Resource-saving device for engineering construction and method for using the same

Abstract

The application discloses a resource-saving device for engineering construction and a use method thereof, and belongs to the technical field of building resource recycling. The device comprises a conveying mechanism, the conveying mechanism comprises an operation table, a plurality of sliding grooves are arranged on the operation table, the sliding grooves are arranged perpendicularly to the length direction of the operation table, rotating shafts are arranged in the two ends of the sliding grooves, a friction roller is arranged at one end of the rotating shafts, the friction roller is located above the upper surface of the operation table, a worm wheel is arranged at the other end of the rotating shafts, the worm wheel is located below the lower surface of the operation table, sliding plates are symmetrically arranged below the operation table, the sliding plates are arranged in parallel to the length direction of the operation table, the rotating shafts are rotationally connected to the sliding plates, and the worm wheels are located below the sliding plates. The technical scheme is used to solve the problem that the plate recycling device in the prior art is difficult to convey plates with different lengths and widths, thereby causing inconvenience in use.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building resource recycling, and particularly relates to a resource-saving device for engineering construction and a use method thereof. BACKGROUND

[0002] In the process of building construction, boards are often used to increase the efficiency of building construction. However, in the process of building construction, boards are often used in combination with concrete, such as being used as a formwork for pouring concrete, which also causes concrete and the like to solidify on the boards after use, making it difficult to recycle the boards and causing resource waste in engineering construction. At present, most boards are handled by workers manually in the process of treatment, which consumes physical strength and is low in efficiency.

[0003] In the prior art, there are also devices for recycling boards, such as a waste board recycling device for building construction and a recycling method thereof with a patent number CN202210186286.1, which comprises a support seat, a polishing wheel is installed on the upper part of the support seat, two groups of polishing wheels are arranged on the polishing wheel in an upper and lower array, a feeding plate is movably installed at the front end of the support seat, a first multi-stage electric telescopic rod is arranged at the lower end of the feeding plate, and the two ends of the first multi-stage electric telescopic rod are movably installed on the bottom surface of the feeding plate and the side wall of the support seat, respectively.

[0004] The recycling device in the prior art described above can clean the concrete on the boards to a certain extent, but the structure of the part for conveying the boards is difficult to meet the conveying requirements of boards of different lengths and widths, which causes inconvenience in the construction process. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a resource-saving device for engineering construction and a use method thereof, which can solve the problem that the board recycling device in the prior art is difficult to convey boards of different lengths and widths, causing inconvenience in use.

[0006] To achieve the above purpose, the present application provides the following technical solutions:

[0007] The utility model discloses a resource conservation device for engineering construction, including conveying mechanism, conveying mechanism includes operation panel, be equipped with a plurality of sliding groove on the operation panel, the sliding groove is perpendicular to the length direction of operation panel and is arranged, both ends inside of sliding groove are equipped with the shaft, one end of a plurality of shaft is equipped with the friction roller, the friction roller is located operation panel's upper surface, one end of a plurality of shaft is equipped with the worm wheel, the worm wheel is located operation panel's lower surface below, the symmetric sliding plate of operation panel below is equipped with, the sliding plate is parallel to the length direction of operation panel and is arranged, and a plurality of shaft are all rotatably connected on the sliding plate, the worm wheel is located the lower of sliding plate, be equipped with the rotating lever on the sliding plate, the both ends of rotating lever rotatably connect the both ends on the sliding plate, one end on the rotating lever is equipped with the drive motor, the drive motor is fixed on the sliding plate, be equipped with the worm wheel corresponding with the number and position of worm wheel on the rotating lever, the worm wheel is sleeved and is fixed on the rotating lever, both the sliding plate are equipped with the connecting lug, the connecting lug is equipped with the drive nut, the inside of drive nut is equipped with the drive screw, the drive nut is screwed on the drive screw, and both ends of drive screw rotatably connect the both sides on the width direction of operation panel.

