A grab-type material transport

Abstract

The present application relates to the field of transport equipment, specifically to a grabbing type material transport equipment, which comprises a rectangular frame body; the end of each hanging beam is rotatably connected with a movable block, the lower end surface of the movable block is fixedly connected with an electric push rod, the end of the electric push rod is fixedly connected with a U-shaped base block, the piston rod of the electric push rod penetrates into the base block and is fixedly connected with a sliding block, the two sides of the sliding block are symmetrically rotatably connected with push-pull rods, the end of the push-pull rod is rotatably connected with a clamping block, the clamping block is rotatably connected in a window formed in the side wall of the base block, and the clamping blocks are symmetrically arranged in the window; the rear side of the frame body is fixedly connected with a handle; through the structural design of the clamping block and the push-pull rod, the function of gripping materials is realized, the transport equipment has simple structure, low manufacturing cost, and flexible use, is suitable for narrow space working area, and the cooperation of the base block and the clamping block makes the transport equipment suitable for pipe body or cylindrical material.

Description

Technical Field

[0001] This invention relates to the field of transportation equipment, specifically a gripping material transport device. Background Technology

[0002] In production workshops, transportation tools are frequently used to transfer materials. Since the handling of materials is generally limited to within the workshop, forklifts or gantry cranes are commonly used transportation tools.

[0003] Operating a forklift requires a driver's license, which limits the number of people who are not qualified to drive this type of vehicle. At the same time, there are blind spots on forklifts. Due to the frame and the operator's line of sight, the driver cannot see obstacles on the lower edge of the forklift. In addition, the forklift's lifting method requires moving the material onto its forks and then lowering it. The forklift must then be moved backward to finally complete the material transport. Moving backward requires available space.

[0004] Gantry cranes are used for lifting operations with special characteristics. They are generally used to lift raw materials with large tonnage. If raw materials with smaller volume and weight are moved using gantry cranes, it will be time-consuming, material-consuming, and energy-consuming, which is not worthwhile.

[0005] Therefore, a gripping material transport device is proposed to address the above problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, this invention proposes a gripping material transport device.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A gripping material transport device of this invention includes a rectangular frame, with V-shaped support frames symmetrically fixed to the bottom of the frame. Wheels are rotatably connected to each support frame. Multiple lifting beams are fixed to the front side of the frame, and a movable block is rotatably connected to the end of each lifting beam. An electric push rod is fixed to the lower end of the movable block, and a U-shaped base block is fixed to the end of the electric push rod. The piston rod of the electric push rod passes through the base block and is fixed to a slider. Push-pull rods are symmetrically rotatably connected to both sides of the slider, and clamping blocks are rotatably connected to the ends of the push-pull rods. The clamping blocks are rotatably connected to windows opened on the side wall of the base block, and the clamping blocks are symmetrically arranged within the windows. A handle is fixed to the rear side of the frame. The electric push rods are driven by a power source on the frame. When in use, this transport device pushes the device to the material side, causing the base block... Place the base block above the material, then raise the handle to bring it close to the material. This conveying device is particularly suitable for cylindrical or tubular materials. The material is placed on the ground by a pad, and the opening of the base block is close to the material. After the material is placed between the clamping blocks, drive the electric actuator to push the slider towards the material. At the same time, the clamping blocks rotate, and their lower ends come together to clamp the material. Then, press down the handle and push the conveying device to move, transferring the material to the designated location. Furthermore, the operator can control this conveying device from the ground, with a clear and wide field of vision, and can effectively detect debris in the path of the conveying device. The conveying device has a simple structure, low manufacturing cost, and flexible use, making it suitable for confined work areas. The cooperation between the base block and the clamping blocks makes this conveying device suitable for tubular or cylindrical materials.

