WO2024011585A1 - Chariot élévateur à fourche manuel - Google Patents

Chariot élévateur à fourche manuel Download PDF

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Publication number
WO2024011585A1
WO2024011585A1 PCT/CN2022/105965 CN2022105965W WO2024011585A1 WO 2024011585 A1 WO2024011585 A1 WO 2024011585A1 CN 2022105965 W CN2022105965 W CN 2022105965W WO 2024011585 A1 WO2024011585 A1 WO 2024011585A1
Authority
WO
WIPO (PCT)
Prior art keywords
forks
frame
transverse direction
guide rod
manual forklift
Prior art date
Application number
PCT/CN2022/105965
Other languages
English (en)
Chinese (zh)
Inventor
孙宝锋
Original Assignee
孙宝锋
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 孙宝锋 filed Critical 孙宝锋
Priority to PCT/CN2022/105965 priority Critical patent/WO2024011585A1/fr
Publication of WO2024011585A1 publication Critical patent/WO2024011585A1/fr

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Classifications

    • 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
    • B62B3/0618—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 fluid lifting mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/14—Understructures, i.e. chassis frame on which a vehicle body may be mounted of adjustable length or width
    • 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements

Definitions

  • This application relates to the technical field of forks, in particular to a manual forklift.
  • Manual forklifts are mainly used for loading, unloading, stacking and short-distance transportation of palletized goods. They are indispensable handling equipment in pallet transportation and container transportation.
  • a manual forklift has two forks, which are used to carry the pallet together to transport the goods on the pallet to a designated location.
  • the distance between the two forks of the existing manual forklift cannot be continuously adjusted, but can only be adjusted to a limited number of sizes. Therefore, it cannot adapt to a variety of pallets of different sizes, causing inconvenience.
  • the purpose of this application is to provide a manual forklift to solve the problem that the distance between the two forks of the existing manual forklift cannot be continuously adjusted.
  • An embodiment of the present application provides a manual forklift, which defines mutually perpendicular transverse directions, longitudinal directions and vertical directions.
  • the manual forklift includes: a frame, defining a position along the vertical direction passing through the frame. The vertical centerline of the center in the transverse direction; two lead screws, relatively independently and rotatably provided on the frame, the two lead screws are respectively arranged along the transverse direction and are respectively located in the vertical direction Opposite sides of the centerline; two slide blocks, respectively threadedly connected with the two screws, and the rotation of the screw drives the slide blocks to move along the transverse direction; two cargo forks, respectively, along the The two cargo forks are arranged in the longitudinal direction and are respectively located on opposite sides of the vertical centerline.
  • the two cargo forks are respectively fixedly connected to the two slide blocks; wherein, the rotation of any of the screws causes the slider threadedly connected with it to rotate.
  • the block moves along the transverse direction, and the movement of the slide block drives the fork connected thereto to move in a direction closer to or away from the vertical centerline to continuously adjust the distance between the two forks. spacing.
  • the embodiment of this application achieves continuous stepless adjustment of the distance between the two forks by arranging threaded screws and sliders, so that it can adapt to a variety of pallets of different sizes and is easy to use;
  • the embodiment of the present application facilitates independent adjustment of the positions of the two forks by setting two independent screws. Compared with the solution that can only adjust the positions of the two forks at the same time, it is more flexible and convenient to use.
  • Figure 1 is a front view of a manual forklift according to an embodiment of the present application when the forks are in a lower position;
  • Figure 2 is a front view of a manual forklift according to an embodiment of the present application when the forks are in a higher position;
  • Figure 3 is a left side view of a manual forklift according to an embodiment of the present application.
  • Figure 4 is a top view of a manual forklift according to an embodiment of the present application when the distance between two forks is small;
  • Figure 5 is a top view of a manual forklift according to an embodiment of the present application when the distance between two forks is large;
  • Figure 6 is a bottom view of a manual forklift according to an embodiment of the present application.
  • Figure 7 is a perspective view of a manual forklift according to an embodiment of the present application.
  • Figure 8 is a schematic diagram of the accommodation space of a manual forklift according to an embodiment of the present application.
  • Figure 9 is an exploded schematic diagram of the lifting wheel assembly and the drawbar of the manual forklift according to an embodiment of the present application.
  • Figure 10 is a schematic structural diagram of the swing arm of a manual forklift according to an embodiment of the present application.
  • an embodiment of the present application provides a manual forklift 100.
  • the manual forklift 100 defines a transverse direction W, a longitudinal direction S and a vertical direction H that are perpendicular to each other, where the transverse direction W can be understood as a forklift
  • the width direction, the longitudinal direction S can be understood as the length direction of the forklift, and the vertical direction H can be understood as the height direction of the forklift.
  • the manual forklift 100 in the embodiment of the present application includes a support wheel 101 (also called a front wheel), two sets of lifting wheels 102 (also called a rear wheel), a push rod 103, two forks 104 and a truck.
  • Frame 105 the support wheel 101 is located in front of the vehicle frame 105, and the two sets of lifting wheels 102 are respectively located under the rear ends of the two cargo forks 104.
  • the support wheels 101 and the lifting wheels 102 jointly support the vehicle frame 105 and the two cargo forks 104.
  • the push rod 103 is disposed in front of the frame 105 and above the support wheel 101.
