CN116216603A - Lifting platform car for high-altitude operation - Google Patents
Lifting platform car for high-altitude operation Download PDFInfo
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- CN116216603A CN116216603A CN202310168994.7A CN202310168994A CN116216603A CN 116216603 A CN116216603 A CN 116216603A CN 202310168994 A CN202310168994 A CN 202310168994A CN 116216603 A CN116216603 A CN 116216603A
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- rod
- limiting
- articulated
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- piece
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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
- B66F11/042—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 actuated by lazy-tongs mechanisms or articulated levers
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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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- Structural Engineering (AREA)
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- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention relates to the technical field of lifting equipment, and discloses an overhead working lifting platform vehicle, wherein limiting rods are fixedly connected to two sides of the outer wall of a hinge column between a first hinge plate and a second hinge plate, the outer sides of the limiting rods are movably sleeved with supporting pieces, and supporting rods are fixedly connected to the top end and the bottom end of each supporting piece. According to the invention, the limiting rods are arranged on two sides of the hinge post, the limiting rods are movably sleeved with the supporting pieces, the supporting pieces are hinged with the first hinge plate and the second hinge plate respectively by the supporting rods, when the hydraulic oil cylinder suddenly fails, namely the sensor detects that the control pressure of the hydraulic system of the hydraulic oil cylinder is instantaneously reduced, the controller receives signals and electrifies the limiting rods with N-type magnetism, so that the limiting blocks are blocked by the rotation of the swinging rods, the supporting pieces are effectively prevented from moving to reduce the included angle between the first hinge plate and the second hinge plate, the stability of the lifting mechanism is improved, and accidents caused by the falling of the lifting mechanism without support are prevented.
Description
Technical Field
The invention relates to the technical field of lifting equipment, in particular to a lifting platform car for overhead operation.
Background
The lifting platform truck is lifting mechanical equipment for high-altitude operation maintenance, and one of the core structures is a lifting mechanism. The existing lifting mechanism is mainly divided into a scissor type lifting mechanism and a crank type lifting mechanism, wherein the scissor type lifting mechanism is of a multi-section hinge structure which is of an X-shaped mode, meanwhile, a hydraulic cylinder is arranged to provide sufficient jacking opening force for the hinge structure, so that the lifting mechanism can vertically lift, a working bucket can be stably operated to a high altitude, the high altitude operation of a worker is realized, and therefore, the lifting platform vehicle has the advantages of stable lifting, high bearing capacity and the like.
However, the existing lifting platform car has some defects in the use process: because hydraulic cylinder sets up on hinge structure for the extension jack-up hinge structure, when lifting platform car is in use, and hydraulic cylinder breaks down and when becoming invalid, whole "X shape" hinge structure will lose the holding power, leads to the hinge part to all draw in, fall, causes the emergence of incident.
Disclosure of Invention
Aiming at the defects of the prior lifting platform vehicle in the use process, the invention provides the lifting platform vehicle for the high-altitude operation, which has the advantages that when a hydraulic cylinder fails, a supporting piece forms a supporting effect on a first hinged plate and a second hinged plate, so that a lifting mechanism is blocked, the lifting mechanism is prevented from suddenly falling to cause a safety accident, and the technical problem in the prior art is solved.
The invention provides the following technical scheme: the utility model provides an aerial working lifting platform car, includes the automobile body, the top activity of automobile body is provided with elevating system, elevating system's top activity is provided with the work and fights, elevating system comprises first articulated slab, second articulated slab, articulated rod and articulated column, the both ends of first articulated slab are articulated through articulated rod and second articulated slab, are located two cross positions at first articulated slab and second articulated slab middle part pass through articulated column swing joint, elevating system is provided with two hydraulic cylinder, is located articulated column outer wall both sides fixedly connected with gag lever post between first articulated slab and the second articulated slab, the outside and the support piece activity of gag lever post cup joint, the equal fixedly connected with bracing piece in top and the bottom of support piece, and two bracing pieces are the diagonal setting, with the recess has been seted up on first articulated slab and the second surface that the bracing piece position corresponds, and recess inner wall fixedly connected with articulated piece, the bracing piece articulates with the articulated piece.
