Steel tape calibration device

Abstract

The utility model discloses a steel tape measure calibration device, which is applied in the field of steel tape measures. The utility model rotates a first motor to drive a rotating shaft to rotate a second bevel gear, and the second bevel gear rotates to drive the first bevel gear to rotate a screw rod, and the screw rotation causes a lifting plate to drive a support rod and a camera to move, and the support rod movement drives a baffle to close, so that the camera is moved into a protective shell for protection, which can achieve the purpose of protecting the camera shell, ensure the cleaning and calibration accuracy of the camera, and improve the service life. The utility model moves a pulling block, and the movement of the pulling block drives the movement of the clamping rod, and the movement of the clamping rod disengages the clamping rod from the adjusting hole, and then moves the fixing mechanism to a required position, releases the pulling block, and the clamping rod is clamped with the adjusting hole under the action of the first spring to fix the fixing mechanism, thereby achieving the purpose of adjusting the position of the fixing mechanism and improving applicability and practicality.

Description

Technical Field

[0001] The utility model relates to the field of steel tape measures, in particular to a steel tape measure calibration device. Background Art

[0002] At present, a Chinese utility model with announcement number CN220304414U discloses a steel tape measure calibration device, which includes: a calibration platform, a calibrator, a distance meter and two sets of steel tape measure installation components; the calibrator and the distance meter are slidably connected to the calibration platform, and the distance meter is used to detect the height of the steel tape measure on the calibration platform in order to install the steel tape measure; the two sets of steel tape measure installation components are connected to the calibration platform, and are respectively used to install a standard steel tape measure and a steel tape measure to be tested. The utility model installs the standard steel tape measure and the steel tape measure to be measured by two groups of identical steel tape measure installation components, so that the scale bars of the standard steel tape measure and the steel tape measure to be measured are pressed at the same position and laid to the same degree, thereby avoiding errors caused by bending and deformation of the steel tape measure and ensuring the accuracy of steel tape measure calibration; by arranging a hook box with a size similar to the scale bar opening of the steel tape measure and a chuck with a V-shaped groove with a rack, the scale bar of the steel tape measure can be horizontally and stably unfolded, so that the steel tape measure calibration device is suitable for steel tape measures of various specifications.

[0003] The existing calibration devices cannot protect the cameras. Generally, the cameras of the calibration devices are exposed. When not in use, a large amount of dust will adhere to the surface of the cameras. The dust will affect the imaging quality of the cameras, thereby reducing the detection accuracy and affecting the calibration structure. The exposed cameras are easily hit by external objects, which reduces the use effect. The position of the fixing mechanism cannot be adjusted. Generally, the fixing mechanisms of the calibration devices are installed at both ends of the test bench, and the fixing mechanisms are fixed to the surface of the test bench, which makes it difficult to adjust the fixing mechanisms. Therefore, only steel tape measures of a specific length can be calibrated, which reduces the applicability and practicality. Utility Model Content

[0004] The utility model aims to provide a steel tape measure calibration device, which has the advantages of being able to protect a camera and being able to adjust the position of a fixing mechanism.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] The steel tape measure calibration device comprises a base, a support frame is movably arranged on the base, a protective shell is bolted to the bottom of the support frame, a fixing plate is bolted to the inner wall of the protective shell, a screw is rotatably connected between the inner wall of the fixing plate and the inner wall of the protective shell, a first bevel gear is fixedly sleeved on the top of the screw, a second bevel gear is meshed on the surface of the first bevel gear, a rotating shaft is fixedly sleeved at the axis of the second bevel gear, one end of the rotating shaft is connected to a first motor through a coupling, and the first motor is bolted to the surface of the protective shell, a lifting plate is threadedly connected to the surface of the screw, a camera is bolted to the bottom of the lifting plate, a support rod is hinged on the surface of the lifting plate, a baffle is hinged on the other end of the support rod, and the baffle is slidably connected to the inner wall of the protective shell, a display screen is bolted to the surface of the support frame, a standard ruler is bolted to the top of the base, and a moving mechanism that can drive the support frame to move back and forth along the length direction of the base is provided on the top of the base;

[0007] A first sliding groove is provided on the top of the base, and a first slider is slidably connected to the inner wall of the first sliding groove. A fixing mechanism for fixing the steel tape measure is provided on the top of the first slider and the top of the base. A clamping rod is slidably sleeved on the inner wall of the first slider, and a limit plate is fixedly sleeved on the surface of the clamping rod. A first spring is provided between the limit plate and the inner wall of the first slider, and an adjustment hole is provided on the inner wall of the first sliding groove, and the adjustment hole is clamped with the clamping rod.

