Dovetail joint type modular steel structure house

Abstract

The present invention relates to the technical field of prefabricated steel structure buildings. Disclosed is a dovetail joint type modular steel structure house, comprising modular houses, side plates A, side plates B, a positioning plate A, a positioning plate B, dovetail joints and sealing plates, wherein the side plates A and the side plates B are welded to two adjacent modular houses; the positioning plate A and the positioning plate B are located in a chamber enclosed by the modular houses, the two side plates A and the two side plates B; dovetail sockets A are arranged in the positioning plate A, and dovetail sockets B are arranged in the positioning plate B; the dovetail joints are inserted into positioning ports formed by connecting the dovetail sockets A to the dovetail sockets B; the dovetail joints are fastened on the positioning plate B by means of pre-locking fasteners; and the sealing plates are threadedly connected to 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 joints. On the basis of conventional mortise and tenon joint structures, by means of the precisely designed dovetail joints and corresponding sockets, the present invention realizes rapid and accurate connection between the modular houses.

Description

A dovetail type modular steel structure house TECHNICAL FIELD

[0001] The present application belongs to the technical field of steel structure prefabricated building, and particularly relates to a dovetail type modular steel structure house. BACKGROUND

[0002] Modular building refers to a light steel structure building module unit which is a prefabricated module of one or more building units, has a use function, and is completed by on-site assembly after being prefabricated in a factory. The modular building is a low or multi-storey building formed by assembly connection. Each prefabricated module can be a room unit with complete decoration, heating, sewerage, and lighting, etc. The modular unit can be used to form a complete room, or a part of a large room, or used to make some special service units.

[0003] The steel structure modular method is widely used in single and multi-storey intelligent houses, travel and tourism cabins, and other buildings. As can be known from the characteristics of the modular building, each module unit is a complete structural system composed of a top beam, a bottom beam, and a column. Adjacent modules transfer loads and coordinate deformations through corresponding position connection nodes, so that multiple units form a whole structure with a certain scale.

[0004] After the above installation is completed to form a separate cabin, it is often necessary to assemble a multi-cabin structure according to actual requirements due to the demand for use function, so as to adapt to different scenes. 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 needs to be drilled and fastened with bolts on site, which takes a long time, especially in large modular building projects, which significantly prolongs the construction period. Bolt connection requires accurate measurement and drilling, and has high skill requirements for construction personnel, and is prone to connection instability due to construction errors. Bolt connection may leave holes on the cabin, which may affect the waterproof and thermal insulation performance of the cabin, and long-term use may also cause cabin structure fatigue. The disassembly process of bolt connection is relatively complicated, and the bolts need to be loosened and tightened one by one, which increases the maintenance cost and time for the modular house which is frequently disassembled.

[0005] In view of this, a dovetail type modular steel structure house is provided to solve the above problems. TECHNICAL PROBLEM

[0006] The present application aims to solve the technical problem of long construction period, complex process, and easy damage to the cabin of the modular house through bolt connection in the prior art. TECHNICAL SOLUTION

[0007] To achieve the above purpose, the present application provides the following technical scheme:

[0008] A dovetail type modular steel structure house comprises a modular house, side plates A and B, positioning plates A and B, dovetail joints, and a sealing plate;

[0009] The side plates A and B are respectively welded at the butt joints of the two ends of two adjacent modular houses in the left-right direction or in the up-down direction.

[0010] The positioning plates A and B are located in the cavity formed by the two adjacent modular houses and the two side plates A and B after being butted together. A plurality of dovetail mortises A are arranged at equal intervals on the positioning plate A, and a plurality of dovetail mortises B corresponding to the dovetail mortises A are arranged at equal intervals on the positioning plate B.

[0011] The dovetail joint is inserted into the positioning opening formed by the butt joint of the dovetail mortises A and the dovetail mortises B. Pre-locking buckles are arranged at the two ends of the channel inside the dovetail joint, and the dovetail joint is buckled on the positioning plate B through the pre-locking buckles.

