A manual rope arrester

Abstract

The present invention relates to the technical field of rope safety devices, and particularly relates to a manual rope arrester, which comprises a housing. A rope-catching wheel is arranged inside the housing, and a gap for the rope to pass through is left between the rope-catching wheel and the housing. A first wheel cover is fixedly connected to one side of the rope-catching wheel, and a second wheel cover is connected to the other side of the rope-catching wheel. The second wheel cover is rotatably connected to a central shaft, and a one-way switch member is rotatably connected to the first wheel cover. The one-way switch member is provided with a switch rotation groove, and a sliding groove perpendicular to the switch rotation groove is provided in the one-way switch member. A top column is slidably connected in the sliding groove. A switch spring is fixedly connected to the central shaft near the position of the top column. A switch rotating shaft is fixedly connected to the first wheel cover, and a switch dial block is rotatably connected to the switch rotating shaft. The switch dial block is provided with a top groove and an inclined surface. An internal gear ring is fixedly connected to the second wheel cover near the switch dial block. This application has the effect of being able to manually lock the arrester to prevent the arrester from falling.

Description

Technical Field

[0001] The present invention relates to the technical field of rope safety devices, and particularly relates to a manual rope arrester. Background Art

[0002] At present, an arrester, also known as a fall arrester or a speed differential device, is a protective product. It can quickly brake and lock a falling object within a limited distance, and is suitable for cargo hoisting to protect the lives of ground operators and prevent damage to the lifted workpiece. The arrester will catch the rope when the user suddenly falls, preventing the user from continuing to fall.

[0003] There is a prior invention patent with the publication number CN103920254B, which protects a fall arrest safety device for arresting a rope, including: a rigid body provided with a rope placement groove for accommodating the rope; a safety system designed to rotate between a closed position and an open position, the closed position being for cooperating with the rope by arresting the rope at the bottom of the rope placement groove in the event of a fall, the open position being for releasing access to the rope placement groove to load or remove the rope; and a controller for causing the safety system to transfer from the closed position to the open position and vice versa, the control device including a pair of clamping jaws that can be actuated simultaneously in the open position to stabilize and lock the safety system in the open position, the two clamping jaws being arranged side by side on a transverse pivot pin integral with the pivoting safety system.

[0004] In the above technical solution, current arresters catch the rope when the user suddenly falls. Sometimes, when a user is working at a height and needs to stay in one place, it is necessary to fix at a fixed position on the rope. However, the existing arresters cannot manually catch the rope to complete the locking. Summary of the Invention

[0005] To solve the deficiencies of the prior art, the present invention provides a manual rope arrester.

[0006] The technical solution of the present invention is as follows:

[0007] The present invention provides a manual rope anti-falling device, which includes a housing. A rope-catching wheel is arranged inside the housing, and a gap for the rope to pass through is left between the rope-catching wheel and the housing. The housing is connected with a connecting component that enables the rope-catching wheel to rotate inside the housing. A first wheel cover is fixedly connected to one side of the rope-catching wheel, and a second wheel cover is connected to the other side of the rope-catching wheel. A central shaft is rotatably connected to the position corresponding to the center of the rope-catching wheel on the second wheel cover. A one-way switch component is rotatably connected to the position close to the central shaft on the first wheel cover. A switch rotating groove is provided at the position close to the central shaft on the one-way switch component. The central shaft is rotatably connected inside the switch rotating groove. A sliding groove perpendicular to the switch rotating groove is provided at the position close to the switch rotating groove on the one-way switch component. A top column is slidably connected inside the sliding groove. A switch spring is fixedly connected to the position of the central shaft close to the top column, and the other end of the switch spring is fixedly connected to the top column. The switch spring gives the top column a force away from the central shaft. A switch rotating shaft is fixedly connected to the position inside the first wheel cover close to the top column. A switch dial is rotatably connected to the switch rotating shaft. A top groove is provided at the position of the switch dial close to the top column. The top column can be clamped in the top groove. An inclined surface is provided at one end of the switch dial close to the top groove, and the inclined surface is inclined towards the central shaft from one end close to the top groove to the other end. An internal gear ring is fixedly connected to the second wheel cover close to the switch dial. When the top column is clamped in the top groove, the switch dial is separated from the internal gear ring. When the top column abuts against the inclined surface, the switch dial is clamped on the internal gear ring.

