阅读说明：本技术 一种竹缠绕客车车厢及其制备方法 (Bamboo-wound carriage of passenger car and preparation method thereof ) 是由 叶柃 张淑娴 高国军 姜夏云 赵柱石 于 2020-04-30 设计创作，主要内容包括：本发明公开了一种竹缠绕客车车厢,包括车厢主体、前围和后围,车厢主体由竹篾帘在施加流动树脂后,从内至外依次缠绕多层成型而得；车厢主体上设有多个窗户孔,窗户孔处安装有舷窗；前围和后围分别安装在车厢主体的前端和后端,且均为通过将环向竹篾帘和轴向竹篾帘彼此交错地平铺,并在施加流动树脂后执行多层加热压制成型而得。本发明通过综合考虑竹缠绕客车车厢自身结构及应用特点,相应对其结构以及关键结构成型参数等多个方面做出针对性设计,即便在车厢需要开多个窗户孔的情况下,仍可以使得车厢具有较高的结构强度,可有效减小对车厢主体的结构破坏,并具备密封性和稳定性好,以及还具有保温抗震隔音等增加乘坐舒适性的功能。(The invention discloses a bamboo-wound carriage of a passenger car, which comprises a carriage main body, a front wall and a rear wall, wherein the carriage main body is formed by sequentially winding a plurality of layers from inside to outside after a bamboo skin curtain applies flowing resin; a plurality of window holes are formed in the carriage main body, and portholes are formed in the window holes; the front wall and the rear wall are respectively installed at the front end and the rear end of the carriage main body and are all obtained by tiling the annular bamboo skin curtain and the axial bamboo skin curtain in a staggered manner, and performing multi-layer heating pressing molding after applying flowing resin. According to the invention, through comprehensively considering the self structure and application characteristics of the carriage of the passenger car wound by bamboo, the specific design is made on the structure, key structure forming parameters and other aspects, even under the condition that the carriage needs to be provided with a plurality of window holes, the carriage still has higher structural strength, the structural damage to the carriage main body can be effectively reduced, the sealing property and the stability are good, and the functions of heat preservation, shock resistance, sound insulation and the like are also provided for improving the riding comfort.)

1. A carriage of a passenger car wound by bamboo is characterized by comprising a carriage main body, a front wall, a rear wall and an underframe, wherein,

the carriage main body is formed by sequentially winding a plurality of layers of bamboo skin curtains formed by weaving and connecting a plurality of bamboo skin sheets from inside to outside after applying flowing resin;

the carriage main body is provided with a plurality of window holes, and each window hole is provided with a porthole;

the front wall is installed at the front end of the carriage main body and is obtained by tiling annular bamboo strip curtains and axial bamboo strip curtains in a staggered manner, and performing multi-layer heating and pressing molding after applying flowing resin;

the rear wall is installed at the rear end of the carriage main body and is obtained by tiling the annular bamboo strip curtains and the axial bamboo strip curtains in a staggered manner, applying flowing resin and then performing multi-layer heating and pressing molding;

the length direction of each bamboo strip of the circumferential bamboo strip curtain is consistent with the length direction of the circumferential bamboo strip curtain, and the length direction of each bamboo strip of the axial bamboo strip curtain is consistent with the width direction of the axial bamboo strip curtain;

the underframe is assembled at the bottom of the carriage main body.

2. The bamboo-wrapped carriage as claimed in claim 1, wherein a waterproof breathable film is further wrapped on the inner side of the carriage body, the waterproof breathable film is formed by laying pp non-woven fabrics and high polymer films in a crossed manner to maintain the air quality in the carriage, and a protective layer is further sprayed on the outer side of the carriage body, and the protective layer is one of unsaturated resin, epoxy resin, polyurethane resin and polyurea resin.

