Belt conveyor vestibule with upper truss and lower truss

Abstract

The upper-lower double-layer truss belt conveyor vestibule comprises chord member assemblies, web member assemblies, two rows of longitudinal pressing rods, a cross beam assembly, a plurality of supporting leg longitudinal beams and a flat plate, the chord member assemblies are provided with two upper chord members and two lower chord members which are horizontally spaced, and the two web member assemblies are connected between the two upper chord members and the lower chord members right opposite to the two upper chord members correspondingly; the two rows of longitudinal pressing rods are arranged between the two upper chords and the lower chords right opposite to the upper chords respectively, and the multiple longitudinal pressing rods in each row are connected with the web member assembly. The cross beam assembly comprises a plurality of upper chord cross beams connected between the two upper chord members, a plurality of lower chord cross beams connected between the two lower chord members and a plurality of supporting leg cross beams connected between the two web member assemblies, and the supporting leg longitudinal beams are connected between every two adjacent lower chord cross beams and between every two adjacent supporting leg cross beams. The flat plates are fixedly laid on the supporting longitudinal beams. The method has the beneficial effects that the utilization efficiency of the truss rod pieces is improved, the steel amount is reduced, the plane space is saved, and construction is easy.

Description

Technical Field

[0001] The invention relates to the technical field of building structure engineering, and in particular to an upper and lower double-layer truss belt conveyor corridor. Background Art

[0002] With the vigorous development of the construction industry, the transportation volume of raw materials and finished products between different processes of the production line is increasing, and steel structure corridors have obvious advantages in transportation. Single corridors, double corridors and even triple corridors have all appeared. The difference between these corridors lies in the number of belt conveyors passing through the same corridor. In conventional design, several belt conveyors in the corridor are arranged side by side along the direction of travel of the corridor, and pedestrian walkways are set between the belt conveyors. The overall cross-section of the corridor forms a flat rectangle.

[0003] The corridor includes an upper chord and a lower chord that are relatively distributed up and down. The upper chord and the lower chord are distributed along the length of the corridor. As the span of the corridor increases, the cross-sectional area of ​​the upper and lower chords will also increase, which will increase the use of steel. It is necessary to reduce the manufacturing cost of the corridor while ensuring the transportation capacity of the corridor. Summary of the invention

[0004] In order to solve the above problems, the present application provides an upper and lower double-layer truss belt conveyor corridor.

[0005] The present application provides an upper and lower double-layer truss belt conveyor corridor, including a chord assembly, a web assembly, two rows of longitudinal compression rods, a crossbeam assembly, a plurality of leg longitudinal beams and a flat plate. The chord assembly is provided with two upper chords horizontally spaced apart and two lower chords correspondingly arranged below the two upper chords, the two web assemblies are respectively connected between the two upper chords and the lower chords opposite thereto, the arrangement direction of each row of longitudinal compression rods is the length direction of the upper chords, the two rows of longitudinal compression rods are respectively arranged between the two upper chords and the lower chords opposite thereto, the plurality of longitudinal compression rods belonging to each row are connected to the web assembly, the crossbeam assembly includes a plurality of upper chord crossbeams connected between the two upper chords, a plurality of lower chord crossbeams connected between the two lower chords, and a plurality of leg crossbeams connected between the two web assemblies, the plurality of leg longitudinal beams are connected between two adjacent lower chord crossbeams and between two adjacent leg crossbeams, and the flat plate is fixedly laid on the supporting longitudinal beams.

[0006] In some embodiments, the web assembly includes:

[0007] Multiple vertical web members, both ends of which are respectively hinged to the upper chord and the lower chord, and multiple longitudinal compression bars belonging to each row are hinged to the two adjacent vertical web members;

[0008] There are two layers of diagonal web members, each layer is provided with a plurality of diagonal web members, and the plurality of diagonal web members belonging to the two layers are respectively hinged between the longitudinal compression rod and the upper chord rod and between the longitudinal compression rod and the lower chord rod.

[0009] In some embodiments, the upper chord cross beam is rigidly connected to the top end of the vertical web member, the leg cross beam is rigidly connected to the vertical web member, and the lower chord cross beam is hinged to the lower chord member.

[0010] In some embodiments, the vertical web members are fixedly connected to the node plate, and the diagonal web members and the longitudinal compression members are hinged to the node plate.

