Corner connector assembly

Abstract

The utility model provides a corner connector assembly, and relates to the technical field of connecting pieces. The corner connector assembly comprises a first corner connector, a second corner connector and a fixing structure. The first corner brace comprises a first fixing part and a first connecting part, the first fixing part is connected with the first connecting part, the thickness of the first fixing part is smaller than that of the first connecting part, and a first notch is formed between the first fixing part and the first connecting part; the second corner brace comprises a second fixing part and a second connecting part, the second fixing part is connected with the second connecting part, the thickness of the second fixing part is smaller than that of the second connecting part, and a second notch is formed between the second fixing part and the second connecting part; the first fixing part and the second fixing part are adjustably connected through a fixing structure, and the bottom wall of the first notch is attached to the bottom wall of the second notch. The corner connector assembly solves the technical problem that in the prior art, the angle fixation of a corner connector cannot meet the requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting pieces, in particular to a corner fitting assembly. Background Art

[0002] There are hundreds of corner fittings used for corner assembly of current doors, windows and various outdoor decorative pipe groups, which are classified according to size and shape. However, most of them are common 90-degree angles according to the angle classification, and there is no corner fitting that can arbitrarily change the angle according to the change of the corner assembly shape. With the progress and development of the times, using corner fittings that can form multiple angles for corner assembly can meet the requirements of customers. Content of the Utility Model

[0003] The purpose of the utility model is to provide a corner fitting assembly to alleviate the technical problem that the fixed angle of the corner fitting in the prior art cannot meet the requirements.

[0004] To solve the above technical problem, the technical solution provided by the utility model lies in:

[0005] The corner fitting assembly provided by the utility model includes a first corner fitting, a second corner fitting and a fixing structure;

[0006] The first corner fitting includes a first fixing part and a first connecting part. The first fixing part is connected to the first connecting part. The thickness of the first fixing part is less than that of the first connecting part, so that a first notch is formed between the first fixing part and the first connecting part;

[0007] The second corner fitting includes a second fixing part and a second connecting part. The second fixing part is connected to the second connecting part, and the thickness of the second fixing part is less than that of the second connecting part, so that a second notch is formed between the second fixing part and the second connecting part;

[0008] The first fixing part and the second fixing part are adjustably connected through the fixing structure, and the bottom wall of the first notch is attached to the bottom wall of the second notch.

[0009] Furthermore, the first corner fitting and the second corner fitting are the same.

[0010] Furthermore, the fixing structure includes a pin and a fixing hole;

[0011] The first fixing part and the second fixing part are both provided with the fixing hole. The pin is sequentially inserted into the fixing hole of the first fixing part and the fixing hole of the second fixing part, and the positioning pin is in interference fit with the fixing hole.

[0012] Further, the fixing structure includes a positioning pin and a positioning hole. The outer wall of the positioning pin is provided with a plurality of limiting protrusions arranged at intervals along the circumferential direction of the positioning pin, and the inner wall of the positioning hole is provided with a plurality of limiting grooves arranged at intervals along the circumferential direction of the positioning hole. The number of the limiting grooves is equal to or greater than the number of the limiting protrusions;

[0013] Both the first fixing portion and the second fixing portion are provided with the positioning holes. The positioning pin is sequentially inserted into the positioning holes of the first fixing portion and the second fixing portion, and the limiting protrusions are correspondingly inserted into the limiting grooves.

[0014] Further, the included angle between two adjacent limiting protrusions is an integer multiple of the included angle between two adjacent limiting grooves.

[0015] Further, the fixing structure includes a positioning post provided on the bottom wall of the first notch and a limiting hole provided on the second fixing portion;

[0016] The positioning post is inserted into the limiting hole.

[0017] Further, the outer wall of the positioning post is provided with a plurality of positioning protrusions arranged at intervals along the circumferential direction of the positioning post, and the inner wall of the limiting hole is provided with a plurality of positioning grooves arranged at intervals along the circumferential direction of the limiting hole. The number of the positioning protrusions matches the number of the positioning grooves;

[0018] The positioning post is inserted into the limiting hole, and the positioning protrusions are inserted into the positioning grooves.

