Deceleration control method of sliding bucket device, scaling ladder and emergency equipment

Abstract

The invention belongs to the technical field of emergency equipment, and particularly relates to a speed reduction control method of a sliding bucket device, an aerial ladder and emergency equipment, and the speed reduction control method of the sliding bucket device comprises the following steps: in the process that the sliding bucket device moves along a sliding part, obtaining the distance between the sliding bucket device and a movement tail end in real time; under the condition that the distance between the sliding hopper device and the moving tail end is smaller than or equal to a first preset interval, the sliding hopper device is controlled to execute first-stage speed reduction operation; under the condition that the distance between the sliding hopper device and the moving tail end is smaller than or equal to a second preset interval, the sliding hopper device is controlled to execute second-stage speed reduction operation; wherein the first preset interval is larger than the second preset interval, and the interval between the preset position and the moving tail end is the second preset interval. By adopting the speed reduction control method of the sliding bucket device, the position of the sliding bucket device can be accurately determined, and the speed of the sliding bucket device is accurately and effectively reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of emergency equipment, and in particular relates to a deceleration control method of a bucket device, a ladder and emergency equipment. Background Art

[0002] High-meter-high ladder fire trucks have a high lifting height and limited ladder frame carrying capacity, which is not conducive to multiple people climbing at the same time; using the ladder top working bucket to directly telescope up and down for rescue has a slow movement speed and low rescue efficiency. Therefore, high-meter-high ladder fire trucks are mostly equipped with a fast sliding bucket to transport personnel up and down. The sliding bucket device is mainly composed of ladder frame guide rails, winches, rope mechanisms, sliding bucket frames, brake mechanisms, and roller mechanisms. The sliding bucket device is placed on the guide rail of the ladder frame upper chord. When in use, it can be driven by a wire rope through multiple rows of parallel rollers to move relative to the direction of the ladder frame. The emergence of the sliding bucket device can improve the efficiency and speed of high-altitude multi-person rescue, which is equivalent to setting up an "air elevator" between the ground and the fire scene.

[0003] The existing bucket device has inaccurate deceleration judgment during the stopping process. The deceleration of the bucket device before moving to the top is determined by calculating the elongation of the drive wire rope and the extension and contraction of the ladder frame. Both of the above data are affected by errors and there is a risk of inaccurate judgment. When the bucket device does not effectively decelerate, the bucket device will directly hit the mechanical limit at the top, which may damage the bucket device and cause an accident. Summary of the invention

[0004] The object of the present invention is to provide a deceleration control method, a ladder and an emergency device for a sliding bucket device, so as to achieve accurate detection of the position of the sliding bucket device and to accurately and effectively reduce the speed of the sliding bucket device.

[0005] In order to achieve the above object, the present invention provides a deceleration control method for a bucket device, wherein the bucket device and a sliding member move relative to each other, and a first position detection component is provided on the sliding member for detecting whether the bucket device reaches a preset position. The deceleration control method for the bucket device comprises the following steps:

[0006] When the sliding bucket device moves along the sliding member, the distance between the sliding bucket device and the moving end is obtained in real time;

[0007] When the distance between the sliding bucket device and the moving end is less than or equal to the first preset interval, the sliding bucket device is controlled to perform a first-stage deceleration operation;

[0008] When the distance between the sliding bucket device and the moving end is less than or equal to the second preset interval, controlling the sliding bucket device to perform a secondary deceleration operation;

[0009] The first preset interval is greater than the second preset interval, and the interval between the preset position and the movement end is the second preset interval.

[0010] In some embodiments, the sliding bucket device includes a second position detection component for determining the real-time position of the sliding bucket device. When the sliding bucket device moves along the sliding member, real-time determination of the interval between the sliding bucket device and the moving end includes the following steps: obtaining a real-time position signal of the sliding bucket device; determining the sliding bucket space coordinates of the sliding bucket device based on the real-time position signal and a preset corresponding relationship; and determining the distance between the sliding bucket device and the moving end based on the sliding bucket space coordinates.

[0011] In some embodiments, the sliding member extends in the height direction, and determining the distance between the sliding bucket device and the moving end according to the sliding bucket spatial coordinates includes the following steps: determining the first spatial coordinates of the top end of the sliding member and the second spatial coordinates of the bottom end of the sliding member; when the sliding bucket device moves upward, determining the distance between the sliding bucket device and the moving end according to the sliding bucket spatial coordinates and the first spatial coordinates; when the sliding bucket device moves downward, determining the distance between the sliding bucket device and the moving end according to the sliding bucket spatial coordinates and the second spatial coordinates.

[0012] In some embodiments, the first position detection component includes a first position detection switch and a second position detection switch arranged at intervals, and the deceleration control method also includes the following steps: when the sliding bucket device moves upward, when the sliding bucket device touches the first position detection switch, it is determined that the sliding bucket device has reached the first preset position; when the sliding bucket device moves downward, when the sliding bucket device touches the second position detection switch, it is determined that the sliding bucket device has reached the second preset position; wherein the first position detection switch is located above the second position detection switch.

