Multifunctional supporting device for road tunnel construction

Abstract

The invention provides a multifunctional supporting device for road tunnel construction, and belongs to the technical field of road tunnel construction, the multifunctional supporting device comprises a supporting assembly, an elastic supporting assembly, an alarm assembly, a water pressure detection assembly, a water supply assembly and a spraying assembly, and the elastic supporting assembly is arranged on the inner side of the supporting assembly; the supporting assembly is installed on the top wall of the supporting assembly and used for providing elastic supporting for the supporting assembly, the spraying assembly is installed on the top wall of the inner side of the supporting assembly, and the water supply assembly is installed on the side wall of the supporting assembly and used for supplying a water source to the spraying assembly through the supporting assembly. The water pressure detection assembly and the alarm assembly are installed on the side wall of the supporting assembly. Compared with the prior art, when the supporting assembly supports the road tunnel, dust generated in the tunnel construction process can be settled, meanwhile, deformation of the supporting assembly can be automatically monitored, and therefore safety in the construction process is improved.

Description

Technical Field

[0001] This invention belongs to the field of road tunnel construction technology, specifically a multi-functional support device for road tunnel construction. Background Technology

[0002] Currently, during road tunnel construction, it is necessary to support and protect the tunnel while construction is underway to prevent tunnel collapses and ground subsidence, thereby minimizing the impact on existing buildings.

[0003] Existing tunnel support systems are susceptible to deformation due to geological structures, rock stress, and construction factors when supporting tunnels. Once deformed, the support performance of the system will be greatly reduced. Moreover, the deformation of the support system is often not easily detected, putting construction workers in dangerous working conditions and compromising their safety. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a multifunctional support device for road tunnel construction.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A multi-functional support device for road tunnel construction includes a support assembly, an elastic support assembly, an alarm assembly, a water pressure detection assembly, a water supply assembly, and a sprinkler assembly. The elastic support component is disposed inside the support component and is used to provide elastic support to the support component. The spray assembly is installed on the inner top wall of the support assembly. The water supply component is installed on the side wall of the support component and is used to supply water to the sprinkler component through the support component. The water pressure detection component and the alarm component are installed on the side wall of the support component. The water pressure detection component is used to detect the water pressure flowing through the support component. When the water pressure detection component detects an increase in the water pressure flowing through the support component, the alarm component issues an alarm signal.

[0006] As a further improvement of the present invention: the support assembly includes a support vertical rod, a support horizontal rod, and an arc-shaped support rod. The support vertical rods are provided in two sets, which are distributed opposite to each other. The arc-shaped support rods are fixedly installed on the upper part of the two sets of support vertical rods, and the support horizontal rods are fixedly installed between the two sets of support vertical rods.

[0007] As a further improvement of the present invention: the elastic support assembly includes a support rod, a rotating shaft, a support sleeve, a first slider, and a first elastic element. The rotating shaft is rotatably mounted on the upper part of the support crossbar. The rotating shaft has an external thread. The first slider is sleeved on the outside of the rotating shaft and threadedly engaged with the external thread. The support sleeve is fixedly mounted on one side of the first slider. The lower end of the support rod extends into the inside of the support sleeve, and the upper end extends into the bottom of the arc-shaped support rod. The first elastic element is disposed inside the support sleeve to provide elastic support for the support rod.

[0008] As a further improvement of the present invention: the elastic support assembly further includes a second slider and a guide rod. The guide rod is fixedly installed on the upper part of the support crossbar, and the second slider is fixedly installed on the side wall of the support sleeve. The second slider is sleeved on the outside of the guide rod and movably cooperates with the guide rod.

[0009] As a further improvement of the present invention, a handwheel is also fixedly provided on the outside of the rotating shaft.

[0010] As a further improvement to the present invention: water supply channels are provided inside both the arc-shaped support rod and the support vertical rod. The water supply assembly includes a water pump and a water supply pipe. One end of the water supply pipe is connected to the output end of the water pump, and the other end is fixedly connected to the support vertical rod and communicates with the water supply channel inside the support vertical rod. The spray assembly includes a rigid spray pipe and a flexible spray hose. The rigid spray pipe is fixedly installed on the inner top wall of the arc-shaped support rod, and the flexible spray pipe is installed at the lower end of the rigid spray pipe and communicates with the rigid spray pipe.

