Descending protector

Abstract

The utility model relates to a descending protector which comprises a first shell, a second shell, a driving handle and an eccentric rope control block. An arc-shaped driving groove is formed in the eccentric rope control block, an arc-shaped driving block capable of axially moving is arranged in the arc-shaped driving groove, a plurality of pressure springs are arranged between the arc-shaped driving block and the eccentric rope control block, and an unlocking arc surface and a driving part are arranged on the arc-shaped driving block; the first shell is provided with an unlocking head abutting against the unlocking cambered surface, and the driving handle is provided with a driving head in driving connection with the driving part. In the using process, through the mode that the arc-shaped driving block axially moves and keeps driving with the driving head of the driving handle and the mode that the driving head of the driving handle and the driving head of the driving handle are removed, the eccentric rope control block is more reliable in performance in the working process, and meanwhile assembling is convenient in the production process.

Description

Technical Field

[0001] The utility model belongs to the field of aerial work, rock climbing and fire-fighting slow-descent equipment and supplies, and specifically relates to a descent protector. Background Art

[0002] One of the most commonly used auxiliary devices in the field of aerial work, rock climbing and fire-fighting descent equipment is a descent protector. There are many types of descent protectors in the prior art. For example, the patent application number 202221504762.1, and the patent name of a descent protector shows one of the descent protectors. In this patent, the driving handle drives the eccentric rope control block to move through the lever principle, and then drives the eccentric rope control block to release the rope for rappelling. A reset torsion spring is set between the driving block and the eccentric rope control block for control and reset, etc. This method is not convenient for assembly during production, and the driving block adopts a reset torsion spring method, which has poor reliability. Utility Model Content

[0003] The utility model provides a drop protector to solve the technical problems existing in the technical field.

[0004] The utility model provides a descent protector to solve the above-mentioned technical problems, including a first shell, a second shell, a driving handle and an eccentric rope control block, the driving handle and the eccentric rope control block are rotatably arranged on the first shell through a central rotating shaft; the eccentric rope control block is provided with an arc-shaped driving groove, an axially movable arc-shaped driving block is provided in the arc-shaped driving groove, a number of compression springs are provided between the arc-shaped driving block and the eccentric rope control block, an unlocking arc surface and a driving part are provided on the arc-shaped driving block, the first shell is provided with an unlocking head abutting the unlocking arc surface, and the driving handle is provided with a driving head connected to the driving part.

[0005] Furthermore, the unlocking arc surface is positioned higher near the driving portion than near the unlocking head; when the driving handle is rotated, the arc-shaped driving block and the eccentric rope control block can be driven to rotate synchronously, so that the unlocking head can press the unlocking arc surface to unlock and separate the driving head and the eccentric rope control block; when the driving handle is rotated in the opposite direction, the driving head and the driving portion can maintain a driving relationship again.

[0006] Furthermore, three compression springs are provided, which are respectively located in the middle and on both sides of the arc-shaped driving block.

[0007] Furthermore, the driving handle is a two-section folding handle.

[0008] Furthermore, a rope fixing buckle is provided on the second shell.

[0009] Furthermore, a load-removing column is fixedly provided at the lower end of the eccentric rope control block. The load-removing column is L-shaped, one end of the L-shaped load-removing column is fixedly connected to the central rotating shaft, and the other end of the L-shaped load-removing column is fixedly connected to the first shell.

[0010] The utility model relates to a fall protector, comprising a first housing, a second housing, a drive handle, and an eccentric rope control block; the eccentric rope control block is provided with an arcuate drive groove, an axially movable arcuate drive block is provided in the arcuate drive groove, a plurality of compression springs are provided between the arcuate drive block and the eccentric rope control block, the arcuate drive block is provided with an unlocking arc surface and a drive portion, the first housing is provided with an unlocking head that abuts the unlocking arc surface, and the drive handle is provided with a drive head that is drivably connected to the drive portion. During use, the arcuate drive block axially moves and maintains drive and release with the drive head of the drive handle, making the eccentric rope control block more reliable during operation and more convenient to assemble during production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 and Figure 2 This is a schematic diagram of the three-dimensional structure of the fall protector of the present utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the handle and shell of the fall protector of the present invention in the open state;

[0013] Figure 4 This is a schematic diagram of the explosion structure of the fall protector of the utility model in the open state of the shell

[0014] Figure 5 This is a schematic structural diagram of an eccentric rope control block of a descent protector of the present invention;

[0015] Figure 6 This is a schematic structural diagram of the explosion state of the eccentric rope control block of the descent protector of the utility model. DETAILED DESCRIPTION

[0016] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". The subsequent description of the specification is a preferred embodiment of the present invention, but the description is for the purpose of illustrating the general principles of the present invention, and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined as defined by the attached claims.

