Concrete maintenance device for building construction

Abstract

The present invention discloses a concrete maintenance device for construction, which specifically relates to the technical field of concrete maintenance equipment, including a frame and two slides, wherein a hanger is fixedly installed in the middle of the frame at one side of the bottom end, a servo motor 1 is fixedly installed on the hanger, the output shaft of the servo motor 1 extends out of the top of the frame, a bevel gear 2 is fixedly installed on the output shaft of the servo motor 1 through a coupling, a bevel gear 1 is fixedly installed on the hinge rod on one side, and the bevel gear 1 and the bevel gear 2 are meshed with each other. The concrete maintenance device for construction described in the present invention is provided with a servo motor 1, which drives the bevel gear 1 to rotate through the bevel gear 2, so that the sliding seat can rotate at multiple angles, and as the sliding seat rotates, the multiple atomizing nozzles on the sliding seat can adjust the spraying direction, so that water pumping and maintenance operations can be performed on ground structures, wall structures and roofs.

Description

Technical Field

[0001] The invention relates to the technical field of concrete maintenance equipment, and in particular to a concrete maintenance device for building construction. Background Art

[0002] After pouring, concrete needs to be watered and cured, because water is a necessary condition for the hydration reaction of concrete. Adequate water helps the cement to fully hydrate and improve the strength of concrete. Keeping the concrete moist can reduce shrinkage cracks caused by water evaporation, which is conducive to the stable growth of concrete strength and the improvement of durability.

[0003] The Chinese invention patent CN114352021A discloses a concrete maintenance device for construction, including a support platform and a support leg, and the support leg is installed on the outside of the support platform. The concrete maintenance device for construction also includes: a water injection component, which is arranged on the surface of the support platform and stores water inside; a water application component, which is connected to the water injection component, and the water injection component is used to inject water into the water application component, and the water application component is used to apply water on the concrete surface. The present invention can evenly apply water on the surface of concrete by applying water to the concrete surface, and can also prevent water from flowing to lower-lying areas, thereby improving the application range of the concrete maintenance equipment.

[0004] The device applies water to the concrete for curing through a water application component, which can effectively apply water evenly on the concrete surface, avoiding the problem of water accumulation on lower terrain during the water application and curing process. However, in construction, structures are roughly divided into walls, floors and roofs, and the device can only apply water to the floor for curing. In view of this, we propose a concrete maintenance device for construction to solve the above-mentioned problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a concrete maintenance device for construction, which can effectively solve the above problems.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A concrete maintenance device for construction, comprising a frame and two slides, a water storage tank is fixedly installed at the bottom of the frame, a penetrating movable groove is opened along the horizontal middle of the top of the frame, and hinge blocks 1 are symmetrically installed on both sides of the movable groove on the frame;

[0008] A sliding seat is provided between the two articulated blocks 1, and articulated rods hinged to the articulated blocks 1 are fixedly installed on both sides of the sliding seat close to the two articulated blocks 1;

[0009] The two slides are symmetrically arranged on the slide seat, and both of the two slides are regular trapezoids that are narrow at the top and wide at the bottom. The bottom ends of the two slides are fixedly connected to the two sides away from the axis thereof with fixing rods;

[0010] An inclined plate is fixedly connected to one side of the top of the two slides, and atomizing nozzles are equidistantly installed on the inclined plate. A connecting plate is fixedly installed on the top of the two slides near the inclined plate, and a water distribution box is fixedly installed on the connecting plate. Connecting pipes connected to the inside of the water distribution box are equidistantly installed at the bottom of the water distribution box, and the other ends of the multiple connecting pipes are respectively fixedly connected to multiple atomizing nozzles;

[0011] A water pump is fixedly installed in the water storage tank, and the water spray port of the water pump is connected to the water distribution tank through a hose.

[0012] A hanger is fixedly installed on the middle part of the frame at one side of the bottom end, and a servo motor 1 is fixedly installed on the hanger. The output shaft of the servo motor 1 extends out of the top of the frame, and a bevel gear 2 is fixedly installed on the output shaft of the servo motor 1 through a coupling. A bevel gear 1 is fixedly installed on the hinge rod on one side, and the bevel gear 1 and the bevel gear 2 are meshed with each other.

