Profile connection structure and profile assembly assembly

Abstract

The application relates to a profile connecting structure and a profile assembly component, and is applied to the field of profile assembly technology. The connecting structure comprises a connecting structure body, at least two split parts and a clamping part. The split parts are connected to the connecting structure body and are used for split connection with profiles. The split parts are arranged at intervals along the circumference of the connecting structure body. The clamping part is connected to the split part and comprises a split position and a clamping position. The clamping part deforms and stores energy during the splitting process, so that the clamping part always maintains a tendency to move from the split position to the clamping position. The clamping part of the application can store energy through deformation during the splitting process and always maintains a tendency to move from the split position to the clamping position, thereby automatically and reliably achieving clamping after the profile is in place, and effectively preventing loosening. The structure as a whole realizes lossless and repeatedly detachable connection between the profiles, and the assembly process does not require tools or additional operations, thereby significantly improving the assembly efficiency and connection reliability.

Description

Technical Field

[0001] This application relates to the field of profile assembly technology, and in particular to a profile connection structure and profile assembly assembly components. Background Technology

[0002] Profiles refer to metal or plastic materials with specific cross-sectional shapes produced through processes such as extrusion, rolling, or drawing. They are widely used in furniture, construction, decoration, and other fields. Due to the limited length of a single profile, in practical applications, it is often necessary to use connecting structures to assemble multiple profiles into a complete structure to meet different usage and spatial layout requirements.

[0003] In related technologies, profile connection methods mainly include welding, corner bracket screw fixing, and bonding. Welding achieves connection by melting materials at high temperatures, corner bracket screws require drilling holes in the profiles and tightening with bolts, while bonding relies on adhesives to bond the profiles together.

[0004] However, all of the above connection methods share a common problem: they often require permanent modification or damage to the profiles during the connection process. For example, welding can cause material deformation, screw holes can damage the integrity of the profiles, and adhesive residues are difficult to remove. This not only affects the reusability of the profiles but also limits their flexible assembly and disassembly in different scenarios. Utility Model Content

[0005] Therefore, it is necessary to provide a profile connection structure and profile assembly component to address the problem that existing profile connection structures cannot be repeatedly disassembled and used and will damage the profile body.

[0006] In a first aspect, this application provides a profile connection structure, which adopts the following technical solution:

[0007] A profile connection structure includes a connection structure body, at least two splicing parts, and a snap-fit ​​part. The splicing parts are connected to the connection structure body and are used for splicing and connecting with a profile. The splicing parts are spaced apart along the circumference of the connection structure body. The snap-fit ​​part is connected to the splicing parts and has splicing positions and snap-fit ​​positions arranged at intervals. The splicing positions are closer to the splicing parts than the snap-fit ​​positions. The snap-fit ​​part can deform and store energy during the splicing process, so that the snap-fit ​​part always maintains a tendency to move from the splicing position to the snap-fit ​​position.

[0008] In one embodiment, the splicing part is provided with at least two snap-fit ​​parts, which are connected to the side wall of the splicing part for splicing and connecting with the profile.

[0009] In one embodiment, the snap-fit ​​portion is configured as an arc-shaped spring sheet connected to the splicing portion.

[0010] In one embodiment, the opening of the arc-shaped spring sheet is configured to face away from the assembly direction of the joint.

[0011] In one embodiment, the splicing portion includes a guide section and a plug-in section connecting the guide section and the connecting structure body, the snap-fit ​​portion being connected to one side wall of the guide section in the width direction; the dimension of the guide section gradually decreases in the width direction from one end of the splicing portion near the connecting structure body to one end away from the connecting structure body.

[0012] In one embodiment, the profile connection structure further includes an abutment portion connected to the connection structure body and / or the splicing portion; when the snap-fit ​​portion is switched to the snap-fit ​​position, the abutment portion can contact the end of the profile.

[0013] Secondly, this application provides a profile assembly component, which adopts the following technical solution:

[0014] A profile assembly component includes the aforementioned profile connection structure and at least two profiles to be assembled, wherein the profiles are detachably connected by means of the profile connection structure.

[0015] In one embodiment, the profile connecting structure is detachably connected to the end of the profile, and the profile connecting structure and / or the profile is provided with a limiting part, which is used to limit the relative position between the profile connecting structure and the profile.

[0016] In one embodiment, the limiting portion includes a first toothed edge disposed on the profile connecting structure and a second toothed edge disposed on the profile, wherein the first toothed edge and the second toothed edge are adapted oblique tooth surfaces and can mesh with each other.

