Pallet fork elevator

Abstract

The utility model relates to the field of logistics, in particular to a pallet fork elevator which comprises a lifting frame, a lifting mechanism is arranged on the lifting frame, a lift car is connected to the lifting mechanism, the lift car comprises a top plate connected with the lifting mechanism, side plates are fixed to the left end and the right end of the top plate, and a supporting mechanism is connected between the bottom ends of the two side plates. By means of the structure that the lifting mechanism is combined with the telescopic pallet fork, automatic lifting and conveying of goods provided with the supporting legs are achieved.

Description

Technical Field

[0001] The utility model relates to the field of logistics, in particular to a cargo fork lift. Background Art

[0002] A fork lift is a device used to lift goods. In the prior art, the lifting and transportation of goods are often carried out through a roller lift. For example, the patent with application number CN202120166670.6 discloses a multi-chain roller platform lifting mechanism. The multi-chain roller platform lifting mechanism lifts the goods through a chain transmission mechanism and a lifting platform mechanism, and transports the goods through a roller platform. However, the roller transportation of goods is for goods with a flat bottom. If the bottom of the goods is provided with support legs or support legs plus rollers, such goods cannot be transported through the roller platform. Therefore, there is an urgent need for a lifting and transportation device that can realize the goods with support legs. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fork lifter that solves the problems of the existing technology. The utility model achieves the lifting of goods through the setting of a lifting frame and a lifting mechanism, and realizes the automatic transmission of goods with support legs at the bottom through the telescopic fork.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a fork lifter, comprising a lifting frame, a lifting mechanism being provided on the lifting frame, a car being connected to the lifting mechanism, the car comprising a top plate connected to the lifting mechanism, side plates being fixed to the left and right ends of the top plate, a support mechanism being connected between the bottom ends of the two side plates, and a telescopic fork being provided on the support mechanism.

[0007] Preferably, the support mechanism includes a T-shaped seat fixed to the bottom of the telescopic fork, and four T-shaped seats are provided. The bottom of the T-shaped seat is fixed to the first support plate, and the left and right ends of the first support plate are fixed with second support plates, and the second support plate is fixed to the side plate. The front and rear ends of the two second support plates are fixed with third support plates, and the left and right ends of the third support plate are respectively fixed to the left and right side plates.

[0008] Preferably, the T-shaped seat includes a horizontal fixing block fixedly connected to the telescopic fork, a vertical fixing block is fixed on the bottom surface of the horizontal fixing block, the bottom of the vertical fixing block is fixed with the piston rod end of the cylinder, the cylinder is fixed on the bottom surface of the first support plate, and a sliding sleeve is fixed on the top surface of the first support plate, and the sliding sleeve is slidably connected to the vertical fixing block.

[0009] Preferably, the telescopic fork comprises two fixed arms fixed on a T-shaped seat, and the fixed arms are telescopically connected to fork legs via a driving mechanism.

[0010] Preferably, the driving mechanism includes a first motor fixed to the bottom of the fixed arm, a first sprocket is fixed on the output shaft of the first motor, the first sprocket is connected to the second sprocket through a chain, the second sprocket is fixed to the end of the rotating rod, the rotating rod passes through two fixed blocks, the two fixed blocks are respectively fixed on the bottom surfaces of the two fixed arms, an inverted U-shaped groove is provided on the fixed block, a third sprocket is fixed on the rotating rod part in the inverted U-shaped groove, and a chain matching the third sprocket is provided on the bottom surface of the fork foot.

[0011] Preferably, the fork leg includes a first fork leg slidably connected to the fixed arm, a second fork leg is fixed to the front end of the first fork leg, and the height of the second fork leg is slightly higher than that of the first fork leg.

[0012] Preferably, the lifting mechanism includes four fixed seats fixed on the top of the lifting frame, wherein a transmission rod is passed between the two fixed seats on the right side, and the two ends of the transmission rod are rotatably connected to the connecting seat, and the second motor is connected to the transmission rod, and a third sprocket and a fourth sprocket are fixed on the transmission rod part in the fixed seat, wherein the third sprocket is provided with a third chain, and the end of the third chain is fixed on the top plate, and the fourth sprocket is provided with a fourth chain, and the fourth chain is wrapped around a fifth sprocket, and the fifth sprocket is arranged in the fixed seat on the left, and the end of the fourth chain is fixed on the top plate.

