Device for leveling building ground

Abstract

The invention provides a building ground leveling device. The building ground leveling device comprises a push-pull rod; the telescopic frame is mounted below the push-pull rod, and a soft scraping strip is arranged below the telescopic frame; a positioning mechanism capable of positioning the telescopic frame and the soft scraping strip is mounted on the telescopic frame; the winding and unwinding mechanism is installed on one side of the telescopic frame, and the winding and unwinding mechanism is connected with the soft scraping strip so as to adjust the length of the soft scraping strip below the telescopic frame; and the washing mechanism is arranged in the winding and unwinding mechanism so as to wash and clean the soft scraping strip wound into the winding and unwinding mechanism. By adopting the telescopic design of the soft scraping strip and the telescopic frame and the winding and unwinding mechanism, the length of the soft scraping strip below the telescopic frame is adjusted by the winding and unwinding mechanism when the telescopic adjustment of the telescopic frame is carried out and the overall length is changed, so that the cement leveling device can be suitable for the leveling operation of cement on construction surfaces with different widths.

Description

Technical Field

[0001] The invention relates to the field of building floor scraping, in particular to a building floor scraping device. Background Art

[0002] During construction, cement is usually laid on the ground; after laying the cement, scraping operations are required to make the ground smooth.

[0003] For example, in the existing patent document "CN221194159U, a leveling device for building mortar floors", a rod body and a base plate are provided, and a first slide groove is opened on the base plate, and structures such as a pulley groove, a mounting shaft, and a pulley body are provided in the first slide groove. When leveling the cement mortar floor, the rib strip is connected to the first slide groove, so that the pulley body and the top of the rib strip are in contact with each other, and then the construction personnel hold the rod body and push the base plate to move on the rib strip, so that the scraper can level the cement mortar floor. In the above-mentioned prior art, a scraper is used for the leveling operation, and the length of the scraper is fixed. However, the width and length of the construction surface where cement needs to be laid in the construction are different. The scraper with a fixed length cannot be used for the leveling operation of different construction surfaces; further, after the leveling operation, cement will adhere to the scraper, and it needs to be manually cleaned, which increases the labor intensity of the workers. Summary of the invention

[0004] The invention provides a device for scraping and leveling a building floor in order to solve the technical problem that the length of a scraper is insufficiently adjusted.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a device for scraping a building floor, comprising a push-pull rod; further comprising: a telescopic frame, the telescopic frame is installed below the push-pull rod, and a soft scraping strip is arranged below the telescopic frame; a positioning mechanism is installed on the telescopic frame and can provide positioning for the telescopic frame and the soft scraping strip; a reeling and unreeling mechanism, the reeling and unreeling mechanism is installed on one side of the telescopic frame, the reeling and unreeling mechanism is connected to the soft scraping strip to adjust the length of the soft scraping strip below the telescopic frame; and a flushing mechanism is arranged in the reeling and unreeling mechanism to flush and clean the soft scraping strip received in the reeling and unreeling mechanism.

[0007] In the technical solution, by adopting a soft scraper, a reeling and winding mechanism and a telescopic frame, the length of the soft scraper used for leveling can be adjusted under the telescopic frame, so that leveling operations can be achieved on construction surfaces of different widths.

[0008] Preferably, the telescopic frame comprises a first frame body, a second frame body and an insertion strip; the first frame body is provided with a long slot along the length direction, the insertion strip is inserted from the open end of the long slot, and the insertion strip and the long slot are gap-matched, and one end of the insertion strip outside the long slot is fixedly connected to the second frame body.

[0009] In the technical solution, the telescopic adjustment of the telescopic frame is achieved by adjusting the length of the insert extending from the long slot.

[0010] Preferably, the positioning mechanism includes a fixing nut, a pressure plate and a screw; the fixing nut is fixed to the top surface of the first frame body close to the second frame body, and the fixing nut is connected to the long slot, the screw rod is threadedly connected to the fixing nut, the top end of the screw rod is fixed with a pressure plate, the bottom end of the screw rod is provided with a concave hole, the concave hole is gap-fittingly connected with a pressure seat, the part of the pressure seat extending from the concave hole contacts with the top surface of the insert located in the long slot, and a second spring is arranged in the concave hole.

[0011] In this technical solution, the positioning of the telescopic frame is achieved by tightening the screw.

