Anti-tipping mechanism of electric forklift

Abstract

The invention discloses an anti-tipping mechanism of an electric forklift, and relates to the technical field of electric forklifts. The side end of the door frame is slidably connected with a goods blocking frame. A pallet fork plate is fixedly connected to the side end of the goods blocking frame. A pallet is mounted on the pallet fork plate; goods are placed at the top end of the pallet. A supporting positioning plate is slidably connected into the goods blocking frame. Goods are placed at the top ends of the goods plates, the positions of the goods can be limited through the electric sliding rails, the rollover situation of the goods in the moving process is reduced, the electric push rods can be started according to the sizes of the goods, and the balls can make contact with the side ends of the goods through operation of the electric push rods; the rollover probability can be increased due to the serious high-altitude shaking condition, the rolling balls make contact with the side ends of the goods through the electric push rods, the high-altitude shaking probability of the goods is reduced, the positions of the goods are limited through the electric push rods and the rolling balls, and the high-altitude rollover condition of the goods is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electric forklifts, and in particular to an anti-rollover mechanism for electric forklifts. Background Art

[0002] A forklift is a mechanical device used for handling, stacking and loading and unloading goods. It is also called a forklift. An electric forklift is a forklift that uses electrical energy to drive it. It is usually used for cargo handling and stacking operations. Compared with traditional internal combustion engine forklifts, electric forklifts have the advantages of environmental protection, low noise and low maintenance cost.

[0003] A Chinese patent with authorization announcement number CN112062055B discloses a three-point anti-rollover mechanism for an electric forklift, comprising a support frame, the support frame comprising a crossbeam and two telescopic arm assemblies, the two telescopic arm assemblies being respectively connected to two ends of the crossbeam; a universal wheel, the universal wheel being arranged below the telescopic arm assembly; a rotating waist assembly, the rotating waist assembly being arranged on the crossbeam and used to control the lateral movement of the support frame; by driving the support frame to move sideways by the rotating waist assembly, it is possible to initially prevent it from rolling over, and the adjustment is also relatively convenient. If the support frame still has a tendency to roll over when adjusting its direction, the movable arm on the support frame can be extended to increase the length of the entire support frame, which can further increase its anti-rollover effect. Multiple protections can further prevent it from rolling over, and the effect is quite significant.

[0004] The shortcomings of the above-mentioned prior art solutions are: the above-mentioned solution can initially prevent the support frame from tipping over by rotating the waist assembly to drive the support frame to move sideways. If the support frame still has a tendency to tip over when the direction of the support frame is adjusted, the movable arm on the support frame can be extended to increase the length of the entire support frame, which can further increase its anti-tipping effect. Multiple protections can further prevent it from tipping over. However, the forklift is prone to shaking during the transportation process, especially during the lifting process of large goods, which increases the probability of the electric forklift cargo tipping over. However, the above-mentioned solution cannot stabilize the cargo by rotating only, and the rotation will make the cargo more likely to shake and tip over in the air. The probability of the electric forklift cargo shaking at high altitudes needs to be solved in order to reduce the tipping of the electric forklift cargo. Here we provide an anti-tipping mechanism for an electric forklift. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-rollover mechanism for an electric forklift to solve the problem in the prior art that large cargo is prone to shaking during the rising process, resulting in an increased probability of the electric forklift cargo rolling over. The probability of the electric forklift cargo shaking at high altitudes needs to be solved in order to reduce the problem of the electric forklift cargo rolling over.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] An anti-tipping mechanism for an electric forklift comprises a door frame; a side end of the door frame is slidably connected to a shelf; a side end of the shelf is fixedly connected to a fork plate; a cargo board is mounted on the fork plate; cargo pieces are placed on the top of the cargo board; a supporting positioning plate is slidably connected to the inside of the shelf; an electric slide rail is fixedly connected to the top of the supporting positioning plate; and a limiting unit is provided at the side end of the electric slide rail.

[0008] As a further solution of the present invention: the limiting unit includes an electric slider; the side end of the electric slider is fixedly connected to an electric push rod; the side end of the electric push rod is rotatably connected to a ball, and a product piece is provided on one side of the ball.

