Easy-to-use steel tape measure calibration device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN BISON TAPE CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-03
Smart Images
Figure CN224455589U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steel tape measure calibration technology, specifically a steel tape measure calibration device that is easy to operate. Background Technology
[0002] Steel measuring tapes can be divided into self-winding measuring tapes, brake measuring tapes, and rotary measuring tapes. They are tools for measuring the dimensions or distances of longer workpieces and are commonly used measuring tools in daily life. The most common type is the steel measuring tape, which is frequently used in construction and decoration and is also one of the essential tools in the home.
[0003] During the production and processing of steel tape measures, a specific calibration device is often required to conduct factory testing. When using the calibration device, the standard ruler is first fixed on the calibration device and weights are fixed in place. Then, the tape measure to be tested is fixed on the calibration device, aligned with the position of the standard ruler, and weights are fixed in place. The calibration is then performed by observation under a microscope.
[0004] Since the standard rulers and steel tape measures are usually in a curled state after production, when operators fix the standard rulers and steel tape measures on the frame of the calibration device or remove them from the frame, they need to manually pull the steel tape measure to lay it flat on the frame of the calibration device after fixing the zero end of the tape measure. When removing the steel tape measure, it is also necessary to manually rewind the tape measure. This takes too long, and the edges of the steel tape measure are relatively sharp, which can easily scratch the operator's hands during placement and rewinding. This results in low efficiency and practicality of the calibration device. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To overcome the aforementioned shortcomings of the prior art, this utility model provides a convenient steel tape measure calibration device. It solves the problem that standard rulers and steel tape measures are usually in a curled state after production. When operators fix the standard rulers and steel tape measures on or remove them from the calibration device's frame, they need to manually pull the steel tape measure to flatten it after fixing the zero end. Similarly, when removing the steel tape measure, manual winding is required, which is time-consuming. Furthermore, the sharp edges of the steel tape measure can easily scratch the operator's hands during placement and winding, resulting in low efficiency and practicality of the calibration device.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a convenient steel tape measure calibration device, comprising a frame rod, a slide block slidably disposed at the top of the frame rod, a microscope disposed on one side of the slide block, two sets of clamping devices disposed on one side of the top of the frame rod, each clamping device comprising a clamping block and a second lead screw, one side of the clamping block being rotatably connected to one end of the second lead screw, the second lead screw being threadedly connected to one side of the top of the frame rod, a first lead screw being threadedly connected to the top of the inner wall of the clamping block, a pressure block being rotatably connected to the bottom end of the first lead screw, a rectangular groove being formed on the outer surface of the clamping block, one side of the pressure block sliding on the inner wall of the rectangular groove, and an auxiliary device for assisting the steel tape measure in retraction and extension being disposed at the top of the frame rod away from the clamping devices.
[0009] As a further embodiment of this utility model: the auxiliary device includes a slider, a groove is provided on one side of the top of the support rod, one end of the slider slides on the inner wall of the groove, two round rods are fixedly connected to one side of the slider, an operating block is slidably connected to the outer surface of the round rod, a slot is rotatably connected to one side of the surface of the operating block, a slot is provided on one side of the slot, a sliding rod is provided on the side of the operating block away from the slot, a through groove is provided on the outer surface of the sliding rod, a spring is provided on the outer surface of the sliding rod, a round block is rotatably connected to one side of the operating block, the two ends of the spring are fixedly connected to one side of the sliding rod and one side of the round block respectively, the sliding rod can rotate and slide inside the operating block, a screw is threadedly connected to one side of the inner wall of the sliding rod, a clamp is rotatably connected to one end of the screw, and one end of the clamp slides on the inner wall of the through groove on the outer surface of the sliding rod.
[0010] As a further embodiment of this utility model: a plurality of protruding strips are fixedly connected to one side of the clamping piece, and the protruding strips are rubber strips made of rubber material.
[0011] As a further embodiment of this utility model: an anti-slip plate is provided at one end of the slide rod near the groove block, and the surface of the anti-slip plate is provided with several anti-slip protrusions.
[0012] As a further embodiment of this utility model: one end of the slide rod is fixedly connected to a groove rod, and the outer surface of the groove rod is provided with several arc-shaped grooves.
[0013] As a further embodiment of this utility model: a storage device is provided on one side of the slider, the storage device includes a storage box, the storage box is fixed on one side of the slider, the storage box has a placement slot inside, and a cover plate is rotatably connected to one side of the top of the storage box.
