CN205589317U

CN205589317U - Foldable additional rear of a vehicle

Info

Publication number: CN205589317U
Application number: CN201520911441.7U
Authority: CN
Inventors: 马东升
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-17
Filing date: 2015-11-17
Publication date: 2016-09-21
Anticipated expiration: 2025-11-17

Abstract

The utility model provides a foldable additional rear of a vehicle mainly seals the gasbag by the softness, electronic telescopic support frame, and electronic pump, electronic admitting air (exhaust) valve, control driver constitutes. When the vehicle traveles in the urban district, pack up foldable additional rear of a vehicle, make things convenient for the vehicle operation. When the vehicle goes on highway, can pass through automatic control or manual control mode, open foldable additional rear of a vehicle to be full of the air for the soft gasbag that seals. Like this, the additional rear of a vehicle will form a streamlined whole with original rear of a vehicle to vehicle tail portion's pressure drag can be reduced, the fuel is saved.

Description

Foldaway attached add the tailstock

Technical field

This utility model relates to the reduction of the resistance of motion that the tailstock negative pressuren zone of motor vehicles causes.

Background technology

Motor vehicles are in the process of moving, owing to its racing body or planar car body structure suddenly disappear at the tailstock, originally the laminar-flow air flowed backward along car body surface becomes turbulent flow at the tailstock, and forms a negative pressuren zone, the i.e. afterbody air pressure atmospheric pressure less than surrounding at afterbody.Particularly oversize vehicle, such as truck, towed vehicle, long-distance bus, touring car etc., its afterbody negative pressuren zone is bigger.Negative pressuren zone produces a suction backward at the tailstock, stops vehicle forward.Further, along with the increase of speed, negative pressuren zone resistance (pressure drag) can be increased dramatically, and then consume more energy.

In order to reduce the impact of negative pressuren zone, most of sport cars and some cars have carried out aerodynamic optimization design to its afterbody, achieve good effect.But, due to a variety of causes, these optimize structure and are not promoted on other type of vehicle.

According to air dynamic behaviour, preferable fairing should have a tapered long tail, enables air to continue not separate along Surface runoff.But, for oversize vehicle, preferable afterbody moulding does not often have any practical use, can only be one section of considerably long empty tail, not only can reduce its transport capacity, and can have a strong impact on its handling.

Additionally, for middle-size and small-size vehicle, such as motion jeep (SUV), multifunctional domestic car (MPV), motor van (VAN) etc., the impact of its afterbody negative pressuren zone is the biggest.If improving the afterbody moulding of these vehicles, often affect its handling and good looking appearance.Thus, although many countries have carried out substantial amounts of Theoretical Calculation and experimentation, there is presently no more satisfactory tailstock improvement project.

Summary of the invention

This utility model design one is foldaway attached adds the tailstock, mainly by soft closed airbag, electric telescopic bracing frame, electric inflating pump, electronic air inlet (aerofluxus) valve, controls driver composition.Wherein, soft closed airbag is air tight, can bear certain air pressure, and its outer surface should be smooth, to reduce in motor process, and the skin-friction force (see Fig. 4) that air draught causes.

The foldaway attached over all Integration bag adding the tailstock should be mounted on the correct position of the tailstock.When it does not works, the size after folding and being taken up space, shape and function effect to original tailstock are little.

Open the foldaway attached tailstock that adds, and after being full of air to soft closed airbag, the additional tailstock will form a streamlined entirety (see Figure 1B) with original tailstock.The change of tailstock global shape can improve tail air dynamics, thus weakens the impact of vehicle tail negative pressuren zone, reduces the pressure drag of the tailstock.

The foldaway attached length adding the tailstock and planform, should match with the tailstock structure of vehicle, typically immobilize.Meet the daily manipulation request of vehicle and improving between tailstock air dynamic behaviour, obtain balance.

But, in order to meet the needs of some vehicle actual motion, the foldaway attached size dimension (length) that add the tailstock supporting with it and shape can be designed to the optimization structure that dynamic classification changes with speed height change, in order to reduce the pressure drag of vehicle tail further.

Under normal circumstances, vehicle is when urban district travels, or when low speed moves, or when turning, can be by controlling electric exhausting valve, and electric telescopic bracing frame, pack up and foldaway attached add the tailstock, reduce the space that vehicle takies, facilitate driver that vehicle is carried out various operation.