[0012] Preferably, the positioning mechanism also includes a disk body, a U-shaped rod, a connecting rod, a bent rod and a first spring; the disk body is located between the pressure plate and the fixing nut, and a circular hole is provided on the disk body, the screw rod passes through the circular hole, and the diameter of the circular hole is equal to the diameter of the screw rod; the disk body is fixedly connected to the U-shaped rod, the bottom end of the U-shaped rod extends to the bottom of the first frame, and the bottom end of the U-shaped rod is fixedly connected to the connecting rod, the bottom end of the connecting rod is fixedly connected to the bent rod, the bent rod is inserted into a strip groove provided on the soft scraper strip, and a plurality of positioning grooves are provided at equal intervals below the strip groove; the U-shaped rod is fixedly connected to at least one first spring, and the bottom end of the first spring is in contact with the top surface of the first frame.

[0013] In the technical solution, the positioning of the soft scraper strip after adjustment is achieved by embedding the bent rod into the positioning groove.

[0014] Preferably, the rewinding and unwinding mechanism includes a lower cover, an upper shell, a first roller body, a bevel gear and a twisting rod; the lower cover is fixed to a side of the first frame away from the second frame, and the bottom of the lower cover is open, the top of the lower cover is fixed to the upper shell, the first roller body is rotatably installed in the lower cover, the part of the soft scraper strip located in the lower cover is wound around the first roller body, a side wall of the lower cover is provided with a guide groove, the guide groove passes through the side wall of the first frame, the soft scraper strip passes through the guide groove, the top of the first roller body extends into the upper shell, and a twisting rod is rotatably installed on one side wall of the upper shell, the part of the twisting rod located in the upper shell and the top of the first roller body are fixedly sleeved with a bevel gear, and the two bevel gears are meshingly connected.

[0015] In the technical solution, the reeling and unreeling mechanism is used for reeling and unreeling the soft scraper strip.

[0016] Preferably, it also includes a rope retracting assembly; the rope retracting assembly includes a fixed cover fixedly mounted to one side of the second frame; a second roller body and a guide roller are rotatably mounted in the fixed cover, a pull rope is wound around the second roller body, and clockwork springs are provided at both ends of the second roller body, the two ends of the clockwork spring are respectively fixedly connected to the second roller body and the inner wall of the fixed cover, the pull rope passes around the guide roller, a through hole connected to the fixed cover is opened on one side of the second frame, the pull rope passes through the through hole, and the pull rope is fixedly connected to one end of the soft scraper strip.

[0017] In the technical solution, the retractable rope assembly is used to retract the pull rope, and is used to replace the soft scraper by the pull rope when cleaning after the soft scraper completely leaves the telescopic frame.

[0018] Preferably, the flushing mechanism includes a connecting pipe, a tee pipe, a water inlet joint and a flushing nozzle; the tee pipe is fixedly connected to the lower cover, and one port of the tee pipe is connected to the water inlet joint located outside the lower cover, and the other two ports of the tee pipe are connected to connecting pipes, and a flushing nozzle is installed at one end of the connecting pipe away from the tee pipe, and the flushing nozzle faces the soft scraper strip.

[0019] In the technical solution, the flushing mechanism is used to flush and clean the soft scraper strip.

[0020] Preferably, it also includes a height adjusting mechanism, the number of which is two, and the two height adjusting mechanisms are respectively connected to the side wall of the lower cover and the side wall of the fixed cover; the height adjusting mechanism includes a cylinder, a connecting column, a positioning socket, a guide sleeve, an insertion rod and a third spring; the connecting column is connected with the inner wall of the cylinder by clearance fitting, the top side wall of the cylinder is fixedly connected with a guide sleeve, and the guide sleeve is connected to the cylinder, the insertion rod is connected with the guide sleeve by clearance fitting, the connecting column is provided with a plurality of positioning sockets distributed at equal intervals along the length direction, the insertion rod is provided with a third spring, and the insertion rod is elastically connected to the guide sleeve through the third spring.

[0021] In the technical solution, the height adjustment mechanism is used to adjust the height and change the height of the soft scraper.

[0022] Preferably, a sliding block is fixedly connected to the bottom of the cylinder, and the sliding block is slidably connected to a guide rail.

[0023] In this technical solution, the guide rail and the slider provide guidance during the scraping process.

[0024] Preferably, the push-pull rod comprises a rod body, a connecting plate and a hinge column; the bottom end of the rod body is hinged to the connecting plate through the hinge column, and the connecting plate is fixedly connected to the top surface of the first frame.