[0019] Further, the fixing structure includes a toothed surface and a fastener;

[0020] Both the bottom wall of the first notch and the bottom wall of the second notch are provided with the toothed surfaces, and the toothed surface of the first notch meshes with the toothed surface of the second notch;

[0021] The fastener sequentially passes through the first fixing portion and the second fixing portion.

[0022] Further, one side of the first fixing portion is flush with one side of the first connecting portion, and the other side of the first fixing portion is lower than the other side of the first connecting portion, forming the first notch;

[0023] One side of the second fixing portion is flush with one side of the second connecting portion, and the other side of the second fixing portion is lower than the other side of the second connecting portion, forming the second notch.

[0024] Further, both the side walls of the first connecting portion and the side walls of the second connecting portion are provided with connecting grooves.

[0025] Based on the above technical solutions, the technical effects achievable by the present utility model are analyzed as follows:

[0026] The corner fitting assembly provided by the present utility model includes a first corner fitting, a second corner fitting, and a fixing structure; the first corner fitting includes a first fixing portion and a first connecting portion, the first fixing portion is connected to the first connecting portion, and the thickness of the first fixing portion is less than the thickness of the first connecting portion, so that a first notch is formed between the first fixing portion and the first connecting portion; the second corner fitting includes a second fixing portion and a second connecting portion, the second fixing portion is connected to the second connecting portion, and the thickness of the second fixing portion is less than the thickness of the second connecting portion, so that a second notch is formed between the second fixing portion and the second connecting portion; the first fixing portion and the second fixing portion are adjustably connected through the fixing structure, and the bottom wall of the first notch is attached to the bottom wall of the second notch. Among them, the adjustably connected means that the angle between the first corner fitting and the second corner fitting can be adjusted before connection and the first corner fitting and the second corner fitting are connected according to the adjusted angle. The first fixing portion and the second fixing portion are adjustably connected to achieve the adjustable connection of the first corner fitting and the second corner fitting; the first connecting portion and the second connecting portion are used to connect profiles, realize the connection of two profiles, and the angle between the two profiles is not limited to 90 degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 Structural schematic diagram of the second embodiment of the corner fitting assembly provided by the embodiment of the present utility model Figure 1 ;

[0029] Figure 2 Structural schematic diagram of the second embodiment of the corner fitting assembly provided by the embodiment of the present utility model Figure 2 ;

[0030] Figure 3 Structural schematic diagram of the second embodiment of the corner fitting assembly provided by the embodiment of the present utility model Figure 3 ;

[0031] Figure 4 Exploded view of the second embodiment of the corner fitting assembly provided by the embodiment of the present utility model;

[0032] Figure 5 Structural schematic diagram of the second embodiment of the corner fitting assembly provided by the embodiment of the present utility model Figure 4 ;

[0033] Figure 6 Schematic diagram of the third implementation manner of the corner code component provided by the embodiment of the present utility model Figure 1 ;

[0034] Figure 7 Schematic diagram of the third implementation manner of the corner code component provided by the embodiment of the present utility model Figure 2 ;

[0035] Figure 8 Schematic diagram of the third implementation manner of the corner code component provided by the embodiment of the present utility model Figure 3 ;

[0036] Figure 9 Schematic diagram of the third implementation manner of the corner code component provided by the embodiment of the present utility model Figure 4 ;

[0037] Figure 10 Schematic diagram of the fifth implementation manner of the corner code component provided by the embodiment of the present utility model Figure 1 ;

[0038] Figure 11 Schematic diagram of the fifth implementation manner of the corner code component provided by the embodiment of the present utility model Figure 2 ;

[0039] Figure 12 Schematic diagram of the fifth implementation manner of the corner code component provided by the embodiment of the present utility model Figure 3 ;

[0040] Figure 13 Schematic diagram of the structure of the second corner code in the fifth implementation manner of the corner code component provided by the embodiment of the present utility model;

[0041] Figure 14 Schematic diagram of the structure of the first corner code in the fifth implementation manner of the corner code component provided by the embodiment of the present utility model;

