A building foundation pit wall reinforcing material spraying treatment device

Abstract

The application discloses a building foundation pit wall reinforcing material spraying treatment equipment and relates to the technical field of building foundation pit wall reinforcing treatment. The building foundation pit wall reinforcing material spraying treatment equipment comprises a moving table, an incremental spraying mechanism, a variable assembly installed on the bottom of a rectangular mounting frame cavity through a supporting rod, a rectangular seat fixedly connected to the upper end of the supporting rod, a cavity opened in the rectangular seat, four fan-shaped plates peripherally and equidistantly arranged in the cavity and in threaded connection with the corresponding fan-shaped plates, and a conical gear ring fixedly connected with a conical gear ring in mesh with the bevel gear through a connecting block. The reinforcing material sprayed and covered on the pit wall gradually thickens from bottom to top, and then the material gradually flows downward under the action of gravity and automatically and uniformly covers the pit wall while gradually drying, so that the reinforcing material can be uniformly sprayed and covered on the pit wall, and the reinforcing and protecting effect on the pit wall is improved.

Description

Technical Field

[0001] This invention relates to the field of building foundation pit wall reinforcement technology, specifically to a building foundation pit wall reinforcement material spraying treatment equipment. Background Technology

[0002] The foundation pit wall refers to the wall of the earthwork pit excavated during the construction of a building. It is commonly found in foundation engineering. The stability of the foundation pit wall is crucial to the safety and stability of the building. To ensure the stability of the foundation pit wall, spraying is generally used for protection. Sprayed reinforcement materials can enhance the strength and durability of the pit wall, while also preventing leakage and soil erosion. Common reinforcement materials include sprayed concrete, polymer repair materials, and fiber-reinforced polymers. Spraying equipment is required to spray the reinforcement materials onto the pit wall.

[0003] Traditional spraying equipment sprays material directly onto the pit wall. Since the reinforcing material is in a flowing liquid state when it is first sprayed, it needs to wait for a period of time to dry and solidify on the pit wall. In addition, the spraying flow rate of traditional spraying equipment is fixed, which causes the reinforcing material sprayed onto the pit wall to flow downward under the action of gravity. This results in the reinforcing material coating covering the pit wall being thicker at the bottom and thinner at the top, resulting in uneven coating thickness. Consequently, the upper part of the pit wall is not effectively protected, affecting the protective effect of the pit wall.

[0004] In addition, before reinforcing the foundation pit wall, it is necessary to clean the pit wall surface to ensure that it is smooth, clean and dry, and apply a layer of waterproof material, such as polymer cement emulsion, to increase the waterproof performance of the pit wall. This is a preliminary step to ensure that the reinforcement material can adhere firmly to the pit wall. Traditional preliminary steps need to be carried out sequentially, which is relatively scattered and affects the time required for the foundation pit reinforcement treatment. Summary of the Invention

[0005] This invention provides a spraying treatment device for reinforcing materials on the walls of building foundation pits. It solves the technical problems of traditional reinforcement material spraying equipment, which easily causes the reinforcement material to flow downwards due to gravity after being sprayed onto the pit wall, resulting in an uneven coating thickness with a thin upper part and a thicker lower part. This leads to the upper part of the pit wall not being effectively protected, and the pre-treatment steps for the pit are relatively scattered, affecting the efficiency of the reinforcement work.

