A spraying device for the maintenance of foundation pit structures

Abstract

This utility model belongs to the technical field of spraying devices and discloses a spraying device for the maintenance of foundation pit structures. The spraying device for foundation pit structure maintenance includes a supporting vehicle, a spraying assembly, and a moving mechanism. A tracked wheel is connected to each end of the supporting vehicle, and a water tank containing liquid water is fixedly connected to the top of the supporting vehicle. The spraying assembly includes a drive pump, a spray pipe, and a nozzle. The input end of the drive pump is connected to the water tank, and the output end of the drive pump is connected to the spray pipe. The other end of the spray pipe is connected to the nozzle. The spray pipe is a flexible hose. The moving mechanism is fixedly connected to the supporting vehicle and includes a vertical moving component and a horizontal moving component. The vertical moving component can drive the horizontal moving component to rise and fall. The horizontal moving component is fixedly connected to the spray pipe and can drive the spray pipe to move in a second direction. The spraying device for foundation pit structure maintenance provided by this utility model improves the spraying operation range.

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, and in particular to a spraying device for the maintenance of foundation pit structures. Background Technology

[0002] In the field of construction engineering, the foundation pit serves as the fundamental carrier for underground structure construction, and the curing quality of its support structure and main concrete components directly determines the overall safety and durability of the project. After concrete pouring, a suitable temperature and humidity environment must be maintained to ensure sufficient hydration. Spray curing effectively prevents shrinkage cracks caused by excessive moisture evaporation in the concrete, ensuring the strength of the main concrete components meets standards. Simultaneously, it reduces dust pollution around the foundation pit, meeting green construction requirements. Especially in deep and large-span foundation pit projects, spray curing is crucial for reducing the risk of structural leakage and extending the service life of the project, playing a vital role in improving construction quality and safety.

[0003] Currently, commonly used sprinkler systems for foundation pit maintenance are mainly divided into two categories: fixed and mobile. Fixed sprinkler systems typically form a coverage network through pre-installed pipes and nozzles, while mobile sprinkler systems rely on supports to carry water tanks and sprinkler components for operation. However, existing sprinkler systems, in order to meet the needs of large-area spraying, are equipped with large-capacity water tanks and complex support structures, resulting in a large overall size and heavy weight. This makes them difficult to move flexibly in narrow passages, terrain with elevation differences, and areas with dense support components within the foundation pit, and they are prone to collisions with construction equipment or steel reinforcement formwork, resulting in poor adaptability. In addition, although some small-volume mobile devices have solved the movement problem, they are limited by the coverage radius of the nozzles, and the single spraying operation can only cover 2-3 square meters. Frequent relocation of the device is required, which not only increases the workload of operators but also easily creates maintenance blind spots, making it difficult to meet the needs of large-area, continuous maintenance of foundation pits. Utility Model Content

[0004] The purpose of this utility model is to provide a spraying device for the maintenance of foundation pit structures, which can be used to move inside the foundation pit and increase the spraying operation range.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A spraying device for the maintenance of foundation pit structures, comprising:

[0007] The vehicle body is supported, with a tracked wheel connected to each end. A water tank containing liquid water is fixedly connected to the top of the vehicle body.

[0008] The sprinkler assembly includes a drive water pump, a sprinkler pipe, and a sprinkler head. The input end of the drive water pump is connected to the water tank, the output end of the drive water pump is connected to the sprinkler pipe, and the other end of the sprinkler pipe is connected to the sprinkler head. The sprinkler pipe is a flexible hose.

[0009] A moving mechanism is fixedly connected to the supporting vehicle body. The moving mechanism includes a vertical moving component and a horizontal moving component. The vertical moving component can drive the horizontal moving component to move up and down in a first direction. The horizontal moving component is fixedly connected to the spray pipe, and the horizontal moving component can drive the spray pipe to move in a second direction. The first direction is perpendicular to the second direction.

