An electrically powered recycling ramp system
The electric retraction ramp system controls the deployment and retraction of the pedals through clamping and braking components. Combined with airflow channels and a rotary drive mechanism, it solves the problem of bulky existing emergency ramp structures and achieves a compact and economical emergency ramp design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO CSR URBAN RAIL TRANSIT EQUIP
- Filing Date
- 2023-10-07
- Publication Date
- 2026-05-08
AI Technical Summary
Existing emergency ramps require additional buffer devices during retrieval, resulting in a bulky overall structure. Furthermore, the existing technology is complex and costly.
An electric retraction ramp system is adopted, which controls the unfolding and retraction of the pedal through clamping and braking components. Combined with airflow channels and a rotary drive device, it achieves the pedal's cushioning function and compact structure.
The emergency ramp features a compact overall structure, reduces production costs, simplifies the manufacturing process, and is easy to produce and promote.
Smart Images
Figure CN117508265B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of emergency ramp technology for trains, and more specifically to an electric retraction ramp system. Background Technology
[0002] In the event of an emergency, emergency ramps are often installed on both sides of the subway to facilitate the rapid evacuation of passengers. When the subway doors on both sides are opened, the emergency ramps, which are in a folded state, are unfolded to allow passengers to escape.
[0003] Existing emergency ramps typically retract via a rope connected to a footboard. A rotating reel gradually pulls the rope back, lifting the footboard and causing the other hinged footboards to fold sequentially. Additionally, the rope is pulled out simultaneously as the ramp unfolds. To prevent the ramp from hitting the ground during unfolding, existing emergency ramps often have additional cushioning devices to provide a buffer before landing, resulting in a bulky overall structure.
[0004] Therefore, there is a need for an electric retraction ramp system with a buffer function that helps to make the overall structure of emergency ramps more compact. Summary of the Invention
[0005] The main objective of this application is to provide an electric recycling ramp system, installed on a ramp, the ramp having several frames and several pedals, each pedal being rotatably mounted on a frame, and each pedal being hinged to the others. The electric recycling ramp system includes a housing, a rotating assembly, a braking component, and a clamping component for clamping or releasing a lead screw. The housing is fixedly mounted on the frame and has a cable outlet. The rotating assembly includes a lead screw, a first rotating component, a second rotating component, and a first rope. The lead screw is rotatably mounted on the housing. The first and second rotating components are both sleeved on the lead screw and threadedly connected to it. One end of the first rope is wound around the lead screw. On the first rotating component, the other end of the first rope passes through the outlet hole and is connected to a pedal. When the lead screw is fixed and the first rotating component rotates a predetermined number of times, the first rotating component is connected to the second rotating component. The braking assembly includes a braking component, which abuts against or separates from the second rotating component. When the ramp is deployed, the lead screw is clamped by the clamping assembly. When the pedal is flipped down and the first rope is pulled, the first rotating component rotates on the lead screw under the action of the first rope. At a certain moment, the first rotating component is connected to the second rotating component. The braking component abutting against the second rotating component will reduce the rotation speed of the second rotating component and cause the pedal to flip down at a reduced speed. This achieves the advantages of having a buffer function and helping to make the overall structure of the emergency ramp more compact.
[0006] Another objective of this application is to provide an electric recovery ramp system, wherein the end of the lead screw with the second rotating member has an airflow channel, and a plurality of internal expansion members are slidably disposed on the airflow channel. When the internal expansion members slide, the internal expansion members are placed in the airflow channel or extend out of the lead screw by a predetermined distance. The rotation assembly also includes a rotation drive device, which is located at the end of the lead screw away from the second rotating member. The shaft of the rotation drive device is connected to the lead screw. When the pedal is recovered, the internal expansion members inflate the first rotating member, and the first rope is rewound onto the first rotating member by the rotation drive device.