[0011] As a further improvement of the present invention: a guide plate is fixedly provided on the side wall of the support vertical rod, and a first conductive ring is fixedly provided at the bottom of the guide plate. The water pressure detection assembly includes an extension tube, a piston block, a second elastic element, and a lifting rod. The extension tube is fixedly installed on the upper part of the water supply pipe and communicates with the water supply pipe. The piston block is movably installed inside the extension tube. One end of the lifting rod is fixedly connected to the upper part of the piston block, and the other end extends from the top of the extension tube to the top of the extension tube and passes through the first conductive ring and the guide plate in sequence. The lifting rod is movably engaged with the first conductive ring and the guide plate. One end of the second elastic element is connected to the upper part of the piston block, and the other end is connected to the inner top wall of the extension tube, which is used to provide elastic support for the piston block. A second conductive ring is fixedly installed on the outside of the lifting rod. The alarm assembly includes an alarm device and a power supply that are fixedly installed on the side wall of the support column. The power supply is connected to the second conductive ring via a wire, and the alarm is connected to the first conductive ring via a wire.

[0012] As a further improvement of the present invention: several sets of the elastic support components are provided above the support crossbar, and correspondingly, several sets of the spraying components are provided on the inner top wall of the arc-shaped support bar. Two sets of limiting rods are fixedly installed on the side wall of the support rod corresponding to each set of elastic support components. The two sets of limiting rods are horizontally distributed relative to each other. The spray rigid pipes corresponding to several spray components are located between the two sets of limiting rods and are vertically distributed. The spray hoses corresponding to several spray components are located above the two sets of limiting rods and are horizontally distributed.

[0013] As a further improvement of the present invention: the spray hose is a rubber hose or a plastic hose.

[0014] As a further improvement to the present invention: the alarm is an alarm light or a buzzer.

[0015] Compared with the prior art, the beneficial effects of the present invention are: In this embodiment of the invention, when the support component supports a road tunnel, an external water source is supplied to the spray component via a water supply component. The water is then output through the spray component to settle the dust generated during the road tunnel construction process. During this process, a water pressure detection component detects the pressure of the water flowing through the support component. When the support component deforms due to the road tunnel it supports, the water flow is obstructed, resulting in an increase in water pressure. The water pressure detection component detects this increase and triggers an alarm signal to alert the construction personnel inside the road tunnel. Furthermore, an elastic support component provides elastic support to the support component during its support of the road tunnel, thereby increasing its strength and improving the support effect. Compared to existing technologies, this method allows for the settling of dust generated during tunnel construction and automatic monitoring of the deformation of the support component, thus improving safety during construction. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a multi-functional support device for road tunnel construction. Figure 1 ; Figure 2 A schematic diagram of the structure of a multi-functional support device for road tunnel construction. Figure 2 ; Figure 3A schematic diagram of the structure of a multi-functional support device for road tunnel construction. Figure 3 ; Figure 4 for Figure 1 Enlarged view of region A in the middle; Figure 5 for Figure 1 Enlarged view of region B in the middle; Figure 6 for Figure 1 Enlarged diagram of region C in the middle; Figure 7 for Figure 2 Enlarged schematic diagram of region D in the middle; In the diagram: 10-Support assembly, 101-Support vertical rod, 102-Support horizontal rod, 103-Arc-shaped support rod, 104-Water supply channel, 105-Guide plate, 106-First conductive ring, 20-Elastic support assembly, 201-Support rod, 202-Rotating shaft, 203-External thread, 204-Support sleeve, 205-First slider, 206-Guide rod, 207-First elastic element, 208-Handwheel, 209-Limit rod, 30-Alarm assembly, 301-Alarm device, 302-Power supply, 40-Water pressure detection assembly, 401-Extension pipe, 402-Piston block, 403-Second elastic element, 404-Lifting rod, 405-Second conductive ring, 50-Water supply assembly, 501-Water supply pipe, 60-Sprinkler assembly, 601-Sprinkler rigid pipe, 602-Sprinkler hose. Detailed Implementation

