Narrow aisle double-sided forklift truck frame

Abstract

The application discloses a narrow-lane double-side forklift frame, and relates to the technical field of forklifts.The frame comprises a support plate for connecting a forklift mast, a left side beam assembly, a right side beam assembly and a bottom cross beam assembly, and the support plate is arranged perpendicularly to the bottom cross beam assembly; the left side beam assembly and the right side beam assembly are installed on both sides of the bottom cross beam assembly and connected with the support plate to form a frame main body chassis; and the frame main body chassis is fixedly connected with a left wall plate assembly and a right wall plate assembly on both sides.The frame left side beam assembly, the frame right side beam assembly and the frame bottom cross beam assembly are used to determine the frame width in the design, so that the width size is ensured to be within the safe range of the rack channel.The narrow frame body design can be used to drive between some narrow-lane racks, so that the number of warehouse racks is increased, the space utilization is improved, left and right double-side goods taking can be realized, the forklift does not need to turn around in the lane, the carrying efficiency is improved, the labor cost is saved and the frame is stable and reliable.

Description

Technical Field

[0001] This invention relates to the field of forklift technology, specifically a forklift chassis for narrow aisle dual-side loading and unloading. Background Technology

[0002] In the warehousing and logistics sector, users often increase the number of shelves to maximize the use of limited warehouse space, which results in narrow aisles between shelves.

[0003] Ordinary forklifts can only enter aisles in a predetermined direction to pick up goods in one direction, and cannot turn around in narrow spaces to pick up goods on the other side. To simultaneously pick up and put down goods on both sides of a narrow aisle, two forklifts need to travel towards each other at the same time, which greatly increases the purchase cost of forklifts. Alternatively, a sufficiently wide aisle can be provided, allowing forklifts to turn around and pick up goods on both sides after entering the aisle. However, providing a sufficiently wide aisle will reduce the number of shelves in the warehouse, lowering the warehouse utilization rate. At the same time, the efficiency of forklifts turning around to pick up and put down goods is low, and the operation is cumbersome. Summary of the Invention

[0004] The purpose of this invention is to provide a forklift chassis for narrow aisle dual-side loading and unloading to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a narrow aisle dual-side loading and unloading forklift frame, comprising a support plate for connecting the forklift mast, a left beam assembly, a right beam assembly, and a bottom crossbeam assembly, wherein the support plate is arranged perpendicular to the bottom crossbeam assembly, wherein the left beam assembly and the right beam assembly are installed on both sides of the bottom crossbeam assembly and connected with the support plate to form the main chassis of the frame, and the left wall panel assembly and the right wall panel assembly are fixedly connected to both sides of the main chassis of the frame.

[0006] Preferably, the left beam assembly includes a left tube and a left main beam connected to the left tube. A wheel cover is formed on the left tube to protect the load-bearing wheel. The load-bearing wheel axle is rotatably connected to the left main beam, and the load-bearing wheel axle is located at the center of the wheel cover. Both ends of the left tube and left main beam assembly are equipped with sealing plates. A cover plate edge strip is also installed on the left main beam.

[0007] Preferably, the right beam assembly and the left beam assembly are structurally identical components and are symmetrically arranged on both sides of the bottom crossbeam assembly.

[0008] Preferably, the bottom crossbeam assembly includes a load-bearing base plate that is connected to the left beam assembly and the right beam assembly respectively. Both ends of the load-bearing base plate are connected to channel steel beams, and a reinforcing rib is installed on one side of the load-bearing base plate.

[0009] Preferably, the load-bearing base plate is fixedly connected to the counterweight guard plate on the side opposite to the installation of the reinforcing rib.

