Descending protector

Abstract

The utility model provides a descending protector which comprises a fixing plate, a guide baffle, an eccentric brake wheel and a brake friction block, and the guide baffle and the brake friction block are fixedly arranged on the fixing plate. The eccentric brake wheel is rotationally connected to the fixing plate, and gaps are formed between the eccentric brake wheel and the guide plate and between the eccentric brake wheel and the brake friction block and used as a channel for a rope to pass through. The eccentric brake wheel is used for rotating relative to the brake friction block to adjust the distance between the eccentric brake wheel and the brake friction block so as to adjust the friction force borne by the rope. The eccentric brake wheel can rotate relative to the brake friction block to adjust the distance between the eccentric brake wheel and the brake friction block, so that the friction force borne by the rope is adjusted, the eccentric brake wheel is pushed to the brake friction block under the action of gravity in the descending process of the rope, the friction force borne by the rope is increased, and the rope is prevented from falling off. Therefore, the descending speed of the descending protector is reduced or the descending protector stops descending.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rope brake device, concretely relates to a descending protector. BACKGROUND

[0002] The current booming society, oil, electric power, shipbuilding and other special industries are thriving, in the high-rise building, special industry infrastructure, maintenance and repair, emergency fire fighting, high-altitude rescue operations, military and tactical operations, the demand of the operating personnel for safe movement, descent along the rope and release of heavy objects, tools and even suspended patients through the rope is increasing, and the descending protector used therein is indispensable.

[0003] The existing products are mostly made of light alloy, the positions with more friction of the rope are not strengthened, the service life of the products is rapidly reduced, and the light alloy helps less in assisting the control of the speed of the rope. Most of the existing products need to be disconnected from the connecting lock catch to put in or take out the rope, and are easy to lose and fall. The carrying capacity of the existing products is low, and the demand of the user for carrying heavy tools or suspending heavy objects cannot be met, and the application range is narrow.

[0004] Most of the common descending protectors do not have an automatic stopping function, and cannot automatically stop the movement of the user when the user moves and descends along the rope and encounters an out-of-control situation, which is easy to cause accidental falling danger.

[0005] Although some products have an automatic stopping function, the timing and principle of triggering the automatic stopping function are relatively vague, and the automatic stopping function cannot be triggered in time under fixed, consistent and standard conditions, and the safety of the user cannot be guaranteed. INVENTION CONTENTS

[0006] The utility model provides a kind of descending protector to solve the technical problem that the rope braking capacity of existing product is weak.

[0007] To achieve the above object, the technical solution of the utility model is as follows:

[0008] According to the first aspect of the utility model, a descending protector is provided, which comprises a fixed plate, a guide baffle, an eccentric brake wheel and a brake friction block. The guide baffle and the brake friction block are fixedly arranged on the fixed plate. The eccentric brake wheel is rotatably connected to the fixed plate. A gap is provided between the eccentric brake wheel and the guide plate and the brake friction block, which serves as a passage for the rope to pass through. The eccentric brake wheel is used to rotate relative to the brake friction block to adjust the gap between the eccentric brake wheel and the brake friction block, so as to adjust the friction force received by the rope.

[0009] Further, the guide baffle is arranged in a C-shaped structure, and the eccentric brake wheel is arranged inside the C-shaped structure, so that the eccentric brake wheel and the guide baffle and the brake friction block form a rope passing channel with two openings.

[0010] Further, the guide baffle is arranged along the side and bottom of the fixed plate, the brake friction block is arranged along the top of the fixed plate, the opening between the guide baffle and the eccentric brake wheel serves as a rope inlet, and the opening between the brake friction block and the eccentric brake wheel serves as a rope outlet.

[0011] Further, the eccentric brake wheel is provided with an eccentric protruding portion on one side close to the guide baffle.

[0012] Further, the first end of the pin is connected to the eccentric brake wheel, the second end of the pin passes through the fixed plate and is further connected with a handle, and the handle is used for driving the eccentric brake wheel to rotate.

[0013] Further, the fixed plate is provided with a first bearing hole.

[0014] Further, the side plate is rotatably connected to the fixed plate through the pin.

[0015] Further, the side plate is provided with a second bearing hole corresponding to the first bearing hole.

[0016] Further, the second bearing hole is an open structure.

[0017] Further, the side plate is provided with a closing baffle capable of rotating relative to the second bearing hole, and the closing baffle is used for closing the opening of the second bearing hole.

[0018] Further, the side plate is further provided with a rope guide friction block, and the rope guide friction block is used for assisting in braking the rope.

