CN104444907B - Simple heavy stuff carrying and feeding trolley - Google Patents

Abstract

The invention discloses a simple loading vehicle for transporting heavy objects, which belongs to the field of transport tools. The invention comprises a base, a universal caster arranged on the base, a bracket fixed integrally with the base, a feeding bracket arranged on the top of the bracket, a sliding bracket arranged in the feeding bracket, and a support arranged at the front of the feeding bracket device, a manual winch fixed at the rear of the sliding bracket, a pulley block and a lifting hook installed at the front of the sliding bracket, the pulley block includes a fixed pulley and a movable pulley, and a wire rope is drawn from the manual winch, and the wire rope goes around the fixed pulley and the movable pulley in turn The rear is fixed on the sliding bracket or the fixed pulley bracket; the rear of the base is equipped with a fixed supporting plate, and the front is equipped with a movable supporting plate. The invention utilizes a simple structure to realize the functions of heavy object lifting, transfer and machine tool loading, which reduces the labor intensity of workers; at the same time, the structure is simple, the operation is convenient, the cost is low, and the safety is high, which meets the use requirements of small and medium-sized enterprises .

Description

A simple heavy material handling loading vehicle

technical field

The invention relates to a transport vehicle, more specifically, to a simple heavy object transport loading vehicle.

Background technique

In the machinery industry, it is often necessary to move some relatively heavy workpieces and small equipment back and forth, so it is often necessary to use a truck. For heavy workpieces, there are some difficulties and dangers in manual handling. Accidents of workpieces crushing workers often occur, and manual handling often occurs bumps and bumps. For workpieces with high product quality requirements, such bumps are not allowed Defects, once bumps appear, often need to repair the workpiece, and even cause the workpiece to be scrapped, affecting the normal production order of the enterprise. In some large and medium-sized enterprises, special hoisting equipment is generally equipped. Workers directly use the hoisting equipment to place the workpiece on the truck, and then transfer it to the place where it is needed. When the workpiece is unloaded, it needs the assistance of the hoisting equipment, and the operation is cumbersome. More equipment is required, and the equipment investment cost also increases accordingly.

Pallet trucks are especially widely used in mold processing and manufacturing enterprises. A pair of molds often requires multiple processes to complete processing, and different processes require different equipment to complete, so a pair of molds requires multiple handling processes before processing is completed. General mold processing enterprises are equipped with air vehicles, which are used to hoist the mold, but the running track of the air vehicle is unchanged, so it is not flexible to use, and the operation of the air vehicle requires certain experience. Once the mold shakes greatly, it is likely to injure people. In recent years, accidents of injuring people due to improper operation of the aircraft have also occurred from time to time. Therefore, it is necessary to design a truck that facilitates the handling of heavy objects in the workshop to meet the needs of the machinery industry for handling heavy objects, avoid the risk of aircraft operation and ensure that heavy objects do not collide; in addition, it is also necessary to ensure that the truck Simple operation and low cost to meet the needs of small and medium-sized enterprises.

In addition, heavy objects such as mechanical parts and molds need to be processed on various machine tools, and it is very troublesome to place these heavy objects smoothly on the machine tools. For medium-weight parts, molds, etc., generally multiple workers are required to carry and load materials together, which is very troublesome and unsafe; for heavier parts, molds, etc., special hoisting equipment is required to assist in loading materials. The requirements are high, and the driving motor (electric hoist) of the hoisting equipment often breaks down, and the operation is not very safe.

Contents of the invention

1. The technical problem to be solved by the invention

The purpose of the present invention is to overcome the disadvantages that the existing transport vehicles do not have the functions of hoisting heavy objects and loading machine tools, and the operation of heavy object handling is cumbersome and has low safety. The scheme uses a simple structure to realize the functions of heavy object lifting, transfer and machine tool loading, which reduces the risk of collision of heavy objects during transportation and the incidence of work-related injuries during manual transportation, reduces the labor intensity of workers, and facilitates the transportation of heavy objects. Loading, processing and unloading on the machine tool; at the same time, the invention has simple structure, convenient operation, low cost, high safety, reduces the use of special hoisting equipment, and meets the use needs of small and medium-sized enterprises.

