A lifeline safety detection system

Abstract

The application relates to the technical field of safety protection product detection, in particular to a lifeline safety detection system which comprises a first track and a first trolley arranged on the first track, the first trolley comprises a chassis and a trolley frame arranged on the upper side of the chassis, a first electric hoist is arranged on the upper portion of the trolley frame, a connecting assembly is hung below the first electric hoist, the lower end of the connecting assembly is connected with a measured lifeline, a positioning sleeve is arranged on the connecting assembly, the chassis is provided with a first equipment layer and a second equipment layer, the positioning sleeve is fixed between the first equipment layer and the second equipment layer, and an anti-falling device for movably clamping the connecting assembly is arranged on the first equipment layer. The application connects the end portion of the lifeline with the first trolley, controls the movement of the first trolley, changes the node distance between the two ends of the lifeline, and adjusts the mode more conveniently and safely. The connecting assembly is arranged between the lifeline and the first electric hoist of the hoisting equipment, then the connecting assembly is limited by the anti-falling device, and the hoisting equipment is protected.

Description

Technical Field

[0001] This application relates to the technical field of safety protection product testing, and in particular to a lifeline safety testing system. Background Technology

[0002] A lifeline is a linear guide rail fixed at both ends to a building or structure to connect fall protection equipment for workers in aerial operations. When a worker moves, the upper node of the safety rope attached to the worker's back can move along the horizontal lifeline, thus ensuring the safety of workers within a certain range. Lifelines can be made of flexible guide rails such as steel wire rope, fiber rope, or webbing, or rigid guide rails such as stainless steel or aluminum alloy. Their load-bearing capacity and the minimum distance between the lowest point and the ground after a fall must be strictly tested to meet the relevant quality requirements.

[0003] Current testing techniques involve first connecting the lifting equipment to the lifeline on the ground, then using the lifting equipment to raise the lifeline to a certain height for testing. When the node spacing at both ends of the lifeline needs adjustment, the current technique requires workers to climb onto the equipment for adjustment, which is inconvenient and dangerous. While using lifting equipment to fix the lifeline has the advantages of easier operation and height control on the ground, the equipment is subjected to direct tensile force from the lifeline during testing, leading to wear and tear. Furthermore, if the lifting equipment's limit switches are not tight, height deviations at both ends of the lifeline can occur, causing excessive tilting and affecting the test results. Summary of the Invention

[0004] To facilitate the adjustment of the node spacing at both ends of the lifeline and to improve the service life of the detection system, this application provides a lifeline safety detection system, which adopts the following technical solution:

[0005] A lifeline safety detection system includes a frame, a lifeline tensioning device, and a counterweight hoisting device. The lifeline tensioning device is mounted on the frame and includes a first connecting unit for connecting one end of the lifeline to be tested. The counterweight hoisting device has a counterweight block connected to the lifeline to be tested. The first connecting unit includes a first track and a first trolley mounted on the first track. The first trolley includes a chassis and a frame mounted on the upper side of the chassis. A first electric hoist is mounted on the upper part of the frame, and a connecting component is suspended below the first electric hoist. The lower end of the connecting component is connected to the lifeline to be tested. A positioning sleeve is fitted onto the connecting component. The chassis has a first equipment layer and a second equipment layer. The positioning sleeve is fixed between the first equipment layer and the second equipment layer. A fall arrestor that can be movably clamped on the first equipment layer is provided.

[0006] By adopting the above technical solution, the counterweight lifting device lifts the counterweight block to a certain height and then releases it, allowing it to fall naturally. As the counterweight block falls, the safety belt on it pulls the lifeline under test, enabling performance testing of the lifeline. During testing, the movement of the first pulley, connected to one end of the lifeline, is controlled, causing the node spacing at both ends of the lifeline to change, allowing for convenient and quick adjustment. Simultaneously, a connecting component serves as the connection point between the lifeline and the lifting equipment. A positioning sleeve guides and positions the connecting component, and then an anti-fall device restricts the connecting component, preventing direct impact from the lifeline on the first electric hoist and improving equipment lifespan.

