CN109515133B

CN109515133B - New forms of energy commodity circulation car, carriage and side door assembly thereof

Info

Publication number: CN109515133B
Application number: CN201811635391.9A
Authority: CN
Inventors: 许骁福; 叶忠; 骆加云
Original assignee: Hangzhou Polycore Composite Material Co ltd
Current assignee: Hangzhou Polycore Composite Material Co ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2024-03-15
Anticipated expiration: 2038-12-29
Also published as: CN109515133A

Abstract

The invention discloses a side door assembly of a new energy logistics vehicle, which comprises a connecting piece, a lower side beam, a first component plate, a second component plate and side door frame components, wherein the first component plate and the second component plate are respectively fixed on two sides of the side door frame components, and the side door frame components are provided with side door components; the side door frame assembly comprises a left side door upright rod and a right side door upright rod, a side door frame cross beam connected to the upper ends of the two side door upright rods, and the upper part of the side door frame cross beam is inserted into a first connecting groove of the connecting piece and fixed through a fastener; the upper end of side door pole setting is through side door angle sign indicating number and side door frame crossbeam fixed connection, and the lower extreme of side door pole setting inserts in the second draw-in groove of boundary beam and is fixed through the fastener. The lower side beam of the side door, which is connected with the underframe, is of an integrated structure, and the side door frame assembly, the upper connecting piece of the side plate of the carriage and the lower side beam are combined together, so that the overall structural strength of the carriage and the side door is improved.

Description

New forms of energy commodity circulation car, carriage and side door assembly thereof

Technical Field

The invention belongs to the technical field of vans and new energy automobiles, and particularly relates to a new energy logistics vehicle, a carriage and a side door assembly thereof.

Background

The van is mainly used for transporting various articles in a full-sealing way, and special types of van can also be used for transporting chemical dangerous articles. The van vehicle has the advantages of flexibility, convenient operation, high efficiency in work, large transportation capacity, full utilization of space, safety, reliability and the like in the transportation process. The traditional van is a fuel vehicle, has the advantages of sufficient power, long driving mileage and convenient oiling, so that the carriage is generally manufactured by adopting an iron corrugated plate, and the carriage has heavy weight and cannot be used on an electric new energy automobile. In addition, the energy-saving and environment-friendly requirements of the cities in various places are higher and higher at present, and more new energy logistics vehicles are needed in the express logistics industry to meet the use requirements of the new energy logistics vehicles.

The Chinese patent with the application publication number of CN106394706A discloses a logistics vehicle and a carriage thereof, wherein the carriage of the logistics vehicle comprises a carriage body, the carriage body comprises a carriage plate assembly, a chassis assembly, a skirt edge assembly and a rear door plate assembly, the carriage plate assembly is arranged above the chassis assembly, the skirt edge assembly is arranged below the chassis assembly, and the rear door plate assembly is connected with the carriage plate assembly, the chassis assembly and the skirt edge assembly; the carriage plate assembly comprises a top plate, a front plate, a first side plate and a second side plate, wherein the first side plate, the front plate and the second side plate are connected in sequence and then are respectively connected with 3 sides of the top plate through first connecting pieces; the first connecting piece comprises a first connecting groove and a second connecting groove which extend in the length direction of the first connecting piece, the groove depth directions of the first connecting groove and the second connecting groove are mutually perpendicular, and the first connecting groove and the second connecting groove are used for being matched with different plates; a protection plate is arranged above the underframe assembly and corresponds to the inner side of the carriage plate assembly, and comprises a protection plate main body which is used for being attached to the front plate, the first side plate or the second side plate, and the protection plate main body is used for being connected with the front plate, the first side plate or the second side plate; the lower end of the protection plate main body is vertically bent inwards to form a protection plate flanging part which is used for being attached to the upper surface of the underframe assembly, and the protection plate flanging part is used for being connected with the underframe assembly; connecting strips are arranged between the outer sides of the front plate, the first side plate or the second side plate and the corresponding outer side edges of the underframe assembly, and are provided with 2 rows of connecting through holes, namely a first connecting strip through hole for being matched with the outer sides of the front plate, the first side plate or the second side plate and a second connecting through hole for being matched with the outer side edges of the underframe assembly; the skirt edge assembly comprises skirt edge plates which are respectively arranged at two sides below the underframe assembly; the front end of the skirt board is provided with an end connecting piece, and a clamping groove for matching with the skirt board is formed in the end connecting piece; the middle part of the skirt board is vertically provided with a connecting rod, and the upper end of the connecting rod is used for being connected with the lower part of the underframe assembly; the rear door plate assembly comprises a rear door frame assembly and a rear door assembly, the rear door frame assembly is used for being matched with the carriage plate assembly, the underframe assembly and the skirt assembly at the same time, and the rear door assembly is arranged at the rear door frame assembly; the rear door frame assembly comprises 2 rear door frame upright posts which are vertically arranged, the upper ends of the 2 rear door frame upright posts are horizontally provided with rear door frame beams, the lower parts of the 2 rear door frame upright posts are provided with rear baffle assemblies, and the rear door assemblies are arranged between the rear door frame beams and the rear baffle assemblies; the rear door frame upright post comprises an upright post main body, wherein the upright post main body is bent by adopting a plate to form a hollow L shape, and comprises a main body part and a clamping groove part perpendicular to the main body part; the clamping groove part at the rear door assembly is used for being matched with the corresponding side plate at the carriage plate assembly, and the clamping groove part at the rear baffle assembly is used for being matched with the skirt plate; the rear door frame beam comprises a beam main body, a supporting plate is arranged on one side of the beam main body, which is matched with the carriage plate assembly, a second rain shield is arranged at the top of the beam main body, and the second rain shield extends inwards to form a top plate clamping groove which is matched with the top plate at the carriage plate assembly together with the supporting plate.

In the prior art, the new energy logistics vehicle still has some defects, including: 1) The carriage side plate and the underframe are connected through the connecting strip arranged outside the carriage, so that the connecting strength is low, the structure is not firm enough, the connecting strip with one side of the side door connected with the underframe is divided into three sections, and the integral structural strength of the carriage and the connecting strength of the side door frame assembly, the carriage side plate and the underframe are affected; 2) The carriage underframe is welded into a whole by adopting I-steel, so that the carriage underframe has large volume and heavy weight, is very inconvenient to transport, store and install, and is required to be customized and processed in underframe manufacturers aiming at carriages with different sizes, so that the assembly difficulty of the assembly factories is high and the efficiency is low; 3) The parts of the carriage rear door assembly are connected by welding or fastening pieces, the assembly is inconvenient and not firm enough, the rear door frame upright post main body is of a hollow L shape formed by bending plates, the rear door frame upright post main body comprises a main body part and a clamping groove part perpendicular to the main body part, reinforcing plates are welded between the clamping groove parts, and the internal welding difficulty is high; 4) The skirt board is fixedly arranged on the side edge of the underframe of the new energy logistics vehicle as a whole, when the logistics vehicle is overhauled, the whole vehicle needs to be drilled into the bottom of the vehicle or jacked up, the operation is inconvenient, and particularly when the battery is placed on the chassis of the new energy logistics vehicle, the battery is very inconvenient to replace and overhaul; 5) The carriage top plate is made of a whole composite plate, and the middle collapse is easy to occur due to the large area and the horizontal suspended placement, so that the carriage strength is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a new energy logistics vehicle, a carriage and a side door assembly thereof, wherein one side of the carriage with the side door is connected with a lower side beam of an integrated structure adopted by an underframe, and a side door frame assembly is combined with an upper connecting piece of a side plate of the carriage and the lower side beam together so as to improve the overall structural strength of the carriage and the side door.

In order to achieve the technical purpose, the invention provides the following technical scheme: the side door assembly of the new energy logistics vehicle comprises a connecting piece, a lower edge beam, a first component plate, a second component plate and a side door frame component, wherein the upper parts of the first component plate and the second component plate are connected with an upper panel of a carriage through the connecting piece, and the lower parts of the first component plate and the second component plate are connected with a chassis of the carriage through the lower edge beam; the first assembly plate and the second assembly plate are respectively fixed on two sides of the side door frame assembly, and the side door frame assembly is provided with a side door assembly; the side door frame assembly comprises a left side door upright rod and a right side door upright rod, a side door frame cross beam connected to the upper ends of the two side door upright rods, and the upper part of the side door frame cross beam is inserted into a first connecting groove of the connecting piece and fixed through a fastener; the upper end of side door pole setting is through side door angle sign indicating number and side door frame crossbeam fixed connection, and the lower extreme of side door pole setting inserts in the second draw-in groove of boundary beam and is fixed through the fastener. Like this, the roof side rail that one side that the carriage had the side door and chassis connection adopts integral type structure, combines the last connecting piece and the roof side rail of side door frame subassembly and carriage curb plate together to improve the overall structure intensity of carriage and side door. The lower edge beam in the prior art is formed by splicing three parts, is unstable, is integrally formed, and has higher stability; in addition, the side door upright posts are spliced with the inner wall and the outer wall of the lower edge beam in a size fit manner, so that the side door upright posts are convenient to install and simple in structure.

As preferable: the rocker is cut with an opening at a location that mates with the side door frame assembly. Therefore, the condition that the side wall of the second clamping groove of the lower edge beam protrudes from the panel of the underframe to form a threshold can be avoided, and goods can be unchanged in and out.

As preferable: the side door frame beam is made of tubular sectional materials and comprises a side door frame beam main body and a connecting pipe part for a plug-in connector; the thickness of the side door frame beam main body is larger than that of the connecting pipe part so as to form a step at the joint position of the side door frame beam main body and the connecting pipe part; the cross section structure of the side door frame beam main body is L-shaped, and the thickness of the lower part of the side door frame beam main body is larger than that of the upper part of the side door frame beam main body. Thus, the door frame structure can be firmer, and the door frame is deeper, so that the door plate can be sealed and installed more firmly.

