Dovetail joint type modularized steel structure house

Abstract

The invention relates to the technical field of steel structure fabricated buildings, and discloses a dovetail joint type modular steel structure house which comprises a modular house body, a side plate A, a side plate B, a positioning plate A, a positioning plate B, dovetail joints and sealing plates. The side plate A and the side plate B are respectively welded on two adjacent modular houses; the positioning plate A and the positioning plate B are located in a cavity defined by the modular house, the two side plates A and the two side plates B; a dovetail mortise A is formed in the positioning plate A, and a dovetail mortise B is formed in the positioning plate B; the dovetail tenon is inserted into a positioning opening formed by butt joint of the dovetail mortise A and the dovetail mortise B; the dovetail tenon is buckled on the positioning plate B through the pre-locking buckle; the sealing plates are in threaded butt joint with the front and rear ends of the positioning plate A and the positioning plate B and are used for sealing the positioning plate A, the positioning plate B and the dovetail joint. Based on a traditional tenon-and-mortise structure, through the precisely-designed dovetail tenons and the corresponding mortises, rapid and accurate connection between modular houses is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure assembled buildings, and in particular relates to a dovetail type modular steel structure house. Background Art

[0002] Modular buildings refer to low-rise or multi-story buildings that are made by assembling and connecting one or more building units as prefabricated modules, which are prefabricated in factories or assembled on site and have functional light steel structure building modules. Each prefabricated module can be a room unit with complete decoration, heating, sewerage, lighting and other pipe networks. Modular units can be used to form complete rooms, or as part of a large room, or to make some special service units.

[0003] The modular method of steel structure is widely used in single- and multi-story smart houses, cultural and tourism cabins and other buildings. From the characteristics of modular buildings, it can be seen that each module unit is a complete structural system composed of top beams, bottom beams and columns. Adjacent modules transfer loads and coordinate deformation through corresponding connection nodes, so that multiple units form an overall structure of a certain scale.

[0004] After the above installation is completed to form a single cabin, it is often necessary to assemble a multi-cabin structure according to actual requirements due to the use function and other requirements to adapt to different scenarios. The existing bolt connection method has the disadvantages of long construction period, complex process, and easy damage to the cabin. The traditional bolt connection method requires drilling and bolt tightening operations on site. These steps are time-consuming, especially in large modular building projects, which will significantly extend the construction period. Bolt connection requires precise measurement and drilling, which requires high skills of construction workers, and it is easy to cause loose connections due to construction errors. Bolt connection may leave holes on the cabin, which may affect the waterproof and thermal insulation properties of the cabin, and long-term use may also cause cabin structure fatigue. The disassembly and assembly process of bolt connection is relatively cumbersome, and the bolts need to be loosened and tightened one by one. For modular houses that are frequently disassembled and assembled, it will increase maintenance costs and time.

[0005] In view of this, we propose a dovetail modular steel structure house to solve the above problems. Summary of the invention

[0006] The present invention aims to solve the technical problems that the modular houses in the prior art have a long construction period, a complex process, and are prone to damage to the cabin by means of bolt connection.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A dovetail joint type modular steel structure house, comprising a modular house, a side plate A and a side plate B, a positioning plate A and a positioning plate B, a dovetail joint and a sealing plate;

[0009] The side panels A and B are respectively welded at the joints at both ends of two adjacent modular houses on the left and right or on the top and bottom;

[0010] After the positioning plate A and the positioning plate B are butt-jointed, they are located in a cavity surrounded by two adjacent modular houses and two side plates A and two side plates B; a plurality of dovetail mortise holes A are arranged at equal intervals on the positioning plate A, and dovetail mortise holes B that are butt-jointed with the dovetail mortise holes A are arranged at equal intervals on the positioning plate B;

[0011] The dovetail tenon is inserted into the positioning opening formed by the dovetail tenon eye A and the dovetail tenon eye B. Pre-locking buckles are provided at both ends of the channel inside the dovetail tenon, and the dovetail tenon is buckled on the positioning plate B through the pre-locking buckles.

[0012] The sealing plate is threadedly connected to the front and rear ends of the positioning plate A and the positioning plate B and is used to seal the positioning plate A, the positioning plate B and the dovetail tenon.