[0017] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Please see Figure 1 , Figure 2 as well as Figure 3 This embodiment provides a multifunctional support device for road tunnel construction, including a support component 10, an elastic support component 20, an alarm component 30, a water pressure detection component 40, a water supply component 50, and a sprinkler component 60. The elastic support component 20 is disposed inside the support component 10 to provide elastic support for the support component 10. The sprinkler component 60 is installed on the inner top wall of the support component 10. The water supply component 50 is installed on the side wall of the support component 10 to supply water to the sprinkler component 60 through the support component 10. The water pressure detection component 40 and the alarm component 30 are installed on the side wall of the support component 10. The water pressure detection component 40 is used to detect the water pressure flowing through the support component 10. When the water pressure detection component 40 detects an increase in the water pressure flowing through the support component 10, the alarm component 30 issues an alarm signal.

[0022] When the support component 10 supports the road tunnel, the water supply component 50 supplies external water to the spray component 60 through the support component 10. The water is then output through the spray component 60 to help settle the dust generated during the road tunnel construction. During this process, the water pressure detection component 40 detects the water pressure flowing through the support component 10. When the support component 10 deforms due to the road tunnel it supports, the water flow through the support component 10 is obstructed, resulting in an increase in water pressure. The water pressure detection component 40 detects this increase in water pressure and triggers the alarm component 30 to issue an alarm signal, thereby alerting the construction personnel inside the road tunnel. When the support component 10 supports the road tunnel, the elastic support component 20 provides elastic support to the support component 10, thereby increasing the strength of the support component 10 and improving the support effect of the road tunnel.

[0023] Please see Figure 1 , Figure 2 as well as Figure 3In one embodiment, the support assembly 10 includes support vertical rods 101, support horizontal rods 102, and arc-shaped support rods 103. The support vertical rods 101 are provided in two sets, which are distributed opposite to each other. The arc-shaped support rods 103 are fixedly installed on the upper part of the two sets of support vertical rods 101, and the support horizontal rods 102 are fixedly installed between the two sets of support vertical rods 101.

[0024] When the support assembly 10 supports the road tunnel, the two sets of support vertical rods 101 act on the opposite sidewalls of the road tunnel, the arc-shaped support rod 103 acts on the top of the road tunnel, and the support horizontal rod 102 pulls across the two sets of support vertical rods 101 to strengthen the rigidity between the two sets of support vertical rods 101 and improve the support strength.

[0025] Please see Figure 4 as well as Figure 7 In one embodiment, the elastic support assembly 20 includes a support rod 201, a rotating shaft 202, a support sleeve 204, a first slider 205, and a first elastic element 207. The rotating shaft 202 is rotatably disposed on the upper part of the support crossbar 102, and the external thread 203 is provided on the outside of the rotating shaft 202. The first slider 205 is sleeved on the outside of the rotating shaft 202 and threadedly engaged with the external thread 203. The support sleeve 204 is fixedly disposed on one side of the first slider 205. The lower end of the support rod 201 extends into the inside of the support sleeve 204, and the upper end extends into the bottom of the arc-shaped support rod 103. The first elastic element 207 is disposed inside the support sleeve 204 and is used to provide elastic support for the support rod 201.

[0026] When the two sets of support vertical rods 101 act on the opposite sidewalls of the road tunnel and the arc-shaped support rod 103 acts on the top of the road tunnel, the workers can rotate the shaft 202. When the shaft 202 rotates, the external thread 203 engages with the threaded joint of the first slider 205, thereby driving the first slider 205 to move upward along the outside of the shaft 202. When the first slider 205 moves upward, it drives the support sleeve 204 to move upward synchronously. When the support sleeve 204 moves upward, it pushes the support rod 201 upward through the first elastic element 207. When the support rod 201 moves upward, its upper end acts on the inner top wall of the arc-shaped support rod 103. As the shaft 202 continues to rotate, the first elastic element 207 is gradually compressed, thereby providing elastic clamping force to the support rod 201. This elastic clamping force is transmitted to the arc-shaped support rod 103 through the support rod 201, thereby pressing the arc-shaped support rod 103 against the top of the road tunnel, thus improving the support effect of the arc-shaped support rod 103 on the top of the road tunnel.