2. Technical solution

In order to achieve the above object, the technical scheme provided by the invention is:

A simple heavy object handling and loading vehicle of the present invention comprises a base, universal casters arranged on the four feet of the base, a bracket fixed integrally with the base, an upper wheel set on the top of the bracket and capable of sliding back and forth on the bracket. Material support, a sliding support set in the loading support and capable of sliding back and forth on the loading support, a support device set at the front of the loading support, a manual winch fixed at the rear of the sliding support, and a The pulley block and the lifting hook, the pulley block includes a fixed pulley and a movable pulley, a wire rope is drawn from the manual winch, and the wire rope is fixed on the sliding bracket or the fixed pulley bracket after going around the fixed pulley and the movable pulley in turn. The lifting hook is connected with the movable pulley; the rear part of the base is equipped with a fixed pallet, and the front part is equipped with a movable pallet, and the movable pallet is hinged with the fixed pallet.

Furthermore, two outer slide rails are fixed in parallel on the top of the bracket, the cross-sectional shape of the outer slide rails is "凵" shape, and the opening directions of the two outer slide rails are opposite; the upper The two sides of the material support are respectively equipped with inner slide rails, the inner slide rails are installed in the outer slide rails, and the rear end of the inner slide rails is equipped with a lower roller that can roll on the lower side wall of the outer slide rails and an upper roller that can roll on the upper side wall of the outer slide rail; the front end of the outer slide rail is fixed with a roller bracket, and the support roller for supporting the inner slide rail is installed on the roller bracket.

Furthermore, the sliding bracket is connected with the loading bracket through a slide rail.

Furthermore, the support device includes a support disc, a screw and a hand wheel, and two nuts are respectively installed at both ends of the front beam of the feeding bracket, and the screw is matched with the above-mentioned nut. The supporting disc is installed on the lower end of the screw rod, and the hand wheel is installed on the upper end of the screw rod.

Furthermore, the screw is a T-shaped screw, and the nut is a T-shaped nut.

Furthermore, a sliding bracket hook is installed on the rear crossbeam of the sliding bracket, and a sliding bracket clamp matched with the above-mentioned sliding bracket hook is arranged on the rear crossbeam of the described loading bracket; The rear beam of the material bracket is also provided with a material loading bracket drag hook, and the rear beam of the bracket is provided with a material loading bracket clamp matched with the above-mentioned material loading bracket drag hook.

Furthermore, both the fixed pulley and the movable pulley are double pulleys.

Furthermore, a rubber sleeve is installed at the rear end of the outer slide rail to play the role of buffering and limiting.

Furthermore, a trolley is also provided on the support.

3. Beneficial effect

Compared with the existing known technology, the technical solution provided by the invention has the following remarkable effects:

(1) A simple heavy object handling and loading vehicle of the present invention, which includes a base, universal casters arranged on the four feet of the base, a bracket fixed integrally with the base, located on the top of the bracket and can be mounted on the bracket The loading bracket that slides back and forth, the sliding bracket that is set in the loading bracket and can slide back and forth on the loading bracket, the support device set at the front of the loading bracket, the manual winch fixed at the rear of the sliding bracket, installed on the sliding The pulley block and the lifting hook at the front of the bracket, the fixed pallet is installed at the rear of the base, and the movable pallet is installed at the front, and the movable pallet is hinged with the fixed pallet; the movable pallet is turned up, and the heavy The object is under the lifting hook. Because the heavy object is lifted inside the loading truck, the truck is more stable and not easy to tilt; after lifting the heavy object, turn the movable pallet to the base and move the sliding bracket to make it The heavy object is located in the middle of the movable pallet and the fixed pallet, and finally the heavy object is placed on the pallet to realize the smooth transportation of the heavy object; when loading the machine tool, push the truck with the workpiece to be processed to the front of the machine tool, and Push out the loading bracket, adjust the support device, make the front end of the loading bracket support on the machine table, then lift the heavy object, push the sliding bracket forward to the machine table and lower the heavy object; use simple structure to realize The function of heavy lifting, transfer and machine tool loading is improved, the risk of bumping heavy objects during handling and the incidence of work-related injuries caused by manual handling are reduced, the labor intensity of workers is reduced, and the loading and processing of heavy objects on machine tools is facilitated. Unloading; at the same time, the present invention has simple structure, convenient operation, low cost, high safety, reduces the use of special hoisting equipment, and meets the needs of small and medium-sized enterprises;