[0014] As a further embodiment of this utility model: a support rod is fixedly connected to one side of the top of the storage box, and the end of the support rod away from the storage box is fixedly connected to one side of the slider.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. This steel tape measure calibration device, by setting an auxiliary device, fixes the end of the tape measure to be inspected or the standard tape measure away from the clamping block to the outside of the slide rod on the outer surface of the operating block. By moving the position of the operating block, the rolled tape measure can be quickly released or the slide rod can be rotated to rewind the tape measure while moving the operating block, which greatly improves the efficiency of placing and rewinding the tape measure.
[0018] 2. This steel tape measure calibration device, by fixing the tape measure on the operating block, eliminates the need for operators to hold the tape measure to unwind or store it, reducing the number of times the operator's hands come into direct contact with the tape measure surface, lowering the risk of being scratched by the tape measure, and improving the practicality of the calibration device.
[0019] 3. This steel tape measure calibration device has a storage device. After the calibration device is used, the standard ruler and weights can be placed in the slot inside the storage box. Pushing the cover plate to rotate at the top of the storage box can close the storage box, which makes it easy to store the standard ruler and weights and convenient to retrieve them when using the calibration device next time, thus improving the convenience of using the calibration device. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the structure of the support pole of this utility model;
[0022] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A;
[0023] Figure 4 This is a schematic diagram of the slider part of this utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the operating block of this utility model;
[0025] Figure 6 This is a partial cross-sectional structural diagram of the slide bar of this utility model.
[0026] In the diagram: 1. Frame; 2. Auxiliary device; 3. Storage device; 4. Slide; 5. Microscope; 6. Clamping device; 21. Slide groove; 22. Slider; 23. Round rod; 24. Operating block; 25. Groove block; 26. Slot; 27. Slide rod; 28. Spring; 29. Round block; 210. Screw; 211. Clamping piece; 212. Raised strip; 213. Anti-slip piece; 214. Groove rod; 31. Storage box; 32. Placement groove; 33. Cover plate; 34. Support rod; 61. Clamping block; 62. First lead screw; 63. Rectangular groove; 64. Second lead screw; 65. Pressure block. Detailed Implementation
[0027] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0028] like Figure 1-6 As shown, this utility model provides a technical solution: a convenient steel tape measure calibration device, including a frame rod 1, a slide block 4 slidably disposed at the top of the frame rod 1, a microscope 5 disposed on one side of the slide block 4, and two sets of clamping devices 6 disposed on one side of the top of the frame rod 1. The clamping device 6 includes a clamping block 61 and a second lead screw 64. One side of the clamping block 61 is rotatably connected to one end of the second lead screw 64. The second lead screw 64 is threadedly connected to one side of the top of the frame rod 1. A first lead screw 62 is threadedly connected to the top of the inner wall of the clamping block 61. A pressure block 65 is rotatably connected to the bottom end of the first lead screw 62. A rectangular groove 63 is opened on the outer surface of the clamping block 61. One side of the pressure block 65 slides on the inner wall of the rectangular groove 63. An auxiliary device 2 is disposed at the top of the frame rod 1 away from the clamping device 6 to assist in the retraction and extension of the steel tape measure.
