Novel steel tape tensioning force loading and unloading device
By designing a new type of steel tape measure tension loading and unloading device, the automatic loading and unloading of weights was realized, solving the problems of high labor intensity and missed unloading during manual operation, and improving the detection efficiency and the level of equipment intelligence.
Patent Information
- Application Number
- CN202522098367.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2035-09-29
AI Technical Summary
In the current measurement and testing process of steel tape measures, the manual loading and unloading of weights is labor-intensive, inefficient, and prone to missing the unloading of standard steel tape measures, thus shortening their service life.
A novel steel tape measure tension loading and unloading device is designed, comprising a standard and a tested steel tape measure loading and unloading mechanism. The automatic loading and unloading of weights is achieved through an electric piston and a lifting mechanism, and the entire process is controlled by a control button.
It improves the efficiency of steel tape measure inspection, reduces manual labor, avoids the omission of standard steel tape measures, extends their service life, and promotes the development of inspection equipment towards intelligence and automation.
Smart Images

Figure CN223538224U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metrology and testing technology, specifically a novel tension loading and unloading device for steel tape measures. It aims to improve the efficiency of tension loading and unloading during the metrology and testing of steel tape measures, reduce manual labor, and, through consistent operation of tension loading and unloading of the standard steel tape measure and the steel tape measure under test, avoid omissions in the standard steel tape measure when removing the steel tape measure under test, ensuring the completion of tension unloading of the standard steel tape measure and extending its service life. Background Technology
[0002] The metrological testing process for steel measuring tapes involves first placing a standard steel measuring tape and the measuring tape under test parallel to each other. Then, 5kg weights are attached to the ends of both tapes to apply tension. Next, the zero marks at the beginning of both tapes are aligned, and the scale error values at corresponding points are read using a reading microscope. In large-scale steel measuring tape metrological testing, repeated manual addition and removal of weights to apply and release tension on both tapes is labor-intensive. Furthermore, it is common practice that when removing the measuring tape under test after testing, only the weights are removed, while the weights on the standard tape are forgotten. This results in the standard tape being under constant stress, shortening its lifespan. Utility Model Content
[0003] The purpose of this utility model is to provide a new type of steel tape measure tensioning and unloading device to solve the problems of high labor intensity, low work efficiency, and easy omission of unloading the tension of standard steel tape measures in the existing process of manually applying tension by hanging weights.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model for a novel steel tape measure tensioning and unloading device is as follows:
[0005] A novel steel tape measure tension loading and unloading device includes a standard steel tape measure loading and unloading mechanism, a steel tape measure under test loading and unloading mechanism, and a control button. The control button is connected to the standard steel tape measure loading and unloading mechanism and the steel tape measure under test loading and unloading mechanism via cables. The standard steel tape measure loading and unloading mechanism includes a lifting mechanism and an L-shaped base plate. The lifting mechanism is fixed on the L-shaped base plate. The steel tape measure under test loading and unloading mechanism includes a lifting mechanism, a bottom connecting plate, and a support column. The lifting mechanism is fixed on the bottom connecting plate, and the bottom connecting plate is connected to the support column.
[0006] The lifting mechanism consists of a guide rail, a slider, a connecting plate, a tray, and an electric piston. The slider is mounted on the guide rail. One end of the connecting plate is connected to the slider, and the other end is connected to the tray. The tray is connected to the electric piston, and the tray moves linearly along the guide rail following the extension and retraction of the electric piston.
[0007] Preferably, the L-shaped base plate in the standard steel tape measure loading and unloading mechanism is fixed to the ground by bolts.
[0008] Preferably, the lower end of the support column in the loading and unloading mechanism of the steel measuring tape being inspected is connected to the ground, the lifting mechanism is vertically fixed on the bottom connecting plate, and the side of the bottom connecting plate is fixed on the support column.
[0009] The beneficial effects of this utility model are as follows:
[0010] 1. The traditional steel tape measure tensioning process requires manual handling of weights, which are then hung on the ends of both the standard and tested steel tape measures to apply the corresponding tension. Unloading also requires manual removal of the weights from both the standard and tested steel tape measures. The entire process is time-consuming and labor-intensive. In contrast, this device, through its optimized design, allows users to complete the tensioning and unloading of both the standard and tested steel tape measures simply by clicking a button, greatly improving the efficiency of steel tape measure testing and reducing manual labor.
[0011] 2. This utility model achieves simultaneous lifting and lowering of the standard steel tape measure weight and the steel tape measure under test during the tensioning and unloading process of the steel tape measure. This ensures that the tension of the standard steel tape measure is unloaded at the same time as the steel tape measure under test is removed, avoiding any omissions in the unloading process of the standard steel tape measure, reducing the time the standard steel tape measure is stretched, and extending the life of the standard steel tape measure.
[0012] 3. The invention of this utility model patent not only solves the practical problems in the steel tape measure inspection process, but also provides new ideas and methods for technological innovation and development in related fields. The successful development and application of this device will promote the continuous progress and improvement of steel tape measure inspection technology, and facilitate the development of related equipment towards greater intelligence, automation, and efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a novel steel tape measure tensioning and unloading device according to this utility model.
[0014] Figure 2 This is a schematic diagram of the standard steel tape measure loading and unloading mechanism of a novel steel tape measure tension loading and unloading device according to this utility model.
[0015] Figure 3 This is a schematic diagram of the loading and unloading mechanism of a novel steel tape measure tension loading and unloading device according to this utility model.
[0016] Figure 4 This is a schematic diagram of the lifting mechanism of a novel steel tape measure tensioning and unloading device according to this utility model.