  • the upper end of the push rod 103 is provided with a handle 106 to facilitate the operator to push and pull the push rod 103.
  • the frame 105 supports the fork 104, has a center in the transverse direction, and defines a vertical centerline passing through the center of the frame 105 in the vertical direction.
  • the two forks 104 are respectively arranged along the longitudinal direction and located at opposite sides of the vertical centerline.
  • the manual forklift 100 in the embodiment of the present application also includes two screws 107 and two slide blocks 108 .
  • the two screws 107 are relatively independent and rotatably provided on the frame 105.
  • the two screws 107 are respectively arranged in the transverse direction and located on opposite sides of the vertical center line. In other words, the two screws 107
  • the axial direction is parallel to said transverse direction.
  • the two lead screws 107 can only rotate around their own central axes, but cannot move along their own axial direction.
  • the two slide blocks 108 are threadedly connected to the two lead screws 107 respectively, and the rotation of the lead screws 107 causes the slide blocks 108 to move in the transverse direction.
  • the two cargo forks 104 are respectively fixedly connected to the two slide blocks 108 so as to be able to move in the transverse direction along with the slide blocks 108 .
  • the rotation of any one of the screws 107 causes the slider 108 threadedly connected to it to move in the lateral direction.
  • the movement of the slider 108 drives the cargo fork 104 connected to it to move in a direction closer to or away from the vertical centerline to continuously adjust the two sides.
  • the distance between the forks 104 (as shown in Figures 4 and 5).
  • the slider 108 connected to it moves in a direction away from the vertical centerline, thereby increasing the distance between the two forks 104; by rotating the screw 107 counterclockwise, , causing the slider 108 connected thereto to move in a direction close to the vertical centerline, thereby reducing the distance between the two forks 104 .
  • the embodiment of the present application realizes the continuous stepless adjustment of the distance between the two forks 104 by arranging the threaded screw 107 and the slider 108, so that it can adapt to a variety of pallets of different sizes and is very convenient to use.
  • the embodiment of the present application provides two independent screws 107 to facilitate independent adjustment of the positions of the two forks 104.
  • it is more flexible and convenient to use.
  • you can only adjust the position of the other fork 104, thereby adjusting the distance between the two forks 104.
  • Purpose when the solution that can only adjust two forks 104 at the same time, when the above situation is encountered, one fork 104 restricted by the obstacle will hinder the movement of the other fork 104, resulting in the movement of the two forks 104.
  • the position cannot be adjusted and is inconvenient to use.
  • the spacing between the two forks 104 is anywhere from 16 inches to 27 inches, such as 18 inches, 20 inches, 23 inches, or 25 inches.
  • the adjustable spacing range between the two forks 104 can also be set to other numerical ranges according to actual needs, such as setting the minimum spacing to less than 16 inches, and/or setting the maximum spacing to greater than 27 inches.
  • the manual forklift 100 also includes a first guide rod 109.
  • the first guide rod 109 is fixed on the frame 105 and is disposed in the transverse direction.
  • the first guide rod 109 passes through two sliders.
  • the block 108 is used to guide the two slide blocks 108 to move in the transverse direction, and to limit the rotation of the slide blocks 108 with the lead screw 107 .
  • the number of first guide rods 109 may be two, and the two first guide rods 109 guide two slide blocks 108 respectively.
  • the number of the first guide rod 109 may also be one.
  • the one first guide rod 109 guides the two slide blocks 108 at the same time.
  • the length of the first guide rod 109 is not less than the longest sliding length of the two slide blocks 108. sum of distances.
  • the manual forklift 100 further includes two drawbars 110 (shown in Figure 6).
  • the two drawbars 110 are respectively disposed on the two forks 104 in the longitudinal direction. bottom, and are respectively connected to the lifting wheel assembly provided below the cargo fork 104.
  • the lifting wheel assembly includes the aforementioned lifting wheel 102.
  • two connecting sleeves 111 respectively connected to the two drawbars 110 and a second guide for guiding the connecting sleeves 111 to slide in the transverse direction are also provided.
  • Rod 112 (shown in Figure 8).
  • the second guide rod 112 is fixed on the vehicle frame 105 and is arranged in the transverse direction.
  • the two connecting sleeves 111 are slidably sleeved outside the second guide rod 112 and are respectively connected with the two sliding sleeves.
  • the position of the block 108 corresponds to that at least part of each connecting sleeve 111 extends into the corresponding sliding block 108 .
  • the connecting sleeve 111 can move synchronously with the slider 108 .
  • the slider 108 can push the connecting sleeve 111 to slide synchronously along the second guide rod 112 .
  • One end of the two drawbars 110 is rotatably connected to the two connecting sleeves 111 respectively, and the other end of the two drawbars 110 is rotatably connected to the lifting wheel assembly, so the drawbar 110 can follow the connecting sleeves 111, the slider 108 and the cargo fork. 104 moves synchronously in the transverse direction, so that the fork 104 and its linked components move more smoothly.
  • the number of the second guide rods 112 may be two, and the two second guide rods 112 guide the two connecting sleeves 111 respectively.
  • the number of the second guide rod 112 may also be one.
  • the one second guide rod 112 guides the two connecting sleeves 111 at the same time.
  • the length of the second guide rod 112 is not less than the longest sliding distance of the two connecting sleeves 111. sum of distances.
  • the manual forklift 100 further includes a support base 113 , a hydraulic pump 114 , a swing arm 115 and at least one third guide rod 116 .
  • the support wheel 101 is rotatably disposed below the support base 113
  • the push rod 103 is swingably disposed above the support base 113 .
  • the hydraulic pump 114 is fixed above the support base 113.