[0012] The sealing plate is threadedly butted at the front and rear ends of the positioning plates A and B and is used for sealing the positioning plates A and B and the dovetail joint.

[0013] The dovetail type modular steel structure house is mainly based on the traditional mortise and tenon structure, and realizes the rapid and accurate connection between the modular houses through the precisely designed dovetail joint and the corresponding mortises. The modular house is composed of a plurality of prefabricated modular units, each unit has a complete structural system, including roof beams, floor beams, and columns. The side plates A and B are welded at the butt joints of the adjacent modular houses to form the basis of the connection. The positioning plates A and B are located inside the cavity formed by the adjacent modular houses and the side plates A and B after being butted together. The positioning plate A is provided with the dovetail mortises A, and the positioning plate B is provided with the corresponding dovetail mortises B. The dovetail joint is inserted into the positioning opening formed by the butt joint of the two mortises, realizing accurate positioning and connection. Pre-locking buckles are arranged at the two ends of the channel inside the dovetail joint, and the pre-locking buckles can be locked on the positioning plate B through the mechanical structure after the dovetail joint is inserted into place, ensuring the stability of the connection. The sealing plate is threadedly butted at the front and rear ends of the positioning plates A and B, sealing the positioning plates and the dovetail joint, and completing the final fixation and sealing.

[0014] As a preferred embodiment, a longitudinal side limiting groove is arranged at the center 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 inserted into the side limiting groove. This avoids positional deviation during installation and improves the assembly precision.

[0015] As preferred, bolt holes A are formed on the side plate A, bolt holes B are formed on the side plate B, and symmetrical connecting threaded holes A are formed on the left and right sides of the positioning plate A and the positioning plate B. The side plate A is fixed on the positioning plate A and the positioning plate B by bolts penetrating the bolt holes A and the connecting threaded holes A, and the side plate B is fixed on the positioning plate A and the positioning plate B by bolts penetrating the bolt holes B and the connecting threaded holes A. The design of the bolt holes A, the bolt holes B and the connecting threaded holes A can realize the stable connection of the side plate A, the side plate B, the positioning plate A and the positioning plate B.

[0016] As preferred, connecting threaded holes B are formed on the front and back sides of the positioning plate A and the positioning plate B, bolt holes C are formed on the sealing plate, and the sealing plate is fixed on the positioning plate A and the positioning plate B by bolts penetrating the bolt holes C and the connecting threaded holes B. The bolts of the sealing plate penetrating the bolt holes C and the connecting threaded holes B can effectively seal the gap between the positioning plate A and the positioning plate B, improve the overall sealing performance, and help prevent water and heat preservation. The fixation of the sealing plate increases the strength of the whole structure and prevents structural problems caused by loose connections.

[0017] As preferred, a positioning groove is formed at the bottom of the left end of the positioning plate A, and a positioning block is formed at the top of the left end of the positioning plate B and inserted into the positioning groove. The design of the positioning groove and the positioning block ensures the accurate alignment between the positioning plate A and the positioning plate B, avoiding misalignment problems during installation.

[0018] As preferred, a limiting groove is formed at the bottom of the dovetail mortise B of the positioning plate B, and a limiting block is formed at the bottom of the dovetail and inserted into the limiting groove. The cooperation of the limiting groove and the limiting block can ensure the accurate alignment of the dovetail when inserted into the dovetail mortise B, avoiding installation problems caused by inaccurate alignment.

[0019] As preferred, the cross-sectional sizes of the two ends of the dovetail are different and correspond to the sizes of the openings of the dovetail mortise A and the dovetail mortise B.

