Wood floor curvature detection device

Abstract

The utility model provides a wood floor curvature detection device, and relates to the technical field of measuring tools. The whole workbench is rectangular, the bottom of the workbench is supported on the ground through four supporting columns, a shaft connecting support is arranged in the middle of the bottom of the workbench, and vertical plates are arranged on the left side and the right side of the bottom of the workbench. By arranging the bidirectional screw rod and the clamping plates, after a wood floor is placed on the workbench, the rocking handle A is rotated to drive the bidirectional screw rod to rotate through the bevel gear A and the bevel gear B, so that the clamping plates clamp the two sides of the wood floor, and at the moment, the highest position of the wood floor is aligned to the position under the rotating shaft; the size of the measured wood floor in the length direction and the height direction is not changed, namely, the bending degree of the wood floor is not changed, measurement errors caused by the fact that the bending degree of the wood floor is changed when pressure is applied to the wood floor during measurement are avoided, and the bending degrees of the wood floors of different sizes can be measured through the method.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring tools, and more specifically, particularly relates to a device for detecting the curvature of wooden floors. Background Art

[0002] As a commonly used flooring material in bedrooms during decoration, wooden floors have many advantages such as low price, noise reduction, and beauty. There are many requirements for the size specifications of wooden floors during production, such as: length, thickness, flatness, splicing gaps, etc. Among them, the curvature data is relatively difficult to measure. And compared with marble floors, wooden floors are softer in texture and are more likely to deform during the production process. It is necessary to measure the curvature to determine the defective product level and calculate the pass rate of this production batch, and decide whether to stop the machine for debugging.

[0003] Based on the above, existing curvature detection devices usually place the wooden floor on a plane and calculate the curvature of the wooden floor by detecting the angle between the two end cut surfaces of the wooden floor and the horizontal plane. This method uses the two endpoints on both sides of the wooden floor as the reference points for angle measurement. If the size of the wooden floor changes, the position and distance of the reference points will both change. If some tools are used for measurement, correct measurement data cannot be obtained without prior debugging; on the other hand, a certain pressure will be applied to the wooden floor during measurement, which will also cause a change in curvature and affect the detection result. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a device for detecting the curvature of wooden floors to solve the problem that the existing curvature detection device cannot detect the curvature of wooden floors with different sizes.

[0005] The utility model provides a device for detecting the curvature of wooden floors, which is achieved by the following specific technical means:

[0006] A device for detecting the bending degree of a wooden floor, comprising a workbench; the workbench is rectangular as a whole, and the bottom of the workbench is supported on the ground by four support columns. An axle-connected bracket is arranged in the middle at the bottom of the workbench, vertical plates are arranged on the left and right sides at the bottom of the workbench, and two guide rods are fixedly connected between the vertical plates on both sides of the workbench. A set of clamping plates are inserted on both sides of the guide rods to form a sliding connection. A bidirectional screw rod is inserted near the bottom in the middle of the clamping plates to form a threaded connection. Both ends of the bidirectional screw rod are rotatably connected to the vertical plates of the workbench. A bevel gear A is axially arranged in the middle of the bidirectional screw rod. A bevel gear B is vertically engaged below the bevel gear A. A rocking handle A is fixedly connected to the center at the bottom of the bevel gear B. The rotating shaft of the rocking handle A passes through the axle-connected bracket and forms a rotating connection; a protractor device is arranged above the workbench. The protractor device comprises a first connecting rod and a second connecting rod; the first connecting rod comprises a tapered bushing, a bevel gear C and a measuring rod A. One end of the bushing is axially fixedly connected to the bevel gear C, and the other end is vertically fixedly connected to the measuring rod A; the second connecting rod comprises a rotating shaft, a bevel gear D and a measuring rod B. One side of the rotating shaft is axially fixedly connected to the bevel gear D, and the bevel gear D faces the bevel gear C; the other side of the bevel gear D is vertically fixedly connected to the measuring rod B; the rotating shaft passes through the bushing to form a rotating connection; a wooden floor is placed above the workbench.

