CN110155861B - Large-stroke maintenance elevator based on folding car - Google Patents
Large-stroke maintenance elevator based on folding car Download PDFInfo
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- CN110155861B CN110155861B CN201910485275.1A CN201910485275A CN110155861B CN 110155861 B CN110155861 B CN 110155861B CN 201910485275 A CN201910485275 A CN 201910485275A CN 110155861 B CN110155861 B CN 110155861B
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- guide rail
- pawl
- frame
- mounting
- shaft section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/023—Mounting means therefor
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a large-stroke maintenance elevator based on a folding car, which relates to the technical field of maintenance elevators and comprises the folding car, a small guide rail assembly and a large guide rail, wherein the folding car is slidably arranged on the small guide rail assembly, the small guide rail assembly is slidably arranged on the large guide rail, the large guide rail is used for being arranged on equipment to be maintained, two sides of the upper end and two sides of the lower end of the small guide rail assembly are respectively provided with a stop dog, the inner side of the small guide rail assembly is provided with a plurality of first clamping plates, two sides of the folding car are respectively provided with a first anti-falling device, the first anti-falling devices are matched with the first clamping plates, the inner side of the large guide rail is provided with a plurality of second clamping plates, two sides of the small guide rail assembly are respectively provided. The large-stroke maintenance elevator based on the folding type car can be folded to be smaller in size, is convenient to transport and carry, can be lifted to the position near a basic boarding line, and is convenient for operators to enter.
Description
Technical Field
The invention relates to the technical field of maintenance elevators, in particular to a large-stroke maintenance elevator based on a folding car.
Background
With the development of science and technology, aerial work equipment gradually appears, and when the aerial work equipment has technical faults, the overhead work equipment is high in disassembly and maintenance cost, so that a maintenance elevator is needed to convey maintenance personnel to a maintenance position safely and reliably.
Traditional maintenance elevator can occupy most space in the transportation because the car is too big, has increased cost of transportation and degree of difficulty. Meanwhile, in actual working conditions, the traditional maintenance elevator cannot realize the guiding of the car by using one guide rail due to the change of the height difference in the lifting process, so that the car cannot fall to the position near a basic ladder climbing line, and the ladder climbing difficulty of maintenance personnel is increased, therefore, the design of the foldable maintenance elevator which can reduce the ladder climbing difficulty of the maintenance personnel is necessary.
Disclosure of Invention
In order to solve the technical problems, the invention provides a large-stroke maintenance elevator based on a folding car, which can be folded to a smaller size, is convenient to transport and carry, can be lifted to the position near a basic boarding line, and is convenient for an operator to enter.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a large-stroke maintenance elevator based on a folding car, which comprises the folding car, a small guide rail assembly and a large guide rail, wherein the folding car is slidably arranged on the small guide rail assembly, the small guide rail assembly is slidably arranged on the large guide rail, the large guide rail is used for being arranged on equipment to be maintained, two sides of the upper end and two sides of the lower end of the small guide rail assembly are respectively provided with a stop dog, the inner side of the small guide rail assembly is provided with a plurality of first clamping plates, two sides of the folding car are respectively provided with a first anti-falling device, the first anti-falling devices are matched with the first clamping plates, the inner side of the large guide rail is provided with a plurality of second clamping plates, two sides of the small guide rail assembly are respectively provided with a second anti-falling device, and the second anti-falling devices are.
Preferably, the foldable car comprises a platform mounting rack and two symmetrically arranged side wall limiting devices, side frames are symmetrically hinged to two sides of the platform mounting rack, a bottom plate is hinged to the bottom of the platform mounting rack, each side frame comprises a sleeve frame, a slide rod frame and a locking part, the sleeve frames are hinged to the platform mounting rack, the slide rod frames are sleeved in the sleeve frames, the locking parts are mounted on the sleeve frames, a plurality of tenons are arranged on the bottom plate, and mortises matched with the tenons are arranged at the bottoms of the sleeve frames; the side wall limiting device comprises a side wall limiting hook and a side wall limiting stop block which are matched in structure, the side wall limiting hook is fixed in the middle of the side face of the sleeve frame, and the side wall limiting stop block is fixed in the middle of the side face of the platform mounting frame; the lower surface of the platform mounting frame is fixed with a pulley shaft, and a pulley is mounted on the pulley shaft.
