Intelligent spraying vehicle suitable for tunnel operation
The design of the intelligent spraying vehicle has enabled automation and flexibility in the spraying of liquids during tunnel construction and maintenance, solving the safety hazards and low efficiency problems caused by manual operation, and improving the safety and efficiency of tunnel operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-03
AI Technical Summary
Existing spray trucks require manual operation, which poses safety hazards, high labor intensity, and low work efficiency. They are particularly problematic during tunnel construction and maintenance, where they pose risks inside the tunnel and make dust removal difficult.
A smart sprinkler truck suitable for tunnel operations was designed. It adopts a mobile vehicle body, a slewing support base and a remotely controllable high-pressure water pump. Combined with telescopic and folding units, the sprinkler system can be automated and adapted to environmental conditions through the coordinated operation of electric cylinders and motors.
It reduces the frequency of manual operation, lowers safety risks, improves operational efficiency, enhances environmental adaptability and operational flexibility, and adapts to spraying needs under different working conditions.
Smart Images

Figure CN223964485U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spray truck technology, and in particular to an intelligent spray truck suitable for tunnel operations. Background Technology
[0002] A tunnel is a passageway carved or excavated in mountains or underground, with a cement layer on its inner wall.
[0003] During tunnel construction, in order to ensure that the cement layer maintains appropriate humidity during the curing process, it is necessary to spray liquid onto the cement layer from time to time to prevent cracking. Similarly, during tunnel maintenance, it is necessary to spray liquid onto the cement layer to clean or maintain it.
[0004] Currently, the most common spraying method in existing technologies involves using spray trucks, with manual control of the spray nozzles on the trucks to spray liquid onto the cement layer. While this method can achieve the spraying action, it requires manual control. During tunnel construction, there are risks such as falling rocks from the tunnel ceiling, landslides, and electric shocks from tunnel electrical equipment, posing safety hazards to operators. During tunnel maintenance, as the tunnel ages, a large amount of dust accumulates inside, and manual removal is labor-intensive and inefficient. Utility Model Content
[0005] The purpose of this invention is to provide an intelligent spraying vehicle suitable for tunnel operations, so as to solve the problems mentioned in the background art.
[0006] The technical solution adopted in this utility model is:
[0007] Intelligent sprinkler trucks suitable for tunnel operations include:
[0008] A movable vehicle body, wherein a water tank and a remotely controllable high-pressure water pump are installed inside the vehicle body;
[0009] At least one slewing support is rotatably disposed on the upper surface of the vehicle body; and
[0010] A spraying device is installed on each of the rotary support seats, and the spraying device is indirectly connected to the water tank through a high-pressure water pump;
[0011] The spraying device includes:
[0012] A telescopic unit hinged to the rotary support and a folding unit disposed at the working end of the telescopic unit; and
[0013] The first electric cylinder has one end connected to the rotary support base and the other end connected to the telescopic unit;
[0014] The spraying device, through the coordinated operation of the telescopic unit, the first electric cylinder, and the folding unit, can be folded and laid flat on the upper surface of the vehicle body when not spraying, and can unfold the folding unit according to the working conditions when spraying.
[0015] Optionally, when the spray device is folded and laid flat on the upper surface of the vehicle body, the outer edge of the spray device does not exceed the outer edge of the vehicle body.
[0016] Optionally, the telescopic unit includes:
[0017] A fixed column, one end of which is hinged to the rotary support seat;
[0018] A movable column is disposed within the fixed column and can extend or retract relative to the fixed column;
[0019] The folding unit is located at the end of the movable column.
[0020] Optionally, the telescopic unit further includes:
[0021] A drive mechanism for moving the movable column;
[0022] The drive mechanism includes:
[0023] The motor is installed inside the fixed column, and its output end is connected to a lead screw via a coupling.
[0024] The nut assembly is sleeved on the lead screw and connected to the movable column.
[0025] Optionally, the folding unit further includes:
[0026] A fixed spray pipe section is provided at the end of the telescopic unit;
[0027] The first movable spray pipe section is hinged to the end of the fixed spray pipe section; and
[0028] The second electric cylinder has one end connected to the telescopic unit and the other end connected to the first movable spray pipe section.
[0029] The first movable spray pipe section can rotate at a certain angle relative to the fixed spray pipe section under the drive of the second electric cylinder.
