A wear-resistant detection device for steel tape measure

Abstract

The present invention relates to the technical field of detection devices, and specifically discloses a steel tape measure wear-resistant detection device, comprising a detection frame; a feed hopper and a transmission pipe; a detection platform; a recovery box; a clamping mechanism, which is located in the detection platform; and a regulating mechanism, which is located in the detection platform. The steel tape measure wear-resistant detection device fixes the arc surface of the steel tape measure through the clamping mechanism in cooperation with a placement groove, thereby evenly distributing the pressure generated during fixation, reducing wear or deformation of the tape caused by improper clamping, and intermittently controlling the sliding friction between gravel and the surface of the steel tape measure through the regulating mechanism, thereby simulating the sliding friction between the gravel and the surface of the steel tape measure during the winding process of the steel tape measure when the steel tape measure is actually used, so as to cooperate with a more comprehensive simulation of the friction conditions to which the steel tape measure is subjected during actual use, thereby more directly reflecting the wear life of the steel tape measure in actual use.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, in particular to a wear-resistant detection device for a steel tape measure. Background Art

[0002] As a measuring tool, the measurement accuracy of the steel tape measure is crucial to many fields such as engineering, construction, and manufacturing. During use, the surface of the steel tape measure may be subject to various forms of wear, such as friction, scratches, particle impact, etc. These wears will not only affect the appearance of the steel tape measure, but more importantly, will directly affect its measurement accuracy.

[0003] Generally speaking, there are many methods for testing the wear resistance of measuring tapes, among which falling sand wear resistance testing is a common means of evaluating the wear resistance of materials. In the construction industry, steel measuring tapes are often used in outdoor or indoor construction sites, where there is often a lot of sand and dust. The sand and dust particles at the construction site will not only cause friction and wear on the surface of the steel measuring tape, but also intensify the wear process through impact. The falling sand tester can evaluate the wear resistance of the steel measuring tape in this environment by simulating the impact and friction of sand and dust particles on the surface of the steel measuring tape.

[0004] However, when the steel tape is being unfolded or reeled in, its surface will produce sliding friction with the sand. The falling sand detection device usually impacts the material surface by means of particle flow or vertical jet. The falling sand test usually evaluates the wear resistance by recording the amount of wear or the wear time. However, these indicators cannot directly reflect the wear life of the steel tape in actual use. Therefore, we propose a wear resistance detection device for steel tape. Summary of the invention

[0005] The purpose of the present invention is to provide a wear-resistant detection device for a steel tape measure, so as to solve the problem proposed in the above background technology that the surface of the steel tape measure will produce sliding friction with sand and gravel during the unfolding or winding process, and the falling sand detection device usually impacts the material surface by means of particle flow or vertical spraying, and the falling sand test usually evaluates the wear resistance by recording the wear amount or wear time, but these indicators cannot directly reflect the wear resistance life of the steel tape measure in actual use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wear-resistant detection device for a steel tape measure, comprising a detection frame; a feed hopper and a transmission pipe, the feed hopper is connected to the transmission pipe, and the feed hopper is installed on the detection frame; a detection table, the detection table is fixedly connected to the detection frame, a placement slot is provided inside the detection table, and the transmission pipe is connected to the placement slot; a recovery box, the recovery box is located below the detection table, and the recovery box is fixed to the detection frame;

[0007] The clamping mechanism is located in the testing platform, and the clamping mechanism cooperates with the placement slot to limit the steel tape measure;

[0008] The regulating mechanism is located in the testing platform. The clamping mechanism fixes the unfolded steel tape measure in the placement slot. When the gravel impacts the surface of the steel tape measure, the regulating mechanism intermittently controls the sliding friction between the gravel and the surface of the steel tape measure.

[0009] The placement groove is arranged obliquely, and the surface of the placement groove is in a concave arc shape.

[0010] Among them, the clamping mechanism includes a connecting block located on the inner wall of the placement groove, a rubber block is fixedly connected to the side of the connecting block close to the arc surface of the placement groove, the surface of the rubber block is an arc-shaped convexity, and a moving part is provided on the side of the connecting block away from the rubber block, and the moving part drives the connecting block to approach the concave arc surface of the placement groove.