Preferably, the support comprises a fixed frame, two fixed plates and two telescopic films, the upper side and the lower side of the fixed frame are fixedly connected with one end of the telescopic films, the other end of the telescopic films is connected with one side of the fixed plates, the inner wall of the fixed frame is fixedly sleeved with a fixed block, the middle part of the fixed block is provided with a transverse hole, the fixed block is movably sleeved with a limiting bar through the transverse hole, the fixed block above and below the transverse hole is provided with a flat groove, a lower bar is fixedly connected between two inner walls of the flat groove, the lower bar is movably sleeved with a rotating rod, the upper wall and the lower wall of the limiting rod are fixedly connected with limiting bars, the top end of the limiting bars is provided with a track groove, one end of the rotating rod is movably sleeved with the track groove of the limiting bars, the other end of the rotating rod is movably sleeved with an upper bar, the inner wall of the fixed plate is provided with a movable groove, and the fixed plate is movably connected with the upper bar through the movable groove.
Preferably, the left and right outer walls of the limiting rod are fixedly connected with limiting blocks, the inner wall of the transverse hole corresponding to the position of the limiting block is hinged with a swinging rod, the inner wall of the transverse hole, close to one side of the swinging rod of the hinged column, is fixedly connected with a limiting piece, the other side of the swinging rod is fixedly connected with the inner wall of the transverse hole, a fixed cavity is formed in the fixed block on two sides of the limiting rod, the fixed cavity is composed of a main channel, two auxiliary channels and two inclined channels, a moving block is movably sleeved in the main channel, the inclined channels are movably sleeved with the moving rod, the moving rod is connected with the inner wall of the fixed cavity through a compression spring, and gas is filled in the space of the fixed cavity between the moving block and the moving rod.
Preferably, the limit rod is an electrified magnet and is provided with N-type magnetism when electrified, the magnetism of different sections of the limit rod is different, the magnetism of the position close to the hinge post is larger, the power on and off of the limit rod is controlled by the controller, and when a signal of suddenly reduced control pressure in the hydraulic oil cylinder is received, the controller carries out electrifying operation on the limit rod.
Preferably, the outer wall of the limit bar is adapted to the size of the transverse hole, the thickness of the limit bar is three times of the thickness of the limit block, the number of the track grooves in one support piece is four, the tracks of the two track grooves on the same side are mutually symmetrical, the two track grooves on the same upper side or the same lower side are closer to the hinge post, the distance between the two track grooves is larger, the size of the track grooves is adapted to the size of the rotating rod, and the number of the rotating rod in one support piece is four.
Preferably, the fixing frame and the fixing plate are both made of solid materials, and the telescopic film is made of flexible materials.
Preferably, the two sides of the flat groove of the fixed block are inclined planes, and the included angle between the inclined channel of the fixed cavity and the inclined plane of the flat groove is 100 degrees.
Preferably, the moving block has N-type magnetism.
Preferably, the swing rod has S-shaped magnetism, the magnetic attraction between the limit rod and the swing rod is larger than the magnetic attraction between the moving block and the swing rod, the limit piece is made of solid materials, the cross section of the limit piece is a quarter ring, the stretching piece is made of elastic rubber materials, the limit blocks are several, and the cross section of the limit block is triangular.
The invention has the following beneficial effects:
1. according to the invention, the limiting rods are arranged on two sides of the hinge post, the limiting rods are movably sleeved with the supporting pieces, the supporting pieces are respectively hinged with the first hinge plate and the second hinge plate by the aid of the supporting rods, when the hydraulic oil cylinder suddenly fails, namely the sensor detects that the control pressure of the hydraulic system of the hydraulic oil cylinder is instantaneously reduced, the controller receives signals and electrifies the limiting rods with N-type magnetism, the magnetic forces of different sections of the limiting rods are different, the swinging rods rotate to lock the limiting blocks, the supporting pieces can only move towards the hinge post and cannot move reversely, the supporting pieces are effectively prevented from moving and reducing the included angle between the first hinge plate and the second hinge plate, the stability of the lifting mechanism is improved, accidents caused by the fact that the lifting mechanism falls without support are prevented, the moving blocks move to push the moving rods to support the rotating rods, the stability of the rotating rods is further guaranteed, the supporting force of the supporting pieces is enhanced, and the locking effect of the lifting mechanism is further improved.
