Fork arm carrier structure and forklift

Abstract

The utility model provides a fork arm carrier structure and forklift, wherein the fork arm carrier structure comprises a fork arm carrier body, the inner side of the fork arm carrier body is provided with a connecting rod, the connecting rod is provided with a plurality of fork bodies, the adjacent fork bodies are arranged at intervals in the axis direction of the connecting rod, and the fork arm carrier structure is arranged on the fork arm carrier body. The pallet fork body is arranged to be suitable for moving in the axis direction of the connecting rod, and the pallet fork body is detachably connected with the connecting rod. According to the pallet fork frame structure, the pallet fork bodies are movably arranged on the outer side of the connecting rod, the driving piece can drive the pallet fork bodies to move through the output end so as to adjust the distance between every two adjacent pallet fork bodies, then the pallet fork bodies are suitable for transferring cargoes of different sizes, and the situation that the pallet fork bodies of a fixed structure are prone to falling off when the cargoes of the small size are forked is avoided; and meanwhile, the problem that the working efficiency is influenced by the replacement of the forklift is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fork truck technical field especially relates to a cargo fork frame structure and fork truck. BACKGROUND

[0002] The fork truck is one of commonly used carrying vehicles, is important equipment of the logistics industry, is all kinds of wheeled carrying vehicles for loading and unloading, stacking and short-distance transporting, heavy carrying operation of piece pallet goods, its volume is small, weight is light, compact structure, low noise, small pollution, low cost, flexible operation, is widely used in port, station, airport, freight yard, factory workshop, warehouse, circulation center and distribution center etc.

[0003] The existing fork truck has the following deficiencies in the use process:

[0004] The cargo fork frame structure is fixed, and it is not convenient to automatically adjust the spacing between the two forks, since the use range of the fork truck is relatively wide, the volume of the forked goods is large or small, and if the fork spacing of the cargo fork frame does not match the volume of the goods, the forked goods will be easily dropped, and then different specifications and sizes of the fork truck need to be replaced, and the replacement of the fork truck will seriously affect the work efficiency, and in addition, the fixed structure of the cargo fork frame structure is not convenient to replace and maintain when the fork body is damaged.

[0005] Therefore, there is an urgent need for a cargo fork frame structure and fork truck capable of adjusting the fork spacing and facilitating the replacement and maintenance of the forks. INVENTION CONTENTS

[0006] To solve the above technical problems, the utility model provides a cargo fork frame structure.

[0007] According to one purpose of the utility model, the utility model provides a cargo fork frame structure, which comprises a fork frame body, a connecting rod is installed on the inner side of the fork frame body, a plurality of fork bodies are arranged on the connecting rod, adjacent fork bodies are arranged in the axial direction of the connecting rod, the fork body is arranged to be movable along the axial direction of the connecting rod, and the fork body and the connecting rod are detachably connected.

[0008] A driving member is arranged on the radial outer side of the connecting rod, the driving member is located between two adjacent fork bodies, the driving member is provided with two opposite output ends, the output end and the fork body are one-to-one corresponding, and the driving member drives the fork body through the output end.

[0009] Preferably, a sliding hole is formed in the fork body, the fork body is sleeved on the radial outer side of the connecting rod through the sliding hole, a through hole is formed in the connecting rod and communicates with both ends of the axis, two mounting grooves are oppositely arranged on the fork body, the bottom of one of the mounting grooves communicates with the opposite side of the fork body to form a mounting hole, and the mounting rod is arranged between the mounting hole, the through hole and the mounting groove.

[0010] Preferably, the mounting hole and the mounting rod are connected through a bearing, the outer ring of the bearing is fixedly connected with the inner wall of the mounting hole, and the inner ring of the bearing is movably sleeved on the outer side of the mounting rod.

[0011] In the radial direction of the connecting rod, the cross-sectional shape of the mounting rod, the cross-sectional shape of the inner wall of the through hole and the cross-sectional shape of the inner ring of the bearing are all polygonal, and the outer wall of the mounting rod is close to the inner wall of the inner ring of the bearing and the inner wall of the through hole, respectively.

[0012] Preferably, one end of the mounting rod close to the mounting hole is a limiting end, and the other end of the mounting rod away from the mounting hole is a supporting end.

