Truss structure, escalator and installation method thereof

Abstract

The present application relates to a truss structure, an escalator and an installation method thereof. The truss structure includes a lower chord, an upper chord, a reinforcement and a connecting member. The lower chord is a T-shaped steel and is used to be installed on a building structure; the upper chord is arranged in parallel with the lower chord; the reinforcement is installed on the upper chord; and the two ends of the connecting member that are far away from each other are respectively connected to the upper chord and the lower chord. The installation of the reinforcement ensures the structural strength of the upper chord while also ensuring that it does not affect the installation of other parts of the escalator, and does not increase the width of the truss structure in order to enhance the structural strength. The lower chord is a T-shaped steel, which enhances the overall bending resistance of the truss structure. It ensures that in the scenario of a truss structure with a large span and no intermediate support, the width and depth of the truss structure will not increase, and the size of the pit for installing the truss structure will not increase. It avoids the need to set up other components to support and strengthen the structural strength of the lower chord, thereby reducing the weight and construction cost of the truss structure.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation equipment, in particular to a truss structure, an escalator and an installation method thereof. Background Art

[0002] At present, escalator trusses on the market mainly include angle steel and square tube structures. When it is necessary to cope with occasions with large spans without intermediate supports, the main methods to improve the strength and rigidity of the truss are to increase the specifications of components such as the main chord material, increase the depth of the truss, or adopt double trusses. However, these reinforcement methods will lead to a significant increase in the depth and width of the truss and the size of the pit, and the weight and cost of the truss are also relatively high. Summary of the Invention

[0003] Based on this, it is necessary to provide a truss structure, escalator and installation method thereof to address the problems of increased truss depth and width and pit size, and higher truss weight and cost in the above-mentioned large-span scenario without intermediate support.

[0004] A truss structure includes a lower chord, an upper chord, a reinforcement and a connecting member, wherein the lower chord is a T-shaped steel and is used to be installed on a building structure; the upper chord is arranged parallel to the lower chord; the reinforcement is installed on the upper chord; and the two distal ends of the connecting member are respectively connected to the upper chord and the lower chord.

[0005] In one embodiment, there are two lower chord members, which are arranged parallel to each other and are both used to be installed on a building structure; the truss structure also includes a reinforcement member, and the two ends of the reinforcement member are respectively connected to the two lower chord members.

[0006] In one embodiment, the reinforcement member comprises angle steel and / or reinforcement plate;

[0007] And / or, the connecting piece is a channel steel;

[0008] And / or, the upper chord member is an angle steel.

[0009] In one embodiment, the connecting member includes a longitudinal beam and an oblique beam, the two ends of the longitudinal beam being away from each other are respectively connected to the upper chord member and the lower chord member, the two ends of the oblique beam being away from each other are respectively connected to the upper chord member and the lower chord member, and the longitudinal beam and the oblique beam intersect.

[0010] In one embodiment, there is at least one longitudinal beam; the upper end of one of the longitudinal beams is correspondingly connected to one end of the upper chord, and a first docking piece is welded on the side of the upper end of the longitudinal beam away from the upper chord, and the first docking piece is used to be fixedly connected to the first docking piece on the adjacent truss structure; the lower end of one of the longitudinal beams is correspondingly connected to one end of the lower chord, and a second docking piece is welded on the side of the lower end of the longitudinal beam away from the lower chord, and the second docking piece is used to be fixedly connected to the second docking piece on the adjacent truss structure.

[0011] In one embodiment, the first docking member is configured as a first docking plate, and a first assembly hole penetrating the first docking plate and the longitudinal beam is provided on a side of the first docking plate away from the longitudinal beam, and the number of the first assembly holes is at least two;

[0012] And / or, the second docking member is configured as a second docking plate, and a second assembly hole penetrating the second docking plate and the longitudinal beam is provided on a side of the second docking plate away from the longitudinal beam, and there are at least two second assembly holes.

[0013] In one embodiment, a side of the lower chord member close to the second docking plate is provided with an avoidance groove, and the avoidance groove extends from a side of the lower chord member close to the upper chord member toward a direction away from the upper chord member.

