Bidirectional working type forklift

Abstract

The utility model provides a bi-directional working type forklift which comprises a cab, a frame and a swing mechanism, the cab is rotatably connected to the frame through the swing mechanism, and the front side and the rear side of the frame are both provided with portal frame assemblies fixedly connected with the frame. The side, away from the frame, of the portal assembly is slidably connected with a fork arm carrier, and a fork is connected to the fork arm carrier. A pallet fork connecting shaft is arranged at the end, away from the door frame assembly, of the pallet fork frame, and the pallet fork is rotationally connected with the pallet fork frame through the pallet fork connecting shaft so that the pallet fork can be overturned upwards to be folded. According to the two-way working type forklift, the working efficiency is improved, and goods carrying is more efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering machinery, and in particular relates to a bidirectional working forklift. Background Art

[0002] Forklifts are very important tools in the logistics industry. They can play a very important role in warehouse stacking, airport transportation, port loading and unloading, factory cargo transfer and other fields, and can efficiently complete short-distance transportation tasks of goods in different scenarios. At present, traditional forklifts can only complete one-way travel and are difficult to operate in some specific scenarios where they cannot turn. At the same time, there are only forks on one side, and the amount of goods moved is small. When carrying heavy objects, it is easy to cause the forklift to tilt forward, causing safety accidents. Utility Model Content

[0003] In order to solve the problems in the above-mentioned prior art, the utility model provides a bidirectional working forklift, including a cab, a frame and a slewing mechanism, the cab is rotatably connected to the frame through the slewing mechanism, the front and rear sides of the frame are provided with a door frame assembly fixedly connected thereto, the door frame assembly is slidably connected to a fork frame on one side away from the frame, and a fork is connected to the fork frame.

[0004] Furthermore, a fork connecting shaft is provided at one end of the fork frame away from the portal frame assembly, and the fork is rotatably connected to the fork frame via the fork connecting shaft, so that the fork can be flipped upward and retracted.

[0005] Furthermore, the gantry assembly includes a gantry connecting plate and two gantries, the outer sides of the two gantry are provided with polygonal grooves along the vertical direction, and the fork frame is provided with a polygonal protrusion that cooperates with the polygonal groove to achieve a slidable connection between the fork frame and the gantry assembly.

[0006] Furthermore, a chain connected to the fork frame is provided inside the portal frame for pulling the fork frame to move up and down.

[0007] Furthermore, the slewing mechanism includes a slewing bearing, an inner ring of the slewing bearing is fixedly connected to the frame, and an outer ring of the slewing bearing is fixedly connected to the cab.

[0008] Furthermore, the slewing mechanism also includes a drive motor, and an output shaft of the drive motor is transmission-connected to the cab.

[0009] Furthermore, the fork frame is provided with a locking mechanism for locking the forks that are flipped upward and retracted.

[0010] Furthermore, the polygonal groove is a T-shaped or U-shaped groove, wherein the inner wall of the U-shaped groove is provided with a square groove.

[0011] Compared with the prior art, the bidirectional working forklift of the utility model mainly has the following advantages:

[0012] 1. The forklift of the utility model has two forks symmetrically installed on the front and rear sides of the frame, and the goods can be inserted in the front and rear, which greatly improves the working efficiency of the forklift and makes the cargo handling more efficient. In addition, the two-way fork can provide a counterweight function, which avoids the forklift from tilting forward when carrying heavy objects, eliminating safety hazards.

[0013] 2. The cab of the utility model can be rotated, which increases the driver's field of vision, provides a better visual environment for driving, and improves the convenience of forklift operation in some specific scenarios where turning is impossible. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a bidirectional working forklift of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the door frame assembly of the utility model;

[0016] Figure 3 It is a structural schematic diagram of a cargo fork and a cargo fork frame of the utility model;

[0017] Figure 4 It is a structural schematic diagram of a cargo fork and a cargo fork frame of the utility model;

[0018] Figure 5 It is a schematic diagram of a frame of the utility model.

[0019] In the figure: 1, mast assembly; 2, fork frame; 21, fork connecting shaft; 22, fork frame connecting plate; 221, polygonal protrusion; 3, fork; 31, mast connecting plate; 32, mast; 321, polygonal groove; 4, cab; 41, wheel mounting frame; 42, wheel; 5, slewing mechanism; 6, frame. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1 As shown, the utility model provides a two-way working forklift, including a cab 4, a frame 6 and a slewing mechanism 5, wherein the cab 4 is rotatably connected to the frame 6 through the slewing mechanism 5. The front and rear sides of the frame 6 are provided with a door frame assembly 1 fixedly connected thereto, and a side of the door frame assembly 1 away from the frame 6 is slidably connected to a fork frame 2, and a fork 3 is connected to the fork frame 2.

[0024] Specifically, the cab 4 is located in the middle position of the upper side of the frame 6, and the cab 4 is rotatably connected to the frame 6 through the slewing mechanism 5. Preferably, the slewing mechanism 5 includes a slewing bearing and a drive motor, and the bottom of the cab 4 is fixedly connected to the outer ring of the slewing bearing by bolts; the top of the frame 6 is fixedly connected to the inner ring of the slewing bearing by bolts. The outer ring of the slewing bearing is provided with an external gear, and the drive motor is embedded in the frame 6. A driving gear is provided on the output shaft of the drive motor, and the driving gear is meshed and transmission-connected with the external gear of the outer ring of the slewing bearing. When the drive motor rotates, the cab 4 is driven to rotate through the gear transmission. This structure increases the driver's field of vision, provides a better visual environment for driving, and improves the convenience of forklift operation in some specific scenarios where steering is impossible.

