Anti-friction device for high-altitude lifting rope

Abstract

The invention provides an anti-friction device for a high-altitude lifting rope, and relates to the technical field of protective assemblies, the anti-friction device comprises two bottom plates, a hinge end and a lifting rope body, the hinge end is of a multi-section structure, a guide rail seat is slidably mounted on the surface of one bottom plate, two bearing plates are rotatably mounted in the guide rail seat, and the bearing plates are rotatably mounted in the guide rail seat; soft belts are fixedly mounted at the two ends of each pressure bearing plate, a pressure applying plate is slidably mounted in the guide rail seat, two arc-shaped soft plates are fixedly mounted on the inner side of the pressure applying plate, telescopic cylinders are fixedly mounted at the two side end parts of the pressure applying plate, and each telescopic cylinder is of a sleeve structure; by means of the two bearing plates distributed in the guide rail base in a staggered mode, when the lifting rope body is stressed and tensioned, stress of the bent end of the lifting rope body can be dispersed, fatigue of rope core fibers is reduced, the bearing plates limit the lifting rope body swinging left and right, the guide rail base is matched to synchronously move along with the lifting rope body, the lifting rope body is borne all the time, and a friction point is prevented from deviating from a protection area.

Description

Technical Field

[0001] The present invention belongs to the technical field of protective components, and more specifically, relates to an anti-friction device for high-altitude hanging ropes. Background Art

[0002] Aerial lifting ropes are key ropes used to carry personnel, equipment or tools during high-altitude operations. They can be used as seats for workers during exterior wall cleaning, to transport maintenance tools on power towers, and to lift injured people during fire rescue.

[0003] Use an electric hammer to drill holes at the anchor point, embed steel eyelets, connect the main lifting rope to the eyelets with a shackle, and secure the rope ends with braided joints. Place a U-shaped plastic groove next to the window where the lifting rope passes, and affix a non-slip silicone pad inside the groove to reduce the friction coefficient and prevent the lifting rope from shifting. However, during use, the following shortcomings exist:

[0004] 1. The exterior walls of buildings are mostly angular structures. The hanging ropes are prone to friction with the exterior walls of the buildings. If only cushions are laid at the corners, the lateral tension generated when the hanging ropes are under stress will cause the cushions to slide, which may easily cause the cushions to fall off and cause the hanging ropes to directly contact the corners.

[0005] 2. Even if the soft pad covers the corners, the bending of the rope at the corners will still produce local high tension, causing fatigue of the rope core fiber. In addition, the rope changes position due to movement of personnel or shaking of equipment during operation, causing the friction point to deviate from the soft pad covered area, resulting in direct wear of the rope at the unprotected corners. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides an anti-friction device for high-altitude hanging ropes to solve the above problems.

[0007] An anti-friction device for a high-altitude rope, comprising two base plates, a hinged end and a rope body, wherein the hinged end is a multi-section structure, and a guide rail seat is slidably mounted on the surface of one of the base plates;

[0008] Two pressure-bearing plates are rotatably mounted inside the guide rail seat, and soft belts are fixedly mounted at both ends of each pressure-bearing plate;

[0009] A pressure plate is slidably installed inside the guide rail seat, and two arc-shaped soft plates are fixedly installed on the inner side of the pressure plate. Telescopic cylinders are fixedly installed on both side ends of the pressure plate. Each telescopic cylinder is a sleeve structure, and a spring rod is provided inside each telescopic cylinder.

[0010] Preferably, a supporting collar is fixedly mounted on the bottom end of each pressure plate, and a plurality of grooves are provided on the surface of each supporting collar;

[0011] Two sensor bodies are arranged inside the guide rail seat, and a plurality of limit blocks are slidably installed inside the guide rail seat, and a buffer sleeve is fixedly installed at the end of each limit block;

[0012] Two light strips are fixedly mounted on the side end portion of the guide rail seat. The end of each light strip is connected to the guide rail seat via a wiring harness. A circuit board and a battery are provided inside the guide rail seat.

