CN105539546B - A kind of folding multistage lifting freight - Google Patents
A kind of folding multistage lifting freight Download PDFInfo
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- CN105539546B CN105539546B CN201610058410.0A CN201610058410A CN105539546B CN 105539546 B CN105539546 B CN 105539546B CN 201610058410 A CN201610058410 A CN 201610058410A CN 105539546 B CN105539546 B CN 105539546B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
- B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
- B62B3/0637—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground using flexible mechanical lifting mechanisms, e.g. ropes or chains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
- B62B2205/006—Hand-propelled vehicles or sledges being foldable or dismountable when not in use dismountable
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- Combustion & Propulsion (AREA)
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- Motorcycle And Bicycle Frame (AREA)
Abstract
本发明公开了一种可折叠式多级升降货运车，包括固定车架，升降车架，折叠手推架，升降机构，折叠定位机构，锁位机构和变速动力机构；所述固定车架的后端的两侧边上设置有手推架固定块；所述折叠手推架设置在手推架固定块上；所述折叠手推架与手推架固定块用折叠定位机构连接；所述折叠手推架上设置有升降机构；所述升降机构上设置有升降车架；所述升降机构与升降车架用锁位机构连接；所述变速动力机构设置在折叠手推架的下部；固定车架的下部设置有电池。本发明采用电力提供动力，实现多级升降及二次搬运于一体的平板小推车，减轻劳动强度，推手可以折叠，节省空间，且升降车架可以拆卸单独做小推车使用，灵活方便，可以满足不同的作业需求。
The invention discloses a foldable multi-stage lifting freight car, which comprises a fixed frame, a lifting frame, a folding trolley frame, a lifting mechanism, a folding positioning mechanism, a locking mechanism and a speed change power mechanism; The two sides of the rear end are provided with hand push frame fixing blocks; the folding hand push frame is arranged on the hand push frame fixing block; the folding hand push frame is connected with the hand push frame fixing block with a folding positioning mechanism; The trolley frame is provided with a lifting mechanism; the lifting mechanism is provided with a lifting vehicle frame; the lifting mechanism is connected with the lifting vehicle frame with a locking mechanism; the speed change power mechanism is arranged at the bottom of the folding trolley frame; The lower part of the rack is provided with batteries. The present invention adopts electric power to provide power, and realizes multi-level lifting and secondary transportation as a flat trolley, which reduces labor intensity, and the push handle can be folded to save space, and the lifting frame can be disassembled and used as a trolley alone, which is flexible and convenient. It can meet different job requirements.
Description
技术领域technical field
本发明涉及一种拥有折叠，多级升降，电动于一体的货运车。The invention relates to a freight car integrated with folding, multi-level lift and electric motor.
背景技术Background technique
目前随着网络购物的兴起，快递行业迅速扩张，这也给货运带来了很大的压力，尤其是装车，卸货及派送环节压力更为巨大。现有的一些货运小车，功能都比较简单，只能起到运货的作用，而对于一些数量比较大，比较重的快递则显得力不从心，这就需要有一种可折叠式多级升降货运车来解决这一问题。At present, with the rise of online shopping, the express delivery industry is expanding rapidly, which has also brought great pressure to freight, especially the loading, unloading and delivery links. Some existing freight trolleys have relatively simple functions and can only play the role of transporting goods, but for some relatively large and heavy express delivery, they seem unable to do what they want. This requires a foldable multi-stage lift freight trolley. fix it.
发明内容Contents of the invention
针对上述存在的技术问题，本发明的目的是：提出了一种拥有折叠，多级升降，电动于一体的货运车。In view of the above-mentioned technical problems, the object of the present invention is to propose a freight car with folding, multi-stage lifting and electric integration.