2. According to the invention, the supporting piece consists of the fixed frame, the fixed plate and the telescopic film, the limiting rod utilizes the limiting strip to control the rotating rod to rotate at different positions of the limiting rod, so that the height of the supporting piece is changed, the supporting piece is enabled to effectively support and clamp the first hinge plate and the second hinge plate, a stabilizing effect can be provided for the lifting mechanism when the hydraulic oil cylinder suddenly fails, accidents caused by the reduction of the included angle between the first hinge plate and the second hinge plate are prevented, meanwhile, grooves are formed in the positions of the first hinge plate and the second hinge plate hinged with the supporting rod, when the lifting mechanism is folded, the rotating rod rotates to enable the telescopic film to be compressed, the folding of the supporting piece is realized, the supporting piece with reduced volume can be stored between the two grooves, further the shrinkage space of the lifting mechanism is not occupied, and the normal work of the lifting mechanism is not influenced.
Drawings
FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic front plan view of the present invention;
FIG. 4 is a schematic view of a partial perspective view of the present invention having a first hinge plate, a second hinge plate, a stop lever and a support;
FIG. 5 is an enlarged schematic view of a portion of the structure of FIG. 4A in accordance with the present invention;
FIG. 6 is a schematic side view in cross-section of the support member of FIG. 1 taken along the line of rotation in accordance with the present invention;
FIG. 7 is a partially enlarged schematic illustration of the structure of FIG. 6B in accordance with the present invention;
FIG. 8 is a schematic side view in cross-section of a partial structure of a support member of the present invention when the volume of the support member is smaller than the support member of FIG. 1;
FIG. 9 is a schematic cross-sectional elevation view of the support member of FIG. 1 with a centerline of the stop lever as a cross-sectional line in accordance with the present invention;
FIG. 10 is a schematic top view of a cross-sectional structure of the support member of FIG. 1 taken along the line of the fixing frame;
FIG. 11 is an enlarged schematic view of a portion of the structure of FIG. 10 at C in accordance with the present invention.
In the figure: 1. a vehicle body; 11. a working bucket; 2. a first hinge plate; 20. a second hinge plate; 21. a hinge rod; 22. a hinge post; 3. a hydraulic cylinder; 31. a movable plate; 4. a limit rod; 41. a limit bar; 42. a limiting block; 5. a support; 51. a support rod; 52. a hinge; 6. a fixed frame; 61. a fixing plate; 62. a flexible membrane; 7. a fixed block; 71. a fixed cavity; 72. a moving block; 73. a moving rod; 8. a rotating rod; 81. a lower rod; 82. a pole is arranged; 9. a swinging rod; 91. a restriction member; 92. a stretching member.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, a lifting platform vehicle for high-altitude operation comprises a vehicle body 1, wherein the top end of the vehicle body 1 is movably provided with a lifting mechanism, the top end of the lifting mechanism is movably provided with a working bucket 11, the lifting mechanism consists of a first hinge plate 2, a second hinge plate 20, a hinge rod 21 and a hinge post 22, two ends of the first hinge plate 2 are hinged with the second hinge plate 20 through the hinge rod 21, two crossed positions positioned in the middle of the first hinge plate 2 and the second hinge plate 20 are movably connected through the hinge post 22, the lifting mechanism adopts an X-shaped cross shape, the stretching and folding of the first hinge plate 2 and the second hinge plate 20 can be realized, the lifting mechanism is provided with two hydraulic cylinders 3, specifically, the top end of the vehicle body 1 is hinged with one end of a lower hydraulic cylinder 3 through a movable plate 31, the other end of the lower hydraulic cylinder 3 is hinged with the second hinge plate 20 through a movable plate 31, the second hinged plate 20 hinged with the lower hydraulic cylinder 3 is hinged with one end of the upper hydraulic cylinder 3, the other end of the upper hydraulic cylinder 3 is hinged with the other second hinged plate 20 through the movable plate 31, the lifting mechanism is lifted and folded through controlling the expansion and contraction of the hydraulic cylinder 3, further, a worker can perform high-altitude operation, two sides of the outer wall of the hinged column 22 between the first hinged plate 2 and the second hinged plate 20 are fixedly connected with the limiting rod 4, the limiting rod 4 is an electrified magnet and has N-shaped magnetism, the magnetism of different sections of the limiting rod 4 is different, the magnetism of the position close to the hinged column 22 is larger, the swinging rod 9 and the moving block 72 can be controlled to move when the limiting rod 4 is electrified and is magnetized, the swinging rod 9 is clamped to the limiting rod 4, the moving block 72 pushes the moving rod 73 to support the rotating rod 8, the stability of the support piece 5 is effectively enhanced, the included angle between the first hinge plate 2 and the second hinge plate 20 is not reduced, the on-off of the limiting rod 4 is controlled by the controller, when a signal of suddenly reducing the control pressure in the hydraulic cylinder 3 is received, the controller is used for conducting the limiting rod 4, the locking operation of the limiting rod 4 and the support piece 5 is realized, the support piece 5 is enabled to provide a supporting effect on the first hinge plate 2 and the second hinge plate 20, the lifting mechanism is effectively prevented from falling caused by sudden failure of the hydraulic cylinder 3, the outer side of the limiting rod 4 is movably sleeved with the support piece 5, the supporting rods 51 are fixedly connected to the top end and the bottom end of the support piece 5, the two supporting rods 51 are diagonally arranged, grooves are formed in the surfaces of the first hinge plate 2 and the second hinge plate 20 corresponding to the positions of the supporting rods 51, the inner walls of the grooves are fixedly connected with the hinge pieces 52, and the supporting rods 51 are hinged with the hinge pieces 52.