[0008] By adopting the above technical scheme, the first motor rotates to drive the rotating shaft to rotate the second bevel gear, and the second bevel gear rotates to drive the first bevel gear to rotate the screw, and the screw rotates to drive the lifting plate to drive the support rod and the camera to move, and the movement of the support rod drives the baffle to close, so that the camera is moved into the interior of the protective shell for protection. The purpose of the camera protective shell can be achieved, the accuracy of the camera cleaning and calibration is guaranteed, and the service life is improved. By moving the pull block, the movement of the pull block drives the movement of the clamping rod, and the movement of the clamping rod disengages the clamping rod from the adjusting hole, and then the fixing mechanism is moved to the required position, and the pull block is released. The clamping rod is clamped with the adjusting hole under the action of the first spring to fix the fixing mechanism, thereby achieving the purpose of adjusting the position of the fixing mechanism and improving applicability and practicality.

[0009] The utility model is further configured as follows: the moving mechanism includes a fixed block, the fixed block is bolted to the surface of the base, the surface of the fixed block is also bolted to a second motor, the output end of the second motor passes through the fixed block and is connected to a screw rod through a coupling, and the other end of the screw rod is rotatably connected to the surface of the fixed block, the surface of the screw rod is threadedly connected to a sliding block, and the sliding block is bolted to the bottom of the support frame.

[0010] By adopting the above technical solution, a moving mechanism is provided to move the camera, thereby facilitating detection and improving detection efficiency.

[0011] The utility model is further configured as follows: the fixing mechanism includes two fixing frames, the bottoms of the two fixing frames are respectively bolted to the base and the top of the first sliding block, the inner wall of the fixing frame is slidably sleeved with a pull rod, the bottom of the pull rod is bolted with a clamping block, and the surface of the pull rod is sleeved with a second spring.

[0012] By adopting the above technical solution and providing a fixing mechanism, it is convenient to fix the steel measuring tape.

[0013] The utility model is further configured as follows: a fill light is bolted to the bottom of the lifting plate.

[0014] By adopting the above technical solution and setting a fill light, the accuracy of detection is improved.

[0015] The utility model is further configured as follows: scale lines are printed on the surface of the base.

[0016] By adopting the above technical solution and setting scale lines, it is convenient to accurately adjust the position of the fixing bracket on the first sliding block.

[0017] The utility model is further configured as follows: a pull block is bolted on the top of the clamping rod.

[0018] By adopting the above technical solution and arranging the pull block, the clamping rod can be easily moved and used.

[0019] The utility model is further configured as follows: a second sliding block is bolted to the bottom of the sliding block, a second sliding groove is slidably connected to the surface of the second sliding block, and the second sliding groove is opened on the top of the base.

[0020] By adopting the above technical solution, the second sliding groove and the second sliding block are provided to prevent the sliding block from deflecting and ensure stability.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. The utility model achieves the purpose of protecting the camera by rotating the first motor to drive the second bevel gear to rotate, the second bevel gear rotates to drive the first bevel gear to rotate the screw, the screw rotates to drive the lifting plate to drive the support rod and the camera to move, the support rod moves to drive the baffle to close, and the camera moves into the protective shell for protection, thereby ensuring the cleaning and calibration accuracy of the camera and prolonging its service life;

[0023] 2. The utility model moves the pulling block, and the movement of the pulling block drives the movement of the clamping rod, and the movement of the clamping rod disengages the clamping rod from the adjusting hole, and then moves the fixing frame on the first slider to a required position, releases the pulling block, and the clamping rod is clamped with the adjusting hole under the action of the first spring, and fixes the fixing frame on the first slider at the current position, thereby meeting the calibration requirements of steel tape measures of different lengths and improving applicability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0025] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0026] Figure 3 It is a partial structural cross-sectional view of the utility model;

[0027] Figure 4 It is a rear cross-sectional view of the structure of the utility model;

[0028] Figure 5 This utility model Figure 4 A magnified view of the structure in the middle.

[0029] 1. The camshaft includes the first and second gears, the ... DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] Embodiment 1:

[0032] refer to Figure 1 , Figure 2 and Figure 3The steel tape measure calibration device comprises a base 1, on which a support frame 3 is movably arranged, a protective shell 4 is bolted to the bottom of the support frame 3, a fixing plate 5 is bolted to the inner wall of the protective shell 4, a screw 6 is rotatably connected between the inner wall of the fixing plate 5 and the inner wall of the protective shell 4, a first bevel gear 7 is fixedly sleeved on the top of the screw 6, a second bevel gear 8 is meshed on the surface of the first bevel gear 7, a rotating shaft 9 is fixedly sleeved at the axis of the second bevel gear 8, one end of the rotating shaft 9 is connected to a first motor 10 through a coupling, and the first motor 10 is bolted to the surface of the protective shell 4, a lifting plate 11 is threadedly connected to the surface of the screw 6, a camera 12 is bolted to the bottom of the lifting plate 11, a support rod 13 is hinged to the surface of the lifting plate 11, a baffle 14 is hinged to the other end of the support rod 13, and the baffle 14 is slidably connected to the inner wall of the protective shell 4, a display screen 15 is bolted to the surface of the support frame 3, and a standard ruler 16 is bolted to the top of the base 1.