[0011] In some embodiments, multiple diagonal web members belonging to each layer are arranged in sequence along the length direction of the upper chord, and along the arrangement direction are a single first diagonal web member distributed along the first direction, multiple second diagonal web members distributed along the second direction, multiple third diagonal web members distributed along the first direction, and a single fourth diagonal web member distributed along the second direction, and the first direction and the second direction are vertically symmetrical.

[0012] In some embodiments, the angles between the first direction and the second direction and the vertical direction are controlled to be between 35° and 55°.

[0013] In some embodiments, the plate comprises:

[0014] The bottom plate of the belt conveyor is fixedly laid on the supporting longitudinal beam;

[0015] Two walkway plates are respectively arranged on opposite sides of the bottom plate of the belt conveyor. The walkway plates are fixedly laid on the supporting longitudinal beams, and the walkway plates are fixedly erected on the longitudinal pressure rods.

[0016] In some embodiments, the upper and lower double-layer truss belt conveyor corridor further includes:

[0017] The supporting panels are respectively connected between the two upper chords and between the two lower chords.

[0018] In some embodiments, the upper and lower double-layer truss belt conveyor corridor further includes:

[0019] Two end portal frames are respectively located at the two ends of the length of the upper chord, and the end portal frames include a portal beam and two portal columns rigidly connected to the two ends of the portal beam. The portal beam is fixedly connected to the upper chord, and the portal columns are fixedly connected to the upper chord, the lower chord, the web assembly and the longitudinal compression bars adjacent thereto;

[0020] The crossbeam assembly also includes:

[0021] The first portal cross beam has two ends rigidly connected to the two portal columns, the first portal cross beam and the lower chord cross beam are at the same height, and the outrigger longitudinal beam is also connected between the first portal cross beam and the lower chord cross beam adjacent thereto;

[0022] The second portal crossbeam is rigidly connected to the two portal columns at both ends. The second portal crossbeam and the outrigger crossbeam are at the same height. The outrigger longitudinal beam is also connected between the second portal crossbeam and the outrigger crossbeam adjacent thereto.

[0023] In some embodiments, the upper chord is made of double angle steel or H-shaped steel, and the lower chord is made of narrow flange H-shaped steel.

[0024] The beneficial effects of the present application are as follows: providing an upper and lower double-layer truss belt conveyor corridor, comprising a chord assembly, a web assembly, two rows of longitudinal compression rods, a crossbeam assembly, a plurality of leg longitudinal beams and a flat plate, the chord assembly providing an upper chord and a lower chord, the web assembly connected between the upper chord and the lower chord, the crossbeam assembly comprising a plurality of upper chord crossbeams and a plurality of lower chord crossbeams, a plurality of upper chord crossbeams connected between two upper chords, a plurality of lower chord crossbeams connected between two lower chords, a plurality of leg longitudinal beams connected between two adjacent lower chord crossbeams, so that the corridor presents a truss structure;

[0025] The present application adds two rows of longitudinal compression rods, one row of longitudinal compression rods is arranged between an upper chord and a lower chord below it, and the other row of longitudinal compression rods is arranged between another upper chord and a lower chord below it, and the arrangement direction of each row of longitudinal compression rods is the length direction of the upper chord, and there is a connection relationship between the longitudinal compression rods and the web bar assembly, and the crossbeam assembly also includes a plurality of leg crossbeams, and the plurality of leg crossbeams are connected between the two web bar assemblies, and there are also a plurality of leg longitudinal beams connected between two adjacent leg crossbeams, and the flat plate is fixedly laid on the supporting longitudinal beams, thereby forming a lower gallery space located below the leg crossbeams and an upper gallery space located above the leg crossbeams, and successfully realizing the purpose of changing the original parallel belt conveyor corridors into upper and lower stacked belt conveyor corridors;

[0026] The present application changes the original flat rectangular corridor section structure into a tall and thin rectangular corridor section structure. In view of the large load of multiple belt conveyors, the structure of the present application doubles the corridor rise. By increasing the rise of the truss corridor, the purpose of relatively reducing the cross-sectional area of ​​the upper and lower chords is achieved. Especially in the case of a large span of more than 30 meters, the corridor of the present application shows good economic benefits, the truss rods can be fully utilized, and the amount of steel used can be saved by about 5%;

[0027] The thin and tall rectangular corridor section structure provided by the present application has the advantage of occupying less space in the plane layout, so that the plane size of the transfer station or related monomers connected at both ends of the corridor can be optimized, without increasing the axis network size for the sake of wide corridor. The stacked corridor structure provided by the present application can directly enter different floors or functional areas of the buildings at both ends, providing the possibility for the optimization of the process flow;

[0028] The stacked corridor structure provided in the present application is easy to assemble during construction and hoisting, and is relatively less prone to defects such as twisting during assembly;

[0029] In summary, the stacked corridor structure provided in the present application has the beneficial effects of improving the utilization efficiency of truss rods, saving steel materials, saving plane space, simple construction, and economical and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.

