CN114148967B - Emergency protection device and aerial work platform - Google Patents
Emergency protection device and aerial work platform Download PDFInfo
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- CN114148967B CN114148967B CN202111527793.9A CN202111527793A CN114148967B CN 114148967 B CN114148967 B CN 114148967B CN 202111527793 A CN202111527793 A CN 202111527793A CN 114148967 B CN114148967 B CN 114148967B
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- 238000009434 installation Methods 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
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- 239000004033 plastic Substances 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
- B66F11/046—Working platforms suspended from booms of the telescoping type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
An emergency protection device and an aerial working platform are provided, wherein the emergency protection device comprises an elastic rod, a sensing unit and a control unit. According to the emergency protection device provided by the embodiment of the invention, when an operator performs high-altitude operation, if the operator encounters sudden danger such as an obstacle, the operator can squeeze the emergency protection device arranged on the high-altitude operation platform, an elastic rod in the emergency protection device expands after being squeezed, and after the sensing unit detects that the elastic rod expands to a certain degree, a protection signal is sent to the control unit, and the control unit can control and stop the movement of the high-altitude operation platform so as to prevent the operator from being further injured. Meanwhile, the emergency protection device is mainly of a mechanical structure, has good durability and high reliability, and is simple in structure and low in cost compared with an electric mechanism device, and the emergency protection device is relatively easy to realize an emergency protection function.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to an emergency protection device and an aerial work platform.
Background
The aerial working platform is an advanced aerial working machine, can greatly improve the working efficiency, safety and comfort of aerial constructors and reduce the labor intensity. In China, the aerial work platform is also widely used, for example, the aerial work platform is initially applied to maintenance of general municipal street lamps, pruning of garden trees and the like, and along with rapid development of economy in China, requirements of engineering construction, industrial installation, equipment overhaul, plant maintenance, shipbuilding, electric power, municipal administration, airports, communication, gardens, traffic and the like on the aerial work platform are also continuously increased.
Generally, when working aloft, an operator first lifts an operation panel to a high position by using an aloft work vehicle, and then stands in the operation panel to push various control buttons to thereby raise and lower the operation panel or translate the operation panel. For convenient operation, in order to observe the surrounding situation of the overhead working truck simultaneously, the operator faces the truck body when operating, and the arm support can be opposite to the obstacle when extending outwards. When the obstacle approaches the operator, the operator is hard to perceive the obstacle, and if the movement speed of the operation table is high, the operator is likely to be injured or even threatened by being clamped between the obstacle and the operation device.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides an emergency protection device which solves the safety problem caused by difficulty in detecting obstacles when an operator performs high-altitude operation. The invention also provides an aerial working platform.
According to an embodiment of the first aspect of the invention, the emergency protection device is applied to an aerial work platform and comprises:
the elastic rod is arranged on the aerial working platform and is provided with an expansion part, and the expansion part is used for expanding along with the deformation of the elastic rod;
the sensing unit is arranged on the aerial working platform and positioned at one side of the expansion part, and is used for feeding back the expansion state of the expansion part;
the control unit is electrically connected with the sensing unit and used for limiting the action of the aerial work platform.
The emergency protection device provided by the embodiment of the invention has at least the following beneficial effects: when the operator carries out high-altitude operation, if meet sudden danger such as barrier, the operator just can extrude the emergent protection device that sets up on high-altitude operation platform, and the elastic rod in the emergent protection device produces the inflation after receiving the extrusion, and after sensing unit detected the elastic rod inflation to a certain extent, send protection signal to the control unit, and the control unit can control the removal of stopping high-altitude operation platform, prevents that the operator from further receiving the injury. Meanwhile, the emergency protection device is mainly of a mechanical structure, has good durability and high reliability, and is simple in structure and low in cost compared with an electric mechanism device, and the emergency protection device is relatively easy to realize an emergency protection function.
According to an embodiment of the present invention, the elastic lever includes:
the sensing component is arranged on the aerial working platform at one end, and comprises an elastic body and a fixing body, wherein the elastic body is used for generating deformation after being extruded, and the fixing body is used for supporting the elastic body;
one end of the expansion contact is connected with the other end of the sensing component, the other end of the expansion contact is arranged on the aerial working platform, and the expansion contact is used for expanding along with deformation of the elastic body; the sensing component has an inner cavity that communicates into the expansion contact.