[0007] Further, square holes are opened on the left and right sides of the workbench; the clamping plates pass through the square holes to reach above the workbench. A notch is opened in the middle at the top of the clamping plates. Positioning grooves in the front-back direction are fixedly connected on both sides of the notch. Pin holes are opened on the left and right of the positioning grooves and positioning pins are inserted.

[0008] Further, slot holes are opened on both sides of the measuring rod A and the measuring rod B. Positioning sliding sleeves are slidably connected to the outside of the measuring rod A and the measuring rod B through the slot holes for limiting. Positioning shafts are arranged in the horizontal direction on both sides of the positioning sliding sleeves. The radius of the positioning shafts is equal to the inner diameter of the positioning grooves, and the tops of the positioning shafts abut against the lower sides of the positioning pins.

[0009] Further, a C-shaped frame is inserted on the bushing and the rotating shaft. The front and rear walls of the C-shaped frame are located on both sides of the bevel gear C and the bevel gear D. A bevel gear E is meshed between the bevel gear C and the bevel gear D. A rocking handle B is fixedly connected to the center of one side of the bevel gear E. The rocking handle B passes through the side wall of the C-shaped frame and forms a rotating connection.

[0010] Further, a pin hole is opened on the rocking handle B; an insertion block is arranged on one side of the C-shaped frame; when the rocking handle B is in a horizontal state, its pin hole and the insertion hole of the insertion block of the C-shaped frame are on the same axis, and a limiting pin is inserted into the pin hole and the insertion hole to limit the angle of the rocking handle B.

[0011] Further, one side of the C-shaped frame is fixedly connected with a display dial; a notch is opened in front of the display dial of the bushing, and a vertically-directional pointer A is fixedly connected in the radial direction beside the notch; a vertically-directional pointer B is fixedly connected in the radial direction at the notch of the bushing on the rotating shaft. Pointer B is attached to one side of pointer A, and both point to the zero scale line in the middle of the display dial.

[0012] Further, both sides of the rotating shaft are placed in the placement groove. A vertically-directional limiting rod is fixedly connected to the bottom of the placement groove. The limiting rod is inserted through the limiting sleeve to form a sliding connection. A horizontally-directional pin hole is opened in the limiting rod, and a fixing pin is inserted into the pin hole; the limiting sleeve is fixedly connected to one side of the workbench through a side support plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By setting a bidirectional screw and clamping plates, the clamping plates are inserted through the bidirectional screw near the bottom in the middle and form a threaded connection. Both ends of the bidirectional screw are rotatably connected to the vertical plates of the workbench. A bevel gear A is axially arranged in the middle of the bidirectional screw. A bevel gear B is vertically meshed below the bevel gear A. A rocking handle A is fixedly connected to the center of the bottom of the bevel gear B. After placing the wooden floor on the workbench, rotate the rocking handle A to drive the bidirectional screw to rotate through the bevel gear A and the bevel gear B, so that the clamping plates clamp both sides of the wooden floor. At this time, the highest position of the wooden floor is aligned directly below the rotating shaft. During measurement, due to the limitation of the clamping plates on both sides, the dimensions of the measured wooden floor in the length direction and the height direction will not change, that is, the curvature of the wooden floor will not change, avoiding measurement errors caused by the change of the curvature due to the pressure applied to the wooden floor during measurement, and the curvature of wooden floors of different sizes can be measured by this method.

[0015] 2. By setting a positioning sliding sleeve and a positioning groove, when measuring the curvature of the wooden floor, place the positioning shaft of the positioning sliding sleeve in the positioning groove and insert a positioning pin for limitation. The measuring rod A and the measuring rod B can rotate around the positioning shaft. At the same time, the positioning sliding sleeve slides in the slot holes of the measuring rod A and the measuring rod B. Twice the minimum angle formed by the tangents at both ends of the wooden floor and the workbench is the measured curvature of the wooden floor, which is approximately the sum of the angles between the workbench and the measuring rod A or the measuring rod B, that is, the angle between the pointer A and the pointer B on the display dial. The measurement data can be read very directly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the first perspective view of the utility model.