[0008] Further, the cleaning mechanism is arranged on the tail end of the driving mechanism, the cleaning mechanism includes two C-shaped plates, the C-shaped plates are fixed on the end of the operation table, and the opening ends of the two C-shaped plates are oppositely arranged, the inside of the C-shaped plate is provided with a rotating roller, the both ends of the rotating roller are rotatably connected to the C-shaped plate respectively, and the rotating part of the rotating roller is provided with a torsion spring, the both ends of the rotating roller are mirror-imaged provided with a guide groove on the outer side, the guide groove is provided with an L-shaped rod, one end of the L-shaped rod is located in the guide groove, the other end of the L-shaped rod is arranged outside the both sides of the C-shaped plate, two steel wires are parallel arranged between the two C-shaped plates, the both ends of the two steel wires are fixed on the outer side of the part of the L-shaped rod between the two C-shaped plates, the middle part of the rotating roller is provided with a blocking rod, one end of the blocking rod is connected to the rotating roller, the other end of the blocking rod points to the middle part of the operation table, when the blocking rod is rotated to the limit position by the end of the plate, the two steel wires are in contact with the upper surface and the lower surface of the plate respectively.

[0009] Further, the rotating roller is provided with a fixed block, one end of the fixed block is fixed to the middle part of the rotating roller, one end of the blocking rod is provided with a rotating plate, the rotating plate is provided with a locking bolt, the locking bolt connects the rotating plate to the fixed block.

[0010] Further, the blocking rod includes an inner rod and an outer rod, the inner rod and the outer rod are screw-connected, and the end of the inner rod is fixedly connected with the rotating plate.

[0011] Further, the C-shaped plate is provided with adjusting bolts on both sides, the adjusting bolts are threadedly connected to the C-shaped plate, the adjusting bolts are provided with pressing plates on one end of the steel wire rope, and the pressing plates abut against the steel wire rope.

[0012] Further, the adjusting bolts are provided with pressing springs on the end portions, one end of the pressing spring is fixed to the pressing plate, and the other end of the pressing spring is fixed to the end portion of the adjusting bolt.

[0013] Further, the driving screw rod is provided with a rotating disc on one end portion.

[0014] Further, the middle portion of the friction roller is provided with an annular clamping groove, and the outer side of both ends of the annular clamping groove is provided with a guide inclined surface.

[0015] Further, the operation table is provided with supporting legs at four corners, and one end of the supporting leg is fixed to the operation table.

[0016] A use method of a resource saving device for engineering construction comprises the following steps:

[0017] The driving screw rod is rotated to adjust the relative positions of the two friction rollers, so that the distance between the two friction rollers matches the width of the plate;

[0018] The outer rod is rotated to adjust the relative position of the outer rod relative to the inner rod, thereby adjusting the length of the stop rod, so that the distance between the two symmetrically arranged stop rods is less than the width of the plate;

[0019] The locking bolt is adjusted to adjust the inclination angle of the stop rod connected to the rotating roller, thereby adjusting the movement distance of the L-shaped rod in the guide groove when the plate pushes the stop rod to rotate to the limit position, so that the steel wire rope is in close contact with the two surfaces of the plate;

[0020] The plate is placed in the friction roller at the end of the operation table, and the friction roller can drive the plate to move into the cleaning mechanism to clean the concrete on the plate.

[0021] The beneficial effects of the present application are:

[0022] (1) The conveying mechanism in the technical solution can convey plates of different lengths and widths, improving the convenience and versatility of the plate recycling device;

[0023] (2) The cleaning mechanism in the technical solution can clean concrete from plates of different thicknesses and widths, and the steel wire rope can clean concrete from the surface of the plate without damaging the surface of the plate, improving the recycling effect of the plate in construction engineering, and achieving the purpose of saving plate resources in construction engineering.

[0024] Additional advantages, objects, and features of the application will be set forth in part by the description that follows, and in part will become apparent to those skilled in the art upon examination of the following or can be learned from practice of the application. The objectives and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] To make the objectives, technical solutions and beneficial effects of the present application clearer, the present application is described below with the help of the following drawings:

[0026] Figure 1 It is a perspective view of the resource saving device of the present application;

[0027] Figure 2 It is a perspective view of the resource saving device of the present application from another angle;

[0028] Figure 3 It is a perspective view of the conveying mechanism of the present application;

[0029] Figure 4 It is a perspective view of the conveying mechanism of the present application from another angle;

[0030] Figure 5 It is a perspective view of the cleaning mechanism of the present application;

[0031] Figure 6 It is a perspective view of the cleaning mechanism of the present application; Figure 5 It is a partial enlarged view of A in the present application.