[0013] The dovetail-type modular steel structure house is mainly based on the traditional mortise and tenon structure. Through the precisely designed dovetail and corresponding mortise, the modular houses can be quickly and accurately connected. The modular house is composed of multiple prefabricated modular units, each of which has a complete structural system, including top beams, bottom beams and columns. The side panels A and B are welded at the joints of adjacent modular houses to form the basis for connection. After the positioning plates A and B are butt-jointed, they are located inside the cavity surrounded by the adjacent modular houses and the side panels A and B. The positioning plate A is provided with a dovetail mortise A, and the positioning plate B is provided with a corresponding dovetail mortise B. The dovetail is inserted into the positioning opening formed by the two mortises to achieve precise alignment and connection. Pre-locking buckles are provided at both ends of the channel inside the dovetail. After the dovetail is inserted into place, the pre-locking buckle can be locked on the positioning plate B through a mechanical structure to ensure the stability of the connection. The sealing plate is butt-jointed with the front and rear ends of the positioning plates A and B through threads to block the positioning plates and dovetails, completing the final fixation and sealing.

[0014] Preferably, longitudinal side limiting grooves are respectively provided at the center positions of the left and right ends of the positioning plates A and B, and the protrusions A on the two side plates A and the protrusions B on the two side plates B are matched and plugged into the side limiting grooves, thereby avoiding position deviation during installation and improving assembly accuracy.

[0015] Preferably, bolt holes A are provided on side plate A, bolt holes B are provided on side plate B, and connecting threaded holes A are provided on the left and right sides of positioning plates A and B, respectively, and side plate A is fixed to positioning plates A and B by bolts passing through bolt holes A and connecting threaded holes A, and side plate B is fixed to positioning plates A and B by bolts passing through bolt holes B and connecting threaded holes A. Through the design of bolt holes A, bolt holes B and connecting threaded holes A, a stable connection between side plates A and side plates B and positioning plates A and positioning plates B can be achieved.

[0016] Preferably, the front and rear sides of the positioning plate A and the positioning plate B are respectively provided with connecting threaded holes B, and the sealing plate is provided with bolt holes C symmetrically arranged with the connecting threaded holes B. The sealing plate is fixed to the positioning plate A and the positioning plate B by threads passing through the bolt holes C and the bolts connected to the connecting threaded holes B. The sealing plate is fixed by the bolts connected to the threaded holes C and the connecting threaded holes B, which can effectively close the gap between the positioning plate A and the positioning plate B, improve the overall sealing, and help waterproof and heat preservation. The fixing of the sealing plate increases the strength of the entire structure and prevents structural problems caused by loose connections.

[0017] Preferably, a positioning groove is provided at the bottom of the left end of the positioning plate A; and a positioning protrusion is provided at the top of the left end of the positioning plate B to be inserted into the positioning groove. The design of the positioning groove and the positioning protrusion ensures accurate alignment between the positioning plates A and B, avoiding misalignment during installation.

[0018] Preferably, a limiting groove is provided at the bottom of the dovetail mortise B of the positioning plate B; and a limiting block is provided at the bottom of the dovetail tenon to be inserted into the limiting groove. The use of the limiting groove and the limiting block together can ensure that the dovetail tenon can be accurately aligned when inserted into the dovetail mortise B, thereby avoiding installation problems caused by inaccurate alignment.

[0019] Preferably, the cross-sectional sizes of the two ends of the dovetail tenon are different and correspond to the opening sizes of the dovetail tenon eye A and the dovetail tenon eye B.

[0020] Preferably, the pre-locking buckle comprises an inverted U-shaped support plate fixed in the channel and provided with inverted U-shaped limit sliding grooves on both sides, a pre-locking block located below the inverted U-shaped support plate and fixedly connected to the inverted U-shaped support plate and locked with the positioning plate B through two groups of symmetrically arranged springs, an inverted L-shaped lever fixed at the top of the pre-locking block and penetrating the inverted U-shaped support plate, a toggle block fixed on the inverted L-shaped lever away from the pre-locking block at one end, and a cover plate located above the toggle block. The setting of the pre-locking buckle allows for quick pre-fixation during installation, ensuring the initial stability of the installation. The structural design of the pre-locking buckle allows installers to easily lock and unlock the dovetail tenon, facilitating installation and disassembly.

[0021] Preferably, the pre-locking block is provided with a guide block that cooperates with the inverted U-shaped limiting sliding groove for sliding guidance, thereby providing a sliding guide for the pre-locking block.

