Scissor fork double deep position three-way fork head and three-way fork truck

Abstract

The utility model belongs to the technical field of fork truck, specifically discloses a kind of double deep position three-way fork head with scissor fork, including cab component, portal component being located on cab component, bridge component and rotating scissor fork component being located on bridge component;The bridge component includes bridge body and first driving element being located on bridge body, and the first driving element is used to drive rotating scissor fork component to rotate.The utility model provides a kind of double deep position three-way fork head with scissor fork, and second driving element is used to drive scissor holder to extend or retract, so it can be applicable to the use of warehouse dense storage area, specifically, scissor holder structure is driven by second driving element and stably, reliably extends or retracts, and can extend the pallet fork installed at the end of telescopic assembly to the storage position of adjacent shelf, which enables fork truck to directly access the goods of adjacent shelf in front or side of current shelf without moving itself.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a three-way fork with a double-deep scissor fork and a three-way forklift. Background Technology

[0002] Three-way stacker forklifts are a highly specialized and efficient type of warehouse forklift designed specifically for extremely narrow aisles to maximize warehouse space utilization. Through their unique 180° mast rotation, they enable direct lateral stacking and picking within extremely narrow aisles, making them a key piece of equipment in intensive warehousing and logistics.

[0003] Chinese invention patent CN113173526A discloses a fork assembly and a three-way stacker truck, including a cab that is vertically and flexibly connected to the main mast via rollers; a mast assembly that is movably and tightly connected to the upper and lower ends of the cab to form a simply supported structure. The upper and lower ends of the cab provide lateral and vertical support for the mast assembly. A bridge assembly is movably engaged with the mast assembly at one end. By placing the mast at the rear in a simply supported installation, the support points are located above and below the cab components, resulting in a large support distance. After the forks are loaded, the mast experiences minimal deflection and deformation, and the forks have a small tilt after loading, ensuring high safety when stacking goods. Simultaneously, by connecting the fork assembly to a scissor fork structure with rotation and telescopic functions, the forks can be driven to extend and retract independently beyond the lateral movement mechanism, greatly increasing the fork lateral movement distance and preventing the entire vehicle body from getting too close to goods or shelves, thus increasing the safety distance. However, this fork assembly has the following problems in actual use:

[0004] 1. For example Figures 1 to 2 As shown, the warehouse has multiple rows of shelves, with stacking aisles between adjacent rows. Initially, the forklift is located in stacking aisle 1 701. When goods need to be stacked onto stacking shelf 2 702, the forklift 703 needs to exit stacking aisle 1 701 and enter stacking aisle 2 704 before it can operate, which is inefficient. With the increasing cost of land use and the growing number of warehouses with high storage capacity, the existing three-way stacking forklift technology cannot solve the stacking problem of the goods (right half) in the figure.

[0005] 2. When using a rotating scissor fork, the forks flex and deform significantly when fully extended, causing severe fork buckling. This makes it easy for goods to fall or collide with shelves during stacking, resulting in low safety.

[0006] In summary, the forklift fork assembly in the existing technology suffers from low stacking efficiency and poor safety. Utility Model Content

[0007] This invention provides a three-way fork with a double-deep scissor fork, which can solve the problems of low stacking efficiency and poor safety of forklift fork assembly in the prior art.

[0008] In a first aspect, this utility model provides a three-way fork head with a double-deep scissor fork, including a cab component, a mast component, a bridge component, and a rotating scissor fork component disposed on the bridge component. The mast component is movably disposed on the cab component, and the mast component is further provided with a chain lifting assembly, which is used to drive the bridge component to lift.

[0009] The cable tray component includes a cable tray body and a first driving member disposed on the cable tray body, the first driving member being used to drive the rotating scissor fork component to rotate.

[0010] The rotating scissor fork component includes a rotating frame, a telescopic assembly mounted on the rotating frame, and a fork carriage. The fork carriage is mounted on the telescopic assembly on the side away from the rotating frame, and the rotating frame is also provided with a second driving component.

[0011] The telescopic assembly includes two opposing scissor arms, and the second drive member is used to drive the scissor arms to extend or retract.

[0012] Furthermore, the scissor arm includes a first connecting arm, a second connecting arm, a third connecting arm, and a fourth connecting arm. One end of the first connecting arm is rotatably connected to the rotating frame, and the other end of the first connecting arm is hinged to the second connecting arm. One end of the third connecting arm is rotatably connected to the rotating frame, and the other end of the third connecting arm is hinged to the fourth connecting arm.

[0013] The middle positions of the first connecting arm and the third connecting arm are hinged together to form a first X-shaped cross structure, and the middle positions of the second connecting arm and the fourth connecting arm are hinged together to form a second X-shaped cross structure.

[0014] The end of the second connecting arm away from the first connecting arm is rotatably mounted on the fork carriage, and the end of the fourth connecting arm away from the third connecting arm is rotatably mounted on the fork carriage.

[0015] Furthermore, the fork carriage includes a second connector and two forks disposed on the side of the second connector;

[0016] One end of the scissor bracket is connected to the rotating frame, and the other end of the scissor bracket is connected to the second connector.

[0017] Furthermore, the second connector is equipped with a tilting cylinder, which is used to drive the forks to rotate.