3. The bamboo-wound passenger car compartment of claim 1, wherein the bamboo skin curtain of the main compartment body comprises a first circumferential bamboo skin curtain group, a first axial bamboo skin curtain group, a second circumferential bamboo skin curtain group and a second axial bamboo skin curtain group which are wound from inside to outside in sequence, wherein,

the first annular bamboo strip curtain group comprises 2-5 layers of annular bamboo strip curtains, and the thickness of the first annular bamboo strip curtain group is 3.6-8 mm;

the first axial thin bamboo strip curtain group comprises 4-10 layers of axial thin bamboo strip curtains, and the thickness of the first axial thin bamboo strip curtain group is 7.2-18 mm;

the second annular bamboo split curtain group comprises 5-10 layers of annular bamboo split curtains, and the thickness of the second annular bamboo split curtain group is 8-18 mm;

the second axial bamboo strip curtain group comprises 2-5 layers of axial bamboo strip curtains, and the thickness of the second axial bamboo strip curtain group is 3.6-9 mm.

4. The bamboo-wound passenger car carriage according to claim 3, wherein the first and second axial bamboo split curtain groups are the same in length, and both ends of the first and second axial bamboo split curtain groups exceed the second annular bamboo split curtain group, so that the longitudinal section of the top of the carriage body is i-shaped.

5. The bamboo-wound passenger car compartment of claim 3, wherein the first and second axial bamboo strips are the same in length, a plurality of groups are arranged between the first and second axial bamboo strips, and a distance exists between two adjacent second axial bamboo strips, the front ends of the first and second axial bamboo strips exceed the second axial bamboo strips close to the front wall, and the rear ends of the first and second axial bamboo strips exceed the second axial bamboo strips close to the rear wall.

6. The bamboo-wound passenger car compartment as claimed in claim 4 or 5, wherein each gap between the first and second axial bamboo strips is filled with a filler selected from polyurethane foam, balsa, straw rope and/or straw.

7. The bamboo-wound carriage as claimed in claim 1, wherein the resin is formaldehyde-free resin or polyurethane resin, the weight ratio of the resin in the carriage body is 50-60%, and the curing temperature of the resin is 80-120 ℃.

8. The bamboo-wound carriage as claimed in claim 1, wherein the front wall is made of aluminum alloy, weathering steel, stainless steel or bamboo composite plate, and the rear wall is made of aluminum alloy, weathering steel, stainless steel or bamboo composite plate.

9. The bamboo-wrapped passenger car compartment as claimed in claim 8, wherein the front wall and the rear wall made of bamboo composite boards are manufactured by the following laying process:

the annular bamboo skin curtains and the axial bamboo skin curtains are mutually and alternately paved, and multi-layer pressing forming is carried out at the temperature of 80-120 ℃ after flowing resin is applied, the bamboo skin curtains which are positioned at the outermost side and the innermost side are all of the same type, and the bamboo skin curtain in the same type is the annular bamboo skin curtain or the axial bamboo skin curtain.

10. The method for preparing the bamboo-wound carriage of the passenger car as claimed in any one of claims 1 to 9, wherein the method comprises the following steps:

1) machine shaping of carriage main body

Installing a bamboo skin curtain formed by weaving and connecting a plurality of bamboo skin sheets on a core mould, sequentially winding and forming from inside to outside in a layering mode after applying flowing resin, and then heating and curing at the temperature of 80-120 ℃ to form a carriage main body formed by winding a plurality of layers of bamboo skin curtains together;

2) the front wall and the rear wall which adopt the bamboo composite board are respectively processed and formed

The annular bamboo skin curtain and the axial bamboo skin curtain are mutually and alternately paved, and after the flowing resin is applied, the multilayer pressing forming is carried out at the temperature of 80-120 ℃, so that a front wall and a rear wall are respectively formed; in the front wall and the rear wall, the bamboo skin curtains at the outermost side and the innermost side are all of the same type, namely, the bamboo skin curtains are all annular bamboo skin curtains or axial bamboo skin curtains;

3) porthole installation

A window hole with a small outside and a large inside is formed in the side face of the carriage main body, a port close to the inner wall of the carriage main body is in a slope shape, and then a window frame of a porthole, double-layer sound-proof glass and a protective sleeve are sequentially installed from outside to inside;

4) assembly of carriage

The front wall and the rear wall are respectively assembled at the front end and the rear end of the carriage body, and then the underframe is installed at the bottom of the carriage body.

