CN204978720U - Can reduce waist intensity of labour's handcart - Google Patents

Abstract

A trolley that can reduce the labor intensity of the waist, including a vehicle frame, the loading platform is slidably connected to the guide rail of the vehicle frame, an air pump is fixed at the lower end of the vehicle frame, the air pump is connected to the power supply equipment on the vehicle frame, and the air pump is connected to the air storage tank through a conduit , the air storage tank is connected to the cylinder and the air through a pipeline, and a one-way valve is arranged on the conduit and the pipeline; the cylinder push rod is arranged at the lower part of the cylinder, and the tension spring is arranged between the cylinder push rod and the bottom of the frame, and the cylinder push rod and the load The first sprocket, the second sprocket, the third sprocket and the fourth sprocket are arranged between the platforms, the second sprocket is coaxially connected with the third sprocket, and the first sprocket and the second sprocket are mounted with The first chain, the third sprocket and the fourth sprocket are provided with a second chain, the first chain is fixedly connected to the loading platform on the side close to the loading platform, and the second chain is fixed to the cylinder pushing rod on the side close to the cylinder push rod. even. It can adapt to different quality goods through the change of air pressure, reduce the number of times of bending during the handling process, and reduce the labor intensity of the waist.

Description

A trolley capable of reducing the labor intensity of the waist

Technical field:

The utility model relates to the technical field of transport tools, in particular to a trolley which can reduce the labor intensity of the waist.

Background technique:

As we all know, in the process of logistics transportation, trolleys play an indispensable role. At present, most of the handcarts popular in the market are handcarts with the most basic functions, which cannot effectively reduce the redundant labor consumption of the waist caused by the multiple bending of relevant personnel when loading or unloading goods.

It is a development trend of the trolley to make the trolley lightweight, convenient and meet the requirements of ergonomics.

The Chinese patent with the application number 201320453526.6 discloses a groove-shaped car body formed by using the bottom plate and the two side plates to reduce the use of manpower when the geotechnical coil is transported. But it does not take into account the labor consumption of porters when they complete the moving operation, and its force reduction function is not comprehensive.

The Chinese patent application number 200610052159.3 discloses a novel trolley that adopts a driving motor to control the lifting table to lift up and down along two guide rails. This wheelbarrow adopts electric device to increase the cost of wheelbarrow greatly, is unfavorable for lightweight. In addition, the battery needs to be replaced regularly.

The Chinese patent application number 201420647728.9 discloses a gallows, lower frame, casters, and springs that move along the chute of the lower frame through the top fixed block of the elastic mechanism to cause changes in the angle between the fixed frame and the sliding frame to achieve adaptive station operation requirements. A new type of trolley with lifting platform for loading. However, the device has a complex structure and cannot be adapted to objects of various weight ranges.

Looking at the existing devices, or because of its high cost, or because of its complex structure, or because it only works in a specific field, most trolleys are not widely used in daily life or on the delivery site.

Utility model content:

The purpose of the utility model is to provide a handcart which uses cylinders to lift goods, which is simple, lightweight, easy to operate, and can reduce the labor intensity of the waist.

In order to achieve the above object, the utility model adopts the following technical solutions:

The utility model provides a trolley that can reduce the labor intensity of the waist, including a vehicle frame, guide rails are arranged on both sides of the vehicle frame, the loading platform is slidably connected on the guide rails, and a pumping system is provided on the vehicle frame. The pumping system Including the power supply equipment fixed on the frame, the air pump is fixed at the lower end of the frame, the air pump is connected to the power supply equipment, the air pump is connected to the air storage tank through a conduit, the conduit is provided with a first one-way valve, and the gas storage tank is connected to the cylinder and the Air, a second one-way valve is set on the connecting pipe between the air storage tank and the cylinder, and a third one-way valve is set on the external air pipeline of the cylinder; a cylinder push rod is set on the lower part of the cylinder, and the two ends of the tension spring are respectively Connected to the end of the cylinder push rod and the bottom of the frame, a stroke amplification mechanism is arranged between the cylinder push rod and the stage, and the stroke amplification mechanism includes a first sprocket, a second sprocket, a third sprocket, and a fourth chain The second sprocket is coaxially connected with the third sprocket, the first chain is erected between the first sprocket and the second sprocket, the second chain is erected between the third sprocket and the fourth sprocket, and the second One side of the chain close to the loading platform is fixedly connected with the loading platform, and the side of the second chain close to the cylinder push rod is fixedly connected with the cylinder push rod.