[0017] Figure 2 is the second perspective view of the utility model.

[0018] Figure 3 is the front view of the utility model.

[0019] Figure 4 It is a schematic structural diagram of the wooden floor placed on the workbench of the present utility model.

[0020] Figure 5 It is a schematic structural diagram of the angle measuring device of the present utility model.

[0021] Figure 6 It is a schematic structural diagram of the first connecting rod of the present utility model.

[0022] Figure 7 It is a schematic structural diagram of the second connecting rod of the present utility model.

[0023] Figure 8 It is a schematic diagram of the connection relationship between the rotating shaft and the shaft sleeve of the present utility model.

[0024] Figure 9 It is the present utility model Figure 1 The partial enlarged view at position A in the figure.

[0025] Figure 10 It is the present utility model Figure 1 The partial enlarged view at position B in the figure.

[0026] Figure 11 It is the present utility model Figure 2 The partial enlarged view at position C in the figure.

[0027] Figure 12 It is the present utility model Figure 4 The partial enlarged view at position D in the figure.

[0028] In the figure, the corresponding relationship between the component names and the drawing reference numerals is as follows:

[0029] 1. Workbench; 2. Support column; 3. Guide rod; 4. Clamp; 5. Bidirectional screw; 6. Bevel gear A; 7. Bevel gear B; 8. Rocking handle A; 9. Shaft connection bracket; 10. Positioning groove; 11. Positioning pin; 12. C-shaped frame; 13. Shaft sleeve; 14. Rotating shaft; 15. Bevel gear C; 16. Bevel gear D; 17. Bevel gear E; 18. Rocking handle B; 19. Limit pin; 20. Measuring rod A; 21. Measuring rod B; 22. Positioning sliding sleeve; 23. Dial plate; 24. Pointer A; 25. Pointer B; 26. Placing groove; 27. Limit rod; 28. Limit sleeve; 29. Fixed pin; 30. Side support plate; 31. Wooden floor. Specific embodiments

[0030] The following further describes in detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model. Example

[0031] As shown in the attached Figure 1 To the attachedFigure 12 As shown in the figure:

[0032] The utility model provides a device for detecting the bending degree of a wooden floor, which comprises a workbench 1; the workbench 1 is rectangular as a whole, the bottom of the workbench 1 is supported on the ground by four supporting columns 2, an axially connected bracket 9 is arranged in the middle at the bottom of the workbench 1, vertical plates are arranged on the left and right sides at the bottom of the workbench 1, two guide rods 3 are fixedly connected between the vertical plates on both sides of the workbench 1, a set of clamping plates 4 are inserted on both sides of the guide rods 3 to form a sliding connection, a bidirectional screw rod 5 is inserted near the bottom in the middle of the clamping plates 4 to form a threaded connection, both ends of the bidirectional screw rod 5 are rotatably connected to the vertical plates of the workbench 1, a bevel gear A6 is axially arranged in the middle of the bidirectional screw rod 5, a bevel gear B7 is vertically engaged below the bevel gear A6, a rocking handle A8 is fixedly connected to the center at the bottom of the bevel gear B7, and the rotating shaft of the rocking handle A8 passes through the axially connected bracket 9 to form a rotating connection; an angle measuring device is arranged above the workbench 1, and the angle measuring device comprises a first connecting rod and a second connecting rod; the first connecting rod comprises a tapered bushing 13, a bevel gear C15 and a measuring rod A20, one end of the bushing 13 is axially fixedly connected to the bevel gear C15, and the other end is vertically fixedly connected to the measuring rod A20; the second connecting rod comprises a rotating shaft 14, a bevel gear D16 and a measuring rod B21, one side of the rotating shaft 14 is axially fixedly connected to the bevel gear D16, and the bevel gear D16 faces the bevel gear C15; the other side of the bevel gear D16 is vertically fixedly connected to the measuring rod B21; the rotating shaft 14 passes through the bushing 13 to form a rotating connection; a wooden floor 31 is placed above the workbench 1.