[0029] Specifically, such as Figure 2-6As shown, the auxiliary device 2 includes a slider 22. A groove 21 is provided on one side of the top of the support rod 1. One end of the slider 22 slides along the inner wall of the groove 21. Two round rods 23 are fixedly connected to one side of the slider 22. An operating block 24 is slidably connected to the outer surface of the round rods 23. A slot block 25 is rotatably connected to one side of the surface of the operating block 24. A slot 26 is provided on one side of the slot block 25. A sliding rod 27 is provided on the side of the operating block 24 away from the slot block 25. A through groove is provided on the outer surface of the sliding rod 27. A spring 28 is provided on the outer surface of the sliding rod 27. A round block 29 is rotatably connected to one side of the operating block 24. The two ends of the spring 28 are fixedly connected to one side of the sliding rod 27 and one side of the round block 29, respectively. The sliding rod 27 can rotate and slide inside the operating block 24. A screw 210 is threaded onto one side of the inner wall of rod 27. One end of screw 210 is rotatably connected to a clamp 211. One end of clamp 211 slides on the inner wall of a groove on the outer surface of slide rod 27. By setting clamp 211, when using the calibration device, first place one end of the standard ruler inside the groove 21 on the outer surface of a clamp block 61 at the top of the support rod 1. After adjusting the position, rotate the first lead screw 62 at the top of clamp block 61 to control the first lead screw 62 to move downward on the top of the inner wall of clamp block 61, pushing the pressure block 65 downward in the rectangular groove 63, pressing the bottom end of the pressure block 65 against the surface of the standard ruler. Then, push the slider 22 to move and adjust the position of the two round rods 23 and the operating block 24 on the inner wall of the groove 21, and push the operating block 24 to move in the groove 23. The outer surface of the slide bar moves towards the clamping block 61. Then, the slide bar 27 is pulled to move away from the operating block 24. The rolled-up portion of the standard ruler is placed on the operating block 24, and the other end, away from the standard ruler and clamping block 61, is adjusted. The slide bar 27 is then moved so that the groove on its outer surface engages with both sides of the other end of the standard ruler and enters the slot 26 on one side of the slot block 25. The spring 28 secures the other end of the slide bar 27 within the slot 26. Then, the screw 210 on one side of the slide bar 27 is rotated to move the screw 210 along the inner wall of the slide bar 27, pushing the clamping piece 211 to clamp the other end of the standard ruler onto its outer surface. This fixes both ends of the standard ruler to the clamping block 61 and the operating block 24 respectively. Finally, the operating block 24 is pushed... 4. Move away from clamping block 61. During the movement, the rolled standard ruler will be unwound by the rotation of groove block 25 and slide bar 27. Since the spring 28 on the outer surface of slide bar 27 is connected to one side of round block 29, it will not affect the rotation of slide bar 27. When the operating block 24 moves to the end of the support rod 1 away from clamping block 61, rotate screw 210 on one side of slide bar 27 to control clamp plate 211 away from the outer surface of standard ruler. Then pull slide bar 27 away from groove block 25 and compress spring 28 to pull out standard ruler. Then place the end of standard ruler away from clamping block 61 on the top of support rod 1 and hang a weight of appropriate weight on the hanging outer surface. Then fix the ruler to be inspected to the top of support rod 1 in the same way. After fixing,Push slider 22 to move it to the side of the support rod 1, away from directly above the support rod 1. Rotate the second screw 64 at one end of clamp 61 to control the second screw 64 to move clamp 61 horizontally and adjust the zero position of the standard ruler and the ruler to be inspected to align. Then, perform a detailed observation and comparison through the microscope 5 on the outer surface of the slide block 4, and push the slide block 4 to adjust the position of the microscope 5 to compare the scale lines on the entire surface of the ruler to be inspected and the standard ruler. After the comparison is completed, remove the weight fixed at one end of the ruler to be inspected, and then move slider 22 to directly above the support rod 1. Pass the end of the ruler to be inspected away from clamp 61 through the through groove on the outer surface of slide rod 27 from the top of slide rod 27, and then rotate screw 210 to control clamp 211 to move and clamp. Then, push operating block 24 to move towards clamp 61 on the outer surface of round rod 23, and move it to the side of clamp 61. During the operation of the operating block 24, rotating the slide bar 27 controls the rotation of the slide bar 27 and the groove block 25 to rewind the measuring tape to be inspected. After the measuring tape to be inspected is rewound, the standard measuring tape is rewound in the same way. By setting the auxiliary device 2, the end of the measuring tape to be inspected or the standard measuring tape away from the clamping block 61 is fixed to the outside of the slide bar 27 on the outer surface of the operating block 24. By moving the position of the operating block 24, the rolled measuring tape can be quickly released or the slide bar 27 can be rotated to rewind the measuring tape while moving the operating block 24, which greatly improves the efficiency of placing and rewinding the measuring tape. By setting the measuring tape to be fixed on the operating block 24, it is not necessary for the operator to hold the measuring tape to unwind or store it, reducing the number of times the operator's hands come into direct contact with the surface of the measuring tape, reducing the risk of being scratched by the measuring tape, and improving the practicality of the calibration device.