[0013] The limiting end is exposed to the outer side of the fork body, a limiting piece is connected to the limiting end, in the radial direction of the connecting rod, the size of the limiting piece is greater than the size of the mounting hole, and the side of the limiting piece close to the limiting end abuts against the outer side of the fork body.

[0014] The outer periphery of the supporting end is radially inwardly contracted to form a round rod, and the round rod is located in the mounting groove.

[0015] Preferably, both ends of the connecting rod in the length direction are close to the inner side of the fork body.

[0016] Preferably, the middle part of the connecting rod in the length direction is connected with the driving piece, the driving piece is a double-shaft motor, two output ends of the driving piece are respectively provided with lead screws, the fork body is threadedly connected with the lead screws, and the inner side of the fork body abuts against the ends of the lead screws.

[0017] Preferably, a positioning rod is connected below the middle part of the connecting rod in the length direction, one end of the positioning rod away from the connecting rod is fixedly provided with a fixed tube, and the driving piece is arranged on the inner side of the fixed tube.

[0018] The utility model also provides a forklift which comprises the above-mentioned fork frame structure and a forklift body and a portal frame, the bottom of the forklift body is provided with a moving wheel, the outer side of the forklift body is fixedly provided with the portal frame, and the outer side of the portal frame is slidably connected with the fork frame body.

[0019] Preferably, the moving wheels are divided into two groups, one group of moving wheels is arranged on each side of the forklift body in the direction of travel, the number of moving wheels in each group is two, the moving wheels in each group are arranged in the width direction of the forklift body, and one fender is arranged on the opposite side of the adjacent two groups of moving wheels.

[0020] Preferably, the top of the fork body is provided with an intercepting frame, and the distance between the intercepting frame and the door frame is 5cm.

[0021] Compared with the prior art, the forklift fork structure has the beneficial effects that:

[0022] The fork body is movably arranged on the outer side of the connecting rod, the driving member can drive the fork body to move through the output end to adjust the distance between the two adjacent fork bodies, so that the fork body is suitable for transporting goods of different sizes, avoids the problem that the fixed structure fork body is easy to fall off when picking up small size goods, and needs to replace the forklift of different specifications, and solves the problem that replacing the forklift affects the work efficiency.

[0023] When the fork body is damaged and needs to be replaced and maintained, the connecting member and the fork body can be disassembled, the spare fork body is installed at the original position of the fork body, so that the forklift can continue to work.

[0024] The utility model is further illustrated below in combination with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole expansion schematic view of the forklift fork structure of the utility model;

[0026] Figure 2 It is a connecting rod, a driving member and a fork body expansion schematic view of the forklift fork structure of the utility model;

[0027] Figure 3 It is a door frame and a fork body connection schematic view of the forklift fork structure and the forklift of the utility model;

[0028] Figure 4 It is a whole schematic view of the forklift fork structure and the forklift of the utility model. DETAILED DESCRIPTION

[0029] The following description is provided for the purpose of fully disclosing the present application in order to enable one skilled in the art to practice the present application. The preferred embodiments described below are merely exemplary and not limiting of the present application. The principles described below can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions without departing from the spirit and scope of the present application.

[0030] Referring to Figures 1-2 The present application provides a technical solution: a fork frame structure, comprising a fork frame body 4, a connecting rod 5 is installed on the inner side of the fork frame body 4, a plurality of fork bodies 11 are arranged on the connecting rod 5, adjacent fork bodies 11 are arranged in the axial direction of the connecting rod 5, the fork body 11 is arranged to be movable along the axial direction of the connecting rod 5, and the fork body 11 and the connecting rod 5 are detachably connected.

[0031] The radial outer side of the connecting rod 5 is provided with a driving member 14, the driving member 14 is located between two adjacent fork bodies 11, the driving member 14 is provided with two opposite output ends, the output ends and the fork bodies 11 one-to-one correspond, and the driving member 14 drives the fork bodies 11 through the output ends.

[0032] The fork body 11 is movably arranged on the outer side of the connecting rod 5, the driving member 14 can drive the fork body 11 to move through the output end, so as to adjust the distance between two adjacent fork bodies 11, and the fork body 11 is suitable for transporting goods of different volumes, avoiding the problem that the fixed structure fork body 11 is easy to fall off when forking small volume goods, and the problem that different specifications of forklifts need to be replaced, and the problem that the replacement of forklifts affects the work efficiency is solved.