[0010] The aforementioned spraying device for the maintenance of foundation pit structures includes a vertical moving component comprising a first driving member, a transmission chain, a transmission sprocket, and a lifting platform. The first driving member is connected to the transmission sprocket, the transmission sprocket meshes with the transmission chain, and the lifting platform is fixedly connected to the transmission chain. The first driving member can drive the transmission sprocket to rotate so that the lifting platform moves up and down along the first direction.

[0011] The aforementioned spraying device for the maintenance of foundation pit structures includes a vertical moving component comprising two drive chains and two drive sprockets. The two drive chains are spaced apart along the second direction, each drive chain meshes with a drive sprocket, and both drive sprockets are fixedly connected to the first driving member.

[0012] The aforementioned spraying device for the maintenance of foundation pit structures includes a vertical moving component that further comprises a fixed base and a lifting frame. The fixed base is fixedly connected to the supporting vehicle body, and the lifting frame extends along the first direction and is fixedly connected to the fixed base. The lifting frame is provided with the transmission chain.

[0013] The above-mentioned spraying device for the maintenance of foundation pit structures includes a horizontal moving component comprising a horizontal moving frame, a horizontal moving platform, a second driving component, a transmission screw, and a transmission nut. The horizontal moving frame extends along the second direction and is fixedly connected to the vertical moving component. The second driving component is fixedly connected to the horizontal moving frame and connected to the transmission screw. The transmission screw is screwed with the transmission nut, and the transmission nut is fixedly connected to the horizontal moving platform. The horizontal moving platform is slidably connected to the horizontal moving frame.

[0014] The aforementioned spraying device for the maintenance of foundation pit structures includes a horizontal moving platform equipped with a fixing clamp, which is configured to hold the spraying pipe.

[0015] The aforementioned spraying device for the maintenance of foundation pit structures further includes a plurality of limiting members, which are spaced apart along the second direction on the horizontal moving frame. The limiting members are used to limit the spray pipe so that at least a portion of the spray pipe is in a horizontal state.

[0016] The aforementioned spraying device for the maintenance of foundation pit structures further includes a protective cylinder, which is fixedly connected to the water tank, and the spraying pipe is disposed inside the protective cylinder.

[0017] The aforementioned spraying device for the maintenance of foundation pit structures further includes a support member, which is fixedly connected to the protective cylinder and is configured to support at least a portion of the spray pipe.

[0018] The aforementioned spraying device for the maintenance of foundation pit structures includes a placement slot at the top of the supporting vehicle body, in which a controller is placed. The controller is electrically connected to a drive water pump, a vertical moving component, and a horizontal moving component, and is configured to drive the moving mechanism to move and control the spraying component to spray water.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a spraying device for foundation pit structure maintenance. The support vehicle has tracked wheels connected to both sides, and a spraying assembly and a moving mechanism are located at the top of the support vehicle. The compact structure reduces the size of the spraying device and allows for flexible movement within the foundation pit. During use, the tracked wheels allow for movement within the foundation pit in relatively humid environments, improving efficiency and eliminating the need for manual movement, thus reducing the workload of operators. A drive air pump delivers liquid water from the tank to the spray pipe, which then sprays water through the nozzles. Simultaneously, the spray pipe is a flexible hose; the vertical moving assembly drives the horizontal moving assembly to rise and fall in a first direction, and the horizontal moving assembly drives the spray pipe to move in a second direction. This allows the spray pipe to move in both directions, increasing the spraying range, avoiding blind spots, and meeting the needs of large-area and continuous foundation pit maintenance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the spraying device for foundation pit structure maintenance provided in this embodiment of the utility model from a first-view perspective;

[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0024] Figure 4 yes Figure 1 Enlarged view of point C in the middle;

[0025] Figure 5 This is a schematic diagram of the spraying device for foundation pit structure maintenance provided in this embodiment of the utility model from a second perspective.

