A kind of well-shaped splicing truss for steel structure house

Abstract

The application discloses a Chinese character-shaped splicing truss for a steel structure house and relates to the related field of civil engineering, which comprises a splicing component, reinforcing components are installed on the upper and lower sides of the splicing component through bolts respectively, a supporting component is installed on the top of the splicing component through bolts, two groups of I-shaped steel are fixedly installed on the left and right sides of lower supporting chord plates and upper supporting chord plates through splicing screw rods, the lower supporting chord plates and the upper supporting chord plates are connected and kept in parallel through the insertion and fixing of supporting blocks on supporting inserting rods, convex steel is fixedly installed on the upper and lower sides of the lower supporting chord plates and the upper supporting chord plates through convex rod screw rods, side upper plates and side lower plates are fixed on the side of the upper supporting chord plates through bolts, the bearing plates transmit the gravity and pressure to the upper supporting chord plates and the lower supporting chord plates through main web members, and the spacing of multiple groups of hinged pieces is changed to change the stress distribution of the overall cross bars of the lower supporting chord plates and the upper supporting chord plates.

Description

Technical Field

[0001] This invention relates to the field of civil engineering, specifically to a grid-shaped splicing truss for steel structure houses. Background Technology

[0002] Steel structure buildings are a new type of building system that breaks down the boundaries between the real estate, construction, and metallurgical industries, bringing them together into a new industrial system. This is the steel structure building system that is generally favored by industry insiders. The truss in the truss structure refers to the truss beam, which is a lattice-type beam structure.

[0003] Existing support devices are too simple in structure, mostly using triangular structures. The support height is difficult to adjust according to the site conditions, which is inconvenient for non-standard formwork construction, wastes materials, and is very inconvenient to use. The support strength is also insufficient. Existing technologies usually do not set up specific support structures between the frame and the floor slab. As a result, due to the difference in the flatness of the installation materials of the frame and the floor slab, the weight and pressure of the floor slab are concentrated in some areas, which is difficult to distribute evenly on the entire frame. This results in some areas of the frame having higher compressive strength and being prone to bending. Summary of the Invention

[0004] Therefore, in order to overcome the above-mentioned shortcomings, the present invention provides a grid-shaped splicing truss for steel structure houses.

[0005] The present invention is implemented by constructing a grid-shaped splicing truss for steel structure houses. The device includes a splicing assembly, with reinforcing assemblies bolted to the upper and lower sides of the splicing assembly, and a supporting assembly bolted to the top of the splicing assembly. The splicing assembly includes a lower support chord plate; splicing screws, with splicing screws bolted to the through holes on both the upper and lower sides of the lower support chord plate; an I-beam, with the splicing screws threaded into the through holes on both the front and rear sides of the I-beam; a slotted plate, with a slotted plate welded and fixed to the top of the I-beam for positioning and fixing; support blocks, with support blocks bolted to the screw holes on both the left and right sides of the slotted plate; support rods, with support rods inserted and fixed to the through holes on the upper and lower sides of the support blocks; an upper support chord plate, with the I-beams fixedly mounted to the upper support chord plate by bolts; and hinges, with hinges bolted to the upper and lower sides of both the lower and upper support chord plates.

[0006] Preferably, the hinge component includes: a convex steel, with both the upper and lower sides of the lower and upper support chord plates in contact with the convex steel; a convex rod screw, with the convex rod screw bolted to the lower and upper support chord plates respectively through the through holes on the front and rear sides of the convex steel; a broken tooth screw, with a broken tooth screw threaded to the screw holes on the front and rear sides of the lower and upper support chord plates; a locking plate, with a locking plate threaded to the top or bottom side of the broken tooth screw; a T-shaped rod, with a T-shaped rod locked and fixed inside the locking plate; a fixing seat, with the broken tooth screw threaded to the screw hole on the bottom side of the fixing seat; and a main web rod, with the main web rod rotatably sleeved at the transverse axis of the fixing seat.

