Laser measuring device for detecting tensile strength of steel cable

Abstract

The invention relates to the technical field of detection devices, in particular to a laser measurement device for detecting the tensile strength of a steel cable, which comprises a base, a bracket is fixed at the top of the base, a link plate is fixed at the output end of a telescopic rod, two square boxes are arranged at the bottom of the link plate, and pushing pieces are arranged on the inner sides of the two square boxes. Two sliding rods are arranged at the bottom of each square box, supporting plates are fixed to the sides, away from each other, of the two sliding rods, moving plates are slidably connected to the outer sides of the two sliding rods, pop-up pieces are arranged on the inner sides of the moving plates, conical heads are arranged on one sides of the pop-up pieces, clamping plates are fixed to the sides, close to each other, of the two clamping rods, and push plates are arranged on the two sides of the two square boxes. The link plate is slidably clamped to the inner side of the support. Through cooperation of all the components and the laser sensor, multi-dimensional, partitioned and point-divided detection of a sample is achieved, the length deformation quantity of the sample in a unit interval and the diameter deformation quantity of a sampling point can be detected, and the steel cable can be comprehensively and accurately evaluated.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and more particularly to a laser measuring device for detecting the tensile strength of steel cables. Background Art

[0002] Elevator steel cables need to withstand cyclic loads and dynamic stresses. Tensile strength detection devices (such as electronic universal testing machines and ultrasonic flaw detectors) can accurately measure parameters such as breaking strength and elongation rate, and detect internal cracks, wear or corrosion defects in the steel wire ropes in advance. National standards (such as GB8903-88) require that the safety factor of elevator steel cables ≥ 12. The detection device provides objective data support to ensure that the operating unit complies with regulations such as the "Special Equipment Safety Law".

[0003] The steel cable tensile strength detection device plays a crucial role in the quality detection of steel cables. At the safety level, it can accurately detect the tensile strength of the steel cable, discover potential strength defects and hidden dangers in advance, avoid the fracture of the steel cable during the elevator lifting process due to insufficient strength, and effectively protect the safety of personnel and property. In the production process, it helps the manufacturer strictly control the quality of the steel cable, provides data support for optimizing the production process, and promotes the improvement of product quality. For the user, it can select suitable steel cables based on the detection results and reduce the risk of using unqualified products. From the perspective of industry standards, this device helps enterprises meet relevant safety standards and quality specifications, promotes the healthy development of the entire elevator industry, and becomes an important line of defense for ensuring quality and safety throughout the life cycle of the steel cable.

[0004] Chinese Patent with publication number CN119000314A discloses a steel wire rope tensile strength detection device. During the detection process, when the tensile force on the steel wire rope gradually increases, it will cause the pressure exerted by the conical part on the conical opening to also gradually increase, making the clamping force on the end of the steel wire rope proportional to the tensile force on the steel wire rope. Therefore, it can effectively avoid the situation where the end of the steel wire rope slips off and the detection cannot be carried out, and the steel wire rope is convenient to fix, with better use effects.

[0005] In the prior art, most of the steel cable tensile strength detection devices are simply used to detect the tensile strength of steel cables. It is necessary to manually cooperate with other tools to detect the deformation of the sample, which is not convenient for detecting the length deformation of the unit interval of the sample and the diameter deformation of the sampling point. This will lead to the inability to comprehensively understand the elongation characteristics of the steel cable when it is stressed, making it difficult to accurately judge its elasticity and toughness, incomplete detection data, and thus deviation in the overall mechanical property evaluation of the steel cable. It is also difficult to detect subtle internal damages of the steel cable, reducing the accuracy of the detection results. At the same time, because it is impossible to effectively compare steel cables produced by different batches and manufacturers, it is difficult to judge whether they meet the usage requirements, and it is also impossible to provide key data for manufacturers to improve the process, which is not conducive to the quality improvement of steel cables. More seriously, during the actual elevator lifting operation, it is impossible to accurately predict the remaining service life and safe bearing capacity of the steel cable, and serious safety accidents may be caused due to excessive deformation of the steel cable or undetected internal damages in time, threatening the safety of personnel and property.