本发明的技术解决方案是这样实现的：一种可折叠式多级升降货运车，包括固定车架，升降车架，折叠手推架，升降机构，折叠定位机构，锁位机构和变速动力机构；所述固定车架底部前端设置有两个定向轮，后端设置有两个万向轮；所述固定车架的后端的两侧边上设置有手推架固定块；所述折叠手推架设置在手推架固定块上；所述折叠手推架与手推架固定块用折叠定位机构连接；所述折叠手推架上设置有升降机构；所述升降机构上设置有升降车架；所述升降机构与升降车架用锁位机构连接；所述变速动力机构设置在折叠手推架的下部，采用钢丝绳与升降机构传递动力；固定车架的下部设置有电池。The technical solution of the present invention is achieved in this way: a foldable multi-stage lift truck, including a fixed frame, a lift frame, a folding trolley frame, a lifting mechanism, a folding positioning mechanism, a locking mechanism and a variable speed power mechanism The front end of the bottom of the fixed frame is provided with two directional wheels, and the rear end is provided with two universal wheels; the two sides of the rear end of the fixed frame are provided with fixed blocks of a push frame; The frame is arranged on the fixed block of the hand push frame; the folding hand push frame is connected with the fixed block of the hand push frame by a folding positioning mechanism; the folding hand push frame is provided with a lifting mechanism; the lifting mechanism is provided with a lifting frame The lifting mechanism is connected with the lifting frame with a locking mechanism; the speed change power mechanism is arranged at the lower part of the folding trolley, and the power is transmitted by the steel wire rope and the lifting mechanism; the lower part of the fixed frame is provided with a battery.
所述升降机构包括升降杆，升降支架，受力轴承和辅助轴承；所述升降杆设置在折叠手推架上，所述升降支架设置在升降杆上，可以沿着升降杆升降，所述升降杆的下端设置有受力轴承和辅助轴承，上端设置有升降杆滑轮；在所述升降支架靠近升降杆的位置处设置也有轴承；The lifting mechanism includes a lifting rod, a lifting bracket, a stressed bearing and an auxiliary bearing; the lifting rod is arranged on a folding trolley, and the lifting bracket is arranged on the lifting rod, which can be lifted and lowered along the lifting rod. The lower end of the rod is provided with a force bearing and an auxiliary bearing, and the upper end is provided with a lifting rod pulley; a bearing is also provided at a position where the lifting bracket is close to the lifting rod;
所述锁位机构包括锁盲槽，凸锁板，锁通槽和凹锁槽；所述锁盲槽设置在凸锁板的一端；所述凸锁板依次连接锁通槽和凹锁槽，所述凸锁板设置有复位弹簧；The locking mechanism includes a blind lock groove, a convex lock plate, a lock through groove and a concave lock groove; the blind lock groove is arranged at one end of the convex lock plate; the convex lock plate is connected to the lock through groove and the concave lock groove in turn, The convex lock plate is provided with a return spring;
所述变速动力机构包括左端盖，蜗轮，蜗杆，轴承，蜗轮轴，右端盖和启动电机；所述左端盖和右端盖之间设置有蜗轮轴；所述蜗轮设置在蜗轮轴上；所述蜗轮两侧设置有轴承；所述蜗轮处设置有蜗杆；启动电机设置在蜗杆的下侧；在伸出左端盖和右端盖的蜗轮轴上设置有卷丝筒。The variable speed power mechanism includes a left end cover, a worm gear, a worm, a bearing, a worm gear shaft, a right end cover and a starting motor; a worm gear shaft is arranged between the left end cover and the right end cover; the worm gear is arranged on the worm gear shaft; the worm gear Bearings are arranged on both sides; a worm is arranged at the worm wheel; a starting motor is arranged on the lower side of the worm; a winding drum is arranged on the worm wheel shaft protruding from the left end cover and the right end cover.
优选的，所述折叠定位机构包括弹簧，活动锁块，底板和盖板；所述活动锁块设置在底板和盖板之间；所述活动锁块一端长出底板，以便伸入锁孔定位；所述活动锁块上设置有弹簧。Preferably, the folding positioning mechanism includes a spring, a movable locking block, a bottom plate and a cover plate; the movable locking block is arranged between the bottom plate and the cover plate; one end of the movable locking block protrudes from the bottom plate so as to extend into the lock hole ; The movable locking block is provided with a spring.
优选的，所述升降车架底部设置有小滚轮。Preferably, small rollers are provided at the bottom of the lift frame.
优选的，所述折叠手推架的上端均两侧设置有导向滑轮组；所述导向滑轮组包括承重滑轮和导向滑轮。Preferably, guide pulley sets are provided on both sides of the upper end of the folding trolley; the guide pulley sets include bearing pulleys and guide pulleys.