Preferably, be provided with two side door lock parts on the lower surface of bottom plate, be provided with the recess on the slide bar frame, a side door lock part can realize locking with a recess when foldable car is in fold condition.
Preferably, the locking component comprises a telescopic pin mounting frame, a telescopic plate, a connecting spring and two telescopic pins, the telescopic pin mounting frame is fixed on the casing frame, the telescopic plate is arranged between the telescopic pin mounting frame and the casing frame, the connecting spring is connected with the telescopic pin mounting frame and the telescopic plate, each telescopic pin respectively penetrates through the telescopic pin mounting frame and the telescopic plate, the telescopic pins are fixedly connected with the telescopic plate, and the telescopic pins can slide along the telescopic pin mounting frame; the telescopic rod is characterized in that two first through holes are formed in the sleeve frame, one telescopic pin corresponds to one first through hole, two second through holes are formed in one end, close to the sleeve frame, of the slide rod frame, and the distance between the two second through holes is the same as that between the two first through holes.
Preferably, little guide rail subassembly includes little guide rail mounting bracket, little guide rail bracket, two lower margin mounting brackets and two lower margins, the front end fixed mounting of little guide rail is in on the little guide rail mounting bracket, the rear end fixed mounting of little guide rail is in on the little guide rail bracket, two the lower margin mounting bracket is installed the both sides of little guide rail bracket, one install one on the lower margin mounting bracket the lower margin.
Preferably, two first guiding devices are respectively installed to the both sides of foldable car, first guiding device can follow the little guide rail slides, first guiding device includes first guide pulley mounting bracket, first vertical guide pulley and two first lateral guide pulleys, first guide pulley mounting bracket is fixed in on the platform mounting bracket, first vertical guide pulley rotate install in the top surface or the bottom surface of first guide pulley mounting bracket, two first lateral guide pulley rotate install in the lateral surface of first guide pulley mounting bracket.
Preferably, three second guide devices are respectively installed on two sides of the small guide rail assembly, the second guide devices can slide along the large guide rail, each second guide device comprises a second guide wheel installation frame, a second vertical guide wheel and two second transverse guide wheels, the second guide wheel installation frame is fixed on the small guide rail assembly, the second vertical guide wheel is rotatably installed on the top surface or the bottom surface of the second guide wheel installation frame, and the two second transverse guide wheels are rotatably installed on the outer side surface of the second guide wheel installation frame.
Preferably, the first anti-falling device comprises a first pawl mounting frame, a first pawl, a first spring, a first push rod, two first mounting seats and two first pawl guide wheels, the first pawl mounting frame is fixed on the bottom surface of the folding car, the two first mounting seats are fixed on the first pawl mounting frame, the first push rod penetrates through and is slidably mounted on the two first mounting seats, the first push rod comprises a first shaft section and a second shaft section, the diameter of the first shaft section is smaller than that of the second shaft section, the first pawl is fixed at one end of the second shaft section, the first pawl extends out from the side surface of the folding car, the two first pawl guide wheels are rotatably mounted on the back of the first pawl and are distributed on two sides of the first push rod, and the first spring is sleeved on the first shaft section, and the first spring is arranged between the first mounting seat far away from the first pawl and the second shaft section.
