Large-span truss structure convenient to assemble

Abstract

The utility model provides a large-span truss structure convenient to assemble, and relates to the field of trusses, the large-span truss structure convenient to assemble comprises chord members, web members and horizontal sleeves, the chord members and the web members form the truss structure, the horizontal sleeves are used for inserting the chord members, and inserting sleeves used for inserting the web members are fixedly installed above the horizontal sleeves and on the side walls of the horizontal sleeves. According to the large-span truss structure convenient to assemble, the distance of a rod piece inserted into a horizontal sleeve and an insertion sleeve is determined through design and calculation, an insertion flange plate is fixed to a designated position and then welded, and the insertion flange plate and a fixed flange plate make contact in the assembling process and are fixed through bolts; after the insertion depth of the web member stressed in the vertical direction is determined, the threaded shaft is rotated to drive the supporting plate to move, so that the distance between the supporting plate and the end face is equal to the insertion depth of the web member, glue is injected into the supporting plate and the insertion sleeve for curing, then the web member is inserted into the corresponding insertion sleeve, and therefore the insertion length can be limited according to design requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to truss technical field, concretely is a large -span truss structure convenient to assemble. BACKGROUND

[0002] The length of the truss insertion node is not a fixed standard value, and the insertion length usually needs to ensure sufficient connection strength and reliable force transmission. The insertion length needs to consider the arrangement of a sufficient number of bolts and meet the bolt margin, spacing and other construction requirements. The insertion length is determined by structural mechanics calculation and relevant specifications according to the axial force.

[0003] A truss node support capable of adjusting direction and convenient to connect is disclosed in Chinese invention patent application publication specification CN219118394U, which comprises a lower chord connecting structure, a web connecting structure and a hemisphere; the hemisphere is fixedly connected to the lower chord connecting structure, and more than one web connecting structure is connected to the hemisphere. The lower chord can extend into the hollow cylindrical rod of the lower chord connecting structure and be fixed by bolts. The web connecting structure is provided with a telescopic hollow cylindrical rod and a web connector capable of changing the angle. The connection between the web connector and the web is mechanical connection, which is fixed by bolts, eliminating the welding process. The telescopic hollow cylindrical rod has a self-tightening function and is fixed by buckles.

[0004] The technical scheme can eliminate the welding of the truss node, and also facilitate the angle change of the truss node and the support, and can avoid additional bending moment caused by deformation of the support position. However, the lap length problem is not considered in the connection of the web and the chord. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a large-span truss structure convenient to assemble, which solves the problem of adapting to different lap lengths proposed in the background art.

[0006] TECHNICAL SCHEME

[0007] To achieve the above purpose, the utility model realizes the following technical scheme: a large-span truss structure convenient to assemble, comprising chord and web constituting the truss structure, and horizontal sleeve for chord insertion, the horizontal sleeve is middle-through, the upper part and the side wall of the horizontal sleeve are fixedly installed with insertion sleeve for web insertion, the insertion sleeve is half-through, the end faces of the horizontal sleeve and the insertion sleeve are fixedly installed with fixed flange plate, the chord and the web are collectively referred to as rod member, the outer surface of the rod member is sleeved with insertion flange plate, the insertion flange plate is different from the end face of the rod member and is welded with the rod member, and the insertion flange plate and the fixed flange plate are fixedly connected through bolts.

[0008] Further, the support plate is rotationally connected with the plug-in sleeve inside the plug-in sleeve for vertically stressed web members, a threaded shaft is fixedly installed at the middle portion of the support plate, the threaded shaft is in threaded connection with the plug-in sleeve, and an adjusting slot is formed at the middle portion of the support plate.

[0009] Further, the surface of the support plate is provided with a glue injection hole penetrating through the support plate, and the surface of the support plate is provided with an exhaust hole penetrating through the support plate.

[0010] Further, the outer surface of the plug-in flange plate, the fixed flange plate and the bolt is sleeved with a glue injection mold sleeve, and the glue injection mold sleeve is divided into two parts that are plugged in left and right directions.

