An automatic stopping descent protector with anti-panic function

Abstract

The present invention discloses an automatic stopping descent protector with an anti-panic function, comprising: a main body, one end of which is provided with a padlock part matched with a padlock, and the other end of which is provided with a friction surface; a rope clamping assembly, which is arranged in the main body, and the rope passes through the rope clamping assembly; a handle, which is rotatably installed on the outside of the rope clamping assembly, and a squeezing assembly is arranged inside the handle; wherein the handle rotation stroke includes the first section rotation range, the middle section rotation range and the last section rotation range in sequence; when the handle is located in the first section rotation range and the last section rotation range, the rope is squeezed to the friction surface by the rope clamping assembly to clamp and lock the rope; when the handle is rotated to the middle section rotation range, the squeezing assembly abuts against a contour surface of the main body to weaken the clamping force between the rope clamping assembly and the friction surface, and adjust the rope descent. The descent protector of the present invention can quickly lock the rope when the operator is frightened and grabs the handle randomly, so that the person stops descending and avoids danger; it has a design of rope installation without unlocking and the overall structure is compact.

Description

Technical Field

[0001] The invention relates to the technical field of descent protectors, and in particular to an automatic descent protector with an anti-panic function. Background Art

[0002] Traditional steel hoist hook drop protectors, figure eight ring drop protectors, porous drop protectors, etc. need to be knotted and then climb out the window to escape, wasting precious time for escape and self-rescue.

[0003] During the descent process, the traditional descent protector requires the operator to hold the free rope end with the hand to apply pressure to control the descent speed. This method not only makes the operator easily fatigued, but there is even the possibility of falling if the operation is improper. In addition, the device is large in size and can only be used with large-diameter ropes, making it inconvenient to carry. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides an automatic stopping descent protector with an anti-panic function.

[0005] The technical solution of the present invention is:

[0006] The present invention provides an automatic stopping descent protector with an anti-panic function, comprising:

[0007] A main body, one end of which is provided with a padlock portion for cooperating with a padlock, and the other end of which is provided with a friction surface;

[0008] A rope clamping assembly, disposed in the main body, through which the rope passes;

[0009] A handle is rotatably mounted on the outside of the rope clamping assembly, and a squeezing assembly is disposed inside the handle;

[0010] Among them, the rotation process of the handle from the initial position to the final position includes the first rotation range, the middle rotation range and the final rotation range in sequence; when the handle is in the first rotation range and the final rotation range, the rope is squeezed to the friction surface by the rope clamping assembly to clamp and lock the rope; when the handle is rotated to the middle rotation range, the squeezing assembly abuts against a contour surface of the main body to weaken the clamping force between the rope clamping assembly and the friction surface, thereby adjusting the rope to descend.

[0011] Furthermore, the rope clamping assembly comprises:

[0012] Central axis;

[0013] A cam base is fixedly connected to the main body via the central shaft; the handle is rotatably mounted on the cam base;

[0014] A cam, hinged to the cam base via the central rotating shaft, the cam being provided with a cam friction portion cooperating with the friction surface to clamp the rope;

[0015] A rotation spring, disposed between the central rotating shaft and the cam, capable of causing the cam to rotate around the central rotating shaft and return to its original position;

[0016] A handle rotating shaft is arranged between the handle and the cam base;

[0017] The main body is provided with a main body limiting contour surface which can cooperate with the extrusion assembly;

[0018] There is a gap between the cam friction part and the friction surface, and the rope runs through the gap; when the handle is rotated to the middle rotation range, the extrusion assembly abuts against the main body limit contour surface and gives a thrust to the cam base connected to the handle, and the thrust is greater than the rope friction between the cam friction part and the friction surface. When the cam rotates, the gap between the cam friction part and the friction surface increases with the rotation of the cam, and the adjustment rope descends;

[0019] When the handle is rotated to the final rotation range, the extrusion assembly and the main body limit contour surface are automatically separated, the rotary spring causes the cam to rotate and reset, the gap between the cam friction part and the friction surface becomes smaller as the cam resets, and the rope is clamped and locked by the cam friction part and the friction surface again.