[0009] As a further solution of the present invention: a rotating motor is fixedly connected to the side end of the electric slide rail; a limiting arc plate is rotatably connected to the rotating motor, and a cargo piece is provided on one side of the limiting arc plate.

[0010] As a further solution of the present invention: a cylinder is fixedly connected to the interior of the fork plate; a limit baffle is fixedly connected to the top end of the cylinder; and a product piece is provided on one side of the limit baffle.

[0011] As a further solution of the present invention: a fixing plate is fixedly connected to the side end of the shelf; a positioning hole is opened inside the fixing plate; and a positioning rod is inserted inside the positioning hole.

[0012] As a further solution of the present invention: a magnet sheet is fixedly connected to the side end of the positioning rod, and the magnet sheet corresponds to the supporting positioning plate.

[0013] As a further solution of the present invention: a plurality of groups of tooth blocks are fixedly connected to the side ends of the limit arc plates, the tooth blocks are made of frosted material, and a product piece is arranged on one side of the tooth blocks.

[0014] As a further solution of the present invention: a side end of the limit baffle is fixedly connected with a tooth plate, and a side end of the tooth plate is provided with a cargo plate.

[0015] The beneficial effects of the present invention are as follows: cargo pieces are placed on the top of the cargo plate, and then the fork plate is inserted into the interior of the cargo plate, thereby connecting the fork plate to the cargo plate; multiple sets of electric slide rails are arranged at both ends of the cargo pieces; the electric slide rails can be used to limit the position of the cargo pieces, thereby reducing the possibility of the cargo pieces tipping over during movement; the electric push rod can be started according to the size of the cargo pieces; the operation of the electric push rod can make the ball bearings contact with the side ends of the cargo pieces; when the shelf is moved to a high altitude on the door frame, severe shaking at high altitude will increase the probability of tipping over; the electric push rod can be used to make the ball bearings contact with the side ends of the cargo pieces, thereby reducing the possibility of the cargo pieces tipping over at high altitudes; the electric push rod and the ball bearings can be used to limit the position of the cargo pieces, thereby reducing the possibility of the cargo pieces tipping over at high altitudes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a three-dimensional diagram of the fork plate structure of the present invention;

[0019] Figure 3 It is a three-dimensional diagram of the structure of the tooth block in the present invention;

[0020] Figure 4 The present invention Figure 3 Enlarged view of point A in the middle.

[0021] In the figure: 1. gantry; 2. shelf stop; 3. fork plate; 4. cargo plate; 5. cargo piece; 6. support positioning plate; 7. electric slide rail; 8. electric push rod; 9. rotating motor; 10. limit arc plate; 11. limit baffle; 12. tooth block; 13. retaining plate; 14. positioning rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 4 As shown, an anti-tipping mechanism for an electric forklift comprises a door frame 1; a side end of the door frame 1 is slidably connected to a shelf 2; a side end of the shelf 2 is fixedly connected to a fork plate 3; a cargo plate 4 is mounted on the fork plate 3; a cargo piece 5 is placed on the top of the cargo plate 4; a supporting positioning plate 6 is slidably connected inside the shelf 2; an electric slide rail 7 is fixedly connected to the top of the supporting positioning plate 6; a limiting unit is provided at the side end of the electric slide rail 7.

[0024] Before work, place the cargo piece 5 on the top of the cargo plate 4, and then insert the fork plate 3 into the interior of the cargo plate 4, so that the fork plate 3 is connected to the cargo plate 4, and the side end of the cargo plate 4 can be contacted through the shelf 2 to improve the tightness, and the support positioning plate 6 is installed on the shelf 2. A plurality of electric slide rails 7 are arranged on the support positioning plate 6. The support positioning plate 6 is made of steel. The normal operation of the electric slide rails 7 can be ensured by the support positioning plate 6. The electric slide rails 7 are arranged at both ends of the cargo piece 5. The position of the cargo piece 5 can be limited by the electric slide rails 7 to reduce the cargo piece 5 in In case of rollover during movement, the electric push rod 8 can be started according to the size of the cargo piece 5. The operation of the electric push rod 8 can make the ball contact with the side end of the cargo piece 5. When the shelf 2 is moved to a high altitude on the door frame 1, severe shaking at high altitude will increase the probability of rollover. The electric push rod 8 can be used to make the ball contact with the side end of the cargo piece 5 to reduce the shaking probability of the cargo piece 5 at high altitude. The position of the cargo piece 5 is limited by the electric push rod 8 and the ball. The electric push rod 8 can slide on the electric slide rail 7, and the position of the electric push rod 8 can be adjusted according to the size of the cargo piece 5.

