CN108592771B - Simple and easy testing arrangement of building board roughness - Google Patents
Simple and easy testing arrangement of building board roughness Download PDFInfo
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- CN108592771B CN108592771B CN201810399594.6A CN201810399594A CN108592771B CN 108592771 B CN108592771 B CN 108592771B CN 201810399594 A CN201810399594 A CN 201810399594A CN 108592771 B CN108592771 B CN 108592771B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
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Abstract
The invention relates to a building detection tool, in particular to a simple building plate flatness testing device which comprises an underframe assembly, a testing assembly and a transmission assembly. The chassis subassembly include bottom plate, trapezoidal sand grip, extension board, limit fender arris, place flat board, rectangle cover and landing leg, the trapezoidal sand grip of upper end fixedly connected with of bottom plate places the equal fixedly connected with extension board in both ends about the flat board lower extreme, two equal sliding connection of extension board are on trapezoidal sand grip, place the equal fixedly connected with limit of both ends and keep off the arris around the flat board up end, four equal fixedly connected with landing legs in the angle department of lower extreme of rectangle cover, the equal fixed connection of four right-hand members at the bottom plate of four equal fixed connection of landing legs.
Description
Technical Field
The invention relates to a building detection tool, in particular to a simple building plate flatness testing device.
Background
the board can be divided into two categories of solid board and artificial board according to material classification; classified by forming, they can be classified into solid boards, plywood, fiberboard, decorative panels, fire-proof boards, particle boards, and the like. Solid wood boards are wood boards made of intact wood. The boards are firm and durable, have natural grains, and are the best choice in decoration. However, the plates are not used much in decoration because of high cost and high requirements on construction process. Solid wood boards are generally classified according to the actual name of the board, and have no uniform standard specification. Except that solid wood boards are used for the floor and the door leaf, the boards used by people are all artificial boards processed by people. In order to simply test the flatness of the building board, a simple building board flatness testing device is designed.
Disclosure of Invention
The invention provides a simple testing device for the flatness of a building board, which has the beneficial effects that the flatness of the building board can be simply tested, the building board is prevented from being provided with bulges to influence the use of the building board, and the simple testing device can be suitable for testing the building board with a large-range thickness.
the invention relates to a building detection tool, in particular to a simple building plate flatness testing device which comprises an underframe assembly, a testing assembly and a transmission assembly.
The chassis assembly comprises a bottom plate, a trapezoidal convex strip, support plates, edge blocking edges, a placing flat plate, a rectangular sleeve and support legs, wherein the trapezoidal convex strip is fixedly connected to the upper end of the bottom plate, the support plates are fixedly connected to the left end and the right end of the lower end of the placing flat plate, the two support plates are connected to the trapezoidal convex strip in a sliding mode, the edge blocking edges are fixedly connected to the front end and the rear end of the upper end face of the placing flat plate, the support legs are fixedly connected to four corners of the lower end of the rectangular sleeve, and the four;
the testing component comprises a rectangular cylinder, a vertical moving rod groove, a seat plate, a spring catch, a spring sleeve rod, an L-shaped frame, an arc-shaped rod, a swing rod, a shaft supporting plate, a left gear, a middle shaft, a right gear, a middle gear, a left shaft and a sliding support, wherein the right lower end of the rectangular cylinder is fixedly connected with the sliding support, the rectangular cylinder is a hollow cuboid with the left and right opened, the left lower end of the rectangular cylinder is fixedly connected with the seat plate, the front end and the rear end of the seat plate are respectively provided with the vertical moving rod groove, the left upper end of the rectangular cylinder is fixedly connected with the L-shaped frame, the L-shaped frame is slidably connected with the spring sleeve rod, the lower end of the spring sleeve rod is fixedly connected with the spring catch, the spring catch is positioned below the L-shaped frame, the spring sleeve rod between the L-shaped frame and the spring catch is sleeved on the spring sleeve rod, the front end and the, the left gear is fixedly connected to the left shaft, the middle shaft and the right shaft are rotatably connected between the front shaft supporting plate and the rear shaft supporting plate sequentially through a bearing seat with a bearing from left to right, the right end of the left gear is meshed with the left end of the middle gear, the right end of the middle gear is meshed with the left end of the right gear, the middle end of the upper end surface of the rectangular cylinder is fixedly connected with an arc-shaped rod, the lower end of the swing rod is fixedly connected to the left shaft, the upper end of the swing rod is attached to the front end surface of the arc-shaped rod;
The transmission assembly comprises a cross rod, a sliding cylinder groove, a roller shaft, vertical moving rods and an articulated lug, wherein the upper end of the articulated lug is fixedly connected to the right shaft, the cross rod penetrates through the inside of a rectangular cylinder, the right end of the cross rod is fixedly connected to the lower end of the articulated lug, the left end of the cross rod is provided with the sliding cylinder groove, the two vertical moving rods are respectively connected to the two vertical moving rod grooves in a sliding mode, the sliding cylinder is fixedly connected between the upper ends of the two vertical moving rods and is connected to the sliding cylinder groove in a sliding mode, the roller shaft is fixedly connected to the middle end of the roller shaft, and the roller shaft is rotatably connected between the lower ends.
