Multi-layer combined and assembled glue injection corner connector

Abstract

The utility model discloses a multi-layer combined and assembled glue injection corner connector which comprises two corner connector base bodies and an interlayer piece clamped between the two corner connector base bodies, and the interlayer piece comprises a first interlayer corner connector and a second interlayer corner connector which are spliced and folded. The opposite faces of the first interlayer corner connector and the second interlayer corner connector are folded to form at least one glue injection hole, at least one flow guide channel, at least one inner glue guide channel and at least one outer glue guide channel, and the first interlayer corner connector and the second interlayer corner connector are each provided with an interlayer flow guide hole which extends and penetrates through the two side faces and is communicated with the flow guide channel. Each corner connector base body is provided with base body flow guide holes which extend to the two side faces in a penetrating mode and are aligned and communicated with the interlayer flow guide holes, the outer side face of each corner connector base body is provided with a face glue containing groove communicated with the corresponding base body flow guide hole, and the two ends of each face glue containing groove extend to the inner corner position and the outer corner position of the corresponding corner connector base body in a penetrating mode respectively. And high strength, anti-loosening property and full-sealing property are realized.

Description

Technical Field

[0001] This utility model relates to the technical field of corner code structures, and in particular to a multi-layer assembled glued corner code. Background Technology

[0002] Traditional aluminum alloy profile splicing often uses corner brackets for connection, with adhesive injected between the corner bracket and the profile to improve sealing and strength. In existing technologies, corner brackets are mostly single-structure or simple layered designs, as disclosed in existing patents CN218265645U, CN216406593U, and CN222253703U. These corner bracket structures have a single adhesive injection channel layout, resulting in low injection efficiency, uneven adhesive distribution, and a tendency for localized leakage or insufficient filling. Furthermore, traditional corner brackets lack splicing stability, and loosening after adhesive injection can affect the sealing effect. Therefore, there is an urgent need for a corner bracket structure that can achieve multi-layer bonding, optimized adhesive injection paths, and a stable structure. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-layer assembled glue injection corner bracket. Through multi-layer interlocking design and optimized glue injection channel layout, it solves the problems of uneven glue injection, loose splicing and poor sealing in the prior art, and achieves efficient filling, high-strength sealing and stable connection.

[0004] To achieve the above objectives, this utility model provides a multi-layer assembled glue-filling corner bracket, comprising two corner bracket bases and a sandwich component sandwiched between the two corner bracket bases. The sandwich component includes a first sandwich corner bracket and a second sandwich corner bracket that are joined together. The opposing surfaces of the first and second sandwich corner brackets, when joined together, form at least one glue-filling hole, at least one flow channel, and at least one external glue-leading channel. The opening of the glue-filling hole extends towards the outer corner end face of the sandwich component. One end of the flow channel communicates with the glue-filling hole, and the flow channel… The other end of the channel is connected to the external adhesive channel, which extends through to the outer corner of the sandwich component; the first sandwich corner code and the second sandwich corner code are both provided with sandwich guide holes that extend through to both sides and communicate with the guide channel; each corner code substrate is provided with a substrate guide hole that extends through to both sides and is aligned with and communicates with the sandwich guide hole; each corner code substrate has a surface adhesive groove on its outer side that communicates with the substrate guide hole, and the two ends of the surface adhesive groove extend through to the inner corner and outer corner of the corner code substrate, respectively.

[0005] Furthermore, when the opposing surfaces of the first interlayer corner bracket and the second interlayer corner bracket are joined together, at least one internal adhesive channel communicating with the guide channel is formed, wherein the end of the internal adhesive channel extends through to the inner corner of the interlayer component.

[0006] Furthermore, the outer surfaces of both the first and second sandwich corner brackets are protruding and formed with snap-fit ​​portions that can be fitted into the hollow cavities pre-set in the adjacent corner bracket bases.

[0007] Furthermore, at least one partial location on the side of the snap-fit ​​portion is formed with a wavy top contact portion that presses against the inner wall of the hollow cavity.

[0008] Furthermore, the opposing surfaces of the first and second interlayer corner brackets are respectively formed with a first joining portion and a second joining portion, wherein the first joining portion and the second joining portion are assembled and cooperated with each other to bring the first and second interlayer corner brackets together to form an interlayer component.

[0009] Furthermore, at least one elastic buckle is formed on the first and / or second interlayer corner brackets, wherein when the first and second interlayer corner brackets are closed, the elastic buckle is elastically engaged with the opposite first / second interlayer corner bracket.

