Rope loosening detection device

Abstract

The utility model discloses a rope loosening detection device. The loose rope detection device comprises a detection roller, an elastic piece and a position sensor; the detection roller is movably arranged between a first position and a second position, the peripheral surface of the detection roller is used for abutting against the rope so as to be located at the first position, the axial direction of the detection roller is used for intersecting with the length direction of the rope, and the length size of the detection roller is larger than the diameter of the rope so that the rope can slide in the axial direction of the detection roller relative to the detection roller; the elastic piece is connected to the detection roller so as to apply acting force to the detection roller to enable the detection roller to move towards the second position; the position sensor is arranged at a preset position so as to collect a rope loosening signal generated when the detection roller moves to the second position. Therefore, the length direction of the detection roller is larger than the diameter of the rope, and the rope can slide in the axial direction of the detection roller relative to the detection roller in the process that the roller winds the rope or releases the rope, so that different rope outlet positions are matched, and the rope is prevented from being pulled and damaged.

Description

Technical Field

[0001] The utility model relates to the field of slack rope detection devices, and more particularly to a slack rope detection device. Background Art

[0002] A multi-storey parking garage is a mechanical or mechanical equipment system used to store and retrieve vehicles in the largest quantity.

[0003] In the existing multi-storey parking garage, a wire rope is wound around a drum, and then a carrier plate is suspended by the wire rope to move a vehicle between different floors of the garage. The multi-storey parking garage includes a slack rope detection device for detecting the slack or breakage of the wire rope. The slack rope detection device includes a guide wheel in contact with the wire rope to guide the wire rope. However, the position of the guide wheel is fixed. During the rotation of the drum, the rope 120 leaves or winds around the drum from different positions (rope outlet positions) of the drum. In this way, the guide wheel makes it impossible for the wire rope to match different rope outlet positions of the drum, and the wire rope is easily broken.

[0004] Therefore, the utility model provides a slack rope detection device to at least partially solve the above problems. Summary of the Utility Model

[0005] A series of simplified concepts are introduced in the Summary of the Utility Model section, which will be further described in detail in the Specific Embodiment section. The Summary of the Utility Model section of the utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above technical problems, the utility model provides a slack rope detection device, which includes:

[0007] A detection roller movably arranged between a first position and a second position. The outer peripheral surface of the detection roller is used to abut against the rope so as to be located at the first position. The axial direction of the detection roller is used to intersect with the length direction of the rope. The length dimension of the detection roller is greater than the diameter of the rope, so that the rope can slide relative to the detection roller along the axial direction of the detection roller;

[0008] An elastic member connected to the detection roller to apply a force to the detection roller to move the detection roller towards the second position;

[0009] A position sensor arranged at a preset position to be able to collect a slack rope signal when the detection roller moves to the second position.

[0010] According to the loose rope detection device of the present utility model, the length direction of the detection roller is greater than the diameter of the rope. During the process of the roller winding or releasing the rope, the rope can slide relative to the detection roller along the axial direction of the detection roller, so as to match different rope outlet positions and avoid the rope being pulled and damaged.

[0011] Optionally, the loose rope detection device further includes:

[0012] A fixed bracket;

[0013] A movable frame, and the detection roller is rotatably arranged on the movable frame;

[0014] The movable frame is movably connected to the fixed bracket along a moving direction intersecting with the axial direction of the detection roller, or

[0015] The movable frame is rotatably connected to the fixed bracket around a rotation axis parallel to the axial direction of the detection roller.

[0016] Optionally, the fixed bracket is provided with a sleeve, the movable frame is provided with a shaft, and the shaft is movably inserted through the sleeve along the moving direction.

[0017] Optionally, an elastic member is sleeved on the shaft, and the edge of the outer peripheral surface of the detection roller far from the shaft is used to abut against the rope.

[0018] Optionally, the loose rope detection device further includes a positioning member, the positioning member is connected to the shaft, the positioning member is located on the side of the sleeve far from the movable frame, and along the radial direction of the shaft, the positioning member extends to the outside of the inner surface of the sleeve far from the center of the sleeve.

