CN110723701B - Anti-extrusion device for mobile operation platform and aerial operation machine - Google Patents
Anti-extrusion device for mobile operation platform and aerial operation machine Download PDFInfo
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- CN110723701B CN110723701B CN201910941318.2A CN201910941318A CN110723701B CN 110723701 B CN110723701 B CN 110723701B CN 201910941318 A CN201910941318 A CN 201910941318A CN 110723701 B CN110723701 B CN 110723701B
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- 238000001125 extrusion Methods 0.000 title claims abstract description 71
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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
- 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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- 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
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Abstract
The invention relates to a safety protection device, and particularly discloses an anti-extrusion device for a mobile operation platform, which comprises: the opening and closing mechanism is pivotally arranged in the area of an operation table top (13) of the mobile operation table and can be pivoted and opened from a closed state to a direction away from an operator in response to the extrusion thrust of the operator so as to form an avoidance space (11); and a position signal detection mechanism installed to be able to detect and transmit an open-close position signal of the open-close mechanism so that a control unit of the mobile operation table can perform a control operation based on the open-close position signal. In addition, the invention also discloses an aerial work machine. The anti-extrusion device can provide an effective avoidance space while executing anti-extrusion operation, and has the advantages of large protection angle range, good safety and high stability.
Description
Technical Field
The invention relates to a safety protection device, in particular to an anti-extrusion device for a mobile operation table. In addition, the invention also relates to an aerial work machine.
Background
Safety of mobile consoles, typically for example, work platforms of aerial work machines, consoles or driving operation dashboard areas of ground mobile work vehicles, console areas of mobile work equipment inside buildings, etc., is of great importance.
In the operation or construction process, due to the complex operation environment, the equipment or the vehicle does not notice a large-size obstacle behind the equipment or cannot cause huge extrusion injury or even casualty accidents to operators in the mobile operation platform when the equipment or the vehicle moves backwards or backs a car or an accidental falling object impacts behind the equipment or the vehicle. For example, in the moving process of a mobile operation platform, if an operation is careless and a rear obstacle is not noticed, the situation that an operator is extruded and injured by a peripheral obstacle during operation occurs in an overhead operation machine (a tower crane, a lifter, and the like).
In order to prevent injury to the operator from such accidents or operational errors, those skilled in the art have resorted to a variety of anti-extrusion solutions. For example, WO2018089965a1, CN103380075B, CN107265365A, CN204185196U, CN105307971B, CN105339295B, FR3008404B1, CN108367902A, US9676602 and other prior art documents disclose an anti-pressing device for a mobile operation table. The prior art mobile operator station anti-jamming devices generally comprise the following types: (1) the flexible rope is matched with the magnetic adsorption type circuit breaker, and when an operator is extruded and injured, the magnetic adsorption switch is broken; (2) the push switch sends a signal when the pressure reaches a set value, and the rigid rod falls off at the same time; (3) the infrared laser sensor can send out signals when light is blocked; (4) the back is provided with a protective railing with higher height, so that physical protection of partial space is realized; (5) protecting by pressing the broken circuit of the triggered press-touch switch; (6) a rain cover with a rigid press-contact part is adopted. Besides, the prior art also has an anti-extrusion technical scheme which triggers an alarm or stops the operation of equipment by the integral movement or rotation of the rigid rod.
However, the above-mentioned prior art extrusion-proof device cannot achieve a better protection effect in practical applications without exception, and some devices even affect normal construction operations or cause more serious extrusion injury consequences.
For example, for an anti-extrusion device using a flexible rope in combination with a magnetic adsorption type circuit breaker or an anti-extrusion device using an infrared laser sensor, if the operation range of an operator is slightly large or the body of the operator is slightly unbalanced, the operation equipment can be automatically stopped, and normal construction operation is seriously affected. In order to avoid troubles, some operators often do not adsorb the magnet again after the circuit breaker falls off, even pull out the adsorption circuit breaker by oneself or artificially modify the transmitting head or the receiving head of the infrared laser sensor to another direction, so that when the barrier extrusion accident really happens, the extrusion-proof device cannot play a role in protection.
For another example, for an anti-extrusion device that employs a push switch and a rigid rod automatically drops when the pressure reaches a set value or an anti-extrusion device that employs an extrusion-triggered press-touch switch to open a circuit, such a mechanism essentially employs pressure detection, when an operator is hit by an external obstacle, the operator is greatly injured by an instantaneous impact force, the extrusion pressure often reaches a maximum value instantaneously, while the pressure detection mechanism is a rigid pressure-bearing structure essentially even though the pressure reaches the set value to stop the operation of the device, and the instantaneous peak value of the extrusion or impact pressure often exceeds the set value, which is greatly injured by the operator; secondly, when the anti-extrusion device reaches a pressure set value, the rigid rod is generally automatically dropped, and accidental injury to ground personnel caused by high-altitude falling objects on the high-altitude operation machine is sometimes serious.
If again, to setting up higher protection railing or adopting rain-proof cover etc. to prevent extrusion device at operating personnel back, what this kind of prevent extrusion device adopted is crude original rigidity protective structure relatively technically, when taking place the rear barrier striking, the impact force in the twinkling of an eye can lead to operating personnel unbalance, and operating personnel can not in time carry out the braking operation, and portable machinery or equipment still continue to move, finally protects guardrail or rain-proof cover deformation damage, probably causes serious injury to operating personnel. Such mechanical protection structures are not really active in avoiding further squeezing in the event of a collision, and ultimately not only the operating personnel, but also the entire installation or machine, are subjected to serious injury. When the impact force between a rear obstacle and operation equipment is large, the rain cover or the guard rail is often seriously deformed, and an operator is clamped between the operating instrument table top and the guard rail, so that the operator loses the possibility of escaping.
Finally, for some anti-extrusion devices which trigger an alarm or stop the operation of equipment through the integral movement or rotation of a rigid rod in the prior art, the mechanism has the large problems of small protection angle range and poor safety and stability. Meanwhile, the movement direction of some rigid rods is unreasonable in design, and some rigid rods even occupy the avoidance space of the operator in the initial stage of movement, so that the damage to the operator in the initial stage of collision is huge. In addition, the rigid rod of the mechanism moves or rotates integrally, if the stress direction is proper, the rigid rod is easy to move, but in the actual operation process, the rigid rod is often moved or rotated integrally due to the fact that an operator makes an unintentional action or touch, the equipment alarms or stops operating, and normal operation is affected.