[0027] Please see Figure 4In one embodiment, the elastic support assembly 20 further includes a second slider and a guide rod 206. The guide rod 206 is fixedly disposed on the upper part of the support crossbar 102, and the second slider is fixedly disposed on the side wall of the support sleeve 204. The second slider is sleeved on the outside of the guide rod 206 and movably cooperates with the guide rod 206.

[0028] When the rotating shaft 202 rotates and drives the external thread 203 to rotate, the support sleeve 204 can move upward smoothly through the movable cooperation between the second slider and the guide rod 206, and then the first elastic element 207 provides a stable elastic clamping force on the support rod 201.

[0029] Please see Figure 5 In one embodiment, a handwheel 208 is also fixedly provided on the outside of the rotating shaft 202 to facilitate the rotation operation of the rotating shaft 202.

[0030] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 7 In one embodiment, the arc-shaped support rod 103 and the support vertical rod 101 are both provided with interconnected water supply channels 104. The water supply assembly 50 includes a water pump (not shown in the figure) and a water supply pipe 501. One end of the water supply pipe 501 is connected to the output end of the water pump, and the other end is fixedly connected to the support vertical rod 101 and communicates with the water supply channel 104 inside the support vertical rod 101. The spray assembly 60 includes a spray rigid pipe 601 and a spray hose 602. The spray rigid pipe 601 is fixedly installed on the inner top wall of the arc-shaped support rod 103, and the spray hose 602 is installed at the lower end of the spray rigid pipe 601 and communicates with the spray rigid pipe 601.

[0031] External water is pumped from the water supply pipe 501 to the water supply channel 104 inside the support vertical rod 101 by a water pump. The water then enters the water supply channel 104 inside the arc-shaped support rod 103 from the water supply channel 104 inside the support vertical rod 101. After entering the water supply channel 104 inside the arc-shaped support rod 103, the water then enters the spray hose 602 through the spray rigid pipe 601 and is finally sprayed out through the spray hose 602 to settle the dust generated during the construction of the road tunnel.

[0032] Please see Figure 6In one embodiment, a guide plate 105 is fixedly installed on the side wall of the support vertical rod 101, and a first conductive ring 106 is fixedly installed at the bottom of the guide plate 105. The water pressure detection assembly 40 includes an extension tube 401, a piston block 402, a second elastic element 403, and a lifting rod 404. The extension tube 401 is fixedly installed on the upper part of the water supply pipe 501 and communicates with the water supply pipe 501. The piston block 402 is movably installed inside the extension tube 401. One end of the lifting rod 404 is fixedly connected to the upper part of the piston block 402, and the other end extends from the top of the extension tube 401 to the top of the extension tube 401 and passes through the first conductive ring 106 in sequence. The guide plate 105, the lifting rod 404 and the first conductive ring 106 and the guide plate 105 are movably engaged, one end of the second elastic member 403 is connected to the upper part of the piston block 402 and the other end is connected to the inner top wall of the extension tube 401, and is used to provide elastic support for the piston block 402. The second conductive ring 405 is fixedly provided on the outside of the lifting rod 404. The alarm assembly 30 includes an alarm 301 and a power supply 302 fixedly provided on the side wall of the support vertical rod 101. The power supply 302 is connected to the second conductive ring 405 through a wire, and the alarm 301 is connected to the first conductive ring 106 through a wire.