According to an embodiment of the invention, the sensing element further comprises a push rod disposed in the inner cavity, the push rod being adapted to expand the expansion contact.
According to the embodiment of the invention, one side of the expansion contact close to the sensing unit is an expansion body.
According to an embodiment of the invention, an auxiliary detection part is arranged on the side of the expansion contact close to the sensing unit.
According to an embodiment of the present invention, the sensing unit may employ at least one of a travel switch, a proximity switch, and a displacement sensor.
According to an embodiment of the invention, the emergency protection device further comprises:
the first bracket component is arranged on the aerial working platform, one end of the elastic rod is arranged on the first bracket component, the expansion part is close to one side where the first bracket component is located, and the sensing unit is arranged on the first bracket component;
the second bracket component is arranged on the aerial working platform, and the other end of the elastic rod is arranged on the second bracket component.
According to an embodiment of the invention, the emergency protection device further comprises:
the first mounting plate is arranged on the first bracket component, one end of the elastic rod is arranged on the first mounting plate, the expansion part is close to one side where the first mounting plate is located, and the sensing unit is arranged on the first mounting plate;
the second mounting plate is arranged on the second bracket component, and the other end of the elastic rod is arranged on the second mounting plate.
An aerial work platform according to an embodiment of the second aspect of the present invention includes:
a station;
the guardrail is arranged on the platform;
the operation device is arranged on the guardrail;
according to the emergency protection device, the emergency protection device is arranged on the guardrail, and the sensing unit of the emergency protection device is electrically connected with the operation equipment.
The aerial work platform provided by the embodiment of the invention has at least the following beneficial effects: when an operator stands on the platform and performs high-altitude operation on the operation equipment, if the operator encounters sudden danger such as an obstacle, the operator can squeeze the emergency protection device arranged on the guardrail, and the emergency protection device can control the operation stopping of the operation platform through the control unit so as to prevent the operator from being further injured. Meanwhile, when an operator is extruded by the obstacle, the guardrail arranged on the platform also plays a certain protection role.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic illustration of an emergency protective apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of an emergency protective device according to an embodiment of the present invention in operation;
FIG. 3 is a front view of an elastomeric lever in accordance with an embodiment of the invention;
FIG. 4 is a side view of an elastomeric lever in accordance with an embodiment of the invention;
FIG. 5 is a schematic view of a pushrod disposed in an elastic rod according to an embodiment of the present invention;
FIG. 6 is a schematic illustration of a pushrod according to an embodiment of the invention operating in an elastic lever;
fig. 7 is a schematic view of an aerial platform according to an embodiment of the present invention.
Reference numerals:
elastic rod 100, sensing member 110, elastic body 111, fixed body 112, expansion contact 120, push rod 130,
A sensor unit 200,
A first bracket assembly 310, a second bracket assembly 320,
A first mounting plate 410, a second mounting plate 420,
A station 500,
Guard rail 600,
The device 700 is operated.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as connection, disconnection, etc. should be construed broadly, and the specific meaning of the terms in the present invention can be reasonably determined by those skilled in the art in combination with the specific contents of the technical scheme.
An emergency protection device according to an embodiment of the first aspect of the present invention is described with reference to fig. 1 to 7.
The emergency protection device according to the present invention comprises: an elastic rod 100, and a sensing unit 200. The elastic rod 100 is arranged on the aerial working platform, and the elastic rod 100 is provided with an expansion part which is used for expanding along with the deformation of the elastic rod 100; the sensing unit 200 is disposed on the aerial platform and located at a side of the expansion part, and the sensing unit 200 is used for limiting the action of the aerial platform.
Referring to fig. 1 and 7, the elastic rod 100 is in the shape of a cylinder and horizontally disposed on the aerial work platform. The sensing unit 200 has a main shape of a rectangular parallelepiped and has a sensing contact near the expansion portion of the elastic rod 100. The control unit (not shown) may be provided in the operation device 700 or may be provided on the housing of the operation device 700. In some practical situations, when the operator performs the aerial work operation, since the operator faces away from the obstacle, if the obstacle gradually approaches the operator to a certain extent, the obstacle presses against the back of the operator, so that the operator involuntarily tilts forward and presses against the emergency protection device provided on the aerial work platform. When the elastic rod 100 is pressed by pressure, the expansion part starts to expand, and in the expansion process, the elastic rod is continuously close to the detection contact of the detection unit, and when the detection contact is touched, the detection unit sends a protection signal to the control unit, and the control unit controls the operation of the aerial working platform to be stopped. When the danger is relieved, an operator can take reset operation, so that the control unit controls the operation of the aerial work platform to be started, and the operator can continue to finish aerial work.