[0008] The beneficial effects achieved by the present invention are as follows: When the user needs to stay at a fixed position on the rope, the one-way switch component can be rotated. The one-way switch component drives the top column to move. The top column slides from the top groove to the inclined surface and abuts against the inclined surface, thereby pushing the switch dial and making the switch dial clamped on the internal gear ring. Since the relative position between the internal gear ring and the rope-catching wheel is fixed, the rope-catching wheel is blocked, and the rope is stuck on the rope-catching wheel and cannot move, realizing manual locking. And at this time, the user can move the anti-falling device upward to reverse the rope-catching wheel, so that the top block slides back from the inclined surface to the top groove, and the locking can be released. When the top column is clamped in the top groove, the separation of the switch dial from the internal gear ring means that the rotation of the rope-catching wheel will not affect the switch dial.

[0009] Further, a positioning block is fixedly connected to the position of the switch dial corresponding to the end of the top groove away from the inclined surface. A groove is provided on the one-way switch component. When the top column abuts against the inclined surface, the positioning block is clamped in the groove.

[0010] Through the above solution, the positioning block is used to prevent the top block from leaving the top groove from the side away from the inclined surface. The groove gives enough space for the positioning block, so that when the top block abuts against the inclined surface, the positioning block will not abut against the one-way switch component, affecting the user's manual locking of the anti-falling device.

[0011] Further, the internal gear ring includes a fixed ring fixedly connected to the first wheel cover. A plurality of card slots are formed on the inner side of the fixed ring, and the card slots are arranged in an array along the circumferential direction of the fixed ring. A first convex block and a second convex block are fixedly connected to the position of the switch slider close to the internal gear ring. When the ejector pin abuts against the inclined surface, the first convex block and the second convex block are respectively clamped in two card slots.

[0012] Through the above solution, the circumferential array of the card slots can ensure that the switch slider can catch the internal gear ring no matter what position the rope grabbing wheel rotates to. The first convex block and the second convex block can be simultaneously clamped in the internal gear ring to ensure that the switch slider can tightly clamp the internal gear ring.

[0013] Further, a switch knob is fixedly connected to the outer side of the one-way switch member.

[0014] Through the above solution, the switch knob facilitates the user to rotate the one-way switch member.

[0015] Further, a limit ejector block is fixedly connected to the position of the one-way switch member close to the switch slider. The limit ejector block is located at one end of the inclined surface away from the top groove. When the ejector pin is clamped in the top groove, the switch slider abuts against the limit ejector block.

[0016] Through the above solution, the limit ejector block prevents the switch slider from rotating in the reverse direction when the ejector pin is clamped in the top groove.

[0017] Further, the connecting component includes a rotating shaft rotatably connected to the housing. The first wheel cover is rotatably connected to the rotating shaft. A rotating rod is rotatably connected to the rotating shaft, and the other end of the rotating rod is fixedly connected to the central shaft.

[0018] Through the above solution, the rotating shaft is used to connect with structures such as the webbing, so as to connect with the safety device on the user's body, and the rope grabbing wheel rotates around the central shaft.

[0019] Further, a switch sliding groove is formed on the first wheel cover. A first sliding groove is formed on the housing corresponding to the position of the switch sliding groove. A sliding switch is slidably connected in the first sliding groove and the switch sliding groove together. A switch compression spring is fixedly connected in the switch sliding groove. The switch compression spring is arranged along the length direction of the switch sliding groove. The switch compression spring abuts against the sliding switch. In the natural state of the switch compression spring, the sliding switch is located at one end of the switch sliding groove close to the rotating shaft;

[0020] When the sliding switch slides to one end of the switch sliding groove close to the rotating shaft, the sliding switch slides to one end of the first sliding groove close to the rotating shaft, and the width of the gap is slightly smaller than the diameter of the rope;

[0021] A second chute is provided at one end of the outer shell close to the first chute and away from the rotating shaft. The second chute communicates with the first chute and is arc-shaped. When the sliding switch slides to the other end of the switch chute, the sliding switch slides to one end of the second chute away from the first chute, and the width of the gap is greater than the diameter of the rope. When the sliding switch slides to one end of the second chute away from the first chute, the sliding switch is clamped at one end of the second chute away from the first chute.

[0022] Through the above solution, when the user needs to pass a rope through the anti-falling device, the sliding switch can be moved. When the sliding switch is stuck in the second chute, at this time, because the gap becomes larger, the user can easily pass the rope through. And at this time, since the sliding switch is stuck, the rope-catching wheel will not reset, so that the user does not need to maintain the position of the rope-catching wheel anymore. After installing the rope, the user moves the sliding switch back to the first chute, and the switch compression spring pushes the sliding switch back to its original position, thereby pushing the rope-catching wheel to its original position and making the rope-catching wheel abut against the rope. While facilitating the user's operation, it can also ensure that the rope-catching wheel can tightly abut against the rope and ensure the effect of the anti-falling device.

