CN201501365U - Device for protecting rear lower part of turnover vehicle - Google Patents

Abstract

A device for protecting the rear lower part of a turnover vehicle belongs to the field of special vehicle manufacturing and solves the problem that the fixed device for protecting the rear lower part can not suit the condition that vehicles performing special operation are required to run under harsh and complex road conditions on oil fields. The device comprises a cross beam, an arm plate, a fixing plate and bolt components; the cross beam and the arm plate are welded into a whole; the upper part of the fixing plate and a secondary beam are welded into a whole, and the middle part and the lower part of the fixing plate are connected with a main vehicle frame and the arm plate through the bolt components; a pin shaft is further arranged; round holes with the number of n are distributed on the circumference of the arm plate, and the angles among the round holes are a; round holes with the number of 2n+1 are distributed on the circumference on the fixing plate, and the angles among the round holes are Alpha/2; the n and a are both natural numbers, and the n is larger than one and nAlpha is smaller than 360 DEG; and the diameter of the two groups of round holes and that of the distributed circles are same.

Description

Convertible automobile rear lower protective device

Technical field

The utility model relates to special vehicle and makes the field, particularly relates to a kind of convertible automobile rear lower protective device.

Background technology

In " State Standard of the People's Republic of China ", GB11567.2-2001 " automobile and trailer rear lower requirement of shelter " regulation: for the vehicle that rear lower protective device state can not be adjusted, the lower edge terrain clearance on the whole width of rear lower protective device of vehicle should be not more than 550mm.The purpose of this standard is: the actv. protection can be provided when collision happens, prevent to bore and hit.

The vehicle that is used for highway fully can be carried out according to this standard, installs and fixes formula rear lower protective device.Yet job that requires special skills vehicle in oil field usually need carry out land locomotion at non-highways such as the very poor marsh of state of ground, Gobi desert.Such rear lower protective device has a strong impact on the traffic potential of vehicle.

The utility model content

The purpose of this utility model provides a kind of convertible automobile rear lower protective device, solve fixed type rear lower protective device and can not adapt to the usually needs problem of travelling of oil field job that requires special skills vehicle in abominable complicated road conditions, realize when vehicle during at rugged road surface land locomotion, can change terrain clearance by upset, to increase the departure angle of vehicle, satisfy harsher current requirement.

The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of convertible automobile rear lower protective device, comprise crossbeam, the arm plate, adapter plate, bolt assembly, crossbeam, the arm plate is welded as a whole, the top and the auxiliary girder of adapter plate are welded as a whole, the middle part and the bottom respectively with main car frame, the arm plate connects by bolt assembly, also comprise bearing pin, n circular hole by circle distribution arranged on the arm plate, angle between the circular hole respectively is α, 2n+1 circular hole by circle distribution arranged on the adapter plate, and the angle between the circular hole respectively is α/2, n, α is natural number and n＞1, n α＜360 °, the diameter of two groups of circular holes and distribution circle diameter thereof all equate.

Owing on arm plate and the adapter plate circumferential one group of circular hole is arranged respectively, and the circular hole quantity on the adapter plate is more than the circular hole quantity on the arm plate, thereby make plural installation site is arranged between arm plate and the adapter plate, can select suitable knock hole as required during installation, the state after determining to install.Because the diameter and the distribution circle diameter thereof of two groups of circular holes all equate, but distribution angle difference, angle on the arm plate between each circular hole is on the adapter plate between eachcircular hole 2 of angle times, thereby make whole circular holes and the part circular hole on the adapter plate installed on the postbrachium plate overlap, simultaneously the central axes of the distribution circle of two groups of circular holes.N on an arm plate circular hole is distributed in angle in the sector region of (n-1) α, be that n circular hole formed n-1 α angle, so (n-1) α＜360 °, at this moment the circular hole of the 2n+1 on adapter plate is distributed in the sector region that angle is n α, be that 2n+1 circular hole formed 2n α/2 jiao, so n α＜360 ° comprehensively draw n α＜360 °.Behind the dismounting jack bolt assembly, convertible automobile rear lower protective device can and be reselected knock hole around the bearing pin rotation, just can increase or reduce the terrain clearance of self, thereby changes the vehicle departure angle.Adjust back binding bolt assembly, whole convertible automobile rear lower protective device reaches desirable traffic potential or safety.

The beneficial effect that the utility model is had compared with the prior art is: 1, when vehicle during at road running, convertible automobile rear lower protective device satisfies the related request of GB, guarantees vehicle and pedestrian's safety; When the vehicle land locomotion, convertible automobile rear lower protective device is elevated, and guarantees that vehicle satisfies abominable complicated road conditions.2, crossbeam is welded by steel pipe and pipe cap, forms slick and sly surface by cambered surface and ellipsoid surface, can eliminate the potential safety hazard of sharp edge, reduces the danger of boring when hitting.