[0006] Therefore, a laser measuring device that can use a laser sensor to detect the tensile strength of a steel cable is needed to solve the problem of being inconvenient to detect the length deformation of the unit interval of the sample and the diameter deformation of the sampling point. Summary of the Invention

[0007] Aiming at solving the problem that it is necessary to manually cooperate with other tools to detect the deformation of the sample and it is impossible to comprehensively understand the elongation characteristics of the steel cable when it is stressed, the present application provides a laser measuring device for detecting the tensile strength of a steel cable.

[0008] The technical solution of the present invention is: A laser measuring device for detecting the tensile strength of a steel cable, including a base, a bracket is fixed on the top of the base, a telescopic rod is fixed on the top of the bracket, a link plate is fixed at the output end of the telescopic rod, two square boxes are arranged at the bottom of the link plate, a pushing member is arranged inside each of the two square boxes, a rotating rod is arranged on one side of the two pushing members, two sliding rods are arranged at the bottom of the square box close to the telescopic rod, a support plate is fixed on each side of the two sliding rods away from each other, a moving plate is slidably connected to the outside of each of the two sliding rods, a pop-up member is arranged inside the moving plate, a tapered head is arranged on one side of the pop-up member, a clamping rod is arranged on each side of the square box close to the telescopic rod, a clamping plate is fixed on each side of the two clamping rods close to each other, and a push plate is arranged on each side of the two square boxes; The pushing member is configured to fix the steel cable by rotating the rotating rod and drive the clamping rod and the push plate to move; The pop-up member is configured to pop up the tapered head after the rotating rod is rotated to fix the steel cable; The laser sensing component is configured to perform multi-dimensional, partitioned, and point-by-point detection on the length deformation of the unit interval of the sample and the diameter deformation of the sampling point.

[0009] Furthermore, the link plate is slidably clamped inside the bracket, one of the square boxes is fixed on the side of the link plate close to the base, the other square box is fixed on the side of the base close to the link plate, and vertical grooves are opened on each side of the two square boxes.

[0010] Further, the pushing member includes a threaded rod, the threaded rod is connected to the other side of the square box by a thread, the rotating rod is fixed to one end of the threaded rod away from the square box, the other end of the threaded rod is rotatably connected with a fixing plate, both sides of the fixing plate are fixed with side plates, tooth teeth are fixed to the sides of the two side plates away from the moving plate, and guiding holes are respectively formed through one side of each side plate.

[0011] Further, screws are rotatably connected through both sides of the two square boxes, a gear is fixed to one end of each screw located inside the square box, and the gears are meshed with the tooth teeth. The other ends of the two screws close to the air cylinder are both connected with an upper plate by a thread, the pushing plate is rotatably connected to the bottom of the upper plate, the other ends of the two screws close to the base are both connected with a lower plate by a thread, the pushing plate is slidably connected to the outside of the lower plate, and the pushing plate is located inside the limiting plate.

[0012] Further, guiding rods are slidably connected to the inner sides of the two vertical grooves close to the telescopic rod. One ends of the two guiding rods close to each other are located inside the two guiding holes close to the telescopic rod. Two clamping rods are respectively fixed to the other ends of the two guiding rods. Supports are fixed to both sides of the square box close to the base, and the two clamping rods are slidably connected to the outside of the two supports.

[0013] Further, the ejecting member includes two back plates, springs are fixed to one side of the two back plates, the other end of each spring is fixed to the inner wall of the moving plate close to the conical head, connecting rods are fixed to the sides of the two back plates where the springs are fixed, the other ends of the two connecting rods are fixed with a bottom plate, the conical head is fixed to the side of the bottom plate away from the connecting rods, and a round rod is fixed to the side of the two back plates close to each other, and the round rod is located inside the clamping plate.

[0014] Further, the support rod is provided with three ends, namely two inclined ends and a vertical section. The round rod is located inside the vertical section. Side grooves are respectively formed through one side of the two sliding rods, and through holes are respectively formed through the bottoms of the two sliding rods.