The chassis assembly further comprises a fastening screw, the right end of the rectangular sleeve is connected with the fastening screw through threads, the sliding support is connected to the rectangular sleeve in a sliding mode, and the fastening screw abuts against the sliding support.
the chassis component further comprises a rack, a lower gear, shaft brackets, a lower gear shaft and a hand rocker, the rack is fixedly connected with the lower end of a flat plate, the two shaft brackets are fixedly connected to a bottom plate below the flat plate, the lower gear is fixedly connected to the middle end of the lower gear shaft, the front end and the rear end of the lower gear shaft are respectively rotatably connected to the two shaft brackets, the upper end of the lower gear is meshed with the rack, and the hand rocker is fixedly connected to the front end of the lower gear shaft.
The circle center of the circle where the outer ring of the arc-shaped rod is located on the axis of the left shaft, the diameters of the right gear and the middle gear are equal, and the diameter of the left gear is equal to one half of the diameter of the middle gear.
The roller is positioned above the placing flat plate, and the spring blocking piece is propped against the upper left end of the cross rod.
The simple testing device for the flatness of the building board has the beneficial effects that:
the simple testing device for the building board flatness can simply test the flatness of the building board, prevents the building board from being provided with bulges to influence the use of the building board, and can be suitable for testing the building board with a large-range thickness.
Drawings
the invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a first schematic structural diagram of a simple device for testing the flatness of a building board according to the present invention;
FIG. 2 is a schematic structural diagram of a simple testing device for flatness of a building board according to the present invention;
FIG. 3 is a first schematic view of a first embodiment of a base frame assembly;
FIG. 4 is a second schematic view of the undercarriage assembly;
FIG. 5 is a first schematic structural diagram of a test assembly;
FIG. 6 is a second schematic structural view of a test assembly;
FIG. 7 is a third schematic structural view of a test assembly;
FIG. 8 is a first schematic structural view of a transmission assembly;
Fig. 9 is a structural schematic diagram of a transmission assembly.
in the figure: a chassis assembly 1; a bottom plate 1-1; 1-2 of trapezoidal convex strips; 1-3 of a support plate; 1-4 of edge blocking edges; placing the flat plate 1-5; 1-6 of a rectangular sleeve; fastening screws 1-7; 1-8 parts of supporting legs; 1-9 of racks; 1-10 parts of lower gear; 1-11 parts of a shaft bracket; lower gear shafts 1 to 12; 1-13 parts of a hand rocker; a test assembly 2; 2-1 of a rectangular cylinder; a vertical moving rod groove 2-2; 2-3 of a seat board; 2-4 parts of spring catch; 2-5 parts of a spring sleeve rod; 2-6 of an L-shaped frame; 2-7 of arc-shaped rods; 2-8 parts of a swing rod; shaft support plates 2-9; 2-10 parts of a left gear; 2-11 of a middle shaft; 2-12 of the right shaft; 2-13 of a right gear; 2-14 parts of middle gear; 2-15 of a left shaft; 2-16 of a sliding support; a transmission assembly 3; 3-1 of a cross bar; 3-2 of a sliding cylinder; 3-3 of a sliding cylindrical groove; 3-4 of rollers; 3-5 of roller shafts; 3-6 of a vertical moving rod; hinge lugs 3-7.
Detailed Description
The first embodiment is as follows:
The embodiment is described below with reference to fig. 1-9, and the invention relates to a building detection tool, in particular to a simple building board flatness testing device, which comprises an underframe assembly 1, a testing assembly 2 and a transmission assembly 3.