(2) A kind of simple and convenient heavy object handling loading car of the present invention, the top of its bracket is fixed with two outer slide rails in parallel, the cross-sectional shape of the outer slide rails is "凵" shape, and the opening of the two outer slide rails The direction is opposite; the two sides of the feeding bracket are respectively equipped with inner slide rails, the inner slide rails are installed in the outer slide rails, and the rear end of the inner slide rails is equipped with a lower roller that can roll on the lower side wall of the outer slide rails and a The upper roller that can roll on the upper side wall of the outer slide rail; the front end of the outer slide rail is fixed with a roller bracket, and the support roller for supporting the inner slide rail is installed on the roller bracket, and the above structure is used to realize the movement of the feeding bracket on the top of the bracket , improve the anti-deformation ability and motion stability of the loading bracket, increase the bearing weight of the loading bracket, and the loading bracket expands and contracts more smoothly and has a longer service life;

(3) A simple heavy object handling loading vehicle of the present invention, the sliding bracket and the loading bracket are connected by a slide rail, which realizes the front and rear sliding of the sliding bracket in the loading bracket, the sliding is stable, and the bearing capacity is large , combined with the extension and retraction of the loading bracket, the stroke of the sliding bracket is larger, which is convenient for the handling of heavy objects and the loading of machine tools;

(4) A kind of simple and easy heavy object handling loading car of the present invention, its support device comprises support disc, screw rod and hand wheel, two nuts are installed respectively at the two ends of the front beam of loading bracket, screw rod and above-mentioned nut Matching, the support disc is installed at the lower end of the screw, and the hand wheel is installed at the upper end of the screw. The screw nut pair is used to realize the adaptability adjustment to the machine table of different heights, which can meet the needs of most machine tools and is easy to adjust. Fast, safe and reliable feeding operation; at the same time, the screw is a T-shaped screw, and the nut is a T-shaped nut, which has good self-locking performance;

(5) A kind of simple heavy object handling loading car of the present invention, the rear portion crossbeam of its sliding support is equipped with sliding support drag hook, and the rear portion crossbeam of feeding support is provided with the sliding support that cooperates with above-mentioned sliding support dragging hook. Bracket clamp; the rear beam of the feeding bracket is also provided with a feeding bracket drag hook, and the rear beam of the bracket is provided with a feeding bracket clamp matched with the above-mentioned feeding bracket drag hook, and the sliding bracket and the The loading bracket is quickly fixed to prevent the sliding bracket and the loading bracket from shaking back and forth when the lifting hook is loaded or when the heavy object is transferred, causing collisions to the workpiece, and it also increases the movement stability of the handling loading vehicle and reduces collision noise ;

(6) A kind of simple heavy object handling loading car of the present invention, its fixed pulley and movable pulley are double pulleys, adopts double pulley block system to greatly reduce the pulling force of wire rope, alleviate the active force of rotating manual capstan, make heavy object Lifting is easier;

(7) A kind of simple and easy heavy object handling loading car of the present invention, the rear end of its outer slide rail is equipped with rubber sleeve, when the loading bracket moves, prevents the strong impact of loading bracket on the handling loading truck bracket, causing To a good buffer and limit effect;

(8) A kind of simple and easy heavy object carrying loading cart of the present invention, also is provided with hand push frame on its bracket, is convenient to the operation of operator to the operation of carrying loading cart, has facilitated the use of carrying loading cart.