[0033] When the fork body 11 needs to be replaced and maintained, the connecting member and the fork frame body 4 can be disassembled, the spare fork body 11 is installed at the position of the original fork body 11, so that the forklift can continue to work.

[0034] Regarding the detachable connection structure between the fork body 11 and the connecting rod 5, please continue to refer to Figure 1 and 2, Specifically, the fork body 11 is provided with a sliding hole, so that the fork body 11 does not swing and deviate when sliding at the outer edge position of the connecting rod 5, thereby ensuring that it moves stably in parallel. The fork body 11 is slidably sleeved on the radially outer side of the connecting rod 5. The connecting rod 5 is internally provided with a through hole communicating both ends of the axis. The fork body 4 is provided with two oppositely arranged mounting grooves 6. One bottom of the mounting groove 6 communicates with the opposite side of the fork body 4 to form a mounting hole 16. The mounting rod 7 is arranged between the mounting hole 16, the through hole and the mounting groove 6. In use, the mounting rod 7 can be separated from the inside of the mounting hole 16 on the fork body 4 and the through hole on the connecting rod 5. The connecting rod 5 and the lower fork body 11 are separated from the fork body 4. The fork body 11 is removed from the axial end of the connecting rod 5 along the axis direction of the connecting rod 5, thereby achieving disassembly of the fork body 11. The removed fork body 11 is transported to a maintenance site for maintenance. The spare fork body 11 is installed on the corresponding position of the connecting rod 5. The connecting rod 5 and the mounting rod 7 are reset, and the replacement of the fork body 11 is completed.

[0035] Further, referring to Figure 1 The mounting hole 16 and the mounting rod 7 are connected by a bearing 10. Specifically, the outer ring of the bearing 10 is fixedly connected with the inner wall of the mounting hole 16, and the inner ring of the bearing 10 is movably sleeved on the outer side of the mounting rod 7.

[0036] To ensure that the connecting rod 5 can stably move on the fork body 4 through the bearing 10 in cooperation with the mounting rod 7, without affecting the disassembly function of the mounting rod 7 on the connecting rod 5, further, in the radial direction of the connecting rod 5, the cross-sectional shape of the mounting rod 7, the cross-sectional shape of the inner wall of the through hole and the cross-sectional shape of the inner ring of the bearing 10 are all polygonal. The outer wall of the mounting rod 7 is close to the inner wall of the bearing 10 and the inner wall of the through hole, respectively. Preferably, the cross-sectional shape of the mounting rod 7, the cross-sectional shape of the inner wall of the through hole and the cross-sectional shape of the inner ring of the bearing 10 are all hexagonal.

[0037] Further, one end of the mounting rod 7 close to the mounting hole 16 is a limiting end, and the other end of the mounting rod 7 away from the mounting hole 16 is a supporting end.

[0038] The limiting end is exposed to the outside of the fork body 4. A limiting piece is connected to the limiting end. In the radial direction of the connecting rod 5, the size of the limiting piece is greater than the size of the mounting hole 16. The side of the limiting piece facing the limiting end abuts against the outside of the fork body 4. Preferably, the limiting piece is a disc-shaped limiting piece.

[0039] The outer periphery of the supporting end is radially inwardly contracted to form a round rod 8 which is located in the mounting groove 6. In use, the limiting member abuts against the outer side of the fork body 4, is arranged on the inner side of the bearing 10 through the limiting end of the mounting rod 7, and the supporting end of the mounting rod 7 is located on the inner side of the mounting groove 6, so that the mounting rod 7 is stably positioned on the inner wall of the connecting rod 5, the connecting rod 5 and the mounting rod 7 are prevented from being separated from the position at will, the convenience of the user in pulling the mounting rod 7 out of the inner side of the bearing 10 and the inner through hole of the connecting rod 5 is increased, and the practicability is improved.

[0040] Further, the two ends in the length direction of the connecting rod 5 are close to the inner side of the fork body 11, and further, the two ends in the length direction of the connecting rod 5 abut against the inner side of the fork body 11.

