CN219341637U - Double-door frame forklift - Google Patents

Abstract

The utility model discloses a double-gantry forklift, which comprises: a vehicle body; the upper door frame mechanism is arranged on one side of the vehicle body; the lower door frame mechanism is positioned below the upper door frame mechanism, a first avoiding groove is formed in the middle of the lower door frame mechanism, and the bottom of the upper door frame mechanism is arranged in the first avoiding groove in a penetrating mode; the upper fork is arranged on one side of the upper portal frame mechanism in a lifting manner; and two lower forks are arranged, the two lower forks are respectively arranged on two sides of the lower gantry mechanism in a lifting manner, and the upper fork is positioned above the lower fork. According to the utility model, two sets of the door frames and two sets of the forks are arranged on one side of the forklift to improve the efficiency of transporting goods by the forklift, and meanwhile, two lower forks are arranged and can be controlled respectively, so that the flexibility of picking and placing goods is improved.

Description

Double-door frame forklift

Technical Field

The utility model relates to the technical field of intelligent storage, in particular to a double-door frame forklift.

Background

In order to avoid confusion of operation logic, an existing AGV (Automated Guided Vehicle, abbreviated as AGV) and AMR (Autonomous mobilerobots, abbreviated as AMR) unmanned forklift can only set a set of fork on a portal of the forklift.

However, with the popularization of unmanned forklift technology, the forklift with a single fork set has extremely low working efficiency, and the requirements of the existing warehouse operation cannot be met. Meanwhile, most forklift masts are designed integrally, and a single driving mechanism is arranged on the masts to control lifting of the forks, so that the forklift with the single masts and the single forks is low in design efficiency and inflexible to operate, and cannot well adapt to modern intelligent warehouse management requirements.

Disclosure of Invention

The utility model mainly aims to provide a forklift capable of lifting multiple cargoes simultaneously and flexibly so as to improve the efficiency of transporting cargoes by the forklift.

To achieve the above object, the present utility model provides a dual-gantry forklift, including: a vehicle body; the upper door frame mechanism is arranged on one side of the vehicle body; the lower door frame mechanism is positioned below the upper door frame mechanism, a first avoiding groove is formed in the middle of the lower door frame mechanism, and the bottom of the upper door frame mechanism is arranged in the first avoiding groove in a penetrating mode; the upper fork is arranged on one side of the upper portal frame mechanism in a lifting manner; and two lower forks are arranged, the two lower forks are respectively arranged on two sides of the lower gantry mechanism in a lifting manner, and the upper fork is positioned above the lower fork.

Optionally, go up portal mechanism and be used for the drive including going up outer portal, going up the inner portal go up the last oil pressure jar that the inner portal goes up and down, go up outer portal set firmly in one side of automobile body, go up the inner portal and go up inside the outer portal, go up the fork connect in go up the inner portal and deviate from on one side of automobile body, just go up the inner portal drive go up the fork and go up the lift.

Further, the upper portal mechanism further comprises a traction chain, the traction chain is wound between the upper inner portal and the upper oil hydraulic cylinder, the upper inner portal drives the traction chain to move, and the upper fork is fixedly connected to the upper inner portal.

Optionally, the lower portal includes outer portal, lower interior portal and is used for the drive lower hydraulic cylinder that lower interior portal goes up and down, outer portal sets up down one side of automobile body, lower interior portal goes up and down to set up on the outer portal down, lower fork fixed connection is in down on the interior portal.

Further, two lower inner door frames are arranged, the two lower inner door frames are respectively located at two sides of the first avoiding groove, and the lower fork is correspondingly arranged on the two lower inner door frames.

Optionally, the upper fork comprises an upper fork frame and upper fork arms, two upper fork arms are arranged, and the two upper fork arms are respectively installed on the upper fork frame.

Further, the upper fork is located in front of the lower fork, the lower fork comprises a lower fork frame and lower fork arms, and the lower fork arms are mounted on the lower fork frame.

Still further, the upper fork frame is disposed at a side of the upper gantry mechanism facing away from the vehicle body, and the lower fork frame is disposed at a side of the lower gantry mechanism facing away from the vehicle body and is disposed below the upper fork frame, so that the upper fork frame can sink to the front of the lower fork frame.

Optionally, a second avoidance groove is formed at the bottom of the upper fork arm, the second avoidance groove is adapted to the lower fork arm, and the lower fork arm can be accommodated in the second avoidance groove.