It can be seen from the above analysis of various anti-extrusion devices in the prior art that although technicians in the field design various anti-extrusion devices, the protection effect is not ideal, some devices even affect normal construction operation or cause more serious extrusion injury consequences, most devices are complex in structure, high in cost, high in failure rate, low in stability, influence the sight, and limited in protection range, and cannot feed back the extrusion condition of operators in time. These drawbacks have led to the work of operators, particularly of aerial work machines, being dangerous, but have long been ineffectively addressed by technicians, which has been a technical problem that has limited the development of mobile work equipment or machines, particularly aerial work machines. With the development of infrastructure and industrialization, construction work accidents caused by the development of the construction work all the year round are increased year by year, and huge losses of lives and properties are caused.
In view of the above, there is a need to design a new anti-extrusion device that can overcome the above technical problems and effectively solve or alleviate the above technical problems.
Disclosure of Invention
The invention aims to solve the basic technical problem of providing an anti-extrusion device for a mobile operating platform, which can provide an effective avoidance space while executing anti-extrusion operation, and has the advantages of large protection angle range, good safety and high stability.
Further, a basic technical problem to be solved by the present invention is to provide an anti-extrusion device for a mobile console, which can not only provide an effective avoidance space while performing an anti-extrusion operation, but also have a wide protection angle range, good safety, high stability, and can effectively prevent an erroneous operation.
In addition, the invention also provides an aerial work machine, wherein the work platform of the aerial work machine can effectively prevent extrusion, has a large protection angle range, good safety and high stability, and can effectively prevent misoperation.
In order to solve the above technical problem, the present invention provides an anti-squeezing device for a mobile console, comprising: an opening and closing mechanism which is pivotally mounted on the operation table surface area of the mobile operation table and can be pivotally opened from a closed state in a direction away from an operator in response to a squeezing thrust of the operator, so as to form an avoidance space; and a position signal detection mechanism installed to be able to detect and transmit an open-close position signal of the open-close mechanism so that a control unit of the mobile operation table can perform a control operation based on the open-close position signal.
Optionally, the opening and closing mechanism is a single opening and closing mechanism comprising a single opening and closing piece, one of the left side and the right side of the operating table is hinged with one end of the opening and closing piece, and a space through which an operator can not pass is formed between the other side of the operating table and the other end of the opening and closing piece; or the opening and closing mechanism is a split opening and closing mechanism comprising paired opening and closing members, and the opening and closing members are respectively hinged to the left side and the right side of the operating table board.
Specifically, the opening and closing piece is an independent component fixed on a pivoting structural part of the opening and closing mechanism; or the opening and closing member is formed as part of a pivoting structure of the opening and closing mechanism.
As a specific selectable structural form, the opening and closing mechanism is the split opening and closing mechanism, wherein the paired opening and closing members are correspondingly hinged on the guardrails on the left side and the right side of the operating table top; or the left guardrail and the right guardrail of the operation table top are respectively fixed with a mounting bracket in a protruding way, and the opening and closing parts are hinged with the corresponding mounting brackets; or the left guardrail and the right guardrail of the operation table top are respectively provided with a pivoting mounting bracket, and the opening and closing piece is fixed on the corresponding mounting bracket or is integrated with the corresponding mounting bracket.
Preferably, the opening and closing member is a main push rod, one end of the main push rod opposite to the hinged end is a movable end, the movable ends of the main push rod paired at two sides are opposite in the closed state, wherein the movable ends are arranged as follows: the movable ends are mutually contacted or have intervals which can not be passed by human bodies of operators; or, a balance guide push rod is connected between the movable ends of the main push rods, movable guide structures are respectively formed on the left section and the right section of the balance guide push rod, and the movable ends are slidably connected to the corresponding movable guide structures.
More preferably, the movable ends are arranged to contact with each other or have a space through which an operator cannot pass, limit stoppers are mounted on two sides of the operating table corresponding to the hinge ends of the main push rods respectively, and the limit stoppers limit the main push rods on two sides to be in a closed position in the closed state; or be connected with between the expansion end of main push rod balanced guide push rod, the left and right section of this balanced guide push rod activity guide structure is along length direction's spout, the expansion end passes through sliding pin coupling assembling slidable ground and connects in corresponding the spout, both sides are mated the expansion end of main push rod is in the spout be close to balanced guide push rod central one end is in order to inject the closed position of main push rod can be in opening the in-process orientation the other end of spout slides.
Optionally, the pivot axis of the opening and closing mechanism is a vertical axis, a horizontal axis, or an angle with the horizontal plane.
As a preferred mode, the position signal detection mechanism comprises an early warning signal detection device and an operation signal detection device, wherein the early warning signal detection device transmits an early warning position signal when the opening and closing mechanism moves to an early warning position, and the control unit controls the alarm to give an alarm; and the operation signal detection device transmits a dangerous position signal when the opening and closing mechanism further moves to a dangerous position, and the control unit controls the mobile operation table to brake or move towards a safe direction.
More preferably, the early warning signal detection device and the operation signal detection device include an early warning signal trigger element, an operation signal trigger element, and an induction transmission element for inducing and transmitting an induction signal, wherein the early warning signal trigger element and the operation signal trigger element are mounted on the opening and closing member of the opening and closing mechanism so as to be capable of moving along with the opening and closing member, and the induction transmission element is mounted on the operation table top or a member connected to the periphery of the operation table top corresponding to the early warning signal trigger element and the operation signal trigger element and is electrically connected to the control unit.
Specifically, the early warning signal triggering element and the operation signal triggering element are one of a limit switch, a proximity switch, a pull switch, a contact switch and a laser ranging element, and the induction transmission element is a sensor matched with the early warning signal triggering element and the operation signal triggering element.
As a particularly preferred form of construction, the mobile station anti-squeezing means further comprises an elastic damping element mounted in correspondence with the opening and closing member of the opening and closing mechanism, the elastic damping element being predisposed to have an elastic force that keeps or resets the opening and closing mechanism in the closed state.
Preferably, the pivot structure of the opening and closing mechanism is an elastic hinge, and an elastic part in the elastic hinge forms the elastic damping element; or the elastic damping element is a torsion spring, a spring or elastic rubber arranged on the pivoting structural part.
On the basis of the technical scheme of the anti-extrusion device for the mobile operation platform, the invention also provides an aerial work machine, wherein the anti-extrusion device for the mobile operation platform comprises the anti-extrusion device for the mobile operation platform in any technical scheme.
