A splicable modular square tube

Abstract

The utility model relates to square tube technical field provides a modular square tube of splicing, including first square tube and second square tube, one end of first square tube is installed with second square tube, both ends of first square tube and second square tube all are fixed with connecting structure, the connecting structure includes the first connecting plate fixed in first square tube and second square tube one end respectively, the other end of first square tube and second square tube all are fixed with second connecting plate, the inside installation of through -hole has fixed structure, the utility model discloses being provided with connecting structure, through the equidistance corresponding design of positioning groove and positioning plate, can ensure the accurate positioning when square tube butt -joint, avoid splicing deviation, and through the snap -together connection of clamping strip and card slot, provide certain locking force, thereby can prevent square tube transverse displacement, also can resist certain axial tension, improve the reliability of overall connection.

Description

Technical Field

[0001] This utility model relates to the field of square tube technology, and in particular to a modular square tube that can be spliced ​​together. Background Technology

[0002] A square tube is a hollow rectangular cross-section metal or non-metal tube with a square or rectangular cross-section and four sides of equal or unequal length. It has a hollow structure. A modular square tube that can be spliced ​​is a square cross-section tube with a standardized design. It has the characteristics of rapid assembly, flexible expansion and reusability. It can be spliced ​​in multiple directions through a preset connection structure to form a stable and adjustable frame or structural system.

[0003] To this end, patent CN212534540U discloses a modular steel structure house square tube butt connector, including a connector body. The connector body includes two symmetrically arranged square tube clamps. The two ends of the bottom plates of the two square tube clamps extend to one side to form square channels, and the openings of the two square channels are arranged opposite each other. Two mounting ears are symmetrically arranged on the side walls of the extended part of the square tube clamps, and multiple threaded holes are opened at equal intervals from top to bottom on the side walls of the two mounting ears. Rivet bolts are embedded in the multiple threaded holes on one of the square tube clamps. A reinforcing rib is welded on the side wall in the middle of the two square channels. This utility model relates to the field of building accessories technology. This square tube butt connector can realize the rapid docking of two square tubes and improve the efficiency of house construction by using modular assembly production.

[0004] When the square tubes of the modular steel structure house mentioned above are spliced ​​together during use, the square tubes are prone to lateral displacement or angular deviation, resulting in insufficient splicing accuracy and affecting the verticality and stability of the overall structure. Utility Model Content

[0005] The purpose of this invention is to provide a modular square tube that can be spliced ​​together, in order to solve the defect of existing steel structure modular house square tube connecting parts that are not easy to position.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a modular square tube that can be spliced, comprising a first square tube and a second square tube;

[0007] A second square tube is installed at one end of the first square tube. Both ends of the first and second square tubes are fixed with a connecting structure. The connecting structure includes a first connecting plate fixed to one end of the first and second square tubes respectively. A second connecting plate is fixed to the other end of the first and second square tubes. A positioning groove is provided at the top of the first connecting plate, and a slot is provided at the bottom of the positioning groove. A positioning plate is fixed at the top of the second connecting plate, and a locking strip is fixed at the top of the positioning plate. A sealing strip is fixed to the inner side of the top of the first connecting plate, and a sealing groove is provided to the inner side of the top of the second connecting plate. Through holes are provided at the inner edges of the first and second connecting plates.

[0008] A fixing structure is installed inside the through hole.

[0009] Preferably, the positioning grooves are evenly spaced at the top of the first connecting plate, and the length of the slot is less than the length of the positioning groove.

[0010] With the above structure, the positioning slots correspond one-to-one with the positioning plates during use. During assembly, the positioning plates can be quickly inserted along the axial direction of the positioning slots, and the geometric constraints of the slots are used to achieve the initial positioning of the square tubes and avoid assembly deviations.

[0011] Preferably, the positioning plates are evenly spaced at the top of the second connecting plate, the positioning plates correspond one-to-one with the positioning grooves, the two sides of the locking strip are arc-shaped, and the locking strip and the first connecting plate form a locking structure through the locking groove.

[0012] The above structure, through the interlocking structure formed by the clip and the slot, can effectively prevent the axial separation and torsion of the square tube during use, ensuring structural stability.

[0013] Preferably, the sealing strip is fitted into the sealing groove, and the first connecting plate and the second connecting plate are connected in a sealed manner through the sealing strip and the sealing groove.

[0014] With the above structure, after the sealing strip is embedded in the sealing groove during use, it fills the gap between the connecting plates by squeezing and deforming. The sealing strip is continuously distributed along the edge of the connecting plate, which can achieve full circumference sealing and prevent the medium from leaking from any direction at the joint.

[0015] Preferably, the fixing structure includes a bolt installed inside the through hole, a nut installed on the outside of the bolt at the bottom end of the first connecting plate, a first fixing shell installed at the top end of the second connecting plate, a second fixing shell installed at the bottom end of the first connecting plate, a sealing cavity provided inside both the first fixing shell and the second fixing shell, a locking rod fixed at the bottom end of the first fixing shell, and a locking hole provided at the top end of the second fixing shell.