Optionally, the lower fork further comprises a link mechanism, one end of the link mechanism is provided with a carrying wheel, the link mechanism is located at the bottom of the lower fork arm, and when the lower fork is lifted, the link mechanism is folded to drive the carrying wheel to pull down.

The beneficial effects are that: according to the utility model, the two sets of gantry mechanisms are arranged to realize the separate control of the upper fork and the lower fork, so that the cargo transporting efficiency is improved, the two lower forks can be respectively controlled to lift, the flexibility of taking and placing cargoes by the forks is improved, and the utility model can be suitable for more cargo taking and placing scenes.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a dual-gantry forklift of the present utility model;

FIG. 2 is a schematic view of the upper mast mechanism of the present utility model;

FIG. 3 is a schematic view of the lower mast mechanism of the present utility model;

FIG. 4 is a schematic view of the dual-gate fork truck of the present utility model in a raised condition;

fig. 5 is a bottom view of the dual-gate forklift of the present utility model.

Reference numerals illustrate:

a vehicle body 1; an upper portal mechanism 2; an upper outer door frame 21; an upper inner door frame 22; an upper hydraulic cylinder 23; a traction chain 24; a lower gantry mechanism 3; a lower outer door frame 31; a lower inner door frame 32; a lower hydraulic cylinder 33; a first escape groove 34; a fork 4; an upper fork frame 41; an upper yoke 42; a second escape groove 43; a lower fork 5; a lower fork frame 51; lower yoke 52; a link mechanism 53; and a carrier wheel 54.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

An embodiment of the present utility model proposes a dual-gantry forklift, see fig. 1-3, comprising: automobile body 1, portal mechanism and fork, portal mechanism includes portal mechanism 2 and lower portal mechanism 3, go up portal mechanism 2 with lower portal mechanism 3 all sets up one side of automobile body 1, just lower portal mechanism 3 is located go up the below of portal mechanism 2, the fork includes fork 4 and fork 5 down, go up and down fork 5 respectively liftable connect go up portal mechanism 2 with lower portal mechanism 3 is last.

Specifically, referring to fig. 1 and 3, the lower gantry mechanism 3 is of a concave structure, protruding portions on the left side and the right side of the lower gantry mechanism 3 are connected with the lower fork 5, a first avoiding groove 34 is formed in a concave portion in the middle of the lower gantry mechanism 3, the bottom of the upper gantry mechanism 2 is arranged in the first avoiding groove 34 in a penetrating manner and is fixed on one side of the vehicle body 1, and the upper gantry mechanism 2 is slightly protruding and is arranged in the first avoiding groove 34, so that lifting of the upper fork 4 is not affected by the lower gantry mechanism 3, and the upper fork 4 is enabled to sink to the upper side of the lower fork 5. The existing independent portal frame is improved into the split type upper portal frame mechanism 2 and the split type lower portal frame mechanism 3, and the two sets of portal frame mechanisms are used for respectively controlling the upper cargo fork 4 and the lower cargo fork 5, so that the cargo transporting efficiency is improved, the cargo picking and placing flexibility of the cargo fork is improved, and the utility model can be suitable for more cargo picking and placing scenes.

In this embodiment, referring to fig. 2, the upper mast mechanism 2 includes an upper outer mast 21, an upper inner mast 22, and an upper hydraulic cylinder 23 for driving the upper inner mast 22 to lift, where the upper outer mast 21 is fixedly disposed on one side of the vehicle body 1, the upper inner mast 22 is lifted and disposed inside the upper outer mast 21, the upper fork frame 41 is disposed on one side of the upper inner mast 22 away from the vehicle body 1, and the upper inner mast 22 drives the upper fork 4 to lift.

In this embodiment, the inner portion of the upper outer mast 21 is provided with a hollow guide rail (marked in the drawing), the upper inner mast 22 is arranged on the hollow guide rail in a liftable manner, meanwhile, an upper hydraulic cylinder 23 for driving the upper inner mast 22 is arranged at the bottom of the upper outer mast 21, and the driving end of the cylinder moves up and down along a lead rod (not shown) on the upper inner mast 22 to control the free lifting of the upper inner mast 22, and meanwhile, the upper fork 4 is connected to one side of the upper inner mast 22 away from the vehicle body 1, and the upper inner mast 22 pulls the upper fork 4 to perform lifting movement.