[0020] Furthermore, the subject comprises:

[0021] The main body base has a friction component fixedly arranged at one end, the friction surface being a side of the friction component close to the cam, and a first hole for a padlock arranged at the other end;

[0022] A sliding cover, one end of which is provided with a second hole for a padlock, the second hole being rotatably connected to the first hole via a rotating shaft sleeve, and the other end of the sliding cover being clamped with the friction assembly;

[0023] The main body limiting contour surface is arranged on the main body base;

[0024] The middle part of the main body base is fixedly connected to the cam base through the central rotating shaft.

[0025] Further, the handle comprises a rotating connection part and a hand-held part integrated with the rotating connection part, the rotating connection part is rotatably connected to the cam base through the handle shaft, a handle spring is installed between the rotating connection part and the cam base, the handle shaft passes through the handle spring, and the handle can be reset by the handle spring; a first guide groove is opened inside the rotating connection part;

[0026] The extrusion assembly includes a wedge block and a compression spring; the wedge block is installed inside the rotating connection part, and one end of the wedge block is arranged in the first guide groove; the compression spring is installed in the first guide groove, one end of the compression spring abuts against the wedge block, and the other end abuts against the inner wall of the first guide groove;

[0027] Among them, the wedge block extends downward from the working part. When the handle is rotated to the middle rotation range, the side surface of the working part contacts the limiting outer contour of the main body base and squeezes the wedge block to generate an extrusion force. The extrusion force is transmitted to the handle, and the handle transmits it to the cam base. The rope friction between the cam and the grinding surface is reduced. The rope friction is less than the operator's own weight, and the operator descends.

[0028] Furthermore, the friction assembly includes a friction block, the friction surface is arranged near the cam side of the friction block, and the friction surface is a plane; a first mounting hole and a second mounting hole are opened on the top of the friction block, and the first mounting hole is fixedly connected to the main body base through a rivet; the second mounting hole is connected to an elastic plug assembly, and the elastic plug assembly includes a button;

[0029] Among them, after the button is inserted into the second mounting hole, the sliding cover is locked, and the sliding cover cannot rotate around the rotating shaft sleeve and is in a closed state; pressing the button to disengage the button from the second mounting hole, the sliding cover can rotate around the rotating shaft sleeve to an open state.

[0030] Furthermore, the elastic latch assembly includes, from top to bottom, the button, the button screw plug, the button spring and the screw plug installed in the second mounting hole.

[0031] Furthermore, the cam friction portion structure is a radially protruding arc structure.

[0032] Furthermore, a rope guide portion is provided on the outer surface of the sliding cover, and the rope guide portion is a protruding hook structure.

[0033] Furthermore, the number of the rope guide parts is two, which are respectively arranged on the left and right sides of the outer surface, and the hook directions of the hook structures are opposite.

[0034] Furthermore, the angle corresponding to the first rotation range is 0°<θ<150°, the angle corresponding to the last rotation range is 160°<θ<165°, and the middle rotation range is between the first rotation range and the last rotation range.

[0035] The beneficial effects achieved by the present invention are:

[0036] The present invention adopts the rope clamping assembly and the main body self-locking to realize the hands-free stopping function. Even if the operator releases the handle by mistake, the friction force of the rope on the cam and the elastic force of the cam's rotating spring make the cam automatically reset to the initial position, so that the rope is automatically clamped and locked. It has an anti-panic function. If the operator panics due to being frightened during the descent, most of the operators will try their best to tightly grasp everything around them. No matter in which direction the operator applies excessive force to the handle, the handle will not stay in the middle rotation range. When the operator is frightened and grabs the handle randomly, the descent protector can quickly lock the rope, so that the person stops descending and avoids danger. It also has a rope installation design that does not require unlocking and the overall structure is compact, with an ingenious design. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is an overall schematic diagram of a drop protector according to an embodiment of the present invention.

[0038] Figure 2 It is a schematic diagram of a perspective structure decomposition of an embodiment of the present invention.

[0039] Figure 3 It is a schematic diagram of the structural decomposition from another perspective of an embodiment of the present invention.

[0040] Figure 4 It is a schematic diagram of the rope winding structure after the sliding cover is opened.

[0041] Figure 5 It is a schematic diagram of the structure of the descent protector after the rope, i.e. the padlock, is installed.

[0042] Figure 6 It is a schematic diagram of the maximum distance d between the cam and the friction component.

[0043] Figure 7 It is a schematic diagram of the distance d between the cam and the friction assembly when the rope is clamped and locked.