[0011] Among them, the moving part includes a moving block fixedly connected to the connecting block, the moving block is slidably connected to the inner wall of the detection platform, a limiting block is fixedly connected to the outer side of the moving block, the limiting block is slidably connected to the inner wall of the detection platform, a spring sheet is fixedly connected to the outer side of the limiting block, the spring sheet is fixedly connected to the inner wall of the detection platform, an oblique end is provided at one end of the moving block away from the connecting block, an adjusting block is abutted on the outer side of the oblique end of the moving block, the adjusting block is slidably connected to the inner wall of the detection platform, an adjusting handle is rotatably connected to the top of the adjusting block, the adjusting handle passes through the detection platform and is connected to the outside world, and the adjusting handle is threadedly connected to the inner wall of the detection platform.

[0012] Among them, the regulating mechanism includes a silicon capsule fixedly connected to the inner wall of the placement groove, the silicon capsule is located below the transmission tube, an extrusion block is provided on the inside of the silicon capsule, a sliding groove slidably connected to the extrusion block is opened on the inner wall of the detection table, and a driving member is provided on the inside of the extrusion block for regularly driving the extrusion block to slide on the inner wall of the detection table. A control member for controlling the closure and connection of the transmission tube is provided above the detection table.

[0013] The side of the extrusion block close to the silicon capsule is convex in an arc shape, and the convex side of the extrusion block can be fitted with the inner wall of the placement groove.

[0014] Among them, the driving part includes a connecting rod 1 fixedly connected to the extrusion block, a connecting rod 2 is provided on the outside of the connecting rod 1, the connecting rod 1 and the connecting rod 2 are respectively slidably connected to the inner wall of the detection platform, one end of the connecting rod 1 is inserted into the inner wall of the connecting rod 2 and is slidably connected to the inner wall of the connecting rod 2, a compression spring is fixedly connected to one end of the connecting rod 1 near the connecting rod 2, the compression spring is located inside the connecting rod 2, a servo motor is installed on the inner wall of the detection platform, and the output end of the servo motor is fixedly connected to the two ends of the connecting rod.

[0015] Among them, the control part includes a support frame fixed on the detection table, the support frame is wrapped around the outside of the transmission tube, an electric telescopic rod is installed on the inner wall of the support frame, and control switch 1 and control switch 2 for controlling the extension and retraction of the electric telescopic rod are respectively installed at the upper and lower ends of the sliding groove. A control panel is fixedly connected to the end of the electric telescopic rod, and the control panel is divided into a closed part and a connecting part.

[0016] The cross section of the connecting portion is triangular.

[0017] Among them, the inner wall of the second connecting rod is provided with an adjusting part for adjusting the elastic force of the compression spring, the adjusting part includes a piston plate fixedly connected to the compression spring, the piston plate is slidably connected to the inner wall of the second connecting rod, an air pump is installed on the outside of the testing platform, an air pipe is connected between the air pump and the second connecting rod, the air pipe is slidably connected to the inner wall of the testing platform, and a pressure sensor for detecting the internal air pressure of the second connecting rod is installed on the inner wall of the second connecting rod.

[0018] The present invention has at least the following beneficial effects:

[0019] When the present application is in use, the curved surface of the steel tape measure is fixed by the clamping mechanism in cooperation with the placement groove, so as to evenly distribute the pressure generated during the fixation, thereby reducing the wear or deformation of the tape caused by improper clamping. When the gravel in the feed hopper impacts the surface of the steel tape measure through the transmission pipe, the sliding friction between the gravel and the surface of the steel tape measure is intermittently controlled by the regulating mechanism, thereby simulating the sliding friction between the gravel and the surface of the steel tape measure during the winding process of the steel tape measure in actual use, and because the friction is not continuous, the thermal effect on the surface of the specimen is relatively small, which helps to reduce the influence of high temperature generated by continuous friction on the performance of the specimen, and the process of gravel impact-gravel friction-cooling-gravel impact is cyclically tested to cooperate with a more comprehensive simulation of the friction conditions to which the steel tape measure is subjected in actual use, thereby more directly reflecting the wear life of the steel tape measure in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0022] Figure 3 It is a schematic diagram of the internal structure of the detection platform of the present invention;

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of area B in the middle;

[0024] Figure 5 for Figure 3 Enlarged schematic diagram of the middle C area;

[0025] Figure 6 for Figure 3 Enlarged schematic diagram of the middle D area;

[0026] Figure 7 This is a cross-sectional structural diagram of the connecting rod of the present invention;

[0027] Figure 8 for Figure 7 Enlarged schematic diagram of area E in the middle.