Description of drawings

Fig. 1 is the structural representation of a kind of simple and easy heavy object handling loading car of the present invention;

Fig. 2 is the assembly structure schematic diagram of feeding bracket and sliding bracket among the present invention;

Fig. 3 is a schematic diagram of the cooperation structure of the outer slide rail and the inner slide rail in the present invention.

Explanation of the labels in the schematic diagram:

1. Base; 2. Universal casters; 3. Fixed pallet; 4. Hinge; 5. Movable pallet; 6. Bracket; 7. Lifting hook; 8. Movable pulley; 9. Wire rope; 10. Support disc 11, fixed pulley; 12, screw rod; 13, hand wheel; 14, feeding bracket; 15, sliding bracket; 16, outer slide rail; 17, sliding bracket hook; 18, slide rail; 19, manual winch; 20, 21. Slide bracket fixture; 22. Feeding bracket fixture; 23. Rubber sleeve; 24. Hand push frame; 25. Upper roller; 26. Lower roller; 27. Roller bracket; 28. Support roller.

detailed description

In order to further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings and embodiments.

Example

In conjunction with Fig. 1, a kind of simple and easy heavy object handling loading vehicle of this embodiment is mainly used for frequent hoisting, handling and machine tool loading of workpieces, molds, equipment, etc. in machinery industry workshops. The universal caster 2 on the four feet of the base 1, the support 6 fixed as one with the base 1, the feeding support 14 that is located on the top of the support 6 and can slide back and forth on the support 6, is located in the feeding support 14 and The sliding support 15 that can slide back and forth on the loading support 14, the supporting device that is arranged on the front of the loading support 14, the manual winch 19 that is fixed on the rear of the sliding support 15, the block of pulleys and the lifting device installed on the front of the sliding support 15 hook7. The frame structure in which the base 1 and the bracket 6 are fixedly connected together has a firm structure and a light weight. The universal caster 2 has its own locking device, which is convenient for the parking of the loading vehicle for heavy load handling. Manual winch 19 has brake mechanism, and it can lift the heavy object of about 300Kg, when heavy object is hoisted, can control the hoisting height of heavy object at any time, conveniently controls the lifting of heavy object. The pulley block includes a fixed pulley 11 and a movable pulley 8. The fixed pulley 11 is fixedly installed on the front beam of the sliding bracket 15. The movable pulley 8 is located directly below the fixed pulley 11. A steel wire rope 9 is drawn from the manual winch 19, and the steel wire rope 9 is passed around in turn. The fixed pulley 11 and the movable pulley 8 are fixed on the sliding bracket 15 or the fixed pulley 11 support, and the fixed pulley block is used to realize the double reduction of the pulling force of the steel wire rope 9, which reduces the pulling force required for heavy lifting and machine tool loading; Hook 7 is connected with movable pulley 8, is used for hooking heavy objects; Fixed pulley 11 and movable pulley 8 in the present embodiment are double pulleys, and the steel wire rope 9 drawn in the manual winch 19 walks around fixed pulley 11, movable pulley 8, After the fixed pulley 11 and the movable pulley 8, they are fixed on the sliding bracket 15 or the bracket of the fixed pulley 11. Using the above-mentioned double pulley and winding method, in theory, only 1/4 of the weight of the heavy object can be lifted by the pulling force , which greatly reduces the pulling force of the wire rope, reduces the force of rotating the manual winch, and makes hoisting of heavy objects easier. Of course, the fixed pulley 11 and the movable pulley 8 can also be multiple pulleys, and the pulley type and wire rope 9 can be selected according to actual needs. Winding method. The rear portion of the base 1 is equipped with a fixed pallet 3, and the front portion is equipped with a movable pallet 5, and the movable pallet 5 and the fixed pallet 3 are hinged by a hinge 4, and the lifting hook 7 is located above the movable pallet 5, The movable supporting plate 5 can be turned up around the hinge shaft of the hinge 4, which is convenient for heavy objects to be placed in the inside of the handling and loading vehicle, and for convenient heavy object lifting. A kind of simple and easy heavy object handling loading car of the present embodiment, after the movable supporting plate 5 is turned up, can push the handling loading car to the position of the heavy object, make the heavy object be positioned at the bottom of the lifting hook 7, because The heavy objects are hoisted inside the loading truck, the truck is more stable and not easy to tilt; after lifting the heavy objects, turn the movable pallet 5 onto the base 1, and move the sliding bracket 15 so that the heavy objects are on the movable pallet 5 In the middle position with the fixed pallet 3, finally place the heavy object on the pallet to realize the smooth transportation of the heavy object; Push out and adjust the supporting device so that the front end of the loading bracket 14 is supported on the machine tool workbench, then lift the heavy object, push the sliding bracket 15 forward onto the machine tool workbench and lower the heavy object; The functions of lifting, transferring and loading machine tools reduce the risk of bumping heavy objects during handling and the incidence of work-related injuries caused by manual handling, reduce the labor intensity of workers, and facilitate the loading, processing and unloading of heavy objects on machine tools; At the same time, the structure is simple, the operation is convenient, the cost is low, the safety is high, the use of special hoisting equipment is reduced, and the use requirements of small and medium-sized enterprises are met.

