Improved handle-free ascender
By innovating the connection between the main shell, secondary shell, and rope locking mechanism, and combining the preloaded torsion spring and spring button pin assembly, the problem of easy failure of existing handleless ascenders in complex structures and muddy environments has been solved, achieving convenient operation and durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYANG BINGFENG SAFETY EQUIPMENT CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-21
AI Technical Summary
Existing handleless ascenders are prone to failure in complex structures and muddy environments, are inconvenient to use and store, and require finger operation during use, which is also inconvenient.
The main shell, sub-shell, and rope locking mechanism are connected by a pivot shaft. A pre-compression torsion spring provides pre-pressure for the rope channel, and a spring button pin assembly enables easy operation of the rope channel. The main shell is equipped with anti-slip protrusions and sand-collecting grooves to improve grip and cleaning convenience.
The operation of the rope channel is simplified, improving ease of use and durability, preventing failure in muddy and sandy environments, and its simple structure makes it easy to store.
Smart Images

Figure CN224141425U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of outdoor products, and specifically relates to an improved handleless ascender. Background Technology
[0002] Rope ascenders are frequently used in mountaineering, rappelling, rescue, and outdoor sports. Current ascenders require a dedicated handle for the user to grip and ascend. These ascenders are generally bulky, inconvenient to store, and unsightly. Handleless ascenders have also emerged, such as patent application number 202220601745.3, entitled "A Handleless Ascender." Its rope locking mechanism, sub-shell, and locking block use a pre-warning reset torsion spring to open or close the rope channel and provide pre-pressure to the rope within. This handleless ascender has a complex internal structure, and prolonged use in muddy or sandy environments can cause the locking block and rope locking mechanism to lose their springback, significantly reducing the ascender's efficiency and even rendering it unusable. Furthermore, opening the sub-shell requires inserting a finger into the locking block and pulling it outwards before rotating it to separate the locking latch from the locking limit post, which is also inconvenient. Utility Model Content
[0003] This invention provides an improved handleless ascender to solve the technical problems existing in this field.
[0004] This utility model provides an improved handleless ascender to solve the above-mentioned technical problems. It includes a main shell, a secondary shell, and a rope locking mechanism. Both the secondary shell and the rope locking mechanism are connected to the main shell via a pivot shaft. A preloaded torsion spring is provided on the pivot shaft. One end of the preloaded torsion spring is fixedly mounted on the pivot shaft or the main shell, and the other end is drivenly connected to the rope locking mechanism. A spring button pin assembly is also provided on the main shell, and a positioning locking hole is provided on the secondary shell. When the spring button pin assembly is connected to the positioning locking hole, the rope channel of the main shell is closed. When the spring button pin assembly is pressed to unlock it from the positioning locking hole, the secondary shell can be rotated to open the rope channel.
[0005] Furthermore, the spring button pin assembly includes an unlock button and a button base. The button base is disposed on the main housing, the unlock button is movably disposed on the button base and its travel is limited by a limit pin, and a return spring is also provided between the unlock button and the button base.
[0006] Furthermore, the lower and upper ends of the main shell are respectively provided with connecting hook holes and locking holes.
[0007] Furthermore, the main shell has several anti-slip protrusions at the hand grip position, and finger grooves are formed between the anti-slip protrusions to facilitate finger grip.
[0008] Furthermore, a sand-collecting groove is provided on the inner side of the main shell; the rope-locking mechanism is provided with several anti-slip spikes on the side facing the rope passage, and the anti-slip spikes are inclined downwards.