As preferable: the side door upright rod is made of tubular sectional materials and comprises a side door upright rod main body and an inserting part for inserting the first assembly plate or the second assembly plate, wherein an upright rod clamping groove for inserting the first assembly plate or the second assembly plate is formed in the inserting part; the thickness of the side door upright rod main body is smaller than that of the plug-in part, so that a step is formed at the combined position of the side door upright rod main body and the plug-in part; the cross-sectional structure of side door pole setting main part is L shape, and the thickness of side door pole setting main part lower part is greater than the thickness of its upper portion. Thus, the door frame structure can be firmer, and the door frame is deeper, so that the door plate can be sealed and installed more firmly.

As preferable: the lower side beam is made of an aluminum profile, the cross section structure of the lower side beam profile comprises a vertical base plate part, a first clamping plate part vertical to the base plate part is formed in the middle of the base plate part in an inward extending mode, a second clamping plate part vertical to the base plate part is formed in the lower part of the base plate part in an inward extending mode, a first clamping groove for inserting a chassis cross beam is formed between the first clamping plate part and the second clamping plate part, the first clamping plate part extends in a direction away from the second clamping plate part to form a first connecting plate part, an installation part is formed in the upper part of the first connecting plate part in a direction close to the base plate part in an upward extending mode, a third clamping plate part is formed in the installation part in a side close to the base plate part in a upward extending mode, and a second clamping groove for inserting a carriage side plate is formed between the third clamping plate part and the base plate part; the upper part of the first connecting plate part extends to a direction away from the substrate part to form a first pressing plate part, and a third clamping groove for clamping the chassis panel is formed between the first pressing plate part and the first connecting plate part; the end part of the chassis cross beam is inserted into the first clamping groove and is fixedly connected with the first clamping plate part and/or the second clamping plate part through a fastener, the side edge of the chassis panel is inserted into the third clamping groove and is fixedly connected with the first pressing plate part through a fastener, and the lower side edge of the carriage side plate is inserted into the second clamping groove and is fixedly connected with the third clamping plate part and/or the substrate part through a fastener. Like this, the roof side rail of aluminium section is convenient for process, and roof side rail integrated into one piece, its stability is stronger.

As preferable: the substrate part of the lower side beam is cut with a fifth notch at a position matched with the side door frame assembly, the third clamping plate part of the lower side beam is cut with a sixth notch at a position matched with the side door frame assembly, and the lower end of the side door upright rod is inserted into the second clamping groove of the lower side beam through the fifth notch and the sixth notch and is fixedly connected with the third clamping plate part and/or the substrate part through a fastener. Thus, the side door upright rod and the lower edge beam are convenient to assemble.

As preferable: the connecting piece, the lower edge beam, the side door upright posts and the side door frame cross beam are all made of aluminum profiles. Thus, the connecting piece, the lower edge beam, the side door upright rod and the side door frame cross beam which are made of the aluminum profile are easy to process, and the weight of the automobile body is reduced.

As preferable: the side door corner bracket is made of a section bar with an L-shaped cross section, and a plurality of mounting holes for mounting fasteners are formed in the side door corner bracket; the inner side of side door angle sign indicating number has seted up a plurality of through-holes, is equipped with the strengthening rib between the adjacent through-hole, and the mounting hole is seted up to the tip of every strengthening rib. Therefore, the corner connector facilitates the fixed connection of the side door upright rod and the side door frame cross beam. The corner connector is provided with a through hole, so that raw materials can be saved; the reinforcing ribs can enhance the rigidity of the corner brace.

The utility model provides a carriage of new forms of energy commodity circulation car, includes the carriage body, and the carriage body includes railway carriage or compartment board assembly, chassis, shirt rim assembly and back door assembly, characterized by: the side door assembly of the new energy logistics vehicle comprises the side door assembly of the new energy logistics vehicle.

A new energy logistics vehicle is characterized in that: the side door assembly of the new energy logistics vehicle comprises the side door assembly of the new energy logistics vehicle.

In summary, the invention has the following beneficial effects:

1. the side door assembly, the upper connecting piece of the side plate of the carriage and the lower edge beam are combined together by adopting an integrated structure, so that the overall structural strength of the carriage and the side door is improved;

2. the side door upright rod is spliced with the inner wall and the outer wall of the lower edge beam and matched in size, so that the side door upright rod is convenient to install and simple in structure.

Drawings

Fig. 1 is a perspective view of a cabin body of the present invention;

fig. 2 is a perspective view of another view of the cabin body of the present invention;

FIG. 3 is an exploded view of the cabin body of the present invention;

FIG. 4 is an exploded view of the deck assembly and chassis of the present invention;

FIG. 5 is a schematic view of a connector according to the present invention;

FIG. 6 is a schematic cross-sectional view of a connector according to the present invention;

FIG. 7 is a schematic view of the structure of the chassis of the present invention;

FIG. 8 is a schematic illustration of the assembly of the cross member and the side member of the present invention;

FIG. 9 is a schematic cross-sectional view of a cross-beam of the present invention;

FIG. 10 is a schematic cross-sectional view of a side rail of the present invention;

FIG. 11 is a schematic illustration of the assembly of the right angle reinforcement of the present invention with stringers and cross members;

FIG. 12 is a schematic structural view of a right angle stiffener of the present invention;

FIG. 13 is a schematic cross-sectional view of the first reinforcement of the present invention assembled with a cross-beam;

FIG. 14 is a schematic cross-sectional view of a first reinforcement member of the present invention;

FIG. 15 is a schematic view of an assembly of a first reinforcement member with a stringer and a cross member of the present invention;

FIG. 16 is a schematic view of another embodiment of the first reinforcement and cross beam assembly of the present invention;

FIG. 17 is a schematic view of the assembly of a second reinforcement member with a stringer of the present invention;

FIG. 18 is a schematic cross-sectional view of a second reinforcement member of the present invention;

FIG. 19 is an exploded view of the side door assembly of the present invention;

FIG. 20 is a schematic view of the assembly of the rocker and side frame assembly and connector of the present invention;

FIG. 21 is a schematic cross-sectional view of a rocker in accordance with the present invention;

FIG. 22 is a schematic view of the assembly of the rocker with side panels and cross beams of the present invention;

FIG. 23 is a schematic cross-sectional view of another embodiment of a rocker of the present invention;

FIG. 24 is a schematic cross-sectional view of a side door frame cross beam of the present invention;

FIG. 25 is a schematic view of the assembled side frame rail and connector of the present invention;

FIG. 26 is a schematic cross-sectional view of a side door riser of the present invention;

FIG. 27 is a schematic view of a side door corner brace according to the present invention;

FIG. 28 is a schematic view of the assembly of the rocker and side door uprights of the present invention;

FIG. 29 is a schematic view of the structure of the rear door assembly of the present invention;

FIG. 30 is a schematic view of the structure of the rear door frame pole of the present invention;

FIG. 31 is a schematic view of the structure of the rear door frame rail, connector and rear door frame pole of the present invention connected by a first bracket;

FIG. 32 is an enlarged view of a portion of FIG. 31 at A;

FIG. 33 is a schematic diagram of a first angle code according to the present invention;

FIG. 34 is a schematic cross-sectional view of a rear door frame cross member and a rear door frame upright of the present invention connected by a first angle;

FIG. 35 is a schematic view of the structure of the rear door frame rail of the present invention;

FIG. 36 is a schematic view of the rear door frame rail and weather shield assembly of the present invention;

FIG. 37 is a schematic view of the structure of the rocker, tailgate cross member, and rail of the present invention connected by a second gusset;

FIG. 38 is an enlarged schematic view of a portion of FIG. 37 at B;

FIG. 39 is a schematic cross-sectional view of the connection of the rocker, tailgate cross member and back door frame upright of the present invention;

FIG. 40 is a schematic view of the structure of the tailgate beam of the present invention;

FIG. 41 is a schematic view of a second corner key according to the present invention;

FIG. 42 is a schematic view of the assembly of a second bracket with a back door frame pole of the present invention;

FIG. 43 is a schematic view of the assembly of the back door frame uprights and the back door frame cross member of the present invention by a third corner bracket;

FIG. 44 is an enlarged view of a portion at C in FIG. 43;

FIG. 45 is a schematic view of the structure of the tailgate sill of the present invention;

FIG. 46 is a schematic diagram of a third code according to the present invention;

FIG. 47 is a schematic cross-sectional view of the rear door frame pole and the tailgate sill of the present invention connected by a third gusset;

FIG. 48 is a schematic view of the attachment of the chassis to the skirt assembly of the present invention;

FIG. 49 is a schematic view of a profile of a skirt hinge of the present invention;

FIG. 50 is a schematic view of a skirt hinge of the present invention;

FIG. 51 is a schematic view of the construction of the skirt hinge of the present invention incorporating a third panel portion in the profile;

FIG. 52 is a schematic view of another embodiment of a skirt hinge of the present invention;

FIG. 53 is a schematic view of the structure of the hem of the skirt panel of the invention;

FIG. 54 is a schematic view of the attachment of a skirt panel edge wrap to a skirt panel in accordance with the present invention;

FIG. 55 is a schematic view of the structure of the stent of the present invention;

Fig. 56 is a schematic structural view of a fender according to the invention;

fig. 57 is a schematic structural view of the roof of the cabin body of the present invention.

