Forward-moving type pallet fork

Abstract

A forward-moving type pallet fork comprises a cantilever frame, a swing cylinder is arranged in the cantilever frame and fixedly connected with a rotating frame, a pallet fork frame is installed on one side of the rotating frame, and the other side of the pallet fork frame is connected with the forward-moving type pallet fork. The forward-moving type pallet fork comprises a first pallet fork assembly and a second pallet fork assembly arranged on the first pallet fork assembly in a sliding and sleeving mode. A first driving mechanism is arranged in the first pallet fork assembly and used for driving the second pallet fork assembly to do telescopic motion relative to the first pallet fork assembly. According to the forward-moving type pallet fork, under the driving of the first driving mechanism, the second pallet fork assembly stretches and retracts relative to the first pallet fork assembly, the forward-moving type pallet fork can adapt to different cargo channels, and the phenomenon that a forklift is adjusted many times is effectively avoided; when the telescopic stroke of the second pallet fork assembly is large enough, the device can be suitable for a double-row goods shelf, and the storage capacity is increased under the condition of the same area.

Description

Technical Field

[0001] This utility model belongs to the field of logistics equipment technology, and in particular relates to a forward-moving forklift. Background Technology

[0002] Currently, telescopic forks are generally used on reach trucks, which can be used in different cargo aisles, effectively avoiding the need for multiple adjustments during warehouse handling. However, reach trucks with telescopic forks require wider aisles. With the rapid rise in land costs, the industry has been looking for a multi-functional logistics equipment that can save warehouse space and improve logistics efficiency. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned problems by providing a reach truck fork assembly, including a first fork assembly and a second fork assembly slidably sleeved on the first fork assembly. The first fork assembly is provided with a first drive mechanism. Under the drive of the first drive mechanism, the second fork assembly retracts relative to the first fork assembly, which can adapt to different cargo channels and effectively avoid the phenomenon of repeatedly adjusting the forklift. When the retraction stroke of the second fork assembly is large enough, it can be applied to double-row racks, increasing the warehouse capacity within the same area.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A reach truck fork includes: a cantilever frame, a swing cylinder is provided inside the cantilever frame, the swing cylinder is fixedly connected to a rotating frame, a fork carriage is installed on one side of the rotating frame, and a reach truck fork is connected to the other side of the fork carriage;

[0006] The forward-reaching fork includes a first fork assembly and a second fork assembly slidably sleeved on the first fork assembly; the first fork assembly is provided with a first drive mechanism for driving the second fork assembly to extend and retract relative to the first fork assembly.

[0007] The first drive mechanism is a hydraulic cylinder, and the second fork assembly is provided with a slide rail on its inner side;

[0008] Driven by the first drive mechanism, the second fork assembly extends and retracts horizontally relative to the first fork assembly via the slide rail.

[0009] The cantilever frame is equipped with a switching valve, which is connected to an inlet and return oil pipeline, which includes an inlet oil pipeline and an outlet oil pipeline.

[0010] The cantilever frame is also equipped with a first valve group, and the inlet and return oil lines control the swing cylinder and the first fork assembly through the first valve group.

[0011] The oil inlet line supplies oil to the first valve group, and the first valve group supplies oil to the swing cylinder and the first fork assembly respectively.

[0012] The swing cylinder is located directly above the rotating frame and is fixedly connected to the rotating frame, used to drive the rotating frame to achieve a 180° rotation.

[0013] The rotating frame and the fork carriage are fixedly connected by bolts.

[0014] The fork carriage is symmetrically provided with sliding grooves at both the upper and lower ends, and the sliding grooves are symmetrically provided with groove structures of different sizes on the left and right sides.

[0015] The fork carriage has multiple through holes symmetrically arranged in the middle, and two identical first fork assemblies are symmetrically arranged on both sides of the through holes.