[0017] The following is a further detailed description of the present invention in conjunction with the accompanying drawings. The directional terms such as "upper", "lower", "left" and "right" described in the specification are only for better understanding and description, but are not intended to be specific limitations of the present invention.

[0018] Example

[0019] like Figure 1-6 As shown, a fall protector comprises a first shell 1, a second shell 2, a driving handle 3 and an eccentric rope control block 4, the first shell 1 and the second shell 2 are pivotally connected through a hole shaft 2a, the second shell 2 can be rotated to open or close the first shell 1, and a rope channel 1a is formed between the first shell 1 and the second shell 2, the driving handle 3 and the eccentric rope control block 4 are rotatably arranged on the first shell 1 through a central rotating shaft 5, the central rotating shaft 5 is fixed by a screw 5a, and the central rotating shaft 5 is further provided with a spring button 6 connected to or disconnected from the second shell 2, the spring button 6 is provided with a reset spring 6a, and the spring button 6 can be smoothly reset when pressed; the eccentric An arc-shaped driving groove 4a is provided on the core rope control block 4, and an axially movable arc-shaped driving block 4b is provided in the arc-shaped driving groove 4a. A number of compression springs 4c are provided between the arc-shaped driving block 4b and the eccentric rope control block 4. An unlocking arc surface 4b1 and a driving part 4b2 are provided on the arc-shaped driving block 4b. An unlocking head 1c abutting against the unlocking arc surface 4b1 is provided on the first shell 1. A driving head 3a driven and connected to the driving part 4b2 is provided on the driving handle 3. The driving head 3a passes through the arc-shaped groove 1b on the first shell 1 and is driven and connected to the driving part 4b2. The driving handle 3 can control the eccentric rope control block 4 to slowly release the rope in the rope channel 1a to achieve slow descent.

[0020] The unlocking arc surface 4b1 is positioned higher than the position of the unlocking head 1c on the side close to the driving part 4b2 when the driving handle 3 is rotated. The arc-shaped driving block 4b and the eccentric rope control block 4 can be driven to rotate synchronously, so that the unlocking head 1c can press the unlocking arc surface 4b1 to unlock and separate the driving head 3a from the eccentric rope control block 4. When the driving handle 3 is rotated in the opposite direction, the driving head 3a and the driving part 4b2 can maintain a driving relationship again.

[0021] Preferably, Figure 6 As shown, there are three compression springs 4c, which are respectively located in the middle and on both sides of the arc-shaped driving block 4b.

[0022] Preferably, the driving handle 3 is a two-stage folding handle, and a return torsion spring is provided at the folding position of the folding handle, so that the folding handle can be automatically folded when not in use. The automatic folding of the driving handle 3 can effectively prevent the operator from touching the handle when not in use and causing misoperation.

[0023] More preferably, a rope fixing buckle 2b is provided on the second shell 2. When staying in the air, the rope can be wrapped around the fixing buckle 2b to improve safety.

[0024] Working process and working principle:

[0025] like Figure 1 and Figure 3 As shown, when in use, press the spring button 6 to unlock the second shell 2 and the central rotating shaft 5. At this time, rotate the second shell 2 to open the rope channel 1a, and pass the rope around the eccentric rope control block 4 and install it into the rope channel 1a. The hole axis 2a where the first shell 1 and the second shell 2 are pivoted is connected to the safety wear protective gear on the operator's body through a connecting hook. The load-bearing end of the rope is fixedly connected to a rock bolt or tree at a high place. The operator controls the driving handle 3 with one hand and holds the free end of the rope with the other hand to rappel. During the rappel process, the operator's body weight acts on the rope through the first shell 1 and the second shell 2 and the eccentric rope control block 4. At this time, the load-bearing end of the rope gives the eccentric rope control block 4 a reaction force and rotates. As a result, the eccentric rope control block 4 forms a locking force on the free end of the rope. When the driving handle 3 is not rotated, the operator is in a stationary state. As shown Figure 5 As shown, the driving handle 3 can be rotated at this time to make the driving head 3a move in an arc along the central rotation axis 5 in the direction A. The driving head 3a drives the driving block 4b and the eccentric rope control block 4 to rotate synchronously in the direction A, thereby reducing the locking force applied by the eccentric rope control block 4 to the free end of the rope. Therefore, by continuously rotating and releasing the driving handle 3, the operator releases the rope in the rope groove 4d, thereby achieving the purpose of slow descent.

