Assembly fork truck mast lifting device

Abstract

The application relates to the technical field of forklift mast lifting, and discloses an assembled forklift mast lifting device, which comprises a vehicle body, a lifting box is fixedly installed on the inner wall of the bottom of the vehicle body, a clamping box is slidably installed on the right side of the lifting box, a first motor is fixedly installed on the top inner wall of the lifting box, a lifting mechanism is arranged between the first motor and the lifting box, a sliding hole is formed in the right side of the lifting box, a second motor is fixedly installed on the front side of the clamping box, a bidirectional mechanism is arranged between the second motor and the clamping box, and a seat hole is formed in the right side of the clamping box; two clamping seats are slidably installed on the right side of the clamping box. The application has the following advantages and effects: the anti-falling mechanism can block the mast from the side to form a secondary protection structure, so that even if the mast is subjected to accidental vibration or external force, the mast can be effectively prevented from falling off the clamping seat, and the safety and stability of the mast during the lifting process are ensured.

Description

Technical Field

[0001] This application relates to the field of forklift mast lifting technology, and in particular to a forklift mast lifting device. Background Technology

[0002] Against the backdrop of the booming development of modern logistics and warehousing industries, forklifts, as key material handling equipment, directly impact the operational efficiency of the entire supply chain through their assembly efficiency and quality. The forklift mast, as the core load-bearing component enabling forklifts to lift and move goods, plays a crucial role in determining forklift performance during its assembly process. However, the traditional lifting devices currently used in forklift mast assembly have revealed numerous problems in practical applications, severely hindering the development of the forklift manufacturing industry.

[0003] In practical use, it has been found that traditional devices have obvious defects in the protection of the mast from falling off. Most devices rely on simple clamping structures and lack effective secondary protection measures. When the mast is subjected to vibration or external interference during the lifting process, it is very easy to fall off, which poses a serious safety hazard. Therefore, we propose a mast lifting device for forklifts to solve the above problems. Utility Model Content

[0004] The purpose of this application is to provide a mast lifting device for assembling forklifts, which can provide secondary protection for the mast during the lifting process, and prevent the mast from falling off and causing safety hazards.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a forklift mast lifting device, comprising a vehicle body, a lifting box fixedly installed on the inner wall of the bottom of the vehicle body, a clamping box slidably installed on the right side of the lifting box, a first motor fixedly installed on the inner wall of the top of the lifting box, a lifting mechanism provided between the first motor and the lifting box, a sliding hole opened on the right side of the lifting box, a second motor fixedly installed on the front side of the clamping box, a bidirectional mechanism provided between the second motor and the clamping box, a seat hole opened on the right side of the clamping box; two clamping seats slidably installed on the right side of the clamping box, a sliding groove opened on the adjacent side of the two clamping seats, an anti-detachment mechanism provided in the sliding groove, two piston cylinders fixedly installed on the inner wall of the right side of the lifting box, a sliding hole located between the two piston cylinders, a piston mechanism provided in the piston cylinder, a vent hole opened at the bottom of the piston cylinder, and a lifting plate fixedly installed at the bottom of the clamping box.

[0006] A further configuration of this application is as follows: the lifting mechanism includes a lead screw and a lead screw seat. The lead screw is fixedly installed on the output shaft of the first motor. The bottom end of the lead screw is rotatably connected to the inner wall of the bottom of the lifting box. The lead screw seat is threaded onto the lead screw. The lead screw seat is slidably connected to the sliding hole. The right side of the lead screw seat is fixedly connected to the left side of the lifting plate. Connecting plates are fixedly installed on both the front and rear sides of the lead screw seat.

[0007] By adopting the above technical solution and by setting up a lifting mechanism, the first motor can drive the lead screw seat to move upward, thereby achieving the purpose of lifting the lifting plate and the gantry together upward.