When vehicle is run at high speed on a highway, electric telescopic bracing frame, electronic air intake valve, and electric inflating pump can be controlled by automatic or manual mode, open the foldaway attached tailstock that adds, and be full of air to soft closed airbag.Thus reduce the pressure drag of vehicle tail, save fuel oil.

Accompanying drawing explanation

Figure 1A is oversize vehicle (truck, container-trailer, long-distance bus, touring car etc.) tail wind schematic diagram.

In figure: 1-headstock；2-top stream；3-bottom airflow；4-two sidewind；The afterbody turbulent flow that 5-top stream causes；The afterbody turbulent flow that 6-bottom airflow causes；The afterbody turbulent flow that 7-two sidewind causes；8-vehicle heading.

Figure 1B is that oversize vehicle is installed and foldaway attached added the tail wind schematic diagram after the tailstock.

In figure: 1-headstock；2-top stream；3-bottom airflow；4-two sidewind；5-additional tailstock upper air；6-additional tailstock lower stream of airflow；The 7-additional tailstock two sidewind；8-vehicle heading.

Fig. 2 A is medium sized vehicle (jeep, MPV (Multi-Purpose Vehicle), motor van, commercial car etc.) tail wind schematic diagram.

Fig. 2 B is that medium sized vehicle is installed and foldaway attached added the tail wind schematic diagram after the tailstock.

Fig. 3 A is dilly (car etc.) tail wind schematic diagram.

In figure: 1-headstock；2-top stream；3-bottom airflow；4-two sidewind；5-afterbody turbulent flow；8-vehicle heading.

Fig. 3 B is that dilly is installed and foldaway attached added the tail wind schematic diagram after the tailstock.

Fig. 4 is the foldaway attached structural representation adding the tailstock.

In figure: 9-softness closed airbag (smooth outer surface)；10-fixed border；11-electric telescopic bracing frame；12-electronic air inlet (aerofluxus) valve；13-inflated hose；14-electric inflating pump；15-controls driver.

Detailed description of the invention

The foldaway attached tailstock that adds should be optimized design according to the concrete structure of dissimilar vehicle tail, manufactures, and installs, debugging, and controls；Its over all Integration wraps in the installation fixing position of the tailstock and puts, it should match with the functional module (rear window, taillight, car plate, luggage case opens the door, rear bumper etc.) of original tailstock.

The foldaway attached control driver adding the tailstock, it should mutually integrated with the control system of vehicle itself, it is simple to realize Based Intelligent Control, or driver operates control whenever and wherever possible.

Foldaway attached add the tailstock should dissimilar according to vehicle, manufacture and design for building block product, it is simple to keep in repair and change.Additionally, the foldaway attached tailstock that adds should use the material manufacture of Portable durable as far as possible, to alleviate its weight, increase its service life.

Claims

1. one kind foldaway attached adds the tailstock, it is characterised in that: include soft closed airbag, electric telescopic bracing frame, electric inflating pump, electronic intake and exhaust valve, control driver；These parts are connected with each other (see Fig. 4) with rational method, constitute an over all Integration bag；The described foldaway attached over all Integration bag adding the tailstock is fixed on original tailstock；The described foldaway attached tailstock that adds is when packing up, shared reduced space, thus facilitates vehicle operating.

One the most according to claim 1 is foldaway attached adds the tailstock, it is characterized in that: when electric telescopic bracing frame launches, when soft closed airbag is full of air, the described foldaway attached tailstock that adds forms a streamlined entirety with original tailstock, thus reduces the pressure drag of vehicle tail.

One the most according to claim 1 is foldaway attached adds the tailstock, it is characterised in that: the described foldaway attached control driver adding the tailstock is mutually integrated with the control system of vehicle itself, it is simple to realize Based Intelligent Control, or driver operates control whenever and wherever possible.

One the most according to claim 1 is foldaway attached adds the tailstock, it is characterised in that: soft closed airbag has smooth outer surface, in order to reduce the skin-friction force that air draught causes.

One the most according to claim 1 is foldaway attached adds the tailstock, it is characterised in that: the described foldaway attached tailstock that adds is when opening, and its length and shape match with the concrete tailstock structure of vehicle, and immobilize, thus simplify daily manipulation.

One the most according to claim 1 is foldaway attached adds the tailstock, it is characterized in that: the described foldaway attached tailstock that adds is when opening, its length and shape match with the concrete tailstock structure of vehicle, and with speed height change, dynamic classification changes, in order to reduce the pressure drag of vehicle tail further.