CN205575127U - Express delivery helping hand loading and unloading car - Google Patents

Abstract

The utility model discloses an express booster loading and unloading vehicle, which is composed of a clamping device (1), a stroke multiplication device (2), a counterweight adjustment device (3) and a height adjustment device (4); the stroke multiplication device ( 2) It is connected with the clamping device (1) through a rack and pinion mechanism; the counterweight adjustment device (3) is located under the clamping device (1); the height adjustment device (4) is connected with the frame and the carriage, and is realized by the cylinder chain. Lifting of the carriage. During the handling process, the utility model can reduce the labor intensity of people, save manpower, improve the loading and unloading efficiency, effectively avoid the occurrence of violent loading and unloading incidents, and ensure the safety of commodities; as a simple mechanical booster, it is easy to use and easy to operate.

Description

Express power-assisted loading and unloading truck

technical field

The utility model relates to a loading and unloading vehicle, in particular to an express booster loading and unloading vehicle.

Background technique

The growing prosperity of e-commerce has brought broad opportunities to the express delivery industry, and the volume of express delivery business continues to grow. According to surveys, in 2014, my country's express delivery business revenue was 204 billion yuan, a year-on-year increase of 42%. The business volume of express delivery has increased by 52% year-on-year, and its market scale is constantly expanding, and the volume of express goods is also growing rapidly. However, the transportation speed of express delivery cannot keep up with people's requirements for express delivery speed, so it is necessary to increase the transportation speed of express delivery. Among them, the loading and unloading process of goods has become a time-consuming and labor-intensive link that cannot be ignored.

At present, considering that forklifts, conveyor belts and other loading and unloading tools are affected by the site and other factors, and they are large in size and inconvenient to use, most logistics express companies still retain the original manual loading and unloading operations in many operations, relying on human shoulders. Portable loading and unloading of goods. The work efficiency is low, there is a lack of coordination between each other, the order is chaotic, and the loading and unloading process is generally operated by multiple people due to reasons such as bulky cargo, heavy cargo, and long loading and unloading distances. Repeated bending movements also cause damage to the waist of people In order to increase the speed of loading and unloading, some express companies have uncivilized phenomena such as violent loading and unloading. Therefore, it is very necessary to design a small booster device that can assist people in loading and unloading express delivery.

Contents of the invention

The technical problem to be solved by the utility model is to provide a courier power-assisted loading and unloading vehicle to reduce the labor intensity of the courier and realize labor-saving grasping, handling and loading and unloading of goods.

The technical solution adopted by the utility model to solve its technical problems is: it is composed of a clamping device, a stroke multiplication device, a counterweight adjustment device and a height adjustment device; the stroke multiplication device is connected with the clamping device through a rack and pinion mechanism; The heavy adjustment device is located under the clamping device; the height adjustment device is connected with the frame and the carriage, and the lifting of the carriage is realized through the cylinder chain.

The clamping device is composed of an operating handle, a clamping rope, a scissor mechanism and a splint; the operating handle is connected to one end of the scissor mechanism through two clamping ropes, and the other end of the scissor mechanism is connected to the splint .

The operating handle is mainly composed of a pressing handle and a return spring, the pressing handle is installed at the end of the operating handle, and the returning spring is installed between the two; the operating handle is connected with the scissor mechanism through a clamping rope.

The scissors mechanism is fixed to the two splints by welding; in the scissors mechanism, one end is fixed, and the other end is connected to the clamping rope.

The splint has non-slip rubber particles pasted on its inner wall.

The stroke multiplying device is composed of a fixed rack, a rolling gear and a driven rack, wherein: the fixed rack is at the bottom, fixed with the vehicle body; the driven rack is at the top, connected with the scissor mechanism and the splint; the rolling The gear is connected with the fixed rack and the driven rack through the shaft.

The counterweight adjustment device adopts a parallelogram structure and is composed of a counterweight and a piston rod; wherein: the upper and lower bases of the parallelogram are connecting rods, and the two sides of the parallelogram are piston rods; the counterweight It is fixed on the lower bottom of the parallelogram, and the two midpoints on both sides are respectively fixed to the carriage by two bearings, which are two fixed points. The parallelogram mechanism can rotate around these two fixed points, so as to realize the balance weight. move.

The height adjustment device is composed of pedals, steel wire ropes, lifting cylinders and gear chains; wherein: the pedals are respectively connected to the lifting cylinder and the gear chain through steel wire ropes, and the lifting cylinder is installed on the vehicle frame. The cylinder is equipped with piston.

Compared with the prior art, the utility model has the following beneficial effects:

1. Realize the labor-saving operation of grabbing, carrying, and loading and unloading goods by a single person, avoiding the repetitive bending process of people;

2. The counterweight automatic adjustment device is designed by using the parallelogram structure, which can save manpower within a certain range and achieve labor-saving effect;

3. The application of linear differential stroke multiplication mechanism increases the grabbing distance and improves work efficiency.