Technical Field

The invention belongs to the field of passenger cars, and particularly relates to a passenger car compartment and a manufacturing method thereof.

Background

At present, vehicle body frameworks of a bus, a minibus, a commercial vehicle and the like mainly adopt weather-resistant steel/stainless steel and aluminum alloy, and the weather-resistant steel/stainless steel and aluminum alloy vehicle body frameworks have the characteristics of light weight, strong bearing capacity, long service life and the like, but the metal material has high energy consumption and high pollution in the production process and does not have the characteristics of heat preservation, frost resistance, sound insulation, noise reduction and the like. The bamboo-wound composite material which is renewable as a raw material, green, low-carbon, energy-saving, environment-friendly, heat-insulating and sound-insulating is tried to be applied to the field of transportation, and large vehicle body structures such as a bamboo-wound rail vehicle body with the length of 25.5 meters and the width of 3.2 meters are developed at present.

The carriage observation window is an important component of the car body, and the size and the layout of the carriage observation window can influence the safety of the car body structure wound by bamboo. The conventional car observation windows of the bus, the minibus, the commercial car and the like are generally arranged between frames, the opening size is large, the installation form is complex, and the car observation windows are seriously damaged when an accident happens.

Disclosure of Invention

Aiming at the defects or the improvement requirements of the prior art, the invention provides the bamboo-wound carriage and the preparation method thereof, wherein the self structure and the application characteristics of the bamboo-wound carriage are comprehensively considered, and the structure, the key structure forming parameters and other aspects of the carriage are correspondingly designed, and more practical tests show that the carriage still has higher structural strength even under the condition that the carriage needs to be provided with a plurality of window holes, the structural damage to the carriage main body can be effectively reduced, and the bamboo-wound carriage has the advantages of good sealing property and stability, long service life, convenience in construction and installation and the like.

To achieve the above object, according to one aspect of the present invention, there is provided a bamboo-wrapped passenger car body, characterized by comprising a car body, a front wall, a rear wall, and an underframe, wherein,

the carriage main body is formed by sequentially winding a plurality of layers of bamboo skin curtains formed by weaving and connecting a plurality of bamboo skin sheets from inside to outside after applying flowing resin;

the carriage main body is provided with a plurality of window holes, and each window hole is provided with a porthole;

the front wall is installed at the front end of the carriage main body and is obtained by tiling annular bamboo strip curtains and axial bamboo strip curtains in a staggered manner, and performing multi-layer heating and pressing molding after applying flowing resin;

the rear wall is installed at the rear end of the carriage main body and is obtained by tiling the annular bamboo strip curtains and the axial bamboo strip curtains in a staggered manner, applying flowing resin and then performing multi-layer heating and pressing molding;

the length direction of each bamboo strip of the circumferential bamboo strip curtain is consistent with the length direction of the circumferential bamboo strip curtain, and the length direction of each bamboo strip of the axial bamboo strip curtain is consistent with the width direction of the axial bamboo strip curtain;

the underframe is assembled at the bottom of the carriage main body.

Preferably, the inside of carriage main part still has the winding of a layer of waterproof ventilated membrane, and this waterproof ventilated membrane is that pp non-woven fabrics and polymer film are alternately laid each other and form to keep the interior air quality of carriage, the outside of carriage main part still sprays a layer of inoxidizing coating, the inoxidizing coating is one of unsaturated polyester, epoxy, polyurethane resin, polyurea resin.

