A double-rail sliding device

Abstract

The present invention relates to the technical field of pulley blocks, and is especially applied to fields such as aerial crossing, mountain rescue, fire fighting and rescue, high-altitude operation, evacuation and transfer, outdoor activities, zip line, and military. A double-track sliding device includes two bodies, the two bodies are symmetrically arranged, and a plurality of fixed stainless steel rivets are installed through between the sides of the two bodies. Bearings are fixedly sleeved on the surfaces of the fixed stainless steel rivets, and pulleys are fixedly sleeved on the outer ring surfaces of the plurality of bearings. In this solution, by arranging a plurality of pulleys, the ropes can be connected to the pulleys at different positions to establish a pulley system for pulling in all directions. Moreover, after the plurality of pulleys are stressed, they all rotate on the bearings, so that the pulleys have good sliding efficiency, which is used to reduce the friction between the ropes and the pulleys, thereby facilitating the staff to pull the ropes. When performing aerial crossing, transporting personnel, or using a zip line, it is particularly smooth, stable, and fluent, improving the convenience and safety of the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of pulley blocks, and is particularly applied to fields such as aerial crossing, mountain rescue, fire fighting and rescue, high-altitude operation, evacuation and transfer, outdoor activities, zip line, and military. It relates to a double-track sliding device. Background Art

[0002] In the prior art, when personnel are injured or heavy objects are transported, if the terrain is not convenient for the staff to move, it is still necessary to carry out aerial crossing, drag heavy objects or rescue and evacuate personnel. To achieve the above goals, it is also necessary to horizontally pull a rope, and then put a pulley on the surface of the rope to fix the position between the rope and the pulley;

[0003] In the prior art, the pulley is composed of a bracket, a roller and a bearing. When transporting heavy objects, the efficiency is slow, and it is not suitable for working in high-frequency and high-intensity environments. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art, and a double-track sliding device is proposed.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a double-track sliding device, including two bodies, the two bodies are symmetrically arranged, and a plurality of fixed stainless steel rivets are installed through between the sides of the two bodies. A bearing is fixedly sleeved on the surface of the fixed stainless steel rivet, and a pulley is fixedly sleeved on the outer ring surface of a plurality of the bearings.

[0006] Preferably, a plurality of movable pin holes are opened at both ends of the two bodies, and four movable pin holes are opened and are symmetrically arranged.

[0007] Preferably, at least five fixed stainless steel rivets are provided, and the fixed stainless steel rivets are arranged from top to bottom.

[0008] Preferably, a positioning mechanism is provided between the two bodies.

[0009] Preferably, the positioning mechanism includes two first pressing plates and two second pressing plates. The two first pressing plates and the two second pressing plates are both located between four pulleys corresponding to the upper and lower positions. At both ends of the bottom of the first pressing plate, mounting rods are installed through screws. The bottom end of the mounting rod is movably sleeved with a mounting tube, and the bottom end of the mounting tube is installed on the top of the second pressing plate through screws. A plurality of cones are installed on the surface of the second pressing plate through screws.

[0010] Preferably, a tension spring is movably sleeved between the surfaces of the mounting tube and the mounting rod, and both ends of the tension spring are installed on the surfaces of the first pressing plate and the second pressing plate through screws respectively.

[0011] Preferably, long strips are provided on both sides of the first pressing plate and the second pressing plate. Long holes are formed in the side surfaces of the long strips. A fixed sliding rod is installed between the two ends of the long hole by screws. Two connecting blocks are movably sleeved on the surface of the fixed sliding rod. One ends of the two connecting blocks are respectively installed on the side surfaces of the first pressing plate and the second pressing plate by screws. A compression spring is movably sleeved on the surface of the fixed sliding rod. Two ends of the compression spring are respectively installed on the surface of the connecting block and the end of the long hole by screws.

[0012] Preferably, a second connecting plate is provided between the two first pressing plates, and a first connecting plate is provided between the two second pressing plates. Both ends of the second connecting plate are installed with second connecting rods by screws. One ends of the two second connecting rods are respectively installed on the tops of the two second pressing plates by screws. Both ends of the first connecting plate are installed with first connecting rods by screws. One ends of the two first connecting rods are installed on the bottoms of the two first pressing plates by screws.

