CN205632531U - Stair transport vehicle using motor - Google Patents

Abstract

The utility model relates to a stair-carrying power-assisted vehicle, which includes a stair boosting part, a braking protection part, a loading and unloading part, and mainly consists of a vehicle frame, an inner groove connecting rod, a crank slider, a crank connecting rod, a torsion spring, a spring, a ratchet, It is composed of pawl, brake line, handbrake handle, car body with guide rail, mobile frame, manual hoist and so on. By using the principle of leverage, when a person pushes down, the trolley moves upwards with the support rod as the fulcrum to realize the function of going upstairs; when the support rod is lifted to the next step, the wheel is self-locked through the ratchet and pawl to prevent the wheel from falling behind. Move, use the crank connecting rod, connecting rod mechanism, and ring spring to make the vertical rod move upwards and backwards, reduce the angle of lifting the car body, prevent the cargo from turning backwards, and realize braking protection; through the detachable manual hoist, The car body and mobile frame with guide rails can load and unload objects with large volume and weight to realize labor-saving loading and unloading. The utility model has the advantages of simple structure, light portability and wide applicability.

Description

A kind of stair carrying moped

technical field

The utility model relates to a transport vehicle, in particular to a stair transport booster vehicle, which is mainly used for transporting articles when going up stairs.

Background technique

With the acceleration of the urbanization process, bungalows are gradually replaced by high-rise buildings. Although high-rise buildings or luxurious hotels are equipped with elevators, many buildings below seven floors are still not equipped with elevators. Problem with objects having difficulty going upstairs. In many residential buildings without elevators, most of the handling of goods is now mainly manual handling, and for some heavy and bulky goods, it will consume a lot of manpower and material resources during the handling process, and there will be a lot of problems. Security risks. There are also some stair handling tools on the market, but most of them are driven by motors to provide power for going upstairs, and star wheel structures are used to ensure the continuity of going upstairs. However, such stair going devices are expensive, have large vibration, and have high quality. , bulky and inconvenient to carry. In order to save manpower and material resources when going upstairs, and guarantee the safety of article simultaneously, need a kind of quality to be little, carry light, the practical upstairs tool that cost is relatively cheap.

Contents of the invention

The technical problem to be solved by the utility model is to provide a kind of transport moped for carrying items upstairs, so as to facilitate express delivery and decoration workers to carry large-sized and high-quality valuables upstairs in residential buildings without elevators, reducing manual labor. Strength, and at the same time, it has a protective function for the goods and the moving personnel, so as to realize the safe and fast moving of the goods upstairs and improve the handling efficiency.

The technical scheme that the utility model adopts:

The utility model relates to a stair carrying booster vehicle, comprising: a stair booster part, a braking protection part, and a loading and unloading part. The booster part of the stairs is installed on the frame close to the wheel. The brake protection includes the brake protection of the wheel. It is installed between the wheel and the frame, and there is a mounting frame in the middle. Lift to prevent excessive body roll angle protection, installed between the frame and the support rod.

The booster part of the stairs is mainly composed of a vehicle frame, an inner groove connecting rod, a support rod, a spring, etc. The inner groove connecting rod and the support rod, and the support rod and the vehicle frame are connected by open pivot pins in a triangular shape, and the middle of the inner groove connecting rod There is an inner groove, and the open shaft pin connected with the frame and the support rod can move freely in the inner groove. The spring connects the frame and the support rod and is in a triangle shape. The support rod, the spring, the inner groove connecting rod and the frame form two triangles. shape. When the split pin shaft and the inner groove connecting rod move relative to each other, the length of the inner groove connecting rod is changed. The length of the inner groove of the inner groove connecting rod restricts the limit position that the support rod can reach, and the angle between the support rod and the frame is changed. The spring makes the When the support rod is not stressed, it is at the maximum included angle. When an external force is applied to press down, the object is lifted upwards, and the wheels go up to the next step of the stairs.

The wheel braking protection part is mainly composed of a ratchet, a pawl, a torsion spring, a spring, and a mounting frame. The ratchet is mounted on the wheel, and the pawl is mounted on the mounting frame with a pin shaft. The torsion spring is sleeved on the pin shaft and connected at one end. On the pawl, one end is fixed to the mounting frame, and the mounting frame is installed on the rack with the chute. The mounting frame has two pin shafts. When the mounting frame is at the bottom end of the chute, the spring tensions the mounting frame, and the ratchet ratchet The claws are engaged to realize self-locking, the wheel can move forward freely and lock backward. When the mounting bracket is on the upper side, the pin shaft falls on the locking groove where the chute is located, the chute cannot be lowered, the engagement of the ratchet pawl is invalid, and there is no self-locking.