[0008] Preferably, recesses are formed on the opposite sidewalls of the two clamping blocks, and clamping plates are rotatably connected within the recesses; an adjusting bolt is rotatably connected to the back of each clamping block, with the end of the adjusting bolt threaded through the recess and pressing against the back of the clamping plate; this conveying device is suitable for pipes or cylindrical materials, but the diameter of the materials varies. Furthermore, due to the design of the slider and push-pull rod, the vertical movement of the slider is limited, resulting in gaps at the lower ends of the clamping blocks. For small materials, these gaps can cause them to slip out when gripping. Therefore, clamping plates are provided on the clamping blocks. Rotating the adjusting bolt pushes the lower ends of the clamping plates together. When the clamping blocks come together, the lower ends of the clamping plates press against each other, enveloping the material, thus enabling the gripping of even smaller materials and improving the flexibility and adaptability of the conveying device.

[0009] Preferably, a spring is fixedly connected to the lower end face of the slider, and a cover plate is fixedly connected to the end of the spring. The cover plate is C-shaped. When the conveying equipment is handling irregular materials, such as materials with a small diameter at one end and a large diameter at the other end, the vibration generated when the conveying equipment moves makes it easy for the material to vibrate and detach from the clamping block, or multiple materials are gripped, causing them to shake and collide with each other, generating noise. Therefore, the cover plate is provided. The cover plate works in conjunction with the spring. While the material is gripped in the clamping block, the cover plate also presses against the material. The design of the cover plate shape can wrap and compress the material, improving the stability of the material in the clamping block.

[0010] Preferably, the handle includes a sleeve and a telescopic rod; the sleeve is fixedly connected to the frame, and a rack is fixedly connected to the upper and lower surfaces inside the sleeve; one end of the telescopic rod has a notch, and gears are symmetrically rotatably connected within the notch, meshing with the rack; a retaining plate is provided between the two gears, and multiple retaining teeth are fixedly connected to both the upper and lower surfaces of the retaining plate, engaging with the teeth on the gears; a sliding layer is provided within the notch, and a sliding hole is provided at the bottom of the sliding layer, extending through to the other end of the telescopic rod; the retaining plate is slidably connected within the sliding layer, and a top rod is rotatably connected to the end of the retaining plate, extending outside the sliding hole; a handle is fixedly connected to the other end of the telescopic rod, and an arc-shaped push-pull plate is provided in the middle of the crossbar of the handle, with the push-pull plate fixedly connected to the top rod; this transport device utilizes the lever principle to grab and lift materials. Since the weight of materials varies, and the length of the handle is fixed, it is difficult for operators to press down the handle when gripping heavier materials. Therefore, the handle is designed to be telescopic, which is equivalent to increasing the torque of the lever. Pulling the push-pull plate backward causes the push-pull plate to move backward, and at the same time, the push-pull plate causes the locking plate to disengage from the two gears. At this time, the two gears are in a free state. Pulling the telescopic rod to move it out of the sleeve or pushing the telescopic rod into the sleeve causes the rack and pinion gears to rotate, thereby changing the torque of the lever, so as to easily lift and transport materials. The gears and notches are designed with damped rotation, so that the telescopic rod can move smoothly in the sleeve when moving inside the sleeve, which makes it convenient for operators to adjust the lever torque of the transport equipment.

[0011] Preferably, a guide groove is formed in the sliding hole, and a fan-shaped slot is formed on the bottom surface of the guide groove; a locking rod is fixedly connected to the top rod, the locking rod is slidably connected in the guide groove, and rotatably embedded in the slot; a rotating rod is vertically fixed to the end of the top rod; rotating the rotating rod counterclockwise causes the locking rod to rotate from the slot to the guide groove, and then pulling the top rod backward causes the locking teeth to disengage from the gear, leaving the gear in a free state. Then, the telescopic rod is pulled to adjust the torque, and then the top rod is pushed so that the locking rod is placed in the slot position. Rotating the rotating rod clockwise causes the top rod to rotate and rotate the locking rod into the slot. At this time, the locking plate is embedded between the two gears, the locking teeth mesh with the gears, and the rotation of the gears is fixed, thereby fixing the relative movement between the telescopic rod and the sleeve. At this time, the handle can be pushed stably to control the movement of the transport equipment.

[0012] Preferably, rubber protrusions are symmetrically fixed to the inner sidewall of the slot; by providing rubber protrusions in the slot, after the locking rod rotates into the slot, the locking rod is constrained in the slot by the rubber protrusions, thus restricting the rotation of the push rod, thereby ensuring the stability of the push rod, and consequently ensuring the meshing stability between the locking teeth and the gear.