[0013] In some embodiments, an in-place detection switch is provided at the top and bottom ends of the sliding member, and an in-place detection member is also provided on the side of the sliding bucket device facing the sliding member. The deceleration control method also includes the following steps: when the in-place detection switch detects the in-place detection member, the sliding bucket device is controlled to stop moving.

[0014] In some embodiments, the deceleration control method also includes: controlling the slide device to move at a first speed after performing a first deceleration operation and before performing a second deceleration operation; controlling the slide device to move at a second speed after performing a second deceleration operation and before the slide device stops moving; wherein the first speed is greater than the second speed.

[0015] In some embodiments, when the in-place detection switch detects the in-place detection member, controlling the sliding bucket device to stop moving includes the following steps: when the sliding bucket device is in the deceleration process, adjusting the driving force of the sliding bucket device so that the sliding bucket device stops moving at the movement end of the sliding member.

[0016] In some embodiments, a clamping assembly is further provided at the top of the sliding member, and the deceleration control method further includes the following steps: after the sliding bucket device stops moving at the moving end of the sliding member, controlling the clamping assembly and the sliding bucket device to limit and lock.

[0017] A second aspect of the present invention provides a ladder, comprising:

[0018] Slides;

[0019] The sliding bucket device moves relative to the sliding member, and the sliding member is provided with a first position detection component for detecting whether the sliding bucket device reaches a preset position;

[0020] The controller is configured to execute the above-mentioned deceleration control method of the bucket device.

[0021] In some embodiments, the aerial ladder further includes a second position detection component that is communicatively connected to the controller and is used to determine the real-time position of the bucket assembly.

[0022] In some embodiments, the first position detection component includes a first position detection switch and a second position detection switch arranged at intervals, the first position detection switch is used to determine whether the sliding bucket device has reached a first preset position, and the second position detection switch is used to determine whether the sliding bucket device has reached a second preset position, and the first position detection switch is located above the second position detection switch.

[0023] In some embodiments, the top and bottom ends of the sliding member are both provided with an in-position detection switch that is communicatively connected to the controller, and the side of the sliding bucket device facing the sliding member is also provided with an in-position detection member, and the in-position detection switch is used to detect whether the sliding bucket device has completed movement.

[0024] In some embodiments, a clamping assembly is further provided at the top end of the sliding member, and the clamping assembly is used to limit and lock the clamping assembly and the sliding bucket device.

[0025] In some embodiments, the sliding bucket device also includes a braking mechanism and a lifting mechanism, and the braking mechanism includes: a mounting frame; a brake shaft, rotatably disposed on the mounting frame and drivingly connected to the lifting mechanism; a brake member, installed on the outer periphery of the brake shaft and used to perform a braking operation after the brake shaft rotates; an emergency component, drivingly connected to the brake shaft and used to drive the brake shaft to rotate in an unexpected state, wherein the unexpected state is a state in which the lifting mechanism is disconnected from the brake shaft.

[0026] In some embodiments, the emergency component includes a connecting crank and an elastic member, the first end of the connecting crank is sleeved on the outer periphery of the brake shaft and is coaxially driven with the brake shaft, and the second end of the connecting crank is pivotally connected to the elastic member; in an unexpected state, the elastic tensile force of the elastic member drives the connecting crank to rotate, so that the brake mechanism enters a braking state, and the brake member and the sliding member frictionally brake.

[0027] In some embodiments, the sliding bucket device also includes: a vertical plate support frame, which extends vertically and is close to one side of the sliding member; a bottom plate support frame, a first end of which is rotatably connected to the vertical plate support frame; a telescopic assembly, the two ends of the telescopic assembly are respectively hinged to the vertical plate support frame and the bottom plate support frame, the telescopic assembly has an axially downward driving force and can help the second end of the bottom plate support frame swing toward or away from the sliding member.

[0028] In some embodiments, the sliding bucket device also includes: a fixed ladder, one end of which is connected to the vertical plate support frame, and the other end of the fixed ladder extends upward in the direction of the sliding member and can abut against the top limit of the sliding member, and the fixed ladder is used to connect the accommodating space in the sliding bucket device with the external emergency area.

[0029] A third aspect of the present invention provides an emergency device, comprising the above-mentioned ladder.

[0030] In the above technical solution, when the sliding bucket device moves upward or downward relative to the sliding member, the distance between the sliding bucket device and the moving end can be obtained in real time, and when the distance between the sliding bucket device and the moving end is less than the first preset interval, the sliding bucket device is controlled to perform a first-stage deceleration operation, so that the sliding bucket device moving at high speed decelerates in advance when the movement is about to end, to prevent a collision. Moreover, when the distance between the sliding bucket device and the moving end is less than or equal to the second preset interval, the sliding bucket device is controlled to perform a second-stage deceleration operation. By setting a first position detection component on the sliding member, the position of the sliding bucket device can be more accurately identified. After the sliding bucket device is detected, the second-stage deceleration operation is performed to prevent the sliding bucket device from colliding violently with the limiting mechanism due to untimely deceleration operation, so as to protect the sliding bucket device and the limiting mechanism and prevent safety accidents.