[0023] Furthermore, a connecting rod is fixedly connected to the outer shell near the position of the gap. A left arc-shaped clamping plate and a right arc-shaped clamping plate are rotatably connected to the connecting rod. The connecting rod is fixedly connected with a torsion spring. One end of the torsion spring is fixedly connected to the left arc-shaped clamping plate, and the other end of the torsion spring is fixedly connected to the right arc-shaped clamping plate. In the natural state of the torsion spring, one end of the left arc-shaped clamping plate away from the connecting rod abuts against one end of the right arc-shaped clamping plate away from the connecting rod. The left arc-shaped clamping plate and the right arc-shaped clamping plate can clamp the rope. A left through groove is provided in the left arc-shaped clamping plate, and a right through groove is provided in the right arc-shaped clamping plate. A left pressing plate is slidably connected in the left through groove, and a right pressing plate is slidably connected in the right through groove. Both the left pressing plate and the right pressing plate can press against the rope.

[0024] Through the above solution, the user can place the rope between the left arc-shaped clamping plate and the right arc-shaped clamping plate and surround the rope with the left arc-shaped clamping plate and the right arc-shaped clamping plate. When the user falls, the left arc-shaped clamping plate and the right arc-shaped clamping plate can be immediately grasped. At this time, the palm presses against the left pressing plate and the right pressing plate, and the left pressing plate and the right pressing plate are pushed towards the rope direction, so that the left pressing plate and the right pressing plate can press against the rope, increasing the friction with the rope, and cooperating with the anti-falling device to improve the safety of high-altitude operations.

[0025] Furthermore, a left guard plate is fixedly connected to one end of the left pressing plate away from the right arc-shaped clamping plate, and the left guard plate is perpendicular to the left pressing plate. A right guard plate is fixedly connected to one end of the right pressing plate away from the left arc-shaped clamping plate, and the right guard plate is perpendicular to the right pressing plate;

[0026] A plurality of left spines are rotatably connected to the left arc-shaped clamping plate near the upper position of the left through groove. The left spines can all abut against the left pressing plate. When the left pressing plate presses against the rope, the left spines are arranged obliquely upward;

[0027] A plurality of right spines are rotatably connected to the position above the right through groove of the right arc-shaped splint. The right spines can all abut against the right abutting plate. When the right abutting plate abuts against the rope tightly, the right spines are arranged obliquely upward.

[0028] Through the above solution, the left guard plate and the right guard plate increase the contact area with the user's palm, facilitating the user's grasping and applying force. The left spines and the right spines can grip the rope, playing the same role as the anti-falling device. At the same time, when the user does not grasp the left guard plate and the right guard plate tightly, the left spines and the right spines will not be arranged obliquely upward, preventing the left spines and the right spines from affecting the normal movement of the anti-falling device usually.

[0029] Furthermore, a left guide fillet is provided at the position of the left spine close to the left arc-shaped splint, and a left slope is provided at one end of the left abutting plate close to the right arc-shaped splint. The left slope is inclined upward from one end close to the right arc-shaped splint to the other end;

[0030] A right guide fillet is provided at the position of the right spine close to the right arc-shaped splint, and a right slope is provided at one end of the right abutting plate close to the left arc-shaped splint. The right slope is inclined upward from one end close to the left arc-shaped splint to the other end.

[0031] Through the above solution, the cooperation of the left fillet and the left slope enables the left abutting plate to smoothly push the left spine, and the cooperation of the right fillet and the right slope enables the right abutting plate to smoothly push the right spine.

[0032] A manual rope anti-falling device of the present invention has the following advantages:

[0033] 1. When the user needs to stay at a fixed position on the rope, the one-way switch member can be rotated. The one-way switch member drives the ejector pin to move. The ejector pin slides from the top groove to the inclined surface and abuts against the inclined surface, thereby pushing the switch slider to make the switch slider engage with the internal gear ring. Since the relative position of the internal gear ring and the rope-gripping wheel is fixed, the rope-gripping wheel is stuck, and the rope is stuck on the rope-gripping wheel and cannot move, realizing manual locking. And at this time, the user can move the anti-falling device upward to reverse the rope-gripping wheel, so that the top block slides back from the inclined surface to the top groove, and the locking can be released. When the ejector pin is engaged in the top groove, the switch slider is separated from the internal gear ring, and the rotation of the rope-gripping wheel will not affect the switch slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present invention;

[0035] Figure 2 is the overall structural top view of Embodiment 1 of the present invention;

[0036] Figure 3 is the schematic diagram of the structure of the rope-gripping wheel of Embodiment 1 of the present invention;

[0037] Figure 4 is the exploded view of the sliding switch of Embodiment 1 of the present invention;

[0038] Figure 5 Schematic diagram of the switch block and the ejector pin in the first embodiment of the present invention;

[0039] Figure 6 Cross-sectional view of the one-way switch component in the first embodiment of the present invention;

[0040] Figure 7 Overall schematic diagram of the second embodiment of the present invention;

[0041] Figure 8 Exploded view of the left arc-shaped clamping plate, right arc-shaped clamping plate, left abutting plate and right abutting plate in the second embodiment of the present invention;

[0042] Figure 9 Cross-sectional view of the left thorn and right thorn in the second embodiment of the present invention.