[0013] Preferably, multiple semi-circular protrusions are fixed to the upper and lower surfaces of the telescopic rod, and the semi-circular protrusions are located close to both sides of the telescopic rod; there is a gap between the two sides of the rack and the two sides of the inner side of the sleeve, and the semi-circular protrusions are slidably connected in the gap; the gear is rotatably connected in the notch, and the top of the gear is higher than the upper and lower surfaces of the telescopic rod. At this time, the effective contact part between the telescopic rod and the sleeve is the meshing part of the gear and the rack. There is a gap between the telescopic rod and the inner side wall of the sleeve, and the telescopic rod will swing inside the sleeve. If a finger is accidentally inserted into the gap, the telescopic rod will squeeze the finger into the sleeve, which is dangerous. Therefore, the semi-circular protrusions are provided. The semi-circular protrusions are placed inside the sleeve, so that the telescopic rod is centered inside the sleeve, which restricts the size of the gap between the telescopic rod and the sleeve, thereby reducing the danger.

[0014] Preferably, the straight line where the apex of the locking tooth is located is inclined, and the inclination direction is set from the top rod to the locking plate; the height of the locking tooth apex is set so that when the locking plate is inserted between the two gears, the locking tooth can be gradually inserted between the gears, instead of being pushed to one side by the gear, which would prevent the locking tooth from effectively meshing with the gear.

[0015] Preferably, each wheel axle end is fixedly connected to the output end of a motor, the motor is fixedly connected to the frame, the frame is fixedly connected to a power source, the power source is electrically connected to a rotary switch on the handle, and the rotary switch is rotatably connected to the crossbar of the handle; each of the two gears is rotatably connected to a motor, the motor is electrically connected to the power source on the frame through a controller, and the rotary switch on the handle is electrically connected to a corresponding motor through the controller, and the working principle of the rotary switch on the handle is the same as that of the rotary switch on an electric vehicle. Rotating the rotary switch can control the movement of the transport equipment. Each motor is independently controlled, making it more convenient for the transport equipment to turn on the spot.

[0016] Preferably, a rubber plate is provided on the crossbar of the handle, and the edge of the push-pull plate is fixed to the crossbar of the handle through the rubber plate; the rubber plate is provided between the push-pull plate and the handle to prevent the gap between the push-pull plate and the handle from squeezing the palm or fingers, thus ensuring safety.

[0017] The advantages of this invention are:

[0018] 1. This invention realizes the function of gripping materials through the structural design of clamping blocks and push-pull rods. The conveying equipment has a simple structure, low manufacturing cost, and flexible use, and is suitable for working areas with limited space. At the same time, the cooperation between the base block and the clamping block makes the conveying equipment suitable for tubular or cylindrical materials.

[0019] 2. This invention achieves the function of clamping small materials through the structural design of clamping plates and adjusting bolts. Rotating the adjusting bolts pushes the lower ends of the clamping plates closer together. When the clamping blocks are close together, the lower ends of the clamping plates are squeezed together to wrap the material, thereby enabling the gripping of even smaller materials and improving the flexibility and adaptability of the transport equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the transportation equipment in Example 1;

[0022] Figure 2 This is a three-dimensional view of the base block in Example 1;

[0023] Figure 3 This is a cross-sectional view of the base block in Embodiment 1;

[0024] Figure 4This is an exploded view of the sleeve and telescopic rod in Example 1;

[0025] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0026] Figure 6 This is a cross-sectional view of the telescopic rod in Example 1;

[0027] Figure 7 This is a diagram showing the connection between the motor and the wheel in Example 2;

[0028] Figure 8 for Figure 7 A magnified view of a section at point B in the middle.