[0042] Figure 15 Schematic diagram of the fifth implementation manner of the corner code component provided by the embodiment of the present utility model Figure 4 ;

[0043] Figure 16 Schematic diagram of the sixth implementation manner of the corner code component provided by the embodiment of the present utility model Figure 1 ;

[0044] Figure 17 Schematic diagram of the sixth implementation manner of the corner code component provided by the embodiment of the present utility model Figure 2 ;

[0045] Figure 18Schematic diagram of a partial structure of the sixth embodiment of the angle code component provided by the embodiment of the present utility model;

[0046] Figure 19 Schematic diagram of the structure of the sixth embodiment of the angle code component provided by the embodiment of the present utility model Figure 3 .

[0047] Icon:

[0048] 100 - First angle code; 110 - First fixing part; 120 - First connecting part; 130 - First notch;

[0049] 200 - Second angle code; 210 - Second fixing part; 220 - Second connecting part; 230 - Second notch; 221 - Connecting groove;

[0050] 310 - Positioning pin; 311 - Limiting protrusion; 320 - Positioning hole; 321 - Limiting groove;

[0051] 410 - Positioning column; 411 - Positioning protrusion; 420 - Limiting hole; 421 - Positioning groove;

[0052] 510 - Tooth-shaped surface; 520 - Fastener. Specific embodiments

[0053] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0054] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0055] It should be noted that: like reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0056] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0057] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0058] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0059] The following will describe in detail some embodiments of the present utility model with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0060] There are more than a hundred types of corner codes used for corner assembling of current doors, windows and various outdoor decorative pipe groups classified according to size and shape. However, most of them are common 90-degree angles classified according to angles, and there is no corner code that can arbitrarily change the angle according to the shape of the corner assembling. However, only by using corner codes that can form multiple angles for corner assembling can the requirements of customers be met.

[0061] In view of this, the corner fitting assembly provided by the embodiment of the present utility model includes a first corner fitting 100, a second corner fitting 200 and a fixing structure; the first corner fitting 100 includes a first fixing portion 110 and a first connecting portion 120, the first fixing portion 110 is connected to the first connecting portion 120, and the thickness of the first fixing portion 110 is less than the thickness of the first connecting portion 120, so that a first notch 130 is formed between the first fixing portion 110 and the first connecting portion 120; the second corner fitting 200 includes a second fixing portion 210 and a second connecting portion 220, the second fixing portion 210 is connected to the second connecting portion 220, and the thickness of the second fixing portion 210 is less than the thickness of the second connecting portion 220, so that a second notch 230 is formed between the second fixing portion 210 and the second connecting portion 220; the first fixing portion 110 and the second fixing portion 210 are adjustably connected through the fixing structure, and the bottom wall of the first notch 130 is attached to the bottom wall of the second notch 230. Wherein, the adjustable connection means that the angle between the first corner fitting 100 and the second corner fitting 200 can be adjusted before connection and the first corner fitting 100 and the second corner fitting 200 are connected according to the adjusted angle. The first fixing portion 110 and the second fixing portion 210 are adjustably connected to realize the adjustable connection of the first corner fitting 100 and the second corner fitting 200; the first connecting portion 120 and the second connecting portion 220 are used to connect profiles, realizing the connection of two profiles, and the angle between the two profiles is not limited to 90 degrees.

[0062] In an alternative embodiment of the present utility model, one side of the first fixing portion 110 is flush with one side of the first connecting portion 120, and the other side of the first fixing portion 110 is lower than the other side of the first connecting portion 120, forming a first notch 130; one side of the second fixing portion 210 is flush with one side of the second connecting portion 220, and the other side of the second fixing portion 210 is lower than the other side of the second connecting portion 220, forming a second notch 230.

[0063] Specifically, referring to Figures 1 to 19 , the outer walls of the first fixing portion 110 and the second fixing portion 210 are both circular, and the first connecting portion 120 and the second connecting portion 220 are irregular polygons.