[0018] The present invention provides a three-way fork head with double depth and scissor fork, which is equipped with a tilting cylinder. When the fork tip is large, it provides a fork tilting function to prevent goods from falling or hitting the shelf due to the fork tip tipping, thereby improving stacking safety.

[0019] Furthermore, the second connector is also equipped with two adjustable hydraulic cylinders.

[0020] Furthermore, racks are provided at both the upper and lower ends of the right side of the cab component;

[0021] The upper end of the left side of the gantry component is provided with a lateral shift drive device, which includes a lateral shift motor and a drive shaft. The lateral shift motor is provided with a mounting bracket, which is mounted on the gantry component.

[0022] The lateral motor is used to drive the drive shaft to rotate;

[0023] Two drive gears are also fitted on the drive shaft, and the two drive gears mesh with two racks respectively.

[0024] Furthermore, the output end of the lateral displacement motor is provided with a driving gear, and a driven gear is sleeved on the transmission shaft, with the driving gear and the driven gear cooperating.

[0025] Furthermore, the left side surface of the gantry component is provided with a first roller frame at both the upper and lower ends, and each of the two first roller frames is provided with an eccentric roller. The lower end of the left side surface of the gantry component is also provided with a second roller frame, and the second roller frame is provided with a main roller.

[0026] The two eccentric rollers are respectively disposed on the left side of the two racks, and the eccentric rollers can roll along the left side of the racks;

[0027] The main roller is located on the top of the rack at the lower right end of the cab component, and the main roller can roll along the top surface of the rack.

[0028] Furthermore, a chain lifting assembly is also provided on the right side of the gantry component;

[0029] The chain lifting assembly includes a lifting cylinder, pulley components, and a chain, with the mounting base of the lifting cylinder located on the gantry component;

[0030] The pulley component includes a pulley mounting component and a pulley mounted on the pulley mounting component. One end of the chain is connected to the lower end of the gantry component, and the other end of the chain is provided with a first connector. The bridge component is mounted on the first connector.

[0031] A weighing sensor is also provided at the connection between the chain and the first connector;

[0032] The output end of the lifting cylinder is connected to the pulley mounting component, and the chain is wound around the pulley.

[0033] According to the present invention, a three-way fork with scissor fork and double deep position is provided, which is equipped with a weighing sensor. When the vehicle is unloading, the weighing sensor can calculate the weight of the goods through pressure changes. The preset program controls whether the vehicle is to perform deep stacking and the height of deep stacking according to the weight of the goods, which greatly improves the safety of vehicle stacking operations.

[0034] Secondly, this utility model provides a three-way forklift, including a three-way fork with scissor forks and double deep position provided in the embodiment of the first aspect of this utility model.

[0035] Compared with the prior art, the beneficial effects of this utility model are:

[0036] 1. In this utility model, by providing a telescopic component and a second driving component, the telescopic component includes two scissor arms arranged opposite each other, and the second driving component is used to drive the scissor arms to extend or retract. Therefore, it is suitable for use in densely packed warehouse storage areas. Specifically, by driving the scissor arms to extend or retract smoothly and reliably through the second driving component, the forks installed at the end of the telescopic component can be horizontally extended to the storage position of the adjacent shelf. This allows the forklift to directly perform goods storage and retrieval operations on the adjacent shelf in front of or to the side of the current shelf without moving its own position.

[0037] 2. This utility model provides a three-way forklift with a double-deep scissor fork. Compared to traditional forklifts that require frequent movement, positioning, and posture adjustments between different racks for storage and retrieval, this three-way forklift with a double-deep scissor fork completely eliminates the time and operational steps required for equipment transfer and repositioning between adjacent racks. Operators can quickly and continuously store and retrieve multiple adjacent locations from a fixed position using simple hydraulic cylinder control, significantly shortening the single storage and retrieval cycle time. The efficiency improvement is particularly noticeable in high-density storage areas or when frequent aisle crossing operations are required. In addition, since the equipment can cover multiple racks without frequently entering or leaving aisles or moving to adjacent aisles, the frequency and time the equipment occupies in aisles can be reduced, improving aisle passage efficiency. This function reduces the requirements for equipment maneuvering space to a certain extent, which can help design or apply narrower aisles while meeting operational needs, thereby maximizing warehouse storage density and space utilization.

[0038] 3. The double-deep three-way fork head with scissor forks provided by this utility model enables the equipment to directly operate on adjacent shelves in a fixed position, thereby bringing about a leap in operating efficiency, effective reduction in operating costs and energy consumption, optimization of warehouse space utilization, and significant enhancement of operational safety and ease of operation, providing strong technical support for high-density warehousing and efficient logistics operations. Attached Figure Description

[0039] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention, but do not constitute an undue limitation thereof. In the drawings:

[0040] Figure 1 A schematic diagram of a forklift moving in a warehouse is provided in the background art for this utility model;

[0041] Figure 2 A schematic diagram of a forklift stacking in a warehouse, provided as part of the background technology of this utility model;

[0042] Figure 3 A schematic diagram of a three-way fork with double-deep position and scissor fork provided by this utility model;

[0043] Figure 4 A schematic diagram of the structure of a rotating scissor fork component with a double-deep three-way fork head provided by this utility model;

[0044] Figure 5 A schematic diagram of the installation structure of a tilting hydraulic cylinder with a double-deep three-way fork head and scissor fork provided by this utility model;

