Metal profile composite structure and processing technology

Abstract

The invention discloses a metal profile composite structure and a processing technology, the metal profile composite structure comprises a transverse plate and a vertical plate, the metal profile composite structure further comprises a connecting assembly, the connecting assembly comprises a connecting piece and a locking piece, the connecting piece is provided with a first end and a second end which are arranged in the axial direction of the connecting piece, and the outer side face of the first end of the connecting piece is provided with a locking groove; the size of the end, away from the axis of the connecting piece, of the locking groove is gradually decreased from the end, facing the axis of the connecting piece, of the locking groove. The second end of the connecting piece is arranged on the surface of one of the transverse plate and the vertical plate, the first end of the connecting piece extends into the other one of the transverse plate and the vertical plate, and the locking piece penetrates through the other surface of the other one of the transverse plate and the vertical plate to be clamped in the locking groove.

Description

Technical Field

[0001] This invention relates to the field of metal profile technology, and in particular to a metal profile assembly structure and processing technology. Background Technology

[0002] Aluminum-made custom-made cabinets for the whole house, including kitchen cabinets, balcony cabinets, laundry room cabinets, bathroom cabinets, wardrobes, and bookcases, all involve the connection method of vertical and horizontal panels in their structural composition. Taking a common wardrobe as an example, the cabinet body mainly consists of vertical panels, hinged doors, horizontal panels (partitions), a top, and a base. The horizontal panels are horizontally positioned and connected to the vertical panels on both sides. Traditional furniture cabinets are generally made of wood products such as MDF, particleboard, or solid wood. However, wood products commonly have the problem of excessive formaldehyde levels, which undoubtedly poses a great harm to people living indoors for a long time and seriously affects their health. Furthermore, wooden furniture cabinets have disadvantages such as poor water and fire resistance, susceptibility to insects and pests, and non-recyclability, which contradicts the safe, environmentally friendly, and green living environment advocated in today's era.

[0003] According to existing technology, there is a structure for directly connecting the horizontal and vertical frames of an all-aluminum furniture cabinet, with publication number CN202536723U. It includes a vertical frame and a horizontal frame, which are connected by a connector. The vertical and horizontal frames are made of the same profile, which includes a cavity. A slot is provided on the outer right side of the cavity. A locking nut is fixedly installed on the side wall of the cavity of the horizontal frame. The connector includes a base, a connecting part is provided on the left side of the base, and a locking head is provided on the connecting part. A screw hole is provided on the top of the base. The base of the connector is located in the cavity of the horizontal frame and is fixedly connected to the horizontal frame with screws. The locking head of the connector is installed in the cavity of the vertical frame and engages with the side wall of the cavity of the vertical frame. However, the connector's clip is snapped into the vertical frame, making the connection between the vertical and horizontal frames unstable. The vertical and horizontal frames wobble against each other, resulting in an unreliable connection and affecting the lifespan of both the vertical and horizontal frames. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a metal profile assembly structure and processing technology that uses reliable connections to achieve a long service life.

[0005] To achieve the above objectives, the technical solution of the present invention is: a metal profile assembly structure, comprising a horizontal plate and a vertical plate, and further comprising:

[0006] A connecting assembly, comprising a connector and a locking member, wherein the connector has a first end and a second end disposed along the axial direction of the connector, and a locking groove is provided on the outer surface of the first end of the connector, wherein the dimension of the locking groove at the end away from the axis of the connector decreases from the dimension of the locking groove at the end of the locking groove facing the axis of the connector.

[0007] The second end of the connector is located on the surface of one of the horizontal and vertical plates, the first end of the connector extends into the other, and the locking member passes through the other surface and is engaged in the locking groove.

[0008] With the above structure, the present invention has the following advantages compared with the prior art: a connecting component is provided, which includes a connector and a locking component. The connector is used to fix the horizontal plate and the vertical plate together. The first end of the connector is provided with a locking groove, and the size of the locking groove decreases from the end away from the axis of the connector to the end facing the axis of the connector. The locking component is locked in the locking groove. The deeper the locking component is pressed, the tighter the locking component locks the connector. In this way, the connection between the horizontal plate and the vertical plate is reliable, the horizontal plate and the vertical plate are not easy to shake, and the service life is long.