[0033] When the water pump delivers water through the water supply pipe 501 to the water supply channels 104 inside the support vertical rod 101 and the arc-shaped support rod 103, some water enters the extension pipe 401 through the water supply pipe 501. This pushes the piston block 402 upward along the extension pipe 401. As the piston block 402 moves upward, it causes the lifting rod 404 to move upward as well. At the same time, the second elastic element 403 is compressed. When the arc-shaped support rod 103 is providing normal support for the top of the road tunnel, the arc-shaped support rod 103 does not deform. At this time, the water supply channels 104 inside the arc-shaped support rod 103 are uniform in shape. The second elastic element 403 is compressed to a certain limit, so that the piston block 402 remains stable inside the extension pipe 401. The second conductive ring 405 is located below the first conductive ring 106 and does not contact the first conductive ring 106. The power supply 302 does not supply power to the alarm 301. 1. No alarm signal is issued; When the arc-shaped support rod 103 is deformed due to the road tunnel it supports, the water supply channel 104 inside the deformed arc-shaped support rod 103 is compressed, which reduces the diameter of the water supply channel 104. When the diameter of the water supply channel 104 decreases, the pumping pressure of the water pump for the subsequent water source remains unchanged. Therefore, the water pressure entering the water supply pipe 501 and the water supply channel 104 increases. The increased water pressure drives the water level inside the extension pipe 401 to rise, which in turn pushes the piston block 402 to move further upward along the inside of the extension pipe 401. This causes the lifting rod 404 and the second conductive ring 405 to move upward. When the second conductive ring 405 moves upward, it contacts the first conductive ring 106. At this time, the power supply 302 supplies power to the alarm device 301 through the second conductive ring 405, the first conductive ring 106 and the corresponding wires, so that the alarm device 301 issues an alarm signal to remind the construction personnel.

[0034] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 7 In one embodiment, the elastic support assembly 20 is provided with several sets above the support crossbar 102. Correspondingly, the spray assembly 60 is provided with several sets on the inner top wall of the arc-shaped support bar 103. Two sets of limiting rods 209 are fixedly provided on the side wall of the support rod 201 corresponding to each set of elastic support assembly 20. The two sets of limiting rods 209 are horizontally distributed relative to each other. The spray rigid pipes 601 corresponding to several spray assemblies 60 are located between the two sets of limiting rods 209 and are vertically distributed. The spray hoses 602 corresponding to several spray assemblies 60 are located above the two sets of limiting rods 209 and are horizontally distributed.

[0035] By setting up several elastic support components 20, multi-point elastic support can be provided for the arc-shaped support rod 103, thereby further improving the support strength of the arc-shaped support rod 103. By setting up several spray components 60, the spray range of the water source can be increased, improving the dust settling effect. When a certain position on the top of the road tunnel causes deformation at the corresponding position of the arc-shaped support rod 103, the spray rigid pipe 601 near the deformed position moves downward due to the deformation of the arc-shaped support rod 103. When the spray rigid pipe 601 moves downward, it targets the spray... The portion of the spray hose 602 located between the two sets of limiting rods 209 is pressed down. When the spray hose 602 is pressed, its bottom acts on the limiting rods 209, causing the spray hose 602 to rotate and deform around the limiting rods 209. This causes the end of the spray hose 602 to tilt upwards. The water source path output by the spray hose 602 with its end tilted upwards will be different from the water source path output by the other spray hoses 602. By using this difference, the staff can quickly determine the specific deformation position of the arc-shaped support rod 103.

[0036] In one embodiment, the first elastic element 207 and the second elastic element 403 may be springs or metal sheets, and there is no limitation on this.

[0037] In one embodiment, the spray hose 602 can be a rubber hose or a plastic hose, and there is no limitation on this.

[0038] In one embodiment, the alarm 301 may be an alarm light or a buzzer, and there is no limitation here.