[0045] Figure 6 A schematic diagram of the installation structure of an adjustable hydraulic cylinder with a scissor fork, double deep position, and three-way fork head, provided for this utility model;

[0046] Figure 7 A front view of a structure with a double-deep three-way fork head and scissor fork provided by this utility model;

[0047] Figure 8 Provided by this utility model Figure 7 Enlarged view of the structure at point A in the image;

[0048] Figure 9 A schematic diagram of the installation structure of the first driving component and the rotating frame of a scissor holder with a double-deep three-way fork head provided by this utility model;

[0049] Figure 10 A schematic diagram of the extended state of a scissor holder with a double-deep three-way fork provided by this utility model;

[0050] Figure 11 This is a schematic diagram of the structure of a forklift with a double-deep three-way fork with scissor forks, provided by this utility model, for stacking in a warehouse.

[0051] Explanation of reference numerals in the attached drawings: 1. Cab component; 2. Mast component; 3. Cable tray component; 4. Rotary scissor fork component; 5. Side shift drive device; 6. Chain lifting assembly; 100. First connecting arm; 200. Second connecting arm; 300. Third connecting arm; 400. Fourth connecting arm; 500. Second connecting piece; 600. Fork; 101. Rack; 201. Eccentric roller; 202. Main roller; 203. Drive shaft; 204. Side shift motor; 205. Drive gear; 206. Chain; 207. Mounting bracket; 208. First roller bracket; 209. Second roller bracket ; 210. Drive gear; 211. Driven gear; 212. Weighing sensor; 301. First drive component; 304. Bridge frame body; 401. Rotating frame; 402. Telescopic assembly; 405. Fork carriage; 406. Second drive component; 407. Tilting cylinder; 408. Adjusting cylinder; 501. Intermediate frame; 502. Side stop; 601. Lifting cylinder; 602. Pulley component; 603. Pulley mounting component; 604. Pulley; 701. Stacking aisle one; 702. Stacking rack two; 703. Forklift; 704. Stacking aisle two; 705. Stacking rack one. Detailed Implementation

[0052] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0053] Three-way stacker forklifts are a highly specialized and efficient type of warehouse forklift designed specifically for extremely narrow aisles to maximize warehouse space utilization. Through their unique 180° mast rotation, they enable direct lateral stacking and picking within extremely narrow aisles, making them a key piece of equipment in intensive warehousing and logistics.

[0054] Chinese invention patent CN113173526A discloses a fork assembly and a three-way stacker truck, including a cab that is vertically and flexibly connected to the main mast via rollers; a mast assembly that is movably and tightly connected to the upper and lower ends of the cab to form a simply supported structure. The upper and lower ends of the cab provide lateral and vertical support for the mast assembly. A bridge assembly is movably engaged with the mast assembly at one end. By placing the mast at the rear in a simply supported installation, the support points are located above and below the cab components, resulting in a large support distance. After the forks are loaded, the mast experiences minimal deflection and deformation, and the forks have a small tilt after loading, ensuring high safety when stacking goods. Simultaneously, by connecting the fork assembly to a scissor fork structure with rotation and telescopic functions, the forks can be driven to extend and retract independently beyond the lateral movement mechanism, greatly increasing the fork lateral movement distance and preventing the entire vehicle body from getting too close to goods or shelves, thus increasing the safety distance. However, this fork assembly has the following problems in actual use:

[0055] 1. For example Figures 1 to 2As shown, the warehouse has multiple rows of shelves, with stacking aisles between adjacent rows. Initially, the forklift is located in stacking aisle 1 701, with stacking shelves 705 on both sides of stacking aisle 1 701. The adjacent stacking aisle 2 704 has stacking shelves 702 on both sides. When the forklift is in stacking aisle 1 701 and needs to stack goods onto stacking shelves 702, the forklift 703 needs to exit stacking aisle 1 701 and enter stacking aisle 2 704 to operate, which is inefficient. With the increasing cost of land use and the growing number of warehouses with high storage capacity, the existing three-way stacking forklift technology cannot solve the stacking problem of the goods (right half) in the figure.

[0056] 2. When using rotating scissor forks, the forks flex and deform significantly when fully extended and under load, causing severe fork buckling. This poses a risk of goods falling or hitting the shelves when stacking goods, resulting in low safety.

[0057] 3. The existing plug assembly does not have a weighing system. Due to the serious problem of forklift tipping, if the load is heavy, the lateral stability of the vehicle is poor when the forklift is lifted to a high position.

[0058] 4. The existing fork assembly uses gear transmission for rotation. The transmission gear pairs occupy a large space, making picking operations inconvenient. Furthermore, due to errors in gear manufacturing, the clearance of multi-stage gear transmission is relatively large. When the vehicle is operating at a high position, the clearance of the gear pairs causes a large amount of swaying of the fork, reducing the safety factor of stacking operations.

[0059] 5. Existing technology does not have a side shifter on the fork carriage, which cannot meet the usage requirements when encountering goods of different sizes or when fine-tuning the forks is required during stacking operations;

[0060] In summary, the forklift fork assembly in the existing technology suffers from low stacking efficiency and poor safety.

[0061] like Figures 3 to 8 As shown, the present invention provides a three-way fork with scissor fork and double depth position, including a cab component 1, a mast component 2 disposed on the cab component 1, a bridge component 3 disposed on the mast component 2, and a rotating scissor fork component 4 disposed on the bridge component 3.