[0022] Preferably, both ends of the channel on the dovetail tenon are covered with cover plates, and windows are provided on the cover plates to fit the toggle block, and the cover plate is located on the inner side of the cover plate and blocks the windows. The provision of the cover plate and the cover plate can protect the pre-locking buckle and other structures inside the dovetail tenon, prevent dust and other debris from entering, and extend the service life of the component.

[0023] Compared with the prior art, the technical effects and advantages of the present invention are:

[0024] The dovetail-type modular steel structure house has side panels A and B welded on the modular house. The side panels A and B have convex blocks, and the positioning panels A and B have grooves. The positioning panels A and B are fixed to the upper and lower surfaces or the left and right surfaces of the modular house by insertion, so that the positioning panels A and B can be accurately positioned with the side panels A and B. The side panels A and B and the positioning panels A and B are provided with reserved holes, and rivets are driven in to fix them after alignment. The positioning panels A and B are provided with positioning openings, and the dovetail is inserted after being fixed in place. The cross-sections of the two ends of the dovetail are different in size, corresponding to the size of the openings on the positioning panels A and B, and are inserted from both sides of the positioning panels A and B at intervals. The dovetail is provided with a limit block, so that the dovetail is accurately positioned with the positioning panels A and B. A pre-locking buckle structure is provided at the dovetail tenon, and preliminary fixation can be achieved after insertion to ensure the safety of structural installation. The side panels A and B are consistent with the side length of the modular house building. The lengths of the positioning panels A and B and the dovetail tenon are slightly smaller than those of the side panels A and B. After the positioning panels A and B and the dovetail tenon are installed, the sealing panels are installed to fix the positioning panels A and B and the dovetail tenon.

[0025] The design of dovetail and positioning plate allows for quick installation and disassembly, and the setting of pre-locking buckles can achieve initial fixation, which greatly reduces the installation cycle and improves construction efficiency. This design also ensures the free combination of up and down, left and right of modular buildings, increasing the flexibility of the building. The variable cross-section design of dovetail and mortise makes it possible to integrate architectural decoration and seamless installation.

[0026] When modular house assembly is not required, the upper left and right side panels can be used as closed panels to form a ventilated roof, which helps reduce solar radiation heat and improve indoor comfort. The lower left and right side panels can be used as column feet to effectively isolate ground moisture and protect the building structure. The middle sealing panel can be combined with LED light strips and photovoltaic panels, which is not only beautiful, but also provides lighting and power generation functions, achieving energy conservation and environmental protection.

[0027] The stability of the overall structure is ensured through precise positioning and fixed design. The installation process has no effect on the original structure and waterproof insulation of the modular house, maintaining the original performance of the building. The setting of the pre-locking buckle and the stability of the mortise and tenon joints improve the safety of construction. In summary, the dovetail modular steel structure house technology provides an efficient, stable and versatile solution for the field of modular construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of the sealing plate installation of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the upper and lower combinations of the modular house of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the upper and lower and left and right combinations of the modular house of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the installation of the side panel A and the side panel B of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the positioning plate A, positioning plate B, dovetail joint, sealing plate, side plate A, and side plate B of the present invention;

[0033] Figure 6 The figure is a structural diagram of the positioning plate A and the positioning plate B of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the dovetail tenon of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the present invention after the upper cover plate of the dovetail joint is removed;

[0036] Fig. 9 It is a structural schematic diagram of an inverted U-shaped support plate and a pre-locking block of the present invention;

[0037] Fig.10 It is a structural schematic diagram of the side panel A of the present invention;

[0038] Fig.11 It is a structural schematic diagram of the side panel B of the present invention;

[0039] Fig.12 It is a structural schematic diagram of the sealing plate of the present invention.