Through the above basic technical scheme, the device for preventing the mobile operation platform from being extruded has an original pivot type opening and closing mechanism, the opening and closing member of the pivot type opening and closing mechanism is characterized in that one end or one side is a movable end or a movable side, and the movable end or the movable side of the opening and closing member of the pivot type opening and closing mechanism essentially belongs to a free end or a free side (at least belongs to a movable guide end or a movable guide side under the condition that a balance connecting piece exists). Particularly, the pivoting type opening and closing mechanism of the invention belongs to a push-open type in the movement form, when an operator is squeezed to press and touch the opening and closing piece of the opening and closing mechanism, the opening and closing piece can form a structural space similar to that of a door which is pushed open, the control unit of the anti-extrusion device receives signals and provides effective avoiding space for operators while executing anti-extrusion operation, the opening and closing piece of the pivoting type opening and closing mechanism rotates around the hinge pivot shaft, and a stress mechanism similar to a lever is actually formed, and the existence of the free end or the free side of the opening and closing part enables the opening and closing part of the opening and closing mechanism to have certain structural flexibility, the structural characteristic enables the requirements of the opening and closing piece on the stress direction to be relatively loose, and the opening and the pivoting can be effectively carried out basically in the stress direction of the extrusion pressure of the operating personnel under different dangerous conditions, so that an avoiding space is provided, and a space position change signal is formed. Under some extreme conditions, even if the collision speed is high, an operator impacts the opening and closing member instantly, the opening and closing member has certain flexibility, the pressure of the operator can be effectively buffered, the operator is protected, the injury to the operator caused by the fact that the rigid rod of the operator impacts the rigid rod instantly in the prior art is avoided, and the defect that the movable space of the operator is occupied by some rigid rods when the position of the rigid rods is changed in the prior art is also avoided.
In addition, in the preferred technical solution of the device for preventing a mobile operation platform from being squeezed, the device for preventing a mobile operation platform from being squeezed adopts a two-stage signal, the first stage is an early warning signal, and the second stage is an operation signal for controlling the mobile operation platform to brake or move in a reverse direction, so that the control unit of the mobile operation platform has a hierarchical judgment on the control operation of the mobile operation platform, and the influence on the normal operation of the mobile operation platform due to misoperation is avoided. Particularly, in a more originally-invented preferred technical scheme, the anti-extrusion device for the mobile operating platform of the invention adopts an elastic damping element, the application of the elastic damping element (especially an elastic hinge) enables the opening and closing piece to have elasticity at the position of the pivot shaft, so that the requirement of the opening and closing piece on the stress direction is looser, the opening and pivoting can be effectively carried out in all stress directions of extrusion pressure of operators under different dangerous conditions, meanwhile, the elastic damping element is preset with elasticity, so that when the operators touch by mistake, the opening and closing piece cannot be easily pivoted due to the resistance of the elastic force, the operators need to apply certain pressure to overcome the elastic resistance of the elastic damping element to pivot, and the unintentional misoperation or redundant action of the operators can be effectively prevented, The careless actions are basically slight, and an operator can find the existence of elastic resistance in time when touching the opening and closing member by mistake, so that the misoperation or the redundant action and the careless action of the operator can be corrected in time, the misoperation of the operator can be basically prevented, the working stability of the mobile operation platform is effectively improved, and the normal construction operation of the mobile operation platform is ensured.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The following drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the scope of the invention. In the drawings:
fig. 1 is a schematic view showing the overall structure of an anti-squeezing device according to a first embodiment of the present invention, in which an opening and closing mechanism is in a closed state.
Fig. 2 is a schematic view of the overall structure of the anti-squeezing device of the embodiment of fig. 1, in which the opening and closing mechanism is in an open state.
Fig. 3 is a schematic view of the overall structure of the anti-squeezing device of the embodiment of fig. 1, which shows the arrangement position of the signal elements from another angle.
Fig. 4 shows a schematic view of a construction of an anti-squeezing means's elastic damping element assembled with a pivot, which forms one form of elastic hinge, according to an embodiment of the invention.
Fig. 5 is a schematic view showing the overall structure of an anti-squeezing device according to a second embodiment of the present invention, in which an opening and closing mechanism is in a closed state.
Fig. 6 is an overall structural view of the anti-squeezing device of the embodiment of fig. 5, in which the opening and closing mechanism is in an open state.
Fig. 7 is a schematic view of the entire structure of the anti-squeezing device of the embodiment of fig. 5, which shows the arrangement position of the signal elements from another angle.
Fig. 8 is a schematic circuit diagram of a specific form adopted by the position signal detecting mechanism of the anti-squeezing device of the present invention.
Description of reference numerals:
1, mounting a bracket; 2, an elastic hinge;
3 balancing the guide push rod; 4, a main push rod;
5 an early warning signal trigger element; 6 operating a signal trigger element;
7 an inductive transmission element; 8, a sliding pin connecting component;
9, a chute; 10 limit stop blocks;
11 avoiding space; 12, a movable end;
13 an operation table top; 14, a guardrail;
15 hinge member 16 mounting holes;
17 elastic damping element 18 control unit
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description is provided for purposes of illustration and explanation and is not intended to limit the scope of the invention.
It should be noted that the mobile operation platform of the present invention refers to a position or area of various machines or equipment for controlling, driving, and manipulating by an operator, including but not limited to an operation platform of an aerial work machine, a center console of a concrete equipment, a driving operation area of a forklift truck used in a factory or other places, and the like.
Referring to fig. 1 to 7, the basic embodiment of the present invention provides a mobile console anti-squeezing device, which includes an opening and closing mechanism that is pivotally mounted in an area of a console top 13 of a mobile console to be able to pivotally open from a closed state toward a direction away from an operator in response to a squeezing thrust of the operator, thereby forming an escape space 11; and a position signal detection mechanism installed to be able to detect and transmit an open-close position signal of the open-close mechanism so that a control unit of the mobile operation table can perform a control operation based on the open-close position signal.
The extrusion-proof device for the mobile operation platform has an original pivoting type opening and closing mechanism, and the opening and closing piece of the pivoting type opening and closing mechanism is characterized in that one end or one side is a movable end 12 or a movable side. It should be particularly noted that the pivoting opening and closing mechanism of the present invention is difficult to be applied to the anti-squeezing device of the mobile operation platform in the conventional technical field of the person skilled in the art, and any component on the mobile operation platform (especially the aerial work machine) is better stable, because the movable end 12 or the movable side of the opening and closing member of the pivoting opening and closing mechanism of the present invention is essentially a free end or a free side (at least a movable guide end or a movable guide side in the case of the existence of the balance connecting piece), and the existence of the free end or the free side makes the opening and closing member of the opening and closing mechanism have certain structural flexibility, which is contrary to the conventional knowledge that the person skilled in the art strives to stabilize the component of the mobile operation platform. However, it is the original application of the pivoting opening and closing mechanism of the present invention to the moving console squeezing device that just well solves the technical problems mentioned in the background of the present application that have existed in the field for a long time.