[0033] Among them, as Figure 1 shown, square holes are opened on the left and right sides of the workbench 1; the clamping plates 4 pass through the square holes to reach above the workbench 1. After the wooden floor 31 is placed on the workbench 1, the rocking handle A8 is rotated to drive the bidirectional screw rod 5 to rotate through the bevel gear A6 and the bevel gear B7, so that the clamping plates 4 clamp both sides of the wooden floor 31; a notch is opened in the middle at the top of the clamping plates 4, positioning grooves 10 in the front and rear directions are fixedly connected on both sides of the notch, pin holes are opened on the left and right of the positioning grooves 10 and positioning pins 11 are inserted; as Figure 10 shown, slot holes are opened on both sides of the measuring rod A20 and the measuring rod B21, positioning sliding sleeves 22 are slidably connected to the outside of the measuring rod A20 and the measuring rod B21 through the slot holes for limiting, positioning shafts are arranged on both sides of the positioning sliding sleeves 22 in the horizontal direction, the radius of the positioning shafts is equal to the inner diameter of the positioning grooves 10, and the top of the positioning shafts abuts against the lower part of the positioning pins 11. When measuring the bending degree of the wooden floor 31, the positioning shafts of the positioning sliding sleeves 22 are placed in the positioning grooves 10 and the positioning pins 11 are inserted for limiting. The measuring rod A20 and the measuring rod B21 can rotate around the positioning shafts. At the same time, the positioning sliding sleeves 22 slide in the slot holes of the measuring rod A20 and the measuring rod B21. Twice the minimum included angle formed by both ends of the wooden floor 31 and the workbench 1 is the measured bending degree of the wooden floor 31, which is approximately equal to the sum of the included angles between the workbench 1 and the measuring rod A20 or the measuring rod B21.

[0034] Among them, as Figure 10 shown, a C-shaped frame 12 is inserted through a shaft sleeve 13 and a rotating shaft 14. The front and rear walls of the C-shaped frame 12 are located on both sides of a bevel gear C15 and a bevel gear D16. A bevel gear E17 is meshed between the bevel gear C15 and the bevel gear D16. A rocking handle B18 is fixedly connected to the center of one side of the bevel gear E17. The rocking handle B18 penetrates through the side wall of the C-shaped frame 12 and forms a rotational connection; a pin hole is opened on the rocking handle B18; an insertion block is arranged on one side of the C-shaped frame 12; when the rocking handle B18 is in a horizontal state, its pin hole and the insertion hole of the insertion block of the C-shaped frame 12 are located on the same axis, and a limit pin 19 is inserted into the pin hole and the insertion hole to limit the angle of the rocking handle B18; after the limit pin 19 is pulled out to release the limit, by rotating the rocking handle B18, the shaft sleeve 13 and the rotating shaft 14 are driven to rotate through the bevel gear C15, the bevel gear D16 and the bevel gear E17, and the measuring rod A20 and the measuring rod B21 can rotate by the same angle.

[0035] Among them, as Figure 12 shown, a display dial 23 is fixedly connected to one side of the C-shaped frame 12; the shaft sleeve 13 opens a notch at a position in front of the display dial 23 and fixedly connects a vertical pointer A24 in the radial direction beside the notch; the rotating shaft 14 fixedly connects a vertical pointer B25 in the radial direction at the notch of the shaft sleeve 13. The pointer B25 is attached to one side of the pointer A24, and both point to the zero scale line in the middle of the display dial 23; when measuring the bending degree of the wooden floor 31, the sum of the angles between the measuring rod A20 and the measuring rod B21 and the workbench 1 is the angle between the pointer A24 and the pointer B25, which is the bending degree of the measured wooden floor 31.