[0028] In the figure: 1. detection frame; 2. feed hopper; 3. transmission pipe; 4. detection table; 5. placement slot; 6. recovery box; 7. clamping mechanism; 70. connection block; 71. rubber block; 72. moving part; 73. moving block; 74. limit block; 75. spring sheet; 76. oblique end; 77. adjustment block; 78. adjustment handle; 8. control mechanism; 80. silicon capsule; 81. extrusion block; 82. sliding slot; 83. driving part; 84. control part; 85. connecting rod one; 86. connecting rod two; 87. compression spring; 88. servo motor; 89. support frame; 810. electric telescopic rod; 811. control switch one; 812. control switch two; 813. control board; 814. closing part; 815. connecting part; 816. adjustment part; 817. piston plate; 818. air pump; 819. air pipe; 820. pressure sensor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] See also Figures 1 to 8 The present invention provides a technical solution: a steel tape wear-resistant detection device, comprising a detection frame 1; further comprising a feed hopper 2 and a transmission pipe 3, the feed hopper 2 is connected to the transmission pipe 3, and the feed hopper 2 is installed on the detection frame 1; a detection table 4, the detection table 4 is fixedly connected to the detection frame 1, a placement groove 5 is opened inside the detection table 4, the placement groove 5 is obliquely arranged, and the surface of the placement groove 5 is concave arc-shaped, and the transmission pipe 3 is connected to the placement groove 5; a recovery box 6, the recovery box 6 is located below the detection table 4, and the recovery box 6 is fixed to the detection frame 1; a clamping mechanism 7, the clamping mechanism 7 is located in the detection table 4, and the clamping mechanism 7 cooperates with the placement groove 5 to limit the steel tape; a regulating mechanism 8, the regulating mechanism 8 is located in the detection table 4, the clamping mechanism 7 fixes the unfolded steel tape in the placement groove 5, and when the gravel impacts the surface of the steel tape, the regulating mechanism 8 intermittently controls the sliding friction between the gravel and the surface of the steel tape.

[0032] Before the test, the inspector adds the gravel for the test into the feed hopper 2, pulls out a portion of the steel tape measure, and passes the unfolded portion through the placement slot 5. The curved surface of the steel tape measure is fixed by the clamping mechanism 7 in cooperation with the placement slot 5, thereby evenly distributing the pressure generated during the fixation and reducing the wear or deformation of the tape caused by improper clamping.

[0033] After the steel tape measure is fixed, the gravel in the feed hopper 2 impacts the surface of the steel tape measure located in the placement slot 5 through the transmission pipe 3, and after each fixed time interval (set by the test personnel, which can be a time interval of 2 minutes, 3 minutes, etc.), the regulating mechanism 8 controls the gravel to generate sliding friction with the surface of the steel tape measure, thereby simulating the sliding friction between the gravel and the surface of the steel tape measure during the winding process of the steel tape measure when the steel tape measure is actually used. After the regulating mechanism 8 causes the gravel to slide against the surface of the tape measure, the regulating mechanism 8 controls the gravel in the feed hopper 2 to stop impacting the surface of the tape measure within a predetermined time. The time is determined by the test personnel according to the size and material of the steel tape measure, and it is ensured that the surface of the tape measure that has been rubbed by the gravel within the interval time has been completely cooled, so as to avoid the high temperature generated by the continuous friction on the surface of the tape measure affecting the test results of the test piece performance. Through the cycle test of gravel impact-gravel friction-cooling-gravel impact, a more comprehensive simulation of the friction of the steel tape measure in actual use is carried out, so as to more directly reflect the wear life of the steel tape measure in actual use. The gravel falling from the placement slot 5 enters the recovery box 6 for collection.