Referring to Fig. 1 and Fig. 3, in this embodiment, two outer slide rails 16 are fixed parallel to the top of the bracket 6, the cross-sectional shape of the outer slide rails 16 is "凵" shape, and the two outer slide rails 16 The opening direction of the inner slide rail is opposite; the two sides of the feeding bracket 14 are respectively equipped with inner slide rails, the inner slide rails are installed in the outer slide rail 16, and the rear end of the inner slide rail is equipped with a The lower roller 26 and an upper roller 25 that can roll on the upper side wall of the outer slide rail 16, and the upper roller 25 is positioned at the rear of the lower roller 26; the front end of the outer slide rail 16 is fixed with a roller bracket 27, and the roller bracket 27 is installed There are support rollers 28 for supporting the inner slide rail, and the upper and lower rollers 25 and 26 are used to roll on the upper and lower side walls of the outer slide rail 16, while the support rollers 28 are used to support the front part of the inner slide rail, so that the loading bracket 14 The movement is smoother and more stable, the deformation resistance and motion stability of the feeding bracket 14 are improved, the bearing weight of the feeding bracket 14 is increased, and the feeding bracket 14 expands and contracts more smoothly and has a longer service life. The upper roller 25, the lower roller 26 and the support roller 28 in this embodiment are all rolling bearings, which can provide greater bearing capacity, and have low rolling friction and low noise. In addition, in order to prevent the strong impact of the loading bracket 14 on the loading truck bracket 6, the rear end of the outer slide rail 16 in this embodiment is equipped with a rubber sleeve 23, which plays a good role in buffering and positioning.

Referring to Fig. 2, the sliding bracket 15 in this embodiment is connected to the feeding bracket 14 through a slide rail 18, which is an existing three-section ball slide rail, which has the advantages of simple installation, space saving, high load-bearing capacity It has great advantages and good applicability, and its specific structure and working principle will not be repeated here. Utilize the existing slide rail 18 to realize the front and rear sliding of the sliding bracket 15 in the feeding bracket 14, the sliding is smooth and the bearing capacity is large, combined with the extension and retraction of the feeding bracket 14, the stroke of the sliding bracket 15 is larger, It is convenient for the handling of heavy objects and loading of machine tools. As shown in Fig. 1 and Fig. 2, the support device among the present embodiment comprises support disc 10, screw rod 12 and handwheel 13, and the front portion crossbeam two ends of feeding bracket 14 are respectively equipped with two nuts (not shown in the figure). out), the screw 12 cooperates with the above-mentioned nut, the supporting disk 10 is installed on the lower end of the screw 12, and the handwheel 13 is installed on the upper end of the screw 12, and the lifting of the supporting disk 10 can be realized by turning the handwheel 13, and it can be stably Supported on the machine tool workbench, the screw nut pair is used to realize the adaptive adjustment to the machine tool workbench of different heights, which can meet the loading requirements of most machine tools, and the adjustment is convenient and quick, and the feeding operation is safe and reliable; at the same time, the screw rod 12 is T-shaped screw, the nut is a T-shaped nut, which has good self-locking property. In addition, the rear cross beam of the sliding support 15 is equipped with a sliding support hook 17, and the rear cross beam of the feeding support 14 is provided with a sliding support clamp 21 that matches the above-mentioned sliding support hook 17; The crossbeam is also provided with a feeding bracket drag hook 20, and the rear crossbeam of the support 6 is provided with a feeding bracket clamp 22 matched with the above-mentioned loading bracket drag hook 20, and the sliding bracket clamp 21 and the loading bracket clamp 22 are fast Fixtures, the sliding bracket 15 and the feeding bracket 14 can be quickly fixed by using the quick clamp, so as to prevent the sliding bracket 15 and the loading bracket 14 from shaking back and forth when the lifting hook is loaded or when the heavy object is transferred, causing collision to the workpiece, and also The movement stability of the handling and loading vehicle is increased, and the collision noise is reduced. In addition, the bracket 6 in this embodiment is also provided with a trolley 24, which is convenient for the operator to operate the loading and unloading vehicle, and facilitates the use of the loading and unloading vehicle.