优选的，所述折叠手推架上设置有升降控制器和速度控制器。Preferably, the folding trolley is provided with a lift controller and a speed controller.
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:
本发明的一种可折叠式多级升降货运车，采用电力提供动力，实现多级升降及二次搬运于一体的平板小推车，减轻劳动强度，推手可以折叠，节省空间，且升降车架可以拆卸单独做小推车使用，灵活方便，可以满足不同的作业需求。A foldable multi-stage lifting freight car of the present invention adopts electric power to provide power, realizes multi-stage lifting and secondary transportation as a flat trolley, reduces labor intensity, push handle can be folded, saves space, and lifts the frame It can be disassembled and used as a small trolley alone, which is flexible and convenient, and can meet different operation needs.
附图说明Description of drawings
下面结合附图对本发明技术方案作进一步说明：Below in conjunction with accompanying drawing, technical solution of the present invention will be further described:
附图1为本发明的一种可折叠式多级升降货运车的使用状态结构示意图；Accompanying drawing 1 is the use state structure schematic diagram of a kind of collapsible multi-stage lift truck of the present invention;
附图2为本发明的一种可折叠式多级升降货运车的初始状态结构示意图；Accompanying drawing 2 is the initial state structure schematic diagram of a kind of collapsible multistage lift truck of the present invention;
附图3为本发明的一种可折叠式多级升降货运车的折叠状态结构示意图；Accompanying drawing 3 is a folded state structure schematic diagram of a foldable multi-stage lift truck of the present invention;
附图4为本发明的一种可折叠式多级升降货运车的升降杆结构示意图；Accompanying drawing 4 is the structural schematic diagram of the elevating pole of a kind of collapsible multi-stage elevating freight car of the present invention;
附图5为本发明的一种可折叠式多级升降货运车的升降支架和锁位机构位置结构示意图；Accompanying drawing 5 is a schematic diagram of the position structure of the lifting bracket and the locking mechanism of a foldable multi-stage lift truck of the present invention;
附图6为本发明的一种可折叠式多级升降货运车的折叠定位机构结构状态示意图；Accompanying drawing 6 is a schematic diagram of the structural state of the folding positioning mechanism of a foldable multi-stage lift truck of the present invention;
附图7为本发明的一种可折叠式多级升降货运车的锁位机构结构状态示意图；Accompanying drawing 7 is a schematic diagram of the structural state of the locking mechanism of a foldable multi-stage lift truck of the present invention;
附图8为本发明的一种可折叠式多级升降货运车的变速动力机构结构示意图。Accompanying drawing 8 is a structural schematic diagram of a variable speed power mechanism of a foldable multi-stage lift truck of the present invention.
其中：1、固定车架，2、升降车架，3、折叠手推架，4、升降机构，5、折叠定位机构，6、锁位机构，7、变速动力机构，8、手推架固定块，9、电池，11、定向轮，12、万向轮，21、小滚轮，31、换向滑轮组，41、升降杆，42、升降支架，43、受力轴承，44、辅助轴承，45、升降杆滑轮，51、弹簧，52、活动锁块，53、底板，54、盖板，61、锁盲槽，62、凸锁板，63、锁通槽，64、凹锁槽，71、左端盖，72、蜗轮，73、蜗杆，74、轴承，75、蜗轮轴，76、右端盖，77、启动电机，78、卷丝筒，311、承重滑轮，312、导向滑轮。Among them: 1. Fixed frame, 2. Lifting frame, 3. Folding trolley frame, 4. Lifting mechanism, 5. Folding positioning mechanism, 6. Locking mechanism, 7. Variable speed power mechanism, 8. Fixed trolley frame Block, 9, battery, 11, directional wheel, 12, universal wheel, 21, small roller, 31, reversing pulley block, 41, lifting rod, 42, lifting bracket, 43, stressed bearing, 44, auxiliary bearing, 45 , lifting rod pulley, 51, spring, 52, movable lock block, 53, bottom plate, 54, cover plate, 61, blind lock groove, 62, convex lock plate, 63, lock through groove, 64, concave lock groove, 71, Left end cover, 72, worm gear, 73, worm screw, 74, bearing, 75, worm gear shaft, 76, right end cover, 77, starter motor, 78, reel, 311, bearing pulley, 312, guide pulley.
