A rope descent device

Abstract

The utility model discloses a rope descender, the utility model relates to rope descender technical field, including handle integration, fixed integration and rotation integration, handle integration includes transmission part, push piece, handle, first torsional spring and second torsional spring, fixed integration includes assembly panel and fixed friction block, be provided with connecting piece and sliding slot on the assembly panel, rotation integration includes rope pulley, transmission shaft, rotation board, bearing, movable friction block and ratchet installation spare, the rope pulley and ratchet installation spare assembly are on rotation board, the transmission shaft is worn in sliding slot, one end of rotation board is through first connecting axle rotation assembly one end of assembly panel, the other end of rotation board is connected one end of transmission shaft, the utility model discloses, can reduce the risk of transmission shaft failure, and then improve security, have higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of rope descender technology, specifically a rope descender. Background Technology

[0002] A descent device is an essential safety piece of equipment in rope work, and its internal structure and working principles involve multiple disciplines, such as physics, design, and materials science. The goal of a descent device is to manage the descent speed of the rope while ensuring the safety of the user.

[0003] Based on the above, the inventors have discovered the following problems: Current rope descenders are generally designed to increase rope friction to enhance cushioning, thereby achieving deceleration or locking. However, with the widespread application of rope work, especially in rope rescue, the increased weight of users, such as when multiple users are using the device simultaneously in rescue operations, can lead to problems like slippage, difficulty in transitioning between descent and ascent, and excessive slippage during the transition from ascent to descent, causing panic among personnel. These issues all affect user safety to some extent and are problems that require special attention in the design of rope descenders.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a rope descender in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a rope descender to solve the problems mentioned in the background art.

[0006] A rope descender includes a handle integration, a fixed integration, and a rotating integration, wherein the handle integration includes a transmission element, a lever, a handle, a first torsion spring, and a second torsion spring;

[0007] The fixed assembly includes an assembly plate and a fixed friction block, and the assembly plate is provided with a connector and a sliding groove;

[0008] The rotating assembly includes a pulley, a drive shaft, a rotating plate, a bearing, a movable friction block, and a ratchet mounting component. The pulley and ratchet mounting component are assembled on the rotating plate. The drive shaft passes through the sliding groove. One end of the rotating plate is rotatably assembled on one end of the assembly plate via a first connecting shaft. The other end of the rotating plate is connected to one end of the drive shaft.

[0009] When the handle is rotated, the force is applied to the rotating assembly, thereby controlling the gap between the movable friction block and the fixed friction block.

[0010] Furthermore, the transmission component is mounted on the handle.

[0011] Furthermore, when the handle and transmission component rotate, they transmit force to the paddle, which in turn transmits the force to the drive shaft.

[0012] Furthermore, the transmission component and the paddle are designed as separate units.

[0013] Furthermore, the first torsion spring is used to reset the rotation assembly, and the second torsion spring is used to reset the paddle.

[0014] Furthermore, the transmission component has a disc housing facing the fixed integration side, and the disc housing is located on the outside of the lever.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by controlling the rotation of the handle, the rotation of the handle and the transmission component transmits the force to the paddle. The paddle rotates only within a small range, resulting in high strength. When the paddle acts on the transmission shaft, it minimizes the distance between the point of application and the movable friction block, thereby reducing the lever arm of the transmission shaft, reducing the torque of the transmission shaft, reducing the risk of transmission shaft failure, and thus improving safety. The movable friction block clamps the rope, slowing down the ascent or descent speed or braking, reducing personnel panic, and improving safety performance. Attached Figure Description

[0016] Figure 1 The image shown is an exploded view of a rope descender provided by this utility model.

[0017] Figure 2 The image shown is a front view of a rope descender provided by this utility model.

[0018] Figure 3 The image shown is a side view of a rope descender provided by this utility model.

[0019] Figure 4 The image shown is a second front view of a rope descender provided by this utility model.

[0020] Figure 5 The image shown is an exploded view of a rope descender rotation integration provided by this utility model.

[0021] Figure 6 The image shown is a cross-sectional view of a rope descender in its rotational integrated locking state, as provided by this utility model.

[0022] Figure 7 The image shown is a rear view of the handle controlling the gap size when using a rope descender provided by this utility model.