[0008] A further configuration of this application is as follows: the bidirectional mechanism includes a bidirectional screw and a screw seat. The bidirectional screw is fixedly installed on the output shaft of the second motor. The rear end of the bidirectional screw is rotatably connected to the inner wall of the rear side of the clamping box. Two screw seats are threaded on the bidirectional screw. The screw seats are slidably connected to the seat holes. The right side of the screw seat is fixedly connected to the left side of the corresponding clamping seat.

[0009] By adopting the above technical solution and by setting up a bidirectional mechanism, the second motor can drive the two screw seats to move closer or further apart, thereby achieving the purpose of driving the two clamping seats to move closer or further apart.

[0010] A further feature of this application is that the anti-detachment mechanism includes two anti-detachment blocks and two airbags. The anti-detachment blocks are slidably installed in the grooves. Airbags are fixedly installed on the inner walls of the two grooves on opposite sides. The adjacent sides of the two airbags are fixedly connected to the corresponding anti-detachment blocks. Air valves are provided on the airbags.

[0011] By adopting the above technical solution and by setting an anti-detachment mechanism, the inflated airbag can push the anti-detachment block to slide out in the groove, thereby achieving the purpose of the anti-detachment block blocking the gantry from the side and forming a secondary protective structure.

[0012] A further configuration of this application is: the piston mechanism includes a piston rod and a piston, a piston is slidably installed inside the piston cylinder, a piston rod is fixedly installed on the top of the connecting plate, and the top end of the piston rod is fixedly connected to the corresponding piston.

[0013] By adopting the above technical solution, and by setting up a piston mechanism, the piston rod can drive the piston to move upward, thereby compressing the gas inside the piston cylinder. The gas can then be filled into the airbag through a connecting hose, causing the airbag to inflate.

[0014] A further feature of this application is that a common connecting hose is provided between the piston cylinder and the corresponding airbag, with the top end of the connecting hose located above the piston.

[0015] By adopting the above technical solution and by providing a connecting hose, the gas inside the piston cylinder can be filled into the airbag through the connecting hose.

[0016] A further feature of this application is that a clamping pad is provided on the inner side of the clamping seat, and the clamping pad is located on the left side of the slide groove.

[0017] By adopting the above technical solution and by setting up a clamping pad, the clamping pad has good elasticity and friction, which can closely fit the surface of the gantry. This can achieve the purpose of firmly clamping the gantry while avoiding damage to the surface of the gantry.

[0018] A further feature of this application is that the same first fixing rod is fixedly installed on the inner wall of the top and the inner wall of the bottom of the lifting box, the first fixing rod is located on the left side of the first motor, and the lead screw seat is slidably sleeved on the first fixing rod.

[0019] By adopting the above technical solution and by setting a first fixed rod, the lead screw seat can move more smoothly up and down.

[0020] A further feature of this application is that the same second fixing rod is fixedly installed on the inner wall of the front side and the inner wall of the rear side of the clamping box. The second fixing rod is located on the left side of the bidirectional screw, and the screw seat is slidably sleeved on the second fixing rod.

[0021] By adopting the above technical solution and by setting a second fixing rod, the screw seat can move more smoothly back and forth.

[0022] A further feature of this application is that a handle is provided on the left side of the vehicle body, and omnidirectional wheels are provided at the four corners of the bottom of the vehicle body.

[0023] By adopting the above technical solution, and by setting up handles and casters, the operator can easily push the vehicle body through the handles and casters, thus facilitating the movement of the entire device to the assembly position.

[0024] The beneficial effects of this application are:

[0025] Through the cooperation of the second motor, bidirectional screw, screw seat, clamping seat and clamping pad, the motor can drive the two clamping seats to move closer to each other, and the two clamping pads can be tightly attached to the surface of the gantry. This can achieve a firm clamping of the gantry while avoiding damage to the surface of the gantry, and ensure that the gantry will not be displaced in subsequent operations.

[0026] By cooperating with the first motor, lead screw, lead screw seat and lifting plate, the first motor can drive the lifting plate to move upward, thereby lifting the gantry to the designated position.

