A flatbed cart power pusher

Abstract

The present invention discloses a flatbed cart power pusher, comprising a rocker arm, a leg, a foot, a claw and a lifting handle. The lower end of the rocker arm is hinged to the upper end of the leg through a first connecting portion, the foot can be adjustably inserted into the lower end of the leg, and the foot comprises a support rod and a support plate; the claw is U-shaped, and is hinged to the lower end of the rocker arm through a fourth connecting portion arranged on the rear side of its vertical plate; at the same time, a tension spring is hung between the claw and the leg, and a fastener is also installed at the center of the upper horizontal plate of the claw; a lifting handle is pinned to the upper part of the rocker arm, and the lifting handle is connected to the leg through a lifting hanging rope. The present invention has a simple structure, is compact and convenient, occupies little space, and is easy to carry and maintain; by using the principle of lever, one person can realize cart pushing and car chaining, thereby improving the safety and reliability of on-site personnel operation; at the same time, it can be adjusted at any time during the operation according to the vehicle height and on-site use environment, effectively avoiding the occurrence of safety hazards.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine mechanical transportation, and in particular to a flatbed cart power pusher. Background Art

[0002] With the development and progress of science and technology, being able to reduce the labor intensity of workers and improve their work efficiency is the goal pursued by enterprise managers. However, transportation accidents account for a large proportion of accidents in my country's coal industry. In transportation accidents, irregular operations of workers are often the main cause. In the process of lifting and unhooking in various parking lots in the inclined lanes of mines, due to the design of the parking lot and the deformation of the lane pressure, the hook workers use crowbars to pry the vehicles or use electric cars to string cars, or push the cars manually, which is irregular and unsafe. In order to ensure the safety of the hook workers' operation and improve the efficiency of stringing cars, it is necessary to design and process a device for vehicle-assisted pushing of cars. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the above-mentioned prior art and to provide a flatbed cart power pusher by utilizing the principle of lever.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a flatbed cart power pusher, including a rocker arm, a leg, a foot, a claw and a lifting handle. The lower end of the rocker arm is provided with a first pin hole and a first connecting part, the first connecting part is fixedly welded to the rear side of the rocker arm, and a second pin hole is provided on the first connecting part, and the second connecting part is fixedly provided on the rear side of the middle part of the rocker arm. The upper end of the leg is provided with a U-shaped opening, and the two side walls of the U-shaped opening are provided with opposite through-holes, which are pinned to the second pin hole of the first connecting part through a rotating shaft; the lower end of the leg is open, recessed inward to form a hollow section, and the hollow section of the leg is provided with opposite adjustment screw holes; the upper side of one end of the leg close to the U-shaped opening is provided with a third connecting part, and the lower side is provided with a first spring hanging ear. The foot is inserted into the hollow section at the lower end of the leg, including a support rod and a support plate, the support rod and the support plate are welded and fixed at a certain angle, and a plurality of limit screw holes are provided on the support rod, which are pinned to the opposite adjustment screw holes through adjustment bolts. The clamping claw has a U-shaped structure, and a fourth connecting portion is provided at the lower part of the rear end surface of the vertical plate of the clamping claw, and the fourth connecting portion is pin-connected to the first pin hole at the lower end of the rocker arm through a connecting pin shaft; a second spring hanging ear is also provided below the fourth connecting portion, and a third spring hanging ear is provided at the upper part of the rear end surface of the vertical plate; a fastener is also provided at the center position of the upper horizontal plate of the clamping claw.

[0005] The connecting end of the lifting handle is pinned to the second connecting part on the rocker arm, and a protruding hanging ear is provided on the lower end surface thereof, a lifting hanging rope is hung on the protruding hanging ear, and the other end of the lifting hanging rope is hinged to the third connecting part on the supporting leg.

[0006] Tension springs are installed between the first spring hanging ear and the second spring hanging ear, and between the third spring hanging ear and the rotating shaft.

[0007] Furthermore, the lower end of the rocker arm is flatter and thicker than the upper end; a handle is installed at the upper end of the rocker arm, and the handle is made of plastic or rubber material.

[0008] Furthermore, the length of the hollow section at the lower part of the supporting leg is set to be greater than the length of the supporting rod in the supporting foot.

[0009] Furthermore, the support rod in the support leg is a solid structure, and the lower end of the support rod is welded and fixed to the center position of the support plate, and the angle between the support rod and the support plate is in the range of 45° to 60°.