[0029] In the diagram: Frame 1, Support frame 2, Wheel 3, Hanging beam 4, Movable block 5, Electric push rod 6, Base block 7, Slider 8, Push-pull rod 9, Clamping block 10, Window 11, Handle 12, Notch 13, Clamping plate 14, Adjusting bolt 15, Spring 16, Cover plate 17, Sleeve 18, Telescopic rod 19, Rack 20, Notch 21, Gear 22, Clamping plate 23, Clamping tooth 24, Sliding layer 25, Sliding hole 26, Top rod 27, Handle 28, Push-pull plate 29, Guide groove 30, Clamping groove 31, Locking rod 32, Rotating rod 33, Rubber protrusion 34, Semi-circular protrusion 35, Motor 36, Rotary switch 37, Rubber plate 38. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] Reference Figure 1 , Figure 2 and Figure 3A gripping material transport device includes a rectangular frame 1. V-shaped support frames 2 are symmetrically fixed to the lower part of the frame 1. Wheels 3 are rotatably connected to each support frame 2. Multiple lifting beams 4 are fixed to the front side of the frame 1. A movable block 5 is rotatably connected to the end of each lifting beam 4. An electric push rod 6 is fixed to the lower end of the movable block 5. A U-shaped base block 7 is fixed to the end of the electric push rod 6. The piston rod of the electric push rod 6 extends into the base block 7 and is fixed to a slider 8. Push-pull rods 9 are symmetrically rotatably connected to both sides of the slider 8. Clamping blocks 10 are rotatably connected to the ends of the push-pull rods 9. The clamping blocks 10 are rotatably connected to windows 11 opened on the side wall of the base block 7. The clamping blocks 10 are symmetrically arranged within the windows 11. A handle 12 is fixed to the rear side of the frame 1. The electric push rods 6 are driven by a power source on the frame 1. During use, the transport device is pushed to the side of the material, causing the base block 7 to be placed on the material. The material is placed above the base block 7, and then the handle 12 is raised so that the base block 7 is close to the material. This conveying device is more suitable for cylindrical or tubular materials. The material is placed on the ground by a pad, and then the opening of the base block 7 is close to the material. After the material is placed between the clamping blocks 10, the electric push rod 6 is driven to push the slider 8 to move towards the material. At the same time, the clamping blocks 10 rotate, and the lower ends of the clamping blocks 10 come together to clamp the material. Then, the handle 12 is pressed down, and the conveying device is moved to transfer the material to the designated location. Furthermore, the operator can control the conveying device from the ground with a clear and wide field of vision, and can effectively detect debris in the movement path of the conveying device. The conveying device has a simple structure, low manufacturing cost, and flexible use, and is suitable for working areas with limited space. At the same time, the cooperation between the base block 7 and the clamping blocks 10 makes the conveying device suitable for tubular or cylindrical materials.

[0033] Reference Figure 2 and Figure 3 The two clamping blocks 10 have recesses 13 on their opposite sidewalls, and clamping plates 14 are rotatably connected within the recesses 13. An adjusting bolt 15 is rotatably connected to the back of each clamping block 10, and the end of the adjusting bolt 15 is threaded through the recess 13 and rests against the back of the clamping plate 14. This conveying device is suitable for pipes or cylindrical materials, but the diameter of the materials varies. At the same time, due to the design of the slider 8 and the push-pull rod 9, the vertical movement of the slider 8 is limited, resulting in a gap at the lower end of the clamping block 10. For small materials, they will slip out of the gap when gripping them. Therefore, clamping plates 14 are provided on the clamping blocks 10. By rotating the adjusting bolt 15, the adjusting bolt 15 pushes the lower ends of the clamping plates 14 together. When the clamping blocks 10 come together, the lower ends of the clamping plates 14 are squeezed together to wrap the material, thereby gripping even smaller materials and improving the flexibility and adaptability of the conveying device.

[0034] Reference Figure 3A spring 16 is fixedly connected to the lower end face of the slider 8, and a cover plate 17 is fixedly connected to the end of the spring 16. The cover plate 17 is C-shaped. When the conveying equipment is handling irregular materials, such as materials with a small diameter at one end and a large diameter at the other end, the vibration generated when the conveying equipment moves makes the material easily vibrate and detach from the clamping block 10, or multiple materials are gripped, causing them to shake and collide with each other, generating noise. For this reason, the cover plate 17 is set. The cover plate 17 cooperates with the spring 16. While the material is gripped in the clamping block 10, the cover plate 17 also presses on the material. The design of the shape of the cover plate 17 can wrap and squeeze the material, improving the stability of the material in the clamping block 10.