[0036] Among them, as Figure 1 shown, both sides of the rotating shaft 14 are placed in a placement groove 26. A vertical limit rod 27 is fixedly connected to the bottom of the placement groove 26. The limit rod 27 penetrates through a limit sleeve 28 to form a sliding connection. A horizontal pin hole is opened on the limit rod 27, and a fixing pin 29 is inserted into the pin hole; the limit sleeve 28 is fixedly connected to one side of the workbench 1 through a side support plate 30; when measuring the bending degree of the wooden floor 31, the fixing pin 29 is pulled out, and under the action of gravity, the angle measuring device freely falls along with the limit rod 27 until the measuring rod A20 and the measuring rod B21 form the smallest angle with the workbench 1 and the angle measuring device no longer falls. At this time, the angle between the pointer A24 and the pointer B25 on the display dial 23 is the bending degree of the wooden floor 31.

[0037] The specific usage method and function of this embodiment:

[0038] In the present utility model, the wooden floor 31 to be measured is placed on the workbench 1 with its convex surface facing upward. Rotate the rocking handle A8 to drive the bidirectional screw 5 to rotate through the bevel gear A6 and the bevel gear B7, so that the clamping plates 4 clamp both sides of the wooden floor 31. During this process, the wooden floor 31 is pushed by the clamping plates 4 to the center of the workbench 1, and the highest position of the wooden floor 31 is aligned directly below the rotation axis 14 of the angle measuring device. Pull out the limit pin 19 from the pin hole of the rocking handle B18. Under the action of gravity, the measuring rod A20 and the measuring rod B21 automatically droop around the axis of the rotation axis 14 and rotate by the same angle. Place the positioning shafts of the positioning sliding sleeves 22 in the slot holes of the measuring rod A20 and the measuring rod B21 in the positioning grooves 10 and insert the positioning pins 11 for limiting. The measuring rod A20 and the measuring rod B21 can rotate around the positioning shaft. At the same time, the positioning sliding sleeve 22 slides in the slot holes of the measuring rod A20 and the measuring rod B21. Pull out the fixing pin 29 in the limit rod 27. Under the action of gravity, the angle measuring device freely falls along with the limit rod 27. During this process, the included angle between the limit rod A20 and the limit rod B21 and the workbench 1 gradually decreases until the limit rod A20 and the limit rod B21 are tangent to both ends of the wooden floor 31. At this time, the included angle reaches the minimum value, and the angle measuring device no longer falls, and the included angle no longer changes. Read the included angle between the pointer A24 and the pointer B25 on the indicating dial 23, which is the degree of curvature of the wooden floor 31.

Claims

1. A wooden floor bending degree detection device, comprising a workbench (1); the workbench (1) is integrally rectangular, the bottom of the workbench (1) is supported on the ground by four support columns (2), a shaft connection bracket (9) is arranged in the middle at the bottom of the workbench (1), and vertical plates are arranged on the left and right sides at the bottom of the workbench (1), characterized in that: There are two guide rods (3) fixedly connected between the vertical plates on both sides of the workbench (1). A set of clamping plates (4) are inserted on both sides of each guide rod (3) to form a sliding connection. A bidirectional screw rod (5) is inserted near the bottom in the middle of the clamping plate (4) to form a threaded connection. Both ends of the bidirectional screw rod (5) are rotatably connected to the vertical plates of the workbench (1). A bevel gear A (6) is axially arranged in the middle of the bidirectional screw rod (5). A bevel gear B (7) is vertically engaged below the bevel gear A (6). A rocking handle A (8) is fixedly connected to the center of the bottom of the bevel gear B (7). The rotating shaft of the rocking handle A (8) passes through the shaft connection bracket (9) to form a rotating connection; A protractor device is arranged above the workbench (1). The protractor device includes a first connecting rod and a second connecting rod; The first connecting rod includes a tapered bushing (13), a bevel gear C (15) and a measuring rod A (20). One end of the bushing (13) is axially fixedly connected to the bevel gear C (15), and the other end is vertically fixedly connected to the measuring rod A (20); The second connecting rod includes a rotating shaft (14), a bevel gear D (16) and a measuring rod B (21). One side of the rotating shaft (14) is axially fixedly connected to the bevel gear D (16). The bevel gear D (16) faces the bevel gear C (15); The other side of the bevel gear D (16) is vertically fixedly connected to the measuring rod B (21); The rotating shaft (14) passes through the bushing (13) to form a rotating connection; A wooden floor (31) is placed above the workbench (1).