[0006] This invention provides a spraying device for reinforcing the walls of a building foundation pit, comprising a movable platform, a wheel frame rotatably connected to the four corners of the lower end face of the movable platform, and movable wheels rotatably connected to the wheel frame via a rotating shaft. An L-shaped frame is fixedly connected to the rear end face of the movable platform. A rectangular mounting frame is fixedly connected to the lower end face of the vertical section of the L-shaped frame via an electric telescopic frame. An incremental spraying mechanism for spraying reinforcing material onto the foundation pit walls is mounted on the left side of the rectangular mounting frame. The incremental spraying mechanism includes: a variable component mounted on the bottom of the rectangular mounting frame cavity via a support rod; two rope pulleys rotatably connected to opposite sides of the horizontal section of the rectangular mounting frame via connecting rods; a transmission belt is sleeved on the exterior of the two rope pulleys and the variable component; a vertical frame is fixedly connected to the front of the rectangular mounting frame; and a sliding section is formed at the front of the vertical frame. The variable assembly is connected to a strip-shaped spray head via a connecting hose to the front of the variable assembly. The rear of the variable assembly is connected via a connecting pipe to an opening and closing valve unit for cooperating with a transmission belt. The variable assembly includes: a rectangular seat fixedly connected to the upper end of a support rod; a cavity opened inside the rectangular seat; four circumferentially equidistantly slidably arranged sector plates in the cavity; several circumferentially equidistantly rotatably connected screws corresponding to the sector plates to the outside of the rectangular seat, and the screws and their corresponding sector plates are threadedly connected; a bevel gear is fixedly connected to the end of the screw away from the sector plate; annular discs are symmetrically sleeved and fixedly connected to the outside of the rectangular seat; a rotating ring sleeved by a transmission belt is rotatably connected between two of the annular discs; and a bevel gear ring meshing with the bevel gear is fixedly connected inside the rotating ring via a connecting block.

[0007] In one possible implementation, the right side of the rectangular mounting frame is equipped with an integrated cleaning and coating mechanism for cleaning the surface of the foundation pit wall and applying waterproof material, and the opposite sides of the transverse section of the rectangular mounting frame are provided with driving components for driving the incremental spraying mechanism and the integrated cleaning and coating mechanism.

[0008] In one possible implementation, the drive unit includes a vertical plate fixedly connected to the upper and lower opposite sides of a rectangular mounting frame. A strip-shaped through groove is provided on the vertical plate. A slide plate is slidably connected inside the strip-shaped through groove. A reciprocating electric telescopic rod is fixedly connected between the slide plate and the lower wall of the strip-shaped through groove. The slide plate and the strip-shaped spray head are fixedly connected to each other by a fixing plate. The right vertical section of the transmission belt is fixedly connected through the inside of the slide plate.

[0009] In one possible implementation, the integrated cleaning and coating mechanism includes two slide rods fixedly connected to the upper and lower opposite sides of a rectangular mounting frame. Each slide rod has a slidably connected support block. A bidirectional telescopic rod is hinged to the upper cavity wall of the rectangular mounting frame at the midpoint between the two slide rods via a vertical rod. The ends of the bidirectional telescopic rod are hinged to the support blocks via lugs. A U-shaped frame is fixedly connected to the front end face of the support block on the right side via a spring telescopic column. Several elastic scrapers are fixedly connected at equal intervals on the front end face of the longitudinal section of the U-shaped frame. A strip frame is fixedly connected to the front end face of the support block on the left side. Several spray nozzles are fixedly connected at equal intervals on the left and right sides of the front part of the strip frame. A delivery pipe is connected to the rear of each spray nozzle. The slide plate and the support block on the left side are fixedly connected to each other.

[0010] In one possible implementation, the valve unit includes a valve housing connected to the rear end of a connecting pipe. A valve plate is slidably connected inside the valve housing. A through hole is provided on the upper part of the valve plate. Limiting strips are symmetrically fixedly connected to the front end face of the valve plate. A sleeve sleeved on the outside of the transmission belt is rotatably connected to the front end face of the valve plate through a connecting column. Several arc-shaped pieces that abut against the surface of the transmission belt are fixedly connected to the inner circumference of the sleeve through top springs at equal intervals. A material conveying hose is connected to the rear part of the valve housing.

[0011] In one possible implementation, the upper end face of the rectangular mounting frame is fixedly connected to a strip seat by an L-shaped rod, and the upper end face of the strip seat is provided with a plurality of mounting holes at equal intervals, and each mounting hole is provided with an air blower.

[0012] In one possible implementation, the upper surface of the movable platform is provided with a placement groove for placing the material cylinder, and a spring telescopic top column is fixedly connected to the upper surface of the movable platform by a protrusion. An arc-shaped clamp for cooperating with the placement groove is fixedly connected to the end of the spring telescopic top column away from the protrusion.