[0013] Preferably, the bottom end of the guide rail seat is provided with two connecting blocks 1, and the top end of each connecting block 1 is provided with a bearing;

[0014] Two connecting blocks 2 are rotatably mounted on the inner side of each guide rail seat, a clamping seat is provided at the side end of each connecting block 2, and a rotating drum is rotatably mounted inside each connecting block 2;

[0015] A fixing plate is fixedly installed on the side end portion of each base plate, and a fastening bolt is rotatably installed on the top end of each fixing plate.

[0016] Preferably, a gusset plate is provided inside each of the fixing plates, and a plurality of sockets for docking with fastening bolts are provided on the top of each of the gusset plates;

[0017] Each of the bottom plates is provided with two guide grooves for docking with the first and second connecting blocks;

[0018] The surface of each pressure plate is provided with two arc-shaped grooves aligned with the arc-shaped soft plate, each soft belt is in a stacked structure, and each arc-shaped soft plate is made of rubber material.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the present invention, the fastening bolt at the top of the fixing plate is rotated in the reverse direction to rotate it away from the inside of the gusset plate, and the gusset plate is pulled to slide in the fixing plate, and the length of the gusset plate is adjusted so that the side end of the gusset plate is engaged with the wall. Then, the fastening bolt is rotated in the forward direction so that the end is inserted into the gusset plate socket to complete the fixation of the base plate and the wall, providing a stable and non-displacement protection foundation for the suspension rope body.

[0021] In the present invention, two pressure plates staggeredly distributed in the guide rail seat can disperse the stress at the bent end of the rope body when the rope body is tightened, reducing fatigue of the rope core fiber. The pressure plates limit the rope body swinging left and right, and cooperate with the guide rail seat to move synchronously with the rope body, always supporting the rope body and preventing the friction point from deviating from the protection area.

[0022] In the present invention, the two base plates are connected by elastic plastic on both sides through a multi-section structure at the hinged end. By utilizing elastic bending, the internal long strip groove allows the connecting block 1 and the connecting block 2 to have an interference fit or elastic snap connection, thereby avoiding sliding and shaking, and adapting to the bending of the hinged end, so that the device can adapt to the angular and curved shapes of different buildings.

[0023] In the present invention, it is connected to the guide rail seat through a wiring harness, and a circuit board and a battery are provided inside the guide rail seat. The sensor body detects the pressure signal exerted on the pressure plate. When the pressure difference between the two pressure plates is too large, the two light strips are lit to warn the staff. The abnormal tension exerted on the rope body can remind the staff in time, thereby increasing the safety of use.

[0024] In the present invention, the buffer sleeve is extended and retracted by squeezing the limit block under force, but a spring rod is installed inside the buffer sleeve. The buffer sleeve generates a reverse thrust on the limit block, causing the limit block to rub against the surface of the support shaft ring. The limit block is inserted into the surface of the support shaft ring, increasing the resistance to the rotation of the support shaft ring, limiting the excessive swing of the lifting rope body, and reducing the additional wear caused by large shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the bottom plate structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the gusset plate structure of the present invention;

[0027] Figure 3 It is a schematic structural diagram of the guide rail seat of the present invention;

[0028] Figure 4 This is a structural diagram of the second connecting block of the present invention;

[0029] Figure 5 It is a schematic diagram of the pressing plate structure of the present invention;

[0030] Figure 6 It is a schematic diagram of the pressure plate structure of the present invention;

[0031] Figure 7 This invention Figure 6 A is an enlarged structural diagram of FIG.