[0017] In one embodiment, the oblique tooth surface is a continuous tooth pattern or an intermittent tooth pattern.

[0018] The aforementioned profile connection structure provides stable support through its main body and utilizes the splicing part to achieve rapid alignment and initial connection with the profile. Its core lies in the snap-fit ​​part, which stores energy through deformation during the splicing process and maintains a constant tendency to move from the splicing position to the snap-fit ​​position. This automatically and reliably locks the profile in place, effectively preventing loosening. The entire structure achieves a non-destructive, repeatedly detachable connection between profiles, and the assembly process requires no tools or additional operations, significantly improving assembly efficiency and connection reliability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the profile connection structure in one embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the profile connection structure in another embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the profile connection structure in another embodiment of this application.

[0022] Figure 4 This is a schematic diagram of the profile connection structure in another embodiment of this application.

[0023] Figure 5 This is a schematic diagram of a profile assembly component with the snap-fit ​​portion in the splicing position according to one embodiment of this application.

[0024] Figure 6 This is a schematic diagram of a profile assembly with the snap-fit ​​portion in the snap-fit ​​position according to an embodiment of this application.

[0025] Figure 7 This is a schematic diagram of a profile assembly assembly in another embodiment of this application.

[0026] Figure 8 This is a schematic diagram of a profile assembly component in another embodiment of this application.

[0027] Figure 9 It shows Figure 6 Enlarged view of section A.

[0028] Attached image annotations:

[0029] 1. Profile connection structure; 11. Connection structure body; 12. Assembly part; 121. Guide section; 1211. Guide slope; 122. Insertion section; 13. Snap-fit ​​part; 14. Abutting part; 2. Profile; 21. Slot; 3. Limiting part; 31. First toothed edge; 32. Second toothed edge. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] If an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0036] The following is in conjunction with the appendix Figure 1-9 The embodiments of this application will be described in further detail.

[0037] See Figure 1 , Figure 1 A schematic diagram of a profile connection structure in one embodiment of this application is shown. One embodiment of this application provides a profile connection structure 1, specifically a connection structure applicable to furniture made of steel, aluminum, plastic, and other profiles 2. This profile connection structure 1 enables non-destructive splicing between different profiles 2, and after splicing, it is equipped with limiting components to prevent loosening, thereby improving the overall splicing stability of the structure.

[0038] The profile connection structure 1 includes a connection structure body 11, an assembly part 12, and a snap-fit ​​part 13. The connection structure body 11 is constructed as a square plate or block structure with four outer surfaces arranged sequentially along the circumference. The connection structure body 11 can be injection molded from high-strength engineering plastic or metal material to provide structural support for the overall profile connection structure 1. The snap-fit ​​part 13 is connected to the connection structure body 11 via the assembly part 12 and is used to insert into the profile 2 to achieve a detachable assembly connection with the profile 2.

[0039] In this embodiment of the application, each connecting structure body 11 is provided with at least two splicing parts 12. All splicing parts 12 are arranged at intervals along the circumference of the connecting structure body 11. Each splicing part 12 can be connected to a profile 2 to be assembled, so as to realize the detachable assembly between multiple profiles 2.

[0040] In this application, the preferred splicing connection is a mortise and tenon connection between the profile 2 and the profile connecting structure 1. It is understood that in some other embodiments, the connection between the profile 2 and the profile connecting structure 1 can also be achieved by means of a snap-fit. In this application, only the mortise and tenon connection is used as an example for illustration.

[0041] Continue reading Figure 1As shown, in some embodiments, each connecting structure body 11 is provided with two splicing parts 12. The two splicing parts 12 are respectively connected to two adjacent outer sides of the connecting structure body 11 to form an overall "L"-shaped profile connecting structure 1. The splicing parts 12 are used to splice and connect with the ends of the profile 2, thereby realizing the right-angle connection between the profiles 2.

[0042] Combination Figure 2 As shown, Figure 2 A schematic diagram of the profile connection structure in another embodiment of this application is shown. In some other embodiments, two splicing parts 12 are respectively connected to two opposite outer surfaces of the connection structure body 11 to form an "l"-shaped profile connection structure 1 as a whole. The splicing parts 12 are also used to splice and connect with the ends of the profile 2 to realize the continuation operation of the profile 2 in the longitudinal direction.