[0040] In the figure:

[0041] 100. Modular house; 1. Positioning plate A; 2. Positioning plate B; 3. Dovetail joint; 4. Closing plate; 5. Side plate A; 6. Side plate B;

[0042] 1.1, side limit groove; 1.2, positioning groove; 1.3, dovetail mortise A; 1.4, connecting threaded hole B;

[0043] 2.1, positioning protrusion; 2.2, connecting threaded hole A; 2.3, dovetail mortise B; 2.4, limiting groove;

[0044] 3.1, inverted U-shaped limit sliding groove; 3.2, inverted U-shaped support plate; 3.3, spring; 3.4, pre-locking block; 3.5, inverted L-shaped lever; 3.6, toggle block; 3.7, cover plate; 3.8, cover plate; 3.9, window; 3.10, channel; 3.11, limit block; 3.12, guide block;

[0045] 4.1, bolt hole C;

[0046] 5.1. Bump A; 5.2. Bolt hole A;

[0047] 6.1. Bolt hole B; 6.2. Bump B. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] The following is combined with Figure 1-12 To further explain this application in detail,

[0050] The embodiment of the present application discloses a dovetail type modular steel structure house, including a modular house 100;

[0051] The joints of two modular houses 100 adjacent to each other on the left and right or adjacent to each other in the top and bottom are provided with side panels A5 and side panels B6 welded at both ends of the modular houses 100, and the chambers surrounded by the two adjacent modular houses 100 and the two side panels A5 and the two side panels B6 are provided with butt-jointed positioning panels A1 and B2; the positioning panel A1 is provided with a plurality of dovetail tenons A1.3 arranged at equal intervals, and the positioning panel B2 is provided with dovetail tenons B2.3 butt-jointed with the dovetail tenons A1.3 arranged at equal intervals, and the positioning openings formed by butt-jointing the dovetail tenons A1.3 and the dovetail tenons B2.3 are inserted with dovetail tenons 3, and the front and rear ends of the positioning panels A1 and B2 are butt-jointed with threaded joints, and a sealing panel 4 for sealing the positioning panels A1, the positioning panels B2 and the dovetail tenons 3 is provided;

[0052] The center positions of the left and right ends of the positioning plates A1 and B2 are respectively provided with longitudinally arranged side limiting grooves, and the protrusions A5.1 on the two side plates A5 and the protrusions B6.2 on the two side plates B6 are matched and plugged into the side limiting grooves. The matching and plug-in design of the side limiting grooves and the protrusions A5.1 and B6.2 can ensure that the side plates A5 and B6 can be accurately aligned with the positioning plates A1 and B2, avoiding positional offset during the installation process and improving the assembly accuracy. Through the cooperation of the side limiting grooves and the protrusions, the connection stability between the side plates and the positioning plates is enhanced, and the shaking and displacement at the connection are reduced, thereby improving the stability of the overall structure. This design simplifies the installation process and makes the assembly process more intuitive and convenient.

[0053] Bolt holes A5.2 are provided on the side plate A5, bolt holes B6.1 are provided on the side plate B6, and connecting threaded holes A2.2 symmetrically arranged with the bolt holes A5.2 and the bolt holes B6.1 are provided on the left and right sides of the positioning plates A1 and B2, respectively. The side plate A5 is fixed to the positioning plates A1 and B2 by bolts penetrating the bolt holes A5.2 and the connecting threaded holes A2.2, and the side plate B6 is fixed to the positioning plates A1 and B2 by bolts penetrating the bolt holes B6.1 and the connecting threaded holes A2.2;

[0054] The front and rear sides of the positioning plate A1 and the positioning plate B2 are respectively provided with connecting threaded holes B1.4, and the sealing plate 4 is provided with bolt holes C4.1 symmetrically arranged with the connecting threaded holes B1.4. The sealing plate 4 is fixed to the positioning plate A1 and the positioning plate B2 by means of threads penetrating the bolt holes C4.1 and bolts connected to the connecting threaded holes B1.4.

[0055] Through the design of bolt holes A5.2, bolt holes B6.1 and connecting threaded holes A2.2, a stable connection between side panels A5 and B6 and positioning plates A1 and B2 can be achieved. The tightening action of the bolts provides additional connection strength to ensure the safety of the structure. Bolt connection is more reliable than other connection methods (such as welding), easy to inspect and maintain, and reduces building hidden dangers caused by connection problems. The sealing plate 4 is fixed with bolts through threaded holes C and connecting threaded holes B1.4, which can effectively close the gap between positioning plate A1 and positioning plate B2, improve the overall sealing, and help waterproof and heat preservation. The fixing of the sealing plate 4 increases the strength of the entire structure and prevents structural problems caused by loose connections. The design of the sealing plate 4 can also enhance the overall appearance of the building, making the connection more neat and beautiful.