[0025] In the present technical solution, the push-pull rod is used to push the telescopic frame to move the entire device, and the push-pull rod is in a high position to facilitate manual operation.

[0026] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0027] The positive and progressive effects of the present invention are:

[0028] The above-mentioned device for scraping and leveling the construction floor adopts a soft scraping strip, a telescopic design of a telescopic frame, and a retracting and unreeling mechanism. When the telescopic frame is telescopically adjusted to change the overall length, the retracting and unreeling mechanism adjusts the length of the soft scraping strip under the telescopic frame. It can be suitable for scraping and leveling operations of cement on construction surfaces of different widths; further, through the setting of a flushing mechanism, after the scraping and leveling operation, the retracting and unreeling mechanism drives the soft scraping strip to move to the flushing mechanism to achieve flushing and cleaning, without the need for manual cleaning; further, a positioning mechanism is provided, which can perform synchronous positioning of the telescopic frame and the soft scraping strip after adjustment. The positioning of the telescopic frame and the soft scraping strip can be achieved by operating a single positioning mechanism. 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 structural schematic diagram of the height adjustment mechanism of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the reeling and unreeling mechanism of the present invention.

[0032] Figure 4 It is a top view of the internal structure of the lower cover of the present invention.

[0033] Figure 5 It is a structural schematic diagram of the positioning mechanism of the present invention.

[0034] Figure 6 It is a schematic diagram of the structure inside the fixing nut of the present invention.

[0035] Figure 7 It is a structural schematic diagram of the retractable rope assembly of the present invention.

[0036] Figure 8 It is a schematic diagram of the installation structure of the second roller body of the present invention.

[0037] Description of Reference Numerals

[0038] 1. telescopic frame; 101. first frame; 102. second frame; 1021. through hole; 103. insert;

[0039] 2. soft scraper strip; 201. strip groove; 202. positioning groove;

[0040] 3. Positioning mechanism; 301. Fixing nut; 302. Pressure plate; 303. Screw rod; 304. Plate body; 3041. Round hole; 305. U-shaped rod; 306. Connecting rod; 307. Bent rod; 308. First spring; 309. Concave hole; 310. Second spring; 311. Pressure seat;

[0041] 4. Rewinding and unwinding mechanism; 401. lower cover; 402. upper shell; 403. first roller body; 404. bevel gear; 405. twisting rod;

[0042] 5. Rope retracting and releasing assembly; 501. fixed cover; 502. second roller body; 503. guide roller; 504. pull rope; 505. spring;

[0043] 6. Height adjustment mechanism; 601. Cylinder; 602. Connecting column; 603. Positioning socket; 604. Guide sleeve; 605. Insertion rod; 606. Third spring;

[0044] 7. Slider;

[0045] 8. Push-pull rod; 801. rod body; 802. connecting plate; 803. hinged column;

[0046] 9. Guide groove;

[0047] 10. Flushing mechanism; 1001. Connecting pipe; 1002. Three-way pipe; 1003. Water inlet joint; 1004. Flushing nozzle;

[0048] a. Guide rail. DETAILED DESCRIPTION

[0049] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0050] like Figure 1-8 As shown, the device for scraping the building floor includes a push-pull rod 8; it also includes: a telescopic frame 1, the telescopic frame 1 is installed below the push-pull rod 8, and a soft scraper strip 2 is arranged below the telescopic frame 1; a positioning mechanism 3 is installed on the telescopic frame 1 to provide positioning for the telescopic frame 1 and the soft scraper strip 2; a reeling mechanism 4, the reeling mechanism 4 is installed to one side of the telescopic frame 1, the reeling mechanism 4 is connected to the soft scraper strip 2 to adjust the length of the soft scraper strip 2 below the telescopic frame 1; a flushing mechanism 10, the flushing mechanism 10 is arranged in the reeling mechanism 4 to flush and clean the soft scraper strip 2 received in the reeling mechanism 4.

[0051] like Figure 1As shown, the telescopic frame 1 includes a first frame body 101, a second frame body 102 and an insertion strip 103; the first frame body 101 is provided with a long slot along the length direction, the insertion strip 103 is inserted from the open end of the long slot, and the insertion strip 103 is loosely matched with the long slot, and the end of the insertion strip 103 outside the long slot is fixedly connected to the second frame body 102.