[0019] Optionally, the movable frame is rotatably connected to the fixed bracket around a rotation axis parallel to the axial direction of the detection roller,

[0020] One end of the elastic member is connected to the fixed bracket, the other end of the elastic member is connected to the movable frame, and the edge of the outer peripheral surface of the detection roller close to the rotation axis is used to abut against the rope.

[0021] Optionally, the loose rope detection device further includes:

[0022] A sliding rod frame;

[0023] A sliding rod, the axial direction of the sliding rod is parallel to the axial direction of the detection roller, and the sliding rod is connected to the sliding rod frame;

[0024] A guide wheel, the guide wheel is sleeved on the sliding rod, and the guide wheel and the detection roller are respectively arranged on the opposite sides of the rope so that the rope presses against the detection roller at the first position.

[0025] Optionally, the guide wheel is movably sleeved on the sliding rod along the axial direction of the sliding rod.

[0026] Optionally, the outer peripheral surface of the guide wheel is radially recessed inward to form a guide groove for setting the rope.

[0027] Optionally, along the axial direction of the sliding rod, the guide wheel moves between a first guide position and a second guide position.

[0028] Along the axial direction of the sliding rod, the position of the detection roller is between the guide wheel at the first guide position and the guide wheel at the second guide position.

[0029] Optionally, the position sensor includes a travel switch. Description of the Drawings

[0030] To make the advantages of the present utility model easier to understand, the present utility model briefly described above will be described in more detail by referring to the specific embodiments shown in the drawings. It can be understood that these drawings only depict typical embodiments of the present utility model, and thus should not be considered as limiting its protection scope. The present utility model is described and explained with additional features and details through the drawings.

[0031] Figure 1 A side view schematic diagram of the loose rope detection device according to the first preferred embodiment of the present utility model, wherein the detection roller at the second position is shown by a single dotted line;

[0032] Figure 2 For Figure 1 A top view schematic diagram of the loose rope detection device;

[0033] Figure 3 A three-dimensional schematic diagram of the loose rope detection device according to the second preferred embodiment of the present utility model;

[0034] Figure 4 For Figure 3 A side view schematic diagram of the loose rope detection device, wherein the visible part of the detection roller at the first position is shown by a solid line, and the detection roller at the second position is shown by a single dotted line;

[0035] Figure 5 A side view schematic diagram of the loose rope detection device according to the third preferred embodiment of the present utility model, wherein the detection roller and the movable frame at the second position are shown by a dotted line, and only a part of the fixed bracket is shown;

[0036] Figure 6 For Figure 5 A top view schematic diagram of the loose rope detection device; and

[0037] Figure 7 A side view schematic diagram of the loose rope detection device according to the fourth preferred embodiment of the present utility model, wherein the detection roller and the movable frame at the second position are shown by a dotted line.

[0038] Description of Reference Numerals

[0039] 110: Detection roller 120: Rope

[0040] 130: Elastic member 150: Fixed bracket

[0041] 151: Fixed portion 151a: First fixed wall

[0042] 151b: Second fixing wall 152: Connecting portion

[0043] 152a: First connecting wall 152b: Second connecting wall

[0044] 152c: Third connecting wall 160: Movable frame

[0045] 160a: First movable wall 160b: Second movable wall

[0046] 170: Sleeve 171: Shaft

[0047] 172: Positioning piece 173: Mounting bracket

[0048] 240: Position sensor 251b: Second fixed wall

[0049] 252a: First connecting wall 274: Sliding rod

[0050] 275: Guide wheel 276: Guide groove

[0051] 277: Slider rack 277a: First slide wall

[0052] 277b: Second slide rod wall 310: Detection roller

[0053] 330: elastic member 340: position sensor

[0054] 350: Fixed bracket 360: Movable bracket

[0055] 360a: First movable wall 370: Contact wall

[0056] 450: Fixed bracket 475: Guide wheel

[0057] 477: Sled Stand DETAILED DESCRIPTION

[0058] In the following description, numerous specific details are given to provide a more thorough understanding of the present utility model. However, it will be apparent to those skilled in the art that embodiments of the present utility model may be practiced without one or more of these details. In other instances, some well-known technical features are not described in order to avoid confusion with the embodiments of the present utility model.