A simple heavy object handling and loading vehicle in this embodiment can realize the functions of heavy object hoisting, transfer, and machine tool loading and unloading. When hoisting heavy objects (workpieces, molds, etc.), first turn up the movable pallet 5, so that a loading space is formed inside the loading and unloading vehicle, and push the vehicle to the place where the heavy objects are to be carried, so that the heavy objects are located above in the loading space; then move the sliding support 15 to make the lifting hook 7 above the weight, and release the brake of the manual winch 19, and hang the weight on the lifting hook 7; turn the manual winch 19 to take up the line, Lift the weight to a suitable height, then turn the movable pallet 5 over and lay it flat, move the sliding bracket 15 so that the heavy object is located at the center of the movable pallet 5 and the fixed pallet 3, and slowly lower the heavy object, that is, the weight is completed. The hoisting of objects on the loading truck. During the hoisting process, the loading bracket 14 can be fixed by the hook 20 of the loading bracket so that it will not slide back and forth. 14 is pushed forward to ensure the smooth and safe hoisting process. After the hoisting of the heavy object is completed, the heavy object can be pushed to the desired position; after reaching the designated position, the heavy object is hoisted again with the lifting hook 7, the movable pallet 5 is turned up, and the heavy object is turned outward Push it out and lower it slowly to complete the unloading of heavy objects.

When loading the machine tool, first push the loading cart equipped with workpieces to be processed to the front of the machine tool, and push the loading bracket 14 forward, so that the supporting device at the front of the loading bracket 14 is located above the machine tool workbench. The wheel 13 makes the support disc 10 supported on the machine table; then use the lifting hook 7 and the manual winch 19 to lift the workpiece slightly higher than the machine table, and slowly push the sliding bracket 15 forward to move the workpiece Go to the top of the machine tool workbench; finally slowly rotate the manual winch 19 to place the workpiece on the machine tool workbench, and complete the loading of the machine tool. When the machine tool is unloading, the loading bracket 14 is also pushed forward, so that the support device at the front of the loading bracket 14 is located above the machine tool workbench, and the handwheel 13 is adjusted so that the support disc 10 is supported on the machine tool workbench; Push the sliding bracket 15 forward to the top of the workpiece, use the lifting hook 7 to lift the workpiece, and pull back the sliding bracket 15 and the loading bracket 14, slowly drop the workpiece onto the pallet, and complete the unloading of the machine tool. In this embodiment, when heavy objects are hoisted and transferred, and machine tools are loaded and unloaded, the operation is smooth and smooth, and the shaking of the heavy objects is small, avoiding the phenomenon of shaking and collision of heavy objects, and at the same time, the operation is simple, safe and reliable.

A simple heavy object handling and loading vehicle of the present invention uses a simple structure to realize the functions of heavy object lifting, transfer and machine tool loading, reduces the risk of collision of heavy objects during transportation and the incidence of work-related injuries during manual transportation, and reduces It reduces the labor intensity of workers and facilitates the loading, processing and unloading of heavy objects on the machine tool; at the same time, the invention has simple structure, convenient operation, low cost, high safety, reduces the use of special hoisting equipment, and meets the needs of small and medium-sized enterprises. usage requirements.