[0030] Specifically, such as Figure 2-6 As shown, a number of protrusions 212 are fixedly connected to one side of the clamping piece 211. The protrusions 212 are made of rubber. By setting the protrusions 212, the side of the clamping piece 211 with the protrusions 212 is pressed more tightly against the outer surface of the measuring tape, making it less likely for the measuring tape to slip out between the clamping piece 211 and the sliding rod 27. An anti-slip piece 213 is provided at the end of the sliding rod 27 near the groove block 25. The surface of the anti-slip piece 213 is provided with a number of anti-slip protrusions. By setting the anti-slip piece 213, the friction between the sliding rod 27 and the inner wall of the groove 26 when the end of the sliding rod 27 is inserted into the groove 26 is increased, making it less likely for the end of the sliding rod 27 to accidentally slip out of the groove 26 when it is inserted into the groove 26 on one side of the groove block 25.
[0031] Specifically, such as Figure 2-6 As shown, one end of the slide rod 27 is fixedly connected to the groove rod 214. The outer surface of the groove rod 214 is provided with several arc-shaped grooves. By pinching the arc-shaped grooves on the outer surface of the groove rod 214, it is easier to pull the slide rod 27 to move or control the slide rod 27 to rotate.
[0032] Specifically, such as Figure 1 , Figure 2 and Figure 4As shown, a storage device 3 is provided on one side of the slider 22. The storage device 3 includes a storage box 31, which is fixed to one side of the slider 22. The storage box 31 has a placement slot 32 inside. A cover plate 33 is rotatably connected to the top side of the storage box 31. After the calibration device is used, the standard ruler and weights can be placed in the placement slot 32 inside the storage box 31. Pushing the cover plate 33 to rotate the top of the storage box 31 can close the storage box 31, which is convenient for storing the standard ruler and weights and for easy retrieval when using the calibration device next time, thus improving the convenience of using the calibration device. A support rod 34 is fixedly connected to the top side of the storage box 31. The end of the support rod 34 away from the storage box 31 is fixedly connected to one side of the slider 22. By setting the support rod 34, the connection between the storage box 31 and the slider 22 can be reinforced, thereby improving the structural stability of the connection between the storage box 31 and the slider 22.
[0033] The working principle of this utility model is as follows:
[0034] S1. When using the calibration device, first place one end of the standard ruler inside the groove 21 on the outer surface of a clamping block 61 at the top of the support rod 1. After adjusting the position, rotate the first lead screw 62 at the top of the clamping block 61 to control the first lead screw 62 to move downward on the inner wall of the clamping block 61, pushing the pressure block 65 downward in the rectangular groove 63, pressing the bottom end of the pressure block 65 firmly against the surface of the standard ruler. Then, push the slider 22 to move along the inner wall of the groove 21 to adjust the position of the two round rods 23 and the operating block 24, push the operating block 24 to move in the direction of the outer surface of the round rod 23 towards the clamping block 61, and then pull the sliding rod 27 to control the sliding block 61. The lever 27 is moved away from the operating block 24, placing the rolled-up portion of the standard ruler on the operating block 24 and adjusting the position of the other end away from the standard ruler and clamping block 61. Then, the slide lever 27 is moved so that the through groove on the outer surface of the slide lever 27 is engaged with both sides of the other end of the standard ruler and enters the slot 26 on one side of the slot block 25. The spring 28 can be used to tighten the position of the other end of the slide lever 27 inside the slot 26. Then, the screw 210 on one side of the slide lever 27 is rotated to control the screw 210 to move on the inner wall of the slide lever 27, pushing the clamping piece 211 to clamp the outer surface of the other end of the standard ruler, thus fixing both ends of the standard ruler to the clamping block 61. At block 61 and operating block 24, the operating block 24 is then pushed to move away from clamping block 61. During the movement, the rolled standard ruler is unwound by the rotation of slot block 25 and slide bar 27. Since the spring 28 on the outer surface of slide bar 27 is connected to one side of round block 29, it will not affect the rotation of slide bar 27. When the operating block 24 moves to the end of the support rod 1 away from clamping block 61, the screw 210 is rotated on one side of slide bar 27 to control the clamping piece 211 to move away from the outer surface of the standard ruler. Then, the slide bar 27 is pulled to move away from slot block 25 and compress spring 28, thus pulling out the standard ruler. One end away from the clamp 61 rests on the top of the support rod 1, and a weight of appropriate weight is hung on the outer surface of the hanging weight. Then, the ruler to be inspected is fixed to the top of the support rod 1 in the same way. After fixing, the slider 22 is pushed to move to the side of the support rod 1 away from the top of the support rod 1. The second screw 64 at one end of the clamp 61 is rotated to control the second screw 64 to drive the clamp 61 to move horizontally and adjust the zero position of the standard ruler and the ruler to be inspected to align. Then, a fine observation and comparison is made through the microscope 5 on the outer surface of the slide 4, and the slide 4 is pushed to move and adjust the position of the microscope 5 to compare the scale lines on the entire surface of the ruler to be inspected and the standard ruler.