[0009] Preferably, the locking groove is an annular groove provided along the outer circumference of the connector, so that the locking member can be locked in the locking groove without rotating the connector, making installation convenient.

[0010] Preferably, the length of the locking groove along the axial direction of the connector decreases from the end away from the axis of the connector to the end facing the axis of the connector, which facilitates the insertion of the locking member into the locking groove.

[0011] Preferably, the outer side of the locking member is provided with external threads, which facilitates fixing the locking member to the horizontal plate and / or vertical plate.

[0012] Preferably, the horizontal plate is provided with: a positioning seat with a positioning groove, which is disposed in the horizontal plate, the positioning groove is disposed along the axial direction of the horizontal plate, at least one end of the positioning groove passes through the end of the horizontal plate along the axial direction of the horizontal plate, and the first end of the connector extends through the end of the horizontal plate into the positioning groove;

[0013] A locking hole with internal threads is provided on the surface of the horizontal plate. The locking hole connects the positioning groove and the outside of the horizontal plate. The locking member passes through the locking hole and abuts against the locking groove, which facilitates the insertion of the first end of the connector into the horizontal plate and also facilitates the locking member to be locked in the locking groove through the locking hole.

[0014] Preferably, the horizontal plate is hollow in the middle, and the positioning seats are fixed on the top surface and the inner bottom surface of the horizontal plate respectively, which reduces the weight of the horizontal plate and reduces the amount of material used.

[0015] Preferably, the surface of the vertical plate is provided with a connecting hole, and the second end of the connector is fixed in the connecting hole, so as to facilitate fixing the connector to the vertical plate.

[0016] Preferably, the vertical plate and the horizontal plate have the same structure; the connecting hole and the locking hole are interchangeable, and the vertical plate and the horizontal plate are interchangeable, making installation convenient.

[0017] Preferably, at least one of the vertical and horizontal plates has a light groove on its surface for mounting LED lights, which facilitates the installation of LED lights.

[0018] A processing technique for manufacturing the aforementioned metal profile assembly structure includes the following steps:

[0019] S1. Sheet metal cutting: Cutting metal sheets into horizontal and vertical pieces of corresponding dimensions;

[0020] S2. Processing and forming: The horizontal plate and the vertical plate are formed into horizontal plates and vertical plates respectively by pressure forming process;

[0021] S3: Finishing: Polish the surfaces of the horizontal and vertical plates separately;

[0022] S4: Surface treatment: Rust prevention treatment is applied to the surfaces of the horizontal and vertical plates;

[0023] S5: Assembly: Use connecting components to fix the horizontal and vertical plates together. Attached Figure Description

[0024] Figure 1 This is a perspective view of a metal profile composite structure connection component according to the present invention.

[0025] Figure 2 This is a front view of a metal profile composite structure connector according to the present invention.

[0026] Figure 3 This is a front view of a metal profile combined structure locking component according to the present invention.

[0027] Figure 4 This is a front sectional view of a horizontal plate of a metal profile composite structure according to the present invention.

[0028] Figure 5 This is a three-dimensional sectional view of the horizontal plate and connecting components of a metal profile composite structure according to the present invention.

[0029] Figure 6 This is a top sectional view of a vertical plate of a metal profile composite structure according to the present invention.

[0030] Figure 7 This is a top sectional view of the vertical plate and connector of a metal profile composite structure according to the present invention.

[0031] Figure 8 This is a perspective view of the application of a metal profile combination structure of the present invention on a counter.

[0032] Figure 9 This is a left sectional view of the connection between the horizontal plate and the baffle in a metal profile composite structure according to the present invention.

[0033] Figure 10 This is a perspective view of a metal profile composite structure with the mounting groove removed from the horizontal plate.

[0034] Figure 11 This is a perspective view of a horizontal plate with an opening in a metal profile composite structure according to the present invention.

[0035] Figure 12 This is a three-dimensional view of a horizontal plate splicing structure of metal profiles according to the present invention.