[0034] The clamping mechanism 7 includes a connecting block 70 located on the inner wall of the placement groove 5. A rubber block 71 is fixedly connected to the connecting block 70 on the side close to the arc surface of the placement groove 5. The surface of the rubber block 71 is an arc-shaped convexity. A moving member 72 is provided on the side of the connecting block 70 away from the rubber block 71. The moving member 72 drives the connecting block 70 to approach the concave arc surface of the placement groove 5.

[0035] When fixing the steel tape measure, the tester unfolds the steel tape measure and passes it through the placement slot 5, so that the convex surface of the tape measure fits with the concave arc side of the placement slot 5, and then the tester pushes the connecting block 70 to move through the moving part 72, and the connecting block 70 drives the rubber block 71 to move, so that the convex part of the rubber block 71 is against the concave surface of the steel tape measure, so as to better fit the curved shape of the steel tape measure, evenly distribute the pressure generated during fixing, and reduce the wear or deformation of the tape caused by improper clamping.

[0036] The moving member 72 includes a moving block 73 fixedly connected to the connecting block 70, the moving block 73 is slidably connected to the inner wall of the detection platform 4, a limiting block 74 is fixedly connected to the outer side of the moving block 73, the limiting block 74 is slidably connected to the inner wall of the detection platform 4, a spring sheet 75 is fixedly connected to the outer side of the limiting block 74, the spring sheet 75 is fixedly connected to the inner wall of the detection platform 4, an oblique end 76 is provided at the end of the moving block 73 away from the connecting block 70, an adjusting block 77 is abutted on the outer side of the oblique end 76 of the moving block 73, the adjusting block 77 is slidably connected to the inner wall of the detection platform 4, an adjusting handle 78 is rotatably connected to the top of the adjusting block 77, the adjusting handle 78 passes through the detection platform 4 and is connected to the outside, and the adjusting handle 78 is threadedly connected to the inner wall of the detection platform 4.

[0037] When the moving member 72 is working, the inspector turns the adjusting handle 78, and the adjusting handle 78 rotates relative to the inner wall of the testing platform 4, so that the adjusting handle 78 pushes the adjusting block 77 to slide along the inner wall of the testing platform 4 while rotating relative to the adjusting block 77, and the adjusting block 77 squeezes the oblique end 76 of the moving block 73, so that the moving block 73 slides along the inner wall of the testing platform 4, and the moving block 73 drives the connecting block 70 to approach the tape of the steel tape measure, and the moving block 73 drives the limit block 74 to slide on the inner wall of the testing platform 4, and the limit block 74 squeezes the spring sheet 75 to cooperate with the inspector to rotate the adjusting handle 78 in the opposite direction, and the spring sheet 75 in the compressed state pushes the limit block 74 to reset, and the limit block 74 drives the moving block 73 to reset, so that the connecting block 70 drives the rubber block 71 to separate from the tape, so as to cooperate with the inspector to remove the steel tape measure after the test.

[0038] The regulating mechanism 8 includes a silicon capsule 80 fixedly connected to the inner wall of the placement groove 5. The silicon capsule 80 is located below the transmission tube 3. An extrusion block 81 is provided on the inner side of the silicon capsule 80. The extrusion block 81 is arc-shaped and protrudes on the side close to the silicon capsule 80, and the protruding side of the extrusion block 81 can fit with the inner wall of the placement groove 5. A sliding groove 82 slidably connected to the extrusion block 81 is provided on the inner wall of the detection platform 4. A driving member 83 is provided on the inner side of the extrusion block 81 for regularly driving the extrusion block 81 to slide on the inner wall of the detection platform 4. A control member 84 for controlling the closure and connection of the transmission tube 3 is provided above the detection platform 4.