Specifically, the pivoting type opening and closing mechanism of the invention belongs to a push-open type in motion form, when an operator is extruded and presses and touches the opening and closing piece of the opening and closing mechanism, the opening and closing piece can form a structural space similar to a door which is pushed open, so that a control unit of an anti-extrusion device can provide an effective avoiding space 11 for the operator while receiving a signal and executing anti-extrusion operation, the opening and closing piece of the pivoting type opening and closing mechanism rotates around a hinged pivot shaft, a stress mechanism similar to a lever is actually formed, and the existence of the free end or the free side of the opening and closing piece enables the opening and closing piece of the opening and closing mechanism to have certain structural flexibility, the structural characteristic enables the requirement of the opening and closing piece on the stress direction to be looser, the opening and closing piece can be effectively opened and pivoted basically in the stress direction of extrusion pressure under different dangerous conditions of the operator, and the avoiding space, the space position change signal is formed, even under some extreme conditions, the collision speed is high, but the operator instantaneously impacts the opening and closing piece, the opening and closing piece has certain flexibility, the pressure of the operator can be effectively buffered, the operator is protected, the injury to the operator caused by the rigid instantaneous impact of the rigid rod of the operator in the prior art is avoided, and the defect that the movable space of the operator is invaded when the position of some rigid rods is changed in the prior art is also avoided, so that the anti-extrusion device for the mobile operating platform has the advantages of large protection angle range, higher safety and better stability, and can effectively provide the avoiding space 11 for the operator while executing the anti-extrusion operation.
On the basis of the above-described basic embodiment of the present invention, the position signal detecting mechanism may take various forms, which may employ a single position signal detecting element. As a preferred implementation form, the anti-extrusion device of the mobile operation platform of the invention can adopt two-stage position signal detection, specifically, the position signal detection mechanism can comprise an early warning signal detection device and an operation signal detection device, wherein the early warning signal detection device transmits an early warning position signal when the opening and closing mechanism moves to an early warning position, and the control unit of the mobile operation platform controls the alarm to give an alarm; the operating signal detection means transmit a danger position signal when the opening and closing mechanism is further moved to a danger position, and the control unit controls the mobile operating platform to brake or move towards a safety direction, for example, typically in a reverse direction.
This kind of second grade signal detection form can prevent the maloperation to a certain extent on the one hand, and when operating personnel's health extrusion break-make spare pivot reachd the early warning position, the alarm is sent out in the control unit control alarm, reminds operating personnel, and operating personnel can discover the error action of oneself in time, corrects the action. On the other hand, the safety can be further improved, if the operator is passively pressed to incline forwards and downwards, and the opening and closing member reaches a dangerous position, the control unit can control the moving operation platform to brake to realize deceleration, and if necessary, even directly control the moving operation platform to move reversely (before the operator bumps an obstacle in reverse and controls the moving operation platform to move forwards in reverse), so that the operator can avoid the obstacle which bumps from the back, and the safety level is higher. That is to say, the anti-jamming device of the mobile operation platform adopts a two-stage signal, the first stage is an early warning signal, and the second stage is an operation signal for controlling the braking or reverse movement of the mobile operation platform, so that the control unit of the mobile operation platform has a hierarchical judgment on the control operation of the mobile operation platform, the influence on the normal operation of the mobile operation platform due to misoperation is avoided, and meanwhile, the anti-jamming device of the mobile operation platform has higher safety.
Referring to fig. 3 and 4, in particular, the early warning signal detection device and the operation signal detection device may include an early warning signal trigger element 5, an operation signal trigger element 6, and an induction transmission element 7 for inducing and transmitting an induction signal, wherein the early warning signal trigger element 5 and the operation signal trigger element 6 may be mounted on the opening and closing member of the opening and closing mechanism to be capable of following the opening and closing member to move, and the induction transmission element 7 may be mounted on a member connected to the periphery of the operation table top 13 or the operation table top 13 of the mobile operation table corresponding to the early warning signal trigger element 5 and the operation signal trigger element 6, and electrically connected to the control unit 18 (including wireless or wired electrical connection). It should be noted that the mobile operation platform belongs to a mobile working machine or a mobile device, and the control unit thereof is generally a conventional component, on the basis of which, the position signal detection mechanism of the present invention is electrically connected to the control unit, and the control unit is enabled to perform control operation based on the detection signal of the position signal detection mechanism, which is relatively mature in realization of control technology in light of the technical idea of the present invention. Specifically, the early warning signal triggering element 5 and the operation signal triggering element 6 may be one of a limit switch, a proximity switch, a pull switch, a contact switch and a laser ranging element, and the sensing transmission element 7 is a sensing device configured with the early warning signal triggering element 5 and the operation signal triggering element 6. Such a position detection device may be a contact type device or a noncontact type detection device, which is not easily damaged. For example, in the case that the early warning signal triggering element 5 and the operation signal triggering element 6 are proximity switches, the early warning signal triggering element 5 and the operation signal triggering element 6 may be metal devices used for triggering an induction field in the proximity switches, and the induction transmission element 7 may be an induction field forming device (i.e., a sensing device) of the proximity switches, which senses the proximity of the metal devices, and when the metal devices reach the induction field forming device, the induction field forming device senses a position signal and transmits the position signal to the control unit, so as to serve as a basis for the control of the control unit.
Referring to fig. 8, fig. 8 shows a specific form adopted by the position signal detection mechanism of the anti-squeezing device of the present invention, wherein SQ1, SQ2, SQ3 and SQ4 represent switch signal forming devices (i.e. inductive transmission elements 7) respectively corresponding to the opening and closing members at both sides of the split opening and closing mechanism, and the control unit performs warning control according to logic judgment, or reduces valve output current, or directly cuts off, or outputs reverse current, so as to control the mobile console to decelerate, brake or move towards a safe direction, such as a reverse direction or a deflection direction. The position detection and transmission technologies such as limit switches, proximity switches, pull switches, contact switches, laser ranging elements and the like are generally applied at present, the application forms are various, the line connection and the application are relatively mature, and the position detection and transmission technologies are not repeated by way of example except for the proximity switches.
Referring to fig. 3, 4 and 7, as a more unique preferred embodiment, the moving operation table anti-pressing device of the present invention may further include an elastic damping member 17 installed corresponding to the opening and closing member of the opening and closing mechanism, the elastic damping member 17 being preset to have an elastic force for keeping or returning the opening and closing mechanism in the closed state.