[0030] Optionally, the folding unit further includes:
[0031] The second movable spray pipe section is hinged to the end of the first movable spray pipe section; and
[0032] The third electric cylinder has one end connected to the first movable spray pipe section and the other end connected to the second movable spray pipe section;
[0033] The second movable spray pipe section can rotate at a certain angle relative to the first movable spray pipe section under the drive of the third electric cylinder.
[0034] Optional,
[0035] The first movable spray pipe section and the second electric cylinder are respectively arranged in pairs;
[0036] The first movable spray pipe sections, arranged in pairs, can be hinged symmetrically to both ends of the fixed spray pipe section.
[0037] The second electric cylinders, arranged in pairs, can be connected symmetrically to the telescopic unit.
[0038] Optional,
[0039] The second movable spray pipe section and the third electric cylinder are respectively arranged in pairs;
[0040] The second movable spray pipe sections, arranged in pairs, can be hinged symmetrically to the ends of the first movable spray pipe sections;
[0041] The third electric cylinders, arranged in pairs, can be connected symmetrically to the first movable spray pipe section.
[0042] Optionally, the vehicle body is equipped with a power supply system and / or an emergency backup battery.
[0043] Optionally, the folding unit is equipped with an electrically controlled valve.
[0044] Compared with the prior art, the beneficial effects of this utility model are:
[0045] In this invention, the free movement of the vehicle body and the start and stop of the high-pressure water pump, the first electric cylinder, the second electric cylinder, the third electric cylinder, and the motor can be remotely controlled through system control or handheld remote control, realizing intelligent operation. This reduces the frequency of manual operation and the intensity of manual labor, while solving the safety risks to operators in the work area in the prior art. Furthermore, by adjusting the posture of the telescopic unit and the folding unit, the spraying device can flexibly change its working posture according to different working conditions, significantly enhancing environmental adaptability and thus improving work efficiency. Attached Figure Description
[0046] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0047] Figure 1 This is a schematic diagram of the overall structure of this application;
[0048] Figure 2 for Figure 1 Schematic diagram of the unfolded structure;
[0049] Figure 3 for Figure 2 Another schematic diagram of the state structure;
[0050] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0051] Figure 5 This is a schematic diagram of the structure of the telescopic unit and the folding unit in this application;
[0052] Figure 6 This is a schematic diagram of the drive mechanism in this application.
[0053] Figure label:
[0054] 1. Vehicle body;
[0055] 2. Slewing support seat;
[0056] 3. Spraying device;
[0057] 31. Telescopic unit; 311. Fixed column; 312. Moving column;
[0058] 313. Drive mechanism; 3131. Motor; 3132. Coupling; 3133. Lead screw; 3134. Nut pair;
[0059] 32. Folding unit; 321. Fixed spray pipe section; 322. First movable spray pipe section; 323. Second electric cylinder; 324. Second movable spray pipe section; 325. Third electric cylinder;
[0060] 33. First electric cylinder;
[0061] 4. Laser sensor; 5. Electric control valve; 6. Triangular track wheel. Detailed Implementation
[0062] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0063] Given that current technology requires manual operation of spray trucks, which leads to problems such as personal safety hazards for operators, high labor intensity, and low work efficiency.
[0064] like Figures 1-6 As shown in the figure, this utility model embodiment provides an intelligent sprinkler truck suitable for tunnel operations, mainly comprising:
[0065] A movable vehicle body 1, which contains a water tank (not shown in the figure) and a remotely controllable high-pressure water pump (not shown in the figure).
[0066] At least one slewing support 2 is rotatably mounted on the upper surface of the vehicle body 1; and
[0067] A spray device 3 is installed on each slewing support 2, and the spray device 3 is indirectly connected to the water tank through a high-pressure water pump.
[0068] in,
[0069] The spray device 3 includes:
[0070] The telescopic unit 31 is hinged to the slewing support 2, and the folding unit 32 is disposed at the working end of the telescopic unit 31; and
[0071] The first electric cylinder 33 has one end connected to the rotary support 2 and the other end connected to the telescopic unit 31.
[0072] With the coordinated operation of the telescopic unit 31, the first electric cylinder 33, and the folding unit 32, the spraying device 3 can be folded and laid flat on the upper surface of the vehicle body 1 when not spraying. The outer edge of the folded and laid-flat spraying device 3 does not exceed the outer edge of the vehicle body 1 to prevent the folded spraying device 3 from colliding with road obstacles during the movement of the vehicle body 1 and causing damage to the spraying device 3. When spraying, the folding unit 32 can be unfolded according to the working environment to adapt to different working environments and improve work efficiency.
