Rack for measuring precision of measuring tape

Abstract

The embodiment of the invention provides a measuring tape precision measurement rack, and relates to the technical field of measuring tape precision measurement. A rack for measuring tape precision comprises a detection table, an on-table measuring mechanism is movably installed above the detection table, the on-table measuring mechanism comprises a measuring table, a guide rail is fixedly installed at the upper end of the measuring table, a magnifying glass assembly is slidably installed on the guide rail, a side block is arranged on the measuring table on one side of the guide rail, and a high-precision ruler is tightly attached to one side of the side block. Two ends of the high-precision ruler are fixed through a fixing mechanism, and one end of the side block is provided with a magnifying lens. The to-be-detected measuring tape and the high-precision contrast ruler are fixed through the end positioning mechanism and the tail positioning mechanism, auxiliary contrast detection is carried out in cooperation with the slidable magnifying lens assembly, multiple detection modes are achieved, the detection precision is improved, and the application range is widened.

Description

Technical Field

[0001] The present application relates to the technical field of tape measure precision measurement, and in particular to a stand for tape measure precision measurement. Background Art

[0002] In industrial manufacturing and measurement, tape measures are commonly used as length measurement tools, and their accuracy directly impacts the accuracy of actual measurements. Therefore, after production, tape measures are typically inspected using specialized testing equipment to verify their scale accuracy and ensure compliance with national or industry standards. Traditional methods for inspecting tape measures often rely on manual visual comparison. This involves placing the tape to be inspected side by side with a standard, high-precision ruler and visually inspecting the alignment of the two scales, or using a magnifying glass to assist. While this method is simple and inexpensive, it presents numerous challenges in practical application.

[0003] First, auxiliary tools such as magnifying glasses are usually fixed or handheld, making them inconvenient to use and making it difficult to achieve continuous and accurate observation of the entire length of the tape measure. In addition, existing testing platforms have a relatively simple structure and low functional integration, which makes it difficult to meet the testing needs of tape measures of different specifications and has poor adaptability. Secondly, some testing platforms lack a leveling structure for the tape measure, which makes the tape measure prone to bending during the inspection process, affecting the comparison accuracy. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems in the prior art, that auxiliary tools such as magnifying glasses are usually fixed or handheld, which are inconvenient to use and make it difficult to achieve continuous and accurate observation of the entire length of the tape measure. To this end, the present application proposes a stand for measuring the accuracy of a tape measure.

[0005] According to an embodiment of the present application, a stand for measuring the precision of a tape measure includes a detection table, a table measuring mechanism is movably installed above the detection table, the table measuring mechanism includes a measuring table, a guide rail is fixedly installed on the upper end of the measuring table, a magnifying glass assembly is slidably installed on the guide rail, a side block is provided on the measuring table on one side of the guide rail, a high-precision ruler is tightly fitted to one side of the side block, both ends of the high-precision ruler are fixed by a fixing mechanism, and a magnifying glass component is installed at one end of the side block.

[0006] Furthermore, the fixing mechanism includes a fixed block 1 fixedly installed at one end of the measuring table, a pair of sliding rods 1 are slidably arranged in the fixed block 1, one end of the sliding rod 1 is fixedly connected to a push block 1, and a spring 1 is sleeved on the sliding rod 1 located between the fixed block 1 and the push block 1.

[0007] Furthermore, a fixed block 2 is fixedly provided at the other end of the measuring table, a pair of slide rods 2 are slidably installed in the fixed block 2, one end of the slide rod 2 is fixedly connected to the push block 2, a screw rod 1 is threadedly connected to the fixed block 2, one end of the screw rod 1 is rotatably connected to one side of the push block 2, and a spring 2 is sleeved on the end of the slide rod 2.

[0008] Furthermore, the magnifying glass assembly includes a base that slides on the guide rail, one side of the base is threadedly connected to a positioning bolt three, an adjustment slot is opened on the base, a mounting block is slidably arranged in the adjustment slot, and a magnifying lens is installed on the mounting block.

[0009] Furthermore, a second screw rod is rotatably provided in the adjusting groove, and the second screw rod is threadedly connected to the mounting block.

[0010] Furthermore, an end positioning mechanism and a tail positioning mechanism are respectively installed at both ends of the detection platform, and the end positioning mechanism and the tail positioning mechanism respectively fix the two ends of the measuring tape and the reference precision ruler.