The unique preferred structural form is that the elastic damping element 17 is adopted in the anti-extrusion device of the mobile operation platform, so that the technical problem existing in the traditional technology is solved more effectively, specifically, the application of the elastic damping element 14 ensures that the opening and closing piece has certain elasticity at the position of the pivot shaft, so that the requirement of the opening and closing piece on the extrusion stress direction is looser, the opening and pivoting can be effectively carried out basically in all stress directions of the extrusion pressure of the operators under different dangerous conditions, the protection angle range of the anti-extrusion device of the mobile operation platform is further increased, the safety is higher, the stability is better, and meanwhile, the anti-extrusion operation can be carried out, and meanwhile, an avoidance space can be more effectively provided for the operators.
Meanwhile, the elastic damping element 17 is preset with elasticity, so that when an operator touches by mistake, the opening and closing member cannot pivot easily due to resistance of elastic force, the operator can overcome the elastic resistance of the elastic damping element 17 to pivot by applying certain pressure, the unintentional misoperation of the operator can be effectively prevented, the unintentional misoperation or redundant action and the unintentional action are basically slight, and the operator touches the opening and closing member by mistake and can detect the existence of the elastic resistance in time, so that the misoperation or the redundant action and the unintentional action of the operator can be corrected in time, the misoperation of the operator can be basically prevented, the working stability of the mobile operation platform is effectively improved, and the normal construction operation of moving to the operation platform is ensured. In addition, the elastic damping element 17 is arranged, after the safety risk avoidance of the operator, the opening and closing member of the opening and closing mechanism can automatically reset to the closing state under the elastic force action of the elastic damping element 17, so that the trouble that the anti-extrusion device in the prior art needs to be installed again or reset can be effectively avoided, the maintenance delay is sometimes caused or the operator is idle to be installed again, and the safety of the operator can not be ensured. The anti-extrusion device for the mobile operating platform is provided with the elastic damping element 17 in a special way, so that the safety and the stability of operators are further improved.
The elastic damping element 17 of the present invention may be disposed in various forms, and may be a torsion spring, a spring, or an elastic rubber, etc. disposed on the pivotal structural member, and specifically may be disposed between the fixed side and the movable side of the pivotal structural member, or may be disposed between the fixed side and the opening/closing member of the pivotal structural member. The elastic damping member 17 may be provided in various forms according to installation conditions as long as it functions to apply elastic force to the opening and closing member of the opening and closing mechanism. For example, referring to fig. 4, the pivot structure of the opening and closing mechanism may be a hinge, in which case, a torsion spring may be sleeved on the middle pivot column of the hinge as the elastic damping element 17, and two ends of the torsion spring respectively abut against two opposite pivot pieces of the hinge. As a more convenient preferred form of construction, the pivoting structure of the opening and closing mechanism may be an elastic hinge 2, in which elastic element (e.g. a rubber gasket) in the elastic hinge 2 forms the elastic damping element 17.
Within the technical idea of the above-described basic and preferred embodiments of the present invention, the opening and closing mechanism of the anti-extrusion device of the present invention and the opening and closing member thereof may have various choices according to installation needs. Specifically, the opening and closing mechanism may be a single opening and closing mechanism including a single opening and closing member, in which case one of the left and right sides of the operation table 13 is hinged to one end of the opening and closing member, and the other side is spaced from the other end of the opening and closing member by a space through which the human body of the operator cannot pass. Such a spacing should generally ensure that the operator does not pass through the spacing when leaning forward, but rather should pass through the body to contact the opening and closing member, thereby urging the opening and closing member to pivot and create a change in position. Alternatively, the opening and closing mechanism may be a split opening and closing mechanism including paired opening and closing members, in which case the opening and closing members are respectively hinged to the left and right sides of the operation table 13. In the case of the opening and closing member, it may be a separate member fixed to the pivoting structural member of the opening and closing mechanism, for example a lever fixed to the movable pivoting piece of the hinge. Of course, the opening and closing member may also be formed directly as part of the pivoting structure of the opening and closing mechanism, for example as part of the movable pivoting flap of the hinge.
Referring to fig. 1 to 3 and 5 to 7, the opening and closing mechanism is preferably a split opening and closing mechanism, since the operator is generally located right behind the operation table 13, the split opening and closing mechanism is more beneficial for the operator to touch the opening and closing member, and meanwhile, the opening and closing members on both sides are the opening and closing members with movable ends 12, so that the structure flexibility is better, the requirement on the force-bearing direction of pivoting is wider, and the safety is better. In the case of a split opening and closing mechanism, the pairs of opening and closing members may be correspondingly hinged directly to the guardrails 14 on the left and right sides of the operating table 13. Preferably, the guardrail 14 of the left and right sides of the operation table top 13 can be respectively fixed with the mounting bracket 1 in a protruding manner, so that the opening and closing member can be hinged to the corresponding mounting bracket 1, and the structural form can enable the opening and closing member to be mounted at a more suitable position through the mounting bracket 1, thereby avoiding blocking an operator from observing the instrument of the operation table top 13. Of course, the left and right side guard rails 14 of the operation table 13 may be respectively provided with the pivotal mounting brackets 1, and the opening and closing members are fixed to the corresponding mounting brackets 1 or integrally formed with the corresponding mounting brackets 1 (i.e., the opening and closing members are formed as a part of the mounting brackets 1), in which case, the mounting brackets 1 themselves are formed as pivotal structural members, so that the mounting work can be simplified.
Referring to fig. 5 to 7, the opening and closing member may be the main push rod 4, one end of the main push rod 4 opposite to the hinged end is the movable end 12, and the movable ends 12 of the main push rods 4 paired at both sides are opposite in the closed state of the opening and closing mechanism, wherein the movable ends 12 may be arranged such that the movable ends 12 contact each other or have a space through which an operator cannot pass. In this case, limit stoppers 10 may be installed at both sides of the operation table 13 corresponding to the hinge ends of the corresponding main push bars 3, respectively, and the limit stoppers 10 limit the main push bars 4 at both sides to be in the closed position in the closed state. Such a limit stop 10, in particular in the case described above with an elastic damping element 17, avoids being pushed away from the closed position by the elastic force of the elastic damping element 17 in order to define the closed position of the main push rod 4 in the closed state. The movable ends 12 of the main push rods 4 on both sides are free ends, the structure flexibility is excellent, the direction of the pivoting stress of the main push rods 4 is not strictly required, and the avoidance space 11 formed after the main push rods 4 are pressed and pivoted is wider due to the fact that the main push rods 4 pivot towards the left side and the right side, and the safety and the stability of the anti-extrusion device in the structural form are very excellent.