[0044] Figure 8 It is a partial cross-sectional schematic diagram of the drop protector when the rotating handle reaches the first rotation range according to one embodiment of the present invention.

[0045] Fig. 9 It is a partial cross-sectional schematic diagram of the drop protector when the rotating handle reaches the middle rotation range according to one embodiment of the present invention.

[0046] Fig.10 It is a partial cross-sectional schematic diagram of the drop protector when the rotating handle reaches the final rotation range according to one embodiment of the present invention.

[0047] In the figure, 100, main body; 110, main body base; 111, main body limiting contour surface; 112, friction assembly; 1120, friction block; 1121, friction surface; 1122, first mounting hole; 1123, second mounting hole; 1124, rivet; 1125, button; 1126, button screw plug; 1127, button spring; 1128, screw plug; 113, first hole; 114, raised platform; 115, raised block; 116, column; 120, sliding cover; 121, second hole; 12 2. Rope guide part; 130. Rotating shaft sleeve; 200. Rope clamping assembly; 210. Central rotating shaft; 220. Cam base; 230. Cam; 231. Cam friction part; 240. Rotating spring; 300. Handle; 310. Handle rotating shaft; 320. Rotating connecting part; 321. First guide groove; 322. Second guide groove; 330. Hand-holding part; 340. Handle spring; 350. Extrusion assembly; 351. Wedge block; 352. Compression spring; 400. Rope; 500. Padlock. DETAILED DESCRIPTION

[0048] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0049] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0050] It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0052] To facilitate those skilled in the art to understand the present invention, the following Figures 1 to 10 A specific embodiment of the present invention will be described.

[0053] like Figures 1 to 3 As shown, the present invention provides an automatic stopping descent protector with an anti-panic function, comprising:

[0054] The main body 100 has a padlock portion cooperating with the padlock 500 at its lower portion and a friction surface 1121 at its other end;

[0055] A rope clamping assembly 200 is disposed in the main body 100, and the rope 400 passes through the rope clamping assembly 200;

[0056] The handle 300 is rotatably mounted on the outside of the rope clamping assembly 200, and a squeezing assembly 350 is disposed inside the handle 300;

[0057] Among them, the rotation process of the handle 300 from the initial position to the final position includes the first rotation range, the middle rotation range and the final rotation range in sequence; when the handle 300 is located in the first rotation range and the final rotation range, the rope 400 is squeezed by the rope clamping assembly 200 to the friction surface 1121 to clamp and lock the rope 400; when the handle 300 is rotated to the middle rotation range, the squeezing assembly 350 abuts against a contour surface of the main body 100 to weaken the clamping force between the rope clamping assembly 200 and the friction surface 1121, thereby adjusting the rope 400 to descend.

[0058] In this way, the rope 400 can be automatically clamped and locked, and at the same time, it has an anti-panic function. When the operator is frightened and grabs the handle 300 randomly, the rope 400 can be quickly locked, so that the operator stops descending and avoids danger.

[0059] Specifically, the rope clamping assembly 200 includes a central shaft 210, a cam base 220, a cam 230 and a return spring 240. The main body 100 includes a main body base 110 and a slide cover 120. The handle 300 includes a rotating connection part 320 and a hand-held part 330 integral with the rotating connection part 320, and also includes a handle shaft 310 and a handle spring 340. The squeezing assembly 350 includes a wedge block 351 and a compression spring 352.

[0060] The present invention is suitable for a small diameter rope of 400, has a compact size, greatly reduces the load, and is easy to carry.

[0061] The cam base 220 is fixedly connected to the main body base 110 via the central rotating shaft 210. The handle 300 is rotatably mounted on the cam base 220. The handle rotating shaft 310 is installed between the handle 300 and the cam base 220.

[0062] The cam 230 is hinged to the cam base 220 through the central rotating shaft 210, and the cam 230 is provided with a cam friction portion 231 that cooperates with the friction surface 1121 to clamp the rope 400. The cam friction portion 231 is set as a radially protruding arc structure. The rotation spring 240 is set between the central rotating shaft 210 and the cam 230, and can make the cam 230 rotate around the central rotating shaft 210 to reset. The rotation spring 240 can be a torsion spring.

[0063] In this embodiment, in order to make the cam 230 more accurately positioned on the cam base 220, a protruding platform 114 cooperating with the cam 230 is protruded at the corresponding position of the cam base 220, and the cam 230 is in a shell-like structure and is sleeved outside the protruding platform 114. The protruding platform 114 can be an integral structure with the cam base 220.

