Oil drum carrier cart

Abstract

The utility model provides a kind of oil drum carrying trolley, belong to oil drum carrying tool technical field, including U-shaped chassis, the both sides of U-shaped chassis are provided with support vertical arm respectively, the bottom of U-shaped chassis is provided with wheel;The top of support vertical arm is rotatably connected with crane handle, one end of crane handle is connected with overhanging arm, the bottom of overhanging arm is connected with oil drum fixing device;Oil drum fixing device includes semicircular fixed plate, the both sides of semicircular fixed plate are fixedly connected with the bottom of overhanging arm respectively, and the both ends of semicircular fixed plate opening are rotatably connected with movable arc-shaped clamping plate by spring hinge respectively, and movable arc-shaped clamping plate is connected with brake handle by brake line.The utility model is convenient and labor-saving to operate, adapts to a variety of oil drums and scene, and has multiple safety protection, can efficiently meet the oil drum carrying demand of bridge crane and other equipment maintenance, reduce labor intensity and accident risk.

Description

Technical Field

[0001] This utility model relates to the technical field of oil drum handling tools, and in particular to an oil drum handling trolley. Background Technology

[0002] In the fields of industrial production and special equipment maintenance, oil drum handling is a high-frequency and critical operation. Especially in the maintenance of large lifting equipment such as bridge cranes and tire cranes, it is necessary to regularly lubricate and maintain components such as gearboxes and transmission mechanisms. This process involves various specifications and types of lubricating oil drums, such as gear oil drums and hydraulic oil drums. These oil drums are large in volume and mostly cylindrical in structure. The surface of the drum is smooth and lacks effective stress points, which brings great challenges to handling and sorting operations.

[0003] In the prior art, Chinese Patent No. CN203805948U discloses a handcart, including a base and a handle. The handcart also includes two handling levers and an oil drum fixing device. The two handling levers are arranged in parallel, with both ends of the handle connected to one end of each handling lever, and the other end of each handling lever rotatably connected to the oil drum fixing device. This handcart, by designing the connection point between the handling levers and the oil drum fixing device to be close to or higher than the center of gravity of the oil drum, prevents the oil drum from tilting and allows for lifting of the oil drum without relying on manual labor or lifting equipment. This solves, to some extent, the problem of laborious traditional manual handling and improves reliability compared to traditional handcarts.

[0004] While the aforementioned existing technologies have addressed the issue of laborious traditional manual handling to some extent, they still have the following shortcomings in practical use: First, in the oil drum fixing device of this handcart, the movable arc plate is simply rotated and connected to the semi-circular connecting plate without an automatic clamping mechanism. After closing, it relies solely on the arc plate's own contact for fixation, lacking continuous clamping force, making the oil drum prone to loosening under bumps. Furthermore, the inner wall of the movable arc plate lacks any cushioning or protective structure, and the metal edge of the arc plate easily scratches the anti-corrosion coating on the outer surface of the oil drum during handling, resulting in poor stability and surface protection of the oil drum. Second, the handcart lacks any limiting structure for fixing the position of the handling lever. After lifting the oil drum using the handling lever, the operator needs to continuously press the handle to prevent the oil drum from falling back to the ground. If long-distance handling is required, the operator's labor consumption is high, and their arms are prone to soreness, failing to achieve labor-saving operation. Third, the support pole of the handcart is an integrated fixed height design, which cannot adjust the overall height according to the height of the oil drum, the height of the operator, or the slope of the working ground. The handcart's support structure has poor adaptability, which can easily lead to insufficient stability after the oil drum is lifted in some scenarios, or require the operator to bend over / stand on tiptoe to exert force, increasing the difficulty of operation. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of existing trolleys, such as cumbersome operation, high manpower consumption, and poor adaptability, and to provide an oil drum transport trolley.