[0010] Furthermore, at least one partial location on the side of the first joining portion is formed with a protruding apex that abuts and engages with the second joining portion, and / or at least one partial location on the side of the second joining portion is formed with a protruding apex that abuts and engages with the first joining portion.

[0011] Furthermore, the inner corner of both the first and second interlayer corner brackets is formed with at least one interlayer adhesive groove extending through both sides and communicating with the inner adhesive channel.

[0012] Furthermore, the outer surfaces of the first and second interlayer corner brackets are each provided with a filling channel that extends through to the inner and outer corners of the interlayer component and communicates with the interlayer guide hole.

[0013] Furthermore, each of the corner bracket substrates has at least one substrate adhesive groove formed at its inner corner, extending through both sides and communicating with the surface adhesive groove, wherein the substrate adhesive groove communicates with the adjacent interlayer adhesive groove.

[0014] The present invention adopts the above-mentioned solution, and its beneficial effects are as follows: 1) Four-layer adhesive structure: Through the multi-layer adhesive bonding of the interlayer component and the two corner bracket substrates, the overall strength and sealing performance are significantly improved; 2) Bidirectional adhesive injection path: The symmetrically distributed adhesive injection holes and guide channels support adhesive injection at any hole position, and the adhesive can flow in both directions, with high filling efficiency and no dead corners; 3) Anti-loosening design: The interlocking of the protruding top of the splicing part and the alignment design of the interlayer guide holes and the guide holes of the substrate ensure the stability of the structure; 4) All-round sealing: The adhesive covers the inner / outer corners, the surface adhesive groove and the void-avoiding top groove, completely eliminating the risk of water leakage. Attached Figure Description

[0015] Figure 1-2This is a schematic diagram of the glued corner bracket in Example 1.

[0016] Figure 3 This is an exploded view of the glued corner bracket in Example 1.

[0017] Figure 4 This is an exploded view of the sandwich panel in Example 1.

[0018] Figure 5 for Figure 4 A magnified view of part A in the middle.

[0019] Figure 6 This is a schematic diagram showing the flow of the filler adhesive between the first interlayer corner bracket 21 and the second interlayer corner bracket 22 in Example 1.

[0020] Figure 7 This is a schematic diagram of the flow of filler adhesive along the interlayer guide holes and filler channels in Example 1.

[0021] Figure 8 This is a schematic diagram of the flow of the filler adhesive on the corner code substrate in Example 1.

[0022] Figure 9 This is a schematic diagram of the glued corner bracket in Example 2.

[0023] Figure 10 This is an exploded view of the glued corner bracket in Example 2.

[0024] Figure 11 This is a schematic diagram of the sandwich panel in Embodiment 2.

[0025] Figure 12 This is a schematic diagram of the flow of filler adhesive along the interlayer guide holes and filler channels in Example 2.

[0026] Among them, 1-corner code substrate, 11-substrate flow hole, 12-surface adhesive groove, 13-substrate adhesive groove, 14-top block, 2-interlayer component, 21-first interlayer corner code, 22-second interlayer corner code, 23-injection hole, 24-outer adhesive channel, 25-inner adhesive channel, 26-filling channel, 27-interlayer adhesive groove, 28-flow channel, 29-interlayer flow hole, 30-clamping part, 401-protruding tip, 5-elastic buckle. Detailed Implementation

[0027] To more fully illustrate this utility model, a detailed description will be provided below in conjunction with the accompanying drawings. The drawings depict preferred embodiments of this utility model. However, it is worth noting that this utility model is not limited to these specific forms and can be implemented in various ways. These embodiments are provided to enable the reader to gain a deeper understanding of this utility model. Example 1

[0028] As attached Figure 1-8 As shown, in this embodiment, a multi-layer assembled glued corner bracket includes two corner bracket bases 1 and a sandwich member 2 sandwiched between the two corner bracket bases 1. The sandwich member 2 includes a first sandwich corner bracket 21 and a second sandwich corner bracket 22 assembled together. Specifically, the corner bracket base 1, the first sandwich corner bracket 21 and the second sandwich corner bracket 22 have nearly identical shapes and each has two vertically distributed "L"-shaped support arms. The corner bracket base 1 is made of extruded aluminum material, and the first sandwich corner bracket 21 and the second sandwich corner bracket 22 are made by die casting.