[0039] When the sliding friction between the gravel and the surface of the steel tape is controlled, the driving member 83 drives the extrusion block 81 to slide on the inner wall of the sliding groove 82 at a fixed interval. When the extrusion block 81 moves, it squeezes the silicon capsule 80, so that the silicon capsule 80 is supported by the convex part of the extrusion block 81 and approaches the tape. Since the gravel continuously impacts the surface of the tape through the transmission tube 3, when the extrusion block 81 moves from bottom to top, the silicon capsule 80 will push part of the gravel to slide upward along the surface of the tape, thereby simulating the sliding friction between the gravel and the surface of the steel tape during the winding process of the steel tape. When the extrusion block 81 has the bottom of the sliding groove 82, the silicon capsule 80 will push part of the gravel to slide upward along the surface of the tape. After sliding to the upper end, the control member 84 closes the transmission tube 3, and the transmission tube 3 no longer outputs gravel to the surface of the tape. After a predetermined time, the driving member 83 drives the extrusion block 81 to reset. At this time, the tape has been cooled after this period of time. The control member 84 releases the closure of the transmission tube 3, and the gravel in the feed hopper 2 impacts the surface of the tape again through the transmission tube 3. The gravel impact-gravel friction-cooling-gravel impact process cycle test is carried out to cooperate with a more comprehensive simulation of the friction conditions that the steel tape measure is subjected to in actual use, thereby more directly reflecting the wear life of the steel tape measure in actual use.

[0040] The driving member 83 includes a connecting rod 85 fixedly connected to the extrusion block 81, and a connecting rod 86 is provided on the outer side of the connecting rod 85. The connecting rod 85 and the connecting rod 86 are respectively slidably connected to the inner wall of the detection platform 4. One end of the connecting rod 85 is inserted into the inner wall of the connecting rod 86 and is slidably connected to the inner wall of the connecting rod 86. A compression spring 87 is fixedly connected to one end of the connecting rod 85 near the connecting rod 86. The compression spring 87 is located inside the connecting rod 86. A servo motor 88 is installed on the inner wall of the detection platform 4, and the output end of the servo motor 88 is fixedly connected to the end of the connecting rod 86.

[0041] After each time interval preset by the tester, the servo motor 88 drives the connecting rod 2 86 to rotate, the connecting rod 2 86 drives the connecting rod 1 85 to rotate, the connecting rod 1 85 drives the extrusion block 81 to slide on the inner wall of the sliding groove 82, and causes the extrusion block 81 to squeeze the silicon capsule 80, so that the silicon capsule 80 is stretched open. When the connecting rod 1 85 drives the extrusion block 81 to rotate, the interaction force between the silicon capsule 80 and the extrusion block 81 causes the connecting rod 1 85 to slide along the inner wall of the connecting rod 2 86 and squeeze the compression spring 87. Through the sliding of the connecting rod 1 85 on the inner wall of the connecting rod 2 86, the silicon capsule 80 can slide upward on the surface of the tape under the extrusion of the extrusion block 81, and the silicon capsule 80 pushes part of the gravel to slide on the surface of the tape.

[0042] The control component 84 includes a support frame 89 fixed on the detection table 4, the support frame 89 is wrapped around the outside of the transmission tube 3, an electric telescopic rod 810 is installed on the inner wall of the support frame 89, and a control switch 1 811 and a control switch 2 812 for controlling the extension and retraction of the electric telescopic rod 810 are respectively installed at the upper and lower ends of the sliding groove 82. A control panel 813 is fixedly connected to the end of the electric telescopic rod 810. The control panel 813 is divided into a closed part 814 and a connecting part 815. The cross-section of the connecting part 815 is triangular to avoid obstructing the flow of sand and gravel in the transmission tube 3.

[0043] In the initial state, the electric telescopic rod 810 is in an extended state. At this time, the connecting portion 815 of the control panel 813 is located on the inner wall of the transmission tube 3. After the tester fixes the steel tape measure on the test bench 4, the tester adds gravel into the feed hopper 2. The gravel in the feed hopper 2 impacts the surface of the tape measure through the transmission tube 3 under the action of gravity.

[0044] When the extrusion block 81 moves to the upper end of the sliding slot 82 and triggers the control switch 1 811, the electric telescopic rod 810 contracts, and the electric telescopic rod 810 drives the control board 813 to move, so that the closing portion 814 of the control board 813 blocks the inner wall of the transmission tube 3, so that no gravel impacts the surface of the tape measure, so that the surface of the tape measure rubbed by the gravel is completely cooled, and the high temperature generated by the continuous friction on the surface of the tape measure affects the test results of the specimen performance; when the extrusion block 81 moves to the lower end of the sliding slot 82 and triggers the control switch 2 812, the electric telescopic rod 810 extends, and the electric telescopic rod 810 pushes the control board 813 to move, so that the closing portion 814 of the control board 813 moves out of the inner wall of the transmission tube 3, and the connecting portion 815 of the control board 813 moves into the transmission tube 3, so that the gravel continues to impact the surface of the tape measure.

