Flatness measuring device for constructional engineering

Abstract

The utility model discloses a flatness measuring device for constructional engineering, which relates to the technical field of flatness measurement and comprises a shell, a top cover is rotatably connected to the position, close to the left side, of the upper surface of the shell, and four universal wheels distributed in a rectangular shape are rotatably connected to the positions, close to the four corners, of the lower surface of the shell. The inner wall of the shell is movably sleeved with three powder storage boxes which are linearly arranged, and the lower surfaces of the three powder storage boxes are fixedly connected with marking structures. According to the flatness measuring device for constructional engineering, through movement of the shell, when the flatness measuring device encounters a concave place, the detection wheel descends, so that the discharging box located on the right side spills powder for marking, and when the flatness measuring device encounters a place protruding out of a plane, the detection wheel moves upwards, and the discharging box located on the left side spills powder for marking. And meanwhile, the detection wheel passes through the mark on the left side and is rolled, so that different marks can be distinguished.

Description

Technical Field

[0001] The utility model relates to the technical field of flatness measurement, in particular to a flatness measuring device for construction engineering. Background Art

[0002] Building construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. It includes foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction, etc. During the construction process, it is necessary to measure the flatness of the ground.

[0003] For example, the Chinese patent with publication number CN219200323U discloses a flatness measuring device for construction engineering, including a shell, a storage box fixedly connected to the front end of the shell, a hook fixedly connected to the left and right ends of the storage box, an upper groove opened at the upper end of the storage box, a lower groove opened at the front end of the storage box, the lower groove is not connected to the upper groove, universal wheels are fixedly connected to the four corners of the lower end of the shell, three marking devices are movably connected to the middle of the lower end of the shell, and the three marking devices are equidistantly distributed, a powder bin is inserted and fixedly connected to the right part of the upper end of the shell, the powder bin extends to the lower end of the shell, the upper left part of the powder bin is movably connected to a cover plate through a hinge, and a handrail is fixedly connected to the right part of the front end and the right part of the rear end of the shell. The utility model can effectively solve the problem that a flatness measuring device for construction engineering cannot mark the ground more accurately during use, and is convenient to use.

[0004] The existing technology has the following problems:

[0005] The detection method adopted by the measuring device is in the form of gravity, so that when encountering a pit, the measuring wheel drops, causing the powder inside the powder bin to fall and be marked. This makes the measuring wheel rise when encountering a position protruding from the horizontal plane, but at this time the powder bin is blocked, making it difficult to mark it. Utility Model Content

[0006] The utility model provides a flatness measuring device for construction engineering to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A flatness measuring device for construction engineering comprises a shell, a top cover is rotatably connected to the upper surface of the shell near the left side, four universal wheels distributed in a rectangular shape are rotatably connected to the lower surface of the shell near the four corners, three powder storage boxes arranged linearly are movably sleeved on the inner wall of the shell, three lifting structures currently distributed are fixedly connected to the upper surface of the top cover, marking structures are fixedly connected to the lower surfaces of the three powder storage boxes, and handrails are fixedly connected to the front and rear sides of the shell near the right side.

[0009] Preferably, the three lifting structures all include a linkage component, which is fixedly connected to the upper surface of the top cover, and two linkage components are symmetrically distributed on the left and right, the inner walls of the two linkage components are movably sleeved with a protective shell, the inner cavity of the protective shell is movably sleeved with a fixed plate, the inner cavity of the protective shell is movably sleeved with a spring, and the spring is located below the fixed plate, the inner walls of the protective shell are fixedly connected with protrusions near the middle on the left and right sides, the upper surface of the fixed plate is provided with a flow groove running through the fixed plate near the left and right sides, and the flow groove is located directly above the protrusion, and the upper surface of the fixed plate is provided with a fixing groove near the front and rear sides.