[0062] The cable tray component 3 includes a cable tray body 304 and a first drive member 301 disposed on the cable tray body 304. The first drive member 301 is used to drive the rotating scissor fork component 4 to rotate. The first drive member 301 is any one of a spiral swing cylinder, a motor or a motor, and the first drive member 301 is preferably a spiral swing cylinder.

[0063] The rotating scissor fork component 4 includes a rotating frame 401, a telescopic assembly 402 disposed on the rotating frame 401, and a fork carriage 405. The fork carriage 405 is disposed on the telescopic assembly 402 on the side away from the rotating frame 401. The rotating frame 401 is also provided with a second driving member 406. The second driving member 406 can be a telescopic cylinder, an electric push rod, or a lead screw transmission assembly. The second driving member 406 is preferably a telescopic cylinder.

[0064] The telescopic assembly 402 includes two opposing scissor arms 403, and a second drive member 406 is used to drive the scissor arms 403 to extend or retract.

[0065] This three-way fork head with scissor fork double depth position has a mast component 2 set on the side of the cab component 1, and the mast component 2 is movably set on the cab component 1, that is, the mast component 2 can move back and forth along the side of the cab component 1. A chain lifting assembly 6 is set on the right side of the mast component 2. The chain lifting assembly 6 is used to drive the bridge component 3 to lift and lower. At the same time, a rotating scissor fork component 4 is set on the bridge component 3. The second driving member 406 on the rotating scissor fork component 4 can drive the scissor carriage 403 to extend or retract, thereby driving the fork carriage 405 to extend or retract.

[0066] When this double-deep three-way fork with scissor forks is applied to a forklift, the scissor carriage 403 is driven to extend or retract smoothly and reliably via the second drive unit 406. This allows the fork carriage 405, which is installed at the end of the telescopic assembly, to be horizontally extended to the storage position of the adjacent rack. This enables the forklift to directly perform goods storage and retrieval operations on the adjacent rack to the side of the rack it is currently on without moving its own position.

[0067] This dual-deep, three-way forklift with scissor forks significantly improves warehouse operation efficiency. Specifically, traditional forklifts require frequent movement, positioning, and posture adjustments between different racks for storage and retrieval. This dual-deep, three-way forklift completely eliminates the time and operational steps required for forklifts to move and reposition between adjacent racks. Furthermore, operators can quickly and continuously access multiple adjacent storage locations from a fixed position using simple hydraulic cylinder control, significantly shortening the single storage / retrieval cycle time. This efficiency improvement is particularly pronounced in high-density storage areas or when frequent aisle crossings are required.

[0068] This three-way fork with scissor forks and double depth allows forklifts to cover multiple racks without frequently entering or leaving aisles or moving to adjacent aisles, reducing the frequency and time forklifts to move within aisles and improving aisle efficiency. This feature also reduces the space requirements for forklift maneuverability to some extent, potentially allowing for the design or application of narrower aisles while meeting operational needs, thereby maximizing warehouse storage density and space utilization. Furthermore, applying this three-way fork with scissor forks and double depth to forklifts can significantly reduce forklift travel distance (especially for short-distance, high-frequency maneuvers), directly reducing tire wear, transmission system losses, and energy consumption (electricity or fuel). Reduced travel also means reduced mechanical stress and potential collision risks caused by starting, braking, and steering, helping to extend the overall lifespan of the forklift and reduce maintenance costs.

[0069] Furthermore, in actual operation, operators do not need to repeatedly drive the forklift for precise repositioning. They only need to control the extension and retraction of the forks to complete cross-rack operations, which simplifies the operation process and reduces the complexity of operation. It significantly reduces the risk of collisions with racks, goods or other forklifts during the movement, turning and positioning of forklifts in narrow aisles, thus improving overall operational safety. It also reduces bumpy driving and frequent start-stop operations, improving the comfort of the operator's working environment.

[0070] Because the scissor carriage 403 has good rigidity and stability, and with the precise control of the hydraulic cylinder, it can ensure that the fork carriage 405 maintains a stable and accurate positioning when it is extended, which is conducive to accurate picking and placing of goods. In addition, it can also avoid the cumulative error that may be caused by multiple vehicle repositioning and positioning, thus improving the accuracy of the final alignment of the fork carriage 405.

[0071] In addition, a first driving member 301 is provided, which is used to drive the rotating scissor fork component 4 to rotate; specifically, the rotating frame 401 is located at the output end of the first driving member 301.

[0072] When hydraulic oil enters the first drive component 301 through the oil inlet, the first drive component 301 rotates left and right (rotation angle can be 0-180°), driving the rotating scissor fork component 4 to rotate left and right (rotation angle can be 0-180°), thereby achieving three-way movement of the forks;

[0073] The first driving component 301 is used to make the rotating scissor fork component 4 rotate horizontally to form a ring-shaped working area. The rotation angle can be freely adjusted, so that the double-deep three-way fork head with scissor fork can be applied to the forklift. It can access adjacent shelves at different angles (such as front, left, right or even diagonal positions) without adjusting the vehicle direction, completely breaking the traditional one-way operation limitation.

