Clip-type hidden three-in-one connector

Abstract

The present invention discloses a clip-type hidden three-in-one connector, comprising a connecting plate B, wherein a connecting plate A perpendicular to the connecting plate B is arranged on the top of the connecting plate B, a connecting hole A and a connecting hole B are provided on the bottom surface of the connecting plate A, a fixing groove is symmetrically provided on the top surface of the connecting plate B, a connecting assembly is embedded in the inner side of the fixing groove, and the connecting assembly comprises an insert, a connecting bolt and a fastener; through the designed insert, the connecting bolt and the fastener are integrally placed inside the insert for connection, thereby greatly reducing the damage caused by the connection between the fastener and the furniture, reducing the limitation of use, and with the designed positioning pin, the stability of the connection can be further increased, and at the same time, the installation and the subsequent disassembly are more convenient, the aesthetics is also improved, and all the connecting assemblies are hidden, so that the connecting parts of the connecting plate A and the connecting plate B are not exposed, and the board surface of the entire connecting plate A and the connecting plate B is more beautiful.

Description

Technical Field

[0001] The invention belongs to the technical field of connectors, and in particular relates to a clip-type hidden three-in-one connector. Background Art

[0002] Furniture connectors are components used to connect furniture in the manufacturing process and come in various forms.

[0003] The existing furniture connectors still have some shortcomings when in use: the existing furniture connectors are generally connected by expansion screw heads, connecting bolts and fasteners in use to ensure the stability of the connection. However, in actual use, since the fasteners are very tightly connected to the furniture, they are easily loosened by the connecting bolts due to damage to the furniture, and cannot be repaired later, so the use is relatively limited. At the same time, in the connection of furniture, multiple expansion screw heads, connecting bolts and fasteners are often required to be used together, which is more troublesome to connect. Summary of the invention

[0004] The purpose of the present invention is to provide a clip-type hidden three-in-one connector to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a clip-type hidden three-in-one connector, comprising a connecting plate B, a connecting plate A perpendicular to the connecting plate B is arranged on the top of the connecting plate B, a connecting hole A and a connecting hole B are opened on the bottom surface of the connecting plate A, a fixing groove is symmetrically opened on the top surface of the connecting plate B, a connecting assembly is embedded in the inner side of the fixing groove, the connecting assembly comprises an insert and a connecting bolt, arrow-shaped contours are opened on both sides of the outer side of the insert, an expansion screw head is connected to the top of the connecting bolt, and the expansion screw head is threaded with the inner wall of the connecting hole B. The surface of the insert is provided with a side hole, the rear surface of the insert is provided with a concave hole, the center of the concave hole is on the same horizontal line as the center of the side hole, the top surface of the insert is provided with a top hole, the top hole is communicated with the side hole, a fastener is inserted into the inner side of the side hole, the bottom end of the connecting bolt passes through the top hole to the inner side of the fastener, the surface of the connecting plate B is provided with a through hole, the bottom end of the through hole passes through to the inside of the fixing groove, the inside of the through hole is connected with a positioning pin, the bottom end of the positioning pin passes through the fixing groove, the fastener and the side hole in sequence and is fixedly connected to the concave hole.

[0006] Preferably, the positioning pin is a composite structure consisting of a cylinder and a truncated cone, a fitting sheet is provided on the outside of the positioning pin, the fitting sheet is inclined, an L-shaped groove is provided on the surface of the positioning pin relative to the cylinder, the bottom end of the fitting sheet is bent and inserted into the L-shaped groove to be fixed to the positioning pin, and the fitting sheet is a component made of elastic material.

[0007] Preferably, a screw hole is provided on the top surface of the connecting plate B at an inner center position relative to the fixing groove, a fixing bolt passes through the inner side of the screw hole, and the connecting plate A is fixed to the connecting plate B by the fixing bolt passing through the screw hole.

[0008] Preferably, the thickness of the fastener is equal to the depth of the side hole, and the bottom end of the connecting bolt is composed of two cylinders with different diameters.

[0009] Preferably, the center of the through hole and the center of the side hole are on the same straight line, and the inner diameter of the through hole is the same as the diameter of the cylinder constituting the positioning pin.

[0010] Preferably, the connecting plate B and the connecting plate A are both rectangular structures, and both are made of wooden materials.