[0059] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower" and similar expressions used herein are for illustrative purposes only and are not limiting.

[0060] In this article, ordinal numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meanings, such as a specific order, etc.

[0061] In order to thoroughly understand the embodiments of the present utility model, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present utility model are described in detail below. However, in addition to these detailed descriptions, the present utility model may also have other embodiments.

[0062] First Embodiment

[0063] This embodiment provides a loose rope detection device. The loose rope detection device can be used in a garage. The garage is a multi-story structure. The garage moves the vehicle-carrying board for placing vehicles vertically along the rope 120 to move the vehicle between different floors. At this time, the rope 120 is in a taut state. The rope 120 can be a steel wire rope. The garage has a drum. The rope 120 is wound around the drum. During the rotation of the drum, the rope 120 leaves or winds around the drum from different positions (rope outlet positions) of the drum. The loose rope detection device is located near the drum. For example, the loose rope detection device is located between the drum and the vehicle-carrying board. The rope 120 abuts against the outer peripheral surface of the detection roller 110 of the loose rope detection device. The rope 120 can slide relative to the detection roller 110 along the axial direction of the detection roller 110, so as to match any rope outlet position and avoid the rope 120 being pulled and damaged.

[0064] Please refer to Figure 1 and Figure 2 The loose rope detection device includes a detection roller 110. The axial direction of the detection roller 110 is parallel to the axial direction of the drum. The detection roller 110 is in a first position ( Figure 1 The visible part of the detection roller 110 located in the first position is shown by a solid line in Figure 1It is movably arranged between the positions of the detection roller 110 indicated by the single-dot dash line. The outer peripheral surface of the detection roller 110 is used to abut against the rope 120. In this way, the action of the rope 120 on the detection roller 110 makes the detection roller 110 located at the first position. Among them, the axial direction of the detection roller 110 and the extending direction of the rope 120 intersect (for example, perpendicular). The length dimension of the detection roller 110 is greater than the diameter of the rope 120. In this way, during the process of the drum winding or releasing the rope 120, the rope 120 can slide relative to the detection roller 110 along the axial direction of the detection roller 110, so as to match different rope outlet positions and avoid the rope 120 being pulled and damaged.

[0065] Optionally, the detection roller 110 is a nylon material part made of nylon material. Thus, the detection roller 110 has a small weight and a large friction force between the detection roller 110 and the rope 120.

[0066] As Figure 1 and Figure 2 shown, the loose rope detection device further includes an elastic member 130. The elastic member 130 can be a spring. The elastic member 130 is connected to the detection roller 110. In this way, the elastic member 130 can apply a force to the detection roller 110. This force can make the detection roller 110 move towards the second position. In this way, when the rope 120 is loose or broken, the action of the rope 120 on the detection roller 110 is released. At this time, under the action of the elastic member 130, the detection roller 110 automatically returns to the second position.

[0067] Please continue to refer to Figure 1 and Figure 2 , the loose rope detection device further includes a position sensor (not shown). The position sensor is arranged at a preset position. The preset position corresponds to the second position of the detection roller 110. In this way, the position sensor can collect the loose rope signal when the detection roller 110 moves to the second position. At this time, it can be determined whether the rope 120 is broken or loose according to the loose rope signal.

[0068] In this embodiment, the length direction of the detection roller 110 is greater than the diameter of the rope 120. During the process of the drum winding or releasing the rope 120, the rope 120 can slide relative to the detection roller 110 along the axial direction of the detection roller 110, so as to match different rope outlet positions and avoid the rope 120 being pulled and damaged.

[0069] Optionally, as Figure 1 and Figure 2 shown, the loose rope detection device further includes a fixed bracket 150 and a movable frame 160. The fixed bracket 150 is fixedly arranged in the garage. The detection roller 110 is rotatably arranged on the movable frame 160.

[0070] The movable frame 160 is movably connected to the fixed bracket 150 along the moving direction. The moving direction intersects (e.g., is perpendicular to) the axial direction of the detection roller 110. The moving direction intersects (e.g., is perpendicular to) the extending direction of the rope 120. Specifically, the moving direction can be parallel to the horizontal plane. Thus, the structure of the loose rope detection device is simple.