[0015] Further, the laser sensing assembly includes a first laser sensor and a second laser sensor. The first laser sensor is respectively fixed through the top of each back plate, the second laser sensor is respectively fixed through the top of each moving plate, and another second laser sensor is also fixed through the top of the square box close to the base. The telescopic rod, the first laser sensor and the second laser sensor are all electrically connected to a processor.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) A laser measurement device for detecting the tensile strength of a steel cable according to the present invention uses a moving plate, a tapered head, and an ejecting member, and realizes multi-dimensional, partitioned, and point-by-point detection of a sample in cooperation with a laser sensor, enabling the present invention to detect the length deformation amount per unit interval and the diameter deformation amount of a sampling point of the sample. Compared with the prior art, the partitioned and point-by-point detection can comprehensively and accurately evaluate the deformation of the steel cable, accurately locate local defects, meet the requirements of complex working conditions, detect the length deformation amount per unit interval, measure the overall mechanical properties, compare the quality of different steel cables, predict the service life, detect the diameter deformation amount of the sampling point, find internal damage, evaluate the force uniformity, and verify the manufacturing process of the steel cable. These functions provide strong support for ensuring the quality of the steel cable and the safety of elevator lifting operations, and comprehensively assist the production and application in the field related to the steel cable.

[0018] (2) A laser measurement device for detecting the tensile strength of a steel cable according to the present invention uses a moving plate, a pushing member, and a tapered head, and can release and fix the moving plate and the tapered head by using the force for fixing and removing the steel cable sample, without an additional power source and complex control. When fixing or removing the steel cable, the operator can complete the relevant actions conveniently, simplifying the process, improving work efficiency, eliminating an independent driving device, reducing both energy consumption and manufacturing and maintenance costs, and ensuring the detection accuracy. Since the force for fixing and removing the steel cable is stable and repeatable, the fixed states of the moving plate and the tapered head are the same each time of detection, the detection environment is consistent, and the data is more accurate and stable, reducing errors.

[0019] (3) A laser measurement device for detecting the tensile strength of a steel cable according to the present invention uses a clamping plate and a clamping rod, which can prevent the spring from pulling the round rod to squeeze the push plate when idle, keep the push plate vertical, ensure that when restoring to the original position after the test, the round rod can accurately restore to the original position, make the detection environment consistent, the data more accurate and stable, and reduce errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of a laser measurement device for detecting the tensile strength of a steel cable provided by the present invention;

[0022] Figure 2 It is a three-dimensional structure schematic diagram of a square box of a laser measurement device for detecting the tensile strength of a steel cable provided by the present invention;

[0023] Figure 3 It is a three-dimensional structure schematic diagram of a rotating rod member of a laser measurement device for detecting the tensile strength of a steel cable provided by the present invention;

[0024] Figure 4 is Figure 2 an enlarged view of part A;

[0025] Figure 5 Schematic three-dimensional structure diagram of the pusher for a laser measuring device for detecting the tensile strength of a steel cable provided by the present invention;

[0026] Figure 6 Schematic three-dimensional structure diagram of the sliding rod for a laser measuring device for detecting the tensile strength of a steel cable provided by the present invention;

[0027] Figure 7 Schematic three-dimensional structure diagram of the moving plate for a laser measuring device for detecting the tensile strength of a steel cable provided by the present invention;

[0028] Figure 8 Schematic three-dimensional structure diagram of the lower plate for a laser measuring device for detecting the tensile strength of a steel cable provided by the present invention;

[0029] Figure 9 Schematic three-dimensional structure diagram of the push plate for a laser measuring device for detecting the tensile strength of a steel cable provided by the present invention;

[0030] Figure 10 Schematic three-dimensional structure diagram of the support for a laser measuring device for detecting the tensile strength of a steel cable provided by the present invention;

[0031] Figure 11 Schematic three-dimensional structure diagram of the clamping rod for a laser measuring device for detecting the tensile strength of a steel cable provided by the present invention;

[0032] Figure 12 Schematic three-dimensional structure diagram of the support plate for a laser measuring device for detecting the tensile strength of a steel cable provided by the present invention.

[0033] In the figure: 1, base; 2, bracket; 3, telescopic rod; 4, link plate; 5, square box; 51, vertical groove; 7, pusher; 71, threaded rod; 72, fixing plate; 73, side plate; 74, teeth; 75, guiding hole; 8, moving plate; 9, cone head; 91, bottom plate; 92, connecting rod; 93, back plate; 94, round rod; 10, rotating rod; 11, sliding rod; 111, through hole; 112, side groove; 12, clamping rod; 121, clamping plate; 122, support; 123, guiding rod; 13, push plate; 131, lower plate; 132, upper plate; 133, lead screw; 134, gear; 14, support plate. Detailed implementation manners

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the present invention in combination with the accompanying drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the accompanying drawings is only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention.

