A large-area floor flatness detection device

Abstract

The application belongs to the technical field of flatness detection, and discloses a large-area floor flatness detection device, which comprises two supporting assemblies, a base, a spherical groove, a movable ball, a fixing unit, an installation plate arranged on the movable ball, a first horizontal bubble instrument arranged on the installation plate, a square tube arranged on the installation plate, a square seat arranged in the square tube, a lifting unit arranged in the square tube, a connecting hole horizontally arranged on the upper part of the square seat, a rack arranged between the connecting holes of the two square seats, an installation groove arranged in the middle of the rack, a second bubble level instrument arranged in the installation groove, and a moving detection mechanism arranged on the rack. The movable ball cooperates with the first horizontal bubble instrument to adjust the installation plate to a horizontal state. The lifting unit is used to adjust the height of the square seat, and the second bubble level instrument is used to adjust the rack to be horizontal. The position difference caused by the uneven ground of the supporting assembly can be avoided, the rack is prevented from being inclined, and the measurement error is fundamentally reduced.

Description

Technical Field

[0001] This utility model relates to the field of flatness detection technology, and in particular to a device for detecting the flatness of a large area of ​​floor. Background Technology

[0002] Flooring refers to a surface that has been treated using specific materials and processes to achieve a certain level of aesthetics and functionality. Floor flatness refers to the vertical deviation of the floor surface from an ideal plane, and is an important indicator that needs to be tested and accepted after the flooring is completed.

[0003] A large-area floor flatness testing device is disclosed in Chinese utility model patent with publication number CN223179511U. It includes at least two support columns, each support column has a counterweight base fixedly installed at its bottom, a connecting seat fixedly installed at its top, a connecting groove is provided through both sides of the connecting seat, a rack is provided between the connecting grooves of adjacent connecting seats, and a moving detection mechanism is provided on the outside of the rack.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the support column of the above-mentioned device is a fixed structure and cannot be adjusted to compensate for the positional deviation caused by uneven ground, resulting in the rack tilting and affecting the measurement accuracy. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a large-area floor flatness detection device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a large-area floor flatness testing device, comprising two support components, each support component including a base, a spherical groove on the base, a movable ball movably disposed within the spherical groove, a fixing unit on the base for fixing the movable ball, a mounting plate on the movable ball, a first level bubble level on the mounting plate, a square tube on the mounting plate, a square seat inside the square tube, a lifting unit inside the square tube for driving the square seat to rise and fall, a horizontal connecting hole on the upper part of the square seat, a rack passing through the connecting holes of the two square seats, an installation groove in the middle of the rack, a second level bubble level disposed within the installation groove, and a moving detection mechanism disposed on the rack.

[0007] By adopting the above technical solution, a support component, rack, and moving detection mechanism are set up. The movable ball, in conjunction with the first bubble level, can adjust the mounting plate to a horizontal state. The height of the square base is adjusted using a lifting unit, and the rack can be leveled using a second bubble level. This avoids positional differences caused by uneven ground where the support component is located, prevents rack tilting, fundamentally reduces measurement errors, and ensures the accuracy of large-area floor flatness testing. At the same time, the moving detection mechanism can move along the rack to achieve large-area testing.

[0008] Furthermore, the mobile detection mechanism includes a mounting frame, in which a drive motor is horizontally arranged. A vertical plate is provided on one side of the top surface of the mounting frame. A rotating shaft is horizontally rotatably arranged on the upper part of the vertical plate. A first gear is fixedly sleeved on the shaft located on the upper side of the mounting frame. The first gear meshes with a rack. One end of the rotating shaft passes through the vertical plate and is provided with a driven synchronous pulley. The output shaft of the drive motor passes through one side of the mounting frame and is provided with a driving synchronous pulley. The driving synchronous pulley and the driven synchronous pulley are connected by a synchronous belt. A connecting rod is provided at the bottom of the mounting frame, and a flatness detection component is provided at the lower end of the connecting rod.

[0009] By adopting the above technical solution, a drive motor, a driven synchronous pulley, and an active synchronous pulley are set up. The drive motor drives the first gear to rotate through the synchronous belt transmission, so that the entire mechanism moves smoothly along the rack. The flatness detection component at the lower end of the connecting rod can complete continuous detection as the mechanism moves, thereby improving detection efficiency and continuity.

[0010] Furthermore, an L-shaped plate is provided on one side of the mounting frame, and a rotating shaft is horizontally rotatably provided on the upper part of the L-shaped plate. A second gear is fixedly sleeved on the rotating shaft, and the second gear meshes with a rack.