Preferably, the second anti-falling device comprises a second pawl mounting frame, a second pawl, a second spring, a second push rod, two second mounting seats and two second pawl guide wheels, the second pawl mounting frame is fixed on the bottom surface of the small guide rail assembly, the two second mounting seats are fixed on the second pawl mounting frame, the second push rod penetrates through and is slidably mounted on the two second mounting seats, the second push rod comprises a third shaft section and a fourth shaft section, the diameter of the third shaft section is smaller than that of the fourth shaft section, one end of the fourth shaft section is fixed with the second pawl, the second pawl extends out from the side surface of the small guide rail assembly, the two second pawl guide wheels are rotatably mounted on the back of the second pawl and are distributed on two sides of the second push rod, and the second spring is sleeved on the third shaft section, and the second spring is arranged between the second mounting seat far away from the second pawl and the fourth shaft section.
Compared with the prior art, the invention has the following technical effects:
according to the large-stroke maintenance elevator based on the folding type lift car, the folding type lift car is slidably mounted on the small guide rail assembly, the small guide rail assembly is slidably mounted on the large guide rail, the large guide rail is used for being mounted on equipment to be maintained, and due to the existence of the small guide rail assembly, the folding type lift car can descend to the position below the large guide rail, so that the movement stroke of the folding type lift car is increased, the folding type lift car can descend to the position where an operator can conveniently climb, and the operator can conveniently enter. Through setting up the car into foldable, make it collapsible to less volume, convenient transportation and transport. The first anti-falling device and the second anti-falling device are arranged, so that the folding car and the small guide rail assembly have an anti-falling function when ascending, and the use safety is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a large-stroke maintenance elevator based on a folding car provided by the invention;
fig. 2 is a schematic front structure diagram of the folding type cage of the invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic view of the back structure of the folding car of the present invention;
FIG. 5 is a schematic structural view of a side wall limiting device according to the present invention;
fig. 6 is a schematic view of an axial structure of the folding car of the present invention;
FIG. 7 is an enlarged view of portion B of FIG. 6;
FIG. 8 is a schematic view of the tongue and groove structure of the present invention;
FIG. 9 is a schematic view of the tenon of the present invention;
fig. 10 is a schematic view of the folding car of the present invention after folding;
FIG. 11 is an enlarged view of section C of FIG. 10;
FIG. 12 is a schematic view of the structure of the groove of the present invention;
FIG. 13 is a schematic structural view of a side door lock plunger of the present invention;
FIG. 14 is a schematic view of the construction of the small rail assembly of the present invention;
FIG. 15 is an enlarged view of portion D of FIG. 14;
FIG. 16 is a schematic view of a first guide device according to the present invention;
FIG. 17 is a schematic view of the engagement between a first fall arrest device and a first catch plate according to the present invention;
figure 18 is a schematic view of a first fall arrest device in accordance with the present invention.
Description of reference numerals: 1. a folding car; 101. a platform mounting frame; 102. a side wall limiting device; 1021. a side wall limiting hook; 1022. a side wall limit stop; 103. a cannula frame; 1031. a first through hole; 104. a slide bar frame; 1041. a groove; 105. a locking member; 1051. a telescopic pin mounting rack; 1052. a retractable plate; 1053. a connecting spring; 1054. a telescopic pin; 106. a base plate; 107. a side door lock member; 1071. a side door lock push rod; 10711. a push rod body; 10712. a trapezoidal block; 10713. an annular projection; 1072. a side door lock spring; 1073. a push rod support; 108. a tenon; 109. mortises; 110. a pulley shaft; 111. a pulley; 2. a small guide rail assembly; 201. a small guide rail mounting rack; 202. a small guide rail; 203. a small rail bracket; 204. a ground foot mounting rack; 205. ground feet; 206. a first clamping plate; 3. a large guide rail; 4. equipment to be maintained; 5. a first guide means; 501. a first guide wheel mounting bracket; 502. a first transverse guide wheel; 503. a first vertical guide wheel; 504. a first guide wheel pin; 6. a first fall arrest device; 601. a first pawl mounting bracket; 602. a first mounting seat; 603. a first push rod; 604. a first spring; 605. a first pawl; 606. a first pawl guide wheel; 7. a second guide means; 8. a second fall arrest device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a large-stroke maintenance elevator based on a folding car, which can be folded to a smaller size, is convenient to transport and carry, can be lifted to the vicinity of a basic boarding line, and is convenient for an operator to enter.