According to the emergency protection device provided by the embodiment of the invention, when an operator performs high-altitude operation, if the operator encounters sudden danger such as an obstacle, the operator can squeeze the emergency protection device arranged on the high-altitude operation platform, the elastic rod 100 in the emergency protection device expands after being squeezed, and when the sensing unit 200 detects that the elastic rod 100 expands to a certain extent, a protection signal is sent to the control unit, and the control unit can control to stop the movement of the high-altitude operation platform so as to prevent the operator from being further injured. Meanwhile, the emergency protection device is mainly of a mechanical structure, has good durability and high reliability, and is simple in structure and low in cost compared with an electric mechanism device, and the emergency protection device is relatively easy to realize an emergency protection function.
In some embodiments of the present invention, as shown in fig. 3 and 4, the elastic rod 100 includes: a sensing element 110, an expansion contact 120. One end of the sensing member 110 is disposed on the overhead working platform, the sensing member 110 includes an elastic body 111 and a fixing body 112, the elastic body 111 is used for generating deformation after being extruded, and the fixing body 112 is used for supporting the elastic body 111; one end of the expansion contact 120 is connected with the other end of the sensing component 110, the other end of the expansion contact 120 is arranged on the aerial working platform, and the expansion contact 120 is used for expanding along with deformation of the elastic body 111; the sensing element 110 has an inner cavity that communicates into the expansion contact 120.
Fig. 3 is a front view of the elastic rod 100, and referring to fig. 3, the sensing member 110 is a cylinder, and the right end thereof is connected to the expansion contact 120. The expansion contact 120 is also cylindrical, and has a slightly larger radius and smaller volume than the sensing element 110. Fig. 4 is a left side view of the elastic rod 100, referring to fig. 4, the elastic rod 100 is close to the operator, and a half cylinder thereof is an elastic body 111; the elastic rod 100 is located near one side of the sensing unit 200, and a half cylinder thereof is the fixed body 112. With continued reference to fig. 2, when the operator squeezes the elastomer 111 of the spring rod 100, the expansion contact 120 expands, increasing in radius, which triggers the sensing unit 200 to operate. When the elastic body 111 is extruded, the fixing body 112 can well support the elastic body 111 to play a role of limiting and protecting, so that the fixing body 112 can be made of rigid materials such as metal alloy, stone and the like. The elastomer 111 and the expansion contact 120 may be made of rubber or other elastic composite materials so that the elastic rod 100 automatically returns to its original shape when the emergency protection device is deactivated.
In some embodiments of the present invention, as shown in fig. 5, the sensing component 110 further includes a push rod 130, the push rod 130 being disposed in the inner cavity, the push rod 130 being configured to expand the expansion contact 120. Referring to fig. 5 and 6, the inner cavity of the sensing member 110 is filled with a medium, which may be a gaseous medium such as nitrogen, argon or helium, or a liquid medium such as glycerol or kerosene. When the sensing member 110 is deformed by external pressure, the medium in the inner cavity moves to the right, the push rod 130 is pushed by the pressure, and the right end of the push rod 130 presses the expansion contact 120, so that the expansion contact 120 expands.
In some embodiments of the present invention, the side of the expansion contact 120 adjacent to the sensing unit 200 is an expansion body. In some embodiments, the expansion contact 120 is entirely an expansion body, allowing it to expand in all directions. The expansion contact 120 can also be divided into two parts and made of different materials, like the spring rod 100. The side far away from the sensing unit 200 can be made of materials such as plastics, metals, ceramics and the like which are not easy to deform; the expansion body on the side near the sensing unit 200 may be made of rubber or other elastic composite material. Therefore, when the expansion contact 120 works, the expansion body expands and gradually approaches the detection contact of the sensing unit 200, and the side far away from the sensing unit 200 can play a role of supporting the expansion body, so that the working state of the expansion body is more stable.