The underframe assembly 1 comprises a bottom plate 1-1, trapezoidal convex strips 1-2, support plates 1-3, edge blocking edges 1-4, a placing flat plate 1-5, a rectangular sleeve 1-6 and support legs 1-8, wherein the upper end of the bottom plate 1-1 is fixedly connected with the trapezoidal convex strips 1-2, the left and right ends of the lower end of the placing flat plate 1-5 are fixedly connected with the support plates 1-3, the two support plates 1-3 are both slidably connected to the trapezoidal convex strips 1-2, the front and rear ends of the upper end surface of the placing flat plate 1-5 are both fixedly connected with the edge blocking edges 1-4, the four corners of the lower end of the rectangular sleeve 1-6 are both fixedly connected with the support legs 1-8, and the four support legs 1-8 are all fixedly connected to; the placing flat plates 1-5 can move left and right on the trapezoidal raised lines 1-2 through the two support plates 1-3, when the building board is tested, the building board needs to be placed at the upper ends of the placing flat plates 1-5, and the two edge blocking edges 1-4 can prevent the building board from sliding off the placing flat plates 1-5.
the testing component 2 comprises a rectangular cylinder 2-1, vertical moving rod grooves 2-2, a seat plate 2-3, spring catch plates 2-4, spring loop rods 2-5, L-shaped frames 2-6, arc-shaped rods 2-7, swing rods 2-8, a shaft support plate 2-9, a left gear 2-10, a middle shaft 2-11, a right shaft 2-12, a right gear 2-13, a middle gear 2-14, a left shaft 2-15 and a sliding support 2-16, the right lower end of the rectangular cylinder 2-1 is fixedly connected with the sliding support 2-16, the rectangular cylinder 2-1 is a hollow cuboid with the left and right opened, the left lower end of the rectangular cylinder 2-1 is fixedly connected with the seat plate 2-3, the front and rear ends of the seat plate 2-3 are respectively provided with the vertical moving rod grooves 2-2, the left upper end of the rectangular cylinder 2-1 is fixedly connected with the L-shaped frames 2-6, the L-shaped frame 2-6 is connected with a spring loop bar 2-5 in a sliding way, the lower end of the spring loop bar 2-5 is fixedly connected with a spring baffle plate 2-4, the spring baffle plate 2-4 is positioned below the L-shaped frame 2-6, a spring is sleeved on the spring loop bar 2-5 between the L-shaped frame 2-6 and the spring baffle plate 2-4, the front end and the rear end of the right upper end of the rectangular cylinder 2-1 are fixedly connected with shaft support plates 2-9, a right gear 2-13 is fixedly connected on a right shaft 2-12, a middle gear 2-14 is fixedly connected on a middle shaft 2-11, a left gear 2-10 is fixedly connected on a left shaft 2-15, the middle shaft 2-11 and the right shaft 2-12 are rotatably connected between the front shaft support plate and the rear shaft support plate 2-9 through bearing blocks sequentially, the right end of the left gear 2-10 is meshed with the left end of the middle gear 2-14, the right end of the middle gear 2-14 is meshed with the left end of the right gear 2-13, the middle end of the upper end face of the rectangular cylinder 2-1 is fixedly connected with an arc-shaped rod 2-7, the lower end of the swing rod 2-8 is fixedly connected to the left shaft 2-15, the upper end of the swing rod 2-8 is attached to the front end face of the arc-shaped rod 2-7, and the sliding support 2-16 is connected to the rectangular sleeve 1-6;
The transmission component 3 comprises a cross rod 3-1, a sliding cylinder 3-2, a sliding cylinder groove 3-3, a roller 3-4, a roller shaft 3-5, a vertical moving rod 3-6 and a hinge convex block 3-7, the upper end of the hinge convex block 3-7 is fixedly connected on a right shaft 2-12, the cross rod 3-1 passes through the inside of the rectangular cylinder 2-1, the right end of the cross rod 3-1 is fixedly connected at the lower end of the hinge convex block 3-7, the left end of the cross rod 3-1 is provided with the sliding cylinder groove 3-3, the two vertical moving rods 3-6 are respectively and slidably connected on the two vertical moving rod grooves 2-2, the sliding cylinder 3-2 is fixedly connected between the upper ends