[0007] Optionally, the fall arrestor includes a first power cylinder and a second power cylinder symmetrically arranged. The first power cylinder and the second power cylinder are fixed to the first equipment layer. A first fixing member and a second fixing member are provided between the first power cylinder and the second power cylinder. The first fixing member and the second fixing member are fixed to the first equipment layer. Two guide rods are symmetrically arranged between the first fixing member and the second fixing member. A first moving block and a second moving block are passed through the two guide rods. The piston end of the first power cylinder passes through the first fixing member and connects to the corresponding first moving block. The first moving block has a vertically arranged snap-fit ​​groove on the side near the first fixing block. The piston end of the first power cylinder has a snap-fit ​​connector. The snap-fit ​​connector is inserted into the snap-fit ​​groove from the side. The other side of the first moving block has a recess. The first power cylinder and the second power cylinder respectively push the first moving block and the second moving block to clamp the connecting component in the recess. The end of the connecting component extending out of the recess has a shoulder.

[0008] By adopting the above technical solution, when the lifeline is hoisted to the predetermined height, the positioning sleeve guides and positions the connecting component. Then, the first power cylinder and the second power cylinder are controlled to push the first moving block and the second moving block to clamp the connecting component. The shoulder of the connecting component is stuck on the upper side of the first moving block and the second moving block, so that the connecting component is fixed. The structure of the first fixing part, the second fixing part, and the guide rod improves the overall strength of the fall protection device, making the equipment more durable, less prone to deformation and wear, and with a longer service life.

[0009] Optionally, the first or second fixing member is provided with multiple sets of first sensors for collecting height information of the connecting component; a first limit switch is provided above the connecting component, and the first limit switch is fixed to the first equipment layer by a bracket. When the connecting component contacts the first limit switch, the first electric hoist stops its lifting action, and the first power cylinder and the second power cylinder work to clamp the connecting component.

[0010] By adopting the above technical solution, the first sensor collects and sends the height information of the connecting component to the control panel, facilitating real-time monitoring of the connecting component's position, timely detection of misalignment, and improved detection accuracy. The first limit switch enables the coordinated operation of the first electric hoist, the first power cylinder, and the second power cylinder, improving the automation level of the equipment.

[0011] Optionally, the second equipment layer is provided with a first traveling device and a parking device. The first traveling device is used to drive the first trolley to move on the first track. The parking device includes a second sensor and a forward power cylinder. The piston rod of the forward power cylinder is connected to a first limiting rod. The left rail of the first track is provided with a plurality of positioning holes. The plurality of positioning holes are arranged at equal intervals along the length of the left rail. The second sensor is located on the horizontal side of the first limiting rod. The distance between the second sensor and the first limiting rod is an integer multiple of the distance between two adjacent positioning holes. When the second sensor is facing a positioning hole, the forward power cylinder pushes the first limiting rod into the corresponding positioning hole to complete the parking action.

[0012] By adopting the above technical solution, when parking is required, the second sensor detects that its signal transmission direction is facing the positioning hole through photoelectric principles. Since the first limiting rod and the second sensor are exactly n positioning hole distances apart, the first limiting rod is also exactly facing the positioning hole at this time. At this time, the forward power cylinder is controlled to push the first limiting rod into the positioning hole to complete parking. This parking structure makes the first trolley firmly stop on the first track, and the first trolley has stronger resistance to the tension of the lifeline, preventing displacement, slippage, and derailment.

[0013] Optionally, a rocker arm is hinged to the end of the piston rod of the forward power cylinder, the middle of the rocker arm is hinged to the second equipment layer, and the first limiting rod and the second limiting rod are respectively connected to both sides of the rocker arm by a synchronous rope.

[0014] By adopting the above technical solution, the forward power cylinder pushes the rocker arm, simultaneously controlling the first and second limit rods to fix the left and right rails of the first track. When the forward power cylinder pushes back, the first and second limit rods are pulled back to their original positions by the synchronous rope. One power cylinder achieves synchronous control of the two limit rods, which not only reduces equipment costs, but also makes the first trolley more stable and improves the parking effect.