[0029] In this embodiment, the opposing surfaces of the first interlayer corner bracket 21 and the second interlayer corner bracket 22 are joined to form two glue injection holes 23, two flow channels 28, two inner glue-leading channels 25 and two outer glue-leading channels 24. That is, each arm of the first interlayer corner bracket 21 and the second interlayer corner bracket 22 is provided with a glue injection hole 23, a flow channel 28, an inner glue-leading channel 25 and an outer glue-leading channel 24. The glue injection holes 23, flow channels 28, inner glue-leading channels 25 and outer glue-leading channels 24 between the two arms are symmetrically arranged with the angle bisector as the axis.

[0030] In this embodiment, the injection hole 23 extends towards the outer corner end face of the sandwich component 2. The opening here faces outward to facilitate the insertion of screws and the injection of adhesive. Since the first sandwich corner bracket 21 and the second sandwich corner bracket 22 in this embodiment are joined together to form two injection holes 23, in actual operation, the worker can select any one of the injection holes 23 to complete the injection of adhesive.

[0031] In this embodiment, one end of the flow channel 28 is connected to the injection hole 23, and the other end of the flow channel 28 is connected to the inner glue channel 25 and the outer glue channel 24 respectively. The inner glue channel 25 and the outer glue channel 24 extend through to the inner corner and the outer corner of the sandwich member 2 respectively. Thus, the filler glue injected from the injection hole 23 can flow into the inner glue channel 25 and the outer glue channel 24 through the flow channel 28 respectively, and then flow out along the inner glue channel 25 and the outer glue channel 24 to the inner corner and the outer corner of the sandwich member 2 respectively, until the filler glue fills the inner corner and the outer corner of the sandwich member 2.

[0032] In this embodiment, the opposing surfaces of the first interlayer corner bracket 21 and the second interlayer corner bracket 22 are respectively formed with a first joining portion and a second joining portion. The first joining portion and the second joining portion in this embodiment can be block-shaped structures or groove-shaped structures, and the first joining portion and the second joining portion are mutually staggered and interlocked so that when the first interlayer corner bracket 21 and the second interlayer corner bracket 22 are assembled together, the first joining portion and the second joining portion can be relatively staggered and interlocked. Furthermore, a plurality of half-hole positions and half-grooves are formed on the opposing surfaces of the first interlayer corner bracket 21 and the second interlayer corner bracket 22. These half-hole positions and half-grooves correspondingly close together to form an injection hole 23, a guide channel 28, an inner adhesive channel 25, and an outer adhesive channel 24.

[0033] Furthermore, at least one partial location on the side of the first splicing part is formed with a raised apex 401 that abuts and engages with the second splicing part, and / or at least one partial location on the side of the second splicing part is formed with a raised apex 401 that abuts and engages with the first splicing part. That is, a raised apex 401 (which may be hemispherical) is formed on the inner wall of the groove structure of the first splicing part and / or the second splicing part. Every two raised apex 401s are arranged as a group and the two raised apex 401s in the same group are arranged facing each other, so as to press and engage with the inner wall of the block structure in the groove structure, thereby achieving a fastening effect, improving the stability of the splicing of the first interlayer corner bracket 21 and the second interlayer corner bracket 22, and effectively preventing the splicing from loosening.

[0034] In this embodiment, at least one adhesive groove extending through both sides and communicating with the inner adhesive channel 25 is formed at the inner corner of both the first interlayer corner bracket 21 and the second interlayer corner bracket 22. The adhesive groove on the same interlayer corner bracket can simultaneously communicate with the inner adhesive channel 25 located on both arms, allowing filler adhesive from both inner adhesive channels 25 to flow into the same adhesive groove simultaneously. Furthermore, the adhesive groove extends along the thickness direction of the first interlayer corner bracket 21 and the second interlayer corner bracket 22 to both sides.

[0035] In this embodiment, both the first interlayer corner bracket 21 and the second interlayer corner bracket 22 are provided with interlayer flow guide holes 29 extending through both sides and communicating with the flow guide channel 28 (the interlayer flow guide holes 29 are arranged to extend along the thickness direction). The two flow guide channels 28 located on the two arms of the first interlayer corner bracket 21 and the second interlayer corner bracket 22 are simultaneously connected to the same interlayer flow guide hole 29. When filler glue is injected from one of the glue injection holes 23, the filler glue can flow along the flow guide channel 28 on one of the arms to the interlayer flow guide hole 29. At this time, the filler glue flowing into the interlayer flow guide hole 29 can not only flow along the interlayer flow guide hole 29 to both sides of the first interlayer corner bracket 21 / second interlayer corner bracket 22, but also flow to the flow guide channel 28 located on the other arm, so that the filler glue can flow along the flow guide channel 28 to the inner glue guide channel 25, the outer glue guide channel 24 and the glue injection hole 23 of the same arm respectively.