of the two vertical moving rods 3-6, the sliding cylinder 3-2 is slidably connected on the sliding cylinder groove 3-3, the middle end of the roller shaft 3-5 is fixedly connected with the roller 3-4, the lower ends of the two vertical moving rods 3-6 are rotatably connected with roller shafts 3-5. Because the spring on the spring sleeve rod 2-5 pushes the spring catch 2-4 downwards, the spring catch 2-4 pushes the left end of the cross rod 3-1 downwards, the left end of the cross rod 3-1 drives the sliding column 3-2 and the two vertical moving rods 3-6 to move downwards, so that the roller 3-4 is pressed against the top surface of the building board placed on the flat plate 1-5, when the placing flat plate 1-5 and the building board on the placing flat plate move rightwards, the building board is provided with a bulge, the bulge on the building board enables the roller 3-4, the vertical moving rods 3-6 and the sliding column 3-2 to move upwards, the sliding column 3-2 drives the left end of the cross rod 3-1 to move upwards when moving upwards, at the moment, the hinged lug 3-7 rotates clockwise, so that the right shaft 2-12 and the right gear 2-13 rotate clockwise, the right gear 2-13 drives the middle gear 2-14 and the middle shaft 2-11 to rotate anticlockwise, the middle gear 2-14 drives the left gear 2-10, the left shaft 2-15 and the swing rod 2-8 to rotate clockwise, and as the diameter of the left gear 2-10 is equal to one half of the diameter of the middle gear 2-14, when the middle gear 2-14 rotates by a small angle and is transmitted to the left gear 2-10, the left gear 2-10 rotates by a large angle, so that the rotating angle of the swing rod 2-8 is enlarged, and the swing distance of the swing rod 2-8 on the arc-shaped rod 2-7 is observed, so that the bulge on the building board can be obviously tested.
the underframe assembly 1 further comprises fastening screws 1-7, the right ends of the rectangular sleeves 1-6 are connected with the fastening screws 1-7 through threads, the sliding supports 2-16 are connected to the rectangular sleeves 1-6 in a sliding mode, and the fastening screws 1-7 are abutted to the sliding supports 2-16. The sliding support 2-16 can vertically slide on the rectangular sleeve 1-6, so that the height of the rectangular cylinder 2-1 can be adjusted, the invention can adapt to the test of building boards with a large range of thicknesses, and the sliding support 2-16 can be fixed on the rectangular sleeve 1-6 by rotating the fastening screw 1-7.
The chassis assembly 1 further comprises racks 1-9, lower gears 1-10, shaft brackets 1-11, lower gear shafts 1-12 and hand-operated rods 1-13, the lower end of the placing flat plate 1-5 is fixedly connected with the racks 1-9, the bottom plate 1-1 below the placing flat plate 1-5 is fixedly connected with the two shaft brackets 1-11, the middle end of the lower gear shaft 1-12 is fixedly connected with the lower gears 1-10, the front end and the rear end of the lower gear shaft 1-12 are respectively connected onto the two shaft brackets 1-11 in a rotating mode, the upper ends of the lower gears 1-10 are meshed with the racks 1-9, and the front ends of the lower gear shafts 1-12 are fixedly connected with the hand-operated rods 1-13. When the hand-operated lever 1-13 is shaken, the lower gear shafts 1-12 and the lower gears 1-10 can be driven to rotate, the lower gears 1-10 are meshed with the racks 1-9 when rotating, so that the placing flat plate 1-5 is driven to move left and right, the two support plates 1-3 are driven to move left and right on the trapezoidal convex strips 1-2, and the placing flat plate 1-5 can be driven to move left and right by using the hand-operated lever 1-13, so that the placing flat plate 1-5 can be uniformly moved.
The circle center of the circle where the outer ring of the arc-shaped rod 2-7 is located on the axis of the left shaft 2-15, the diameters of the right gear 2-13 and the middle gear 2-14 are equal, and the diameter of the left gear 2-10 is equal to one half of the diameter of the middle gear 2-14.
The roller 3-4 is positioned above the placing flat plate 1-5, and the spring catch 2-4 is propped against the left upper end of the cross rod 3-1.