[0071] Furthermore, as Figure 1 and Figure 2 shown, the fixed bracket 150 can be a sheet metal part. The fixed bracket 150 includes a fixing portion 151 and a connecting portion 152. The fixing portion 151 includes a first fixing wall 151a and a second fixing wall 151b. The first fixing wall 151a and the second fixing wall 151b are perpendicular. One end of the first fixing wall 151a is connected to one end of the second fixing wall 151b. The first fixing wall 151a is used to be fixedly connected to the garage through fasteners (such as bolts). The connecting portion 152 is located on the side of the first fixing wall 151a close to the second fixing wall 151b. The connecting portion 152 is connected to the second fixing wall 151b. Thus, the strength of the fixed bracket 150 is large.

[0072] Furthermore, as Figure 1 and Figure 2 shown, the connecting portion 152 includes a first connecting wall 152a, a second connecting wall 152b and a third connecting wall 152c. The second connecting wall 152b and the third connecting wall 152c are both parallel to the second fixing wall 151b. The second connecting wall 152b and the third connecting wall 152c are spaced apart. The first connecting wall 152a is located between the second connecting wall 152b and the third connecting wall 152c. The third connecting wall 152c is attached to the second fixing wall 151b. The third connecting wall 152c is detachably connected to the second fixing wall 151b through fasteners. One end of the first connecting wall 152a is connected to the third connecting wall 152c. The other end of the first connecting wall 152a is connected to the second connecting wall 152b. The first connecting wall 152a is perpendicular to the second connecting wall 152b. The movable frame 160 is connected to the second connecting wall 152b. Thus, the strength of the connecting portion 152 is large.

[0073] Furthermore, the first connecting wall 152a and the second connecting wall 152b are configured as a U-shaped structure. The third connecting wall 152c is located on the side of the first connecting wall 152a close to the second connecting wall 152b. The fixing portion 151 is configured as an L-shaped structure. Thus, the structure of the fixed bracket 150 is simple.

[0074] As Figure 1 and Figure 2As shown, the movable frame 160 includes a first movable wall 160a and a second movable wall 160b. One end of the first movable wall 160a is connected to the end of the second movable wall 160b. The first movable wall 160a is parallel to the first connecting wall 152a. The second movable wall 160b is parallel to the second connecting wall 152b. The detection roller 110 is located on the side of the second movable wall 160b away from the second connecting wall 152b. The detection roller 110 is connected to the first movable wall 160a. Thus, the strength of the movable frame 160 is high.

[0075] Furthermore, the first movable wall 160a and the second movable wall 160b are configured as a U-shaped structure. The detection roller 110 is located between the two first movable walls 160a. Thus, the structure of the movable frame 160 is simple.

[0076] Optionally, please refer to Figure 1 and Figure 2 , a sleeve 170 is provided on the second connecting wall 152b. The sleeve 170 has a mounting hole. A shaft 171 is provided on the second movable wall 160b. The shaft 171 is movably inserted through the mounting hole along the moving direction. At this time, the axial direction of the shaft 171 is parallel to the moving direction. Thus, the structure of the loose rope detection device is simple.

[0077] The edge of the outer peripheral surface of the detection roller 110 away from the shaft 171 is used to abut against the rope 120. The elastic member 130 is sleeved on the shaft 171. One end of the elastic member 130 abuts against the sleeve 170. The other end of the elastic member 130 abuts against the second movable wall 160b. The elastic member 130 is in a compressed state to apply a force to the detection roller 110 that can automatically return the detection roller 110 to the second position. Thus, the elastic member 130 can be prevented from leaving the fixed bracket 150 and the movable frame 160.

[0078] Optionally, as shown in Figure 1 and Figure 2 , the loose rope detection device further includes a positioning member 172. The positioning member 172 is connected to the shaft 171. The positioning member 172 is located on the side of the sleeve 170 away from the movable frame 160. Along the radial direction of the shaft 171, the positioning member 172 extends to the outside of the inner surface of the sleeve 170 away from the center of the sleeve 170. Specifically, the positioning member 172 is a cylindrical structure. The outer diameter of the positioning member 172 is greater than the inner diameter of the sleeve 170. In this way, the positioning member 172 can cooperate with the sleeve 170 to prevent the shaft 171 from moving away from the sleeve 170.