[0025] In some embodiments, two door frame assemblies 1 are symmetrically arranged and fixed to the front and rear sides of the vehicle frame 6 respectively. Figure 2As shown, the mast assembly 1 includes a mast connection plate 31 and two parallel masts 32. The mast connection plate 31 is fixed to the vehicle frame 6 by bolts, and the two parallel masts 32 are fixedly connected to the mast connection plate 31 by bolts or welding. The mast assembly 1 on the front and rear sides of the vehicle frame 6 greatly improves the working efficiency of the forklift and makes cargo handling more efficient. In addition, the bidirectional fork can provide a counterweight function, which avoids the forklift from tilting forward when carrying heavy objects, eliminating safety hazards.

[0026] In addition, the outer sides of the two masts 32 are provided with polygonal grooves 321 along the vertical direction, the fork frame 2 includes a fork frame connecting plate 22, and the fork frame connecting plate 22 is provided with two polygonal protrusions 221 that match the polygonal grooves 321 on one side close to the mast assembly 1, and the fork frame 2 is inserted into the mast assembly 1 through the polygonal protrusions 221. Preferably, the polygonal groove 321 is a T-shaped or U-shaped groove, wherein the inner wall of the U-shaped groove has a square groove. This realizes the axial slidable connection between the fork frame 2 and the mast assembly 1, and at the same time, it can also realize the circumferential fixation of the two and limit the rotation of the fork frame 2 and the mast assembly 1 in the front and rear directions.

[0027] In addition, the interior of the gantry 32 is a hollow structure, and a pulley is provided on the top of the hollow structure. A chain for pulling the fork frame 2 up and down is provided inside the gantry 32. One end of the chain passes through the pulley and is connected to the top of the fork frame 2, and the other end passes through the fork frame connecting plate 22 and is connected to the power device.

[0028] In some embodiments, Figure 3 , Figure 4 As shown, a fork frame connecting plate 22 is provided with a fork connecting shaft 21 which runs horizontally through the end of the fork frame connecting plate 22 away from the mast assembly 1, and the end of the fork 3 is rotatably connected to the fork frame 2 through the fork connecting shaft 21, so that the fork 3 can be turned up and retracted. Preferably, a locking mechanism is provided on the fork frame 2, and when the fork 3 is turned up and retracted, the locking mechanism is connected between the fork frame 2 and the fork 3 to prevent the fork 3 from turning down and falling. In this embodiment, the specific structural form of the locking mechanism can be selected according to actual needs.

[0029] like Figure 5 As shown, the bidirectional forklift also includes a wheel 42 and a wheel mounting frame 41. The wheel 42 is connected to the wheel mounting frame 41 through a horizontal pin shaft to achieve forward and backward movement of the vehicle. The wheel mounting frame 41 is connected to the frame 6 through a vertical pin shaft to achieve a certain range of rotation of the wheel mounting frame 41 to achieve functions such as turning of the vehicle.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A two-way working forklift, characterized in that: The vehicle comprises a cab (4), a frame (6) and a slewing mechanism (5); the cab (4) is rotatably connected to the frame (6) via the slewing mechanism (5); both front and rear sides of the frame (6) are provided with a door frame assembly (1) fixedly connected thereto; a side of the door frame assembly (1) away from the frame (6) is slidably connected to a fork frame (2); and a fork (3) is connected to the fork frame (2).

2. The bidirectional forklift according to claim 1, characterized in that: A fork connecting shaft (21) is provided at one end of the fork frame (2) away from the portal frame assembly (1), and the fork (3) is rotatably connected to the fork frame (2) via the fork connecting shaft (21), so that the fork (3) can be turned upward and retracted.

3. The bidirectional forklift according to claim 1, characterized in that: The mast assembly (1) comprises a mast connecting plate (31) and two masts (32), the two masts (32) are provided with polygonal grooves (321) along the vertical direction on the outer sides of the two masts (32), and the fork frame (2) is provided with a polygonal protrusion (221) that cooperates with the polygonal groove (321) to achieve a slidable connection between the fork frame (2) and the mast assembly (1).

4. The bidirectional forklift according to claim 3, characterized in that: A chain connected to the fork frame (2) is provided inside the door frame (32) and is used to pull the fork frame (2) to move up and down.

5. The bidirectional forklift according to claim 1, characterized in that: The slewing mechanism (5) comprises a slewing bearing, the inner ring of the slewing bearing is fixedly connected to the vehicle frame (6), and the outer ring of the slewing bearing is fixedly connected to the cab (4).

6. The bidirectional forklift according to claim 5, characterized in that: The slewing mechanism (5) further comprises a driving motor, the output shaft of which is drivingly connected to the cab (4).

7. The bidirectional forklift according to claim 2, characterized in that: The fork frame (2) is also provided with a locking mechanism for locking the fork (3) that is flipped upward and retracted.

8. The bidirectional forklift according to claim 3, characterized in that: The polygonal groove (321) is a T-shaped or U-shaped groove, wherein the inner wall of the U-shaped groove is provided with a square groove.

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