[0032] In the drawings, the following signs are marked:

[0033] 1, operation table; 2, sliding groove; 3, friction roller; 4, sliding plate; 5, rotating shaft; 6, worm gear; 7, rotating rod; 8, worm; 9, driving motor; 10, sliding rail; 11, connecting lug; 12, driving nut; 13, driving screw; 14, rotating disc; 15, C-shaped plate; 16, rotating roller; 17, guide groove; 18, L-shaped rod; 19, fixed block; 20, rotating plate; 21, outer rod; 22, inner rod; 23, steel wire rope; 24, pressing plate; 25, adjusting bolt; 26, limiting plate; 27, supporting leg; 28, plate. DETAILED DESCRIPTION

[0034] As Figures 1-6The application is a resource saving device for engineering construction, which comprises a conveying mechanism. The conveying mechanism comprises an operating table 1, which can be understood as a steel panel. A plurality of sliding grooves 2 are arranged on the operating table 1 and are perpendicular to the length direction of the operating table 1. A rotating shaft 5 is arranged at each end of the sliding groove 2. A friction roller 3 is arranged at one end of each rotating shaft 5 and is located above the upper surface of the operating table 1. A worm gear 6 is arranged at the other end of each rotating shaft 5 and is located below the lower surface of the operating table 1. A sliding plate 4 is symmetrically arranged below the operating table 1 and is parallel to the length direction of the operating table 1. Specifically, a slide rail 10 is arranged on the lower surface of the operating table 1. A groove is arranged on the sliding plate 4 and is connected with the slide rail 10 in a sliding manner. It can be understood that the sliding plate 4 can only slide on the slide rail 10. Meanwhile, each rotating shaft 5 is rotatably connected to the sliding plate 4. The worm gear 6 is located below the sliding plate 4. A rotating rod 7 is arranged on the sliding plate 4 and is rotatably connected to both ends of the sliding plate 4. A driving motor 9 is arranged at one end of the rotating rod 7 and is fixed to the sliding plate 4. The worm gear 6 corresponding in number and position is arranged on the rotating rod 7 and is fixed to the rotating rod 7 in a sleeving manner. A connecting lug 11 is arranged on each of the two sliding plates 4. A driving nut 12 is arranged on the connecting lug 11. A driving screw 13 is arranged in the driving nut 12 and is threadedly connected to the driving nut 12. Both ends of the driving screw 13 are rotatably connected to the two sides of the operating table 1 in the width direction. The driving nut 12 and the driving nut 12 can be referred to the screw nut for the arrangement mode.

[0035] It should be noted that the driving screw 13 and the driving nut 12 have self-locking property. Therefore, when the driving screw 13 rotates, the driving nut 12 is moved to a specified position, and the position of the sliding plate 4 is relatively fixed and will not move. In this embodiment, it can be understood that the two driving nuts 12 should move towards or away from each other when the driving screw 13 rotates. The arrangement mode of such movement is the prior art, which will not be described in detail (for example, two segments of threads with different rotations are arranged on the driving screw 13).

[0036] The working principle of the above technical scheme is as follows:

[0037] By rotating the driving screw 13, the movement of the driving nut 12 is driven, the movement of the driving nut 12 will drive the sliding plate 4 to move in the width direction of the operation table 1, the movement of the sliding plate 4 will drive the rotating shaft 5, the friction roller 3 and the rotating driving motor 9 arranged thereon to move, thereby adjusting the relative position of the friction rollers 3 symmetrically arranged on both sides of the operation table 1, that is, changing the distance between the symmetrically arranged friction rollers 3, so as to adapt to the conveying of different width plates 28, at the same time, the rotation of the driving motor 9 will drive the rotating rod 7 to rotate, that is, the worm 8 rotates, that is, the worm 8 drives the worm wheel 6 to rotate, and then drives the friction roller 3 on the rotating shaft 5 to rotate, thereby realizing the transportation of the plate 28.

[0038] The advantage of this arrangement is that through the arrangement of the worm wheel 6 and the worm 8, one driving motor 9 can control the rotation of all the friction rollers 3 on the same side, that is, the rotation of several friction rollers 3 on the same side is unified, which improves the conveying effect and reduces the number of driving elements used in the device; at the same time, the arrangement of the sliding plate 4, the driving screw 13 and the driving nut 12 makes the position adjustment of several friction rollers 3 on the same side unified, which improves the adjustment rate and sets the structure for adjusting the position of the friction roller 3 on the lower surface of the operation table 1, that is, saves the installation space of the device and reduces the overall volume; moreover, through this arrangement, different width plates 28 can be conveyed, which greatly improves the practicality of the device.