The air storage tank is connected to one end of the three-way joint through a pipeline, and the other two ends of the three-way joint are respectively connected to the cylinder and the external air pipeline.

The object table is slidably connected on the guide rail through four sliders.

The bottom of the frame is provided with rollers.

A barometer is connected above the air storage tank.

The power supply device is a lithium battery.

The utility model has the beneficial effects of a trolley that can reduce the labor intensity of the waist and its use method: simple and light weight, easy to operate, and extremely low energy consumption, which can reduce the number of times of bending over during the transportation process, reduce the labor intensity of the waist, and can be applied In various fields such as logistics and transportation, production lines, etc., it is easy to promote.

Description of drawings:

Fig. 1 is the structural representation of a kind of handcart that can reduce waist labor intensity of the present utility model;

Fig. 2 is a structural representation of a handcart that can reduce the labor intensity of the waist of the utility model;

Fig. 3 is a structural schematic diagram of a trolley that can reduce the labor intensity of the waist according to the present invention.

1-Frame, 2-Roller, 3-Guide rail, 4-Stage, 5-Slider, 6-Power supply equipment, 7-Air pump, 8-Conduit, 9-Air storage tank, 10-First one-way valve , 11-pipeline, 12-tee joint, 13-cylinder, 14-second one-way valve, 15-third one-way valve, 16-cylinder push rod, 17-extension spring, 18-first sprocket, 19-second sprocket, 20-third sprocket, 21-fourth sprocket, 22-first chain, 23-second chain, 24-first shaft, 25-second shaft, 26-third shaft , 27-horizontal bearing, 28-barometer.

detailed description:

Below in conjunction with embodiment the utility model is described in further detail.

As shown in Figures 1 to 3, a trolley that can reduce the labor intensity of the waist includes a frame 1, a roller 2 is arranged at the bottom of the frame 1, guide rails 3 are arranged on both sides of the frame 1, and a loading platform 4 passes through four The slider 5 is slidably connected to the guide rail 3, and the frame 1 is equipped with a pumping system. By controlling the amount of gas pumped into the gas storage tank and the cylinder by the pumping system, the initial gas compression ratio in the cylinder can be changed, so as to adapt to different quality The lowering and lifting of the cargo can make the object realize damped lowering and automatic recovery. The pump air system includes a power supply device fixed on the frame 1, and an air pump 7 is fixed on the lower end of the frame 1. The air pump 7 is powered by a power supply connected to it. The equipment is operated with power supply, the air pump 7 is connected to the gas storage tank 9 through the conduit 8, the first check valve 10 is arranged on the conduit 8, the gas storage tank 9 is connected to one end of the tee joint 12 through the pipeline 11, and the other two ends of the tee joint 12 are respectively connected to The air cylinder 13 and the external air pipeline are provided with a second one-way valve 14 on the communication pipe 11 between the air storage tank 9 and the cylinder 13 to control whether the air storage tank 9 and the cylinder 13 are connected or not. The pressure of the cylinder 13 can be adjusted to suit goods of different qualities. A third one-way valve 15 is provided on the air pipeline section outside the cylinder 13 to control whether the cylinder 13 is connected to the outside world. After the handling process is completed, the gas in the cylinder 13 is discharged. Cylinder 13 can produce different thrusts because of the difference of self internal gas compression ratio; Described cylinder 13 bottoms are provided with cylinder push rod 16, and extension spring 17 two ends are respectively connected with cylinder push rod 16 ends and vehicle frame 1 bottom, and cylinder A stroke amplification mechanism is arranged between the push rod 16 and the stage 4, and the stroke amplification mechanism includes a first sprocket 18, a second sprocket 19, a third sprocket 20, a fourth sprocket 21, and the second sprocket 19 is coaxially connected with the third sprocket 20, a first chain 22 is erected between the first sprocket 18 and the second sprocket 19, and a second chain 23 is erected between the third sprocket 20 and the fourth sprocket 21 , the first chain 22 is fixedly connected to the stage 4 on the side close to the stage 4, and the second chain 23 is fixedly connected to the cylinder pushrod 16 on the side close to the cylinder push rod 16, and the cylinder is changed by the transmission of sprockets of different sizes. The size of the stroke of the push rod enlarges the stroke of the stage to several times of the stroke of the cylinder push rod.