[0013] (3) Beneficial effects

[0014] 1. The utility model realizes automatic lifting and transportation of goods provided with supporting legs through the structure of lifting mechanism combined with telescopic fork;

[0015] 2. The utility model is configured by a T-shaped seat composed of a horizontal fixing block, a vertical fixing block, a cylinder and a sliding sleeve. Through this configuration, the cylinder can push the T-shaped seat and the telescopic fork fixed on the T-shaped seat upward or lower it as a whole, so as to flexibly adjust the height of the telescopic fork. On the one hand, this configuration makes it more flexible for the telescopic fork to pick up goods. When the telescopic fork is used to fork goods, the cylinder can first adjust the telescopic fork to a height that is higher than the bottom surface of the cargo support legs and lower than the bottom surface of the cargo, which greatly facilitates the telescopic fork to fork the bottom of the cargo. On the other hand, the distance between the extension fork and the top surface of the third support plate can be flexibly adjusted according to the different lengths of the support legs of different goods, ensuring that the third support plate will not hinder the entire cargo from entering the car.

[0016] 3. The utility model sets the fork leg to be composed of a first fork leg and a second fork leg, and the height of the second fork leg is slightly higher than that of the first fork leg. Through the setting of the fork leg of this structure, the goods can be slightly tilted backward after being forked, preventing the goods from sliding forward out of the fork leg, thereby greatly improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the utility model.

[0018] Figure 2 It is an overall schematic diagram of the utility model.

[0019] Figure 3 It is an overall schematic diagram of the utility model.

[0020] Figure 4 It is a schematic diagram of the telescopic fork and T-shaped seat of the utility model.

[0021] Figure 5 It is a cross-sectional view of the T-shaped seat and the first support plate of the utility model.

[0022] Figure 6 It is a schematic diagram of the telescopic fork and T-shaped seat of the utility model.

[0023] Figure 7 It is a schematic diagram of the telescopic fork and T-shaped seat of the utility model.

[0024] In the figure: 1-lifting frame, 2-lifting mechanism, 3-car, 4-top plate, 5-side plate, 6-support mechanism, 7-telescopic fork, 8-T-type seat, 9-first support plate, 10-second support plate, 11-third support plate, 12-lateral fixed block, 13-vertical fixed block, 14-cylinder, 15-slide, 16-fixed arm, 17-drive mechanism, 18-fork foot, 19-first motor, 20-first sprocket, 21-second sprocket, 22-rotating rod, 23-fixed block, 24-inverted U-shaped groove, 25-third sprocket, 26-first fork foot, 27-second fork foot, 28-fixed seat, 29-transmission rod, 30-connecting seat, 31-second motor, 32-third chain, 33-fourth chain, 34-fifth sprocket. DETAILED DESCRIPTION

[0025] The following is a combination of the appended examples of the present invention Figure 1-7 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] The present invention provides a technical solution: a forklift, comprising a lifting frame 1, a lifting mechanism 2 being provided on the lifting frame 1, a car 3 being connected to the lifting mechanism 2, a top plate 4 being connected to the lifting mechanism 2, side plates 5 being fixed to the left and right ends of the top plate 4, a support mechanism 6 being connected between the bottom ends of the two side plates 5, a telescopic fork 7 being provided on the support mechanism 6, and when in operation, the cargo is first forked into the car 3 by the telescopic fork 7, and the telescopic fork 7 just forks into the space between the cargo support legs. After the cargo is forked into the car 3, the lifting mechanism 2 is started to lift the cargo to the required height, and then the telescopic fork 7 forks the cargo out of the car 3 and places it at a designated position. The present invention realizes the automatic lifting and conveying of cargo provided with support legs by combining the lifting mechanism 2 with the telescopic fork 7. The side plates 5 are slidably connected to the lifting frame 1.

[0027] The support mechanism 6 includes a T-shaped seat 8 fixed to the bottom of the telescopic fork 7. There are four T-shaped seats 8. The bottom of the T-shaped seat 8 is fixed to the first support plate 9. The left and right ends of the first support plate 9 are fixed to the second support plate 10, which is fixed to the side plate 5. The front and rear ends of the two second support plates 10 are fixed to the third support plate 11. The left and right ends of the third support plate 11 are respectively fixed to the left and right side plates 5. The T-shaped seat 8 supports the telescopic fork 7. The provision of four T-shaped seats 8 can provide stable support for the telescopic fork 7. In addition, the provision of the T-shaped seat 8 ensures a certain distance between the telescopic fork 7 and the top surface of the third support plate 11. In this way, when the telescopic fork 7 is forcing the cargo into the car 3, the third support plate 11 will not hinder the cargo support legs from entering the car 3, thereby ultimately ensuring that the cargo is smoothly forked into the car 3. A through slot for accommodating the drive mechanism 17 can be left between the two third support plates 11 of the support mechanism 6 of this structure. The top surface of the first support plate 9 , the top surface of the second support plate 10 and the top surface of the third support plate 11 are flush with each other.