[0039] In an implementable mode, the cleaning mechanism is further arranged on the tail end of the driving mechanism, the cleaning mechanism comprises two C-shaped plates 15 fixed on the end of the operating table 1, and the opening ends of the two C-shaped plates 15 are oppositely arranged, the inside of the C-shaped plate 15 is provided with a rotating roller 16, the two ends of the rotating roller 16 are respectively rotatably connected to the C-shaped plate 15, and a torsional spring is arranged on the rotating part of the rotating roller 16, the purpose of the torsional spring (not shown) is to automatically reset when the rotating roller 16 loses external force, the outer side of the two end portions of the rotating roller 16 is mirror-imaged provided with a guide groove 17, the guide groove 17 is an arc-shaped groove, and an L-shaped rod 18 is arranged in the guide groove 17, one end of the L-shaped rod 18 is located in the guide groove 17, the other end of the L-shaped rod 18 penetrates out of the side of the C-shaped plate 15 and is slidably connected to the C-shaped plate 15, and preferably, a limiting plate 26 is arranged on the penetrating end of the L-shaped rod 18, two steel wires 23 (the diameter can be arranged according to the actual situation) are arranged in parallel between the two C-shaped plates 15, the two ends of the two steel wires 23 are respectively fixed to the upper symmetrically arranged L-shaped rods 18 and the lower symmetrically arranged L-shaped rods 18, a blocking rod is arranged in the middle of the rotating roller 16, one end of the blocking rod is connected to the rotating roller 16, and the other end of the blocking rod is arranged to point to the middle of the operating table 1, when the blocking rod is rotated to the limit position by the end of the plate 28, the limit position here refers to that the end of the blocking rod is in contact with the side of the plate 28, and the two steel wires 23 are in contact with the upper surface and the lower surface of the plate 28 respectively.

[0040] The working principle of the above technical solution is as follows:

[0041] When the plate 28 is conveyed by the friction roller 3, the end portion of the plate 28 will be in contact with the blocking rod, thereby pushing the blocking rod to rotate, and the blocking rod will drive the rotating roller 16 to rotate at the same time, that is, when the rotating roller 16 rotates, the guide groove 17 arranged thereon will also rotate, the rotation of the guide groove 17 will make the end portion of the L-shaped rod 18 move in the guide groove 17 to the middle of the rotating roller 16, so that the L-shaped rod 18 will slide on the C-shaped plate 15, thereby driving the steel wire 23 to move to the middle of the rotating roller 16, that is, when the blocking rod rotates to be in contact with the side of the plate 28, the plate 28 cannot push the blocking rod at this time, that is, the blocking rod has been rotated to the limit position at this time, that is, the steel wire 23 just moves to the surface of the plate 28 to be in contact at this time, and thereby in the movement process of the plate 28, the steel wire 23 will be in contact with and cut the concrete on the plate 28, thereby cleaning the concrete on the surface of the plate 28.

[0042] By the contact between the steel wire 23 and the concrete, the concrete on the plate 28 is blocked, thereby separating from the surface of the plate 28, and this mode will not damage the surface of the plate 28, compared with the cleaning mode of the existing technology through the scraper (which will cause cutting damage to the surface of the plate 28) or through the polishing wheel arranged by extrusion (which will cause extrusion depression on the surface of the plate 28).

[0043] In an implementable mode, the rotating roller 16 is provided with a fixed block 19, one end of the fixed block 19 is fixed to the middle part of the rotating roller 16, one end of the stop rod is provided with a rotating plate 20, the rotating plate 20 is provided with a locking bolt, the locking bolt connects the rotating plate 20 to the fixed block 19, by loosening the locking bolt, the rotating plate 20 can be rotated, and then the inclination angle of the stop rod is adjusted, that is, the rotation angle of the plate 28 end pushing the stop rod to rotate to the limit position is adjusted, and then the rotation angle of the rotating roller 16 is controlled, and then the rotation angle of the guide groove 17 is controlled, and then the moving distance of the L-shaped rod 18 is controlled, and then the moving distance of the steel wire rope 23 is controlled, and then the distance between the two steel wire ropes 23 is controlled, and then the steel wire rope 23 can act on the plate 28 with different thicknesses, and then the concrete cleaning operation can be performed on the plate 28 with different thicknesses.

[0044] In an implementable mode, the stop rod includes an inner rod 22 and an outer rod 21, the inner rod 22 and the outer rod 21 are threadedly connected, and the end of the inner rod 22 is fixedly connected with the rotating plate 20, that is, the stop rod is provided in a length-adjustable mode, the distance between the end of the stop rod and the middle part of the operation table 1 can be controlled, and the stop rod can be adapted to plates 28 with different widths, so that the end of the plate 28 with different widths can drive the stop rod to rotate.