[0036] In this embodiment, each corner code substrate 1 is provided with a substrate guide hole 11 extending through both sides and aligned with and communicating with the interlayer guide hole 29 (the substrate guide hole 11 is arranged to extend along the thickness direction). Each corner code substrate 1 has a surface adhesive groove 12 communicating with the substrate guide hole 11 on its outer side, and the two ends of the surface adhesive groove 12 extend through to the inner corner and outer corner of the corner code substrate 1, respectively. Thus, the filling adhesive in the interlayer guide hole 29 can flow into the substrate guide hole 11 of the two corner code substrates 1 from both ends, and then the filling adhesive flows out from the substrate guide hole 11 to the surface adhesive groove 12 on the outer side of each corner code substrate 1. Finally, the filling adhesive flows into the inner corner and outer corner of the corner code substrate 1 along the surface adhesive groove 12, until the filling adhesive fills the inner groove, corner, and outer corner of the surface adhesive of the two corner code substrates 1.

[0037] Furthermore, the face glue groove 12 extends along the angle bisector direction of the corner code substrate 1.

[0038] In this embodiment, each corner bracket substrate 1 has at least one substrate adhesive groove 13 formed at its inner corner, extending through both sides and communicating with the surface adhesive groove 12. The substrate adhesive groove 13 communicates with the adjacent interlayer adhesive groove 27. Preferably, this embodiment provides two parallel substrate adhesive grooves 13 at the inner corner of each corner bracket substrate 1. Both substrate adhesive grooves 13 of the same corner bracket substrate 1 are connected to an adjacent interlayer adhesive, allowing the filler adhesive from the two inner adhesive channels 25 to flow into the interlayer adhesive and then into the two substrate adhesive grooves 13 respectively. Furthermore, considering the actual filling effect of the filler adhesive, the two substrate adhesive grooves 13 on the same corner bracket substrate 1 are not completely separated; they can be partially connected to each other, allowing the flowing filler adhesive to flow into the other substrate adhesive groove 13, improving the filling effect and eliminating corner gaps.

[0039] Furthermore, each corner bracket base 1 has a protruding top block 14 with a clearance groove at its inner corner. When the glued corner bracket is installed onto the profile, the clearance groove of the top block 14 is used to hold the beveled corner of the adjacent profile, making the splicing of the profiles more seamless. In addition, the two substrate adhesive grooves 13 of the same corner bracket base 1 are located on both sides of the top block 14. The filler adhesive in the substrate adhesive grooves 13 can flow into the clearance groove, thereby filling the clearance groove with filler adhesive and avoiding the risk of water seepage after the aluminum material is spliced.

[0040] In this embodiment, the outer surfaces of the first interlayer corner bracket 21 and the second interlayer corner bracket 22 (i.e., the outer surfaces refer to the contact surfaces between the first interlayer corner bracket 21 and the second interlayer corner bracket 22 and the corner bracket base 1) are each provided with a filling channel 26 extending through to the inner and outer corner positions of the interlayer component 2 and communicating with the interlayer guide hole 29. Thus, the filling adhesive in the interlayer guide hole 29 flows into the filling channel 26, thereby filling the filling channel 26 with filling adhesive until it flows out to the inner and outer corner positions of the interlayer component 2. In this way, the first interlayer corner bracket 21 and the second interlayer corner bracket 22 can be bonded to the adjacent corner bracket base 1 to form a whole, improving the overall strength.

[0041] To facilitate understanding, the following explanations will be provided in conjunction with the specific installation process and adhesive application procedure.

[0042] Assemble the corner brackets: First, the first and second splicing parts are assembled together to bring together the first sandwich corner bracket 21 and the second sandwich corner bracket 22 to form the sandwich component 2. Then, the snap-fit ​​part 30 is fitted into the hollow cavity of the corner bracket base 1 to fix the two corner bracket bases 1 on both sides of the sandwich component 2. Finally, the two arms of the assembled glue-injecting corner bracket are respectively fitted into the ports of the two profiles (at this time, the profiles and glue-injecting corner brackets can be locked and fixed by hollow screws. At the same time, after the hollow screws are screwed into the glue injection hole 23, they will push against the first sandwich corner bracket 21 and the second sandwich corner bracket 22, thereby causing the two corner bracket bases 1 to open up and touch the inner wall of the profile, achieving the expansion effect).