[0016] The first fork assembly is a hook-type fork, which is fixedly connected to the groove structure by a fixing mechanism and can be detachably installed on the fork carriage.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a reach truck fork assembly, including a first fork assembly and a second fork assembly slidably sleeved on the first fork assembly. The first fork assembly is provided with a first drive mechanism. Driven by the first drive mechanism, the second fork assembly retracts relative to the first fork assembly, which can adapt to different cargo channels and effectively avoid the phenomenon of repeatedly adjusting the forklift. When the retraction stroke of the second fork assembly is large enough, it can be applied to double-row racks, increasing the warehouse capacity in the same area.

[0019] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a forward-moving fork structure provided by this utility model Figure 1 .

[0022] Figure 2 A schematic diagram of the forward-moving fork structure provided by this utility model.

[0023] Figure 3 This is a schematic diagram of the forklift assembly structure provided by this utility model.

[0024] Figure 4 A schematic diagram of a forward-moving fork structure provided by this utility model Figure 2 . Detailed Implementation

[0025] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the scope of this utility model.

[0026] This utility model provides a reach truck fork assembly, including a first fork assembly and a second fork assembly slidably sleeved on the first fork assembly. The first fork assembly is provided with a first drive mechanism. Driven by the first drive mechanism, the second fork assembly retracts relative to the first fork assembly, which can adapt to different cargo channels and effectively avoid the phenomenon of repeatedly adjusting the forklift. When the retraction stroke of the second fork assembly is large enough, it can be applied to double-row racks, increasing the warehouse capacity in the same area.

[0027] Example:

[0028] like Figure 1 As shown, a reach forklift includes:

[0029] Cantilever 1, with a swing cylinder 2 inside the cantilever 1, the swing cylinder 2 being fixedly connected to the rotating frame 3, a fork carriage 4 being installed on one side of the rotating frame 3, and a forward-moving fork 5 being connected to the other side of the fork carriage 4;

[0030] The cantilever 1 is the basic component of the entire reach truck forklift, providing support in applications such as forklifts. The swing cylinder 2, located inside the cantilever 1, acts as an actuator to generate rotational motion, primarily driving connected components and adjusting their angle to allow for flexible changes in the fork's direction or position during operation. Figure 4 As shown, the rotating frame 3 is fixedly connected to the swing cylinder 2, and the rotating frame 3 can rotate by the action of the swing cylinder; as Figure 4 As shown, the swing cylinder 2 is located directly above the rotating frame 3 and is fixedly connected to the rotating frame 3. It is used to drive the rotating frame 3 to achieve a 180° rotation. Through the action of the rotating frame 3, the fork carriage 4 can be adjusted to different angles to adapt to different loading and unloading needs.

[0031] like Figure 2As shown, the reach fork 5 includes a first fork assembly 51 and a second fork assembly 52 slidably sleeved on the first fork assembly; the first fork assembly 51 is provided with a first drive mechanism, which is used to drive the second fork assembly 52 to extend and retract relative to the first fork assembly 51.

[0032] The first fork assembly 51 is the basic part of the reach fork 5 and is usually fixed on the fork carriage 4. It also has a drive mechanism inside to control the extension and retraction of the second fork assembly 52. ​​The second fork assembly 52 is slidably sleeved on the first fork assembly 51 and can move (extend and retract) linearly along the first fork assembly. This design increases the overall extension length of the forks, enabling them to reach farther positions to pick up and place goods.

[0033] The first drive mechanism, located inside the first fork assembly 51, is key to realizing the telescopic movement of the second fork assembly 52. ​​The drive mechanism can take various forms; through its operation, the second fork assembly can extend and retract smoothly and precisely to adapt to different operational needs.

[0034] In a preferred embodiment of this utility model, the first driving mechanism is a hydraulic cylinder, and a slide rail is provided on the inner side of the second fork assembly 52. ​​Under the drive of the first driving mechanism, the second fork assembly 52 performs horizontal extension and retraction relative to the first fork assembly 51 through the slide rail, ensuring the straightness and stability of the extension and retraction process and preventing deviation or jamming.

