Invisible stainless steel connecting piece for profile connection

Abstract

The invention discloses a stainless steel invisible connecting piece for profile connection, and belongs to the technical field of connecting pieces. Comprising a connecting piece body, a first sectional material is arranged on the left side of the connecting piece body, a second sectional material is arranged on the right side of the connecting piece body, butt joint openings are formed in the left side and the right side of the connecting piece body, and butt joint blocks are fixedly connected to the right side of the first sectional material and the left side of the second sectional material; according to the invention, through the insertion matching of the butt joint block and the butt joint port and the clamping limiting of the wedge-shaped block and the clamping groove, the primary positioning of the section bar I and the section bar II can be quickly realized, and in the positioning process, a threaded hole in the butt joint block can be automatically and accurately aligned with a round hole in a groove opening, and manual repeated adjustment is not needed; and meanwhile, by matching with insertion guiding of the insertion blocks on the two sides of the connecting piece body and the through holes in the sectional material, the butt joint precision is further improved, and the positioning time before assembly is greatly shortened.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more particularly to a stainless steel concealed connector for profile connection. Background Technology

[0002] In many fields such as industrial manufacturing, home decoration, and building curtain walls, profiles are the core load-bearing and frame components. Their connection reliability, assembly efficiency, and appearance directly determine the overall product performance and quality. With the popularization of the modular assembly concept and the continuous improvement of consumers' requirements for product aesthetics, traditional exposed connectors (such as corner brackets, bolts, rivets, etc.) are no longer able to meet the needs of high-end application scenarios due to their abrupt appearance, easy to bump and scratch, and difficulty in cleaning dust accumulation. Invisible connectors are gradually becoming the mainstream development direction of profile connection technology. However, existing stainless steel concealed connectors are difficult to align during installation. Because the connectors are concealed, the connection points are inside the profile or in a hidden position during assembly. Operators cannot visually observe the alignment of the holes. In addition, most connectors do not have a guide and positioning structure. Alignment is done based solely on experience or auxiliary measuring tools, which easily leads to misalignment between the screw holes and the connector mounting holes. This not only requires repeated adjustments to the profile position, wasting a lot of assembly time, but in severe cases, forced alignment can also cause thread damage and profile deformation, resulting in the scrapping of the accessories and profiles. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide a solution to the problems described in the background art.

[0004] Technical solution: A stainless steel concealed connector for profile connection, comprising a connector body, a profile one provided on the left side of the connector body, a profile two provided on the right side of the connector body, and mating interfaces provided on both the left and right sides of the connector body. A mating block is fixedly connected to the right side of the profile one and the left side of the profile two, and the opposite sides of the two mating blocks extend into the interior of the two mating interfaces respectively.

[0005] Furthermore, both the upper and lower inner surfaces of the two mating interfaces are provided with engagement grooves, and the mating blocks are symmetrically provided with movable grooves. Sliding plates are slidably connected inside the two movable grooves, and wedge blocks are fixedly connected to the opposite sides of the two sliding plates. The opposite sides of the two wedge blocks extend into the interior of the two engagement grooves, and springs are fixedly connected to the opposite sides of the two sliding plates and the interior of the two movable grooves, respectively.

[0006] Furthermore, the front and rear surfaces of the connector body are provided with grooves, and a fixing plate is provided inside each of the two grooves. Circular holes are symmetrically provided on opposite sides of the interior of the two grooves. Threaded holes are provided on the front and rear surfaces of the two mating blocks. Locking bolts are symmetrically provided inside the two fixing plates. Multiple locking bolts pass through multiple circular holes and are threadedly connected to the inner walls of multiple threaded holes.

[0007] Furthermore, multiple plug-in blocks are fixedly connected to the left and right sides of the connector body, and multiple through holes are opened on the opposite sides of the first profile and the second profile, with the multiple plug-in blocks extending into the interior of the multiple through holes respectively.

[0008] Furthermore, pressing grooves are provided on the upper and lower surfaces of the connector body and on the outer sides of the plurality of engaging grooves. Pressing plates are slidably connected inside the plurality of pressing grooves. Pushing plates are slidably connected inside the plurality of engaging grooves and on the outer sides of the plurality of wedge blocks. Connecting rods are fixedly connected between the outer sides of the plurality of pushing plates and the plurality of pressing plates. Springs are sleeved on the outer walls of the plurality of connecting rods. The two ends of the plurality of springs are fixedly connected to the adjacent pressing plates and the opposite sides of the pressing grooves.