Preferably, the bamboo split curtain of the carriage main body comprises a first circumferential bamboo split curtain group, a first axial bamboo split curtain group, a second circumferential bamboo split curtain group and a second axial bamboo split curtain group which are sequentially wound from inside to outside, wherein,

the first annular bamboo strip curtain group comprises 2-5 layers of annular bamboo strip curtains, and the thickness of the first annular bamboo strip curtain group is 3.6-8 mm;

the first axial thin bamboo strip curtain group comprises 4-10 layers of axial thin bamboo strip curtains, and the thickness of the first axial thin bamboo strip curtain group is 7.2-18 mm;

the second annular bamboo split curtain group comprises 5-10 layers of annular bamboo split curtains, and the thickness of the second annular bamboo split curtain group is 8-18 mm;

the second axial bamboo strip curtain group comprises 2-5 layers of axial bamboo strip curtains, and the thickness of the second axial bamboo strip curtain group is 3.6-9 mm.

Preferably, the length of first axial thin bamboo strips curtain group and second axial thin bamboo strips curtain group is the same, the both ends of first axial thin bamboo strips curtain group and second axial thin bamboo strips curtain group all surpass the annular thin bamboo strips curtain group of second makes the longitudinal section at the top of carriage main part is the I-shaped.

Preferably, first axial thin bamboo strips curtain group is the same with the length of second axial thin bamboo strips curtain group, set up the multiunit between first axial thin bamboo strips curtain group and the second axial thin bamboo strips curtain group the annular thin bamboo strips curtain group of second to there is the interval between two adjacent annular thin bamboo strips curtain groups, the front end of first axial thin bamboo strips curtain group and second axial thin bamboo strips curtain group all surpasss the annular thin bamboo strips curtain group of second that is close to preceding enclosing, the rear end of first axial thin bamboo strips curtain group and second axial thin bamboo strips curtain group all surpasss the annular thin bamboo strips curtain group of second that is close to after enclosing.

Preferably, each gap between the first axial bamboo strip curtain group and the second axial bamboo strip curtain group is filled with filler, and the filler is selected from polyurethane foam, balsa, straw ropes and/or straws.

Preferably, the resin is formaldehyde-free glue resin or polyurethane resin, the weight ratio of the resin in the carriage main body is 50-60%, and the curing temperature of the resin is 80-120 ℃.

Preferably, the front wall is made of aluminum alloy, weather-resistant steel, stainless steel or a bamboo composite plate, and the rear wall is made of aluminum alloy, weather-resistant steel, stainless steel or a bamboo composite plate.

Preferably, for the front wall and the rear wall which adopt the bamboo composite board, the front wall and the rear wall are manufactured by adopting the following laying process:

the annular bamboo skin curtains and the axial bamboo skin curtains are mutually and alternately paved, and multi-layer pressing forming is carried out at the temperature of 80-120 ℃ after flowing resin is applied, the bamboo skin curtains which are positioned at the outermost side and the innermost side are all of the same type, and the bamboo skin curtain in the same type is the annular bamboo skin curtain or the axial bamboo skin curtain.

According to another aspect of the invention, the preparation method of the bamboo-wound carriage of the passenger car is further provided, and is characterized by comprising the following steps:

1) machine shaping of carriage main body

Installing a bamboo skin curtain formed by weaving and connecting a plurality of bamboo skin sheets on a core mould, sequentially winding and forming from inside to outside in a layering mode after applying flowing resin, and then heating and curing at the temperature of 80-120 ℃ to form a carriage main body formed by winding a plurality of layers of bamboo skin curtains together;

2) the front wall and the rear wall which adopt the bamboo composite board are respectively processed and formed

The annular bamboo skin curtain and the axial bamboo skin curtain are mutually and alternately paved, and after the flowing resin is applied, the multilayer pressing forming is carried out at the temperature of 80-120 ℃, so that a front wall and a rear wall are respectively formed; in the front wall and the rear wall, the bamboo skin curtains at the outermost side and the innermost side are all of the same type, namely, the bamboo skin curtains are all annular bamboo skin curtains or axial bamboo skin curtains;

3) porthole installation

A window hole with a small outside and a large inside is formed in the side face of the carriage main body, a port close to the inner wall of the carriage main body is in a slope shape, and then a window frame of a porthole, double-layer sound-proof glass and a protective sleeve are sequentially installed from outside to inside;

4) assembly of carriage

The front and rear walls are assembled to the front and rear ends of the vehicle body, respectively, and then the underframe is mounted to the bottom of the vehicle body.

