Short handle opening and closing descender

Abstract

The utility model discloses a short handle open and close type descender, including short handle, cavity groove shell, lid, the lid axle rotation is installed on the cavity groove shell, the inside of cavity groove shell is equipped with rope wheel groove, rotation is installed with the wheel column in the rope wheel groove, is equipped with the fixed rope card wheel of sleeve on the wheel column, the outside of cavity groove shell is equipped with open and close groove, is equipped with the pressing column limit arc hole in the open and close groove, fixed mounting has the compression column on the rope card wheel, the end of compression column extends to the open and close groove through the pressing column limit arc hole, rotation is installed with open and close press frame in the open and close groove, is equipped with the cam limit hole on the short handle, is installed with open and close and pushes away the cam in the cam limit hole. Advantageous effect lies in: through the lengthening folding cake of folding on short handle, the lengthening of handle can be realized, does not occupy extra space after folding, and the convenience storage is set locking part to lid and short handle, cooperates the anti -down mechanism in the inside, and the security is higher.

Description

Technical Field

[0001] This utility model relates to the field of descenders, and in particular to a short-handle opening and closing descender. Background Technology

[0002] A descender is a professional safety device that uses friction to achieve controlled descent. It is suitable for applications such as mountaineering, outdoor training, and escape. The existing openable descender is widely used. It uses an internal rope wheel to half-wind the safety rope and locks it in place through a locking mechanism. The handle is used to open and close the lock, which facilitates descent. However, its handle is relatively long, which reduces its storage performance. Furthermore, the half-winding makes it easy to reverse the device, and the handle is prone to accidental activation, which also reduces its safety. Utility Model Content

[0003] The purpose of this invention is to provide a short-handle opening and closing type descender in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A short-handle opening and closing type descender includes a short handle, a cavity shell, and a rotating cover. The rotating cover is rotatably mounted on the cavity shell. The inner side of the cavity shell has a rope pulley groove, and a pulley post is rotatably mounted in the rope pulley groove. A rope retainer is sleeved and fixed on the pulley post. The outer side of the cavity shell has an opening and closing groove, and a pressure column limiting arc hole is provided in the opening and closing groove. A pressure-bearing column is fixedly mounted on the rope retainer, and the end of the pressure-bearing column extends into the opening and closing groove through the pressure column limiting arc hole. An opening and closing type descender is rotatably mounted in the opening and closing groove. The pressure frame has a cam limiting hole on the short handle, in which an opening and closing actuating cam is installed. The center shaft of the opening and closing actuating cam is rotatably mounted into the opening and closing groove. The side of the opening and closing actuating cam is pressed against one end of the opening and closing pressure frame. The side of the short handle near the cavity shell has a locking handle movable groove. An opening and closing locking handle is installed in the locking handle movable groove through a locking handle torsion spring shaft. The outer side of the cavity shell has a one-way slot, and one end of the opening and closing locking handle is locked into the one-way slot.

[0006] Furthermore, the outer side of the rotating cover is provided with a cover locking lever, the cover locking lever is provided with a lever torsion spring shaft hole, the lever torsion spring shaft is provided in the lever torsion spring shaft hole, the cover locking lever is installed on the rotating cover through the lever torsion spring shaft, the rotating cover is provided with a cover side strip hole groove, the cover side strip hole groove is provided with a lever locking block, the lever locking block is connected to the cover locking lever, the inner wall of the cover side strip hole groove on one side of the lever locking block is provided with an inner side groove, one end of the wheel column is provided with an inner chuck, the inner chuck is located in the cover side strip hole groove.

[0007] Furthermore, the rope pulley groove is provided with a limiting groove stop, and the edge of the rope chuck is provided with an anti-tipping protrusion.

[0008] Furthermore, a rope-side opening is provided on the side of the cavity shell.

[0009] Furthermore, a folding groove is provided on the outer side of the short handle, and an extended folding handle is rotatably installed in the folding groove.

[0010] Furthermore, a cam cover is installed on the cam limiting hole, and the opening and closing groove cover is provided with an opening and closing groove half-limiting cover.

[0011] The beneficial effects are as follows: The short-handle opening and closing type descender of this utility model can extend the handle by folding the extended folding disc on the short handle. After folding, it does not take up extra space and is easy to store. The rotating cover and the short handle are equipped with locking parts, which, together with the internal anti-tipping mechanism, make it safer. Attached Figure Description

[0012] Figure 1 This is a structural diagram of a short-handle opening and closing type descender according to the present invention;

[0013] Figure 2 This is an exploded schematic diagram of a short-handle opening and closing type descender according to the present invention;

[0014] Figure 3 This is a diagram showing the installation structure of the short handle and the opening / closing lock handle of a short handle opening / closing type descender according to this utility model;

[0015] Figure 4 This is a diagram showing the rope chuck installation structure of a short-handle opening and closing type descender described in this utility model;

[0016] Figure 5 This utility model describes a rotating cover and cover locking lever mounting structure for a short-handle opening and closing type descender. Figure 1 ;

[0017] Figure 6 This utility model describes a rotating cover and cover locking lever mounting structure for a short-handle opening and closing type descender. Figure 2 .