[0064] The main body base 110 is provided with a main body limiting contour surface 111 which can cooperate with the wedge block 351 . The main body limiting contour surface 111 is a curved surface which has the same motion trajectory as the force-bearing surface of the wedge block 351 within the rotation range of the middle section of the handle 300 .

[0065] The middle portion of the main body base 110 is fixedly connected to the cam base 220 via a central rotating shaft 210 .

[0066] A friction assembly 112 is installed at one end of the main body base 110. The side of the friction assembly 112 close to the cam 230 is a friction surface 1121, and the other end is provided with a first hole 113 for the padlock 500. The friction assembly 112 includes a friction block 1120. The friction block 1120 is provided with a friction surface 1121 close to the cam 230, and the friction surface 1121 is a plane. A first mounting hole 1122 and a second mounting hole 1123 are provided at the top of the friction block 1120. The first mounting hole 1122 is fixedly connected to the main body base 110 through a rivet 1124, and the second mounting hole 1123 is connected with an elastic latch assembly.

[0067] like Figure 2 As shown, the elastic plug-in assembly includes, from left to right, the button 1125 installed in the second mounting hole 1123, a button screw plug 1126, a button spring 1127 and a screw plug 1128.

[0068] In this embodiment, in order to make the friction assembly 112 more accurately positioned on the main body base 110, a protruding block 115 cooperating with the friction assembly 112 is protruded from the corresponding position of the main body base 110, and the friction block 1120 is in a shell-like structure and is sleeved outside the protruding block 115. The protruding block 115 can be an integral structure with the main body base 110.

[0069] A second hole 121 for the padlock 500 is provided at one end of the sliding cover 120. The second hole 121 is rotatably connected to the first hole 113 through the rotating shaft sleeve 130. The first hole 113 and the second hole 121 are connected in a concentric structure through the rotating shaft sleeve 130, so that the padlock 500 can be installed without removing the padlock 500, and it can be guaranteed that the padlock 500 will not be lost due to other reasons during operation. The first hole 113, the rotating shaft sleeve 130 and the second hole 121 form a safety hook hole for the padlock 500. The other end of the sliding cover 120 is connected to the friction assembly 112 through an elastic latch assembly. When the operator presses the button 1125, the sliding cover 120 is disconnected from the main base 110, and the sliding cover 120 can rotate relative to the main base 110; when it is necessary to fix the sliding cover 120 to the main base 110, the sliding cover 120 is rotated back to the button 1125, and the sliding cover 120 is connected to the main base 110.

[0070] There is a gap between the cam friction portion 231 and the friction surface 1121 , and the rope 400 passes through the gap.

[0071] The rotating connection part 320 of the handle 300 is rotatably connected to the cam base 220 through the handle shaft 310. A handle spring 340 is installed between the rotating connection part 320 and the cam base 220. The handle shaft 310 passes through the handle spring 340. The handle 300 can be reset by the handle spring 340. The handle spring 340 is a torsion spring. A first guide groove 321 and a second guide groove 322 are provided inside the rotating connection part 320.

[0072] The wedge block 351 is installed inside the rotating connection part 320, and one end of the wedge block 351 is installed in the first guide groove 321. The compression spring 352 is installed in the first guide groove 321, and one end of the compression spring 352 abuts against the wedge block 351, and the other end abuts against the inner wall of the first guide groove 321.

[0073] In order to make the handle 300 more accurately positioned on the cam base 220, a column 116 cooperating with the cam 230 is protrudingly provided at a corresponding position of the cam base 220, and the column 116 is installed in the second guide groove 322. The column 116 and the cam base 220 are an integral structure.

[0074] When the handle 300 rotates to the middle rotation range, the extrusion assembly 350 abuts against the main body limiting contour surface 111 and gives a thrust to the cam base 220 connected to the handle 300. When the thrust is greater than the friction force of the rope 400 between the cam friction portion 231 and the friction surface 1121, the cam 230 rotates, and the gap between the cam friction portion 231 and the friction surface 1121 increases as the cam 230 rotates, and the adjustment rope 400 descends.