An air pressure gauge 28 is connected above the air storage tank 9 for assisting in regulating the air pressure in the air storage tank.

The power supply device 6 is a lithium battery.

The object stage 4 is an L-shaped object-carrying aluminum plate, the rear wall of the vertical surface of the aluminum plate is fixedly connected with four moving sliders 5 respectively, and the moving sliders 5 are set in pairs on the guide rails 3 on both sides of the vehicle frame, so that the object stage 4 can slide up and down along the guide rail 3, and the guide rail 3 is fixed on the vehicle frame 1 through the positioning block.

The first sprocket 18 and the second sprocket 19 are 28-toothed sprockets, the third sprocket 20 and the fourth sprocket 21 are 10-toothed sprockets, and the cylinder push rod 16 moves to drive the second chain 23 to move. The second chain 23 drives the second sprocket 19 coaxially connected with the third sprocket 20 to move, and the first sprocket 18 drives the stage 4 to move through the first chain 22. Since the two sprockets with different numbers of teeth have the same angular velocity, Therefore, the strokes of the two groups of chains are different, so that the lifting stroke of the object table 4 is to expand the stroke of the cylinder push rod 16 by 2.8 times.

The first sprocket 18 is fixed on the first shaft 24, the second sprocket 19 and the third sprocket 20 are fixed on the second shaft 25, the fourth sprocket 21 is fixed on the third shaft 26, and the three shafts are all Be fixed on the vehicle frame by 27 horizontal bearings.

One end of the extension spring 17 is welded on the vehicle frame 1, and the other end is affixed to the end of the cylinder push rod 16. During the whole handling process, the tension spring 17 mainly plays a role in balancing the gravity of the object table 4 itself, overcoming the dynamic and static frictional resistance, overcoming the impedance caused by the unevenness of the guide rail, and playing a buffering role when the object table descends without load.

The utility model is a method for using a trolley that can reduce the labor intensity of the waist, and the specific steps are as follows:

The first step: pre-loading treatment:

When it is necessary to load the goods with the trolley, close the third check valve 15, open the first check valve 10 and the second check valve 14, and supply the air pump 7 and the first check valve 14 and the second check valve 15 Gas is pumped into the gas tank 9 and the cylinder 13, the air pressure in the air cylinder 13 is adjusted, the air pressure in the air cylinder 13 is increased, the cylinder push rod 16 moves downward, and the second chain 23 fixedly connected with the cylinder push rod 16 rotates, driving and The second sprocket 19 that the third sprocket 20 is coaxially connected rotates in the same direction, and drives the object stage 4 fixedly connected with the first chain 22 to move upward on the slide rail 3. When the object stage moves to the upper end of the guide rail 3, Close the air pump 7 and the first one-way valve 10;

Step 2: Load the goods:

The goods are placed on the stage 4, and the stage 4 moves downward under the gravity of the goods, and the first chain 22 fixedly connected with the stage 4 rotates, which drives the first sprocket 18 to rotate, and then drives the chain wheel 18 to rotate with the second chain. The third sprocket 20 connected coaxially with the sprocket 19 rotates in the same direction, driving the cylinder push rod 16 fixedly connected with the second chain 23 to move upward, and the gas is pushed into the gas storage tank 9 from the cylinder 13, and continues piece by piece Put the goods on the loading platform 4, and the loading platform 4 continues to slide down on the slide rail 3 to complete the stacking of the goods, so that people do not need to bend over to stack the goods from the low to the high during the process of placing the goods;

Step Three: Unloading the Cargo:

The goods are taken away from the loading platform 4 one by one, the gravity of the goods decreases, the gas enters the cylinder 13 from the gas storage tank 9, the pressure in the cylinder 13 increases, the cylinder push rod 16 moves downward, and pushes the cylinder with the cylinder. The second chain 23 fixedly connected to the rod 16 rotates, driving the second sprocket 19 coaxially connected with the third sprocket 20 to rotate in the same direction, driving the stage 4 fixedly connected to the first chain 22 to move upward on the slide rail 3 , continue to take away the goods one by one on the loading platform 4, and the loading platform 4 continues to move upwards on the slide rail 3 to complete the unloading of the goods, avoiding that when people take the goods, they need to bend over to pick up and place them as the goods decrease. Cargo at the bottom end of stage 4.