具体实施方式Detailed ways
下面结合附图来说明本发明。The present invention is described below in conjunction with accompanying drawing.
如附图1-8所示为本发明所述的一种可折叠式多级升降货运车，包括固定车架1，升降车架2，折叠手推架3，升降机构4，折叠定位机构5，锁位机构6和变速动力机构7；所述固定车架1底部前端设置有两个定向轮11，后端设置有两个万向轮12；所述固定车架1的后端的两侧边上设置有手推架固定块8；所述折叠手推架3设置在手推架固定块8上；所述折叠手推架3与手推架固定块8用折叠定位机构5连接；所述折叠手推架3上设置有升降机构4；所述升降机构4上设置有升降车架2，所述升降车架2底部设置有小滚轮21；所述升降机构4与升降车架2用锁位机构6连接；所述变速动力机构7设置在折叠手推架3的下部，采用钢丝绳与升降机构4传递动力；固定车架1的下部设置有电池9；所述折叠手推架3的上端均两侧设置有导向滑轮组31；所述换向滑轮组31包括承重滑轮311和导向滑轮312；所述折叠手推架上设置有升降控制器32和速度控制器33，并与变速动力机构7电联接。Shown in accompanying drawing 1-8 is a kind of collapsible multi-stage lift truck of the present invention, comprises fixed vehicle frame 1, lifting vehicle frame 2, folding trolley frame 3, lifting mechanism 4, folding positioning mechanism 5 , a locking mechanism 6 and a variable speed power mechanism 7; the front end of the bottom of the fixed frame 1 is provided with two directional wheels 11, and the rear end is provided with two universal wheels 12; the two sides of the rear end of the fixed frame 1 The hand push frame fixing block 8 is arranged on it; the folding hand push frame 3 is arranged on the hand push frame fixing block 8; the folding hand push frame 3 is connected with the hand push frame fixing block 8 with a folding positioning mechanism 5; The folding trolley frame 3 is provided with a lifting mechanism 4; the lifting mechanism 4 is provided with a lifting frame 2, and the bottom of the lifting frame 2 is provided with a small roller 21; the lifting mechanism 4 and the lifting frame 2 are locked The gear mechanism 6 is connected; the variable speed power mechanism 7 is arranged on the lower part of the folding trolley frame 3, and a steel wire rope is used to transmit power with the lifting mechanism 4; the lower part of the fixed frame 1 is provided with a battery 9; the upper end of the folding trolley frame 3 Both sides are provided with guide pulleys 31; the reversing pulleys 31 include load-bearing pulleys 311 and guide pulleys 312; connect.
所述升降机构4包括升降杆41，升降支架42，受力轴承43和辅助轴承44；所述升降杆41设置在折叠手推架3上，所述升降支架42设置在升降杆41上，可以沿着升降杆41升降，所述升降杆41的下端设置有受力轴承43和辅助轴承44，上端设置有升降杆滑轮45；在所述升降支架42靠近升降杆的位置处设置也有轴承43。Described elevating mechanism 4 comprises elevating rod 41, elevating support 42, stressed bearing 43 and auxiliary bearing 44; Lifting along the lifting rod 41, the lower end of the lifting rod 41 is provided with a bearing 43 and an auxiliary bearing 44, and the upper end is provided with a lifting rod pulley 45; a bearing 43 is also provided at the position of the lifting rod 42 near the lifting rod.
所述折叠定位机构5包括弹簧51，活动锁块52，底板53和盖板54；所述活动锁块52设置在底板53和盖板54之间；所述活动锁块52一端长出底板53，以便伸入锁孔定位；所述活动锁块52上设置有弹簧51。The folding positioning mechanism 5 includes a spring 51, a movable locking block 52, a bottom plate 53 and a cover plate 54; the movable locking block 52 is arranged between the bottom plate 53 and the cover plate 54; one end of the movable locking block 52 grows out of the bottom plate 53 , so as to extend into the locking hole for positioning; the movable locking block 52 is provided with a spring 51 .