[0010] Preferably: the left wall panel assembly includes a base left wall panel, a left assembly left side panel is installed on one side of the base left wall panel, and a charging interface is provided on the left assembly left side panel; a left assembly right side panel is installed on the other side of the base left wall panel; a first universal wheel fixing plate is installed at the bottom of the side wall of the base left wall panel; a battery support plate is installed in the middle of the side wall of the base left wall panel; a pump station mounting base is fixedly connected to the side wall of the base left wall panel near the first universal wheel fixing plate; a first hood buckle plate is also formed on the left assembly left side panel and the left assembly right side panel on both sides of the base left wall panel; a first hood fixing plate is installed on the top of the base left wall panel; first corner rib plates are installed at the connection positions of the base left wall panel with the left assembly left side panel and the left assembly right side panel; a power supply plug fixing plate is also connected to the top of the side wall of the base left wall panel; an emergency stop pad is connected to the upper part of the left assembly left side panel.

[0011] Preferably, a first anti-collision contact edge tail plate is fixedly connected between the left side panel and the right side panel of the left assembly, and the first anti-collision contact edge tail plate has first side guards at both ends and is fixed to the left side panel and the right side panel of the left assembly respectively through the first side guards.

[0012] Preferably: the right wall panel assembly includes a base right wall panel, with a left side panel and a right side panel of the right assembly respectively fixedly connected to both sides of the base right wall panel; counterweight plates for balancing the weight are symmetrically installed on both sides of the side wall of the base right wall panel; a drive vertical plate is also fixed between the counterweight plate and the base right wall panel; a left support for the display screen is installed on one side of the upper end of the base right wall panel, and a right support for the display screen is installed on the other side of the upper end of the base right wall panel; a drive guide wheel shaft is connected to the drive vertical plate; and the bottom of the base right wall panel side wall... The second universal wheel fixing plates are symmetrically installed on both sides. The top of the right wall panel of the base body is symmetrically formed with second hood buckle plates on both sides. The top of the right wall panel of the base body is equipped with the second hood fixing plate. The right wall panel of the base body is connected to the left side panel and the right side panel of the right assembly on both sides with second corner rib plates. The left side panel and the right side panel of the right assembly are fixedly connected with second anti-collision contact edge tail plates. The two ends of the second anti-collision contact edge tail plates form second side guards and are fixedly connected to the left side panel and the right side panel of the right assembly respectively through the second side guards.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This application innovates upon a conventional chassis design, essentially welding two conventional stacker legs together with forks extending from the side. This ensures lateral loading and unloading capabilities from both sides while also enabling the interchangeability of some parts. The left and right beam assemblies and the bottom crossbeam assembly have their widths determined during the design phase to ensure they remain within safe limits in the racking aisles. The welding positions of the support plates are also controlled to guarantee mast installation accuracy. This narrow chassis design allows for movement between racks in narrow aisles, increasing the number of warehouse racks and improving space utilization. It enables lateral loading from both sides without the need for U-turns in aisles, improving handling efficiency, saving labor costs, and ensuring stability and reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Another perspective illustration; Figure 3 This is a schematic diagram of the left beam assembly structure of the present invention; Figure 4 For the present invention Figure 3 Another perspective illustration; Figure 5 This is a schematic diagram of the support plate of the present invention; Figure 6 This is a schematic diagram of the bottom crossbeam assembly structure of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure viewed from below; Figure 8 This is a schematic diagram of the left wall panel assembly of the present invention; Figure 9 For the present invention Figure 8 Another perspective illustration; Figure 10 This is a schematic diagram of the right wall panel assembly of the present invention; Figure 11 For the present invention Figure 10 Another perspective illustration.