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-18, the present embodiment provides a large-stroke maintenance elevator based on a foldable car, comprising a foldable car 1, a small guide rail assembly 2 and a large guide rail 3, wherein the foldable car 1 is slidably mounted on the small guide rail assembly 2, the small guide rail assembly 2 is slidably mounted on the large guide rail 3, the large guide rail 3 is used for being mounted on a device 4 to be maintained, stoppers are mounted on both sides of the upper end and both sides of the lower end of the small guide rail assembly 2, when the foldable car 1 is lifted to the top end of the small guide rail assembly 2 or is descended to the bottom of the small guide rail assembly 2, the small guide rail assembly 2 is driven to ascend or descend by the contact of the foldable car 1 and the stoppers, due to the existence of the small guide rail assembly 2, the foldable car 1 can descend to a position below the large guide rail 3, thereby increasing the movement stroke of the foldable car 1, the access of operators is convenient; through setting up the car into foldable, make it collapsible to less volume, convenient transportation and transport. The inboard of little guide rail set 2 is provided with a plurality of first cardboard 206, first anti-falling device 6 is all installed to foldable car 1's both sides, first anti-falling device 6 cooperatees with first cardboard 206, the inboard of big guide rail 3 is provided with a plurality of second cardboards, second anti-falling device 8 is all installed to the both sides of little guide rail set 2, second anti-falling device 8 cooperatees with the second cardboard, make foldable car 1 and little guide rail set 2 have the function of preventing falling when rising through setting up first anti-falling device 6 and second anti-falling device 8, reinforcing safety in utilization. Specifically, big guide rail 3 comprises two rows of channel-section steels, and the channel-section steel screw thread is installed on treating maintenance of equipment 4, and the inside welding of channel-section steel has the second cardboard.
As shown in fig. 2-9, the folding car 1 includes a platform mounting frame 101, a bottom plate 106, two side frames and two side wall position-limiting devices 102 symmetrically arranged, the two sides of the platform mounting frame 101 are symmetrically hinged with the side frames, the bottom of the platform mounting frame 101 is hinged with the bottom plate 106, the side frames include a sleeve frame 103, a slide rod frame 104 and a locking component 105, the sleeve frame 103 is hinged on the platform mounting frame 101, the slide rod frame 104 is sleeved in the sleeve frame 103, the locking component 105 is mounted on the sleeve frame 103, the locking component 105 locks and positions the sleeve frame 103 and the slide rod frame 104 when the side frames are in an unfolded state, the bottom plate 106 is provided with a plurality of tenons 108, the bottom of the sleeve frame 103 is provided with mortises 109 matched with the tenons 108, the tenons 108 on the bottom plate 106 are clamped in the mortises 109 on the sleeve, thereby realizing the relative fixation of the side frame and the bottom plate 106; the side wall limiting device 102 comprises a side wall limiting hook 1021 and a side wall limiting stop 1022 which are matched in structure, the side wall limiting hook 1021 is fixed in the middle of the side face of the sleeve frame 103, the side wall limiting stop 1022 is fixed in the middle of the side face of the platform mounting frame 101, through the arrangement of the two side wall limiting devices 102, when the sleeve frame 103 of the folding type car 1 is unfolded to a certain degree, the side wall limiting hook 1021 and the side wall limiting stop 1022 are clamped, the sleeve frame 103 is prevented from being further unfolded, and the safety and the reliability are high. A pulley shaft 110 is fixed on the lower surface of the platform mounting frame 101, a pulley 111 is mounted on the pulley shaft 110, and when the foldable car 1 works, the traction rope can move up and down under the action of a traction machine through the pulley 111.
Specifically, the casing frame 103 comprises five horizontal pipes arranged in parallel and two vertical pipes arranged in parallel, each horizontal pipe is connected with the two vertical pipes, and the locking part 105 is mounted on any horizontal pipe; the slide rod frame 104 includes five parallel horizontal rods and a vertical rod, each horizontal rod has one end fixedly connected to the vertical rod and the other end sleeved in the horizontal tube and capable of sliding in the horizontal tube.