[0074] The second drive unit 406 and the first drive unit 301 form a "telescopic + rotation" combined action, which can cover the storage locations on both sides of multiple aisles, reduce the overall aisle planning density of the warehouse, and free up more storage space; that is, through "second drive unit (forward and backward movement) + first drive unit (horizontal rotation)," the forks can quickly reach the target storage location along complex paths (such as first rotating to align with adjacent aisles, and then extending the forks), with smooth and efficient action;

[0075] By applying this double-deep three-way fork with scissor forks to forklifts, it can cover fan-shaped or even circular storage areas through single-point positioning, achieving "goods arrive before your eyes without moving the vehicle." This eliminates redundant actions such as moving, turning, and repetitive positioning, resulting in a highly streamlined workflow. It can easily handle demanding scenarios such as high-density warehouses, irregularly shaped shelves, and cold chain warehouses, and reduce long-term operating costs from multiple dimensions, including energy consumption, maintenance, and space utilization.

[0076] like Figures 3 to 8 As shown, in some embodiments of this utility model, the scissor holder 403 includes a first connecting arm 100, a second connecting arm 200, a third connecting arm 300, and a fourth connecting arm 400. One end of the first connecting arm 100 is rotatably connected to the rotating frame 401, and the other end of the first connecting arm 100 is hinged to the second connecting arm 200. One end of the third connecting arm 300 is rotatably connected to the rotating frame 401, and the other end of the third connecting arm 300 is hinged to the fourth connecting arm 400.

[0077] The middle positions of the first connecting arm 100 and the third connecting arm 300 are hinged together to form a first X-shaped cross structure, and the middle positions of the second connecting arm 200 and the fourth connecting arm 400 are hinged together to form a second X-shaped cross structure.

[0078] The end of the second connecting arm 200 away from the first connecting arm 100 is rotatably mounted on the fork carriage 405, and the end of the fourth connecting arm 400 away from the third connecting arm 300 is rotatably mounted on the fork carriage 405.

[0079] Specifically, one end of the first connecting arm 100 is rotatably connected to the rotating frame 401 via a first pin, and the other end of the first connecting arm 100 is hinged to one end of the second connecting arm 200 via a second pin. One end of the third connecting arm 300 is rotatably connected to the rotating frame 401 via a third pin, and the other end of the third connecting arm 300 is hinged to one end of the fourth connecting arm 400 via a fourth pin. The connection point between the first connecting arm 100 and the rotating frame 401 is designated as position point 1, and the connection point between the third connecting arm 300 and the rotating frame 401 is designated as position point 2. There is a certain distance between position points 1 and 2.

[0080] Furthermore, the middle portion of the first connecting arm 100 is hinged to the middle portion of the third connecting arm 300 via a fifth pin, forming a first X-shaped cross structure. The middle portion of the second connecting arm 200 is hinged to the middle portion of the fourth connecting arm 400 via a sixth pin, forming a second X-shaped cross structure. The end of the second connecting arm 200 away from the first connecting arm 100 is rotatably mounted on the fork carriage 405 via a seventh pin, and the end of the fourth connecting arm 400 away from the third connecting arm 300 is rotatably mounted on the fork carriage 405 via an eighth pin. The connection point between the second connecting arm 200 and the fork carriage 405 is designated as position point 3, and the connection point between the fourth connecting arm 400 and the fork carriage 405 is designated as position point 4. There is a certain distance between position points 3 and 4.

[0081] The scissor lift 403 consists of two independent X-shaped cross structures (the first X-shaped structure and the second X-shaped structure), which significantly enhances the rigidity of the entire scissor lift system. Each X-shaped structure can resist lateral forces and torsional loads. The two X-shaped structures are interconnected through multiple connecting arms, hinge points between the connecting arms, and common fork carriage 405 connection points, forming a spatially stable frame structure. This not only reduces swaying and deformation during deployment but also improves the stability during lifting.

[0082] In addition, the double X-shaped structure design not only ensures smooth movement of the mechanism during extension and retraction, making the lifting trajectory of the fork carriage 405 more stable and controllable, reducing the possibility of jamming or shaking, but also achieves a greater extension height while maintaining a low retracted height through a reasonable arm length ratio, meeting the needs of different working conditions.

[0083] like Figures 3 to 8 As shown, in some embodiments of this utility model, a synchronous connecting plate is provided between the two scissor frames 403. The synchronous connecting plate can be fixedly installed between the two second connecting arms 200 on the two scissor frames 403, so that the movement trajectories of the two scissor frames 403 are kept consistent.

[0084] like Figures 3 to 8 As shown, in some embodiments of this utility model, there can be two second driving members 406. In actual installation, there can be two second driving members 406. The two second driving members 406 are used to drive the two scissor arms 403 to extend or retract. Specifically, the output end of the second driving member 406 can be installed on the third connecting arm 300 or the first connecting arm 100. By pushing the third connecting arm 300 to extend or retract, the entire X-shaped structure can be driven to unfold or retract.

[0085] like Figures 3 to 8As shown, in some embodiments of this utility model, the second driving member 406 can be set as one. In actual installation, the second driving member 406 can be set as one, that is, the second driving member 406 is set between the rotating frame 401 and the fork carriage 405. The mounting seat of the second driving member 406 is set on the rotating frame 401, and the output end of the second driving member 406 is set on the fork carriage 405. By driving the two scissor arms 403 to extend or retract, this method requires the second driving member 406 to have a long stroke.