[0010] Furthermore, the support plate in the support leg is divided into a forward area and a pedal area. The forward area is located below the support rod, and its front end edge is upwardly tilted; the pedal area is opposite to the forward area, and its upper end surface is provided with a wavy anti-slip pattern, and the lower end surface is provided with a limiting pointed cone extending downward and perpendicular to the plane of the support plate.

[0011] Furthermore, an annular groove is provided on the limiting pointed cone.

[0012] Furthermore, an anti-skid and anti-collision pad is fixedly installed on the front end surface of the vertical plate in the clamping claw.

[0013] Furthermore, the fastener includes a nut fixedly welded on the claw and a fastening screw, the fastening screw passes through the upper cross plate of the claw, a fastening gasket is installed at the lower end of the fastening screw, and a knob is provided at the upper end.

[0014] Furthermore, a transverse lever is provided along the upper end of the lifting handle.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a simple structure, is compact and convenient, occupies little space, and is easy to carry and maintain; by utilizing the principle of leverage, one person can push the cart and string the carts in series, thereby improving the safety and reliability of operations by on-site personnel; at the same time, during the operation, it can be adjusted at any time according to the vehicle height and the on-site use environment, thereby effectively avoiding the occurrence of potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the rocker arm in the present invention;

[0018] Figure 3 It is a structural schematic diagram of the supporting foot in the present invention;

[0019] Figure 4 It is a structural schematic diagram of the clamping claw in the present invention;

[0020] In the figure: 1, rocker arm, 2, support leg, 3, support foot, 4, claw, 5, lifting handle, 6, handle, 7, lifting rope, 8, tension spring, 9, connecting pin, 10, rotating shaft, 11, first pin hole, 12, first connecting part, 13, second pin hole, 14, second connecting part, 21, U-shaped opening, 22, third connecting part, 23, first spring hanging ear, 24, adjusting bolt, 31, support rod, 32, support plate, 33, limiting screw hole, 34, forward area, 35, anti-slip pattern, 36, limiting cone, 41, vertical plate, 42, upper horizontal plate, 43, fourth connecting part, 44, second spring hanging ear, 45, third spring hanging ear, 46, fastening screw, 47, nut, 48, fastening gasket, 49, knob, 51, protruding hanging ear, 52, horizontal gear lever. DETAILED DESCRIPTION

[0021] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are relational words determined only for the convenience of describing the structural relationships of the various components of the present invention. They do not specifically mean that any component in the present invention must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as a limitation on the present invention.

[0022] In addition, in the invention, the descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings:

[0025] like Figure 1 As shown, a flatbed cart power pusher includes a rocker arm 1, a leg 2, a foot 3, a claw 4 and a lifting handle 5. The rocker arm 1 is made of a solid rod, the upper part of which is slightly bent backwards, and the lower part of the rocker arm 1 is slightly flat and thicker than the upper part. Figure 2A first pin hole 11 and a first connecting portion 12 are provided at the lower end of the rocker arm 1. The first connecting portion 12 is welded and fixed to the rear side of the rocker arm 1, and is provided with a second pin hole 13 penetrating therethrough. A second connecting portion 14 is also welded and fixed to the rear side of the upper middle portion of the rocker arm 1, and is also provided with a transverse through hole penetrating therethrough. A handle 6 is mounted on the upper end of the rocker arm 1, and the handle 6 is made of rubber material or plastic material.

[0026] The leg 2 is cylindrical, and a U-shaped opening 21 is provided at its upper end. The opening width of the U-shaped opening 21 is adapted to the first connecting portion 12 on the rocker arm 1, and symmetrical through-holes are provided on the two side walls of the U-shaped opening 21. The leg 2 and the rocker arm 1 are pinned together by passing the rotating shaft 10 through the rotating hole and the second pin hole 13, and the end of the rotating shaft 10 is fixed by a nut; the lower end of the leg 2 is open, and a hollow section is formed by being recessed inward from its open section and longitudinally along the leg 2. A through-adjusting screw hole is provided in the hollow section of the leg 2 near the lower end opening; a third connecting portion 22 and a first spring ear 23 are fixedly provided on the upper outer wall of the leg 2 near the U-shaped opening 21, and the third connecting portion 22 is arranged opposite to the first spring ear 23, and the third connecting portion 22 is located on the tangent line of the leg 2.