As shown in fig. 10 to 13, two side door lock assemblies 107 are disposed on the lower surface of the bottom plate 106, and the slide rod frame 104 is provided with a groove 1041, so that one side door lock assembly 107 can be locked with one groove 1041 when the folding car 1 is in the folded state. Specifically, the side door lock component 107 includes a side door lock push rod 1071, a side door lock spring 1072 and two push rod supports 1073, the two push rod supports 1073 are all fixed on the lower surface of the bottom plate 106, the side door lock push rod 1071 includes a push rod main body 10711 and a trapezoidal block 10712 disposed at one end of the push rod main body 10711, the trapezoidal block 10712 is detachably connected with the push rod main body 10711, an annular protrusion 10713 is disposed at one side of the push rod main body 10711 close to the trapezoidal block 10712, the push rod main body 10711 is sleeved in the two push rod supports 1073, the annular protrusion 10713 is disposed between the two push rod supports 1073, the side door lock spring 1072 is sleeved outside the push rod main body 10711, one end of the side door lock spring 1072 is fixedly connected with the annular protrusion 10713, the other end is fixedly connected with the push rod support 1073 far away from the trapezoidal block 10712, when the foldable car 1 needs to be folded, the bottom plate 106 is folded to the platform mounting frame 101 first, then the, the side door lock push rod 1071 is pushed into the groove 1041 of the sliding rod frame 104, and the folding state of the folding type car 1 is locked.
As shown in fig. 3, the locking member 105 includes a telescopic pin mounting rack 1051, a telescopic plate 1052, a connecting spring 1053 and two telescopic pins 1054, the telescopic pin mounting rack 1051 is fixed on the cannula frame 103, the telescopic plate 1052 is disposed between the telescopic pin mounting rack 1051 and the cannula frame 103, the connecting spring 1053 connects the telescopic pin mounting rack 1051 and the telescopic plate 1052, each telescopic pin 1054 penetrates through the telescopic pin mounting rack 1051 and the telescopic plate 1052, the telescopic pin 1054 is fixedly connected with the telescopic plate 1052, and the telescopic pin 1054 can slide along the telescopic pin mounting rack 1051; the tube frame 103 is provided with two first through holes 1031, one telescopic pin 1054 corresponds to one of the first through holes 1031, one end of the slide bar frame 104 close to the tube frame 103 is provided with two second through holes, and the distance between the two second through holes is the same as the distance between the two first through holes 1031. When the slide bar frame 104 slides relative to the sleeve frame 103, the connecting spring 1053 is in a compressed state, and when the folding car 1 is unfolded, the telescopic pin 1054 is engaged with the first through hole 1031 on the sleeve frame 103 and the second through hole on the slide bar frame 104 under the action of the connecting spring 1053, so that the relative position fixing of the slide bar frame 104 and the sleeve frame 103 is realized. When the folding is needed, the telescopic pin 1054 is lifted outwards, so that the slide rod frame 104 can retract into the sleeve pipe frame 103, and the bottom plate 106 and the sleeve pipe frame 103 are hinged on the platform mounting frame 101, so that the bottom plate 106 can be folded upwards, and the sleeve pipe frame 103 can be folded inwards, so that the folding function of the folding car 1 in a transportation state is realized, the occupied space is small after folding, and the transportation is convenient.
As shown in fig. 14 to 15, the small guide rail assembly 2 includes a small guide rail mounting frame 201, a small guide rail 202, a small guide rail bracket 203, two anchor mounting frames 204 and two anchors 205, the front end of the small guide rail 202 is fixedly mounted on the small guide rail mounting frame 201, the rear end of the small guide rail 202 is fixedly mounted on the small guide rail bracket 203, the two anchor mounting frames 204 are mounted on two sides of the small guide rail bracket 203, and one anchor 205 is mounted on one anchor mounting frame 204.