[0073] Specifically, the vehicle body 1 is equipped with a power supply system. This power supply system can be externally powered or battery-powered, as long as it ensures that the vehicle body 1 can move freely under remote control. The remote control method can be system control or handheld remote control, with a remote control distance of 0-1000m. Remote control is existing technology and will not be described in detail here.
[0074] The slewing support 2 is rotatably mounted on the upper surface of the vehicle body 1 via a slewing motor (not shown in the figure) located inside the vehicle body 1, and is configured to support the spraying device 3. The slewing support 2 has a receiving cavity (not shown in the figure), and when the spraying device 3 is folded and laid flat on the upper surface of the vehicle body 1, the base of the first electric cylinder 33 is received in the receiving cavity.
[0075] like Figure 5 As shown, the telescopic unit 31 mainly includes:
[0076] One end of the telescopic unit 31 is hinged to the slewing support 2. A movable column 312, disposed within the fixed column 311 and capable of extending or retracting relative to it, is also included. The extension or retraction of the movable column 312 alters the length of the telescopic unit 31, thereby achieving height adjustment. When the movable column 312 is extended to its limit, the total height of the spray truck can reach 5000-15000 mm.
[0077] Furthermore, the telescopic unit 31 also includes a drive mechanism 313 for driving the moving column 312 to move.
[0078] Specifically, such as Figure 6 As shown, the drive mechanism 313 includes several parts such as a motor 3131, a coupling 3132, a lead screw 3133, and a nut pair 3134.
[0079] The motor 3131 is housed within the fixed column 311, and its output end is connected to a lead screw 3133 via a coupling 3132. A nut pair 3134 is fitted onto the lead screw 3133, and the nut pair 3134 is connected to the moving column 312. The motor 3131 is remotely started, driving the lead screw 3133 to rotate. The rotating lead screw 3133 causes the nut pair 3134 to reciprocate along the axial direction of the lead screw 3133. The nut pair 3134 then causes the moving column 312 to extend or retract, thereby achieving height adjustment of the telescopic unit 31.
[0080] like Figure 3 or Figure 5 As shown, the folding unit 32 mainly includes several parts such as a fixed spray pipe section 321, a first movable spray pipe section 322, and a second electric cylinder 323.
[0081] The fixed spray pipe section 321 is located at the end of the movable column 312, and the first movable spray pipe section 322 is hinged to the end of the fixed spray pipe section 321. One end of the second electric cylinder 323 is connected to the movable column 312, and the other end is connected to the first movable spray pipe section 322. The first movable spray pipe section 322 can rotate relative to the fixed spray pipe section 321 at a certain angle under the drive of the second electric cylinder 323.
[0082] Furthermore, the folding unit 32 also includes: a second movable spray pipe section 324 hinged to the end of the first movable spray pipe section 322, and a third electric cylinder 325 having one end connected to the first movable spray pipe section 322 and the other end connected to the second movable spray pipe section 324. The second movable spray pipe section 324 can rotate relative to the first movable spray pipe section 322 at a certain angle under the drive of the third electric cylinder 325.
[0083] Furthermore, the first movable spray pipe section 322 and the second electric cylinder 323 are respectively arranged in pairs.
[0084] The first movable spray pipe section 322, arranged in pairs, can be hinged symmetrically to both ends of the fixed spray pipe section 321; the second electric cylinder 323, arranged in pairs, can be symmetrically connected to the moving column 312.
[0085] Furthermore, the second movable spray pipe section 324 and the third electric cylinder 325 are arranged in pairs.
[0086] The second movable spray pipe section 324, arranged in pairs, can be hinged symmetrically to the end of the first movable spray pipe section 322; the third electric cylinder 325, arranged in pairs, can be symmetrically connected to the first movable spray pipe section 322.
[0087] In use, the vehicle body 1 can be moved remotely by system control or handheld remote control. When the vehicle body 1 moves to a suitable position and the telescopic unit 31 extends to a predetermined height, the high-pressure water pump is remotely turned on (the remote control method is existing technology and will not be described in detail here). The liquid in the water tank is transported to the spraying device 3 through the hose under the action of the high-pressure water pump, and the spraying device 3 sprays the liquid to the work area.