[0043] In the figure, 1. Outer shell; 11. Connection assembly; 111. Rotating shaft; 112. Rotating rod; 12. First chute; 13. Second chute; 14. Slide switch; 15. Connecting rod; 151. Torsion spring; 16. Left arc-shaped clamping plate; 161. Left through groove; 162. Left abutting plate; 1621. Left slope; 163. Left guard plate; 164. Left thorn; 1641. Left guide fillet; 17. Right arc-shaped clamping plate; 171. Right through groove; 172. Right abutting plate; 1721. Right slope; 173. Right guard plate; 174. Right thorn; 1741. Right guide fillet; 2. Rope grasping wheel; 21. Gap; 22. First wheel cover; 221. One-way switch component; 2211. Switch rotating groove; 2212. Slide groove; 2213. Ejector pin; 2214. Switch spring; 2215. Limit top block; 2216. Switch knob; 2217. Groove; 222. Switch rotating shaft; 223. Switch block; 2231. Top groove; 2232. Inclined surface; 2233. Positioning block; 2234. First convex block; 2235. Second convex block; 224. Inner tooth ring; 2241. Fixed ring; 2242. Card slot; 23. Second wheel cover; 231. Switch chute; 2311. Switch compression spring; 24. Central shaft; 3. Webbing connecting shaft; 31. Connecting rod. Detailed implementation manners

[0044] For the convenience of those skilled in the art to understand the present invention, the following combines the drawings to illustrate the detailed implementation manners of the present invention.

[0045] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0046] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] Embodiment 1

[0048] The present invention provides a manual rope anti - fall device, as Figure 1 and Figure 2 shown, which includes a housing 1. A rope - grasping wheel 2 is arranged inside the housing 1, and a gap 21 for the rope to pass through is left between the rope - grasping wheel 2 and the housing 1. A first wheel cover 22 is detachably connected to one side of the rope - grasping wheel 2, a second wheel cover 23 is fixedly connected to the other side of the rope - grasping wheel 2, and a central shaft 24 is rotatably connected to the position corresponding to the center of the rope - grasping wheel 2 on the second wheel cover 23.

[0049] As Figure 1 and Figure 3 shown, the housing 1 is connected with a connection assembly 11. The connection assembly 11 includes a rotating shaft 111 rotatably connected to the housing 1. The first wheel cover 22 is rotatably connected to the rotating shaft 111. The rotating shaft 111 is rotatably connected with a rotating rod 112, and the other end of the rotating rod 112 is fixedly connected to the central shaft 24. Both ends of the rotating shaft 111 are fixedly connected with a connecting rod 31, and the other ends of the two connecting rods 31 are fixedly connected with a webbing connecting shaft 3. The rotating shaft 111 is used to connect with structures such as webbing, so as to connect with the safety device on the user's body, and the rope - grasping wheel 2 rotates around the central shaft 24.

[0050] As Figure 1 and Figure 4As shown, a switch sliding groove 231 is formed in the first-round cover 22, and a first sliding groove 12 is formed in the housing 1 at a position corresponding to the switch sliding groove 231. A sliding switch 14 is slidably connected in both the first sliding groove 12 and the switch sliding groove 231. A switch compression spring 2311 is fixedly connected in the switch sliding groove 231. The switch compression spring 2311 is arranged along the length direction of the switch sliding groove 231. The switch compression spring 2311 abuts against the sliding switch 14. In the natural state of the switch compression spring 2311, the sliding switch 14 is located at one end of the switch sliding groove 231 close to the rotating shaft 111. When the sliding switch 14 slides to one end of the switch sliding groove 231 close to the rotating shaft 111, the sliding switch 14 slides to one end of the first sliding groove 12 close to the rotating shaft 111, and the width of the gap 21 is slightly smaller than the diameter of the rope. A second sliding groove 13 is formed in the housing 1 at one end of the first sliding groove 12 away from the rotating shaft 111. The second sliding groove 13 communicates with the first sliding groove 12, and the second sliding groove 13 is arc-shaped. When the sliding switch 14 slides to the other end of the switch sliding groove 231, the sliding switch 14 slides to one end of the second sliding groove 13 away from the first sliding groove 12, and the width of the gap 21 is larger than the diameter of the rope. When the sliding switch 14 slides to one end of the second sliding groove 13 away from the first sliding groove 12, the sliding switch 14 is clamped at one end of the second sliding groove 13 away from the first sliding groove 12. When the user needs to pass a rope through the fall arrester, the sliding switch 14 can be moved. When the sliding switch 14 is stuck in the second sliding groove 13, at this time, because the gap 21 becomes larger, the user can easily pass the rope through. Moreover, at this time, because the sliding switch 14 is stuck, the rope grabbing wheel 2 will not reset, so that the user does not need to maintain the position of the rope grabbing wheel 2 anymore. After installing the rope, the user moves the sliding switch 14 back to the first sliding groove 12, and the switch compression spring 2311 pushes the sliding switch 14 back to its original position, thereby pushing the rope grabbing wheel 2 back to its original position and making the rope grabbing wheel 2 abut against the rope. While facilitating the user's operation, it can also ensure that the rope grabbing wheel 2 can tightly abut against the rope wheel, ensuring the effect of the fall arrester.

