A low-wear, durable riser
By designing a convertible auxiliary hand structure and using wear-resistant materials, the inconvenience of using handheld ascenders with both hands and one hand has been solved, improving climbing efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HETAI SECURITY & PROTECTION CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-26
AI Technical Summary
Existing handheld ascenders are inconvenient to use with both hands and one hand, reducing climbing efficiency.
A low-wear, durable riser with a convertible auxiliary hand structure, including rubber blocks and an electroplated coating, has been designed to increase adaptability and wear resistance. The flexible switching between two-handed and one-handed operation is achieved through rubber block limiting and protrusion insertion.
It enables flexible switching between two-handed and one-handed ascenders, improving climbing efficiency and safety while reducing wear and tear.
Smart Images

Figure CN224269955U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of riser technology, and specifically to a low-wear, durable riser. Background Technology
[0002] Ascenders are a crucial component of any rappelling system. They are core equipment used by fire and rescue organizations to tow heavy objects during accidents, acting as a "repeated rappelling" device. Furthermore, with the increasing popularity and sophistication of outdoor mountaineering, ascenders have become essential self-protection equipment for mountaineering and caving enthusiasts worldwide when traversing dangerous areas. They are primarily used for ascending steep terrain, caving ascents, or for protection, and are used in conjunction with harnesses and main ropes. Currently, ascenders are categorized into three types: hand-grip ascenders, chest ascenders, and foot ascenders. Hand-grip ascenders are further divided into left-handed and right-handed types.
[0003] Existing handheld ascenders are operated with one hand. In actual climbing, it doesn't matter whether the ascender is held by the left or right hand. Often, both hands are used together to exert force downwards. A one-handed ascender only has a grip, making it inconvenient to use with both hands, thus reducing the effectiveness of both hands and lowering climbing efficiency. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a low-wear, durable riser that can be switched between two-handed and one-handed operation, increasing adaptability, so as to solve the problems mentioned in the background art.
[0005] This utility model is achieved through the following technical solution: a low-wear durable ascender, including an ascender body, an auxiliary hand at the handle of the ascender body, mounting grooves on the outer surfaces of the handle and the auxiliary hand, a fixing plate in each mounting groove, multiple fixing rods mounted on the outer surfaces of the fixing plates, rubber blocks mounted on the outside of each fixing rod, and rubber layers mounted between the fixing plates. One end of the auxiliary hand protrudes to form a connecting part, and a fixing mechanism connected to the ascender is mounted on the outside of the connecting part.
[0006] As a preferred technical solution, the fixing mechanism includes a shaft, multiple bearings, and multiple fixing blocks. The fixing blocks are arranged one above the other on the outside of the connecting part. One end of each fixing block is installed on the riser body. The shaft is vertically installed on the connecting part. Each fixing block has a mounting hole at its center. The bearings are installed in the mounting holes. Both ends of the shaft are installed in the inner rings of the bearings.
[0007] As a preferred technical solution, one end of the riser body is provided with a groove, and a protrusion that matches the groove is formed on the outer side of the auxiliary hand.
[0008] As a preferred technical solution, both ends of the fixing plate are provided with first screw holes, and the inner wall surface of the mounting groove is provided with second screw holes opposite to the first screw holes. Screws are threaded into the corresponding first screw holes and second screw holes.
[0009] As a preferred technical solution, the outer side of the rubber layer is flush with the outer side of the riser body or the auxiliary hand.
[0010] As a preferred technical solution, a magnet is embedded in the inner side of the auxiliary handpiece, and the magnet is attracted and fixed to the riser body.
[0011] As a preferred technical solution, both the surface of the riser body and the auxiliary hand are provided with an electroplated coating.
[0012] The beneficial effects of this utility model are: the utility model has a simple structure, can be switched between two hands and one hand, increasing adaptability, the rubber block can limit the palm of the hand holding the auxiliary hand and the handle, the rubber layer increases the friction between the hand and the palm, and the electroplated coating increases the wear resistance. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a side view of the present invention;
[0016] Figure 3 This is a schematic diagram of the structure of this utility model after the fixing plate is removed;
[0017] Figure 4 This is a schematic diagram of the structure of the auxiliary handle of this utility model after it is opened.
[0018] The components are as follows: 1. Elevator body; 2. Auxiliary hand; 3. Rubber layer; 4. Rubber block; 5. Screw; 6. Connecting part; 7. Fixing block; 8. Shaft; 9. Protrusion; 10. Groove; 11. Fixing plate; 12. Mounting slot; 13. Second screw hole. Detailed Implementation
[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0020] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0021] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a low-wear durable ascender, including an ascender body 1. The ascender body 1 has a handle 2 at its handle. The outer surfaces of the handle and the auxiliary hand 2 are provided with mounting grooves 12. Each mounting groove 12 is provided with a fixing plate 11. Multiple fixing rods are installed on the outer surfaces of the fixing plates 11. Rubber blocks 4 are installed on the outside of each fixing rod. Rubber layers 3 are installed between the rubber blocks 4 on the fixing plates 11. One end of the auxiliary hand 2 protrudes to form a connecting part 6. A fixing mechanism for connecting to the ascender is installed on the outside of the connecting part 6.