[0035] In this embodiment, a switching valve is installed inside the cantilever 1. The switching valve is connected to the inlet and return oil lines 6, which include an inlet oil line 61 and an outlet oil line 62. The switching valve (also called a directional valve) is a key component in the hydraulic system used to control the direction of fluid flow. The switching valve is installed inside the cantilever 1, which facilitates centralized layout and reduces interference from external pipelines, thereby improving the overall structural compactness. The switching valve is connected to the inlet and return oil lines 6, which consist of two parts: the inlet oil line 61, which supplies oil from the hydraulic pump or power source to the actuator; and the outlet oil line 62, which returns the hydraulic oil to the oil tank or other return ports, providing power support for the entire hydraulic system and serving as the core energy channel for driving the swing cylinder and telescopic cylinder.

[0036] In this embodiment, the cantilever 1 is also equipped with a first valve group. The oil inlet pipe 61 supplies oil to the first valve group, and the first valve group supplies oil to the swing cylinder 2 and the first fork assembly 51 respectively.

[0037] like Figure 3As shown, the swivel frame 3 and the fork carriage 4 are fixedly connected by bolts. This bolted connection provides sufficient strength and rigidity to ensure a tight connection between the swivel frame 3 and the fork carriage 4, guaranteeing stability and safety during operation. The bolted connection also facilitates the installation and maintenance of the swivel frame 3 and the fork carriage 4, allowing for quick disassembly for repair or component replacement when necessary. Furthermore, if fine adjustments to the angle or position of the fork carriage are required, the bolts can be adjusted to provide a certain range of adjustment, enhancing the reliability of the entire reach truck system. This stable mechanical connection is particularly important when handling goods of varying weights and sizes.

[0038] like Figure 3 As shown, the fork carriage 4 has symmetrically arranged grooves 41 at both the upper and lower ends, mainly for guiding and supporting functions. Different sized groove structures 411 are symmetrically arranged on the left and right sides of the grooves 41. These different groove sizes may be to accommodate different specifications or types of first fork assemblies 51, providing greater flexibility and adaptability. Multiple through holes 42 are symmetrically arranged in the middle of the fork carriage 4. Two identical first fork assemblies 51 are symmetrically arranged on both sides of the through holes 42. This symmetrical arrangement helps to distribute the load and increase the stability and load-bearing capacity of the entire fork system.

[0039] like Figure 2 As shown, the first fork assembly 51 is a hook-type fork. The hook-type fork (first fork assembly 51) can more easily replace different types of fork heads to adapt to different cargo handling needs, such as replacing them with special forks suitable for cargo with special shapes or sizes.

[0040] The first fork assembly 51 is fixedly connected to the groove structure 411 via a fixing mechanism 511 and is detachably mounted on the fork carriage 4. The fixing mechanism 511 securely fixes the first fork assembly 51 to the fork carriage 4, ensuring that it will not loosen or fall off accidentally during operation, and also facilitating quick loading and unloading by the operator. The groove structure 411, as a cooperating part of the fixing mechanism 511, provides positioning and support, ensuring that the hook-type forks can be accurately installed and withstand various forces generated during operation; users can quickly replace different types of fork heads according to specific application scenarios without complicated tools or lengthy operation procedures; when a component is damaged or requires maintenance, it can be removed and repaired or replaced separately without affecting the operation of other parts.

[0041] In a preferred embodiment of this utility model, the fixing mechanism is a locking pin.