[0011] Furthermore, the end positioning mechanism includes an end support located at one end of the detection table, a sliding groove is opened at the upper end of the end support, a screw rod is rotatably installed in the sliding groove, the screw rod is threadedly connected to the moving block, a positioning plate 2 is fixedly installed on the moving block, the positioning plate 2 is threadedly connected to a positioning bolt 2, and a positioning plate 1 is fixedly provided on the end support on one side of the moving block, and the positioning plate 1 is threadedly connected to a positioning bolt 1.

[0012] Furthermore, the tail positioning mechanism includes a tail support located at the other end of the detection platform, and tail roller 1 and tail roller 2 are respectively installed on the upper end of the tail support, and tail roller 1 and tail roller 2 are staggered.

[0013] Furthermore, a symmetrical slide rail 1 is fixedly provided on the detection platform, and a roller provided at the bottom of the measuring platform rolls in the slide rail 1. A positioning seat is also threadedly installed at the bottom of the measuring platform, and a slide rail 2 is hinged to one side of the slide rail 1.

[0014] Furthermore, the measuring platform is provided with a side rail, a sliding seat is slidably installed in the side rail, the upper end of the sliding seat is threadedly connected to screw rod 2, the lower end of screw rod 2 is rotatably connected to the scraper, and one side of the sliding seat is threadedly connected to positioning bolt 4.

[0015] 1. The beneficial effects of the present application are as follows: by installing end positioning mechanisms and tail positioning mechanisms at both ends of the testing table, the end positioning mechanisms and tail positioning mechanisms are used to fix the two ends of the tape measure to be tested and the high-precision ruler used for comparison, the scale bodies of the tape measure to be tested and the high-precision ruler for comparison are located on the testing table, and the two sets of rulers are compared manually. In addition, the tape measure to be tested can be laid flat on the measuring table so that the tape measure to be tested is located on one side of the high-precision ruler fixed by the fixing mechanism, and the magnifying glass assembly is used to slide on the guide rail to assist in comparative detection. By realizing detection in different ways, its scope of application is expanded, and at the same time, with the use of the magnifying glass assembly, the accuracy of detection is improved.

[0016] 2. The beneficial effects of the present application are as follows: by sliding the measuring mechanism on the table in the slide rails 1 and 2, the use position of the measuring mechanism on the table can be adjusted, which is convenient for the inspection personnel to operate, and when not in use, the slide rail 2 can be rotated upward without affecting the use of the inspection table. Secondly, the sliding seat is used to slide with the scraper, so that the scraper can scrape the tape to be inspected flat, preventing the tape from being wound and affecting the inspection accuracy. When the moving seat is not moving, the use of screw 2 and positioning bolt 4 can be used to fix the tape to be inspected, thereby improving its stability.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a stand for measuring tape accuracy according to an embodiment of the present application;

[0020] Figure 2 According to the embodiment of this application Figure 1 Schematic diagram of the top view structure;

[0021] Figure 3 is a schematic diagram of a table measurement structure according to an embodiment of the present application;

[0022] Figure 4 is a schematic structural diagram of a magnifying glass assembly according to an embodiment of the present application;

[0023] Figure 5 is a schematic diagram of the structure of a measuring platform, etc. according to an embodiment of the present application;

[0024] Figure 6 According to the embodiment of this application Figure 5 Schematic diagram of the structure at A;

[0025] Figure 7 According to the embodiment of this application Figure 5 Schematic diagram of the structure at B;

[0026] Figure 8 According to the embodiment of this application Figure 5 Schematic diagram of the structure at C;

[0027] Figure 9is a schematic structural diagram of an end positioning mechanism according to an embodiment of the present application;

[0028] Figure 10 2 is a schematic diagram of the structure of the tail positioning mechanism according to an embodiment of the present application.

[0029] Icons: 1. Inspection table; 2. End positioning mechanism; 21. End support; 22. Positioning plate 1; 23. Positioning bolt 1; 24. Slide; 25. Moving block; 26. Screw 1; 27. Positioning plate 2; 28. Positioning bolt 2; 3. Tail positioning mechanism; 31. Tail support; 32. Tail roller 1; 33. Tail roller 2; 4. On-table measuring mechanism; 41. Measuring table; 42. Roller; 43. Positioning seat; 44. Guide rail; 45. Magnifying glass assembly; 451. Base; 452. Adjustment slot; 45 3. Screw rod 2; 454. Mounting block; 455. Magnifying lens; 456. Positioning bolt 3; 46. Side block; 47. Magnifying lens component; 48. High-precision ruler; 49. Fixed block 1; 491. Slide rod 1; 492. Push block 1; 493. Spring 1; 494. Fixed block 2; 495. Slide rod 2; 496. Push block 2; 497. Spring 2; 498. Screw rod 1; 5. Slide rail 1; 6. Slide rail 2; 7. Side rail; 71. Sliding seat; 72. Screw rod 2; 73. Scraper; 74. Positioning bolt 4. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0031] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0036] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] A stand for measuring tape accuracy according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0039] like Figure 1As shown, the present invention provides a first embodiment of a stand for measuring tape accuracy, comprising a testing table 1, above which is movably mounted a table measuring mechanism 4, the table measuring mechanism 4 comprising a measuring table 41, a guide rail 44 being fixedly mounted on the upper end of the measuring table 41, and a magnifying glass assembly 45 being slidably mounted on the guide rail 44 for magnifying the scale details between the tape measure to be measured and the reference standard ruler during the testing process, thereby improving the accuracy and clarity of the comparative test.