[0039] The working principle of this invention is as follows: When supporting a road tunnel, two sets of support vertical rods 101 can be applied to the opposite sidewalls of the tunnel, and an arc-shaped support rod 103 can be applied to the top wall of the tunnel. Then, the handwheel 208 is rotated, causing the shaft 202 to rotate. Through the threaded engagement between the external thread 203 and the first slider 205, the support sleeve 204 moves upward. As the support sleeve 204 moves upward, the first elastic element 207 drives the support rod 201 upward. When the upper end of the support rod 201 acts on the inner top wall of the arc-shaped support rod 103, the first elastic element 207 is compressed, thereby providing support for the support rod 201. An elastic clamping force is transmitted to the arc-shaped support rod 103 via the support rod 201, thereby providing elastic support for the arc-shaped support rod 103 to enhance its strength and improve the support effect of the road tunnel. During the support process, an external water source is pumped through the water supply pipe 501 to the water supply channel 104 inside the support vertical rod 101, and then enters the water supply channel 104 inside the arc-shaped support rod 103. The water source enters the sprinkler rigid pipe 601 through the water supply channel 104 inside the arc-shaped support rod 103, and then flows freely through the sprinkler. The spray hose 602 sprays water to settle the dust generated during construction. During this process, some water flowing through the water supply pipe 501 can enter the extension pipe 401, thereby driving the piston block 402 to move upward along the extension pipe 401. When the piston block 402 moves to a certain position, the second elastic element 403 maintains the balance of the piston block 402. At this time, the second conductive ring 405 is located below the first conductive ring 106 and does not contact the first conductive ring 106. The power supply 302 does not supply power to the alarm 301, and the alarm 301 does not emit an alarm signal. When the arc-shaped support rod 103 deforms due to the influence of the road tunnel... When the water supply channel 104 is compressed, its diameter decreases. At this time, the water pressure entering the water supply pipe 501 and the water supply channel 104 increases, which in turn drives the water level inside the extension pipe 401 to rise. The piston block 402 moves further up along the inside of the extension pipe 401, which in turn drives the lifting rod 404 and the second conductive ring 405 to move up. When the second conductive ring 405 moves up, it contacts the first conductive ring 106. The power supply 302 supplies power to the alarm 301 through the second conductive ring 405, the first conductive ring 106 and the corresponding wires, so that the alarm 301 emits an alarm signal to remind the construction personnel.

[0040] In this embodiment of the invention, when the support component 10 supports the road tunnel, external water is supplied to the spray component 60 via the water supply component 50. The water is then output through the spray component 60 to settle the dust generated during the road tunnel construction. During this process, the water pressure detection component 40 detects the water pressure flowing through the support component 10. When the support component 10 deforms due to the road tunnel it supports, the water flow through the support component 10 is obstructed, resulting in an increase in the water pressure. At this time, the water pressure detection component 40... The increased water pressure is detected, which triggers the alarm component 30 to issue an alarm signal, thereby alerting the construction personnel inside the road tunnel. When the support component 10 supports the road tunnel, the elastic support component 20 provides elastic support to the support component 10, thereby increasing the strength of the support component 10 and improving the support effect of the road tunnel. Compared with the prior art, when the support component 10 supports the road tunnel, it can settle the dust generated during tunnel construction and automatically monitor the deformation of the support component 10, thereby improving the safety of the construction process.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity, and those skilled in the art should consider the specification as a whole.

Claims

1. A multi-functional support device for road tunnel construction, characterized in that, It includes a support assembly (10), an elastic support assembly (20), an alarm assembly (30), a water pressure detection assembly (40), a water supply assembly (50), and a sprinkler assembly (60). The elastic support component (20) is disposed inside the support component (10) and is used to provide elastic support for the support component (10). The spray assembly (60) is installed on the inner top wall of the support assembly (10). The water supply component (50) is installed on the side wall of the support component (10) and is used to supply water to the sprinkler component (60) through the support component (10). The water pressure detection component (40) and the alarm component (30) are installed on the side wall of the support component (10). The water pressure detection component (40) is used to detect the water pressure flowing through the support component (10). When the water pressure detection component (40) detects that the water pressure flowing through the support component (10) has increased, the alarm component (30) issues an alarm signal.

2. The multi-functional support device for road tunnel construction according to claim 1, characterized in that, The support assembly (10) includes a support vertical rod (101), a support horizontal rod (102), and an arc-shaped support rod (103). The support vertical rods (101) are provided in two sets, and the two sets of support vertical rods (101) are distributed opposite to each other. The arc-shaped support rod (103) is fixedly installed on the upper part of the two sets of support vertical rods (101), and the support horizontal rod (102) is fixedly installed between the two sets of support vertical rods (101).