2. The wood floor curvature detection device according to claim 1, characterized in that: Square holes are opened on the left and right sides of the workbench (1); The clamping plate (4) passes through the square hole to reach above the workbench (1). A notch is opened in the middle of the top of the clamping plate (4). Positioning grooves (10) in the front-back direction are fixedly connected on both sides of the notch. Pin holes are opened on the left and right of the positioning groove (10), and positioning pins (11) are inserted through them.

3. The wood floor curvature detection device according to claim 2, wherein: Slot holes are opened on both sides of the measuring rod A (20) and the measuring rod B (21). Positioning sliding sleeves (22) are slidably connected to the outside of the measuring rod A (20) and the measuring rod B (21) through the slot holes for limiting. Positioning shafts are arranged in the horizontal direction on both sides of the positioning sliding sleeve (22). The radius of the positioning shaft is equal to the inner diameter of the positioning groove (10), and the top of the positioning shaft abuts against the lower side of the positioning pin (11).

4. The wood floor curvature detection device according to claim 1, characterized in that: A C-shaped frame (12) is inserted on the bushing (13) and the rotating shaft (14). The front and rear walls of the C-shaped frame (12) are located on both sides of the bevel gear C (15) and the bevel gear D (16). A bevel gear E (17) is meshed between the bevel gear C (15) and the bevel gear D (16). A rocking handle B (18) is fixedly connected to the center of one side of the bevel gear E (17). The rocking handle B (18) passes through the side wall of the C-shaped frame (12) to form a rotating connection.

5. The wood floor bending degree detecting device according to claim 4, wherein: A pin hole is opened on the rocking handle B (18); An insertion block is arranged on one side of the C-shaped frame (12); When the rocking handle B (18) is in a horizontal state, its pin hole and the insertion hole of the insertion block of the C-shaped frame (12) are on the same axis. A limit pin (19) is inserted into the pin hole and the insertion hole to limit the angle of the rocking handle B (18).

6. The bending degree detection device for a wooden floor according to claim 4, characterized in that: One side of the C-shaped frame (12) is fixedly connected with a display dial (23); a notch is opened at a position in front of the display dial (23) on the bushing (13), and a vertically-directional pointer A (24) is fixedly connected in the radial direction beside the notch; a vertically-directional pointer B (25) is fixedly connected in the radial direction at the notch of the bushing (13) on the rotating shaft (14), the pointer B (25) is attached to one side of the pointer A (24), and both of them point to the zero scale line in the middle of the display dial (23).

7. The wood floor bending degree detection device according to claim 1, wherein: Both sides of the rotating shaft (14) are placed in the placement groove (26), a vertically-directional limiting rod (27) is fixedly connected to the bottom of the placement groove (26), the limiting rod (27) is inserted into the limiting sleeve (28) to form a sliding connection, a horizontally-directional pin hole is opened on the limiting rod (27), and a fixing pin (29) is inserted into the pin hole; the limiting sleeve (28) is fixedly connected to one side of the workbench (1) through a side support plate (30).

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