CN106945699A - A kind of handcart surmounted obstacles - Google Patents

Abstract

A trolley capable of crossing obstacles belongs to the technical field of cargo handling. The trolley includes a support frame, a cart handle is arranged on the top of the support frame, a fork plate is fixed at the bottom of the support frame, the fork plate is perpendicular to the support frame, and the lower surface of the support frame is fixed There is a large wheel support frame, which is arranged near the bottom of the support frame. The large wheel support frame is provided with a large wheel shaft. The two ends of the large wheel shaft are equipped with large wheels. The large wheels can rotate on the large wheel shaft and support The lower surface of the frame is provided with a small wheel support frame, the small wheel support frame is arranged between the large wheel support frame and the cart handle, the small wheel support frame is provided with a small wheel shaft, the small wheel shaft and the large wheel shaft are parallel to each other, and the small wheel shaft Both ends are fitted with small wheels, the small wheels can rotate on the small wheel shaft, and the vertical distance from the farthest end of the small wheel to the support frame is greater than or equal to the vertical distance from the farthest end of the large wheel to the support frame. The trolley of the invention has a simple structure and is easy to cross road obstacles.

Description

A trolley that can overcome obstacles

technical field

The invention belongs to the technical field of cargo handling, in particular to a trolley capable of overcoming obstacles.

Background technique

As a convenient and labor-saving cargo handling tool, trolleys are widely used in supermarkets, construction sites, factories, stations, airports, etc., which can effectively reduce the labor load of porters. Existing handcart is divided into wheelbarrow and two-wheel handcart, commonly used is the handbarrow of two wheels. The wheels of the two-wheeled cart are generally smaller, and the vehicle body is a long support frame. The support frame of the wheel axle is installed at the bottom of the support frame. The wheel axle is installed on the wheel axle support frame. A fork plate is installed in the direction perpendicular to the support frame at the bottom of the support frame to load goods, and the top end of the support frame is two handles. This kind of two-wheeled trolley can be used very conveniently on flat roads or relatively gentle slopes, but when encountering obstacles on the road, such as speed bumps, road shoulder stones or thresholds, etc., this kind of trolley is more difficult to walk. Difficult, the porter usually pushes the car with two people, or pulls the car upside down. Although there are now carts that can climb stairs, there are three tires on the left and right sides of the cart, which are distributed in a star shape in the radial direction of the shaft, but when this cart walks on a flat road, four wheels are in contact with the ground, increasing the tire pressure. The resistance that pushes cart to advance greatly. Therefore, a new and convenient structure is needed to solve the above-mentioned problems.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides a trolley capable of surmounting obstacles. The trolley has a simple structure and is easy to cross road obstacles.

In order to achieve the above object, the present invention adopts the following technical solutions:

A trolley capable of surmounting obstacles, comprising a support frame, the top of the support frame is provided with a cart handle, the bottom of the support frame is fixed with a fork plate, the fork plate is perpendicular to the upper surface of the support frame, the support frame A large wheel support frame is fixed on the lower surface, and the large wheel support frame is arranged near the bottom of the support frame. A large wheel shaft is arranged on the large wheel support frame, and large wheels are sleeved on both ends of the large wheel shaft. The big wheel can rotate on the big wheel shaft, and the lower surface of the support frame is provided with a small wheel support frame, and the small wheel support frame is arranged between the large wheel support frame and the cart handle, and the small wheel support frame A small wheel shaft is provided, the small wheel shaft and the big wheel shaft are parallel to each other, small wheels are fitted on both ends of the small wheel shaft, the small wheels can rotate on the small wheel shaft, and the farthest end of the small wheel is supported by The vertical distance of the frame is greater than or equal to the vertical distance from the farthest end of the large wheel to the support frame.

The small wheel support frame can move along the length direction of the support frame.

The vertical distance from the farthest end of the small wheel support frame to the support frame can be telescopically adjusted.

Beneficial effects of the present invention:

The invention provides a trolley capable of crossing obstacles. The trolley has a simple structure and is convenient to use. While possessing the cargo transport function of an ordinary trolley, it can also conveniently cross obstacles encountered on the road during transportation.

Description of drawings

Fig. 1 is the structural representation of the trolley that can cross obstacles in the present invention;

Fig. 2 is the schematic diagram when the present invention is used normally;

Fig. 3 is a schematic diagram when the present invention crosses obstacles;

In the figure: 1-support frame, 2-cart handle, 3-fork plate, 4-big wheel support frame, 5-big wheel axle, 6-big wheel, 7-small wheel support frame, 8-small wheel axle, 9 - small wheels.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 3 , a trolley capable of crossing obstacles belongs to the technical field of cargo handling, and is used for conveniently crossing obstacles on the road during the process of transporting goods.