[0041] Regarding the driving structure between the driving member 14 and the fork body 11, referring to Figure 2 , the middle part in the length direction of the connecting rod 5 is connected with the driving member 14, the driving member 14 is a double-shaft motor, two output ends of the driving member 14 are respectively provided with lead screws 15, the fork body 11 is threadedly connected with the lead screws 15, the distal ends of the lead screws 15 abut against the inner side of the fork body 4, preferably, the inner side of the fork body 4 is provided with a rod groove which is matched with the distal ends of the lead screws 15, and a lead screw bearing is arranged on the inner side of the rod groove, wherein the connection mode between the lead screw bearing and the lead screw 15 is same as the connection mode between the mounting rod 7 and the bearing 10. In use, the driving member 14 drives the two lead screws 15 to synchronously rotate, the lead screws 15 push the fork body 11 to slide along the length direction of the connecting rod 5, the distance between the two fork bodies 11 is adjusted, and then the fork truck of different sizes does not need to be replaced when forks of different sizes are used.

[0042] In one embodiment, a positioning rod 12 is fixed below the middle part in the length direction of the connecting rod 5, one end of the positioning rod 12 away from the connecting rod 5 is fixed with a fixed tube 13, and the inner wall of the fixed tube 13 is provided with the driving member 14.

[0043] Referring to Figure 3 and 4 , the utility model also provides a fork truck, including above-mentioned fork frame structure, still include: fork truck body 1 and portal frame 3, the bottom of fork truck body 1 is fixedly equipped with mobile wheel 2, the outer side of fork truck body 1 is fixedly equipped with portal frame 3, the outer side of portal frame 3 is slidably connected with fork body 4;

[0044] The bottom of the forklift body 1 is provided with moving wheels 2, the moving wheels 2 are divided into two groups, one group of moving wheels 2 is arranged on each side of the forklift body 1 in the direction of travel, the number of moving wheels 2 in each group is two, and the moving wheels 2 in each group are arranged in the width direction of the forklift body 1, preferably, four moving wheels 2 are symmetrically arranged on the bottom of the forklift body 1, and one mudguard is arranged on the opposite side of each adjacent group of moving wheels 2. The mudguard can intercept the mud when the device travels on a muddy road, preventing the mud from splashing into the driver's cabin on the inside of the forklift body 1.

[0045] Further, the top of the fork body 4 is provided with an intercepting frame, and the distance between the intercepting frame and the door frame 3 is 5cm. When more goods are forked, the goods will not be in contact with the door frame 3, which plays a role in intercepting the goods, avoiding the forked goods from falling to the inside of the forklift body 1 due to the height being too high, and improving the safety of the device.

[0046] Working mode: when using the device, first drive the device to move and use the fork body 11 to fork the goods;

[0047] When the fork body 11 is damaged and needs to be replaced and maintained, first pull the limiting piece to pull out the hexagonal mounting rod 7 from the inside of the connecting rod 5 and the bearing 10, that is, the connecting rod 5 and the two fork bodies 11 can be directly taken out from the inside of the fork body 4 and transported to the maintenance site for maintenance, and the spare fork body 11 and the connecting rod 5 can be installed inside the fork body 4, so that the forklift body 1 can continue to work;

[0048] When the double-shaft motor driving piece 14 drives the two lead screws 15 to rotate synchronously, the distance between the two fork bodies 11 can be adjusted, so that different sizes of forklifts do not need to be replaced when forking different sizes of goods, improving the practicability of the device.

[0049] As described above, by driving the double-shaft motor to drive the two lead screws 15 to rotate synchronously, the distance between the two fork bodies 11 can be adjusted, avoiding the problem that the existing device is not convenient for adjusting the distance between the forks, which leads to easy falling when forking small volume goods, and thus the problem that different specifications of forklifts need to be replaced, which greatly delays the work efficiency of the workers, improving the practicability of the device;

[0050] The hexagonal rod is pulled out from the inner wall position of the connecting rod 5 and the bearing 10 by pulling the disc, then the connecting rod 5 and the two fork bodies 11 can be directly taken out from the inner wall position of the fork frame, so that they can be carried to a maintenance site for maintenance, and the spare fork body 11 and the connecting rod 5 can be installed to the inner wall position of the fork frame, so that the forklift body 1 can continue to work, and the convenience of assembling and disassembling the fork body 11 is improved.

[0051] The above-described embodiments are only used to illustrate the technical ideas and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and the present application cannot be limited to the patent application range of the present embodiment only, that is, any equivalent changes or modifications made according to the spirit disclosed in the present application still fall within the patent range of the present application.

