Detachable roof truss tie bar connecting node

Abstract

The utility model discloses a detachable roof truss tie bar connecting node, which comprises a truss beam connecting part and two tie bar connecting parts, the truss beam connecting part is used for connecting a truss beam, the number of the tie bar connecting parts is two, and the two tie bar connecting parts are respectively connected with two opposite sides of the truss beam connecting part and are used for connecting tie bars, the tie bar connecting part comprises an outward extending plate used for being connected with a tie bar and a limiting plate used for limiting the tie bar, and the size of the limiting plate is decreased in the direction away from the truss beam connecting part. The truss girder connecting part can convert acting force generated by bending deformation of the tie bar into pressing force of the truss girder connecting part towards the interior of the truss girder, and the truss girder connecting part can lock the truss girder; the tie bar connecting part is arranged, so that the tie bar can be quickly positioned and installed, the limiting plate is arranged on the tie bar connecting part and used for limiting movement of the tie bar out of the plane, the problems that in the connecting and welding process, the rectangular limiting plate is prone to deformation towards the inner side and deformation can be accumulated can be solved, separated transportation can be achieved, deformation caused by transportation cannot be caused, and the transportation cost is extremely low.

Description

Technical Field

[0001] The utility model relates to the field of building connection and installation structures, in particular to a detachable roof truss tie rod connection node. Background Art

[0002] In the current construction of low-rise steel structures, especially when truss structures are used as the support system for pitched roofs, the connection of tie rods outside the plane of the roof truss has always been a technical challenge. Traditionally, these tie rods are mostly connected by welding or extended connection plates to achieve structural stability.

[0003] However, this connection method is not conducive to the realization of prefabricated steel structures. During transportation, the assembled steel structures are prone to deformation of the connecting plates. At the same time, during the factory processing stage, it is difficult to position the horizontal tie rods or connection nodes, which can easily cause installation deviations of the horizontal tie rods and ultimately lead to larger gaps in the roof installation, affecting its use.

[0004] Therefore, a technical solution to the above problems is needed. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the purpose of the utility model is to provide a detachable roof truss tie rod connection node and a connection and installation method thereof to solve the above-mentioned technical problems.

[0006] In order to achieve the purpose, the utility model adopts the following technical solutions:

[0007] A detachable roof truss tie rod connection node, comprising

[0008] a truss beam connection portion for connecting the truss beams; and

[0009] Two tie rod connection parts are provided, respectively connected to two opposite sides of the truss beam connection part, and used for connecting the tie rods;

[0010] Wherein, the tie rod connection portion comprises an overhanging plate for connecting the tie rod and a limiting plate for limiting the tie rod, and the size of the limiting plate decreases in a direction away from the truss beam connection portion.

[0011] Preferably, the overhanging plate is connected to the side of the truss beam connecting portion, and the limiting plate is arranged on the side of the overhanging plate.

[0012] Preferably, the overhanging plate is vertically connected to the truss beam connecting portion, and the limiting plate is vertically connected to the overhanging plate.

[0013] Preferably, the limiting plate is a right-angled triangular plate, and its straight sides are respectively connected to the overhanging plate and the truss beam connecting part.

[0014] Preferably, the truss beam connection portion includes a top plate and a first side plate and a second side plate connected to opposite sides of the top plate, and the top plate, the first side plate and the second side plate form a U-shaped structure that can be used to be mounted on the truss beam.

[0015] Preferably, the first side plate and the second side plate are both vertically connected to the top plate.

[0016] Preferably, when the tie rod is installed at the tie rod connection portion, the tie rod can exert a force on the tie rod connection portion to bring the tie rod connection portion close to the truss beam connection portion, and the truss beam connection portion is subjected to the force to clamp the truss beam.

[0017] Preferably, the tie rod connection portion is connected to the first side plate or the second side plate, and when the tie rod is installed on the tie rod connection portion, the tie rod connection portion can apply a force to the first side plate or the second side plate to clamp the truss beam.

[0018] Preferably, the truss beam connection portion and the tie rod connection portion are both provided with connection holes for connection.