[0010] Preferably, a rotating block is rotatably connected to the inner side of the fixed plate, a linkage square rod is fixedly connected to the axis center of the lower surface of the rotating block, six evenly distributed circular through holes are opened on the upper and lower walls of the top cover, the outer wall of the linkage square rod is movably sleeved on the inner side of the circular through holes, the left and right sides of the three powder storage boxes are threadedly connected with screw rods, the outer wall of the screw rods is rotatably connected to the upper wall of the shell near the upper end, square grooves are opened at the axis center of the upper surfaces of the six screw rods, the linkage square rod is located directly above the square groove, and a rotating wheel is fixedly connected to the upper surface of the rotating block on the left side.

[0011] Preferably, the upper and lower surfaces of the inner cavity of the top cover are rotatably connected with six symmetrical sprockets, the outer wall of the linked square rod is movably sleeved on the inner side of the sprocket, and the side surfaces of the two sprockets on the left and right sides are meshed with chains.

[0012] Preferably, the three marking structures all include a telescopic rod, the upper surface of the telescopic rod is fixedly connected to the middle of the lower surface of the powder storage box, and the lower end of the telescopic rod is rotatably connected to a detection wheel.

[0013] Preferably, the lower surfaces of the three powder storage boxes are fixedly connected with two symmetrically distributed material boxes, the lower inclined surface of the material box is provided with an opening connected to the inner cavity, the outer wall of the telescopic rod near the bottom is fixedly connected with a first baffle through a long rod, the upper surface of the first baffle is tightly attached to the lower surface of the material box on the right, the right side of the first baffle is fixedly connected with an inclined plate, and the inclined plate is tightly attached to the inclined surface of the material box on the right, and the upper surface of the first baffle is provided with a first notch.

[0014] Preferably, a second baffle is rotatably connected to the lower inclined surface of the left side material box near the bottom, and a tension spring is fixedly connected to the upper end of the second baffle. The upper end of the tension spring is fixedly connected to the left side of the material box near the upper surface.

[0015] Preferably, a second notch is provided on the lower surface of the second baffle near the bottom, a push piece is fixedly connected to the right end of the second baffle, and the outer wall of the telescopic rod near the bottom is slidably connected to a slide groove provided on the upper surface of the right end of the push piece.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a flatness measuring device for construction engineering, which adopts the cooperation of a shell, a marking structure, a telescopic rod, a detection wheel, a feed box, a first baffle, a second baffle, a tension spring and a push piece. Through the movement of the shell, when encountering a concave place, the detection wheel descends, so that the feed box on the right side sprinkles powder for marking. When encountering a place protruding from the plane, the detection wheel moves up, and the feed box on the left side sprinkles powder for marking, so that the bottom block protruding from the horizontal plane is also marked. At the same time, the detection wheel passes through the mark on the left side, causing it to be crushed, and different marks can be distinguished.

[0018] 2. The utility model provides a flatness measuring device for construction engineering, which adopts the cooperation of universal wheels, marking structures, powder storage boxes, lifting structures, screw rods, sprockets, chains, linkage components, protective shells, fixed plates, rotating blocks, linkage square rods, springs, circulation grooves, fixed grooves, and rotating wheels. By rotating the rotating wheel, one of the powder storage boxes is lowered, and then the marking structure thereon is also lowered synchronously. At the same time, the position of the lower side of the universal wheel remains unchanged, so that the detection device can detect the flatness of the inner side of the groove. When the powder storage boxes near the front and rear sides are lowered, the grooves close to the wall can be detected to avoid the shell being too wide, which causes the powder storage box to be blocked and unable to descend. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional three-dimensional structure of the utility model;

[0021] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0022] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the powder storage box of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the lifting structure of the utility model;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the linkage component part of the utility model;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the marking structure part of the utility model.