[0035] Reference Figure 1 , Figure 4 and Figure 6 The handle 12 includes a sleeve 18 and a telescopic rod 19; the sleeve 18 is fixedly connected to the frame 1, and a rack 20 is fixedly connected to the upper and lower surfaces inside the sleeve 18; one end of the telescopic rod 19 has a notch 21, and gears 22 are symmetrically rotatably connected inside the notch 21. The gears 22 mesh with the rack 20, and a retaining plate 23 is provided between the two gears 22. Multiple retaining teeth 24 are fixedly connected to both the upper and lower surfaces of the retaining plate 23, and the retaining teeth 24 engage with the teeth on the gears 22; A sliding layer 25 is formed within the notch 21, and a sliding hole 26 is formed at the bottom of the sliding layer 25, extending through to the other end of the telescopic rod 19; the clamping plate 23 is slidably connected within the sliding layer 25, and a top rod 27 is rotatably connected to the end of the clamping plate 23, extending outside the sliding hole 26; a handle 28 is fixedly connected to the other end of the telescopic rod 19, and an arc-shaped push-pull plate 29 is provided in the middle of the crossbar of the handle 28, with the push-pull plate 29 fixedly connected to the top rod 27; this transport device utilizes The lever principle is used to lift and grasp materials. Since the weight of materials varies, and the length of the handle 12 is fixed, it is difficult for the operator to press down the handle 12 when grasping heavier materials. Therefore, the handle 12 is designed to be telescopic, which increases the lever torque. Pulling the push-pull plate 29 backward causes the push rod 27 to move backward, and simultaneously the push rod 27 causes the locking plate 23 to disengage from the two gears 22. At this time, the two gears 22 are in a free state. Pulling the telescopic rod 19 outward or pushing it inward causes the rack 20 to rotate the gears 22, thereby changing the lever torque and easily lifting and transporting materials. The gears 22 and notch 21 are designed with damped rotation, allowing the telescopic rod 19 to move smoothly within the sleeve 18, facilitating the operator's adjustment of the lever torque of the transport equipment.

[0036] Reference Figure 4 and Figure 5A guide groove 30 is formed in the sliding hole 26, and a fan-shaped slot 31 is formed on the bottom surface of the guide groove 30. A locking rod 32 is fixedly connected to the top rod 27. The locking rod 32 is slidably connected in the guide groove 30 and rotatably embedded in the slot 31. A rotating rod 33 is vertically fixed to the end of the top rod 27. Rotating the rotating rod 33 counterclockwise causes the locking rod 32 to rotate from the slot 31 to the guide groove 30. Then, pulling the top rod 27 backward causes the locking tooth 24 to disengage from the gear 22, and the gear 22 to be in a free state. Then, pull the telescopic rod 19 to adjust the torque, and then push the top rod 27 so that the locking rod 32 is placed in the slot 31. Rotate the rotating rod 33 clockwise, and the top rod 27 rotates and rotates the locking rod 32 into the slot 31. At this time, the locking plate 23 is embedded between the two gears 22, and the locking teeth 24 mesh with the gears 22. The rotation of the gears 22 is fixed, so the relative movement between the telescopic rod 19 and the sleeve 18 is also fixed. At this time, the handle 12 can be pushed stably to control the movement of the transport equipment.

[0037] Reference Figure 5 Rubber protrusions 34 are symmetrically fixed to the inner wall of the slot 31. By setting the rubber protrusions 34 in the slot 31, after the locking rod 32 rotates into the slot 31, the locking rod 32 is constrained in the slot 31 by the rubber protrusions 34, which restricts the rotation of the push rod 27, thereby ensuring the stability of the push rod 27, and thus ensuring the meshing stability between the locking teeth 24 and the gear 22.