[0036] Figure 13 yes Figure 8 Front sectional view.

[0037] Figure 14 yes Figure 13 An enlarged diagram of A in the diagram.

[0038] Among them, 1. Horizontal plate, 110. Positioning seat, 111. Positioning groove, 112. Notch, 120. Locking hole, 130. Opening, 140. Connecting rib, 2. Vertical plate, 210. Connecting hole, 3. Connecting component, 310. Connecting piece, 311. Locking groove, 320. Locking piece, 4. Light groove, 5. Mounting groove, 6. Baffle. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] Figure 1 This is a perspective view of a metal profile composite structure connection component according to the present invention. Figure 2 This is a front view of a metal profile composite structure connector according to the present invention. Figure 3 This is a front view of a metal profile combined structure locking component according to the present invention, as shown below. Figure 1 , 2In the embodiment shown in Figure 3, the present invention provides a metal profile assembly structure, including a horizontal plate 1, a vertical plate 2, and a connecting assembly 3. The horizontal plate 1 and the vertical plate 2 are perpendicularly connected to each other, with the horizontal plate 1 placed horizontally and the vertical plate 2 placed vertically, and the vertical plate 2 fixed on the left and right sides of the horizontal plate 1. The connecting assembly 3 includes a connector 310 and a locking member 320. The connector 310 has a first end and a second end arranged along the axial direction of the connector 310. The outer surface of the first end of the connector 310 is provided with a locking groove 311. The locking member 320 is inserted into the locking groove 311 along the radial direction of the connector 310 to lock the connector 310. In this way, by setting the connecting assembly 3 on the horizontal plate 1 and the vertical plate 2 respectively, the horizontal plate 1 and the vertical plate 2 can be fixed. Specifically, the cross-sectional shape of the connector 310 can be triangular, polygonal, circular, or other irregular shapes. In this embodiment, a circular shape is selected.

[0041] Specifically, the horizontal plate 1 and the vertical plate 2 are made of aluminum profiles, which are low in cost and lightweight.

[0042] Existing technologies generally increase the contact area of ​​the connecting component 3 by increasing the thickness of the horizontal plate 1 and the vertical plate 2 to improve the connection strength. This results in a large thickness of plate 1 and vertical plate 2, leading to high cost and weight, which is not conducive to lightweighting, movement, and handling. In contrast, the connecting component 3 of this invention mainly relies on the locking member 320 to lock in the locking groove 311 to achieve locking. It does not require additional thickness of the horizontal plate 1 and vertical plate 2. Furthermore, the horizontal plate 1 and vertical plate 2 are made of metal profiles, such as aluminum plates and stainless steel plates, which are lightweight, low-cost, and easy to handle and move.

[0043] To prevent the horizontal plate 1 and the vertical plate 2 from wobbling, the dimension of the locking groove 311 decreases from the end away from the axis of the connector 310 to the end facing the axis of the connector 310. This way, the closer the locking member 320 is to the locking groove 311, the more tightly it can be locked in the locking groove 311, which makes the connection between the locking member 320 and the connector 310 tighter, and the horizontal plate 1 and the vertical plate 2 are less likely to wobble.

[0044] As one embodiment, the locking groove 311 is an annular groove provided along the outer circumference of the connector 310, so that the locking member 320 can be locked in the locking groove 311 without rotating the connector 10, which is convenient for installation.

[0045] As one embodiment, the length of the locking groove 311 along the axial direction of the connector 310 decreases from the end away from the axis of the connector 310 to the end facing the axis of the connector 310, which facilitates the insertion of the locking member 320 into the locking groove 311. Specifically, the locking groove 311 along the axial direction of the connector 310 consists of a first groove 3111, a second groove 3112, and a third groove 3113. The first groove 3111 and the third groove 3113 are both frustum-shaped corresponding to the outer surface of the connector 310. The second groove 3112 is cylindrical corresponding to the outer surface of the connector 310. The diameter of the frustum-shaped end facing the second groove 3112 is equal to the diameter of the cylinder and smaller than the diameter of the frustum-shaped end away from the second groove 3112. This ensures that the locking member 320 can be firmly locked in the locking groove 311, and the outer surface of the frustum also serves as a guide.