[0028] The T-shaped seat 8 includes a horizontal fixing block 12 fixedly connected to the telescopic fork 7, a vertical fixing block 13 is fixed to the bottom surface of the horizontal fixing block 12, the bottom of the vertical fixing block 13 is fixed to the piston rod end of the cylinder 14, the cylinder 14 is fixed to the bottom surface of the first support plate 9, and a sliding sleeve 15 is fixed to the top surface of the first support plate 9, and the sliding sleeve 15 is slidably connected to the vertical fixing block 13. Through this arrangement, the cylinder 14 can push the T-shaped seat 8 and the telescopic fork 7 fixed on the T-shaped seat 8 upward or downward as a whole, thereby flexibly adjusting the height of the telescopic fork 7. On the one hand, this arrangement makes it more flexible for the telescopic fork 7 to fork the goods, because when the telescopic fork 7 forks the goods, the cylinder 14 can first adjust the telescopic fork 7 to a height that is higher than the bottom surface of the cargo support leg and lower than the bottom surface of the cargo, which greatly facilitates the telescopic fork to fork into the bottom of the goods. Then, the cylinder 14 is started to lift the telescopic fork 7 upward until the goods are lifted off its supporting surface, and then the telescopic fork 7 is retracted to store the goods into the car 3; on the other hand, this arrangement can flexibly adjust the distance between the telescopic fork 7 and the top surface of the third support plate 11 according to the different lengths of the support legs of different goods, to ensure that the third support plate 11 will not hinder the entire cargo from entering the car 3.

[0029] The telescopic fork 7 includes two fixed arms 16 fixed on the T-shaped seat 8. The fixed arms 16 are telescopically connected to fork legs 18 through a driving mechanism 17, wherein the fixed arms 16 are slidably connected to the fork legs 18.

[0030] The driving mechanism 17 includes a first motor 19 fixed to the bottom of the fixed arm 16, a first sprocket 20 is fixed to the output shaft of the first motor 19, the first sprocket 20 is connected to the second sprocket 21 by a chain, the second sprocket 21 is fixed to the end of the rotating rod 22, the rotating rod 22 passes through two fixed blocks 23, the two fixed blocks 23 are respectively fixed to the bottom surfaces of the two fixed arms 16, an inverted U-shaped groove 24 is provided on the fixed block 23, a third sprocket 25 is fixed to the portion of the rotating rod 22 in the inverted U-shaped groove 24, and a third sprocket 25 is fixed to the bottom surface of the fork leg 18. 25 matches the chain, which is an embodiment of the driving mechanism 17, wherein the first motor 19 drives the first sprocket 20 to rotate, thereby driving the second sprocket 21 to rotate, thereby driving the rotating rod 22 to rotate, thereby driving the third sprocket 25 to rotate, and then sending the chain on the bottom surface of the fork leg 18 forward or backward, thereby realizing the extension and retraction of the fork leg 18, wherein the chain on the bottom surface of the fork leg 18 is a straight chain, and the third sprocket 25 is engaged with the chain on the bottom surface of the fork leg 18, wherein the fixing block 23 and the fixing arm 16 are provided with a through groove for the third sprocket 25 to pass through.

[0031] The fork leg 18 includes a first fork leg 26 that is slidably connected to the fixed arm 16. A second fork leg 27 is fixed to the front end of the first fork leg 26. The height of the second fork leg 27 is slightly higher than that of the first fork leg 26. Through the arrangement of the fork leg 18 with this structure, the goods can be slightly tilted backward after being forked, thereby preventing the goods from sliding forward out of the fork leg 18, thereby greatly improving safety.