[0020] As preferred, the pre-locking buckle includes an inverted U-shaped support plate fixed in the channel and having inverted U-shaped limiting sliding grooves formed on both sides, a pre-locking block located below the inverted U-shaped support plate and fixedly connected with the inverted U-shaped support plate and cooperating with the positioning plate B for locking, an inverted L-shaped lever fixed on the top of the pre-locking block and penetrating the inverted U-shaped support plate, a lever block fixed on the end of the inverted L-shaped lever away from the pre-locking block, and a cover plate located above the lever block. The pre-locking buckle allows quick pre-fixing during installation, ensuring the preliminary stability of the installation. The structure design of the pre-locking buckle allows the installer to easily lock and unlock the dovetail, facilitating installation and disassembly.

[0021] Preferably, the pre-locking block is provided with a guide block that slides and guides in the inverted U-shaped limiting sliding groove.

[0022] Preferably, the two ends of the dovetail channel are capped with a cover plate, and the cover plate is provided with a window through which the driving block is inserted. The cover hole plate is located on the inner side of the cover plate and blocks the window. The cover plate and the cover hole plate can protect the pre-locking buckle and other structures inside the dovetail, prevent dust and other debris from entering, and prolong the service life of the assembly. Advantages

[0023] The dovetail type modular steel structure house is characterized in that the side plates A and B are welded on the modular house, the side plates A and B have protrusions, the positioning plates A and B have grooves, the positioning plates A and B are fixed on the upper and lower or left and right surfaces of the modular house through insertion, and the positioning plates A and B are accurately positioned with the side plates A and B. The side plates A and B and the positioning plates A and B are provided with reserved holes, and rivets are driven in for fixation after alignment. The positioning plates 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 and correspond to the sizes of the openings in the positioning plates A and B, and the dovetail is inserted from the sides of the positioning plates A and B with spacing. The dovetail is provided with a limiting block to accurately position the dovetail with the positioning plates A and B. The dovetail head is provided with a pre-locking buckle structure to achieve preliminary fixation after insertion, ensuring the safety of structure installation. The side plates A and B are consistent with the building side length of the modular house, and the lengths of the positioning plates A and B and the dovetail are slightly smaller than those of the side plates A and B. After the positioning plates A and B and the dovetail are installed, the end plates are installed to fix the positioning plates A and B and the dovetail.

[0024] The design of the dovetail and the positioning plate allows for quick installation and disassembly, and the pre-locking buckle can achieve preliminary fixation, thereby greatly reducing the installation period and improving the construction efficiency. This design also ensures the free combination of the modular building up and down and left and right, increasing the flexibility of the building. The variable cross section design of the dovetail and the mortise makes seamless installation and building decoration integration possible.

[0025] When the modular house does not need to be assembled, the upper left and right side plates can be used as closure plates to form a ventilated roof, which helps to reduce solar radiation heat and improve indoor comfort. The lower left and right side plates can be used as column feet to effectively isolate ground moisture and protect the building structure. The middle end plate can be combined with LED light strips and photovoltaic panels, which not only looks beautiful but also provides lighting and power generation functions, achieving energy saving and environmental protection.

[0026] Through the design of accurate positioning and fixation, the stability of the overall structure is ensured. The installation process has no effect on the original structure and waterproof and thermal 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 joint improve the construction safety. In summary, the dovetail mortise type modular steel structure house technology provides an efficient, stable and functional solution for the field of modular construction. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 is a schematic diagram of the structure of the sealing plate installation of the present application;

[0028] Fig. 2 is a schematic diagram of the structure of the upper and lower combination of the modular house of the present application;

[0029] Fig. 3 is a schematic diagram of the structure of the upper and lower and left and right combination of the modular house of the present application;

[0030] Fig. 4 is a schematic diagram of the structure of the installation of side plate A and side plate B of the present application;

[0031] Fig. 5 is a schematic diagram of the structure of the positioning plate A, positioning plate B, dovetail, sealing plate, side plate A, and side plate B of the present application;

[0032] Fig. 6 is a structural diagram of the positioning plate A and the positioning plate B of the present application;

[0033] Fig. 7 is a schematic diagram of the structure of the dovetail of the present application;

[0034] Fig. 8 is a schematic diagram of the structure of the dovetail after the upper cover plate is removed;

[0035] Fig. 9 is a schematic diagram of the structure of the inverted U-shaped support plate and the pre-locking block of the present application;

[0036] Fig. 10 is a schematic diagram of the structure of the side plate A of the present application;

[0037] Fig. 11 is a schematic diagram of the structure of the side plate B of the present application;

[0038] Fig. 12 is a schematic diagram of the structure of the sealing plate of the present application.