In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:

1) according to the invention, through the specific design of the composition structure and the arrangement mode of the carriage, after the carriage main body is connected with the front wall and the rear wall to form the carriage, the whole structure of the carriage is stable, the sealing property and the stability are good, the service life is long, and the construction and the installation are convenient;

2) the invention makes targeted research and design on key parameters of the specific forming process of the carriage main body, the front wall and the rear wall, can effectively avoid the defect of the changeability of the top layer of the carriage, simultaneously enables the carriage to cope with the longitudinally generated pulling force in the process of high-speed running, can ensure the quality and the performance stability under the long-term use environment, obviously improves a plurality of indexes such as local deformation resistance and the like, has good mechanical property and integral stress-free defect in the interior, and can obviously improve the deformation resistance of the carriage body at specific parts such as the top and the like;

3) the invention further optimizes and designs various aspects such as the specific structure types of the adopted bamboo skin curtains, the combination arrangement modes of the bamboo skin curtains, the forming process and key parameters thereof aiming at the specific requirements of different parts such as the carriage main body, the front wall structure, the rear wall structure and the like, correspondingly can more fully utilize the advantages of bamboo-based materials, has good integral tensile strength and buffering capacity, meets the requirements of the carriage strength and stress, and simultaneously completely avoids the use of a plurality of traditional fussy high-energy consumption processes;

4) the carriage structure of the bamboo-wound passenger car has the advantages of lightness, energy conservation and emission reduction, and effectively overcomes various performance defects of the existing metal carriage body, particularly the defect that the interior of the carriage body has good mechanical properties and is integrally stress-free, and the integral strength completely meets the requirements of national technical specifications.

5) The invention opens the window hole on the carriage main body made of the bamboo-wound composite material and installs the small porthole, can effectively reduce the damage to the carriage main body, is convenient to install, not only ensures enough impact strength and integral structure safety, but also has the functions of heat preservation, shock resistance, sound insulation and the like to improve the riding comfort, has the advantages of resource regeneration, energy conservation, low carbon, fire prevention, water resistance and the like, and can be applied to bamboo-wound buses, bamboo-wound minibuses, bamboo-wound commercial carriages and the like.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the front wall of the present invention;

FIG. 3 is a schematic view of the back wall of the present invention;

FIG. 4 is a schematic view of the port hole of the present invention mounted on the vehicle body;

FIG. 5 is a schematic view of the cabin body with the porthole of the present invention installed thereon;

FIG. 6 is a schematic view of a window opening provided in the cabin main body according to the present invention;

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

FIG. 8 is an exploded view of the porthole of the present invention;

fig. 9 is a schematic view of a partial cross section of a vehicle cabin in the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 9, a bamboo-wrapped carriage for a passenger car comprises a carriage body 1, a front wall 2, a rear wall 3 and an underframe 6, wherein,

the carriage main body 1 is formed by sequentially winding a plurality of layers of bamboo skin curtains formed by weaving and connecting a plurality of bamboo skin sheets from inside to outside after applying flowing resin;