[0015] Optionally, the upper end of the connecting component is provided with a chain mounting groove for connecting the first chain of the first electric hoist, and the side wall of the chain mounting groove is provided with a countersunk hole for securing the first chain.

[0016] By adopting the above technical solution, the first chain is locked in the chain mounting groove by passing the bolt through the countersunk hole. This not only results in high connection strength, but also a simple connection process and convenient replacement.

[0017] Optionally, it also includes a mobile power supply device, which includes a seamless current collector and a sliding contact line. The seamless current collector is located on the upper part of the frame of the first trolley, and the sliding contact line is located on the upright frame. The seamless current collector is electrically connected to the sliding contact line.

[0018] By adopting the above technical solution, a power supply device using a sliding contact line and a seamless current collector can provide stable power for the operation of the first trolley, and also simplifies the structure, making the equipment easier to use and maintain.

[0019] Optionally, the counterweight hoisting device includes a second track on the upper part of the upright, a second traveling device on the second track, and a counterweight block. The second traveling device is equipped with a second electric hoist, and the second chain of the second electric hoist is connected to the counterweight block. One end of the safety belt is connected to the counterweight block, and the other end of the safety belt is connected to the lifeline being measured.

[0020] By adopting the above technical solution, the counterweight lifting device is set on the second track, which makes it easier to adjust the falling position of the counterweight block, improves the detection flexibility of the equipment, and makes it more practical.

[0021] Optionally, one end of the safety belt is connected in parallel with a second chain on the upper part of the counterweight. The counterweight consists of a base and several counterweight plates. The second chain passes through the counterweight plates and connects to the base. The counterweight plates are housed in a counterweight box, which is movably connected to the upright frame. Both the counterweight plates and the counterweight box have slots on their peripheral walls for the safety belt to pass through. The counterweight box has a side groove on its peripheral wall. The lower part of the counterweight plates has a recess. A counterweight adjustment device is provided on one side of the counterweight box. The counterweight adjustment device includes a vertical frame with several folding rods corresponding to each counterweight plate on the vertical frame. The middle part of each folding rod is hinged to the vertical frame. A screw pushing device is provided on one side of each folding rod. When one end of the folding rod is pushed by the screw pushing device, the other end of the folding rod rotates from the side groove of the counterweight box and abuts against the recess of the corresponding counterweight plate.

[0022] By adopting the above technical solution, the lead screw pushing device pushes the bending rod, and one end of the bending rod cooperates with the stop to restrict the corresponding counterweight plate in the counterweight box. When the second electric hoist releases the counterweight block, only the counterweight plate that is not restricted by the bending rod will fall with the base, thereby achieving the purpose of adjusting the weight of the counterweight block, reducing the operation steps of replacing the counterweight block and improving the detection efficiency.

[0023] Optionally, one end of a traction rope is connected to the bottom of the base, and the other end of the traction rope is connected to a counterweight box. A convex pulley is wound around the traction rope, and the convex pulley is driven to rotate by a drive motor.

[0024] By adopting the above technical solution, when the base, i.e. the counterweight, falls to the lowest point, the convex pulley pulls the base, causing the base to swing, in order to simulate the situation of a person being swayed by the wind at high altitude, and to test the working condition of the lifeline under repeated pulling.

[0025] In summary, this application includes at least one of the following beneficial technical effects: This application connects the end of the lifeline via a first pulley, controlling the movement of the first pulley to change the node spacing at both ends of the lifeline, making the adjustment method more convenient and safer. A connecting component is installed between the lifeline and the first electric hoist of the lifting equipment. When the lifeline is hoisted to a predetermined height, a positioning sleeve guides and positions the connecting component. Then, an anti-fall device is used to restrict the connecting component, preventing it from becoming displaced and falling. Simultaneously, it avoids direct tensile impact from the lifeline on the first electric hoist, thus improving the equipment's service life. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0027] Figure 2 This is a schematic diagram of the first trolley structure in Embodiment 1 of this application.