[0031] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative work. In the accompanying drawings:

[0033] Figure 1 A schematic diagram of the structure of a ladder provided according to an embodiment of the present invention;

[0034] Figure 2 A schematic diagram of the structure of a sliding bucket device according to an embodiment of the present invention;

[0035] Figure 3 It is a schematic structural diagram of a brake mechanism provided according to an embodiment of the present invention.

[0036] Description of Reference Numerals

[0037] 100 Slide bucket device

[0038] 10 In-place detection parts

[0039] 20 Braking mechanism

[0040] 21 Mounting bracket

[0041] 22 Brake shaft

[0042] 23 Brake parts

[0043] 24 Emergency Kit

[0044] 241 Connecting crank

[0045] 242 Elastic parts

[0046] 30 Vertical plate support frame

[0047] 40 Base plate support

[0048] 50 Telescopic components

[0049] 60 Fixed ladder DETAILED DESCRIPTION

[0050] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0051] The deceleration control method, ladder and emergency equipment of the bucket device according to the present invention are described below with reference to the accompanying drawings. Figure 1 As shown, it is a schematic diagram of the structure of the ladder provided according to an embodiment of the present invention; Figure 2 , which is a schematic structural diagram of a sliding bucket device 100 provided according to an embodiment of the present invention.

[0052] The bucket device 100 provided by the present invention moves relative to a sliding member (not shown in the figure), and a first position detection component (not shown in the figure) is provided on the bucket device 100 for detecting whether the bucket device 100 reaches a preset position. The deceleration control method of the bucket device includes the following steps:

[0053] S102, obtaining in real time the distance between the sliding bucket device 100 and the moving end during the movement of the sliding bucket device 100 along the sliding member;

[0054] S104, when the distance between the sliding bucket device 100 and the moving end is less than or equal to the first preset interval, controlling the sliding bucket device 100 to perform a first-stage deceleration operation;

[0055] S106, when the distance between the sliding bucket device 100 and the moving end is less than or equal to the second preset interval, the sliding bucket device 100 is controlled to perform a secondary deceleration operation.

[0056] The first preset interval is greater than the second preset interval, and the interval between the preset position and the movement end is the second preset interval.

[0057] During the relative movement of the bucket device 100 on the sliding member, after the bucket device 100 is accelerated to the standard speed, the movement speed is relatively fast. If it stops directly at the end point, the impact force caused by inertia may damage the sliding member and the limit member matched with the bucket device 100, and may even cause a safety accident.

[0058] Specifically, when the bucket device 100 moves on the sliding member, the controller (not shown in the figure) can determine the distance between the bucket device 100 and the moving end, and when the distance between the bucket device 100 and the moving end is less than or equal to the first preset interval, the bucket device 100 is controlled to perform a first-stage deceleration operation. For example, the distance between the bucket device 100 and the moving end is determined by a displacement sensor or the like. However, the distance test method of the bucket device 100 in the prior art is inaccurate, resulting in a possible deviation in the distance between the bucket device 100 and the moving end determined by the controller. Therefore, when the first-stage deceleration operation needs to be performed, the bucket device 100 does not perform the deceleration operation, and then the bucket device 100 does not perform effective deceleration, and the bucket device 100 with a faster speed collides with the stopper at the moving end and stops, which is easy to cause a safety accident.

[0059] Because the position monitoring of the bucket device 100 is not accurate, for safety reasons, the speed of the existing bucket device 100 is relatively low to avoid safety accidents. The bucket device 100 provided in the embodiment of the present invention also includes a first position detection component arranged on the sliding member, and the first position detection component can determine whether the bucket device 100 has reached the preset position. When the bucket device 100 reaches the preset position, the first position detection component can be triggered so that the controller controls the bucket device 100 to perform secondary deceleration. Because the first position detection component is arranged on the sliding member, it can accurately determine whether the bucket device 100 has reached the preset position. In addition, the position of the bucket device can also be determined by an encoder on the lifting mechanism, and when it is determined that the bucket device 100 has reached the preset position, even if the first position detection component is not triggered, the secondary deceleration operation can be performed. Therefore, the above method can prevent the occurrence of untimely deceleration or ineffective deceleration caused by inaccurate position detection. In addition, when the position monitoring is inaccurate, the bucket device 100 has not undergone a primary deceleration operation before reaching the preset position, and the bucket device 100 can also be controlled to perform a secondary deceleration operation to prevent the bucket device 100 from ineffectively decelerating.

[0060] By adopting the above-mentioned deceleration control method of the sliding bucket device, during the movement of the sliding bucket device 100, the controller can control the sliding bucket device 100 to perform two deceleration operations, thereby preventing the sliding bucket device 100 from decelerating in time and effectively due to inaccurate position monitoring, and preventing the sliding bucket device 100 from violently colliding with the moving end to cause a safety accident. In addition, the embodiment of the present invention can accurately detect the position of the sliding bucket device 100, which is conducive to increasing the maximum speed of the sliding bucket device 100 while ensuring safety, thereby improving the operating efficiency of the sliding bucket device 100.