[0019] Also included is a detachable roof truss connection and installation method, comprising the following steps:

[0020] Fabrication: pre-processing to form tie rods, truss beams and the above-mentioned detachable roof truss tie rod connection nodes;

[0021] Install truss beams: transport the tie rods, truss beams and removable roof tie rod connection nodes to the construction site, and fix the truss beams on the top of the building;

[0022] Pre-installing detachable roof truss tie rod connection nodes: pre-installing detachable roof truss tie rod connection nodes on the fixed truss beams, and fixing the detachable roof truss tie rod connection nodes on the truss beams;

[0023] Install the tie rods: connect the tie rods to the tie rod connection parts of the detachable roof truss tie rod connection nodes, and fix the tie rods to the detachable roof truss tie rod connection nodes, so as to install the tie rods on the truss beams.

[0024] Alternatively, another method for connecting and installing a detachable roof truss is also provided, comprising the following steps:

[0025] Fabrication: Factory fabrication, pre-fabrication of tie rods, truss beams and the above-mentioned removable roof tie rod connection nodes;

[0026] Install truss beams: transport the tie rods, truss beams and removable roof tie rod connection nodes to the construction site, and fix the truss beams on the top of the building;

[0027] Pre-installing the detachable roof truss tie rod connection node: connecting the tie rod to the tie rod connection part of the detachable roof truss tie rod connection node, and fixing the tie rod to the detachable roof truss tie rod connection node;

[0028] Install the tie rods: install the detachable roof truss tie rod connection nodes for installing the tie rods on the fixed truss beams, and fix the detachable roof truss tie rod connection nodes on the truss beams to achieve the fixation of the tie rods and the truss beams.

[0029] The detachable roof truss tie rod connection node of the utility model adopts a U-shaped truss beam connection part which can be inserted into the vertical web of the truss beam from top to bottom. The U-shaped truss beam connection part is provided with an extended plate connected to the tie rod. The force generated by the tie rod during bending deformation can be converted into a pressing force of the U-shaped truss beam connection part toward the inside of the truss beam. The U-shaped truss beam connection part can lock the truss beam, and connection holes are provided on the U-shaped truss beam connection and the tie rod connection part, which is convenient for disassembly and installation.

[0030] The utility model provides a tie rod connection part to quickly position and install the tie rod, and a triangular limit plate is provided on the tie rod connection part, which is used to limit the out-of-plane movement of the tie rod; the triangular structure of the limit plate, the deformation of the triangle root and the outward extension plate is very small when welding, and the deformation at the farthest end will not accumulate, which can solve the problem that the rectangular limit plate is prone to inward deformation and the deformation will accumulate during the connection welding process, making it difficult to put the horizontal tie rod into the connecting part; and through the limiting effect of the triangular plate on both sides of the tie rod, the in-plane and out-of-plane connection performance of the horizontal tie rod is better guaranteed, thereby increasing the integrity of the roof truss structure.

[0031] In the utility model, the truss beams, the detachable roof truss tie rod connection nodes and the tie rods can be transported to the construction site separately, without causing any deformation due to transportation, and the transportation is in bulk, so the transportation cost is extremely low.

[0032] The node of the utility model avoids on-site welding work, and it is extremely convenient to replace it during use. In the processing process, it avoids the process of welding connecting plates on the roof trusses or directly welding horizontal tie rods, which can greatly reduce deformation. High-altitude positioning and calibration processes are avoided during processing and installation, which greatly improves the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 It is a three-dimensional diagram of the truss beam in the utility model;

[0035] Figure 2 It is a three-dimensional diagram of a detachable roof truss tie rod connection node in the utility model;

[0036] Figure 3 It is a structural schematic diagram of the detachable roof truss tie rod connection node installed on the truss beam in the utility model;

[0037] Figure 4 It is a structural schematic diagram of the utility model in which the tie rod is installed on the truss beam through the detachable roof truss tie rod connection node.