[0039] In the drawings:

[0040] 100, modular house; 1, positioning plate A; 2, positioning plate B; 3, dovetail; 4, sealing plate; 5, side plate A; 6, side plate B;

[0041] 1.1, side limiting groove; 1.2, positioning groove; 1.3, dovetail eye A; 1.4, connecting threaded hole B;

[0042] 2.1, positioning block; 2.2, connecting threaded hole A; 2.3, dovetail eye B; 2.4, limiting groove;

[0043] 3.1, inverted U-shaped limiting sliding groove; 3.2, inverted U-shaped supporting plate; 3.3, spring; 3.4, pre-locking block; 3.5, inverted L-shaped pulling rod; 3.6, pulling block; 3.7, cover hole plate; 3.8, cover plate; 3.9, window; 3.10, channel; 3.11, limiting block; 3.12, guide block;

[0044] 4.1, bolt hole C;

[0045] 5.1, protrusion A; 5.2, bolt hole A;

[0046] 6.1, bolt hole B; 6.2, protrusion B. Embodiments of the application

[0047] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0048] The application will be described in further detail below with reference to Figs. 1-12,

[0049] The application discloses a dovetail type modular steel structure house, comprising a modular house 100;

[0050] The abutting positions of two adjacent modular houses 100 or two adjacent modular houses 100 are provided with side plates A5 and side plates B6 welded at both ends of the modular house 100, and the chamber surrounded by the two adjacent modular houses 100 and the two side plates A5 and the two side plates B6 is provided with abutting positioning plates A1 and positioning plates B2; a plurality of dovetail mortises A1.3 are arranged at equal distances on the positioning plate A1, and a plurality of dovetail mortises B2.3 abutting with the dovetail mortises A1.3 are arranged at equal distances on the positioning plate B2, a dovetail 3 is inserted into the positioning opening formed by the abutment of the dovetail mortises A1.3 and the dovetail mortises B2.3, and the front and rear ends of the positioning plate A1 and the positioning plate B2 are threadedly connected with a sealing plate 4 for sealing the positioning plate A1, the positioning plate B2 and the dovetail 3;

[0051] The center positions of the left and right ends of the positioning plate A1 and the positioning plate B2 are respectively provided with a longitudinally arranged side limiting groove, and the protrusions A5.1 on the two side plates A5 and the protrusions B6.2 on the two side plates B6 are inserted into the side limiting groove. The design of the side limiting groove and the protrusions A5.1 and B6.2 ensures that the side plates A5 and B6 can be accurately aligned with the positioning plates A1 and B2, avoiding positional deviation during installation and improving the assembly precision. The cooperation of the side limiting groove and the protrusions enhances the connection stability between the side plates and the positioning plates, reduces the shaking and displacement at the connection, and thus improves the stability of the overall structure. This design simplifies the installation process, making the assembly process more intuitive and convenient.

[0052] The side plate A5 is provided with a bolt hole A5.2, the side plate B6 is provided with a bolt hole B6.1, and the left and right sides of the positioning plate A1 and the positioning plate B2 are respectively provided with a connecting threaded hole A2.2 symmetrically arranged with the bolt hole A5.2 and the bolt hole B6.1. The side plate A5 is fixed to the positioning plate A1 and the positioning plate B2 by a bolt penetrating through the bolt hole A5.2 and the connecting threaded hole A2.2, and the side plate B6 is fixed to the positioning plate A1 and the positioning plate B2 by a bolt penetrating through the bolt hole B6.1 and the connecting threaded hole A2.2.