[0013] Preferably, a locking assembly is provided on a side of the frame away from the bevel gear 1, and the locking assembly comprises a pry bar, a locking gear and a hinge seat;

[0014] The locking gear is fixedly connected to the hinge rod on the other side, and a mounting hole is provided at the top of the frame body, directly below the locking gear, and a spring is provided in the mounting hole;

[0015] The hinge seat is fixedly mounted on the frame, the pry bar is located at the lower part of the locking gear, one end of the pry bar away from the middle is fixedly mounted with a hinge block 2 hinged to the hinge seat, the other end of the hinge block 2 is fixedly mounted with a push handle, and the other end of the pry bar away from the middle is fixedly mounted with a locking block engaged with the locking gear;

[0016] The bottom end of the pry bar is located below the locking block and is fixedly mounted with a pressure rod matched with the mounting hole. The head and tail ends of the spring are respectively fixedly mounted between the inner bottom wall of the mounting hole and the pressure rod.

[0017] Preferably, the two slides are slidably mounted on a slide groove provided on a slide seat, a servo motor 2 is fixedly mounted on the middle of the bottom end of the slide seat, and an output shaft of the servo motor 2 is fixedly connected to a screw rod through a coupling;

[0018] A connecting rod is fixedly installed at the middle of the bottom ends of the two slides, a nut is fixedly installed at the axis center of the bottom end of the connecting rod, and the nut is threadedly connected to the screw rod.

[0019] Preferably, a water collecting box is fixedly installed on the bottom of the two slides away from the axis thereof, the water collecting box is located at the lower part of the atomizing nozzle, a water inlet is opened on the top of the water collecting box on the side away from the sliding seat, and a hose two connected to the interior of the water collecting box is installed at the bottom of the water collecting box, and the other end of the hose two is connected to the water storage tank.

[0020] Preferably, a mounting frame is fixedly installed in the water collecting box, a filter is installed on the mounting frame, and a rubber pad is glued and installed on the fixing rod close to the water collecting box.

[0021] Preferably, universal wheels are symmetrically mounted in pairs at four corners of the bottom end of the frame, and handles are symmetrically mounted on a side of the top end of the frame away from the water collecting box.

[0022] Preferably, a power switch 1 and a power switch 2 are respectively provided on the two handles, wherein the power switch 2 is provided on the handle on one side close to the locking assembly, and the power switch 1 is provided on the handle on the other side.

[0023] Preferably, a water supply port is provided on one side of the water storage tank along its width direction, and a sealing cover is threadedly mounted on the water supply port.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. In the present invention, a servo motor 1 is provided, and the servo motor 1 drives the bevel gear 1 to rotate through the bevel gear 2, so that the sliding seat can rotate at multiple angles. As the sliding seat rotates, the multiple atomizing nozzles on the sliding seat can adjust the spraying direction, so that watering maintenance operations can be performed on ground structures, wall structures and roofs.

[0026] 2. In the present invention, a water pump is provided to pump the water in the water storage tank into the water distribution tank, and then the water flow is evenly atomized and sprayed onto the structure through multiple atomizing nozzles, thereby avoiding the problem of water accumulation caused by excessive water flow when watering and curing the concrete structure.

[0027] 3. In the present invention, a servo motor 2 is provided, and the servo motor 2 is installed at the bottom end of the sliding seat. The two slides form a whole through two fixed rods. The whole formed by the two slides slides on the slide groove on the sliding seat. Nuts are installed at the lower part of the two slides, and the nut threads are installed on the screw rod. The servo motor 2 is started. When the screw rod is driven to rotate by the servo motor 2, the whole formed by the two slides is driven to extend and retract along the slide groove, so that the atomizing nozzle on the slide can effectively operate when facing higher walls and roofs.

[0028] 4. In the actual use of the present invention, since the concrete cannot completely absorb water instantly when the roof structure and the wall structure are watered and maintained, a water collecting box is provided to collect excess water and re-introduce it into the water storage tank for recycling, thereby avoiding dripping of the wall structure and the roof structure after watering and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the side elevation structure of the overall structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the cross-sectional disassembly structure of the water storage tank and the sealing cover in the present invention;

[0032] Figure 4 It is a schematic diagram of the partial connection structure between two slides and the atomizing nozzle in the present invention;

[0033] Figure 5 For the present invention Figure 1 Schematic diagram of the enlarged structure of the node at A in the middle;

[0034] Figure 6 It is a schematic diagram of the partial split structure of the two slides and the slide seat in the present invention;

[0035] Figure 7 It is a schematic diagram of the disassembled structure of the locking assembly in the present invention;

[0036] Figure 8 It is a schematic diagram of the cross-sectional structure of the water collecting box in the present invention.