[0035] S2. After the calibration is completed, remove the weight fixed at one end of the ruler to be inspected, and then move the slider 22 to the position directly above the support rod 1. Pass the end of the ruler to be inspected away from the clamping block 61 through the through groove on the outer surface of the slider 27 from the top of the slider 27. Then rotate the screw 210 to control the movement of the clamping piece 211 to clamp it. Then push the operating block 24 to move in the direction of the outer surface of the round rod 23 towards the clamping block 61. While moving the operating block 24, rotate the slider 27 to control the slider 27 and the groove block 25 to rotate and rewind the ruler to be inspected. After the ruler to be inspected is rewinded, rewind the standard ruler in the same way.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A steel tape testing device for easy operation, comprising a frame rod (1), characterized in that: A slide block (4) is slidably provided at the top of the support rod (1). A microscope (5) is provided on one side of the slide block (4). Two sets of clamping devices (6) are provided on one side of the top of the support rod (1). The clamping device (6) includes a clamping block (61) and a second lead screw (64). One side of the clamping block (61) is rotatably connected to one end of the second lead screw (64). The second lead screw (64) is threadedly connected to one side of the top of the support rod (1). A first lead screw (62) is threadedly connected to the top of the inner wall of the clamping block (61). A pressure block (65) is rotatably connected to the bottom end of the first lead screw (62). A rectangular groove (63) is opened on the outer surface of the clamping block (61). One side of the pressure block (65) slides on the inner wall of the rectangular groove (63). An auxiliary device (2) is provided at the top of the support rod (1) away from the clamping device (6) to assist the steel tape measure in retraction and extension.
2. The conveniently operable tape measure testing device of claim 1, wherein: The auxiliary device (2) includes a slider (22). A groove (21) is provided on one side of the top end of the support rod (1). One end of the slider (22) slides on the inner wall of the groove (21). Two round rods (23) are fixedly connected to one side of the slider (22). An operating block (24) is slidably connected to the outer surface of the round rods (23). A slot block (25) is rotatably connected to one side of the surface of the operating block (24). A slot (26) is provided on one side of the slot block (25). A slide rod (27) is provided on the side of the operating block (24) away from the slot block (25). The outer surface of the slide rod (27) is provided with a through groove. The outer surface of the slide rod (27) is provided with a spring (28). A round block (29) is rotatably connected to one side of the operating block (24). The two ends of the spring (28) are fixedly connected to one side of the slide rod (27) and one side of the round block (29), respectively. The slide rod (27) can rotate and slide inside the operating block (24). A screw (210) is threadedly connected to one side of the inner wall of the slide rod (27). A clamp (211) is rotatably connected to one end of the screw (210). One end of the clamp (211) slides on the inner wall of the through groove on the outer surface of the slide rod (27).
3. The conveniently operable tape measure testing apparatus of claim 2, wherein: A plurality of protruding strips (212) are fixedly connected to one side of the clip (211), and the protruding strips (212) are rubber strips made of rubber.
4. The conveniently operable tape measure testing apparatus of claim 3, wherein: The slide bar (27) is provided with an anti-slip plate (213) at one end near the groove block (25), and the surface of the anti-slip plate (213) is provided with several anti-slip protrusions.
5. The conveniently operable tape measure testing device of claim 4, wherein: One end of the slide rod (27) is fixedly connected to a groove rod (214), and the outer surface of the groove rod (214) is provided with several arc-shaped grooves.
6. The conveniently operable tape measure testing device of claim 2, wherein: A storage device (3) is provided on one side of the slider (22). The storage device (3) includes a storage box (31). The storage box (31) is fixed on one side of the slider (22). A placement slot (32) is provided inside the storage box (31). A cover plate (33) is rotatably connected to one side of the top of the storage box (31).
7. The conveniently operable tape measure testing device of claim 6, wherein: A support rod (34) is fixedly connected to one side of the top of the storage box (31), and the end of the support rod (34) away from the storage box (31) is fixedly connected to one side of the slider (22).