[0028] Figure 3 yes Figure 2 Enlarged view of part A in the image.

[0029] Figure 4 This is a schematic diagram of the second device layer structure in Embodiment 1 of this application.

[0030] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0031] Figure 6 This is a cross-sectional view of the structure of Embodiment 2 of this application.

[0032] Figure 7 This is a schematic diagram of the parking device structure in Embodiment 2 of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Erecting the frame;

[0035] 2. The lifeline being measured;

[0036] 3. First track; 31. Positioning hole;

[0037] 4. First trolley; 41. Chassis; 42. First equipment layer; 421. First power cylinder; 422. Snap-fit ​​connector; 423. Second power cylinder; 424. First fixing component; 425. Second fixing component; 426. Guide rod; 427. First moving block; 428. Snap-fit ​​long slot; 429. Recess; 430. Second moving block; 431. First sensor; 432. First limit switch;

[0038] 44. Second equipment layer; 441. First traveling device; 442. Positioning sleeve; 45. Parking device; 451. Second sensor; 452. Forward power cylinder; 453. First limit rod;

[0039] 454. Tilt lever; 455. Second limit lever; 456. Synchronous rope; 46. Frame; 461. First electric hoist;

[0040] 462. The first link in the chain;

[0041] 5. Connecting component; 51. Shoulder; 52. Chain mounting groove; 53. Countersunk hole;

[0042] 6. Counterweight hoisting device; 61. Second track; 62. Second traveling device; 63. Counterweight block;

[0043] 631. Base; 632. Counterweight plate; 633. Recess; 64. Counterweight box; 641. Slot; 642. Side slot;

[0044] 65. Vertical frame; 66. Folding rod; 67. Lead screw pushing device; 68. Second electric hoist; 681. Second chain;

[0045] 69. Fourth track; 60. Third traveling device;

[0046] 7. Seat belts;

[0047] 8. Mobile power supply equipment; 81. Seamless current collector; 82. Sliding contact line;

[0048] 91. Towing rope; 92. Convex pulley.

[0049] The following implementation methods are combined with the appendix Figure 1-7 This application will be described in further detail.

[0050] Example 1

[0051] Reference Figure 1-4A lifeline safety detection system includes a support frame 1, a lifeline tensioning device, a counterweight lifting device 6, and a control device for controlling the operation of each device. Each device can be manually controlled individually, or, as in this embodiment, remotely controlled via a centralized control device, including but not limited to a PLC controller. The lifeline tensioning device is located on the upper part of the support frame 1 and includes a first connecting unit and a second connecting unit for connecting the two ends of the lifeline 2 under test. The first connecting unit includes a first track 3 and a first trolley 4 disposed on the first track 3. The second connecting unit can be located at a fixed end of the support frame 1, or, as in embodiment 1, the second connecting unit includes a second trolley disposed on the first track 3. The two ends of the lifeline are respectively connected to the first trolley 4 and the second trolley. By controlling the movement of the first trolley 4 or the second trolley, the distance between the nodes at both ends of the lifeline can be adjusted.

[0052] Reference Figure 1 The counterweight hoisting device 6 includes a second track 61 on the upper part of the upright 1, a second traveling device 62 on the second track 61, and a counterweight block 63. The second traveling device 62 is equipped with a second electric hoist 68. The second chain 681 of the second electric hoist 68 is connected to the counterweight block 63. One end of the safety belt 7 is connected to the counterweight block 63, and the other end of the safety belt 7 is connected to the lifeline 2 being measured.