[0086] like Figures 3 to 8 As shown, in some embodiments of this utility model, the fork carriage 405 includes a second connector 500 and two forks 600 disposed on the side of the second connector 500.

[0087] One end of the scissor bracket 403 is connected to the rotating bracket 401, and the other end of the scissor bracket 403 is connected to the second connector 500;

[0088] The second connector 500 is equipped with a tilting cylinder 407, which is used to drive the forks 600 to rotate.

[0089] When the forks bend and deform due to loading, resulting in a large amount of fork collapse, hydraulic oil enters the tilt cylinder 407, which can push the fork carriage to adjust the angle, thus avoiding the risk of goods falling due to the large amount of fork collapse.

[0090] like Figures 3 to 8 As shown, in some embodiments of this utility model, the second connecting member 500 is also provided with two adjusting cylinders 408.

[0091] The second connecting member 500 includes an intermediate frame 501 and side stops 502 located at both ends of the intermediate frame 501. Two adjusting cylinders 408 are arranged opposite to each other. The mounting bases of the two adjusting cylinders 408 are fixedly installed on the intermediate frame 501. The output ends of the two adjusting cylinders 408 are respectively connected to the two side stops 502.

[0092] The distance adjustment cylinder 408 can be used to adjust the distance between the two side stops 502, that is, to adjust the outer distance of the fork carriage 405 so that the forklift can better adapt to different working conditions.

[0093] like Figures 3 to 8 As shown, in some embodiments of this utility model, racks 101 are provided at both the upper and lower ends of the right side of the cab component 1.

[0094] A lateral shift drive device 5 is provided at the upper end of the left side of the gantry component 2. The lateral shift drive device 5 includes a lateral shift motor 204 and a transmission shaft 203. A mounting bracket 207 is provided outside the lateral shift motor 204 and is mounted on the gantry component 2.

[0095] The lateral displacement motor 204 is used to drive the drive shaft 203 to rotate;

[0096] Two drive gears 205 are also fitted on the drive shaft 203, and the two drive gears 205 mesh with the two racks 101 respectively;

[0097] In this structural design, racks 101 are fixed at both the upper and lower ends of the right side of the cab component 1, and two drive gears 205 are respectively set on the transmission shaft 203 to mesh with them. This design can drive the two meshing points simultaneously and equally, ensuring that the force transmission is symmetrical and balanced when the gantry component 2 moves laterally relative to the cab component 1. This effectively prevents the uneven load, jamming or component deformation that may be caused by single-point drive, and significantly improves the smoothness and reliability of the lateral movement.

[0098] The design of the upper and lower double racks disperses the driving force and support reaction force required for lateral movement to two locations (upper and lower ends) of the cab component 1. This force dispersion method reduces stress concentration at individual racks and corresponding mounting points, improving the load-bearing capacity and service life of the entire drive system (including racks, gears and their mounting structures), and is especially suitable for operating conditions that require bearing large loads or frequent lateral movements;

[0099] The two drive gears 205 are driven by the same drive shaft 203, which strictly ensures the absolute synchronization of their speed and steering. This rigid synchronization, combined with the parallel arrangement of the upper and lower racks, forces the mast component 2 to make a strict translational movement relative to the cab component 1, avoiding tilting or offset that may be caused by asynchrony, and ensuring the accuracy of lateral positioning;

[0100] Furthermore, the lateral drive unit 5 (including the lateral motor 204, drive shaft 203, and mounting bracket 207) is centrally located at the upper end of the left side of the gantry component 2, and drives two drive gears 205 located at different heights via a through drive shaft 203. This design layout is compact, and dual-point drive can be achieved using a single power source (lateral motor 204) and drive shaft, simplifying the mechanism and reducing complexity and potential failure points;

[0101] The lateral displacement motor 204 is fixed to the gantry component 2 via an external mounting bracket 207. This independent mounting bracket design provides a stable and rigid support platform for the motor, ensuring that the vibration of the motor during operation is not directly transmitted to the main structure of the gantry. It also facilitates the installation, maintenance or replacement of the motor, enhancing the maintainability of the system.

[0102] like Figures 3 to 8 As shown, in some embodiments of this utility model, the output end of the side-shifting motor 204 is provided with a drive gear 210, and a driven gear 211 is sleeved on the transmission shaft 203, with the drive gear 210 and the driven gear 211 cooperating.

[0103] That is, the side-shifting motor 204 drives the driving gear 210 to rotate, which in turn drives the driven gear 211 that meshes with it to rotate. Since the driven gear 211 is mounted on the transmission shaft 203, the rotation of the driven gear 211 will drive the transmission shaft 203 to rotate, thereby achieving the purpose of "the side-shifting motor 204 is used to drive the transmission shaft 203 to rotate".

[0104] like Figures 3 to 8 As shown, in some embodiments of this utility model, the upper and lower ends of the left side surface of the gantry component 2 are provided with first roller frames 208, and the two first roller frames 208 are provided with eccentric rollers 201. The lower end of the left side surface of the gantry component 2 is also provided with a second roller frame 209, and the second roller frame 209 is provided with a main roller 202.

[0105] Two eccentric rollers 201 are respectively located on the left side of the two racks 101, and the eccentric rollers 201 can roll along the left side of the racks 101;

[0106] The main roller 202 is located on the top of the rack 101 at the lower right side of the cab component 1, and the main roller 202 can roll along the top surface of the rack 101.