3. A multi-functional support device for road tunnel construction according to claim 2, characterized in that, The elastic support assembly (20) includes a support rod (201), a rotating shaft (202), a support sleeve (204), a first slider (205), and a first elastic element (207). The rotating shaft (202) is rotatably mounted on the upper part of the support crossbar (102). The rotating shaft (202) is provided with an external thread (203). The first slider (205) is sleeved on the outside of the rotating shaft (202) and threadedly engaged with the external thread (203). The support sleeve (204) is fixedly mounted on one side of the first slider (205). The lower end of the support rod (201) extends into the inside of the support sleeve (204), and the upper end extends into the bottom of the arc-shaped support rod (103). The first elastic element (207) is disposed inside the support sleeve (204) to provide elastic support for the support rod (201).

4. A multi-functional support device for road tunnel construction according to claim 3, characterized in that, The elastic support assembly (20) also includes a second slider and a guide rod (206). The guide rod (206) is fixedly installed on the upper part of the support crossbar (102), and the second slider is fixedly installed on the side wall of the support sleeve (204). The second slider is sleeved on the outside of the guide rod (206) and movably cooperates with the guide rod (206).

5. A multi-functional support device for road tunnel construction according to claim 3, characterized in that, A handwheel (208) is also fixedly installed on the outside of the rotating shaft (202).

6. A multi-functional support device for road tunnel construction according to claim 3, characterized in that, Water supply channels (104) are provided inside both the arc-shaped support rod (103) and the support vertical rod (101). The water supply assembly (50) includes a water pump and a water supply pipe (501). One end of the water supply pipe (501) is connected to the output end of the water pump, and the other end is fixedly connected to the support vertical rod (101) and communicates with the water supply channel (104) inside the support vertical rod (101). The spray assembly (60) includes a rigid spray pipe (601) and a flexible spray pipe (602). The spray rigid pipe (601) is fixedly installed on the inner top wall of the arc-shaped support rod (103), and the spray hose (602) is installed at the lower end of the spray rigid pipe (601) and communicates with the spray rigid pipe (601).

7. A multi-functional support device for road tunnel construction according to claim 6, characterized in that, A guide plate (105) is fixedly installed on the side wall of the support vertical rod (101), and a first conductive ring (106) is fixedly installed at the bottom of the guide plate (105). The water pressure detection assembly (40) includes an extension tube (401), a piston block (402), a second elastic element (403), and a lifting rod (404). The extension tube (401) is fixedly installed on the upper part of the water supply pipe (501) and communicates with the water supply pipe (501). The piston block (402) is movably installed inside the extension tube (401). One end of the lifting rod (404) is fixedly connected to the upper part of the piston block (402), and the other end extends from the top of the extension tube (401) to the top of the extension tube (401) and passes through the first conductive ring (106) and the guide plate (105) in sequence. The lifting rod (404) is movably engaged with the first conductive ring (106) and the guide plate (105). One end of the second elastic element (403) is connected to the upper part of the piston block (402), and the other end is connected to the inner top wall of the extension tube (401) to provide elastic support for the piston block (402). A second conductive ring (405) is fixedly installed on the outside of the lifting rod (404). The alarm assembly (30) includes an alarm (301) fixedly installed on the side wall of the support vertical rod (101) and a power supply (302). The power supply (302) is connected to the second conductive ring (405) by a wire, and the alarm (301) is connected to the first conductive ring (106) by a wire.

8. A multi-functional support device for road tunnel construction according to claim 6, characterized in that, The elastic support assembly (20) is provided in several sets above the support crossbar (102), and correspondingly, the spray assembly (60) is provided in several sets on the inner top wall of the arc-shaped support bar (103). Two sets of limiting rods (209) are fixedly installed on the side wall of the support rod (201) corresponding to each set of elastic support components (20). The two sets of limiting rods (209) are horizontally distributed relative to each other. The spray pipes (601) corresponding to a number of spray components (60) are located between the two sets of limiting rods (209) and are vertically distributed. The spray hoses (602) corresponding to a number of spray components (60) are located above the two sets of limiting rods (209) and are horizontally distributed.

9. A multi-functional support device for road tunnel construction according to claim 6, characterized in that, The spray hose (602) is a rubber hose or a plastic hose.

10. A multifunctional support device for road tunnel construction according to claim 6, characterized in that, The alarm (301) is an alarm light or a buzzer.

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