[0038] In the figure: 1, truss beam; 11, rod; 12, vertical web member; 13, first reinforcing rod; 14, second reinforcing rod; 2, connection node; 21, tie rod connection; 211, extension plate; 212, limit plate; 22, truss beam connection; 221, top plate; 222, first side plate; 223, second side plate; 23, connection hole; 3, tie rod; 4, bolt. DETAILED DESCRIPTION

[0039] The utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the above description, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] See also Figure 2 The figure shows a schematic structural diagram of a detachable roof truss tie rod connection node of the utility model.

[0045] See also Figures 1 to 4 A detachable roof truss includes a truss beam 1, a detachable roof truss tie rod connection node (hereinafter referred to as the connection node 2) and a tie rod 3. When in use, the truss beam 1 and the tie rod 3 are connected through the connection node 2 and used as the truss structure of the house for the roof structure of the building.

[0046] refer to Figure 1 The truss beam 1 is a structure formed by connecting multiple rods 11 at both ends. The truss beam 1 is a structure with a constant geometric shape composed of triangular frames composed of straight rods. The truss beam 1 mainly bears axial tension or pressure, so that the strength of the material can be fully utilized. When the span is large, it can save materials, reduce dead weight and increase rigidity compared to a solid beam.

[0047] The truss beam 1 described in the utility model refers to a plane or space structure generally having triangular units composed of straight rods. The truss beam 1 is usually an isosceles triangle structure, or a structure close to an isosceles triangle structure. It is usually installed vertically to the ground in a house as a main supporting structure to ensure the stability of the roof.

[0048] Preferably, the truss beam 1 is substantially rigid, that is, it will not deform significantly when subjected to the normal working load expected to be used. For example, the truss beam 1 is formed by connecting steel rods 11, and the rods 11 can be prefabricated into the truss beam 1 by welding for subsequent use. Alternatively, in some other embodiments, the truss beam 1 can also be made of other materials with a certain rigidity, such as wood, concrete materials, etc. For the performance of the truss beam 1, reference can be made to existing technical standards.

[0049] Preferably, in this embodiment, a plurality of triangular reinforcement rods are also arranged inside the isosceles triangle structure truss beam 1. Figure 1 As shown, the reinforcing rod includes a vertical web member 12 arranged in the middle of the truss beam 1, and the vertical web member 12 is arranged in the vertical direction, perpendicular to the bottom side of the isosceles triangle structure truss beam 1, and divides the isosceles triangle structure truss beam 1 into two right triangle structures. The reinforcing rod also includes a first reinforcing rod 13 connected to the middle of the left side and the middle of the bottom of the isosceles triangle structure truss beam 1, and a second reinforcing rod 14 connected to the middle of the right side and the middle of the bottom of the isosceles triangle structure truss beam 1.

[0050] refer to Figure 4 The tie rod 3 in the utility model generally refers to a rod-shaped structure in a horizontal state in a roof building, which is used to connect between two truss beams 1 to fix the distance between the two truss beams 1. The tie rod 3 is generally connected to the highest point of the truss beam 1, that is, the tie rod 3 is generally located at the top of the building.

[0051] Preferably, the tie rod 3 is a straight rod with a square cross section, and the tie rod 3 is also substantially rigid, such as being made of steel with good torsion resistance and bending resistance and relatively economical. Alternatively, in some other embodiments, the tie rod 3 can also be made of other materials with a certain degree of rigidity, such as wood.

[0052] refer to Figure 2 The connection node 2 includes a tie rod connection portion 21 for connecting the tie rod 3 and a truss beam connection portion 22 for fixing on the truss beam 1, and the tie rod connection portion 21 and the truss beam connection portion 22 are connected to each other. When the truss beam 1 and the tie rod 3 are installed, the truss beam connection portion 22 is connected to the truss beam 1, and the tie rod 3 is installed on the truss beam 1 by connecting to the tie rod connection portion 21 of the connection node 2.

[0053] The truss beam connection part 22 is roughly U-shaped. The length of the U-shaped truss beam connection part 22 is slightly larger than the width of the truss beam 1 . When the truss beam connection part 22 is installed, it can be sleeved on the truss beam 1 and connected to the truss beam 1 .