[0011] Further, the end faces of the two parts of the glue injection mold sleeve that are plugged in left and right directions are respectively provided with a plug-in groove and a plug-in block in a staggered manner, and the two parts of the glue injection mold sleeve that are plugged in left and right directions are connected through a clamping plate that is plugged in up and down directions.

[0012] Further, the two parts of the glue injection mold sleeve that are plugged in left and right directions are both provided with a through hole above, and the diameter of one of the through holes is greater than the diameter of the other through hole.

[0013] The beneficial effects of the utility model lie in:

[0014] 1. The large-span truss structure convenient to assemble, the distance of the rod member inserted into the horizontal sleeve and the plug-in sleeve inside is determined through design calculation, the plug-in flange plate is fixed to the specified position and then welded, the plug-in flange plate and the fixed flange plate are in contact and fixed through the bolt in the process of assembly, the distance of the support plate to the end face is equal to the insertion depth of the web member after the insertion depth of the web member under vertical stress is determined, the support plate and the plug-in sleeve inside are injected with glue and solidified, and then the web member is inserted into the corresponding plug-in sleeve inside, so that the plug-in length can be limited according to the design requirement.

[0015] 2. The large-span truss structure convenient to assemble, the outer surface of the plug-in flange plate, the fixed flange plate and the bolt is sleeved with a glue injection mold sleeve, the glue injection mold sleeve is divided into two parts that are plugged in left and right directions, the three are wrapped through the setting of the glue injection mold sleeve, and the glue is injected into the glue injection mold sleeve, and the anti-loosening effect can be achieved after the glue solidifies. ACCURATE DRAWINGS

[0016] Figure 1 It is a truss connection schematic diagram of the utility model;

[0017] Figure 2 It is a horizontal sleeve connection schematic diagram of the utility model;

[0018] Figure 3 It is a plug-in flange plate schematic diagram of the utility model;

[0019] Figure 4 It is the schematic view of the glue injection mold sleeve of the utility model.

[0020] Among them, 1, chord; 2, web; 3, horizontal sleeve; 4, fixed flange plate; 5, plug-in flange plate; 6, bolt; 7, support plate; 8, threaded shaft; 9, adjusting slot; 10, glue injection hole; 11, exhaust hole; 12, glue injection mold sleeve; 13, plug-in slot; 14, plug-in block; 15, clamping plate; 16, through hole; 17, plug-in sleeve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Referring to Figures 1-4 A large-span truss structure convenient to assemble, including chord 1 and web 2 that constitute truss structure, and horizontal sleeve 3 for chord 1 plug-in, horizontal sleeve 3 is middle through, and the upper portion and side wall of horizontal sleeve 3 are fixedly installed with plug-in sleeve 17 for web 2 plug-in, plug-in sleeve 17 is half through, and the end surface of horizontal sleeve 3 and plug-in sleeve 17 is fixedly installed with fixed flange plate 4, and chord 1 and web 2 are collectively referred to as member, and the outer surface of member is sleeved with plug-in flange plate 5, plug-in flange plate 5 is different from the distance of member end surface and is welded with member, and plug-in flange plate 5 and fixed flange plate 4 are fixedly connected through bolt 6.

[0023] Plug-in sleeve 17 inside for plug-in vertical force web 2 is rotatably connected with support plate 7, and the middle portion of support plate 7 is fixedly installed with threaded shaft 8, threaded shaft 8 is threadedly connected with plug-in sleeve 17, and the middle portion of support plate 7 is provided with adjusting slot 9, since it is not safe to bear vertical pressure simply through the weld of plug-in flange plate 5, the height of support plate 7 is changed by rotating threaded shaft 8, so that support plate 7 can tightly adhere to web 2, thereby stress can be dispersed.

[0024] Glue injection hole 10 passing through support plate 7 is formed in the surface of support plate 7, and exhaust hole 11 passing through support plate 7 is formed in the surface of support plate 7, by injecting colloid in support plate 7 and plug-in sleeve 17, the pressure received by support plate 7 can be transmitted to plug-in sleeve 17 through colloid after solidification, so that the device can be stressed uniformly.