[0033] The top of the base 1 is provided with a

[0034] The first motor 10 rotates to cause the rotating shaft 9 to drive the second bevel gear 8 to rotate, and the second bevel gear 8 rotates to cause the first bevel gear 7 to drive the screw 6 to rotate, and the screw 6 rotates to cause the lifting plate 11 to drive the support rod 13 and the camera 12 to move, and the movement of the support rod 13 drives the baffle 14 to close, so that the camera 12 is moved into the protective shell 4 for protection. The purpose of protecting the camera 12 from the protective shell 4 can be achieved, the cleaning and calibration accuracy of the camera 12 is guaranteed, and the service life is improved.

[0035] refer to Figure 1 and Figure 2 The moving mechanism 2 includes a fixed block 24, which is bolted to the surface of the base 1. The surface of the fixed block 24 is also bolted with a second motor 25. The output end of the second motor 25 passes through the fixed block 24 and is connected to a screw rod 26 through a coupling, and the other end of the screw rod 26 is rotatably connected to the surface of the fixed block 24. The surface of the screw rod 26 is threadedly connected to a sliding block 27, and the sliding block 27 is bolted to the bottom of the support frame 3. By setting the moving mechanism 2, the camera 12 can be moved to facilitate detection and improve detection efficiency.

[0036] refer to Figure 3 A fill light 32 is bolted to the bottom of the lifting plate 11. By setting the fill light 32, the accuracy of detection is improved.

[0037] refer to Figure 2 A second slider 35 is bolted to the bottom of the sliding block 27, and a second slide groove 36 is slidably connected to the surface of the second slider 35, and the second slide groove 36 is opened at the top of the base 1. By setting the second slide groove 36 and the second slider 35, the sliding block 27 is prevented from deflecting and stability is ensured.

[0038] Embodiment 2:

[0039] refer to Figure 1 , Figure 4 and Figure 5 A first slide groove 17 is provided at the top of the base 1, and a first slider 18 is slidably connected to the inner wall of the first slide groove 17. A fixing mechanism 19 is provided at the top of the first slider 18 and the top of the base 1. A clamping rod 20 is slidably sleeved on the inner wall of the first slider 18. A limiting plate 21 is fixedly sleeved on the surface of the clamping rod 20. A first spring 22 is provided between the limiting plate 21 and the inner wall of the first slider 18. An adjusting hole 23 is provided on the inner wall of the first slide groove 17, and the adjusting hole 23 is clamped with the clamping rod 20.

[0040] By moving the pull block 34, the movement of the pull block 34 drives the clamping rod 20 to move, and the movement of the clamping rod 20 disengages the clamping rod 20 from the adjustment hole 23, and then the fixing frame 28 on the first slider 18 is moved to the required position, and the pull block 34 is released. The clamping rod 20 is clamped with the adjustment hole 23 under the action of the first spring 22, and the fixing frame 28 on the first slider 18 is fixed at the current position, thereby meeting the calibration requirements of steel tape measures of different lengths and improving applicability and practicality.

[0041] refer to Figure 5 The fixing mechanism 19 includes a fixing frame 28, the bottom of the fixing frame 28 is bolted to the base 1 and the top of the first slider 18 respectively, the inner wall of the fixing frame 28 is slidably sleeved with a pull rod 29, the bottom of the pull rod 29 is bolted with a clamping block 30, and the surface of the pull rod 29 is sleeved with a second spring 31. By setting the fixing mechanism 19, it is convenient to install and disassemble the steel tape measure.

[0042] refer to Figure 1 The surface of the base 1 is printed with scale lines 33 , and by setting the scale lines 33 , it is convenient to adjust the position of the fixing mechanism 19 .

[0043] refer to Figure 5 A pull block 34 is bolted to the top of the clamping rod 20. By setting the pull block 34, the clamping rod 20 is easy to move and easy to use.