[0046] As one embodiment, the locking member 320 has external threads on its outer side, which facilitates the installation of the locking member 320 on the horizontal plate 1 and / or the vertical plate 2 and also facilitates disassembly.

[0047] In one embodiment, the second end of the connector 310 is disposed on the surface of one of the horizontal plate 1 and the vertical plate 2, and the first end of the connector 310 extends into the other surface, with the locking member 320 passing through the other surface and engaging in the locking groove 311. That is, the second end of the connector 310 can be disposed on the horizontal plate 1, in which case the first end of the connector 310 extends into the vertical plate 2, and the corresponding locking member 320 passes through the surface of the vertical plate 2 and engages in the locking groove 311; or the second end of the connector 310 can be disposed on the vertical plate 2, in which case the first end of the connector 310 extends into the horizontal plate 1, and the corresponding locking member 320 passes through the surface of the horizontal plate 1 and engages in the locking groove 311.

[0048] Figure 4 This is a front sectional view of a horizontal plate of a metal profile composite structure according to the present invention. Figure 5 This is a three-dimensional sectional view of the horizontal plate and connecting components of a metal profile composite structure according to the present invention, as shown below. Figure 4 and 5 In the embodiment shown, the horizontal plate 1 is provided with a positioning seat 110 with a positioning groove 111 and a locking hole 120 with an internal thread.

[0049] The positioning seat 110 is located inside the horizontal plate 1, and the positioning groove 111 is arranged along the axial direction of the horizontal plate 1. At least one end of the positioning groove 111 extends through the end of the horizontal plate 1 along the axial direction. The first end of the connector 310 extends through the end of the horizontal plate 1 into the positioning groove 111, which facilitates the first end of the connector 310 extending through the end of the horizontal plate 1 into the positioning groove 111. Specifically, both ends of the positioning groove 111 extend through the end of the horizontal plate 1 along the axial direction, which facilitates the first end of the connector 310 extending through both ends of the horizontal plate 1 into the positioning groove 111, and facilitates the fixing of the vertical plate 2 at both ends of the horizontal plate 1. By setting a positioning seat 110 with a positioning groove 111, the thickness of the horizontal plate 1 can be thinner while ensuring the strength of the horizontal plate 1. It is not necessary to set an additional positioning sleeve for positioning the first end of the connector 310 inside the horizontal plate 1. Both ends of the positioning groove 111 penetrate through the end of the horizontal plate 1 along the axial direction. Thus, a positioning seat 110 can position the first end of the connector 310 extending into both ends of the positioning groove 111. The existing technology requires setting two positioning sleeves in both ends of the horizontal plate 1, which results in more parts, higher cost, more cumulative installation errors, lower installation accuracy, and inconvenience in installation.

[0050] A locking hole 120 is provided on the surface of the horizontal plate 1, connecting the positioning groove 111 and the outside of the horizontal plate 1. A locking member 320 passes through the locking hole 120 from the surface of the horizontal plate 1 and abuts against the locking groove 311, facilitating the locking member 320 to be engaged within the locking groove 311. The locking member 320 is threaded into the locking hole 120, facilitating installation and disassembly, and also making it easy to fix the locking member 320 within the locking hole 120. Furthermore, the tightness of the locking member 320 within the locking groove 311 can be adjusted by adjusting its depth within the locking hole 120, ensuring a secure connection between the horizontal plate 1 and the vertical plate 2, preventing wobbling and extending service life. Specifically, the end face of the locking member 320 away from the connecting member 310 has a countersunk hole for easy tightening with an Allen wrench.

[0051] As one embodiment, the horizontal plate 1 is hollow in the middle, and the positioning seats 110 are fixed to the top surface and inner bottom surface of the horizontal plate 1, respectively, reducing the weight of the horizontal plate 1 and reducing the amount of material used. Specifically, the positioning seats 110 and the horizontal plate 1 are integrally formed, which is convenient to manufacture and has high strength. Specifically, the side of the positioning seat 110 is provided with a notch 112, which is arranged along the axial direction of the positioning seat 110. This facilitates processing and also allows the positioning seat 110 to deform to a certain extent, making it easy for the connecting piece 310 to be inserted into the positioning groove 111, which is convenient for installation. At the same time, it is also easy to observe whether the locking piece 320 is stuck in the locking groove 311 through the notch 112.