[0075] When the handle 300 rotates to the final rotation range, the extrusion assembly 350 is automatically separated from the main body limiting contour surface 111, and the rotary spring 240 causes the cam 230 to rotate and reset. The gap between the cam friction portion 231 and the friction surface 1121 becomes smaller as the cam 230 is reset, and the rope 400 is clamped and locked by the cam friction portion 231 and the friction surface 1121 again.

[0076] like Figures 4-5 As shown, the safety hook hole 500 is installed at the lower end of the main body 100 of the fall protector, and the cam 230 of the rope clamping assembly 200 and the friction assembly 112 of the main body base 110 clamp the rope 400, which can achieve the hand-free braking, that is, the fall protector is in a normally closed state after being subjected to force. In order to clearly see the connection state of the rope 400 between the cam 230 and the friction assembly 112, the slide cover 120 is opened and rotated to the side in this figure. In actual use, the slide cover 120 is clamped together with the main body base 110 (the state is shown in FIG. Figure 5 shown). Figure 4 In the figure, the left end of the rope 400 is a fixed end, and the right end of the rope 400 is a rope control end.

[0077] A rope guide portion 122 is further provided on the outer surface of the sliding cover 120 , and the rope guide portion 122 is a protruding hook structure.

[0078] like Figure 5 As shown, in this embodiment, there are two rope guides 122, which are respectively arranged on the left and right sides of the outer surface, and the hook directions of the hook structures are opposite.

[0079] Now Figures 4-5 The winding method of the rope 400 is illustrated as follows:

[0080] Place the slide cover 120 of the fall protector toward the operator and place it horizontally with the safety hook hole facing downwards;

[0081] Press button 1125 to open the slide cover 120 counterclockwise until it does not interfere with the rope installation;

[0082] Wind the rope 400 as shown in the figure, and after winding is completed, close the sliding cover 120 clockwise, and the button 1125 is engaged with the sliding cover 120;

[0083] Then, the rope control end rope is passed around the two rope guides 122 on the outer surface of the sliding cover 120 .

[0084] The weight of the operator is transferred to the padlock part on the fall protector through the hook, which tends to drive the fall protector to move downward. The cam 230 wrapped with the rope 400 is rotated by the friction force of the rope 400, and the cam friction part 231 on the cam 230 squeezes the rope 400 onto the friction surface, thereby completely squeezing the rope to achieve the purpose of locking and stopping falling. Since the cam 230 and the cam base 220 are completely fixed together, the angle of rotation of the cam base 220 is the same as the angle of rotation of the cam 230.

[0085] In order to facilitate the description of the technical solution, θ is set as the rotation angle of the handle 300; d is set as the distance between the grinding surface of the cam 230 and the grinding surface of the grinding sleeve; F is set as the pulling force applied by the operator to the handle 300; F1 is set as the reaction force of the wedge block 351 on the outer contour of the base; F 合 It is configured that the cam base 220 is subjected to the combined force of the force of the handle 300 .

[0086] like Figure 6 As shown, the fall protector is in the initial state and the distance d is the maximum value.

[0087] like Figure 7 As shown, the fall protector is in a braking state, the rope 400 is clamped and locked, the cam 230 rotates clockwise, and the distance d is a minimum value.

[0088] In this embodiment, the angle corresponding to the first rotation range is 0°<θ<150°, the middle rotation range is 150°≤θ≤160°, and the angle corresponding to the last rotation range is 160°<θ<165°.

[0089] When the rotation angle of the handle 300 is between 0°<θ<150° and 160°<θ<165°, the descender is locked; the handle 300 is in a descendable state only when the rotation angle is between 150°≤θ≤160°, which prevents people from failing to escape due to two instincts. One is that the whole person is in a panic and can't do anything, and the other is that after a short panic, the person tries his best to hold on to everything around him. When the operator is frightened and grabs the handle 300 randomly, the rope 400 can be quickly locked to stop the person from descending and avoid danger. The design is more humane and improves the safety of use.

[0090] like Figure 8As shown, the handle 300 is in the first rotation range, that is, the angle of the handle 300 is 0°<θ<150°. The handle 300 is pulled in the direction of force F as shown in the figure. The direction of force F is perpendicular to the handle 300. The handle 300 rotates clockwise with the wedge block 351 inside it. When the rotation angle is less than 150°, the wedge block 351 does not contact the outer contour of the base. That is, the resultant torque received by the cam 230 is in the direction of N shown in the figure. This torque converts the gravity of the person into the friction and extrusion force between the rope and the descending protector, thereby firmly jamming the rope. It can be seen from the figure that the handle 300 is in the first rotation range, and the wedge block 351 in the handle 300 does not contact the main body limit contour surface 111.