[0013] Preferably, mounting blocks are installed on the surfaces of the first connecting plate and the second connecting plate by screws. One ends of the two mounting blocks correspond to each other. Threaded holes are formed at one ends of the two mounting blocks. A stud is threadedly inserted between the two threaded holes.

[0014] The present invention also provides a usage method of a double-track sliding device, including the following steps:

[0015] First, make a figure-eight knot with a rope on the surfaces of multiple pulleys to facilitate fixing the rope on the pulleys at different positions for establishing different types of dragging pulley systems;

[0016] Second, connect the rope to the goods or the personnel on hand, then connect the rope to the surface of a single pulley, and then connect the single pulley to between two pulleys in a double-track sliding device through the rope;

[0017] Third, when a double-track sliding device needs to rest after moving to a certain position on the surface of the rope, the connection between the double-track sliding device and the rope can be fixed. During operation, first screw out the stud from one threaded hole, and then press the first connecting plate and the second connecting rod successively or simultaneously. After the first connecting plate and the second connecting rod are stressed, they move along the direction of the applied force. At this time, the first connecting plate drives the two first pressing plates to move upward through the two first connecting rods, and the two first pressing plates drive multiple cones to press on the surface of the rope. The second connecting rod drives the two second pressing plates to move downward through the two second connecting rods, so that the two second pressing plates drive multiple cones to press on the surface of the rope. After the stud is threadedly installed in the two threaded holes, the tension spring is stretched by the first pressing plate and the second pressing plate. The first pressing plate and the second pressing plate are used to stably fix the position of the rope, improving the stability of the connection between the double-track sliding device and the rope;

[0018] Fourth, after the staff have completed their rest, the stud can be removed from the screw hole. Then, the tension spring pulls the first pressing plate and the second pressing plate to reset through its own acting force, so that the first pressing plate and the second pressing plate drive the cone to move out of the rope, which is convenient for a double-track sliding device to slide on the rope.

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

[0020] In this solution, by setting multiple pulleys, the rope can be connected to the pulleys at different positions to establish a pulley system for pulling in all directions. Moreover, after the multiple pulleys are stressed, they all rotate on the bearings, enabling the pulleys to have good sliding efficiency, reducing the friction between the rope and the pulleys, and thus facilitating the staff to pull the rope. When crossing in the air, transporting people, or using a zip line, it is particularly smooth, stable, and fluent, improving the convenience and safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Isometric view of the first embodiment of a double-track sliding device of the present invention;

[0022] Figure 2 Cross-sectional view of the first embodiment of a double-track sliding device of the present invention;

[0023] Figure 3 Schematic structural diagram of the second embodiment of a double-track sliding device of the present invention;

[0024] Figure 4 Schematic structural diagram of the positioning mechanism of a double-track sliding device of the present invention;

[0025] Figure 5 Schematic structural diagram of the connection of two first pressing plates of a double-track sliding device of the present invention;

[0026] Figure 6 Connection diagram of the mounting rod, mounting tube, and tension spring of a double-track sliding device of the present invention;

[0027] Figure 7 Connection diagram of the long strip plate, two connecting blocks, and fixed sliding rod of a double-track sliding device of the present invention;

[0028] Figure 8 Connection diagram of a double-track sliding device of the present invention and a rope;

[0029] Figure 9 Schematic structural diagram of the combination connection of a double-track sliding device of the present invention and a single pulley;

[0030] Figure 10Schematic structural diagram of a double-track sliding device for carrying injured persons according to the present invention.