[0013] As can be seen from the above technical solutions, the present invention has the following advantages:

[0014] In this invention, during the upward spraying process of the strip-shaped spray head, the combination of screw, bevel gear, annular disk, rotating ring and bevel gear ring drives the fan-shaped plates to move away from each other, so that the opening at the connection between the cavity in the rectangular seat and the connecting hose gradually increases. The reinforcement material sprayed onto the pit wall gradually becomes thicker from bottom to top. Subsequently, as the material gradually dries, it will gradually flow downward under the action of gravity and automatically and evenly cover the pit wall. This ensures that the reinforcement material can be evenly sprayed onto the pit wall, improving the reinforcement and protection effect of the pit wall.

[0015] In this invention, the combination of the bearing block and the bidirectional telescopic rod drives the spray nozzle and the scraper to move in opposite directions simultaneously, thereby organically combining the pit wall cleaning and the application of polymer cement emulsion in the previous steps and accelerating the treatment efficiency of the foundation pit wall.

[0016] In this invention, a single driving source is used to drive the incremental spraying mechanism and the integrated cleaning and coating mechanism, enabling them to operate simultaneously and reducing the need for a single drive. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the spraying treatment equipment for the reinforcement material of the building foundation pit wall provided by the present invention (the strip seat is hidden).

[0019] Figure 2 This is a rear-view schematic diagram of the overall structure provided by the present invention.

[0020] Figure 3 This is a schematic diagram of the connection structure between the incremental spraying mechanism, the integrated cleaning and coating mechanism, and the rectangular mounting frame provided by the present invention.

[0021] Figure 4 This is a schematic diagram of the installation structure of the incremental spraying mechanism provided by the present invention from a rear-view perspective.

[0022] Figure 5 A cross-sectional structural diagram of the variable component provided by the present invention (one of the sector plates is not shown).

[0023] Figure 6 This is a cross-sectional view of the variable component provided by the present invention.

[0024] Figure 7 This is a schematic diagram of the opening and closing valve unit structure provided by the present invention.

[0025] The above figures include the following reference numerals:

[0026] 1. Moving platform; 2. L-shaped frame; 3. Electric telescopic frame; 4. Rectangular mounting frame; 5. Incremental spraying mechanism; 51. Variable component; 511. Rectangular base; 512. Cavity; 513. Sector plate; 514. Screw; 515. Bevel gear; 516. Annular disc; 517. Rotary ring; 518. Bevel gear ring; 52. Rope pulley; 53. Drive belt; 54. Vertical frame; 55. Connecting hose; 56. Strip spray head; 57. Connecting pipe; 58. 581. Valve housing; 582. Valve plate; 583. Through hole; 584. Limiting strip; 585. Sleeve; 586. Arc-shaped plate; 6. Integrated cleaning and coating mechanism; 61. Slide rod; 62. Bearing block; 63. Bidirectional telescopic rod; 64. U-shaped frame; 65. Elastic scraper; 66. Spray nozzle; 67. Delivery pipe; 7. Drive component; 71. Vertical plate; 72. Slide plate; 73. Reciprocating electric telescopic rod; 8. Strip seat; 9. Placement slot; 10. Arc-shaped clamp. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Please see Figure 1 , Figure 2 and Figure 3 This invention provides a technical solution: a spraying treatment device for reinforcing the walls of a building foundation pit, comprising a mobile platform 1, a wheel frame rotatably connected to the four corners of the lower end face of the mobile platform 1, and mobile wheels rotatably connected to the wheel frame via a rotating shaft. An L-shaped frame 2 is fixedly connected to the rear end face of the mobile platform 1. A rectangular mounting frame 4 is fixedly connected to the lower end face of the vertical section of the L-shaped frame 2 via an electric telescopic frame 3. An incremental spraying mechanism 5 for spraying reinforcing materials onto the foundation pit walls is installed on the left side of the rectangular mounting frame 4. A cleaning and coating integrated mechanism 6 for cleaning the surface of the foundation pit walls and applying waterproof materials is installed on the right side of the rectangular mounting frame 4. A driving component 7 for driving the incremental spraying mechanism 5 and the cleaning and coating integrated mechanism 6 is provided on the opposite side of the horizontal section of the rectangular mounting frame 4.