Referring to fig. 6-9, further, the supporting member 5 is composed of a fixing frame 6 made of solid material, two fixing plates 61 made of solid material, and two flexible films 62 made of flexible material, which can deform the flexible films 62 when the supporting member 5 is compressed and contracted or stretched, and the flexible films 62 drive the two fixing plates 61 to move, changing the volume of the supporting member 5, realizing the stable supporting of the supporting member 5 on the first hinge plate 2 and the second hinge plate 20, the upper and lower sides of the fixing frame 6 are fixedly connected with one end of the flexible films 62, the other end of the flexible films 62 is connected with one side of the fixing plate 61, the inner wall of the fixing frame 6 is fixedly sleeved with a fixing block 7, the middle part of the fixing block 7 is provided with a transverse hole, and the fixing block 7 is movably sleeved with the limiting bar 41 through the transverse hole, i.e. the outer wall of the limiting bar 41 is adapted to the transverse hole in size, and the thickness of the limiting bar 41 is three times the thickness of the limiting bar 42, the stability between the limiting rod 4 and the supporting piece 5 can be improved, the horizontal height of the supporting piece 5 is always consistent when the supporting piece moves on the limiting rod 4, the first hinge plate 2 and the second hinge plate 20 are stably supported, the fixing block 7 positioned above and below the transverse hole is provided with a flat groove, the two sides of the flat groove of the fixing block 7 are inclined planes, the rotating rod 8 can rotate to be attached to the inclined plane of the flat groove, the supporting piece 5 is driven to be folded as much as possible, the storage volume of the supporting piece 5 is reduced, the folding of a lifting mechanism is not affected by the supporting piece 5, the lower rod 81 is fixedly connected between the two inner walls of the flat groove, the lower rod 81 is movably sleeved with the rotating rod 8, the number of the rotating rods 8 positioned in one supporting piece 5 is four, the rotating rod 8 is connected with the fixing plate 61 and the fixing block 7, the length of the supporting piece 5 can be controlled by controlling the rotation of the rotating rod 8, further guarantee the supporting role of support piece 5, the upper and lower outer wall fixedly connected with spacing 41 of gag lever post 4, and the track groove has been seted up on the top of spacing 41, be located the track groove quantity of a support piece 5 and be four, and be located two track groove trails mutual symmetry of one side, the one end of rotary rod 8 cup joints with the track groove activity of spacing 41, specifically, be located the same top or two track grooves of same below and be close to articulated column 22 and the distance between the two is bigger, and the size of track groove suits with the size of rotary rod 8, can adjust the rotation angle of rotary rod 8 according to the track groove, and then the height of control support piece 5, and then the size between first articulated slab 2 of adaptation all the time and the second articulated slab 20 is provided for them, and then to provide stable support, by fig. 7 and 8, when support piece 5 is close to articulated column 22, reduce the contained angle between two rotary rods 8 of top, the distance between the corresponding track groove increases, keep away from articulated column 22 when support piece 5, the contained angle between two track grooves of top increases, the corresponding rotary rod 8 reduces the contained angle, the movable plate 82 has been opened through the fixed slot 82 on the movable plate, the movable plate 61 has been opened, the movable plate 61 on the movable plate is connected.