[0031] Figure 1 An elevation view of an upper and lower double-layer truss belt conveyor corridor provided for this application;

[0032] Figure 2 A cross-sectional view of an upper and lower double-layer truss belt conveyor corridor provided in this application;

[0033] Figure 3 A cross-sectional view of the end door frame of an upper and lower double-layer truss belt conveyor corridor provided in this application.

[0034] The attached drawings are marked with: 1-upper chord, 2-lower chord, 3-diagonal web member, 31-first diagonal web member, 32-second diagonal web member, 33-third diagonal web member, 34-fourth diagonal web member, 4-vertical web member, 5-upper chord cross beam, 6-lower chord cross beam, 7-gantry beam, 8-gantry column, 10-support leg longitudinal beam, 11-support leg cross beam, 12-belt conveyor bottom plate, 13-walkway plate, 14-longitudinal pressure rod, 15-first gantry cross beam, 16-second gantry cross beam. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0036] In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific examples of processes and materials, but those of ordinary skill in the art may recognize the application of other processes and / or the use of other materials.

[0037] This application provides an upper and lower double-layer truss belt conveyor corridor, hereinafter referred to as this corridor structure, please refer to Figure 1 and Figure 2 , Figure 1 The longitudinal schematic diagram of the corridor structure is shown. Figure 2The transverse cross-sectional view of the corridor structure is shown, and the corridor structure includes a chord assembly, two web assembly, two rows of longitudinal compression rods 14, a crossbeam assembly, a plurality of leg longitudinal beams 10 and a flat plate.

[0038] The chord assembly is provided with two upper chords 1 and two lower chords 2, the upper chords 1 and the lower chords 2 are distributed longitudinally, the two upper chords 1 are located at the same height, the two lower chords 2 are located at the same height, the two upper chords 1 are in the same horizontal plane, the two upper chords 1 are spaced apart from each other, and the two upper chords 1 are parallel to each other, and the two lower chords 2 are respectively located directly below the two upper chords 1, and the two upper chords 1 are also relatively parallel.

[0039] The web member assembly is connected between the upper chord 1 and the lower chord 2. Specifically, one web member assembly is connected between one upper chord 1 and the lower chord 2 thereunder, and another web member assembly is connected between another upper chord 1 and the lower chord 2 thereunder. The crossbeam assembly includes a plurality of upper chord crossbeams 5 and a plurality of lower chord crossbeams 6. The plurality of upper chord crossbeams 5 are connected between two upper chords 1, the plurality of lower chord crossbeams 6 are connected between two lower chords 2, and a plurality of leg longitudinal beams 10 are connected between two adjacent lower chord crossbeams 6, so that the corridor structure as a whole presents a truss structure.

[0040] Please refer to Figure 2 , Figure 2 The relative positions of the two rows of longitudinal compression rods 14 in the corridor structure are shown. The two rows of longitudinal compression rods 14 are respectively arranged between the two upper chord rods 1 and the lower chord rods 2 opposite to them. One row of longitudinal compression rods 14 is arranged between an upper chord rod 1 and the lower chord rod 2 below it, and the other row of longitudinal compression rods 14 is arranged between another upper chord rod 1 and the lower chord rod 2 below it. Please refer to Figure 1 The arrangement direction of each row of longitudinal compression rods 14 is the same as the length direction of the upper chord 1. There is a connection relationship between the longitudinal compression rods 14 and the web rod assembly. The multiple longitudinal compression rods 14 belonging to each row are connected to the web rod assembly, which ensures the structural stability of the longitudinal compression rods 14.

[0041] Please refer to Figure 2 The crossbeam assembly also includes a leg crossbeam 11. A plurality of leg crossbeams 11 are sequentially spaced in the length direction of the upper chord 1. The leg crossbeams 11 are connected between the two web members. Figure 2 The multiple leg longitudinal beams 10 of the corridor structure are connected between two adjacent leg cross beams 11. Figure 1 It is shown that two leg longitudinal beams 10 are spaced apart in the transverse direction of the corridor structure, and a plurality of leg longitudinal beams 10 are arranged in sequence in the longitudinal direction of the corridor structure. Figure 2 , a plurality of leg longitudinal beams 10 are also connected between two adjacent lower chord cross beams 6 .