[0026] In the picture:

[0027] 1. Vehicle body support; 2. Tracked wheels; 3. Water tank;

[0028] 4. Sprinkler assembly; 41. Drive pump; 42. Sprinkler pipe; 43. Sprinkler head;

[0029] 5. Moving mechanism; 51. Vertical moving assembly; 511. First driving component; 512. Transmission chain; 513. Transmission sprocket; 514. Lifting platform; 515. Fixed base; 516. Lifting frame; 517. Reinforcing rib; 52. Horizontal moving assembly; 521. Horizontal moving frame; 522. Horizontal moving platform; 523. Second driving component;

[0030] 6. Fixing clip;

[0031] 7. Limiting components;

[0032] 8. Protective sleeve;

[0033] 9. Support components. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] The spraying device for foundation pit structure maintenance provided by this utility model is small in size and can move inside the foundation pit. The nozzle can move along the first direction and the second direction, which increases the spraying operation range and thus improves the quality and efficiency of spraying maintenance.

[0039] like Figures 1-5 As shown, the spraying device for foundation pit structure maintenance includes a supporting vehicle body 1, a spraying assembly 4, and a moving mechanism 5. A tracked wheel 2 is connected to each end of the supporting vehicle body 1. A water tank 3, containing liquid water, is fixedly connected to the top of the supporting vehicle body 1. The spraying assembly 4 includes a drive pump 41, a spray pipe 42, and a nozzle 43. The input end of the drive pump 41 is connected to the water tank 3, and the output end of the drive pump 41 is connected to the spray pipe 42. The other end of the spray pipe 42 is connected to the nozzle 43. The spray pipe 42 is a flexible hose. The moving mechanism 5 is fixedly connected to the supporting vehicle body 1. The moving mechanism 5 includes a vertical moving assembly 51 and a horizontal moving assembly 52. ​​The vertical moving assembly 51 can drive the horizontal moving assembly 52 to move up and down in a first direction. The horizontal moving assembly 52 is fixedly connected to the spray pipe 42 and can drive the spray pipe 42 to move in a second direction. The first direction is perpendicular to the second direction. The first direction is as follows: Figure 1 As shown in the X direction, the second direction is as follows: Figure 1 Shown in the Y direction.

[0040] The spraying device for foundation pit structure maintenance provided by this utility model has tracked wheels 2 connected to both sides of the supporting vehicle body 1, and a spraying assembly 4 and a moving mechanism 5 set at the top of the supporting vehicle body 1. The compact structure reduces the volume of the spraying device for foundation pit structure maintenance and allows for flexible movement within the foundation pit. During use, the tracked wheels 2 can move within the foundation pit in relatively humid environments, improving travel efficiency and eliminating the need for manual movement, thus reducing the workload of operators. A drive air pump delivers liquid water from the water tank 3 to the spray pipe 42, which then sprays water through the nozzle 43. Simultaneously, the spray pipe 42 is a flexible hose; the vertical moving assembly 51 can drive the horizontal moving assembly 52 to rise and fall in a first direction, and the horizontal moving assembly 52 can drive the spray pipe 42 to move in a second direction. This allows the spray pipe 42 to move in both directions, increasing the spraying range, avoiding blind spots, and meeting the needs of large-area and continuous foundation pit maintenance.

[0041] The tracked wheel 2 is a conventional device in the art. This embodiment does not provide a detailed explanation of the structure, working method and connection method of the tracked wheel 2. It can be selected and installed according to the setting requirements.

[0042] The supporting vehicle body 1 can be a supporting plate or a supporting block. For example, the supporting vehicle body 1 is a supporting block, which has sufficient load-bearing capacity to avoid cracking due to insufficient strength and improve the efficiency of spray curing of the foundation pit.

[0043] The moving mechanism 5 is used to move the spray pipe 42 along a first direction and a second direction, thereby increasing the working range of the spray pipe 42. For example, see... Figure 1 and Figure 2 The vertical moving component 51 includes a first driving member 511, a transmission chain 512, a transmission sprocket 513, and a lifting platform 514. The first driving member 511 is connected to the transmission sprocket 513, and the transmission sprocket 513 meshes with the transmission chain 512. The lifting platform 514 is fixedly connected to the transmission chain 512. The first driving member 511 can drive the transmission sprocket 513 to rotate, so that the lifting platform 514 moves up and down in a first direction. The sprocket and chain transmission is stable and will not slip, and can accurately control the lifting speed and lifting height.