the carriage main body 1 is provided with a plurality of window holes 4, and each window hole 4 is provided with a porthole 5; the porthole 5 is in the form of a vertical-like oval structure, and the advantages of this shape are: the area is small, the whole structure wound by the bamboo is not damaged, and the stability is improved; the porthole 5 comprises a window frame 51, double-layer sound-proof glass 52 and a protective sleeve 53 which are sequentially installed from outside to inside, an annular boss is arranged on the inner wall of the carriage main body 1 at the window hole 4 and extends into an annular groove in the window frame 51, and the width of the annular groove is slightly larger than that of the annular boss so as to facilitate the installation of the window frame 51; during installation, different positions are selected on the formed carriage body 1 according to different carriage types, seat requirements and the like, and holes are formed by adopting a hole forming device with the shape matched with the porthole 5. After the hole is opened, the window frame 51 is installed, the double-layer sound-insulating glass 52 with the sound-insulating effect is installed, the strong sealant is applied, and then the protective sleeve 53 is installed, so that the porthole 5 is installed.

According to the invention, the window hole 4 is arranged on the carriage main body 1 made of the bamboo-wound composite material, the small porthole 5 is arranged, the damage to the carriage main body 1 can be effectively reduced, the influence on the whole structure is small, no additional reinforcing structure is needed, the installation is convenient, and meanwhile, the carriage main body 1 made of the bamboo-wound composite material also has the advantages of heat preservation and sound insulation.

The front wall 2 is installed at the front end of the carriage main body 1, and the front wall 2 is obtained by tiling annular bamboo strips and axial bamboo strips in a staggered manner, and performing multi-layer heating and pressing molding after applying flowing resin;

the rear wall 3 is installed at the rear end of the carriage main body 1, and the rear wall 3 is obtained by tiling circumferential bamboo strip curtains and axial bamboo strip curtains in a mutually staggered manner, and performing multi-layer heating and pressing molding after applying flowing resin;

the length direction of each bamboo strip of the circumferential bamboo strip curtain is consistent with the length direction of the circumferential bamboo strip curtain, and the length direction of each bamboo strip of the axial bamboo strip curtain is consistent with the width direction of the axial bamboo strip curtain;

to explain more specifically, the bamboo splits need to be preprocessed: removing green bamboo and yellow bamboo of raw bamboo, cutting the rest part into bamboo strips, performing dehydration and anticorrosion treatment on the bamboo strips, and then connecting the bamboo strips into continuous long bamboo strip belts; the green bamboo part vascular bundle structure is too compact, resin is not easy to permeate, the green bamboo part vascular bundle structure is not suitable for being compounded with resin, the yellow bamboo part strength is too low, so the green bamboo part and the yellow bamboo part are removed, the rest part with high strength and resin can enter is selected, the bamboo is preferably selected from 3-4-year-old green and strong bamboo, the mechanical strength of the bamboo is best, the bamboo skin is subjected to dehydration and corrosion prevention treatment to ensure that the bamboo skin is not easy to corrode, the service life is long, a specific dehydration and corrosion prevention treatment mode is not limited, the dehydration mode can be used for removing moisture of the bamboo in a drying mode, a drying mode and the like to ensure that the moisture content of the bamboo is reduced to below 10%, and the corrosion prevention treatment can.

When the bamboo strip curtain is prepared, a plurality of bamboo strip sheets can be arranged at intervals and woven into a curtain shape, wherein the curtain comprises two types of circumferential bamboo strip curtains with the length direction consistent with the length direction of a single bamboo strip sheet and axial bamboo strip curtains with the width direction consistent with the length direction of the single bamboo strip sheet. And then, respectively winding the circumferential bamboo strip curtain and the axial bamboo strip curtain around the core mould for multiple layers, wherein the central line of the core mould is parallel to the width direction of the circumferential bamboo strip curtain and the width direction of the axial bamboo strip curtain, and the resin can be poured while winding, so that the circumferential bamboo strip curtain and the axial bamboo strip curtain are soaked in the resin and are bonded, cured and molded.

The underframe 6 is assembled at the bottom of the carriage body 1, the top of the underframe 6 is matched with the bottom of the carriage body 1 in shape so as to be matched with the carriage body 1, and the underframe 6 can be made of common steel materials.