Reference numerals: 1. a cabin body; 2. a carriage plate assembly; 20. a top plate; 201. a concave groove; 21. a front plate; 22. a first side plate; 23. a second side plate; 230. a first component plate; 231. a side door frame assembly; 2310. a side door assembly; 232. a second component plate; 2311. a side door upright post; 2312. a side door frame cross beam; 2315. a seventh incision; 23121. a side door frame beam body; 23122. a connecting pipe section; 23111. a side door pole body; 23112. a vertical rod clamping groove; 3. a rear door assembly; 30. a rear door frame assembly; 300. a rear door frame upright post; 301. a rear door frame cross beam; 3010. a first body portion; 3011. a fourth connecting portion; 3012. a support part; 3013. a support plate portion; 3014. a first incision; 3000. a pole body; 3001. a clamping groove; 3002. a fourth cutout; 302. a tailgate cross member; 303. a tailgate assembly; 3033. a second body portion; 3034. a rear platen portion; 3034. a rear platen portion; 3035. a second incision; 3036. a third body portion; 3037. a horizontal pipe section; 3038. a third incision; 3031. a tailgate sill; 3032. a rear baffle; 31. a rear door assembly; 4. a chassis; 41. a chassis panel; 410. a manhole; 411. a manhole cover plate; 400. a longitudinal beam; 4000. a second vertical plate portion; 4001. a second flat plate portion; 4002. a second convex plate; 4003. the second limiting bulge; 401. a cross beam; 4010. a first vertical plate portion; 4011. a first flat plate portion; 4012. a first convex plate; 4013. the first limiting protrusion; 4014. a through hole; 5. a skirt assembly; 50. a skirt panel; 500. a front skirt panel; 501. a rear skirt plate; 502. the skirt board is covered with edges; 5020. a third reinforcing plate; 5021. a limiting plate; 51. a skirt hinge; 510. a first hinge arm; 511. a second hinge arm; 514. a hinge rotating shaft; 6. a connecting piece; 60. a first connection groove; 600. a first trench; 601. a first rivet hole; 61. a second connecting groove; 610. a second trench; 611. a second rivet hole; 7. a first reinforcement; 70. a first reinforcing riser portion; 71. a first reinforcing flat plate portion; 710. a first chute; 8. right-angle reinforcement; 80. a first reinforcing plate portion; 81. a second reinforcing plate portion; 9. a second reinforcement; 90. a second reinforcing riser portion; 91. a second reinforcing flat plate portion; 910. a second chute; 10. a front cross member; 11. a positioning strip; 110. positioning holes; 12. a lower edge beam; 120. a substrate portion; 1200. a fifth incision; 121. a first clamping plate part; 122. a second clamping plate part; 123. a first clamping groove; 124. a first connection portion; 125. a first platen portion; 1250. a strip-shaped groove; 126. a mounting part; 127. a third clamping plate part; 1270. a sixth incision; 128. a second clamping groove; 129. a third clamping groove; 130. a second connecting portion; 131. a third connecting portion; 132. a sixth connecting plate portion; 14. a side door corner brace; 140. a through hole; 141. reinforcing ribs; 142. a mounting hole; 15. a first angle code; 150. a first code body; 151. a first connection plate portion; 152. a first caulking groove; 16. a rain shield; 160. an upper panel clamping groove; 161. a rain shielding part; 17. a second corner brace; 170. the second corner connector body; 171. a second connection plate portion; 172. a second caulking groove; 173. a fourth connecting plate portion; 174. a fifth connecting plate portion; 18. a third angle code; 180. a third code body; 181. a third connecting plate portion; 182. a third caulking groove; 19. a section bar; 190. a first plate portion; 191. a second plate portion; 192. a sleeve portion; 1921. a shaft hole; 1922. a transition plate portion; 1923. a limit step; 193. a third plate portion; 1931. a slot; 25. a bracket; 250. a first connecting plate; 251. a second connecting plate; 252. chamfering; 26. a protection plate; 260. a shield main body; 261. and a protection plate flanging part.

Detailed Description

The invention is further described with reference to the accompanying drawings.

The embodiment discloses a new forms of energy commodity circulation car, and as shown in fig. 1, 2 and 3, it includes carriage body 1, and carriage body 1 includes railway carriage or compartment board assembly 2, back door assembly 3, chassis 4 and shirt rim assembly 5. Wherein, carriage plate assembly 2, back door assembly 3 and shirt rim assembly 5 all are connected with chassis 4, and carriage plate assembly 2 and back door assembly 3 locate chassis 4 top and form carriage portion jointly, and shirt rim assembly 5 locates around chassis 4.

As shown in fig. 4, the car plate assembly 2 includes a top plate 20, a front plate 21, a first side plate 22 and a second side plate 23, and the first side plate 22, the front plate 21 and the second side plate 23 are connected to three sides of the top plate 20 after being connected; the roof panel 20 is used to form an upper panel of the cabin body 1, the front panel 21 is used to form a front panel of the cabin body 1, and the first side panel 22 and the second side panel 23 are used to form left and right panels of the cabin, respectively. The first side plate 22, the front plate 21 and the second side plate 23 are fixedly connected with three sides of the top plate 20 through connecting pieces 6 respectively, and the first side plate 22 and the second side plate 23 are fixedly connected with the left side and the right side of the front plate 21 through the connecting pieces 6 respectively.

As shown in fig. 5 and 6, the connecting member 6 is a long bar-shaped profile, and the connecting member 6 includes a first connecting groove 60 and a second connecting groove 61 extending in the longitudinal direction of the profile, and the groove depth directions of the first connecting groove 60 and the second connecting groove 61 are perpendicular to each other. The first connecting groove 60 and the second connecting groove 61 are used for being matched with different boards, and a layer of sealant is arranged between the first connecting groove 60 and the second connecting groove 61 and the corresponding board. The first groove 600 and the second groove 610 are respectively extended at the outer groove walls of the first connecting groove 60 and the second connecting groove 61 along the length direction of the profile, the top plate 20, the front plate 21, the first side plate 22 and/or the second side plate 23 are inserted into the first connecting groove 60 and/or the second connecting groove 61 of the connecting piece 6 and the outer sides are fixedly connected through gluing, and the first groove 600 and the second groove 610 can increase the surface area and the roughness of the side walls of the profile, so that the gluing strength and the sealing effect of the sealant can be increased; the inner side groove walls of the first and second connection grooves 60 and 61 are respectively provided with a plurality of first and second rivet holes 601 and 611 at intervals along the length direction of the profile, and the top plate 20, the front plate 21, the first and second side plates 22 and 23 are inserted into the first and/or second connection grooves 60 and 61 of the connection member 6 and are fixedly connected with each other by rivets on the inner side, so that the corresponding plates can be disposed at the first or second connection grooves 60 and 61 by rivets, thereby being capable of conveniently and fixedly connecting the corresponding plates with the connection member 6. Through this kind of connected mode, not only simplified connection structure greatly, convenient operation, structural strength is higher moreover.

In this embodiment, the connecting member 6 is an aluminum profile.

As shown in fig. 3, a chassis panel 41 is provided above the chassis 4, an access hole 410 is provided in the chassis panel 41, and an access hole cover 411 is provided in the access hole 410. Wherein the chassis panel 41 is a glass fiber reinforced polypropylene panel.

As shown in fig. 7 and 8, the chassis 4 includes two longitudinal beams 400 extending longitudinally, a plurality of transverse beams 401 extending transversely are distributed on the two longitudinal beams 400 along the length direction of the longitudinal beams, the two longitudinal beams 400 are parallel to each other and have two ends aligned respectively, the plurality of transverse beams 401 are parallel to each other and have two ends aligned respectively, and the plurality of transverse beams 401 are detachably connected with the two longitudinal beams 400 to form the chassis 4. The front cross member 10 is fixed to the front ends of the two side members 400 by fasteners, and the tailgate cross member 302 is fixed to the rear ends by fasteners. The beams 401 are arranged along the length direction of the longitudinal beam 400 and are positioned by two positioning strips 11, the positioning strips 11 are provided with a plurality of positioning holes 110 at intervals in a laser drilling mode, through holes 4014 matched with the positioning holes 110 are formed in two sides of each beam 401, and the beams 401 are positioned and fixed on the positioning strips 11 through fasteners penetrating through the through holes 4014 and the corresponding positioning holes 110. The positioning strip 11 is adopted for carrying out installation reference positioning, positioning is accurate, assembly is convenient, installation is firm, the positioning strip 11 is subjected to laser drilling, accuracy is high, the positioning strip is used as a positioning ruler, assembly of a cross beam 401 and a longitudinal beam 400 on the underframe 4 is convenient, in addition, the positioning strip 11 is positioned on the outer sides of the two longitudinal beams 400, and reinforcing support can be carried out on a carriage bottom plate on the outer side. The cross beams 401 and the longitudinal beams 400 are made of sectional materials with C-shaped cross sections, the cross beams 401 are arranged above the longitudinal beams 400 and fixedly connected through fasteners, and the underframe panels 41 are fixed on the cross beams 401. The cross beam 401 and the longitudinal beam 400 are arranged at a right angle and provided with right-angle reinforcing members 8 at the positions of the right angles, one side of each right-angle reinforcing member 8 is fixedly connected with the cross beam 401 through fasteners, and the other side of each right-angle reinforcing member 8 is fixedly connected with the longitudinal beam 400 through fasteners. The longitudinal beam 400 and the transverse beam 401 of the underframe 4 are made of sectional materials and are fixedly connected through fasteners, so that the standardization degree is high, the transportation is convenient, and the assembly is simple and convenient. The right-angle reinforcing member 8 is adopted to strengthen and fix the transverse beam 401 and the longitudinal beam 400, so that the structure is firm and the positioning is accurate. In the prior art, the new energy logistics vehicle still has some defects, including: 1) The carriage side plate and the underframe are connected through the connecting strip arranged outside the carriage, so that the connecting strength is low, the structure is not firm enough, the connecting strip with one side of the side door connected with the underframe is divided into three sections, and the integral structural strength of the carriage and the connecting strength of the side door frame assembly, the carriage side plate and the underframe are affected; 2) The carriage underframe is welded into a whole by adopting I-steel, so that the carriage underframe has large volume and heavy weight, is very inconvenient to transport, store and install, and is required to be customized and processed in underframe manufacturers aiming at carriages with different sizes, so that the assembly difficulty of the assembly factories is high and the efficiency is low; 3) The parts of the carriage rear door assembly are connected by welding or fastening pieces, the assembly is inconvenient and not firm enough, the rear door frame upright post main body is of a hollow L shape formed by bending plates, the rear door frame upright post main body comprises a main body part and a clamping groove part perpendicular to the main body part, reinforcing plates are welded between the clamping groove parts, and the internal welding difficulty is high; 4) The skirt board is fixedly arranged on the side edge of the underframe of the new energy logistics vehicle as a whole, when the logistics vehicle is overhauled, the whole vehicle needs to be drilled into the bottom of the vehicle or jacked up, the operation is inconvenient, and particularly when the battery is placed on the chassis of the new energy logistics vehicle, the battery is very inconvenient to replace and overhaul; 5) The carriage top plate is made of a whole composite plate, and the middle collapse is easy to occur due to the large area and the horizontal suspended placement, so that the carriage strength is influenced.