[0045] In an implementable mode, the two side surfaces of the C-shaped plate 15 are provided with adjusting bolts 25, the adjusting bolts 25 are threadedly connected to the C-shaped plate 15, one end of the adjusting bolt 25 towards the steel wire rope 23 is provided with a pressing plate 24, the pressing plate 24 abuts against the steel wire rope 23, by rotating the adjusting bolt 25, the pressure of the pressing plate 24 acting on the steel wire rope 23 can be controlled, and then the pressure of the steel wire rope 23 contacting the surface of the plate 28 can be controlled, and then the pressure of the steel wire rope 23 on the surface of the plate 28 can be adjusted according to the actual situation during the operation of the device, and then the cleaning effect of the steel wire rope 23 on the surface of the plate 28 is adjusted.

[0046] In an implementable mode, the end of the adjusting bolt 25 is provided with a pressing spring, one end of the pressing spring is fixed to the pressing plate 24, and the other end of the pressing spring is fixed to the end of the adjusting bolt 25, the pressing spring is provided, when the steel wire rope 23 contacts the stubborn concrete (firm contact surface, not easy to fall off) on the plate 28, the steel wire rope 23 can overcome the resistance of the pressing spring, the pressing spring is deformed, and then the steel wire rope 23 moves away from the middle part of the rotating roller 16 along the surface of the stubborn concrete, and the obstacle is overcome, this arrangement can avoid the steel wire rope 23 from being blocked and broken, and can also avoid the problem that the friction force of the friction roller 3 is difficult to drive the plate 28 to move due to the blocking of the steel wire rope 23.

[0047] In an implementable mode, the driving screw 13 is provided with a rotating disc 14 at one end, which is convenient for the operator to rotate and adjust.

[0048] In an implementable mode, the middle part of the friction roller 3 is provided with an annular clamping groove, and the outer side of the two ends of the annular clamping groove is provided with a guide slope, which can limit and guide the two sides of the plate 28, and improve the conveying effect. At the same time, it is not difficult to understand that the support legs 27 are arranged at the four corners of the operation table 1, and one end of the support legs 27 is fixed to the operation table 1.

[0049] A method for using a resource-saving device for engineering construction, comprising the following steps:

[0050] The driving screw 13 is rotated to adjust the relative positions of the two friction rollers 3, so that the distance between the two friction rollers 3 matches the width of the plate 28.

[0051] The outer rod 21 is rotated to adjust the relative position of the outer rod 21 relative to the inner rod 22, and then the length of the stop rod is adjusted, so that the distance between the two symmetrically arranged stop rods is less than the width of the plate 28.

[0052] The locking bolt is adjusted to adjust the inclination angle of the stop rod connected to the rotating roller 16, and then the moving distance of the L-shaped rod 18 in the guide groove 17 when the plate 28 pushes the stop rod to rotate to the limit position is adjusted, so that the steel wire rope 23 is in close contact with the two surfaces of the plate 28.

[0053] The plate 28 is placed in the friction roller 3 at the end of the operation table 1, and the friction roller 3 can drive the plate 28 to move into the cleaning mechanism to clean the concrete on the plate 28.

[0054] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and detail without departing from the scope defined by the claims of the present application.