The fourth step: post-unloading treatment:

When the cart is unloaded, close the first one-way valve 10 and the second one-way valve 14, open the third one-way valve 15, and adjust the air pressure in the air cylinder 13 by the third one-way valve 15 to make the cylinder The air pressure in 13 decreases, and the cylinder push rod 16 moves upwards, and the second chain 23 fixedly connected with the cylinder push rod 16 rotates, driving the second sprocket 19 coaxially connected with the third sprocket 20 to rotate in the same direction, driving the second sprocket 19 coaxially connected with the third sprocket 20 to rotate in the same direction as the first The stage 4 fixedly connected by a chain 22 moves downward on the slide rail 3 , and closes the third one-way valve 15 when moving to the bottom of the guide rail 3 .

When moving goods, take three pieces of goods as an example. When three goods are placed in sequence, each piece of goods can achieve a damped drop under the action of the pump air system. In the process of lifting goods, when the upper layer is removed When loading the goods, under the action of the pump air system, the next two pieces of goods are lifted to the highest level; when the middle level goods are removed, the bottom level goods are lifted to the highest level again. According to this operation, the relevant personnel can take three pieces of goods in sequence without bending down, which can effectively reduce the number of times the relevant personnel bend down to pick up the objects, and reduce the labor intensity of the waist.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present utility model can still be The specific implementation of the utility model is modified or equivalently replaced, and any modification or equivalently replaced without departing from the spirit and scope of the utility model shall be covered by the scope of the present claims.

Claims (6)

1. A trolley that can reduce the labor intensity of the waist, characterized in that: it includes a vehicle frame, guide rails are arranged on both sides of the vehicle frame, the loading platform is slidably connected on the guide rails, the vehicle frame is provided with a pumping system, and the pumping system The system includes power supply equipment fixed on the frame, an air pump is fixed at the lower end of the frame, the air pump is connected to the power supply equipment, the air pump is connected to the gas storage tank through a conduit, the conduit is provided with a first one-way valve, and the gas storage tank is connected to the cylinder through a pipeline and air, a second one-way valve is set on the connecting pipe between the air storage tank and the cylinder, and a third one-way valve is set on the external air pipeline of the cylinder; They are respectively connected to the end of the cylinder push rod and the bottom of the vehicle frame, and a stroke amplification mechanism is arranged between the cylinder push rod and the loading platform, and the stroke amplification mechanism includes a first sprocket, a second sprocket, a third sprocket, a fourth sprocket, the second sprocket is coaxially connected with the third sprocket, the first chain is erected between the first sprocket and the second sprocket, the second chain is erected between the third sprocket and the fourth sprocket, The side of the first chain close to the loading platform is fixedly connected with the loading platform, and the side of the second chain close to the cylinder push rod is fixedly connected with the cylinder push rod. 2. A trolley capable of reducing waist labor intensity according to claim 1, characterized in that: said air storage tank is connected to one end of a three-way joint through a pipe, and the other two ends of the three-way joint are respectively connected to a cylinder and an external air pipe. 3. A trolley capable of reducing the labor intensity of the waist according to claim 1, characterized in that: the object carrier is slidably connected to the guide rails through four sliders. 4. A trolley capable of reducing waist labor intensity according to claim 1, characterized in that: the bottom of the frame is provided with rollers. 5. A trolley capable of reducing waist labor intensity according to claim 1, characterized in that an air pressure gauge is connected above the air storage tank. 6. A trolley capable of reducing waist labor intensity according to claim 1, characterized in that: the power supply device is a lithium battery.