所述锁位机构6包括锁盲槽61，凸锁板62，锁通槽63和凹锁槽64；所述锁盲槽61设置在凸锁板62的一端；所述凸锁板62依次连接锁通槽63和凹锁槽64，所述凸锁板62设置有复位弹簧。The locking mechanism 6 includes a blind lock groove 61, a convex lock plate 62, a lock through groove 63 and a concave lock groove 64; the blind lock groove 61 is arranged at one end of the convex lock plate 62; the convex lock plate 62 is sequentially connected The locking groove 63 and the concave locking groove 64, the convex locking plate 62 is provided with a return spring.
所述变速动力机构7包括左端盖71，蜗轮72，蜗杆73，轴承74，蜗轮轴75，右端盖76和启动电机77；所述左端盖71和右端盖76之间设置有蜗轮轴75；所述蜗轮72设置在蜗轮轴75上；所述蜗轮72两侧设置有轴承74；所述蜗轮72处设置有蜗杆73；启动电机77设置在蜗杆73的下侧；在伸出左端盖71和右端盖76的蜗轮轴上设置有卷丝筒78。Described variable speed power mechanism 7 comprises left end cover 71, worm gear 72, worm screw 73, bearing 74, worm gear shaft 75, right end cover 76 and starting motor 77; Described left end cover 71 and right end cover 76 are provided with worm gear shaft 75; The worm wheel 72 is arranged on the worm wheel shaft 75; the two sides of the worm wheel 72 are provided with bearings 74; the worm wheel 72 is provided with a worm 73; The worm gear shaft of the cover 76 is provided with a winding drum 78 .
当需要使用升降功能时，变速动力机构7通过蜗轮72和蜗杆73配合，改变启动电机77的转速力矩及方向，带动卷丝筒78转动，通过换向滑轮组31换向导向，通过升降杆滑轮45换向增速，获得足够的力量及速度，实现两级升降。启动电机77，经过变速转向装置10，将力传递给卷丝筒12，钢丝绳13经过换向滑轮组31和升降杆滑轮45带动升降杆41，升降支架42向上移动，升降支架42上设置有升降车架2，所以升降支架42也随之上升。当需要将折叠手推架3折叠时，将活动锁块52拉出锁孔，将凸锁板62拉回锁盲槽61即可实现将折叠手推架3折叠。如果需要单独使用升降车架2时，将凸锁板62拉回锁盲槽61，即可使升降车架2与升降架42分离，单独做小推车使用，若要复原，将升降车架2的锁扣部分对准升降支架42的锁扣，将凸锁板62放回即可。采用升降控制器32和速度控制器33来控制升降台的运动状态，速度及微调。当需要使用时，按下升降控制器32上的电源开关，按住“升”按钮即可上升，放开则停止，按住“降”按钮即可下降。按住速度控制器33 上的“快”按钮即可加速，按住“慢”按钮即可减速。旋动旋钮则可以调节整体速度。When the lifting function needs to be used, the speed change power mechanism 7 cooperates with the worm wheel 72 and the worm 73 to change the rotational speed torque and direction of the starting motor 77, and drives the winding drum 78 to rotate, and the reversing pulley block 31 is used to reverse the direction, and the elevating rod pulley 45 Reverse the speed increase to obtain enough power and speed to realize two-stage lifting. Start the motor 77, through the variable speed steering device 10, the power is transmitted to the winding drum 12, the steel wire rope 13 drives the lifting rod 41 through the reversing pulley block 31 and the lifting rod pulley 45, the lifting bracket 42 moves upward, and the lifting bracket 42 is provided with a lifting car frame 2, so the elevating support 42 also rises thereupon. When the folding hand pushing frame 3 needs to be folded, the movable locking block 52 is pulled out of the lock hole, and the convex locking plate 62 is pulled back to the blind locking groove 61 to realize the folding of the folding hand pushing frame 3 . If you need to use the lifting frame 2 separately, the convex lock plate 62 is pulled back to the blind lock groove 61, so that the lifting frame 2 can be separated from the lifting frame 42, and it can be used as a dolly independently. The lock part of 2 is aligned with the lock part of lifting bracket 42, and the convex lock plate 62 is put back and gets final product. Adopt lifting controller 32 and speed controller 33 to control the motion state, speed and fine-tuning of lifting platform. When needs are used, press the power switch on the lift controller 32, press the "rise" button to rise, release it to stop, press the "fall" button to descend. Press and hold the "fast" button on the speed controller 33 to speed up and the "slow" button to slow down. Turn the knob to adjust the overall speed.