[0015] In the picture: 20. Support plate; 30. Left beam assembly; 301. Left pipe; 302. Left main beam; 303. End plate; 304. Load-bearing wheel axle; 305. Wheel cover; 306. Cover plate edge strip; 40. Right side beam assembly; 50. Bottom crossbeam assembly; 501. Load-bearing base plate; 502. Channel steel beam; 503. Counterweight block guard plate; 504. Reinforcing ribs; 60. Left wall panel assembly; 601. Base left wall panel; 602. Left side panel of left assembly; 603. Right side panel of left assembly; 604. First universal wheel fixing plate; 605. Battery tray; 606. Pump station mounting base; 607. First hood buckle plate; 608. First hood fixing plate; 609. First corner rib plate; 610. Power supply plug fixing plate; 611. Emergency stop pad; 612. First anti-collision contact edge tail plate; 613. First side guard plate; 70. Right wall panel assembly; 701. Base right wall panel; 703. Right assembly left side panel; 702. Right assembly right side panel; 704. Counterweight support plate; 705. Drive vertical plate; 706. Second anti-collision contact edge tail plate; 707. Display screen left bracket; 708. Display screen right bracket; 709. Drive guide wheel shaft; 710. Second universal wheel fixing plate; 711. Second hood buckle plate; 712. Second hood fixing plate; 713. Second corner rib plate; 714. Second side guard plate. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and 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.

[0018] Please see Figure 1-11 In this embodiment of the invention, a narrow aisle dual-side loading and unloading forklift frame includes a support plate 20 for connecting the forklift mast, a left beam assembly 30, a right beam assembly 40, and a bottom crossbeam assembly 50. The support plate 20 is arranged perpendicular to the bottom crossbeam assembly 50. The left beam assembly 30 and the right beam assembly 40 are installed on both sides of the bottom crossbeam assembly 50 and connected to the support plate 20 to form the main chassis of the frame. The left wall panel assembly 60 and the right wall panel assembly 70 are fixedly connected to both sides of the main chassis of the frame.

[0019] Specifically, this embodiment will be described in the following description. Figure 1The description is based on a perspective divided into top, bottom, left, and right, but does not imply that this application is limited to this. It mainly includes a support plate 20 for connecting the mast, a left beam assembly 30 and a right beam assembly 40 connecting the main body of the frame, a bottom crossbeam assembly 50 connecting the left and right beam assemblies 30 and 40, and a left and right wall panel assembly 60 and 70 for realizing the overall vehicle power layout. The left and right beam assemblies 30 and 40 are located on both sides of the bottom crossbeam assembly 50 and are preferably welded to the mast support plate 20 to form the main chassis of the frame. Finally, the left and right wall panel assemblies 60 and 70 are welded onto this main body to form a complete frame. This frame innovates on the basis of a conventional frame, essentially two conventional stacker legs welded together, with forks extending from the side, ensuring that goods can be loaded and unloaded from both sides, while also achieving the commonality of some parts. The left beam assembly 30, right beam assembly 40, and bottom crossbeam assembly 50 have their frame widths determined during the design phase to ensure they remain within the safe range of the racking aisles. Simultaneously, the welding position of the support plate 20 is controlled to guarantee mast installation accuracy. This frame, with its narrow body design, allows for movement between racking systems in narrow aisles, increasing the number of warehouse racking units and improving space utilization. It enables left and right-side picking without requiring U-turns in aisles, improving handling efficiency, saving labor costs, and ensuring stability and reliability.

[0020] like Figure 3 and Figure 4 As shown, the left beam assembly 30 includes a left tube 301 and a left main beam 302 connected to the left tube 301. A wheel cover 305 is formed on the left tube 301 to protect the load-bearing wheel. The load-bearing wheel axle 304 is rotatably connected to the left main beam 302, and the load-bearing wheel axle 304 is located at the center of the wheel cover 305. Both ends of the left tube 301 and left main beam 302 assembly are equipped with sealing plates 303. A cover plate edge strip 306 is also installed on the left main beam 302.

[0021] The right beam assembly 40 and the left beam assembly 30 are structurally identical components and are symmetrically arranged on both sides of the bottom crossbeam assembly 50.

[0022] Specifically, the left beam assembly 30, which connects to the main body of the frame, is welded together with the right beam assembly 40, the bottom crossbeam assembly 50, and the support plate 20 to form the main chassis of the frame, creating a frame structure that greatly improves the overall strength and serves as the carrier of the entire vehicle. This ensures the reliability of other mounting components on the frame.