[0035] Embodiment: As Figures 1-12 shown, a laser measurement device for detecting the tensile strength of a steel cable includes a base 1. A bracket 2 is fixed on the top of the base 1. A telescopic rod 3 is fixed on the top of the bracket 2. The output end of the telescopic rod 3 is fixed with a link plate 4. Two square boxes 5 are arranged at the bottom of the link plate 4. Push members 7 are arranged inside both of the two square boxes 5. A rotating rod 10 is arranged on one side of the two push members 7. Two sliding rods 11 are arranged at the bottom of the square box 5 close to the telescopic rod 3. Support plates 14 are fixed on the sides of the two sliding rods 11 away from each other. Moving plates 8 are slidably connected to the outer sides of the two sliding rods 11. A pop-up member is arranged inside the moving plate 8. A tapered head 9 is arranged on one side of the pop-up member. Clamping rods 12 are arranged on both sides of the square box 5 close to the telescopic rod 3. Clamping plates 121 are fixed on the sides of the two clamping rods 12 close to each other. Push plates 13 are arranged on both sides of the two square boxes 5. The link plate 4 is slidably clamped inside the bracket 2. One of the square boxes 5 is fixed on the side of the link plate 4 close to the base 1, and the other square box 5 is fixed on the side of the base 1 close to the link plate 4. Vertical grooves 51 are opened on both sides of the two square boxes 5. The push member 7 is assembled to fix the steel cable by rotating the rotating rod 10 and drive the clamping rods 12 and the push plates 13 to move. The push member 7 includes a threaded rod 71. The threaded rod 71 is threadedly connected to the other side of the square box 5. The rotating rod 10 is fixed to the end of the threaded rod 71 away from the square box 5. The other end of the threaded rod 71 is rotatably connected to a fixing plate 72. Side plates 73 are fixed on both sides of the fixing plate 72. Tooth teeth 74 are fixed on the sides of the two side plates 73 away from the moving plate 8. A guiding hole 75 is penetrated through one side of each side plate 73.

[0036] In this embodiment, the staff places one end of the steel cable sample to be tested inside the square box 5 close to the base 1. The staff rotates the rotating rod 10 clockwise by hand. The rotating rod 10 drives the threaded rod 71 to rotate clockwise. The threaded rod 71 drives the fixing plate 72 to move along the inside of the square box 5 towards the side close to the steel cable sample through meshing, thereby fixing one end of the steel cable sample inside the square box 5 close to the base 1;

[0037] The staff places the other end of the steel cable sample to be tested inside the square box 5 near the telescopic rod 3. The staff rotates the rotating rod 10 clockwise by hand. The rotating rod 10 drives the threaded rod 71 to rotate clockwise. The threaded rod 71 drives the fixed plate 72 to move along the inner side of the square box 5 towards the side close to the steel cable sample through meshing, thereby fixing the other end of the steel cable sample inside the square box 5 near the base 1, and thus completing the fixation of the sample.

[0038] Specifically, screws are rotatably connected through both sides of the two square boxes 5. One end of each screw located inside the square box 5 is fixed with a gear 134, and the gear 134 meshes with the tooth 74. The other ends of the two screws near the air cylinder are threadedly connected with an upper plate 132. The push plate 13 is rotatably connected to the bottom of the upper plate 132. The other ends of the two screw rods 133 near the base 1 are threadedly connected with a lower plate 131. The push plate 13 is slidably connected to the outside of the lower plate 131. The push plate 13 is located inside the limiting plate. Guide rods 123 are slidably connected to the inside of the two vertical grooves 51 near the telescopic rod 3. One ends of the two guide rods 123 close to each other are located inside the two guide holes 75 near the telescopic rod 3. Two clamping rods 12 are respectively fixed to the other ends of the two guide rods 123. Supports 122 are fixed to both sides of the square box 5 near the base 1. The two clamping rods 12 are slidably connected to the outside of the two supports 122.