[0014] An escalator comprises a connecting assembly and at least two truss structures, wherein the connecting assembly is used for fixedly connecting two adjacent truss structures.

[0015] A method for installing a truss structure, wherein the truss structure is the truss structure described above, and the method for installing the truss structure comprises:

[0016] positioning the lower chord member on the building structure;

[0017] Preliminarily fasten one end of the connecting member to the lower chord member via a bolt, and preliminarily fasten the upper chord member to the other end of the connecting member via a bolt; wherein the tightening torque of the bolt is 16 kg / m;

[0018] Continue tightening the bolt until the torx head of the bolt falls off.

[0019] In one embodiment, one end of the connecting member is preliminarily fastened to the lower chord member by a bolt, and the upper chord member is preliminarily fastened to the other end of the connecting member by a bolt, comprising:

[0020] The number of the bolts is at least two;

[0021] The bolts preliminarily installed on the upper chord member;

[0022] Install the bolts on the connecting member;

[0023] Install the bolts on the lower chord.

[0024] The above-mentioned truss structure, escalator and installation method thereof, the installation of reinforcement members on the upper chord can further improve the structural strength of the upper chord, the truss structure and the entire escalator. While ensuring the structural strength of the upper chord, it also ensures that it will not affect the installation of other components of the escalator, and will not increase the width of the truss structure to enhance the structural strength. The lower chord is T-shaped steel, which enhances the overall bending resistance of the truss structure. It ensures that in the scenario of a truss structure with a large span and no intermediate support, the width and depth of the truss structure will not increase, and the size of the pit for installing the truss structure will not increase. It avoids the need to set up other components to support and strengthen the structural strength of the lower chord, thereby reducing the weight and construction cost of the truss structure. The connector connects the upper chord and the lower chord to further improve the integrity of the truss structure and the overall strength of the truss structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of a truss structure in one embodiment.

[0026] Figure 2 for Figure 1 A side view of a truss structure in an embodiment.

[0027] Figure 3 Schematic diagram of the structure of an escalator in one embodiment.

[0028] 10. Truss structure; 100. Lower chord; 200. Upper chord; 300. Reinforcement; 400. Connector; 410. Longitudinal beam; 420. Diagonal beam; 500. First docking member; 600. Second docking member; 700. Connecting assembly; 710. First docking bolt; 720. Second docking bolt. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] See Figure 1 and Figure 2 , Figure 1A schematic diagram of a truss structure 10 according to an embodiment of the present invention is shown. An escalator provided by this embodiment includes the truss structure 10 and a guide rail. The truss structure 10 comprises a lower chord 100, an upper chord 200, a reinforcement member 300, and a connector 400. The lower chord 100 is a T-shaped steel member and is intended to be mounted on a building structure. The upper chord 200 is arranged parallel to the lower chord 100. The reinforcement member 300 is mounted on the upper chord 200. The connector 400 has two distal ends that connect the upper chord 200 and the lower chord 100, respectively. The guide rail is mounted on the lower chord 100.

[0031] Installing the reinforcement member 300 on the upper chord 200 can further improve the structural strength of the upper chord 200, the truss structure 10, and the entire escalator. While ensuring the structural strength of the upper chord 200, it also ensures that it will not affect the installation of other escalator components, and the width of the truss structure 10 will not be increased to enhance the structural strength. The lower chord 100 is a T-shaped steel, which enhances the overall bending resistance of the truss structure 10. This ensures that in scenarios where the truss structure 10 has a long span and no intermediate support, the width and depth of the truss structure 10 will not increase, and the size of the pit for installing the truss structure 10 will not increase. The installation of other components to support and strengthen the structural strength of the lower chord 100 is avoided, thereby reducing the weight and construction cost of the truss structure 10. The connector 400 connects the upper chord 200 and the lower chord 100, further improving the integrity and overall strength of the truss structure 10.