[0045] Embodiment 2

[0046] In the second embodiment, other structures remain unchanged. The difference from the first embodiment is that an adjusting member 816 for adjusting the elastic force of the compression spring 87 is provided on the inner wall of the second connecting rod 86. The adjusting member 816 includes a piston plate 817 fixedly connected to the compression spring 87. The piston plate 817 is slidably connected to the inner wall of the second connecting rod 86. An air pump 818 is installed on the outer side of the detection platform 4. An air pipe 819 is connected between the air pump 818 and the second connecting rod 86. The air pipe 819 is slidably connected to the inner wall of the detection platform 4. A pressure sensor 820 for detecting the internal air pressure of the second connecting rod 86 is installed on the inner wall of the second connecting rod 86.

[0047] In the actual environment, the size of the gravel is irregular. Therefore, when the steel tape measure is being rolled up, the gravel stuck at the entrance of the steel tape measure shell has different sizes, so the pressure of the gravel and the steel tape measure surface when rubbing against each other is different. Although in the first embodiment, the compression spring 87 in the second connecting rod 86 is squeezed by the connecting rod 1 85, and the friction pressure between the gravel and the tape can be changed, the pressure change range is small and fixed. The air pump 818 is used to ventilate the air pipe 819, and the air pipe 819 injects gas into the inner wall of the second connecting rod 86, thereby changing the air pressure in the second connecting rod 86. The pressure sensor 820 can sense the change of the air pressure in the second connecting rod 86 in real time. According to the formula:

[0048] F = P * S;