[0053] The front and rear sides of the positioning plate A1 and the positioning plate B2 are respectively provided with a connecting threaded hole B1.4, and the cover plate 4 is provided with a bolt hole C4.1 symmetrically arranged with the connecting threaded hole B1.4. The cover plate 4 is fixed to the positioning plate A1 and the positioning plate B2 by a bolt penetrating through the bolt hole C4.1 and the connecting threaded hole B1.4.

[0054] The design of the bolt hole A5.2, the bolt hole B6.1 and the connecting threaded hole A2.2 can realize the stable connection of the side plate A5 and the side plate B6 with the positioning plate A1 and the positioning plate B2. The tightening effect of the bolt provides additional connection strength, ensuring the safety of the structure. The bolt connection method is more reliable than other connection methods (such as welding), easy to check and maintain, and reduces the building hazards caused by connection problems. The cover plate 4 is fixed by a bolt penetrating through the threaded hole C and the connecting threaded hole B1.4, which can effectively seal the gap between the positioning plate A1 and the positioning plate B2, improve the overall sealing, and help waterproof and thermal insulation. The fixation of the cover plate 4 increases the strength of the whole structure, preventing structural problems caused by loose connections. The design of the cover plate 4 can also improve the overall appearance of the building, making the connection more neat and beautiful.

[0055] The bottom of the left end of the positioning plate A1 is provided with a positioning groove 1.1 and a side limiting groove 1.2; the top of the left end of the positioning plate B2 is provided with a positioning protrusion 2.1 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 installation. This design makes the installation process simpler and faster, reducing 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.

[0056] The bottom of the dovetail mortise B2.3 of the positioning plate B2 is provided with a limiting groove 2.4; the bottom of the dovetail 3 is provided with a limiting block 3.11 inserted into the limiting groove 2.4. The cooperation of the limiting groove 2.4 and the limiting block 3.11 can ensure the accurate alignment of the dovetail 3 when inserted into the dovetail mortise 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 3 from moving excessively after installation, enhancing the stability of the structure. By limiting the movement range of the dovetail 3, potential safety risks caused by loose parts can be reduced.

[0057] The cross-sectional size of the two ends of the dovetail 3 is different and corresponds to the opening size of the dovetail mortise A1.3 and the dovetail mortise B2.3; the cross-sectional size of the two ends of the dovetail 3 is different and corresponds to the opening size of the dovetail mortise A1.3 and the dovetail mortise B2.3. The design of the dovetail 3 corresponding to the opening size can improve the strength of the connection, making the structure more stable. Due to the size matching between the dovetail 3 and the dovetail mortise 3, it is easier to align during installation, reducing the installation difficulty and time.

[0058] The channel 3.10 inside the dovetail 3 is provided with a pre-locking buckle at both ends, which is used to lock the dovetail 3 on the positioning plate B2. The pre-locking buckle includes a reverse U-shaped support plate 3.2 fixed in the channel 3.10 and provided with a reverse U-shaped limiting sliding groove 3.1 on both sides, a pre-locking block 3.4 located below the reverse U-shaped support plate 3.2 and fixedly connected with the reverse U-shaped support plate 3.2 through two groups of symmetrically arranged springs 3.3, and cooperates with the positioning plate B2 to lock, a reverse L-shaped lever 3.5 fixed on the top of the pre-locking block 3.4 and penetrating through the reverse U-shaped support plate 3.2, a lever block 3.6 fixed on the end of the reverse L-shaped lever 3.5 away from the pre-locking block 3.4, and a cover hole plate 3.7 located above the lever block 3.6. The pre-locking block 3.4 is provided with a guide block 3.12 that cooperates with the reverse U-shaped limiting sliding groove 3.1 to slide and guide. The two ends of the channel 3.10 on the dovetail 3 are covered with a cover plate 3.8, and the cover plate 3.8 is provided with a window 3.9 that cooperates with the lever block 3.6 to penetrate. The cover hole plate 3.7 is located inside the cover plate 3.8 and blocks the window 3.9.