Claims

1. A fork carriage structure comprising a fork carriage body (4), characterized in that, The inner side of the fork body (4) is provided with a connecting rod (5), a plurality of fork bodies (11) are arranged on the connecting rod (5), adjacent fork bodies (11) are arranged in the axial direction of the connecting rod (5), the fork body (11) is arranged to be movable along the axial direction of the connecting rod (5), and the fork body (11) and the connecting rod (5) are detachably connected; The radial outer side of the connecting rod (5) is provided with a driving member (14), the driving member (14) is located between adjacent two fork bodies (11), the driving member (14) is provided with two opposite output ends, the output ends and the fork bodies (11) are one-to-one corresponding, and the driving member (14) drives the fork bodies (11) through the output ends.

2. A fork carriage structure according to claim 1, wherein The fork body (11) is slidably sleeved on the radial outer side of the connecting rod (5) through a sliding hole formed in the fork body (11), the inside of the connecting rod (5) is provided with a through hole communicating both ends in the axial direction, the fork body (4) is provided with two oppositely arranged mounting grooves (6), and the bottom of one of the mounting grooves (6) communicates with the opposite side of the fork body (4) to form a mounting hole (16). The mounting rod (7) penetrates between the mounting hole (16), the through hole and the mounting groove (6).

3. A fork carriage structure according to claim 2, wherein The mounting hole (16) and the mounting rod (7) are connected through a bearing (10), the outer ring of the bearing (10) is fixedly connected with the inner wall of the mounting hole (16), and the inner ring of the bearing (10) is movably sleeved on the outer side of the mounting rod (7). In the radial direction of the connecting rod (5), the cross-sectional shape of the mounting rod (7), the cross-sectional shape of the inner wall of the through hole and the cross-sectional shape of the inner ring of the bearing (10) are all polygons, and the outer wall of the mounting rod (7) is close to the inner wall of the inner ring of the bearing (10) and the inner wall of the through hole, respectively.

4. A fork carriage structure according to claim 2, wherein The end of the mounting rod (7) close to the mounting hole (16) is a limiting end, and the end of the mounting rod (7) away from the mounting hole (16) is a supporting end. The limiting end is exposed to the outside of the fork body (4), a limiting member is connected to the limiting end, in the radial direction of the connecting rod (5), the size of the limiting member is greater than the size of the mounting hole (16), and the side of the limiting member towards the limiting end abuts against the outside of the fork body (4). The outer periphery of the supporting end is radially inwardly contracted to form a round rod (8), and the round rod (8) is located in the mounting groove (6).

5. The fork carriage structure according to claim 1, wherein Both ends of the connecting rod (5) in the length direction are close to the inner side of the fork body (11).

6. A fork carriage structure according to claim 1, wherein The middle part of the connecting rod (5) in the length direction is connected with the driving member (14), the driving member (14) is a double-shaft motor, two output ends of the driving member (14) are respectively provided with lead screws (15), the fork body (11) and the lead screw (15) are threadedly connected, and the tail end of the lead screw (15) abuts against the inner side of the fork body (4).

7. A fork carriage structure according to claim 6, wherein A positioning rod (12) is connected below the middle of the length direction of the connecting rod (5), one end of the positioning rod (12) away from the connecting rod (5) is fixed with a fixed tube (13), and the driving member (14) is arranged on the inner side of the fixed tube (13).

8. A fork lift truck comprising a fork carriage structure according to any one of the preceding claims 1-7, characterized in that, Also include a forklift body (1) and a mast (3), the bottom of the forklift body (1) is provided with a moving wheel (2), the outer side of the forklift body (1) is fixedly provided with the mast (3), and the outer side of the mast (3) is slidably connected with the fork body (4).

9. A fork lift truck as claimed in claim 8, characterised in that The moving wheels (2) are divided into two groups, one group of the moving wheels (2) is arranged on each side of the traveling direction of the forklift body (1), the number of the moving wheels (2) in each group is two, the moving wheels (2) in each group are arranged in the width direction of the forklift body (1) at intervals, and one fender is arranged on the opposite side of the adjacent two groups of the moving wheels (2).

10. A fork truck according to claim 9 wherein, The top of the fork body (4) is provided with an intercepting frame, and the distance between the intercepting frame and the mast (3) is 5 cm.

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