4. The height adjustment device is designed by using the sprocket chain and the lifting cylinder, and the height of the carriage can be adjusted through the pedals.

Online shopping has become the preference of more and more people, and the express business volume is also constantly increasing. The express loading and unloading speed and the safety performance of express delivery have become the restrictive factors for the development of the express delivery industry. The technical solution of the utility model can be realized as follows:

1. Fast loading and unloading speed: the rack and pinion structure is used to design the stroke multiplication mechanism, so that people can grab the goods in a small range of activities, and the grabbing range is doubled; the goods are stored in the compartment, saving work time, improving work efficiency.

2. Good safety performance: the loading and unloading of express delivery is realized with ingenious mechanical design, which solves the loss of goods caused by violent loading and unloading, and improves the safety performance of express delivery.

3. Low investment cost: Only one person is required to operate the entire express delivery truck, and can complete the entire operation process of grabbing, handling, and loading and unloading, which saves manpower and reduces the consumption of human resources. It is suitable for loading and unloading express delivery at sorting stations.

In a word, the utility model can be used for the loading and unloading of express delivery at the sorting station, which meets the characteristic requirements of the loading and unloading machinery, and the equipment is small in size, simple in structure, and easy to operate, which will win a lot of markets for this work. It greatly reduces the labor intensity of couriers, improves logistics operation efficiency and service quality, reduces logistics costs, and greatly promotes the rapid development of logistics.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a front view of Fig. 1 .

Fig. 4 is a left side view of Fig. 1 .

Fig. 5 is a schematic diagram of the structure of the clamping device.

Fig. 6 is a schematic diagram of the operating handle mechanism.

Fig. 7 is a schematic diagram of the scissors mechanism and the splint device.

The row in Fig. 8 is a schematic diagram of the structure of the range multiplication device.

Fig. 9 is a schematic diagram of a stroke multiplying device---a rack and pinion mechanism.

Fig. 10 is a schematic diagram of the structure of the counterweight adjustment device—stretched state.

Fig. 11 is a schematic diagram of the structure of the counterweight adjustment device—balanced state.

Fig. 12 is a schematic diagram of pedal control of the height adjusting device structure.

Fig. 13 is a diagram of the cylinder chain of the height adjustment device.

Figure 14 is a front view of the overall size.

Figure 15 is a top view of the overall size.

Fig. 16 is a dimensional drawing of a parallelogram.

In the figure: 1. Clamping device; 2. Stroke multiplication device; 3. Counterweight adjustment device; 4. Height adjustment device; 5. Operating handle; 6. Clamping rope; 7. Scissor mechanism; 8. Splint; .Fixed rack; 10. Rolling gear; 11. Driven rack; 12. Counterweight; 13. Piston rod; 14. Pedal; 15. Wire rope; 16. Lifting cylinder; 17. Gear chain.

detailed description

The utility model discloses a mechanically designed express-assisted loading and unloading vehicle with a trolley as a carrier, light and convenient design, and mainly realizing the functions of grabbing, transporting, and loading and unloading goods. The clamping handle is designed like a bicycle brake device, and the scissor mechanism is used to realize the clamping and loosening of the clamping device; the clamping device is equipped with a stroke multiplication mechanism to realize long-distance transportation and increase the scope of grasping; there is also a four-bar mechanism Drive the counterweight to move to adapt to the extended torque of the gripping device, and according to the principle of torque balance, the cargo can be lifted with the help of the counterweight in a labor-saving manner. The sliding compartment can not only store the goods, but also facilitate the loading and unloading of the goods, saving manpower.

Below in conjunction with embodiment and accompanying drawing, the utility model will be further described, but not limited to the utility model.

The express power-assisted loading and unloading vehicle provided by the utility model has a structure as shown in FIGS. Among them: the stroke multiplying device 2 is realized by a rack and pinion mechanism, and is connected with the clamping device 1; the counterweight adjustment device 3 is located under the clamping device 1, and when the operation of clamping goods is performed, it is realized by the counterweight adjustment device 3 The counterweight is adjusted, and the height adjusting device 4 is then connected with the vehicle frame and the carriage, and realizes the lifting of the carriage by the cylinder chain.

The clamping device 1 has a structure as shown in FIG. 5 , and is composed of an operating handle 5 , a clamping rope 6 , a scissors mechanism 7 and a splint 8 , and is used to realize clamping of goods. Wherein: the operating handle 5 is connected to one end of the scissor mechanism 7 through two clamping ropes 6 , and the other end of the scissor mechanism 7 is connected to the splint 8 . The staff pinches the operating handle 5 to tighten the clamping rope 6, thereby driving the scissor mechanism 7 to move, and clamping the splint 8.