[0059] When the dovetail 3 is locked by the pre-locking buckle, the pre-locking block 3.4 is locked with the positioning plate B2. When the locking is released, the push block 3.6 is pushed upwards, the pre-locking block 3.4 is lifted, the spring 3.3 is compressed, and the pre-locking block 3.4 is locked with the positioning plate B2.

[0060] The pre-locking buckle allows quick pre-fixing during installation, ensuring preliminary stability of the installation. The design of the pre-locking buckle includes inverted U-shaped support plates 3.2, springs 3.3, pre-locking blocks 3.4, etc., which provide installation guidance, making the installation process more intuitive. The structure design of the pre-locking buckle allows the installer to easily lock and unlock the dovetail 3, facilitating installation and disassembly. The pre-locking block 3.4 and the inverted L-shaped push rod 3.5 increase the safety of the connection, preventing accidental falling during installation. The use of the guide block 3.12 with the inverted U-shaped limiting sliding groove 3.1 provides sliding guidance for the pre-locking block 3.4, ensuring that the pre-locking block 3.4 can smoothly and accurately slide into place. The cover plate 3.8 and the cover hole plate 3.7 protect the internal structure of the dovetail 3, preventing dust and other debris from entering, extending the service life of the component. The window 3.9 on the cover plate 3.8 allows the push block 3.6 to easily pass through, making it easier for the installer to operate. The cover hole plate 3.7 blocks the window 3.9, improving the sealing of the dovetail 3 connection, which helps to prevent water and dust.

[0061] The dovetail 3 type modular steel structure intelligent house is mainly based on the traditional mortise and tenon structure, through the precise design of the dovetail 3 and the corresponding mortise, to realize the fast and accurate connection between the modular houses 100. The modular house 100 is composed of multiple prefabricated modular units, each unit has a complete structural system, including roof beams, floor beams and columns. The side plate A5 and the side plate B6 are welded at the interface of adjacent modular houses 100, forming the basis of the connection. The positioning plate A1 and the positioning plate B2 are connected after the positioning plate A1 and the positioning plate B2 are connected, and are located inside the cavity surrounded by the side plate A5 and the side plate B6 of adjacent modular houses 100. 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, realizing accurate positioning and connection. The channel 3.10 on the inside of the dovetail 3 is provided with a pre-locking buckle at both ends, which can be locked on the positioning plate B2 after the dovetail 3 is inserted into place, ensuring the stability of the connection. The cover plate 4 is connected to the front and rear ends of the positioning plates A1 and B through threads, blocking the positioning plate and the dovetail 3, completing the final fixation and sealing.

[0062] The dovetail 3 and mortise joint makes the installation of the modular house 100 quick and easy, and the pre-locking mechanism can quickly achieve preliminary fixation. The precise design of the dovetail 3 and mortise ensures high-precision alignment of the modular house 100, improving the overall quality and performance of the building. Through pre-locking and the fixation of the sealing plate 4, the connection has high stability and can withstand certain external forces and environmental pressures. The dovetail 3 type connection structure is easy to disassemble and reinstall, facilitating future maintenance and upgrades. This connection method is suitable for various modular steel structure buildings and can be flexibly applied to different building scenarios and needs. The sealing and neat appearance of the dovetail 3 type connection structure provide a good visual effect for the building. Industrial applicability

[0063] Compared with the traditional installation method, which has high machining precision, high installation difficulty, many components, low efficiency, and other disadvantages, the mortise and tenon joint design is convenient to install and disassemble, can achieve pre-fixing, 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 waterproofing of the modular house; The dovetail has a variable cross-section design at both ends, and the mortise is fixed firmly by being punched into the mortise on both sides, without the need to reserve installation space, achieving building decoration integration and seamless installation. When the modular house is not assembled, the upper and lower side plates can be closed to form a ventilated roof, reducing solar radiation heat; the lower and upper side plates can be used as column feet to isolate ground moisture; the middle sealing plate can be combined with LED light strips and photovoltaic panels.