[0032] In the figure, 11, base plate; 12, hinged end; 13, lifting rope body; 14, fixing plate; 15, buckle plate; 16, guide rail seat; 17, pressure plate; 18, arc-shaped soft plate; 19, telescopic cylinder; 21, light bar; 22, connecting block 1; 23, bearing; 24, connecting block 2; 25, holder; 26, rotating cylinder; 27, pressure plate; 28, soft belt; 29, support shaft ring; 31, sensor body; 32, limit block; 33, buffer sleeve; 34, fastening bolt. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0034] See also Figure 1-Figure 7 The present invention provides an anti-friction device for a high-altitude lifting rope, comprising two base plates 11, a hinged end 12 and a lifting rope body 13. The hinged end 12 is a multi-section structure, wherein a guide rail seat 16 is slidably mounted on the surface of one of the base plates 11, and elastic plastic is provided on both sides of the hinged end 12 to connect the two base plates 11, and the elasticity of the material itself is utilized to achieve bending. At the same time, a long strip groove is provided inside the hinged end 12, and the connecting block 1 22 and the connecting block 2 24 are interference fit or elastically clamped to avoid shaking during sliding. First, the base plate 11 is placed on the top of the wall, and the corners of the wall are covered by the base plate 11. The lifting rope body 13 is placed inside the guide rail seat 16, and the lifting rope body 13 is aligned with the two pressure plates 27. At the same time, the lifting rope body 13 passes through the bottom end of the pressure plate 17, and the lifting rope body 13 is placed on the surface of the two pressure plates 27.

[0035] Two pressure-bearing plates 27 are rotatably installed inside the guide rail seat 16, and soft belts 28 are fixedly installed at both ends of each pressure-bearing plate 27. By staggering the two pressure-bearing plates 27, when the end of the rope body 13 is subjected to force, the rope body 13 is tightened on the surface of the pressure-bearing plate 27, and the rope body 13 generates pressure on the two pressure-bearing plates 27. The stress at the bent end of the rope body 13 is dispersed through the two pressure-bearing plates 27. At the same time, when the rope body 13 swings left and right, the rope body 13 is limited by the two pressure-bearing plates 27. The rope body 13 drives the guide rail seat 16 to slide inside the bottom plate 11, and the guide rail seat 16 moves synchronously with the movement direction of the rope body 13, so that the pressure-bearing plates 27 always support the rope body 13, thereby preventing the rope body 13 from falling off from the inside of the guide rail seat 16.

[0036] A pressure plate 17 is slidably installed inside the guide rail seat 16, and two curved soft plates 18 are fixedly installed on the inner side of the pressure plate 17. Telescopic cylinders 19 are fixedly installed on both side ends of the pressure plate 17. Each telescopic cylinder 19 is a sleeve structure. A spring rod is provided inside each telescopic cylinder 19. By driving the telescopic cylinder 19 to compress on the inner side of the guide rail seat 16, the pressure plate 17 is driven to slide inside the guide rail seat 16, so that the pressure plate 17 moves toward the surface of the rope body 13 and squeezes the surface of the rope body 13 through the curved soft plates 18. The curved soft plates 18 cooperate with the guide rail seat 16 to apply bidirectional squeezing and fixing to the rope body 13;

[0037] A support collar 29 is fixedly mounted at the bottom end of each pressure plate 27. A plurality of grooves are provided on the surface of each support collar 29. When the sling body 13 is in use, the sling body 13 is subjected to a horizontal force, causing the sling body 13 to swing left and right. The sling body 13 is placed inside the pressure plate 27. The swinging of the sling body 13 drives the pressure plate 27 to rotate inside the guide rail seat 16. At the same time, the pressure plate 27 drives the support collar 29 to rotate, causing the support collar 29 to rotate inside the guide rail seat 16. At the same time, the end of the telescopic cylinder 19 is connected to the sensor body 31.