The structure of above-mentioned operating handle 5 is as shown in Figure 6: adopt the design similar to bicycle brake, mainly be made up of pressing handle and back-moving spring, pressing handle is contained in the end of operating handle 5, and back-moving spring is contained between the two. The operating handle 5 is connected to the scissors mechanism 7 through the clamping rope 6. When the pressing handle is pinched, it can drive the clamping rope 6 to move and tighten, thereby driving the scissors mechanism 7 and the splint 8 to move.

The structure of the above-mentioned scissors mechanism 7 and clamping plate 8 is as shown in Figure 7: the scissors mechanism and the two clamping plates are fixed by welding, wherein one end of the scissors mechanism is fixed, and the other end of the scissors mechanism is connected to the clamping rope 6. The inner wall of the splint is pasted with non-slip rubber particles, which can increase the friction and increase the gripping force of the goods. When the operating handle 5 is tightened, the clamping rope 6 drives the scissors mechanism to move, so that the splint moves to realize the clamping action of the goods.

The stroke multiplication device 2, as shown in Figure 8 and Figure 9, is composed of a fixed rack 9, a rolling gear 10 and a driven rack 11, and is used to realize the multiplication of the stroke of the clamped goods, so that one end of the splint 8 The moving distance is twice the moving distance of the human hand. Wherein: fixed rack 9 is below, fixed with vehicle body; Driven rack 11 is above, is connected with scissors mechanism 7 and splint 8, and rolling gear 10 is connected fixed rack 9 and driven rack 11 by shaft.

The stroke multiplying device 2 described above works on the following principle: the contact point between the rolling gear 10 and the fixed rack 9 is the instantaneous center of speed of the two, and it can be seen from the geometric relationship that the operating handle 5 pushes the rolling gear 10 to move forward, driving the driven rack The scissors mechanism 7 on the 11 and the splint 8 move forward twice the distance, so as to achieve the effect of multiplying the stroke when picking up the goods.

The structure of the counterweight adjustment device 3 is shown in Figure 10 and Figure 11. The device adopts a parallelogram structure and is composed of a counterweight 12 and a piston rod 13, and is used to adjust the weight during the process of picking up goods. The position of the counterweight achieves the purpose of labor saving. Wherein: the upper base and the lower base of the parallelogram are connecting rods, the two sides of the parallelogram are piston rods 13, the counterweight 12 is fixed on the lower base of the parallelogram, and the two midpoints of the two sides respectively pass through two A bearing is fixed with the carriage, and is two fixed points, and the parallelogram mechanism can rotate around these two fixed points, thereby realizing the movement of the counterweight 12.

Figure 10 and Figure 11 show two different situations, Figure 10 is a schematic diagram of the stretching state, and Figure 11 is a schematic diagram of the equilibrium state. When the working state is as shown in Figure 10, the clamping device clamps the goods forward, and the counterweight 12 moves backward to act as a balance moment; when the working state is as shown in Figure 11, the clamping device is in the withdrawn state, and the counterweight 12 in the middle. In addition: the counterweight 12 can only achieve the labor-saving effect within a certain range, and the operator can select a suitable counterweight weight according to the weight of the goods that are often transported.

Described height adjusting device 4, its structure as shown in Figure 12 and Figure 13, is made up of pedal 14, wire rope 15, lift cylinder 16 and gear chain 17, is used for regulating the height of carriage, facilitates the loading and unloading of goods. Wherein: pedal 14 is connected with cylinder and gear chain 17 respectively by wire rope 15, and cylinder is contained on the vehicle frame, and this cylinder is equipped with piston.

The working principle of the above-mentioned height adjustment device 4 is: by stepping on the pedal 14, the force is transmitted to the end of the steel wire rope 15, and the adjustment rod connected to the cylinder is pulled to open the switch bolt connected to the cylinder, and the upper and lower ends of the piston communicate with high-pressure nitrogen gas. , the pressure is equal. However, because the effective area of the upper end of the piston is greater than that of the lower end, the force equal to the pressure multiplied by the active area, so the upper end of the piston has a greater force than the lower end, and the cylinder rises to adjust the height of the carriage to suit the loading height of the cargo. The upper end of the cylinder is equipped with a gear, and the upward movement of the cylinder is the upward movement of the gear. The gear chain makes the upward movement of the cylinder stable and improves the bearing capacity of the height adjustment device.

This embodiment provides the important dimensions of some components, as follows:

1. The overall size design of express power-assisted loading and unloading truck:

From the perspective of ergonomics and operability, we designed the overall size as follows. Through investigation, we found that the height of the existing small and medium-sized express freight vehicles is mostly 500-1000mm, so the rotation fulcrum of this express power-assisted loading and unloading vehicle is designed. The height is H=800mm, considering the overall labor saving, the middle position of the express power-assisted loading and unloading vehicle is taken as the fulcrum of rotation, 1000mm away from the handle end, the overall device height H1=1000mm, at this height, it is suitable for most small and medium-sized trucks or vans, its width The choice of the choice is based on the person's income. Generally, the shoulder width of a man is about 400mm. Considering the width of the material and the adaptability, W=500mm; , take the length L=1500mm; thus obtain the overall size of the courier power-assisted loading and unloading vehicle shown in Table 1, Figure 13 and Figure 14.