[0029] Please see Figure 1 In this embodiment, the upper end face of the moving platform 1 is provided with a placement groove 9 for placing the material cylinder. The upper end face of the moving platform 1 is fixedly connected to a spring telescopic top column through a protrusion. The end of the spring telescopic top column away from the protrusion is fixedly connected to an arc-shaped clamp 10 for cooperating with the placement groove 9.

[0030] Place the mobile platform 1 above the foundation pit, then use the electric telescopic frame 3 to drive the rectangular installation frame 4 into the foundation pit, and adjust the position of the rectangular installation frame 4 to make it parallel to the foundation pit wall. Then, put the material cylinder containing the reinforcement material into the placement slot 9, and then use the spring telescopic top column to push the arc-shaped pressure hoop 10 to abut against the outside of the material cylinder to limit its movement.

[0031] Please see Figure 3 and Figure 4 In this embodiment, the driving component 7 includes a vertical plate 71 fixedly connected to the upper and lower opposite sides of the rectangular mounting frame 4. A strip-shaped through groove is provided on the vertical plate 71. A sliding plate 72 is slidably connected inside the strip-shaped through groove. A reciprocating electric telescopic rod 73 is fixedly connected between the sliding plate 72 and the lower wall of the strip-shaped through groove. The cleaning and coating integrated mechanism 6 includes two sliding rods 61 fixedly connected to the upper and lower opposite sides of the rectangular mounting frame 4. A bearing block 62 is slidably connected to the outside of each sliding rod 61. The upper cavity wall of the rectangular mounting frame 4, located in the middle between the two sliding rods 61, is hinged by a vertical rod. There is a bidirectional telescopic rod 63, and the end of the bidirectional telescopic rod 63 is hinged to the support block 62 through a lug. A U-shaped frame 64 is fixedly connected to the front face of the support block 62 on the right side through a spring telescopic column. Several elastic scrapers 65 are fixedly connected at equal intervals on the front face of the longitudinal section of the U-shaped frame 64. A strip frame is fixedly connected to the front face of the support block 62 on the left side. Several spray nozzles 66 are fixedly connected at equal intervals on the left and right sides of the front part of the strip frame. The rear of the spray nozzles 66 are connected to a delivery pipe 67. The slide plate 72 and the support block 62 on the left side are fixedly connected to each other.

[0032] The delivery pipe 67 is connected to an external storage cylinder containing polymer cement emulsion. The moving platform 1 is controlled to move along the edge of the foundation pit, thereby moving the rectangular mounting frame 4 along the pit wall. Then, the reciprocating electric telescopic rod 73 in the drive unit 7 is controlled to reciprocate, thereby driving the slide plate 72 to move up and down. The slide plate 72 then drives the cleaning and coating integrated mechanism 6 to operate. The slide plate 72 drives the left-side bearing block 62 to rise and slide back and forth. The left-side bearing block 62 then drives the bidirectional telescopic rod 63 to rotate around the hinge point, thereby driving the other bearing block 62 on the right side and the bearing block 62 on the left side to move back and forth. Block 62 moves in the opposite direction. The right-side support block 62 pushes the U-shaped frame 64 against the pit wall through the spring telescopic rod, thereby causing the elastic scraper 65 to abut against the pit wall. The right-side support block 62 moves up and down, driving the elastic scraper 65 to move synchronously, thereby scraping off and cleaning loose soil and other debris on the pit wall. The external polymer cement emulsion is introduced into the delivery pipe 67 and then atomized and sprayed out through the spray nozzle 66. The left-side support block 62 then drives the spray nozzle 66 to move up and down, evenly spraying the polymer cement emulsion onto the pit wall to increase the waterproof performance of the pit wall.