[0038] Two sensor bodies 31 are provided inside the guide rail seat 16, and a plurality of limit blocks 32 are slidably installed inside the guide rail seat 16. A buffer sleeve 33 is fixedly installed at the end of each limit block 32. Each sensor body 31 is a resistance strain type pressure sensor, which uses a resistance strain gauge to be pasted on an elastic body. The pressure causes the elastic body to deform, driving the resistance value of the strain gauge to change, and the pressure is detected by the change of the signal. When the instantaneous tension on the detection rope body 13 is too large, the telescopic cylinder 19 is driven to retract, and the rotating support shaft ring 29 squeezes the surfaces of the plurality of limit blocks 32. The surface of the limit block 32 is an arc-shaped design. The limit block 32 is forced to squeeze the buffer sleeve 33 to retract, but a spring rod is installed inside the buffer sleeve 33. The buffer sleeve 33 generates a reverse thrust on the limit block 32, causing the limit block 32 to rub against the surface of the support shaft ring 29. The limit block 32 is inserted into the surface of the support shaft ring 29, increasing the resistance of the support shaft ring 29 to rotate.

[0039] Two light bars 21 are fixedly mounted on the side ends of the guide rail base 16. The ends of each light bar 21 are connected to the guide rail base 16 via a wiring harness. A circuit board and a battery are provided inside the guide rail base 16. The sensor body 31 detects the pressure signal received by the pressure plate 27. When the pressure difference between the two pressure plates 27 is too large, the sensor body 31 transmits a signal to the circuit board. The circuit board controls the battery to energize the two light bars 21, lighting up the two light bars 21 to alert the staff that the tension on the sling body 13 is abnormal, which can promptly remind the staff and increase the safety of use.

[0040] The bottom end of the guide rail seat 16 is provided with two connecting blocks 22, and the top end of each connecting block 22 is provided with a bearing 23. The two bottom plates 11 are pulled, and the bottom plates 11 drive the hinge end 12 to bend. At the same time, the guide rail seat 16 slides inside the bottom plate 11, and the guide rail seat 16 drives the connecting block 22 to slide. The connecting block 22 can rotate at an angle at the bottom end of the guide rail seat 16 to facilitate the guide rail seat 16 to slide through the bent end of the hinge end 12;

[0041] Two second connecting blocks 24 are rotatably mounted on the inner side of each guide rail seat 16. A clamping seat 25 is provided at the side end of each connecting block 24. A rotating cylinder 26 is rotatably mounted inside each connecting block 24. At the same time, the connecting block 24 can rotate on the side end of the clamping seat 25 to adjust the angle of the connecting block 24 so that the connecting block 24 can slide inside the hinge end 12 in cooperation with the guide rail seat 16. At the same time, a rotating cylinder 26 is installed at the side end of the connecting block 24 to reduce the sliding resistance of the connecting block 24;

[0042] A fixing plate 14 is fixedly installed on the side end of each base plate 11, and a fastening bolt 34 is rotatably installed on the top of each fixing plate 14. By moving the base plate 11, the base plate 11 is a bent structure, and the base plate 11 is placed at the corner of the wall. The base plate 11 covers the corner. By rotating the fastening bolt 34 in the opposite direction, the fastening bolt 34 rotates away from the inside of the gusset plate 15. By pulling the gusset plate 15, the gusset plate 15 slides inside the fixing plate 14.

[0043] Each fixing plate 14 is provided with a gusset plate 15 inside. The top of each gusset plate 15 is provided with a plurality of insertion holes for docking with fastening bolts 34. By adjusting the length of the gusset plate 15, the side end of the gusset plate 15 is engaged with the wall. Then, by rotating the fastening bolt 34 forward, the end of the fastening bolt 34 is inserted into the interior of the gusset plate 15 to fix the gusset plate 15.

[0044] Each base plate 11 is provided with two guide grooves inside, which are connected to the connecting block 1 22 and the connecting block 2 24. The guide rail seat 16 slides along the guide grooves, and cooperates with the swing of the rope body 13 to restrict the rope body 13 to the surface of the pressure plate 27.

[0045] The surface of each pressure plate 27 is provided with two arc grooves aligned with the arc soft plate 18. Each soft belt 28 is in a stacked structure. Each arc soft plate 18 is made of rubber. When the pressure plate 27 rotates and swings, the pressure plate 27 pulls the two soft belts 28. The soft belts 28 extend and retract inside the guide rail seat 16, cooperate with the pressure plate 27 to rotate, and at the same time pull the pressure plate 27 to reset.