[0031] In the figure: fixed stainless steel rivet 1, body 2, pulley 3, movable pin hole 4, bearing 5, first pressing plate 6, tension spring 7, long strip plate 8, first connecting rod 9, first connecting plate 10, mounting block 11, stud 12, connecting block 13, compression spring 14, cone 15, second connecting plate 16, screw hole 17, mounting rod 18, mounting tube 19, long strip hole 20, second pressing plate 21, fixed slide bar 22, second connecting rod 23. Detailed implementation manner

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. Embodiment 1

[0033] As Figure 1-2 shown, a double-track sliding device includes two bodies 2, and the two bodies 2 are symmetrically arranged. It is characterized in that a plurality of fixed stainless steel rivets 1 are installed through the sides of the two bodies 2, a bearing 5 is fixedly sleeved on the surface of the fixed stainless steel rivet 1, and a pulley 3 is fixedly sleeved on the outer ring surface of a plurality of bearings 5; a plurality of movable pin holes 4 are opened at both ends of the two bodies 2, and four movable pin holes 4 are opened and symmetrically arranged; at least five fixed stainless steel rivets 1 are provided, and the fixed stainless steel rivets 1 are arranged from top to bottom; by setting a plurality of pulleys 3, the ropes can be connected to the pulleys 3 at different positions to establish a pulley system for pulling in all directions, and a plurality of pulleys 3 rotate on the bearings 5 after being stressed, so that the pulleys 3 have good sliding efficiency, which is used to reduce the friction between the ropes and the pulleys 3, thereby facilitating the staff to pull the ropes. When crossing in the air, transporting personnel, and using a zip line, it is particularly smooth, stable and fluent, improving the convenience of operation. Embodiment 2

[0034] As Figure 3-7As shown, a positioning mechanism is provided between two bodies 2 on the basis of the first embodiment; the positioning mechanism includes two first pressing plates 6 and two second pressing plates 21. The two first pressing plates 6 and the two second pressing plates 21 are both located between four pulleys 3 corresponding to the upper and lower positions. At both ends of the bottom of the first pressing plate 6, mounting rods 18 are installed by screws. An installation tube 19 is movably sleeved at the bottom end of the mounting rod 18. The bottom end of the installation tube 19 is installed on the top of the second pressing plate 21 by screws, and a plurality of cones 15 are installed on the surface of the second pressing plate 21 by screws; A tension spring 7 is movably sleeved between the surfaces of the installation tube 19 and the mounting rod 18. Both ends of the tension spring 7 are installed on the surfaces of the first pressing plate 6 and the second pressing plate 21 by screws respectively; Long strip plates 8 are provided on both sides of the first pressing plate 6 and the second pressing plate 21. Long strip holes 20 are formed in the side surfaces of the long strip plates 8. A fixed slide bar 22 is installed between the two ends of the long strip holes 20 by screws. Two connecting blocks 13 are movably sleeved on the surface of the fixed slide bar 22. One ends of the two connecting blocks 13 are installed on the side surfaces of the first pressing plate 6 and the second pressing plate 21 by screws respectively. A compression spring 14 is movably sleeved on the surface of the fixed slide bar 22. Both ends of the compression spring 14 are installed on the surface of the connecting block 13 and the end of the long strip hole 20 by screws respectively; A second connecting plate 16 is provided between the two first pressing plates 6, and a first connecting plate 10 is provided between the two second pressing plates 21. Both ends of the second connecting plate 16 are installed with second connecting rods 23 by screws. One ends of the two second connecting rods 23 are installed on the tops of the two second pressing plates 21 by screws respectively. Both ends of the first connecting plate 10 are installed with first connecting rods 9 by screws. One ends of the two first connecting rods 9 are installed on the bottoms of the two first pressing plates 6 by screws; Mounting blocks 11 are installed on the surfaces of the first connecting plate 10 and the second connecting plate 16 by screws respectively. One ends of the two mounting blocks 11 correspond to each other in position. Threaded holes 17 are formed at one ends of the two mounting blocks 11. A stud 12 is threadedly inserted between the two threaded holes 17; In this solution, by applying an upward force to the first connecting plate 10 and a downward force to the second connecting plate 16, it is convenient for the first connecting plate 10 to push the two first pressing plates 6 to move upward, and the second connecting plate 16 drives the two second pressing plates 21 to move downward. Furthermore, it is convenient for the first pressing plate 6 and the second pressing plate 21 to press on the surface of the rope through the cones 15. Then, the stud 12 is threadedly connected between the two threaded holes 17 to stably connect the rope and a double-track sliding device; As the first pressing plate 6 and the second pressing plate 21 move, both the first pressing plate 6 and the second pressing plate 21 drive the connecting blocks 13 to slide in the long strip holes 20. At the same time, the two connecting blocks 13 slide on the surface of the fixed slide bar 22. When the two connecting blocks 13 move, they squeeze the two compression springs 14. After the two compression springs 14 are stressed, they push the connecting blocks 13 in the reverse direction. Therefore, when the connecting blocks 13 are not affected by external forces, it is convenient for the connecting blocks 13 to be rebounded and reset by the compression springs 14;When the first pressing plate 6 and the second pressing plate 21 move, the first pressing plate 6 and the second pressing plate 21 pull the tension spring 7, and the tension spring 7 generates a reaction force to pull the first pressing plate 6 and the second pressing plate 21 in the reverse direction. When the first pressing plate 6 and the second pressing plate 21 are not limited by external forces, the tension spring 7 can drive the first pressing plate 6 and the second pressing plate 21 to reset, which facilitates the operation of the staff; the mounting rod 18 slides in the mounting tube 19 to prevent the first pressing plate 6 and the second pressing plate 21 from shifting in position during movement, thereby improving the stability of the first pressing plate 6 and the second pressing plate 21 during movement.