[0039] In this embodiment, when the staff fixes one end of the steel cable sample to be tested inside the square box 5 near the base 1, the fixed plate 72 drives the two side plates 73 to move. The two side plates 73 drive the two gears 134 to rotate clockwise through the teeth 74. The two gears 134 drive the two screw rods 133 to rotate clockwise. The two screw rods 133 drive the two upper plates 132 to move towards the side close to the square box 5 through meshing. The two upper plates 132 rotate relative to the two push plates 13, causing the push plate 13 to tilt. When the two upper plates 132 contact the square box 5, a three-dimensional space with a square cross-section is formed between the fixed plate 72 and the inside of the square box 5. At the same time, the two side plates 73 drive the two guide rods 123 to move towards the side close to the telescopic rod 3 along the direction of the vertical groove 51 through the two guide holes 75. The two guide rods 123 drive the two clamping rods 12 to move towards the telescopic rod 3. When the guide rod 123 contacts the top wall of the vertical groove 51, the clamping plate 121 completely moves out of the outside of the round rod 94, releasing partial restriction on the round rod 94;

[0040] When the other end of the steel cable sample to be tested is placed inside the square box 5 close to the telescopic rod 3, during this process, the fixed plate 72 drives the two side plates 73 to move. The two side plates 73 drive the two gears 134 to rotate forward through the teeth 74. The two gears 134 drive the two lead screws 133 to rotate forward. The two lead screws 133 drive the two lower plates 131 to move toward the side close to the square box 5 through the meshing action. The two upper plates 132 and the two push plates 13 rotate relative to each other. When the two upper plates 132 contact the square box 5, a three-dimensional space with a square cross-section is formed between the fixed plate 72 and the inner side of the square box 5. At this time, the push plate 13 is vertical, and the restriction on the round rod 94 is completely released.

[0041] Specifically, for the ejecting member, after the rotating rod 10 is assembled to fix the steel cable, the conical head 9 is ejected. The ejecting member includes two back plates 93. Springs are fixed on one side of each of the two back plates 93. The other end of each spring is fixed to the inner wall of the moving plate 8 close to the conical head 9. A connecting rod 92 is fixed on the side of each back plate 93 where the spring is fixed. The other ends of the two connecting rods 92 are fixed to a bottom plate 91. The conical head 9 is fixed to the side of the bottom plate 91 away from the connecting rod 92. A round rod 94 is fixed to the side of the two back plates 93 close to each other. The round rod 94 is located inside the clamping plate 121.

[0042] In this embodiment, under the action of the spring, the back plate 93 pushes the connecting rod 92 to move toward the side close to the sample. The two connecting rods 92 push the bottom plate 91 to move toward the side close to the sample. The bottom plate 91 pushes the conical head 9 to insert into the steel cable.

[0043] Specifically, the support rod 14 is provided with three ends, namely two inclined segments and one vertical segment. The round rod 94 is located inside the vertical segment. Side grooves 112 are respectively formed through one side of the two sliding rods 11. Through holes 111 are respectively formed through the bottom of the two sliding rods 11.

[0044] In this embodiment, after the detection is completed, the staff reversely rotates the two rotating rods 10 in sequence, so that the fixed plate 72 and the two side plates 73 return to their original positions. The two side plates 73 drive the two lead screws 133 to rotate reversely through the teeth 74. The lead screws 133 drive the upper plate 132 and the lower plate 131 to move toward the side away from the square box 5, so that the upper plate 132, the lower plate 131 and the push plate 13 return to their original positions. The push plate 13 pushes the round rod 94 to move along the inclined segment of the support plate 14 to the inside of the vertical segment and return to its original position. At the same time, the side plate 73 drives the guide rod 123 to move to contact the bottom wall of the vertical groove 51, and the tested sample is removed. Then, the staff controls the output end of the telescopic rod 3 to return to its original position through the processor, so that the clamping plate 121 moves to fit with the round rod 94 to restrict the round rod 94.

[0045] Specifically, the laser sensing assembly is assembled to perform multi-dimensional, partitioned, and point-by-point detection on the length deformation of the unit interval of the sample and the diameter deformation of the sampling point. The laser sensing assembly includes a first laser sensor and a second laser sensor. A first laser sensor is fixedly penetrated through the top of each back plate 93, and a second laser sensor is fixedly penetrated through the top of each moving plate 8. Another second laser sensor is fixedly penetrated through the top of the square box 5 near the base 1. The telescopic rod 3, the first laser sensor, and the second laser sensor are all electrically connected to a processor.

