CN112537362B

CN112537362B - Steel frame snow cart with resistance device

Info

Publication number: CN112537362B
Application number: CN202011192215.XA
Authority: CN
Inventors: 蔺世杰; 马勇
Original assignee: Northwestern Polytechnical University; Wuhan Sports University
Current assignee: Northwestern Polytechnical University; Wuhan Sports University
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2022-05-03
Anticipated expiration: 2040-10-30
Also published as: CN112537362A

Abstract

A steel frame snow vehicle with a resistance device is disclosed. The resistance device includes: a vehicle body upper layer (4) as a part of the vehicle body upper surface; a friction layer (5) as a part of the lower surface of the vehicle body; the flexible resistance cover (6), the flexible resistance cover (6) is connected with the front ends of the upper layer (4) of the vehicle body and the friction layer (5) at least; in the run-up stage of the training process, the upper layer (4) of the vehicle body is lifted, the flexible resistance cover (6) can be lifted from the interior of the vehicle body along with the upper layer (4) of the vehicle body to serve as a windward side, and the air resistance of the steel frame snowmobile is increased by increasing the area of the windward side of the steel frame snowmobile; the friction layer (5) descends to be in contact with the ice surface along with the rising of the upper layer (4) of the vehicle body, and the friction force of the ice surface of the steel frame snowmobile is increased. The steel frame snowmobile with the resistance device improves the training load of athletes in the running-up stage, and improves the athletic ability of the athletes.

Description

Steel frame snow cart with resistance device

Technical Field

The present disclosure relates to a snowmobile with a drag plate.

Background

Steel frame snowmobiles (skeeleton) are mostly made of steel frames and glass fibers arranged on the steel frames as vehicle bodies. The main difference between the steel frame snowmobile race and the sled race is that the head is forward and prone to slide, so the steel frame snowmobile is also called a "pronation ski". The track used in the steel frame snowmobile racing is the same as the sleds and the snowmobiles, and shares a starting point with the snowmobiles. The track is 1200 to 1650 meters long and the fall is between 100 and 150 meters. In the starting stage of the steel frame snowmobile, an athlete places a steel blade on one side of the bottom of a vehicle body in an ice groove, a signal lamp is turned on and is pushed by the athlete to start in 30 seconds, and the running speed determines the sliding speed, so that the training in the running stage is particularly important.

Disclosure of Invention

The present disclosure provides a steel frame snowmobile with a resistance device, wherein at the run-up stage of the training process, a flexible resistance cover of the resistance device can be lifted from the inside of the vehicle body as the windward side, and the air resistance of the steel frame snowmobile is increased by increasing the frontal area of the steel frame snowmobile; and a friction layer of the resistance device is in contact with an ice surface, so that the ice surface friction of the steel frame snowmobile is increased. The goals of improving the training load of the athletes and improving the athletic ability in the run-up stage are achieved.

At least one embodiment of the present disclosure provides a steel frame snowmobile including a resistance device that provides resistance during a run-up phase, the resistance device comprising: an upper layer of the vehicle body as a part of an upper surface of the vehicle body; a friction layer as a part of the lower surface of the vehicle body; the flexible resistance cover is at least connected with the upper layer of the automobile body and the front end of the friction layer; the follow-up supporting device is arranged in the vehicle body and is connected with the bottom of the upper layer of the vehicle body and the top of the friction layer;

the servo supporting device raises the upper layer of the vehicle body in the run-up stage, the friction layer is lowered to be in contact with the ice surface so as to increase the friction force of the steel-frame snowmobile in the run-up stage, and the flexible resistance cover can be raised from the inside of the vehicle body as the windward side along with the raising of the upper layer of the vehicle body and the lowering of the friction layer so as to increase the windward air resistance of the steel-frame snowmobile;

in a prone sliding stage when a player bends over and lies on the upper layer of the vehicle body, the follow-up supporting device enables the upper layer of the vehicle body to descend to become a part of the upper surface of the vehicle body under the action of gravity of the player, the friction layer is separated from the ice surface and ascends to become a part of the lower surface of the vehicle body, and the flexible resistance cover can be accommodated into the vehicle body along with descending of the upper layer of the vehicle body and ascending of the friction layer.

In some examples, the flexible resistance mask is PVC coated cloth.

In some examples, the friction layer is a polyurethane material.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below.

FIG. 1 is a front view of a steel frame snowmobile with a resistance device as the flexible resistance cover is raised as provided by one embodiment of the present disclosure.

Fig. 2 is a schematic structural view of a servo support device according to an embodiment of the disclosure.

FIG. 3 is a front view of a steel frame snowmobile with a resistance device according to an embodiment of the present disclosure after storage.

Fig. 4 is a schematic structural view of a steel frame snowmobile with a resistance device according to an embodiment of the present disclosure.

FIG. 5 is another perspective view of the steel frame snowmobile with a resistance device shown in FIG. 4.

Detailed Description

The steel frame snowmobile in the prior art comprises a steel frame 2 and glass fibers arranged on the steel frame 2 and used as a vehicle body, wherein a steel blade 7 is arranged at the bottom of the vehicle body, and a buffer 9 is arranged on the side face of the vehicle body. Steel frame snowmobile start-up stage, the player puts into the ice bank with

steel sword

7, and 8 full power of hand handle are accelerated, close on the stage of slideing and slide on the jump car, slide through health control, and buffer 9 provides to collide the protection during.