[0009] Furthermore, a protective cover is engaged with the interior of each of the plurality of pressing slots and the exterior of each of the plurality of pressing plates.

[0010] Furthermore, protective covers are provided on the opposite sides of the two fixing plates and on the outside of the plurality of locking bolts.

[0011] Beneficial effects: This invention enables rapid initial positioning of profile one and profile two through the insertion and engagement of the mating block and the mating interface, and the locking and limiting of the wedge block and the locking groove. During the positioning process, the threaded hole on the mating block can be automatically and accurately aligned with the round hole in the groove, eliminating the need for repeated manual adjustments. At the same time, the insertion guide of the insertion blocks on both sides of the connector body and the through hole on the profile further improves the mating accuracy and significantly shortens the positioning time before assembly. Subsequently, only the locking bolts are needed to complete the quick fixation. The entire assembly process is simple to operate and effectively improves the overall assembly efficiency of the profile connection. This invention forms an initial mechanical limit by engaging the wedge block with the locking groove, preventing the profile from shifting or falling off before locking; the threaded connection of the locking bolt provides a stable and reliable locking force. The synergistic effect of the dual fixing structure can effectively enhance the structural stability and firmness of the profile connection, prevent the profile from loosening or shifting during use, and ensure the long-term reliability of the profile connection structure. The connector adopts an invisible structure design, with the connector body and the two profiles forming a whole. At the same time, the protective cover one and the protective cover two can effectively cover the pressing plate and the locking bolt respectively, avoiding the exposure of parts and affecting the aesthetics. This ensures the overall clean appearance of the profiles after connection, making it suitable for profile connection scenarios with high requirements for appearance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the connector body of the present invention; Figure 3 This is a front view structural schematic diagram of the cross-section of the connector body and the mating block of the present invention; Figure 4 This is a top view of the cross-section of the connector body, the mating block, and the fixing plate of the present invention; Figure 5 This is the present invention. Figure 3 A magnified structural diagram of point A in the middle.

[0013] In the diagram: 1. Connector body; 2. Profile 1; 3. Profile 2; 4. Connecting interface; 5. Connecting block; 6. Engaging groove; 7. Movable groove; 8. Sliding plate; 9. Wedge block; 10. Spring 1; 11. Groove; 12. Fixing plate; 13. Round hole; 14. Threaded hole; 15. Locking bolt; 16. Insertion block; 17. Through hole; 18. Pressing groove; 19. Pressing plate; 20. Push plate; 21. Connecting rod; 22. Spring 2; 23. Protective cover 1; 24. Protective cover 2. Detailed Implementation