[0056] A positioning groove 1.1 and a side limiting groove 1.2 are provided at the bottom of the left end of the positioning plate A1; a positioning protrusion 2.1 is provided at the top of the left end of the positioning plate B2 to be inserted into the positioning groove 1.2; the design of the positioning groove 1.2 and the positioning protrusion 2.1 ensures the accurate alignment between the positioning plate A1 and the positioning plate B2, avoiding the misalignment problem during the installation process. This design makes the installation process simpler and faster, and reduces the measurement and adjustment work required during installation. The insertion of the positioning protrusion 2.1 increases the stability of the connection, further ensuring the safety and durability of the structure.

[0057] A limiting groove 2.4 is provided at the bottom of the dovetail tenon B2.3 of the positioning plate B2; a limiting block 3.11 is provided at the bottom of the dovetail tenon 3 to be inserted into the limiting groove 2.4. The use of the limiting groove 2.4 and the limiting block 3.11 together can ensure that the dovetail tenon 3 can be accurately aligned when inserted into the dovetail tenon B2.3, avoiding installation problems caused by inaccurate alignment. The insertion of the limiting block 3.11 into the limiting groove 2.4 can prevent the dovetail tenon 3 from excessive movement after installation, thereby enhancing the stability of the structure. By limiting the range of movement of the dovetail tenon 3, potential safety risks caused by loose parts can be reduced.

[0058] The cross-sectional sizes at both ends of the dovetail tenon 3 are different and correspond to the opening sizes of the dovetail tenon eye A1.3 and the dovetail tenon eye B2.3; the cross-sectional sizes at both ends of the dovetail tenon 3 are different and correspond to the opening sizes of the dovetail tenon eye A1.3 and the dovetail tenon eye B2.3. The design of the dovetail tenon 3 corresponding to the opening size can improve the strength of the connection and make the structure more solid. Since the size of the dovetail tenon 3 and the dovetail tenon eye 3 match, it is easier to align during installation, reducing the difficulty and time of installation.

[0059] Pre-locking buckles are provided at both ends of the channel 3.10 on the inner side of the dovetail tenon 3, and the dovetail tenon 3 is buckled on the positioning plate B2 by the pre-locking buckles. The pre-locking buckles include an inverted U-shaped support plate 3.2 fixed in the channel 3.10 and provided with inverted U-shaped limiting sliding grooves 3.1 on both sides, a pre-locking block 3.4 located below the inverted U-shaped support plate 3.2 and fixedly connected to the inverted U-shaped support plate 3.2 by two sets of symmetrically arranged springs 3.3 and locked with the positioning plate B2, an inverted L-shaped lever 3.5 fixed at the top of the pre-locking block 3.4 and penetrating the inverted U-shaped support plate 3.2, a toggle block 3.6 fixed on the inverted L-shaped lever 3.5 at one end away from the pre-locking block 3.4, and a cover hole plate 3.7 located above the toggle block 3.6, and a guide block 3.12 is provided on the pre-locking block 3.4 for sliding guidance in cooperation with the inverted U-shaped limiting sliding groove 3.1. The two ends of the channel 3.10 on the dovetail 3 are covered with a cover plate 3.8, and a window 3.9 is provided on the cover plate 3.8 for the toggle block 3.6 to penetrate therethrough. The cover hole plate 3.7 is located on the inner side of the cover plate 3.8 and blocks the window 3.9.

[0060] When the pre-locking buckle buckles the dovetail tenon 3 on the positioning plate B2, the pre-locking block 3.4 cooperates and locks with the positioning plate B2. When unlocking, the toggle block 3.6 is pushed upward, the pre-locking block 3.4 is lifted, the spring 3.3 is compressed, and the pre-locking block 3.4 contacts and locks with the positioning plate B2.