[0044] Specifically, the first driving component 511 can be an existing motor, which is readily available and easy to use. In use, the first driving component 511 rotates forward, driving the transmission sprocket 513 to rotate. The transmission sprocket 513 meshes with the transmission chain 512, causing the transmission sprocket 513 to move along the first direction, thereby driving the lifting platform 514 to rise along the first direction. Conversely, the first driving component 511 rotates in reverse, driving the transmission sprocket 513 to rotate. The transmission sprocket 513 meshes with the transmission chain 512, causing the transmission sprocket 513 to move along the first direction, thereby driving the lifting platform 514 to descend along the first direction. The spray pipe 42 follows the lifting platform 514 in rising and falling along the first direction, thus increasing the working range of the spray pipe 42 in that direction.

[0045] Specifically, the transmission sprocket 513 and the lifting platform 514 can be fixed by welding or bolts.

[0046] Furthermore, the vertical moving assembly 51 includes two drive chains 512 and two drive sprockets 513. The two drive chains 512 are spaced apart along the second direction, and each drive chain 512 meshes with a drive sprocket 513. Both drive sprockets 513 are fixedly connected to the first driving member 511. The even force distribution on the two drive chains 512 improves the stability of the lifting process. See also Figure 2 The two transmission sprockets 513 are fixedly connected to the motor shaft of the first drive component 511, and can be connected by a coupling for easy disassembly.

[0047] In other embodiments, a speed reducer may be provided between the transmission sprocket 513 and the first drive member 511 to increase the torque.

[0048] Furthermore, the vertical moving assembly 51 also includes a fixed base 515 and a lifting frame 516. The fixed base 515 is fixedly connected to the supporting vehicle body 1, and the lifting frame 516 extends along the first direction and is fixedly connected to the fixed base 515. The lifting frame 516 is equipped with a transmission chain 512. The fixed base 515 can be fixedly connected to the supporting vehicle body 1 by bolts and washers, which can effectively reduce vibration and impact during movement and improve the stability of the lifting process. The lifting frame 516 can protect the transmission chain 512, reduce the adhesion of dust, particles, etc., and improve transmission stability.

[0049] Further, see Figure 2 The vertical moving assembly 51 also includes a reinforcing rib 517, the two ends of which are fixedly connected to the lifting frame 516 and the fixed base 515 to improve stability.

[0050] Specifically, the vertical moving component 51 also includes two support sprockets. The two support sprockets are rotatably connected to the lifting frame 516 at intervals along the second direction. The support sprockets and the transmission sprockets 513 are spaced apart along the first direction. One support sprocket and one transmission sprocket 513 can support one transmission chain 512. The rotation of the transmission sprocket 513 drives the transmission chain 512 to move, thereby driving the support sprocket to rotate, thus improving the stability of the movement.

[0051] In other embodiments, the first driving member 511 may also drive a cylinder, and the piston rod of the first driving member 511 is fixedly connected to the lifting platform 514, thereby driving the lifting platform 514 to move along the first direction.

[0052] The horizontal moving component 52 is used to drive the spray pipe 42 to move along the second direction, for example, see [link to example]. Figure 1 and Figure 3 The horizontal moving component 52 includes a horizontal moving frame 521, a horizontal moving stage 522, a second driving member 523, a transmission screw, and a transmission nut. The horizontal moving frame 521 extends along the second direction and is fixedly connected to the vertical moving component 51. The second driving member 523 is fixedly connected to the horizontal moving frame 521 and connected to the transmission screw. The transmission screw is screwed with a transmission nut, which is fixedly connected to the horizontal moving stage 522. The horizontal moving stage 522 is slidably connected to the horizontal moving frame 521, and the screw and nut transmission is stable.

[0053] Specifically, the second drive unit 523 can be an existing motor, which is readily available and easy to use. In use, the second drive unit 523 operates, driving the transmission screw to rotate. Since the transmission nut is fixedly connected to the horizontal moving platform 522 and the horizontal moving platform 522 is slidably connected to the horizontal moving frame 521, the transmission nut moves along the axial direction of the drive screw, thereby causing the horizontal moving platform 522 to slide along the horizontal moving frame 521. The forward and reverse rotation of the second drive unit 523 allows the horizontal moving platform 522 to reciprocate along the horizontal moving frame 521. This adjusts the distance between the nozzle 43 and the pit wall, ensuring that as much of the radial water jet from the nozzle 43 as possible falls onto the pit wall, improving the spraying effect.