[0053] Reference Figure 2 The first trolley 4 includes a chassis 41 and a frame 46 mounted on the upper side of the chassis 41. A first electric hoist 461 and a mobile power supply device 8 are mounted on the upper part of the frame 46. The mobile power supply device 8 includes a seamless current collector 81 and a sliding contact line 82. The seamless current collector 81 is mounted on the upper part of the frame 46 of the first trolley 4, and the sliding contact line 82 is mounted on the upright frame 1. The seamless current collector 81 and the sliding contact line 82 are electrically connected. The first electric hoist 461 is electrically connected to a control device. The first chain 462 of the first electric hoist 461 is connected to a connecting component 5. The upper end of the connecting component 5 has a chain mounting groove 52 for connecting the first chain 462, and the side wall of the chain mounting groove 52 has countersunk holes 53 for securing the first chain 462. The connecting component 5 is suspended below the first electric hoist 461. The lower end of the connecting component 5 is connected to the lifeline 2 under test. The connecting component 5 is fitted with a positioning sleeve 442. The chassis 41 has a first equipment layer 42 and a second equipment layer 44. The positioning sleeve 442 is fixed between the first equipment layer 42 and the second equipment layer 44. The first equipment layer 42 is equipped with a fall prevention device that can be used to hold the connecting component 5 in place.

[0054] Reference Figure 2-4The fall arrestor includes a first power cylinder 421 and a second power cylinder 423 symmetrically arranged, and the first power cylinder 421 and the second power cylinder 423 are electrically connected to a control device. The first power cylinder 421 and the second power cylinder 423 are fixed to the first equipment layer 42, and a first fixing member 424 and a second fixing member 425 are provided between the first power cylinder 421 and the second power cylinder 423. The first fixing member 424 or the second fixing member 425 is provided with multiple sets of first sensors 431 for collecting height information of the connection component 5, and the first sensors 431 are communicatively connected to the control device. The first fixing member 424 and the second fixing member 425 are cuboid in shape. Each fixing member 424 and 425 has two mounting holes for securing bolts to the first equipment layer 42. Two guide rods 426 are symmetrically arranged between the first fixing member 424 and the second fixing member 425. A first moving block 427 and a second moving block 430 pass through the two guide rods 426. The piston end of the first power cylinder 421 passes through the first fixing member 424 and connects to the corresponding first moving block 427. The first equipment layer 42 is equipped with a second limit switch and a third limit switch for setting the travel distance of the first moving block 427. The second and third limit switches are communicatively connected to a control device. The first moving block 427 has a vertically arranged snap-fit ​​groove 428 on the side near the first fixing block. The piston end of the first power cylinder 421 has a snap-fit ​​connector 422, which fits into the snap-fit ​​groove 428 from the side. On the other side of the first moving block 427, there is a recessed seat 429. The first power cylinder 421 and the second power cylinder 423 respectively push the first moving block 427 and the second moving block 430 to clamp the connecting component 5 in the recessed seat 429. The end of the connecting component 5 extending out of the recessed seat 429 has a shoulder 51. A first limit switch 432 is provided above the connecting component 5. The first limit switch 432 is communicatively connected to the control device. The first limit switch 432 is fixed to the first equipment layer 42 by a bracket. When the connecting component 5 contacts the first limit switch 432, the first electric hoist 461 stops its lifting action, and the first power cylinder 421 and the second power cylinder 423 work to clamp the connecting component 5.

[0055] The second equipment layer 44 is provided with a first traveling device 441 and a parking device 45. The first traveling device 441 is connected to the control device and is used to drive the first trolley 4 to move on the first track 3.

[0056] Reference Figure 3-4The parking device 45 includes a second sensor 451 and a forward power cylinder 452. The second sensor 451 and the forward power cylinder 452 are communicatively connected to a control device. The piston rod of the forward power cylinder 452 is connected to a first limiting rod 453. The left rail of the first track 3 has several positioning holes 31, which are equidistantly arranged along the length of the left rail. The second sensor 451 is located on the horizontal side of the first limiting rod 453. The distance between the second sensor 451 and the first limiting rod 453 is an integer multiple of the distance between two adjacent positioning holes 31. When the second sensor 451 is aligned with a positioning hole 31, the forward power cylinder 452 pushes the first limiting rod 453 into the corresponding positioning hole 31 to complete the parking action. The parking device 45 also includes a corresponding reverse power cylinder, which is communicatively connected to the control device. The reverse power cylinder is connected to a second limiting rod 455. The right rail of the first track 3 has positioning holes 31 for cooperating with the second limiting rod 455 to complete the parking action.