[0019] The utility model discloses the beneficial effect is:

[0020] The utility model discloses the beneficial effect is: BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a structural schematic diagram of a descent protector;

[0022] Fig. 2 is a structural schematic diagram of a descent protector;

[0023] Fig. 3 is a structural schematic diagram of a descent protector;

[0024] Fig. 4 is a schematic diagram of a descent protector in use.

[0025] In the figure: 1-handle, 2-fixed plate, 3-first bearing hole, 4-guide baffle, 5-guide baffle fixing screw, 6- eccentric brake wheel, 7-handle connecting pin, 8-brake friction block, 9-brake friction block pin, 10-side plate, 11-baffle pin, 12-baffle, 13-second bearing hole, 14-side plate connecting pin, 15-rope guide friction block, 16-guide friction block pin. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0029] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should be understood broadly, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0030] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but it must be based on that ordinary skilled in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0031] The utility model discloses a first aspect of embodiment, provide a kind of descent protector, including fixed plate 2, guide baffle 4, eccentric brake wheel 6 and brake friction block 8, the guide baffle 4 and brake friction block 8 are fixedly arranged on fixed plate 2;The eccentric brake wheel 6 is rotatably connected on fixed plate 2, and the eccentric brake wheel 6 is equipped with gap between guide plate and brake friction block 8, for the passage of rope passing;The eccentric brake wheel 6 is used for rotating relative to brake friction block 8 to adjust the interval between eccentric brake wheel 6 and brake friction block 8, to adjust the friction force that rope is subjected.

[0032] Referring to Figs. 1 to 4 , guide baffle 4 is fixed in the inner side of fixed plate 2 by guide baffle fixing screw 5, and rope guide baffle 4 is arranged in arc shape, brake friction block 8 is arranged on the top edge of fixed plate 2 by brake friction block pin 9, eccentric brake wheel 6 is located in the inner side of guide baffle 4, and the interval between eccentric brake wheel 6 and guide baffle 4 is used to make rope pass and guide rope. In use, the descent protector is connected to the user by connecting lock catch, the first end of the rope is fixedly connected to the anchor point, the second end of the rope passes through the gap passage between eccentric brake wheel 6 and guide baffle 4, and comes out from the outlet at brake friction block 8, so that the descent protector can be lowered relative to the rope, and in the process of descending, the interval between eccentric brake wheel 6 and brake friction block 8 is adjusted by rotating eccentric brake wheel 6 to adjust the friction force that rope is subjected, to control the descending speed of the descent protector, or stop the descent of the descent protector.

[0033] The utility model discloses a spacing is set up between the guide plate and eccentric brake wheel 6 for the passage of the rope, and the brake friction block 8 is arranged at the outlet end of the rope for generating friction force to the rope to reduce the passing speed of the rope, in addition, the eccentric brake wheel 6 is rotatably connected to the fixed plate 2, and the eccentric brake wheel 6 can rotate relative to the brake friction block 8 to adjust the spacing between the eccentric brake wheel 6 and the brake friction block 8, thereby adjusting the friction force received by the rope, when the load borne by the descent protector is larger, the rope is pushed to the brake friction block 8 direction under the action of gravity and friction force in the descending process, so that the friction force received by the rope reaches the maximum value, until the rope cannot pass through, realizing the effect that the descent protector automatically stops moving.

[0034] In a preferred embodiment, the guide baffle 4 is arranged in a C-shaped structure, and the eccentric brake wheel 6 is arranged inside the C-shaped structure, so that the eccentric brake wheel 6 and the guide baffle 4 and the brake friction block 8 form a rope passing channel with two openings. The two-opening rope passing channel is used for conveniently putting the rope into the channel and also conveniently taking out the rope. The brake friction block 8 is arranged on the top of the fixed plate 2, so that the outlet of the rope is arranged on the top of the descent protector, so that the rope comes out from the top outlet, and when the descent protector is descending under load, the rope drives the eccentric brake wheel 6 to move to the brake friction block 8 direction under the action of gravity and friction force, so as to increase the friction force and reduce the descending speed.

[0035] In a preferred embodiment, the guide baffle 4 is arranged along the side and bottom of the fixed plate 2, and the brake friction block 8 is arranged along the top of the fixed plate 2, the opening between the guide baffle 4 and the eccentric brake wheel 6 serves as a rope inlet, and the opening between the brake friction block 8 and the eccentric brake wheel 6 serves as a rope outlet. The brake friction block 8 and the guide baffle 4 can be connected to each other to better guide the rope. The rope outlet is arranged on the top of the fixed plate in the application, so that the descent protector is more easily driven to move to the brake friction block 8 direction under the action of gravity during the descending process.