[0052] Furthermore, such as Figure 11The horizontal plate 1 is also provided with connecting ribs 140. The positioning seat 110 is fixed to the top surface and inner bottom surface of the horizontal plate 1 respectively by the connecting ribs 140. One end of the locking hole 120 is located on the corresponding connecting rib 140, and the other end of the locking hole 120 is located on the surface of the horizontal plate 1. This increases the contact area between the locking member 320 and the locking hole 120, making the locking member 320 less prone to shaking. In addition, the setting of the connecting ribs 140 reduces the contact area between the positioning seat 110 and the horizontal plate 1, and increases the internal space of the horizontal plate 1. This results in a slower metal flow rate and slower extrusion speed during the extrusion molding process of the horizontal plate 1. This makes it less likely for cracks to appear on the outer surface of the horizontal plate 1, resulting in a smooth surface and ensuring product quality. Specifically, the connecting ribs 140 are set along the axial direction of the positioning seat 110, ensuring high connection strength between the connecting ribs 140 and the horizontal plate 1, as well as between the connecting ribs 140 and the positioning seat 110. The connecting ribs 140 also have certain dimensions to accommodate the setting of the locking hole 120. Specifically, the horizontal plate 1, the connecting rib 140, and the positioning seat 110 are a whole.

[0053] Figure 6 This is a top sectional view of a vertical plate of a metal profile composite structure according to the present invention. Figure 7 This is a top sectional view of the vertical plate and connector of the metal profile composite structure of the present invention, as shown below. Figure 6 and 7 In the embodiment shown, the surface of the vertical plate 2 is provided with a connecting hole 210, and the second end of the connector 310 is fixed in the connecting hole 210, so as to fix the connector 310 on the vertical plate 2.

[0054] As one embodiment, the vertical plate 2 and the horizontal plate 1 have the same structure, both having a positioning seat 110 with a positioning groove 111; the connecting hole 210 and the locking hole 120 are interchangeable, and the vertical plate 2 and the horizontal plate 1 are interchangeable, making installation convenient. Specifically, both the connecting hole 210 and the locking hole 120 are threaded holes, and both communicate with the positioning groove 111 of the positioning seat 110. That is to say, the second end of the connector 310 can be installed in either the connecting hole 210 or the locking hole 120. In this way, the vertical plate 2 also has a connecting rib 140, one end of the connecting hole 210 is located in the connecting rib 140, and the other end of the connecting hole 210 is located on the surface of the vertical plate 2. The contact area between the second end of the connector 310 and the connecting hole 210 is large, making the connector 310 less prone to shaking. Combined with the locking part 320, which also prevents shaking, this makes it less likely for the horizontal plate 1 and the vertical plate 2 to wobble.

[0055] Specifically, the first end of the connector 310 has a countersunk hole, which makes it easy to screw the second end of the connector 310 into the connecting hole 210 or the locking hole 120 with an Allen wrench.

[0056] Specifically, at least one of the surfaces of the vertical panel 2 and the horizontal panel 1 is provided with a light groove 4 for installing LED lights, facilitating the installation of LED lights. When the vertical panel 2 and the horizontal panel 1 are assembled into a cabinet, it is convenient to install LED lights inside the cabinet to provide lighting functionality. Specifically, the light groove 4 is arranged along the axial direction of the vertical panel 2 or the horizontal panel 1. Specifically, the light groove 4 is inclined, making it less likely for the light fixtures inside the light groove 4 to fall out, and the angle of illumination is tilted, resulting in soft light. Specifically, the opening of the light groove 4 faces inwards towards the cabinet, so the light is not glaring. When no LED lights are installed in the light groove 4, the light groove 4 can be sealed with a plug, providing flexibility in use.