As shown in fig. 8, 9 and 10, the cross member 401 is made of an aluminum profile, and the cross section structure of the cross member 401 includes a first vertical plate portion 4010 and two first flat plate portions 4011 provided on both upper and lower sides of the first vertical plate portion 4010; the longitudinal beam 400 is made of an aluminum profile, and the section structure of the longitudinal beam 400 comprises a second vertical plate 4000 and two second plate 4001 arranged on the upper side and the lower side of the second vertical plate 4000; the right angle stiffener 8 is mounted at an angle between the first riser portion 4010 of the cross member 401 and the second riser portion 4000 of the longitudinal member 400. As shown in fig. 11 and 12, one side of the right-angle stiffener 8 is fixedly connected to the first riser portion 4010 of the cross member 401 by a fastener, and the other side of the right-angle stiffener 8 is fixedly connected to the second riser portion 4000 of the side member 400 by a fastener. The right-angle reinforcement 8 includes a first reinforcement plate portion 80 and a second reinforcement plate portion 81, the second reinforcement plate portion 80 is attached to the second riser portion 4000 of the side member 400, the second reinforcement plate portion 80 is fixed to the side member 400 by a fastener, the first reinforcement plate portion 81 is attached to the first riser portion 4010 of the cross member 401, the first reinforcement plate portion 81 is fixed to the cross member 401 by a fastener, and thus the fixed connection between the cross member 401 and the side member 400 is achieved.

As shown in fig. 13, 14 and 15, the beam 401 is internally provided with a first reinforcement 7, the first reinforcement 7 is made of an aluminum C-shaped section bar, the section structure of the section bar comprises a first reinforcement vertical plate part 70 and two first reinforcement flat plate parts 71 arranged on the upper side and the lower side of the first reinforcement vertical plate part 70, and the first reinforcement 7 is embedded in a groove of the beam 401; the first reinforcement riser portion 70 of the first reinforcement 7 is closely attached to the first riser portion 4010 of the cross member 401, and the upper and lower two first reinforcement flat plate portions 71 of the first reinforcement 7 are closely attached to the upper and lower two first flat plate portions 4011 of the cross member 401. When the cross beam 401 and the longitudinal beam 400 are fixedly connected, the first reinforced flat plate part 71 at the bottom of the first reinforcement 7 and the second flat plate part 4001 at the top of the longitudinal beam 400 are respectively positioned at the upper side and the lower side of the first flat plate part 4011 at the bottom of the cross beam 401, and the second flat plate part 4001 at the top of the longitudinal beam 400, the first flat plate part 4011 at the bottom of the cross beam 401 and the first reinforced flat plate part 71 at the bottom of the first reinforcement 7 are fixedly connected through fasteners; when the right-angle reinforcing member 8 is fixedly connected with the cross beam 401, the right-angle reinforcing member 8 and the first reinforcing vertical plate portion 70 of the first reinforcing member 7 are respectively positioned on the inner side and the outer side of the first vertical plate portion 4010 of the cross beam 401, and the right-angle reinforcing member 8, the first vertical plate portion 4010 of the cross beam 401 and the first reinforcing vertical plate portion 70 of the first reinforcing member 7 are fixedly connected through fasteners; the first reinforcement riser portion 70 of the first reinforcement 7 is proximate to the first riser portion 4010 of the cross member 401 such that the cross-sectional structure of the first reinforcement 7 and the cross member 401 after assembly is C-shaped, or, as shown in fig. 16, the first reinforcement riser portion 70 of the first reinforcement 7 is distant from the first riser portion 4010 of the cross member 401 such that the cross-sectional structure of the first reinforcement 7 and the cross member 401 after assembly is mouth-shaped. The cross beam 401 and the longitudinal beam 400 are detachably mounted through the first reinforcing member 7 and the right-angle reinforcing member 8, so that the mounting is convenient and the firmness is high. When the underframe 4 is transported, the underframe 4 can be split into the longitudinal beam 400 and the transverse beam 401, so that the occupied space is small, and the transportation is convenient. Meanwhile, the cross beam 401 can be made of aluminum, and the longitudinal beam 400 and the cross beam 401 can be made of aluminum, so that the weight of a carriage is reduced. The first reinforcement 7 may increase the load bearing capacity of the chassis 4 so that the load bearing requirements of the apparatus can be met. The reinforcement is used to reinforce the open-cell connection portion of the cross member 401, so that the overall structural strength and the load-bearing weight are increased by reinforcing the weak portion, and the increase of the manufacturing cost and the carriage weight is avoided as much as possible.

As shown in fig. 9, 13 and 14, the inner side walls of the two first flat plate portions 4011 of the cross beam 401 and the outer side walls of the two first reinforcing flat plate portions 71 of the first reinforcing member 7 achieve lateral sliding longitudinal limitation by means of a concave-convex fitting structure; first limit protrusions 4013 for restricting the first reinforcement 7 from coming out of the grooves of the cross member 401 are formed protruding on the upper and lower first flat plate portions 4011 of the cross member 401. The inner sides of the two first flat plate portions 4011 of the cross member 401 are provided with first bosses 4012 along the length direction, and the first reinforcement 7 is provided with first sliding grooves 710 in which the first bosses 4012 are matched, so that the first reinforcement 7 can slide along the first bosses 4012. The first sliding groove 710 on the first reinforcement flat plate portion 71 of the first reinforcement member 7 is matched with the first protruding plate 4012 on the first flat plate portion 4011 of the beam 401, so that on one hand, the first reinforcement member 7 is facilitated to move along the first protruding plate 4012 on the first flat plate portion 4011, on the other hand, the first reinforcement member 7 is limited to longitudinally move in the beam 401, and on the other hand, the upper and lower first flat plate portions 4011 of the beam 401 are relatively protruded with first limiting protrusions 4013 for limiting the longitudinal sliding of the first reinforcement member 7. The first limit projection 4013 on the first flat plate portion 4011 further limits the first reinforcement member 7 from moving longitudinally within the cross member 401.

As shown in fig. 10, 17 and 18, the second reinforcement 9 is installed in the longitudinal beam 400, and the second reinforcement 9 is made of an aluminum C-shaped section bar, the section structure of which includes a second reinforcement vertical plate portion 90 and two second reinforcement flat plate portions 91 provided at both upper and lower sides of the second reinforcement vertical plate portion 90, and a plurality of second reinforcement 9 are spaced apart along the length direction of the longitudinal beam 400. The second reinforcement 9 is embedded in the groove of the longitudinal beam 400, the second reinforcement vertical plate part 90 of the second reinforcement 9 is tightly attached to the second vertical plate part 4000 of the longitudinal beam 400, and the upper and lower second reinforcement flat plate parts 91 of the second reinforcement 9 are tightly attached to the upper and lower second flat plate parts 4001 of the longitudinal beam 400; when the cross beam 401 and the longitudinal beam 400 are fixedly connected, the first flat plate portion 4011 at the bottom of the cross beam 401 and the second reinforcing flat plate portion 91 at the top of the second reinforcing member 9 are respectively positioned on the upper side and the lower side of the second flat plate portion 4001 at the top of the longitudinal beam 400, and the second flat plate portion 4001 at the top of the longitudinal beam 400, the first flat plate portion 4011 at the bottom of the cross beam 401 and the second reinforcing flat plate portion 91 at the top of the second reinforcing member 9 are fixedly connected through fasteners; when the right-angle reinforcing member 8 is fixedly connected with the longitudinal beam 400, the second reinforcing vertical plate parts 90 of the right-angle reinforcing member 8 and the second reinforcing vertical plate parts 9 are respectively positioned on the inner side and the outer side of the second vertical plate part 4000 of the longitudinal beam 400, and the right-angle reinforcing member 8, the second vertical plate part 4000 of the longitudinal beam 400 and the second reinforcing vertical plate part 90 of the second reinforcing member 9 are fixedly connected through fasteners. The second reinforcement 9 may further increase the bearing capacity of the chassis 4. The open-cell connection portions of the stringers 400 are reinforced with reinforcing members, which are reinforced at weak portions to increase the overall structural strength and load-bearing weight while avoiding an increase in manufacturing costs and cabin weight as much as possible. The second reinforcement riser portion 90 of the second reinforcement 9 is proximate to the second riser portion 4000 of the side member 400 such that the cross-sectional structure of the second reinforcement 9 and the side member 400 assembled is C-shaped, or the second reinforcement riser portion 90 of the second reinforcement 9 is distant from the second riser portion 4000 of the side member 400 such that the cross-sectional structure of the second reinforcement 9 and the side member 400 assembled is mouth-shaped.