[0023] Figure 8 The image shown is a rear view of a rope descender provided by this utility model during storage.

[0024] In the diagram: 21. Connector; 22. Fixed friction block; 23. Sliding groove; 25. Assembly plate; 3. Rotation integration; 31. Rope pulley; 32. Drive shaft; 33. Rotating plate; 34. Ratchet mounting piece; 37. Bearing; 38. Movable friction block; 4. Handle integration; 41. Transmission component; 42. Paddle; 43. Handle; 431. Circular housing; 5. Rope; 51. Rope end; 6. Gap; 71. First torsion spring; 72. Second torsion spring; 81. First connecting shaft. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] like Figures 1 to 8 As shown, it includes a fixed integration 2, a rotating integration 3, and a handle integration 4. The fixed integration 2 mainly includes an assembly plate 25 and a fixed friction block 22. The assembly plate 25 is provided with a connector 21 and a sliding groove 23. The fixed friction block 22 and the assembly plate 25 can also be made into an integral structure.

[0028] The rotating assembly 3 mainly includes a rope wheel 31, a drive shaft 32, a bearing 37, a movable friction block 38, and a rotating plate 33. The rope wheel 31 and the ratchet mounting part 34 are assembled on the rotating plate 33. The drive shaft 32 passes through the sliding groove 23. One end of the rotating plate 33 is rotatably assembled on the mounting plate 25 through the first connecting shaft 81, and the other end is connected to one end of the drive shaft 32. The other end of the drive shaft 32 is assembled with the handle assembly 4.

[0029] The handle assembly 4 includes a handle 43, a transmission component 41, a paddle 42, a first torsion spring 71, and a second torsion spring 72. The handle 43 transmits force to the transmission shaft 32 through the transmission component 41 and the paddle 42, which drives the rotation assembly 3 to move along the sliding groove 23. As the position of the transmission shaft 32 in the sliding groove 23 changes, the gap 6 between the movable friction block 38 and the fixed friction block 22 changes accordingly.

[0030] like Figure 4 As shown, when the rope descender is in use, the rope end 51 of the rope 5 passes through the gap 6 between the movable friction block 38 and the fixed friction block 22 after wrapping around the rope pulley 31. The rope pulley 31 may be further provided with a rope groove 311 around its periphery, as shown in the diagram. Figure 5As shown. The contact points between the fixed friction block 22 and the rope 5 can also be provided with rope grooves. In this way, the rope 5 is basically located in the rope groove when it travels in the rope descender, thereby further improving the stability of the rope 5 in the rope descender and effectively preventing the rope 5 from slipping.

[0031] Specifically, when the user connects to the rope descender via connector 21, the user's weight is applied to the rope descender through connector 21. The user's weight exerts a clockwise pushing force on the movable friction block 38. This causes one end of the rotating assembly 3, which is assembled with the drive shaft 32, to rotate clockwise along the sliding groove 23, i.e., towards the friction block 22. The gap 6 between the movable friction block 38 and the fixed friction block 22 decreases accordingly. The rope pulley 31 and the fixed friction block 22 press against the rope 5, thereby locking the rope 5. The rope descender stops moving along the rope when the rope 5 is locked. If the user operates the handle assembly 4 to rotate the rotating assembly 3 away from the fixed friction block 22, the gap 6 increases, the rope 5 is unlocked, and the rope descender descends along the rope 5 under the user's weight. When the user operates the handle assembly 4 or releases the rope end 51, the rope 5 is immediately locked under the user's weight.

[0032] Furthermore, the dimensions and positional relationship of the sliding groove 23, the fixed friction block 22, and the movable friction block 38 are preferably configured such that when the drive shaft 32 is close to the end of the sliding groove 23 away from the fixed friction block 22, the gap 6 between the movable friction block 38 and the fixed friction block 22 allows the rope 5 to pass smoothly, and when the drive shaft 32 is close to the other end of the sliding groove 23 near the fixed friction block 22, the gap 6 between the movable friction block 38 and the fixed friction block 22 can lock the rope 5.

[0033] Therefore, in the rope descender provided by this utility model, the distance from the center of the left rope to the first connecting shaft 81 is greater than the distance from the center of the right rope to the second connecting shaft, which can effectively utilize the user's gravity to lock the rope 5. Furthermore, as the user's weight increases, the force driving the rotation of the integrated 3 via the rope will further increase, further reducing the gap 6 between the movable friction block 38 and the fixed friction block 22, thus locking the rope 5 faster and better, providing excellent safety.