[0033] Please see Figure 3 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the incremental spraying mechanism 5 includes: a variable component 51 mounted on the bottom of the rectangular mounting frame 4 via a support rod; two rope pulleys 52 rotatably connected to opposite sides of the transverse section of the rectangular mounting frame 4 via connecting rods; a transmission belt 53 is sleeved on the outside of the two rope pulleys 52 and the variable component 51; a vertical frame 54 is fixedly connected to the front of the rectangular mounting frame 4; a strip-shaped spray head 56 is slidably connected to the front of the vertical frame 54 via a connecting hose 55 and connected to the front of the variable component 51; and an opening / closing valve unit 58 for cooperating with the transmission belt 53 is connected to the rear of the variable component 51 via a connecting pipe 57. The variable component 51 includes: a rectangular seat 511 fixedly connected to the upper end of the support rod; a cavity 512 opened inside the rectangular seat 511; and four fan-shaped plates 513 slidably arranged circumferentially in the cavity 512. A guide groove is opened on the inner wall of the cavity 512. Guide strips are fixedly connected to the front and rear sides of the fan-shaped plates 513, and the guide strips are slidably connected inside the guide grooves. The two sector plates 513 have opposing inclined surfaces that fit together, which allows the reinforcing material between them to be squeezed out when the sector plates 513 move closer to each other, thus preventing the reinforcing material from jamming the two adjacent sector plates 513 and preventing them from fitting together. Several circumferentially equidistant screws 514 are rotatably connected to the outside of the rectangular base 511 and are corresponding to the sector plates 513. The screws 514 and their corresponding sector plates 513 are threaded together. A bevel gear 515 is fixedly connected to the end of the screw 514 away from the sector plate 513. Circular discs 516 are symmetrically fitted and fixedly connected to the outside of the rectangular base 511. A rotating ring 517 fitted by the transmission belt 53 is rotatably connected between the two circular discs 516. A bevel gear ring 518 that meshes with the bevel gear 515 is fixedly connected inside the rotating ring 517 through a connecting block. The slide plate 72 and the strip spray head 56 are fixedly connected to each other through a fixing plate. The vertical section of the right side of the transmission belt 53 is fixedly connected inside the slide plate 72.

[0034] Please see Figure 4 and Figure 7 The valve unit 58 includes a valve housing 581 connected to the rear end of the connecting pipe 57. A valve plate 582 is slidably connected inside the valve housing 581. A through hole 583 is opened on the upper part of the valve plate 582. Limiting strips 584 are symmetrically fixedly connected to the front end face of the valve plate 582. A sleeve 585 sleeved on the outside of the transmission belt 53 is rotatably connected to the front end face of the valve plate 582 through a connecting column. Several arc-shaped pieces 586 that abut against the surface of the transmission belt 53 are fixedly connected to the inner circumference of the sleeve 585 through a top spring at equal intervals. A material conveying hose is connected to the rear part of the valve housing 581.

[0035] The control platform 1 moves intermittently so that the incremental spraying mechanism 5 can spray the reinforcing material onto the pit wall when it is stationary. When the slide plate 72 moves upwards during its reciprocating motion:

[0036] The drive belt 53 moves the spray head 56 from bottom to top, simultaneously moving the drive belt 53 counterclockwise. The drive belt 53 then moves the arc-shaped plate 586, which it is in contact with, and the arc-shaped plate 586 then moves the valve plate 582 downward through the sleeve and connecting column until the through hole 583 of the valve plate 582 moves into the valve housing 581, so that the valve housing 581, the connecting pipe 57 and the material conveying hose are in a connected state. At this time, the limiting strip 584 located on the upper part of the valve plate 582 also abuts against the upper part of the valve housing 581, so that the arc-shaped plate 586 stops moving downward. The drive belt 53 and the arc-shaped plate 586 change from a relatively static state to a state of sliding friction. The counterclockwise movement of the drive belt 53 drives the rotating ring 517 to rotate, and the rotation then drives the bevel gear ring 5 through the connecting block. 18 rotates, and the bevel gear ring 518 drives the screw 514 to rotate through the bevel gear 515. The spiral rotation causes the fan-shaped plates 513 to move away from each other, so that the opening between the cavity 512 and the connecting hose 55 gradually increases, thereby increasing the amount of reinforcing material entering the connecting hose 55. The reinforcing material is then sprayed onto the pit wall through the strip spray head 56. As the amount of material entering the strip spray head 56 gradually increases, the reinforcing material sprayed onto the pit wall gradually becomes thicker from bottom to top. Subsequently, as the material gradually dries, it will gradually flow downward under the action of gravity and automatically and evenly cover the pit wall, thus ensuring that the reinforcing material can be evenly sprayed onto the pit wall, improving the reinforcement and protection effect of the pit wall.