As shown in fig. 10, 17 and 18, the inner side wall of the second flat plate portion 4001 of the side member 400 and the outer side wall of the second reinforcement flat plate portion 91 of the second reinforcement 9 achieve longitudinal sliding lateral limitation by the concave-convex fitting structure; the upper and lower second flat plate portions 4001 of the side member 400 are formed with second stopper projections 4003 for restricting escape of the second reinforcement member 9 from the grooves of the side member 400. The inner sides of the two second flat plate portions 4001 of the side member 400 are provided with second projecting plates 4002 in the longitudinal direction, and the second reinforcement member 9 is provided with second slide grooves 910 that are fitted with the second projecting plates 4002 so that the second reinforcement member 9 can slide along the second projecting plates 4002. The second runner 910 of the second reinforcement panel 91 of the second reinforcement member 9 cooperates with the second projection 4002 of the second panel 4001 of the stringer 400 to facilitate movement of the second reinforcement member 9 along the second projection 4002 of the second panel 4001 and to limit longitudinal movement of the second reinforcement member 9 within the stringer 400. The upper and lower second flat plate portions 4001 of the side member 400 are relatively projected with second stopper projections 4003 for restricting the longitudinal sliding movement of the second reinforcement member 9. The second spacing projections 4003 on the second flat panel portion 4001 further limit the longitudinal movement of the second reinforcement member 9 within the stringer 400.

The assembling method of the underframe 4 comprises the following steps: 1) Two longitudinal beams 400 are arranged in parallel, two ends of the two longitudinal beams 400 are aligned, and a front cross beam 401 and a rear cross beam 401 are fixed on the two longitudinal beams 400 through fasteners; 2) Fixedly connecting two positioning strips 11 with the two beams 401, wherein through holes 4014 on the two beams 401 are aligned with corresponding positioning holes 110 on the positioning strips 11 and are positioned and fixed by fasteners; 3) The rest of the beams 401 are fixed on the two positioning strips 11, wherein through holes 4014 on the beams 401 are aligned with corresponding positioning holes 110 on the positioning strips 11 and are fixed by fasteners; 4) The remaining cross members 401 are fastened to the two stringers 400 by fasteners.

As shown in fig. 4, the first side plate 22 is connected to the chassis panel 41 via the rocker 12, and the second side plate 23 is connected to the chassis panel 41 via the rocker 12. Compared with the prior art, the lower edge beam 12 is integrally formed and made of aluminum profiles, so that the stability is stronger, and the processing is easy.

As shown in fig. 19 and 20, the side door assembly includes a connector 6, a rocker 12, a first module plate 230, a second module plate 232, and a side door frame assembly 231, upper portions of the first module plate 230 and the second module plate 232 being connected to an upper panel of the vehicle compartment through the connector 6, and lower portions of the first module plate 230 and the second module plate 232 being connected to an underframe 4 of the vehicle compartment through the rocker 12; the first assembly plate 230 and the second assembly plate 232 are respectively fixed to both sides of the side door frame assembly 231, and the side door frame assembly 231 is mounted with the side door assembly 2310; the side door frame assembly 231 includes left and right side door uprights 2311 and a side door cross member 2312 coupled to upper ends of the side door uprights 2311, upper portions of the side door cross member 2312 being inserted into the first coupling grooves 60 of the coupling members 6 and fixed by fasteners; the upper end of the side door upright 2311 is fixedly connected with the side door frame cross beam 2312 through the side door corner bracket 14, and the lower end of the side door upright 2311 is inserted into the second clamping groove 128 of the lower side beam 12 and fixed through a fastener. The side frame assembly 231 is combined with the upper connecting piece 6 of the side plate of the carriage and the lower side beam 12 to improve the overall structural strength of the carriage and the side door. The lower edge beam in the prior art is formed by splicing three parts, is unstable, is integrally formed, and has higher stability; in addition, the side door upright posts are spliced with the inner wall and the outer wall of the lower edge beam in a size fit manner, so that the side door upright posts are convenient to install and simple in structure.

As shown in fig. 21 and 22, the rocker 12 is made of an aluminum profile, the cross-sectional structure of the rocker 12 includes a vertical base plate portion 120, a first clamping plate portion 121 perpendicular to the base plate portion 120 extends inward from the middle of the base plate portion 120, a second clamping plate portion 122 perpendicular to the base plate portion 120 extends inward from the lower portion of the base plate portion 120, the first clamping plate portion 121 and the second clamping plate portion 122 are located on the same side of the base plate portion 120, a first clamping groove 123 for inserting a cross beam 401 of the chassis 4 is formed between the first clamping plate portion 121 and the second clamping plate portion 122, the first clamping groove 123 is used for clamping and fixing an end portion of the cross beam 401, and the distance that the first clamping plate portion 121 extends inward relative to the base plate portion 120 is greater than the distance that the second clamping plate portion 122 extends inward relative to the base plate portion 120. The first clamping plate part 121 extends to form a first connecting part 124 in a direction away from the second clamping plate part 122, an installation part 126 extends to a direction close to the base plate part 120 at the upper part of the first connecting part 124, a third clamping plate part 127 extends upwards at one side of the installation part 126 close to the base plate part 120, the third clamping plate part 127 is parallel to the base plate part 120, and a second clamping groove 128 for plugging a carriage side plate is formed between the third clamping plate part 127 and the base plate part 120; the first pressing plate portion 125 is formed on the upper portion of the first connecting portion 124 so as to extend away from the base plate portion 120, and as shown in fig. 21 and 22, a third clamping groove 129 for clamping the chassis panel 41 is formed between the first pressing plate portion 125 and the first connecting portion 124. The end of the beam 401 of the chassis 4 is inserted into the first clamping groove 123 and is fixedly connected with the first clamping plate portion 121 and/or the second clamping plate portion 122 through a fastener, the side edge of the chassis panel 41 is inserted into the third clamping groove 129 and is fixedly connected with the first pressing plate portion 125 through a fastener, and the lower side edge of the side board of the carriage is inserted into the second clamping groove 128 and is fixedly connected with the third clamping plate portion 127 and/or the base plate portion 120 through a fastener. The first pressing plate 125 is provided with a strip-shaped groove 1250 along the length direction, and the strip-shaped groove 1250 is filled with sealant. The sealing property of the first pressing plate portion 125 and the chassis panel 41 is increased by bonding the first pressing plate portion 125 and the chassis panel 41 with the sealant.

In another embodiment of the rocker 12, as shown in fig. 23, a second connection portion 130 is formed by extending the third clamping plate portion 127 toward the second clamping plate portion 122, the first connection portion 124, the mounting portion 126, the second connection portion 130 and the first clamping plate portion 121 form a tubular structure, a plurality of protruding strips are provided on the first pressing plate portion 125 along the length direction of the rocker 12, an end of the second clamping plate portion 122 away from the base plate portion 120 extends downward to form an L-shaped third connection portion 131, and an end of the third connection portion 131 away from the second clamping plate portion 122 extends downward to form a sixth connection plate portion 132.

As shown in fig. 24 and 25, the side door frame cross member 2312 is made of a tubular profile including a side door frame cross member main body 23121 and a connection pipe portion 23122 for the plug connector 6; the side door frame beam main body 23121 has a thickness greater than that of the connection pipe portion 23122 to form a step at a combined position thereof; the cross-sectional structure of the side frame rail body 23121 is L-shaped, and the thickness of the lower portion of the side frame rail body 23121 is greater than the thickness of the upper portion thereof. The connection pipe portion 23122 is inserted into the first connection groove 60 of the connection member 6 and fixed by a fastener. Thus, the door frame structure is firmer, and the door frame is deeper, so that the door plate is convenient to seal and install more firmly.

As shown in fig. 26, the side door pole 2311 includes a side door pole body 23111 having a hollow L-shaped tubular structure, one end of the side door pole body 23111 is outwardly extended with a socket part for inserting the first assembly plate 230 or the second assembly plate 232, and the socket part is formed with a pole clamping groove 23112 into which the first assembly plate 230 or the second assembly plate 232 is inserted; the thickness of the side door pole body 23111 is smaller than that of the socket part so as to form a step at the combined position of the two; the cross-sectional structure of the side door pole body 23111 is L-shaped, and the thickness of the lower portion of the side door pole body 23111 is greater than that of the upper portion thereof. Thus, the door frame structure is firmer, and the door frame is deeper, so that the door plate is convenient to seal and install more firmly.

As shown in fig. 20, both ends of the side door frame cross member 2312 are respectively connected to side door uprights 2311 through side door jambs 14. As shown in fig. 20 and 27, the side door corner brace 14 is inverted L-shaped, a plurality of through holes 140 are formed in the inner side of the side door corner brace 14, reinforcing ribs 141 are fixed between adjacent through holes 140, mounting holes 142 are formed in the end portions of each reinforcing rib 141, materials can be saved due to the arrangement of the through holes 140, and strength can be increased due to the arrangement of the mounting holes 142. One end of the side door corner bracket 14 is inserted on the side door frame cross beam 2312, the other end is inserted on the side door upright post 2311, and the side door upright post 2311 and the side door frame cross beam 2312 are fixedly connected through a fastener. The side door frame cross beam 2312 is connected with the two side door uprights 2311 through the side door corner bracket 14, and the assembly operation is simple and stable.

As shown in fig. 28, the rocker 12 connecting the side door assembly and the underframe panel 41 needs to be notched for mating connection with the side door frame assembly 231, so that the side wall of the second clamping groove 128 of the rocker 12 is prevented from protruding from the underframe panel 41 to form a threshold, and the goods are prevented from entering and exiting. The lower ends of the two side door uprights 2311 are disposed on the rocker 12, the base plate 120 of the rocker 12 is cut with a fifth notch 1200 at a position matching with the side door frame assembly 231, the third clamping plate 127 of the rocker 12 is cut with a sixth notch 1270 at a position matching with the side door frame assembly 231, the lower end of the upright post clamping groove 23112 of the side door upright 2311 is cut with a seventh notch 2315 matching with the fifth notch 1200 and the sixth notch 1270, and after the seventh notch 2315 of the upright post clamping groove 2314 is matched with the fifth notch 1200 and the sixth notch 1270, namely, the lower end of the side door upright post 2311 is inserted into the second clamping groove 128 of the rocker 12 through the fifth notch 1200 and the sixth notch 1270 and fixedly connected with the third clamping plate 127 and/or the base plate 120 through fasteners. The first and second component plates 230, 232 on the side door assembly are captured within the second clamping groove 128 of the rocker 12. The two side door uprights 2311 are in plug-in connection with the inner and outer walls of the lower edge beam 12, and are convenient to install and simple in structure.