[0042] One of the functions of the leg longitudinal beam 10 is to provide an installation position for the fixed laying of the flat plate. By fixing the flat plate on the supporting longitudinal beam, a lower corridor space located below the leg cross beam 11 and an upper corridor space located above the leg cross beam 11 are formed, thereby successfully achieving the purpose of changing the original parallel belt conveyor corridors into upper and lower stacked belt conveyor corridors.

[0043] The present application changes the original flat rectangular corridor cross-section structure into a tall and thin rectangular corridor cross-section structure. In view of the large load of multiple belt conveyors, the structure of the present application increases the corridor rise by about one time, and achieves the purpose of relatively reducing the cross-sectional area of ​​the upper and lower chords 2 by increasing the rise of the truss-type corridor. Especially in the case of a large span of more than 30 meters, the corridor of the present application shows good economic benefits, the truss rods can be fully utilized, and the amount of steel used can be saved by about 5%.

[0044] The tall and thin rectangular corridor profile structure provided in the present application has the advantage of occupying less space in the plane layout, so that the plane size of the transfer station or related monomers connected at both ends of the corridor can be optimized without increasing the axis network size for the sake of a wide corridor. The stacked corridor structure provided in the present application can directly enter the different floors or functional areas of the buildings at both ends, providing the possibility for the optimization of the process flow.

[0045] The stacked corridor structure provided in the present application is easy to assemble during the construction and hoisting process, and is relatively less prone to defects such as twisting during assembly.

[0046] In some embodiments, see Figure 2 The flat plate includes a belt conveyor bottom plate 12 and two walkway plates 13. The two walkway plates 13 are respectively arranged on opposite sides of the belt conveyor bottom plate 12. The belt conveyor bottom plate 12 is fixedly laid on the supporting longitudinal beam. The belt conveyor bottom plate 12 is generally a steel plate. The belt conveyor bottom plate 12 provides an installation position for the belt conveyor. The walkway plate 13 is fixedly laid on the supporting longitudinal beam, and the walkway plate 13 is fixedly erected on the longitudinal pressure rod 14. The walkway plate 13 provides a walking passage.

[0047] In some embodiments, the upper and lower double-layer truss belt conveyor corridor also includes a support panel, which is not shown in the figure. Part of the support panel is connected between the two upper chords 1, and the other part of the support panel is connected between the two lower chords 2. The support panel not only covers the upper top and lower bottom of the corridor structure, but also has a beneficial effect on the structural stability of the corridor structure. It should be noted that on the basis of setting up, for example, the upper chord beam 5 and the lower chord beam 6, the support panel needs to avoid the upper chord beam 5 and the lower chord beam 6. It is best to connect the support panel with the upper chord beam 5 or the lower chord beam 6, so as to further improve the structural stability of the corridor structure.

[0048] In some embodiments, the upper and lower double-layer truss belt conveyor corridor further includes two end portals, and the two end portals are respectively located at the two ends of the length of the upper chord rod 1. Figure 3 The cross-section view of the end door frame is shown, please refer to Figure 3 The end gantry includes a gantry beam 7 and two gantry columns 8. The gantry beam 7 is located at the top and is fixedly connected to the upper chord 1. The gantry columns 8 are distributed vertically. The two gantry columns 8 are connected to the two ends of the gantry beam 7 respectively, and the connection relationship between the gantry columns 8 and the gantry beam 7 is limited to rigid connection, which improves the structural stability of the end gantry. In addition, please refer to Figure 1 and Figure 3 Regarding the connection relationship of the portal column 8, there are also the following: the portal column 8 and the upper chord rod 1 are fixedly connected, the portal column 8 and the lower chord rod 2 are fixedly connected, the portal column 8 and the web bar assembly are fixedly connected, and the portal column 8 and the adjacent longitudinal compression rod 14 are fixedly connected. Through the all-round connection relationship, the structural stability of the end portal is further improved.