The present invention and its implementations have been schematically described above, and the description is not restrictive. What is shown in the drawings is only one of the implementations of the present invention, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, without departing from the inventive concept of the present invention, without creatively designing a structure and an embodiment similar to the technical solution, it shall all belong to the protection scope of the present invention .

Claims (8)

1. A simple loading vehicle for handling heavy objects, characterized in that it includes a base (1), universal casters (2) set on the four feet of the base (1), and a body fixed with the base (1). Bracket (6), the feeding bracket (14) that is located on the top of the bracket (6) and can slide back and forth on the bracket (6), is located in the feeding bracket (14) and can be moved back and forth on the feeding bracket (14) Sliding sliding bracket (15), the support device that is arranged on the front portion of the feeding bracket (14), the manual winch (19) fixed on the rear portion of the sliding bracket (15), the pulley block installed on the front portion of the sliding bracket (15) and The lifting hook (7), the pulley block includes a fixed pulley (11) and a movable pulley (8), a steel wire rope (9) is drawn from the manual winch (19), and the steel wire rope (9) passes around the fixed pulley in turn The pulley (11) and the movable pulley (8) are fixed on the sliding bracket (15) or the fixed pulley (11) bracket, and the lifting hook (7) is connected with the movable pulley (8); the base (1 ) is equipped with a fixed pallet (3) at the rear, and a movable pallet (5) is installed at the front, and the movable pallet (5) is hinged with the fixed pallet (3); the top of the bracket (6) Two outer slide rails (16) are fixed in parallel, the cross-sectional shape of the outer slide rails (16) is "凵" shape, and the opening directions of the two outer slide rails (16) are opposite; the feeding Both sides of the bracket (14) are respectively equipped with inner slide rails, the inner slide rails are installed in the outer slide rails (16), and the rear end of the inner slide rails is equipped with a A lower roller (26) rolling on the lower side wall and an upper roller (25) rolling on the upper side wall of the outer slide rail (16); the front end of the outer slide rail (16) is fixed with a roller bracket (27 ), the support rollers (28) for supporting the inner slide rail are installed on the roller bracket (27). 2. A simple heavy object handling and loading vehicle according to claim 1, characterized in that: the sliding bracket (15) and the loading bracket (14) are connected by a slide rail (18). 3. A simple loading vehicle for handling heavy objects according to claim 2, characterized in that: the support device includes a support disc (10), a screw (12) and a hand wheel (13), and the Two nuts are respectively installed at both ends of the front beam of the feeding bracket (14), the screw (12) is matched with the above nuts, and the support disc (10) is installed at the lower end of the screw (12) , the hand wheel (13) is installed on the upper end of the screw (12). 4. A simple loading vehicle for handling heavy objects according to claim 3, characterized in that: said screw (12) is a T-shaped screw, and said nut is a T-shaped nut. 5. A simple heavy object handling and loading vehicle according to any one of claims 1 to 4, characterized in that: a sliding bracket hook (17) is installed on the rear beam of the sliding bracket (15), The rear beam of the feeding bracket (14) is provided with a sliding bracket clamp (21) matching the above-mentioned sliding bracket hook (17); the rear beam of the feeding bracket (14) is also A loading bracket hook (20) is provided, and a loading bracket clamp (22) matching the above-mentioned loading bracket hook (20) is arranged on the rear beam of the bracket (6). 6. A simple heavy object handling and loading vehicle according to claim 5, characterized in that: both the fixed pulley (11) and the movable pulley (8) are double pulleys. 7. A simple heavy object handling and loading vehicle according to claim 1, characterized in that: the rear end of the outer slide rail (16) is equipped with a rubber sleeve (23) for buffering and limiting bit role. 8. A simple heavy object handling and loading vehicle according to claim 6, characterized in that: the support (6) is also provided with a push frame (24).