[0088] When the posture of the telescopic unit 31 needs to be adjusted according to different working conditions, the first electric cylinder 33 is remotely activated. The push rod of the first electric cylinder 33 extends or retracts, causing the telescopic unit 31 to rotate around the hinge point between the telescopic unit 31 and the slewing support 2 at a certain angle. When the push rod of the first electric cylinder 33 extends to its maximum stroke, the telescopic unit 31 is in a nearly upright posture, at which time the spraying device 3 sprays the arc apex area; when the push rod of the first electric cylinder 33 gradually retracts from its maximum stroke, the telescopic unit 31 is in an inclined posture, at which time the spraying device 3 sprays the arc side wall area.
[0089] When the posture of the folding unit 32 needs to be adjusted according to different working environments, the second electric cylinder 323 is remotely activated. The push rod of the second electric cylinder 323 extends or retracts, driving the first movable spray pipe section 322 to rotate a certain angle relative to the fixed spray pipe section 321. The third electric cylinder 325 is then remotely activated, driving the second movable spray pipe section 324 to rotate a certain angle relative to the first movable spray pipe section 322, thus presenting different postures to adapt to different working conditions. These different postures can be as follows: Figure 5 The arc shape shown Figure 2 The door shapes shown are round, or "L" shaped, etc.
[0090] When it is necessary to rotate the spray device 3 to meet the requirements of flexible operation of the spray device 3, the rotary motor is remotely controlled. The rotary motor drives the rotary support 2 to rotate, and the rotating rotary support 2 drives the spray device 3 to rotate as a whole, thereby realizing the flexible operation of the spray device 3.
[0091] When the spraying device 3 finishes its spraying operation, it needs to be folded and stored on the upper surface of the vehicle body 1 for easy return. First, the third electric cylinder 325 and the second electric cylinder 323 are activated to adjust the folding unit 32 to a gate-like position. Then, the motor 3131 is activated to put the telescopic unit 31 in a retracted state. The rotary motor is then activated, and the telescopic unit 31 and the folding unit 32 are rotated to directly above the top of the vehicle body 1 via the rotary support 2. Then, the first electric cylinder 33 is activated, and its push rod retracts. When the push rod of the first electric cylinder 33 retracts to its minimum stroke, the telescopic unit 31 is in a horizontal position, and the base of the first electric cylinder 33 is located within the accommodating cavity. Please refer to the detailed diagram. Figure 1 .
[0092] Furthermore, to enable the spray truck to meet the needs of special working conditions, such as when hot water is required for operation, an electric heating coil (not shown in the figure) is also installed in the water tank in this embodiment. The electric heating coil is electrically connected to the power supply system and heats the liquid in the water tank. The heating temperature can be set as needed by a temperature control device (the implementation method is prior art and will not be described in detail here), thereby enabling the spray truck to meet the needs of special working conditions.
[0093] Furthermore, to prevent power loss during operation, the sprinkler truck also includes an emergency backup battery (not shown in the figure) installed inside the vehicle body 1. This emergency backup battery enables the sprinkler device 3 to fold and allows the sprinkler truck to travel at a slow speed for at least 5 kilometers in the event of a power outage.
[0094] Furthermore, the spray truck in this embodiment also includes multiple laser sensors 4, which are respectively mounted on the vehicle body 1 and the folding unit 32. When the vehicle body 1 approaches an obstacle, an alarm (not shown in the figure) sounds, and the vehicle body 1 stops moving; when the folding unit 32 approaches a predetermined height of 300cm, the alarm sounds, the telescopic unit 31 slows down its telescopic movement, and when the folding unit 32 reaches the predetermined height, the telescopic unit 31 stops its telescopic movement. This implementation method is existing technology and will not be described in detail here.
[0095] Furthermore, in order to realize the fully open or partially open function of the folding unit 32, in this embodiment, an electric control valve 5 is provided at the hinge of the fixed spray pipe section 321 and the first movable spray pipe section 322, and the first movable spray pipe section 322 and the second movable spray pipe section 324. The fully open or partially open function of the folding unit 32 is realized by controlling the opening and closing of the electric control valve 5.