[0054] Specifically, the truss beam connection portion 22 includes a top plate 221, a first side plate 222 and a second side plate 223. The first side plate 222 and the second side plate 223 are both vertically connected to the top plate 221. The connection position of the first side plate 222 and the second side plate 223 is close to the end position in the length direction of the top plate 221, so that a roughly U-shaped structure is formed between the top plate 221, the first side plate 222 and the second side plate 223, and the net distance between the two side plates is basically the same as the corresponding width of the vertical web member 12 of the truss beam 1 (the width of the truss beam 1).

[0055] The tie rod connection part 21 is connected to the side of the truss beam connection part 22 and is vertically connected to the truss beam 1, so that when the tie rod 3 is connected to the truss beam 1 through the connection node 2, the tie rod 3 can be vertically installed on the side of the truss beam 1.

[0056] The tie rod connection part 21 includes an overhanging plate 211 connected to the side of the truss beam connection part 22 and a limiting plate 212 for limiting the tie rod 3. One end of the overhanging plate 211 is connected to the side plate of the truss beam connection part 22, and is connected to the lower end of the side plate or a position close to the lower end, so that the truss beam connection part 22 forms an extension structure for connecting the tie rod 3 on the side. The limiting plate 212 is arranged on both sides of the overhanging plate 211, so that a mounting groove that can adapt to the end of the tie rod 3 is formed between the overhanging plate 211 and the two limiting plates 212, so as to facilitate the rapid positioning and installation of the tie rod 3. When the tie rod 3 is connected to the overhanging plate 211, the limiting plate 212 can limit the tie rod 3, ensure that the tie rod connection part 21 can quickly sleeve the tie rod 3, and prevent the tie rod 3 from being overturned by force during connection, resulting in unstable connection.

[0057] Preferably, the outwardly extending plate 211 is vertically connected to the first side plate 222 or the second side plate 223 , and the limiting plate 212 is vertically connected to the outwardly extending plate 211 .

[0058] The size of the limit plate 212 gradually decreases in the direction away from the truss beam connection part 22. Preferably, the limit plate 212 is a right-angled triangular plate, one of its two straight sides is connected to the truss beam connection part 22, and the other is connected to the extension plate 211. Specifically, refer to Figure 2The short sides of the two right-angled sides of the limiting plate 212 are connected to the first side plate 222 or the second side plate 223, and the long sides are connected to the top surface of the overhanging plate 211. The height of the short side is at least 1 / 2 of the height of the first side plate 222 or the second side plate 223 to ensure the stability of the connection; the length of the long side is roughly the same as the length of the overhanging plate 211, that is, the two ends of the limiting plate 212 in the length direction are roughly flush with the two sections of the overhanging plate 211, so that the limiting plate 212 can limit the tie rod on the overhanging plate 211 to the maximum extent; the distance from the hypotenuse of the limiting plate 212 to the overhanging plate 211 gradually decreases along the direction away from the truss beam connection part 22, so that the root of the right-angled triangle limiting plate 212 is deformed very little when welded with the overhanging plate 211, and the deformation at the farthest end will not accumulate. When the tie rod 3 is completely pressed into the tie rod connection part 21, the limiting effect can also be achieved.

[0059] Based on the above-mentioned setting of the limiting plate 212, the problem that the existing rectangular limiting plate 212 is prone to inward deformation and the deformation will accumulate during the connection welding process, making it difficult to put the horizontal tie rod 3 into the connecting piece can be solved.

[0060] Preferably, the side surface of the limiting plate 212 which is a beveled edge may be a plane or a curved surface.

[0061] Preferably, two tie rod connection parts 21 are provided, which are respectively arranged on the opposite sides of the truss beam connection part 22. When the tie rod 3 is installed on the tie rod connection part 21, the gravity of the horizontally arranged tie rod 3 applies a force to the tie rod connection part 21 to make the tie rod connection part 21 close to the truss beam connection part 22, so that the truss beam connection part 22 is subjected to force to clamp the truss beam 1.