[0036] In a preferred embodiment, the eccentric brake wheel 6 is provided with an eccentric protruding portion on one side close to the guide baffle 4. The eccentric protruding portion is used for limiting the rope. Preferably, a groove is arranged on the eccentric protruding portion, and the groove can further limit the rope in the groove to avoid the rope from separating from the eccentric brake wheel 6.

[0037] In a preferred embodiment, a pin is further included, the first end of the pin is connected to the eccentric brake wheel 6, the second end of the pin passes through the fixed plate 2 and is further connected to a handle 1, the handle 1 is used to drive the eccentric brake wheel 6 to rotate. The handle 1 is connected to the back of the fixed plate 2 through a handle connecting pin 7, the handle connecting pin 7, the eccentric brake wheel 6 and the handle 1 are integrally connected, and the eccentric brake wheel 6 can be rotated relative to the fixed plate 2 by rotating the handle 1, so as to adjust the friction of the rope.

[0038] In a preferred embodiment, the fixed plate 2 is provided with a first load-bearing hole 3. The first load-bearing hole 3 is arranged at the bottom of the fixed plate 2, and the first load-bearing hole 3 is used to connect a lock buckle, and the lock buckle is used to connect a protection device on the user. When the user descends through the rope, the descending speed or the descending can be controlled by adjusting the friction of the rope.

[0039] In a preferred embodiment, a side plate 10 is further included, the side plate 10 is rotatably connected to the fixed plate 2 through a pin. The side plate 10 is connected to the front side of the fixed plate 2 through a side plate connecting pin 14, and the side plate 10 can be overlapped or opened at a certain angle relative to the fixed plate 2, and is used to limit the rope after the rope is put into the rope channel, so as to avoid the rope from being separated from the rope channel.

[0040] In a preferred embodiment, the side plate 10 is provided with a second load-bearing hole 13 corresponding to the first load-bearing hole 3. The first load-bearing hole 3 and the second load-bearing hole 13 are both used to connect a lock buckle, and the lock buckle can overlap the side plate 10 on the fixed plate 2, so as to avoid the side plate 10 from being misaligned from the fixed plate 2, thereby causing the rope to be separated from the rope channel.

[0041] In a preferred embodiment, the second load-bearing hole 13 is an open structure. The open structure of the second load-bearing hole 13 facilitates the rotation of the side plate 10 from the overlapping state to the misaligned state with the fixed plate 2. After the descending protector stops descending, the rope can be taken out from the descending protector without separating the lock buckle from the descending protector.

[0042] In a preferred embodiment, the side plate 10 is provided with a closing baffle 12 which can rotate relative to the second load-bearing hole 13, and the closing baffle 12 is used to close the opening of the second load-bearing hole 13. The closing baffle 12 is connected to the side plate 10 through a baffle pin 11, so that the baffle can rotate relative to the side plate 10. In use, after the lock buckle passes through the second load-bearing hole 13, the opening of the second load-bearing hole 13 is closed by the baffle, so as to avoid the side plate 10 from being separated from the lock buckle.

[0043] In a preferred embodiment, the side plate 10 is further provided with a rope guide friction block 15 for assisting in braking the rope. The rope guide friction block 15 is fixedly arranged on the top of the side plate 10 by a guide friction block pin 16, and is located at the rope outlet. During movement of the rope, the rope guide friction block 15 cooperates with the brake friction block 8 to generate friction force on the rope.

[0044] The working process of the descent protector is as follows: the handle 1 located outside the fixed plate 2 is rotated to drive the eccentric brake wheel 6 to rotate, so that the eccentric protruding part of the eccentric brake wheel 6 moves away from the brake friction block 8 also located inside the fixed plate 2.

[0045] The rope is placed in the "C" shaped space formed between the guide baffle 4 inside the fixed plate 2 and the brake friction block 8 and the eccentric brake wheel 6. The anchor point suspension end of the rope enters the "C" shaped space from below the eccentric protruding side of the eccentric brake wheel 6, and exits the "C" shaped space from above the eccentric protruding side of the eccentric brake wheel 6 after passing through the "C" shaped space. The rope is placed outside the brake friction block 8 after passing through the "C" shaped space inside the automatic stop descent protector. The side plate 10 is horizontally swung to be parallel and overlapped with the fixed plate 2, so that the rope is enclosed in the "C" shaped space inside the automatic stop descent protector.

[0046] After the fixed plate 2 is parallel and overlapped with the side plate 10, an overlapping hole formed by the first load bearing hole 3 and the second load bearing hole 13 can jointly hang a connecting lock buckle for connection and bearing of weight tension. The descent protector can be connected to the user in a forward direction, or can be hung on a fixed anchor point in a reverse direction.