[0025] The limiting unit comprises an electric slider; an electric push rod 8 is fixedly connected to the side end of the electric slider; a ball is rotatably connected to the side end of the electric push rod 8, and a product piece 5 is provided on one side of the ball.

[0026] A plurality of sets of electric slide rails 7 are arranged at both ends of the cargo piece 5. The electric slide rails 7 can be used to limit the position of the cargo piece 5 and reduce the possibility of the cargo piece 5 tipping over during movement. The electric push rod 8 can be started according to the size and width of the cargo piece 5. The operation of the electric push rod 8 can make the ball contact with the side end of the cargo piece 5. When the shelf 2 is moved to a high altitude on the door frame 1, severe shaking at high altitude will increase the probability of tipping over. The electric push rod 8 can be used to make the ball contact with the side end of the cargo piece 5 and reduce the possibility of shaking of the cargo piece 5 at high altitude. The position of the cargo piece 5 is limited by the electric push rod 8 and the ball. The electric push rod 8 can slide on the electric slide rails 7 and the position of the electric push rod 8 can be adjusted according to the size of the cargo piece 5.

[0027] A rotating motor 9 is fixedly connected to the side end of the electric slide rail 7 ; a limiting arc plate 10 is rotatably connected to the rotating motor 9 , and a product piece 5 is provided on one side of the limiting arc plate 10 .

[0028] When the cargo plate 4 is connected to the fork plate 3, the position of the cargo piece 5 can be limited by the electric slide rail 7 and the electric push rod 8 to reduce the shaking of the cargo piece 5 in the air. At this time, the staff can start the rotating motor 9 according to the situation. The rotating motor 9 can make the limiting arc plate 10 rotate. The rotation of the limiting arc plate 10 will contact the surface of the cargo piece 5. The position of the cargo piece 5 can be limited by the limiting arc plate 10. A plurality of groups of limiting arc plates 10 are provided on the electric slide rail 7. The cooperation of the plurality of groups of limiting arc plates 10 and the electric push rod 8 can improve the shaking of the cargo piece 5 in the air and reduce the rollover of the cargo piece 5.

[0029] The interior of the fork plate 3 is fixedly connected with a cylinder; the top end of the cylinder is fixedly connected with a limit baffle 11; and a product piece 5 is provided on one side of the limit baffle 11.

[0030] When the cargo pallet 4 is installed on the fork plate 3, the cylinder is used to slide the limit baffle 11, and the limit baffle 11 will fit to the side end of the cargo pallet 4. The side end of the cargo pallet 4 is limited by the limit baffle 11, which reduces the probability of the cargo pallet 4 shaking during the movement of the door frame 1 and improves the safety of empty installation and picking up.

[0031] A fixing plate 13 is fixedly connected to the side end of the shelf 2 ; a positioning hole is formed inside the fixing plate 13 ; a positioning rod 14 is inserted into the positioning hole.

[0032] The position of the support positioning plate 6 can be adjusted according to the width size of the cargo piece 5. The support positioning plate 6 can slide inside the shelf 2. After the position of the support positioning plate 6 is slidably adjusted, the positioning rod 14 is inserted into the interior of the support positioning plate 6 through the positioning hole inside the fixing plate 13. The position of the support positioning plate 6 is limited by the positioning rod 14 to avoid random sliding during work. It can also be adjusted according to the width size of the cargo piece 5 to cooperate with the position limitation of the electric push rod 8.

[0033] A magnet sheet is fixedly connected to the side end of the positioning rod 14 , and the magnet sheet corresponds to the supporting positioning plate 6 .