Description of drawings

Fig. 1 is a front view of the present utility model.

Fig. 2, Fig. 3 are lateral plans of the present utility model.

The specific embodiment

The utility model will be further described by embodiment below in conjunction with Figure of description:

As shown in Figure 1, a kind of convertible automobile rear lower protective device is welded into crossbeam 1,arm plate 2 main body of convertible automobile rear lower protectivedevice.Adapter plate 3 is positioned at the rear overhang end of vehicle afterbody, be mainly used in fixing convertible automobile rear lower protective device, the back protective device of general vehicle is installed in main car frame 6 afterbodys, and the oil field special-use vehicle has often increasedauxiliary girder 7, soadapter plate 3 also plays the effect that connects main car frame 6 andauxiliary girder 7 simultaneously.The top and theauxiliary girder 7 ofadapter plate 3 are welded as a whole, and the middle part is connected bybolt assembly 4 with main car frame 6,arm plate 2 respectively with the bottom.In this embodiment, crossbeam 1 is made up of pipe cap and steel pipe, because the surface of pipe cap, steel pipe is arc surface and ellipsoid surface, can eliminate the potential safety hazard of sharp edge, reduces the danger of boring when hitting.As shown in Figure 2, in this embodiment, the circular hole quantity by circle distribution on thearm plate 2 is 5, between angle respectively be 45 °, circular hole quantity by circle distribution on theadapter plate 3 is 11, between angle respectively be 22.5 °, thereby make that three different installation sites are arranged betweenarm plate 2 and the adapter plate 3.The assembly that is welded byarm plate 2, pipe cap and steel pipe is in meta in normal condition, and terrain clearance is 550mm, guarantees the driving safety of vehicle.Behind the dismountingjack bolt assembly 4,, select suitable knock hole again behind thebinding bolt assembly 4 when rotating up 22.5 ° around bearingpin 5, can increase terrain clearance 164mm, thereby increase the departure angle of vehicle greatly, make vehicle be able to pass through, reach desirable traffic potential in abominable road conditions.If adopt similar method to be rotated down then realize reverse effect, promptly, can reduce terrain clearance 132mm, thereby reduce the vehicle departure angle when being rotated down 22.5 ° around bearing pin 5.By changing the state of convertible automobile rear lower protective device, make vehicle be fit to highway and land locomotion, can realize crossing ability and safety preferably respectively.

In Fig. 1, another embodiment shown in Figure 3,6 circular holes by circle distribution are arranged on thearm plate 2, between angle respectively be 36 °, 13 circular holes by circle distribution are arranged on theadapter plate 3, between angle respectively be 18 °.When upwards or when being rotated down 18 °, increasing or reduce the terrain clearance of convertible automobile rear lower protective device equally, thereby change the vehicle departure angle, make vehicle be fit to highway and land locomotion around bearing pin 5.Compare the terrain clearance difference that just increases or reduce with last embodiment.

Claims (4)

1. convertible automobile rear lower protective device, comprise crossbeam (1), arm plate (2), adapter plate (3), bolt assembly (4), crossbeam (1), arm plate (2) is welded as a whole, the top of adapter plate (3) and auxiliary girder (7) are welded as a whole, the middle part and the bottom respectively with main car frame (6), arm plate (2) connects by bolt assembly (4), it is characterized in that: also comprise bearing pin (5), n circular hole by circle distribution arranged on the arm plate (2), angle between the circular hole respectively is α, 2n+1 circular hole by circle distribution arranged on the adapter plate (3), angle between the circular hole respectively is α/2, n, α is natural number and n＞1, n α＜360 °, the diameter of two groups of circular holes and distribution circle diameter thereof all equate.

2. convertible automobile rear lower protective device according to claim 1, it is characterized in that: crossbeam (1) is welded by steel pipe and pipe cap.

3. convertible automobile rear lower protective device according to claim 1, it is characterized in that: described natural number n=5, described natural number α=45 °, 5 circular holes by circle distribution are arranged on the arm plate (2), angle respectively is 45 ° between the circular hole, 11 circular holes by circle distribution are arranged on the adapter plate (3), and angle respectively is 22.5 ° between the circular hole.

4. convertible automobile rear lower protective device according to claim 1, it is characterized in that: described natural number n=6, described natural number α=36 °, 6 circular holes by circle distribution are arranged on the arm plate (2), angle respectively is 36 ° between the circular hole, 13 circular holes by circle distribution are arranged on the adapter plate (3), and angle respectively is 18 ° between the circular hole.

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