[0051] As Figure 5 and Figure 6As shown, the first wheel cover 22 is rotatably connected to a one-way switch member 221 near the central axis 24. A switch rotation slot 2211 is defined in the one-way switch member 221 near the central axis 24, and the central axis 24 is rotatably connected within the switch rotation slot 2211. A sliding slot 2212 perpendicular to the switch rotation slot 2211 is defined in the one-way switch member 221 near the switch rotation slot 2211. A top post 2213 is slidably connected within the sliding slot 2212. A switch spring 2214 is fixedly connected to the central axis 24 near the top post 2213. The other end of the switch spring 2214 is fixedly connected to the top post 2213, and the switch spring 2214 applies a force to the top post 2213 away from the central axis 24. A switch shaft 222 is fixedly connected to the first wheel cover 22 near the top post 2213. A switch selector 223 is rotatably connected to the switch shaft 222. A top groove 2231 is defined in the switch selector 223 near the top post 2213, and the top post 2213 can be snapped into the top groove 2231. A sloped surface 2232 is defined in the switch selector 223 near one end of the top groove 2231. The sloped surface 2232 slopes from one end near the top groove 2231 toward the other end, toward the center axis 24. An inner toothed ring 224 is fixedly connected to the second wheel cover 23 near the switch selector 223. When the top post 2213 is snapped into the top groove 2231, the switch selector 223 separates from the inner toothed ring 224. When the top post 2213 abuts the sloped surface 2232, the switch selector 223 snaps into the inner toothed ring 224. When the user needs to stay at a fixed position of the rope, the one-way switch 221 can be rotated. The one-way switch 221 drives the top column 2213 to move. The top column 2213 slides from the top groove 2231 to the inclined surface 2232 and abuts against the inclined surface 2232, thereby pushing the switch block 223 to allow the switch block 223 to engage the inner gear ring 224. Since the inner gear ring 224 is fixed relative to the rope grabbing wheel 2, the rope grabbing wheel 2 is stuck and the rope is stuck on the rope grabbing wheel 2 and cannot move.

[0052] like Figure 5 and Figure 6As shown, a positioning block 2233 is fixedly connected to one end of the top groove 2231 away from the inclined surface 2232 of the switch slider 223. A groove 2217 is formed in the one-way switch member 221. When the top column 2213 abuts against the inclined surface 2232, the positioning block 2233 is clamped in the groove 2217. A limiting top block 2215 is fixedly connected to the position of the one-way switch member 221 close to the switch slider 223. The limiting top block 2215 is located at one end of the inclined surface 2232 away from the top groove 2231. When the top column 2213 is clamped in the top groove 2231, the switch slider 223 abuts against the limiting top block 2215. The positioning block 2233 is used to prevent the top block from leaving the top groove 2231 from the side away from the inclined surface 2232. The groove 2217 provides enough space for the positioning block 2233 so that the positioning block 2233 will not abut against the one-way switch member 221 when the top block abuts against the inclined surface 2232, affecting the user's manual locking of the anti-falling device. The limiting top block 2215 prevents the switch slider 223 from rotating in the reverse direction when the top column 2213 is clamped in the top groove 2231.

[0053] As Figure 5 and Figure 6 shown, the internal gear ring 224 includes a fixed ring 2241 fixedly connected to the first wheel cover 22. A plurality of card slots 2242 are formed in the inner side of the fixed ring 2241. The card slots 2242 are arranged in an array along the circumferential direction of the fixed ring 2241. A first convex block 2234 and a second convex block 2235 are fixedly connected to the position of the switch slider 223 close to the internal gear ring 224. When the top column 2213 abuts against the inclined surface 2232, the first convex block 2234 and the second convex block 2235 are respectively clamped in two card slots 2242. The circumferential array of the card slots 2242 can ensure that the switch slider 223 can clamp the internal gear ring 224 no matter what position the rope grabbing wheel 2 rotates to. The first convex block 2234 and the second convex block 2235 can be simultaneously clamped in the internal gear ring 224 to ensure that the switch slider 223 can tightly clamp the internal gear ring 224.