[0018] The annotations in the attached figures are explained as follows:

[0019] 1. Short handle; 2. Cavity shell; 3. Rotating cover; 4. Opening and closing lock handle; 5. Extended folding handle; 6. Anti-tipping protrusion; 7. Rope retainer; 8. Cover locking lever; 9. Cam cover; 10. Lever locking block; 11. Limiting groove stop; 12. Rope side opening; 13. Wheel post; 14. One-way locking groove; 15. Opening and closing cam; 16. Cam limiting hole; 17. Opening and closing groove semi-limiting cover; 18. Opening and closing pressure frame; 19. Pressure column; 20. Opening and closing groove; 21. Pressure column limiting arc hole; 22. Inner side groove of hole; 23. Lever torsion spring shaft hole; 24. Cover side strip hole groove; 25. Inner chuck. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] The following is combined Figures 1 to 2 The short-handle opening and closing type descender provided in this embodiment will be further described as follows:

[0022] Please refer to Figure 1 The present invention provides a short-handle opening and closing type descender, including a short handle 1, a cavity shell 2, and a rotating cover 3. The rotating cover 3 is rotatably mounted on the cavity shell 2. The cavity shell 2 and the rotating cover 3 form a complete shell. The rotating cover 3 can be rotated to realize the closing and opening of the cover, which facilitates the internal coiling operation.

[0023] Reference Figure 4 The inner side of the cavity shell 2 is provided with a rope wheel groove, and a wheel column 13 is rotatably installed in the rope wheel groove. A rope clamping wheel 7 is sleeved and fixed on the wheel column 13. The rope clamping wheel 7 is a commonly used accessory for rope descenders. It is elliptical in shape and has a rope clamping groove on the side to facilitate the clamping of the rope and realize descent.

[0024] Reference Figure 2 The outer side of the cavity shell 2 is provided with an opening and closing groove 20, and the opening and closing groove 20 is provided with a pressure column limiting arc hole 21. A pressure column 19 is fixedly installed on the rope chuck 7. The end of the pressure column 19 extends into the opening and closing groove 20 through the pressure column limiting arc hole 21. An opening and closing pressure frame 18 is rotatably installed in the opening and closing groove 20. The opening and closing pressure frame 18 is a lever structure. After one end is pressed, the other end swings to press the pressure column 19, so that the rope chuck 7 rotates, reducing the rope clamping force and realizing descent. The short handle 1 is provided with a cam limiting hole 16. An opening and closing actuating cam 15 is installed in the cam limiting hole 16. The center shaft of the opening and closing actuating cam 15 is rotatably installed in the opening and closing groove 20. The side of the opening and closing actuating cam 15 presses against one end of the opening and closing pressure frame 18. When the short handle 1 is rotated, the opening and closing actuating cam 15 rotates to press against one end of the opening and closing pressure frame 18, so that the other end presses against the pressure column 19.

[0025] Reference Figure 3 The short handle 1 has a locking handle movable groove on the side near the cavity shell 2. The locking handle movable groove is equipped with an opening and closing locking handle 4 through the locking handle torsion spring shaft. The opening and closing locking handle 4 can swing within the locking handle movable groove to a certain extent. The outer side of the cavity shell 2 is provided with a one-way slot 14. One end of the opening and closing locking handle 4 is locked into the one-way slot 14. When one end of the opening and closing locking handle 4 is locked into the one-way slot 14, the short handle 1 is locked and cannot be rotated. When one end of the opening and closing locking handle 4 is rotated out of the one-way slot 14, the short handle 1 is unlocked, thereby enabling the rope pulley 7 to rotate and descend. The opening and closing locking handle 4 can effectively prevent accidental contact.

[0026] like Figure 1 - Figure 6 As shown, embodiments of this utility model also disclose the following more optimized specific structures:

[0027] Specific reference Figure 5 , Figure 6 The outer side of the rotating cover 3 is provided with a cover locking lever 8. The cover locking lever 8 is provided with a lever torsion spring shaft hole 23. A lever torsion spring shaft (not shown in the figure) is provided in the lever torsion spring shaft hole 23. The cover locking lever 8 is installed on the rotating cover 3 through the lever torsion spring shaft. The rotating cover 3 is provided with a cover side strip hole groove 24. A lever locking block 10 is provided in the cover side strip hole groove 24. The lever locking block 10 is connected to the cover locking lever 8. An inner side groove 22 is provided on the inner wall of the cover side strip hole groove 24 on one side of the lever locking block 10. An inner chuck 25 is provided at one end of the wheel column 13. The inner chuck 25 is located in the cover side strip hole groove 24. The lever locking block 10 enters the inner side groove 22 under the action of the cover locking lever 8. The cover side strip hole groove 24 is opened. The lever locking block 10 no longer locks the inner chuck 25. The rotating cover 3 can be rotated and opened.