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.
Claims (5)
- A kind of 1. folding multistage lifting freight, it is characterised in that：Including fixed vehicle frame, liftable automotive chassis, hand push frame is folded, Elevating mechanism, folding locator mechanism, locking mechanism and variable-speed dynamic mechanism；The fixed bottom of frame front end is provided with two and determined To wheel, rear end is provided with two universal wheels；Hand push frame fixed block is provided with two sides of the rear end of the fixed vehicle frame；It is described Hand push frame is folded to be arranged on hand push frame fixed block；The folding hand push frame is connected with hand push frame fixed block with folding locator mechanism Connect；Elevating mechanism is provided with the folding hand push frame；Liftable automotive chassis is provided with the elevating mechanism；The elevating mechanism with Liftable automotive chassis is connected with locking mechanism；The variable-speed dynamic mechanism is arranged on the bottom for folding hand push frame, using steel wire rope with rising Descending mechanism passing power；The bottom of fixed vehicle frame is provided with battery；The elevating mechanism includes elevating lever, lifting support, and bearing；The elevating lever, which is arranged on, to be folded on hand push frame, described Lifting support is arranged on elevating lever, can be along lifter rod lifting, and the lower end of the elevating lever is provided with stress bearing and auxiliary Bearing is helped, upper end is provided with elevating lever pulley；Being set in the lifting support close to the opening position of elevating lever also has bearing；The locking mechanism includes lock blind slot, convex jam plate, locks groove and recessed locked groove；The lock blind slot is arranged on the one of convex jam plate End；The convex jam plate is sequentially connected lock groove and recessed locked groove, the convex jam plate are provided with back-moving spring；The variable-speed dynamic mechanism includes left end cap, worm gear, worm screw, bearing, worm-wheel shaft, right end cap and startup motor；The left side Worm-wheel shaft is provided between end cap and right end cap；The worm gear is arranged on worm-wheel shaft；The worm gear both sides are provided with bearing；Institute State and worm screw is provided with worm gear；Start the downside that motor is arranged on worm screw；Set on the worm-wheel shaft for stretching out left end cap and right end cap It is equipped with curled hair cylinder.
- A kind of 2. folding multistage lifting freight according to claim 1, it is characterised in that：The folding localization machine Structure includes spring, movable closing piece, bottom plate and cover plate；The movable closing piece is arranged between bottom plate and cover plate；The movable closing piece One end grows bottom plate, to stretch into lockhole positioning；Spring is provided with the movable closing piece.
- A kind of 3. folding multistage lifting freight according to claim 1, it is characterised in that：The liftable automotive chassis bottom Portion is provided with trundle.
- A kind of 4. folding multistage lifting freight according to claim 1, it is characterised in that：The folding hand push frame The equal both sides in upper end be provided with leading block group；The leading block group includes load-bearing pulley and leading block.
- A kind of 5. folding multistage lifting freight according to claim 1, it is characterised in that：The folding hand push frame On be provided with lifting controller and speed control.
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| CN105819233B (en) * | 2016-06-08 | 2018-09-18 | 韶关学院 | A kind of quick handling lorry |
| CN106004942B (en) * | 2016-06-28 | 2018-05-25 | 西安建筑科技大学 | A kind of multiple changing type express delivery classification and travelling bogie |
| CN109057379B (en) * | 2018-09-07 | 2020-06-30 | 王兴忠 | High-altitude falling object blocking fence for building construction |
| CN110758507B (en) * | 2019-12-10 | 2021-12-14 | 安徽浦进轨道装备有限公司 | Small trolley convenient to fold for rail high-speed rail |
| CN111791747A (en) * | 2020-07-02 | 2020-10-20 | 湖南农业大学 | A foldable trolley for a pure electric vehicle with a drawer-type chassis to realize quick power exchange |
| CN111923973B (en) * | 2020-08-17 | 2022-05-24 | 山西迈杰模具制造有限公司 | Storage box of new energy automobile battery mould with ventilation structure |
| CN114475748B (en) * | 2022-03-01 | 2022-11-11 | 无锡职业技术学院 | Foldable automobile tire transferring frame |
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