[0011] By adopting the above technical solution, a rotating shaft is set up, and the second gear on the L-shaped plate meshes with the rack, forming a double meshing support with the first gear, which enhances the stability of the moving detection mechanism when it moves on the rack and prevents the mechanism from shaking and affecting the detection accuracy.

[0012] Furthermore, the rack has a guide groove with a trapezoidal cross-section along its length, and guide rings are fixedly provided in the middle of the first gear and the second gear, and the guide rings cooperate with the guide grooves.

[0013] By adopting the above technical solution and setting a guide ring, the trapezoidal guide groove on the rack cooperates with the guide rings of the first gear and the second gear to provide guidance for the movement of the mobile detection mechanism, limit the lateral displacement of the mechanism, and further improve the stability and detection accuracy of the movement process.

[0014] Furthermore, the sidewall of the spherical groove is provided with several screw holes, and the fixing unit includes a screw rod that is spirally disposed in the screw holes. The end of the screw rod abuts against the movable ball to fix the movable ball, and an adjustment handle is provided at the end of the screw rod away from the movable ball.

[0015] By adopting the above technical solution, a screw rod and an adjustment handle are set. After the screw rod on the side wall of the spherical groove is tightened by the adjustment handle, it abuts against and is fixed to the movable ball. This not only makes it easy to adjust the angle of the movable ball to match the leveling mounting plate of the first horizontal bubble meter, but also ensures that it is firmly fixed after leveling, thus ensuring the stability of the support component.

[0016] Furthermore, the lifting unit includes a fixed plate disposed inside a square tube, a first threaded rod is vertically rotatably disposed on the fixed plate, the square seat is helically connected to the first threaded rod through a first threaded hole, a worm gear is fixedly sleeved on the first threaded rod, a worm is horizontally rotatably disposed inside the tube body located on the upper side of the fixed plate, the worm gear cooperates with the worm gear, one end of the worm gear passes through the square tube and is provided with a control handle.

[0017] By adopting the above technical solution, a first threaded rod, a worm gear, and a worm wheel are set up. The rotation of the worm gear drives the rotation of the worm wheel and the first threaded rod to drive the square seat to rise and fall. The height of the square seat is adjusted to cooperate with the second bubble level to level the rack. The worm gear and worm wheel have a self-locking function, and the position is stable after adjustment. At the same time, the control handle is easy to operate.

[0018] Furthermore, two symmetrically arranged limiting plates are horizontally arranged on the inner wall of the square tube, and the limiting plates are higher than the worm gear and worm.

[0019] By adopting the above technical solution and setting a limiting plate, the limiting plate inside the square tube is higher than the worm gear and worm, which can limit the lifting range of the square seat, prevent the square seat from falling excessively and colliding with the worm gear and worm, and protect the safety of the components.

[0020] Furthermore, the top of the square base has two sliding holes communicating with the connecting hole. A sliding rod is slidably arranged in the sliding hole. The lower ends of the two sliding rods are located in the connecting hole and are jointly provided with a pressure plate. A second threaded rod is vertically rotatably arranged on the pressure plate. The square base is helically connected to the second threaded rod through the second threaded hole. A rotating handle is provided at the upper end of the second threaded rod.

[0021] By adopting the above technical solution, a sliding rod and a rotating handle are set up. The rotating handle drives the second threaded rod to rotate, causing the pressure plate to move up and down. In conjunction with the sliding rod, the rack can be firmly pressed into the connecting hole, preventing the rack from shaking during the test, ensuring the stability of the test reference, and further improving the test accuracy.

[0022] In summary, this utility model has the following beneficial effects: This application includes a support component, a rack, and a moving detection mechanism. The movable ball, in conjunction with the first level bubble level, can adjust the mounting plate to a horizontal state. The height of the square base is adjusted using a lifting unit, and the rack can be leveled using the second level bubble level. This avoids positional differences caused by uneven ground where the support component is located, prevents rack tilting, fundamentally reduces measurement errors, and ensures the accuracy of large-area floor flatness testing. Simultaneously, the moving detection mechanism can move along the rack to achieve large-area testing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 Enlarged view of part A;

[0025] Figure 3 This is a schematic diagram of the structure of the support component according to an embodiment of the present invention;

[0026] Figure 4 This is an exploded view of the movable ball and the base according to an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the internal structure of the square tube in an embodiment of this utility model.