Further, the inboard of carriage main part 1 has the winding of the waterproof ventilated membrane of one deck still, and this waterproof ventilated membrane is that pp non-woven fabrics and macromolecular membrane alternately lay each other and form to keep the interior air quality of carriage, the outside of carriage main part 1 has still the spraying one deck inoxidizing coating, can play the guard action, effectively reduces the outside harm to carriage main part 1, the inoxidizing coating is one of unsaturated polyester resin, epoxy, polyurethane resin, polyurea resin.

Further, the carriage body 1 comprises a first circumferential bamboo strip curtain group 11, a first axial bamboo strip curtain group 12, a second circumferential bamboo strip curtain group 13 and a second axial bamboo strip curtain group 15 which are sequentially wound from inside to outside, wherein,

the first circumferential bamboo strip curtain group 11 comprises 2-5 layers of circumferential bamboo strip curtains, and the thickness of the first circumferential bamboo strip curtain group 11 is 3.6-8 mm;

the first axial thin bamboo strip curtain group 12 comprises 4-10 layers of axial thin bamboo strip curtains, and the thickness of the first axial thin bamboo strip curtain group 12 is 7.2-18 mm;

the second annular bamboo strip curtain group 13 comprises 5-10 layers of annular bamboo strip curtains, and the thickness of the second annular bamboo strip curtain group 13 is 8-18 mm;

the second axial bamboo strip curtain group 15 comprises 2-5 layers of axial bamboo strip curtains, and the thickness of the second axial bamboo strip curtain group 15 is 3.6-9 mm.

The first annular thin bamboo strip curtain group 11, the first axial thin bamboo strip curtain group 12, the second annular thin bamboo strip curtain group 13 and the second axial thin bamboo strip curtain group 15 can be the same in length, and no other non-bamboo filler 14 exists, so that the carriage main body 1 can be regarded as a full-bamboo structure, the strength requirement is high, the size is large, and a passenger car with high load can adopt the full-bamboo structure.

Further, first axial thin bamboo strips curtain group 12 is the same with second axial thin bamboo strips curtain group 15's length, first axial thin bamboo strips curtain group 12 all surpasss with the both ends of second axial thin bamboo strips curtain group 15 the annular thin bamboo strips curtain group 13 of second, thereby makes the longitudinal section at the top of carriage main part 1 is the I-shaped. First hoop thin bamboo strips used for weaving curtain group 11 length after the winding technology shaping with first axial thin bamboo strips used for weaving curtain group 12 is the same with second axial thin bamboo strips used for weaving curtain group 15's length, enclose 2 before the installation and will get rid of one section of tip after 3 when enclosing, so that enclose 2 after and enclose 3 before the installation, first hoop thin bamboo strips used for weaving curtain group plays the effect that improves 1 global rigidity of carriage main part, the easily deformable defect in top layer of carriage main part 1 has effectively been avoided like this, form the I-shaped simultaneously, be favorable to the passenger train carriage to correspond the pulling force of vertical production at the in-process that traveles at a high speed.

Further, first axial thin bamboo strip curtain group 12 is the same with second axial thin bamboo strip curtain group 15's length, set up the multiunit between first axial thin bamboo strip curtain group 12 and the second axial thin bamboo strip curtain group 15 second annular thin bamboo strip curtain group 13 to there is the interval between two adjacent second annular thin bamboo strip curtain group 13, first axial thin bamboo strip curtain group 12 and second axial thin bamboo strip curtain group 15's front end all surpasss the second annular thin bamboo strip curtain group 13 that is close to preceding enclose 2, first axial thin bamboo strip curtain group 12 and second axial thin bamboo strip curtain group 15's rear end all surpasss the second annular thin bamboo strip curtain group 13 that is close to enclose 3 after, can be like this in the longitudinal section at carriage main part 1 top be horizontal ladder form, more be favorable to the passenger train carriage to correspond the pulling force of vertical production in the in-process of traveling at a high speed.