The support rod is automatically lifted to prevent the protection part from excessive inclination of the vehicle body. It is composed of a crank connecting rod, a connecting rod, a torsion spring, a brake line, and a hand brake handle. The auxiliary small wheel is driven by the hand brake handle. One end of the hand brake line is fixed to the shaft, and the other end Connect the handbrake handle. At the beginning, the handbrake wire is wound on the shaft for a certain number of turns. Hold the handbrake handle tightly to convert the stretching motion of the handbrake wire into the rotation motion of the auxiliary small wheel. The small wheel is integrated with the shaft and passes through the bearing and the frame. Connection, the auxiliary small wheel and the support rod are fixed in the slot on the frame through the split pin shaft, the frame, the auxiliary small wheel and the support rod are in a triangular shape, and a torsion spring is installed between the auxiliary small wheel and the frame to store the auxiliary small The elastic potential energy produced by the torsion spring when the wheel rotates, when the auxiliary small wheel loses the driving force, the elastic potential energy of the torsion spring makes the auxiliary small wheel automatically return to the initial state.

The loading and unloading part is composed of a car body with guide rails, a mobile frame, and a manual hoist. There are guide rails on the frame, and the mobile frame is installed on the frame through the guide rails. Installed on the beam, the manual hoist is connected with the mobile frame with steel wires to form a simple lifting platform. The power of the lifting platform is provided by a manual hoist, and the items are loaded on the mobile rack, and the manual hoist is used to provide power to make the items rise and reduce the labor intensity when people carry them. When the items are unloaded from the transport vehicle, the self-locking property of the manual hoist is used to prevent the items from falling suddenly and protect the items.

Description of drawings

Fig. 1 is a structural schematic diagram of a stair-carrying booster;

Fig. 2 is a schematic diagram of the ratchet pawl structure;

Fig. 3 is a top view and a right view of the stair-carrying moped;

Fig. 4 is a schematic diagram of the loading and unloading mechanism;

In the attached picture:

1. Ratchet and pawl protection device; 2. Crank connecting stem protection mechanism; 3. Lever mechanism; 4. Loading and unloading mechanism; 5. Stair handling moped frame; 6. Inner groove connecting rod; Spring; 9, connecting rod; 10, small wheel; 11, handbrake; 12, ratchet; 13, pawl; 14, installation block; 15, manual hoist; 16, mobile frame.

detailed description

A further example of a stair transport assisting device of the present invention will be described below in conjunction with the description of the drawings and specific implementation methods.

As shown in Figure 1, the stair transport moped is mainly composed of a ratchet pawl protection device 1, a crank connecting rod protection mechanism 2, a lever mechanism 3, a loading and unloading mechanism 4, and a stair transport moped frame 5.

As shown in Figures 1 and 3, the stair assisting part is mainly composed of a frame 5, an inner groove connecting rod 6, a support rod 7, and a spring 8. The inner groove connecting rod 6 and the support rod 7 are connected by a crank slider. When the inner groove connecting rod 6 moves, the length of the inner groove connecting rod 6 is changed, the length of the inner groove of the inner groove connecting rod restricts the limit position that the support rod can reach, and the angle between the support rod and the vehicle frame is changed, and the spring 8 makes the support rod It is at the maximum included angle when no force is applied. When the carrier applies external force to press down, the inner groove connecting rod 6 restricts the limit position that the support rod can reach, and the support rod 7 is used as the support rod of the lever principle, and the article is lifted upwards, and the wheels go up to the next step. Stairs, the support rod, The wheels are on the same step, then the car body 5 is lifted, the support rod 7 rises, and the support rod 7 returns to the most initial position under the tension of the spring 8, so as to realize the first-order staircase circulation of the article.

As shown in Figure 2, the wheel braking protection part is mainly composed of ratchet 12, pawl 13, and mounting block 14. At the next step, when lifting, the entire vehicle frame tilts backward, the center of gravity of the entire truck moves backward, and the wheels are prone to slipping down. The self-locking protection is realized by the engagement of the ratchet 12 and the pawl 13. The ratchet 12 can only be One direction is self-locking, while the other direction can move freely, so that the wheels can move forward freely and lock backward. During the lifting process of the support rod 7, it can not only ensure that the wheel does not move backward, realize the self-locking protection function, but also not restrict the forward movement of the wheel. The ratchet pawl 13 can move along with the mounting bracket in the chute, which can ensure that the ratchet and ratchet pawls will not work all the time when working on the flat ground, ensuring smooth and efficient work on the flat ground.