[0028] In the diagram: 1. Support assembly; 10. Base; 11. Spherical groove; 12. Movable ball; 20. Fixing unit; 21. Screw rod; 22. Adjusting handle; 30. Mounting plate; 31. First horizontal bubble meter; 40. Square tube; 41. Square seat; 42. Connecting hole; 43. Limiting plate; 50. Lifting unit; 51. Fixing plate; 52. First threaded rod; 53. Worm gear; 54. Worm; 55. Control handle; 60. Rack; 61. 62. Mounting slot; 63. Second bubble level; 70. Guide slot; 71. Moving detection mechanism; 71. Mounting frame; 711. L-shaped plate; 712. Second gear; 72. Drive motor; 73. Vertical plate; 74. First gear; 75. Driven synchronous pulley; 76. Driven synchronous pulley; 77. Connecting rod; 78. Flatness detection assembly; 79. Guide ring; 80. Slide rod; 81. Pressure plate; 82. Second threaded rod; 83. Rotating handle. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-5 As shown in the figure, this application discloses a large-area floor flatness testing device, including a support assembly 1 and a mobile testing mechanism 70. The support assembly 1 has two parts, each including a base 10 with a spherical groove 11. A movable ball 12 is movably disposed within the spherical groove 11. A fixing unit 20 is provided on the base 10 to fix the movable ball 12. A mounting plate 30 is provided on the movable ball 12, and a first horizontal bubble meter 31 is provided on the mounting plate 30. The movable ball 12, in conjunction with the first horizontal bubble meter 31, can adjust the mounting plate 30 to a horizontal state. A square tube 40 is vertically disposed on the mounting plate 30, and a square seat 41 is disposed within the square tube 40. A lifting unit 50 is provided within the square tube 40 to drive the square seat 41 to rise and fall. A horizontal connecting hole 42 is provided on the upper part of the square base 41. A rack 60 passes through the connecting hole 42 between two square bases 41. A mounting groove 61 is provided in the middle of the rack 60, and a second bubble level 62 is installed in the mounting groove 61. A moving detection mechanism 70 is installed on the rack 60. The height of the square base 41 is adjusted by the lifting unit 50, and the rack 60 can be adjusted to be horizontal by combining the second bubble level 62. This avoids positional differences caused by uneven ground on the support component 1, prevents the rack 60 from tilting, fundamentally reduces measurement errors, and ensures the accuracy of large-area floor flatness detection. At the same time, the moving detection mechanism 70 can move along the rack 60 to achieve large-area detection.

[0031] Specifically, the cavity of the spherical groove 11 is a space larger than a hemisphere. The diameter of the movable ball 12 is slightly smaller than the inner diameter of the cavity of the spherical groove 11. The upper end of the movable ball 12 protrudes from the opening of the spherical groove 11 and is set as a plane. The upper end surface of the movable ball 12 is attached to and fixedly connected to the bottom of the mounting plate 30. The level of the mounting plate 30 is adjusted by the position of the movable ball 12 in the spherical groove 11. When adjusting the level of the mounting plate 30, the position of the bubble in the first leveling bubble meter 31 is observed to confirm that the mounting plate 30 has been adjusted to a level state. Several screw holes are opened on the side wall of the spherical groove 11. The fixing unit 20 includes a screw rod 21 screwed in the screw hole. The end of the screw rod 21 abuts against the movable ball 12 to fix the movable ball 12. An adjustment handle 22 is provided at the end of the screw rod 21 away from the movable ball 12. The screw rod 21 on the side wall of the spherical groove 11 is tightened through the adjusting handle 22 and then abuts against the movable ball 12 for fixation. This allows for convenient adjustment of the angle of the movable ball 12 to match the leveling mounting plate 30 of the first horizontal bubble meter 31, and also ensures a stable fixation after leveling, thus guaranteeing the stability of the support assembly 1.

[0032] In setup, the lifting unit 50 includes a fixed plate 51 housed within a square tube 40. A first threaded rod 52 is vertically rotatably mounted on the fixed plate 51. A square seat 41 is helically connected to the first threaded rod 52 via a first threaded hole. A worm gear 53 is fixedly sleeved on the first threaded rod 52. A worm 54 is horizontally rotatably mounted within the tube body of the square tube 40, located above the fixed plate 51. The worm 54 engages with the worm gear 53. One end of the worm 54 passes through the square tube 40 and is equipped with a control handle 55. The rotation of the worm 54 drives the worm gear 53 and the first threaded rod 52 to rotate, thereby raising and lowering the square seat 41. Adjusting the height of the square seat 41 allows the rack 60 to be leveled in conjunction with the second bubble level 62. The worm 54 and worm gear 53 have a self-locking function, ensuring stable positioning after adjustment. The control handle 55 facilitates operation. Two symmetrically arranged limiting plates 43 are horizontally arranged on the inner wall of the square tube 40. The limiting plates 43 are higher than the worm gear 53 and worm 54, which can limit the lifting range of the square seat 41, prevent the square seat 41 from falling too far and colliding with the worm gear 53 and worm 54, and protect the safety of the components.