[0046] Working principle:

[0047] The first step is to place the base plate 11 on the top of the wall. The base plate 11 is a bent structure that can cover the corners of the wall. Move the base plate 11 to adjust its position, reversely rotate the fastening bolt 34 at the top of the fixed plate 14 to rotate it away from the inside of the gusset plate 15, pull the gusset plate 15 to slide in the fixed plate 14, adjust the length of the gusset plate 15, allow the side end of the gusset plate 15 to engage with the wall, and then rotate the fastening bolt 34 forward to insert the end of the bolt into the gusset plate 15 socket to complete the fixation of the base plate 11 to the wall.

[0048] The guide rail seat 16 is connected with the internal guide groove of the bottom plate 11 through the bottom end adapter block one 22 and the inner side adapter block two 24. The top end of the adapter block one 22 is provided with a bearing 23, which can rotate at the bottom end of the guide rail seat 16. The side end of the adapter block two 24 is provided with a clamping seat 25, and an inner rotatingly installed rotating cylinder 26 can rotate and adjust the angle at the side end of the clamping seat 25. The rotating cylinder 26 can reduce the sliding resistance, so that the guide rail seat 16 can smoothly slide along the guide groove in the bottom plate 11. The hanging rope body 13 is placed in the guide rail seat 16, and is aligned with the two pressure bearing plates 27. At the same time, the hanging rope body 13 passes through the bottom end of the pressure plate 17 and is placed on the surface of the pressure bearing plate 27.

[0049] In the second step, the two pressure bearing plates 27 rotatingly installed in the guide rail seat 16 are staggered. When the ends of the hanging rope body 13 are stressed and tightened, the pressure bearing plates 27 will be pressed by the stress of the bending ends of the hanging rope body 13. When the hanging rope body 13 swings left and right, the pressure bearing plates 27 limit it, and the hanging rope drives the guide rail seat 16 to move synchronously along the guide groove of the bottom plate 11, so that the pressure bearing plates 27 always support the hanging rope to prevent it from falling off. The bottom end support collar 29 rotates with the pressure bearing plate 27. The surface groove of the support collar 29 cooperates with the limiting block 32 in the guide rail seat 16. The pressure plate 17 slidingly installed in the guide rail seat 16 is compressed in the inner side of the guide rail seat 16 through the driving of the telescopic cylinder 19, drives the pressure plate 17 to move and press towards the hanging rope, and the inner side arc-shaped soft plate 18 of the pressure plate 17 cooperates with the guide rail seat 16 to apply bidirectional extrusion fixation to the hanging rope. The surface arc-shaped groove of the pressure bearing plate 27 is aligned with the arc-shaped soft plate 18 to enhance the adaptability.

[0050] The sensor body 31 in the guide rail seat 16 detects the tension of the hanging rope. If the instantaneous tension is too large, the telescopic cylinder 19 is telescoped, the rotating support collar 29 extrudes the limiting block 32, the surface of the limiting block 32 is arc-shaped, is stressed and extruded, and the buffer sleeve 33 generates a reverse thrust on the limiting block 32, so that the limiting block 32 is inserted into the groove on the surface of the support collar 29 through friction with the surface of the support collar 29, the rotating resistance of the support collar 29 is increased, the excessive swing of the hanging rope is limited, the pressure signal of the pressure bearing plate 27 is detected by the sensor body 31, and when the pressure difference between the two pressure bearing plates 27 is too large, the signal is transmitted to the internal circuit board of the guide rail seat 16. The circuit board controls the battery to supply power to the light bar 21, and the light bar 21 is lighted to warn the staff that the tension of the hanging rope is abnormal.