[0009] This utility model relates to an improved handleless ascender, comprising a main shell, a secondary shell, and a rope locking mechanism. Both the secondary shell and the rope locking mechanism are connected to the main shell via a pivot shaft. A preloaded torsion spring is mounted on the pivot shaft, with one end fixed to the pivot shaft or the main shell and the other end driven by the rope locking mechanism. The main shell also has a spring-loaded button pin assembly, and the secondary shell has a positioning locking hole. When the spring-loaded button pin assembly is connected to the positioning locking hole, the rope channel of the main shell is closed. When the spring-loaded button pin assembly is pressed to unlock it from the positioning locking hole, the secondary shell can be rotated to open the rope channel. During use, the rope locking mechanism provides preload to the rope in the rope channel through the preloaded torsion spring, and the rope channel is opened or closed by connecting or separating the secondary shell from the spring-loaded button pin assembly. The structure is simpler and more convenient to use. Attached Figure Description
[0010] Figure 1 and Figure 2 A schematic diagram of the three-dimensional structure of the improved handleless ascender;
[0011] Figure 3 A cross-sectional view of the improved handleless ascender when closed.
[0012] Figure 4 A schematic diagram of the secondary housing in the open state of the improved handleless ascender;
[0013] Figure 5 Schematic diagram of the button pin assembly structure
[0014] Figure 6 This is a schematic diagram of the three-dimensional structure of the rope locking mechanism. Detailed Implementation
[0015] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." The following descriptions are preferred embodiments of the present invention; however, these descriptions are intended to illustrate the general principles of the invention and are not intended to limit its scope. The scope of protection of this invention is determined by the appended claims.
[0016] The present invention will be further described in detail below with reference to the accompanying drawings. The directional terms such as "upper", "lower", "left", "right", "inner" and "outer" described in the specification are only for better understanding and explanation, and are not intended to limit the present invention.
[0017] Example
[0018] like Figure 1-6 As shown, an improved handleless ascender includes a main shell 1, a secondary shell 2, and a rope locking mechanism 3. Both the secondary shell 2 and the rope locking mechanism 3 are connected to the main shell 1 via a pivot shaft 4. A preloaded torsion spring 5 is provided on the pivot shaft 4. One end of the preloaded torsion spring 5 is fixedly mounted on the pivot shaft 4 or the main shell 1, and the other end of the preloaded torsion spring 5 is drivenly connected to the rope locking mechanism 3. The main shell 1 is also provided with a spring button pin assembly 6, and the secondary shell 2 is provided with a positioning locking hole 2a. When the spring button pin assembly 6 is connected to the positioning locking hole 2a, the rope channel 1a of the main shell 1 is in a closed state. When the spring button pin assembly 6 is pressed to unlock it from the positioning locking hole 2a, the secondary shell 2 can be rotated and the rope channel 1a can be opened.
[0019] Preferably, the spring button pin assembly 6 includes an unlock button 6a and a button base 6b. The button base 6b is disposed on the main housing 1, and the unlock button 6a is movably disposed on the button base 6b and its travel is limited by a limiting pin 6c. A return spring 6d is also provided between the unlock button 6a and the button base 6b.
[0020] In use, pressing the unlock button 6a of the spring button pin assembly 6 unlocks the positioning locking hole 2a of the secondary housing 2 from the unlock button 6a. At this point, the secondary housing 2 can be rotated to open the rope channel 1a. Then, pressing the rope locking mechanism 3 causes it to deflect, allowing ropes to be inserted into or removed from the rope channel 1a. The torque of the preload torsion spring 5 provides preload pressure to the rope in the rope channel 1a. After inserting or removing the rope, rotating the secondary housing 2 causes the unlock button 6a to engage with the positioning locking hole 2a, closing the rope channel 1a. Thus, during use, the rope locking mechanism 3 provides preload pressure to the rope in the rope channel 1a through the preload torsion spring 5, and the opening or closing of the rope channel 1a is achieved by connecting or separating the secondary housing 2 from the spring button pin assembly 6. This results in a simpler structure and greater ease of use.
[0021] More preferably, the lower end and upper end of the main shell 1 are respectively provided with a connecting hook hole 1b and a locking hole 1c. The operator can use a locking hook or the like to hook into the connecting hook hole 1b for connection and fixation. At the same time, other rope descending equipment can be connected through the locking hook and the locking hole 1c to improve the practical performance of the ascender.