2. Size design of four-bar mechanism (parallelogram mechanism):

From the perspective of human factors engineering, the stretching distance of the human arm is about 500-700mm, see Figure 15, so a four-bar mechanism is designed with a side length of 500mm, and the vertical distances from the upper and lower bars to the rotation point are 300mm and 200mm respectively. When a person pushes 600mm forward through the handle, according to the similarity ratio, the position of the counterweight moves backward by 400mm, and the force required to push the counterweight to move during the process of picking up the goods with no load is only to overcome the force of the counterweight rising 2/3 of the force is less.

The above dimensions are for reference only and can be adjusted according to the actual situation.

The express booster loading and unloading truck provided by the utility model is used in the express sorting center to assist the staff to realize the fast and labor-saving handling and loading and unloading of the goods. The working process is: the staff moves the operating handle forward, and the splint end can be Move twice the distance of the human hand to carry out large-scale cargo grabbing. When clamping, the operator squeezes the operating handle, and the force is transmitted to the scissor mechanism through the wire rope, which drives the movement of the splint to clamp the cargo. In this process, the self-adaptive parallelogram mechanism drives the counterweight to move to achieve labor-saving effect. When the cargo is full, the staff will push the trolley to the truck, step on the pedals to make the height of the trolley box and the truck compartment the same, and load the goods into the truck compartment to achieve a fast and labor-saving effect.

Table 1 The overall size of the express power-assisted loading and unloading truck

Claims (8)

1. A kind of express booster loading and unloading vehicle is characterized in that being made up of clamping device (1), stroke multiplying device (2), counterweight adjusting device (3) and height adjusting device (4); Described stroke multiplying device (2 ) is connected with the clamping device (1) through a rack and pinion mechanism; the counterweight adjustment device (3) is located under the clamping device (1); the height adjustment device (4) is connected with the frame and the carriage, and the carriage is realized through the cylinder chain. up and down. 2. The express delivery power-assisted loading and unloading vehicle according to claim 1, characterized in that the clamping device (1) is composed of an operating handle (5), a clamping rope (6), a scissors mechanism (7) and a splint (8) Composition; the operating handle (5) is connected to one end of the scissor mechanism (7) through two clamping ropes (6), and the other end of the scissor mechanism (7) is connected to the splint (8). 3. The express power-assisted loading and unloading vehicle according to claim 2, characterized in that the operating handle (5) is mainly composed of a pressing handle and a return spring, the pressing handle is mounted on the end of the operating handle (5), and the returning spring It is installed between the two; the operating handle (5) is connected with the scissor mechanism (7) through the clamping rope (6). 4. The express delivery power-assisted loading and unloading vehicle according to claim 2, characterized in that the described scissors mechanism (7) is fixed by welding with two splints; the scissors mechanism is fixed at one end, and its other Connect the clamping rope (6) to one end. 5. The express delivery power-assisted loading and unloading vehicle according to claim 4, characterized in that the inner wall of the splint is pasted with non-slip rubber particles. 6. The express power-assisted loading and unloading vehicle according to claim 1, characterized in that the stroke multiplying device (2) is composed of a fixed rack (9), a rolling gear (10) and a driven rack (11) , wherein the fixed rack (9) is on the bottom and fixed to the vehicle body; the driven rack (11) is on the top and connected to the scissor mechanism (7) and the splint (8); the rolling gear (10) is connected to the fixed rack through the shaft (9) and driven rack (11). 7. The express delivery power-assisted loading and unloading vehicle according to claim 1, characterized in that the counterweight adjustment device (3) adopts a parallelogram structure and is composed of a counterweight (12) and a piston rod (13); The upper and lower bases of the quadrilateral are connecting rods, and the two sides of the parallelogram are piston rods (13); the counterweight (12) is fixed on the lower base of the parallelogram, and the two midpoints of the two sides pass The two bearings are fixed with the carriage and are two fixed points, and the parallelogram mechanism can rotate around these two fixed points, thereby realizing the movement of the counterweight (12). 8. The express delivery power-assisted loading and unloading vehicle according to claim 1, characterized in that the height adjustment device (4), which consists of a pedal (14), a wire rope (15), a lifting cylinder (16) and a gear chain ( 17) composition; wherein pedal (14) is connected with elevating cylinder (16) and gear chain (17) respectively by wire rope (15), and elevating cylinder is contained on the vehicle frame, and this cylinder is equipped with piston.