[0054] Looking back Figure 4 , a switch knob 2216 is fixedly connected to the outside of the one-way switch member 221. The switch knob 2216 facilitates the user to rotate the one-way switch member 221.

[0055] The implementation principle of the manual rope anti-falling device provided by the present invention is as follows: When the user needs to stay at a fixed position on the rope, the one-way switch member 221 can be rotated. The one-way switch member 221 drives the ejector pin 2213 to move. The ejector pin 2213 slides from the top groove 2231 to the inclined surface 2232 and abuts against the inclined surface 2232, thereby pushing the switch slider 223 to make the switch slider 223 snap onto the internal gear ring 224. Since the relative position of the internal gear ring 224 and the rope-gripping wheel 2 is fixed, the rope-gripping wheel 2 is stuck, and the rope is stuck on the rope-gripping wheel 2 and cannot move, realizing manual locking. And at this time, the user can move the anti-falling device upward to reverse the rope-gripping wheel 2, so that the top block slides back from the inclined surface 2232 to the top groove 2231, and the locking can be released. When the ejector pin 2213 is snapped into the top groove 2231, the switch slider 223 is separated from the internal gear ring 224, and the rotation of the rope-gripping wheel 2 will not affect the switch slider 223.

[0056] Embodiment 2

[0057] A manual rope anti-falling device, as Figure 7 and Figure 8 shown, is different from Embodiment 1 in that a connecting rod 15 is fixedly connected to the outer shell 1 near the gap 21. A left arc-shaped clamping plate 16 and a right arc-shaped clamping plate 17 are rotatably connected to the connecting rod 15. The connecting rod 15 is fixedly connected with a torsion spring 151. One end of the torsion spring 151 is fixedly connected to the left arc-shaped clamping plate 16, and the other end of the torsion spring 151 is fixedly connected to the right arc-shaped clamping plate 17. In the natural state of the torsion spring 151, the end of the left arc-shaped clamping plate 16 away from the connecting rod 15 abuts against the end of the right arc-shaped clamping plate 17 away from the connecting rod 15. The left arc-shaped clamping plate 16 and the right arc-shaped clamping plate 17 can clamp the rope. The left arc-shaped clamping plate 16 is provided with a left through groove 161, and the right arc-shaped clamping plate 17 is provided with a right through groove 171. A left pressing plate 162 is slidably connected in the left through groove 161, and a right pressing plate 172 is slidably connected in the right through groove 171. Both the left pressing plate 162 and the right pressing plate 172 can press against the rope. The user can place the rope between the left arc-shaped clamping plate 16 and the right arc-shaped clamping plate 17 and surround the rope with the left arc-shaped clamping plate 16 and the right arc-shaped clamping plate 17. When the user falls, the left arc-shaped clamping plate 16 and the right arc-shaped clamping plate 17 can be grasped immediately. At this time, the palm abuts against the left pressing plate 162 and the right pressing plate 172, and the left pressing plate 162 and the right pressing plate 172 are pushed towards the rope direction, so that the left pressing plate 162 and the right pressing plate 172 can press against the rope, increasing the friction with the rope, and cooperating with the anti-falling device to improve the safety of high-altitude operations.

[0058] As Figure 8 and Figure 9As shown in the figure, a left guard plate 163 is fixedly connected to one end of the left pressing plate 162 away from the right arc-shaped clamping plate 17. The left guard plate 163 is perpendicular to the left pressing plate 162. A right guard plate 173 is fixedly connected to one end of the right pressing plate 172 away from the left arc-shaped clamping plate 16. The right guard plate 173 is perpendicular to the right pressing plate 172. A plurality of left spines 164 are rotatably connected to a position above the left through groove 161 of the left arc-shaped clamping plate 16. The left spines 164 can all abut against the left pressing plate 162. A left guide fillet 1641 is formed at a position of the left spine 164 close to the left arc-shaped clamping plate 16. A left slope 1621 is formed at one end of the left pressing plate 162 close to the right arc-shaped clamping plate 17. The left slope 1621 is inclined upward from one end close to the right arc-shaped clamping plate 17 to the other end. When the left pressing plate 162 abuts against the rope, the left spines 164 are arranged obliquely upward. A plurality of right spines 174 are rotatably connected to a position above the right through groove 171 of the right arc-shaped clamping plate 17. The right spines 174 can all abut against the right pressing plate 172. A right guide fillet 1741 is formed at a position of the right spine 174 close to the right arc-shaped clamping plate 17. A right slope 1721 is formed at one end of the right pressing plate 172 close to the left arc-shaped clamping plate 16. The right slope 1721 is inclined upward from one end close to the left arc-shaped clamping plate 16 to the other end. When the right pressing plate 172 abuts against the rope, the right spines 174 are arranged obliquely upward. The left guard plate 163 and the right guard plate 173 increase the contact area with the user's palm, facilitating the user's grasping and applying force. The left spines 164 and the right spines 174 can grip the rope, playing the same role as the anti-falling device. At the same time, when the user does not grasp the left guard plate 163 and the right guard plate 173, the left spines 164 and the right spines 174 will not be arranged obliquely upward, preventing the left spines 164 and the right spines 174 from affecting the normal movement of the anti-falling device usually. The cooperation of the left fillet and the left slope 1621 enables the left pressing plate 162 to smoothly push the left spines 164, and the cooperation of the right fillet and the right slope 1721 enables the right pressing plate 172 to smoothly push the right spines 174.