[0006] This utility model is achieved through the following technical solution: an oil drum transport trolley includes a U-shaped chassis, with supporting arms on both sides of the U-shaped chassis and wheels on the bottom of the U-shaped chassis; a lifting handle is rotatably connected to the top of each of the two supporting arms, and a suspension arm is connected to the end of the lifting handle near the opening of the U-shaped chassis; the top of the suspension arm is rotatably connected to the end of the lifting handle, and an oil drum fixing device is connected to the bottom of both suspension arms; the oil drum fixing device includes a semi-circular fixing plate, with both sides of the semi-circular fixing plate fixedly connected to the bottom of the suspension arm; the opening of the semi-circular fixing plate corresponds to the opening of the U-shaped chassis, and movable arc-shaped clamps are rotatably connected to the two ends of the opening of the semi-circular fixing plate via spring hinges; a brake handle is connected to the two movable arc-shaped clamps via a brake cable; the brake handle is located at the end of one of the lifting handles away from the opening of the U-shaped chassis, and the two movable arc-shaped clamps can be opened by the brake handle and the brake cable.

[0007] In use, first pull the brake handle away from the oil drum. The brake handle causes the brake cable to be stressed, which in turn pulls the two movable arc-shaped clamps to rotate outwards synchronously against the elasticity of the spring hinges, widening the opening of the oil drum fixing device. Align the oil drum to be transported with the opening of the semi-circular fixing plate and push it in until the oil drum is against the inner wall of the semi-circular fixing plate. Release the brake handle, and the spring hinges will return to their original position under their own elasticity, causing the two movable arc-shaped clamps to rotate inwards, automatically clamping the outer wall of the oil drum, thus fixing the oil drum. Then, press down the end of the crane handle away from the opening of the U-shaped chassis towards the ground. Using the rotating connection point at the top of the support arm as the fulcrum, the force is transmitted to the suspension arm through the crane handle 4. The suspension arm drives the oil drum fixing device and the oil drum to rise synchronously until the bottom of the oil drum is off the ground. Push the crane handle, and the oil drum can be moved and transported by the wheels at the bottom of the U-shaped chassis.

[0008] A further improvement of this utility model is that the brake line includes a main brake line, one end of which is connected to the brake handle, and the other end of which is connected to two branch brake lines, which are respectively connected to the outer wall of the movable arc-shaped clamp.

[0009] A further improvement of this utility model is that a bracket is provided at the closed end of the semi-circular fixing plate, a guide tube is provided on the bracket, and a limit tube is provided on the outer wall of the movable arc-shaped clamp, and the main gate line is located inside the guide tube, and the branch gate line is located inside the limit tube.

[0010] A further improvement of this utility model is that a limiting telescopic rod is provided between the side of the supporting arm away from the U-shaped chassis opening and the bottom of the crane handle. One end of the limiting telescopic rod is rotatably connected to the supporting arm, and the other end of the limiting telescopic rod is rotatably connected to a sliding sleeve. The sliding sleeve is slidably fitted onto the crane handle, and a positioning bolt is screwed to the top of the sliding sleeve.

[0011] A further improvement of this utility model is that the limiting telescopic rod is a telescopic structure of a sleeve, and a limiting bolt is screwed onto the outer tube of the limiting telescopic rod.

[0012] A further improvement of this utility model is that a handrail is provided between the ends of the two crane handles that are away from the opening of the U-shaped chassis, and the two ends of the handrail are respectively fixedly connected to the ends of the two crane handles.

[0013] A further improvement of this utility model is that a rubber layer is provided on the inner wall of the semi-circular fixing plate and the movable arc-shaped clamping plate respectively.

[0014] A further improvement of this utility model is that the supporting arm includes an inner rod and an outer tube, the inner rod is slidably inserted into the outer tube, and the inner rod is fixed in position by a pin.

[0015] A further improvement of this utility model is that the top of the suspension arm is rotatably connected to the crane handle via bolt A and bolt hole A, and the bottom of the suspension arm is connected to the connecting frame fixed on the semi-circular fixing plate via bolt B and bolt hole B.

[0016] A further improvement of this utility model is that the wheel is a self-locking roller.

[0017] As can be seen from the above technical solutions, the beneficial effects of this utility model are: 1. This trolley uses a spring hinge to automatically clamp the oil drum with a movable arc-shaped clamp. Combined with the linkage control of the brake handle and brake cable, there is no need for manual positioning and fixing structure, making the loading and unloading of oil drums more efficient. The limit telescopic rod can lock the lifting position of the crane handle to avoid continuous force. Combined with the lever optimization design, lifting oil drums and long-distance transportation are more labor-saving, significantly reducing the labor intensity in the maintenance of bridge cranes and tire cranes, and adapting to high-frequency transportation needs.