[0057] The implementation principle of the lifeline safety detection system in this application embodiment is as follows: The control device starts the first electric hoist 461 of the first trolley 4 and the second trolley, lifting the lifeline 2 fixed to the bottom connecting assembly 5 of the first trolley 4 and the second trolley. When the lifeline is lifted to a predetermined height, the upper end of the connecting assembly 5, pulled by the first chain 462, enters the positioning sleeve 442 through the lower opening. Guided and positioned by the positioning sleeve 442, the connecting assembly 5 continues to rise until its upper end touches the first limit switch 432. The first limit switch 432 sends a feedback signal to the control device, which then controls the first electric hoist 461 to stop working and controls the first power cylinder 421 and the second power cylinder 423 inside the first trolley 4 and the second trolley to extend, clamping and positioning the corresponding connecting assembly 5. Then, the control device controls the second electric hoist 68 to start. The second electric hoist 68 lifts the counterweight 63 to a certain height and then releases it, allowing the counterweight 63 to fall naturally. When the counterweight 63 falls, the safety belt 7 on the counterweight 63 pulls the lifeline 2 being tested, thus enabling the performance testing of the lifeline.

[0058] Example 2

[0059] Reference Figure 5-7 A lifeline safety detection system, the difference between this embodiment 2 and embodiment 1 is that: the piston rod end of the forward power cylinder 452 is hinged to a rocker arm 454, the middle of the rocker arm 454 is hinged to the second equipment layer 44, and the two sides of the rocker arm 454 are respectively connected to a first limiting rod 453 and a second limiting rod 455 by a synchronous rope 456. The forward power cylinder 452 is controlled by the control device to push the rocker arm 454, and the first limiting rod 453 and the second limiting rod 455 are pushed out at one time in a synchronous manner. The first limiting rod 453 and the second limiting rod 455 respectively cooperate with the positioning holes 31 on the left and right rails of the first track 3 to limit the chassis 41 and achieve the purpose of parking.

[0060] Reference Figure 5 One end of the safety belt 7 is connected in parallel to the second chain 681 on the upper part of the counterweight 63. The counterweight 63 consists of a base 631 and several counterweight plates 632. To prevent the counterweight plates 632 from rotating, two second chains 681 can pass through the counterweight plates 632, or a series post with a polygonal cross-section can be set on the base 631, with several counterweight plates 632 stacked on the series post, and the upper part of the series post connected to the second chain 681. The second chain 681 passes through the counterweight plates 632 and is connected to the base 631. The counterweight plates 632 are located in a counterweight box 64, which is movably connected to the upright frame 1. In this embodiment 2, the upright frame 1 is provided with a fourth track 69, and a third traveling device 60 is provided on the fourth track 69. The counterweight box 64 is fixed to the third traveling device 60.

[0061] Reference Figure 6 Both the counterweight plate 632 and the counterweight box 64 have slots 641 on their periphery for the passage of the safety belt 7. The counterweight box 64 has a side slot 642 on its periphery. The counterweight plate 632 has a recess 633 at its lower part. A counterweight adjustment device is provided on one side of the counterweight box 64. The counterweight adjustment device includes a vertical frame 65, on which are provided several folding rods 66 corresponding to each counterweight plate 632. The folding rods 66 are hinged to the vertical frame 65 at their middle parts. A screw pushing device 67 and a limit stop to restrict excessive upward rotation on one side of the folding rod 66 are provided. The screw pushing device 67 includes a lifting screw and a first motor. The first motor is connected to a control device. The first motor drives the nut seat sleeved on the lifting screw to rotate, and the rotation of the nut seat drives the lifting screw to rise and fall. When one end of the folding rod 66 is pushed by the screw pushing device 67, the other end of the folding rod 66 rotates from the side slot 642 of the counterweight box 64 and abuts against the recess 633 of the corresponding counterweight plate 632. One end of a traction rope 91 is connected to the bottom of the base 631, and the other end of the traction rope 91 is connected to the third walking device 60. A convex pulley 92 is wound on the traction rope 91, and the convex pulley 92 is driven to rotate by a drive motor.