[0037] In the figure: 1, frame; 11, movable groove; 12, universal wheel; 13, hinge block 1; 2, water storage tank; 21, water pump; 211, hose 1; 22, sealing cover; 221, water supply port; 3, sliding seat; 31, hinge rod; 32, slide groove; 4, slide; 41, fixed rod; 42, connecting rod; 421, nut; 43, connecting plate; 431, water distribution tank; 432, connecting pipe; 44, inclined plate; 45, atomizing nozzle; 46, water collecting box; 461, hose 2; 462. Installation frame; 463. Filter; 464. Water inlet; 47. Rubber pad; 5. Servo motor one; 51. Hanger; 52. Bevel gear one; 53. Bevel gear two; 6. Servo motor two; 61. Screw; 7. Locking assembly; 71. Pry bar; 711. Locking block; 712. Articulated block two; 72. Locking gear; 73. Installation hole; 74. Spring; 75. Pressure rod; 76. Articulated seat; 77. Push handle; 8. Handle; 81. Switch one; 82. Switch two. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] Embodiment 1

[0040] like Figure 1 - Figure 7 As shown, a concrete maintenance device for construction includes a frame 1 and two slides 4, a water storage tank 2 is fixedly installed at the bottom of the frame 1, a penetrating movable groove 11 is opened along the horizontal middle of the top of the frame 1, hinge blocks 13 are symmetrically installed on both sides of the movable groove 11 on the frame 1, a sliding seat 3 is arranged between the two hinge blocks 13, and hinge rods 31 hinged to the hinge blocks 13 are fixedly installed on both sides of the sliding seat 3 near the two hinge blocks 13, and the two slides 4 are symmetrically arranged on the sliding seat 3. The two slides 4 are both regular trapezoids with narrow upper and wide lower ends, and the bottom ends of the two slides 4 are far away from their axis. A fixing rod 41 is fixedly connected on both sides, an inclined plate 44 is fixedly connected on one side along the top of the two slides 4, and atomizing nozzles 45 are equidistantly installed on the inclined plate 44. A connecting plate 43 is fixedly installed on the top of the two slides 4 near the inclined plate 44, and a water distribution tank 431 is fixedly installed on the connecting plate 43. A connecting pipe 432 connected to the inside of the water distribution tank 431 is equidistantly installed at the bottom end of the water distribution tank 431, and the other ends of the multiple connecting pipes 432 are respectively fixedly connected to the multiple atomizing nozzles 45. A water pump 21 is fixedly installed in the water storage tank 2, and the water spray port of the water pump 21 is connected to the water distribution tank 431 through a hose 211;

[0041] By setting up a water pump 21, the stored water in the water tank 2 is pumped into the water distribution tank 431 through a hose 211. The water flow is divided into multiple atomizing nozzles 45 through the water distribution tank 431 and is atomized and sprayed out by the atomizing nozzles 45, so that the cement structure can be evenly watered and maintained to avoid the problem of water accumulation caused by excessive water flow.

[0042] A hanger 51 is fixedly installed on the middle part of the bottom side of the frame 1, and a servo motor 5 is fixedly installed on the hanger 51. The output shaft of the servo motor 5 extends out of the top of the frame 1. A bevel gear 2 53 is fixedly installed on the output shaft of the servo motor 5 through a coupling. A bevel gear 1 52 is fixedly installed on the hinge rod 31 on one side, and the bevel gear 1 52 and the bevel gear 2 53 are meshed with each other.

[0043] The bevel gear 2 53 is rotated by the servo motor 1 5 to drive the bevel gear 1 52 to rotate, so that the sliding seat 3 can rotate at multiple angles. The two slides 4 are set on the sliding seat 3, and the multiple atomizing nozzles 45 are installed on the inclined plate 44 on one side of the two slides 4. As the sliding seat 3 rotates, the multiple atomizing nozzles 45 on the slide 4 can adjust the spraying direction, so that watering maintenance operations can be performed on ground structures, wall structures and roofs.