[0049] S is the area of ​​the piston plate 817, P is the pressure on the inner wall of the connecting rod 86, and the pressure sensor 820 can convert the sensed pressure signal, that is, the pressure, into a quantifiable electrical signal, thereby realizing the measurement of the pressure, so that the pressure of the air pressure in the connecting rod 86 on the piston plate 817 is equal to the thrust of the compression spring 87 on the piston plate 817, and when the compression spring 87 is compressed, the thrusts on both ends are the same. These two thrusts are the reaction forces generated by the compression spring 87 to restore its original shape. They are equal in size and opposite in direction, so that the inspector can keep the interaction force between the sand and the tape consistent when the silicon capsule 80 pushes the sand to move on the surface of the tape by adjusting the air pressure inside the connecting rod 86, and can also make the sand generate more interaction forces of different sizes when moving on the surface of the tape, more comprehensively simulating the friction conditions of the steel tape measure in actual use, thereby more directly reflecting the wear life of the steel tape measure in actual use.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel tape wear detection device, comprising: Detection rack (1); The invention is characterized in that it also comprises a feed hopper (2) and a transmission pipe (3), wherein the feed hopper (2) is connected to the transmission pipe (3), and the feed hopper (2) is mounted on the detection frame (1); A testing platform (4), the testing platform (4) being fixedly connected to the testing frame (1), a placement groove (5) being provided inside the testing platform (4), and the transmission tube (3) being in communication with the placement groove (5); A recovery box (6), the recovery box (6) being located below the testing platform (4), and the recovery box (6) being fixed to the testing frame (1); A clamping mechanism (7), the clamping mechanism (7) being located in the testing platform (4), and the clamping mechanism (7) cooperating with the placement slot (5) to limit the position of the steel tape measure; A regulating mechanism (8), wherein the regulating mechanism (8) is located in the detection platform (4), the clamping mechanism (7) fixes the unfolded steel tape measure in the placement groove (5), and the regulating mechanism (8) intermittently controls the grit to generate sliding friction with the surface of the steel tape measure when the grit impacts the surface of the steel tape measure; The regulating mechanism (8) comprises a silicon capsule (80) fixedly connected to the inner wall of the placement groove (5), the silicon capsule (80) being located below the transmission tube (3), an extrusion block (81) being provided on the inner side of the silicon capsule (80), a sliding groove (82) being slidably connected to the extrusion block (81) being provided on the inner wall of the detection platform (4), a driving member (83) being provided on the inner side of the extrusion block (81) for regularly driving the extrusion block (81) to slide on the inner wall of the detection platform (4), and a control member (84) for controlling the closure and connection of the transmission tube (3) being provided above the detection platform (4); The extrusion block (81) is convex in an arc shape on one side close to the silicon capsule (80), and the convex side of the extrusion block (81) can fit with the inner wall of the placement groove (5); The driving member (83) comprises a connecting rod 1 (85) fixedly connected to the extrusion block (81); a connecting rod 2 (86) is arranged outside the connecting rod 1 (85); the connecting rod 1 (85) and the connecting rod 2 (86) are respectively slidably connected to the inner wall of the detection platform (4); one end of the connecting rod 1 (85) is inserted into the inner wall of the connecting rod 2 (86) and is slidably connected to the inner wall of the connecting rod 2 (86); a compression spring (87) is fixedly connected to one end of the connecting rod 1 (85) close to the connecting rod 2 (86); the compression spring (87) is located inside the connecting rod 2 (86); a servo motor (88) is installed on the inner wall of the detection platform (4); an output end of the servo motor (88) is fixedly connected to the end of the connecting rod 2 (86); The control member (84) comprises a support frame (89) fixed on the detection platform (4), the support frame (89) being wrapped around the outside of the transmission tube (3), an electric telescopic rod (810) being installed on the inner wall of the support frame (89), a control switch 1 (811) and a control switch 2 (812) for controlling the extension and retraction of the electric telescopic rod (810) being installed at the upper and lower ends of the sliding groove (82), respectively, a control panel (813) being fixedly connected to the end of the electric telescopic rod (810), and the control panel (813) being divided into a closed portion (814) and a connecting portion (815); The connecting portion (815) has a triangular cross section; The inner wall of the second connecting rod (86) is provided with an adjusting member (816) for adjusting the elastic force of the compression spring (87), the adjusting member (816) comprising a piston plate (817) fixedly connected to the compression spring (87), the piston plate (817) being slidably connected to the inner wall of the second connecting rod (86), an air pump (818) being installed on the outer side of the detection platform (4), an air supply pipe (819) being connected between the air pump (818) and the second connecting rod (86), the air supply pipe (819) being slidably connected to the inner wall of the detection platform (4), and a pressure sensor (820) for detecting the internal air pressure of the second connecting rod (86) being installed on the inner wall of the second connecting rod (86).

2. The wear-resistant detection device for a steel tape measure according to claim 1, characterized in that: The placement groove (5) is arranged obliquely, and the surface of the placement groove (5) is in a concave arc shape.

3. The wear-resistant detection device for a steel tape measure according to claim 1, characterized in that: The clamping mechanism (7) comprises a connecting block (70) located on the inner wall of the placement groove (5); a rubber block (71) is fixedly connected to the side of the connecting block (70) close to the arc surface of the placement groove (5); the surface of the rubber block (71) is an arc-shaped protrusion; a moving member (72) is provided on the side of the connecting block (70) away from the rubber block (71); the moving member (72) drives the connecting block (70) to approach the concave arc surface of the placement groove (5).

4. The wear-resistance detection device for a steel tape measure according to claim 3, characterized in that: The moving member (72) comprises a moving block (73) fixedly connected to the connecting block (70), the moving block (73) being slidably connected to the inner wall of the detection platform (4), a limiting block (74) being fixedly connected to the outer side of the moving block (73), the limiting block (74) being slidably connected to the inner wall of the detection platform (4), a spring sheet (75) being fixedly connected to the outer side of the limiting block (74), the spring sheet (75) being fixedly connected to the inner wall of the detection platform (4), an oblique end (76) being provided at one end of the moving block (73) away from the connecting block (70), an adjusting block (77) being abutted against the outer side of the oblique end (76) of the moving block (73), the adjusting block (77) being slidably connected to the inner wall of the detection platform (4), an adjusting handle (78) being rotatably connected to the top of the adjusting block (77), the adjusting handle (78) penetrating the detection platform (4) and communicating with the outside, the adjusting handle (78) being threadedly connected to the inner wall of the detection platform (4).

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