[0064] Taking Figure 1 as an example, the first corner fitting 100 is located above, the second corner fitting 200 is located below, the first fixing portion 110 of the first corner fitting 100 is located in the second notch 230, and the second fixing portion 210 of the second corner fitting 200 is located in the first notch 130. The upper surface of the first fixing portion 110 is flush with the upper surface of the first connecting portion 120, and the lower surface of the second fixing portion 210 is flush with the lower surface of the second connecting portion 220, so that the upper and lower sides of the corner fitting assembly are flush, avoiding the problem of large space occupation of the corner fitting assembly.

[0065] In an alternative embodiment of the present utility model, connection grooves 221 are provided on the side walls of the first connection portion 120 and the second connection portion 220.

[0066] Specifically, when using this corner fitting assembly, first assemble the first fixing portion 110 and the second fixing portion 210 at a set angle, and then connect the first connecting member and the second connecting member to the profiles for corner assembly.

[0067] The first connecting member and the second connecting member are connected to the profile by screws.

[0068] The screw passes through the side wall of the profile and then connects to the connection groove 221.

[0069] The shape and structure of the fixing structure are described in detail below:

[0070] The first implementation manner of the fixing structure: The first corner fitting 100 and the second corner fitting 200 are the same. The fixing structure includes a pin and a fixing hole; fixing holes are provided on both the first fixing portion 110 and the second fixing portion 210, and the pin is sequentially inserted into the fixing holes of the first fixing portion 110 and the second fixing portion 210, and the pin is in interference fit with the fixing hole.

[0071] Specifically, the first corner fitting 100 and the second corner fitting 200 being the same means that the first corner fitting 100 and the second corner fitting 200 are completely identical, and there is no need to distinguish left and right or up and down during use.

[0072] The interference fit between the pin and the fixing hole realizes the connection and fixation of the first fixing portion 110 and the second fixing portion 210 at a preset angle.

[0073] The second implementation manner of the fixing structure is as follows, see Figures 1 to 5 , the first corner fitting 100 and the second corner fitting 200 are the same. The fixing structure includes a positioning pin 310 and a positioning hole 320. A plurality of limiting protrusions 311 are provided on the outer wall of the positioning pin 310 at intervals along the circumferential direction of the positioning pin 310, and a plurality of limiting grooves 321 are provided on the inner wall of the positioning hole 320 at intervals along the circumferential direction of the positioning hole 320. The number of the limiting grooves 321 is equal to or greater than the number of the limiting protrusions 311; positioning holes 320 are provided on both the first fixing portion 110 and the second fixing portion 210, and the positioning pin 310 is sequentially inserted into the positioning holes 320 of the first fixing portion 110 and the second fixing portion 210, and the limiting protrusions 311 are correspondingly inserted into the limiting grooves 321.

[0074] Specifically, the fact that the first corner code 100 and the second corner code 200 are the same means that the first corner code 100 and the second corner code 200 are exactly the same, and there is no need to distinguish left and right or up and down during use. When assembling the corner code assembly, align the limiting grooves 321 of the first corner code 100 and the second corner code 200, then make the limiting protrusions 311 of the positioning pin 310 correspond to the positions of the limiting grooves 321, and finally insert the positioning pin 310 into the positioning hole 320. By adjusting the connection between the limiting groove 321 of the first corner code 100 and different limiting grooves 321 of the second corner code 200, the adjustment of the angle between the first corner code 100 and the second corner code 200 is realized.

[0075] The positioning pin 310 is inserted into the positioning hole 320 to realize the assembly of the corner code assembly.

[0076] Furthermore, the included angle between two adjacent limiting protrusions 311 is an integer multiple of the included angle between two adjacent limiting grooves 321.

[0077] Specifically, referring to Figure 5 , the included angle between two adjacent limiting protrusions 311 is set to 90 degrees, the included angle between two adjacent limiting grooves 321 is set to 45 degrees, and the included angle between two adjacent limiting protrusions 311 is 2 times the included angle between two adjacent limiting grooves 321; in this way, the position of the limiting protrusion 311 can be matched with the position of the limiting groove 321, and the angle between the first corner code 100 and the second corner code 200 can be set to 45 degrees, 90 degrees, 135 degrees or 180 degrees. Of course, other multiples of the included angle between two adjacent limiting protrusions 311 to the included angle between two adjacent limiting grooves 321 should also be within the protection scope of the embodiments of the present invention.