[0062] Specifically, the top of the truss beam 1 is a flat structure. During installation, the U-shaped truss beam connection part 22 is pressed into the top of the truss beam 1. At this time, the horizontal tie rod 3 acts on the tie rod connection part 21 under the action of gravity, causing the U-shaped truss beam connection part 22 to deform. Tie rod connection parts 21 are arranged on both sides of the truss beam connection part 22 to connect the tie rods 3. The horizontal tie rods 3 on both sides convert the force generated when they are bent and deformed under the action of gravity (that is, the bending moment of the tie rod 3) into a pressing force of the U-shaped truss beam connection part 22 to the inside of the vertical web member 12. The U-shaped truss beam connection part 22 can lock the vertical web member 12.

[0063] Preferably, the tie rod connection portion 21 and the truss beam connection portion 22 may be integrally formed.

[0064] To facilitate installation and fixing, connection holes 23 are provided on the tie rod connection part 21 and the truss beam connection part 22. Preferably, the connection holes 23 are respectively provided on the extension plate 211 of the tie rod connection part 21 and the first side plate 222 and the second side plate 223 of the truss beam connection part 22. The connection holes 23 can be through holes for the bolts 4 to pass through for fixing. Alternatively, in some other embodiments, the connection holes 23 can also be screw holes.

[0065] Of course, it is understandable that in order to increase safety, a connection hole 23 is vertically added to the top plate 221 of the truss beam connection part 22, and the truss beam 1 is fixed by bolts 4 to prevent the U-shaped truss beam connection part 22 from sliding off the truss beam 1 and lifting vertically upward.

[0066] refer to Figure 3 , Figure 4 , the installation process of the detachable roof truss in the utility model is:

[0067] S1, production: pre-processing tie rods 3, truss beams 1 and connection nodes 2;

[0068] S2, installing the truss beam 1: transporting the tie rod 3, the truss beam 1 and the connection node 2 to the construction site, and fixing the truss beam 1 on the top of the building;

[0069] Specifically, the truss beam 1 and the building can be connected by welding, or can be bound by iron wires, or fixed by bolts.

[0070] S3, pre-installing the connection node 2: pre-installing the connection node 2 on the fixed truss beam 1, and fixing the connection node 2 on the truss beam 1;

[0071] Specifically, the bolts 4 are passed through the connection holes 23 on the first side plate 222 (or the second side plate 223 ) and the top plate 221 of the connection node 2 and then fixed to the truss beam 1 , thereby fixing the connection node 2 and the truss beam 1 .

[0072] S4, installing the tie rod 3: connecting the tie rod 3 to the tie rod connecting portion 21 of the connection node 2, fixing the tie rod 3 to the connection node 2, and thus installing the tie rod 3 on the truss beam 1.

[0073] Specifically, the end of the tie rod is inserted into the installation groove formed between the extended plate 211 and the limit plate 212, and then the bolt 4 is passed through the connection hole 23 of the extended plate 211 and fixed to the tie rod 3 to fix the connection node 2 and the tie rod 3.

[0074] It is understandable that the installation process of the detachable roof truss in the utility model can also be:

[0075] S1, production: pre-processing tie rods 3, truss beams 1 and connection nodes 2;

[0076] S2, installing the truss beam 1: transporting the tie rod 3, the truss beam 1 and the connection node 2 to the construction site, and fixing the truss beam 1 on the top of the building;

[0077] Specifically, the truss beam 1 and the building can be connected by welding, or can be bound by iron wires, or fixed by bolts.

[0078] S3, pre-installing the connection node 2: connecting the tie rod 3 to the tie rod connection part 21 of the connection node 2, and fixing the tie rod 3 on the connection node 2;

[0079] Specifically, the end of the tie rod 3 is inserted into the installation groove formed between the extended plate 211 and the limit plate 212, and then the bolt 4 is passed through the connection hole 23 of the extended plate 211 and fixed to the tie rod 3 to fix the connection node 2 and the tie rod 3.

[0080] S4, installing the tie rod 3: installing the connection node 2 for installing the tie rod 3 on the truss beam 1, and fixing the connection node 2 on the truss beam 1, so as to fix the tie rod 3 and the truss beam 1.