[0052] After the positioning of the positioning mechanism 3 is released, the second frame 102 is moved to make the inserting bar 103 slide in the long slot, and the amount of the inserting bar 103 extending from the long slot is changed to achieve telescopic adjustment of the telescopic frame 1.

[0053] like Figure 3-4 As shown, the rewinding and unwinding mechanism 4 includes a lower cover 401, an upper shell 402, a first roller body 403, a bevel gear 404 and a twisting rod 405; the lower cover 401 is fixed to the side of the first frame 101 away from the second frame 102, and the bottom of the lower cover 401 is open, the top of the lower cover 401 is fixed to the upper shell 402, the first roller body 403 is rotatably installed in the lower cover 401, and the part of the soft scraper strip 2 located in the lower cover 401 is wound around the first roller body 404. 03, a guide groove 9 is opened on one side wall of the lower cover 401, and the guide groove 9 passes through the side wall of the first frame 101, and the soft scraper strip 2 passes through the guide groove 9, the top of the first roller body 403 extends into the upper shell 402, and a twisting rod 405 is rotatably installed on one side wall of the upper shell 402, and the part of the twisting rod 405 located in the upper shell 402 and the top of the first roller body 403 are fixedly sleeved with a bevel gear 404, and the two bevel gears 404 are meshingly connected.

[0054] During the telescopic adjustment process of the telescopic frame 1, when the second frame 102 moves away from the first frame 101, the second frame 102 pulls one end of the soft scraper strip 2 to unwind the soft scraper strip 2 from the first roller 403, thereby increasing the length of the soft scraper strip 2 below the telescopic frame 1. When unwinding, the soft scraper strip 2 is loose, and the rod 405 can be rotated to straighten the soft scraper strip 2.

[0055] When the second frame 102 approaches the first frame 101, one staff member moves the second frame 102, and another staff member rotates the twisting rod 405, and through the meshing transmission of the two bevel gears 404, the first roller 403 reels the soft scraper strip 2 to make the scraper strip straight.

[0056] After adjustment, positioning is performed by the positioning mechanism 3 .

[0057] like Figure 5-6As shown, the positioning mechanism 3 includes a fixing nut 301, a pressure plate 302 and a screw rod 303; the fixing nut 301 is fixed to the top surface of the first frame 101 close to the second frame 102, and the fixing nut 301 is connected to the long slot, the screw rod 303 is threadedly connected to the fixing nut 301, the top of the screw rod 303 is fixed with the pressure plate 302, the bottom of the screw rod 303 is provided with a concave hole 309, the concave hole 309 is connected with a pressure seat 311 with clearance fit, the part of the pressure seat 311 extending from the concave hole 309 contacts the top surface of the insert 103 located in the long slot, and a second spring 310 is arranged in the concave hole 309; the positioning mechanism 3 also includes a disk 304, a U-shaped rod 305, a connecting rod 306, a bent rod 307 and a first spring 308; The disk body 304 is located between the pressure plate 302 and the fixing nut 301, and a circular hole 3041 is opened on the disk body 304, and the screw rod 303 passes through the circular hole 3041, and the diameter of the circular hole 3041 is equal to the diameter of the screw rod 303; the disk body 304 is fixedly connected with a U-shaped rod 305, and the bottom end of the U-shaped rod 305 extends to the bottom of the first frame 101, and the bottom end of the U-shaped rod 305 is fixedly connected with a connecting rod 306, and the bottom end of the connecting rod 306 is fixedly connected with a bent rod 307, and the bent rod 307 is inserted into the strip groove 201 opened on the soft scraper strip 2, and a plurality of positioning grooves 202 are opened at equal intervals below the strip groove 201; the U-shaped rod 305 is fixedly connected with at least one first spring 308, and the bottom end of the first spring 308 contacts the top surface of the first frame 101.

[0058] like Figure 5-6 As shown, the positioning is released at this time; the length of the soft scraper strip 2 below the telescopic frame 1 is adjusted, and the bent rod 307 is aligned with a positioning groove 202 nearby. After adjustment, when performing the positioning operation, the pressure plate 302 is rotated to tighten the screw 303 in the fixing nut 301, and the screw 303 approaches the top surface of the insertion strip 103 to compress the second spring 310, increase the compression amount of the second spring 310, and make the pressure seat 311 press the insertion strip 103 for positioning; at the same time, the pressure plate 302 moves downward with the screw 303, and the lower pressure plate 302 body makes the plate body 304, the U-shaped rod 305, the connecting rod 306, and the bent rod 307 move downward together, so that the bent rod 307 is embedded in the positioning groove 202, and the first spring 308 is compressed at the same time to complete the positioning of the soft scraper strip 2.