[0046] In this embodiment, the first laser sensor and the second laser sensor can emit laser pulses to the target, measure the time from the emission of the laser pulse to its reflection by the target and being received, and calculate the distance. The second laser sensor can measure the distance between it and the top of the moving plate 8 or the bottom of the top wall of the bracket 2, measure the distance between the test ends before stretching and report it to the processor. The first laser sensor on the same plane measures the distance between the back plate 93 and the inner wall of the moving plate 8 near the bottom plate 91, measures the initial diameter of the steel cable and reports it to the processor. Finally, it is stored, transmitted, and processed in the Internet of Things, so that the present invention can detect the length deformation of the unit interval of the sample and the diameter deformation of the sampling point.

[0047] At the same time, in order to reduce the influence of the gap between the steel cable groups on the detection result, during the detection process, the first laser sensor and the second laser sensor will continuously sample and detect, form a database, and report it to the processor for processing and recording.

[0048] Working principle: Initial state reference Figures 1-12 , the staff places one end of the steel cable sample to be tested inside the square box 5 near the base 1, and the staff rotates the rotating rod 10 clockwise by hand, thereby fixing one end of the steel cable sample inside the square box 5 near the base 1.

[0049] During this process, the fixed plate 72 drives the two side plates 73 to move, tilting the push plate 13. At the same time, the two clamping rods 12 move towards the telescopic rod 3. When the guiding rod 123 contacts the top wall of the vertical groove 51, the clamping plate 121 completely moves out of the outside of the round rod 94, releasing part of the restriction on the round rod 94.

[0050] The staff places the other end of the steel cable sample to be tested inside the square box 5 near the telescopic rod 3, and the staff rotates the rotating rod 10 clockwise by hand, thereby fixing the other end of the steel cable sample inside the square box 5 near the base 1, thus completing the fixation of the sample. At this time, the processor controls the second laser sensor to measure the distance between it and the top of the moving plate 8 or the bottom of the top wall of the bracket 2, measures the distance between the test ends before stretching and reports it to the processor.

[0051] During this process, the fixing plate 72 drives the two side plates 73 to move. When the two upper plates 132 contact the square box 5, the push plate 13 is vertical, completely releasing the restriction on the round rod 94;

[0052] The back plate 93 pushes the connecting rod 92 to move towards the side close to the sample under the action of the spring. The bottom plate 91 pushes the tapered head 9 into the inside of the steel cable. After the back plate 93 stops moving, the processor controls the laser sensor I in the same plane to measure the distance between the back plate 93 and the inner wall of the moving plate 8 close to the bottom plate 91, determines the initial diameter of the steel cable and reports it to the processor;

[0053] The staff controls the output end of the telescopic rod 3 to contract through the controller to stretch the sample. During this process, the length and diameter of the sample change. The sample drives the moving plate 8 to move through the tapered head 9. The back plate 93 always squeezes the tapered head 9 towards the sample through the spring. When the tensile force applied by the telescopic rod 3 reaches the required standard, if the sample breaks, it is unqualified. If the sample does not break, the laser sensor I and the laser sensor II measure the distance between the respective test ends before stretching and the distance between the back plate 93 and the inner wall of the moving plate 8 close to the bottom plate 91 on each horizontal plane again, and report it to the processor. The processor summarizes the deformation lengths of the respective test ends and the deformation amounts of the diameters on each plane. After being processed by the processor, the staff comprehensively determines whether it is qualified.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laser measuring device for detecting the tensile strength of a steel cable, comprising a base (1) and a laser sensor assembly, wherein a bracket (2) is fixed on the top of the base (1), and characterized in that: A telescopic rod (3) is fixed on the top of the bracket (2), a link plate (4) is fixed on the output end of the telescopic rod (3), two square boxes (5) are arranged at the bottom of the link plate (4), a pushing member (7) is arranged on the inner side of the two square boxes (5), a rotating rod (10) is arranged on one side of the two pushing members (7), two sliding rods (11) are arranged at the bottom of the square box (5) close to the telescopic rod (3), a supporting plate (14) is fixed on the side of the two sliding rods (11) away from each other, a moving plate (8) is slidably connected to the outer side of the two sliding rods (11), a pop-up member is arranged on the inner side of the moving plate (8), a cone head (9) is arranged on one side of the pop-up member, a clamping rod (12) is arranged on both sides of the square box (5) close to the telescopic rod (3), a clamping plate (121) is fixed on the side close to the two clamping rods (12), and a push plate (13) is arranged on both sides of the two square boxes (5); A pusher (7) is configured to fix the steel cable by rotating the rotating rod (10) and to drive the clamping rod (12) and the push plate (13) to move; An ejector, which is configured to eject the cone head (9) after the rotating rod (10) is rotated to fix the steel cable; The laser sensing assembly is configured to perform multi-dimensional, partitioned, and point-by-point detection on the length deformation variable of a unit interval of a sample and the diameter deformation variable of a sampling point.