[0032] In the prior art, such large-span escalators without intermediate supports are usually made into multi-segment structures due to reasons such as insufficient length or strength of the raw materials. This requires consideration of the design of the truss docking structure 500. The present invention applies T-shaped steel to the lower chord 100, making full use of the remaining space at the bottom of the escalator. This not only enhances the strength of the truss structure 10, but also does not affect the installation of other components such as the steps and guide rails, thereby ensuring the integrity of the escalator. Compared to the existing double truss structure 10 and the truss structure 10 using square tubes for the lower chord 100, the truss structure 10 of the present invention has the smallest external dimensions. At the same time, when docking the truss structure 10, arranging bolts around the centroid of the T-shaped steel can effectively reduce the number of bolts used, thereby reducing the overall cost of the truss structure 10.

[0033] Specifically, the reinforcement 300 is a sheet metal structure. It primarily serves to strengthen the upper chord 200 and facilitate the installation of other escalator components. Preferably, the reinforcement 300 is a sheet metal member that matches the shape of the upper chord 200. In other embodiments, the reinforcement 300 can also be other structural members, as long as they can strengthen the upper chord 200.

[0034] In another embodiment, there are at least two reinforcement members 300, at least one of which is disposed on the upper chord 200, and the other reinforcement members 300 are disposed on the lower chord 100. It should be noted that during actual installation, one end of the reinforcement member 300 is connected to the upper chord 200 or the lower chord 100, and the other end can be connected to the connector 400, thereby strengthening the connection between the upper chord 200, the lower chord 100, and the connector 400.

[0035] In one embodiment, there are two lower chord members 100, which are arranged parallel to each other and are both mounted on a building structure. The truss structure 10 also includes a reinforcement member, the ends of which are connected to the two lower chord members 100. The reinforcement member further strengthens the connection between the two lower chord members 100, ensuring the integrity and structural strength of the truss structure 10, and thereby ensuring the safety and reliability of the escalator.

[0036] In one embodiment, the upper chord 200 is an angle steel having a size of 100 cm×160 cm×18 cm+160 cm×18 cm.

[0037] In one embodiment, the dimensions of the lower chord 100 are 253 cm×201 cm×11 cm×19 cm.

[0038] In one embodiment, the reinforcing member comprises an angle steel and / or a reinforcing plate. The angle steel has a size of 80 cm × 50 cm × 8 cm. Specifically, the reinforcing member has a reinforcing strength of 9T.

[0039] Specifically, the connector 400 is a channel steel. In one embodiment, the connector 400 includes a longitudinal beam 410 and an oblique beam 420. The distal ends of the longitudinal beam 410 connect the upper chord 200 and the lower chord 100, respectively. The distal ends of the oblique beam 420 connect the upper chord 200 and the lower chord 100, respectively. The longitudinal beam 410 and the oblique beam 420 intersect. The dimensions of the longitudinal beam 410 are 200 cm × 125 cm × 12 cm. The dimensions of the oblique beam 420 are 100 cm × 9 cm. Optionally, the dimensions of the longitudinal beam 410 can also be 100 cm × 8.5 cm. The connector 400 must meet the connection strength requirements between the upper chord 200 and the lower chord 100 to ensure truss strength and escalator safety. Alternatively, the connector 400 can be made of other types of metal parts, as long as they can ensure the integrity and overall strength of the truss structure 10. It should be noted that the longitudinal beam 410 is connected to the upper chord 200 and the lower chord 100 at a perpendicular angle. The oblique beam 420 is connected to the upper chord 200 and the lower chord 100 at an inclined angle. The oblique beam 420 and the longitudinal beam 410 intersect.