[0107] The design of eccentric roller 201, combined with drive gear 205, restricts the displacement of the gantry component 2 in the left and right directions; the setting of main roller 202 suppresses the vertical jump of the gantry component 2 caused by load; combined with the above settings, the tendency of swaying or twisting during the lateral movement of the gantry component 2 is completely eliminated.

[0108] like Figures 3 to 8 As shown, in some embodiments of this utility model, a chain lifting assembly 6 is provided on the right side of the gantry component 2. The chain lifting assembly 6 includes a lifting cylinder 601, a pulley component 602 and a chain 206. The mounting seat of the lifting cylinder 601 is provided on the gantry component 2.

[0109] The pulley component 602 includes a pulley mounting component 603 and a pulley 604 disposed on the pulley mounting component 603. One end of the chain 206 is connected to the lower end of the gantry component 2, and the other end of the chain 206 is provided with a first connector 605. The bridge component 3 is disposed on the first connector 605.

[0110] A weighing sensor 212 is also provided at the connection between the chain 206 and the first connector 605;

[0111] The output end of the lifting cylinder 601 is connected to the pulley mounting part 603, and the chain 206 is wound around the pulley 604;

[0112] The lifting cylinder 601 pushes the pulley mounting part 603 to make the chain 206 form a moving pulley effect, so that the large lifting stroke can be met with a shorter cylinder, significantly reducing the space occupied by the mechanism in the thickness direction of the gantry; in addition, one end of the chain 206 is fixed to the lower end of the gantry component 2, and the other end is suspended from the bridge component 3 through the first connector 605, ensuring that the chain tension is always symmetrical during the lifting process and avoiding the bridge tilting.

[0113] It is equipped with a load cell 212 to directly measure the load tension and capture the real effective load in real time.

[0114] This setup, combined with the lateral shift drive device 5 on the left side of the gantry component 2, forms a "single-point suspension + double-sided guidance" anti-torsion structure, which completely solves the problem of off-center loading and jamming, enabling the gantry component 2 to have three-dimensional motion (lifting / lateral shifting / weighing) coordinated capabilities.

[0115] like Figures 1 to 9 As shown, in some embodiments of this utility model, the first driving member 301 can be fixed to the bridge frame body 304 by screws, and the rotating frame 401 can be fixed to the first driving member 301 by screws.

[0116] A rotating shaft is provided on the rotating frame 401. The rotating shaft is connected to the bridge frame 304 by the Haver structure 302. This structure can ensure the stability of the structure during the rotation of the rotating frame 401.

[0117] Among them, the Haval structure 302 can effectively support the rotating shaft and reduce vibration, ensuring the stable operation of the rotating shaft.

[0118] like Figures 10 to 11 As shown, the present invention also provides a three-way forklift, which includes a three-way fork with scissor forks and double deep position provided in the embodiment of the first aspect of the present invention;

[0119] When this three-way fork with double-deep scissor forks is applied to a three-way forklift, its total lateral displacement distance after the lateral movement (simultaneous extension of both scissor arms) is greater than that of existing technologies during actual use. Furthermore, this forklift is fully applicable to complex working conditions with different stacking aisles and varying cargo dimensions. Drivers can select the appropriate lateral displacement distance based on the dimensions of different aisles and the size and weight of different goods to ensure the forklift matches the corresponding stacking aisle and cargo, resulting in better aisle adaptability.

[0120] Specifically, such as Figure 9 and Figure 10 As shown, the double-deep three-way fork with scissor fork has its scissor carrier 403 fully extended, and the mast component 2 has moved to the front end of the left side of the cab component 1;

[0121] The three-way forklift travels within the warehouse aisles. Initially, the forklift is located in stacking aisle 701, and the double-deep three-way forks with scissor forks on the forklift are positioned as follows: Figure 3 The state shown indicates that the scissor lift 403 is fully retracted, and the mast component 2 is located at the rear left side of the cab component 1. The shelves on both sides of the stacking aisle 1 701 are stacking shelves 705. The stacking aisle 2 704, adjacent to stacking aisle 1 701, has shelves 702 on both sides. When the forklift is in stacking aisle 1 701 and needs to stack goods onto stacking shelves 702, only the double-deep three-way forks with scissor lifts need to be operated to position them as shown. Figure 9 In the state shown, the scissor fork with double deep position three-way fork has its scissor bracket 403 fully extended, and the mast component 2 has moved to the front left side of the cab component 1, so that goods on the stacking rack 2 702 adjacent to the stacking rack 1 705 can be stacked.

[0122] This invention provides a three-way forklift with a double-deep scissor fork. Compared to traditional forklifts that require frequent movement, positioning, and posture adjustments between different racks for storage and retrieval, this double-deep scissor fork completely eliminates the time and operational steps required for equipment transfer and repositioning between adjacent racks. Operators can quickly and continuously access multiple adjacent storage locations from a fixed position using simple hydraulic cylinder control, significantly shortening the single storage and retrieval cycle time. The efficiency improvement is particularly noticeable in high-density storage areas or when frequent aisle crossing operations are required. Furthermore, since the equipment can cover multiple racks without frequently entering or leaving aisles or moving to adjacent aisles, it reduces the frequency and time the equipment spends in aisles, improving aisle traffic efficiency. This function also reduces the requirements for equipment maneuverability to some extent, allowing for the design or application of narrower aisles while meeting operational needs, thereby maximizing warehouse storage density and space utilization.