[0026] In the figure: 1. Shell; 2. Top cover; 3. Universal wheel; 4. Powder storage box; 5. Lifting structure; 51. Screw rod; 52. Sprocket; 53. Chain; 54. Linkage assembly; 541. Protective shell; 542. Fixed plate; 543. Rotating block; 544. Linkage square rod; 545. Spring; 546. Flow slot; 547. Fixed slot; 55. Rotating wheel; 6. Marking structure; 61. Telescopic rod; 62. Detection wheel; 63. Unloading box; 64. First baffle; 65. Second baffle; 66. Tension spring; 67. Push piece; 7. Armrest. DETAILED DESCRIPTION

[0027] 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 described below in conjunction with specific implementation methods.

[0028] like Figure 1 , Figure 2 As shown, a flatness measuring device for construction engineering comprises a shell 1, a top cover 2 is rotatably connected to the upper surface of the shell 1 near the left side, four universal wheels 3 distributed in a rectangular shape are rotatably connected to the lower surface of the shell 1 near the four corners, three powder storage boxes 4 arranged linearly are movably sleeved on the inner wall of the shell 1, three lifting structures 5 currently distributed are fixedly connected to the upper surface of the top cover 2, marking structures 6 are fixedly connected to the lower surfaces of the three powder storage boxes 4, and handrails 7 are fixedly connected to the front and rear sides of the shell 1 near the right side.

[0029] It should be noted that the universal wheels 3 are used to facilitate the movement of the housing 1, the armrests 7 are used to push the housing 1 to move, and the powder storage box 4 is used to store powder for marking.

[0030] like Figure 2 , Figure 4-Figure 6As shown, the three lifting structures 5 all include a linkage component 54, which is fixedly connected to the upper surface of the top cover 2, and two linkage components 54 are symmetrically distributed on the left and right, the inner walls of the two linkage components 54 are movably sleeved with a protective shell 541, the inner cavity of the protective shell 541 is movably sleeved with a fixing plate 542, the inner cavity of the protective shell 541 is movably sleeved with a spring 545, and the spring 545 is located below the fixing plate 542, the inner walls of the protective shell 541 are fixedly connected with protrusions near the middle on the left and right sides, the upper surface of the fixing plate 542 is provided with a flow groove 546 that runs through itself near the left and right sides, and the flow groove 546 is located directly above the protrusion, and the upper surface of the fixing plate 542 is provided with a fixing groove 547 near the front and rear sides.

[0031] It should be noted that the spring 545 pushes the fixing plate 542 so that the fixing plate 542 cannot drop, and the fixing plate 542 is pushed downward so that the protrusion passes through the fixing groove 547. Two protrusions are fixedly connected to the upper surface of the fixing plate 542 to facilitate the rotation of the fixing plate 542. The fixing plate 542 is rotated so that the protrusion is aligned with the fixing groove 547, and the fixing plate 542 is loosened so that the protrusion can be movably inserted into the inner side of the fixing groove 547, so that the fixing plate 542 is in a lower position and the fixing plate 542 is fixed.

[0032] like Figure 2 , Figure 4-Figure 6 As shown, a rotating block 543 is rotatably connected to the inner side of the fixed plate 542, and a linkage square rod 544 is fixedly connected to the axis center of the lower surface of the rotating block 543. Six evenly distributed circular through holes are provided on the upper and lower walls of the top cover 2. The outer wall of the linkage square rod 544 is movably sleeved on the inner side of the circular through holes. The left and right sides of the three powder storage boxes 4 are threadedly connected with screw rods 51. The outer wall of the screw rod 51 is rotatably connected to the upper wall of the shell 1 near the upper end. Square grooves are provided at the axis centers of the upper surfaces of the six screw rods 51. The linkage square rod 544 is located directly above the square grooves. A rotating wheel 55 is fixedly connected to the upper surface of the rotating block 543 on the left.