[0027] Through the cooperation of the connecting plate, piston rod, piston, connecting hose, air bladder and slider, the lead screw seat can drive the piston to move upward, and the gas in the piston can be filled into the air bladder, causing the air bladder to expand. This pushes the anti-detachment block to slide out in the groove, so that the anti-detachment block can block the gantry from the side, forming a secondary protection structure. Even if the gantry is subjected to accidental vibration or external force, it can effectively prevent it from falling off the clamping seat, ensuring the safety and stability of the gantry during the lifting process. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural schematic diagram of a forklift mast lifting device according to this application;

[0030] Figure 2 This is a schematic diagram of the internal structure of a clamping box for assembling a forklift mast lifting device according to this application;

[0031] Figure 3 This is a schematic diagram of the internal structure of a lifting box for assembling a forklift mast lifting device according to this application;

[0032] Figure 4 This is a schematic diagram of structure A of a forklift mast lifting device according to this application.

[0033] In the diagram: 1. Vehicle body; 2. Lifting box; 201. First motor; 202. Lead screw; 203. Lead screw seat; 204. Connecting plate; 3. Clamping box; 301. Second motor; 302. Bidirectional screw; 303. Screw seat; 4. Clamping seat; 401. Clamping pad; 5. Slide groove; 501. Anti-detachment block; 6. Piston cylinder; 601. Piston rod; 602. Connecting hose; 603. Airbag; 7. Lifting plate; 8. Slide hole. Detailed Implementation

[0034] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] See Figures 1-4This application provides a lifting device for assembling a forklift mast, including a vehicle body 1. A lifting box 2 is fixedly installed on the inner wall of the bottom of the vehicle body 1. A clamping box 3 is slidably installed on the right side of the lifting box 2. A first motor 201 is fixedly installed on the inner wall of the top of the lifting box 2. A lifting mechanism is provided between the first motor 201 and the lifting box 2. A sliding hole 8 is opened on the right side of the lifting box 2. A second motor 301 is fixedly installed on the front side of the clamping box 3. A bidirectional mechanism is provided between the second motor 301 and the clamping box 3. A seat hole is opened on the right side of the clamping box 3. Two clamping seats 4 are slidably installed on the right side of the clamping box 3. A sliding groove 5 is opened on the adjacent side of the two clamping seats 4. An anti-detachment mechanism is provided in the sliding groove 5. Two piston cylinders 6 are fixedly installed on the inner wall of the right side of the lifting box 2. The sliding hole 8 is located between the two piston cylinders 6. A piston mechanism is provided in the piston cylinder 6. A vent hole is opened at the bottom of the piston cylinder 6. A lifting plate 7 is fixedly installed at the bottom of the clamping box 3.

[0036] Specifically, the lifting mechanism includes a lead screw 202 and a lead screw seat 203. The lead screw 202 is fixedly installed on the output shaft of the first motor 201. The bottom end of the lead screw 202 is rotatably connected to the inner wall of the bottom of the lifting box 2. The lead screw seat 203 is threaded on the lead screw 202. The lead screw seat 203 is slidably connected to the sliding hole 8. The right side of the lead screw seat 203 is fixedly connected to the left side of the lifting plate 7. Connecting plates 204 are fixedly installed on both the front and rear sides of the lead screw seat 203.

[0037] Specifically, the bidirectional mechanism includes a bidirectional screw 302 and a screw seat 303. The bidirectional screw 302 is fixedly installed on the output shaft of the second motor 301. The rear end of the bidirectional screw 302 is rotatably connected to the inner wall of the rear side of the clamping box 3. Two screw seats 303 are threaded on the bidirectional screw 302. The screw seats 303 are slidably connected to the seat holes. The right side of the screw seat 303 is fixedly connected to the left side of the corresponding clamping seat 4.

[0038] Specifically, the anti-detachment mechanism includes two anti-detachment blocks 501 and two airbags 603. The anti-detachment blocks 501 are slidably installed in the slide groove 5. The airbags 603 are fixedly installed on the inner walls of the two slide grooves 5 on the side away from each other. The adjacent side of the two airbags 603 is fixedly connected to the corresponding anti-detachment block 501. An air valve is provided on the airbag 603.