[0062] The implementation principle of the lifeline safety detection system in this application embodiment is as follows: Under normal conditions, the lower end of the lifting screw of the screw-pushing device 67 is at its lowest point. At this time, all the folding rods 66 on the vertical frame 65 are in a state of being pushed by the lifting screw. The ends of the folding rods 66 are stuck in the recesses 633 at the lower part of the counterweight plates 632. When the second electric hoist 68 releases the second chain 681, only the base 631 connected to the second chain 681 falls, while the other counterweight plates 632 are stuck in the counterweight box 64. At this time, the first motor is started by the control device. The first motor drives the nut seat sleeved on the lifting screw to rotate. The rotation of the nut seat causes the lifting screw to rise. The folding rods 66 lose the support of the lifting screw and can no longer support and block the counterweight plates 632, thus releasing the corresponding counterweight plates 632. This achieves the adjustment of the weight of the counterweight block 63. When the base 631, i.e. the counterweight 63, falls to the lowest point, the convex pulley 92 pulls the base 631, causing the base 631 to swing, to simulate the situation of a person being swayed by the wind at high altitude, and to test the working condition of the lifeline under repeated pulling.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lifeline safety detection system, characterized in that: The system includes a support frame (1), a lifeline tensioning device, and a counterweight lifting device (6). The lifeline tensioning device is mounted on the support frame (1). The lifeline tensioning device includes a first connecting unit for connecting one end of the lifeline (2) to be measured. The counterweight lifting device (6) has a counterweight block (63) connected to the lifeline (2) to be measured. The first connecting unit includes a first track (3) and a first trolley (4) mounted on the first track (3). The first trolley (4) includes a chassis (41) and a frame (46) mounted on the upper side of the chassis (41). A first electric hoist (461) is mounted on the upper part of the frame (46). A connecting component (5) is suspended below the first electric hoist (461). The lower end of the connecting component (5) is connected to the lifeline (2). The lifeline (2) is provided with a positioning sleeve (442) on the connecting component (5). The chassis (41) is provided with a first equipment layer (42) and a second equipment layer (44). The positioning sleeve (442) is fixed between the first equipment layer (42) and the second equipment layer (44). The first equipment layer (42) is provided with a fall protection device that can be movably clamped to the connecting component (5). The fall protection device includes a first power cylinder (421) and a second power cylinder (423) arranged symmetrically. The first power cylinder (421) and the second power cylinder (423) are fixed to the first equipment layer (42). A first fixing member (424) and a second fixing member (425) are provided between the first power cylinder (421) and the second power cylinder (423). Two fixing components (425), the first fixing component (424) and the second fixing component (425) are fixed to the first equipment layer (42), two guide rods (426) are symmetrically arranged between the first fixing component (424) and the second fixing component (425), a first moving block (427) and a second moving block (430) are passed through the two guide rods (426), the piston end of the first power cylinder (421) passes through the first fixing component (424) and is connected to the corresponding first moving block (427), the first moving block (427) is provided with a vertically arranged snap-fit ​​groove (428) on the side near the first fixing block, the piston end of the first power cylinder (421) is provided with a snap-fit ​​connector (422), the snap-fit... The connector (422) is inserted into the snap-fit ​​slot (428) from the side. The first moving block (427) has a recess (429) on the other side. The first power cylinder (421) and the second power cylinder (423) push the first moving block (427) and the second moving block (430) respectively to clamp the connecting component (5) in the recess (429). The connecting component (5) has a shoulder (51) at one end extending out of the recess (429). The second equipment layer (44) is provided with a first walking device (441) and a parking device (45). The first walking device (441) is used to drive the first trolley (4) to move on the first track (3).The parking device (45) includes a second sensor (451) and a forward power cylinder (452). The piston rod of the forward power cylinder (452) is connected to a first limiting rod (453). The left rail of the first track (3) is provided with a plurality of positioning holes (31), which are equidistantly arranged along the length of the left rail. The second sensor (451) is located on the horizontal side of the first limiting rod (453), and the distance between the second sensor (451) and the first limiting rod (453) is one-third of the distance between two adjacent positioning holes (31). The distance between the two sensors is an integer multiple of the distance between them. When the second sensor (451) is directly opposite a positioning hole (31), the forward power cylinder (452) pushes the first limiting rod (453) into the corresponding positioning hole (31) to complete the parking action. The piston rod end of the forward power cylinder (452) is hinged to a rocker arm (454). The middle part of the rocker arm (454) is hinged to the second equipment layer (44). The first limiting rod (453) and a second limiting rod (455) are respectively connected to both sides of the rocker arm (454) by a synchronous rope (456).