[0061] In one embodiment, the bucket device 100 includes a second position detection component (not shown in the figure) for determining the real-time position of the bucket device 100. When the bucket device 100 moves along the sliding member, real-time determination of the interval between the bucket device 100 and the moving end includes the following steps: obtaining a real-time position signal of the bucket device 100; determining the bucket space coordinates of the bucket device 100 according to the real-time position signal and a preset corresponding relationship; and determining the distance between the bucket device 100 and the moving end according to the bucket space coordinates. In an embodiment of the present invention, the bucket device 100 includes a second position detection component, such as a displacement sensor, an encoder, a distance sensor, etc. The second position detection component can determine the position of the bucket device 100 in real time and send it to the controller. The controller can determine the bucket space coordinates of the bucket device 100 according to the real-time position signal sent by the second position detection component and the preset corresponding relationship, wherein the preset corresponding relationship can be a formula, a table, a specific compilation rule, etc. The controller can determine the distance between the bucket device 100 and the moving end according to the bucket space coordinates. When the distance is less than the first preset interval, the controller can control the bucket device 100 to perform a first-stage deceleration operation. The above-mentioned deceleration control method for the bucket device can monitor the position of the bucket device 100 in real time, and determine whether the bucket device 100 needs to perform a first-stage deceleration operation according to the monitoring result. The control logic is simple and easy to implement.

[0062] In one embodiment, the sliding member extends in the height direction, and determining the distance between the sliding bucket device 100 and the moving end according to the sliding bucket spatial coordinates includes the following steps: determining the first spatial coordinates of the top end of the sliding member and the second spatial coordinates of the bottom end of the sliding member; when the sliding bucket device 100 moves upward, determining the distance between the sliding bucket device 100 and the moving end according to the sliding bucket spatial coordinates and the first spatial coordinates; when the sliding bucket device 100 moves downward, determining the distance between the sliding bucket device 100 and the moving end according to the sliding bucket spatial coordinates and the second spatial coordinates.

[0063] The bucket device 100 can move upward or downward along the sliding member. When the bucket device 100 moves upward along the sliding member, the moving end of the bucket device 100 is the top of the sliding member; when the bucket device 100 moves downward along the sliding member, the moving end of the bucket device 100 is the bottom of the sliding member. When determining the distance between the bucket device 100 and the moving end, the controller can determine the first spatial coordinate of the top of the sliding member and the second spatial coordinate of the bottom of the sliding member. When the bucket device 100 moves upward along the sliding member, the controller can determine the distance between the bucket device 100 and the moving end according to the first spatial coordinate and the bucket spatial coordinate. When the distance is less than the preset distance, the controller controls the bucket device 100 to perform a first-stage deceleration operation, for example, to reduce the upward movement speed of the bucket device 100. Similarly, when the bucket device 100 moves downward along the sliding member, the controller can determine the distance between the bucket device 100 and the moving end according to the second spatial coordinate and the bucket spatial coordinate. In the above-mentioned deceleration control method of the bucket device, the distance between the bucket device 100 and the moving end can be determined according to the moving direction of the bucket device 100, and the bucket device 100 can be specifically controlled to perform the first deceleration operation.

[0064] In one embodiment, the first position detection assembly includes a first position detection switch and a second position detection switch arranged at intervals, and the deceleration control method further includes the following steps: when the bucket device 100 moves upward, when the bucket device 100 touches the first position detection switch, it is determined that the bucket device 100 reaches the first preset position; when the bucket device 100 moves downward, when the bucket device 100 touches the second position detection switch, it is determined that the bucket device 100 reaches the second preset position; wherein the first position detection switch is located above the second position detection switch. When the bucket device 100 moves upward and downward along the sliding member, the position where the bucket device 100 needs to perform the secondary deceleration operation is different. Therefore, in the embodiment of the present invention, the first position detection assembly includes a first detection switch and a second detection switch, and the first detection switch and the second detection switch can be installed at different positions, so as to detect different positions respectively. When the bucket device 100 passes the position where the first detection switch and the second detection switch are located, it will be triggered, and the controller can detect the triggered first detection switch and the second detection switch. For example, the first detection switch and the second detection switch are both proximity switches. When the bucket device 100 moves to the position of the proximity switch, the proximity switch can be triggered and send a detection signal to the controller. Specifically, the first detection switch is installed at the first preset position, and the second detection switch is installed at the second preset position. The first detection switch is located above the second detection switch. The first detection switch can detect the position of the bucket device 100 when the bucket device 100 moves upward, and the second detection switch can detect the position of the bucket device 100 when the bucket device 100 moves downward. The first detection switch and the second detection switch are used to respectively determine the position of the bucket device 100, and position detection can be performed for different movements of the bucket device 100. The controller can determine whether the bucket device 100 performs a secondary deceleration operation according to the movement direction of the bucket device 100 and the received detection signal. The position determination is accurate and the control logic is simple.