[0007] Preferably, both the lower support chord plate and the upper support chord plate are composed of two sets of symmetrically distributed concave plates, and the bottom connecting rod of the T-shaped rod is inserted and fixed at the central through hole of the convex steel.

[0008] Preferably, the reinforcing component includes: a side-connecting upper plate, the bottom side of which contacts the top of the upper support chord plate; a welded top seat, which is welded and fixed to both the front and rear sides of the top of the side-connecting upper plate; a locking rod, which is inserted and fixed between the connecting plates on the left and right sides of the welded top seat; a reinforcing rib, which is inserted and fixed to the bottom of the side-connecting upper plate; a side-connecting lower plate, where the reinforcing rib is inserted and fixed to the top slot of the side-connecting lower plate; and a limiting groove, which is provided on the front and rear sides of the side-connecting lower plate to avoid broken tooth screws.

[0009] Preferably, the support assembly includes: a bolt seat, on which the bolt is bolted to the top of the upper support chord plate; a double-ended screw, on which the double-ended screw is rotatably mounted; a snap-fit ​​screw cylinder, on which the screw heads on both the left and right sides of the double-ended screw are threadedly connected to the bottom screw cylinder of the snap-fit ​​screw cylinder; and an elbow pipe, on which the top mounting seat of the snap-fit ​​screw cylinder on the left side of the double-ended screw cylinder is welded and fixed.

[0010] Preferably, the support assembly further includes: a horizontal connecting rod, which is welded and fixed to the top mounting seat of the snap-fit ​​screw cylinder on the right side of the double-ended screw; a lateral inclined plate, which is welded and fixed to the right angle between the horizontal and vertical pipes of the elbow; a support rod frame, which is inserted and fixed to the top mounting seat of the elbow; and a bent seat, which is welded and fixed to the bottom middle side of the lateral inclined plate.

[0011] Preferably, a fixing rod head is welded and fixed to the top of the upper support chord plate, and the rod head is inserted and fixed to the hole groove on the side of the bolt seat. The snap-fit ​​screw cylinder is specifically composed of a screw cylinder and a mounting base welded together on the upper and lower sides.

[0012] Preferably, the elbow pipe is composed of a circular pipe arranged at right angles to the horizontal and vertical pipes and a sleeve on its top side, and the elbow at the bottom side of the elbow pipe is welded and fixed to the horizontal connecting rod.

[0013] Preferably, the support frame is composed of multiple sets of crossbars distributed in a longitudinal and latitudinal pattern, and the bottom through hole of the curved seat is inserted and fixed to the locking rod.

[0014] Preferably, the support frame is provided with an extension around its perimeter for installing a steel structure gable roof. This extension is specifically the length Z of the support frame extending beyond the edges of the splicing components and reinforcing components, calculated by Z=S*(0.75+0.25*N2 / N1). Wherein, the value S is the center distance between the top sleeves of the two adjacent sets of elbow pipes (34) on the top side of the upper support chord plate (17), the value N1 is the downward pressure formed by the snap-fit ​​screw (33) at the connection of the crossbar (35), and the value N2 is the downward pressure formed by the snap-fit ​​screw (33) at the connection of the elbow pipe (34).

[0015] The present invention has the following advantages: The present invention provides an improved grid-shaped splicing truss for steel structure houses, which, compared with similar equipment, has the following improvements: The present invention discloses a grid-shaped splicing truss for steel structure houses. Two sets of I-beams are fixedly installed on the left and right sides of the lower and upper support chord plates respectively using splicing bolts. Support blocks, with the insertion and fixing action of support rods, connect the lower and upper support chord plates to form a parallel state. Subsequently, convex steel is fixedly installed on the upper and lower sides of the lower and upper support chord plates using convex bolts. Side-connecting upper and lower plates are fixed to the side of the upper support chord plate using bolts. The load-bearing plate transmits gravity and pressure to the upper and lower support chord plates through the main web members. Changing the spacing of multiple sets of hinges alters the stress distribution of the overall crossbars of the lower and upper support chord plates, thereby improving the more even stress distribution and extending the service life of the lower and upper support chord plates.