[0040] like Figure 4 As shown, further, the magnifying glass assembly 45 includes a base 451, which can slide along the guide rail 44 to facilitate flexible adjustment according to the detection position. A positioning bolt 3 456 is provided on one side of the base 451, which passes through the base 451 and contacts the top of the guide rail 44. By tightening the positioning bolt 3 456, the magnifying glass assembly 45 can be locked at any position on the guide rail 44 to ensure stability during use. An adjustment slot 452 is provided on the base 451, and a mounting block 454 is slidingly provided in the adjustment slot 452. A magnifying lens 455 is fixedly mounted on the mounting block 454. By sliding the mounting block 454 back and forth in the adjustment slot 452, the front and rear position of the magnifying lens 455 can be fine-tuned to meet different observation needs.

[0041] In order to improve the adjustment accuracy, a screw rod 453 is rotatably provided inside the adjustment slot 452. The screw rod 453 and the mounting block 454 are threadedly connected. By rotating the screw rod 453, the mounting block 454 can be driven to move smoothly along the direction of the adjustment slot 452, thereby achieving precise positioning of the magnifying lens 455.

[0042] like Figure 3 and Figure 5 As shown, a side block 46 is installed on the measuring platform 41 on one side of the guide rail 44. A high-precision ruler 48 is tightly attached to one side of the side block 46, serving as a reference ruler for calibration with the tape measure being tested. The high-precision ruler 48 is clamped and secured at both ends by a fixing mechanism to ensure it remains stable during testing, preventing looseness from affecting the test results.

[0043] like Figure 6 As shown, the fixing mechanism includes a fixed block 49 mounted at one end of the measuring table 41. A pair of slide bars 491 are slidably mounted within the fixed block 49, with one end of the slide bar 491 connected to a push block 492. A spring 493 is positioned between the fixed block 49 and the push block 492, and is sleeved onto the slide bar 491. When one end of the high-precision ruler 48 is placed between the push block 492 and the other push block, the spring 493 provides a certain cushioning force, causing the push block 492 to automatically contact the end of the high-precision ruler 48, achieving initial clamping.

[0044] like Figure 7As shown, a second fixed block 494 is provided at the other end of the measuring table 41. A second slide bar 495 is slidably disposed within the fixed block 494, and one end of the slide bar 495 is connected to a second push block 496. A second spring 497 is sleeved on the end of the slide bar 495 to provide elastic support. A screw 498 is threadedly connected to the fixed block 494, and one end of the screw 498 is rotatably connected to the second push block 496. By rotating the screw 498, the push block 496 can be moved toward the high-precision ruler 48. Combined with the force of the second spring 497, the other end of the high-precision ruler 48 is clamped and fixed, ensuring that it remains stable and does not deviate throughout the testing process.

[0045] In addition, a magnifying glass 47 is installed at one end of the side block 46 for locally magnifying and observing the end scales of the high-precision ruler 48 and the tape measure to be tested, assisting the operator to more accurately complete the scale alignment of the two and further improve the detection accuracy.

[0046] like Figure 1 As shown, the present invention provides a second embodiment of a stand for measuring tape accuracy, comprising a testing platform 1, at both ends of which are provided an end positioning mechanism 2 and a tail positioning mechanism 3, for clamping and fixing the ends of the tape measure to be tested and the high-precision ruler used as a reference, thereby ensuring that both remain straight and stable during the testing process, thereby improving the accuracy of the measurement results.

[0047] like Figure 9 As shown, the end positioning mechanism 2 is disposed at one end of the test platform 1 and specifically includes an end support 21. End support 21 is mounted on the surface of the test platform 1 and positioned at one end of the tape measure to be tested and the reference high-precision ruler. A chute 24 is defined at the upper end of end support 21. A screw 26 is rotatably mounted within chute 24. Screw 26 is threadedly connected to a movable block 25. Rotating screw 26 drives movable block 25 to slide along chute 24. A second positioning plate 27 is fixedly mounted on the top of movable block 25. Positioning plate 27 is provided with a second positioning bolt 28. Tightening this bolt 28 secures the end of the tape measure to be tested.