  • the hydraulic pump 114 has a hydraulic rod 117 arranged in the vertical direction.
  • the hydraulic rod 117 is connected to the frame 105.
  • the hydraulic rod 117 moves upward in the vertical direction.
  • the drive frame 105 and the two forks 104 are raised, so that the forks 104 can lift the pallet.
  • the hand-held handle 106 repeatedly presses the push rod 103, and the push rod 103 drives the hydraulic rod 117 to move upward, thereby raising the two cargo forks 104.
  • one end 118 of the swing arm 115 is rotatably connected to the support base 113, and the other end 119 of the swing arm 115 is rotatably connected to the second guide rod 112.
  • the second guide rod 112 is rotated.
  • the rod 112 moves upward along the vertical direction with the frame 105.
  • the other end 119 of the swing arm 115 also rises, and the one end 118 of the swing arm 115 is limited by the support base 113 and has a constant height, so it is equivalent to The swing arm 115 swings downward around the second guide rod 112 .
  • the third guide rod 116 is fixed on the other end 119 of the swing arm 115.
  • the third guide rod 116 is arranged in the transverse direction and passes through the two connecting sleeves 111.
  • the two connecting sleeves 111 are connected to the third connecting sleeve 111.
  • Three guide rods 116 are slidably fitted.
  • the function of the third guide rod 116 is to, on the one hand, guide the connecting sleeve 111 to slide smoothly in the transverse direction together with the second guide rod 112, and on the other hand, transmit the swing motion of the swing arm 115 to the traction rod 110 through the connecting sleeve 111, so that the traction rod 110 can be pulled.
  • Rod 110 drives the lifting wheel assembly to rotate.
  • FIG 9 shows the structure of the lift wheel assembly.
  • the lifting wheel assembly includes a swing rod 120 and a lifting wheel 102.
  • One end 121 of the swing rod 120 is rotationally connected to the other end of the drawbar 110, and the other end 122 of the swing rod 120 is rotationally connected to the lifting wheel 102;
  • the swing rod A part between the two ends of the swing rod 120 is rotationally connected with the fork 104 to form a pivot part 123.
  • the pivot part 123 is close to one end 121 of the swing rod 120 and away from the other end 122 of the swing rod 120; one end 121 of the swing rod 120 is located at The front side of the pivot portion 123 (as shown in Figure 1).
  • the vehicle frame 105 includes a frame 124 , a cover 125 and a partition 126 .
  • the frame 124 is provided with two chutes 127 corresponding to the two cargo forks 104 respectively.
  • the two chutes 127 respectively extend in the transverse direction.
  • the two cargo forks 104 are respectively slidingly connected to the two chutes 127.
  • the chutes 127 are opposite to the cargo.
  • the guidance and support of the fork 104 makes the movement of the fork 104 in the transverse direction smoother.
  • the sliding connection method between the fork 104 and the chute 127 is that a sliding plate 128 is provided on the side of the chute 127 facing away from the fork 104.
  • the sliding plate 128 is connected to the fork 104 through bolts 129 passing through the chute 127.
  • the bolts 129 can slide along the chute 127, thereby realizing the sliding connection between the fork 104 and the chute 127.
  • the cover plate 125 is fixed above the frame 124, and a receiving space 130 is formed between the cover plate 125 and the frame 124 (as shown in Figure 3).
  • the rod 109, the second guide rod 112 and the third guide rod 116 are all arranged in the accommodation space 130 to make the appearance of the forklift cleaner.
  • the shape of the cover 125 is an inverted V shape or an isosceles trapezoid.
  • the partition 126 is arranged along the vertical centerline in the accommodation space 130.
  • the partition 126 is fixedly connected to the frame 124 and the cover 125 respectively.
  • the partition 126 is used to support the two lead screws 107, the first Guide rod 109 and second guide rod 112 .
  • one end of the two screws 107 is connected to the side wall of the cover plate 125, and the other end is connected to the partition plate 126.
  • the first guide rod 109 and the second guide rod 112 pass through the partition plate 126 or are connected to the partition plate 126.
  • the partition 126 may be a vertical plate or an H-shaped plate frame formed by connecting multiple plates.
  • each slider 108 has two front pawls 131 and at least one rear pawl 132 .
  • the two front claws 131 are spaced apart in the transverse direction.
  • the two front claws 131 are respectively located on opposite sides of the corresponding connecting sleeve 111 and slide with the second guide rod 112.
  • the advantage of this arrangement is that on the one hand, the two front claws 131 can slide
  • the block 108 can push the connecting sleeve 111 to slide in the transverse direction through the two front claws 131.
  • the second guide rod 112 can support and guide the movement of the slider 108 to make the slider 108 move more smoothly.
  • the rear claw 132 slides and cooperates with the guide groove 133 provided in the transverse direction on the frame 105.
  • the guide groove 133 can also support and guide the movement of the slider 108, making the slider 108 move more smoothly.
  • the manual forklift 100 further includes a manually operable rotating handle 134.
  • the rotating handle 134 is detachably connected to the screw 107 to drive the screw 107 to rotate. Since the rotating handle 134 is detachably connected to the lead screw 107, when there is no need to adjust the distance between the two forks 104, the rotating handle 134 can be removed from the forklift to shorten the overall width of the forklift.
  • the number of the rotating handle 134 may be one, and the rotating handle 134 may be connected to any one of the lead screws 107 .
  • the number of rotating handles 134 may also be two to be connected to the two lead screws 107 respectively.
  • one of the rotary handle 134 and the lead screw 107 is provided with a non-circular slot 135 and the other is provided with a non-circular plug 136.
  • the rotary handle 134 is connected through a plug-in fit between the plug and the slot. It is connected to the screw 107, so the rotating handle 134 can be connected or separated from the screw 107 by plugging and unplugging, and the operation is simple and convenient.
  • the shape of the non-circular socket 135 and the non-circular plug 136 may be polygonal or other non-circular shapes.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