[0049] Please refer to Figure 3 , Figure 3 The first portal crossbeam 15 and the second portal crossbeam 16 are displayed, and both of them belong to the crossbeam assembly. The two ends of the first portal crossbeam 15 are rigidly connected to the two portal columns 8, the first portal crossbeam 15 and the lower chord crossbeam 6 are at the same height, and the leg longitudinal beam 10 is also connected between the first portal crossbeam 15 and the lower chord crossbeam 6 adjacent thereto. The two ends of the second portal crossbeam 16 are rigidly connected to the two portal columns 8, the second portal crossbeam 16 and the leg crossbeam 11 are at the same height, and the leg longitudinal beam 10 is also connected between the second portal crossbeam 16 and the leg crossbeam 11 adjacent thereto. The first portal crossbeam 15 and the second portal crossbeam 16 can improve the structural stability of the portal columns 8, and can also provide support for the slab, which is beneficial to the overall stability of the corridor structure.

[0050] In some embodiments, see Figure 2 The upper chord 1 is made of double angle steel or H-shaped steel, and the lower chord 2 is made of narrow flange H-shaped steel.

[0051] In some embodiments, see Figure 1The web member assembly includes a plurality of vertical web members 4 and two layers of diagonal web members 3. Each layer of diagonal web members 3 is provided with a plurality of diagonal web members 3. The two ends of the plurality of vertical web members 4 are respectively hinged to the upper chord 1 and the lower chord 2. The vertical web members 4 are connected in an uninterrupted manner from top to bottom. The vertical web members 4 are slotted at the position where they are connected to the upper chord 1 and the lower chord 2. The installation of the hinged structure is successfully completed by slotting. The longitudinal compression rod 14 is hinged to the vertical web member 4. The plurality of longitudinal compression rods 14 are hinged to the two adjacent vertical web members 4. The two layers of diagonal web members 3 are presented as an upper layer and a lower layer. The plurality of diagonal web members 3 of the upper layer are respectively hinged between the longitudinal compression rod 14 and the upper chord 1, and the plurality of diagonal web members 3 of the lower layer are respectively hinged between the longitudinal compression rod 14 and the lower chord 2.

[0052] In this embodiment, by limiting the connection mode between the longitudinal compression rod 14 and the vertical web member 4 to hinged connection, the purpose of reducing the in-plane calculated length of the vertical web member 4 is achieved, and the diagonal web member 3 can also be helped to form a reasonable angle to achieve effective force transmission.

[0053] In some embodiments, the upper chord beam 5 is rigidly connected to the top of the vertical web member 4, the leg beam 11 is rigidly connected to the vertical web member 4, and the lower chord beam 6 is hinged to the lower chord member 2. The rigid connection between the upper chord beam 5 and the vertical web member 4 reduces the out-of-plane calculated length of the vertical web member 4 and increases the torsional strength of the corridor as a whole. The hinge connection between the lower chord beam 6 and the lower chord member 2 ensures the integrity of the frame.

[0054] In view of the above-mentioned connection relationship between the vertical web members 4 and the longitudinal compression members 14, and the diagonal web members 3 and the longitudinal compression members 14, a node plate is additionally provided in some embodiments (schematically shown in the figure), the node plate is fixedly connected to the vertical web members 4, and the diagonal web members 3 and the longitudinal compression members 14 are both hinged to the node plate.

[0055] In some embodiments, see Figure 1 , multiple diagonal braces 3 belonging to each layer are arranged in sequence along the length direction of the upper chord 1, and along the arrangement direction, there are a single first diagonal brace 31 distributed along the first direction, multiple second diagonal braces 32 distributed along the second direction, multiple third diagonal braces 33 distributed along the first direction, and a single fourth diagonal brace 34 distributed along the second direction, and the first direction and the second direction are symmetrical about the vertical direction. Through the above arrangement, the first diagonal brace 31 and the fourth diagonal brace 34 located at the end are compression members, and the second diagonal brace 32 and the third diagonal brace 33 located in the middle are tension members.

[0056] In some embodiments, the angles between the first direction, the second direction and the vertical direction are all controlled between 35° and 55°. By limiting the diagonal brace 3 to a reasonable distribution angle, the diagonal brace 3 meets the conditions of a two-force rod component, thereby achieving effective force transmission.

[0057] In summary, the stacked corridor structure provided by the present application has the beneficial effects of improving the utilization efficiency of truss rods, saving steel, saving plane space, simple construction, and economical and efficient. The stacked double-layer belt conveyor corridor provided by the present application has a large truss rise under the premise of ensuring the process clearance requirements, so that the truss rods are fully utilized when the corridor load is large. Especially in the case of a larger span of more than 30 meters, the comprehensive performance advantages of this type of structure are more obvious.