[0039] Specifically, the piston mechanism includes a piston rod 601 and a piston. The piston is slidably installed inside the piston cylinder 6, and the piston rod 601 is fixedly installed on the top of the connecting plate 204. The top end of the piston rod 601 is fixedly connected to the corresponding piston.

[0040] Specifically, the piston cylinder 6 and the corresponding airbag 603 are provided with the same connecting hose 602, with the top end of the connecting hose 602 located above the piston.

[0041] Specifically, a clamping pad 401 is provided on the inner side of the clamping seat 4, and the clamping pad 401 is located on the left side of the slide groove 5.

[0042] Specifically, the same first fixing rod is fixedly installed on the top inner wall and the bottom inner wall of the lifting box 2. The first fixing rod is located to the left of the first motor 201, and the lead screw seat 203 is slidably sleeved on the first fixing rod.

[0043] Specifically, the same second fixing rod is fixedly installed on the front inner wall and the rear inner wall of the clamping box 3. The second fixing rod is located on the left side of the bidirectional screw 302, and the screw seat 303 is slidably sleeved on the second fixing rod.

[0044] Specifically, a handle is provided on the left side of vehicle body 1, and swivel wheels are provided at the four corners of the bottom of vehicle body 1.

[0045] In this application, when assembling the forklift mast, the forklift mast is first placed stably on the lifting plate 7, which provides a stable initial bearing plane for the mast. Then, the second motor 301 is started, and its output shaft drives the bidirectional screw 302 to rotate. Due to the thread characteristics of the bidirectional screw 302, the two screw seats 303 will move in opposite directions along the second fixed rod, thereby causing the two clamping seats 4 to slide relative to each other. The clamping pad 401 on the inner side of the clamping seat 4 has good elasticity and friction, which can closely fit the mast surface, so as to achieve a firm clamping of the mast while avoiding damage to the mast surface and ensuring that the mast will not be displaced in subsequent operations.

[0046] Next, the first motor 201 is started, and its output shaft drives the lead screw 202 to rotate. Due to the threaded transmission, the lead screw seat 203 on the lead screw 202 moves smoothly upward along the first fixed rod. The right side of the lead screw seat 203 is fixedly connected to the lifting plate 7, thereby driving the lifting plate 7 and the gantry to rise together. During the upward movement of the lead screw seat 203, the connecting plates 204 on its front and rear sides move synchronously, driving the piston rod 601 to slide upward in the piston cylinder 6. As the piston rod 601 moves upward, the piston compresses the gas in the piston cylinder 6, which can be filled into the airbag 603 through the connecting hose 602, causing the airbag 603 to expand. The expanded airbag 603 can push the anti-detachment block 501 to slide out in the slide groove 5, so that the anti-detachment block 501 can block the gantry from the side, forming a secondary protection structure. Even if the gantry is subjected to accidental vibration or external force, it can effectively prevent it from falling off the clamping seat 4, ensuring the safety and stability of the gantry during the lifting process.

[0047] When the gantry needs to be disassembled, the air valve on the airbag 603 is opened, the air inside the airbag 603 is discharged, the airbag 603 contracts, and the anti-detachment block 501 is pulled to reset, which can avoid obstructing the disassembly of the gantry; by reversing the second motor 301, the two clamping seats 4 can be driven away from each other according to the above principle, so as to achieve the purpose of disassembling and assembling the gantry at a specified height.