[0033] It should be noted that when the fixed plate 542 moves downward, the rotating block 543 moves downward synchronously, thereby causing the linked square rod 544 to move downward synchronously, so that the lower end of the linked square rod 544 can be movably sleeved into the square groove on the upper surface of the screw rod 51, and the rotating wheel 55 is rotated to cause the rotating block 543 to rotate, thereby driving the screw rod 51 to rotate through the linked square rod 544. When the screw rod 51 rotates, the powder storage box 4 moves up and down along the screw rod 51.

[0034] like Figure 2 , Figure 4-Figure 6 As shown, the upper and lower surfaces of the inner cavity of the top cover 2 are rotatably connected with six symmetrical sprocket wheels 52, the outer wall of the linkage square rod 544 is movably sleeved on the inner side of the sprocket wheel 52, and the side surfaces of the two sprocket wheels 52 on the left and right sides are meshed with chains 53.

[0035] It should be noted that when the linkage square rod 544 on the left side rotates, the sprocket 52 on it will be driven to rotate. When the sprocket 52 on the left side rotates, the chain 53 makes the two sprockets 52 rotate synchronously in the same direction, and then makes the two screw rods 51 rotate synchronously in the same direction, so that the left and right sides of the powder storage box 4 are subjected to balanced force.

[0036] like Figure 4 , Figure 7 As shown, the three marking structures 6 all include a telescopic rod 61 , the upper surface of the telescopic rod 61 is fixedly connected to the middle of the lower surface of the powder storage box 4 , and the lower end of the telescopic rod 61 is rotatably connected to a detection wheel 62 .

[0037] It should be noted that the telescopic rod 61 can adjust its own length. The telescopic rod 61 is affected by gravity. When the telescopic rod 61 is vertical, the length of the telescopic rod 61 increases, and the detection wheel 62 rolls on the ground. When encountering a pit, it follows the pit and descends. When encountering a position protruding from the horizontal plane, the detection wheel 62 moves upward.

[0038] like Figure 4 , Figure 7 As shown, the lower surfaces of the three powder storage boxes 4 are fixedly connected with two discharge boxes 63 which are symmetrically distributed on the left and right. The lower inclined surface of the discharge box 63 is provided with an opening connected to the inner cavity. The outer wall of the telescopic rod 61 is fixedly connected with a first baffle 64 near the bottom through a long rod. The upper surface of the first baffle 64 is tightly attached to the lower surface of the discharge box 63 on the right side. The right side of the first baffle 64 is fixedly connected with an inclined plate, and the inclined plate is tightly attached to the inclined surface of the discharge box 63 on the right side. The upper surface of the first baffle 64 is provided with a first notch.

[0039] It should be noted that when the detection wheel 62 enters the pit and moves downward, it drives the first baffle 64 to move downward, and the marking powder on the inside of the discharge box 63 on the right side is sprinkled out from the opening and falls to the ground through the first slot by gravity to mark it.

[0040] like Figure 7 As shown, the lower inclined surface of the left side material box 63 is rotatably connected to a second baffle 65 near the bottom, and the upper end of the second baffle 65 is fixedly connected to a tension spring 66, and the upper end of the tension spring 66 is fixedly connected to the left side of the material box 63 near the upper surface.

[0041] It should be noted that the tension spring 66 pulls the left side of the second baffle 65 so that when the second baffle 65 is not affected by external force, the second baffle 65 is close to the inclined surface of the tension spring 66. The tension spring 66 blocks the opening of the discharge box 63 on the left side, so that the powder cannot spill out.

[0042] like Figure 7As shown, a second notch is provided on the lower surface of the second baffle 65 near the bottom, a push piece 67 is fixedly connected to the right end of the second baffle 65, and the outer wall of the telescopic rod 61 near the bottom is slidably connected to the slide groove provided on the upper surface of the right end of the push piece 67.

[0043] It should be noted that when the detection wheel 62 passes over a small slope, the detection wheel 62 moves upward, and the detection wheel 62 pushes the push piece 67, so that the right end of the push piece 67 moves upward, thereby driving the second baffle 65 to rotate around the bottom, so that the opening on the discharge box 63 on the left side is opened, and the marking powder is sprinkled and falls from the second slot by gravity to mark it. When the detection wheel 62 passes the mark, it is crushed so that there is a trace of the detection wheel 62 passing by the mark.