[0123] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

[0124] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0125] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0126] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A three-way fork with double-deep scissor fork, characterized in that, It includes a cab component (1), a mast component (2) mounted on the cab component (1), a bridge component (3), and a rotating scissor fork component (4) mounted on the bridge component (3). The mast component (2) is movably mounted on the cab component (1). The mast component (2) is also provided with a chain lifting assembly (6), which is used to drive the bridge component (3) to lift. The cable tray component (3) includes a cable tray body (304) and a first drive member (301) disposed on the cable tray body (304). The first drive member (301) is used to drive the rotating scissor fork component (4) to rotate. The rotating scissor fork component (4) includes a rotating frame (401), a telescopic assembly (402) disposed on the rotating frame (401), and a fork carriage (405). The fork carriage (405) is disposed on the telescopic assembly (402) on the side away from the rotating frame (401). The rotating frame (401) is also provided with a second driving member (406). The telescopic assembly (402) includes two opposing scissor arms (403), and the second drive member (406) is used to drive the scissor arms (403) to extend or retract.

2. A three-way fork with scissor fork and double depth position according to claim 1, characterized in that, The scissor arm (403) includes a first connecting arm (100), a second connecting arm (200), a third connecting arm (300), and a fourth connecting arm (400). One end of the first connecting arm (100) is rotatably connected to the rotating frame (401), and the other end of the first connecting arm (100) is hinged to the second connecting arm (200). One end of the third connecting arm (300) is rotatably connected to the rotating frame (401), and the other end of the third connecting arm (300) is hinged to the fourth connecting arm (400). The middle positions of the first connecting arm (100) and the third connecting arm (300) are hinged together to form a first X-shaped cross structure, and the middle positions of the second connecting arm (200) and the fourth connecting arm (400) are hinged together to form a second X-shaped cross structure. The end of the second connecting arm (200) away from the first connecting arm (100) is rotatably mounted on the fork carriage (405), and the end of the fourth connecting arm (400) away from the third connecting arm (300) is rotatably mounted on the fork carriage (405).

3. A three-way fork with scissor fork and double depth position according to claim 1, characterized in that, The fork carriage (405) includes a second connector (500) and two forks (600) disposed on the side of the second connector (500); One end of the scissor bracket (403) is connected to the rotating frame (401), and the other end of the scissor bracket (403) is connected to the second connector (500).

4. A three-way fork with scissor fork and double depth position according to claim 3, characterized in that, The second connector (500) is provided with a tilting cylinder (407), which is used to drive the forks (600) to rotate.

5. A three-way fork with scissor fork and double deep position according to claim 3, characterized in that, The second connector (500) is also equipped with two adjustable hydraulic cylinders (408).

6. A three-way fork with scissor fork and double deep position according to claim 1, characterized in that, The upper and lower ends of the right side of the cab component (1) are provided with racks (101); The upper end of the left side of the gantry component (2) is provided with a lateral movement drive device (5). The lateral movement drive device (5) includes a lateral movement motor (204) and a transmission shaft (203). The lateral movement motor (204) is provided with a mounting bracket (207) on the outside. The mounting bracket (207) is located on the gantry component (2). The side-shifting motor (204) is used to drive the transmission shaft (203) to rotate; Two drive gears (205) are also fitted on the drive shaft (203), and the two drive gears (205) mesh with the two racks (101) respectively.

7. A three-way fork with scissor fork and double deep position according to claim 6, characterized in that, The output end of the side-shifting motor (204) is provided with a drive gear (210), and a driven gear (211) is sleeved on the transmission shaft (203). The drive gear (210) and the driven gear (211) cooperate with each other.

8. A three-way fork with double-deep scissor fork according to claim 6, characterized in that, The gantry component (2) is provided with a first roller frame (208) at both the upper and lower ends of the left side surface, and an eccentric roller (201) is provided on each of the two first roller frames (208). The lower end of the left side surface of the gantry component (2) is also provided with a second roller frame (209), and a main roller (202) is provided on the second roller frame (209). The two eccentric rollers (201) are respectively disposed on the left side of the two racks (101), and the eccentric rollers (201) can roll along the left side of the racks (101); The main roller (202) is located on the top of the rack (101) at the lower right end of the cab component (1), and the main roller (202) can roll along the top surface of the rack (101).

9. A three-way fork with scissor fork and double deep position according to claim 1, characterized in that, The chain lifting assembly (6) includes a lifting cylinder (601), a pulley (602) and a chain (206), and the mounting base of the lifting cylinder (601) is provided on the gantry component (2); The pulley component (602) includes a pulley mounting component (603) and a pulley (604) disposed on the pulley mounting component (603). One end of the chain (206) is connected to the lower end of the gantry component (2), and the other end of the chain (206) is provided with a first connector (605). The bridge component (3) is disposed on the first connector (605). A weighing sensor (212) is also provided at the connection between the chain (206) and the first connector (605); The output end of the lifting cylinder (601) is connected to the pulley mounting component (603), and the chain (206) is wound around the pulley (604).

10. A three-way forklift, characterized in that, Includes the double-deep three-way fork with scissor fork as described in any one of claims 1-9.

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