[0078] For the third implementation manner of the fixing structure, referring to Figures 6 to 9 , the first corner code 100 and the second corner code 200 are the same. The fixing structure includes a toothed surface 510 and a fastener 520; toothed surfaces 510 are provided on the bottom walls of the first notch 130 and the second notch 230, and the toothed surface 510 of the first notch 130 meshes with the toothed surface 510 of the second notch 230; the fastener 520 sequentially passes through the first fixing portion 110 and the second fixing portion 210.

[0079] Specifically, after machining and milling, the bottom walls of the first notch 130 and the second notch 230 are both toothed surfaces 510; the two toothed surfaces 510 mesh to improve the connection strength between them. And in this embodiment, the minimum angle adjustment between the first corner code 100 and the second corner code 200 is 10 degrees, that is, the adjustment can be made in multiples of 10 degrees. The fastener 520 can be set as a bolt and a nut, and the bolt passes through the first fixing portion 110 and the second fixing portion 210 and then is connected to the nut.

[0080] The toothed surface 510 enhances the connection strength between the first fixing part 110 and the second fixing part 210.

[0081] The fourth implementation of the fixing structure, the fixing structure includes a positioning post 410 provided on the bottom wall of the first notch 130 and a limiting hole 420 provided on the second fixing part 210; the positioning post 410 is inserted into the limiting hole 420.

[0082] Specifically, the positioning post 410 and the limiting hole 420 are in interference fit, and an adhesive can be added between the two during actual use to enhance the connection effect. The positioning post 410 is integrally formed with the first fixing part 110.

[0083] Through the connection between the positioning post 410 and the limiting hole 420, the connection between the first corner fitting 100 and the second corner fitting 200 is realized.

[0084] The fifth implementation of the fixing structure, see Figures 10 to 15 , a plurality of positioning protrusions 411 are arranged at intervals along the circumferential direction of the positioning post 410 on the outer wall of the positioning post 410, a plurality of positioning grooves 421 are arranged at intervals along the circumferential direction of the limiting hole 420 on the inner wall of the limiting hole 420, and the number of the positioning protrusions 411 matches the number of the positioning grooves 421; the positioning post 410 is inserted into the limiting hole 420, and the positioning protrusions 411 are inserted into the positioning grooves 421.

[0085] Specifically, the positioning post 410 is inserted into the limiting hole 420, and screws are no longer used for fixing, and an appropriate amount of adhesive can be added. The number of the positioning protrusions 411 is equal to the number of the positioning grooves 421, and the angle between two adjacent positioning protrusions 411 is set to 45 degrees; see Figure 15 , the angle between the first corner fitting 100 and the second corner fitting 200 can be set to 45 degrees, 90 degrees, 135 degrees or 180 degrees.

[0086] The sixth implementation of the fixing structure, see Figures 16 to 19 , a plurality of positioning protrusions 411 are arranged at intervals along the circumferential direction of the positioning post 410 on the outer wall of the positioning post 410, a plurality of positioning grooves 421 are arranged at intervals along the circumferential direction of the limiting hole 420 on the inner wall of the limiting hole 420, and the number of the positioning protrusions 411 matches the number of the positioning grooves 421; the positioning post 410 is inserted into the limiting hole 420, and the positioning protrusions 411 are inserted into the positioning grooves 421.