[0048] A positioning plate 22 is also fixed to the end support 21 on one side of the moving block 25. Positioning plate 22 is equipped with a positioning bolt 23. To secure two rulers, first place one end of the high-precision ruler for comparison within positioning plate 22 and secure it by tightening positioning bolt 23. Then, place one end of the tape measure to be tested into positioning plate 27 and clamp it with positioning bolt 28. This allows for simultaneous and synchronous clamping of the two ruler ends, improving stability and comparison accuracy during testing.

[0049] like Figure 10As shown, the tail positioning mechanism 3 is provided at the other end of the testing platform 1 and specifically includes a tail support 31, which is fixedly mounted at the other end of the testing platform 1. The upper end of the tail support 31 is provided with a tail roller 1 32 and a tail roller 2 33. The two rollers are arranged in a staggered manner to prevent the tape measure and the reference ruler from merging.

[0050] During actual use, one end of the tape measure to be tested and the reference high-precision ruler are pulled from the upper side of the test platform 1 to the tail roller 1 32 and tail roller 2 33, respectively. Counterweights are then attached to these ends. Weight hooks are then attached to the counterweights according to test requirements, and a set tension is applied to keep the tape measure and high-precision ruler taut during the test. This tensioning structure effectively prevents the tape measure from bending or loosening due to its own weight or when winding, further improving the accuracy and repeatability of the test.

[0051] like Figure 2 As shown, the present invention provides a third embodiment of a stand for measuring tape accuracy, wherein symmetrically arranged slide rails 5 are fixedly provided on the detection platform 1, and rollers 42 are provided at the bottom of the measuring platform 41. These rollers 42 can roll freely in the slide rails 5, thereby realizing the translational movement of the measuring platform 41 on the detection platform 1.

[0052] To further enhance the stability and flexibility of the measuring platform 41, a positioning seat 43 is threadedly mounted on the bottom of the measuring platform 41. To move the measuring platform 41, the positioning seat 43 is first rotated upward to disengage it from the surface of the test platform 1. Then, by rolling the rollers 42 along the slide rails 5, the measuring platform 41 can be easily moved to either side of the test platform 1. Once the desired position is reached, the positioning seat 43 is rotated to fit snugly against the surface of the test platform 1. This effectively prevents unnecessary movement of the measuring platform 41 during use and ensures its stability.

[0053] Furthermore, one side of slide rail 1 5 is hingedly connected to slide rail 2 6, which can be adjusted in angle as needed. To extend the range of motion of measuring platform 41, slide rail 2 6 is rotated downward to align with slide rail 1 5. This allows rollers 42 to roll smoothly on the extended track, allowing measuring platform 41 to be moved to the other side of inspection platform 1, significantly enhancing the device's operational flexibility and applicability.

[0054] When the measuring table 41 is not in use, the slide rail 2 6 can be rotated upward to reset it, thereby not affecting the normal use of other parts of the testing table 1, saving space and keeping the overall layout neat and orderly.

[0055] like Figure 8As shown, the present invention provides a fourth embodiment of a stand for measuring tape precision. To further enhance the functionality and ease of operation of the stand, a measuring platform 41 is provided with side rails 7, within which a sliding seat 71 is slidably mounted. The sliding seat 71 is able to slide freely within the side rails 7, allowing its position to be adjusted according to testing requirements. A second screw 72 is threadedly connected to the upper end of the sliding seat 71, and the lower end of the second screw 72 is rotatably connected to a scraper 73. By rotating the second screw 72, the height of the scraper 73 can be adjusted so that it is precisely positioned above the tape to be tested and fits tightly against the surface of the tape.

[0056] Specifically, when the tape needs to be leveled, first rotate screw 2 72 to adjust scraper 73 to an appropriate height, allowing scraper 73 to lightly contact the surface of the tape to be tested. Then, push the sliding seat 71 along the side rails 7, and scraper 73 moves accordingly to level the tape, effectively preventing wrinkles or bends during testing and ensuring accurate and consistent measurements.

[0057] Furthermore, when the tape measure needs to be secured, screw 2 (72) can be further rotated to force scraper 73 into closer contact with the tape measure surface, thereby achieving a secure clamping of the tape measure. This design not only ensures the tape measure's stability during testing but also allows for flexible adjustment of the fixed position according to actual needs. Once the fixed position is determined, it can be locked with positioning bolt 4 (74) on one side of the sliding seat 71, ensuring that the sliding seat 71 does not move during use, further enhancing the stability and reliability of the system.