Assembling a side door assembly: 1) Both ends of the side door frame cross beam 2312 are respectively connected with the side door upright posts 2311 through side door corner brackets 14 and fixed through fasteners, so that the assembly of the side door frame assembly 231 is completed; 1) The connecting pipe 23122 on the side door frame cross beam 2312 is inserted into the first connecting groove 60 of the connecting piece 6 and fixed by a fastener; 3) The lower ends of the two side door uprights 2311 are respectively inserted into the second clamping grooves 128 of the lower edge beam 12 and fixed by fasteners; 4) The first assembly plate 230 and the second assembly plate 232 are fixed to both sides of the side door frame assembly 231, respectively.

As shown in fig. 29, the rear door assembly 3 includes a rear door frame assembly 30 and a rear door assembly 31, the rear door frame assembly 30 being for cooperation with the deck assembly 2, the bottom chassis 4 and the skirt assembly 5 at the same time, the rear door assembly 31 being provided at the rear door frame assembly 30. The rear door frame assembly 30 is connected with the first side plate 22 and the second side plate 23 through a rear door frame upright 300, the rear door frame assembly 30 is connected with the upper panel through a rear door frame cross beam 301, and the rear door frame assembly 30 is connected with the chassis panel 41 through a rear baffle cross beam 302.

As shown in fig. 29, 30 and 31, the rear door frame assembly 30 includes two rear door frame uprights 300 vertically disposed at left and right sides, a rear door frame cross member 301 and a tailgate assembly 303. The rear door frame pole 300 is made of an aluminum profile and comprises a pole body 3000 with a hollow tubular structure, and a clamping groove 3001 for clamping a side plate is formed in one side of the pole body 3000 along the length direction of the pole body. The main part of the back door frame pole setting of prior art adopts panel bending structure to become hollow L type, and the pole setting main part includes main part and with main part vertically draw-in groove portion, the welding has the reinforcing plate between the draw-in groove portion, however, the inside welding degree of difficulty is big. The rear door frame upright 300 is made into a section through die opening, so that the manufacturing cost is low on one hand, and the installation is convenient on the other hand. The upper ends of the two back door frame uprights 300 are respectively and fixedly connected with the left end and the right end of the back door frame cross beam 301 through a first angle 15, and the lower parts of the two back door frame uprights 300 are provided with a back baffle assembly 303. The back door assembly 31 is disposed between the back door frame rail 301 and the tailgate assembly 303.

As shown in fig. 31 and 32, the upper end of the rear door frame upright 300 is connected to the rear door frame cross member 301 and the connecting member 6 by the first angle 15. As shown in fig. 35 and 36, the rear door frame cross member 301 includes a first body portion 3010 having a tubular structure, the first body portion 3010 is formed with a fourth connecting portion 3011 extending upward in a longitudinal direction thereof, the fourth connecting portion 3011 is used for fixing the weather shield 16, the first body portion 3010 is formed with a support plate portion 3013 extending in a direction away from the fourth connecting portion 3011, and the support plate portion 3013 is used for supporting an upper panel. The rain shield 16 is fixedly installed above the fourth connection portion 3011 of the rear door frame rail 301, so that an upper panel clamping groove 160 for clamping an upper panel of a vehicle compartment is formed between the rain shield 16 and the support plate portion 3013 of the rear door frame rail 301; wherein the support plate portion 3013 and the first body portion 3010 are connected by a support portion 3012, and the support portion 3012 is a tubular structure formed by extending from one side surface of the first body portion 3010; the fourth connecting portion 3011 is a tubular structure extending from one side surface of the first body portion 3010; the rear door frame cross member 301 is made of an aluminum profile, and the rear door frame cross member 301 made of the aluminum profile is easy to process and can reduce the weight of the vehicle body. The upper panel and the upper panel clamping groove 160 are provided with sealant and fixed by fasteners, and the rain shield 16 extends outwards to form a rain shield 161 which shields the rear door assembly 31 from the upper side.

As shown in fig. 32, 33 and 34, the first angle 15 is made of an aluminum profile and includes a first angle body 150 for connecting a rear door frame cross member 301 and having a square tubular structure, and a concave-convex structure is formed on a sidewall of the first angle body 150 and extends along an extending direction of the profile. The first angle body 150 is smaller than the first main body 3010 of the rear door frame cross beam 301, and the first angle body 150 can extend into the tubular structure of the first main body 3010, one side surface of the first angle body 150 extends outwards to form a first connection plate 151 for connecting the rear door frame upright 300, and a concave-convex structure is formed on a side wall of the first connection plate 151 and extends along the extending direction of the profile. The first caulking groove 152 for being embedded into the rear door frame upright 300 is formed at the included angle part between the first connecting plate part 151 and the first angle body 150. The first angle code body 150 is inserted into the pipe orifice of the first main body part 3010 of the rear door frame cross beam 301, the first angle code 15 is fixedly connected with the rear door frame cross beam 301 through a fastener, the vertical rod body 3000 is embedded into the first caulking groove 152 of the first angle code 15, and the first connecting plate part 151 of the first angle code 15 is fixedly connected with the vertical rod body 3000 of the rear door frame vertical rod 300 through a fastener, so that the connection between the rear door frame cross beam 301 and the rear door frame vertical rod 300 is completed; the rear door frame upright post 300 is fixedly connected with the rear door frame cross beam 301 through an angle bracket, so that the assembly is convenient, the connection is firm, and the cost is low. As shown in fig. 35, first notches 3014 are cut at two ends of the rear door frame beam 301, the first corner code body 150 is inserted into the tubular structure of the rear door frame beam 301, the first connection plate 151 of the first corner code 15 corresponds to the first notch 3014, the upright rod body 3000 of the rear door frame upright rod 300 is embedded into the first caulking groove 152, and the fastener passes through the first main body 3010 of the rear door frame beam 301, the first connection plate 151 of the first corner code 15 and the upright rod body 3000 to complete connection between the rear door frame beam 301 and the rear door frame upright rod 300. The hidden corner connector is convenient to install, high in connection strength and attractive in appearance. In addition, the connector 6 is fixed to the rear door frame pole 300 by bolts, thereby completing the assembly of the rear door frame cross member 301, the rear door frame pole 300, and the connector 6.

As shown in fig. 29, the tailgate assembly 303 includes a horizontally disposed tailgate beam 302, a tailgate bottom beam 3031, and a tailgate 3032 disposed between the tailgate beam 302 and the tailgate bottom beam 3031. The tailgate beam 302 is connected to the back door frame pole 300 by a second bracket 17. As shown in fig. 37 and 38, the end portions of two stringers 400 in which the tailgate cross member 302 is fixed to the chassis 4 are, as shown in fig. 40, the tailgate cross member 302 is made of an aluminum profile, and includes a second main body portion 3033 having a tubular structure, one side of the second main body portion 3033 extends outwardly to form a rear platen portion 3034 for pressing and fixing the chassis panel 41, and the cross member 401 cooperates with the rear platen portion 3034 to clamp the chassis panel 41 between the cross member 401 and the rear platen portion 3034.

As shown in fig. 41, the second corner connector 17 is made of an aluminum profile and comprises a second corner connector body 170 which is used for connecting a rear baffle beam 302 and is in a square tube structure, the square tube-shaped second corner connector 17 is convenient to drill and install, and a concave-convex structure is formed on the side wall of the second corner connector body 170 and extends along the extending direction of the profile. The second bracket body 170 has a size smaller than the second main body portion 3033 of the tailgate beam 302, and the second bracket body 170 is extendable into the tubular structure of the second main body portion 3033, one side surface of the second bracket body 170 is outwardly extended to form a second connection plate portion 171 for connecting the rear door frame upright 300, and a concave-convex structure is formed on a side wall of the second connection plate portion 171, the concave-convex structure extending along the profile extension direction. The second caulking groove 172 for embedding the rear door frame pole 300 is formed at the included angle part between the second connection plate part 171 and the second bracket body 170. The rear baffle cross beam 302 and the second corner connector 17 are respectively made of aluminum profiles, wherein, as shown in fig. 39, 40 and 41, the two ends of the rear baffle cross beam 302 are cut with second cuts 3035, the second corner connector body 170 is inserted into the pipe orifice of the rear baffle cross beam 302, the second connecting plate portion 171 of the second corner connector 17 corresponds to the second cuts 3035, the vertical rod body 3000 is embedded into the second caulking groove 172, and the fastener passes through the second main body portion 3033 of the rear baffle cross beam 302, the second connecting plate portion 171 of the second corner connector 17 and the vertical rod body 3000 to complete the connection between the rear baffle cross beam 302 and the rear door frame vertical rod 300, and the rear baffle cross beam 302 and the rear door frame vertical rod 300 are fixedly connected through the corner connector, so that the assembly is convenient and the connection is firm. A fourth connecting plate portion 173 for connecting the rocker 12 is formed on one side, away from the second corner bracket body 170, of the second connecting plate portion 171 of the second corner bracket 17 in an extending manner, the fourth connecting plate portion 173 is arranged perpendicular to the second connecting plate portion 171, and the fourth connecting plate portion 173 is inserted into the first clamping groove 123 of the rocker 12 and fixedly connected with the base plate portion 120 of the rocker 12 through a fastener; the front part of the fourth connecting plate 173 is embedded in the first clamping groove 123 of the lower edge beam 12 and is attached to the base plate 120, and bolts penetrate through the base plate 120 and the fourth connecting plate 173, so that the first lower edge beam 12 is fixedly connected with the back door frame upright 300 and the back door frame cross beam 3030 through the second corner connector 17; the inner side wall of the clamping groove 3001 of the back door frame upright 300 is provided with a fourth notch 3002 in a cutting mode at a position corresponding to the back baffle cross beam 302, the rear part of the fourth connecting plate portion 173 is inserted into the fourth notch 3002 of the back door frame upright 300 and fixedly connected with the outer side wall of the clamping groove 3001 through a fastener, so that the second corner bracket 17 is fixedly connected with the back door frame upright 300 again, the fixed connection of the back door frame upright 300 and the lower edge beam 12 is realized through the fourth connecting plate portion 173 of the second corner bracket 17, and the fixed connection of the back baffle cross beam 3030, the back door frame upright 300 and the lower edge beam 12 is realized through the second corner bracket 17, and the structure is firm and reliable. A fifth connecting plate 174 for connecting the cross member 401 is formed on the fourth connecting plate 173 so as to extend in a direction toward the second bracket body 170 on a side away from the second connecting plate 171. The fifth connecting plate 174 of the second bracket 17 may be fixedly connected to the cross member 401 of the chassis 4 by a fastener, so that the connection strength and the integrity between the rear door frame assembly 30 and the chassis 4 and the cabin may be further enhanced.