As shown in Figures 1 and 3, the support rod formed by the principle of the crank connecting rod is automatically lifted to prevent the protection part from excessive inclination of the vehicle body. It is composed of a connecting rod 9, a small wheel 10, and a hand brake 11. According to the principle of triangle similarity, when the support rod 7 is lifted, if the support rod 7 can reach the next step, the lifting range of the human side is too large, causing the center of gravity of the transport vehicle to move backward too much, and the transport vehicle is prone to rollback. By using the crank connecting rod and connecting rod mechanism, utilizing the rotation of the auxiliary small wheel 10, the connecting rod 9 drives the supporting rod 7 to move upwards and forwards, thereby reducing the required moving range of the carrier. The auxiliary small wheel is driven by the handbrake handle, which converts the stretching motion of the handbrake wire into the rotational motion of the auxiliary small wheel, thereby driving the connecting rod 9, and the ring spring is installed on the shaft of the small wheel 10. When the driving force is lost, the auxiliary small wheel 10 automatically rotates. Return to the initial state. The protection function is realized by assisting in changing the movement of the support rod.

As shown in Figure 4, the loading and unloading part is composed of a car body 5 with guide rails, a moving frame 16, and a manual hoist 15. A simple lifting platform is formed by the car body 5 and the mobile frame 15 with guide rails. The power of the lifting platform is provided by a manual hoist 16 and is transmitted to the mobile frame 15 through a wire rope. The articles are loaded on the mobile frame 15. The gourd 16 provides power to pull the item up, reducing the labor intensity when people carry it. When the articles are unloaded from the transport vehicle, the self-locking property of the manual hoist 16 is used to prevent the articles from falling down suddenly, thereby protecting the articles. Through the above two processes, functions such as labor saving and protection during loading and unloading can be realized.

The above specific embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or equivalent Replacement, without departing from the spirit and scope of the technical solutions of the present invention, should be covered by the scope of the claims of the present invention.

Claims (4)

1. A stair-carrying moped, comprising: a stair booster part, a brake protection part, a loading and unloading part, the stair booster part is installed on the vehicle frame close to the wheels, and the brake protection has the brake protection of the wheels and prevents the vehicle body from over-inclining. Large protection, the brake protection of the wheel is installed between the wheel and the frame, and there is a mounting frame in the middle to prevent the body from excessive inclination. The protection is installed between the frame and the support rod, and the loading and unloading part is above the frame. The guide rail is connected with the vehicle frame. 2. A stair-carrying moped according to claim 1, characterized in that in the stair boosting part, the inner groove connecting rod and the support rod, and the support rod and the vehicle frame are connected by open pivot pins, which are in a triangular shape, and the middle of the inner groove connecting rod is in the shape of a triangle. There is an inner groove, and the open shaft pin connected with the frame and the support rod can move freely in the inner groove. The spring connects the frame and the support rod and is in a triangular shape. The support rod, the spring, the inner groove connecting rod and the frame form two triangle shape. 3. A kind of stair handling booster according to claim 1, characterized in that the ratchet wheel is installed on the wheel in the brake protection part of the brake protection part, the ratchet is installed on the mounting frame through the pin shaft and the torsion spring, and the installation The frame is connected with the chute on the frame through the split pin shaft. When the ratchet pawls are engaged, the ratchet locks itself in one direction and moves freely in the other direction; the handbrake line of the brake protection part to prevent excessive inclination of the vehicle body is connected to the handbrake The handle, one end is fixed to the shaft and wound several times, the shaft and the small wheel are integrated, connected to the frame through bearings, a torsion spring is installed between the auxiliary small wheel and the frame, and the auxiliary small wheel and the support rod are fixed on the frame through the split pin In the slot hole on the top, the vehicle frame, the auxiliary small wheel and the support rod are in a triangular shape, and the handbrake handle drives the auxiliary small wheel to rotate, thereby driving the support rod to move. 4. A kind of stair handling moped according to claim 1, characterized in that there are guide rails on the frame in the loading and unloading part, the mobile frame is installed on the frame through the guide rails, the manual hoist is connected with the mobile frame with steel wires, and the manual hoist It is installed on the beam of the frame and drives the moving frame up and down.