The invention relates to a simple testing device for the flatness of a building board, which has the working principle that: the placing flat plates 1-5 can move left and right on the trapezoidal raised lines 1-2 through the two support plates 1-3, when the building board is tested, the building board needs to be placed at the upper ends of the placing flat plates 1-5, and the two edge blocking edges 1-4 can prevent the building board from sliding off the placing flat plates 1-5. Because the spring on the spring sleeve rod 2-5 pushes the spring catch 2-4 downwards, the spring catch 2-4 pushes the left end of the cross rod 3-1 downwards, the left end of the cross rod 3-1 drives the sliding column 3-2 and the two vertical moving rods 3-6 to move downwards, so that the roller 3-4 is pressed against the top surface of the building board placed on the flat plate 1-5, when the placing flat plate 1-5 and the building board on the placing flat plate move rightwards, the building board is provided with a bulge, the bulge on the building board enables the roller 3-4, the vertical moving rods 3-6 and the sliding column 3-2 to move upwards, the sliding column 3-2 drives the left end of the cross rod 3-1 to move upwards when moving upwards, at the moment, the hinged lug 3-7 rotates clockwise, so that the right shaft 2-12 and the right gear 2-13 rotate clockwise, the right gear 2-13 drives the middle gear 2-14 and the middle shaft 2-11 to rotate anticlockwise, the middle gear 2-14 drives the left gear 2-10, the left shaft 2-15 and the swing rod 2-8 to rotate clockwise, and as the diameter of the left gear 2-10 is equal to one half of the diameter of the middle gear 2-14, when the middle gear 2-14 rotates by a small angle and is transmitted to the left gear 2-10, the left gear 2-10 rotates by a large angle, so that the rotating angle of the swing rod 2-8 is enlarged, and the swing distance of the swing rod 2-8 on the arc-shaped rod 2-7 is observed, so that the bulge on the building board can be obviously tested. The sliding support 2-16 can vertically slide on the rectangular sleeve 1-6, so that the height of the rectangular cylinder 2-1 can be adjusted, the invention can adapt to the test of building boards with a large range of thicknesses, and the sliding support 2-16 can be fixed on the rectangular sleeve 1-6 by rotating the fastening screw 1-7. When the hand-operated lever 1-13 is shaken, the lower gear shafts 1-12 and the lower gears 1-10 can be driven to rotate, the lower gears 1-10 are meshed with the racks 1-9 when rotating, so that the placing flat plate 1-5 is driven to move left and right, the two support plates 1-3 are driven to move left and right on the trapezoidal convex strips 1-2, and the placing flat plate 1-5 can be driven to move left and right by using the hand-operated lever 1-13, so that the placing flat plate 1-5 can be uniformly moved.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (4)
1. The utility model provides a simple and easy testing arrangement of building board roughness, includes chassis subassembly (1), test component (2) and drive assembly (3), its characterized in that: the underframe assembly (1) comprises a bottom plate (1-1), trapezoidal raised lines (1-2), support plates (1-3), edge blocking edges (1-4), placing flat plates (1-5), rectangular sleeves (1-6) and support legs (1-8), the upper end of the bottom plate (1-1) is fixedly connected with a trapezoidal convex strip (1-2), the left end and the right end of the lower end of the placing flat plate (1-5) are fixedly connected with supporting plates (1-3), the two supporting plates (1-3) are connected onto the trapezoidal convex strip (1-2) in a sliding mode, the front end and the rear end of the upper end face of the placing flat plate (1-5) are fixedly connected with edge blocking edges (1-4), four corners of the lower end of the rectangular sleeve (1-6) are fixedly connected with supporting legs (1-8), and the four supporting legs (1-8) are fixedly connected to the right end of the bottom plate (1-1);