[0011] Preferably, the diameter of the bottom end of the truncated cone constituting the positioning pin is 1.3 times the diameter of the cylindrical body constituting the positioning pin, and the diameter of the cylindrical body is equal to the diameter of the connection point of the top end of the truncated cone.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Through the designed insert, the connecting bolts and fasteners are placed inside the insert as a whole for connection, which greatly reduces the damage caused by the connection between the fasteners and the furniture and narrows the limitations of use. With the designed positioning pins, the stability of the connection can be further increased, the frequency of maintenance can be reduced, and the installation and later disassembly are more convenient, and the aesthetics are also improved;

[0014] 2. Through the designed fitting piece, the positioning pin can be inserted into the fastener, and the stability of the connection can be increased through its own deformation and resilience, avoiding loosening in later use and ensuring the normal use of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an explosion schematic diagram of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the present invention;

[0017] Figure 3 It is a structural schematic diagram of the insert of the present invention;

[0018] Figure 4 It is a cross-sectional view of the positioning latch of the present invention.

[0019] In the figure: 1. Connection hole A; 2. Connection hole B; 3. Positioning pin; 4. Connection plate B; 5. Connection plate A; 6. Expansion screw head; 7. Connection bolt; 8. Insert; 9. Fixing groove; 10. Through hole; 11. Fastener; 12. Fixing bolt; 13. Top hole; 14. Side hole; 15. Fitting sheet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figures 1 to 3 The present invention provides a technical solution: a clip-type hidden three-in-one connector, including a connecting plate B4, a connecting plate A5 perpendicular to the connecting plate B4 is arranged on the top of the connecting plate B4, a connecting hole A1 and a connecting hole B2 are opened on the bottom surface of the connecting plate A5, a fixing groove 9 is symmetrically opened on the top surface of the connecting plate B4, a connecting assembly is embedded in the inner side of the fixing groove 9, the connecting assembly includes an insert 8 and a connecting bolt 7, arrow-shaped contours are opened on both sides of the outer side of the insert 8, and through the setting of the arrow-shaped contour, after the insert 8 is inserted into the connecting plate A4, the friction between the two is increased to prevent the insert 8 from being easily pulled out, an expansion screw head 6 is connected to the top of the connecting bolt 7, and the expansion screw head 6 is threadedly connected to the inner wall of the connecting hole B2, a side hole 14 is opened on the surface of the insert 8, and a concave hole is opened on the rear surface of the insert 8, and the center of the concave hole and the center of the side hole 14 are on the same horizontal line. A top hole 13 is provided on the top surface of the insert 8, and the top hole 13 is communicated with the side hole 14. A fastener 11 is inserted into the inner side of the side hole 14, and the bottom end of the connecting bolt 7 passes through the top hole 13 to the inner side of the fastener 11. A through hole 10 is provided on the surface of the connecting plate B4, and the bottom end of the through hole 10 passes through the interior of the fixing groove 9. The interior of the through hole 10 is connected with a positioning pin 3, and the bottom end of the positioning pin 3 passes through the fixing groove 9, the fastener 11 and the side hole 14 in turn and is fixedly connected to the concave hole. Through the designed insert 8, the connecting bolt 7 and the fastener 11 are placed as a whole inside the insert 8 for connection, thereby greatly reducing the damage caused by the connection between the fastener 11 and the furniture, reducing the limitations of use, and cooperating with the designed positioning pin 3, the stability of the connection can be further increased, the frequency of maintenance is reduced, and at the same time, the installation and later disassembly are more convenient, and the aesthetics is also improved.