[0040] In one embodiment, the truss structure 10 further includes a handpiece assembly, comprising a handpiece and a positioning member. The handpiece's two ends are respectively connected to the connector 400 and the upper chord 200, with the positioning member abutting the handpiece on the side facing away from the connector 400. The handpiece is used to connect to other structural components of the escalator. The handpiece is primarily connected to the upper chord 200 and the connector 400 by welding. The welding height of the handpiece is 10 mm. There are at least two handpieces, at least one of which has its two ends connected to the upper chord 200 and one end of the connector 400, while the other handpieces can have their two ends connected to the lower chord 100 and the other end of the connector 400. When connecting the handpiece to the lower chord 100, the handpiece still welds the lower chord 100 and the other end of the connector 400, thereby ensuring the stability and reliability of the handpiece connection. This ensures the overall stability and robustness of the truss structure 10, making the escalator safer and more reliable. During welding, since the positioning member contacts the follow-up member, the follow-up member can be more stable during welding, which facilitates welding and improves the installation efficiency of the truss structure 10. Specifically, the positioning member includes a positioning portion and a positioning block. The two ends of the positioning portion can be respectively clamped on the upper chord member 200 and the lower chord member 100. The positioning portion is provided with a positioning block. The positioning block can contact the follow-up member and apply pressure to the follow-up member, so that the relative position of the follow-up member is more stable and more convenient for welding. The number of positioning blocks is at least two, and the number of positioning blocks on the positioning portion can be adjusted according to the actual construction situation. Specifically, the number of follow-up members should be the sum of the number of upper chord members 200 and the number of lower chord members 100. Threaded holes are provided on the follow-up member to facilitate other structures to be connected to the follow-up member by threaded connection, thereby completing the overall installation of the escalator. It is reasonable to understand that the number of threaded holes is at least two.

[0041] See Figure 1 、 Figure 2 and Figure 3As shown, in one embodiment, there is at least one longitudinal beam 410; the upper end of one of the longitudinal beams 410 is connected to one end of the upper chord 200, and a first connector 500 is welded to the side of the upper end of the longitudinal beam 410 away from the upper chord 200. The first connector 500 is used to be fixedly connected to the first connector 500 on the adjacent truss structure 10; the lower end of one of the longitudinal beams 410 is connected to one end of the lower chord 100, and a second connector 600 is welded to the side of the lower end of the longitudinal beam 410 away from the lower chord 100. The second connector 600 is used to be fixedly connected to the second connector 600 on the adjacent truss structure 10. In this way, multiple truss structures 10 can be connected as a whole via the first connector 500 and the second connector 600, thereby improving the applicability of the truss structure 10.

[0042] Specifically, in this embodiment, the upper end of one of the longitudinal beams 410 is welded to one end of the T-shaped steel, and the lower end of one of the longitudinal beams 410 is welded to one end of the T-shaped steel. Thus, compared to conventional double-truss chords, the present invention significantly reduces the amount of welding between the longitudinal beams 410 and the T-shaped steel, thereby increasing the bending resistance of the truss structure 10. Furthermore, the present invention fully utilizes the remaining space below the escalator, enhancing the strength of the truss structure 10 while not affecting the installation of other components such as the steps and guide rails. Furthermore, the escalator's overall dimensions are minimized, making it more suitable for market applications.

[0043] like Figure 2 and Figure 3 As shown, the first docking member 500 is further configured as a first docking plate. A first assembly hole is provided on the side of the first docking plate away from the longitudinal beam 410, penetrating the first docking plate and the longitudinal beam 410. There are at least two first assembly holes. The second docking member 600 is configured as a second docking plate. A second assembly hole is provided on the side of the second docking plate away from the longitudinal beam 410, penetrating the second docking plate and the longitudinal beam 410. There are at least two second assembly holes. In this way, both the first assembly hole and the second assembly hole are located at locations where the truss structure 10 is subjected to greater stress, ensuring the connection strength between adjacent first docking plates and between adjacent second docking plates, thereby improving the reliability of the truss structure 10. Specifically, in this embodiment, the second assembly holes are spaced apart around the centroid of the T-shaped steel.

[0044] Optionally, a side of the lower chord 100 near the second docking plate is provided with an escape groove, which extends from the side of the lower chord 100 near the upper chord 200 toward a direction away from the upper chord 200. This facilitates installation or removal of the connecting assembly 700 at the second assembly hole, thereby improving the convenience of assembling the truss structure 10.