[0065] In one embodiment, the top and bottom ends of the sliding member are both provided with an in-position detection switch (not shown in the figure), and the side of the sliding bucket device 100 facing the sliding member is also provided with an in-position detection member 10, and the deceleration control method further includes the following steps: when the in-position detection switch detects the in-position detection member 10, the sliding bucket device 100 is controlled to stop moving. When the sliding bucket device 100 reaches the end of the movement, the sliding bucket device 100 needs to stop immediately to prevent the driving mechanism of the sliding bucket device 100 from malfunctioning due to continuous driving of the sliding bucket device 100. When the in-position detection switch detects that the sliding bucket device 100 moves to the end of the movement, the sliding bucket device 100 can send an in-position detection signal to the controller, and the controller can control the driving mechanism of the sliding bucket device 100, and the driving mechanism controls the sliding bucket device 100 to stop moving. Among them, the in-position detection switch can be selected as a proximity switch. By adopting the above-mentioned deceleration control method of the sliding bucket device, it is possible to accurately detect whether the sliding bucket device 100 has moved to the end of the movement, and to stop the movement drive of the sliding bucket device 100 in time, thereby preventing the sliding bucket device 100 from being driven for a long time and causing a failure of the driving mechanism or damage to the end limiter on the sliding part, thereby improving the safety performance of the sliding bucket device 100.

[0066] In one embodiment, when the in-position detection switch detects the in-position detection member 10, controlling the sliding bucket device 100 to stop moving includes the following steps: when the sliding bucket device 100 is in the deceleration process, adjusting the driving force of the sliding bucket device 100 so that the sliding bucket device 100 stops moving at the moving end of the sliding member. The controller can control the moving speed of the sliding bucket device 100 by adjusting the driving force output by the driving mechanism. When the sliding bucket device 100 moves to the moving end of the sliding member, the controller can control the sliding bucket device 100 to stop moving at the moving end to prevent the sliding bucket device 100 from being continuously driven, causing damage to the sliding member or the sliding bucket device 100.

[0067] In one embodiment, the deceleration control method further includes: after performing the first deceleration operation and before performing the second deceleration operation, controlling the sliding bucket device 100 to move at a first speed; after performing the second deceleration operation and before the sliding bucket device 100 stops moving, controlling the sliding bucket device 100 to move at a second speed; wherein the first speed is greater than the second speed. The controller can control the sliding bucket device 100 to decelerate or stop by controlling the driving force of the sliding bucket device 100. Before the sliding bucket device 100 stops, it is necessary to maintain a lower speed to prevent the sliding bucket device 100 from being damaged by excessive impact force when the control stops, causing a safety accident. In the embodiment of the present invention, two deceleration operations are performed on the movement of the sliding bucket device 100 to achieve step-by-step deceleration of the sliding bucket device 100, so as to avoid excessive acceleration causing unstable movement of the sliding bucket device 100, and also reduce the impact of the sliding bucket device 100 on the limiting member when it stops. In a specific embodiment, before performing the first-stage deceleration operation, the movement speed of the sliding bucket device 100 is 1 m / s; after performing the first-stage deceleration operation, the movement speed of the sliding bucket device 100 is 0.5 m / s; after performing the second-stage deceleration operation, the movement speed of the sliding bucket device 100 is 0.2 m / s, until the sliding bucket device 100 moves to the end of the movement and the sliding bucket device 100 stops moving.

[0068] In one embodiment, a clamping assembly (not shown) is further provided at the top of the sliding member, and the deceleration control method further comprises the following steps: after the sliding bucket device 100 stops moving at the moving end of the sliding bucket device, the clamping assembly and the sliding bucket device 100 are controlled to be locked in a limited position. When the sliding bucket device 100 stops at the moving end of the sliding bucket device, if an unexpected situation such as the driving force is disconnected occurs, it will cause a safety accident such as the sliding bucket device 100 falling. In the embodiment of the present invention, a clamping assembly is provided at the top of the sliding member, and when the sliding bucket device 100 stops at the top of the sliding member, the controller can control the clamping assembly and the sliding bucket device 100 to be locked in a limited position. For example, the clamping assembly includes a driving member and a telescopic shaft, the driving member is connected to the controller for communication, the driving member can control the telescopic movement of the telescopic shaft, and a limiting hole is provided at the corresponding position of the sliding bucket device 100. When the sliding bucket device 100 moves to the moving end, the controller can send a control signal so that the driving member drives the telescopic shaft to be inserted into the limiting hole to prevent the sliding bucket device 100 from falling due to the loss of driving force.

[0069] By adopting the above-mentioned deceleration control method for the sliding bucket device, the position of the sliding bucket device 100 can be accurately detected and identified, and the first-stage deceleration operation can be performed when the interval between the sliding bucket device 100 and the moving end is less than or equal to the first preset interval; when the sliding bucket device 100 moves to the moving end, the second-stage deceleration operation is performed, and when the sliding bucket device 100 moves to the moving end, the sliding bucket device 100 is controlled to stop. When the sliding bucket device 100 stops, the controller can control the clamping assembly and the sliding bucket device 100 to limit lock to prevent the sliding bucket device 100 from accidentally falling at the moving end. The above-mentioned deceleration control method has a simple control principle and is easy to control by the controller. It can accurately decelerate and stop the movement of the sliding bucket device 100, which is beneficial to speed up the movement of the sliding bucket device 100 and improve the safety performance of the sliding bucket device 100.

[0070] In one embodiment, a ladder is provided, comprising: a sliding member; a sliding bucket device 100, which moves relative to the sliding member, and is provided with a first position detection component for detecting whether the sliding bucket device 100 has reached a preset position; and a controller, which is configured to execute the above-mentioned deceleration control method for the sliding bucket device.