[0043] Combination Figure 3 As shown, Figure 3 A schematic diagram of a profile connection structure in another embodiment of this application is shown. In some embodiments, each connection structure body 11 is provided with three splicing parts 12. The three splicing parts 12 are distributed circumferentially along the connection structure body 11 and are respectively connected to the three outer surfaces of the connection structure body 11 to form a profile connection structure 1 in the shape of a "T". Each splicing part 12 is used to splice and connect with the end of the profile 2, so that the three sections of profile 2 can be spliced ​​together by means of the profile connection structure 1 to form a profile 2 assembly in the shape of a "T".

[0044] See Figure 4 As shown, Figure 4 A schematic diagram of a profile connection structure in another embodiment of this application is shown. In some embodiments, a splicing part 12 is provided on the outer side of each connection structure body 11. Four splicing parts 12 are distributed at intervals along the circumference of the connection structure body 11 and connected to the corresponding outer side to form a profile connection structure 1 in the shape of a cross. Each splicing part 12 is used to splice and connect with the end of the profile 2, so that the four sections of profile 2 can be spliced ​​together by means of the profile connection structure 1 to form a profile 2 component in the shape of a cross, so as to meet the splicing requirements of profile 2 in different application scenarios.

[0045] Continue reading Figures 1 to 4 As shown, in some embodiments, the snap-fit ​​part 13 is integrally formed on the connecting structure body 11 by means of the splicing part 12. Through the integral forming design of the snap-fit ​​part 13, the splicing part 12 and the connecting structure body 11, the overall structural strength of the profile connecting structure 1 can be effectively guaranteed and the service life of the profile connecting structure 1 can be extended.

[0046] The snap-fit ​​part 13 is constructed as an integrally formed arc-shaped spring sheet on the splicing part 12, which can be either a plastic spring sheet or a metal spring sheet. The opening of the arc-shaped spring sheet is set to face away from the assembly direction of the splicing part 12 to reduce the possibility of the arc-shaped spring sheet getting stuck between itself and the profile 2 during the splicing process.

[0047] In this embodiment of the application, for ease of explanation, the end of the snap-fit ​​portion 13 that is far away from the splicing portion 12 is defined as the free end. The free end of the snap-fit ​​portion 13 has two working positions, namely the splicing position and the snap-fit ​​position which are set at intervals. The splicing position is closer to the splicing portion 12 than the snap-fit ​​position.

[0048] Specifically, when the profile 2 is not inserted into place, the snap-fit ​​part 13 is in the splicing position. At this time, the free end of the snap-fit ​​part 13 moves closer to the inner wall of the splicing part 12 under the pressure of the inner wall of the profile 2. After the profile 2 is inserted into place, the free end of the snap-fit ​​part 13 switches to the snap-fit ​​position. At this time, the snap-fit ​​part 13 snaps into the corresponding slot 21 on the profile 2 to realize the detachable assembly between the profile connection structure 1 and the profile 2.

[0049] In this embodiment, the snap-fit ​​part 13 undergoes elastic deformation during the insertion of the profile 2 to store energy, and always maintains an elastic tendency to move from the splicing position to the snap-fit ​​position, thereby realizing the automatic snap-fit ​​function between the profile connection structure 1 and the profile 2.

[0050] In some embodiments, the splicing portion 12 is provided with at least two snap-fit ​​portions 13, which are connected to the sidewall of the splicing portion 12 for engaging with the slots 21 on the profile 2. Figure 1 As shown in the example, each splicing part 12 is provided with two snap-fit ​​parts 13. The two snap-fit ​​parts 13 are respectively connected to the two opposite sides of the splicing part 12 in the width direction to enhance the splicing stability between the splicing part 12 and the profile 2.

[0051] The longitudinal direction of the splicing portion 12 is defined as the direction of the line connecting the end of the splicing portion 12 closest to the connecting structure body 11 and the end of the splicing portion 12 furthest from the connecting structure body 11. The width direction of the splicing portion 12 is perpendicular to the longitudinal direction of the splicing portion 12.

[0052] Specifically, during the insertion of profile 2, the free end of the snap-fit ​​part 13 is squeezed by the inner wall of profile 2 and moves from the snap-fit ​​position to the splicing position, storing energy due to elastic deformation during the movement. After profile 2 is inserted into place, snap-fit ​​part 13 is adapted to be inserted into the corresponding slot 21 on profile 2, and the free end of snap-fit ​​part 13 returns from the splicing position to the snap-fit ​​position and is adapted to be engaged with the inner wall of slot 21, so as to avoid the loosening of profile connection structure 1 and profile 2 after splicing, which can effectively improve the overall structural stability of the component after the profile 2 is spliced.