[0017] The annotations in the attached figures are explained as follows:
[0018] 1. Standard steel tape measure loading and unloading mechanism; 2. Inspected steel tape measure loading and unloading mechanism; 3. Control button; 4. Lifting mechanism; 5. L-shaped base plate; 6. Bottom connecting plate; 7. Support column; 8. Guide rail; 9. Slider; 10. Connecting plate; 11. Tray; 12. Electric piston; 13. Standard steel tape measure; 14. Inspected steel tape measure; 15. Weights. Detailed Implementation
[0019] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: a novel steel tape measure tension loading and unloading device, including a standard steel tape measure loading and unloading mechanism 1, a steel tape measure under test loading and unloading mechanism 2, and a control button 3. The control button 3 is connected to the standard steel tape measure loading and unloading mechanism 1 and the steel tape measure under test loading and unloading mechanism 2 via cables. The standard steel tape measure loading and unloading mechanism 1 includes a lifting mechanism 4 and an L-shaped base plate 5. The lifting mechanism 4 is fixed on the L-shaped base plate 5. The steel tape measure under test loading and unloading mechanism 2 includes a lifting mechanism 4, a bottom connecting plate 6, and a support column 7. The lifting mechanism 4 is fixed on the bottom connecting plate 6, and the bottom connecting plate 6 and the support column 7 are connected.
[0023] The lifting mechanism 4 consists of a guide rail 8, a slider 9, a connecting plate 10, a tray 11, and an electric piston 12. The slider 9 is mounted on the guide rail 8. One end of the connecting plate 10 is connected to the slider 9, and the other end is connected to the tray 11. The tray 11 is connected to the electric piston 12. The tray 11 moves linearly along the guide rail direction following the extension and retraction of the electric piston 12.
[0024] The L-shaped base plate 5 in the standard steel tape measure loading and unloading mechanism 1 is fixed to the ground by bolts.
[0025] The lower end of the support column 7 in the loading and unloading mechanism 2 of the inspected steel tape measure is connected to the ground, the lifting mechanism 4 is vertically fixed on the bottom connecting plate 6, and the side of the bottom connecting plate 6 is fixed on the support column 7.
[0026] In actual operation, firstly, the standard steel tape measure loading and unloading mechanism 1 of a new type of steel tape measure tension loading and unloading device is installed at the end position of the standard steel tape measure 13, so that the electric piston 12 in the lifting mechanism 4 is in the extended state and lifts the weight at the end of the standard steel tape measure 13 through the tray 11. At this time, the tension of the standard steel tape measure 13 is in the unloaded state. Then, the steel tape measure loading and unloading mechanism 2 to be inspected is installed at the end position of the steel tape measure 14 to be inspected, so that the electric piston 12 in the lifting mechanism 4 is in the extended state and lifts the weight at the end of the steel tape measure 14 to be inspected through the tray 11. At this time, the tension of the steel tape measure 14 to be inspected is in the unloaded state. When control button 3 is pressed, the electric piston 12 of the lifting mechanism 4 will descend simultaneously, causing the tray 11 to descend and release the support for the end weights 15 of the standard steel tape measure 13 and the end weights 15 of the steel tape measure 14 under test. This allows the tension force to be applied to the standard steel tape measure 13 and the steel tape measure 14 under test simultaneously. When control button 3 is released, the electric piston 12 of the lifting mechanism 4 will rise simultaneously, causing the tray 11 to rise and support the end weights 15 of the standard steel tape measure 13 and the end weights 15 of the steel tape measure 14 under test. This completes the simultaneous release of the tension force on the standard steel tape measure 13 and the steel tape measure 14 under test.
[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A novel tensioning and unloading device for steel measuring tapes, characterized in that: It includes a standard steel tape measure loading and unloading mechanism (1), a steel tape measure loading and unloading mechanism under inspection (2), and a control button (3). The control button (3) is connected to the standard steel tape measure loading and unloading mechanism (1) and the steel tape measure loading and unloading mechanism under inspection (2) via cables. The standard steel tape measure loading and unloading mechanism (1) includes a lifting mechanism (4) and an L-shaped base plate (5). The lifting mechanism (4) is fixed on the L-shaped base plate (5). The steel tape measure loading and unloading mechanism under inspection (2) includes a lifting mechanism (4), a bottom connecting plate (6), and a support column (7). The lifting mechanism (4) is fixed on the bottom connecting plate (6), and the bottom connecting plate (6) and the support column (7) are connected.
2. The novel steel tape measure tensioning and unloading device according to claim 1, characterized in that: The lifting mechanism (4) consists of a guide rail (8), a slider (9), a connecting plate (10), a tray (11), and an electric piston (12). The slider (9) is mounted on the guide rail (8). One end of the connecting plate (10) is connected to the slider (9), and the other end is connected to the tray (11). The tray (11) is connected to the electric piston (12). The tray (11) moves linearly along the guide rail direction as the electric piston (12) extends and retracts.
3. The novel steel tape measure tensioning and unloading device according to claim 1, characterized in that: The L-shaped base plate (5) in the standard steel tape measure loading and unloading mechanism (1) is fixed to the ground by bolts.
4. The novel steel tape measure tensioning and unloading device according to claim 1, characterized in that: The lower end of the support column (7) in the loading and unloading mechanism (2) of the steel measuring tape being inspected is connected to the ground, the lifting mechanism (4) is vertically fixed on the bottom connecting plate (6), and the side of the bottom connecting plate (6) is fixed on the support column (7).