[0018] 2. This trolley can be adjusted according to the height of the person and the slope of the ground by extending and retracting the support arm; at the same time, the rubber layer can protect the coating of the oil drum and increase the fixed friction, which can meet the needs of various oil categories and handling, eliminating the need for multiple dedicated trolleys and greatly reducing equipment costs.

[0019] 3. The self-locking rollers of this trolley provide more reliable braking on complex terrain and prevent the trolley from slipping; the oil drum fixing device automatically clamps and provides potential secondary protection to prevent the oil drum from loosening; the guide tube and limit tube ensure stable operation of the brake line and keep the center of gravity of the oil drum stable, which is superior to the safety level of existing technologies and reduces the difficulty of operation and the risk of equipment damage in maintenance scenarios. Attached Figure Description

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

[0021] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of the structure of the oil drum fixing device according to a specific embodiment of the present utility model.

[0023] Figure 3 This is a schematic diagram of the oil drum fixing device in the open state according to a specific embodiment of this utility model.

[0024] Figure 4 This is a schematic diagram of the structure of the cantilever arm according to a specific embodiment of the present invention.

[0025] Figure 5 This is a structural schematic diagram of the supporting arm and the limiting telescopic rod in a specific embodiment of this utility model.

[0026] Figure 6 This is a schematic diagram of an oil drum fixing device fixing an oil drum according to a specific embodiment of this utility model.

[0027] In the diagram: 1. U-shaped chassis; 2. Support arm; 201. Inner rod; 202. Outer tube; 203. Pin; 3. Wheel; 4. Crane handle; 5. Suspension arm; 501. Bolt A; 502. Bolt hole A; 503. Bolt B; 504. Bolt hole B; 505. Connecting frame; 6. Oil drum fixing device; 601. Semi-circular fixing plate; 602. Spring hinge; 603. Movable arc-shaped clamp; 604. Rubber layer; 7. Brake handle; 8. Main brake line; 801. Branch brake line; 9. Limiting telescopic rod; 901. Limiting bolt; 10. Sliding sleeve; 1001. Positioning bolt; 11. Brake; 1101. Guide tube; 1102. Limiting tube; 12. Handrail; 13. Oil drum. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] Now refer to Figures 1-6 The following is a description of a specific embodiment: The oil drum transport trolley of this utility model includes a U-shaped chassis 1. Supporting arms 2 are respectively provided on both sides of the U-shaped chassis 1, and wheels 3 are provided at the bottom of the U-shaped chassis 1. Lifting handles 4 are rotatably connected to the tops of the two supporting arms 2. A suspension arm 5 is connected to one end of the lifting handle 4 near the opening of the U-shaped chassis 1. The top of the suspension arm 5 is rotatably connected to the end of the lifting handle 4, and the bottoms of the two suspension arms 5 are jointly connected to an oil drum fixing device 6. The oil drum fixing device 6 includes a semi-circular... A semi-circular fixing plate 601 is fixedly connected to the bottom of the suspension arm 5 on both sides. The opening of the semi-circular fixing plate 601 corresponds to the opening of the U-shaped chassis 1. The two ends of the opening of the semi-circular fixing plate 601 are rotatably connected to movable arc-shaped clamping plates 603 through spring hinges 602. The two movable arc-shaped clamping plates 603 are connected to a brake handle 7 through a brake cable. The brake handle 7 is located at one end of one of the crane handles 4 away from the opening of the U-shaped chassis 1. The two movable arc-shaped clamping plates 603 can be opened through the brake handle 7 and the brake cable.