[0043] See appendix Figure 6-8As shown, the glue injection operation is as follows: Filler glue is injected through one of the injection holes 23. The filler glue flows through the same-side guide channel 28 to the same-side inner glue channel 25, outer glue channel 24, and interlayer guide hole 29. Specifically, the filler glue in the inner glue channel 25 flows towards the inner corner of the interlayer component 2 (corresponding to flowing into the interlayer glue receiving groove 27), thus causing the filler glue in the interlayer glue receiving groove 27 to flow to the substrate glue receiving groove 13 of the two corner bracket substrates 1. The filler glue in the outer glue channel 24 flows towards the outer corner of the interlayer component 2 (the filler glue here fills the gap between the interlayer component 2 and the profile at the outer corner). At this time, some of the filler glue in the interlayer guide hole 29 flows to the glue filling channel 26 and the guide channel 28 on the other side, while the other part flows out along the interlayer guide hole 29. The substrate guide hole 11 of the two corner bracket substrates 1; the filler glue in the guide channel 28 on the other side flows to the inner glue channel 25, the outer glue channel 24 and the injection hole 23 on the other side respectively (similarly, the filler glue in the inner glue channel 25 and the outer glue channel 24 will flow to the inner corner and the outer corner of the sandwich component 2 respectively, while the filler glue in the injection hole 23 will flow out to the outside of the profile after it is filled); in addition, the filler glue in the substrate guide hole 11 will flow to the communicating surface glue groove 12, and then the filler glue in the surface glue groove 12 will flow to the inner corner and the outer corner of the corner bracket substrate 1 (part of the filler glue here will flow along the surface glue groove 12 to the substrate glue groove 13 at the inner corner, and the other part of the filler glue will flow to the outer corner to fill the gap between the corner bracket substrate 1 profiles). Ultimately, the filler adhesive will fill and cover the gaps on the inner and outer surfaces of the profile, corner bracket base 1, and sandwich component 2, forming a four-layer adhesive structure (first sandwich corner bracket 21, second sandwich corner bracket 22, and two corner bracket bases 1), achieving high-strength sealing and improving overall strength and waterproofness. Example 2

[0044] See appendix Figure 9-12As shown, the difference between this embodiment and embodiment one is that the first interlayer corner bracket 21 and the second interlayer corner bracket 22 are made of plastic. Therefore, due to the influence of material strength, the assembly structure of this embodiment two differs from that of embodiment one. In addition to the first and second joining parts protruding on the opposite surfaces of the first interlayer corner bracket 21 and the second interlayer corner bracket 22, at least one elastic buckle is formed on the first interlayer corner bracket 21 and / or the second interlayer corner bracket 22. For ease of explanation, the first interlayer corner bracket 21 and the second interlayer corner bracket 22 are referred to as the first interlayer corner bracket 21 and / or the second interlayer corner bracket 22. Each of the two clips 22 has two elastic buckles, which are staggered. When the first interlayer corner clip 21 and the second interlayer corner clip 22 are closed, they are not only assembled and cooperated through the first and second splicing parts, but also elastically engaged with the opposite first interlayer corner clip 21 / second interlayer corner clip 22 through the elastic buckles. That is, the side edges of the first interlayer corner clip 21 / second interlayer corner clip 22 are formed with stepped locking positions for the elastic buckles to engage. Thus, the rapid splicing and closing between the first interlayer corner clip 21 and the second interlayer corner clip 22 is achieved.

[0045] In this embodiment, the sidewall of the glue injection hole 23 formed by the first interlayer corner bracket 21 and the second interlayer corner bracket 22 is partially hollowed out, so that when the hollow screw is screwed into the glue injection hole 23, the hollow screw directly contacts the inner side of the two corner bracket bases 1, thereby allowing the hollow screw to directly support the two corner bracket bases 1 and open up to contact the inner wall of the profile, achieving an expansion effect.

[0046] In this second embodiment, the inner glue channel 25 and the interlayer glue trough 27 are no longer provided. The filler glue injected by the glue injection hole 23 will flow along the guide channel 28 to the outer glue channel 24 and the interlayer guide hole 29 respectively. The remaining glue flow path is consistent with the glue flow path described in the first embodiment, and will not be described in detail here.