In some embodiments of the present invention, the expansion contact 120 is provided with an auxiliary detection means on the side close to the sensing unit 200. The auxiliary detecting member may be a block structure or a sheet structure, and the specific material may be copper, aluminum, iron or plastic, and the auxiliary detecting member is disposed on one side of the expansion contact 120 near the sensing unit 200. By adding the auxiliary detection component, the detection contact of the sensing unit 200 can trigger the work more easily, and the induction failure of the emergency protection device can be reduced to a certain extent.
In some embodiments of the present invention, the sensing unit 200 may employ at least one of a travel switch, a proximity switch, and a displacement sensor. The travel switch belongs to a contact type sensor, and when the sensing unit 200 adopts the travel switch, the expansion contact 120 needs to be contacted with the travel switch after expansion to trigger the device to work, so that emergency protection is realized. The proximity switch and the displacement sensor belong to a proximity sensor, when the sensing unit 200 adopts the proximity switch or the displacement sensor, the expansion contact 120 expands and the sensing unit 200 can trigger the work to realize emergency protection when the detection contact of the proximity sensing unit 200 reaches a set detection distance.
In some embodiments of the present invention, as shown in fig. 1 or 2, the emergency protection apparatus further includes a first bracket assembly 310, a second bracket assembly 320. The first bracket component 310 is arranged on the aerial working platform, one end of the elastic rod 100 is arranged on the first bracket component 310, the expansion part is close to one side of the first bracket component 310, and the sensing unit 200 is arranged on the first bracket component 310; the second bracket assembly 320 is disposed on the aerial platform, and the other end of the elastic rod 100 is disposed on the second bracket assembly 320.
Referring to fig. 1, the first bracket assembly 310 is formed by connecting a plurality of cylindrical tubes, and has a rectangular shape with a hollow center. The second bracket assembly 320 has the same shape as the first bracket assembly 310 and is disposed in parallel and symmetrically at a distance from the first bracket assembly 310. With continued reference to fig. 7, the upper end of the first bracket assembly 310, which is far from the platform 500, is connected to the upper end of the second bracket assembly 320, which is far from the platform 500, through a cylindrical pipe, the upper end of the first bracket assembly 310, which is near to the platform 500, is connected to one end of the elastic rod 100, and the upper end of the second bracket assembly 320, which is near to the platform 500, is connected to the other end of the elastic rod 100.
In some embodiments of the present invention, as shown in fig. 1 or 2, the emergency protection device further includes a first mounting plate 410, a second mounting plate 420. The first mounting plate 410 is disposed on the first bracket assembly 310, one end of the elastic rod 100 is disposed on the first mounting plate 410, and the expansion part is close to the side of the first mounting plate 410, and the sensing unit 200 is disposed on the first mounting plate 410; the second mounting plate 420 is disposed on the second bracket assembly 320, and the other end of the elastic rod 100 is disposed on the second mounting plate 420.
Referring to fig. 1, the first mounting plate 410 and the second mounting plate 420 are both irregularly-patterned panels, the first mounting plate 410 is disposed in parallel in the rectangular hollow space of the first bracket assembly 310 and is connected to the inner side of the upper end of the first bracket assembly 310, and the second mounting plate 420 is disposed in parallel in the rectangular hollow space of the second bracket assembly 320 and is connected to the inner side of the upper end of the second bracket assembly 320. Both ends of the elastic rod 100 are connected to the inner side surface of the first mounting plate 410 and the inner side surface of the second mounting plate 420, respectively, and the sensing unit 200 is disposed on the inner side surface of the first mounting plate 410.
The first bracket component 310, the second bracket component 320, the first mounting plate 410 and the second mounting plate 420 are arranged on the aerial work platform, and the beneficial effects are that: firstly, the installation of the elastic rod 100 and the sensing unit 200 is facilitated, so that the installation has stability; secondly, the installation position of the elastic rod 100 is more reasonable, so that the effect of triggering the emergency protection device to work by the body is more obvious when an operator encounters danger; and thirdly, the expansion head and the sensing unit 200 are arranged in a relatively hidden position, so that the interference suffered by the emergency protection device during operation is reduced.
An aerial work platform according to an embodiment of the second aspect of the present invention includes a platform 500, a guard rail 600, an operation device 700, and any emergency protection apparatus according to an embodiment of the first aspect of the present invention. The guard rail 600 is provided on the platform 500; the operation device 700 is provided on the guard rail 600; the emergency protection device is disposed on the guard rail 600, and the sensing unit 200 of the emergency protection device is electrically connected to the operation device 700.