[0016] Preferably, the nut and the bolt are threaded together, the first fixing shell is evenly distributed at the edge of the top of the second connecting plate, and the second fixing shell is evenly distributed at the edge of the bottom of the first connecting plate, with the first fixing shell and the second fixing shell corresponding one-to-one.

[0017] With the above structure, a stable axial preload can be provided through the threaded connection of nuts and bolts during use, which tightly presses the first connecting plate and the second connecting plate together, thereby ensuring a rigid connection at the joint of the square tube.

[0018] Preferably, the locking rods are evenly spaced at the bottom end of the first fixed shell, and the locking holes are evenly spaced at the top end of the second fixed shell, with the locking rods and the second fixed shell forming a locking structure through the locking holes.

[0019] With the above structure, when in use, the locking mechanism is formed by inserting the locking rod into the locking hole, which can limit the relative displacement between the first and second fixed shells. At the same time, it can also prevent the bolts and nuts from loosening due to vibration, effectively avoiding connection failure caused by long-term vibration, thereby further strengthening the tightness of the connection.

[0020] The modular square tube that can be spliced ​​according to this utility model has the following advantages:

[0021] By incorporating a connecting structure and employing a design that ensures equal spacing between the positioning groove and the positioning plate, precise positioning during square tube assembly can be guaranteed, preventing splicing deviations. Furthermore, the interlocking connection formed by the locking strip and the locking groove provides a certain locking force, thereby preventing lateral displacement of the square tube and resisting a certain axial tensile force, thus improving the overall reliability of the connection.

[0022] By incorporating a fixed structure, the bolts and nuts provide a fastening force through their threaded connection, and the first and second fixed housings engage with each other via locking rods and locking holes. This further enhances the torsional and tensile strength of the connection. Simultaneously, the sealing cavity seals the bolts and nuts, isolating them from external moisture and corrosive gases, thus preventing corrosion of the connecting parts. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0025] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a three-dimensional structural diagram of the second square tube of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the first square tube of this utility model;

[0028] Figure 6 This is a three-dimensional exploded view of the fixed structure of this utility model.

[0029] The reference numerals in the figure are as follows: 1. First square tube; 2. Second square tube; 3. Connecting structure; 301. First connecting plate; 302. Second connecting plate; 303. Positioning groove; 304. Slot; 305. Positioning plate; 306. Slot strip; 307. Sealing strip; 308. Sealing groove; 309. Through hole; 4. Fixing structure; 401. Bolt; 402. Nut; 403. First fixing shell; 404. Second fixing shell; 405. Sealing cavity; 406. Locking rod; 407. Locking hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-5 The present invention provides a modular square tube that can be spliced, comprising a first square tube 1 and a second square tube 2.

[0032] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, a second square tube 2 is installed at one end of a first square tube 1. A connecting structure 3 is fixed to both ends of the first square tube 1 and the second square tube 2. The connecting structure 3 includes a first connecting plate 301 fixed to one end of the first square tube 1 and the second square tube 2, and a second connecting plate 302 fixed to the other end of both the first square tube 1 and the second square tube 2. A positioning groove 303 is provided at the top of the first connecting plate 301, and a slot 304 is provided at the bottom of the positioning groove 303. A positioning plate 305 is fixed to the top of the second connecting plate 302, and a retaining strip 306 is fixed to the top of the positioning plate 305. A sealing strip 307 is fixed to the inner side of the top of the first connecting plate 301, and a sealing groove is provided to the inner side of the top of the second connecting plate 302. 308. Through holes 309 are provided at the inner edge positions of the first connecting plate 301 and the second connecting plate 302. Positioning grooves 303 are evenly distributed at the top of the first connecting plate 301. The length of the slot 304 is less than the length of the positioning groove 303. Positioning plates 305 are evenly distributed at the top of the second connecting plate 302. The positioning plates 305 correspond one-to-one with the positioning grooves 303. The two sides of the locking strip 306 are arc-shaped. The locking strip 306 and the first connecting plate 301 form a locking structure through the slot 304. The sealing strip 307 is fitted into the sealing groove 308. The first connecting plate 301 and the second connecting plate 302 form a sealed connection through the sealing strip 307 and the sealing groove 308.

[0033] During assembly, the positioning plate 305 is inserted into the positioning groove 303 to initially position the square tubes for connection. Once the positioning plate 305 is inserted, the retaining strip 306 slides into the retaining groove 304, forming an engaging structure that provides locking force and prevents lateral displacement of the square tubes. Simultaneously, the sealing strip 307 is embedded in the sealing groove 308 to form a sealed connection, thus preventing leakage at the square tube joint. This allows for rapid assembly and disassembly of the square tubes, facilitating transportation, installation, and maintenance.