[0059] The above-described embodiments of the present invention do not constitute a limitation to the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A manual rope arrester, comprising a housing (1), a rope gripping wheel (2) is arranged inside the housing (1), and a gap (21) for the rope to pass through is left between the rope gripping wheel (2) and the housing (1), characterized in that: The housing (1) is connected with a connecting component (11) that enables the rope-grabbing wheel (2) to rotate within the housing (1). One side of the rope-grabbing wheel (2) is fixedly connected with a first wheel cover (22), and the other side of the rope-grabbing wheel (2) is connected with a second wheel cover (23). A central shaft (24) is rotatably connected to the second wheel cover (23) corresponding to the central position of the rope-grabbing wheel (2). A one-way switch component (221) is rotatably connected to the first wheel cover (22) near the central shaft (24). A switch rotating groove (2211) is formed in the one-way switch component (221) near the central shaft (24), and the central shaft (24) is rotatably connected within the switch rotating groove (2211). A sliding groove (2212) perpendicular to the switch rotating groove (2211) is formed in the one-way switch component (221) near the switch rotating groove (2211). A top column (2213) is slidably connected within the sliding groove (2212). A switch spring (2214) is fixedly connected to the central shaft (24) near the top column (2213), and the other end of the switch spring (2214) is fixedly connected to the top column (2213). The switch spring (2214) applies a force to the top column (2213) in a direction away from the central shaft (24). A switch rotating shaft (222) is fixedly connected to the first wheel cover (22) near the top column (2213). A switch dial (223) is rotatably connected to the switch rotating shaft (222). A top groove (2231) is formed in the switch dial (223) near the top column (2213), and the top column (2213) can be clamped within the top groove (2231). An inclined surface (2232) is formed at one end of the switch dial (223) near the top groove (2231), and the inclined surface (2232) is inclined in a direction approaching the central shaft (24) from one end near the top groove (2231) to the other end. An internal gear ring (224) is fixedly connected to the second wheel cover (23) near the switch dial (223). When the top column (2213) is clamped within the top groove (2231), the switch dial (223) is separated from the internal gear ring (224). When the top column (2213) abuts against the inclined surface (2232), the switch dial (223) is clamped onto the internal gear ring (224); A positioning block (2233) is fixedly connected to the switch dial (223) corresponding to the end of the top groove (2231) away from the inclined surface (2232). A groove (2217) is formed in the one-way switch component (221). When the top column (2213) abuts against the inclined surface (2232), the positioning block (2233) is clamped within the groove (2217); The internal gear ring (224) includes a fixed ring (2241) fixedly connected to the first cover (22). A plurality of card slots (2242) are formed inside the fixed ring (2241), and the card slots (2242) are arranged in an array along the circumferential direction of the fixed ring (2241). A first convex block (2234) and a second convex block (2235) are fixedly connected to the switch dial block (223) near the position of the internal gear ring (224). When the ejector pin (2213) abuts against the inclined surface (2232), the first convex block (2234) and the second convex block (2235) are respectively clamped in two card slots (2242).

2. The manual rope anti-falling device according to claim 1, wherein: A switch knob (2216) is fixedly connected to the outside of the one-way switch member (221).

3. The manual rope anti-falling device according to claim 1, characterized in that: A limiting ejector block (2215) is fixedly connected to the one-way switch member (221) near the position of the switch dial block (223). The limiting ejector block (2215) is located at one end of the inclined surface (2232) away from the top groove (2231). When the ejector pin (2213) is clamped in the top groove (2231), the switch dial block (223) abuts against the limiting ejector block (2215).