The hidden section bar corner connector is adopted, so that the fixed connection between the rear door frame upright rod 300 and the rear baffle cross beam 3030 as well as the lower edge beam 12 is facilitated, the connection strength is high, and the appearance is attractive. The chassis panel 41 is fixed to the plurality of cross members 401, and the rear platen portion 3034 of the tailgate cross member 3030 is engaged with the end portion of the chassis panel 41, so that the plurality of cross members 401 and the rear platen portion 3034 of the tailgate cross member 3030 cooperate to clamp and fix the chassis panel 41 between the cross member 401 and the rear platen portion 3034.

As shown in fig. 43 and 44, the tailgate bottom beam 3031 is fixedly coupled to the bottom end of the rear door frame upright 300 by a third bracket 18. As shown in fig. 45, the tailgate bottom beam 3031 is made of an aluminum profile and includes a third main body portion 3036 having a tubular structure, and a lateral tube portion 3037 is provided below the third main body portion 3036 along a length thereof. As shown in fig. 46, the third corner brace 18 is made of an aluminum profile and includes a third corner brace body 180 having a square tubular structure for connecting a tailgate bottom beam 3031, and a concave-convex structure extending along the extending direction of the profile is formed on a sidewall of the third corner brace body 180. The third angle code body 180 has a size smaller than the third main body portion 3036 of the tailgate bottom beam 3031, and the third angle code body 180 can extend into the tubular structure of the third main body portion 3036, one side surface of the third angle code body 180 extends outwards to form a third connection plate portion 181 for connecting the rear door frame upright 300, and a concave-convex structure is formed on a side wall of the third connection plate portion 181 and extends along the extending direction of the profile. The third caulking groove 182 for embedding the rear door frame pole 300 is formed at the included angle part between the third connecting plate part 181 and the third code body 180. The third corner bracket body 180 is inserted into the orifice of the third main body portion 3036 of the tailgate bottom beam 3031, and the third corner bracket 18 is connected with the tailgate bottom beam 3031 by a fastener, the upright post body 3000 is embedded into the third caulking groove 182, and the third connecting plate portion 181 of the third corner bracket 18 is fixedly connected with the upright post body 3000 of the tailgate upright post 300 by a fastener, so that the connection of the tailgate bottom beam 3031 and the tailgate upright post 300 is completed; the third cutouts 3038 are cut at both ends of the tailgate bottom beam 3031, the third corner brace body 180 is inserted into the pipe orifice of the tailgate bottom beam 3031, the third connecting plate portion 181 of the third corner brace 18 corresponds to the third cutout 3038, the upright rod body 3000 is embedded into the third caulking groove 182, and the fastener passes through the third main body portion 3036 of the tailgate bottom beam 3031, the third connecting plate portion 181 of the third corner brace 18 and the upright rod body 3000 to complete the connection of the tailgate bottom beam 3031 and the rear door frame upright rod 300. The hidden section bar corner connector is adopted, so that the fixed connection between the rear door frame upright rod 300 and the rear baffle bottom beam 30312 is facilitated, and the connecting strength is high and the appearance is attractive.

Assembly of the rear door assembly 3: 1) Two ends of the rear door frame cross beam 301 are respectively connected with the rear door frame upright post 300 through the first angle 15 and fixedly connected through a fastener; 2) The lower ends of the two back door frame uprights 300 are connected through a back baffle assembly 303, a back baffle cross beam 302 at the upper end of the back baffle assembly 303 is respectively connected with the back door frame uprights 300 through second corner brackets 17 and fixedly connected through fasteners, and a back baffle bottom beam 3031 at the lower end of the back baffle assembly 303 is respectively connected with the back door frame uprights 300 through third corner brackets 18 and fixedly connected through fasteners; 3) Finally, the tailgate assembly 31 is installed between the tailgate assembly 303 and the tailgate beam 301.

As shown in fig. 48, the skirt assembly 5 includes a skirt plate 50 provided on the chassis 4, the skirt plate 50 includes a front skirt plate 500 and a rear skirt plate 501, the front skirt plate 500 is hinged to the lower portion of the vehicle cabin via a skirt hinge 51, and the rear skirt plate 501 is fixedly connected to the lower portion of the vehicle cabin. The skirt plate 50 is divided into a fixed rear skirt plate 501 and a movable front skirt plate 500, and when the logistics vehicle is overhauled, the operation is simple and convenient only by rotating the front skirt plate 500.

As shown in fig. 49 and 50, the skirt hinge 51 is formed by cutting a profile 19, the profile 19 is an aluminum profile, the aluminum profile is easy to process, the profile comprises a first plate portion 190, a second plate portion 191 and a sleeve portion 192, a shaft hole 1921 for installing the hinge shaft 514 is formed in the sleeve portion 192, the extending direction of the shaft hole 1921 is consistent with the extending direction of the profile, the first plate portion 190 and the second plate portion 191 are respectively arranged on two sides of the sleeve portion 192 and are perpendicular to each other, and the sleeve portion 192 is located outside an included angle formed by the first plate portion 190 and the second plate portion 191. The skirt hinge 51 is cut from the profile 19 and has a relatively simple processing technique. The transition plate portion 1922, in which the sleeve portion 192 is connected to the first plate portion 190, is provided perpendicularly to the first plate portion 190, and a stopper step 1923 is formed between the transition plate portion 1922 and the second plate portion 191. In this manner, the stop step 1923 serves to position the skirt panel 50 such that when the skirt hinge 51 is installed between the skirt panel 50 and the rocker 12, a gap is formed between the first panel portion 190 and the edge of the skirt panel 50 to avoid interference with the removal of the skirt panel 50 after installation of the fastener.

The skirt hinge 51 is formed by cutting the same section and comprises a first hinge arm 510 and a second hinge arm 511 hinged through a hinge rotating shaft 514, wherein the first hinge arm 510 at least comprises a part of a sleeve part 192 and a part of a first plate part 190 of the section, and the second hinge arm 511 at least comprises another part of the sleeve part 192 and a part of a second plate part 191 of the section; the first hinge arm 510 is fixedly connected with the cross beam 401 or the rocker 12 of the carriage underframe 4 through a fastener, and the second hinge arm 511 is fixedly connected with the front skirt board 500 through a fastener, so that the cutting processing is convenient, and the hinging is reliable and firm. The first hinge arm 510 is matched with a notch formed by cutting the middle position of the second hinge arm 511; the profile 19 is an aluminium profile. The aluminum profile is easy to process.

In another embodiment of the skirt hinge 51, as shown in fig. 51 and 52, a third plate portion 193 is formed on the first plate portion 190 of the profile 19 in an extending manner, the third plate portion 193 and the second plate portion 191 are parallel and are located below the first plate portion 190, and a slot 1931 for inserting the front skirt plate 500 is formed between the third plate portion 193 and the second plate portion 191; the skirt hinge 51 is formed by cutting the same section and comprises a first hinge arm 510 and a second hinge arm 511 hinged through a hinge rotating shaft 514, wherein the first hinge arm 510 at least comprises a part of a sleeve part 192 and a part of a first plate part 190 of the section, and the second hinge arm 511 at least comprises another part of the sleeve part 192, a part of a second plate part 191 and a part of a third plate part 193 of the section; the first hinge arm 510 is fixedly connected to the cross member 401 or the rocker 12 of the cabin underframe 4 by a fastener, and the second hinge arm 511 is fixedly connected to the front skirt board 500 by a fastener. In this way, the third plate portion 193 and the second plate portion 191 clamp the front skirt plate 500 from both sides, and the fixation is more secure.

As shown in fig. 53 and 54, a part of the edges of the front skirt plate 500 and the rear skirt plate 501 are wrapped with a skirt plate wrapping 502, the cross section of the skirt plate wrapping 502 is in a U shape, and the skirt plate wrapping 502 is clamped and fixed at the edge positions of the front skirt plate 500 and the rear skirt plate 501; the skirt board edge 502 can well protect the board, increase the board strength, and avoid the board to damage due to collision. The outer side surfaces of the skirt plate edges 502 at the front and rear ends of the front skirt plate 500 are outwardly provided with limiting plates 5021; the limiting plates 5021 respectively abut against the plates at the front end and the rear skirt plate 501, so that the front skirt plate 500 is prevented from turning over and transiting. The inner side surfaces of the skirt plate rims 502 at the front and rear ends of the front skirt plate 500 are outwardly extended with a third reinforcing plate 5020, and the third reinforcing plate 5020 is fixed to the inner side of the front skirt plate 500 by fasteners. Like this, the skirt board edge 502 at both ends around the third gusset plate 5020 makes more firm fixing on the panel, when avoiding turning over the front skirt board 500 for a long time, two limiting plates 5021 on the skirt board edge 502 often collide with the panel of front end and the back skirt board 501 of rear end, make the skirt board edge 502 produce looseness or drop. The front skirt panel 500 may be locked to the cabin by a locking mechanism so as not to be overturned.