[0058] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0060] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An upper and lower double-layer truss belt conveyor corridor, characterized in that: include: A chord assembly, comprising two upper chords spaced horizontally apart and two lower chords correspondingly disposed below the two upper chords; Two web bar assemblies, respectively connected between the two upper chord bars and the lower chord bars directly opposite thereto; Two rows of longitudinal compression rods, each row is arranged in the length direction of the upper chord, the two rows of longitudinal compression rods are respectively arranged between the two upper chords and the lower chords directly opposite thereto, and the plurality of longitudinal compression rods belonging to each row are connected to the web member assembly; A cross beam assembly, comprising a plurality of upper chord cross beams connected between the two upper chord rods, a plurality of lower chord cross beams connected between the two lower chord rods, and a plurality of leg cross beams connected between the two web rod assemblies; A plurality of leg longitudinal beams connected between two adjacent lower chord beams and between two adjacent leg beams; The flat plate is fixedly laid on the supporting longitudinal beam.

2. The upper and lower double-layer truss belt conveyor corridor according to claim 1 is characterized in that: The web assembly comprises: A plurality of vertical web members, both ends of which are respectively hinged to the upper chord and the lower chord, and a plurality of the longitudinal compression rods belonging to each row are hinged to two adjacent vertical web members; There are two layers of diagonal web members, each layer is provided with a plurality of said diagonal web members, and the plurality of said diagonal web members belonging to the two layers are respectively hinged between the longitudinal compression rod and the upper chord rod and between the longitudinal compression rod and the lower chord rod.

3. The upper and lower double-layer truss belt conveyor corridor according to claim 2 is characterized in that: The upper chord cross beam is rigidly connected to the top end of the vertical web member, the leg cross beam is rigidly connected to the vertical web member, and the lower chord cross beam is hinged to the lower chord member.

4. The upper and lower double-layer truss belt conveyor corridor according to claim 2 is characterized in that: The vertical web members are fixedly connected with a node plate, and the diagonal web members and the longitudinal compression members are both hinged to the node plate.

5. The upper and lower double-layer truss belt conveyor corridor according to claim 2 is characterized in that: The multiple diagonal web members belonging to each layer are arranged in sequence along the length direction of the upper chord, and along the arrangement direction are a single first diagonal web member distributed along the first direction, a plurality of second diagonal web members distributed along the second direction, a plurality of third diagonal web members distributed along the first direction, and a single fourth diagonal web member distributed along the second direction, and the first direction is vertically symmetrical to the second direction.

6. The upper and lower double-layer truss belt conveyor corridor according to claim 5, characterized in that: The angles between the first direction and the second direction and the vertical direction are both controlled to be between 35° and 55°.

7. The upper and lower double-layer truss belt conveyor corridor according to claim 1, characterized in that: The plate comprises: The bottom plate of the belt conveyor is fixedly laid on the supporting longitudinal beam; Two walkway plates are respectively arranged on opposite sides of the bottom plate of the belt conveyor. The walkway plates are fixedly laid on the supporting longitudinal beams, and the walkway plates are fixedly erected on the longitudinal pressure rods.

8. The upper and lower double-layer truss belt conveyor corridor according to claim 1 is characterized in that: The upper and lower double-layer truss belt conveyor corridor also includes: The supporting panel is respectively connected between the two upper chords and between the two lower chords.

9. The upper and lower double-layer truss belt conveyor corridor according to claim 1, characterized in that: The upper and lower double-layer truss belt conveyor corridor also includes: Two end portal frames are respectively located at the two ends of the length of the upper chord, and the end portal frames include a portal beam and two portal columns rigidly connected to the two ends of the portal beam, the portal beam is fixedly connected to the upper chord, and the portal columns are fixedly connected to the upper chord, the lower chord, the web bar assembly and the longitudinal compression bars adjacent thereto; The crossbeam assembly further comprises: A first portal crossbeam, both ends of which are rigidly connected to the two portal columns, the first portal crossbeam and the lower chord crossbeam are at the same height, and the leg longitudinal beam is also connected between the first portal crossbeam and the lower chord crossbeam adjacent thereto; The second portal crossbeam has two ends rigidly connected to the two portal columns. The second portal crossbeam and the support leg crossbeam are at the same height. The support leg longitudinal beam is also connected between the second portal crossbeam and the support leg crossbeam adjacent to it.

10. The upper and lower double-layer truss belt conveyor corridor according to claim 1, characterized in that: The upper chord is made of double angle steel or H-shaped steel, and the lower chord is made of narrow flange H-shaped steel.

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