are welded to the outer circumferential surfaces of the inner ring 101 and the middle ring 102. The axis line of the side shaft 106 intersects with the axis line of the inner ring 101 and the middle ring 102. A pair of ring openings 107 are opened on the end faces of the middle ring 102 and the outer ring 103. The threaded holes in the middle ring 102 and the outer ring 103 are located inside the ring openings 107. Semicircular openings are opened inside the notch piece 105 and the ring openings 107. The side shaft 106 is located in the semicircular openings in the notch piece 105 and the ring openings 107. The outside of the side shaft 106 is a clearance fit. The material of the vertical component 1 is aluminum alloy to reduce the overall weight of the vertical component 1.

[0037] refer to Figure 4-Figure 5 The mechanical sensing component 2 includes a vertically erected slide tube 202, the upper end of which is threadedly connected to a tube cover 201, a scale shaft 204 is provided inside the slide tube 202, a limiting shaft 205 is provided on the lower outer circle of the scale shaft 204, a top flat shaft 203 is provided inside the upper end of the scale shaft 204, a shaft nut 207 is sleeved and fixed on the outer circle of the lower end of the scale shaft 204, a floating member 206 is sleeved on the scale shaft 204 above the shaft nut 207, and the shaft nut 207 can be selectively fixed inside the lower end of the middle part 2062 and is in a state of being ... The tube cover 201 has an integrated structure, a cover through hole 2012 is provided at the center of the tube cover 201, a cover thread portion 2011 is provided on the inner wall of the tube cover 201, a tube thread portion 2021 is provided on the outer circle of the upper end of the sliding tube 202, a tube wall groove 2022 is provided on the side wall of the sliding tube 202, a shaft top hole 2041 is provided inside the upper end of the scale shaft 204, a scale groove 2042 is provided on the outer circle of the scale shaft 204, a shaft shoulder 2043 is provided on the lower side of the scale shaft 204, a shaft outer ring 2044 is provided on the outer side of the shaft shoulder 2043, and a shaft thread portion 2045 is provided on the outer circle of the lower end of the scale shaft 204;

[0038] The floating member 206 has a center channel 2062 at the axis line, and a ring array of grooves 2061 are formed in the floating member 206. The floating member 206 is made of solid low-density engineering plastic. The scale shaft 204 is located inside the cover hole 2012. The cover threaded portion 2011 is threadedly connected to the pipe threaded portion 2021. The inner ring 101 is located below the pipe threaded portion 2021. The top flat shaft 203 is located inside the shaft top hole 2041. The top flat shaft 203 is connected to the cable of the wire sensor 3. The lower end of the scale shaft 204 Located inside the center track 2062 of the component, the scale groove 2042 in the outer circle of the scale shaft 204 is filled with fluorescent paint, the shaft nut 207 is located inside the lower end of the center track 2062 of the component, a through hole is opened in the outer circle of the shaft outer ring 2044, the limiting shaft 205 is located in the through hole in the outer circle of the shaft outer ring 2044, the limiting shaft 205 is located inside the tube wall groove 2022, the top surface of the shaft shoulder 2043 is a slope, and the slope structure allows water to pass more smoothly, the shaft shoulder 2043 is located above the floating component 206 and the bottom surface is in contact with it.

[0039] Working principle:

[0040] The water level monitoring and alarm drainage device suitable for tunnels has an outer ring 103 in a fixed state, and the outer ring 103 and the middle ring 102 are in a rotational connection relationship, and the middle ring 102 and the inner ring 101 are in a rotational connection relationship. Due to the effect of gravity, the mechanical sensing component 2 will be in a vertical state, and the effect of the middle ring 102 and the inner ring 101 does not limit the swing of the mechanical sensing component 2, so that gravity is more directly reflected on the mechanical sensing component 2, so that the mechanical sensing component 2 remains in a vertical state;

[0041] When water enters the tunnel, the buoyancy of the water contacts the floating member 206 and pushes it upward, allowing the floating member 206 to slide along the inside of the slide tube 202. The floating member 206 pushes the scale shaft 204 upward. The number of scale grooves 2042 on the outside of the scale shaft 204 protruding from the pipe cover 201 reflects the water level of the accumulated water in the tunnel. The outer ring 2044 of the shaft contacts the inner wall of the slide tube 202 instead of the floating member 206, so as to prevent the floating member 206 from being excessively worn by the inner wall of the slide tube 202. The upward movement of the scale shaft 204 will pull the top flat shaft 203 to drive the cable of the pull-wire sensor 3, and trigger the drainage pump to work by stretching the pull-wire sensor 3, so as to discharge the water in the tunnel through the drainage pump.

[0042] An opening is formed on the end surface of the tube cover 201, a tube wall groove 2022 is formed on the side surface of the slide tube 202, and a member through groove 2061 is formed inside the floating member 206. These features allow water to pass through relatively well, thereby preventing water from accumulating inside the slide tube 202 and causing the floating member 206 to be unable to slide well inside the slide tube 202.