As another structure, referring to fig. 1 to 3, the movable ends 12 of the paired main push rods 4 at both sides are opposite to each other in the closed state of the opening and closing mechanism, the balance guide push rod 3 may be connected between the movable ends 12 of the main push rods, the left and right sections of the balance guide push rod 3 may be respectively formed with a movable guide structure, the movable ends 12 may be slidably connected to the corresponding movable guide structure, the movable guide structure may be in various forms, for example, a dovetail groove and a trapezoidal block are matched, the left and right sections of the balance guide push rod 3 are respectively provided with a sliding groove 9 along the length direction, the movable end 12 is slidably connected with the corresponding sliding groove 9 through a sliding pin connecting component 8, wherein the movable ends 12 of the main push rods 4 in the pairs at the two sides are positioned at one end of the sliding chute 9 close to the center of the balance guide push rod 3, to define the closed position of the main push rod 4 and to be able to slide towards the other end of the chute 9 during opening. The structure forms sliding connection with the movable ends 12 of the main push rods 4 on the two sides through the balance guide push rod 3, the structure flexibility is kept better, the avoidance space 11 can be formed in the opening state, and the movable ends 12 of the main push rods 4 on the two sides have certain restraint due to the adoption of the balance guide push rod 3, so that the structural stability of the anti-extrusion device is better.
Although fig. 1 to 7 show that the pivot axis of the opening and closing mechanism of the anti-extrusion device is a vertical axis, within the technical concept of the present invention, the pivot axis of the opening and closing mechanism may be a vertical axis, a horizontal axis, or an angle with the horizontal plane, which may be determined according to actual installation conditions, and it is within the scope of the present invention that the pivot structure of the opening and closing mechanism may be a hinge, a ball joint hinge, or the like. That is to say, the moving direction of the opening and closing mechanism when being pushed away is not limited to the horizontal plane, and the horizontal direction or the vertical direction can be both, wherein the horizontal direction is ± 60 ° toward the operation table 13, the force-applying direction of the opening and closing mechanism can be applied with force in multiple directions (people can trigger the opening and closing mechanism from multiple directions when being squeezed), and the vertical direction is toward the ground of the working bucket, and the elastic hinge 2 can be rotated by 90 °. It should be noted that, in both horizontal and vertical directions, in the case of the elastic hinge, the elastic hinge would be bumpy (larger in the vertical direction), so that the triggering at a certain angle needs to be limited to avoid triggering the warning signal triggering element 5 during transportation.
On the basis of the technical scheme of the anti-extrusion device, the invention also provides an aerial work machine, wherein the aerial work machine comprises the anti-extrusion device for the mobile operation platform.
While the basic embodiment and various preferred embodiments of the anti-crush device of the present invention have been described in a hierarchical manner, in order to facilitate a more thorough understanding of the technical concept and advantages of the anti-crush device of the present invention, two structural forms of the anti-crush device of the present invention, which are relatively comprehensive in relatively preferred features, are described below with reference to fig. 1 to 7.
Referring to fig. 1 to 4, the anti-extrusion device is shown in a structural form that two main push rods 4 are arranged on two sides, and a balance guide push rod 3 is connected between the movable ends 12 of the main push rods 4, wherein a mounting bracket 1 is arranged or welded on a guardrail 14, and the distance horizontally extending from an operation table top 13 to the direction of an operator is about 120mm, which can reflect the extrusion condition of the operator in time. The mounting bracket 1 may be fixedly mounted or movably connected with an adjustable manner (for example, a waist hole and a mounting bolt are adopted for connection). The pivoting structure of the main push rod 4 adopts an elastic hinge 2 which can automatically reset and apply a preload which enables the opening and closing mechanism to be in a closed state, the elastic hinge 1 can adopt standard components such as a disc spring, a spring and the like or self-made components, the elastic hinge 2 in fig. 4 is a self-made component which is similar to a spring hinge in structure and is arranged on the guardrail 14 or the mounting bracket 1, and a movable pivoting piece of the elastic hinge 2 is connected with the main push rod 4 (the movable pivoting piece is provided with a mounting hole and is connected with a bolt). The elastic hinge 2 can be vertically installed or obliquely installed, so long as an operator can push the push rod when being squeezed conveniently. The main push rod 4 can be made of metal, plastic and the like, one end of the main push rod is connected to the elastic hinge 2, the other end of the main push rod is connected with the balance guide push rod 3 through the sliding pin connecting assembly 8, the main push rod can slide along the sliding groove 9 of the balance guide push rod 3, namely, the moving range of the main push rod 4 is limited through the length of the sliding groove 9, and the length of the sliding groove can be determined according to actual conditions. Of course, the sliding pin connection assembly 8 and the elongated sliding slot 9 may be replaced by a pulley and dovetail slot/wedge slot, etc. In terms of an electrical system, the electric system comprises an early warning signal triggering element 5, an operation signal triggering element 6 and an induction transmission element 7, when the main push rod 4 moves to a certain angle, the early warning signal triggering element 5 is triggered to enable the induction transmission element 7 to generate an early warning signal, when the main push rod moves to a larger angle, the operation signal triggering element 6 is triggered to transmit a braking signal or a reverse movement signal to the control unit through the induction transmission element 7. The early warning signal trigger element 5 and the operation signal trigger element 6 are used for sending signals in different stages to the control unit according to different extrusion conditions, and two-stage signals are adopted, so that misoperation can be effectively prevented, and when an operator bends over the operation table top 13 to probe the front, the operator can remind the operator to further decelerate, and the safety level is higher. The signal detection device for realizing the above functions can be a limit switch, a proximity switch, a laser ranging device and other components, and two limit switches (playing the roles of early warning and operation respectively) are adopted in the figure and can be arranged on the periphery of the elastic hinge 2.
In the application process, when a worker is extruded, the body pushes the balance guide push rod 3, the balance guide push rod 3 drives the main push rod 4 to enable the elastic hinge 2 to rotate through the sliding groove 9 and the sliding pin connecting assembly 8, when the elastic hinge 2 rotates to a corresponding angle, the early warning signal triggering element 5 and the operation signal triggering element 6 trigger the induction transmission element 7 respectively, and the control unit sends out an early warning signal or brake deceleration control operation or reverse movement operation. In a non-working state, the balance guide push rod 3 and the main push rod 4 keep a linear closing state shown in the figure under the action of the elastic hinge 2, and the induction transmission element 7 is not acted and does not send out a signal.