Referring to fig. 6-8 and 10-11, further, the left and right outer walls of the limiting rod 4 are fixedly connected with a plurality of limiting blocks 42, the cross section of each limiting block 42 is triangular, so that the swinging rod 9 can be effectively clamped, the supporting member 5 is not far away from the hinge post 22, the swinging rod 9 with S-shaped magnetism is hinged to the inner wall of the transverse hole corresponding to the position of the limiting block 42, the magnetic attraction between the limiting rod 4 and the swinging rod 9 is larger than that between the moving block 72 and the swinging rod 9, when the limiting rod 4 is electrified and magnetized, the swinging rod 9 can overcome the tensile force of the stretching member 92 and the magnetic attraction between the moving block 72 and the swinging rod 9 to form an included angle of 90 degrees with the inner wall of the transverse hole according to the magnetic attraction effect of the different positions of the limiting rod 4, so that the swinging rod 9 is contacted with the limiting member 91, the limiting rod 42 is effectively clamped with the swinging rod 9, when the limiting rod 4 is not electrified, the swinging rod 9 is rotated under the action of the magnetic attraction of the moving block 72 and the tensile force of the stretching piece 92, so that the swinging rod 9 and the limiting block 42 are not clamped, the supporting piece 5 can move left and right on the limiting rod 4, the swinging rod 9 can separate from the limiting block 42 when swinging towards the stretching piece 92, the movement of the supporting piece 5 is not influenced when the swinging rod 9 rotates is effectively ensured, the limiting piece 91 made of solid materials is fixedly connected to the inner wall of a transverse hole on one side of the swinging rod 9 close to the hinging column 22, the cross section of the limiting piece 91 is a quarter ring, the swinging rod 9 can be limited, the limiting block 42 is clamped by the swinging rod 9 when the limiting rod 4 is electrified, the supporting piece 5 is prevented from moving towards the direction away from the hinging column 22, the elastic rubber stretching piece 92 is fixedly connected between the other side of the swinging rod 9 and the inner wall of the transverse hole, the swinging rod 9 can be pulled, the swinging rod 9 swings and the limiting block 42 are in a clamping state, the fixing cavity 71 is formed in the fixing block 7 positioned on two sides of the limiting rod 4, the fixing cavity 71 is formed by a main channel, two auxiliary channels and two inclined channels, the moving block 72 with N-type magnetism is movably sleeved in the main channel, the moving rod 72 is pushed to move outwards by magnetic repulsion force between the main channel and the inner wall of the fixing cavity 71 when the limiting rod 4 is electrified, the moving rod 73 is further made to form a support for the rotating rod 8, the stability of the rotating rod 8 is further improved, the supporting piece 5 is effectively prevented from being deformed under pressure and cannot provide a supporting effect for a lifting mechanism, the moving block 72 can be further moved towards the direction of the limiting rod 4 by magnetic attraction force generated between the moving block 72 and the swinging rod 9 when the limiting rod 4 is not electrified, the rotating rod 8 is not influenced, the inclined channel and the moving rod 73 are movably sleeved, the moving block 73 and the inner wall of the fixing cavity 71 is connected by a compression spring, the moving rod 73 and the moving rod 72 can be pushed to move outwards by the magnetic repulsion force between the inclined channel and the inner wall of the fixing cavity 71, the moving block 73 and the rotating rod 73 is made to move out of the rotating rod 8, and the moving rod 8 is made to move in a stable state when the moving rod 8 is made to move in a stable state, and the moving rod 8 is made to move outwards, and the moving rod is made to move in a stable state, and the whole and the moving rod is made to move in a stable state.