In this embodiment, referring to fig. 2, the upper mast mechanism 2 further includes a traction chain 24, the traction chain 24 is wound between the upper inner mast 22 and the upper hydraulic cylinder 23, the upper inner mast 22 drives the traction chain 24 to move, and the upper fork 4 is fixedly connected to the upper inner mast 22. Specifically, a sprocket (not shown) is mounted on the top of the piston rod (not shown), one end of the traction chain 24 is fixed on the outer gantry, and the other end bypasses the sprocket and is connected with the upper fork 4. When the top of the piston rod is lifted with the sprocket, the traction lifts the upper inner mast 22 and the upper fork 4 together. The accuracy of the lifting movement of the upper fork 4 can be ensured by the provision of the traction chain 24.

In another embodiment, a connecting rod for winding the traction chain 24 may be further disposed at the bottom of the upper inner gantry 22, so that the traction chain 24 may be conveniently installed through the connecting rod, and when the upper inner gantry 22 drives the sprocket to ascend, one end of the traction chain 24 is fixed to the upper outer gantry 21, and the upper fork 4 may be driven to ascend due to the fact that the total length of the traction chain 24 is unchanged and the other end of the traction chain 24 is driven to ascend.

In this embodiment, referring to fig. 3, the lower mast mechanism 3 includes a lower outer mast 31, a lower inner mast 32, and a lower hydraulic cylinder 33, the lower outer mast 31 is disposed on one side of the vehicle body 1, and the lower inner mast 32 is disposed on the lower outer mast 31 in a lifting manner. Specifically, a lower hydraulic cylinder 33 for driving the lower inner gantry 32 to lift is disposed at the bottom of the lower outer gantry 31, and the principle of the lower hydraulic cylinder 33 is similar to that of the above embodiment, which is not repeated herein. One side of the lower outer door frame 31 is fixedly connected to one side of the vehicle body 1, the other side of the lower outer door frame 31 is connected with a lower inner door frame 32 which can be lifted, one side of the lower inner door frame 32, which deviates from the lower outer door frame 31, is fixedly connected to the lower fork 5, and when the lower inner door frame 32 is lifted, the lower fork 5 is also pulled to lift.

In this embodiment, referring to fig. 3, two lower inner door frames 32 are provided, two lower inner door frames 32 are respectively located at two sides of the first avoiding groove 34, and two lower forks 5 are correspondingly provided. Meanwhile, the two lower hydraulic cylinders 33 can be correspondingly arranged, the two lower hydraulic cylinders 33 are respectively connected with the lower inner door frames 32 through piston rods, and the two lower hydraulic cylinders 33 respectively control the two lower inner door frames 32 in a lifting manner, so that the two lower forks 5 are respectively controlled, the adaptability of various picking and placing goods is improved, and the transportation efficiency of the forklift is improved.

In this embodiment, referring to fig. 2, the upper fork 4 includes an upper fork frame 41 and upper fork arms 42, two of the upper fork arms 42 are provided, and two of the upper fork arms 42 are respectively mounted on the upper fork frame 41, the lower fork 5 includes a lower fork frame 51 and a lower fork arm 52, and the lower fork arm 52 is mounted on the lower fork frame 51, and at the same time, the upper fork 4 is mounted above the lower fork 5.

In this embodiment, the upper fork frame 41 is disposed on a side of the upper mast mechanism 2 facing away from the vehicle body 1, the lower fork frame 51 is disposed on a side of the lower mast mechanism 3 facing away from the vehicle body 1 and the lower fork frame 51 is positioned below the upper fork frame 41 so that the upper fork frame 41 can be submerged in front of the lower fork frame 51. The upper fork carriage 41 and the lower fork carriage 51 serve as connecting members for the portal mechanism and the fork arms, so that the fork cargo range of the upper fork 4 is enlarged, and the applicability of the upper fork 4 and the lower fork 5 is improved.

In this embodiment, referring to fig. 2, a second avoidance groove 43 is formed at the bottom of the upper fork arm 42, the second avoidance groove 43 is adapted to the lower fork arm 52, and the lower fork arm 52 may be accommodated in the second avoidance groove 43. The second dodges the groove 43 and locates go up the bottom of yoke 42, and towards lower fork 5 sets up, works as go up fork 4 and fall to when minimum, lower fork 5 accepts in the dodge inslot of yoke, avoids lower fork 5 and last fork 4 to take place to interfere, dodges the stability that the groove set up has improved two fork truck inner structure, has also further improved the space storage ability of fork.