The rear end of the rear skirt plate 501 is inserted into the rear door frame upright 300 of the carriage and fixedly connected with the rear door frame upright 300 by a fastener, and the front end of the rear skirt plate 501 is fixed on the cross beam 401 or the lower side beam 12 of the carriage underframe 4 by a bracket 25, as shown in fig. 55, the bracket 25 is in an L shape and comprises a first connecting plate 250 fixed on the cross beam 401 or the lower side beam 12 and a second connecting plate 251 fixed on the inner side of the rear skirt plate 501; the connection of the first connection plate 250 and the second connection plate 251 is provided with a chamfer 252 so that the rear skirt plate 501 is firmly fixed and is convenient to install.

As shown in fig. 48 and 56, a guard plate 26 is arranged at the inner side of the carriage plate assembly 2 above the underframe 4, the guard plate 26 comprises a guard plate main body 260 for being attached to the front plate 21, the first side plate 22 or the second side plate 23, and the guard plate main body 260 is connected with the front plate 21, the first side plate 22 or the second side plate 23 through rivets; the lower end of the shielding plate main body 260 is vertically bent toward the inside to form a shielding plate folded portion 261 for attaching the chassis panel 41, and the shielding plate folded portion 261 is connected with the chassis 4 fastener.

The top plate 20 is a monolithic glass fiber reinforced polypropylene panel or polypropylene honeycomb panel with surface arching deformation or concave grooves 201 formed by pre-pressing, and can prevent the top plate 20 from collapsing.

The fastener of the present invention may be one or more of a bolt, a screw, a rivet, etc.

In this embodiment, the shield body 260 is a wear-resistant aluminum plate.

In this embodiment, a fender is further disposed at a position of the chassis 4 corresponding to the wheels.

In this embodiment, the skirt plate 50, the top plate 20, the front plate 21, the first side plate 22 and the second side plate 23 are each formed by combining glass fiber reinforced polypropylene panels on the upper and lower surfaces of a polypropylene honeycomb plate, wherein the thickness of the polypropylene honeycomb plate can be selected between 15 mm and 35mm, and the thickness of the glass fiber reinforced polypropylene panel can be selected between 1.5 mm and 2.5 mm.

In this embodiment, the glass fiber reinforced polypropylene panel is formed by hot-pressing an blended fabric of glass fibers and polypropylene filaments.

The carriage main body in this embodiment mainly includes the following steps when assembling:

(1) Assembling the underframe 4;

(2) The top plate 20, the front plate 21, the first side plate 22 and the second side plate 23 are manufactured into a carriage plate assembly 2 through the connecting piece 6 in a fastener matching mode;

(3) Assembling the rear door frame assembly 30 and the rear door assembly 31 into a rear door assembly 3;

(4) The carriage plate assembly 2, the rear door assembly 3 and the skirt edge assembly 5 are assembled with the underframe 4 in sequence.

(5) The front skirt board 500 is hinged on the lower edge beam 12 through the skirt hinge 51, and the rear skirt board 501 is clamped and fixed on the lower edge beam 12, so that the assembly of the skirt assembly 5 is completed.

Side door assembly 2310 and rear door assembly 31 can be installed last.

The directions in this embodiment are merely for convenience in describing the positional relationship between the respective members and the relationship of mutual cooperation. The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims

1. The side door assembly of the new energy logistics vehicle comprises a connecting piece (6), a lower edge beam (12), a first component plate (230), a second component plate (232) and a side door frame component (231), wherein the upper parts of the first component plate (230) and the second component plate (232) are connected with an upper panel of a carriage through the connecting piece (6), and the lower parts of the first component plate (230) and the second component plate (232) are connected with a chassis (4) of the carriage through the lower edge beam (12); the first assembly plate (230) and the second assembly plate (232) are respectively fixed on two sides of the side door frame assembly (231), and the side door frame assembly (231) is provided with a side door assembly (2310); the side door frame assembly (231) is characterized by comprising a left side door upright post (2311) and a right side door upright post (2311), a side door frame cross beam (2312) connected to the upper ends of the two side door upright posts (2311), and the upper part of the side door frame cross beam (2312) is inserted into a first connecting groove (60) of the connecting piece (6) and fixed through a fastener; the upper end of the side door upright rod (2311) is fixedly connected with the side door frame cross beam (2312) through a side door corner brace, and the lower end of the side door upright rod (2311) is inserted into the second clamping groove (128) of the lower side beam (12) and is fixed through a fastener;

The lower edge beam (12) is cut with an opening at a position matched with the side door frame assembly (231);

the lower side beam (12) is made of an aluminum profile, the cross-section structure of the lower side beam (12) comprises a vertical base plate part (120), a first clamping plate part (121) perpendicular to the base plate part (120) is formed by inwards extending the middle part of the base plate part (120), a second clamping plate part (122) perpendicular to the base plate part (120) is formed by inwards extending the lower part of the base plate part (120), the first clamping plate part (121) and the second clamping plate part (122) are positioned on the same side of the base plate part (120), a first clamping groove (123) for inserting a chassis cross beam (401) is formed between the first clamping plate part (121) and the second clamping plate part (122), a first connecting part (124) is formed by extending the first clamping plate part (121) in a direction away from the second clamping plate part (122), a mounting part (126) is formed by extending the upper part of the first connecting part (124) in a direction close to the base plate part (120), a third clamping part (127) is formed by upwards extending one side of the mounting part (126) close to the base plate part (120), and a third clamping part (127) is formed by upwards extending the side of the mounting part (126) close to the base plate part (120), and a second clamping part (127) is used for inserting a second side plate part (128) between the third clamping part and the second clamping part (122) is used for forming a side plate; a first pressing plate part (125) is formed on the upper part of the first connecting part (124) in an extending way away from the substrate part (120), and a third clamping groove (129) for clamping the chassis panel (41) is formed between the first pressing plate part (125) and the first connecting part (124); the end of the chassis cross beam (401) is inserted into the first clamping groove (123) and is fixedly connected with the first clamping plate portion (121) and/or the second clamping plate portion (122) through a fastener, the side edge of the chassis panel (41) is inserted into the third clamping groove (129) and is fixedly connected with the first pressing plate portion (125) through a fastener, and the lower side edge of the carriage side plate is inserted into the second clamping groove (128) and is fixedly connected with the third clamping plate portion (127) and/or the base plate portion (120) through a fastener.

2. The side door assembly of the new energy logistics vehicle according to claim 1, wherein the side door frame cross beam (2312) is made of tubular profile and comprises a side door frame cross beam main body (23121) and a connecting pipe part (23122) for the plug connector (6); the thickness of the side door frame beam main body (23121) is larger than that of the connecting pipe part (23122) so as to form a step at the joint position of the side door frame beam main body and the connecting pipe part; the cross-sectional structure of the side door frame beam main body (23121) is L-shaped, and the thickness of the lower part of the side door frame beam main body (23121) is larger than that of the upper part thereof.

3. The side door assembly of the new energy logistics vehicle according to claim 1, wherein the side door upright (2311) is made of tubular profiles, and comprises a side door upright main body (23111) and an inserting part for inserting the first component plate (230) or the second component plate (232), and an upright clamping groove (23112) for inserting the first component plate (230) or the second component plate (232) is formed in the inserting part; the thickness of the side door upright rod main body (23111) is smaller than that of the plug-in part so as to form a step at the joint position of the side door upright rod main body and the plug-in part; the cross-sectional structure of the side door pole body (23111) is L-shaped, and the thickness of the lower portion of the side door pole body (23111) is greater than that of the upper portion thereof.

4. The side door assembly of the new energy logistics vehicle according to claim 1, wherein the base plate portion (120) of the lower edge beam (12) is cut with a fifth notch (1200) at a position matched with the side door frame assembly (231), the third clamping plate portion (127) of the lower edge beam (12) is cut with a sixth notch (1270) at a position matched with the side door frame assembly (231), and the lower end of the side door upright (2311) is inserted into the second clamping groove (128) of the lower edge beam (12) through the fifth notch (1200) and the sixth notch (1270) and fixedly connected with the third clamping plate portion (127) and/or the base plate portion (120) through a fastener.

5. The side door assembly of the new energy logistics vehicle according to claim 1, wherein the connecting piece (6), the lower edge beam (12), the side door upright (2311) and the side door frame cross beam (2312) are all made of aluminum profiles.

6. The side door assembly of the new energy logistics vehicle according to claim 1, wherein the side door corner bracket (14) is made of a profile with an L-shaped cross section, and a plurality of mounting holes (142) for mounting fasteners are formed in the side door corner bracket (14); a plurality of through holes (140) are formed in the inner side of the side door corner brace (14), reinforcing ribs (141) are arranged between adjacent through holes (140), and mounting holes (142) are formed in the end portions of the reinforcing ribs (141).

7. The utility model provides a carriage of new forms of energy commodity circulation car, includes carriage body (1), and carriage body (1) include carriage board assembly (2), chassis (4), shirt rim assembly (5) and back door assembly (3), characterized by: a side door assembly comprising the logistics vehicle as claimed in any one of claims 1 to 6.

8. A new energy logistics vehicle is characterized in that: a side door assembly comprising the logistics vehicle as claimed in any one of claims 1 to 6.