[0043] When water accumulates in the tunnel, the wire sensor 3 will display a value greater than the lower limit of the cable. When this value is higher than the drainage trigger value, the drainage pump will be started. The value above the drainage trigger value is the pump start value, and the value below the drainage trigger value is the pump shutdown value. When the value displayed by the wire sensor 3 increases, the output power of the drainage pump will also increase accordingly.

[0044] The above description is only a preferred specific implementation manner of the invention, but the protection scope of the invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the invention according to the technical scheme and inventive concept of the invention, which should be covered by the protection scope of the invention.

Claims

1. A water level monitoring and alarm drainage device suitable for use in a tunnel, comprising a mechanical sensing component (2) and a vertical component (1) arranged on the outer circle of the upper side thereof, wherein a pull-wire sensor (3) and a display (4) are fixed on the top of the mechanical sensing component (2), characterized in that: The vertical component (1) comprises an inner ring (101), a middle ring (102) and an outer ring (103) of gradually increasing diameters, the inner ring (101) being located inside the middle ring (102) and being rotatably connected thereto, the middle ring (102) being located inside the outer ring (103) and being rotatably connected thereto, a cross bar (1032) being welded to the edge of the outer ring (103), and a ring sheet (1031) being welded to one end of the cross bar (1032) facing away from the outer ring (103); The mechanical sensing component (2) comprises a vertically erected sliding tube (202), the upper end of the sliding tube (202) being threadedly connected to a tube cover (201), a scale shaft (204) being provided inside the sliding tube (202), a limiting shaft (205) being provided on the lower outer circle of the scale shaft (204), a top flat shaft (203) being provided inside the upper end of the scale shaft (204), a shaft nut (207) being sleeved and fixed on the outer circle of the lower end of the scale shaft (204), and a floating member (206) being sleeved on the scale shaft (204) above the shaft nut (207); The tube cover (201) has a cover through hole (212) at the center thereof, and the inner wall of the tube cover (201) has a cover thread portion (211); The outer circle of the upper end of the sliding tube (202) is provided with a tube thread portion (2021), and the side wall of the sliding tube (202) is provided with a tube wall groove (2022); The upper end of the scale shaft (204) is provided with a top hole (2041), the outer circumference of the scale shaft (204) is provided with a scale groove (2042), the lower side of the scale shaft (204) is provided with a shaft shoulder (2043), the outer side of the shaft shoulder (2043) is provided with a shaft outer ring (2044), and the lower end of the scale shaft (204) is provided with a shaft threaded portion (2045); A center channel (2062) is formed at the axis of the floating member (206), and member through grooves (2061) distributed in a circular array are formed in the floating member (206); The rotational connection between the inner ring (101), the middle ring (102) and the outer ring (103) is completed by a sheet screw (104) and a notch sheet (105); the sheet screw (104) passes through the notch sheet (105) and enters the threaded holes in the middle ring (102) and the outer ring (103); a through hole is formed in the ring sheet (1031); and a triangular reinforcing plate is welded at the connection between the ring sheet (1031) and the cross bar (1032); A pair of side shafts (106) are welded to the outer circumferential surfaces of the inner ring (101) and the middle ring (102), and the axis center lines of the side shafts (106) intersect with the axis center lines of the inner ring (101) and the middle ring (102); A pair of ring openings (107) are formed on the end surfaces of the middle ring (102) and the outer ring (103); the threaded holes in the middle ring (102) and the outer ring (103) are located inside the ring openings (107); the notch piece (105) and the ring openings (107) are both provided with semicircular openings; and the side shaft (106) is located inside the semicircular openings in the notch piece (105) and the ring openings (107); The scale shaft (204) is located inside the cover through-hole (2012), the cover threaded portion (2011) is threadedly connected to the pipe threaded portion (2021), and the inner ring (101) is located below the pipe threaded portion (2021); The top flat shaft (203) is located inside the shaft top hole (2041), the lower end of the scale shaft (204) is located inside the middle track (2062), and the shaft nut (207) is located inside the lower end of the middle track (2062); A through hole is opened in the outer circle of the shaft outer ring (2044), the limiting shaft (205) is located in the through hole in the outer circle of the shaft outer ring (2044), and the limiting shaft (205) is located inside the tube wall groove (2022).

2. The water level monitoring and alarm drainage device suitable for tunnels according to claim 1, characterized in that: The top surface of the shaft shoulder (2043) is an inclined surface; the shaft shoulder (2043) is located above the floating component (206) and the bottom surface is in contact with the floating component (206).

3. The water level monitoring and alarm drainage device suitable for tunnels according to claim 1, characterized in that: The pull-wire sensor (3) and the display (4) are fixed above the pipe cover (201), the pull cable of the pull-wire sensor (3) is fixed to the top flat shaft (203), and the pull-wire sensor (3) is electrically connected to the drainage pump.

4. The water level monitoring and alarm drainage device suitable for tunnels according to claim 3 is characterized by: The pull-wire sensor (3) is provided with a pull-wire lower limit value, a pull-wire upper limit value and a drainage trigger value, and the drainage pump is provided with a power upper limit value, a power lower limit value, a water pump shut-off value and a water pump start-up value.

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