[0079] Optionally, as shown in Figure 2As shown, the fixing bracket 150 includes two fixing parts 151 and a connecting part 152. The two fixing parts 151 are arranged at intervals along the axial direction of the detection roller 110. A first connecting wall 152a is connected to one fixing part 151. The other first connecting wall 152a is connected to the other fixing part 151. The loose rope detection device includes two sleeves 170, two shafts 171, two positioning members 172 and two elastic members 130. The two sleeves 170 are arranged at intervals along the axial direction of the detection roller 110. The two shafts 171 are arranged at intervals along the axial direction of the detection roller 110. The two elastic members 130 are arranged at intervals along the axial direction of the detection roller 110. The two positioning members 172 are arranged at intervals along the axial direction of the detection roller 110. Thus, the movement of the detection roller 110 in the moving direction is smoother.

[0080] Optionally, the position sensor can be a travel switch. The loose rope detection device includes a detection circuit. The detection circuit has a travel switch. The travel switch is used to control the on / off of the detection circuit. In this way, it can be determined whether the rope 120 is loose or broken by the on / off of the detection circuit. When it is detected that the rope 120 is loose or broken, the operation of the garage is stopped.

[0081] Optionally, the loose rope detection device further includes a mounting bracket 173. The mounting bracket 173 can be detachably connected to the fixing bracket 150 through fasteners. The position sensor is connected to the mounting bracket 173. Along the axial direction of the detection roller 110, the position sensor is located between the two ends of the detection roller 110. Thus, the detection roller 110 located at the second position can be determined more accurately.

[0082] Second Embodiment

[0083] In the second embodiment, as Figure 3 and Figure 4 shown, the loose rope detection device further includes a guiding assembly. The guiding assembly further includes a slide rod frame 277, a slide rod 274 and a guiding wheel 275. The slide rod frame 277 can be detachably connected to the fixing bracket through fasteners. The slide rod 274 is connected to the slide rod frame 277. The axial direction of the slide rod 274 is parallel to the axial direction of the detection roller. The guiding wheel 275 is movably sleeved on the slide rod 274 along the axial direction of the slide rod 274. The guiding wheel 275 and the detection roller are separated.

[0084] Along the moving direction, the axis of the guide wheel 275 is located on the side away from the second fixed wall 251b of the axis of the detection roller. Along the extending direction of the rope, the axes of the guide wheel 275 and the detection roller are spaced apart. The guide wheel 275 and the detection roller are respectively located on the opposite sides of the rope. In this way, the outer peripheral surface of the guide wheel 275 is used to contact the side of the rope away from the detection roller, so that the rope presses the detection roller located at the first position. In this way, after the rope contacts the edge of the outer peripheral surface of the detection roller away from the axis, it extends to the edge of the guide wheel 275 close to the second fixed wall 251b. The non-relaxed or unbroken rope abuts against the outer peripheral surface of the detection roller to keep the detection roller in the first position. Thereby, the contact area between the rope and the detection roller can be increased, and further, whether the rope is slack or broken can be detected more accurately.

[0085] The guide wheel 275 is sleeved on the slide rod 274 movably along the axial direction of the slide rod 274. The rope can act on the guide wheel 275 to make the guide wheel 275 move along the axial direction of the slide rod 274 to match the current position of the rope and prevent the rope from being torn off. In addition, the guide wheel 275 has a small size and is convenient for processing.

[0086] It can be understood that in an embodiment not shown, the length dimension of the guide wheel along the axial direction of the guide wheel can be slightly larger than the length dimension of the detection roller. At this time, the rope can slide on the outer peripheral surface of the guide wheel along the axial direction of the slide rod to match the current position of the rope and prevent the rope from being torn off.

[0087] Optionally, as Figure 3 and Figure 4 shown, the slide rod holder 277 includes a first slide rod wall 277a and a second slide rod wall 277b. The second slide rod wall 277b is parallel to the second fixed wall 251b. The first slide rod wall 277a is parallel to the first connecting wall 252a. The second slide rod wall 277b is detachably connected to the second fixed wall 251b through a fastener. One end of the first slide rod wall 277a is connected to the end of the second slide rod wall 277b. The end of the slide rod 274 is connected to the other end of the first slide rod wall 277a. Thereby, the slide rod holder 277 has high strength.