[0007] Another objective of this application is to provide an electric recycling ramp system, wherein the clamping assembly includes two grippers, a plurality of first guide rods, two connecting rods, a movable component, and a linear module. The linear module and the first guide rods are both mounted on the housing. The movable component is mounted on the track of the linear module and moves accordingly. Each gripper is slidably disposed on the first guide rod. The connecting rod is located between the gripper and the movable component, and both ends of the connecting rod are rotatably connected to the gripper and the movable component, respectively. The braking assembly further includes a first elastic component, a sliding component, a second guide rod, and a second elastic component. The second guide rod is fixedly mounted on the housing. The sliding component is slidably disposed on the second guide rod. Both ends of the second elastic component are connected to the housing and the sliding component, respectively. The end of the sliding component near the lead screw has a sliding cavity. The braking component is slidably disposed within the sliding cavity. The second elastic component is placed within the sliding cavity, and both ends of the second elastic component are rotatably connected to the braking component and the first guide rod. The sliding cavity bottom wall abuts against the sliding member. One end of the sliding member has an extension. The extension is located on the side of the second rotating member opposite to the first rotating member and abuts against the second rotating member. The electric recovery ramp system also includes a second rope, several rollers, and a second linear drive device. The second linear drive device is fixedly installed on the box body. Each roller is rotatably installed on the box body. The second rope is wound around each roller, and the two ends of the second rope are respectively connected to the brake member and the moving member. The push rod of the second linear drive device is connected to one of the rollers, so that when the gripper clamps the screw, the brake member abuts against the second rotating member, and when the gripper releases the screw, the brake member separates from the second rotating member. In addition, by setting the second linear drive device, a condition is provided for the second rope to reserve length. When the extension of the second elastic member presses against the second rotating member, the second rotating member and the first rotating member rotate at different speeds when the first rope is recovered, so that the second rotating member gradually rotates away from the first rotating member, so as to facilitate the subsequent reset of the first rotating member.
[0008] To achieve at least one of the above-mentioned inventive objectives, this application provides an electric recycling ramp system disposed on a ramp, the ramp having a plurality of frames and a plurality of pedals, one of the pedals being rotatably mounted on the frame, each of the pedals being hinged to each other, wherein the electric recycling ramp system includes:
[0009] A housing, the housing being fixedly mounted on the frame, the housing having a cable outlet hole; and
[0010] A rotating assembly includes a lead screw, a first rotating component, a second rotating component, and a first rope. The lead screw is rotatably mounted on the housing. The first and second rotating components are both sleeved on the lead screw and threadedly connected to it. One end of the first rope is wound around the first rotating component, and the other end passes through the cable outlet and is connected to a pedal. When the lead screw is fixed and the first rotating component rotates a predetermined number of times, the first rotating component connects to the second rotating component.
[0011] A braking assembly, the braking assembly including a braking element that abuts against or separates from the second rotating element; and
[0012] A clamping assembly for clamping or releasing the lead screw.
[0013] In one or more embodiments of this application, the end of the lead screw with the second rotating member has an airflow channel, and a plurality of inner expansion members are slidably disposed on the airflow channel. When the inner expansion members slide, the inner expansion members are placed in the airflow channel or extend out of the lead screw by a predetermined distance.
[0014] In one or more embodiments of this application, the electric recycling ramp system further includes an insertion assembly, which includes an insert and a first linear drive device. The insert is connected to a push rod of the first linear drive device. The first rotating member has a plurality of insertion holes, and the insert is directly opposite one of the insertion holes. When the first linear drive device is activated, the insert is inserted into the insertion hole or the insert is disengaged from the insertion hole.
[0015] In one or more embodiments of this application, the clamping assembly includes two jaws, a plurality of first guide rods, two connecting rods, a movable component, and a linear module. The linear module and the first guide rods are both mounted on the housing. The movable component is mounted on the track of the linear module and moves with it. Each jaw is slidably disposed on the first guide rod. The connecting rod is located between the jaw and the movable component, and both ends of the connecting rod are rotatably connected to the jaw and the movable component, respectively.