[0057] Specifically, relative to the cabinet body, both the rear end of the horizontal panel 1 and the rear end of the vertical panel 2 are provided with mounting grooves 5. The mounting groove 5 of the horizontal panel 1 is set along the axial direction of the horizontal panel 1, and the mounting groove 5 of the vertical panel 2 is set along the axial direction of the vertical panel 2. The left and right sides of the baffle 6 at the rear end of the cabinet body are fitted into the mounting grooves 5 of the vertical panel 2, and the upper and lower ends of the baffle 6 are fitted into the mounting grooves 5 of the horizontal panel 1. The baffle 6 is located between the two left and right vertical panels 2, the uppermost horizontal panel 1, and the lowermost horizontal panel 1. Figure 9 .

[0058] Within the cabinet, the horizontal panel 1 can have various structures. One type has mounting grooves 5 on the horizontal panel 1, typically located at the top and bottom of the cabinet, for installing a baffle 6. The baffle 6 is located at the rear end of the cabinet, sealing off the rear end. Figure 4 One type is a horizontal plate 1 installed in the middle of the vertical plate 2. The horizontal plate 1 does not have a mounting groove 5. A single horizontal plate 1 forms a partition in the cabinet. The rear end of the horizontal plate 1 abuts against the surface of the baffle 6, such as... Figure 10 One type is a horizontal board 1 installed in the middle of the vertical board 2. Multiple horizontal boards 1 form a cabinet layer. Multiple horizontal boards 1 are spliced ​​together to form horizontal boards 1 of different sizes, suitable for various cabinets in the home, such as bathroom cabinets, wardrobes, storage cabinets, etc. In the same layer, the front and rear ends of the middle horizontal board 1 are provided with openings 130. The rear end of the horizontal board 1 at the front end of the cabinet is inserted into the opening 130 at the front end of the middle horizontal board 1, and the front end of the horizontal board 1 at the rear end of the cabinet is inserted into the opening 130 at the rear end of the middle horizontal board 1. The rear end of the horizontal board 1 at the rear end of the cabinet abuts against the surface of the baffle 6. The left and right ends of the horizontal board 1 are respectively fixed to the surface of the vertical board 2, such as... Figure 11 and 12 .

[0059] The present invention also provides a processing technology for manufacturing the above-described metal profile composite structure, which includes the following steps:

[0060] S1. Sheet metal cutting: Cutting metal sheets into horizontal and vertical pieces of corresponding dimensions;

[0061] S2. Processing and forming: The horizontal plate and the vertical plate are formed into horizontal plate 1 and vertical plate 2 respectively by pressure forming process;

[0062] S3: Finishing: Polish the surfaces of horizontal plate 1 and vertical plate 2 respectively;

[0063] S4: Surface treatment: Apply rust prevention treatment to the surfaces of horizontal plate 1 and vertical plate 2;

[0064] S5: Assembly: Use connecting component 3 to fix horizontal plate 1 and vertical plate 2 together.

[0065] In step S5, when the horizontal plate 1 is installed on the vertical plate 2, both ends of the horizontal plate 1 abut against the inner surface of the vertical plate 2. The first end of the connector 310 is installed in the connecting hole 210 of the vertical plate 2, and the second end of the connector 310 extends into the positioning groove 111 of the horizontal plate 1. The locking member 320 passes through the locking hole 120 of the horizontal plate 1 and is engaged in the locking groove 311. Figure 8 , 13 And 14.

[0066] The principle of this invention is to set up a connecting component 3, which includes a connector 310 and a locking component 320. The connector 310 is used to fix the horizontal plate 1 and the vertical plate 2 together. The first end of the connector 310 is provided with a locking groove 311, and the size of the locking groove 311 decreases from the end away from the axis of the connector 310 to the end facing the axis of the connector 310. The locking component 320 is locked in the locking groove 311. The deeper the locking component 320 is pressed, the tighter the locking component 320 locks the connector 310. In this way, the connection between the horizontal plate 1 and the vertical plate 2 is reliable, and the horizontal plate 1 and the vertical plate 2 are vertically connected. The horizontal plate 1 and the vertical plate 2 are not easy to shake, and the service life is long.