[0014] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figures 1-5 As shown, a stainless steel concealed connector for profile connection is provided, including a connector body 1. A profile 2 is provided on the left side of the connector body 1, and a profile 3 is provided on the right side of the connector body 1. Both the left and right sides of the connector body 1 have mating interfaces 4. A mating block 5 is fixedly connected to the right side of the profile 2 and the left side of the profile 3. The opposite sides of the two mating blocks 5 extend into the interior of the two mating interfaces 4. The upper and lower surfaces of the interior of the two mating interfaces 4 have engagement grooves 6. The interior of the mating blocks 5 has symmetrical movable grooves 7. Sliding plates 8 are slidably connected into the interior of the two movable grooves 7. Wedge blocks 9 are fixedly connected to the opposite sides of the two sliding plates 8. The opposite sides of the two wedge blocks 9 extend into the interior of the two engagement grooves 6. Springs 10 are fixedly connected to the opposite sides of the two sliding plates 8 and the interior of the two movable grooves 7. The front and rear surfaces of the connector body 1 are provided with grooves 11, and the interior of each groove 11 is provided with a fixing plate 12. The interior of each groove 11 is provided with symmetrical round holes 13 on opposite sides. The front and rear surfaces of the two mating blocks 5 are provided with threaded holes 14. The interior of each fixing plate 12 is provided with symmetrical locking bolts 15. Multiple locking bolts 15 pass through multiple round holes 13 and are threaded to the inner sidewalls of multiple threaded holes 14 respectively. When connecting and assembling profile 2 and profile 3, the connecting body 1 first inserts the mating block 5 on the right side of profile 2 and the mating block 5 on the left side of profile 3 into the mating interfaces 4 on both sides of the connecting body 1. During the insertion process, the mating block 5 presses against the wedge block 9, causing the wedge block 9 to move the sliding plate 8 into the movable groove 7 and compress the spring 10. When the mating block 5 is fully inserted into the mating interface 4, the rebound force of the spring 10 pushes the sliding plate 8 to reset, causing the wedge block 9 to engage in the engagement groove 6 on the inner wall of the mating interface 4. This achieves the initial insertion and initial positioning of the two profiles. At this time, the multiple threaded holes 14 on the surface of the mating block 5 can be precisely aligned with the multiple round holes 13 on the inner wall of the groove opening 11. Next, the two fixing plates 12 are placed into the grooves 11 on the front and rear surfaces of the connector body 1, respectively. Multiple locking bolts 15 are passed through the round holes 13 on the inner wall of the groove 11 and screwed into the threaded holes 14 on the surface of the mating block 5. The locking bolts 15 are used to lock and fix the two profiles, which is quick and easy to position. The whole connection process is simple to operate and does not require additional auxiliary tools. It can effectively improve the assembly efficiency of the profile connection. At the same time, the wedge block 9 and the locking groove 6 are engaged and the locking bolts 15 are used to fix the profiles, which can enhance the structural stability and firmness after the profiles are connected. After the connection, the connector body 1 can be hidden between the two profiles and will not be exposed, ensuring the overall aesthetics of the profiles after the connection.

[0016] like Figures 1-4 As shown, multiple plug-in blocks 16 are fixedly connected to the left and right sides of the connector body 1. Multiple through holes 17 are opened on the opposite sides of the profile 1 2 and the profile 2 3. The multiple plug-in blocks 16 extend into the interior of the multiple through holes 17 respectively. During the docking process of profile 1 2, profile 2 3 and connector body 1, multiple plug-in blocks 16 can be simultaneously inserted into the interior of multiple through holes 17, further improving the positioning accuracy when the profile and connector body 1 are docked, and avoiding misalignment during the docking process.

[0017] like Figure 5As shown, pressing grooves 18 are provided on the upper and lower surfaces of the connector body 1 and on the outer side of the multiple engaging grooves 6. Pressing plates 19 are slidably connected inside the multiple pressing grooves 18. Pushing plates 20 are slidably connected inside the multiple engaging grooves 6 and on the outer side of the multiple wedge blocks 9. Connecting rods 21 are fixedly connected between the outer side of the multiple pushing plates 20 and the multiple pressing plates 19 respectively. Springs 22 are sleeved on the outer side walls of the multiple connecting rods 21. The two ends of the multiple springs 22 are fixedly connected to the adjacent pressing plates 19 and the opposite sides of the pressing grooves 18 respectively. The upper and lower surfaces of the connector body 1, located outside the multiple engagement slots 6, are also provided with pressing grooves 18. Each pressing groove 18 has a pressing plate 19 slidably connected inside. Each engagement slot 6 has a pushing plate 20 slidably connected inside and outside the multiple wedge blocks 9. Each pushing plate 20 has a connecting rod 21 fixedly connected to each pressing plate 19 on its outer side. Each connecting rod 21 has a spring 22 sleeved on its outer wall. The two ends of each spring 22 are respectively connected to the adjacent pressing plate 19 and pressing groove 1. The internal opposite sides of 8 are fixedly connected. When it is necessary to disassemble the profile, first unscrew the locking bolt 15 and remove the fixing plate 12. Then, press the two pressing plates 19 on one side at the same time, which will drive the connecting rod 21 and the push plate 20 to move synchronously. Use the push plate 20 to squeeze the wedge block 9 to make it disengage from the locking groove 6 and release the positioning limit state. Then the profile 1 2 and profile 2 3 can be easily separated from the connecting body 1. The whole disassembly process does not require complicated tools, and the operation is convenient and efficient, which greatly reduces the difficulty and time cost of profile disassembly.