[0071] In one embodiment, the aerial ladder further includes a second position detection component that is communicatively connected to the controller and is used to determine the real-time position of the bucket device 100 .

[0072] In one embodiment, the first position detection component includes a first position detection switch and a second position detection switch arranged at intervals. The first position detection switch is used to determine whether the sliding bucket device 100 has reached a first preset position, and the second position detection switch is used to determine whether the sliding bucket device 100 has reached a second preset position. The first position detection switch is located above the second position detection switch.

[0073] In one embodiment, the top and bottom ends of the sliding member are both provided with an in-position detection switch that is connected to the controller for communication, and the side of the sliding bucket device 100 facing the sliding member is also provided with an in-position detection member 10, and the in-position detection switch is used to detect whether the movement of the sliding bucket device 100 is completed.

[0074] In one embodiment, a clamping assembly is further provided at the top of the sliding member, and the clamping assembly is used to limit and lock the clamping assembly and the sliding bucket device 100.

[0075] In one embodiment, Figure 3, which is a schematic diagram of the structure of the brake mechanism 20 provided according to an embodiment of the present invention. The bucket device 100 further includes a brake mechanism 20 and a lifting mechanism (not shown in the figure), wherein the brake mechanism 20 includes: a mounting frame 21; a brake shaft 22, rotatably disposed on the mounting frame 21 and drivingly connected to the lifting mechanism; a brake member 23, mounted on the outer periphery of the brake shaft 22 and used to perform a braking operation after the brake shaft 22 rotates; an emergency assembly 24, drivingly connected to the brake shaft 22 and used to drive the brake shaft 22 to rotate in an unexpected state, wherein the unexpected state is a state in which the lifting mechanism is disconnected from the brake shaft 22.

[0076] The mounting frame 21 can be mounted on the bucket device 100 and can be used to mount other components of the brake mechanism 20. The brake shaft 22 is rotatably arranged on the mounting frame 21. The lifting mechanism can drive the brake shaft 22 to move up and down so that the bucket device 100 moves relative to the sliding member. The brake member 23 is mounted on the outer periphery of the brake shaft 22. When the brake shaft 22 rotates, it can drive the brake member 23 to brake by friction with the sliding member. The emergency component 24 can pull the brake shaft 22 when the bucket device 100 is in an unexpected state, so that the brake shaft 22 rotates. The rotation of the brake shaft 22 can drive the brake member 23 to work, so that the brake member 23 and the sliding member are braked by friction. When the lifting mechanism is disconnected from the brake shaft 22, the lifting mechanism can no longer drive the brake shaft 22 to move up and down, and the bucket device 100 will fall downward due to gravity. At this time, the emergency component 24 can pull the brake shaft 22 and drive the brake wheel to brake. One side of the sliding member is a brake member 23, and the other side is a clamping member (not shown in the figure) on the brake mechanism. When the brake member 23 rubs against the sliding member, the clamping member can clamp and brake the sliding member together with the brake member 23.

[0077] In some embodiments, the emergency component 24 includes a connecting crank 241 and an elastic member 242. The first end of the connecting crank 241 is sleeved on the outer periphery of the brake shaft 22 and is coaxially driven with the brake shaft 22. The second end of the connecting crank 241 is pivotally connected to the elastic member 242. In an unexpected state, the elastic tensile force of the elastic member 242 drives the connecting crank 241 to rotate, so that the brake mechanism 20 enters a braking state, and the brake member 23 and the sliding member are frictionally braked.

[0078] When the bucket device 100 is in an unexpected state, the force between the lifting mechanism and the brake shaft 22 is disconnected, and the connecting crank 241 can drive the brake shaft 22 to rotate under the force of the elastic member 242, so that the brake wheel and the sliding member are frictionally braked. The emergency component 24 of the present application includes an elastic member 242, and the elastic member 242 has a tensile force. When the bucket device 100 is in a normal state, the brake shaft 22 is subjected to the force of the lifting mechanism, and the elastic member 242 cannot pull the connecting crank 241. When the bucket device 100 is in an unexpected state, there is no force between the brake shaft 22 and the lifting mechanism, and the elastic member 242 can pull the connecting crank 241 and drive the brake shaft 22 and the brake member 23 to rotate, so that the brake member 23 can be frictionally braked with the sliding member. With the above-mentioned brake mechanism 20, when the bucket device 100 is in an unexpected state, the brake mechanism 20 can automatically perform a braking operation to prevent the bucket device 100 from falling.

[0079] In some embodiments, the sliding bucket device 100 also includes: a vertical plate support frame 30, which extends vertically and is close to one side of the sliding member; a bottom plate support frame 40, a first end of which is rotatably connected to the vertical plate support frame 30; a telescopic assembly 50, the two ends of the telescopic assembly 50 are respectively hinged to the vertical plate support frame 30 and the bottom plate support frame 40, the telescopic assembly 50 has an axially downward driving force and can help the second end of the bottom plate support frame 40 to swing toward or away from the sliding member.