[0034] The rope descender provided by this utility model has an increased force between the handle-controlled movable friction block 38 and the fixed friction block gap 6 when the user's weight increases. The portable design of the rope descender results in a small size and low strength of the drive shaft 32, which is prone to bending and damage when the user is heavy. Adding a paddle 42 to the handle integration 4 can prevent the transmission component 41 from directly contacting the drive shaft 32, thereby protecting the drive shaft 32. The following is a detailed description with reference to the accompanying drawings.

[0035] Based on Embodiment 1, this embodiment has made a special design to solve the above problems by adding a paddle 42 to the handle integration of the rope descender. This not only prevents the transmission component 41 from directly contacting the transmission shaft 32, but also reduces the space occupied by the transmission component 41 in the handle.

[0036] like Figure 7 As shown, the transmission components 41 and 42 of a traditional rope descender are designed as a single unit and are mounted on the handle 43. Since the handle needs to rotate when it is working, the arrangement of the other parts inside the handle results in a longer transmission shaft 32. When the same force is applied to the transmission shaft 32, the torque is larger, which causes the transmission shaft 32 to bend, affecting the performance of the rope descender. When the torque of the transmission shaft 32 is reduced, there is insufficient space in the handle 43.

[0037] The above problems can be better solved by designing the transmission component 41 and the paddle 42 as separate parts;

[0038] The transmission component 41 is mounted on the handle 43 and is an integral part of the handle 43. Since the transmission component 41 is an integral part of the handle 43, its size can be designed to be small. In addition, the transmission component 41 is mounted on the edge of the handle, so the rotation of the handle will not affect the arrangement of the components in the center area of ​​the handle. The paddle 42 only rotates when controlling the gap 6 between the movable friction block 38 and the fixed friction block 22, and occupies only a small area inside the handle 43. Therefore, the paddle 42 can be made larger according to the shape of the transmission shaft 32, and the lever arm of the force can be reduced according to the position of the transmission shaft 32, thereby reducing the torque and reducing the possibility of the transmission shaft 32 bending.

[0039] like Figure 8 As shown, without applying force, the first torsion spring 71 assists in fixing the rotating integrated 3 in the corresponding position, and the second torsion spring 72 assists in fixing the paddle 42 in the corresponding position.

Claims

1. A rope descender, characterized in that, It includes a handle integration (4), a fixed integration (2) and a rotating integration (3), wherein the handle integration (4) includes a transmission component (41), a paddle (42), a handle (43), a first torsion spring (71) and a second torsion spring (72); The fixed assembly (2) includes an assembly plate (25) and a fixed friction block (22), and the assembly plate (25) is provided with a connector (21) and a sliding groove (23); The rotating assembly (3) includes a pulley (31), a drive shaft (32), a rotating plate (33), a bearing (37), a movable friction block (38), and a ratchet mounting component (34). The pulley (31) and the ratchet mounting component (34) are mounted on the rotating plate (33). The drive shaft (32) passes through the sliding groove (23). One end of the rotating plate (33) is rotatably mounted on one end of the mounting plate (25) via a first connecting shaft (81). The other end of the rotating plate (33) is connected to one end of the drive shaft (32). When the handle assembly (4) rotates, it applies force to the rotation assembly (3), thereby controlling the size of the gap (6) between the movable friction block (38) and the fixed friction block (22).

2. The rope descender according to claim 1, characterized in that, The transmission component (41) is mounted on the handle (43).

3. A rope descender according to claim 2, characterized in that, When the handle (43) and the transmission component (41) rotate, they transmit force to the paddle (42), which in turn transmits the force to the transmission shaft (32).

4. A rope descender according to claim 3, characterized in that, The transmission component (41) and the lever (42) are designed as separate units.

5. A rope descender according to claim 1, characterized in that, The first torsion spring (71) is used to reset the rotation assembly (3), and the second torsion spring (72) is used to reset the paddle (42).

6. A rope descender according to claim 1, characterized in that, The transmission component (41) has a disc housing (431) on the side facing the fixed integration (2), and the disc housing (431) is located on the outside of the paddle (42).

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