The structural form of the anti-squeezing device shown in fig. 5 to 7 is basically the same as the principle of the structural form of fig. 1 to 3, except for the following: the elastic hinge 2 is pushed by adopting a structural form of a main push rod 4 and a limit stop 10 which are independent on the left side and the right side. When the staff is extruded, the body pushes the main push rod 4 to drive the elastic hinge 2 to rotate, when the elastic hinge 2 rotates to a corresponding angle, the early warning signal triggering element 5 and the operation signal triggering element 6 trigger the induction transmission element 7 respectively, and the control unit sends out an early warning signal or brake deceleration control operation or reverse movement operation. When the device is not extruded, the main push rod 4 and the elastic hinge 2 are limited by the limit stop 10, and the induction transmission element 7 is not acted and does not send a signal in the linear closing state shown in the figure. The anti-extrusion device with the preferred structure form shown in fig. 5 to 7 has no barrier in front of the main push rod 4, larger personnel avoiding space 12, larger stress direction range of the main push rod 4 and higher safety and stability.
It can be seen from the above description that the device for preventing pressing of a mobile console according to the present invention has an original pivot opening and closing mechanism, wherein the opening and closing member of the pivot opening and closing mechanism is characterized by having one end or one side thereof being a movable end or a movable side, and the movable end or the movable side of the opening and closing member of the pivot opening and closing mechanism of the present invention is essentially a free end or a free side (at least a movable guide end or a movable guide side in the case of a balanced connection member), and the presence of such a free end or free side makes the opening and closing member of the opening and closing mechanism have a certain structural flexibility. Specifically, the pivoting type opening and closing mechanism of the invention belongs to a push-open type in motion form, when an operator is extruded and presses and touches the opening and closing piece of the opening and closing mechanism, the opening and closing piece can form a structural space similar to a door which is pushed open, so that a control unit of an anti-extrusion device can provide an effective avoiding space 11 for the operator while receiving a signal and executing anti-extrusion operation, the opening and closing piece of the pivoting type opening and closing mechanism rotates around a hinged pivot shaft, a stress mechanism similar to a lever is actually formed, and the existence of the free end or the free side of the opening and closing piece enables the opening and closing piece of the opening and closing mechanism to have certain structural flexibility, the structural characteristic enables the requirement of the opening and closing piece on the stress direction to be looser, the opening and closing piece can be effectively opened and pivoted basically in the stress direction of extrusion pressure under different dangerous conditions of the operator, and the avoiding space, and forms a spatial position variation signal. Under some extreme conditions, even if the collision speed is high, an operator impacts the opening and closing member instantly, the opening and closing member has certain flexibility, the pressure of the operator can be effectively buffered, the operator is protected, the injury to the operator caused by the fact that the rigid rod of the operator impacts the rigid rod instantly in the prior art is avoided, and the defect that the movable space of the operator is occupied by some rigid rods when the position of the rigid rods is changed in the prior art is also avoided.
In addition, in the preferred technical solution of the device for preventing a mobile operation platform from being squeezed, the device for preventing a mobile operation platform from being squeezed adopts a two-stage signal, the first stage is an early warning signal, and the second stage is an operation signal for controlling the mobile operation platform to brake or move in a reverse direction, so that the control unit of the mobile operation platform has a hierarchical judgment on the control operation of the mobile operation platform, and the influence on the normal operation of the mobile operation platform due to misoperation is avoided.
Particularly, in the more originally preferred technical solution of the present invention, the anti-pressing device for a mobile console of the present invention employs an elastic damping element 17, and the application of the elastic damping element 17 (especially the elastic hinge 2) makes the opening and closing member have elasticity at the position of the pivot shaft, which makes the requirement of the opening and closing member for the force direction looser, and the opening and closing member can effectively open and pivot in all force directions of the pressing pressure of the operator under different dangerous conditions, and the elastic damping element 17 has a preset elastic force, so that when the operator touches by mistake, the opening and closing member will not easily pivot due to the resistance of the elastic force, and the operator needs to apply a certain pressure to overcome the elastic resistance of the elastic damping element to pivot, which can effectively prevent the unintended misoperation or redundant actions of the operator, The careless actions are basically slight, and an operator can find the existence of elastic resistance in time when touching the opening and closing member by mistake, so that the misoperation or the redundant action and the careless action of the operator can be corrected in time, the misoperation of the operator can be basically prevented, the working stability of the mobile operation platform is effectively improved, and the normal construction operation of the mobile operation platform is ensured. In addition, the elastic damping element 17 is arranged, after the safety risk avoidance of the operator, the opening and closing member of the opening and closing mechanism can automatically reset to the closing state under the elastic force action of the elastic damping element 17, so that the trouble that the anti-extrusion device in the prior art needs to be installed again or reset can be effectively avoided, the maintenance delay is sometimes caused or the operator is idle to be installed again, and the safety of the operator can not be ensured.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (13)
1. A mobile operator station anti-extrusion apparatus, comprising:
an opening and closing mechanism which is pivotally mounted on one or both of left and right sides of an operation table surface (13) of the mobile operation table through a pivotal structural member so as to be capable of being pivotally opened from a closed state toward a direction away from an operator in response to a squeezing thrust of the operator, thereby forming an avoidance space (11); and
and a position signal detection mechanism which is arranged at the periphery of the pivoting structural member and is installed to be capable of detecting and transmitting an opening and closing rotating position signal of the opening and closing mechanism, so that a control unit (18) of the mobile operation table can perform control operation based on the opening and closing rotating position signal.
2. The mobile console anti-jamming device of claim 1,
the opening and closing mechanism is a single opening and closing mechanism comprising a single opening and closing piece, one of the left side and the right side of the operating table board (13) is hinged with one end of the opening and closing piece, and an interval through which an operator can not pass is arranged between the other side of the operating table board and the other end of the opening and closing piece; or
The opening and closing mechanism is a split opening and closing mechanism comprising paired opening and closing pieces, and the opening and closing pieces are respectively hinged to the left side and the right side of the operating table top (13).
3. The mobile station anti-racking device of claim 2, wherein said opening member is a separate member secured to a pivoting structure of said opening and closing mechanism; or the opening and closing member is formed as part of a pivoting structure of the opening and closing mechanism.
4. The mobile console anti-jamming device of claim 2, wherein the opening and closing mechanism is the split opening and closing mechanism, wherein
The paired opening and closing members are correspondingly hinged on the guardrails (14) on the left side and the right side of the operating table top (13); or
Mounting brackets (1) are respectively fixed on the guardrails (14) on the left side and the right side of the operating table top (13) in a protruding mode, and the opening and closing parts are hinged to the corresponding mounting brackets (1); or
The guardrail (14) of the left side and the right side of the operation table board (13) are respectively provided with a pivoting mounting bracket (1), and the opening and closing piece is fixed on the corresponding mounting bracket (1) or is integrated with the corresponding mounting bracket (1).