[0061] The setting of the pre-locking buckle allows quick pre-fixing during the installation process, ensuring the initial stability of the installation. The design of the pre-locking buckle includes components such as an inverted U-shaped support plate 3.2, a spring 3.3, and a pre-locking block 3.4, which provide installation guidance and make the installation process more intuitive. The structural design of the pre-locking buckle allows the installer to easily lock and unlock the dovetail 3, which is convenient for installation and removal. The setting of the pre-locking block 3.4 and the inverted L-shaped lever 3.5 increases the safety of the connection and prevents accidental detachment during the installation process. The use of the guide block 3.12 in conjunction with the inverted U-shaped limit sliding groove 3.1 provides a sliding guide for the pre-locking block 3.4, ensuring that the pre-locking block 3.4 can slide into place smoothly and accurately. The setting of the cover plate 3.8 and the cover hole plate 3.7 can protect the pre-locking buckle and other structures inside the dovetail 3, prevent dust and other debris from entering, and extend the service life of the component. The window 3.9 opened on the cover plate 3.8 allows the toggle block 3.6 to be easily inserted, which is convenient for the operation of the installer. The cover plate 3.7 blocks the window 3.9, thereby improving the sealing performance of the joint of the dovetail 3 and facilitating waterproofing and dustproofing.

[0062] The dovetail 3-type modular steel structure smart house is mainly based on the traditional mortise and tenon structure. Through the precisely designed dovetail 3 and the corresponding mortise, the modular houses 100 are connected quickly and accurately. The modular house 100 is composed of a plurality of prefabricated modular units, each of which has a complete structural system, including a top beam, a bottom beam and a column. The side panels A5 and B6 are welded at the joints of the adjacent modular houses 100 to form the basis for the connection. After the positioning plate A1 and the positioning plate B2 are butt-jointed, they are located inside the cavity surrounded by the adjacent modular houses 100 and the side panels A5 and B6. The positioning plate A1 is provided with a dovetail mortise A1.3, and the positioning plate B2 is provided with a corresponding dovetail mortise B2.3. The dovetail 3 is inserted into the positioning opening formed by the two mortises to achieve precise alignment and connection. Pre-locking buckles are provided at both ends of the channel 3.10 inside the dovetail 3. The pre-locking buckles can be locked on the positioning plate B2 through a mechanical structure after the dovetail 3 is inserted into place to ensure the stability of the connection. The sealing plate 4 is butted with the front and rear ends of the positioning plates A1 and B through threads, sealing the positioning plates and the dovetail tenon 3, thereby completing the final fixation and sealing.

[0063] The combination of the dovetail 3 and the mortise makes the installation of the modular house 100 quick and easy, and the pre-locking mechanism can quickly achieve initial fixation. The precise design of the dovetail 3 and the mortise ensures the high-precision alignment of the modular house 100, improving the overall quality and performance of the building. Through the fixation of the pre-locking buckle and the sealing plate 4, the connection has a high stability and can withstand a certain amount of external force and environmental pressure. The dovetail 3-type connection structure is easy to disassemble and reinstall, which is convenient for future maintenance and upgrades. This connection method is suitable for various modular steel structure buildings and can be flexibly applied to different construction scenarios and needs. The sealing and neat appearance of the dovetail 3-type connection structure provide a good visual effect for the building.

[0064] Compared with the traditional installation method with its high processing precision, great installation difficulty, large number of components, and low efficiency, the mortise and tenon joint design is easy to install and dismantle, can be pre-fixed, greatly reduces the installation period, and can realize the free combination of modular buildings up and down and left and right, without affecting the original structure and waterproof insulation of modular houses; the two ends and mortises of the dovetail tenon adopt a variable cross-section design, and the two sides are successively driven into the mortise to be firmly fixed, without the need to reserve space for the installation work surface, etc., to achieve the integration of architectural decoration and seamless installation. When the modular house assembly is not required, the upper left and right side panels can be closed to form a ventilated roof and reduce solar radiation heat; the lower left and right side panels can be used as column feet to isolate ground moisture; the middle sealing plate can be combined with LED light strips and photovoltaic panels.

[0065] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dovetail type modular steel structure house, characterized in that: include: Side panels A (5) and side panels B (6), the side panels A (5) and side panels B (6) are respectively welded to the joints at both ends of two adjacent modular houses (100) on the left and right or on the top and bottom; The positioning plate A (1) and the positioning plate B (2) are arranged in a cavity surrounded by two adjacent modular houses (100) and two side plates A (5) and two side plates B (6) after being connected. The positioning plate A (1) is provided with a plurality of dovetail mortise holes A (1.3) arranged at equal intervals, and the positioning plate B (2) is provided with dovetail mortise holes B (2.3) connected to the dovetail mortise holes A (1.3) arranged at equal intervals. The dovetail tenon (3) is inserted into a positioning opening formed by the dovetail tenon eye A (1.3) and the dovetail tenon eye B (2.3); both ends of the channel (3.10) inside the dovetail tenon (3) are provided with pre-locking buckles, and the dovetail tenon (3) is buckled on the positioning plate B (2) through the pre-locking buckles; The sealing plate (4) is threadedly connected to the front and rear ends of the positioning plate A (1) and the positioning plate B (2) and is used to seal the positioning plate A (1), the positioning plate B (2) and the dovetail tenon (3).