[0045] like Figure 1 、 Figure 2 and Figure 3 As shown, in one embodiment, an escalator is provided, comprising a connecting assembly 700 and at least two truss structures 10, wherein the connecting assembly 700 is used to securely connect two adjacent truss structures 10. Specifically, in this embodiment, the connecting assembly 700 comprises a first docking bolt 710 and a second docking bolt 720. The number of the first docking bolts 710 is the same as the number of the first assembly holes. Each of the first docking bolts 710 is used to pass through the first assembly holes on the two adjacent truss structures 10 and lock and secure the two adjacent first docking plates. The number of the second docking bolts 720 is the same as the number of the second assembly holes. Each of the second docking bolts 720 is used to pass through the second assembly holes on the two adjacent truss structures 10 and lock and secure the two adjacent second docking plates. In this way, at least two truss structures 10 can be stably and reliably assembled into one, thereby improving the reliability of the escalator. Furthermore, compared to conventional escalators, the first and second docking plates in this embodiment can be pre-machined and fixed to the longitudinal beam 410 as a single piece, with holes drilled throughout. This not only ensures sufficient structural strength, but also reduces the number of holes required, eliminating the need for on-site drilling operations. This simplifies the assembly process and steps, shortens the processing cycle, and reduces labor intensity, thereby improving production and processing efficiency. Specifically, in this embodiment, the two longitudinal beams 410, the first and second docking plates, and the first and second docking bolts 710 and 720 cooperate to form a docking structure.

[0046] It should be noted that the first docking bolts 710 and the second docking bolts 720 mentioned above are preferably torsion shear type high-strength bolts, which use friction connection, that is, they rely on the friction between the contact surfaces to bear the load. Correspondingly, the first assembly hole and the second assembly hole are both bolt holes. Since in actual use, escalators or moving walkways are usually subjected to variable loads (such as loads applied by passengers of different weights), this connection method has good anti-fatigue effect and can appropriately extend the service life of the escalator; previous docking structures usually use hinged bolts, and the screw rods are directly subjected to force, so the bolt holes need to be drilled on site to ensure processing accuracy. This docking method uses high-strength bolt friction connection, so that the screw rods are not directly subjected to force, and the gap between the hole wall of the bolt hole and the outer wall of the screw rod can reach 2mm, reducing the difficulty of operation.

[0047] It should be noted that the upper chord in the escalator is under pressure, and the lower chord is under tension. Therefore, the two adjacent first docking plates are pressed together, and the stress change of the first docking bolt 710 will be very small. Only two first docking bolts 710 need to be arranged to ensure the stability of the escalator. The two adjacent second docking plates are pressed together, and the stress change of the second docking bolt 720 is relatively large. Especially in high-lift escalators without intermediate supports, when the axial force at the docking point is large, more second docking bolts 720 need to be arranged to ensure that the stress change of the second docking bolt 720 is within the allowable value range. And through the force analysis of the truss structure 10, it can be seen that the closer the bolts are arranged to the middle of the truss, the smaller the axial force they can share, and more second docking bolts 720 need to be arranged. Therefore, more second docking bolts 720 need to be arranged at the bottom to ensure the safety of the escalator.

[0048] Specifically, the arrangement of the first docking bolts 710 and the second docking bolts 720 is optimized as follows: previous structures all directly arranged the docking bolts longitudinally at the longitudinal beam 410, but through the force analysis of the truss structure 10, it can be seen that the closer the docking bolts are arranged to the middle of the truss, the smaller the axial force they can share, and the more docking bolts need to be arranged. Therefore, in this patent, for the truss structure 10 with the upper chord material being angle steel and the lower chord material being T-steel, the second docking bolts 720 are arranged around the centroid of the T-steel. In this way, the structural rotational inertia is minimized and the structural strength is maximized. Therefore, by arranging the second docking bolts 720 at the bottom of the truss structure 10 under the same axial force conditions, the number of second docking bolts 720 can be minimized, thereby reducing the production cost of the escalator.