[0030] In use, first pull the brake handle 7 away from the oil drum 13. The brake handle 7 causes the brake cable to be stressed, which in turn pulls the two movable arc-shaped clamps 603 to rotate outward synchronously against the elastic force of the spring hinge 602, thus widening the opening of the oil drum fixing device 6. Align the oil drum 13 to be transported with the opening of the semi-circular fixing plate 601 and push it in until the oil drum 13 is against the inner wall of the semi-circular fixing plate 601. Release the brake handle 7, and the spring hinge 602 returns to its original position under its own elastic force, causing the two movable arc-shaped clamps 603 to rotate outward synchronously against the spring hinge 602. The clamping plate 603 rotates inward to automatically clamp the outer wall of the oil drum 13, thus fixing the oil drum. Then, the end of the crane handle 4 away from the opening of the U-shaped chassis 1 is pressed down towards the ground. Using the rotating connection point at the top of the supporting arm 2 as the lever fulcrum, the force is transmitted to the suspension arm 5 through the crane handle 4. The suspension arm 5 drives the oil drum fixing device 6 and the oil drum 13 to lift synchronously until the bottom of the oil drum 13 is off the ground. Pushing the crane handle 4 allows the oil drum to be moved and transported via the wheels 3 at the bottom of the U-shaped chassis 1.

[0031] Compared to existing technologies where the movable arc plate is simply rotated for connection, lacks an automatic clamping structure, and requires manual adjustment for fixation, this trolley uses a spring hinge 602 to enable the movable arc plate 603 to automatically clamp the oil drum. Combined with the convenient control of the brake handle 7 and the brake cable, there is no need to manually adjust the position of the clamping plate, thus improving operational efficiency. At the same time, the lever cooperation between the lifting handle 4 and the suspension arm 5 makes lifting the oil drum easier, and the rigid connection between the oil drum fixing device 6 and the suspension arm 5 avoids the problem of the oil drum fixing device 6 being easy to loosen, thus improving the stability of the oil drum fixation.

[0032] For details, please refer to Figure 2 and Figure 3 The brake line includes a main brake line 8, one end of which is connected to the brake handle 7, and the other end of which is connected to two branch brake lines 801. The two branch brake lines 801 are respectively connected to the outer wall of the movable arc-shaped clamp 603.

[0033] When the brake handle 7 is operated, the rotation of the brake handle 7 is converted into an axial pulling force on the main brake line 8. The main brake line 8 transmits the pulling force to the two branch brake lines 801 at its end. Since the two branch brake lines 801 are respectively connected to the outer walls of the two movable arc-shaped clamps 603, the branch brake lines 801 pull the corresponding movable arc-shaped clamps 603 synchronously after being subjected to force, so that the two movable arc-shaped clamps 603 rotate outward synchronously with the spring hinge 602 as the axis, thereby opening the opening and closing port of the oil drum fixing device 6. When the brake handle 7 is released, the main brake line 8 and the branch brake lines 801 lose the pulling force. The elastic force of the spring hinge 602 drives the movable arc-shaped clamps 603 to reset. The branch brake lines 801 retract synchronously with the clamps as they reset, and the main brake line 8 also returns to its initial state.

[0034] Compared to existing technologies where manually adjusting the movable arc plate can easily lead to problems such as one-sided opening and closing and asymmetrical operation, this trolley uses a linkage design between the main brake line 8 and the branch brake line 801 to ensure that the two movable arc plates 603 open and close synchronously, avoiding the situation where the oil drum shifts or is clamped unevenly due to one-sided operation. At the same time, the force transmission path of the brake line is clear, and compared with the manual adjustment method, the operation is less strenuous and the action is more continuous, greatly improving the convenience of loading and unloading oil drums.

[0035] Specifically, refer to Figures 1-3 The closed end of the semi-circular fixing plate 601 is provided with a bracket 11, the bracket 11 is provided with a guide tube 1101, and the outer wall of the movable arc-shaped clamp 603 is provided with a limit tube 1102. The main gate line 8 is located inside the guide tube 1101, and the branch gate line 801 is located inside the limit tube 1102.