[0023] like Figure 6 and Figure 7 As shown, the bottom crossbeam assembly 50 includes a load-bearing base plate 501 that is connected to the left beam assembly 30 and the right beam assembly 40 respectively. Both ends of the load-bearing base plate 501 are connected to channel steel beams 502, and a reinforcing rib 504 is also installed on one side of the load-bearing base plate 501.

[0024] Furthermore, the counterweight guard plate 503 is fixedly connected to the opposite side of the load-bearing base plate 501 and the mounting reinforcing rib 504.

[0025] Specifically, both ends of the load-bearing base plate 501 are connected to channel steel beams 502, which improves the overall structural strength of the bottom crossbeam assembly 50. In conjunction with the reinforcing ribs 504, the strength and reliability of the bottom crossbeam assembly 50 are improved. The counterweight guard plate 503 can improve the limit of the counterweight and ensure the stability of the counterweight when it is installed on the load-bearing base plate 501.

[0026] like Figure 8 and Figure 9 As shown, the left wall panel assembly 60 includes a base left wall panel 601, a left side panel 602 of the left assembly installed on one side of the base left wall panel 601, and a charging interface provided on the left side panel 602; a right side panel 603 of the left assembly installed on the other side of the base left wall panel 601; a first universal wheel fixing plate 604 installed at the bottom of the side wall of the base left wall panel 601; a battery support plate 605 installed in the middle of the side wall of the base left wall panel 601; and a pump station mounting plate fixedly connected to the side wall of the base left wall panel 601 near the first universal wheel fixing plate 604. Mounting base 606, the left side plate 602 and right side plate 603 of the left assembly on both sides of the left wall plate 601 of the base body are also formed with first hood buckle plates 607, the top of the left wall plate 601 of the base body is installed with a first hood fixing plate 608, the connection position of the left wall plate 601 of the base body with the left side plate 602 and the right side plate 603 of the left assembly is installed with first corner rib plates 609; the top of the side wall of the left wall plate 601 of the base body is also connected with a power supply plug fixing plate 610; the upper part of the left side plate 602 of the left assembly is connected with an emergency stop pad plate 611.

[0027] Furthermore, a first anti-collision contact edge plate 612 is fixedly connected between the left side plate 602 and the right side plate 603 of the left assembly. The first anti-collision contact edge plate 612 has first side guard plates 613 formed at both ends and is fixed to the left side plate 602 and the right side plate 603 of the left assembly respectively through the first side guard plates 613.

[0028] Specifically, it is mainly used as a power pump station to support the vehicle's driving power source battery and the vertical movement of goods. The left side panel 602 and power supply plug fixing plate 610 of the left assembly are used to fix the charging base to replenish the battery; the battery tray 605 is used to fix the battery to prevent it from shaking during heavy vehicle operation; the pump station mounting base 606 is used to fix the power pump station, which is the power source for moving goods; the first universal wheel fixing plate 604 is used to fix the auxiliary wheels to prevent the vehicle from tipping over due to uneven ground, and also has an auxiliary driving function; the first hood buckle plate 607 and the first hood fixing plate 608 are used to limit and fix the hood, and to wrap the internal components; the left side panel 602 and the emergency stop pad plate 611 of the left assembly are used to install the vehicle emergency stop button, which can be pressed directly to stop the vehicle in case of an accident, serving a safety function; the first anti-collision contact edge tail plate 612 and the first side guard plate 613 are used to install the contact edge strip, which can be triggered to stop the vehicle when it encounters an obstacle during operation, and automatically restores when the obstacle is removed, serving a safety function; the first corner rib plate 609 is mainly used to reinforce the connection between the left wall panel and the left and right side panels, and improve the strength of the left wall panel assembly 60.