The working principle of the using method of the invention is as follows:
the working personnel stop the car body 1 to a position to be constructed, the working personnel enter the working bucket 11, and start the hydraulic cylinder 3, so that the hydraulic cylinder 3 controls the lifting mechanism to lift, the high-altitude operation of the working personnel is realized, the hydraulic cylinder 3 is controlled again after the operation is finished, the lifting mechanism is folded and stored, in the process, the included angle between the first hinge plate 2 and the second hinge plate 20 is continuously changed, when the lifting mechanism lifts, namely, the included angle between the first hinge plate 2 and the second hinge plate 20 is increased, the supporting piece 5 moves towards the hinge post 22 along the limiting rod 4, the two rotating rods 8 swing and gather under the limitation of the track grooves, further, the rotating rods 8 stretch the telescopic film 62 and support the fixed plate 61, the dynamic change of the volume of the supporting piece 5 is realized, the first hinge plate 2 and the second hinge plate 20 are guaranteed to be supported and protected in real time, the first hinge plate 2 and the second hinge plate 20 are blocked when the hydraulic cylinder 3 is invalid, the lifting mechanism is prevented from falling down, namely, the supporting piece 5 between the first hinge plate 2 and the second hinge plate 20 is reduced, the rotating rod 4 is prevented from moving along the limiting rod 4, the limiting groove is shortened, and the volume of the supporting piece 5 is prevented from being compressed, and stored in the opposite directions, and the supporting piece is further compressed, the supporting piece is not compressed, and the supporting piece 5 is compressed, and the supporting piece is 2 is compressed;
when the lifting platform vehicle is working and the hydraulic oil cylinder 3 suddenly fails and breaks down, the sensor detects that the control pressure of the hydraulic system of the hydraulic oil cylinder 3 is instantaneously reduced in real time, the controller receives a detection signal and controls the limiting rod 4 to be electrified, so that the limiting rod 4 has N-type magnetism, at the moment, because the magnetic attraction between the limiting rod 4 and the swinging rod 9 is larger than the magnetic attraction between the moving block 72 and the swinging rod 9, and the magnetic attraction of one end of the limiting rod 4 close to the hinge post 22 is larger, when the swinging rod 9 is positioned between the two limiting blocks 42, the included angle between the swinging rod 9 and the inner wall of the transverse hole is 90 degrees, and the swinging rod 9 is contacted with the limiting piece 91, thereby the swinging rod 9 and the limiting block 42 can clamp the supporting piece 5, the supporting piece 5 can only move towards the hinge post 22 and can not move reversely, thus effectively controlling the movement of the supporting piece 5, preventing the supporting piece 5 from moving to drive the included angle between the first hinge plate 2 and the second hinge plate 20 to be reduced, effectively limiting the rotation of the rotating rods 8, preventing the included angle between the two rotating rods 8 from becoming larger, further enabling the supporting piece 5 to provide effective supporting effect for the first hinge plate 2 and the second hinge plate 20, enabling the angle between the first hinge plate 2 and the second hinge plate 20 not to become smaller, namely realizing the blocking of the supporting piece 5 to the lifting mechanism, preventing the lifting mechanism from being folded and falling to cause safety accidents, simultaneously, magnetic repulsion force between the moving block 72 and the limiting rod 4 overcomes the magnetic attraction effect of the moving block 72 and the swinging rod 9 to push the moving block 72 to be far away from the limiting rod 4, further enabling gas to move and pushing the moving rod 73 to be outwards extended, and enabling the extending moving rod 73 to provide supporting effect for the rotating rod 8, thereby further improving the stability of the rotating rod 8 and the stability of the supporting piece 5, further, the support 5 is prevented from being deformed by being pressed, so that the safety of the lifting platform car is improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an aerial work lifting platform car, includes automobile body (1), the top activity of automobile body (1) is provided with elevating system, elevating system's top activity is provided with work fill (11), elevating system comprises first articulated slab (2), second articulated slab (20), articulated rod (21) and articulated post (22), articulated rod (21) are articulated with second articulated slab (20) through the both ends of first articulated slab (2), are located both cross position at first articulated slab (2) and second articulated slab (20) middle part are through articulated post (22) swing joint, elevating system is provided with two hydraulic cylinder (3), its characterized in that: the hinge post (22) outer wall both sides fixedly connected with gag lever post (4) that are located between first articulated slab (2) and second articulated slab (20), the outside and the support piece (5) activity of gag lever post (4) cup joint, the equal fixedly connected with bracing piece (51) of top and bottom of support piece (5), and two bracing pieces (51) are the diagonal setting, with recess has been seted up on first articulated slab (2) and second articulated slab (20) surface that bracing piece (51) position corresponds, and recess inner wall fixedly connected with hinge (52), bracing piece (51) are articulated with hinge (52).