[0058] A positioning bolt 74 is also provided on one side of the sliding seat 71 for locking the sliding seat 71 after the position adjustment is completed to prevent it from moving unnecessary during operation and ensure that the scraper 73 is always in the best working condition.

[0059] The above are merely examples of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may be subject to various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

[0060] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A stand for measuring tape accuracy, characterized by: The invention comprises a detection platform (1), wherein a platform measuring mechanism (4) is movably installed above the detection platform (1), the platform measuring mechanism (4) comprises a measuring platform (41), a guide rail (44) is fixedly installed on the upper end of the measuring platform (41), a magnifying glass assembly (45) is slidably installed on the guide rail (44), a side block (46) is provided on the measuring platform (41) on one side of the guide rail (44), a high-precision ruler (48) is tightly fitted on one side of the side block (46), both ends of the high-precision ruler (48) are fixed by a fixing mechanism, and a magnifying glass component (47) is installed on one end of the side block (46).

2. The tape measure precision measuring stand according to claim 1, characterized in that: The fixing mechanism includes a fixing block (49) fixedly mounted on one end of the measuring platform (41), a pair of slide bars (491) slidably arranged in the fixing block (49), one end of the slide bar (491) is fixedly connected to a push block (492), and a spring (493) is sleeved on the slide bar (491) located between the fixing block (49) and the push block (492).

3. The tape measure precision measuring stand according to claim 2, characterized in that: The other end of the measuring platform (41) is fixedly provided with a fixed block 2 (494), a pair of slide rods 2 (495) are slidably installed in the fixed block 2 (494), one end of the slide rod 2 (495) is fixedly connected with a push block 2 (496), a screw rod 1 (498) is threadedly connected on the fixed block 2 (494), one end of the screw rod 1 (498) is rotatably connected to one side of the push block 2 (496), and a spring 2 (497) is sleeved on the end of the slide rod 2 (495).

4. The tape measure precision measuring stand according to claim 1, characterized in that: The magnifying glass assembly (45) comprises a base (451) that slides on a guide rail (44), one side of the base (451) is threadedly connected to a positioning bolt (456), an adjusting groove (452) is provided on the base (451), a mounting block (454) is slidably provided in the adjusting groove (452), and a magnifying lens (455) is mounted on the mounting block (454).

5. The tape measure precision measuring stand according to claim 4, characterized in that: A second screw rod (453) is rotatably provided in the adjusting groove (452), and the second screw rod (453) is threadedly connected to the mounting block (454).

6. The tape measure precision measuring stand according to claim 1, characterized in that: An end positioning mechanism (2) and a tail positioning mechanism (3) are respectively installed at both ends of the detection platform (1), and the end positioning mechanism (2) and the tail positioning mechanism (3) respectively fix the two ends of the measuring tape and the comparison precision ruler.

7. The tape measure precision measuring stand according to claim 6, characterized in that: The end positioning mechanism (2) comprises an end support (21) located at one end of the detection platform (1), a slide groove (24) is provided at the upper end of the end support (21), a screw rod (26) is rotatably installed in the slide groove (24), the screw rod (26) is threadedly connected to the moving block (25), a positioning plate (27) is fixedly installed on the moving block (25), a positioning bolt (28) is threadedly connected to the positioning plate (27), a positioning plate (22) is fixedly provided on the end support (21) on one side of the moving block (25), and a positioning bolt (23) is threadedly connected to the positioning plate (22).

8. The tape measure precision measuring stand according to claim 7, characterized in that: The tail positioning mechanism (3) includes a tail support (31) located at the other end of the detection platform (1), and a tail roller 1 (32) and a tail roller 2 (33) are respectively installed on the upper end of the tail support (31), and the tail roller 1 (32) and the tail roller 2 (33) are staggered.

9. The tape measure precision measuring stand according to claim 1, characterized in that: A symmetrical slide rail (5) is fixedly provided on the detection platform (1), a roller (42) provided at the bottom of the measuring platform (41) rolls in the slide rail (5), a positioning seat (43) is simultaneously threadedly installed at the bottom of the measuring platform (41), and a slide rail (6) is hingedly connected to one side of the slide rail (5).

10. The tape measure precision measuring stand according to claim 9, characterized in that: The measuring platform (41) is provided with a side rail (7), a sliding seat (71) is slidably installed in the side rail (7), the upper end of the sliding seat (71) is threadedly connected to a second screw rod (72), the lower end of the second screw rod (72) is rotatably connected to the scraper (73), and one side of the sliding seat (71) is threadedly connected to a fourth positioning bolt (74).

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