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a fixing structure 4 is installed inside the through hole 309. The fixing structure 4 includes a bolt 401 installed inside the through hole 309. A nut 402 is installed on the outside of the bolt 401 at the bottom end of the first connecting plate 301. A first fixing shell 403 is installed at the top end of the second connecting plate 302, and a second fixing shell 404 is installed at the bottom end of the first connecting plate 301. Both the first fixing shell 403 and the second fixing shell 404 have a sealing cavity 405 inside. A locking rod 406 is fixed at the bottom end of the first fixing shell 403, and a locking rod 406 is provided at the top end of the second fixing shell 404. Hole 407, nut 402 and bolt 401 are threadedly connected. The first fixing shell 403 is evenly distributed at the edge of the top of the second connecting plate 302. The second fixing shell 404 is evenly distributed at the edge of the bottom of the first connecting plate 301. The first fixing shell 403 and the second fixing shell 404 correspond one to one. The locking rod 406 is evenly distributed at the bottom of the first fixing shell 403. The locking hole 407 is evenly distributed at the top of the second fixing shell 404. The locking rod 406 and the second fixing shell 404 form a locking structure through the locking hole 407.

[0035] Bolt 401 passes through through hole 309 and is threadedly connected to nut 402, tightly fixing the first connecting plate 301 and the second connecting plate 302. The threaded connection provides reliable fastening force, ensuring the stability of the assembled square tube structure. The first fixing shell 403 and the second fixing shell 404 are aligned and spliced, so that the locking rod 406 at the bottom of the first fixing shell 403 is inserted into the locking hole 407 at the top of the second fixing shell 404, forming a locking structure, which further enhances the tensile and torsional resistance of the connection. At the same time, the sealing cavity 405 inside the first fixing shell 403 and the second fixing shell 404 seals the bolt 401, preventing the bolt 401 and nut 402 from corroding and becoming loose, ensuring the sealing and structural stability of the connection.

[0036] Although the present invention 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 substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A modular square tube that can be spliced ​​together, comprising a first square tube (1) and a second square tube (2); Its features are: A second square tube (2) is installed at one end of the first square tube (1). Both ends of the first square tube (1) and the second square tube (2) are fixed with a connecting structure (3). The connecting structure (3) includes a first connecting plate (301) fixed to one end of the first square tube (1) and the second square tube (2), respectively. The other ends of the first square tube (1) and the second square tube (2) are fixed with a second connecting plate (302). A positioning groove (303) is provided at the top of the first connecting plate (301). The bottom end of the first connecting plate (301) is provided with a slot (304), the top end of the second connecting plate (302) is fixed with a positioning plate (305), the top end of the positioning plate (305) is fixed with a clip (306), the inner side of the top end of the first connecting plate (301) is fixed with a sealing strip (307), the inner side of the top end of the second connecting plate (302) is provided with a sealing groove (308), and through holes (309) are provided at the inner edge positions of the first connecting plate (301) and the second connecting plate (302). A fixing structure (4) is installed inside the through hole (309).

2. The modular square tube that can be spliced ​​according to claim 1, characterized in that: The positioning grooves (303) are evenly distributed at the top of the first connecting plate (301), and the length of the slot (304) is less than the length of the positioning grooves (303).

3. The modular square tube that can be spliced ​​according to claim 1, characterized in that: The positioning plates (305) are evenly spaced at the top of the second connecting plate (302). The positioning plates (305) correspond one-to-one with the positioning grooves (303). The two sides of the locking strip (306) are arc-shaped. The locking strip (306) and the first connecting plate (301) form a locking structure through the locking groove (304).

4. The modular square tube that can be spliced ​​according to claim 1, characterized in that: The sealing strip (307) is fitted into the sealing groove (308), and the first connecting plate (301) and the second connecting plate (302) are connected in a sealed manner through the sealing strip (307) and the sealing groove (308).

5. A modular square tube that can be spliced ​​according to claim 1, characterized in that: The fixing structure (4) includes a bolt (401) installed inside the through hole (309). A nut (402) is installed on the outside of the bolt (401) at the bottom of the first connecting plate (301). A first fixing shell (403) is installed at the top of the second connecting plate (302). A second fixing shell (404) is installed at the bottom of the first connecting plate (301). Both the first fixing shell (403) and the second fixing shell (404) have a sealing cavity (405) inside. A locking rod (406) is fixed at the bottom of the first fixing shell (403). A locking hole (407) is provided at the top of the second fixing shell (404).

6. A modular square tube that can be spliced ​​according to claim 5, characterized in that: The nut (402) and the bolt (401) are threaded together. The first fixing shell (403) is evenly distributed at the edge of the top of the second connecting plate (302). The second fixing shell (404) is evenly distributed at the edge of the bottom of the first connecting plate (301). The first fixing shell (403) and the second fixing shell (404) correspond one-to-one.

7. A modular square tube that can be spliced ​​according to claim 5, characterized in that: The locking rods (406) are evenly distributed at the bottom end of the first fixed shell (403), and the locking holes (407) are evenly distributed at the top end of the second fixed shell (404). The locking rods (406) and the second fixed shell (404) form a locking structure through the locking holes (407).

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