[0025] An injection mold sleeve 12 is fitted onto the outer surfaces of the plug-in flange plate 5, the fixed flange plate 4, and the bolts 6. The injection mold sleeve 12 is divided into two parts, left and right, which are plugged in. By setting the injection mold sleeve 12 to wrap the three parts and injecting glue into the injection mold sleeve 12, the glue can play an anti-loosening role after it has cured.

[0026] The two ends of the left and right parts of the injection mold sleeve 12 are respectively provided with interlocking slots 13 and interlocking blocks 14. The two parts of the injection mold sleeve 12 are connected by interlocking snap plates 15. This arrangement can make the two symmetrically interlocked parts on the left and right sides tightly connected.

[0027] The two parts of the injection mold sleeve 12 that are inserted on the left and right sides are provided with through holes 16. The diameter of one through hole 16 is larger than that of the other through hole 16. This arrangement makes it easy to inject glue from the larger through hole 16 and vent air from the smaller through hole 16.

[0028] In use, the distance between the rod and the horizontal sleeve 3 and the insertion sleeve 17 is determined by design calculation. After the insertion flange plate 5 is fixed to the designated position, welding is performed. During assembly, the insertion flange plate 5 and the fixed flange plate 4 are brought into contact and fixed by bolts 6. After determining the insertion depth of the vertically stressed web member 2, the support plate 7 is moved by rotating the threaded shaft 8 so that the distance from the support plate 7 to the end face is equal to the insertion depth of the web member 2. Glue is injected into the support plate 7 and the insertion sleeve 17 and cured. Then, the web member 2 is inserted into the corresponding insertion sleeve 17, thereby limiting the insertion length according to design requirements.

[0029] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A large-span truss structure that is easy to assemble, comprising chord members (1) and web members (2) constituting the truss structure, and horizontal sleeves (3) for inserting the chord members (1), characterized in that: The horizontal sleeve (3) is a through-hole, and a plug-in sleeve (17) for inserting the web member (2) is fixedly installed on the top and side wall of the horizontal sleeve (3). The plug-in sleeve (17) is a half-hole. The end faces of the horizontal sleeve (3) and the plug sleeve (17) are fixedly installed with fixed flange plates (4). The chord (1) and the web member (2) are collectively referred to as rods. The outer surface of the rod is fitted with a plug flange plate (5). The plug flange plate (5) is at a different distance from the end face of the rod and is welded to the rod. The plug flange plate (5) and the fixed flange plate (4) are fixedly connected by bolts (6).

2. The large-span truss structure that is easy to assemble according to claim 1, characterized in that: The insert sleeve (17) used for inserting the vertically stressed web member (2) has a support plate (7) rotatably connected inside. A threaded shaft (8) is fixedly installed in the middle of the support plate (7). The threaded shaft (8) is threadedly connected to the insert sleeve (17). An adjustment slot (9) is provided in the middle of the support plate (7).

3. The large-span truss structure that is easy to assemble according to claim 2, characterized in that: The surface of the support plate (7) is provided with an injection hole (10) that penetrates the support plate (7), and the surface of the support plate (7) is provided with an exhaust hole (11) that penetrates the support plate (7).

4. The large-span truss structure that is easy to assemble according to claim 1, characterized in that: The outer surfaces of the plug-in flange plate (5), the fixed flange plate (4), and the bolts (6) are fitted with an injection mold sleeve (12), which is divided into two parts: left and right plug-in parts.

5. A large-span truss structure that is easy to assemble according to claim 4, characterized in that: The two ends of the left and right parts of the glue injection mold sleeve (12) are respectively provided with interlocking slots (13) and interlocking blocks (14), and the two parts of the left and right parts of the glue injection mold sleeve (12) are connected by interlocking snap plates (15).

6. A large-span truss structure that is easy to assemble according to claim 4, characterized in that: The two parts of the injection mold sleeve (12) that are inserted on the left and right sides are provided with through holes (16), and the diameter of one through hole (16) is larger than the diameter of the other through hole (16).

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