[0088] Furthermore, the slide rod holder 277 is of a U-shaped structure. Thereby, the structure of the slide rod holder 277 is simple.

[0089] Optionally, as Figure 3 and Figure 4 shown, a guide groove 276 is formed by radially inwardly recessing the outer peripheral surface of the guide wheel 275. The rope is located in the guide groove 276. Thereby, the contact area between the guide wheel 275 and the rope can be increased.

[0090] Further, the cross-section of the guiding groove 276 (the cross-section is parallel to the axis and the radial direction of the guiding wheel 275) is V-shaped. Thus, the structure of the guiding wheel 275 is simple.

[0091] As Figure 3 and Figure 4 shown, along the axial direction of the sliding rod 274, the guiding wheel 275 moves between the first guiding position and the second guiding position.

[0092] Along the axial direction of the sliding rod 274, the position of the detecting roller is between the guiding wheel 275 at the first guiding position and the guiding wheel 275 at the second guiding position. Specifically, when the guiding wheel 275 is at the first guiding position, the position of the guiding wheel 275 in the axial direction of the sliding rod 274 is the first position. When the guiding wheel 275 is at the second guiding position, the position of the guiding wheel 275 in the axial direction of the sliding rod 274 is the second position. The position of the detecting roller in the axial direction of the sliding rod 274 is the third position. The third position is between the first position and the second position. Thus, the sliding rod 274 has sufficient positions for the guiding wheel 275 to move, thereby preventing the rope from being broken.

[0093] The second embodiment further includes a position sensor 240 having the same setting as that in the first embodiment. The other settings of the second embodiment are substantially the same as those of the first embodiment and will not be elaborated here.

[0094] Third Embodiment

[0095] As Figure 5 and Figure 6 shown, the movable frame 360 has two first movable walls 360a. The first movable wall 360a is rotatably connected to the fixed bracket 350 about the rotation axis AX. The fixed bracket 350 in the third embodiment may be different from the fixed bracket 150 in the first embodiment. The rotation axis AX is parallel to the axial direction of the detecting roller 310. The rotation axis AX is spaced apart from the detecting roller 310. Thus, the structure of the loose rope detecting device is simple.

[0096] One end of the elastic member 330 is connected to the fixed bracket 350. The other end of the elastic member 330 is connected to the first movable wall 360a. The elastic member 330 is in a stretched state. The edge of the outer peripheral surface of the detecting roller 310 close to the rotation axis AX is used to abut against the rope. Thus, the rope is located between the detecting roller 310 and the rotation axis AX. Thus, the structure of the loose rope detecting device is simple.

[0097] Optionally, the movable frame 360 further includes a contact wall 370. The contact wall 370 is located between two first movable walls 360a. The contact wall 370 is detachably connected to the first movable wall 360a by a fastener. The position sensor 340 is used to contact the contact wall 370, and then sense that the detection roller 310 moves to the second position. Thus, the strength of the movable frame 360 is high.

[0098] The other settings of the third embodiment are substantially the same as those of the first embodiment, and will not be elaborated here.

[0099] Fourth Embodiment

[0100] As Figure 7 shown, the fourth embodiment includes the guiding assembly of the second embodiment and the movable frame of the third embodiment.

[0101] Among them, the sliding rod frame 477 is detachably connected to the lower end of the fixed bracket 450 by a fastener. The axis of the guiding wheel 475 is on the side close to the rotation axis AX of the axis of the detection roller located at the first position. Along the extending direction of the rope (for example, the vertical direction), the axis of the guiding wheel 475 and the axis of the detection roller are spaced apart. The outer peripheral surface of the guiding wheel 475 is used to contact the rope, so that the rope presses the detection roller located at the first position. In this way, after the rope contacts the edge of the outer peripheral surface of the detection roller close to the rotation axis AX, it extends to the edge of the guiding wheel 475 away from the rotation axis AX. In this way, the rope that is not slack or broken abuts against the outer peripheral surface of the detection roller, so that the detection roller is held at the first position. Thus, the contact area between the rope and the detection roller can be increased, and further, it can be more accurately detected whether the rope is slack or broken.