In this embodiment, referring to fig. 4 and 5, the lower fork 5 further includes a link mechanism 53, one end of the link mechanism 53 is provided with a carrier wheel 54, and the link mechanism 53 is located at the bottom of the lower fork arm 52, and when the lower fork 5 is lifted, the link mechanism 53 is folded to drive the carrier wheel 54 to pull down. When the lower inner door frame 32 lifts the lower fork 5, the link mechanism 53 drives the carrying wheel 54 to pull down to raise the height of the lower fork arm 52, so that the whole vehicle is balanced.

Working principle: the utility model provides a double-gantry forklift, which is characterized in that two sets of split type gantry mechanisms and two sets of corresponding forks are arranged, so that different operations are respectively carried out on an upper fork 5 and a lower fork 5, the efficiency of transporting goods by the forklift is improved, and the flexibility of taking and placing goods by the forks is also improved.

When picking up goods, the lower fork 5 and the upper fork 4 are lowered to the bottom, the vehicle body 1 runs to the goods to be transported, the upper fork arm 42 enters the fork hole of the goods to be transported, the ground tray or other carriers for loading the goods are subjected to fork picking, the upper fork arm 42 carries the goods to be transported to a certain height, the vehicle body 1 runs to another goods to be transported after the goods are lifted to a certain height, the lower fork 5 enters the fork hole of the other goods to be transported, the lower fork arm 52 carries the goods to be transported to a lifting motion, and meanwhile, the lower fork 5 can be arranged to be a plurality of goods and can respectively fork the goods.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. A dual-gate forklift, comprising:

a vehicle body;

the upper door frame mechanism is arranged on one side of the vehicle body;

the lower door frame mechanism is positioned below the upper door frame mechanism, a first avoiding groove is formed in the middle of the lower door frame mechanism, and the bottom of the upper door frame mechanism is arranged in the first avoiding groove in a penetrating mode;

the upper fork is arranged on one side of the upper portal frame mechanism in a lifting manner; and two lower forks are arranged, the two lower forks are respectively arranged on two sides of the lower gantry mechanism in a lifting manner, and the upper fork is positioned above the lower fork.

2. The double-gantry forklift according to claim 1, wherein the upper gantry mechanism comprises an upper outer gantry, an upper inner gantry and an upper hydraulic cylinder for driving the upper inner gantry to lift, the upper outer gantry is fixedly arranged on one side of the forklift body, the upper inner gantry is lifted and arranged inside the upper outer gantry, the upper fork is connected to one side of the upper inner gantry, which is away from the forklift body, and the upper inner gantry drives the upper fork to lift.

3. The dual-gantry forklift of claim 2, wherein said upper mast mechanism further comprises a traction chain wound between said upper inner mast and said upper hydraulic cylinder, and said upper inner mast moves said traction chain, said upper fork being fixedly connected to said upper inner mast.

4. The double-gantry forklift of claim 1, wherein said lower mast comprises a lower outer mast, a lower inner mast, and a lower hydraulic cylinder for driving said lower inner mast to rise and fall, said lower outer mast being disposed on one side of said body, said lower inner mast rising and falling being disposed on said lower outer mast, said lower fork being fixedly connected to said lower inner mast.

5. The forklift with double frames according to claim 4, wherein two lower inner door frames are provided, two lower inner door frames are respectively located at two sides of the first avoiding groove, and two lower fork frames are correspondingly arranged on two lower inner door frames.

6. The dual-gate forklift of claim 1, wherein said upper fork comprises an upper fork frame and upper fork arms, said upper fork arms being provided in two, and said upper fork arms being mounted on said upper fork frame, respectively.

7. The dual-gate forklift of claim 6, wherein said upper fork is positioned in front of said lower fork, said lower fork comprising a lower fork carriage and a lower fork arm, said lower fork arm being mounted on said lower fork carriage.

8. The dual-gate forklift of claim 7, wherein said upper fork is disposed on a side of said upper mast mechanism facing away from said body, said lower fork is disposed on a side of said lower mast mechanism facing away from said body and said lower fork is positioned below said upper fork such that said upper fork can be submerged in front of said lower fork.

9. The dual-gate forklift of claim 7, wherein a second avoidance groove is formed at the bottom of said upper fork arm, said second avoidance groove is adapted to said lower fork arm, and said lower fork arm is receivable in said second avoidance groove.

10. The dual-gate forklift of claim 7, wherein said lower fork further comprises a linkage, one end of said linkage is provided with a load wheel, and said linkage is located at the bottom of said lower fork arm, said linkage folding to drive said load wheel to pull down when said lower fork is lifted.

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