Chariot élévateur à fourche manuel, comprenant : un cadre définissant une ligne centrale verticale qui traverse, dans une direction verticale, le centre du cadre dans une direction transversale ; deux vis-mères relativement séparées l'une de l'autre et disposées de manière rotative sur le cadre, les deux vis-mères étant agencées dans la direction transversale et situées sur deux côtés opposés de la ligne centrale verticale, respectivement ; deux blocs coulissants en liaison filetée avec les deux vis-mères, respectivement, la rotation des vis-mères entraînant le déplacement des blocs coulissants dans la direction transversale ; et deux fourches agencées dans une direction longitudinale et situées sur les deux côtés opposés de la ligne centrale verticale, respectivement, les deux fourches étant reliées de manière fixe aux deux blocs coulissants, respectivement. La distance entre les deux fourches du chariot élévateur à fourche manuel de la présente demande peut être réglée en continu, de sorte que le chariot élévateur à fourche manuel soit pratique à utiliser.
PCT/CN2022/105965 2022-07-15 2022-07-15 Chariot élévateur à fourche manuel WO2024011585A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/105965 WO2024011585A1 (fr) 2022-07-15 2022-07-15 Chariot élévateur à fourche manuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/105965 WO2024011585A1 (fr) 2022-07-15 2022-07-15 Chariot élévateur à fourche manuel