2. The lifeline safety detection system according to claim 1, characterized in that: The first fixing member (424) or the second fixing member (425) is provided with multiple sets of first sensors (431) for collecting the height information of the connecting component (5); a first limit switch (432) is provided above the connecting component (5). The first limit switch (432) is fixed to the first equipment layer (42) by a bracket. When the connecting component (5) contacts the first limit switch (432), the first electric hoist (461) stops the lifting action, and the first power cylinder (421) and the second power cylinder (423) work to clamp the connecting component (5).

3. The lifeline safety detection system according to claim 1, characterized in that: The upper end of the connecting component (5) is provided with a chain mounting groove (52) for connecting the first chain (462) of the first electric hoist (461), and the side wall of the chain mounting groove (52) is provided with a countersunk hole (53) for securing the first chain (462).

4. The lifeline safety detection system according to claim 1, characterized in that: It also includes a mobile power supply device (8), which includes a seamless current collector (81) and a sliding contact line (82). The seamless current collector (81) is located on the upper part of the frame (46) of the first trolley (4), and the sliding contact line (82) is located on the upright frame (1). The seamless current collector (81) and the sliding contact line (82) are electrically connected.

5. The lifeline safety detection system according to claim 1, characterized in that: The counterweight hoisting device (6) includes a second track (61) on the upper part of the upright (1), a second traveling device (62) on the second track (61), and a counterweight block (63). The second traveling device (62) is equipped with a second electric hoist (68). The second chain (681) of the second electric hoist (68) is connected to the counterweight block (63). One end of the safety belt (7) is connected to the counterweight block (63), and the other end of the safety belt (7) is connected to the lifeline (2) being measured.

6. The lifeline safety detection system according to claim 5, characterized in that: One end of the safety belt (7) is connected in parallel with the second chain (681) on the upper part of the counterweight (63). The counterweight (63) consists of a base (631) and several counterweight plates (632). The second chain (681) passes through the counterweight plates (632) and connects to the base (631). The counterweight plates (632) are located in a counterweight box (64). The counterweight box (64) is movably connected to the upright (1). The peripheral walls of both the counterweight plates (632) and the counterweight box (64) are provided with slots (641) for the safety belt (7) to pass through. The peripheral wall of the counterweight box (64) is provided with side slots (642). 32) A recess (633) is provided at the bottom. A counterweight adjustment device is provided on one side of the counterweight box (64). The counterweight adjustment device includes a vertical frame (65). A plurality of folding rods (66) corresponding to each counterweight piece (632) are provided on the vertical frame (65). The middle part of the folding rod (66) is hinged to the vertical frame (65). A screw pushing device (67) is provided on one side of the folding rod (66). When one end of the folding rod (66) is pushed by the screw pushing device (67), the other end of the folding rod (66) rotates from the side groove (642) of the counterweight box (64) and abuts against the recess (633) corresponding to the counterweight piece (632).

7. The lifeline safety detection system according to claim 6, characterized in that: The bottom of the base (631) is connected to one end of a traction rope (91), and the other end of the traction rope (91) is connected to a counterweight box (64). A convex pulley (92) is wound around the traction rope (91), and the convex pulley (92) is driven to rotate by a drive motor.

Images