[0016] The present invention describes a grid-shaped splicing truss for steel structure houses. Bolts are used to fix bolt seats to the top of the upper support chord plate, and the bent seats and locking rods are aligned and adjusted. Then, elbow pipes and crossbars are inserted and fixed to the mounting seats on the top side of the locking bolts using locking bolts. Finally, the support rod frame is fixed to the rod head on the top side of the elbow pipe. The data Z is obtained using the formula S*(0.75+0.25*N2 / N1), which determines the overall length of the steel structure house roof slab. This design facilitates the installation of hinged components by creating space at the top of the upper support chord plate using elbow pipes and crossbars, while also distributing gravity and pressure evenly on the top of the upper support chord plate, avoiding uneven pressure due to significant differences in the overall flatness of the upper support chord plate and the floor slab. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the splicing component and support component of the present invention; Figure 3 This is the invention Figure 1 Enlarged structural diagram at point A; Figure 4 This is the invention Figure 2 Enlarged structural diagram at point B; Figure 5 This is a three-dimensional structural diagram of the hinge component of the present invention; Figure 6 This is a three-dimensional structural diagram of the reinforcing component of the present invention; Figure 7 This is a three-dimensional structural diagram of the support component of the present invention; Figure 8 This is a schematic diagram of the connection structure of the support component of the present invention.

[0018] The components include: splicing assembly-1, reinforcing assembly-2, supporting assembly-3, lower supporting chord plate-11, splicing screw-12, I-beam-13, slot plate-14, supporting block-15, supporting insert rod-16, upper supporting chord plate-17, hinge-connector-18, convex steel-181, convex rod screw-182, broken tooth screw-183, positioning plate-184, T-shaped rod-185, fixing seat-186, main web rod-187, side upper plate-21, welded top seat-22, positioning rod-23, reinforcing rib plate-24, side lower plate-25, limiting groove-26, bolt seat-31, double-ended screw-32, snap-fit ​​screw cylinder-33, elbow pipe-34, cross joint rod-35, lateral inclined plate-36, supporting rod frame-37, and bent seat-38. Implementation

[0019] The following is in conjunction with the appendix Figures 1-8 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0020] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0022] Please see Figures 1-6 The present invention provides a grid-shaped splicing truss for steel structure houses, comprising a splicing component 1, reinforcing components 2 being bolted to the upper and lower sides of the splicing component 1, and a supporting component 3 being bolted to the top of the splicing component 1. The splicing assembly 1 includes a lower support chord plate 11. Splicing screws 12 are bolted to the through holes on both the upper and lower sides of the lower support chord plate 11. The splicing screws 12 are threaded into the through holes on both the front and rear sides of the I-beam 13, providing a limiting function for the I-beam 13. A slotted plate 14, which serves as a locking and fixing function, is welded to the top of the I-beam 13. Support blocks 15 are bolted to the screw holes on both the left and right sides of the slotted plate 14. Support rods 16 are inserted and fixed to the through holes on the upper and lower sides of the support blocks 15, providing an installation limiting effect for the support blocks 15. The I-beam 13 is bolted to the upper support chord plate 17. Hinges 18 are bolted to the upper and lower sides of both the lower support chord plate 11 and the upper support chord plate 17.

[0023] The hinge 18 includes a convex steel 181. The lower and upper sides of the lower support chord plate 11 and the upper support chord plate 17 are in contact with the convex steel 181. The convex steel 181 is bolted to the lower support chord plate 11 and the upper support chord plate 17 respectively through through holes on both sides via convex bolts 182. The convex bolts 182 provide a limiting effect for the installation of the convex steel 181. The threaded connections at the bolt holes on both sides of the lower support chord plate 11 and the upper support chord plate 17 are interrupted. A toothed screw 183 is threaded to a locking plate 184 on its top or bottom side. The broken toothed screw 183 provides a limiting effect for the locking plate 184 during installation. A T-shaped rod 185 is fixedly engaged inside the locking plate 184, providing a limiting effect for the locking plate 184. The broken toothed screw 183 is threaded into the screw hole on the bottom side of the fixing seat 186. A main web rod 187 is rotatably sleeved at the horizontal axis of the fixing seat 186.