[0037] When the slide plate 72 descends, it pulls the transmission belt 53 to move clockwise. The transmission belt 53 drives the arc-shaped plate 586, which is in contact with its outside, to move upward. The arc-shaped plate 586 then drives the valve plate 582 to rise through the sleeve 585 and the connecting column until the valve plate 582 rises to the limit bar 584 located at its lower part and abuts the lower part of the valve housing 581. At this time, the through hole 583 on the valve plate 582 moves out of the valve housing 581, and the valve housing 581 is in a closed state, cutting off the connection between the connecting pipe 57 and the connecting hose 55 until the slide plate 72 moves to the lowest part, and then rises again to repeat the above steps, in a cycle.

[0038] Please see Figure 3 In this embodiment, a strip seat 8 is fixedly connected to the upper end of the rectangular mounting frame 4 by an L-shaped rod. Several mounting holes are equidistantly opened on the upper end of the strip seat 8. Each mounting hole is equipped with an air blower. As the rectangular mounting frame 4 moves along the pit wall, the automatically driven air blower rotates. The rotating air blower blows the airflow downwards, which blows the airflow on the surface of the reinforcement material layer sprayed on the pit wall, thereby accelerating the drying speed of the reinforcement material and enabling the reinforcement material to quickly solidify and cover the pit wall.

[0039] During operation, the cylinder containing the reinforcing material is first placed into the placement trough 9 and limited by the arc-shaped clamp 10 against the surface of the cylinder. The conveying hose is then connected to the cylinder. Next, the storage cylinder containing polymer cement emulsion is placed on the moving platform 1 and the conveying pipe 67 (hose) is connected to the storage cylinder. Then, the moving platform 1 is controlled to move along the edge of the foundation pit. The rectangular installation frame 4 is then extended into the foundation pit by the electric telescopic frame 3, so that the rectangular installation frame 4 faces the pit wall. Then, the drive component 7 is controlled to run. The drive component 7 drives the cleaning and coating integrated mechanism 6 to clean the pit wall surface and spray polymer cement emulsion. At the same time, the drive component 7 also drives the incremental spraying mechanism 5 to evenly spray the reinforcing material onto the pit wall, thus completing the reinforcement spraying treatment of the pit wall.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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.

[0041] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A spraying treatment device for reinforcing the walls of a building foundation pit, comprising a movable platform (1), a wheel frame rotatably connected to the four corners of the lower end face of the movable platform (1), and movable wheels rotatably connected to the wheel frame via a rotating shaft, characterized in that: The rear end face of the mobile platform (1) is fixedly connected to an L-shaped frame (2), and the lower end face of the vertical section of the L-shaped frame (2) is fixedly connected to a rectangular mounting frame (4) via an electric telescopic frame (3). The left side of the rectangular mounting frame (4) is equipped with an incremental spraying mechanism (5) for spraying reinforcement material onto the foundation pit wall. The incremental spraying mechanism (5) includes: A variable component (51) is mounted on the bottom of the rectangular mounting frame (4) via a support rod. Two rope pulleys (52) are rotatably connected to opposite sides of the transverse section of the rectangular mounting frame (4) via connecting rods. A transmission belt (53) is fitted around the two rope pulleys (52) and the variable component (51). A vertical frame (54) is fixedly connected to the front of the rectangular mounting frame (4). A strip spray head (56) is slidably connected to the front of the vertical frame (54) via a connecting hose (55) and communicates with the front of the variable component (51). An opening and closing valve unit (58) for cooperating with the transmission belt (53) is connected to the rear of the variable component (51) via a connecting pipe (57). The variable component (51) includes: A rectangular seat (511) is fixedly connected to the upper end of the support rod. A cavity (512) is opened inside the rectangular seat (511). Four sector plates (513) are equidistantly arranged in the cavity (512). Several screws (514) are equidistantly rotatably connected to the outside of the rectangular seat (511) and corresponding to the sector plates (513). The screws (514) and their corresponding sector plates (513) are threadedly connected. A bevel gear (515) is fixedly connected to the end of the screw (514) away from the sector plate (513). A ring-shaped disk (516) is symmetrically sleeved and fixedly connected to the outside of the rectangular seat (511). A rotating ring (517) sleeved by a transmission belt (53) is rotatably connected between the two ring-shaped disks (516). A bevel gear ring (518) that meshes with the bevel gear (515) is fixedly connected inside the rotating ring (517) through a connecting block. The rectangular mounting frame (4) is equipped with a cleaning and coating integrated mechanism (6) for cleaning the surface of the foundation pit wall and applying waterproof material. The rectangular mounting frame (4) is provided with a drive component (7) on the opposite side of the horizontal section for driving the incremental spraying mechanism (5) and the cleaning and coating integrated mechanism (6). The drive unit (7) includes a vertical plate (71) fixedly connected to the upper and lower opposite sides of the rectangular mounting frame (4). A strip-shaped through groove is provided on the vertical plate (71). A sliding plate (72) is slidably connected inside the strip-shaped through groove. A reciprocating electric telescopic rod (73) is fixedly connected between the sliding plate (72) and the lower wall of the strip-shaped through groove. The sliding plate (72) and the strip spray head (56) are fixedly connected to each other by a fixing plate. The right vertical section of the transmission belt (53) is fixedly connected inside the sliding plate (72).