[0059] When releasing the positioning, the pressure plate 302 is rotated to screw the screw 303 in the fixing nut 301 , and the bent rod 307 is separated from the positioning groove 202 and enters the strip groove 201 .

[0060] After the soft scraper is used, it is cleaned; in order to completely retract the soft scraper into the lower cover 401, the positioning mechanism 3 is released, as shown Figure 5-6state, and then rotate the seat body about the screw 303 (the circular hole 3041 set between the seat body and the screw 303 allows the two to rotate relative to each other). After the rotation, the bent rod 307 leaves the strip groove 201 to prevent the bent rod 307 from blocking the soft scraper 2 from completely entering the lower cover 401; after cleaning, the soft scraper 2 is reset, and then the seat body is rotated to reset the bent rod 307.

[0061] like Figure 7 As shown, it also includes a retractable rope assembly 5; the retractable rope assembly 5 includes a fixed cover 501 fixedly installed on one side of the second frame 102; a second roller body 502 and a guide roller 503 are rotatably installed in the fixed cover 501, a pull rope 504 is wound around the second roller body 502, and both ends of the second roller body 502 are provided with a clockwork spring 505, the two ends of the clockwork spring 505 are respectively fixed to the second roller body 502 and the inner wall of the fixed cover 501, the pull rope 504 bypasses the guide roller 503, and a through hole 1021 connected to the fixed cover 501 is opened on one side of the second frame 102, the pull rope 504 passes through the through hole 1021, and the pull rope 504 is fixed to one end of the soft scraper strip 2.

[0062] The spring 505 is always in a deformed state, providing a pulling force for one end of the soft scraper strip 2. When the reeling mechanism 4 straightens the soft scraper strip 2, the pulling force provided by the spring 505 is greater than the force of the reeling mechanism 4 on the other end of the soft scraper strip 2.

[0063] When cleaning the soft scraper, the twisting rod 405 is rotated so that the winding force of the winding and unwinding mechanism 4 is greater than the force of the spring 505, so that the soft scraper is completely received on the first roller body 403, and the soft scraper moves, pulling the pull rope 504, so that the pull rope 504 is unwound from the second roller body 502, and the second roller body 502 rotates to increase the deformation of the spring 505, and the pull rope 504 replaces the soft scraper strip 2 in the telescopic frame 1.

[0064] When the twisting rod 405 is loosened, the elastic force of the spring spring 505 drives the second roller body 502 to return and rotate, and the pull rope 504 is wound up. The pull rope 504 pulls the soft scraper to return the soft scraper to the telescopic frame 1.

[0065] The flushing mechanism 10 includes a connecting pipe 1001, a tee pipe 1002, a water inlet joint 1003 and a flushing nozzle 1004; the tee pipe 1002 is fixedly connected to the lower cover 401, and one port of the tee pipe 1002 is connected to the water inlet joint 1003 located outside the lower cover 401, and the other two ports of the tee pipe 1002 are connected to the connecting pipe 1001, and the flushing nozzle 1004 is installed at one end of the connecting pipe 1001 away from the tee pipe 1002, and the flushing nozzle 1004 faces the soft scraper strip 2.

[0066] When the soft scraper is rolled onto the first roller 403, the flushing mechanism 10 provides flushing and cleaning. The water inlet connector 1003 is connected to an external water supply device, such as the outlet of a high-pressure water pump, so that external cleaning water enters the water inlet connector 1003, and then enters the flushing nozzle 1004 through the three-way pipe 1002 and the connecting pipe 1001 to flush the soft scraper 2.

[0067] It also includes a height adjustment mechanism 6, the number of which is two, and the two height adjustment mechanisms 6 are respectively connected to the side wall of the lower cover 401 and the side wall of the fixed cover 501; the height adjustment mechanism 6 includes a cylinder 601, a connecting column 602, a positioning hole 603, a guide sleeve 604, an insertion rod 605 and a third spring 606; the connecting column 602 is connected with the inner wall of the cylinder 601 by clearance fit, the top side wall of the cylinder 601 is fixedly connected with a guide sleeve 604, and the guide sleeve 604 is connected to the cylinder 601, the insertion rod 605 is connected with the guide sleeve 604 by clearance fit, the connecting column 602 is provided with a plurality of positioning holes 603 distributed at equal intervals along the length direction, the insertion rod 605 is sleeved with a third spring 606, and the insertion rod 605 is elastically connected to the guide sleeve 604 through the third spring 606.