2. The dovetail joint modular steel structure house according to claim 1, characterized in that: The center positions of the left and right ends of the positioning plate A (1) and the positioning plate B (2) are respectively provided with longitudinally arranged side limiting grooves (1.1), and the protrusions A (5.1) on the two side plates A (5) and the protrusions B (6.2) on the two side plates B (6) are matched and plugged into the side limiting grooves (1.1).

3. The dovetail joint modular steel structure house according to claim 1, characterized in that: The side plate A (5) is provided with a bolt hole A (5.2), the side plate B (6) is provided with a bolt hole B (6.1), and the left and right sides of the positioning plate A (1) and the positioning plate B (2) are respectively provided with connecting threaded holes A (2.2) symmetrically arranged with the bolt hole A (5.2) and the bolt hole B (6.1). The side plate A (5) is fixed to the positioning plate A (1) and the positioning plate B (2) by bolts penetrating the bolt hole A (5.2) and the connecting threaded holes A (2.2), and the side plate B (6) is fixed to the positioning plate A (1) and the positioning plate B (2) by bolts penetrating the bolt hole B (6.1) and the connecting threaded holes A (2.2).

4. The dovetail joint modular steel structure house according to claim 1, characterized in that: The front and rear sides of the positioning plate A (1) and the positioning plate B (2) are respectively provided with connecting threaded holes B (1.4), and the sealing plate (4) is provided with bolt holes C (4.1) symmetrically arranged with the connecting threaded holes B (1.4). The sealing plate (4) is fixed to the positioning plate A (1) and the positioning plate B (2) by means of threads penetrating the bolt holes C (4.1) and bolts connected to the connecting threaded holes B (1.4).

5. The dovetail joint type modular steel structure house according to claim 1, characterized in that: A positioning groove (1.2) is provided at the bottom of the left end of the positioning plate A (1); and a positioning protrusion (2.1) inserted into the positioning groove (1.2) is provided at the top of the left end of the positioning plate B (2).

6. The dovetail joint modular steel structure house according to claim 1, characterized in that: A limiting groove (2.4) is provided at the bottom of the dovetail tenon B (2.3) of the positioning plate B (2); and a limiting block (3.11) inserted into the limiting groove (2.4) is provided at the bottom of the dovetail tenon (3).

7. The dovetail joint modular steel structure house according to claim 1, characterized in that: The cross sections at both ends of the dovetail tenon (3) correspond to the opening sizes of the dovetail tenon eye A (1.3) and the dovetail tenon eye B (2.3).

8. The dovetail joint modular steel structure house according to claim 1, characterized in that: The pre-locking buckle comprises an inverted U-shaped support plate (3.2) fixed in the channel (3.10) and provided with inverted U-shaped limit sliding grooves (3.1) on both sides, a pre-locking block (3.4) fixedly connected to the inverted U-shaped support plate (3.2) and matched and locked with the positioning plate B (2) through two groups of symmetrically arranged springs (3.3) located below the inverted U-shaped support plate (3.2), an inverted L-shaped lever (3.5) fixed on the top of the pre-locking block (3.4) and penetrating the inverted U-shaped support plate (3.2), a toggle block (3.6) fixed on the end of the inverted L-shaped lever (3.5) away from the pre-locking block (3.4), and a cover hole plate (3.7) located above the toggle block (3.6).

9. The dovetail joint type modular steel structure house according to claim 8, characterized in that: The pre-locking block (3.4) is provided with a guide block (3.12) which cooperates with the inverted U-shaped limiting sliding groove (3.1) for sliding guidance.

10. The dovetail joint modular steel structure house according to claim 8, characterized in that: The two ends of the channel (3.10) on the dovetail tenon (3) are covered with cover plates (3.8), a window (3.9) for the toggle block (3.6) to penetrate is provided on the cover plate (3.8), and a cover hole plate (3.7) is located on the inner side of the cover plate (3.8) and blocks the window (3.9).

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