Publications (1)

Publication Number Publication Date
WO2024011585A1 true WO2024011585A1 (fr) 2024-01-18

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PCT/CN2022/105965 WO2024011585A1 (fr) 2022-07-15 2022-07-15 Chariot élévateur à fourche manuel

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB729461A (en) * 1952-06-11 1955-05-04 Yale & Towne Mfg Co Improvements relating to pallet trucks
FR2810613A1 (fr) * 2000-06-22 2001-12-28 Loc Manutention Dispositif a leviers de renvoi pour le relevage des fourches d'un chariot de type transpalette
US20070116548A1 (en) * 2005-11-18 2007-05-24 Cooper David A Fork-type pallet-lifting device
CN104671154A (zh) * 2013-11-27 2015-06-03 铜陵市精品工具模具有限责任公司 一种叉车用自动调节式货叉
CN111498755A (zh) * 2020-05-29 2020-08-07 青岛宇方机器人工业股份有限公司 一种具备货叉自动调整功能的叉车
CN109896469B (zh) * 2019-04-08 2020-09-25 杭叉集团股份有限公司 托盘搬运车
CN114314447A (zh) * 2022-01-27 2022-04-12 王福业 一种多功能货叉架及叉车

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB729461A (en) * 1952-06-11 1955-05-04 Yale & Towne Mfg Co Improvements relating to pallet trucks
FR2810613A1 (fr) * 2000-06-22 2001-12-28 Loc Manutention Dispositif a leviers de renvoi pour le relevage des fourches d'un chariot de type transpalette
US20070116548A1 (en) * 2005-11-18 2007-05-24 Cooper David A Fork-type pallet-lifting device
CN104671154A (zh) * 2013-11-27 2015-06-03 铜陵市精品工具模具有限责任公司 一种叉车用自动调节式货叉
CN109896469B (zh) * 2019-04-08 2020-09-25 杭叉集团股份有限公司 托盘搬运车
CN111498755A (zh) * 2020-05-29 2020-08-07 青岛宇方机器人工业股份有限公司 一种具备货叉自动调整功能的叉车
CN114314447A (zh) * 2022-01-27 2022-04-12 王福业 一种多功能货叉架及叉车

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