[0016] In one or more embodiments of this application, the braking assembly further includes a first elastic member, a sliding member, a second guide rod, and a second elastic member. The second guide rod is fixedly installed on the housing, and the sliding member is slidably disposed on the second guide rod. The two ends of the second elastic member are respectively connected to the housing and the sliding member. The end of the sliding member near the lead screw has a sliding cavity. The braking member is slidably disposed in the sliding cavity. The second elastic member is placed in the sliding cavity, and the two ends of the second elastic member abut against the bottom wall of the braking member and the sliding cavity, respectively. One end of the sliding member has an extension portion, which is located on the side of the second rotating member opposite to the first rotating member and abuts against the second rotating member.
[0017] In one or more embodiments of this application, the electric recycling ramp system further includes a second rope, a plurality of rollers, and a second linear drive device. The second linear drive device is fixedly mounted on the box body, each of the rollers is rotatably mounted on the box body, the second rope is wound around each of the rollers, and the two ends of the second rope are respectively connected to the brake and the moving member, and the push rod of the second linear drive device is connected to one of the rollers.
[0018] In one or more embodiments of this application, the moving member has a first limit switch on the side opposite to the lead screw, and the second rotating member has a second limit switch on the side opposite to the first rotating member. The first limit switch is electrically connected to the second linear drive device, and the second limit switch is electrically connected to the first linear drive device. When the moving member moves a predetermined distance toward the lead screw and causes the gripper to clamp the lead screw, the moving member contacts the first limit switch. When the second rotating member rotates away from the first rotating member, the second rotating member contacts the second limit switch.
[0019] In one or more embodiments of this application, the rotation assembly further includes a rotation drive device located at the end of the lead screw opposite to the second rotating member, and the rotation shaft of the rotation drive device is connected to the lead screw.
[0020] In one or more embodiments of this application, each of the grippers has an elastic portion.
[0021] In one or more embodiments of this application, the first rotating member has a recessed hole at one end near the second rotating member, and the hole wall of the recessed hole has a plurality of internal threads. The second rotating member has an extension portion at one end near the first rotating member, and the extension portion has a plurality of external threads. When the first rotating member moves a predetermined distance toward the second rotating member, the first rotating member and the second rotating member are threadedly connected, and the first rotating member drives the second rotating member to rotate.
[0022] In this embodiment, the electric recycling ramp system includes a housing, a rotating assembly, a braking component, and a clamping component for clamping or releasing a lead screw. The housing is fixedly mounted on a frame and has a cable outlet. The rotating assembly includes a lead screw, a first rotating member, a second rotating member, and a first rope. The lead screw is rotatably mounted on the housing. The first and second rotating members are both sleeved on the lead screw and threadedly connected to it. One end of the first rope is wound around the first rotating member, and the other end of the first rope passes through the cable outlet and is connected to a pedal. When the lead screw is fixed and the first rotating member is engaged with the second rotating member, the system can be activated by clamping or releasing a lead screw. After a predetermined number of rotations, the first rotating component connects with the second rotating component. The braking assembly includes a braking component that abuts against or separates from the second rotating component. When the ramp is deployed, the screw is clamped by the clamping assembly. When the pedal is flipped down and pulls the first rope, the first rotating component rotates on the screw under the action of the first rope. At a certain moment, the first rotating component connects with the second rotating component. The braking component that abuts against the second rotating component will reduce the rotation speed of the second rotating component and cause the pedal to flip down at a reduced speed. This achieves the advantage of having a buffer function and helping to make the overall structure of the emergency ramp more compact. Attached Figure Description
[0023] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:
[0024] Figure 1 The figure shows a schematic diagram of an electric recycling ramp system installed on a ramp according to an embodiment of this application;
[0025] Figure 2 The figure shows a schematic diagram of an electric recycling ramp system;
[0026] Figure 3 The diagram shows a schematic of the clamping assembly. Detailed Implementation
[0027] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.
[0028] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0029] While ordinal numbers such as "first," "second," etc., will be used to describe various components, this does not limit which components are used. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.
[0031] Application Overview
[0032] In existing emergency ramps, the recovery device only provides the function of the recovery ramp. The deployment of the emergency ramp requires an additional buffer device, resulting in a bulky overall structure.