[0080] The vertical plate support frame 30 can be used to install the vertical plate of the sliding bucket device 100, and the bottom plate support frame 40 can be used to install the bottom plate of the sliding bucket device 100. The vertical plate support frame 30 extends vertically and is arranged on the side facing the sliding member. The bottom plate support frame 40 is rotatably connected to the vertical plate support frame 30. When the second end of the bottom plate support frame 40 rotates toward the vertical plate support frame 30, the space of the sliding bucket device 100 is reduced, which is convenient for transportation.

[0081] The sliding bucket device 100 provided in the embodiment of the present invention includes a telescopic assembly 50, the two ends of which are respectively hinged to the vertical plate support frame 30 and the bottom plate support frame 40, and the telescopic assembly 50 has a driving force in the axial downward direction. When the bottom plate support frame 40 of the sliding bucket device 100 is folded upward, the telescopic assembly 50 provides a force to make it easier for the operator to fold the bottom plate support frame 40. When the bottom plate support frame 40 of the sliding bucket device 100 is unfolded downward, the telescopic assembly 50 can also provide a force to make it easier for the operator to unfold the bottom plate support frame 40.

[0082] In some embodiments, the sliding bucket device 100 also includes: a fixed ladder 60, one end of the fixed ladder 60 is connected to the vertical plate support frame 30, and the other end of the fixed ladder 60 extends upward in the direction of the sliding member and can be abutted against the top limit of the sliding member. The fixed ladder 60 is used to connect the accommodating space in the sliding bucket device 100 with the external emergency area.

[0083] The sliding bucket device 100 is usually installed on a sliding member such as a guide rail, and is used to transport people in distress and rescue workers. A fixed ladder 60 is set to extend toward the sliding member, so that people in distress and rescue workers can enter and exit the accommodation space in the sliding bucket device 100 through the fixed ladder 60. The fixed ladder 60 is connected to the vertical plate support frame 30, and the connection is more stable and the failure rate is lower. In a specific embodiment, the fixed ladder 60 is detachably connected to the vertical plate support frame 30. When the sliding bucket device 100 is installed, the skeleton of the sliding bucket device 100 can be spliced ​​first, and then the fixed ladder 60 is installed on the vertical plate support frame 30. The installation is stable, and the detachable connection can be disassembled and replaced when the fixed ladder 60 fails, which is convenient for maintenance. In another specific embodiment, the fixed ladder 60 is welded to the vertical plate support frame 30. The welded structure is more stable than the detachable connection structure, which reduces the failure rate.

[0084] In some embodiments, an emergency device is provided, comprising the above-mentioned ladder.

[0085] In a specific embodiment, the emergency equipment is a fire truck, the ladder is a fire ladder, and the fire ladder includes a guide rail and a sliding bucket device 100. The sliding bucket device 100 is provided with rollers, and the rollers roll in cooperation with the guide rails.

[0086] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "some examples", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0089] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A deceleration control method for a bucket device, characterized in that: The sliding bucket device (100) moves relative to the sliding member, and the sliding member is provided with a first position detection component for detecting whether the sliding bucket device (100) reaches a preset position. The deceleration control method of the sliding bucket device comprises the following steps: In the process of the sliding bucket device (100) moving along the sliding member, the distance between the sliding bucket device (100) and the moving end is acquired in real time; When the distance between the sliding bucket device (100) and the moving end is less than or equal to a first preset interval, controlling the sliding bucket device (100) to perform a first-stage deceleration operation; When the distance between the sliding bucket device (100) and the moving end is less than or equal to a second preset interval, controlling the sliding bucket device (100) to perform a secondary deceleration operation; Wherein, the first preset interval is greater than the second preset interval, and the interval between the preset position and the motion end is the second preset interval.

2. The deceleration control method of the bucket device according to claim 1, characterized in that: The sliding bucket device (100) comprises a second position detection component for determining the real-time position of the sliding bucket device (100), and when the sliding bucket device (100) moves along the sliding member, determining the interval between the sliding bucket device (100) and the moving end in real time comprises the following steps: Acquiring a real-time position signal of the sliding bucket device (100); Determining the bucket space coordinates of the bucket device (100) according to the real-time position signal and the preset corresponding relationship; The distance between the sliding bucket device (100) and the moving end is determined according to the sliding bucket space coordinates.

3. The deceleration control method of the bucket device according to claim 2, characterized in that: The sliding member extends in the height direction, and determining the distance between the sliding bucket device (100) and the moving end according to the sliding bucket space coordinates comprises the following steps: Determining a first spatial coordinate of a top end of the slider and a second spatial coordinate of a bottom end of the slider; When the sliding bucket device (100) moves upward, determining the distance between the sliding bucket device (100) and the moving end according to the sliding bucket space coordinate and the first space coordinate; When the sliding bucket device (100) moves downward, the distance between the sliding bucket device (100) and the moving end is determined according to the sliding bucket space coordinates and the second space coordinates.

4. The deceleration control method of the bucket device according to claim 1, characterized in that: The first position detection assembly includes a first position detection switch and a second position detection switch arranged at intervals, and the deceleration control method further includes the following steps: When the sliding bucket device (100) moves upward, when the sliding bucket device (100) touches the first position detection switch, it is determined that the sliding bucket device (100) reaches the first preset position; When the sliding bucket device (100) moves downward, when the sliding bucket device (100) touches the second position detection switch, it is determined that the sliding bucket device (100) reaches the second preset position; Wherein, the first position detection switch is located above the second position detection switch.