[0018] like Figure 5 As shown, a protective cover 23 is engaged and connected to the inside of the multiple pressing grooves 18 and the outside of the multiple pressing plates 19. The protective cover 23 can effectively protect the pressing plate 19, preventing accidental contact during daily use. It also prevents dust, water stains and other impurities from entering the pressing groove 18, avoiding the problem of the pressing plate 19 getting stuck and unable to be pressed smoothly due to the accumulation of impurities, and ensuring the long-term stable and reliable operation of the disassembly structure.

[0019] like Figure 1 and Figure 4 As shown, protective covers 24 are provided on the opposite sides of the two fixing plates 12 and on the outside of the multiple locking bolts 15. The protective cover 24 effectively shields and protects the locking bolt 15, preventing it from being exposed to external impacts and wear, which could lead to stripping or deformation. It also isolates impurities such as dust, rainwater, and corrosive gases, preventing them from entering the threaded connection and causing bolt corrosion or jamming. This ensures the smoothness of the locking bolt 15's assembly and disassembly and the stability of the connection. Furthermore, it makes the overall appearance of the connector cleaner and more aesthetically pleasing, further enhancing the decorative effect of the concealed connection.

[0020] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A stainless steel concealed connector for profile connection, comprising a connector body (1), characterized in that: A profile one (2) is provided on the left side of the connector body (1), and a profile two (3) is provided on the right side of the connector body (1). Both the left and right sides of the connector body (1) are provided with mating interfaces (4). Both the right side of the profile one (2) and the left side of the profile two (3) are fixedly connected with mating blocks (5). The opposite sides of the two mating blocks (5) extend into the interior of the two mating interfaces (4).

2. The stainless steel concealed connector for profile connection according to claim 1, characterized in that: The upper and lower inner surfaces of the two mating interfaces (4) are provided with engagement grooves (6), the mating blocks (5) are provided with symmetrical movable grooves (7), the two movable grooves (7) are slidably connected with sliding plates (8), the opposite sides of the two sliding plates (8) are fixedly connected with wedge blocks (9), the opposite sides of the two wedge blocks (9) extend into the interior of the two engagement grooves (6), and the opposite sides of the two sliding plates (8) are fixedly connected with springs (10) to the interior of the two movable grooves (7).

3. A stainless steel concealed connector for profile connection according to claim 1, characterized in that: The front and rear surfaces of the connector body (1) are provided with grooves (11), and the interior of each groove (11) is provided with a fixing plate (12). The interior of each groove (11) is provided with symmetrically opposite round holes (13). The front and rear surfaces of the two mating blocks (5) are provided with threaded holes (14). The interior of each fixing plate (12) is provided with symmetrically arranged locking bolts (15). The multiple locking bolts (15) pass through the multiple round holes (13) respectively and are threadedly connected to the inner sidewalls of the multiple threaded holes (14).

4. A stainless steel concealed connector for profile connection according to claim 1, characterized in that: Multiple plug-in blocks (16) are fixedly connected to the left and right sides of the connector body (1). Multiple through holes (17) are opened on the opposite sides of the profile one (2) and the profile two (3). The multiple plug-in blocks (16) extend into the interior of the multiple through holes (17).

5. A stainless steel concealed connector for profile connection according to claim 2, characterized in that: Pressing grooves (18) are provided on the upper and lower surfaces of the connector body (1) and on the outer side of the multiple engagement grooves (6). Pressing plates (19) are slidably connected inside the multiple pressing grooves (18). Pushing plates (20) are slidably connected inside the multiple engagement grooves (6) and on the outer side of the multiple wedge blocks (9). Connecting rods (21) are fixedly connected between the outer side of the multiple push plates (20) and the multiple pressing plates (19). Springs (22) are sleeved on the outer side walls of the multiple connecting rods (21). The two ends of the multiple springs (22) are fixedly connected to the opposite sides of the interior of the adjacent pressing plates (19) and the pressing grooves (18).

6. A stainless steel concealed connector for profile connection according to claim 5, characterized in that: A protective cover (23) is engaged with the inside of each of the multiple pressing grooves (18) and the outside of each of the multiple pressing plates (19).

7. A stainless steel concealed connector for profile connection according to claim 3, characterized in that: Protective covers (24) are provided on the opposite sides of the two fixing plates (12) and on the outside of the plurality of locking bolts (15).

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