[0049] In addition, the side of the first docking plate away from the longitudinal beam 410 remains flat to avoid excessively large docking gaps between two adjacent first docking plates when two adjacent truss structures 10 are connected. The side of the second docking plate away from the longitudinal beam 410 remains flat to avoid excessively large docking gaps between two adjacent second docking plates when two adjacent truss structures 10 are connected. Specifically, when two adjacent truss structures 10 are connected as one, the two adjacent first docking plates are correspondingly in surface contact, and the two adjacent second docking plates are correspondingly in surface contact. A method for installing a truss structure 10, wherein the truss structure 10 is the truss structure 10 as described above, and the installation method comprises:

[0050] Positioning the lower chord 100 on the building structure;

[0051] Preliminarily fasten one end of the connecting member 400 to the lower chord member 100 with a bolt, and preliminarily fasten the upper chord member 200 to the other end of the connecting member 400 with a bolt; wherein the tightening torque of the bolt is 16 kg / m;

[0052] Continue tightening the bolt until the torx head of the bolt falls off.

[0053] Specifically, the torque for initially tightening the bolts is 16 kg / m.

[0054] In one embodiment, one end of the connecting member 400 is preliminarily fastened to the lower chord member 100 by a bolt, and the upper chord member 200 is preliminarily fastened to the other end of the connecting member 400 by a bolt, including:

[0055] The number of the bolts is at least two;

[0056] The bolts preliminarily installed on the upper chord member 200;

[0057] Install the bolt on the connecting member 400;

[0058] Install the bolts on the lower chord 100 .

[0059] When installing the bolts, follow the principle of from top to bottom, that is, install the bolts on the upper chord member 200, the connecting member 400 and the lower chord member 100 in sequence.

[0060] In one embodiment, there are two upper chord members 200 and two lower chord members 100, one upper chord member 200 is connected to one lower chord member 100, the number of the connecting members 400 and the reinforcing members 300 is arranged corresponding to the number of the upper chord members 200, the two upper chord members 200 are parallel to each other, and the two lower chord members 100 are parallel to each other, and the bolts are tightened continuously, and then the following steps are further included:

[0061] Tighten the bolt on one of the upper chord members 200;

[0062] Tighten the bolt on the other upper chord member 200;

[0063] Tighten the bolts on the connecting member 400;

[0064] Tighten the bolt on one of the lower chord members 100;

[0065] Tighten the bolt on the other lower chord member 100 .

[0066] When tightening the bolts, you need to follow the principle of left to right and operate from top to bottom.

[0067] In one embodiment, the bolt is tightened until the torx head of the bolt falls off, and then the method includes:

[0068] The connection between the connecting member 400 and the lower chord member 100 is welded; wherein the welding height is 13 cm.

[0069] This further ensures the stability of the connection between the connection and the lower chord 100, thereby ensuring the safety and reliability of the truss structure 10 and the escalator.

[0070] In one embodiment, before positioning the lower chord 100 on the building structure, the method further comprises:

[0071] Clean the installation location on the lower chord 100 .

[0072] The truss structure 10, escalator and installation method thereof in the above-mentioned embodiment are mainly applicable to the application scenario of escalator with large span and no intermediate support structure. It should be noted again that the truss structure 10 in the existing escalator mainly realizes structural support through angle steel and square tube structure. Under the application condition of large span and no intermediate support, it is necessary to set up other components to reinforce the truss structure 10. However, this increases the complexity of the truss structure 10, increases the overall size of the truss structure 10 and the escalator, reduces the installation efficiency, and increases the installation cost of the truss structure 10 and the escalator. The present invention improves the overall strength of the truss structure 10 by using angle steel for the upper chord 200 and T-shaped steel for the lower chord 100, so that the truss structure 10 can also be applied to the application scenario of escalator with large span and no intermediate support structure without adding other reinforcement structures. This not only reduces the installation cost of the truss structure 10 and the escalator, but also ensures that the overall size of the truss structure 10 and the escalator will not increase significantly, and also improves the installation efficiency of the truss structure 10. It should also be noted that, during the actual installation process, due to the structural characteristics of the T-shaped steel, the use of bolts can be further reduced, thereby further reducing the installation cost of the truss structure 10 .