[0044] The working principle of the utility model is as follows: first, when the detection wheel 62 passes through the pit, the detection wheel 62 moves down, driving the first baffle 64 to move down, and the marking powder on the inner side of the unloading box 63 on the right is sprinkled from the opening, and falls on the ground through the first notch by gravity to mark it; when the detection wheel 62 passes through the small slope, the detection wheel 62 moves up, and the detection wheel 62 pushes the push piece 67, so that the right end of the push piece 67 moves up, thereby driving the second baffle 65 to rotate around the bottom, so that the opening on the unloading box 63 on the left is opened, and the marking powder is sprinkled, and falls from the second notch by gravity to mark it; when the detection wheel 62 passes the mark, it is rolled over so that the There are traces of the detection wheel 62 passing by the mark at the place where the shell 1 moves. When the detection wheel 62 encounters a concave place, it descends, so that the unloading box 63 on the right side spills the powder for marking. When it encounters a place protruding from the plane, the detection wheel 62 moves up, and the unloading box 63 on the left side spills the powder for marking, so that the bottom block protruding from the horizontal plane is also marked. At the same time, the detection wheel 62 passes the mark on the left side, so that it is crushed, and different marks can be distinguished. Finally, the spring 545 pushes the fixed plate 542, so that the fixed plate 542 cannot descend, and pushes the fixed plate 542 downward, so that the protrusion passes through the fixing groove 547, and the upper surface of the fixed plate 542 is fixedly connected There are two protruding columns to facilitate the rotation of the fixing plate 542. The fixing plate 542 is rotated to align the protrusion with the fixing groove 547. The fixing plate 542 is loosened so that the protrusion can be movably sleeved into the inner side of the fixing groove 547, so that the fixing plate 542 is in a lower position and the fixing plate 542 is fixed. When the fixing plate 542 moves down, the rotating block 543 moves down synchronously, thereby causing the linkage square rod 544 to move down synchronously, so that the lower end of the linkage square rod 544 can be movably sleeved into the square groove on the upper surface of the screw rod 51. The rotating wheel 55 is rotated to rotate the rotating block 543, thereby driving the screw rod 51 to rotate through the linkage square rod 544. When the screw rod 51 rotates, the powder storage box 4 moves up and down along the screw rod 51 When the linkage square rod 544 on the left side rotates, it will drive the sprocket 52 thereon to rotate. When the sprocket 52 on the left side rotates, the chain 53 is used to make the two sprockets 52 rotate synchronously in the same direction, and then the two screw rods 51 rotate synchronously in the same direction, so that the left and right sides of the powder storage box 4 are subjected to balanced force. By rotating the rotating wheel 55, one of the powder storage boxes 4 is lowered, and then the marking structure 6 thereon is also lowered synchronously. At the same time, the position of the lower side of the universal wheel 3 remains unchanged, so that the detection device can detect the flatness of the inner side of the groove. When the powder storage boxes 4 near the front and rear sides are lowered, the grooves close to the wall can be detected to avoid the shell 1 being too wide, which causes the powder storage box 4 to be blocked and unable to descend.

[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flatness measuring device for construction engineering, comprising a housing (1), characterized in that: The upper surface of the shell (1) is rotatably connected to a top cover (2) near the left side, the lower surface of the shell (1) is rotatably connected to four universal wheels (3) distributed in a rectangular shape near the four corners, the inner wall of the shell (1) is movably sleeved with three linearly arranged powder storage boxes (4), the upper surface of the top cover (2) is fixedly connected to three currently distributed lifting structures (5), the lower surfaces of the three powder storage boxes (4) are all fixedly connected to marking structures (6), and the front and rear sides of the shell (1) are fixedly connected to handrails (7) near the right side.