[0051] The third step is to use a multi-section structure at the hinged end 12, and elastic plastics on both sides connect the two base plates 11. The elastic bending is used, and the internal long strip groove allows the connecting block 1 22 and the connecting block 2 24 to be interference fit or elastically clamped to avoid sliding and shaking. When the base plate 11 is pulled, the hinged end 12 bends, and the guide rail seat 16 drives the connecting block 1 22 and the connecting block 2 24 to slide along the guide groove of the base plate 11, adapting to the bending of the hinged end 12 to ensure that the guide rail seat 16 moves smoothly with the movement of the lifting rope. The soft belts 28 at both ends of the pressure plate 27 are in a stacked structure. When the pressure plate 27 rotates and swings, the soft belt 28 is pulled to retract and retract in the guide rail seat 16 to cooperate with the rotation of the pressure plate 27. The pressure plate 27 can also be pulled to reset to maintain the working stability of the pressure plate 27.

[0052] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. An anti-friction device for a high-altitude rope, comprising two base plates (11), a hinged end (12) and a rope body (13), characterized in that: The hinged end (12) is a multi-section structure, wherein a guide rail seat (16) is slidably mounted on the surface of one of the base plates (11); Two pressure-bearing plates (27) are rotatably mounted inside the guide rail seat (16), and soft belts (28) are fixedly mounted at both ends of each pressure-bearing plate (27); A pressure plate (17) is slidably mounted inside the guide rail seat (16), two arc-shaped soft plates (18) are fixedly mounted on the inner side of the pressure plate (17), and telescopic cylinders (19) are fixedly mounted on both side ends of the pressure plate (17), each of the telescopic cylinders (19) is a sleeve structure, and a spring rod is arranged inside each of the telescopic cylinders (19).

2. The anti-friction device for a high-altitude rope as claimed in claim 1, characterized in that: A supporting collar (29) is fixedly mounted on the bottom end of each pressure plate (27), and a plurality of grooves are provided on the surface of each supporting collar (29).

3. The anti-friction device for a high-altitude rope as claimed in claim 1, characterized in that: Two sensor bodies (31) are provided inside the guide rail seat (16), a plurality of limit blocks (32) are slidably installed inside the guide rail seat (16), and a buffer sleeve (33) is fixedly installed at the end of each limit block (32).

4. The anti-friction device for a high-altitude rope as claimed in claim 1, characterized in that: Two light strips (21) are fixedly mounted on the side end of the guide rail seat (16), and the end of each light strip (21) is connected to the guide rail seat (16) via a wiring harness. A circuit board and a battery are provided inside the guide rail seat (16).

5. The anti-friction device for a high-altitude rope as claimed in claim 1, characterized in that: The bottom end of the guide rail seat (16) is provided with two connecting blocks (22), and the top end of each connecting block (22) is provided with a bearing (23).

6. The anti-friction device for a high-altitude rope as claimed in claim 1, characterized in that: Two connecting blocks (24) are rotatably mounted on the inner side of each guide rail seat (16), a clamping seat (25) is provided at the side end of each connecting block (24), and a rotating drum (26) is rotatably mounted inside each connecting block (24).

7. An anti-friction device for a high-altitude rope according to any one of claims 1 to 6, characterized in that: A fixing plate (14) is fixedly mounted on the side end of each base plate (11), and a fastening bolt (34) is rotatably mounted on the top end of each fixing plate (14).

8. The anti-friction device for a high-altitude rope as claimed in claim 7, characterized in that: A pinch plate (15) is provided inside each of the fixing plates (14), and a top end of each of the pinch plates (15) is provided with a plurality of insertion holes for docking with the fastening bolts (34).

9. The anti-friction device for a high-altitude rope as claimed in claim 1, characterized in that: Each base plate (11) is provided with two guide grooves inside, which are connected to the connecting block 1 (22) and the connecting block 2 (24).

10. The anti-friction device for a high-altitude rope as claimed in claim 1, characterized in that: The surface of each pressure plate (27) is provided with two arc-shaped grooves aligned with the arc-shaped soft plate (18), each soft belt (28) is in a stacked structure, and each arc-shaped soft plate (18) is made of rubber material.

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