[0024] Both the lower support chord plate 11 and the upper support chord plate 17 are composed of two sets of symmetrically distributed concave plates, and the bottom connecting rod of the T-shaped rod 185 is inserted and fixed at the central through hole of the convex steel 181.

[0025] The reinforcing component 2 includes a side upper plate 21, the bottom side of the upper support chord plate 17 is in contact with the top of the side upper plate 21, welding top seats 22 are welded and fixed on both the front and rear sides of the top of the side upper plate 21, and locking rods 23 are inserted and fixed between the connecting plates on the left and right sides of the welding top seats 22. The locking rods 23 are used to limit the installation between the welding top seats 22 and the support component 3. A reinforcing rib plate 24 is inserted and fixed at the bottom of the side upper plate 21. The reinforcing rib plate 24 is inserted and fixed at the top slot of the side lower plate 25. The side lower plate 25 has limiting slots 26 on the front and rear sides to avoid the broken tooth screw 183.

[0026] The working principle of a grid-shaped splicing truss for steel structure houses based on Embodiment 1 is as follows: During assembly, the two sets of I-beams 13 are fixedly installed on the left and right sides of the lower support chord plate 11 and the upper support chord plate 17 respectively by splicing screws 12. Then, the support block 15 is inserted into the through holes of the I-beams 13 on the left and right sides of the lower support chord plate 11 by the insertion and fixing action of the support rod 16. Then, the I-beams 13 on the left and right sides of the upper support chord plate 17 are hoisted on the top side of the support block 15 and the support rod 16 along with the upper support chord plate 17. At this time, the lower support chord plate 11 and the upper support chord plate 17 are parallel to each other, and the support block 15 is connected and fixed to the screw holes between the two sets of slot plates 14 by screws.

[0027] Subsequently, the convex steel 181 is fixedly installed on the upper and lower sides of the lower support chord plate 11 and the upper support chord plate 17 by means of the convex rod screw 182, and the broken tooth screw 183 is fixedly installed on the front and rear sides of the top side of the locking plate 184 by means of the torque applied, and the T-shaped rod 185 is inserted and fixed at the middle through hole of the convex steel 181. Then, the welded top seat 22 is snapped into place at the gap of the connecting plate of the upper support chord plate 17, and the side connecting plate 21 and the welded top seat 22 are fixed to the bottom side of the upper support chord plate 17 by means of bolts. Then, the locking rod 23 is inserted and fixed at the through hole of the welded top seat 22. Here, the locking rod 23 is connected to the support assembly 3. Then, reinforcing ribs 24 are installed one by one on the bottom side of the upper side plate 21, and the lower side plate 25 is fixedly installed on the side of the lower support chord plate 11 through the reinforcing ribs 24. At this time, the front and rear sides of the lower side plate 25 are respectively inserted into the concave groove of the lower support chord plate 11, and the limiting groove 26 is opened to avoid collision with the protruding screw 182 and the broken tooth screw 183. During the load-bearing process, the load-bearing plate transfers gravity and pressure to the upper support chord plate 17 via the support assembly 3. At this time, the main web members 187 transfer pressure and gravity to the lower support chord plate 11. The stability of the main web members 187 is improved by setting them in a triangular shape. Since multiple sets of hinges 18 are installed on the upper and lower sides of the lower support chord plate 11 and the upper support chord plate 17 respectively, the angles between the multiple sets of main web members 187 are different. This changes the spacing of the multiple sets of hinges 18 and thus changes the force distribution of the overall crossbar of the lower support chord plate 11 and the upper support chord plate 17. This improves the evenness of the force distribution of the lower support chord plate 11 and the upper support chord plate 17, while also increasing their service life. Example