Claims

1. A lifting device for assembling a forklift mast, characterized in that, The vehicle includes a vehicle body (1), a lifting box (2) is fixedly installed on the bottom inner wall of the vehicle body (1), a clamping box (3) is slidably installed on the right side of the lifting box (2), a first motor (201) is fixedly installed on the top inner wall of the lifting box (2), a lifting mechanism is provided between the first motor (201) and the lifting box (2), a sliding hole (8) is opened on the right side of the lifting box (2), a second motor (301) is fixedly installed on the front side of the clamping box (3), a bidirectional mechanism is provided between the second motor (301) and the clamping box (3), and a seat hole is opened on the right side of the clamping box (3). Two clamping seats (4) are slidably installed on the right side of the clamping box (3). A sliding groove (5) is provided on the adjacent side of the two clamping seats (4). An anti-detachment mechanism is provided in the sliding groove (5). Two piston cylinders (6) are fixedly installed on the inner wall of the right side of the lifting box (2). The sliding hole (8) is located between the two piston cylinders (6). A piston mechanism is provided in the piston cylinder (6). A vent hole is provided at the bottom of the piston cylinder (6). A lifting plate (7) is fixedly installed at the bottom of the clamping box (3).

2. The assembly forklift mast lifting device according to claim 1, characterized in that: The lifting mechanism includes a lead screw (202) and a lead screw seat (203). The lead screw (202) is fixedly installed on the output shaft of the first motor (201). The bottom end of the lead screw (202) is rotatably connected to the inner wall of the bottom of the lifting box (2). The lead screw seat (203) is threaded on the lead screw (202). The lead screw seat (203) is slidably connected to the sliding hole (8). The right side of the lead screw seat (203) is fixedly connected to the left side of the lifting plate (7). Connecting plates (204) are fixedly installed on the front and rear sides of the lead screw seat (203).

3. The assembly forklift mast lifting device according to claim 1, characterized in that: The bidirectional mechanism includes a bidirectional screw (302) and a screw seat (303). The bidirectional screw (302) is fixedly installed on the output shaft of the second motor (301). The rear end of the bidirectional screw (302) is rotatably connected to the inner wall of the rear side of the clamping box (3). Two screw seats (303) are threaded on the bidirectional screw (302). The screw seats (303) are slidably connected to the seat hole. The right side of the screw seat (303) is fixedly connected to the left side of the corresponding clamping seat (4).

4. The forklift mast lifting device according to claim 1, characterized in that: The anti-detachment mechanism includes two anti-detachment blocks (501) and two airbags (603). The anti-detachment blocks (501) are slidably installed in the groove (5). Airbags (603) are fixedly installed on the inner walls of the two grooves (5) on opposite sides. The adjacent sides of the two airbags (603) are fixedly connected to the corresponding anti-detachment blocks (501). Air valves are provided on the airbags (603).

5. The assembly forklift mast lifting device according to claim 2, characterized in that: The piston mechanism includes a piston rod (601) and a piston. The piston is slidably installed inside the piston cylinder (6). The piston rod (601) is fixedly installed on the top of the connecting plate (204). The top end of the piston rod (601) is fixedly connected to the corresponding piston.

6. The assembly forklift mast lifting device according to claim 1, characterized in that: The piston cylinder (6) and the corresponding airbag (603) are provided with the same connecting hose (602), and the top end of the connecting hose (602) is located above the piston.

7. The assembly forklift mast lifting device according to claim 1, characterized in that: A clamping pad (401) is provided on the inner side of the clamping seat (4), and the clamping pad (401) is located on the left side of the slide groove (5).

8. The assembly forklift mast lifting device according to claim 2, characterized in that: The top inner wall and bottom inner wall of the lifting box (2) are fixedly installed with the same first fixing rod. The first fixing rod is located to the left of the first motor (201). The lead screw seat (203) is slidably sleeved on the first fixing rod.

9. A forklift mast lifting device according to claim 3, characterized in that: The clamping box (3) has the same second fixing rod fixedly installed on the front inner wall and the rear inner wall. The second fixing rod is located to the left of the bidirectional screw (302), and the screw seat (303) is slidably sleeved on the second fixing rod.

10. A forklift mast lifting device according to claim 1, characterized in that: A handle is provided on the left side of the vehicle body (1), and omnidirectional wheels are provided at the four corners of the bottom of the vehicle body (1).

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