2. The laser measuring device for detecting the tensile strength of a steel cable according to claim 1, characterized in that: The link plate (4) is slidably engaged with the inner side of the bracket (2), one of the square boxes (5) is fixed to a side of the link plate (4) close to the base (1), and the other square box (5) is fixed to a side of the base (1) close to the link plate (4), and vertical grooves (51) are provided on both sides of the two square boxes (5).

3. The laser measuring device for detecting the tensile strength of a steel cable according to claim 2, characterized in that: The pushing member (7) comprises a threaded rod (71), the threaded rod (71) being connected to the other side of the square box (5) by means of a thread, the rotating rod (10) being fixed to one end of the threaded rod (71) away from the square box (5), the other end of the threaded rod (71) being rotatably connected to a fixing plate (72), both sides of the fixing plate (72) being fixed with side plates (73), both sides of the two side plates (73) being fixed with teeth (74) away from the moving plate (8), and a guide hole (75) being provided through one side of each side plate (73).

4. The laser measuring device for detecting the tensile strength of a steel cable according to claim 3, characterized in that: Both sides of the two square boxes (5) are penetrated by a lead screw which is rotatably connected, and a gear (134) is fixed to one end of each lead screw located inside the square box (5), and the gear (134) and the tooth (74) are meshed, and the other ends of the two lead screws close to the cylinder are connected to the upper plate (132) through threads, and the push plate (13) is rotatably connected to the bottom of the upper plate (132), and the other ends of the two lead screws (133) close to the base (1) are connected to the lower plate (131) through threads, and the push plate (13) is slidably connected to the outer side of the lower plate (131), and the push plate (13) is located on the inner side of the limiting plate.

5. The laser measuring device for detecting the tensile strength of a steel cable according to claim 4, characterized in that: The two vertical grooves (51) close to the telescopic rod (3) are both slidably connected to guide rods (123) on the inner side, the adjacent ends of the two guide rods (123) are located on the inner side of the two guide holes (75) close to the telescopic rod (3), the two clamping rods (12) are respectively fixed to the other ends of the two guide rods (123), and the two sides of the square box (5) close to the base (1) are fixed with supports (122), and the two clamping rods (12) are slidably connected to the outer sides of the two supports (122).

6. The laser measuring device for detecting the tensile strength of a steel cable according to claim 5, characterized in that: The pop-up member comprises two back plates (93), one side of the two back plates (93) is fixed with a spring, the other end of each spring is fixed to the inner wall of the movable plate (8) close to the cone head (9), the side of each back plate (93) fixed with the spring is fixed with a connecting rod (92), the other ends of the two connecting rods (92) are fixed with a bottom plate (91), the cone head (9) is fixed to the side of the bottom plate (91) away from the connecting rod (92), and the side of the two back plates (93) close to each other is fixed with a round rod (94), and the round rod (94) is located on the inner side of the clamping plate (121).

7. The laser measuring device for detecting the tensile strength of a steel cable according to claim 6, characterized in that: The support rod (14) is provided with three ends, namely two inclined sections and a vertical section. The round rod (94) is located inside the vertical section. A side groove (112) is provided through one side of the two slide rods (11), and a through hole (111) is provided through the bottom of the two slide rods (11).

8. The laser measuring device for detecting the tensile strength of a steel cable according to claim 7, characterized in that: The laser sensor assembly comprises a laser sensor 1 and a laser sensor 2. The top of each back plate (93) is fixedly penetrated with a laser sensor 1, the top of each movable plate (8) is fixedly penetrated with a laser sensor 2, and the top of the square box (5) close to the base (1) is also fixedly penetrated with another laser sensor 2. The telescopic rod (3), the laser sensor 1 and the laser sensor 2 are all electrically connected to a processor.

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