[0028] Please see Figures 7-8 The present invention provides a grid-shaped splicing truss for steel structure houses. Compared with Embodiment 1, this embodiment further includes: a support component 3, which includes a bolt seat 31. The bolt seat 31 is bolted to the top of the upper support chord plate 17. A double-ended screw 32 is rotatably installed inside the bolt seat 31. The screw heads on both sides of the double-ended screw 32 are threadedly connected to the bottom screw of the snap-fit ​​screw cylinder 33. The double-ended screw 32 provides an installation limiting effect for the snap-fit ​​screw cylinder 33. The snap-fit ​​screw cylinder on the left side of the double-ended screw 32... The elbow pipe 34 is welded and fixed to the top side mounting seat of the 33. The elbow pipe 34 is fixed by the snap-fit ​​screw 33. The horizontal connecting rod 35 is welded and fixed to the top side mounting seat of the snap-fit ​​screw 33 on the right side of the double-ended screw 32. The horizontal connecting rod 35 is fixed by the snap-fit ​​screw 33. The right angle between the horizontal and vertical pipes of the elbow pipe 34 is welded and fixed to the side. The support rod frame 37 is inserted and fixed to the top side mounting seat of the elbow pipe 34. The bent seat 38 is welded and fixed to the bottom middle side of the side inclined plate 36.

[0029] The top of the upper support chord plate 17 is welded and fixed with a fixing rod head, which is inserted and fixed to the hole groove on the side of the bolt seat 31. The snap-fit ​​screw cylinder 33 is specifically composed of a screw cylinder and a mounting seat welded together on the upper and lower sides. The elbow pipe 34 is composed of a round pipe distributed at right angles horizontally and vertically and a sleeve on its top side. The elbow of the elbow pipe 34 is welded and fixed to the horizontal connecting rod 35 at the bottom elbow. The support rod frame 37 is specifically composed of multiple sets of horizontal bars distributed in a warp and weft direction. The bottom through hole of the bent seat 38 is inserted and fixed to the locking rod 23.

[0030] The support frame 37 has an extension around its perimeter for installing a steel structure double-sloped roof. This extension is specifically the length Z of the support frame 37 extending beyond the edges of the splicing component 1 and the reinforcing component 2. It is specifically calculated by Z=S*0.75+0.25*N2 / N1, where S is the center distance between the top sleeves of the two adjacent sets of elbow pipes 34 on the top side of the upper support chord plate 17, N1 is the downward pressure formed by the snap-fit ​​screw 33 at the connection of the crossbar 35, and N2 is the downward pressure formed by the snap-fit ​​screw 33 at the connection of the elbow pipe 34.

[0031] In this embodiment: During installation, workers can insert the through hole in the bolt seat 31 into the top protrusion of the upper support chord plate 17 and fix the bolt seat 31 to the top of the upper support chord plate 17 with bolts. At this time, the bent seat 38 and the locking rod 23 need to be aligned and adjusted. Then, by applying torque to the locking screw cylinder 33, the bottom threaded cylinder is threaded to the screw of the double-ended screw 32. Then, the elbow pipe 34 and the cross connecting rod 35 are respectively inserted and fixed to the mounting seat on the top side of the locking screw cylinder 33. Finally, the support rod bracket 37 is fixedly installed at the rod head on the top side of the elbow pipe 34. During the installation of the support frame 37, the data Z can be obtained using the formula S*(0.75+0.25*N2 / N1), where S is the center distance between the top sleeves of the two adjacent sets of elbow pipes 34, the downward pressure (stress) formed by the snap-fit ​​screw 33 at the connection of the horizontal connecting rod 35 is set as N1, and the downward pressure (stress) formed by the snap-fit ​​screw 33 at the connection of the elbow pipe 34 is set as N2. The obtained data Z is the length of the support frame 37 extending to the four edges of the splicing component 1 and the reinforcing component 2. This can determine the overall length of the roof panel of the steel structure house. It is beneficial to open up space at the top of the upper support chord plate 17 through the elbow pipe 34 and the horizontal connecting rod 35 to facilitate the installation of the hinge 18. At the same time, it will distribute the gravity and pressure evenly on the top of the upper support chord plate 17, avoiding the phenomenon of uneven pressure due to the large difference in the overall flatness of the upper support chord plate 17 and the floor slab.