[0091] like Fig. 9 As shown in FIG. 1 , the angle corresponding to the middle rotation range is 150°≤θ≤160°. The force is continuously applied in the direction F, and the wedge block 351 contacts the main body limit contour surface 111 and generates an interaction force. The wedge block 351 receives the force F1 from the main body base 110. Since the wedge block 351 is installed on the handle 300, the force F1 will be transmitted to the handle 300. The handle 300 is installed on the cam base 220, and the resultant force of the handle 300 on the cam base 220 is the force F 合 Since the cam base 220 rotates around the main body base 110, the force F 合 A clockwise torque N is generated on the cam base 220, which is Figure 4 The torque M is opposite, when the force F 合 Continuous increase will reduce the pressure of the rope 400 between the cam 230 and the friction sleeve, which will reduce the friction between the descent protector and the rope 400. When this friction force is less than the operator's own weight, the operator will start to descend.

[0092] like Fig.10 As shown, the angle corresponding to the final rotation range is 160°<θ<165°. Since the contact position between the main body limiting contour surface 111 and the wedge block 351 adopts a curve that matches the motion trajectory of the wedge block 351, F 合 When the distance d has just reached the maximum value, the wedge block 351 will be separated from the main body limiting contour surface 111 and no longer contact it, and the cam base 220 is subjected to the thrust F of the handle 300. 合 The cam 230 will return to the compressed state of the cam 230, the rope 400 and the friction surface 1121 under the action of the friction torque generated by the rope 400 and the pull-back force of the return spring 240, that is, Figure 4 As shown, the resultant torque is in the direction of M shown in the figure. This torque converts the body weight into friction and squeezing force between the rope 400 and the descending protector, thereby firmly blocking the rope and stopping the operator from descending.

[0093] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An automatic stopping descent protector with anti-panic function, characterized in that: include: A main body (100), wherein one end of the main body (100) is provided with a padlock portion that cooperates with the padlock (500), and the other end is provided with a friction surface (1121); A rope clamping assembly (200) is arranged in the main body (100), and the rope (400) passes through the rope clamping assembly (200); A handle (300) is rotatably mounted on the outside of the rope clamping assembly (200), and a squeezing assembly (350) is disposed inside the handle (300); The rotation process of the handle (300) from the initial position to the final position includes a first rotation range, a middle rotation range and a final rotation range in sequence; when the handle (300) is located in the first rotation range and the final rotation range, the rope (400) is squeezed by the rope clamping assembly (200) to the friction surface (1121) to clamp and lock the rope (400); when the handle (300) is rotated to the middle rotation range, the squeezing assembly (350) abuts against a contour surface of the main body (100) to weaken the clamping force between the rope clamping assembly (200) and the friction surface (1121), thereby adjusting the rope (400) to descend; The rope clamping assembly (200) comprises: Central rotating shaft (210); A cam base (220) is fixedly connected to the main body (100) via the central rotating shaft (210); the handle (300) is rotatably mounted on the cam base (220); A cam (230) is hingedly connected to the cam base (220) via the central rotating shaft (210), and the cam (230) is provided with a cam friction portion (231) that cooperates with the friction surface (1121) to clamp the rope (400); A rotation spring (240) is arranged between the central rotating shaft (210) and the cam (230) and can make the cam (230) rotate around the central rotating shaft (210) and return to its original position; A handle rotating shaft (310) is provided between the handle (300) and the cam base (220); The main body (100) is provided with a main body limiting contour surface (111) that can cooperate with the extrusion assembly (350); There is a gap between the cam friction part (231) and the friction surface (1121), and the rope (400) passes through the gap; when the handle (300) rotates to the middle rotation range, the extrusion assembly (350) abuts against the main body limit contour surface (111) and gives a thrust to the cam base (220) connected to the handle (300), and the thrust is greater than the friction force of the rope (400) between the cam friction part (231) and the friction surface (1121), and the cam (230) rotates, and the gap between the cam friction part (231) and the friction surface (1121) increases as the cam (230) rotates, and the adjustment rope (400) descends; When the handle (300) is rotated to the final rotation range, the extrusion assembly (350) and the main body limiting contour surface (111) are automatically separated, and the rotary spring (240) causes the cam (230) to rotate and reset, and the gap between the cam friction portion (231) and the friction surface (1121) becomes smaller as the cam (230) is reset, and the rope (400) is clamped and locked by the cam friction portion (231) and the friction surface (1121) again; The angle corresponding to the first rotation range is 0°<θ<150°, the angle corresponding to the last rotation range is 160°<θ<165°, and the middle rotation range is between the first rotation range and the last rotation range.