[0102] The other settings of the fourth embodiment are substantially the same as those of the third embodiment, and will not be elaborated here.

[0103] The present utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for the purpose of exemplification and illustration, and are not intended to limit the present utility model within the scope of the described embodiments. In addition, those skilled in the art can understand that the present utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present utility model, and these variations and modifications all fall within the scope of protection required by the present utility model. The scope of protection of the present utility model is defined by the appended claims and their equivalent scope.

[0104] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as commonly understood by those of ordinary skill in the technical field of the present utility model. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. Terms such as "component" that appear herein can represent either a single part or a combination of multiple parts. Terms such as "mounted" and "arranged" that appear herein can represent either a component being directly attached to another component or a component being attached to another component through an intermediate member. Features described in one embodiment herein can be applied alone or in combination with other features to another embodiment, unless the feature is not applicable or otherwise stated in that other embodiment.

Claims

1. A loose rope detection device, characterized in that, The rope slack detection device includes: A detection roller, which is movably arranged between a first position and a second position. The outer peripheral surface of the detection roller is used to abut against the rope so as to be in the first position. The axial direction of the detection roller is used to intersect with the length direction of the rope. The length dimension of the detection roller is greater than the diameter of the rope, so that the rope can slide relative to the detection roller along the axial direction of the detection roller; An elastic member, which is connected to the detection roller to apply a force to the detection roller to move the detection roller towards the second position; A position sensor, which is arranged at a preset position to be able to collect the rope slack signal when the detection roller moves to the second position.

2. The rope slack detection device according to claim 1, characterized in that, The rope slack detection device further includes: A fixed bracket; A movable frame, on which the detection roller is rotatably arranged; The movable frame is movably connected to the fixed bracket along a moving direction intersecting with the axial direction of the detection roller, or The movable frame is rotatably connected to the fixed bracket around a rotation axis parallel to the axial direction of the detection roller.

3. The rope slack detection device according to claim 2, wherein The fixed bracket is provided with a sleeve, and the movable frame is provided with a shaft, and the shaft is movably inserted through the sleeve along the moving direction.

4. The loose rope detection device according to claim 3, characterized in that The elastic member is sleeved on the shaft, and the edge of the outer peripheral surface of the detection roller far from the shaft is used to abut against the rope.

5. The rope slack detection device according to claim 3, characterized in that The rope slack detection device further includes a positioning member, which is connected to the shaft. The positioning member is located on the side of the sleeve far from the movable frame. Along the radial direction of the shaft, the positioning member extends to the outside of the inner surface of the sleeve far from the center of the sleeve.

6. The rope slack detection device according to claim 2, wherein, The movable frame is rotatably connected to the fixed bracket around a rotation axis parallel to the axial direction of the detection roller, One end of the elastic member is connected to the fixed bracket, and the other end of the elastic member is connected to the movable frame. The edge of the outer peripheral surface of the detection roller close to the rotation axis is used to abut against the rope.

7. The rope slack detection device according to any one of claims 1 to 6, characterized in that, The rope slack detection device further includes: A slide rod frame; A slide rod, the axial direction of which is parallel to the axial direction of the detection roller, and the slide rod is connected to the slide rod frame; A guide wheel, which is sleeved on the slide rod. The guide wheel and the detection roller are respectively arranged on the opposite sides of the rope so that the rope presses the detection roller in the first position.

8. The rope slack detection device according to claim 7, characterized in that, The guide wheel is movably sleeved on the slide rod along the axial direction of the slide rod.

9. The rope slack detection device according to claim 8, wherein, The outer peripheral surface of the guide wheel is radially recessed inward to form a guide groove for arranging the rope.

10. The loose rope detection device according to claim 8, characterized in that, Along the axial direction of the slide rod, the guide wheel moves between a first guide position and a second guide position, Along the axial direction of the slide rod, the position where the detection roller is located is between the guide wheel in the first guide position and the guide wheel in the second guide position.

11. The loose rope detection device according to claim 1, wherein, The position sensor includes a travel switch.

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