5. A mobile operator station anti-jamming device according to claim 4, wherein the opening and closing member is a main push rod (4), the end of the main push rod (4) opposite to the hinged end is a movable end (12), the movable ends (12) of the main push rods in pairs at two sides are opposite in the closed state,
wherein the movable end (12) is arranged to: the movable ends (12) are in mutual contact or have intervals which can not be passed by human bodies of operators; or a balance guide push rod (3) is connected between the movable ends (12) of the main push rods, movable guide structures are respectively formed on the left section and the right section of the balance guide push rod (3), and the movable ends (12) are slidably connected to the corresponding movable guide structures.
6. The mobile station anti-racking device of claim 5,
the movable ends (12) are arranged to be in contact with each other or have intervals which can not be passed by human bodies of operators, limit stops (10) are respectively installed at two sides of the operating table top (13) corresponding to the hinged ends of the corresponding main push rods (4), and the limit stops (10) limit the main push rods (4) at two sides to be in a closed position in the closed state; or
Be connected with between the expansion end (12) of main push rod balanced guide push rod (3), the left and right section of this balanced guide push rod (3) activity guide structure is for following length direction's spout (9), expansion end (12) connect in corresponding through sliding pin coupling assembling (8) slidable spout (9), both sides are mated expansion end (12) of main push rod (4) are in being close to of spout (9) the one end at balanced guide push rod (3) center is in order to prescribe a limit to the closed position of main push rod (4) to can open the in-process orientation the other end of spout (9) slides.
7. The mobile console anti-jamming device according to any one of claims 1 to 6, wherein the pivot axis of the opening and closing mechanism is a vertical axis, a horizontal axis, or has an angle with a horizontal plane.
8. The mobile operation table anti-jamming device according to any one of claims 1 to 6, wherein the position signal detection mechanism comprises an early warning signal detection means and an operation signal detection means, wherein
The early warning signal detection device transmits an early warning position signal when the opening and closing mechanism moves to an early warning position, and the control unit (18) controls the alarm to give an alarm; and
the operation signal detection device transmits a dangerous position signal when the opening and closing mechanism further moves to a dangerous position, and the control unit (18) controls the mobile operation table to brake or move towards a safe direction.
9. The mobile operation platform anti-extrusion device according to claim 8, wherein the early warning signal detection means and the operation signal detection means comprise an early warning signal trigger element (5), an operation signal trigger element (6) and an induction transmission element (7) for inducing and transmitting an induction signal, wherein the early warning signal trigger element (5) and the operation signal trigger element (6) are mounted on the opening and closing member of the opening and closing mechanism so as to be capable of moving along with the opening and closing member, and the induction transmission element (7) is mounted on the operation platform surface (13) or a member connected with the periphery of the operation platform surface (13) corresponding to the early warning signal trigger element (5) and the operation signal trigger element (6) and is electrically connected to the control unit (18).
10. The mobile console crush prevention device of claim 9, wherein the early warning signal trigger element (5) and the operation signal trigger element (6) are one of a limit switch, a proximity switch, a pull switch, a contact switch and a laser ranging element, and the induction transmission element (7) is a sensing device which is matched with the early warning signal trigger element (5) and the operation signal trigger element (6).
11. The mobile console anti-jamming device according to any one of claims 1 to 6, further comprising an elastic damping element (17) installed corresponding to the opening and closing member of the opening and closing mechanism, the elastic damping element (17) being preset to have an elastic force that keeps or resets the opening and closing mechanism in the closed state.
12. The mobile operator station anti-jamming device according to claim 11, wherein the pivoting structure of the opening and closing mechanism is an elastic hinge (2), the elastic member in the elastic hinge (2) forming the elastic damping element (17); or
The elastic damping element (17) is a torsion spring, a spring or elastic rubber arranged on the pivoting structural member.
13. An aerial work machine, wherein it comprises a mobile station anti-racking device according to any of claims 1 to 12.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910941318.2A CN110723701B (en) | 2019-09-30 | 2019-09-30 | Anti-extrusion device for mobile operation platform and aerial operation machine |
| US17/260,918 US20210380384A1 (en) | 2019-09-30 | 2019-12-20 | Anti-squeezing device for mobile console, pusher-type anti-squeezing device and aerial work machine |
| CA3153192A CA3153192A1 (en) | 2019-09-30 | 2019-12-20 | Anti-squeezing device for mobile console, pusher-type anti-squeezing device and aerial work machine |
| PCT/CN2019/126986 WO2021062952A1 (en) | 2019-09-30 | 2019-12-20 | Anti-extrusion device for movable operating platform, push-rod-type anti-extrusion device, and high-altitude operation machine |
| EP19936548.7A EP3848327A4 (en) | 2019-09-30 | 2019-12-20 | Anti-extrusion device for movable operating platform, push-rod-type anti-extrusion device, and high-altitude operation machine |
| AU2019468904A AU2019468904B2 (en) | 2019-09-30 | 2019-12-20 | Anti-extrusion device for movable operating platform, push-rod-type anti-extrusion device, and high-altitude operation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910941318.2A CN110723701B (en) | 2019-09-30 | 2019-09-30 | Anti-extrusion device for mobile operation platform and aerial operation machine |
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| Publication Number | Publication Date |
|---|---|
| CN110723701A CN110723701A (en) | 2020-01-24 |
| CN110723701B true CN110723701B (en) | 2020-09-22 |
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| CN201910941318.2A Active CN110723701B (en) | 2019-09-30 | 2019-09-30 | Anti-extrusion device for mobile operation platform and aerial operation machine |
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| CN114314465A (en) * | 2021-12-30 | 2022-04-12 | 湖南星邦智能装备股份有限公司 | Anti-pinch early warning system for working fence |
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| CN110562886A (en) * | 2019-09-16 | 2019-12-13 | 浙江鼎力机械股份有限公司 | Anti-extrusion device and aerial work platform |
| CN110589729A (en) * | 2019-09-16 | 2019-12-20 | 浙江鼎力机械股份有限公司 | Anti-extrusion mechanism and operation platform thereof |
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| CN110723701A (en) | 2020-01-24 |
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Effective date of registration: 20201225 Address after: 410010 room 4110, 4th floor, office building, 677 Lugu Avenue, high tech Development Zone, Changsha City, Hunan Province Patentee after: Hunan Zoomlion intelligent aerial work machinery Co.,Ltd. Address before: 410013 No. 361 South silver basin, Changsha, Hunan, Yuelu District Patentee before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. |