[0054] In other embodiments, the horizontal moving stage 522 may have a threaded hole, and the transmission screw may be screwed into the threaded hole.

[0055] The sliding connection between the horizontal moving stage 522 and the horizontal moving frame 521 can be achieved by means of a slider groove or by means of a slide rail. For example, the horizontal moving stage 522 is provided with a guide groove along the second direction, and the horizontal moving frame 521 is provided with a guide slider along the second direction. The guide slider is slidably connected in the guide groove to ensure that the horizontal moving stage 522 moves along the second direction.

[0056] To secure the spray pipe 42, the horizontal moving stage 522 is, exemplarily, also provided with a fixing clip 6, which is configured to hold the spray pipe 42. Existing clips can be used for this purpose, as they are readily available. The fixing clip 6 is detachably connected to the horizontal moving stage 522, facilitating the removal and maintenance of the spray pipe 42.

[0057] This embodiment does not specifically limit the number of fixing clips 6. Optionally, see [link to relevant documentation]. Figure 1 and Figure 3 There are two fixing clips 6, which are fixed to the horizontal moving platform 522 at intervals along the second direction to improve the fixing effect on the spray pipe 42.

[0058] For example, see Figure 1 and Figure 3 The spraying device for foundation pit structure maintenance also includes multiple limiting members 7. The limiting members 7 are spaced apart along the second direction on the horizontal moving frame 521. The limiting members 7 are used to limit the spray pipe 42 so that at least part of the spray pipe 42 is in a horizontal state. The multiple limiting members 7 support the spray pipe 42, which can prevent the spray pipe 42 from sagging due to the weight of the pipe and the water, ensure that the nozzle 43 is in a horizontal state, and improve the spraying effect.

[0059] Furthermore, the limiting member 7 has a circular limiting groove, and at least a portion of the spray pipe 42 passes through the circular limiting groove, making installation convenient.

[0060] To reduce the impact of dust and particles on the spray pipe 42 during the spraying process, for example, see [reference needed]. Figure 1 and Figure 5 The spraying device for foundation pit structure maintenance also includes a protective cylinder 8, which is fixedly connected to the water tank 3. The spray pipe 42 is installed inside the protective cylinder 8. Dust, particles and other debris impact the protective cylinder 8, reducing the impact on the spray pipe 42 and improving its service life. An avoidance groove is provided at the top of the protective cylinder 8 for leading out the spray pipe 42.

[0061] Further, see Figure 1 and Figure 4 The spraying device for foundation pit structure maintenance also includes a support member 9, which is fixedly connected to the protective cylinder 8. The support member 9 is configured to support at least part of the spray pipe 42. The support member 9 can support the spray pipe 42, preventing the spray pipe 42 from sagging due to its own weight and the weight of the water, reducing the pressure applied to the outlet of the drive water pump 41, and ensuring normal spraying operation. At the same time, it can prevent the spray pipe 42 from bending due to its own weight and the weight of the water, thus improving spraying efficiency.

[0062] In this embodiment, a placement slot is provided at the top of the supporting vehicle body 1, and a controller 10 is placed in the placement slot. The controller 10 is electrically connected to the drive water pump 41, the vertical moving component 51, and the horizontal moving component 52, and is configured to drive the moving mechanism 5 to move and control the spraying component 4 to spray water. The controller 10 controls the operation of the drive water pump 41, the first drive component 511, and the second drive component 523, reducing the workload of operators, avoiding errors caused by manual operation, and improving the efficiency of spraying maintenance.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A spraying device for the maintenance of foundation pit structures, characterized in that, include: A support vehicle body (1) is provided, with a tracked wheel (2) connected to each end of the support vehicle body (1). A water tank (3) is fixedly connected to the top of the support vehicle body (1), and liquid water is contained in the water tank (3). The spray assembly (4) includes a drive water pump (41), a spray pipe (42), and a nozzle (43). The input end of the drive water pump (41) is connected to the water tank (3), and the output end of the drive water pump (41) is connected to the spray pipe (42). The other end of the spray pipe (42) is connected to the nozzle (43). The spray pipe (42) is a flexible hose. The moving mechanism (5) is fixedly connected to the supporting vehicle body (1). The moving mechanism (5) includes a vertical moving component (51) and a horizontal moving component (52). The vertical moving component (51) can drive the horizontal moving component (52) to move up and down in a first direction. The horizontal moving component (52) is fixedly connected to the spray pipe (42), and the horizontal moving component (52) can drive the spray pipe (42) to move in a second direction. The first direction is perpendicular to the second direction.