[0044] When the servo motor 15 drives the sliding seat 3 to complete the turning, the servo motor 15 will stop working. In order to prevent the pressure load on the sliding seat 3 from being too large, causing the servo motor 15 to be unable to lock it, a locking assembly 7 is provided to lock the sliding seat 3 to a limited position;

[0045] Specifically, a locking assembly 7 is provided on the side of the frame 1 away from the bevel gear 52, and the locking assembly 7 includes a pry bar 71, a locking gear 72 and a hinge seat 76. The locking gear 72 is fixedly connected to the hinge rod 31 on the other side. A mounting hole 73 is provided at the top of the frame 1, directly below the locking gear 72. A spring 74 is provided in the mounting hole 73. The hinge seat 76 is fixedly installed on the frame 1. The pry bar 71 is located at the lower part of the locking gear 72. One end of the middle portion is fixedly mounted with an articulated block 712 hinged to an articulated seat 76, and the other end of the articulated block 712 is fixedly mounted with a push handle 77. The other end of the pry bar 71 away from the middle portion is fixedly mounted with a locking block 711 engaged with the locking gear 72. The bottom end of the pry bar 71 is located below the locking block 711 and is fixedly mounted with a pressure rod 75 adapted to the mounting hole 73. The head and tail ends of the spring 74 are respectively fixedly mounted between the inner bottom wall of the mounting hole 73 and the pressure rod 75.

[0046] When the locking cam 72 is in the unlocking state, the locking cam 73 is in the unlocking state, and the locking cam 73 is in the unlocking state.

[0047] Embodiment 2

[0048] Since the wall structure and the roof structure are both relatively high structures, the atomizing nozzle 45 should be raised under certain circumstances to prevent it from being unable to reach the higher structures;

[0049] like Figure 1 and Figure 6 As shown, the two slides 4 are slidably mounted on the slide groove 32 opened on the slide seat 3, a servo motor 6 is fixedly mounted in the middle of the bottom end of the slide seat 3, the output shaft of the servo motor 6 is fixedly connected to the screw rod 61 through a coupling, a connecting rod 42 is fixedly mounted in the middle of the bottom end of the two slides 4, a nut 421 is fixedly mounted at the axis center of the bottom end of the connecting rod 42, and the nut 421 is threadedly connected to the screw rod 61;

[0050] Start the servo motor 2 6. When the screw rod 61 is driven to rotate by the servo motor 2 6, the whole formed by the two slides 4 is driven to extend and retract along the slide groove 32, so that the atomizing nozzle 45 on the slide 4 can effectively operate when facing higher walls and roofs.

[0051] Embodiment 3

[0052] During the watering and curing process of the wall and the roof, the concrete cannot completely absorb the water instantly. In order to prevent the water from dripping on the roof and the wall, a water collecting box 46 is provided to collect the water.

[0053] like Figure 1 , Figure 4 and Figure 8 As shown, a water collecting box 46 is fixedly installed on the bottom of the two slides 4 away from the axis thereof, and the water collecting box 46 is located at the lower part of the atomizing nozzle 45. A water inlet 464 is provided on the top of the water collecting box 46 away from the sliding seat 3. A second hose 461 connected to the inside of the water collecting box 46 is installed at the bottom thereof, and the other end of the second hose 461 is connected to the water storage tank 2.

[0054] Since the two slides 4 are narrow at the top and wide at the bottom, and the water collecting box 46 is installed at the wider bottom, the water collecting box 46 is convex relative to the atomizing nozzle 45. Whenever water pumping maintenance work is performed, the water collecting box 46 will first contact the wall, so that the falling water on the wall and the roof flows into the water collecting box 46 through the water inlet 464. The water collecting box 46 is connected to the water storage tank 2 through the second hose 461. In this way, the accumulated water in the water collecting box 46 will automatically flow into the water storage tank 2 for recycling due to the height difference;

[0055] It has been proposed above that the two slides 4 can be slid and retracted by the servo motor 26, so when watering and maintaining the roof during actual use, there is no need to adjust the two slides 4 to a vertical 90° angle to avoid the water collection box 46 being unable to collect dripping water from the roof due to angle problems.

[0056] Furthermore, a mounting frame 462 is fixedly installed in the water collecting box 46, a filter screen 463 is installed on the mounting frame 462, and a rubber pad 47 is glued and installed on the fixing rod 41 close to the water collecting box 46;

[0057] The water drops from the walls and roofs are mixed with ash, sand, and other debris. In order to prevent them from accumulating in the water tank 2 and affecting the power of the water pump 21, they are filtered by setting a filter 463 to prevent them from flowing into the water tank 2 through the hose 2 461;

[0058] It is worth mentioning that a rubber pad 47 is glued and installed on the fixing rod 41 near the water collecting box 46, so that when the fixing rod 41 is attached to the wall, the rubber pad 47 can prevent it from making hard collision contact with the wall due to improper operation, causing damage to the wall.