The testing component (2) comprises a rectangular cylinder (2-1), a vertical rod moving groove (2-2), a seat plate (2-3), a spring catch (2-4), a spring sleeve rod (2-5), an L-shaped frame (2-6), an arc-shaped rod (2-7), a swing rod (2-8), a shaft support plate (2-9), a left gear (2-10), a middle shaft (2-11), a right shaft (2-12), a right gear (2-13), a middle gear (2-14), a left shaft (2-15) and a sliding support (2-16), the right lower end of the rectangular cylinder (2-1) is fixedly connected with the sliding support (2-16), the rectangular cylinder (2-1) is a hollow cuboid with the left and the right open, the left lower end of the rectangular cylinder (2-1) is fixedly connected with the seat plate (2-3), vertical rod moving grooves (2-2) are respectively arranged at the front end and the rear end of a seat plate (2-3), the left upper end of a rectangular cylinder (2-1) is fixedly connected with an L-shaped frame (2-6), a spring loop bar (2-5) is connected on the L-shaped frame (2-6) in a sliding manner, the lower end of the spring loop bar (2-5) is fixedly connected with a spring catch (2-4), the spring catch (2-4) is positioned below the L-shaped frame (2-6), a spring is sleeved on the spring loop bar (2-5) between the L-shaped frame (2-6) and the spring catch (2-4), a shaft support plate (2-9) is fixedly connected at the front end and the rear end of the right upper end of the rectangular cylinder (2-1), a right gear (2-13) is fixedly connected on a right shaft (2-12), a middle gear (2-14) is fixedly connected on a middle shaft (2-11), the left gear (2-10) is fixedly connected to the left shaft (2-15), a middle shaft (2-11) and a right shaft (2-12) are rotatably connected between a front shaft support plate and a rear shaft support plate (2-9) sequentially from left to right through a bearing seat with a bearing, the right end of a left gear (2-10) is meshed with the left end of a middle gear (2-14), the right end of the middle gear (2-14) is meshed with the left end of a right gear (2-13), the middle end of the upper end surface of a rectangular cylinder (2-1) is fixedly connected with an arc-shaped rod (2-7), the lower end of a swing rod (2-8) is fixedly connected onto the left shaft (2-15), the upper end of the swing rod (2-8) is attached to the front end surface of the arc-shaped rod (2-7), and a sliding support (2-16) is connected onto a rectangular sleeve (1-;
the transmission component (3) comprises a cross rod (3-1), a sliding cylinder (3-2), sliding cylinder grooves (3-3), rollers (3-4), roller shafts (3-5), vertical moving rods (3-6) and a hinge lug (3-7), the upper end of the hinge lug (3-7) is fixedly connected to a right shaft (2-12), the cross rod (3-1) penetrates through the inside of the rectangular cylinder (2-1), the right end of the cross rod (3-1) is fixedly connected to the lower end of the hinge lug (3-7), the sliding cylinder grooves (3-3) are arranged at the left end of the cross rod (3-1), the two vertical moving rods (3-6) are respectively and slidably connected to the two vertical moving rod grooves (2-2), the sliding cylinder (3-2) is fixedly connected between the upper ends of the two vertical moving rods (3-6), the sliding cylinder (3-2) is connected to the sliding cylinder groove (3-3) in a sliding manner, the middle end of the roller shaft (3-5) is fixedly connected with a roller (3-4), and the roller shaft (3-5) is rotatably connected between the lower ends of the two vertical moving rods (3-6);
the circle center of a circle where the outer ring of the arc-shaped rod (2-7) is located on the axis of the left shaft (2-15), the diameters of the right gear (2-13) and the middle gear (2-14) are equal, and the diameter of the left gear (2-10) is equal to one half of the diameter of the middle gear (2-14).
2. The simple and easy testing arrangement of building board roughness of claim 1, characterized by: the underframe assembly (1) further comprises fastening screws (1-7), the right ends of the rectangular sleeves (1-6) are connected with the fastening screws (1-7) through threads, the sliding supports (2-16) are connected onto the rectangular sleeves (1-6) in a sliding mode, and the fastening screws (1-7) are abutted to the sliding supports (2-16).
3. The simple and easy testing arrangement of building board roughness of claim 1, characterized by: the underframe assembly (1) also comprises racks (1-9) and lower gears (1-10), the device comprises shaft frames (1-11), lower gear shafts (1-12) and hand-operated rods (1-13), racks (1-9) are fixedly connected to the lower ends of placing plates (1-5), two shaft frames (1-11) are fixedly connected to a bottom plate (1-1) below the placing plates (1-5), lower gears (1-10) are fixedly connected to the middle ends of the lower gear shafts (1-12), the front ends and the rear ends of the lower gear shafts (1-12) are rotatably connected to the two shaft frames (1-11) respectively, the upper ends of the lower gears (1-10) are meshed with the racks (1-9), and the hand-operated rods (1-13) are fixedly connected to the front ends of the lower gear shafts (1-12).
4. The simple and easy testing arrangement of building board roughness of claim 1, characterized by: the rollers (3-4) are positioned above the placing flat plates (1-5), and the spring blocking pieces (2-4) are propped against the upper left end of the cross rod (3-1).
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