[0033] Based on the above-mentioned technical problems, this application proposes an electric recycling ramp system. The electric recycling ramp system has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the electric recycling ramp system provided by this application is easy to produce and has low cost, which is more conducive to controlling production costs and further facilitates product promotion and use.
[0034] Indicative electric recycling ramp system
[0035] refer to Figures 1 to 3 According to a preferred embodiment of the present invention, an electric recycling ramp system is installed on a ramp, such as... Figure 1As shown, the ramp has several frames 90 and several pedals 91. Each pedal 91 is rotatably mounted on a frame 90. Each pedal 91 is hinged to the others. In addition, to ensure that each pedal 91 can be unfolded after one pedal 91 is activated, the ramp also has several connectors 92. The connectors 92 are hinged to each other, and one connector 92 is hinged to the frame 90. Each pedal 91 has a connector 92 in the middle section that is hinged to the corresponding pedal 91. Due to the connectors 92, when one pedal 91 connected to the frame 90 is flipped, the other pedals 91 will follow the movement and unfold or retract.
[0036] like Figure 2 As shown, the electric recycling ramp system includes a housing 10 and a rotating assembly 20.
[0037] Specifically, such as Figure 2 As shown, the box 10 is fixedly installed on the frame 90 by welding or bolt connection, and the box 10 has a cable outlet hole 101.
[0038] In addition, such as Figure 2 As shown, the rotating assembly 20 includes a lead screw 201, a first rotating component 202, a second rotating component 203, and a first rope 204. The lead screw 201 is rotatably mounted on the box 10. The first rotating component 202 and the second rotating component 203 are both sleeved on the lead screw 201 and threadedly connected to the lead screw 201. One end of the first rope 204 is wound around the first rotating component 202, and the other end of the first rope 204 passes through the outlet hole 101 and is connected to a pedal 91. When the lead screw 201 is fixed and the first rotating component 202 rotates a predetermined number of times, the first rotating component 202 is connected to the second rotating component 203.
[0039] Specifically, such as Figure 2 As shown, the first rotating member 202 has a recessed hole 2021 at one end near the second rotating member 203. The wall of the recessed hole 2021 has several internal threads. The second rotating member 203 has an extension portion 2031 at one end near the first rotating member 202. The extension portion 2031 has several external threads. When the first rotating member 202 moves a predetermined distance toward the second rotating member 203, the first rotating member 202 and the second rotating member 203 are threadedly connected. After the end of the extension portion 2031 contacts the bottom wall of the recessed hole 2021, the first rotating member 202 drives the second rotating member 203 to rotate.
[0040] Furthermore, to allow the lead screw 201 to be selectively fixed, such as... Figure 2As shown, the electric recycling ramp system includes a clamping assembly 30 for clamping or releasing the lead screw 201. When the clamping assembly 30 clamps the lead screw 201, the lead screw 201 is fixed in place. When the clamping assembly 30 separates from the lead screw 201, the lead screw 201 can rotate.
[0041] In addition, to reduce the descent speed of the pedal 91 after it flips to a predetermined angle, the electric recovery ramp system provides a buffering effect on the ramp, such as... Figure 2 As shown, the electric recycling ramp system also includes a braking assembly 40, which includes a braking element 401. The braking element 401 abuts against or separates from the second rotating element 203. When the braking element 401 abuts against the second rotating element 203, the rotation of the second rotating element 203 in the circumferential direction is resisted and the rotation speed is reduced.