[0064] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application should be included in the protection scope of the present application.

Claims

1. A dovetail modular steel structure house, characterized in that, The utility model relates to a modular house positioning system, comprising: Side plate A (5) and side plate B (6), side plate A (5) and side plate B (6) are welded in the butt joint of two modular houses (100) adjacent left and right or adjacent top and bottom respectively both ends, Positioning plate A (1) and positioning plate B (2), positioning plate A (1) and positioning plate B (2) are located in the cavity surrounded by two modular houses (100) and two side plate A (5) and two side plate B (6) after butt joint, a plurality of dovetail mortises A (1.3) are arranged on positioning plate A (1) at equal distance, dovetail mortises B (2.3) that butt joint with dovetail mortises A (1.3) are opened on positioning plate B (2) at equal distance, Dovetail (3) is inserted into the positioning mouth formed by the butt joint of dovetail mortises A (1.3) and dovetail mortises B (2.3), the channel (3.10) of the inside of dovetail (3) is equipped with pre-locking buckle at both ends, and dovetail (3) is locked on positioning plate B (2) by pre-locking buckle, Cover plate (4) is screwed in the front and back of positioning plate A (1) and positioning plate B (2) and is used for plugging positioning plate A (1), positioning plate B (2) and dovetail (3).

2. A dovetail modular steel structure house according to claim 1, characterized in that: The center position of the left and right ends of positioning plate A (1) and positioning plate B (2) is provided with the vertically arranged side limiting groove (1.1), the protrusion A (5.1) on the two side plate A (5) and the protrusion B (6.2) on the two side plate B (6) are inserted into the side limiting groove (1.1) in cooperation.

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

4. A dovetail modular steel structure house according to claim 1, characterized in that: The front and back sides of positioning plate A (1) and positioning plate B (2) are respectively provided with the connecting thread hole B (1.4), the cover plate (4) is provided with the bolt hole C (4.1) that is symmetrically arranged with the connecting thread hole B (1.4), and the cover plate (4) is fixed on positioning plate A (1) and positioning plate B (2) by the bolt that is screwed through the bolt hole C (4.1) and the connecting thread hole B (1.4).

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

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

7. A dovetail modular steel structure house according to claim 1, characterized in that: The cross section of both ends of the dovetail (3) corresponds to the size of the opening of the dovetail mortise A (1.3) and the dovetail mortise B (2.3).

8. A dovetail modular steel structure house according to claim 1, characterized in that: The pre-locking buckle comprises an inverted U-shaped supporting 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 supporting plate (3.2) and connected with the inverted U-shaped supporting plate (3.2) through two groups of symmetrically arranged springs (3.3) and matched with the positioning plate B (2) for locking, an inverted L-shaped pushing rod (3.5) fixed on the top of the pre-locking block (3.4) and penetrating through the inverted U-shaped supporting plate (3.2), a pushing block (3.6) fixed on the end of the inverted L-shaped pushing rod (3.5) away from the pre-locking block (3.4), and a cover hole plate (3.7) located above the pushing block (3.6).

9. A dovetail modular steel building structure according to claim 8, characterized in that: The pre-locking block (3.4) is provided with a guide block (3.12) matched with the inverted U-shaped limiting sliding groove (3.1) for sliding and guiding.

10. A dovetail modular steel structure house according to claim 8, characterized in that: The both ends of the channel (3.10) on the dovetail (3) are covered with cover plates (3.8), the cover plates (3.8) are provided with windows (3.9) matched with the penetrating pushing block (3.6), and the 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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