[0059] Furthermore, a water supply port 221 is provided on one side of the water storage tank 2 along its width direction, and a sealing cover 22 is threadedly mounted on the water supply port 221;

[0060] The water supply port 221 is provided to supply water to and drain water from the water storage tank 2 , and the sealing cover 22 threadedly mounted on the water supply port 221 seals the water supply port 221 .

[0061] Embodiment 4

[0062] like Figure 1 , Figure 2 and Figure 7 As shown, universal wheels 12 are symmetrically installed at the four corners of the bottom of the frame 1, and a handle 8 is symmetrically installed on the side of the top of the frame 1 away from the water collecting box 46;

[0063] The universal wheel 12 is provided to facilitate the movement of the device during water pumping and maintenance operations, and the handle 8 is provided to facilitate the user to push the device.

[0064] Furthermore, the two handles 8 are respectively provided with a power switch 1 81 and a power switch 2 82 , the power switch 2 82 is provided on the handle 8 on one side close to the locking assembly 7 , and the power switch 1 81 is provided on the handle 8 on the other side;

[0065] The opening and closing rotation direction of the servo motor 5 is controlled by setting the electric switch 82, and the opening and closing and rotation direction of the servo motor 6 is controlled by setting the electric switch 81. The electric switch 82 is arranged on the handle 8 near the locking assembly 7. Because when the electric switch 81 starts the servo motor 6, the locking assembly 7 must first release the limit of the sliding seat 3. In this way, in actual use, the user can control the servo motor 5 with one hand through the electric switch 82, and the other hand can conveniently control the locking assembly 7.

[0066] The principle of the electric switch 1 81 and the electric switch 2 82 electrically controlling the servo motor 1 5 and the servo motor 2 6 is realized through the Hall effect of the Hall sensor, which belongs to the prior art. The specific implementation method will not be explained in detail here.

[0067] It should be particularly noted that the specific installation methods of the water pump 21, servo motor 1 5, servo motor 2 6, switch 1 81, switch 2 82 used in the present invention, the circuit connection method and the control method are all conventional designs and will not be elaborated in detail in the present invention.

[0068] The working principle of the present invention is as follows: unscrew the sealing cover 22, add external water source into the water storage tank 2, pump the water in the water storage tank 2 into the water distribution tank 431 through the water pump 21, and then spray the water flow uniformly on the structure through multiple atomizing nozzles 45, and by setting a servo motor 15, the servo motor 15 drives the bevel gear 152 to rotate through the bevel gear 253, so that the sliding seat 3 can rotate at multiple angles. As the sliding seat 3 rotates, the multiple atomizing nozzles 45 on the sliding seat 3 can adjust the spraying direction, so as to spray the ground structure, the wall structure and the roof structure. The top can be used for water pumping maintenance operations. Before starting the servo motor 5, you must first release the limit of the locking assembly 7 on the servo motor 5, push the push handle 77 upward, so that the locking block 711 at the other end of the push handle 77 releases the limit on the mounting hole 73, so that the servo motor 5 can drive the sliding seat 3 to turn, start the servo motor 2 6, when the screw rod 61 is driven to rotate by the servo motor 2 6, it drives the whole formed by the two slides 4 to extend and retract along the slide groove 32, so that the atomizing nozzle 45 on the slide 4 can work effectively when facing higher walls and roofs.