[0042] like Figure 1As shown, the fork carriage 4 is mounted on one side of the swivel frame 3, serving as the frame structure for supporting the reach forks 5, which are the actual goods handling component. The portion of the reach forks 5 that directly contacts the goods is designed to be telescopic, increasing its flexibility and applicability. The telescopic design allows the forks to extend to a greater distance for picking up and placing goods without moving the entire device. Overall, this dual-component reach fork design significantly improves the operational flexibility and efficiency of the handling equipment. It allows the equipment to operate in confined spaces or extend to greater distances for loading and unloading goods when needed. Specifically, under the drive of the first drive mechanism, the second fork assembly telescopically extends relative to the first fork assembly, allowing the same forklift to adapt to different cargo aisles and effectively avoiding multiple adjustments to the forklift. Furthermore, when the extension stroke of the second fork assembly is sufficiently large, it can be applied to double-row racks, increasing warehouse capacity within the same area.

[0043] This utility model provides a reach truck fork assembly, including a first fork assembly and a second fork assembly slidably sleeved on the first fork assembly. The first fork assembly is provided with a first drive mechanism. Driven by the first drive mechanism, the second fork assembly retracts relative to the first fork assembly, which can adapt to different cargo channels and effectively avoid the phenomenon of repeatedly adjusting the forklift. When the retraction stroke of the second fork assembly is large enough, it can be applied to double-row racks, increasing the warehouse capacity in the same area.

[0044] 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, and 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.

[0045] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A forward-reaching forklift, characterized in that, include: A cantilever frame (1) is provided with a swing cylinder (2) inside the cantilever frame (1). The swing cylinder (2) is fixedly connected to a rotating frame (3). A fork carriage (4) is installed on one side of the rotating frame (3), and a forward-moving fork (5) is connected to the other side of the fork carriage (4). The forward-moving fork (5) includes a first fork assembly (51) and a second fork assembly (52) slidably sleeved on the first fork assembly; the first fork assembly (51) is provided with a first driving mechanism, which drives the second fork assembly (52) to extend and retract relative to the first fork assembly (51).

2. The forward-reaching forklift according to claim 1, characterized in that, The first driving mechanism is a hydraulic cylinder, and the second fork assembly (52) is provided with a slide rail on its inner side; Driven by the first drive mechanism, the second fork assembly (52) extends and retracts horizontally relative to the first fork assembly (51) via the slide rail.

3. A forward-reaching fork according to claim 1, characterized in that, The cantilever (1) is equipped with a switching valve, which is connected to an inlet and return oil pipeline (6). The inlet and return oil pipeline includes an inlet oil pipeline (61) and an outlet oil pipeline (62).

4. A forward-reaching fork according to claim 3, characterized in that, The cantilever (1) is also equipped with a first valve group, and the inlet and return oil lines (6) control the swing cylinder (2) and the first fork assembly (51) through the first valve group.

5. A forward-reaching fork according to claim 4, characterized in that, The oil inlet line (61) supplies oil to the first valve group, and the first valve group supplies oil to the swing cylinder (2) and the first fork assembly (51) respectively.

6. A forward-moving fork according to claim 5, characterized in that, The swing cylinder (2) is located directly above the rotating frame (3) and is fixedly connected to the rotating frame (3) to drive the rotating frame (3) to achieve a 180° rotation.

7. A forward-moving fork according to claim 1, characterized in that, The rotating frame (3) and the fork carriage (4) are fixedly connected by bolts.

8. A forward-reaching fork according to claim 7, characterized in that, The fork carriage (4) is symmetrically provided with sliding grooves (41) at both the upper and lower ends, and the sliding grooves (41) are symmetrically provided with groove structures (411) of different sizes on the left and right sides.

9. A forward-reaching fork according to claim 8, characterized in that, The fork carriage (4) has a plurality of through holes (42) symmetrically arranged in the middle, and two identical first fork assemblies (51) are symmetrically arranged on both sides of the through holes (42).

10. A forward-moving fork according to claim 9, characterized in that, The first fork assembly (51) is a hook-type fork, which is fixedly connected to the groove structure (411) through a fixing mechanism (511) and can be detachably installed on the fork carriage (4).

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