Two first guiding devices 5 are respectively installed on two sides of the folding car 1, the first guiding devices 5 can slide along the small guide rails 202, as shown in fig. 16, each first guiding device 5 includes a first guide wheel installation frame 501, a first vertical guide wheel 503 and two first transverse guide wheels 502, the first guide wheel installation frame 501 is fixed on the platform installation frame 101, the first vertical guide wheel 503 is rotatably installed on the top surface or the bottom surface of the first guide wheel installation frame 501, specifically, the first vertical guide wheel 503 is installed on the first guide wheel installation frame 501 through a first guide wheel pin 504, the two first transverse guide wheels 502 are rotatably installed on the outer side surface of the first guide wheel installation frame 501, and the rotating directions of the first vertical guide wheel 503 and the first transverse guide wheels 502 are the same as the moving direction of the folding car 1.
Three second guider 7 are respectively installed to little guide rail assembly 2's both sides, second guider 7 can be followed big guide rail 3 and slided, second guider 7 includes second guide pulley mounting bracket, the vertical guide pulley of second and two horizontal guide pulleys, second guide pulley mounting bracket is fixed in on little guide rail assembly 2, the vertical guide pulley of second rotates and installs in the top surface or the bottom surface of second guide pulley mounting bracket, specifically, the vertical guide pulley of second passes through the second guide pulley pin to be installed on second guide pulley mounting bracket, two horizontal guide pulleys of second rotate and install in the lateral surface of second guide pulley mounting bracket, the direction of rotation of the vertical guide pulley of second and the horizontal guide pulley of second all is the same with little guide rail assembly 2's direction of motion.
As shown in fig. 17 to 18, the first fall arrest device 6 includes a first pawl mounting bracket 601, a first pawl 605, a first spring 604, a first push rod 603, two first mounting seats 602 and two first pawl guide wheels 606, the first pawl mounting bracket 601 is fixed on the bottom surface of the foldable car 1, the two first mounting seats 602 are fixed on the first pawl mounting bracket 601, the first push rod 603 is installed on the two first mounting seats 602 in a penetrating and sliding manner, the first push rod 603 includes a first shaft section and a second shaft section, the diameter of the first shaft section is smaller than that of the second shaft section, one end of the second shaft section is fixed with the first pawl 605, the first pawl 605 extends from the side surface of the foldable car 1, the first pawl 605 is disposed in a downward inclined manner, the two first pawl guide wheels 606 are rotatably installed on the back of the first pawl 605 and distributed on two sides of the first push rod 603, the first spring 604 is sleeved on the first shaft section, and a first spring 604 is disposed between the first mount 602 and the second shaft section distal from the first pawl 605. The first pawl 605 of the first fall preventing device 6 is always in an extending state when the folding car 1 ascends and is matched with the first catch plate 206 in the small guide rail assembly 2, and the first pawl 605 can be locked in one direction due to the structure, so that the fall preventing function is realized during the ascending process, and when the folding car 1 descends, the first pawl 605 needs to be manually retracted and the first pawl 605 is in a retracted fixed state.