[0038] Reference Figure 4 and Figure 6 The telescopic rod 19 has multiple semi-circular protrusions 35 fixed to its upper and lower surfaces, which are located close to both sides of the telescopic rod 19. A gap is left between the two sides of the rack 20 and the two sides inside the sleeve 18, and the semi-circular protrusions 35 are slidably connected within this gap. The gear 22 is rotatably connected within the notch 21, with its top protruding above the upper and lower surfaces of the telescopic rod 19. The effective contact area between the telescopic rod 19 and the sleeve 18 is the meshing area between the gear 22 and the rack 20. A gap is left between the telescopic rod 19 and the inner wall of the sleeve 18, causing the telescopic rod 19 to swing within the sleeve 18. If a finger is accidentally inserted into this gap, the telescopic rod 19 will press the finger into the sleeve 18, posing a danger. Therefore, the semi-circular protrusions 35 are provided, pressing against the inside of the sleeve 18, thus centering the telescopic rod 19 within the sleeve 18 and constraining the size of the gap between the telescopic rod 19 and the sleeve 18, thereby reducing the risk.

[0039] Reference Figure 6The apex of the locking tooth 24 is inclined, and the inclination direction is set from the top rod 27 to the locking plate 23. The height of the apex of the locking tooth 24 is set so that the locking tooth 24 can gradually be embedded between the gears 22 during the process of the locking plate 23 being embedded between the two gears 22, instead of being pushed to one side by the gears 22, which would prevent the locking tooth 24 from effectively meshing with the gears 22.

[0040] Example 2:

[0041] Reference Figure 7 and Figure 8 Compared with Embodiment 1, as another embodiment of the present invention, each of the wheel 3 has an output end of a motor 36 fixedly connected to its axle end. The motor 36 is fixedly connected to the frame 1, and a power source is fixedly connected to the frame 1. The power source is electrically connected to a rotary switch 37 on the handle 28. The rotary switch 37 is rotatably connected to the crossbar of the handle 28. Each of the two gears 22 is rotatably connected to a drive motor. The drive motor is electrically connected to the power source on the frame 1 through a controller. At the same time, the rotary switch 37 on the handle 28 is electrically connected to a corresponding motor 36 through the controller. The working principle of the rotary switch 37 on the handle 28 is the same as that of the rotary switch 37 on an electric vehicle. Rotating the rotary switch 37 can control the movement of the transport equipment. Each motor 36 is independently controlled, making it more convenient for the transport equipment to turn on the spot.

[0042] A rubber plate 38 is provided on the crossbar of the handle 28, and the edge of the push-pull plate 29 is fixed to the crossbar of the handle 28 through the rubber plate 38; the rubber plate 38 is provided between the push-pull plate 29 and the handle 28 to prevent the gap between the push-pull plate 29 and the handle 28 from squeezing the palm or fingers, thus ensuring safety.

[0043] Working principle: The electric push rod 6 is driven by the power supply on the frame 1. When using this conveying equipment, push the conveying equipment to the side of the material so that the base block 7 is placed above the material. Then raise the handle so that the base block 7 is close to the material. This conveying equipment is more suitable for cylindrical or tubular materials. The material is placed on the ground by the pad. Then the opening of the base block 7 is close to the material. After the material is placed between the clamping blocks 10, drive the electric push rod 6 to push the slider 8 to move towards the material. At the same time, the clamping blocks 10 rotate and the lower ends of the clamping blocks 10 come together to clamp the material. Then press down the handle 12 and push the conveying equipment to move and transfer the material to the designated location. This conveying equipment has a simple structure, low manufacturing cost, and flexible use. It is suitable for working areas with limited space. At the same time, the cooperation between the base block 7 and the clamping blocks 10 makes this conveying equipment suitable for tubular or cylindrical materials.

[0044] This transport equipment is suitable for pipe-shaped or cylindrical materials, but the diameter of the materials varies. At the same time, due to the design of the slider 8 and the push-pull rod 9, the vertical movement of the slider 8 is limited, resulting in a gap at the lower end of the clamping block 10. For small materials, they will slip out of the gap when the material is grabbed. To address this, a clamping plate 14 is installed on the clamping block 10. By rotating the adjusting bolt 15, the adjusting bolt 15 pushes the lower ends of the clamping plate 14 together. When the clamping blocks 10 come together, the lower ends of the clamping plates 14 are squeezed together to wrap the material, thereby enabling the gripping of even smaller materials and improving the flexibility and adaptability of the transport equipment.