[0068] The height adjustment mechanism 6 is used to adjust the height of the scraper; the height adjustment operation is as follows: by pulling the pull rod, the pull rod is separated from the positioning socket 603, and the third spring 606 is stretched at the same time, and then the connecting column 602 is pulled, and the connecting column 602 and the cylinder 601 slide relative to each other to adjust the overall length of the height adjustment mechanism 6, and at the same time, the insertion rod 605 is aligned with a nearby positioning socket 603, and the insertion rod 605 is inserted into the positioning socket 603 to complete the positioning after adjustment.

[0069] The bottom of the cylinder 601 is fixed with a slider 7, and the slider 7 is slidably connected with a guide rail a. The guide rail a is used to be laid on both sides of the construction surface and kept horizontal, and the slider 7 slides in the guide rail a to provide guidance for leveling.

[0070] The push-pull rod 8 includes a rod body 801, a connecting plate 802 and a hinge column 803; the bottom end of the rod body 801 is hinged to the connecting plate 802 through the hinge column 803, and the connecting plate 802 is fixed to the top surface of the first frame 101. The push-pull rod 8 facilitates manual pushing of the entire device.

[0071] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A device for scraping and leveling a building floor, comprising a push-pull rod (8); characterized in that: Also includes: A telescopic frame (1), the telescopic frame (1) being mounted below a push-pull rod (8), and a soft scraper strip (2) being arranged below the telescopic frame (1); a positioning mechanism (3) being mounted on the telescopic frame (1) and being capable of providing positioning for the telescopic frame (1) and the soft scraper strip (2); A reeling and unreeling mechanism (4), the reeling and unreeling mechanism (4) being mounted on one side of the telescopic frame (1), the reeling and unreeling mechanism (4) being connected to the soft scraper strip (2) so as to adjust the length of the soft scraper strip (2) below the telescopic frame (1); A flushing mechanism (10) is arranged in the reeling and unreeling mechanism (4) to flush and clean the soft scraper strip (2) received in the reeling and unreeling mechanism (4).

2. The device for scraping building floor as claimed in claim 1, characterized in that: The telescopic frame (1) comprises a first frame body (101), a second frame body (102) and an insertion strip (103); the first frame body (101) is provided with a long slot along the length direction, the insertion strip (103) is inserted from the open end of the long slot, and the insertion strip (103) and the long slot are loosely matched, and one end of the insertion strip (103) located outside the long slot is fixedly connected to the second frame body (102).

3. The device for scraping building floor as claimed in claim 2, characterized in that: The positioning mechanism (3) comprises a fixing nut (301), a pressure plate (302) and a screw rod (303); the fixing nut (301) is fixedly connected to the top surface of the first frame (101) on the side close to the second frame (102), and the fixing nut (301) is connected to the long slot, the screw rod (303) is threadedly connected to the fixing nut (301), the top end of the screw rod (303) is fixedly connected to the pressure plate (302), the bottom end of the screw rod (303) is provided with a concave hole (309), the concave hole (309) is loosely connected to a pressure seat (311), the part of the pressure seat (311) extending from the concave hole (309) contacts the top surface of the insert (103) located in the long slot, and a second spring (310) is arranged in the concave hole (309).

4. The device for scraping building floor as claimed in claim 3, characterized in that: The positioning mechanism (3) further comprises a disc (304), a U-shaped rod (305), a connecting rod (306), a bent rod (307) and a first spring (308); the disc (304) is located between the pressure plate (302) and the fixing nut (301); a circular hole (3041) is formed on the disc (304); the screw rod (303) passes through the circular hole (3041); and the diameter of the circular hole (3041) is equal to the diameter of the screw rod (303); the disc (304) is fixedly connected to the U-shaped rod (305); the U-shaped rod (306) is connected to the first spring (308); 05) extends to the bottom of the first frame (101), and the bottom end of the U-shaped rod (305) is fixedly connected to a connecting rod (306), and the bottom end of the connecting rod (306) is fixedly connected to a bent rod (307), and the bent rod (307) is inserted into a strip groove (201) provided on the soft scraper strip (2), and a plurality of positioning grooves (202) are provided at equal intervals below the strip groove (201); the U-shaped rod (305) is fixedly connected to at least one first spring (308), and the bottom end of the first spring (308) contacts the top surface of the first frame (101).