[0035] As Figure 3-10 shown, the present invention provides a method for using a double-track sliding device, including the following steps:

[0036] First, tie a figure-eight knot with a rope on the surface of multiple pulleys 3 to facilitate fixing the rope on pulleys at different positions for establishing different types of dragging pulley systems;

[0037] Second, connect the rope to the goods or the personnel on hand, then connect the surface of the rope with a single pulley, and then connect the single pulley to between two pulleys 3 in a double-track sliding device through the rope;

[0038] Third, when a double-track sliding device moves to a certain position on the surface of the rope and needs to rest, the connection between the double-track sliding device and the rope can be fixed. During operation, first screw out the stud 12 from a threaded hole 17, and then press the first connecting plate 10 and the second connecting rod 23 in sequence or simultaneously. After the first connecting plate 10 and the second connecting rod 23 are stressed, they move along the direction of the applied force. At this time, the first connecting plate 10 drives the two first pressing plates 6 to move upward through the two first connecting rods 9, and the two first pressing plates 6 drive multiple cones 15 to press on the surface of the rope. The second connecting rod 23 drives the two second pressing plates 21 to move downward through the two second connecting rods 23, so that the two second pressing plates 21 drive multiple cones 15 to press on the surface of the rope. After the stud 12 is threadedly installed in the two threaded holes 17, the tension spring 7 is stretched by the first pressing plate 6 and the second pressing plate 21. The first pressing plate 6 and the second pressing plate 21 are used to stably fix the position of the rope, improving the stability of the connection between the double-track sliding device and the rope;

[0039] Fourth, after the staff finishes resting, the stud 12 can be removed from the threaded hole 17, and the tension spring 7 pulls the first pressing plate 6 and the second pressing plate 21 to reset by its own acting force, so that the first pressing plate 6 and the second pressing plate 21 drive the cones 15 to move out of the rope, facilitating the sliding of the double-track sliding device on the rope.

[0040] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-track sliding device, comprising two bodies (2), and the two bodies (2) are symmetrically arranged. It is characterized in that A plurality of fixed stainless steel rivets (1) are installed through between the sides of the two bodies (2), a bearing (5) is fixedly sleeved on the surface of the fixed stainless steel rivet (1), and a pulley (3) is fixedly sleeved on the outer ring surface of the plurality of bearings (5); A positioning mechanism is arranged between the two bodies (2); The positioning mechanism includes two first pressing plates (6) and two second pressing plates (21). The two first pressing plates (6) and the two second pressing plates (21) are both located between the four pulleys (3) corresponding to the upper and lower positions. The two ends of the bottom of the first pressing plate (6) are installed with mounting rods (18) through screws. The bottom end of the mounting rod (18) is movably sleeved with a mounting tube (19). The bottom end of the mounting tube (19) is installed on the top of the second pressing plate (21) through screws. A plurality of cones (15) are installed on the surface of the second pressing plate (21) through screws.

2. A double-track sliding device according to claim 1, It is characterized in that A plurality of movable pin holes (4) are opened at both ends of the two bodies (2), and four movable pin holes (4) are opened and are symmetrically arranged.