[0044] A brief description of the use process: the first motor 10 rotates to drive the rotating shaft 9 to rotate, the rotating shaft 9 rotates to drive the second bevel gear 8 to rotate, the second bevel gear 8 rotates to drive the first bevel gear 7 to rotate, the first bevel gear 7 rotates to drive the screw 6 to rotate, the screw 6 rotates to make the lifting plate 11 drive the support rod 13 and the camera 12 to move, the support rod 13 moves to drive the baffle 14 to close, so that the camera 12 moves into the protective shell 4 for protection. After use, the first motor 10 is reversed, the lifting plate 11 moves to drive the support rod 13 to move to open the baffle 14, and the camera 12 moves out of the protective shell 4 for use, which can achieve the purpose of protecting the camera 12 from the shell 4;

[0045] Move the pull block 34, and the movement of the pull block 34 drives the clamping rod 20 to move. The movement of the clamping rod 20 disengages the clamping rod 20 from the adjusting hole 23, and then moves the fixing frame 28 on the first slider 18 to the required position, releases the pull block 34, and the clamping rod 20 is clamped with the adjusting hole 23 under the action of the first spring 22, and fixes the fixing frame 28 on the first slider 18 at the current position, thereby meeting the calibration requirements of steel tape measures of different lengths and improving applicability and practicality.

Claims

1. A steel tape measure calibration device, comprising a base (1), characterized in that: A support frame (3) is movably arranged on the base (1), a protective shell (4) is bolted to the bottom of the support frame (3), a fixing plate (5) is bolted to the inner wall of the protective shell (4), a screw (6) is rotatably connected between the inner wall of the fixing plate (5) and the inner wall of the protective shell (4), a first bevel gear (7) is fixedly sleeved on the top of the screw (6), a second bevel gear (8) is meshed on the surface of the first bevel gear (7), a rotating shaft (9) is fixedly sleeved at the axis of the second bevel gear (8), one end of the rotating shaft (9) is connected to a first motor (10) via a coupling, and the first motor (10) and the protective shell (4) are rotatably connected. The surface of the protective shell (4) is bolted, the surface of the screw rod (6) is threadedly connected to a lifting plate (11), the bottom of the lifting plate (11) is bolted to a camera (12), the surface of the lifting plate (11) is hinged to a support rod (13), the other end of the support rod (13) is hinged to a baffle (14), and the baffle (14) is slidably connected to the inner wall of the protective shell (4), the surface of the support frame (3) is bolted to a display screen (15), the top of the base (1) is bolted to a standard ruler (16), and the top of the base (1) is provided with a moving mechanism (2) capable of driving the support frame (3) to move back and forth along the length direction of the base (1).

2. The steel tape measure calibration device according to claim 1, characterized in that: A first slide groove (17) is provided on the top of the base (1), and a first slider (18) is slidably connected to the inner wall of the first slide groove (17), and a fixing mechanism (19) for fixing the steel tape measure is provided on the top of the first slider (18) and the top of the base (1), and a clamping rod (20) is slidably sleeved on the inner wall of the first slider (18), and a limit plate (21) is fixedly sleeved on the surface of the clamping rod (20), and a first spring (22) is provided between the limit plate (21) and the inner wall of the first slider (18), and an adjustment hole (23) is provided on the inner wall of the first slide groove (17), and the adjustment hole (23) is clamped with the clamping rod (20).

3. The steel tape measure calibration device according to claim 1, characterized in that: The moving mechanism (2) comprises a fixed block (24), the fixed block (24) is bolted to the surface of the base (1), the surface of the fixed block (24) is also bolted with a second motor (25), the output end of the second motor (25) passes through the fixed block (24) and is connected to a screw rod (26) through a coupling, and the other end of the screw rod (26) is rotatably connected to the surface of the fixed block (24), the surface of the screw rod (26) is threadedly connected to a sliding block (27), and the sliding block (27) is bolted to the bottom of the support frame (3).

4. The steel tape measure calibration device according to claim 2, characterized in that: The fixing mechanism (19) comprises two fixing frames (28), the bottoms of the two fixing frames (28) are bolted to the base (1) and the top of the first slider (18) respectively, the inner wall of the fixing frame (28) is slidably sleeved with a pull rod (29), the bottom of the pull rod (29) is bolted with a clamping block (30), and the surface of the pull rod (29) is sleeved with a second spring (31).

5. The steel tape measure calibration device according to claim 1, characterized in that: A fill light (32) is bolted to the bottom of the lifting plate (11).

6. The steel tape measure calibration device according to claim 1, characterized in that: The surface of the base (1) is printed with scale lines (33).

7. The steel tape measure calibration device according to claim 2, characterized in that: A pull block (34) is bolted to the top of the clamping rod (20).

8. The steel tape measure calibration device according to claim 3, characterized in that: A second sliding block (35) is bolted to the bottom of the sliding block (27), a second sliding groove (36) is slidably connected to the surface of the second sliding block (35), and the second sliding groove (36) is opened on the top of the base (1).

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