[0069] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A concrete maintenance device for construction, comprising a frame (1) and two slides (4), characterized in that: A water storage tank (2) is fixedly mounted on the bottom of the frame (1); a penetrating movable groove (11) is provided along the horizontal middle portion of the top of the frame (1); hinge blocks (13) are symmetrically mounted on both sides of the movable groove (11) on the frame (1); A sliding seat (3) is provided between the two hinged blocks (13), and hinge rods (31) hingedly connected to the hinged blocks (13) are fixedly mounted on both sides of the sliding seat (3) close to the two hinged blocks (13); The two slides (4) are symmetrically arranged on the slide seat (3), and both of the two slides (4) are in the shape of a regular trapezoid that is narrow at the top and wide at the bottom. The bottom ends of the two slides (4) are fixedly connected to two sides away from the axis thereof with fixing rods (41); An inclined plate (44) is fixedly connected to one side of the top of the two slides (4), and atomizing nozzles (45) are equidistantly mounted on the inclined plate (44). A connecting plate (43) is fixedly mounted on the top of the two slides (4) near the inclined plate (44), and a water distribution box (431) is fixedly mounted on the connecting plate (43). Connecting pipes (432) connected to the inside of the water distribution box (431) are equidistantly mounted at the bottom end of the water distribution box (431), and the other ends of the plurality of connecting pipes (432) are respectively fixedly connected to the plurality of atomizing nozzles (45); A water pump (21) is fixedly installed in the water storage tank (2), and a water spray port of the water pump (21) is connected to the water distribution tank (431) through a hose 1 (211); A hanger (51) is fixedly mounted on the frame (1) at the middle part of one side of the bottom end thereof, a servo motor 1 (5) is fixedly mounted on the hanger (51), an output shaft of the servo motor 1 (5) extends out of the top end of the frame (1), a bevel gear 2 (53) is fixedly mounted on the output shaft of the servo motor 1 (5) via a coupling, a bevel gear 1 (52) is fixedly mounted on the hinge rod (31) on one side, and the bevel gear 1 (52) and the bevel gear 2 (53) are meshed with each other.

2. A concrete maintenance device for construction according to claim 1, characterized in that: A locking assembly (7) is provided on a side of the frame (1) away from the bevel gear one (52), the locking assembly (7) comprising a pry bar (71), a locking gear (72) and a hinge seat (76); The locking gear (72) is fixedly connected to the hinge rod (31) on the other side; a mounting hole (73) is provided at the top end of the frame (1) and directly below the locking gear (72); a spring (74) is provided in the mounting hole (73); The hinge seat (76) is fixedly mounted on the frame (1); the pry bar (71) is located at the lower part of the locking gear (72); an end of the pry bar (71) away from the middle thereof is fixedly mounted with a hinge block 2 (712) hinged to the hinge seat (76); a push handle (77) is fixedly mounted on the other end of the hinge block 2 (712); and a locking block (711) engaged with the locking gear (72) is fixedly mounted on the other end of the pry bar (71) away from the middle thereof; The bottom end of the pry bar (71) is located below the locking block (711) and is fixedly mounted with a pressure rod (75) adapted to the mounting hole (73). The head and tail ends of the spring (74) are respectively fixedly mounted between the inner bottom wall of the mounting hole (73) and the pressure rod (75).

3. A concrete maintenance device for construction according to claim 1, characterized in that: The two slides (4) are slidably mounted on a slide groove (32) provided on the slide seat (3); a servo motor 2 (6) is fixedly mounted on the middle portion of the bottom end of the slide seat (3); an output shaft of the servo motor 2 (6) is fixedly connected to a screw rod (61) via a coupling; A connecting rod (42) is fixedly mounted in the middle of the bottom ends of the two slides (4), a nut (421) is fixedly mounted at the axis of the bottom ends of the connecting rods (42), and the nut (421) is threadedly connected to the screw rod (61).

4. A concrete maintenance device for construction according to claim 1, characterized in that: A water collecting box (46) is fixedly mounted on the bottom of the two slides (4) away from the axis thereof. The water collecting box (46) is located at the lower part of the atomizing nozzle (45). A water inlet (464) is provided on the top of the water collecting box (46) away from the sliding seat (3). A second hose (461) connected to the interior of the water collecting box (46) is mounted at the bottom of the water collecting box (46). The other end of the second hose (461) is connected to the water storage tank (2).

5. A concrete maintenance device for construction according to claim 4, characterized in that: A mounting frame (462) is fixedly installed in the water collection box (46), a filter screen (463) is installed on the mounting frame (462), and a rubber pad (47) is glued and installed on the fixing rod (41) close to the water collection box (46).

6. A concrete maintenance device for construction according to claim 5, characterized in that: Universal wheels (12) are symmetrically mounted in pairs at the four corners at the bottom of the frame (1), and a handle (8) is symmetrically mounted on the top of the frame (1) on a side away from the water collection box (46).

7. A concrete maintenance device for construction according to claim 2, characterized in that: The two handles (8) are respectively provided with a power switch 1 (81) and a power switch 2 (82); the power switch 2 (82) is arranged on the handle (8) on one side close to the locking assembly (7), and the power switch 1 (81) is arranged on the handle (8) on the other side.

8. The concrete maintenance device for construction according to claim 1, characterized in that: The water storage tank (2) is provided with a water supply port (221) on one side along the width direction thereof, and a sealing cover (22) is threadedly mounted on the water supply port (221).

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