[0032] This invention provides an improved grid-shaped splicing truss for steel structure houses. Two sets of I-beams 13 are fixedly installed on the left and right sides of the lower support chord plate 11 and the upper support chord plate 17 respectively using splicing bolts 12. Support blocks 15, with the insertion and fixing action of support rods 16, connect the lower support chord plate 11 and the upper support chord plate 17, forming a parallel state. Subsequently, convex steel 181 is fixedly installed on the upper and lower sides of the lower support chord plate 11 and the upper support chord plate 17 using convex bolts 182. Side connecting upper plates 21 and side connecting lower plates 25 are fixed to the side of the upper support chord plate 17 using bolts. The load-bearing plate transmits gravity and pressure to the upper support chord plate 17 and the lower support chord plate 11 through the main web members 187. Changing the spacing of multiple sets of hinges 18 alters the force distribution of the overall crossbars of the lower support chord plate 11 and the upper support chord plate 17, thereby improving the load-bearing capacity of the lower support chord plate 11 and the upper support chord plate 17. While ensuring a more even force distribution, the service life of the lower support chord plate 11 and the upper support chord plate 17 is improved. The bolt seat 31 is fixed to the top of the upper support chord plate 17 with bolts, and the bent seat 38 is aligned and adjusted with the locking rod 23. Then, the elbow pipe 34 and the cross rod 35 are respectively inserted and fixed to the mounting seat on the top side of the locking bolt cylinder 33 through the locking screw cylinder 33. Finally, the support rod frame 37 is fixed to the rod head on the top side of the elbow pipe 34. The data Z is obtained by using the formula S*(0.75+0.25*N2 / N1), which can determine the overall length of the roof plate of the steel structure house. This is beneficial for opening up space at the top of the upper support chord plate 17 through the elbow pipe 34 and the cross rod 35 to facilitate the installation of the hinge 18. At the same time, the gravity and pressure are evenly distributed on the top of the upper support chord plate 17, avoiding uneven pressure due to the large difference in the overall flatness of the upper support chord plate 17 and the floor slab.

[0033] The above description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grid-shaped splicing truss for steel structure houses, comprising a splicing component (1), wherein reinforcing components (2) are respectively bolted to the upper and lower sides of the splicing component (1), and a supporting component (3) is bolted to the top of the splicing component (1). The splicing assembly (1) includes a lower support chord plate (11); splicing screws (12), which are bolted to the through holes on both the upper and lower sides of the lower support chord plate (11); an I-beam (13), which is threaded onto the through holes on both the front and rear sides of the I-beam (13); a slot plate (14), which is welded to the top of the I-beam (13) to provide a locking and fixing function; a support block (15), which is bolted to the screw holes on both the left and right sides of the slot plate (14); a support rod (16), which is inserted and fixed to the through holes on both the upper and lower sides of the support block (15); an upper support chord plate (17), which is bolted to the I-beam (13); and a hinge (18), which is bolted to the upper and lower sides of both the lower support chord plate (11) and the upper support chord plate (17). The hinge (18) includes: A convex steel (181) is provided, with both the upper and lower sides of the lower support chord plate (11) and the upper support chord plate (17) in contact with the convex steel (181); a convex rod screw (182) is provided, with the convex steel (181) being bolted to the lower support chord plate (11) and the upper support chord plate (17) respectively through the through holes on the front and rear sides; a broken tooth screw (183) is provided, with broken tooth screws threaded into the screw holes on the front and rear sides of the lower support chord plate (11) and the upper support chord plate (17). Toothed screw (183); locking plate (184), the top or bottom side of the broken toothed screw (183) is threadedly connected to the locking plate (184); T-shaped rod (185), the locking plate (184) is internally locked and fixed to the T-shaped rod (185); fixing seat (186), the broken toothed screw (183) is threadedly installed at the bottom screw hole of the fixing seat (186); main web rod (187), the fixing seat (186) is rotatably sleeved at the horizontal axis.