[0036] When the brake handle 7 drives the brake cable to move, the main brake cable 8 moves inside the guide tube 1101 on the bracket 11. The guide tube 1101 restricts the radial offset of the main brake cable 8, ensuring that the main brake cable 8 transmits tension only along the preset path. At the same time, the branch brake cable 801 moves inside the limiting tube 1102 on the outer wall of the movable arc-shaped clamp 603. The limiting tube 1102 constrains the direction of movement of the branch brake cable 801, preventing the branch brake cable 801 from getting tangled or falling out of the preset position as the movable arc-shaped clamp 603 rotates. During the handling of the oil drum, the guide tube 1101 and the limiting tube 1102 can also protect the brake cable from external collisions and friction.

[0037] This trolley effectively prevents the brake cable from getting tangled, deviating, or worn during use by using the guide tube 1101 and the limiting tube 1102, ensuring the long-term stable operation of the brake cable and reducing the failure rate. At the same time, the clear force transmission path further improves the synchronicity and reliability of the opening and closing of the movable arc-shaped clamp 603. Compared with the simple fixed structure in the prior art, the equipment has a longer service life and lower maintenance costs.

[0038] For details, please refer to Figure 1 and Figure 5 A limiting telescopic rod 9 is provided between the side of the supporting arm 2 away from the opening of the U-shaped chassis 1 and the bottom of the crane handle 4. One end of the limiting telescopic rod 9 is rotatably connected to the supporting arm 2, and the other end of the limiting telescopic rod 9 is rotatably connected to a sliding sleeve 10. The sliding sleeve 10 is slidably sleeved on the crane handle 4, and a positioning bolt 1001 is screwed to the top of the sliding sleeve 10.

[0039] When the oil drum is lifted by the crane handle 4 until its bottom is off the ground, the sliding sleeve 10 slides along the crane handle 4, causing the limiting telescopic rod 9 to extend and retract, adjusting it to a position with a suitable support angle with the crane handle 4. Then, the positioning bolt 1001 at the top of the sliding sleeve 10 is tightened, and the positioning bolt 1001 abuts against the outer wall of the crane handle 4, fixing the position of the sliding sleeve 10. At this time, the two ends of the limiting telescopic rod 9 form a rigid support structure with the supporting arm 2 and the crane handle 4 respectively, restricting the rotation of the crane handle 4 around the top of the supporting arm 2, and preventing the crane handle 4 from falling back and the bottom of the oil drum from contacting the ground due to gravity during transportation. When it is necessary to lower the oil drum, the positioning bolt 1001 is loosened, the sliding sleeve 10 releases the support of the limiting telescopic rod 9, and the crane handle 4 is slowly lowered.

[0040] In existing technologies, operators need to continuously press the handle to prevent the oil drum from falling back, which can easily lead to arm pain. This trolley, through the cooperation of the limiting telescopic rod 9, the sliding sleeve 10, and the positioning bolt 1001, can fix the lifting position of the lifting handle 4 without continuous force, greatly saving manpower, and is especially suitable for long-distance transportation scenarios. At the same time, compared with the unlimited design in existing technologies, the rigid support structure has stronger stability after the oil drum is lifted, avoiding the problem of the oil drum accidentally falling back and dragging on the ground due to operator fatigue, thus improving transportation safety.

[0041] For details, please refer to Figure 1 and Figure 6 A handrail 12 is provided between the ends of the two crane handles 4 away from the opening of the U-shaped chassis 1, and the two ends of the handrail 12 are fixedly connected to the ends of the two crane handles 4 respectively.

[0042] When the operator pushes the trolley, they can hold the handlebars 12 with both hands and apply force simultaneously to the two lifting handles 4 through the handlebars 12 to control the direction and speed of the trolley and avoid the trolley from deviating due to unilateral force application. When lifting the oil drum, the operator can press down on the handlebars 12 with both hands, and the handlebars 12 will evenly transmit the force to the two lifting handles 4, so that the two lifting handles 4 rotate synchronously around the top of the support arm 2, and drive the oil drum fixing device 6 to lift the oil drum smoothly through the suspension arm 5. When turning in narrow areas, holding the handlebars 12 can more accurately control the turning angle of the trolley and improve the flexibility of operation.

[0043] Specifically, refer to Figure 4 The supporting arm 2 includes an inner rod 201 and an outer tube 202. The inner rod 201 is slidably inserted into the outer tube 202, and the inner rod 201 is fixed in position by a pin 203.