2. An overhead working hoist trolley according to claim 1, wherein: support piece (5) comprises a fixed frame (6), two fixed plates (61), two flexible membranes (62), the upper and lower sides of fixed frame (6) and the one end fixed connection of flexible membrane (62), the other end of flexible membrane (62) is connected with one side of fixed plate (61), fixed block (7) have been cup jointed to the inner wall of fixed frame (6), the transverse bore has been seted up at the middle part of fixed block (7), and fixed block (7) are through transverse bore and spacing (41) activity cup joint, are located fixed block (7) of transverse bore upper and lower side has been seted up the flat groove, and fixedly connected with lower pole (81) between the two inner walls of flat groove, lower pole (81) and rotary rod (8) activity cup joint, the upper and lower outer wall fixedly connected with spacing (41) of gag bit (41), and the top of spacing (41) has seted up the track groove, the one end of spacing (8) and the track groove activity of spacing (41) cup joint, the other end of rotary rod (8) has seted up flat groove (82) through the movable connection of fixed plate (61) on the movable connection of rotary rod (82).
3. A lifting platform truck for overhead operations according to claim 3, wherein: the left outer wall and the right outer wall of the limiting rod (4) are fixedly connected with limiting blocks (42), the inner wall of a transverse hole corresponding to the position of each limiting block (42) is hinged with a swinging rod (9), a limiting piece (91) is fixedly connected with the inner wall of the transverse hole on one side of the swinging rod (9) close to the hinging column (22), a stretching piece (92) is fixedly connected between the other side of the swinging rod (9) and the inner wall of the transverse hole, a fixed cavity (71) is formed in the fixed block (7) on two sides of the limiting rod (4), the fixed cavity (71) is composed of a main channel, two auxiliary channels and two inclined channels, a moving block (72) is movably sleeved in the inner portion of the main channel, the inclined channels are movably sleeved with the moving rod (73), the moving rod (73) is connected with the inner wall of the fixed cavity (71) through a compression spring, and the space inside of the fixed cavity (71) between the moving block (72) and the moving rod (73) is filled with air.
4. An overhead working hoist trolley according to claim 1, wherein: the utility model discloses a hydraulic oil cylinder, including articulated post (22), gag lever post (4), electric power and control, gag lever post (4) are electromagnet, and have N type magnetism when the circular telegram, the different sections magnetism of gag lever post (4) is different, and the position magnetism that is close to articulated post (22) is bigger more, the switching on and off of gag lever post (4) is controlled by the controller, and the controller carries out circular telegram operation to gag lever post (4) when receiving the signal that control pressure suddenly reduces in hydraulic cylinder (3).
5. An overhead working hoist trolley according to claim 2, wherein: the outer wall of the limit bar (41) is suitable for the size of the transverse hole, the thickness of the limit bar (41) is three times that of the limit block (42), the number of the track grooves in one support piece (5) is four, the track tracks of the two track grooves on the same side are mutually symmetrical, the two track grooves on the same upper side or the same lower side are closer to the hinge column (22) and the distance between the two track grooves is larger, the size of the track grooves is suitable for the size of the rotating rod (8), and the number of the rotating rod (8) in one support piece (5) is four.
6. An overhead working hoist trolley according to claim 2, wherein: the fixing frame (6) and the fixing plate (61) are both made of solid materials, and the telescopic film (62) is made of flexible materials.
7. A lifting platform truck for overhead operations according to claim 3, wherein: inclined surfaces are arranged on two sides of the flat groove of the fixed block (7), and an included angle between the inclined channel of the fixed cavity (71) and the inclined surface of the flat groove is 100 degrees.
8. A lifting platform truck for overhead operations according to claim 3, wherein: the moving block (72) has N-type magnetism.
9. A lifting platform truck for overhead operations according to claim 3, wherein: the swing rod (9) is provided with S-shaped magnetism, the magnetic attraction between the limit rod (4) and the swing rod (9) is larger than the magnetic attraction between the moving block (72) and the swing rod (9), the limiting piece (91) is made of a solid material, the cross section of the limiting piece (91) is a quarter ring, the stretching piece (92) is made of elastic rubber, the limit blocks (42) are arranged in a plurality, and the cross section of the limit blocks (42) is triangular.
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| CN202310168994.7A CN116216603B (en) | 2023-02-27 | 2023-02-27 | Lifting platform car for high-altitude operation |
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| CN202310168994.7A CN116216603B (en) | 2023-02-27 | 2023-02-27 | Lifting platform car for high-altitude operation |
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| CN116216603B (en) | 2023-09-12 |
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