3. A double-track sliding device according to claim 1, It is characterized in that At least five fixed stainless steel rivets (1) are provided, and the fixed stainless steel rivets (1) are arranged from top to bottom.

4. A double-track sliding device according to claim 3, It is characterized in that A tension spring (7) is movably sleeved between the surfaces of the mounting tube (19) and the mounting rod (18), and both ends of the tension spring (7) are installed on the surfaces of the first pressing plate (6) and the second pressing plate (21) through screws respectively.

5. A double-track sliding device according to claim 4, It is characterized in that Long strip plates (8) are arranged on both sides of the first pressing plate (6) and the second pressing plate (21). Long strip holes (20) are opened on the side surfaces of the long strip plates (8). A fixed sliding rod (22) is installed between the two ends of the long strip holes (20) through screws. Two connecting blocks (13) are movably sleeved on the surface of the fixed sliding rod (22). One ends of the two connecting blocks (13) are installed on the side surfaces of the first pressing plate (6) and the second pressing plate (21) through screws respectively. A compression spring (14) is movably sleeved on the surface of the fixed sliding rod (22). Both ends of the compression spring (14) are installed on the surfaces of the connecting blocks (13) and the ends of the long strip holes (20) through screws respectively.

6. A double-track sliding device according to claim 5, It is characterized in that A second connecting plate (16) is provided between the two first pressing plates (6), and a first connecting plate (10) is provided between the two second pressing plates (21). Both ends of the second connecting plate (16) are mounted with second connecting rods (23) by screws. One ends of the two second connecting rods (23) are respectively mounted on the tops of the two second pressing plates (21) by screws. Both ends of the first connecting plate (10) are mounted with first connecting rods (9) by screws. One ends of the two first connecting rods (9) are mounted on the bottoms of the two first pressing plates (6) by screws.

7. A double-track sliding device according to claim 6, characterized in that mounting blocks (11) are mounted on the surfaces of the first connecting plate (10) and the second connecting plate (16) by screws. One ends of the two mounting blocks (11) correspond to each other in position. Threaded holes (17) are formed at one ends of the two mounting blocks (11). A stud (12) is threadedly inserted between the two threaded holes (17).

8. A double-track sliding device according to claim 7, characterized in that A method for using a double-track sliding device includes the following steps: First, make a figure-eight knot with a rope on the surfaces of multiple pulleys (3) to facilitate fixing the rope on the pulleys at different positions for establishing different types of dragging pulley systems; Second, connect the rope to the goods or the personnel on hand, then connect the surface of the rope with a single pulley, and then connect the single pulley to between the two pulleys (3) in a double-track sliding device through the rope; Third, when a double-track sliding device needs to rest after moving to a certain position on the surface of the rope, the connection between the double-track sliding device and the rope can be fixed. During operation, first screw the stud (12) out of one threaded hole (17), and then sequentially or simultaneously press the first connecting plate (10) and the second connecting rod (23). After the first connecting plate (10) and the second connecting rod (23) are stressed, they move along the direction of the applied force. At this time, the first connecting plate (10) drives the two first pressing plates (6) to move upward through the two first connecting rods (9). The two first pressing plates (6) drive multiple cones (15) to press on the surface of the rope. The second connecting rod (23) drives the two second pressing plates (21) to move downward through the two second connecting rods (23), so that the two second pressing plates (21) drive multiple cones (15) to press on the surface of the rope. After the stud (12) is threadedly installed in the two threaded holes (17), the tension spring (7) is stretched by the first pressing plate (6) and the second pressing plate (21). The first pressing plate (6) and the second pressing plate (21) are used to stably fix the position of the rope, improving the stability of the connection between the double-track sliding device and the rope; Fourth, after the staff have completed their rest, the stud (12) can be removed from the screw hole (17). Then, the tension spring (7) reversely pulls the first pressing plate (6) and the second pressing plate (21) to reset through its own acting force, so that the first pressing plate (6) and the second pressing plate (21) drive the cone (15) to move out of the rope, which is convenient for a double-track sliding device to slide on the rope.

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