[0027] The support leg 3 is inserted into the hollow section at the lower end of the support leg 2. Figure 3 The support leg 3 includes a support rod 31 and a support plate 32. The support rod 31 is cylindrical and made of a solid stainless steel rod. The outer diameter of the support rod 31 is slightly smaller than the inner diameter of the opening of the support leg 2, so that the support rod 31 can be just inserted into the hollow section of the support leg 2 to avoid shaking back and forth. At the same time, the setting length of the support rod 31 is shorter than the depth of the depression of the hollow section; the lower end of the support rod 31 is welded and fixed to the center position of the upper end surface of the support plate 32, forming a certain angle with the support plate 32, and the angle of the angle can be adjusted and welded according to on-site needs, and its angle range is 45° to 60°; a plurality of penetrating limiting screw holes 33 are provided on the support rod 31. When the support leg 3 is installed in the support leg 2, the adjusting bolt 24 is passed through the adjusting screw hole and the limiting screw hole 33 for pinning and fixing, and the extension length of the support leg 3 can be adjusted according to the actual height of the cart. The support plate 32 is circular and is divided into a forward zone 34 and a pedal zone with a horizontal center line perpendicular to the support rod 31 as the dividing line. The forward zone 34 is located below the support rod 31, and the front end edge of the forward zone 34 is upturned to facilitate the forward movement of the entire booster; the upper end surface of the pedal zone is provided with a wavy anti-slip pattern 35, and the lower end surface is fixedly welded with two downwardly extending limiting cones 36, which are perpendicular to the plane where the support plate 32 is located, and a spiral annular groove is provided on the surface of the limiting cone 36 to increase the grip.

[0028] Combination Figure 4The above-mentioned claw 4 is a horizontal U-shaped structure, and a fourth connecting portion 43 is provided at the lower part of the rear end surface of the vertical plate 41 in the claw 4. The fourth connecting portion 43 is a vertical U-shaped structure, which is adapted to the lower end of the rocker arm 1, and a pin hole is provided on the fourth connecting portion 43. The connecting pin shaft 9 passes through the pin hole on the fourth connecting portion 43 and the first pin hole 11 at the lower end of the rocker arm 1, so that the claw 4 and the rocker arm 1 are pinned together, and the claw 4 can rotate relative to the rocker arm 1; a second spring hanging ear 44 is also fixedly welded on the vertical plate 41 directly below the fourth connecting portion 43, and a tensioning spring 8 is installed between the second spring hanging ear 44 and the first spring hanging ear 23 on the leg 2; a third spring hanging ear 45 is also welded on the upper part of the rear end surface of the vertical plate 41, near a vertical edge position of the vertical plate 41, one end of another tensioning spring 8 is hung on the third spring hanging ear 45, and the other end thereof is hinged to one end of the rotating shaft 10 located on the same side. A fastener is also provided at the center of the upper horizontal plate 42 of the above-mentioned claw 4, and the fastener includes a nut 47 fixedly welded to the upper surface of the upper horizontal plate 42 and a fastening screw 46, the fastening screw 46 passes through the upper horizontal plate 42 of the claw 4, and a fastening gasket 48 is installed at the lower end and a knob 49 is installed at the upper end. Preferably, an anti-skid and anti-collision pad is fixedly provided on the front side of the vertical plate 41 in the claw 4.

[0029] The connecting end of the lifting handle 5 is pinned to the second connecting portion 14 on the rocker arm 1 through a pin shaft, and a protruding ear 51 is also provided on the lower end surface of the lifting handle 5, and a lifting rope 7 is pinned on the protruding ear 51. The lifting rope 7 is rigidly connected, and the other end of the lifting rope 7 is hinged to the third connecting portion 22 on the support leg 2; a transverse guard bar 52 is provided at the upper end edge of the lifting handle 5, near its connecting end, to prevent hands from being pinched during use.

[0030] The specific working principle is as follows: when the operator needs to push the vehicle and string the vehicles together, first adjust the extension length of the support leg 3 according to the height of the vehicle, and limit and fix it by adjusting the bolt 24; then align the claw 4 with the rear edge of the vehicle, rotate the knob 49 to lower the fastening screw 46, and use the fastening gasket 48 at the lower end of the fastening screw 46 and the lower cross plate of the claw to clamp the rear edge of the vehicle; then lift the rocker arm 1, and support the support leg 3 to the action position through the action of the lifting handle 5 and the lifting rope 7, and then the operator steps on the stepping area of ​​the support plate 32 with his foot to step the limit cone 36 into the ground; then press the rocker arm 1 down, and use the lever principle to push the vehicle forward. Lift the rocker arm 1 again, lift the handle 5 to drive the support leg 2 to lift the support leg 3 out of the ground, and under the action of the two tension springs 8, the support leg 2 retracts forward, and the support leg 3 reaches the next action position, and then step on the support plate 32, press the rocker arm 1 down, and the vehicle is pushed forward again. This process repeats itself and pushes the vehicle to the designated tandem position, which can effectively avoid improper positioning and misoperation of on-site operators and reduce the workload of operators.