[0034] When the positioning rod 14 is inserted into the interior of the supporting positioning plate 6, the magnet sheet at the side end of the positioning rod 14 adsorbs the supporting positioning plate 6 through magnetic attraction, thereby limiting the position of the positioning rod 14 inside the supporting positioning plate 6, avoiding random sliding during operation, and improving the limitation of the position of the supporting positioning plate 6.

[0035] The side ends of the limiting arc plates 10 are fixedly connected with a plurality of groups of latching tooth blocks 12 . The latching tooth blocks 12 are made of frosted material, and a product piece 5 is disposed on one side of the latching tooth block 12 .

[0036] The rotation of the limiting arc plate 10 causes the latch block 12 to rotate together. The rotation of the latch block 12 will get stuck on the surface of the cargo piece 5. The frosted material of the latch block 12 will increase the friction with the cargo piece 5. Because the shaking of the cargo piece 5 will cause slight rotation or position changes, these changes will rub against the latch block 12, and the friction will reduce the shaking. Reducing the shaking will reduce the chance of rollover, thereby greatly improving the efficiency of normal transportation of the cargo piece 5.

[0037] A latch plate is fixedly connected to the side end of the limit baffle 11 , and a cargo plate 4 is provided at the side end of the latch plate.

[0038] When the limit baffle 11 contacts the side end of the cargo pallet 4, the tooth plate will contact the side end of the cargo pallet 4. The tooth plate can increase the friction with the side end of the cargo pallet 4 and improve the position stability of the cargo pallet 4 and the fork plate 3. Because the cargo pallet 4 will rotate slightly when shaking, the friction of the tooth plate can reduce the rotation of the cargo pallet 4, thereby reducing the shaking and the side overturning of the cargo piece 5 at high altitude.

[0039] The working principle of the present invention is as follows: before work, the cargo piece 5 is placed on the top of the cargo plate 4, and then the cargo fork plate 3 is inserted into the interior of the cargo plate 4, so that the cargo fork plate 3 is connected to the cargo plate 4, and the side end of the cargo plate 4 can be contacted through the backrest shelf 2 to improve the tightness, and the support positioning plate 6 is installed on the backrest shelf 2. A plurality of groups of electric slide rails 7 are arranged on the support positioning plate 6. The support positioning plate 6 is made of steel material. The normal operation of the electric slide rails 7 can be ensured by the support positioning plate 6. The electric slide rails 7 are arranged at both ends of the cargo piece 5. The position of the cargo piece 5 can be limited by the electric slide rails 7, which reduces the cargo piece 5 in the process of moving. In case of rollover, the electric push rod 8 can be started according to the size of the cargo piece 5. The operation of the electric push rod 8 can make the ball contact with the side end of the cargo piece 5. When the shelf 2 is moved to a high altitude on the door frame 1, the high-altitude shaking situation will increase the probability of rollover. The electric push rod 8 is used to make the ball contact with the side end of the cargo piece 5 to reduce the shaking probability of the cargo piece 5 at high altitude. The position of the cargo piece 5 is limited by the electric push rod 8 and the ball. The electric push rod 8 can slide on the electric slide rail 7. The position of the electric push rod 8 can be adjusted according to the size of the cargo piece 5; the support can be adjusted according to the width of the cargo piece 5. The position of the positioning plate 6, the supporting positioning plate 6 can slide inside the shelf 2, and after the position of the supporting positioning plate 6 is slidably adjusted, the positioning rod 14 is inserted into the interior of the supporting positioning plate 6 through the positioning hole inside the retaining plate 13, and the position of the supporting positioning plate 6 is limited by the positioning rod 14 to avoid random sliding during work, and can also be adjusted according to the width size of the goods 5 to cooperate with the position limitation of the electric push rod 8; when the positioning rod 14 is inserted into the interior of the supporting positioning plate 6, the magnet sheet at the side end of the positioning rod 14 adsorbs the supporting positioning plate 6 through the magnetic attraction force, thereby limiting the position of the positioning rod 14 The inside of the supporting positioning plate 6 is prevented from sliding randomly during the working process, and the limitation of the position of the supporting positioning plate 6 is improved; when the cargo plate 4 is installed on the fork plate 3, the limit baffle 11 is slid by the cylinder, and the limit baffle 11 will fit to the side end of the cargo plate 4, and the side end of the cargo plate 4 is limited by the limit baffle 11, so as to reduce the probability of the cargo plate 4 shaking during the movement of the door frame 1. When the limit baffle 11 contacts the side end of the cargo plate 4, the tooth plate will contact the side end of the cargo plate 4, and the tooth plate can increase the friction with the side end of the cargo plate 4, thereby improving the position stability of the cargo plate 4 and the fork plate 3 and reducing the shaking;When the cargo plate 4 is connected to the fork plate 3, the position of the cargo piece 5 can be limited by the electric slide rail 7 and the electric push rod 8. In order to reduce the shaking of the cargo piece 5 in the air, the staff can start the rotating motor 9 according to the situation. The rotating motor 9 can make the limiting arc plate 10 rotate. The rotation of the limiting arc plate 10 will contact the surface of the cargo piece 5. The position of the cargo piece 5 can be limited by the limiting arc plate 10. A plurality of groups of limiting arc plates 10 are provided on the electric slide rail 7. The cooperation of the plurality of groups of limiting arc plates 10 and the electric push rod 8 can improve the The high-altitude shaking of the goods 5 can also reduce the overturning of the goods 5; the rotation of the limit arc plate 10 causes the tooth block 12 to rotate together, and the tooth block 12 rotates and is stuck on the surface of the goods 5. The frosted material of the tooth block 12 can increase the friction with the goods 5. Because the shaking of the goods 5 will cause slight rotation or position changes, these changes will rub against the tooth block 12, and the friction will reduce the shaking, thereby reducing the probability of overturning, greatly improving the efficiency of normal transportation of the goods 5. ;