[0029] like Figure 10 and Figure 11 As shown, the right wall panel assembly 70 includes a base right wall panel 701, with a left side panel 703 and a right side panel 702 of the right assembly fixedly connected to both sides of the base right wall panel 701. Counterweight support plates 704 for balancing the weight are symmetrically installed on both sides of the side wall of the base right wall panel 701. A drive vertical plate 705 is also fixed between the counterweight support plate 704 and the base right wall panel 701. A left display screen bracket 707 is installed on one side of the upper end of the side wall of the base right wall panel 701, and a right display screen bracket 708 is installed on the other side of the upper end of the side wall of the base right wall panel 701. A drive guide wheel shaft 709 is connected to the drive vertical plate 705. Symmetrical support plates 704 are installed on both sides of the bottom of the side wall of the base right wall panel 701. A second universal wheel fixing plate 710 is installed. Second hood buckle plates 711 are symmetrically formed on both sides of the top of the right wall panel 701 of the base. A second hood fixing plate 712 is installed on the top of the right wall panel 701 of the base. Second corner rib plates 713 are connected between the right wall panel 701 of the base and the left side panel 703 and the right side panel 702 of the right assembly. A second anti-collision contact edge tail plate 706 is fixedly connected between the left side panel 703 and the right side panel 702 of the right assembly. Second side guard plates 714 are formed at both ends of the second anti-collision contact edge tail plate 706 and are fixedly connected to the left side panel 703 and the right side panel 702 of the right assembly respectively through the second side guard plates 714.

[0030] Specifically, it mainly serves to support the drive assembly for vehicle movement and steering, various electrical components, and the display screen for vehicle operation information. The left and right support brackets 707 and 708 are used to fix and support the display screen and are embedded in the hood. The upper part of the right wall panel 701 of the base is fixed with an electronic control mounting plate to support the vehicle controller, which is used for the logic control of vehicle movement and steering. The counterweight support plate 704 is used to balance the left and right sides of the vehicle because the battery and power pump station components are arranged on the left wall panel assembly 60, which is relatively heavy, while the right wall panel assembly 70 only houses the display screen and drive assembly and is relatively light. The counterweight on the right side is insufficient to offset the weight on the left. The drive vertical plate 705 and drive guide wheel axle 709 are used to guide the drive during operation when it floats up and down elastically, preventing drive deviation and only allowing up and down floating. The second universal wheel fixing plate 710 is used to fix the auxiliary wheel to prevent the vehicle from overturning due to uneven ground, and also has the function of assisting driving; the second hood buckle plate 711 and the second hood fixing plate 712 are used to limit and fix the hood, and to wrap the internal components; the second anti-collision contact edge tail plate 706 and the second side guard plate 714 are used to install contact edge strips. When the vehicle encounters an obstacle during operation, it will directly trigger the stop. When the obstacle is removed, it will automatically recover, which plays a safety role.

[0031] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0032] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A forklift chassis for narrow aisles with dual-sided loading and unloading, characterized in that, The vehicle includes a support plate (20) for connecting the forklift mast, a left beam assembly (30), a right beam assembly (40), and a bottom crossbeam assembly (50). The support plate (20) is set perpendicular to the bottom crossbeam assembly (50). The left beam assembly (30) and the right beam assembly (40) are installed on both sides of the bottom crossbeam assembly (50) and connected to the support plate (20) to form the main chassis of the vehicle frame. The left wall panel assembly (60) and the right wall panel assembly (70) are fixedly connected to both sides of the main chassis of the vehicle frame.

2. The forklift chassis for narrow aisle dual-side loading and unloading as described in claim 1, characterized in that: The left beam assembly (30) includes a left tube (301) and a left main beam (302) connected to the left tube (301). A wheel cover (305) for protecting the load-bearing wheel is formed on the left tube (301). The load-bearing wheel axle (304) is rotatably connected to the left main beam (302), and the load-bearing wheel axle (304) is located at the center of the wheel cover (305). Both ends of the left tube (301) and left main beam (302) assembly are equipped with sealing plates (303). A cover plate edge strip (306) is also installed on the left main beam (302).