2. The spraying device for foundation pit structure maintenance according to claim 1, characterized in that, The vertical moving assembly (51) includes a first driving member (511), a transmission chain (512), a transmission sprocket (513), and a lifting platform (514). The first driving member (511) is connected to the transmission sprocket (513) for transmission. The transmission sprocket (513) is engaged with the transmission chain (512). The lifting platform (514) is fixedly connected to the transmission chain (512). The first driving member (511) can drive the transmission sprocket (513) to rotate so that the lifting platform (514) moves up and down along the first direction.

3. The spraying device for curing foundation pit structures according to claim 2, characterized in that, The vertical moving component (51) includes two transmission chains (512) and two transmission sprockets (513). The two transmission chains (512) are spaced apart along the second direction. Each transmission chain (512) meshes with a transmission sprocket (513). Both transmission sprockets (513) are fixedly connected to the first driving member (511).

4. The spraying device for curing foundation pit structures according to claim 2, characterized in that, The vertical moving assembly (51) further includes a fixed base (515) and a lifting frame (516). The fixed base (515) can be fixedly connected to the supporting vehicle body (1). The lifting frame (516) extends along the first direction and is fixedly connected to the fixed base (515). The lifting frame (516) is provided with the transmission chain (512).

5. The spraying device for curing foundation pit structures according to claim 1, characterized in that, The horizontal moving assembly (52) includes a horizontal moving frame (521), a horizontal moving stage (522), a second driving member (523), a transmission screw, and a transmission nut. The horizontal moving frame (521) extends along the second direction and is fixedly connected to the vertical moving assembly (51). The second driving member (523) is fixedly connected to the horizontal moving frame (521) and connected to the transmission screw. The transmission screw is screwed with the transmission nut. The transmission nut is fixedly connected to the horizontal moving stage (522). The horizontal moving stage (522) is slidably connected to the horizontal moving frame (521).

6. The spraying device for curing foundation pit structures according to claim 5, characterized in that, The horizontal moving platform (522) is also provided with a fixing clip (6), which is configured to hold the spray pipe (42).

7. The spraying device for curing foundation pit structures according to claim 5, characterized in that, The spraying device for the maintenance of the foundation pit structure also includes a plurality of limiting members (7), which are spaced apart on the horizontal moving frame (521) along the second direction. The limiting members (7) are used to limit the spray pipe (42) so that at least part of the spray pipe (42) is in a horizontal state.

8. The spraying device for curing foundation pit structures according to claim 1, characterized in that, The spraying device for the maintenance of the foundation pit structure also includes a protective cylinder (8), which is fixedly connected to the water tank (3), and the spray pipe (42) is disposed inside the protective cylinder (8).

9. The spraying device for curing foundation pit structures according to claim 8, characterized in that, The spray device for the maintenance of the foundation pit structure also includes a support member (9), which is fixedly connected to the protective cylinder (8) and is configured to support at least a portion of the spray pipe (42).

10. The spraying device for curing foundation pit structures according to any one of claims 1-9, characterized in that, The top of the supporting vehicle body (1) is provided with a placement slot, in which a controller (10) is placed. The controller (10) is electrically connected to the drive water pump (41), the vertical moving component (51) and the horizontal moving component (52), and is configured to drive the moving mechanism (5) to move and control the spraying component (4) to spray water.

Images