[0022] More preferably, the main shell 1 has a plurality of anti-slip protrusions 1d at the hand grip position, and the anti-slip protrusions 1d form a finger groove. When the user operates, the finger groove increases the grip friction to prevent slipping and make it easier to grip.
[0023] More preferably, the inner side of the main shell 1 is also provided with a sand-collecting groove 1e. Even if the handleless ascender is used for a long time in an environment with mud and sand, the mud and sand brought into the main shell 1 by the rope can be collected by the sand-collecting groove 1e, which is convenient for cleaning when not in use and prevents the ascender from failing during use. The rope locking mechanism 3 is provided with a number of anti-slip spikes 3a on the side facing the rope passage 1a. The anti-slip spikes 3a are inclined downward to prevent falling.
[0024] This utility model relates to an improved handleless ascender, comprising a main shell, a secondary shell, and a rope locking mechanism. Both the secondary shell and the rope locking mechanism are connected to the main shell via a pivot shaft. A preloaded torsion spring is mounted on the pivot shaft, with one end fixed to the pivot shaft or the main shell and the other end driven by the rope locking mechanism. The main shell also has a spring-loaded button pin assembly, and the secondary shell has a positioning locking hole. When the spring-loaded button pin assembly is connected to the positioning locking hole, the rope channel of the main shell is closed. When the spring-loaded button pin assembly is pressed to unlock it from the positioning locking hole, the secondary shell can be rotated to open the rope channel. During use, the rope locking mechanism provides preload to the rope in the rope channel through the preloaded torsion spring, and the rope channel is opened or closed by connecting or separating the secondary shell from the spring-loaded button pin assembly. The structure is simpler and more convenient to use.
[0025] The foregoing description illustrates and describes preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. An improved handleless ascender, comprising a main shell (1), a secondary shell (2) and a rope locking mechanism (3), the secondary shell (2) and the rope locking mechanism (3) are connected with the main shell (1) through a pivot shaft (4); characterized in that: A preloaded torsion spring (5) is provided on the pivot shaft (4). One end of the preloaded torsion spring (5) is fixedly provided on the pivot shaft (4) or the main shell (1). The other end of the preloaded torsion spring (5) is driven to connect with the rope locking mechanism (3). A spring button pin assembly (6) is also provided on the main shell (1). A positioning locking hole (2a) is provided on the sub-shell (2). When the spring button pin assembly (6) is connected to the positioning locking hole (2a), the rope channel (1a) of the main shell (1) is closed. When the spring button pin assembly (6) is pressed to unlock it from the positioning locking hole (2a), the sub-shell (2) can be rotated and the rope channel (1a) can be opened.
2. An improved handleless riser as claimed in claim 1, wherein: The spring button pin assembly (6) includes an unlock button (6a) and a button base (6b). The button base (6b) is disposed on the main housing (1). The unlock button (6a) is movably disposed on the button base (6b) and its travel is limited by a limit pin (6c). A return spring (6d) is also disposed between the unlock button (6a) and the button base (6b).
3. An improved handleless riser as claimed in claim 2 wherein: The main shell (1) is provided with a connecting hook hole (1b) at the lower end and a locking hole (1c) at the upper end.
4. An improved handleless lift as claimed in claim 1 or 2 or 3 wherein: The main shell (1) has a number of anti-slip protrusions (1d) at the hand grip position, and finger grooves are formed between the anti-slip protrusions (1d) to facilitate finger grip.
5. An improved handleless riser as claimed in any one of claims 1 to 3 wherein: The inner side of the main shell (1) is also provided with a sand-containing groove (1e); the rope locking mechanism (3) is provided with a number of anti-slip spikes (3a) on the side facing the rope channel (1a), and the anti-slip spikes (3a) are inclined downward.
Citation Information
Patent Citations
Handle-free ascender
CN217391528U