2. The spraying equipment for reinforcing the walls of building foundation pits according to claim 1, characterized in that: The cleaning and coating integrated mechanism (6) includes two slide rods (61) fixedly connected to the upper and lower opposite sides of the rectangular mounting frame (4). Each slide rod (61) is slidably connected to a bearing block (62). A bidirectional telescopic rod (63) is hinged to the upper cavity wall of the rectangular mounting frame (4) and located in the middle between the two slide rods (61) via a vertical rod. The end of the bidirectional telescopic rod (63) is hinged to the bearing block (62) via a lug. A U-shaped frame (64) is fixedly connected to the front end face of the bearing block (62) on the right side via a spring telescopic column. Several elastic scrapers (65) are fixedly connected at equal intervals on the front end face of the longitudinal section of the U-shaped frame (64). A strip frame is fixedly connected to the front end face of the bearing block (62) on the left side. Several spray nozzles (66) are fixedly connected at equal intervals on the left and right sides of the front part of the strip frame. The rear part of the spray nozzles (66) is connected to a delivery pipe (67). The slide plate (72) and the bearing block (62) on the left side are fixedly connected to each other.

3. The spraying equipment for reinforcing the walls of building foundation pits according to claim 1, characterized in that: The valve unit (58) includes a valve housing (581) connected to the rear end of the connecting pipe (57). A valve plate (582) is slidably connected inside the valve housing (581). A through hole (583) is opened on the upper part of the valve plate (582). Limiting strips (584) are symmetrically fixedly connected to the front end face of the valve plate (582). A sleeve (585) sleeved on the outside of the transmission belt (53) is rotatably connected to the front end face of the valve plate (582) through a connecting column. Several arc-shaped pieces (586) that abut against the surface of the transmission belt (53) are fixedly connected to the inner circumference of the sleeve (585) through a top spring at equal intervals. A material conveying hose is connected to the rear part of the valve housing (581).

4. The spraying equipment for reinforcing the walls of building foundation pits according to claim 1, characterized in that: The upper end face of the rectangular mounting frame (4) is fixedly connected to a strip seat (8) by an L-shaped rod. The upper end face of the strip seat (8) is provided with several mounting holes at equal intervals, and each mounting hole is provided with an air blower.

5. The spraying equipment for reinforcing the walls of building foundation pits according to claim 1, characterized in that: The upper surface of the moving platform (1) is provided with a placement groove (9) for placing the material cylinder. A spring telescopic top column is fixedly connected to the upper surface of the moving platform (1) through a protrusion. An arc-shaped clamp (10) for cooperating with the placement groove (9) is fixedly connected to the end of the spring telescopic top column away from the protrusion.

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