5. The device for scraping and leveling a building floor as claimed in claim 2, characterized in that: The reeling and unwinding mechanism (4) comprises a lower cover (401), an upper shell (402), a first roller (403), a bevel gear (404) and a twisting rod (405); the lower cover (401) is fixed to a side of the first frame (101) away from the second frame (102), and the bottom of the lower cover (401) is open, the top of the lower cover (401) is fixed to the upper shell (402), the first roller (403) is rotatably installed in the lower cover (401), and the part of the soft scraper (2) located in the lower cover (401) is wound around the first roller (403). 03), a guide groove (9) is opened on one side wall of the lower cover (401), the guide groove (9) passes through the side wall of the first frame (101), the soft scraper (2) passes through the guide groove (9), the top end of the first roller body (403) extends into the upper shell (402), and a twisting rod (405) is rotatably installed on one side wall of the upper shell (402), the part of the twisting rod (405) located in the upper shell (402) and the top end of the first roller body (403) are fixedly sleeved with a bevel gear (404), and the two bevel gears (404) are meshingly connected.

6. The device for scraping and leveling a building floor as claimed in claim 5, characterized in that: The invention also comprises a rope-retracting assembly (5); the rope-retracting assembly (5) comprises a fixed cover (501) fixedly mounted on one side of the second frame (102); a second roller (502) and a guide roller (503) are rotatably mounted in the fixed cover (501); a pull rope (504) is wound around the second roller (502), and springs (505) are arranged at both ends of the second roller (502); the two ends of the springs (505) are respectively fixedly connected to the second roller (502) and the inner wall of the fixed cover (501); the pull rope (504) passes around the guide roller (503); a through hole (1021) communicating with the fixed cover (501) is opened on one side of the second frame (102); the pull rope (504) passes through the through hole (1021), and the pull rope (504) is fixedly connected to one end of the soft scraper strip (2).

7. The device for scraping building floor as claimed in claim 5, characterized in that: The flushing mechanism (10) comprises a connecting pipe (1001), a three-way pipe (1002), a water inlet joint (1003) and a flushing nozzle (1004); the three-way pipe (1002) is fixedly connected to the lower cover (401), and one end of the three-way pipe (1002) is connected to the water inlet joint (1003) located outside the lower cover (401), and the other two ends of the three-way pipe (1002) are both connected to the connecting pipe (1001), and the flushing nozzle (1004) is installed at one end of the connecting pipe (1001) away from the three-way pipe (1002), and the flushing nozzle (1004) faces the soft scraper (2).

8. The device for scraping and leveling a building floor as claimed in claim 6, characterized in that: The device also includes a height adjustment mechanism (6), wherein the number of the height adjustment mechanisms (6) is two, and the two height adjustment mechanisms (6) are respectively connected to the side wall of the lower cover (401) and the side wall of the fixed cover (501); the height adjustment mechanism (6) includes a cylinder (601), a connecting column (602), a positioning plug hole (603), a guide sleeve (604), an insertion rod (605) and a third spring (606); the connecting column (602) is connected to the inner wall of the cylinder (601) with a clearance fit, A guide sleeve (604) is fixedly connected to the top side wall of the cylinder (601), and the guide sleeve (604) is connected to the cylinder (601). The insertion rod (605) is connected to the guide sleeve (604) with a clearance fit. The connecting column (602) is provided with a plurality of positioning holes (603) distributed at equal intervals along the length direction. A third spring (606) is sleeved on the insertion rod (605), and the insertion rod (605) is elastically connected to the guide sleeve (604) via the third spring (606).

9. The device for scraping building floor as claimed in claim 8, characterized in that: A slider (7) is fixedly connected to the bottom of the cylinder (601), and the slider (7) is slidably connected to a guide rail (a).

10. The construction floor scraping device according to claim 2, characterized in that: The push-pull rod (8) comprises a rod body (801), a connecting plate (802) and a hinge column (803); the bottom end of the rod body (801) is hinged to the connecting plate (802) via the hinge column (803), and the connecting plate (802) is fixedly connected to the top surface of the first frame (101).

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