[0047] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any modifications or alterations made by those skilled in the art to the technical solution of this utility model without departing from its scope are equivalent embodiments of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from its scope should be covered within the protection scope of this utility model.

Claims

1. A multi-layer assembled glued corner bracket, characterized in that: The device includes two corner bracket bases (1) and a sandwich component (2) sandwiched between the two corner bracket bases (1). The sandwich component (2) includes a first sandwich corner bracket (21) and a second sandwich corner bracket (22) joined together. The opposing surfaces of the first sandwich corner bracket (21) and the second sandwich corner bracket (22) are joined together to form at least one glue injection hole (23), at least one flow channel (28), and at least one external glue channel (24). The opening of the glue injection hole (23) extends toward the outer corner end face of the sandwich component (2). One end of the flow channel (28) communicates with the glue injection hole (23), and the other end of the flow channel (28) communicates with the external glue channel (24). The outer adhesive channel (24) extends to the outer corner of the interlayer component (2); the first interlayer corner bracket (21) and the second interlayer corner bracket (22) are provided with interlayer guide holes (29) that extend to both sides and communicate with the guide channel (28); each corner bracket base (1) is provided with a base guide hole (11) that extends to both sides and is aligned with the interlayer guide hole (29); each corner bracket base (1) has a surface adhesive groove (12) that communicates with the base guide hole (11) on its outer side, and the two ends of the surface adhesive groove (12) extend to the inner corner and outer corner of the corner bracket base (1) respectively.

2. The multi-layer assembled glued corner bracket according to claim 1, characterized in that: When the opposite surfaces of the first interlayer corner bracket (21) and the second interlayer corner bracket (22) are joined together, at least one inner adhesive channel (25) communicating with the guide channel (28) is formed, wherein the end of the inner adhesive channel (25) extends through to the inner corner of the interlayer component (2).

3. The multi-layer assembled glued corner bracket according to claim 1, characterized in that: The outer surfaces of the first interlayer corner bracket (21) and the second interlayer corner bracket (22) are both formed with a snap-fit ​​part (30) that can fit into the hollow cavity of the adjacent corner bracket base (1).

4. The multi-layer assembled glued corner bracket according to claim 3, characterized in that: At least one local location on the side of the snap-fit ​​portion (30) is formed with a wavy top contact portion that presses against the inner wall of the hollow cavity.

5. A multi-layer assembled glued corner bracket according to claim 1, characterized in that: The first interlayer corner bracket (21) and the second interlayer corner bracket (22) have a first splicing part and a second splicing part protruding on their opposite sides, wherein the first splicing part and the second splicing part are assembled and cooperated with each other to make the first interlayer corner bracket (21) and the second interlayer corner bracket (22) close together to form an interlayer component (2).

6. The multi-layer assembled glued corner bracket according to claim 5, characterized in that: At least one elastic buckle (5) is formed on the first interlayer corner bracket (21) and / or the second interlayer corner bracket (22), wherein when the first interlayer corner bracket (21) and the second interlayer corner bracket (22) are closed, the elastic buckle (5) is elastically engaged with the first interlayer corner bracket (21) / second interlayer corner bracket (22) on the opposite side.

7. A multi-layer assembled glued corner bracket according to claim 5, characterized in that: At least one partial location on the side of the first splicing part is formed with a protruding vertex (401) that abuts and engages with the second splicing part, and / or at least one partial location on the side of the second splicing part is formed with a protruding vertex (401) that abuts and engages with the first splicing part.

8. The multi-layer assembled glued corner bracket according to claim 1, characterized in that: The inner corner of the first interlayer corner bracket (21) and the second interlayer corner bracket (22) are each formed with at least one interlayer adhesive groove (27) extending through both sides and communicating with the inner adhesive channel (25).

9. A multi-layer assembled glued corner bracket according to claim 8, characterized in that: The outer surfaces of the first interlayer corner bracket (21) and the second interlayer corner bracket (22) are provided with glue-filling channels (26) that extend through the inner corner and outer corner of the interlayer component (2) and communicate with the interlayer guide hole (29).

10. A multi-layer assembled glued corner bracket according to claim 8, characterized in that: Each of the corner bases (1) has at least one base adhesive groove (13) formed at its inner corner, which extends through both sides and communicates with the surface adhesive groove (12), wherein the base adhesive groove (13) communicates with the adjacent interlayer adhesive groove (27).

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