[0023] In this embodiment, the fixing mechanism includes a shaft 8, multiple bearings, and multiple fixing blocks 7. The fixing blocks 7 are arranged one above the other on the outside of the connecting part 6. One end of each fixing block 7 is installed on the riser body 1. The shaft 8 is vertically installed on the connecting part 6. Each fixing block 7 has a mounting hole at its center. The bearings are installed in the mounting holes. Both ends of the shaft 8 are installed in the inner rings of the bearings.
[0024] In this embodiment, one end of the riser body 1 is provided with a groove 10, and a protrusion 9 that matches the groove 10 is formed on the outer side surface of the auxiliary hand 2.
[0025] In this embodiment, both ends of the fixing plate 11 are provided with first screw holes, and the inner wall surface of the mounting groove 12 is provided with second screw holes opposite to the first screw holes. Screws 5 are threaded into the corresponding first screw holes and second screw holes. The fixing plate can be easily disassembled by fixing with screws. After unscrewing the screws, the fixing plate and rubber block can be taken out and replaced.
[0026] In this embodiment, the outer side of the rubber layer 3 is flush with the outer side of the riser body 1 or the auxiliary hand 2, so as to avoid protrusion and affect the comfort of holding.
[0027] In this embodiment, a magnet is embedded in the inner side of the auxiliary hand 2. The magnet is attracted and fixed to the riser body 1. The magnetic attraction of the magnet can attract the riser and the auxiliary hand together, thus preventing them from opening on their own.
[0028] In this embodiment, both the surface of the riser body 1 and the auxiliary hand 2 are provided with an electroplating coating. The electroplating coating is hard chrome plating, and the coating hardness can reach HV 800~1000 (2~3 times higher than ordinary steel), which significantly reduces friction and wear, thereby increasing wear resistance.
[0029] Normally, the auxiliary hand rests against the ascender body, allowing for one-handed operation. When operating with both hands, the auxiliary hand is opened outwards around the shaft. The rotation of the auxiliary hand drives the protrusion until it is inserted into the groove. The insertion of the protrusion and groove increases the contact area between the auxiliary hand and the ascender body, which can better distribute the weight acting on the shaft and increase safety.
[0030] When held in hand, the palm enters between the limiting blocks, which restrict the palm's position vertically. The inner side of the palm contacts the rubber layer, increasing safety and reducing the probability of slipping out of the hand through friction.
[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. A low-wear, durable riser characterized by: The device includes an ascender body (1), with a secondary hand (2) at the handle of the ascender body (1). The outer surfaces of the handle and the secondary hand (2) are provided with mounting grooves (12). Each mounting groove (12) is provided with a fixing plate (11). Multiple fixing rods are installed on the outer surfaces of the fixing plates (11). Rubber blocks (4) are installed on the outside of each fixing rod. Rubber layers (3) are installed between the rubber blocks (4) on the fixing plates (11). One end of the secondary hand (2) protrudes to form a connecting part (6). A fixing mechanism connected to the ascender is installed on the outside of the connecting part (6).
2. A low-wear, long-lasting elevator as claimed in claim 1, characterized in that: The fixing mechanism includes a shaft (8), multiple bearings and multiple fixing blocks (7). The fixing blocks (7) are arranged one above the other on the outside of the connecting part (6). One end of each fixing block (7) is installed on the riser body (1). The shaft (8) is vertically installed on the connecting part (6). Each fixing block (7) has a mounting hole at its center. The bearings are installed in the mounting holes. Both ends of the shaft (8) are installed in the inner ring of the bearing.
3. The low-wear, durable riser of claim 1, wherein: The riser body (1) has a groove (10) at one end, and the auxiliary hand (2) protrudes out on the outer side to form a protrusion (9) that matches the groove (10).
4. The low-wear, durable riser of claim 1, wherein: Both ends of the fixing plate (11) are provided with first screw holes, and the inner wall surface of the mounting groove (12) is provided with second screw holes at the positions corresponding to the first screw holes. Screws (5) are threaded into the corresponding first screw holes and second screw holes.
5. The low-wear, durable riser of claim 1, wherein: The outer side of the rubber layer (3) is flush with the outer side of the riser body (1) or the auxiliary hand (2).
6. The low-wear, durable riser of claim 1, wherein: A magnet is embedded in the inner side of the auxiliary hand (2), and the magnet is attracted and fixed to the riser body (1).
7. The low-wear, durable riser of claim 1, wherein: Both the riser body (1) and the auxiliary hand (2) have an electroplated coating on their surfaces.