[0033] In the specific configuration, the top of the square base 41 has two sliding holes communicating with the connecting hole 42. Sliding rods 80 are slidably installed within these sliding holes. The lower ends of the two sliding rods 80 are located within the connecting hole 42 and share a pressure plate 81. A second threaded rod 82 is vertically rotatably mounted on the pressure plate 81. The square base 41 is helically connected to the second threaded rod 82 through the second threaded hole. A rotating handle 83 is located at the upper end of the second threaded rod 82. By rotating the handle 83, the second threaded rod 82 rotates, causing the pressure plate 81 to move up and down. This, combined with the sliding rods 80, securely presses the rack 60 into the connecting hole 42, preventing the rack 60 from wobbling during testing, ensuring the stability of the testing reference, and further improving testing accuracy.

[0034] The mobile inspection mechanism 70 includes a mounting frame 71, within which a drive motor 72 is horizontally mounted. A vertical plate 73 is mounted on one side of the top surface of the mounting frame 71. A rotating shaft is horizontally rotatable on the upper part of the vertical plate 73. A first gear 74 is fixedly fitted onto the shaft located on the upper side of the mounting frame 71. The first gear 74 meshes with a rack 60. One end of the rotating shaft passes through the vertical plate 73 and is fitted with a driven synchronous pulley 75. The output shaft of the drive motor 72 passes through one side of the mounting frame 71 and is fitted with a driving synchronous pulley 76. The diameter of the driving synchronous pulley 76 is smaller than that of the synchronous pulley. The driving synchronous pulley 76 and the driven synchronous pulley 75 are connected by a synchronous belt. A connecting rod 77 is mounted at the bottom of the mounting frame 71, and a flatness inspection component 78 is mounted at the lower end of the connecting rod 77. The drive motor 72 drives the first gear 74 to rotate via a synchronous belt, causing the entire mechanism to move smoothly along the rack 60. The flatness detection component 78 at the lower end of the connecting rod 77 can perform continuous detection as the mechanism moves, improving detection efficiency and continuity. The flatness detection component 78 is specifically a laser displacement sensor. The laser displacement sensor generates a laser beam to scan the ground surface, and determines parameters such as the height and flatness of the road surface by measuring the reflection time and intensity of the laser beam. An L-shaped plate 711 is provided on one side of the mounting frame 71. A rotating shaft is horizontally rotatable on the upper part of the L-shaped plate 711, and a second gear 712 is fixedly sleeved on the rotating shaft. The second gear 712 meshes with the rack 60. The second gear 712 on the L-shaped plate 711 meshes with the rack 60, forming a double meshing support with the first gear 74, which enhances the stability of the moving detection mechanism 70 when moving on the rack 60 and prevents the mechanism from shaking and affecting the detection accuracy. The rack 60 has a guide groove 63 with a trapezoidal cross-section along its length. The first gear 74 and the second gear 712 are both fixedly provided with concentrically arranged guide rings 79. The guide rings 79 and the guide grooves 63 roll together to provide guidance for the movement of the moving detection mechanism 70, limit the lateral deviation of the mechanism, and further improve the stability and detection accuracy of the movement process.