[0045] When the transport equipment is handling irregular materials, such as materials with a small diameter at one end and a large diameter at the other end, the vibration generated during the movement of the transport equipment makes it easy for the materials to vibrate and detach from the clamping block 10, or for multiple materials to be gripped, causing them to shake and collide with each other, generating noise. To address this, a cover plate 17 is provided. The cover plate 17 works in conjunction with the spring 16. While the materials are gripped in the clamping block 10, the cover plate 17 also presses against the materials. The design of the cover plate 17's shape can wrap and compress the materials, improving the stability of the materials within the clamping block 10.

[0046] This transport equipment utilizes the lever principle to grab and lift materials. Since the weight of the materials varies, and the length of the handle 12 is fixed, it is difficult for the operator to press down the handle 12 when grabbing heavier materials. Therefore, the handle 12 is designed to be telescopic, which increases the lever torque. Pulling the push-pull plate 29 backward causes the push rod 27 to move backward, and simultaneously the push rod 27 causes the locking plate 23 to disengage from the two gears 22. At this time, the two gears 22 are in a free state. Pulling the telescopic rod 19 moves it outward from the sleeve 18, or pushing it inward from the sleeve 18. The rack 20 rotates the gears 22, thereby changing the lever torque and easily lifting and transporting materials. The gears 22 and the notch 21 are designed with damped rotation, allowing the telescopic rod 19 to move smoothly within the sleeve 18, facilitating the operator's adjustment of the lever torque of the transport equipment.

[0047] Rotate the lever 33 counterclockwise to move the locking lever 32 from the slot 31 to the guide slot 30. Then pull the push rod 27 backward to disengage the locking tooth 24 from the gear 22, leaving the gear 22 in a free state. Then pull the telescopic rod 19 to adjust the torque. Then push the push rod 27 to position the locking lever 32 in the slot 31. Rotate the lever 33 clockwise to rotate the push rod 27 and rotate the locking lever 32 into the slot 31. At this time, the locking plate 23 is embedded between the two gears 22, and the locking tooth 24 meshes with the gear 22. The rotation of the gear 22 is fixed, and the relative movement between the telescopic rod 19 and the sleeve 18 is also fixed. At this time, the handle 12 can be pushed stably to control the movement of the transport equipment.

[0048] By providing a rubber protrusion 34 in the slot 31, after the locking rod 32 rotates into the slot 31, the locking rod 32 is constrained in the slot 31 by the rubber protrusion 34, which restricts the rotation of the push rod 27, thereby ensuring the stability of the push rod 27, and thus ensuring the meshing stability between the locking tooth 24 and the gear 22.

[0049] Gear 22 is rotatably connected within notch 21. The top of gear 22 protrudes above the upper and lower surfaces of telescopic rod 19. At this time, the effective contact area between telescopic rod 19 and sleeve 18 is the meshing part of gear 22 and rack 20. A gap is left between telescopic rod 19 and the inner wall of sleeve 18. Telescopic rod 19 will swing within sleeve 18. If a finger is accidentally inserted into the gap, telescopic rod 19 will squeeze the finger into sleeve 18, which is dangerous. For this reason, a semi-circular protrusion 35 is provided. The semi-circular protrusion 35 presses against the inside of sleeve 18, so that telescopic rod 19 is centered within sleeve 18, constraining the size of the gap between telescopic rod 19 and sleeve 18, thereby reducing the danger. The height of the apex of the locking tooth 24 is set so that during the process of locking plate 23 being inserted between two gears 22, the locking tooth 24 can gradually be inserted between the gears 22, instead of being pushed to one side by the gears 22, which would prevent the locking tooth 24 from effectively meshing with the gears 22.