2. A flatness measuring device for construction engineering according to claim 1, characterized in that: The three lifting structures (5) all include a linkage component (54), the linkage component (54) is fixedly connected to the upper surface of the top cover (2), and two linkage components (54) are symmetrically distributed on the left and right sides, the inner walls of the two linkage components (54) are movably sleeved with a protective shell (541), the inner cavity of the protective shell (541) is movably sleeved with a fixing plate (542), the inner cavity of the protective shell (541) is movably sleeved with a spring (545), and the spring (545) is located below the fixing plate (542), the inner wall of the protective shell (541) is fixedly connected with a protrusion near the middle on the left and right sides, the upper surface of the fixing plate (542) is provided with a flow groove (546) penetrating the fixing plate (542) near the left and right sides, and the flow groove (546) is located directly above the protrusion, and the upper surface of the fixing plate (542) is provided with a fixing groove (547) near the front and rear sides.

3. A flatness measuring device for construction engineering according to claim 2, characterized in that: The inner side of the fixed plate (542) is rotatably connected to a rotating block (543), and a linkage square rod (544) is fixedly connected to the axis center of the lower surface of the rotating block (543). Six evenly distributed circular through holes are opened on the upper and lower walls of the top cover (2), and the outer wall of the linkage square rod (544) is movably sleeved on the inner side of the circular through hole. The left and right sides of the three powder storage boxes (4) are threadedly connected to screw rods (51), and the outer wall of the screw rod (51) is rotatably connected to the upper wall of the shell (1) near the upper end. Square grooves are opened at the axis center of the upper surfaces of the six screw rods (51), and the linkage square rod (544) is located directly above the square grooves. A rotating wheel (55) is fixedly connected to the upper surface of the rotating block (543) located on the left.

4. A flatness measuring device for construction engineering according to claim 3, characterized in that: The upper and lower surfaces of the inner cavity of the top cover (2) are rotatably connected to six symmetrical sprocket wheels (52), the outer wall of the linkage square rod (544) is movably sleeved on the inner side of the sprocket wheel (52), and the side surfaces of the two sprocket wheels (52) on the left and right sides are meshedly connected to chains (53).

5. The flatness measuring device for construction engineering according to claim 1, characterized in that: The three marking structures (6) all comprise a telescopic rod (61), the upper surface of the telescopic rod (61) being fixedly connected to the middle of the lower surface of the powder storage box (4), and the lower end of the telescopic rod (61) being rotatably connected to a detection wheel (62).

6. A flatness measuring device for construction engineering according to claim 5, characterized in that: The lower surfaces of the three powder storage boxes (4) are fixedly connected to two discharge boxes (63) symmetrically distributed on the left and right. The lower inclined surface of the discharge box (63) is provided with an opening connected to the inner cavity. The outer wall of the telescopic rod (61) is fixedly connected to a first baffle (64) near the bottom through a long rod. The upper surface of the first baffle (64) is tightly attached to the lower surface of the discharge box (63) on the right. The right side of the first baffle (64) is fixedly connected to an inclined plate, and the inclined plate is tightly attached to the inclined surface of the discharge box (63) on the right. The upper surface of the first baffle (64) is provided with a first notch.

7. A flatness measuring device for construction engineering according to claim 6, characterized in that: A second baffle (65) is rotatably connected to the lower inclined surface of the left side material box (63) near the bottom, and a tension spring (66) is fixedly connected to the upper end of the second baffle (65). The upper end of the tension spring (66) is fixedly connected to the left side of the material box (63) near the upper surface.

8. A flatness measuring device for construction engineering according to claim 7, characterized in that: A second notch is provided on the lower surface of the second baffle (65) near the bottom, a push piece (67) is fixedly connected to the right end of the second baffle (65), and an outer wall of the telescopic rod (61) near the bottom is slidably connected to a slide groove provided on the upper surface of the right end of the push piece (67).

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