[0040] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An anti-tilt mechanism for an electric forklift, characterized in that: The invention comprises a door frame (1); a side end of the door frame (1) is slidably connected to a shelf (2); a side end of the shelf (2) is fixedly connected to a fork plate (3); a cargo plate (4) is mounted on the fork plate (3); a cargo piece (5) is placed on the top of the cargo plate (4); a supporting positioning plate (6) is slidably connected inside the shelf (2); an electric slide rail (7) is fixedly connected to the top of the supporting positioning plate (6); and a limiting unit is provided at the side end of the electric slide rail (7).

2. The anti-tilt mechanism for an electric forklift according to claim 1, characterized in that: The limiting unit comprises an electric slider; the side end of the electric slider is fixedly connected to an electric push rod (8); the side end of the electric push rod (8) is rotatably connected to a ball bearing, and a product piece (5) is provided on one side of the ball bearing.

3. The anti-tilt mechanism for an electric forklift according to claim 1, characterized in that: A rotating motor (9) is fixedly connected to the side end of the electric slide rail (7); a limiting arc plate (10) is rotatably connected to the rotating motor (9), and a product piece (5) is provided on one side of the limiting arc plate (10).

4. The anti-tilt mechanism for an electric forklift according to claim 1, characterized in that: The interior of the cargo fork plate (3) is fixedly connected with a cylinder; the top end of the cylinder is fixedly connected with a limit baffle (11); and a cargo piece (5) is provided on one side of the limit baffle (11).

5. The anti-tilt mechanism for an electric forklift according to claim 1, characterized in that: A fixing plate (13) is fixedly connected to the side end of the shelf (2); a positioning hole is provided inside the fixing plate (13); and a positioning rod (14) is inserted inside the positioning hole.

6. The anti-tilt mechanism for an electric forklift according to claim 5, characterized in that: A magnet sheet is fixedly connected to the side end of the positioning rod (14), and the magnet sheet corresponds to the supporting positioning plate (6).

7. The anti-tilt mechanism for an electric forklift according to claim 3, characterized in that: The side ends of the limiting arc plates (10) are fixedly connected with a plurality of groups of tooth blocks (12), the tooth blocks (12) are made of frosted material, and a product piece (5) is provided on one side of the tooth blocks (12).

8. The anti-tilt mechanism for an electric forklift according to claim 4, characterized in that: The side end of the limit baffle (11) is fixedly connected to a latch plate, and the side end of the latch plate is provided with a cargo plate (4).

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