[0050] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A grab-type material handling apparatus, characterized by: It includes the frame body (1) of rectangular shape, the V-shaped support frame (2) is fixedly connected to the lower symmetry of frame body (1), each support frame (2) is rotatably connected with the wheel (3), the front side of frame body (1) is fixedly connected with multiple hanging beams (4), the end of each hanging beam (4) is rotatably connected with the movable block (5), the lower end surface of movable block (5) is fixedly connected with the electric push rod (6), the end of electric push rod (6) is fixedly connected with the base block (7) of U shape, the piston rod of electric push rod (6) is inserted into the base block (7), and is fixedly connected with the sliding block (8), the two sides of sliding block (8) are rotatably connected with the push-pull rod (9), the end of push-pull rod (9) is rotatably connected with the clamping block (10), the clamping block (10) is rotatably connected in the window (11) of the side wall of base block (7), and the clamping block (10) is symmetrically arranged in the window (11), the rear side of frame body (1) is fixedly connected with the handle (12). The opposite side walls of two clamping blocks (10) are provided with notches (13), and the notches (13) are rotatably connected with clamping plates (14); the back surface of each clamping block (10) is rotatably connected with an adjusting bolt (15), and the end of the adjusting bolt (15) is screwed into the notch (13) and is abutted on the back surface of the clamping plate (14). The lower end surface of sliding block (8) is fixedly connected with spring (16), the end of spring (16) is fixedly connected with cover plate (17), and cover plate (17) is "C" shaped. The handle (12) includes a sleeve (18) and a telescopic rod (19); the sleeve (18) is fixedly connected to the frame body (1), and the inner upper and lower surfaces of the sleeve (18) are fixedly connected with a rack (20); one end of the telescopic rod (19) is provided with a notch (21), and the notch (21) is rotatably connected with a gear (22) symmetrically on the upper and lower surfaces, the gear (22) is engaged with the rack (20), a clamping plate (23) is arranged between the two gears (22), a plurality of clamping teeth (24) are fixedly connected to the upper and lower surfaces of the clamping plate (23), and the clamping teeth (24) are matched with the teeth on the gear (22); a sliding layer (25) is arranged in the notch (21), a sliding hole (26) is arranged in the bottom of the sliding layer (25), and the sliding hole (26) penetrates to the other end of the telescopic rod (19); the clamping plate (23) is slidably connected in the sliding layer (25), and the end of the clamping plate (23) is rotatably connected with a jacking rod (27), and the jacking rod (27) extends out of the sliding hole (26); the other end of the telescopic rod (19) is fixedly connected with a handle (28), an arc-shaped push-pull plate (29) is arranged at the middle position of the crossbar of the handle (28), and the push-pull plate (29) is fixedly connected with the jacking rod (27). A guide groove (30) is arranged in the sliding hole (26), and a fan-shaped clamping groove (31) is arranged in the bottom surface of the guide groove (30); a locking rod (32) is fixedly connected to the jacking rod (27), the locking rod (32) is slidably connected in the guide groove (30), and is rotatably embedded in the clamping groove (31); a rotating rod (33) is perpendicularly fixedly connected to the end of the jacking rod (27).

2. A grab-type material handling apparatus according to claim 1, wherein: The rubber convex parts (34) are symmetrically fixedly connected to the inner side walls of the clamping groove (31).

3. A grab-type material handling apparatus according to claim 1, wherein: The upper and lower surfaces of the telescopic rod (19) are fixed with a plurality of semicircular protrusions (35) which are arranged close to the two sides of the telescopic rod (19); the two sides of the rack (20) and the two sides inside the sleeve (18) are left with gaps, and the semicircular protrusions (35) are slidingly connected in the gaps.

4. The grab-type material handling apparatus of claim 1, wherein: The straight line where the top of the clamping tooth (24) is located is inclined, and the inclined direction is arranged from the top rod (27) to the clamping plate (23).

5. The grab-type material handling apparatus of claim 1, wherein: The output end of the motor (36) is fixed to the end of the rotating shaft of each wheel (3), the motor (36) is fixed to the frame (1), the frame (1) is fixed with a power supply, the power supply is electrically connected with the rotating switch (37) on the handle (28), and the rotating switch (37) is rotatably connected to the cross rod of the handle (28).

6. A grab-type material handling apparatus according to claim 5, wherein: The cross rod of the handle (28) is provided with a rubber plate (38), and the edge of the push-pull plate (29) is fixed to the cross rod of the handle (28) through the rubber plate (38).

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