[0028] Continue to refer to Figure 2 The rope wheel groove is provided with a limiting groove stop 11 to facilitate the limiting of the rope clamp wheel 7. The edge of the rope clamp wheel 7 is provided with an anti-reverse protrusion 6. The rope can only be wound counterclockwise onto the rope clamp wheel 7. When wound clockwise, it is blocked by the anti-reverse protrusion 6 and cannot be inserted, thus preventing the rope from being reversed.

[0029] Continue to refer to Figure 1 The cavity shell 2 has a rope-side opening 12 on its side, which is connected to the rope wheel groove to facilitate the extension of the rope to the outside.

[0030] The short handle 1 has a folding groove on its outer side, and an extended folding handle 5 is rotatably installed in the folding groove to facilitate the extension of the short handle 1.

[0031] A cam cover 9 is installed on the cam limiting hole 16, and an opening and closing groove half-limiting cover 17 is provided on the opening and closing groove 20. The opening and closing groove half-limiting cover 17 is used to shield the pressure column 19.

[0032] like Figure 1 - Figure 6 The short-handle, openable descender shown is mainly used for descending from heights via rope. It can also be used as an escape device. The method of use is as follows:

[0033] Move the cover locking lever 8 to release the limiting position of the rotating cover 3, rotate the rotating cover 3 to expose the rope wheel groove, and then insert the rope into the half-side edge of the rope wheel 7. The rope can be led out from the rope side opening 12 on both sides to reset the rotating cover 3 and the cover locking lever 8.

[0034] Then press the lock handle 4 to release the lock of the short handle 1. Rotate the short handle 1 to descend along the rope. The handle can be extended by folding the extension plate 5 on the short handle 1. After folding, it does not take up extra space and is easy to store. The cover and the short handle are equipped with locking parts, which, together with the internal anti-tipping mechanism, make it safer.

[0035] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A short-handle opening and closing type descender, characterized in that: The device includes a short handle (1), a cavity shell (2), and a rotating cover (3). The rotating cover (3) is rotatably mounted on the cavity shell (2). The cavity shell (2) has a rope wheel groove on its inner side. A wheel post (13) is rotatably mounted in the rope wheel groove. A rope chuck (7) is fixedly mounted on the wheel post (13). The cavity shell (2) has an opening and closing groove (20) on its outer side. A pressure column limiting arc hole (21) is provided in the opening and closing groove (20). A pressure column (19) is fixedly mounted on the rope chuck (7). The end of the pressure column (19) extends into the opening and closing groove (20) through the pressure column limiting arc hole (21). An opening and closing mechanism is rotatably mounted in the opening and closing groove (20). The pressure frame (18) has a cam limiting hole (16) on the short handle (1). An opening and closing toggle cam (15) is installed in the cam limiting hole (16). The center shaft of the opening and closing toggle cam (15) is rotatably installed in the opening and closing groove (20). The side of the opening and closing toggle cam (15) is pressed against one end of the opening and closing pressure frame (18). The short handle (1) has a lock handle movable groove on the side near the cavity shell (2). An opening and closing lock handle (4) is installed in the lock handle movable groove through the lock handle torsion spring shaft. A one-way slot (14) is provided on the outer side of the cavity shell (2). One end of the opening and closing lock handle (4) is locked into the one-way slot (14).

2. The short-handle opening and closing type descender according to claim 1, characterized in that: The outer side of the rotating cover (3) is provided with a cover locking lever (8), the cover locking lever (8) is provided with a lever torsion spring shaft hole (23), the lever torsion spring shaft hole (23) is provided with a lever torsion spring shaft, the cover locking lever (8) is installed on the rotating cover (3) through the lever torsion spring shaft, the rotating cover (3) is provided with a cover side strip hole groove (24), the cover side strip hole groove (24) is provided with a lever locking block (10), the lever locking block (10) is connected to the cover locking lever (8), the inner wall of the cover side strip hole groove (24) on one side of the lever locking block (10) is provided with an inner side groove (22), one end of the wheel column (13) is provided with an inner chuck (25), the inner chuck (25) is located in the cover side strip hole groove (24).

3. A short-handle opening and closing type descender according to claim 1, characterized in that: The rope wheel groove is provided with a limiting groove stop (11), and the edge of the rope wheel (7) is provided with an anti-tipping protrusion (6).

4. A short-handle opening and closing type descender according to claim 3, characterized in that: The cavity shell (2) is provided with a rope-side opening (12) on the side.

5. A short-handle opening and closing type descender according to claim 1, characterized in that: The short handle (1) has a folding groove on its outer side, and an extended folding handle (5) is rotatably installed in the folding groove.

6. A short-handle opening and closing type descender according to claim 1, characterized in that: A cam cover (9) is installed on the cam limiting hole (16), and a half-limiting cover (17) is provided on the opening and closing groove (20).

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