[0087] Specifically, the positioning post 410 is inserted into the limiting hole 420, and screws are no longer used for fixing, and an appropriate amount of adhesive can be added. The number of the positioning protrusions 411 is equal to the number of the positioning grooves 421, and the angle between two adjacent positioning protrusions 411 is set to 10 degrees; see Figure 19, the minimum angle adjustment between the first corner code 100 and the second corner code 200 is 10 degrees, that is, the adjustment can be made in multiples of 10 degrees.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An angle code assembly, characterized in that: include: A first angle code (100), a second angle code (200) and a fixing structure; The first angle code (100) comprises a first fixing portion (110) and a first connecting portion (120), the first fixing portion (110) being connected to the first connecting portion (120), the thickness of the first fixing portion (110) being smaller than the thickness of the first connecting portion (120), so that a first gap (130) is formed between the first fixing portion (110) and the first connecting portion (120); The second angle code (200) comprises a second fixing portion (210) and a second connecting portion (220), the second fixing portion (210) being connected to the second connecting portion (220), and the thickness of the second fixing portion (210) being smaller than the thickness of the second connecting portion (220), so that a second gap (230) is formed between the second fixing portion (210) and the second connecting portion (220); The first fixing portion (110) and the second fixing portion (210) are adjustably connected via the fixing structure, and the bottom wall of the first notch (130) fits the bottom wall of the second notch (230).

2. The angle code assembly according to claim 1, characterized in that: The first angle code (100) and the second angle code (200) are the same.

3. The angle code assembly according to claim 2, characterized in that: The fixing structure includes a pin and a fixing hole; The first fixing part (110) and the second fixing part (210) are both provided with the fixing holes, and the pins are inserted into the fixing holes of the first fixing part (110) and the fixing holes of the second fixing part (210) in sequence, and the pins are interference fit with the fixing holes.

4. The angle code assembly according to claim 2, characterized in that: The fixing structure comprises a positioning pin (310) and a positioning hole (320), the outer wall of the positioning pin (310) is provided with a plurality of limiting protrusions (311) arranged at intervals along the circumference of the positioning pin (310), and the inner wall of the positioning hole (320) is provided with a plurality of limiting grooves (321) arranged at intervals along the circumference of the positioning hole (320), and the number of the limiting grooves (321) is equal to or greater than the number of the limiting protrusions (311); The first fixing portion (110) and the second fixing portion (210) are both provided with the positioning hole (320), the positioning pin (310) is inserted into the positioning hole (320) of the first fixing portion (110) and the positioning hole (320) of the second fixing portion (210) in sequence, and the limiting protrusion (311) is correspondingly inserted into the limiting groove (321).

5. The angle code assembly according to claim 4, characterized in that: The angle between two adjacent limiting protrusions (311) is an integer multiple of the angle between two adjacent limiting grooves (321).

6. The angle code assembly according to claim 1, characterized in that: The fixing structure comprises a positioning column (410) provided on the bottom wall of the first notch (130), and a limiting hole (420) provided on the second fixing portion (210); The positioning column (410) is inserted into the limiting hole (420).

7. The angle code assembly according to claim 6, characterized in that: The outer wall of the positioning column (410) is provided with a plurality of positioning protrusions (411) arranged at intervals along the circumference of the positioning column (410), and the inner wall of the limiting hole (420) is provided with a plurality of positioning grooves (421) arranged at intervals along the circumference of the limiting hole (420), and the number of the positioning protrusions (411) matches the number of the positioning grooves (421); The positioning column (410) is inserted into the limiting hole (420), and the positioning protrusion (411) is inserted into the positioning groove (421).

8. The angle code assembly according to claim 2, characterized in that: The fixing structure comprises a toothed surface (510) and a fastener (520); The bottom wall of the first notch (130) and the bottom wall of the second notch (230) are both provided with the toothed surface (510), and the toothed surface (510) of the first notch (130) is meshed with the toothed surface (510) of the second notch (230); The fastener (520) passes through the first fixing portion (110) and the second fixing portion (210) in sequence.

9. The angle code assembly according to any one of claims 1 to 8, characterized in that: One side of the first fixing portion (110) is flush with one side of the first connecting portion (120), and the other side of the first fixing portion (110) is lower than the other side of the first connecting portion (120), forming the first notch (130); One side of the second fixing portion (210) is flush with one side of the second connecting portion (220), and the other side of the second fixing portion (210) is lower than the other side of the second connecting portion (220), thereby forming the second notch (230).

10. The angle code assembly according to any one of claims 1 to 8, characterized in that: The side wall of the first connecting portion (120) and the side wall of the second connecting portion (220) are both provided with a connecting groove (221).

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