[0044] Based on the operator's height, ensure the operator is comfortable applying force or the slope of the working ground, pull out the pin 203 on the support arm 2, pull the inner rod 201 to slide axially relative to the outer tube 202, and adjust the overall height of the support arm 2; when the height is adjusted to a suitable position, i.e., the operator can apply force without bending over / standing on tiptoe, or the cart is kept level, insert the pin 203 into the corresponding holes of the inner rod 201 and the outer tube 202 to fix the relative position of the inner rod 201 and the outer tube 202, so that the support arm 2 maintains the preset height and provides stable support for the crane handle 4.

[0045] This trolley requires the inner rod 201, outer tube 202 and pin 203 to work together to flexibly adjust the height of the support arm 2, making it more comfortable for operators to exert force and reducing labor fatigue; at the same time, the height adjustment capability to adapt to inclined ground can prevent the center of gravity of the oil drum from shifting due to the trolley tilting, making it more adaptable to the environment and safer to operate.

[0046] Specifically, the wheel 3 is a self-locking roller.

[0047] When pushing the trolley to transport oil drums, the self-locking mechanism of the self-locking rollers is unlocked, allowing the rollers to roll freely and enabling the trolley to move flexibly. When the trolley reaches the target position, the self-locking mechanism of the rollers is triggered, such as the brake pads contacting and locking the rollers, restricting the rotation of the rollers and preventing the trolley from accidentally sliding on the ground. When it is necessary to move again, the self-locking mechanism can be released to continue pushing the trolley.

[0048] In one embodiment, reference Figure 5 The limiting telescopic rod 9 is a telescopic structure of a tube sleeve, and a limiting bolt 901 is screwed onto the outer tube of the limiting telescopic rod 9.

[0049] Depending on the height of the oil drum or the required lifting height, loosen the limiting bolt 901 on the outer tube of the limiting telescopic rod 9, pull the inner tube to extend and retract axially relative to the outer tube, and adjust the overall length of the limiting telescopic rod 9; when the length is adjusted to match the current lifting height of the oil drum, ensuring that the limiting telescopic rod 9 can effectively support the crane handle 4, tighten the limiting bolt 901, the limiting bolt 901 abuts against the outer wall of the inner tube, fixes the relative position of the inner tube and the outer tube, so that the limiting telescopic rod 9 maintains the preset length, and further provides stable support for the crane handle 4.

[0050] In one embodiment, reference Figure 2 and Figure 3 A rubber layer 604 is provided on the inner wall of the semi-circular fixing plate 601 and the movable arc-shaped clamping plate 603 respectively.

[0051] When the oil drum is placed into the oil drum fixing device 6, the rubber layer 604 on the inner wall of the semi-circular fixing plate 601 and the movable arc-shaped clamping plate 603 directly contacts the outer wall of the oil drum. The rubber layer 604 is elastic and can undergo slight deformation under the clamping force of the spring hinge 602, conforming to the curvature of the outer wall of the oil drum and increasing the contact area with the oil drum. At the same time, the coefficient of friction of the rubber layer 604 is greater than that of metal, which can enhance the friction between the oil drum and the fixing device. Moreover, the rubber material is soft and can buffer the collision force between the oil drum and the metal plate.

[0052] The 604 rubber layer of this trolley prevents the metal plate from directly contacting the oil drum, effectively protecting the anti-corrosion coating on the outer surface of the oil drum and preventing rust. At the same time, the increased friction can further improve the stability of the oil drum, preventing it from sliding due to transportation bumps, and improving the protection and reliability of the oil drum.

[0053] In one embodiment, reference Figure 5The top of the suspension arm 5 is rotatably connected to the crane handle 4 via bolt A501 and bolt hole A502, and the bottom of the suspension arm 5 is connected to the connecting frame 505 fixed on the semi-circular fixing plate 601 via bolt B503 and bolt hole B504.