[0053] It is understood that in some other embodiments, each splicing part 12 may be provided with two or more snap-fit ​​parts 13, preferably an even number of snap-fit ​​parts 13. All the snap-fit ​​parts 13 are divided into two equal parts and are respectively arranged on opposite sides of the splicing part 12 in the width direction. Each snap-fit ​​part 13 can be engaged with the corresponding slot 21 on the profile 2 to realize multi-point snap-fit ​​connection between the profile connection structure 1 and the profile 2, thereby further improving the overall structural stability of the component after the profile 2 is spliced.

[0054] During the assembly process of the profile 2, the above-mentioned profile connection structure 1 provides stable support through the connection structure body 11, and uses the assembly part 12 to achieve quick alignment and initial connection with the profile 2. Its core is that the snap-fit ​​part 13 can store energy through deformation during the assembly process and always maintain the trend of moving from the assembly position to the snap-fit ​​position, so that the profile 2 can be automatically and reliably snapped in place after it is in place, effectively preventing loosening.

[0055] The structure enables a non-destructive, repeatedly detachable connection between the two profiles, and the assembly process requires no tools or additional operations, significantly improving assembly efficiency and connection reliability.

[0056] Combination Figures 1 to 4 As shown, in some embodiments, the splicing portion 12 includes a guide section 121 and an insertion section 122 connecting the guide section 121 and the connecting structure body 11. The aforementioned snap-fit ​​portion 13 is integrally formed on one side wall of the guide section 121 in the width direction. Along the longitudinal direction of the splicing portion 12, from the end of the splicing portion 12 close to the connecting structure body 11 to the end of the splicing portion 12 away from the connecting structure body, the dimension of the guide section 121 in the width direction gradually decreases, so that the two opposite side walls of the guide section 121 in the width direction respectively form guide slopes 1211 for guiding.

[0057] The snap-fit ​​part 13 is connected to the end of the guide slope 1211 away from the insertion section 122. The guide slope 1211 is used to guide the profile 2 to insert and press the snap-fit ​​part 13 during the assembly process, so as to realize the rapid alignment of the profile connection structure 1 and the profile 2.

[0058] During the assembly process, the free end of the snap-fit ​​part 13 moves toward the guide slope 1211 under the squeezing action of the profile 2 and is accommodated in the area defined by the guide slope 1211 and the inner wall of the profile 2. The guide slope 1211 has a clearance function, which can provide sufficient space for the movement of the free end of the snap-fit ​​part 13.

[0059] In some other embodiments, the profile connecting structure 1 further includes an abutting portion 14 connected to the connecting structure body 11 and / or the splicing portion 12, the abutting portion 14 being integrally formed on the connecting structure body 11 and / or the splicing portion 12. During the splicing process, when the profile 2 is inserted into place, the free end of the locking portion 13 switches from the splicing position to the locking position under the action of elastic force, and is adapted to and engaged with the corresponding slot 21 on the profile 2. Here, the abutting portion 14 can contact the end of the profile 2 to prevent further relative movement between the profile 2 and the locking portion 13.

[0060] In this embodiment, the contact part 14 can facilitate the operator to judge from the outside whether the profile 2 is assembled in place during the assembly process, and can also effectively prevent the assembly part 12 from being excessively compressed during the assembly process, thus avoiding accidental damage.

[0061] See Figures 5 to 8 As shown, Figure 5 This diagram illustrates a profile assembly assembly with the snap-fit ​​portion in the spliced ​​position according to an embodiment of this application. Figure 6 This illustration shows a schematic diagram of a profile assembly with the snap-fit ​​portion in the snap-fit ​​position according to an embodiment of this application. Figure 7 A schematic diagram of a profile assembly assembly according to another embodiment of this application is shown. Figure 8 A schematic diagram of a profile assembly assembly is shown for yet another embodiment of this application.

[0062] in, Figure 5 and Figure 6 The diagram illustrates a profile assembly assembly 2 achieved through a two-way profile connection structure 1. Figure 7 The diagram illustrates the assembly assembly of profile 2, which is achieved through a three-way profile connection structure 1. Figure 8 The diagram shows the assembly assembly of profile 2, which is assembled using a four-way profile connection structure 1.

[0063] In some embodiments, this application also provides a profile assembly assembly, which is used to manufacture profile furniture after assembly. The profile assembly assembly includes at least two profiles 2 to be assembled and a profile connection structure 1 as shown in any of the above embodiments, wherein the profiles 2 can be quickly and stably detachably connected by means of the profile connection structure 1.