[0042] It should be noted that when the ramp is unfolded, the clamping assembly 30 clamps the lead screw 201, at which point the lead screw 201 remains stationary. As the ramp unfolds, the first rope 204 connected to the pedal 91 is gradually pulled out from the cable outlet 101. During the pulling out of the first rope 204, the first rotating member 202 rotates on the lead screw 201. Since the lead screw 201 remains stationary at this time, the first rotating member 202 moves towards the second rotating member 203 while rotating circumferentially. At a certain moment, the first rotating member 202 and the second rotating member... When the threaded connection is 203 and the end of the inserted part 2031 abuts against the bottom wall of the recess 2021, the second rotating member 203 rotates along with the first rotating member 202. By causing the brake member 401 to abut against the second rotating member 203 and reducing the rotation speed of the second rotating member 203, the speed at which the first rope 204 extends is slowed down, and the speed at which the ramp unfolds is reduced. This achieves the technical objective of providing a buffer for the ramp unfolding by having the ramp recovery device. Compared to the prior art which additionally sets a buffer device, this invention has the advantage of having a buffer function, which helps to make the overall structure of the emergency ramp more compact.
[0043] It should also be noted that, when retrieving the ramp, the first rotating member 202 needs to rotate in the opposite direction to rewind the first rope 204 extending from the outlet hole 101 onto the first rotating member 202. During the winding process, the first rope 204 drives the pedal 91 to flip upwards and retract the ramp. To achieve the above technical objective, as follows... Figure 2As shown, the rotation assembly 20 also includes a rotation drive device 205, which is a rotary motor. Since the main driving component is a rotary motor, the present invention is named an electric recycling ramp system. The rotation drive device 205 is located at the end of the lead screw 201 that is away from the second rotating component 203, and the rotating shaft of the rotation drive device 205 is connected to the lead screw 201.
[0044] It should be noted that when the first rope 204 is retrieved, the clamping assembly 30 of the gripper 301 separates from the lead screw 201, the rotary drive device 205 is activated and drives the lead screw 201 to rotate in the opposite direction by a predetermined angle, and causes the first rope 204 to be wound around the first rotating member 202.
[0045] However, during this process, since the lead screw 201 and the first rotating member 202 are not fixedly connected, when the lead screw 201 rotates, the first rotating member 202, which is subjected to the action of the first rope 204, has difficulty rotating along with it and winding the first rope 204 onto the first rotating member 202. Therefore, as follows... Figure 2 As shown, the lead screw 201 has an airflow channel 2011 at one end where the second rotating member 203 is located. In this embodiment, the airflow channel 2011 includes a countersunk hole and several external through holes (not shown in the figure) arranged vertically with the countersunk hole. Several internal expansion members 2012 are slidably disposed on the airflow channel 2011. More specifically, an internal expansion member 2012 is slidably disposed in each of the external through holes. The airflow channel 2011 is connected to an external air source. When the internal expansion member 2012 slides, the internal expansion member 2012 is placed in the airflow channel 2011 or extends out of the lead screw 201 by a predetermined distance. It should be noted that, under normal conditions, the inner expansion member 2012 is placed inside the airflow channel 2011 by a spring. When the ramp is retracted, air is injected into the airflow channel 2011, and the gas gives each inner expansion member 2012 a thrust, pushing the inner expansion member 2012 out of the outer through hole and pressing the first rotating member 202, thereby connecting the lead screw 201 with the first rotating member 202. When the lead screw 201 rotates, the first rotating member 202 rotates accordingly, thereby winding the first rope 204 onto the first rotating member 202.
[0046] It should be noted that although the first rope 204 is retracted by rotating the lead screw 201, there are two problems: First, during the retraction of the first rope 204, the brake 401 is still in contact with the second rotating member 203; Second, the first rotating member 202 is not reset.
[0047] To ensure that the braking element 401 abuts against the second rotating element 203 when the ramp is deployed, and that the braking element 401 separates from the second rotating element 203 when the ramp is retracted. Specifically, as follows: Figure 2 and Figure 3 As shown, the clamping assembly 30 includes two clamps 301, a plurality of first guide rods 302, two connecting rods 303, a moving part 304, and a straight module 305. The straight module 305 and the first guide rods 302 are both mounted on the housing 10. The moving part 304 is mounted on the track of the straight module 305 and moves with it. Each clamp 301 is slidably disposed on the first guide rod 302. The connecting rod 303 is located between the clamp 301 and the moving part 304, and both ends of the connecting rod 303 are rotatably connected to the clamp 301 and the moving part 304, respectively.