Claims

1. A resource-saving device for engineering construction, characterized in that: The system includes a conveying mechanism, which includes an operating table (1). The operating table (1) has several sliding grooves (2) that are perpendicular to the length of the operating table (1). Each end of one of the sliding grooves (2) has a rotating shaft (5). One end of each rotating shaft (5) has a friction roller (3) located above the upper surface of the operating table (1). The other end of each rotating shaft (5) has a worm gear (6) located below the lower surface of the operating table (1). A sliding plate (4) is symmetrically arranged below the operating table (1) and is parallel to the length of the operating table (1). Each rotating shaft (5) is rotatably connected to the sliding plate (4), and the worm gear (6) is located below the sliding plate (4). In this case, a rotating rod (7) is provided on the sliding plate (4), and the two ends of the rotating rod (7) are rotatably connected to the two ends of the sliding plate (4). A drive motor (9) is provided on one end of the rotating rod (7), and the drive motor (9) is fixed on the sliding plate (4). A worm wheel (6) is provided on the rotating rod (7) corresponding to the number and position of the worm wheel (6). The worm wheel (6) is sleeved and fixed on the rotating rod (7). Both sliding plates (4) are provided with connecting ears (11), and each connecting ear (11) is provided with a drive nut (12). The drive nut (12) is provided with a drive screw (13) inside. The drive nut (12) is threadedly connected to the drive screw (13). The two ends of the drive screw (13) are rotatably connected to the two sides of the operating table (1) in the width direction. It also includes a cleaning mechanism located at the tail end of the drive mechanism. The cleaning mechanism includes two C-shaped plates (15), which are fixed to the end of the operating table (1). The open ends of the two C-shaped plates (15) are arranged opposite each other. A rotating roller (16) is provided inside the C-shaped plate (15). The two ends of the rotating roller (16) are rotatably connected to the C-shaped plate (15). A torsion spring is provided on the rotating part of the rotating roller (16). Guide grooves (17) are mirrored on the outer surfaces of both ends of the rotating roller (16). An L-shaped rod (18) is provided in each guide groove (17). One end of the L-shaped rod (18) is located in the guide groove. (17) Inside, the other end of the L-shaped rod (18) extends through both sides of the C-shaped plate (15). Two steel wire ropes (23) are arranged parallel between the two C-shaped plates (15). The two ends of the two steel wire ropes (23) are respectively fixed to the outer surface of the part of the L-shaped rod (18) located between the C-shaped plates (15). A stop bar is provided in the middle of the rotating roller (16). One end of the stop bar is connected to the rotating roller (16), and the other end of the stop bar is set towards the middle of the operating table (1). When the stop bar is pushed and rotated to the limit position by the end of the plate (28), the two steel wire ropes (23) contact the upper and lower surfaces of the plate (28) respectively.

2. The resource-saving device for engineering construction according to claim 1, characterized in that: The rotating roller (16) is provided with a fixing block (19), one end of the fixing block (19) is fixed to the middle of the rotating roller (16), and a rotating plate (20) is provided on one end of the stop rod. A locking bolt is provided on the rotating plate (20), and the locking bolt connects the rotating plate (20) to the fixing block (19).

3. The resource-saving device for engineering construction according to claim 2, characterized in that: The stop bar includes an inner rod (22) and an outer rod (21), which are threaded together. The end of the inner rod (22) is fixedly connected to the rotating plate (20).

4. A resource-saving device for engineering construction according to claim 1, characterized in that: Adjusting bolts (25) are provided on both sides of the C-shaped plate (15). The adjusting bolts (25) are threaded onto the C-shaped plate (15). A pressure plate (24) is provided on one end of the adjusting bolt (25) facing the wire rope (23). The pressure plate (24) acts against the wire rope (23).

5. A resource-saving device for engineering construction according to claim 4, characterized in that: A compression spring is provided on the end of the adjusting bolt (25). One end of the compression spring is fixed to the pressure plate (24), and the other end of the compression spring is fixed to the end of the adjusting bolt (25).

6. A resource-saving device for engineering construction according to claim 1, characterized in that: A rotating disk (14) is provided on one end of the drive screw (13).

7. A resource-saving device for engineering construction according to claim 1, characterized in that: The friction roller (3) has an annular groove in the middle and guide slopes on the outer sides of both ends of the annular groove.

8. A resource-saving device for engineering construction according to claim 1, characterized in that: The operating table (1) is provided with support legs (27) at the four corners, and one end of the support leg (27) is fixed on the operating table (1).

9. A method of using a resource-saving device for engineering construction according to any one of claims 1-8, characterized in that: Includes the following steps: Rotate the drive screw (13) to adjust the relative position of the two friction rollers (3) so that the distance between the two friction rollers (3) matches the width of the plate (28); Rotate the outer rod (21) to adjust the relative position of the outer rod (21) with respect to the inner rod (22), thereby adjusting the length of the stop rod so that the distance between the two symmetrically arranged stop rods is less than the width of the plate (28); Adjust the locking bolt, adjust the tilt angle of the stop rod connected to the rotating roller (16), and then adjust the moving distance of the L-shaped rod (18) in the guide groove (17) when the plate (28) pushes the stop rod to the limit position, so that the wire rope (23) and the two surfaces of the plate (28) are in close contact; Place the board (28) inside the friction roller (3) at the end of the operating table (1), and the friction roller (3) will drive the board (28) to move into the cleaning mechanism to clean the concrete on the board (28).

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