Further, because the both ends of first axial thin bamboo strips curtain group 12 and second axial thin bamboo strips curtain group 15 all surpass the both ends of second annular thin bamboo strips curtain group 13, consequently be formed with the clearance between first axial thin bamboo strips curtain group 12 and the second axial thin bamboo strips curtain group 15, each clearance department all has filler 14, filler 14 is selected from polyurethane foam, balsa, straw rope and/or straw, sets up filler 14 in clearance department and helps improving the bulk strength of carriage main part 1, compares in foretell full bamboo structure, and this kind of structure that sets up filler 14 can satisfy the intensity requirement under some occasions of carriage main part 1, can effectively practice thrift the whole manufacturing cost of passenger train carriage again.

Further, the resin is formaldehyde-free glue resin or polyurethane resin, the weight ratio of the resin in the carriage main body 1 is 50% -60%, the curing temperature of the resin is 80-120 ℃, the curing time is determined according to the specific carriage model, the resin is completely cured, and the resin is required to be free of harmful odor such as formaldehyde. .

Further, the front wall 2 is made of aluminum alloy, weather-resistant steel, stainless steel or a bamboo composite plate, and the rear wall 3 is made of aluminum alloy, weather-resistant steel, stainless steel or a bamboo composite plate; for the front wall 2 and the rear wall 3 which adopt the bamboo composite board, the front wall and the rear wall are both manufactured by adopting the following laying process:

the annular bamboo skin curtains and the axial bamboo skin curtains are mutually and alternately paved, and multi-layer pressing forming is carried out at the temperature of 80-120 ℃ after flowing resin is applied, the bamboo skin curtains which are positioned at the outermost side and the innermost side are all of the same type, and the bamboo skin curtain in the same type is the annular bamboo skin curtain or the axial bamboo skin curtain.

According to another aspect of the invention, the preparation method of the bamboo-wound passenger car compartment is also provided, and comprises the following steps:

1) machine shaping of carriage body 1

Installing a bamboo skin curtain formed by weaving and connecting a plurality of bamboo skin sheets on a core mould, sequentially winding and forming from inside to outside in a layering mode after applying flowing resin, and then heating and curing at the temperature of 80-120 ℃ to form a carriage main body 1 formed by winding a plurality of layers of bamboo skin curtains together; selecting a core mould according to the size (bus, minibus and commercial car) of a carriage main body 1 of the passenger car, and then winding and molding the woven bamboo strip curtain on the core mould according to a layering process;

2) the front wall 2 and the rear wall 3 which adopt the bamboo composite board are respectively processed and formed

The annular bamboo skin curtain and the axial bamboo skin curtain are mutually and alternately paved, and after the flowing resin is applied, the multilayer pressing forming is carried out at the temperature of 80-120 ℃, so that the front wall 2 and the rear wall 3 are respectively formed; in the front wall 2 and the rear wall 3, the bamboo skin curtains at the outermost side and the innermost side are all of the same type, namely, the bamboo skin curtains are all annular bamboo skin curtains or axial bamboo skin curtains;

3) installation of porthole 5

A window hole 4 with a small outside and a large inside is formed in the carriage body 1, a port close to the inner wall of the carriage body 1 is in a slope shape, and then a window frame 51 of a porthole 5, double-layer sound-proof glass 52 and a protective sleeve 53 are sequentially installed from outside to inside;

4) assembly of carriage

The cowl 2 and the cowl 3 are respectively assembled to the front end and the rear end of the vehicle body 1, and then the work of installing the front window and the rear window can be performed on the cowl 2 and the cowl 3, and then the under frame 6 is installed to the bottom of the vehicle body 1.

The directions of "front" and "rear" in the present invention are the same as those of the "front" and "rear" directions of the vehicle compartment, which are conventionally referred to.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.