2. The grid-shaped splicing truss for steel structure houses according to claim 1, characterized in that: The lower support chord plate (11) and the upper support chord plate (17) are both composed of two sets of symmetrically distributed concave plates, and the bottom connecting rod of the T-shaped rod (185) is inserted and fixed at the central through hole of the convex steel (181).

3. The grid-shaped splicing truss for steel structure houses according to claim 1, characterized in that: The reinforcing component (2) includes: a side-connecting upper plate (21), the bottom side of the upper support chord plate (17) is in contact with the top of the side-connecting upper plate (21); a welding top seat (22), welding top seats (22) are welded and fixed on both the front and rear sides of the top of the side-connecting upper plate (21); a locking rod (23), a locking rod (23) is inserted and fixed between the connecting plates on the left and right sides of the welding top seat (22); a reinforcing rib plate (24), a reinforcing rib plate (24) is inserted and fixed at the bottom of the side-connecting upper plate (21); a side-connecting lower plate (25), the reinforcing rib plate (24) is inserted and fixed at the top slot of the side-connecting lower plate (25); and a limiting groove (26), a limiting groove (26) is provided on the front and rear sides of the side-connecting lower plate (25) to avoid the broken tooth screw (183).

4. A grid-shaped splicing truss for steel structure houses according to claim 1, characterized in that: The support assembly (3) includes: a bolt seat (31), which is bolted to the top of the upper support chord plate (17); a double-ended screw (32), which is rotatably mounted inside the bolt seat (31); a snap-fit ​​screw cylinder (33), the screw heads on both sides of the double-ended screw (32) are threaded to the bottom screw cylinder of the snap-fit ​​screw cylinder (33); and an elbow pipe (34), which is welded to the mounting seat on the top side of the snap-fit ​​screw cylinder (33) on the left side of the double-ended screw (32).

5. A grid-shaped splicing truss for steel structure houses according to claim 4, characterized in that: The support assembly (3) further includes: a horizontal connecting rod (35), which is welded and fixed to the top mounting seat of the snap-fit ​​screw cylinder (33) on the right side of the double-headed screw (32); a lateral inclined plate (36), which is welded and fixed to the right angle between the horizontal and vertical pipes of the elbow pipe (34); a support rod frame (37), which is inserted and fixed to the top mounting seat of the elbow pipe (34); and a bent seat (38), which is welded and fixed to the bottom middle side of the lateral inclined plate (36).

6. A grid-shaped splicing truss for steel structure houses according to claim 4, characterized in that: The top of the upper support chord plate (17) is welded and fixed with a fixing rod head, and the rod head is inserted and fixed with the hole groove on the side of the bolt seat (31). The snap-fit ​​screw cylinder (33) is specifically composed of a screw cylinder and a mounting seat welded together on the upper and lower sides.

7. A grid-shaped splicing truss for steel structure houses according to claim 4, characterized in that: The elbow pipe (34) consists of a circular pipe arranged at right angles in the horizontal and vertical directions and a sleeve on its top side, and the elbow of the elbow pipe (34) is welded and fixed to the horizontal connecting rod (35) at the bottom elbow.

8. A grid-shaped splicing truss for steel structure houses according to claim 5, characterized in that: The support frame (37) is composed of multiple sets of horizontal bars distributed in a longitudinal and latitudinal pattern, and the bottom through hole of the curved seat (38) is inserted and fixed to the locking rod (23).

9. A grid-shaped splicing truss for steel structure houses according to claim 5, characterized in that: The support frame (37) is provided with an extension around its perimeter for installing a steel structure double-sloped roof. The extension is specifically the length Z of the support frame (37) extending out from the edges of the splicing component (1) and the reinforcing component (2), which is calculated by Z=S*(0.75+0.25*N2 / N1). Wherein, the value S is the center distance between the top sleeves of the two adjacent sets of elbow pipes (34) on the top side of the upper support chord plate (17), the value N1 is the downward pressure formed by the snap-fit ​​screw (33) at the connection of the crossbar (35), and the value N2 is the downward pressure formed by the snap-fit ​​screw (33) at the connection of the elbow pipe (34).

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