5. The deceleration control method of the bucket device according to claim 1, characterized in that: The top and bottom ends of the sliding member are both provided with in-position detection switches, and the side of the sliding bucket device (100) facing the sliding member is also provided with an in-position detection member (10). The deceleration control method further comprises the following steps: When the in-place detection switch detects the in-place detection member (10), the sliding bucket device (100) is controlled to stop moving.

6. The deceleration control method of the bucket device according to claim 5, characterized in that: The deceleration control method further includes: After performing the primary deceleration operation and before performing the secondary deceleration operation, controlling the slide bucket device (100) to move at a first speed; After performing the secondary deceleration operation and before the sliding bucket device (100) stops moving, controlling the sliding bucket device (100) to move at a second speed; Wherein, the first speed is greater than the second speed.

7. The deceleration control method of the bucket device according to claim 5, characterized in that: When the in-place detection switch detects the in-place detection member (10), controlling the sliding bucket device (100) to stop moving comprises the following steps: When the sliding bucket device (100) is in the process of decelerating, the driving force of the sliding bucket device (100) is adjusted so that the sliding bucket device (100) stops moving at the moving end of the sliding member.

8. The deceleration control method of the bucket device according to claim 5, characterized in that: A clamping assembly is also provided at the top of the sliding member, and the deceleration control method further comprises the following steps: After the sliding bucket device (100) stops moving at the moving end of the sliding member, the clamping assembly and the sliding bucket device (100) are controlled to be limited and locked.

9. A ladder, characterized in that: include: Slides; A sliding bucket device (100) moves relative to the sliding member, and the sliding member is provided with a first position detection component for detecting whether the sliding bucket device (100) reaches a preset position; and A controller is configured to execute the deceleration control method of the bucket device according to any one of claims 1 to 8.

10. The aerial ladder according to claim 9, characterized in that: The ladder also includes a second position detection component which is communicatively connected to the controller and is used to determine the real-time position of the bucket device (100).

11. The aerial ladder according to claim 10, characterized in that: The first position detection assembly comprises a first position detection switch and a second position detection switch arranged at intervals, the first position detection switch being used to determine whether the sliding bucket device (100) has reached a first preset position, the second position detection switch being used to determine whether the sliding bucket device (100) has reached a second preset position, and the first position detection switch being located above the second position detection switch.

12. The aerial ladder according to claim 9, characterized in that: The top and bottom ends of the sliding member are both provided with an in-position detection switch which is connected to the controller for communication, and the side of the sliding bucket device (100) facing the sliding member is also provided with an in-position detection member (10), and the in-position detection switch is used to detect whether the movement of the sliding bucket device (100) is completed.

13. The aerial ladder according to claim 12, characterized in that: A clamping assembly is also provided at the top end of the sliding member, and the clamping assembly is used to limit and lock the clamping assembly and the sliding bucket device (100).

14. The aerial ladder according to claim 9, characterized in that: The sliding bucket device (100) further comprises a braking mechanism (20) and a lifting mechanism, wherein the braking mechanism (20) comprises: Mounting frame (21); A brake shaft (22) is rotatably disposed on the mounting frame (21) and is drivingly connected to the lifting mechanism; A brake member (23) mounted on the outer periphery of the brake shaft (22) and used to perform a braking operation after the brake shaft (22) rotates; An emergency component (24) is drivingly connected to the brake shaft (22) and is used to drive the brake shaft (22) to rotate in an unexpected state, wherein the unexpected state is a state in which the lifting mechanism is disconnected from the brake shaft (22).

15. The aerial ladder according to claim 14, characterized in that: The emergency component (24) comprises a connecting crank (241) and an elastic member (242), wherein a first end of the connecting crank (241) is sleeved on the outer periphery of the brake shaft (22) and is coaxially drivingly connected to the brake shaft (22), and a second end of the connecting crank (241) is pivotally connected to the elastic member (242); In the unexpected state, the elastic tensile force of the elastic member (242) drives the connecting crank (241) to rotate, so that the brake mechanism (20) enters a braking state, and the brake member (23) and the sliding member perform friction braking.

16. The aerial ladder according to claim 9, characterized in that: The sliding bucket device (100) comprises: A vertical plate support frame (30) extending vertically and close to one side of the sliding member; A bottom plate support frame (40), a first end of which is rotatably connected to the vertical plate support frame (30); A telescopic assembly (50), wherein both ends of the telescopic assembly (50) are respectively hinged to the vertical plate support frame (30) and the bottom plate support frame (40), and the telescopic assembly (50) has an axially downward driving force and can assist the second end of the bottom plate support frame (40) to swing toward or away from the sliding member.

17. The aerial ladder according to claim 16, characterized in that: The sliding bucket device (100) further comprises: A fixed ladder (60), one end of which is connected to the vertical plate support frame (30), and the other end of which extends upward in the direction of the sliding member and can be abutted against the top limit of the sliding member, and the fixed ladder (60) is used to connect the accommodating space in the sliding bucket device (100) with the external emergency area.

18. An emergency device, characterized in that: Comprising a ladder according to any one of claims 9 to 17.

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