[0026] When the operator panics at a high speed during the descent operation of the driving handle 3, causing the driving handle 3 to rotate too much, the unlocking head 1c provided on the first shell 1 will be compressed and move along the unlocking arc surface 4b1. At this time, the unlocking head 1c will drive the arc driving block 4b to overcome the compression force of the compression spring 4c and move axially in the arc driving groove 4a, so that the driving head 3a and the driving part 4b2 of the arc driving block 4b are disengaged from the driving state, and then the eccentric rope control block 4 and the driving handle 3 are in a disengaged driving state and lock the free end of the rope. At this time, the operator loses control of the driving of the eccentric rope control block 4, stops the rappelling operation and stays in the air, thereby also achieving the purpose of protecting the operator.

[0027] When it is necessary to rappel again, the operator rotates the driving handle 3 in the opposite direction to direction B, so that the driving head 3a returns to the driving part 4b2 position. Under the action of the compression spring 4c, the driving head 3a of the arc driving block 4b is connected with the arc driving block 4b and the eccentric rope control block 4 again, and returns to the position as shown in FIG. Figure 5 In the driving state shown, the driving head 3a and the driving block 4b can again be rotated to drive the eccentric rope control block 4 to achieve the purpose of slowly descending. Thus, by providing the arcuate driving groove 4a on the eccentric rope control block 4 and arranging the axially movable arcuate driving block 4b within the arcuate driving groove 4a, the arcuate driving block 4b can axially move and maintain and release the driving head 3a of the driving handle 3, making the eccentric rope control block 4 more reliable during operation and more convenient to assemble during production.

[0028] More preferably, a load-releasing column 7 is fixedly disposed at the lower end of the eccentric rope control block 4. The load-releasing column 7 is L-shaped, with one end of the L-shaped load-releasing column 7 fixedly connected to the central rotating shaft 5 and the other end of the L-shaped load-releasing column 7 fixedly connected to the first housing 1. During use, the rope passes around the load-releasing column 7 before contacting the eccentric rope control block 4. This reduces the frictional force exerted by the rope on the eccentric rope control block 4 during rappelling, making it easier for the driving handle 3 to drive the eccentric rope control block 4.

[0029] The utility model relates to a fall protector, comprising a first housing, a second housing, a drive handle, and an eccentric rope control block; the eccentric rope control block is provided with an arcuate drive groove, an axially movable arcuate drive block is provided in the arcuate drive groove, a plurality of compression springs are provided between the arcuate drive block and the eccentric rope control block, the arcuate drive block is provided with an unlocking arc surface and a drive portion, the first housing is provided with an unlocking head that abuts the unlocking arc surface, and the drive handle is provided with a drive head that is drivably connected to the drive portion. During use, the arcuate drive block axially moves and maintains drive and release with the drive head of the drive handle, making the eccentric rope control block more reliable during operation and more convenient to assemble during production.

[0030] The foregoing description shows and describes preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge of the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A fall protector, comprising a first housing (1), a second housing (2), a driving handle (3), and an eccentric rope control block (4), wherein the driving handle (3) and the eccentric rope control block (4) are rotatably arranged on the first housing (1) via a central rotating shaft (5); characterized in that: The eccentric rope control block (4) is provided with an arc-shaped driving groove (4a), an axially movable arc-shaped driving block (4b) is provided in the arc-shaped driving groove (4a), a plurality of compression springs (4c) are provided between the arc-shaped driving block (4b) and the eccentric rope control block (4), an unlocking arc surface (4b1) and a driving portion (4b2) are provided on the arc-shaped driving block (4b), an unlocking head (1c) abutting against the unlocking arc surface (4b1) is provided on the first shell (1), and a driving head (3a) drivingly connected to the driving portion (4b2) is provided on the driving handle (3).

2. A fall protector according to claim 1, characterized in that: The unlocking arc surface (4b1) is positioned higher on the side close to the driving portion (4b2) than on the side close to the unlocking head (1c); when the driving handle (3) is rotated, the arc-shaped driving block (4b) and the eccentric rope control block (4) can be driven to rotate synchronously, so that the unlocking head (1c) can press the unlocking arc surface (4b1) to unlock and separate the driving head (3a) from the eccentric rope control block (4); and when the driving handle (3) is rotated in the reverse direction, the driving head (3a) and the driving portion (4b2) can be kept in a driving relationship again.

3. A fall protector according to claim 1 or 2, characterized in that: Three compression springs (4c) are provided, and are respectively located in the middle and on both sides of the arc-shaped driving block (4b).

4. A fall protector according to claim 1 or 2, characterized in that: The driving handle (3) is a two-section folding handle.

5. A fall protector according to claim 1 or 2, characterized in that: A rope fixing buckle (2b) is provided on the second shell (2).

6. A fall protector according to claim 3, characterized in that: A load-releasing column (7) is fixedly provided at the lower end of the eccentric rope control block (4). The load-releasing column (7) is L-shaped, one end of the L-shaped load-releasing column (7) is fixedly connected to the central rotating shaft (5), and the other end of the L-shaped load-releasing column (7) is fixedly connected to the first housing (1).

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