[0048] In addition, such as Figure 2 As shown, the braking assembly 40 further includes a sliding member 402 and a second elastic member 403. The sliding member 402 has a sliding cavity 4021 at one end near the lead screw 201. The braking member 401 is slidably disposed in the sliding cavity 4021. The second elastic member 403 is placed in the sliding cavity 4021, and both ends of the second elastic member 403 abut against the bottom wall of the braking member 401 and the sliding cavity 4021, respectively.
[0049] In addition, such as Figure 2 As shown, the electric recycling ramp system further includes a second rope 501, several rollers 502, and a second linear drive device 503. The second linear drive device 503 is fixedly mounted on the housing 10. Each roller 502 is rotatably mounted on the housing 10. The second rope 501 is wound around each roller 502, and both ends of the second rope 501 are respectively connected to the brake member 401 and the moving member 304. The push rod of the second linear drive device 503 is connected to one of the rollers 502. In this embodiment, there are three rollers 502. The roller 502 connected to the second linear drive device 503 has one roller 502 on each side, and the roller 502 connected to the second linear drive device 503 is located on the outer side of the second rope 501. The other two rollers 502 are located on the inner side of the second rope 501.
[0050] It should be noted that when the gripper 301 separates from the lead screw 201, that is, when the moving member 304 approaches the lead screw 201, the moving member 304 provides a pulling force to the second rope 501, causing the second elastic member 403 to be in a compressed state, and the braking member 401 to move away from the second rotating member 203; before the ramp is ready to unfold, the linear module 305 drives the moving member 304 to move a predetermined distance away from the lead screw 201, then the two grippers 301 move through the connecting rod 303 and clamp the lead screw 201. At this time, the second rope 501, which was originally tightened by the moving member 304, is released a certain length as the moving member 304 moves. At this time, the second elastic member 403, which was previously in a compressed state, returns to its state before deformation and pushes the braking member 401 against the second rotating member 203.
[0051] It should also be noted that, during the unfolding process, after the first rotating component 202 and the second rotating component 203 are connected, the first rotating component 202 and the second rotating component 203 still need to move a predetermined distance along the lead screw 201 in the direction away from the linear module 305. To ensure that the braking component 401 always abuts against the second rotating component 203 during its movement, such as... Figure 2 As shown, one end of the sliding member 402 has an extension 4022, which is located on the side of the second rotating member 203 away from the first rotating member 202 and abuts against the second rotating member 203; in addition, the braking assembly 40 also includes a first elastic member 404 and a second guide rod 405. The second guide rod 405 is fixedly installed on the housing 10, and the sliding member 402 is slidably disposed on the second guide rod 405. The two ends of the second elastic member 403 are respectively connected to the housing 10 and the sliding member 402.
[0052] It should be noted that, since the extension 4022 abuts against the second rotating member 203, when the second rotating member 203 moves, the extension 4022 is forced to drive the sliding member 402 to move along the second guide rod 405 in the same direction and compress the first elastic member 404. Since the sliding member 402 moves synchronously, the braking member 401 is always abutting against the second rotating member 203 during the movement of the second rotating member 203.
[0053] It should also be noted that when the first rope 204 is retracted, that is, when the inner expansion member 2012 tightens the first rotating member 202 so that the first rotating member 202 rotates along with the lead screw 201, due to the elastic force of the first elastic member 404, the extension 4022 presses tightly against the second rotating member 203. Since the lead screw 201 is partially threaded to the second rotating member 203, the rotation speed of the second rotating member 203 is much lower than that of the first rotating member 202 during the rotation of the lead screw 201. As the first rotating member 202 rotates, the second rotating member 203 is gradually rotated away from the first rotating member 202, thus separating the second rotating member 203 from the first rotating member 202.