[0035] The operating principle of the large-area floor flatness testing device in this embodiment is as follows: Place the two support components 1 at both ends of the testing area, rotate the adjustment handle 22 to loosen the screw rod 21, adjust the angle of the mounting plate 30 through the movable ball 12 in the spherical groove 11, and observe the first level bubble meter 31 until the mounting plate 30 is completely horizontal. Then, rotate the adjustment handle 22 to fix the screw rod 21. Next, pass the rack 60 through the connecting holes 42 of the square seats 41 on both sides. Rotate the control handle 55 to drive the square seats 41 to rise and fall through the worm gear 54 and worm wheel 53, and adjust the rack 60 to a horizontal state in conjunction with the second level bubble meter 62. Then, tighten the rotating handle 83 and the second threaded rod 82, and clamp the rack 60 firmly through the pressure plate 81. Then, pick up the moving testing mechanism 70, ensuring that its first gear 74 and second gear 712 are engaged with the rack 60, and the guide ring 79 is embedded in the guide groove 63. The drive motor 72 is connected to an external power source and starts. The first gear 74 and the second gear 712 move smoothly along the rack 60, driving the laser displacement sensor to scan the floor surface synchronously, thus achieving continuous detection.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A large-area floor flatness testing device, characterized in that: It includes two support components (1), each support component (1) including a base (10), a spherical groove (11) provided on the base (10), a movable ball (12) movably disposed in the spherical groove (11), a fixing unit (20) for fixing the movable ball (12) provided on the base (10), a mounting plate (30) provided on the movable ball (12), a first horizontal bubble meter (31) provided on the mounting plate (30), and a square tube (40) provided on the mounting plate (30). A square seat (41) is provided inside the rectangular tube (40). A lifting unit (50) for driving the square seat (41) to rise and fall is provided inside the rectangular tube (40). A connecting hole (42) is horizontally opened on the upper part of the square seat (41). A rack (60) is passed through the connecting hole (42) of the two square seats (41). An installation groove (61) is opened in the middle of the rack (60). A second bubble level (62) is provided in the installation groove (61). A moving detection mechanism (70) is provided on the rack (60).

2. The large-area floor flatness testing device according to claim 1, characterized in that: The mobile detection mechanism (70) includes a mounting frame (71), in which a drive motor (72) is horizontally arranged. A vertical plate (73) is provided on one side of the top surface of the mounting frame (71). A rotating shaft is horizontally rotatably arranged on the upper part of the vertical plate (73). A first gear (74) is fixedly sleeved on the shaft of the rotating shaft located on the upper side of the mounting frame (71). The first gear (74) meshes with a rack (60). One end of the rotating shaft passes through the vertical plate (73) and is provided with a driven synchronous pulley (75). The output shaft of the drive motor (72) passes through one side of the mounting frame (71) and is provided with an active synchronous pulley (76). The active synchronous pulley (76) and the driven synchronous pulley (75) are connected by a synchronous belt. A connecting rod (77) is provided at the bottom of the mounting frame (71). A flatness detection component (78) is provided at the lower end of the connecting rod (77).

3. The large-area floor flatness testing device according to claim 2, characterized in that: An L-shaped plate (711) is provided on one side of the mounting frame (71). A rotating shaft is provided on the upper part of the L-shaped plate (711) for horizontal rotation. A second gear (712) is fixedly sleeved on the rotating shaft. The second gear (712) meshes with the rack (60).

4. The large-area floor flatness testing device according to claim 3, characterized in that: The rack (60) has a guide groove (63) with a trapezoidal cross-section along its length. The first gear (74) and the second gear (712) are both fixedly provided with guide rings (79) in the middle. The guide rings (79) cooperate with the guide grooves (63).

5. The large-area floor flatness testing device according to claim 1, characterized in that: The spherical groove (11) has several screw holes on its side wall. The fixing unit (20) includes a screw rod (21) that is spirally disposed in the screw hole. The end of the screw rod (21) abuts against the movable ball (12) to fix the movable ball (12). An adjustment handle (22) is provided at the end of the screw rod (21) away from the movable ball (12).

6. The large-area floor flatness testing device according to claim 1, characterized in that: The lifting unit (50) includes a fixed plate (51) disposed inside a square tube (40). A first threaded rod (52) is vertically rotatably disposed on the fixed plate (51). The square seat (41) is helically connected to the first threaded rod (52) through a first threaded hole. A worm gear (53) is fixedly sleeved on the first threaded rod (52). A worm (54) is horizontally rotatably disposed inside the tube body of the square tube (40) located on the upper side of the fixed plate (51). The worm (54) cooperates with the worm gear (53). One end of the worm (54) passes through the square tube (40) and is provided with a control handle (55).

7. A large-area floor flatness testing device according to claim 6, characterized in that: The inner wall of the square tube (40) is provided with two symmetrically arranged limiting plates (43), which are higher than the worm gear (53) and the worm (54).

8. The large-area floor flatness testing device according to claim 1, characterized in that: The square base (41) has two sliding holes at the top that communicate with the connecting hole (42). A sliding rod (80) is slidably arranged in the sliding hole. The lower ends of the two sliding rods (80) are located in the connecting hole (42) and are jointly provided with a pressure plate (81). A second threaded rod (82) is vertically rotatably arranged on the pressure plate (81). The square base (41) is helically connected to the second threaded rod (82) through the second threaded hole. A rotating handle (83) is provided at the upper end of the second threaded rod (82).

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