The second anti-falling device 8 comprises a second pawl mounting frame, a second pawl, a second spring, a second push rod, two second mounting seats and two second pawl guide wheels, the second pawl mounting frame is fixed on the bottom surface of the small guide rail assembly 2, the two second mounting seats are fixed on the second pawl mounting frame, the second push rod penetrates through and is slidably mounted on the two second mounting seats, the second push rod comprises a third shaft section and a fourth shaft section, the diameter of the third shaft section is smaller than that of the fourth shaft section, a second pawl is fixed at one end of the fourth shaft section and extends out of the side surface of the small guide rail assembly 2, the second pawl is arranged in a downward inclined mode, the two second pawl guide wheels are rotatably mounted on the back of the second pawl, and the second springs are distributed on two sides of the second push rod, the third shaft section is sleeved with the second springs, and the second springs are arranged between the second mounting seat and the fourth shaft section which are far away from the second pawl. The second pawl of the second anti-falling device 8 is always in an extending state when the folding type lift car 1 drives the small guide rail assembly 2 to ascend, and is matched with the second clamping plate in the large guide rail 3, and the second pawl can be locked in one direction due to the structure of the second pawl, so that the anti-falling function is achieved in the ascending process, and when the folding type lift car 1 drives the small guide rail assembly 2 to descend, the second pawl needs to be manually retracted and is in a retracted fixed state.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A large-stroke maintenance elevator based on a folding car is characterized by comprising the folding car, a small guide rail assembly and a large guide rail, wherein the folding car is slidably mounted on the small guide rail assembly, the small guide rail assembly is slidably mounted on the large guide rail, the large guide rail is used for being mounted on equipment to be maintained, stop blocks are mounted on two sides of the upper end and two sides of the lower end of the small guide rail assembly, a plurality of first clamping plates are arranged on the inner side of the small guide rail assembly, first anti-falling devices are mounted on two sides of the folding car, the first anti-falling devices are matched with the first clamping plates, a plurality of second clamping plates are arranged on the inner side of the large guide rail, second anti-falling devices are mounted on two sides of the small guide rail assembly, and the second anti-falling devices are matched with the second clamping plates; the foldable car comprises a platform mounting frame and two side wall limiting devices which are symmetrically arranged, side frames are symmetrically hinged to two sides of the platform mounting frame, a bottom plate is hinged to the bottom of the platform mounting frame, each side frame comprises a sleeve frame, a sliding rod frame and a locking part, the sleeve frames are hinged to the platform mounting frame, the sliding rod frames are sleeved in the sleeve frames, the locking parts are mounted on the sleeve frames, a plurality of tenons are arranged on the bottom plate, and mortises matched with the tenons are formed in the bottom of the sleeve frames; the side wall limiting device comprises a side wall limiting hook and a side wall limiting stop block which are matched in structure, the side wall limiting hook is fixed in the middle of the side face of the sleeve frame, and the side wall limiting stop block is fixed in the middle of the side face of the platform mounting frame; the lower surface of the platform mounting frame is fixed with a pulley shaft, and a pulley is mounted on the pulley shaft.
2. A folding car based long stroke maintenance elevator according to claim 1, wherein two side door lock parts are provided on the lower surface of the bottom plate, grooves are provided on the slide rod frame, and one side door lock part can be locked with one groove when the folding car is in a folded state.
3. The folding car based long-stroke maintenance elevator according to claim 2, wherein the locking component comprises a telescopic pin mounting bracket, a telescopic plate, a connecting spring and two telescopic pins, the telescopic pin mounting bracket is fixed on the casing frame, the telescopic plate is arranged between the telescopic pin mounting bracket and the casing frame, the connecting spring is connected with the telescopic pin mounting bracket and the telescopic plate, each telescopic pin respectively penetrates through the telescopic pin mounting bracket and the telescopic plate, the telescopic pins are fixedly connected with the telescopic plate, and the telescopic pins can slide along the telescopic pin mounting bracket; the telescopic rod is characterized in that two first through holes are formed in the sleeve frame, one telescopic pin corresponds to one first through hole, two second through holes are formed in one end, close to the sleeve frame, of the slide rod frame, and the distance between the two second through holes is the same as that between the two first through holes.
4. The folding car based long stroke maintenance elevator according to claim 3, wherein the small guide rail assembly comprises a small guide rail mounting bracket, a small guide rail bracket, two foot mounting brackets and two feet, the front end of the small guide rail is fixedly mounted on the small guide rail mounting bracket, the rear end of the small guide rail is fixedly mounted on the small guide rail bracket, the two foot mounting brackets are mounted on both sides of the small guide rail bracket, and one foot is mounted on one foot mounting bracket.