[0054] Furthermore, the second rope 501 may face the problem of insufficient rope length during the movement of the sliding member 402. Therefore, a second linear drive device 503 is provided. When the gripper 301 is separated from the lead screw 201, the distance between the roller 502 connected to the second linear drive device 503 and the lead screw 201 is smaller than the distance between the other two rollers 502 and the lead screw 201. That is, in the initial state, the brake member 401 is separated from the second rotating member 203, and the second rope 501 is in a taut and bow-shaped state. When the moving member 3... When the screw 201 is moved away from the screw 201 and the gripper 301 clamps the screw 201, the second linear drive device 503 is activated, and the roller 502 connected to the second linear drive device 503 moves a predetermined distance away from the screw 201. The second rope 501, which was originally taut and had an arc shape, is released a certain length. This length is used by the slider 402 as it moves with the second rotating member 203, thus avoiding motion interference between the second rope 501 and the slider 402 or insufficient rope length.
[0055] Furthermore, to solve the aforementioned technical problem of resetting the first rotating component 202, such as... Figure 2 As shown, the electric recycling ramp system also includes an insertion assembly 60, which includes an insert 601 and a first linear drive device 602. The insert 601 is connected to the push rod of the first linear drive device 602. The first rotating member 202 has a plurality of insertion holes 2022. The insert 601 is directly opposite one of the insertion holes 2022. When the first linear drive device 602 is activated, the insert 601 is inserted into the insertion hole 2022 or the insert 601 is disengaged from the insertion hole 2022.
[0056] It should be noted that when the first rope 204 is wound around the first rotating member 202 again, and the second rotating member 203 is disengaged from the first rotating member 202, the rotary drive device 205 stops rotating, and the first linear drive device 602 actuates and causes the insert 601 to be inserted into one of the insertion holes 2022 of the first rotating member 202. When the insert 601 is inserted into one of the insertion holes 2022, and the airflow channel 2011 draws air and causes each of the inner expansion members 2012 to separate from the first rotating member 202, the rotary drive device 205 rotates again, and the first rotating member 202 moves along the lead screw 201 in a direction away from the second rotating member 203 to achieve a reset.
[0057] Furthermore, such as Figure 2 As shown, the moving member 304 has a first limit switch 504 on the side away from the lead screw 201, and the second rotating member 203 has a second limit switch 505 on the side away from the first rotating member 202. The first limit switch 504 is electrically connected to the second linear drive device 503, and the second limit switch 505 is electrically connected to the first linear drive device 602. When the moving member 304 moves a predetermined distance toward the lead screw 201 and the gripper 301 clamps the lead screw 201, the moving member 304 contacts the first limit switch 504, and the roller 502 connected to the second linear drive device 503 moves a predetermined distance away from the lead screw 201. When the second rotating member 203 rotates away from the first rotating member 202, the second rotating member 203 contacts the second limit switch 505, and the insert 601 is inserted into a socket 2022 of the first rotating member 202.
[0058] Furthermore, to reduce wear at the contact point between the gripper 301 and the lead screw 201, such as... Figure 3 As shown, each of the grippers 301 has an elastic part 3011, which is preferably an elastic rubber pad. When the gripper 301 clamps the lead screw 201, the elastic part 3011 deforms and embeds into the spiral groove of the lead screw 201.
[0059] In summary, the electric recovery ramp system based on the embodiments of this application is explained, which provides the electric recovery ramp system with a buffer function, and helps to make the overall structure of the emergency ramp more compact, etc.
[0060] It is worth mentioning that, in this embodiment, the electric recycling ramp system has a simple structure, does not involve complex manufacturing processes or expensive materials, and is highly economical. At the same time, for manufacturers, the electric recycling ramp system provided in this application is easy to produce and inexpensive, which is more conducive to controlling production costs and further facilitates product promotion and use.
[0061] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from these principles.