[0064] Combination Figure 9 As shown, Figure 9 It shows Figure 6 Enlarged view of part A. In some embodiments, the ends of the profile connecting structure 1 and the profile 2 are detachably connected, and the profile connecting structure 1 and / or the profile 2 are provided with a limiting part 3, which is used to limit the relative position between the profile connecting structure 1 and the profile 2.

[0065] Specifically, the limiting part 3 includes a first toothed edge 31 disposed on the profile connecting structure 1 and a second toothed edge 32 disposed on the profile 2. Specifically, the first toothed edge 31 is integrally formed on the side of the contact part 14 of the profile connecting structure 1, and the second toothed edge 32 is integrally formed on the end of the profile 2. The first toothed edge 31 and the second toothed edge 32 are adapted oblique tooth surfaces and can mesh with each other. The side of the contact part 14 and the end face of the profile 2 cooperate with each other and are defined as the mating surface (not shown). The mating surface and the side of the splicing part 12 are arranged at a 45° angle.

[0066] by Figure 6 As shown in the example, after the snap-fit ​​part 13 is inserted into place, it always maintains the tendency to move from the splicing position to the snap-fit ​​position, thereby applying an outward force to the inner wall of the profile end. The mating surface between the side of the contact part 14 and the profile 2 is designed as a 45° inclined slope structure, so that the contact part 14 always applies an inward force to the outer wall of the profile end. This, together with the force applied to the profile by the snap-fit ​​part 13, restricts the relative position of the profile 2 and the profile connection structure 1 in the width direction, plays a role in preventing detachment, and improves the stability of the connection between the profile 2 and the profile connection structure 1.

[0067] During the splicing process of profile 2, as profile 2 and profile connecting structure 1 move towards each other, the first toothed edge 31 and the second toothed edge 32 gradually mesh, making the connection between profile 2 and profile connecting structure 1 tighter and preventing profile 2 from deforming and loosening, thus preventing the locking part 13 from failing to engage. The oblique toothed surface has continuous or intermittent tooth patterns; in this embodiment, wavy toothed surfaces are preferred.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A profile connection structure, characterized in that, include: Connecting the main body of the structure; At least two splicing portions are connected to the connecting structure body and used for splicing with the profile, the splicing portions being spaced apart circumferentially along the connecting structure body; and A snap-fit ​​part is connected to the splicing part. The snap-fit ​​part has splicing positions and snap-fit ​​positions arranged at intervals. The splicing positions are closer to the splicing part than the snap-fit ​​positions. The snap-fit ​​part can deform and store energy during the assembly process, so that the snap-fit ​​part always maintains the tendency to move from the assembly position to the snap-fit ​​position.

2. The profile connection structure according to claim 1, characterized in that, The splicing part is provided with at least two snap-fit ​​parts, which are connected to the side wall of the splicing part for splicing and connecting with the profile.

3. The profile connection structure according to claim 1 or 2, characterized in that, The snap-fit ​​part is constructed as an arc-shaped spring sheet connected to the splicing part.

4. The profile connection structure according to claim 3, characterized in that, The opening of the arc-shaped spring sheet is configured to face away from the assembly direction of the splicing part.

5. The profile connection structure according to claim 1 or 2, characterized in that, The splicing part includes a guide section and a plug-in section connecting the guide section and the connecting structure body, and the snap-fit ​​part is connected to one side wall of the guide section in the width direction; From the end of the splicing portion closest to the connecting structure body to the end furthest from the connecting structure body, the guide segment gradually decreases in width.

6. The profile connection structure according to claim 1 or 2, characterized in that, The profile connection structure also includes an abutment portion, which is connected to the connection structure body and / or the splicing portion; when the snap-fit ​​portion is switched to the snap-fit ​​position, the abutment portion can contact the end of the profile.

7. A profile assembly component, characterized in that, The profile assembly includes: The profile connection structure as described in any one of claims 1-6; and At least two profiles to be assembled, the profiles being detachably connected by means of the profile connection structure.

8. The profile assembly assembly according to claim 7, characterized in that, The profile connecting structure is detachably connected to the end of the profile, and a limiting part is provided on the profile connecting structure and / or the profile, the limiting part being used to limit the relative position between the profile connecting structure and the profile.

9. The profile assembly assembly according to claim 8, characterized in that, The limiting part includes a first toothed edge disposed on the profile connecting structure and a second toothed edge disposed on the profile, wherein the first toothed edge and the second toothed edge are adapted oblique tooth surfaces and can mesh with each other.

10. The profile assembly assembly according to claim 9, characterized in that, The oblique tooth surface has continuous or discontinuous tooth patterns.

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