5. The folding car-based long-stroke maintenance elevator as claimed in claim 4, wherein two first guiding devices are mounted on each side of the folding car, the first guiding devices can slide along the small guide rails, each first guiding device comprises a first guide wheel mounting frame, a first vertical guide wheel and two first transverse guide wheels, the first guide wheel mounting frame is fixed on the platform mounting frame, the first vertical guide wheel is rotatably mounted on the top surface or the bottom surface of the first guide wheel mounting frame, and the two first transverse guide wheels are rotatably mounted on the outer side surface of the first guide wheel mounting frame.
6. The folding car based long travel maintenance elevator according to claim 5, wherein three second guide devices are installed on each side of the small guide rail assembly, the second guide devices can slide along the large guide rail, each second guide device comprises a second guide wheel installation frame, a second vertical guide wheel and two second transverse guide wheels, the second guide wheel installation frame is fixed on the small guide rail assembly, the second vertical guide wheel is rotatably installed on the top surface or the bottom surface of the second guide wheel installation frame, and the two second transverse guide wheels are rotatably installed on the outer side surface of the second guide wheel installation frame.
7. The folding car based long-stroke maintenance elevator as claimed in claim 6, wherein the first anti-falling device comprises a first pawl mounting bracket, a first pawl, a first spring, a first push rod, two first mounting seats and two first pawl guide wheels, the first pawl mounting bracket is fixed on the bottom surface of the folding car, the two first mounting seats are fixed on the first pawl mounting bracket, the first push rod is penetrated and slidably mounted on the two first mounting seats, the first push rod comprises a first shaft section and a second shaft section, the diameter of the first shaft section is smaller than that of the second shaft section, the first pawl is fixed at one end of the second shaft section, the first pawl extends out from the side surface of the folding car, the two first pawl guide wheels are rotatably mounted on the back of the first pawl, the first spring is sleeved on the first shaft section, and is arranged between the first mounting seat far away from the first pawl and the second shaft section.
8. The folding car based long-stroke maintenance elevator as claimed in claim 7, wherein the second anti-falling device comprises a second pawl mounting bracket, a second pawl, a second spring, a second push rod, two second mounting seats and two second pawl guide wheels, the second pawl mounting bracket is fixed on the bottom surface of the small guide rail assembly, the two second mounting seats are fixed on the second pawl mounting bracket, the second push rod is penetrated and slidably mounted on the two second mounting seats, the second push rod comprises a third shaft section and a fourth shaft section, the diameter of the third shaft section is smaller than that of the fourth shaft section, the second pawl is fixed at one end of the fourth shaft section, the second pawl extends from the side surface of the small guide rail assembly, the two second pawl guide wheels are rotatably mounted on the back of the second pawl, and the second spring is arranged between the second mounting seat far away from the second pawl and the fourth shaft section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485275.1A CN110155861B (en) | 2019-06-05 | 2019-06-05 | Large-stroke maintenance elevator based on folding car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485275.1A CN110155861B (en) | 2019-06-05 | 2019-06-05 | Large-stroke maintenance elevator based on folding car |
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| CN110155861A CN110155861A (en) | 2019-08-23 |
| CN110155861B true CN110155861B (en) | 2020-04-07 |
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| CN115123464A (en) * | 2021-03-25 | 2022-09-30 | 赵桂平 | Telescopic large-wheel hanging ladder packed in case |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2593562Y (en) * | 2002-11-07 | 2003-12-24 | 吴伟森 | Canvas pet cage bracket |
| JP2008174337A (en) * | 2007-01-17 | 2008-07-31 | Mitsubishi Electric Corp | Car top handrail device |
| CN107416644A (en) * | 2017-09-26 | 2017-12-01 | 杨留英 | Independent escape fire fighting ladder |
| CN207632284U (en) * | 2017-09-30 | 2018-07-20 | 东南电梯股份有限公司 | elevator |
| CN207313075U (en) * | 2017-10-27 | 2018-05-04 | 航天南湖电子信息技术股份有限公司 | One kind can fast folding maintenance platform |
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