[0081] Specifically, the bolt 4 is passed through the connection hole 23 on the first side plate 222 (or the second side plate 223) and the top plate 221 of the connection node 2 and then fixed to the truss beam 1, so as to fix the connection node 2 and the truss beam 1, thereby achieving the fixation of the tie rod 3 and the truss beam 1.

[0082] Of course, it is understandable that, in some embodiments, the above-mentioned detachable roof truss can also be quickly disassembled, that is, it can be easily disassembled by disassembling the tie rod 3, the connection node 2 and the truss beam 1.

[0083] In addition, it should be noted that the above-mentioned connection node 2 may not be set at the top of the truss beam 1. Construction workers can set it at different positions according to structural requirements, and there is no limitation here.

[0084] The truss beam connection part 22 of the utility model can convert the force generated when the tie rod 3 is bent and deformed under the action of gravity into the pressing force of the truss beam connection part 22 to the inside of the truss beam 1, and the truss beam connection part 22 can lock the truss beam 1; the truss beam connection part 22 and the tie rod connection part 21 are provided with connection holes 23, which are convenient for disassembly and installation. The tie rod connection part 21 is set to quickly locate and install the tie rod 3, and the tie rod connection part 21 is provided with a limit plate 212, which is used to limit the movement of the tie rod 3 outside the plane; the limit plate 212 is a triangular structure, and the deformation of its root is very small when it is welded with the extension plate 211, and the deformation at the farthest end will not accumulate, which can solve the problem that the rectangular limit plate is prone to deformation inward during the connection welding process and the deformation will accumulate, making it difficult to put the horizontal tie rod into the tie rod connection part 21. Moreover, the truss beam 1, the detachable roof truss tie rod connection node and the tie rod 3 can be transported to the construction site separately, without causing any deformation due to transportation, and the transportation cost is extremely low because the truss beam 1, the detachable roof truss tie rod connection node and the tie rod 3 can be transported to the construction site separately, without causing any deformation due to transportation.

[0085] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A detachable roof truss tie rod connection node, characterized in that: include a truss beam connection portion for connecting the truss beams; and Two tie rod connection parts are provided, respectively connected to two opposite sides of the truss beam connection part, and used for connecting the tie rods; Wherein, the tie rod connection portion comprises an overhanging plate for connecting the tie rod and a limiting plate for limiting the tie rod, and the size of the limiting plate decreases in a direction away from the truss beam connection portion.

2. A detachable roof truss tie rod connection node according to claim 1, characterized in that: The overhanging plate is connected to the side surface of the truss beam connecting portion, and the limiting plate is arranged on the side surface of the overhanging plate.

3. A detachable roof truss tie rod connection node according to claim 2, characterized in that: The outrigger plate is vertically connected to the truss beam connecting portion, and the limit plate is vertically connected to the outrigger plate.

4. A detachable roof truss tie rod connection node according to claim 1, characterized in that: The limiting plate is a right-angled triangular plate, and its straight sides are respectively connected to the overhanging plate and the truss beam connecting part.

5. A detachable roof truss tie rod connection node according to any one of claims 1 to 4, characterized in that: The truss beam connection portion includes a top plate and a first side plate and a second side plate connected to opposite sides of the top plate. The top plate, the first side plate and the second side plate form a U-shaped structure that can be sleeved on the truss beam.

6. A detachable roof truss tie rod connection node according to claim 5, characterized in that: The first side plate and the second side plate are both vertically connected to the top plate.

7. A detachable roof truss tie rod connection node according to claim 5, characterized in that: When the tie rod is installed at the tie rod connection portion, the tie rod can exert a force on the tie rod connection portion to make the tie rod connection portion close to the truss beam connection portion, and the truss beam connection portion is subjected to the force to clamp the truss beam.

8. A detachable roof truss tie rod connection node according to claim 7, characterized in that: The tie rod connection portion is connected to the first side plate or the second side plate. When the tie rod is installed on the tie rod connection portion, the tie rod connection portion can apply a force to the first side plate or the second side plate to clamp the truss beam.

9. A detachable roof truss tie rod connection node according to any one of claims 1 to 4, characterized in that: The truss beam connection part and the tie rod connection part are both provided with connection holes for installation.

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