Referring to fig. 7, the docking station 500 is a rectangular parallelepiped panel and is used for an operator to stand. Around the platform 500 is provided a guard rail 600 formed by connecting a plurality of pipe strings. A guard door for an operator to get in and out on the overhead working platform is provided at the front side of the guard rail 600. An operation device 700 is provided at the left side of the guard rail 600, and an emergency protection device is provided above the operation device 700. The operation device 700 is provided with handrails on both sides thereof, and when an operator is mishandled or encounters a sudden danger, the operator can lean against the handrails, thereby preventing the operator from falling down due to unstable standing on the platform 500, and thus protecting the operator.
According to the aerial working platform of the embodiment of the present invention, when an operator stands on the platform 500 and performs aerial working operation on the operation device 700, if the operator encounters an abrupt danger such as an obstacle, the operator may squeeze the emergency protection device provided on the guard rail 600, so that the emergency protection device may control to stop the operation of the operation platform through the control unit, thereby preventing the operator from being further injured. Meanwhile, the guard rail 600 provided on the platform 500 also plays a certain role in protection when the operator is pressed by the obstacle.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. An emergency protection device applied to an aerial work platform, comprising:
an elastic rod (100) arranged on the aerial working platform, wherein the elastic rod (100) is provided with an expansion part, and the expansion part is used for expanding along with the deformation of the elastic rod (100);
the sensing unit (200) is arranged on the aerial working platform and positioned on one side where the expansion part is positioned, and the sensing unit (200) is used for feeding back the expansion state of the expansion part;
the control unit is electrically connected with the sensing unit (200) and is used for limiting the action of the aerial work platform;
the elastic lever (100) comprises:
the induction component (110) is arranged on the aerial working platform at one end, the induction component (110) comprises an elastic body (111) and a fixed body (112), the elastic body (111) is used for generating deformation after being extruded, and the fixed body (112) is used for supporting the elastic body (111);
an expansion contact (120) with one end connected to the other end of the sensing member (110) and the other end provided on the aerial platform, the expansion contact (120) being configured to expand following deformation of the elastic body (111); -the inductive component (110) has an inner cavity which communicates into the expansion contact (120);
the sensing component (110) further comprises a push rod (130), the push rod (130) is arranged in the inner cavity, and the push rod (130) is used for expanding the expansion contact (120).
2. The emergency protection device according to claim 1, wherein the expansion contact (120) is an expansion body on the side close to the sensor unit (200).
3. Emergency protection device according to claim 1, characterized in that the expansion contact (120) is provided with auxiliary detection means on the side close to the sensor unit (200).
4. The emergency protection device according to claim 1, wherein the sensing unit (200) may employ at least one of a travel switch, a proximity switch, a displacement sensor.
5. The emergency protection device of claim 1, further comprising:
the first bracket assembly (310) is arranged on the aerial working platform, one end of the elastic rod (100) is arranged on the first bracket assembly (310), the expansion part is close to one side of the first bracket assembly (310), and the sensing unit (200) is arranged on the first bracket assembly (310);
the second bracket component (320) is arranged on the aerial working platform, and the other end of the elastic rod (100) is arranged on the second bracket component (320).
6. The emergency protection device of claim 5, further comprising:
the first mounting plate (410) is arranged on the first bracket assembly (310), the one end of the elastic rod (100) is arranged on the first mounting plate (410), the expansion part is close to one side where the first mounting plate (410) is arranged, and the sensing unit (200) is arranged on the first mounting plate (410);
and a second mounting plate (420) disposed on the second bracket assembly (320), wherein the other end of the elastic rod (100) is disposed on the second mounting plate (420).
7. An aerial work platform, comprising:
a station (500);
a guardrail (600) provided on the platform (500);
an operation device (700) provided on the guardrail (600);
emergency protection device according to any one of claims 1 to 6, which is arranged on the guardrail (600), the sensing unit (200) of which is electrically connected to the operating device (700).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111527793.9A CN114148967B (en) | 2021-12-14 | 2021-12-14 | Emergency protection device and aerial work platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111527793.9A CN114148967B (en) | 2021-12-14 | 2021-12-14 | Emergency protection device and aerial work platform |
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| CN114148967A (en) | 2022-03-08 |
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