The trolley capable of crossing obstacles in the present invention comprises a support frame 1, a cart handle 2 is provided on the top of the support frame 1, a fork plate 3 is fixed on the bottom of the support frame 1, the fork plate 3 is perpendicular to the upper surface of the support frame 1, and the fork plate 3 is used to load the goods to be transported. The lower surface of the support frame 1 is fixed with a large wheel support frame 4, and the large wheel support frame 4 is arranged near the bottom of the support frame 1, so that the cart can be in an upright support state when loading and unloading goods. Big wheel support frame 4 is provided with big wheel axle 5, and big wheel axle 5 is parallel to support frame 1 and fork plate 3 on space, and the two ends of big wheel axle 5 are all sleeved with big wheel 6, and big wheel 6 can be on big wheel Rotate on wheel axle 5.

The lower surface of the support frame 1 is provided with a small wheel support frame 7, and the small wheel support frame 7 is arranged between the large wheel support frame 4 and the cart handle 2. In this embodiment, the small wheel support frame 7 can move along the length direction of the support frame 1 between the large wheel support frame 4 and the cart handle 2, so that the distance between the small wheel support frame 7 and the large wheel support frame 4 can be adjusted. Relative position to accommodate obstacles of different sizes encountered. The small wheel support frame 7 is provided with a small wheel shaft 8, the small wheel shaft 8 is parallel to the large wheel shaft 5, and the two ends of the small wheel shaft 8 are equipped with a small wheel 9, and the small wheel 9 can rotate on the small wheel shaft 8, and the small wheel shaft 8 is selected. 9 As auxiliary wheels, it can effectively reduce the overall weight of the device and reduce the workload of the transporters. The vertical distance of the farthest end of the small wheel 9 from the support frame 1 is greater than or equal to the vertical distance of the farthest end of the large wheel 6 from the support frame 1, so as to ensure that the large wheel 6 can effectively cross road obstacles. In order to adapt to obstacles of different specifications encountered, the vertical distance from the farthest end of the small wheel support frame 7 to the support frame 1 can be telescopically adjusted. In this embodiment, the small wheel support frame 7 adopts sleeve type telescopic adjustment. In the embodiment, a spiral telescopic adjustment can be adopted.

In addition, the trolley structure provided by the present invention is also suitable for the transformation application of the wheelbarrow.

The one-time use process of the present invention will be described below in conjunction with the accompanying drawings.

The state of hand barrow during normal use is as shown in Figure 2, and both hands are holding hand barrow handle 2, and big wheel 6 is contacted with ground and advances. When the trolley encounters an obstacle during its travel, the state is as shown in Figure 3. First, the relative position of the small wheel support frame 7 and the large wheel support frame 4 and the length of the small wheel support frame 7 need to be adjusted according to the size of the obstacle. . After that, press the cart handle 2 downward with both hands to make the small wheel 9 contact the ground, continue to press the cart handle 2 downward, so that the large wheel 6 leaves the ground, and ensure that the lower surface of the large wheel 6 is higher than the upper surface of the obstacle . Use the small wheel 9 as the traveling wheel, push the handcart to move forward, and after the large wheel 6 has completely crossed the obstacle, lift the handle of the cart, make the large wheel 6 touch the ground, and simultaneously make the small wheel 9 leave the ground, and use the large wheel 6 as the walking wheel. The wheels keep going.

The above 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 the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without Any deviation from the spirit and scope of the technical solution shall be covered by the scope of the claims of the present invention.

Claims (3)

1. a kind of handcart surmounted obstacles, including support frame, the top of support frame as described above are provided with cart handle, support frame Bottom is fixed with fork plate, and the fork plate is vertical with the upper surface of support frame, and the lower surface of support frame as described above is fixed with big wheel branch Frame is held, the big wheel support is set close to support frame bottom, and cart wheel shaft is provided with the big wheel support, described The two ends of cart wheel shaft are set with big wheel, and the big wheel can be rotated on cart wheel shaft, it is characterised in that：The support The lower surface of frame is provided with trundle support, the trundle support be arranged at big wheel support and cart handle it Between, dolly wheel shaft is provided with the trundle support, the dolly wheel shaft is parallel to each other with cart wheel shaft, the trundle The two ends of axle are set with trundle, and the trundle can be rotated on dolly wheel shaft, and the trundle distalmost end is away from support The vertical range of frame is more than or equal to vertical range of the big wheel distalmost end away from support frame.

2. the handcart according to claim 1 surmounted obstacles, it is characterised in that：The trundle support can be along branch Support length direction is moved.

3. the handcart according to claim 1 surmounted obstacles, it is characterised in that：The trundle support distalmost end Vertical range apart from support frame is telescopically adjustable.