[0031] Finally, it should be noted that the description of the above implementation mode is only used to illustrate the technical solution of the present invention, and is not a limitation of the present invention. The present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A flatbed cart power pusher, characterized in that: It includes a rocker arm, a leg, a foot, a claw and a lifting handle. The lower end of the rocker arm is provided with a first pin hole and a first connecting part. The first connecting part is fixedly welded to the rear side of the rocker arm and is provided with a second pin hole. The rear side of the middle part of the rocker arm is fixedly provided with a second connecting part. The upper end of the support leg is provided with a U-shaped opening, and opposite through-holes are provided on the two side walls of the U-shaped opening, which are connected to the second pin hole of the first connecting part through a rotating shaft pin; the lower end of the support leg is open and concave inward to form a hollow section, and opposite adjusting screw holes are provided at the position of the hollow section of the support leg; a third connecting part is provided on the upper side of one end of the support leg close to the U-shaped opening, and a first spring hanging ear is provided on the lower side; The support foot is inserted into the hollow section at the lower end of the support leg, and includes a support rod and a support plate. The support rod and the support plate are welded and fixed at a certain angle. A plurality of limit screw holes are provided on the support rod, and are pinned with corresponding adjustment screw holes through adjustment bolts; The support plate in the support foot is divided into a forward zone and a treading zone. The forward zone is located below the support rod, and its front end edge is tilted upward; the treading zone is opposite to the forward zone, and its upper end surface is provided with a wavy anti-slip pattern, and its lower end surface is provided with a limiting pointed cone extending downward and perpendicular to the plane where the support plate is located; The clamping claw is of U-shaped structure, and a fourth connecting part is provided at the lower part of the rear end surface of the vertical plate of the clamping claw, and the fourth connecting part is pin-connected with the first pin hole at the lower end of the rocker arm through a connecting pin shaft; a second spring hanging ear is also provided below the fourth connecting part, and a third spring hanging ear is provided at the upper part of the rear end surface of the vertical plate; a fastener is also provided at the center position of the upper horizontal plate of the clamping claw; The connecting end of the lifting handle is pin-connected to the second connecting part on the rocker arm, and a protruding hanging ear is provided on the lower end surface thereof, and a lifting hanging rope is hung on the protruding hanging ear, and the other end of the lifting hanging rope is hinged to the third connecting part on the supporting leg; Tension springs are installed between the first spring hanging ear and the second spring hanging ear, and between the third spring hanging ear and the rotating shaft.

2. A flatbed cart power pusher according to claim 1, characterized in that: The lower end of the rocker arm is flatter and thicker than the upper end; a handle is installed on the upper end of the rocker arm, and the handle is made of plastic or rubber material.

3. A flatbed cart power pusher according to claim 1, characterized in that: The length of the hollow section at the lower part of the supporting leg is set to be greater than the length of the supporting rod in the supporting foot.

4. A flatbed cart power pusher according to claim 1, characterized in that: The support rod in the support leg is a solid structure, and the lower end of the support rod is welded and fixed to the center position of the support plate, and the angle between the support rod and the support plate is in the range of 45° to 60°.

5. A flatbed cart power pusher according to claim 1, characterized in that: An annular groove is arranged on the limiting pointed cone.

6. A flatbed cart power pusher according to claim 1, characterized in that: An anti-skid and anti-collision pad is fixedly installed on the front end surface of the vertical plate in the clamping claw.

7. A flatbed cart power pusher according to claim 1, characterized in that: The fastener comprises a nut fixedly welded on the clamping claw and a fastening screw rod, the fastening screw rod passes through the upper horizontal plate of the clamping claw, a fastening gasket is installed at the lower end of the fastening screw rod, and a knob is arranged at the upper end of the fastening screw rod.

8. The flatbed cart power pusher according to claim 1, characterized in that: A transverse gear bar is arranged along the upper end of the lifting handle.

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