[0054] If the oil drum fixing device 6 needs to be replaced or repaired, loosen bolt B503 to separate the suspension arm 5 from the connecting bracket 505 on the semi-circular fixing plate 601, thus achieving the disassembly and assembly of the oil drum fixing device 6; during installation, align the bolt hole B504 and tighten bolt B503 to fix it; similarly, if the suspension arm 5 needs to be replaced or repaired, follow the above steps to disassemble bolt A501 or align the bolt hole A502 and tighten bolt A501.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drum handling trolley, comprising a U-shaped chassis (1), wherein support arms (2) are respectively provided on both sides of the U-shaped chassis (1), and wheels (3) are provided on the bottom of the U-shaped chassis (1), characterized in that, The tops of the two supporting booms (2) are rotatably connected to crane handles (4), and the end of the crane handle (4) near the opening of the U-shaped chassis (1) is connected to a suspension arm (5). The top of the suspension arm (5) is rotatably connected to the end of the crane handle (4), and the bottoms of the two suspension arms (5) are connected to an oil drum fixing device (6). The oil drum fixing device (6) includes a semi-circular fixing plate (601), and the two sides of the semi-circular fixing plate (601) are fixedly connected to the bottoms of the suspension arms (5). The opening of the semi-circular fixing plate (601) corresponds to the opening of the U-shaped chassis (1), and the two ends of the opening of the semi-circular fixing plate (601) are respectively rotatably connected to movable arc-shaped clamps (603) through spring hinges (602). The two movable arc-shaped clamps (603) are connected to a brake handle (7) through a brake cable. The brake handle (7) is located at one end of one of the crane handles (4) away from the opening of the U-shaped chassis (1). The two movable arc-shaped clamps (603) can be opened through the brake handle (7) and the brake cable.

2. The oil drum handling trolley according to claim 1, characterized in that, The brake line includes a main brake line (8), one end of which is connected to the brake handle (7), and the other end of which is connected to two branch brake lines (801). The two branch brake lines (801) are respectively connected to the outer wall of the movable arc-shaped clamp (603).

3. The oil drum handling trolley according to claim 2, characterized in that, The closed end of the semi-circular fixing plate (601) is provided with a bracket (11), the bracket (11) is provided with a guide tube (1101), and the outer wall of the movable arc-shaped clamp (603) is provided with a limit tube (1102). The main gate line (8) is located inside the guide tube (1101), and the branch gate line (801) is located inside the limit tube (1102).

4. The oil drum handling trolley according to claim 1, characterized in that, A limiting telescopic rod (9) is provided between the side of the supporting arm (2) away from the opening of the U-shaped chassis (1) and the bottom of the crane handle (4). One end of the limiting telescopic rod (9) is rotatably connected to the supporting arm (2), and the other end of the limiting telescopic rod (9) is rotatably connected to a sliding sleeve (10). The sliding sleeve (10) is slidably mounted on the crane handle (4), and a positioning bolt (1001) is screwed to the top of the sliding sleeve (10).

5. The oil drum handling trolley according to claim 4, characterized in that, The limiting telescopic rod (9) is a telescopic structure of the tube sleeve, and a limiting bolt (901) is screwed onto the outer tube of the limiting telescopic rod (9).

6. The oil drum handling trolley according to claim 1, characterized in that, A handrail (12) is provided between the ends of the two crane handles (4) away from the opening of the U-shaped chassis (1), and the two ends of the handrail (12) are fixedly connected to the ends of the two crane handles (4).

7. The oil drum handling trolley according to claim 1, characterized in that, The inner walls of the semi-circular fixing plate (601) and the movable arc-shaped clamping plate (603) are respectively provided with rubber layers (604).

8. The oil drum handling trolley according to claim 1, characterized in that, The support arm (2) includes an inner rod (201) and an outer tube (202). The inner rod (201) is slidably inserted into the outer tube (202), and the inner rod (201) is fixed in position by a pin (203).

9. The oil drum handling trolley according to claim 1, characterized in that, The top of the suspension arm (5) is rotatably connected to the crane handle (4) by bolt A (501) and bolt hole A (502), and the bottom of the suspension arm (5) is connected to the connecting frame (505) fixed on the semi-circular fixing plate (601) by bolt B (503) and bolt hole B (504).

10. The oil drum handling trolley according to claim 1, characterized in that, The wheel (3) is a self-locking roller.

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