3. The forklift chassis for narrow aisle dual-side loading and unloading as described in claim 2, characterized in that: The right beam assembly (40) and the left beam assembly (30) are structurally identical components and are symmetrically arranged on both sides of the bottom crossbeam assembly (50).

4. The forklift chassis for narrow aisle dual-side loading and unloading as described in claim 1, characterized in that: The bottom crossbeam assembly (50) includes a load-bearing base plate (501) that is connected to the left beam assembly (30) and the right beam assembly (40) respectively. Both ends of the load-bearing base plate (501) are connected to channel steel beams (502), and a reinforcing rib (504) is installed on one side of the load-bearing base plate (501).

5. The forklift chassis for narrow aisle dual-side loading and unloading as described in claim 4, characterized in that: The load-bearing base plate (501) is fixedly connected to the counterweight guard plate (503) on the side opposite to the installation reinforcing rib (504).

6. The forklift chassis for narrow aisle dual-side loading and unloading as described in claim 1, characterized in that: The left wall panel assembly (60) includes a base left wall panel (601), a left side panel (602) of the left assembly is installed on one side of the base left wall panel (601), and a charging interface is provided on the left side panel (602); a right side panel (603) of the left assembly is installed on the other side of the base left wall panel (601); a first universal wheel fixing plate (604) is installed at the bottom of the side wall of the base left wall panel (601); a battery support plate (605) is installed in the middle of the side wall of the base left wall panel (601), and a pump station mounting base is fixedly connected to the side wall of the base left wall panel (601) near the first universal wheel fixing plate (604). 606), a first hood buckle plate (607) is formed on the left side plate (602) and right side plate (603) of the left assembly on both sides of the left wall plate (601) of the base body. A first hood fixing plate (608) is installed on the top of the left wall plate (601) of the base body. A first corner rib plate (609) is installed at the connection position between the left wall plate (601) of the base body and the left side plate (602) and the right side plate (603) of the left assembly. A power supply plug fixing plate (610) is also connected to the top of the side wall of the left wall plate (601) of the base body. An emergency stop pad plate (611) is connected to the upper part of the left side plate (602) of the left assembly.

7. The forklift chassis for narrow aisle dual-side loading and unloading as described in claim 6, characterized in that: The left side panel (602) and the right side panel (603) of the left assembly are fixedly connected to a first anti-collision contact edge plate (612). The first anti-collision contact edge plate (612) has a first side guard plate (613) formed at both ends and is fixed to the left side panel (602) and the right side panel (603) of the left assembly respectively through the first side guard plate (613).

8. The forklift chassis for narrow aisle dual-side loading and unloading as described in claim 1, characterized in that: The right wall panel assembly (70) includes a base right wall panel (701), with a right assembly left side panel (703) and a right assembly right side panel (702) fixedly connected to both sides of the base right wall panel (701); counterweight support plates (704) for balancing the weight are symmetrically installed on both sides of the side wall of the base right wall panel (701); a drive vertical plate (705) is also fixed between the counterweight support plate (704) and the base right wall panel (701); a display screen left bracket (707) is installed on one side of the upper end of the base right wall panel (701), and a display screen right bracket (708) is installed on the other side of the upper end of the base right wall panel (701); a drive guide wheel shaft (709) is connected to the drive vertical plate (705); and the bottom sides of the base right wall panel (701) are connected to the drive guide wheel shaft (709). The second universal wheel fixing plate (710) is installed. The second hood buckle plate (711) is symmetrically formed on both sides of the top of the right wall panel (701) of the base. The second hood fixing plate (712) is installed on the top of the right wall panel (701) of the base. The right wall panel (701) of the base is connected to the left side panel (703) and the right side panel (702) of the right assembly on both sides. The second anti-collision contact edge tail plate (706) is fixedly connected between the left side panel (703) and the right side panel (702) of the right assembly. The second anti-collision contact edge tail plate (706) forms a second side guard plate (714) at both ends and is fixedly connected to the left side panel (703) and the right side panel (702) of the right assembly through the second side guard plate (714).

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