[0032] The lifting mechanism 2 includes four fixed seats 28 fixed to the top of the lifting frame 1, wherein a transmission rod 29 is passed between the two fixed seats 28 on the right side, and the two ends of the transmission rod 29 are rotatably connected to the connecting seat 30. The transmission rod 29 is connected to the second motor 31. The third sprocket and the fourth sprocket are fixed to the transmission rod 29 in the fixed seat 28, wherein the third sprocket is provided with a third chain 32, and the end of the third chain 32 is fixed to the top plate 4. The fourth sprocket is provided with a fourth chain 33, and the fourth chain 33 is wound around the fifth sprocket 34. The fifth sprocket 34 is arranged in the fixed seat 28 on the left side, and the end of the fourth chain 33 is fixed to the top plate 4. This is a specific embodiment of the lifting mechanism 2, wherein a pair of bevel gears are connected to the output shaft of the second motor 31, and the transmission rod 29 is fixed to one of the bevel gears. The transmission rod 29 is driven to rotate by the second motor 31, and finally drives the end of the third chain 32 and the end of the fourth chain 33 to rise and fall synchronously, thereby finally realizing the lifting and lowering of the car 3.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fork lift, characterized in that: The invention comprises a lifting frame (1), wherein the lifting frame (1) is provided with a lifting mechanism (2), the lifting mechanism (2) is connected to a car (3), the car (3) comprises a top plate (4) connected to the lifting mechanism (2), side plates (5) are fixed to the left and right ends of the top plate (4), a supporting mechanism (6) is connected between the bottom ends of the two side plates (5), and a telescopic fork (7) is provided on the supporting mechanism (6).

2. A fork lift according to claim 1, characterized in that: The support mechanism (6) comprises a T-shaped seat (8) fixed to the bottom of the telescopic fork (7), four T-shaped seats (8) are provided, the bottom of the T-shaped seat (8) is fixed to a first support plate (9), the left and right ends of the first support plate (9) are both fixed with second support plates (10), the second support plates (10) are fixed to the side plates (5), the front and rear ends of the two second support plates (10) are both fixed with third support plates (11), and the left and right ends of the third support plate (11) are respectively fixed to the left and right side plates (5).

3. A fork lift according to claim 2, characterized in that: The T-shaped seat (8) includes a transverse fixing block (12) fixedly connected to the telescopic fork (7), a vertical fixing block (13) is fixed on the bottom surface of the transverse fixing block (12), a piston rod end of a cylinder (14) is fixed to the bottom of the vertical fixing block (13), the cylinder (14) is fixed on the bottom surface of the first support plate (9), a sliding sleeve (15) is fixed on the top surface of the first support plate (9), and the sliding sleeve (15) is slidably connected to the vertical fixing block (13).

4. A fork lift according to claim 2, characterized in that: The telescopic fork (7) comprises two fixed arms (16) fixed on the T-shaped seat (8), and the fixed arms (16) are telescopically connected to fork legs (18) via a driving mechanism (17).

5. A fork lift according to claim 4, characterized in that: The driving mechanism (17) comprises a first motor (19) fixed to the bottom of the fixed arm (16); a first sprocket (20) is fixed to the output shaft of the first motor (19); the first sprocket (20) is connected to a second sprocket (21) via a chain; the second sprocket (21) is fixed to the end of a rotating rod (22); the rotating rod (22) passes through two fixed blocks (23); the two fixed blocks (23) are respectively fixed to the bottom surfaces of the two fixed arms (16); an inverted U-shaped groove (24) is provided on the fixed block (23); a third sprocket (25) is fixed to the portion of the rotating rod (22) in the inverted U-shaped groove (24); and a chain matching the third sprocket (25) is provided on the bottom surface of the fork leg (18).

6. A fork lift according to claim 4, characterized in that: The fork leg (18) comprises a first fork leg (26) slidably connected to the fixed arm (16); a second fork leg (27) is fixed to the front end of the first fork leg (26); and the height of the second fork leg (27) is slightly higher than that of the first fork leg (26).

7. The fork lift according to claim 1, characterized in that: The lifting mechanism (2) includes four fixed seats (28) fixed on the top of the lifting frame (1), wherein a transmission rod (29) is provided between the two fixed seats (28) on the right side, and the two ends of the transmission rod (29) are rotatably connected to the connecting seat (30), and the transmission rod (29) is connected to a second motor (31), and a third sprocket and a fourth sprocket are fixed on the transmission rod (29) part in the fixed seat (28), wherein the third sprocket is provided with a third chain (32), and the end of the third chain (32) is fixed to the top plate (4), and the fourth sprocket is provided with a fourth chain (33), and the fourth chain (33) is wound with a fifth sprocket (34), and the fifth sprocket (34) is arranged in the fixed seat (28) on the left side, and the end of the fourth chain (33) is fixed to the top plate (4).

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