[0073] Specifically in one embodiment, in a 15m truss structure 10, the material specifications of the upper chord 200 are L200cm×125cm×18cm+105cm×18cm; the material specifications of the lower chord 100 are T303cm×201cm×12cm×20cm; the material specifications of the inclined longitudinal beams 410 and the diagonal beams 420 in the truss structure 10 are U100cm×48cm×5.3cm; the material specifications of the horizontal longitudinal beams 410 and the diagonal beams 420 in the truss structure 10 are L160cm×100cm×10cm.

[0074] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0075] Furthermore, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0076] In this disclosure, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0077] In the present invention, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, the phrase "above," "above," or "above" a first feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. The phrase "below," "below," or "below" a first feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0078] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only implementation method.

[0079] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A truss structure, characterized in that: The truss structure comprises: A lower chord member, wherein the lower chord member is a T-shaped steel and is used for being installed on a building structure; an upper chord member, the upper chord member being arranged parallel to the lower chord member; a reinforcement member, the reinforcement member being mounted on the upper chord member; A connecting member, wherein two ends of the connecting member are separated from each other and are respectively connected to the upper chord member and the lower chord member; The connecting member includes at least one longitudinal beam, wherein the lower end of one of the longitudinal beams is correspondingly connected to one end of the lower chord member, and a second docking member is welded to the side of the lower end of the longitudinal beam away from the lower chord member, and the second docking member is used to be fixedly connected to the second docking member on the adjacent truss structure; The second docking member is configured as a second docking plate, and a second assembly hole penetrating the second docking plate and the longitudinal beam is provided on a side of the second docking plate away from the longitudinal beam. There are at least two second assembly holes, and each second assembly hole is spaced apart around the centroid of the T-shaped steel. A side of the lower chord member close to the second docking plate is provided with an avoidance groove, and the avoidance groove extends from the side of the lower chord member close to the upper chord member toward a direction away from the upper chord member.

2. The truss structure according to claim 1, characterized in that: There are two lower chord members, which are arranged parallel to each other and are both used to be installed on a building structure; the truss structure also includes a reinforcing member, and the two ends of the reinforcing member are respectively connected to the two lower chord members.

3. The truss structure according to claim 2, characterized in that: The reinforcing member includes angle steel and / or reinforcing plate; And / or, the connecting piece is a channel steel; And / or, the upper chord member is an angle steel.

4. The truss structure according to claim 1, wherein: The connecting member further comprises an oblique beam, the two ends of the longitudinal beam being away from each other are respectively connected to the upper chord member and the lower chord member, the two ends of the oblique beam being away from each other are respectively connected to the upper chord member and the lower chord member, and the longitudinal beam and the oblique beam intersect.

5. The truss structure according to claim 4, characterized in that: There is at least one longitudinal beam; the upper end of one of the longitudinal beams is correspondingly connected to one end of the upper chord, and a first docking piece is welded to the side of the upper end of the longitudinal beam away from the upper chord, and the first docking piece is used to be fixedly connected to the first docking piece on the adjacent truss structure.

6. The truss structure according to claim 5, characterized in that: The first docking member is configured as a first docking plate. A first assembly hole penetrating the first docking plate and the longitudinal beam is provided on a side of the first docking plate away from the longitudinal beam. There are at least two first assembly holes.

7. An escalator, characterized in that: It comprises a connecting assembly and at least two truss structures according to any one of claims 1 to 6, wherein the connecting assembly is used to fixedly connect two adjacent truss structures.

8. A method for installing a truss structure, characterized in that: The truss structure is the truss structure according to any one of claims 1 to 6, and the installation method comprises: positioning the lower chord member on the building structure; Preliminarily fasten one end of the connecting member to the lower chord member via a bolt, and preliminarily fasten the upper chord member to the other end of the connecting member via a bolt; wherein the tightening torque of the bolt is 16 kg / m; Continue tightening the bolt until the torx head of the bolt falls off.

9. The method for installing a truss structure according to claim 8, wherein: Preliminarily fastening one end of the connecting member to the lower chord member by means of a bolt, and preliminarily fastening the upper chord member to the other end of the connecting member by means of a bolt, comprising: The number of the bolts is at least two; The bolts preliminarily installed on the upper chord member; Install the bolt on the connecting member; Install the bolts on the lower chord.

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