4. A manual rope anti-falling device according to claim 1, characterized in that: The connecting component (11) includes a rotating shaft (111) rotatably connected to the housing (1). The first cover (22) is rotatably connected to the rotating shaft (111). The rotating shaft (111) is rotatably connected to a rotating rod (112), and the other end of the rotating rod (112) is fixedly connected to the central shaft (24).

5. A manual rope anti-falling device according to claim 1, characterized in that: A switch sliding groove (231) is formed on the first cover (22). A first sliding groove (12) is formed on the housing (1) corresponding to the position of the switch sliding groove (231). A sliding switch (14) is slidably connected in the first sliding groove (12) and the switch sliding groove (231). A switch compression spring (2311) is fixedly connected in the switch sliding groove (231). The switch compression spring (2311) is arranged along the length direction of the switch sliding groove (231). The switch compression spring (2311) abuts against the sliding switch (14). In the natural state of the switch compression spring (2311), the sliding switch (14) is located at one end of the switch sliding groove (231) close to the rotating shaft (111); when the sliding switch (14) slides to one end of the switch sliding groove (231) close to the rotating shaft (111), the sliding switch (14) slides to one end of the first sliding groove (12) close to the rotating shaft (111), and the width of the gap (21) is slightly smaller than the diameter of the rope; a second sliding groove (13) is formed on the housing (1) near one end of the first sliding groove (12) away from the rotating shaft (111). The second sliding groove (13) communicates with the first sliding groove (12), and the second sliding groove (13) is arc-shaped. When the sliding switch (14) slides to the other end of the switch sliding groove (231), the sliding switch (14) slides to one end of the second sliding groove (13) away from the first sliding groove (12), and the width of the gap (21) is larger than the diameter of the rope. When the sliding switch (14) slides to one end of the second sliding groove (13) away from the first sliding groove (12), the sliding switch (14) is clamped at one end of the second sliding groove (13) away from the first sliding groove (12).

6. The manual rope anti-falling device according to claim 1, wherein: A connecting rod (15) is fixedly connected to the housing (1) near the position of the gap (21). A left arc-shaped clamping plate (16) and a right arc-shaped clamping plate (17) are rotatably connected to the connecting rod (15). The connecting rod (15) is fixedly connected with a torsion spring (151). One end of the torsion spring (151) is fixedly connected to the left arc-shaped clamping plate (16), and the other end of the torsion spring (151) is fixedly connected to the right arc-shaped clamping plate (17). In the natural state of the torsion spring (151), the end of the left arc-shaped clamping plate (16) far from the connecting rod (15) abuts against the end of the right arc-shaped clamping plate (17) far from the connecting rod (15). The left arc-shaped clamping plate (16) and the right arc-shaped clamping plate (17) can clamp the rope. A left through groove (161) is formed in the left arc-shaped clamping plate (16), and a right through groove (171) is formed in the right arc-shaped clamping plate (17). A left pressing plate (162) is slidably connected in the left through groove (161), and a right pressing plate (172) is slidably connected in the right through groove (171). Both the left pressing plate (162) and the right pressing plate (172) can press against the rope.

7. A manual rope arrester according to claim 6, characterized in that: A left guard plate (163) is fixedly connected to the end of the left pressing plate (162) far from the right arc-shaped clamping plate (17). The left guard plate (163) is perpendicular to the left pressing plate (162). A right guard plate (173) is fixedly connected to the end of the right pressing plate (172) far from the left arc-shaped clamping plate (16). The right guard plate (173) is perpendicular to the right pressing plate (172). A plurality of left spines (164) are rotatably connected to the left arc-shaped clamping plate (16) near the upper position of the left through groove (161). The left spines (164) can all abut against the left pressing plate (162). When the left pressing plate (162) presses against the rope, the left spines (164) are arranged obliquely upward. A plurality of right spines (174) are rotatably connected to the right arc-shaped clamping plate (17) near the upper position of the right through groove (171). The right spines (174) can all abut against the right pressing plate (172). When the right pressing plate (172) presses against the rope, the right spines (174) are arranged obliquely upward.

8. A manual rope arrester according to claim 7, characterized in that: A left guiding fillet (1641) is formed at the position of the left spine (164) near the left arc-shaped clamping plate (16). A left slope (1621) is formed at one end of the left pressing plate (162) near the right arc-shaped clamping plate (17). The left slope (1621) is inclined upward from the end near the right arc-shaped clamping plate (17) to the other end. A right guiding fillet (1741) is formed at the position of the right spine (174) near the right arc-shaped clamping plate (17). A right slope (1721) is formed at one end of the right pressing plate (172) near the left arc-shaped clamping plate (16). The right slope (1721) is inclined upward from the end near the left arc-shaped clamping plate (16) to the other end.

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