[0047] When the connecting lock buckle is subjected to tension and bears weight, the automatic stop descent protector will be moved relative to the anchor point suspension end of the rope, the rope of the anchor point suspension end will push the eccentric protruding part of the eccentric brake wheel 6 to make the eccentric brake wheel 6 rotate, and the eccentric protruding part of the eccentric brake wheel 6 will move close to the brake friction block 8 while the eccentric brake wheel 6 rotates. The reduction of the distance between the eccentric protruding part of the eccentric brake wheel 6 and the friction brake block will generate extrusion and friction on the rope, so as to slow down the speed of the rope passing through. When the load borne by the descent protector exceeds 45 kg, the force of the rope pushing the eccentric protruding part of the eccentric brake wheel 6 and the friction brake block to extrude and friction the rope passing through the descent protector reaches the maximum value, and at this time the rope passing through the descent protector will be automatically stopped.

[0048] By rotating the handle 1 reversely to drive the eccentric brake wheel 6 to rotate reversely, the distance between the eccentric convex part of the eccentric brake wheel 6 and the friction brake block is increased, the extrusion and friction of the eccentric convex part of the eccentric brake wheel 6 and the friction brake block to the rope are reduced, and the rope can pass through the descending protector. By rotating the handle 1 to drive the eccentric brake wheel 6 to rotate, the distance between the eccentric convex part of the eccentric brake wheel 6 and the friction brake block is changed, the required speed of the rope passing through the descending protector can be obtained, and whether the rope stops passing through the descending protector can be controlled.

[0049] After the rope leaves the "C" shaped space inside the descending protector, the rope is placed outside the descending protector above the brake friction block 8, and cooperates with the rope guide friction block 15 outside the side plate 10 to obtain additional friction force to assist in controlling the speed of the rope passing through the automatic descending protector. By pressing the baffle at the bottom end of the side plate 10 to swing laterally, the closed second bearing hole 13 is changed from the closed state to the open state, and the side plate 10 is pushed transversely to rotate from the overlapping state to the staggered state with the fixed plate 2, so that the rope can be taken out from the descending protector without disconnecting the connecting lock.

[0050] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A drop protector, characterized in that, The device comprises a fixed plate (2), a guide baffle (4), an eccentric brake wheel (6) and a brake friction block (8), the guide baffle (4) and the brake friction block (8) are arranged on the fixed plate (2), the eccentric brake wheel (6) is rotatably connected to the fixed plate (2), a gap is arranged between the eccentric brake wheel (6) and the guide baffle and the brake friction block (8) for serving as a channel for the rope to pass through, the eccentric brake wheel (6) is used to rotate relative to the brake friction block (8) to adjust the distance between the eccentric brake wheel (6) and the brake friction block (8) so as to adjust the friction force received by the rope.

2. The drop protector of claim 1, wherein, The guide baffle (4) is arranged in a C-shaped structure, the eccentric brake wheel (6) is arranged inside the C-shaped structure, and the eccentric brake wheel (6) and the guide baffle (4) and the brake friction block (8) form a rope passing channel with two openings.

3. The drop protector of claim 2, wherein, The guide baffle (4) is arranged along the side and bottom of the fixed plate (2), the brake friction block (8) is arranged along the top of the fixed plate (2), the opening between the guide baffle (4) and the eccentric brake wheel (6) serves as a rope inlet, and the opening between the brake friction block (8) and the eccentric brake wheel (6) serves as a rope outlet.

4. The drop protector of claim 1, wherein, The eccentric brake wheel (6) is provided with an eccentric protruding portion on the side close to the guide baffle (4).

5. The drop protector of claim 1, wherein, The device further comprises a pin, a first end of the pin is connected to the eccentric brake wheel (6), a second end of the pin passes through the fixed plate (2) and is further connected with a handle (1), and the handle (1) is used to drive the eccentric brake wheel (6) to rotate.

6. The drop protector of claim 1, wherein, The fixed plate (2) is provided with a first bearing hole (3).

7. The drop protector of claim 6, wherein, The device further comprises a side plate (10), the side plate (10) is rotatably connected to the fixed plate (2) through the pin; The side plate (10) is provided with a second bearing hole (13) corresponding to the first bearing hole (3).

8. The drop protector of claim 7, wherein, The second bearing hole (13) is an open structure.

9. The drop protector of claim 8, wherein, The side plate (10) is provided with a closing baffle (12) capable of rotating relative to the second bearing hole (13), and the closing baffle (12) is used to close the opening of the second bearing hole (13).

10. The drop protector of claim 7, wherein, The side plate (10) is further provided with a rope guide friction block (15), and the rope guide friction block (15) is used to assist in braking the rope.

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