[0067] Operation process: When the horizontal plate 1 is installed on the vertical plate 2, both ends of the horizontal plate 1 abut against the inner surface of the vertical plate 2. The first end of the connector 310 is installed in the connecting hole 210 of the vertical plate 2, and the second end of the connector 310 extends into the positioning groove 111 of the horizontal plate 1. The locking member 320 passes through the locking hole 120 of the horizontal plate 1 and is engaged in the locking groove 311. Figure 8 The horizontal plate 1 is installed at both ends and in the middle of the vertical plate 2.

[0068] Based on the above solutions, if various modifications or variations to the present invention do not depart from the spirit and scope of the present invention, and if such modifications and variations fall within the scope of the claims and equivalent technologies of the present invention, then the present invention also intends to include such modifications and variations.

Claims

1. A metal profile assembly structure, comprising a horizontal plate (1) and a vertical plate (2), characterized in that: It also includes: A connecting assembly (3) includes a connector (310) and a locking member (320). The connector (310) has a first end and a second end arranged along the axial direction of the connector (310). The outer surface of the first end of the connector (310) is provided with a locking groove (311). The size of the locking groove (311) at the end away from the axis of the connector (310) decreases from the size of the locking groove (311) at the end facing the axis of the connector (310). The second end of the connector (310) is located on the surface of one of the horizontal plate (1) and the vertical plate (2), the first end of the connector (310) extends into the other, and the locking member (320) passes through the other surface and is engaged in the locking groove (311).

2. The metal profile composite structure according to claim 1, characterized in that: The locking groove (311) is an annular groove provided along the outer circumference of the connector (310).

3. A metal profile assembly structure according to claim 1 or 2, characterized in that: The length of the locking groove (311) along the axial direction of the connector (310) decreases from the end away from the axis of the connector (310) to the end towards the axis of the connector (310).

4. The metal profile composite structure according to claim 1, characterized in that: The locking member (320) has external threads on its outer side.

5. A metal profile assembly structure according to claim 1, characterized in that: The horizontal plate (1) is provided with: a positioning seat (110) having a positioning groove (111) and located in the horizontal plate (1). The positioning groove (111) is arranged along the axial direction of the horizontal plate (1). At least one end of the positioning groove (111) passes through the end of the horizontal plate (1) along the axial direction of the horizontal plate (1). The first end of the connector (310) extends into the positioning groove (111) through the end of the horizontal plate (1). A locking hole (120) with internal threads is provided on the surface of the horizontal plate (1). The locking hole (120) connects the positioning groove (111) and the outside of the horizontal plate (1). The locking member (320) passes through the locking hole (120) and abuts against the locking groove (311).

6. A metal profile assembly structure according to claim 5, characterized in that: The horizontal plate (1) is hollow in the middle, and the positioning seat (110) is fixed on the top surface and the inner bottom surface of the horizontal plate (1).

7. A metal profile assembly structure according to any one of claims 1-6, characterized in that: The vertical plate (2) has a connecting hole (210) on its surface, and the second end of the connector (310) is fixed in the connecting hole (210).

8. A metal profile assembly structure according to claim 7, characterized in that: The vertical plate (2) has the same structure as the horizontal plate (1); the connecting hole (210) and the locking hole (120) are interchangeable.

9. A metal profile assembly structure according to claim 1, characterized in that: At least one of the vertical plate (2) and the horizontal plate (1) has a light groove (4) for mounting LED lights on its surface.

10. A processing method for manufacturing a metal profile assembly structure as described in claims 1-9, characterized in that: It includes the following steps: S1. Sheet metal cutting: Cutting metal sheets into horizontal and vertical pieces of corresponding dimensions; S2. Processing and forming: The horizontal plate and the vertical plate are formed into horizontal plates and vertical plates respectively by pressure forming process; S3: Finishing: Polish the surfaces of the horizontal and vertical plates separately; S4: Surface treatment: Rust prevention treatment is applied to the surfaces of the horizontal and vertical plates; S5: Assembly: Use connecting components to fix the horizontal and vertical plates together.

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