2. The automatic stopping descent protector with anti-panic function according to claim 1, characterized in that: The main body (100) comprises: A main body base (110) is provided with a friction assembly (112) at one end, the friction surface (1121) is a side of the friction assembly (112) close to the cam (230), and a first hole (113) for a padlock (500) is provided at the other end; A sliding cover (120) is provided with a second hole (121) for a padlock (500) at one end, the second hole (121) is rotatably connected to the first hole (113) via a rotating shaft sleeve (130), and the other end of the sliding cover (120) is clamped with the friction assembly (112); The main body limiting contour surface (111) is arranged on the main body base (110); The middle portion of the main body base (110) is fixedly connected to the cam base (220) via the central rotating shaft (210).

3. The automatic stopping descent protector with anti-panic function according to claim 2, characterized in that: The handle (300) comprises a rotating connection part (320) and a hand-held part (330) integrated with the rotating connection part (320); the rotating connection part (320) is rotatably connected to the cam base (220) via the handle rotating shaft (310); a handle spring (340) is installed between the rotating connection part (320) and the cam base (220); the handle rotating shaft (310) passes through the handle spring (340); and the handle (300) can be reset by the handle spring (340); a first guide groove (321) is provided inside the rotating connection part (320); The extrusion assembly (350) comprises a wedge block (351) and a compression spring (352); the wedge block (351) is installed inside the rotating connection portion (320), and one end of the wedge block is arranged in the first guide groove (321); the compression spring (352) is installed in the first guide groove (321), one end of the compression spring (352) abuts against the wedge block (351), and the other end abuts against the inner wall of the first guide groove (321); The wedge block (351) extends downward from the working part. When the handle (300) is rotated to the middle rotation range, the side surface of the working part contacts the limiting outer contour of the main body base (110) and squeezes the wedge block (351) to generate squeezing force. The squeezing force is transmitted to the handle (300), and the handle (300) transmits it to the cam base (220). The friction force of the rope (400) between the cam (230) and the grinding surface is reduced. The friction force of the rope (400) is less than the operator's own weight, and the operator descends.

4. The automatic stopping descent protector with anti-panic function according to claim 3 is characterized in that: The friction assembly (112) comprises a friction block (1120), the friction block (1120) being arranged at a side close to the cam (230) as the friction surface (1121), and the friction surface (1121) is a plane; a first mounting hole (1122) and a second mounting hole (1123) are provided at the top of the friction block (1120), and the first mounting hole (1122) is fixedly connected to the main body base (110) via a rivet (1124); the second mounting hole (1123) is connected to an elastic plug assembly, and the elastic plug assembly comprises a button (1125); wherein, after the button (1125) is inserted into the second mounting hole (1123), the sliding cover (120) is locked, and the sliding cover (120) cannot rotate around the rotating shaft sleeve (130) and is in a closed state; and when the button (1125) is pressed so that the button (1125) is disengaged from the second mounting hole (1123), the sliding cover (120) can rotate around the rotating shaft sleeve (130) to an open state.

5. The automatic stopping descent protector with anti-panic function according to claim 4 is characterized in that: The elastic latch assembly comprises, from top to bottom, the button (1125) installed in the second installation hole (1123), a button screw plug (1126), a button spring (1127) and a screw plug (1128).

6. An automatic stopping descent protector with anti-panic function according to any one of claims 1 to 5, characterized in that: The cam friction portion (231) is a radially protruding arc structure.

7. The automatic stopping descent protector with anti-panic function according to claim 2 is characterized in that: A rope guide portion (122) is also provided on the outer surface of the sliding cover (120), and the rope guide portion (122) is a protruding hook structure.

8. The automatic stopping descent protector with anti-panic function according to claim 7, characterized in that: The number of the rope guide parts (122) is two, which are respectively arranged on the left and right sides of the outer surface, and the hook directions of the hook structures are opposite.

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