Claims
1. An electric recycling ramp system, disposed on a ramp, the ramp having a plurality of frames and a plurality of pedals, one of the pedals being rotatably mounted on the frame, each of the pedals being hinged to each other, characterized in that: The electric recycling ramp system includes A housing, the housing being fixedly mounted on the frame, the housing having a cable outlet hole; and A rotating assembly includes a lead screw, a first rotating component, a second rotating component, and a first rope. The lead screw is rotatably mounted on the housing. The first and second rotating components are both sleeved on the lead screw and threadedly connected to it. One end of the first rope is wound around the first rotating component, and the other end passes through the cable outlet and is connected to a pedal. When the lead screw is fixed and the first rotating component rotates a predetermined number of times, the first rotating component connects to the second rotating component. A braking assembly, the braking assembly including a braking element that abuts against or separates from the second rotating element; and A clamping assembly for clamping or releasing the lead screw.
2. The electric recycling ramp system according to claim 1, characterized in that: The lead screw has an airflow channel at one end where the second rotating member is located. Several inner expansion members are slidably arranged on the airflow channel. When the inner expansion members slide, they are placed inside the airflow channel or extend out of the lead screw by a predetermined distance.
3. The electric recycling ramp system according to claim 2, characterized in that: The electric recycling ramp system also includes an insertion assembly, which includes an insert and a first linear drive device. The insert is connected to a push rod of the first linear drive device. The first rotating member has a plurality of holes, and the insert is positioned opposite one of the holes. When the first linear drive device is activated, the insert is inserted into the hole or disengaged from the hole.
4. The electric recycling ramp system according to claim 3, characterized in that: The clamping assembly includes two jaws, several first guide rods, two connecting rods, a movable component, and a linear module. The linear module and the first guide rods are both mounted on the housing. The movable component is mounted on the track of the linear module and moves with it. Each jaw is slidably disposed on the first guide rod. The connecting rod is located between the jaw and the movable component, and both ends of the connecting rod are rotatably connected to the jaw and the movable component, respectively.
5. The electric recycling ramp system according to claim 4, characterized in that: The braking assembly further includes a first elastic element, a sliding element, a second guide rod, and a second elastic element. The second guide rod is fixedly installed on the housing. The sliding element is slidably disposed on the second guide rod. The two ends of the second elastic element are respectively connected to the housing and the sliding element. The end of the sliding element near the lead screw has a sliding cavity. The braking element is slidably disposed in the sliding cavity. The second elastic element is placed in the sliding cavity, and the two ends of the second elastic element abut against the bottom wall of the braking element and the sliding cavity, respectively. One end of the sliding element has an extension portion. The extension portion is located on the side of the second rotating element opposite to the first rotating element and abuts against the second rotating element.
6. The electric recycling ramp system according to claim 5, characterized in that: The electric recycling ramp system also includes a second rope, several rollers, and a second linear drive device. The second linear drive device is fixedly installed on the box, each roller is rotatably installed on the box, the second rope is wound around each roller, and the two ends of the second rope are respectively connected to the brake and the moving part. The push rod of the second linear drive device is connected to one of the rollers.
7. The electric recycling ramp system according to claim 6, characterized in that: The moving member has a first limit switch on the side opposite to the lead screw, and the second rotating member has a second limit switch on the side opposite to the first rotating member. The first limit switch is electrically connected to the second linear drive device, and the second limit switch is electrically connected to the first linear drive device. When the moving member moves a predetermined distance toward the lead screw and causes the gripper to clamp the lead screw, the moving member contacts the first limit switch. When the second rotating member rotates away from the first rotating member, the second rotating member contacts the second limit switch.
8. The electric recycling ramp system according to any one of claims 4 to 7, characterized in that: The rotation assembly further includes a rotation drive device located at the end of the lead screw away from the second rotating member, and the shaft of the rotation drive device is connected to the lead screw.
9. The electric recycling ramp system according to claim 8, characterized in that: Each of the grippers has an elastic portion.
10. The electric recycling ramp system according to claim 9, characterized in that: The first rotating member has a recessed hole at one end near the second rotating member, and the hole wall has several internal threads. The second rotating member has an extension portion at one end near the first rotating member, and the extension portion has several external threads. When the first rotating member moves a predetermined distance toward the second rotating member, the first rotating member and the second rotating member are threadedly connected, and the first rotating member drives the second rotating member to rotate.
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