[0096] Furthermore, in this embodiment, the wheels of the vehicle body 1 are triangular track wheels 6, which are connected to the vehicle body 1 via connecting drums (not shown in the figure). Triangular track wheels 6 have advantages such as high passability and high mobility; they are flexible in movement and steering, have strong load-bearing capacity, and can travel on both paved and unpaved roads, meeting the requirements of harsh working conditions in tunnels. Preferably, the triangular track wheels 6 are triangular rubber track wheels, which have advantages such as light weight, no damage to the road surface, and convenient loading and unloading.
[0097] Furthermore, the connecting drum in this embodiment uses existing technology to enable quick replacement of the triangular track and tires, meeting different passability requirements.
[0098] It should be noted that the form of the liquid sprayed by the folding unit 32 in this embodiment (such as mist or column) can be switched according to the specific working conditions. The switching method can be achieved by replacing the nozzle on the folding unit 32. The pressure value of the liquid sprayed by the folding unit 32 (such as low pressure, normal pressure, or high pressure) can also be switched according to the specific working conditions. The switching method can be achieved by adjusting the liquid pressure value.
[0099] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An intelligent spraying vehicle suitable for tunnel operation, characterized in that, The utility model relates to a kind of intelligent spraying vehicle, including: A movable car body, water tank and remotely controllable high-pressure water pump are arranged in the car body; At least one rotary support seat is rotatably arranged at the upper surface of the car body;And Spraying device is arranged on each rotary support seat, and the spraying device is indirectly connected between high-pressure water pump and the water tank; Wherein, the spraying device has: Hinged in the rotary support seat telescopic unit and the folding unit arranged in the working end of telescopic unit;And First electric cylinder, one end is connected with the rotary support seat, the other end is connected with the telescopic unit; The spraying device can be folded and laid flat on the upper surface of the car body in non-spraying state under the mutual coordination of telescopic unit, first electric cylinder and folding unit, and the folding unit can be unfolded according to working condition environment in spraying state.
2. The smart sprinkling vehicle according to claim 1, wherein, When the spraying device is folded and laid flat on the upper surface of the car body, the outer edge of the spraying device does not exceed the outer edge of the car body.
3. The smart sprinkling vehicle according to claim 1, wherein, The telescopic unit includes: A fixed column, one end is hinged with the rotary support seat; A moving column is arranged in the fixed column, and can be extended or retracted relative to the fixed column; Wherein, the folding unit is arranged at the end of the moving column.
4. The smart sprinkling vehicle according to claim 3, wherein, The telescopic unit further includes: A driving mechanism for driving the movement of the moving column; The driving mechanism includes: Motor is arranged in the fixed column, and the output end is connected with lead screw through coupling; Nut pair is sleeved on the lead screw, and is connected with the moving column.
5. The smart sprinkling vehicle of claim 1, wherein, The folding unit further includes: Fixed spraying pipe section, arranged at the end of telescopic unit; First movable spraying pipe section, hinged at the end of fixed spraying pipe section;And Second electric cylinder, one end is connected on the telescopic unit, the other end is connected on the first movable spraying pipe section; Wherein, the first movable spraying pipe section can be angularly rotated relative to the fixed spraying pipe section under the drive of the second electric cylinder.
6. The smart sprinkling vehicle of claim 5, wherein, The folding unit further includes: Second movable spraying pipe section, hinged at the end of the first movable spraying pipe section;And Third electric cylinder, one end is connected on the first movable spraying pipe section, the other end is connected on the second movable spraying pipe section; Wherein, the second movable spraying pipe section can be angularly rotated relative to the first movable spraying pipe section under the drive of the third electric cylinder.
7. The intelligent spraying vehicle according to claim 6, wherein: The first movable spraying pipe section and the second electric cylinder are respectively arranged in pairs; The first movable spraying pipe sections arranged in pairs can be hinged at both ends of the fixed spraying pipe section in a symmetrical manner; The second electric cylinders arranged in pairs can be connected on the telescopic unit in a symmetrical manner.
8. The intelligent spraying vehicle according to claim 6, wherein: The second movable spraying pipe section and the third electric cylinder are respectively arranged in pairs; The second movable spraying pipe sections arranged in pairs can be hinged at the ends of the first movable spraying pipe section in a symmetrical manner. The third electric cylinders arranged in pairs can be connected on the first movable spray pipe section in a symmetrical form.
9. The smart sprinkling vehicle of claim 1, wherein, The vehicle body is equipped with a power supply system and / or emergency backup battery.
10. The smart sprinkling vehicle of claim 1, wherein, The folding unit is provided with an electric control valve.