1-5, the steel frame snowmobile of the present disclosure includes a resistance device that provides resistance during the run-up phase. The resistance device includes: an upper body layer 4 as a part of an upper surface of the body; a friction layer 5 as a part of the lower surface of the vehicle body; the flexible resistance cover 6 is connected with at least the front ends of the upper layer 4 and the friction layer 5 of the vehicle body; and the follow-up supporting device is arranged on the steel frame 2 in the vehicle body and is connected with the bottom of the upper layer 4 of the vehicle body and the top of the friction layer 5.

Referring to fig. 1, 4 and 5, the follow-up support device raises the upper layer 4 of the steel frame snowmobile in the run-up stage, lowers the friction layer 5 to be in contact with the ice surface to increase the friction force of the steel frame snowmobile in the run-up stage, and the flexible resistance cover 6 can be raised from the inside of the steel frame snowmobile as the upper layer 4 of the steel frame snowmobile rises and the friction layer 5 descends to serve as a windward surface to increase the windward air resistance of the steel frame snowmobile. Compare prior art steelframe snowmobile, this open steelframe snowmobile with resistance device effectively increases the motion resistance, and then improves the load of sportsman's training, promotes the motion ability.

As shown in fig. 3, in the prone skating stage in which the player lies on the upper layer 4 with bending over, the follower support device lowers the upper layer 4 to become a part of the upper surface of the body under the action of the gravity of the player, and the friction layer 5 rises off the ice surface to become a part of the lower surface of the body, so that the flexible resistance cover 6 can be accommodated in the body along with the lowering of the upper layer 4 and the rising of the friction layer 5.

The present disclosure does not limit the specific structure of the follow-up supporting device. As shown in fig. 1-3, the follow-up support device comprises at least two four-bar linkage 1 on the steel frame 2, and the four-bar linkage 1 comprises four side links 12 and two sliders 10. The two sliding blocks 10 are arranged on the steel frame 2 in a sliding mode. One end of two of the four side link rods 12 is respectively hinged with the two sliding blocks 10, and the other end is hinged with a support 11 at the bottom of the upper layer 4 of the vehicle body. One end of the other two of the four side link rods 12 is respectively hinged with the two sliding blocks 10, and the other end is hinged with a support 11 at the top of the friction layer 5. The sliders 10 of the two articulated four-bar mechanisms 1 are connected by a frame 13. One end of the spring 3 is connected with the sliding block 10, and the other end is connected with the steel frame 2.

In the run-up stage, downward pressure is not applied to the upper body layer 4, the upper body layer 4 is lifted up under the action of the spring 3, and the friction layer 5 is lowered to be in contact with the ice surface. When a player bends over and lies on the upper layer 4 of the body, the upper layer 4 of the body is stressed by the gravity of the player to move downwards, the two sliding blocks 10 of the four-bar linkage 1 move reversely, and then the two racks 13 are driven to move reversely, the extension spring 3 extends until the upper layer 4 of the body descends to become a part of the upper surface of the body, and the friction layer 5 is separated from the ice surface and ascends to become a part of the lower surface of the body. When the player leaves the upper layer 4 of the vehicle body, the spring 3 resets, the two sliders 10 of the four-bar linkage 1 move oppositely, the upper layer 4 of the vehicle body rises, and the friction layer 5 falls to be in contact with the ice surface.

Claims

1. A steel frame snowmobile comprising a resistance device that provides resistance during a run-up phase, the resistance device comprising: a vehicle body upper layer (4) as a part of the vehicle body upper surface; a friction layer (5) as a part of the lower surface of the vehicle body; the flexible resistance cover (6), the flexible resistance cover (6) is connected with the front ends of the upper layer (4) of the vehicle body and the friction layer (5) at least; the follow-up supporting device is arranged in the vehicle body and is connected with the bottom of the upper layer (4) of the vehicle body and the top of the friction layer (5);

the servo support device lifts an upper layer (4) of a vehicle body in a run-up stage, a friction layer (5) is lowered to be in contact with an ice surface to increase the friction force of the steel-frame snowmobile in the run-up stage, and a flexible resistance cover (6) can lift from the inside of the vehicle body as a windward side along with the lifting of the upper layer (4) of the vehicle body and the lowering of the friction layer (5) to increase the windward air resistance of the steel-frame snowmobile;

in a prone sliding stage when a player bends over and lies on the upper layer (4) of the automobile body, the servo supporting device enables the upper layer (4) of the automobile body to descend to be a part of the upper surface of the automobile body under the action of gravity of the player, the friction layer (5) is separated from an ice surface and ascends to be a part of the lower surface of the automobile body, and the flexible resistance cover (6) can be accommodated in the automobile body along with descending of the upper layer (4) of the automobile body and ascending of the friction layer (5).

2. The steel frame snowmobile of claim 1, wherein the flexible resistance cover (6) is PVC plastic coated cloth.

3. The steel frame snowmobile of claim 1, wherein the friction layer (5) is a polyurethane material.