[0023] Example 2

[0024] See also Figures 1 to 4The present invention provides a technical solution: a clip-type hidden three-in-one connector, including a connecting plate B4, a connecting plate A5 perpendicular to the connecting plate B4 is arranged on the top of the connecting plate B4, a connecting hole A1 and a connecting hole B2 are opened on the bottom surface of the connecting plate A5, a fixing groove 9 is symmetrically opened on the top surface of the connecting plate B4, a connecting assembly is embedded in the inner side of the fixing groove 9, the connecting assembly includes an insert 8 and a connecting bolt 7, arrow-shaped contours are opened on both sides of the outer side of the insert 8, and through the setting of the arrow-shaped contour, after the insert 8 is inserted into the connecting plate A4, the friction between the two is increased to prevent the insert 8 from being easily pulled out, an expansion screw head 6 is connected to the top of the connecting bolt 7, and the expansion screw head 6 is threadedly connected to the inner wall of the connecting hole B2, a side hole 14 is opened on the surface of the insert 8, and a concave hole is opened on the rear surface of the insert 8, and the center of the concave hole and the center of the side hole 14 are on the same horizontal line. A top hole 13 is provided on the top surface of the insert 8, and the top hole 13 is communicated with the side hole 14. A fastener 11 is inserted into the inner side of the side hole 14, and the bottom end of the connecting bolt 7 passes through the top hole 13 to the inner side of the fastener 11. A through hole 10 is provided on the surface of the connecting plate B4, and the bottom end of the through hole 10 passes through the interior of the fixing groove 9. The interior of the through hole 10 is connected with a positioning pin 3, and the bottom end of the positioning pin 3 passes through the fixing groove 9, the fastener 11 and the side hole 14 in turn and is fixedly connected to the concave hole. Through the designed insert 8, the connecting bolt 7 and the fastener 11 are placed as a whole inside the insert 8 for connection, thereby greatly reducing the damage caused by the connection between the fastener 11 and the furniture, reducing the limitations of use, and cooperating with the designed positioning pin 3, the stability of the connection can be further increased, the frequency of maintenance is reduced, and at the same time, the installation and later disassembly are more convenient, and the aesthetics is also improved.

[0025] In the present embodiment, preferably, the positioning pin 3 is a composite structure consisting of a cylinder and a truncated cone, and a fitting sheet 15 is provided on the outside of the positioning pin 3. The fitting sheet 15 is inclined, and an L-shaped groove is provided on the surface of the positioning pin 3 relative to the cylinder. The bottom end of the fitting sheet 15 is bent and inserted into the L-shaped groove to be fixed to the positioning pin 3. The fitting sheet 15 is a component made of elastic material. Through the designed fitting sheet 15, when the positioning pin 3 is inserted into the fastener 11, the stability of the connection can be increased through its own deformation and resilience, thereby avoiding loosening in later use and ensuring the normal use of the connector.

[0026] In this embodiment, preferably, a screw hole is opened on the top surface of the connecting plate B4 at the inner center position relative to the fixing groove 9, and a fixing bolt 12 passes through the inside of the screw hole. The connecting plate A5 is fixed to the connecting plate B4 by the fixing bolt 12 passing through the screw hole. The designed fixing bolt 12 can reinforce the connection to avoid damage to the plate caused by the insert 8.

[0027] The working principle and use process of the present invention: When the present invention is in use, the expansion screw head 6 is screwed into the connecting hole B2, and then the connecting bolt 7 is rotated and screwed into the collision screw head 6 for connection. At this time, the connecting bolt 7 is fixed to the bottom end surface of the connecting plate A5 through the expansion screw head 6, and the fastener 11 is placed in the side hole 14 opened on the surface of the insert 8, and then the connecting bolt 7 is inserted into the insert 8 and buckled into the fastener 11, and then the insert 8 fixed on the connecting plate A5 is aligned with the fixing groove 9 and embedded, and then the fastener 11 is tightened from the through hole 10 using a screwdriver, and then the positioning pin 3 is passed through the fastener 11 from the through hole 10 and clamped into the rear half of the connecting plate B4 for fixing. During the fixing, the bonding sheet 15 on the surface of the positioning pin 3 is compressed by force. After the installation is completed, the connection stability is increased again by the rebound force of the bonding sheet 15.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clip-type hidden three-in-one connector, comprising a connecting plate B, a connecting plate A perpendicular to the connecting plate B is arranged on the top of the connecting plate B, characterized in that: The bottom surface of the connecting plate A is provided with a connecting hole A and a connecting hole B, the top surface of the connecting plate B is symmetrically provided with a fixing groove, the inner side of the fixing groove is embedded with a connecting assembly, the connecting assembly includes an insert and a connecting bolt, the outer sides of the insert are provided with arrow-shaped profiles, the top end of the connecting bolt is connected with an expansion screw head, and the expansion screw head is threadedly connected with the inner wall of the connecting hole B, the surface of the insert is provided with a side hole, the rear surface of the insert is provided with a concave hole, the center of the concave hole and the center of the side hole are on the same horizontal line, the top surface of the insert is provided with a top hole, the top hole is communicated with the side hole, a fastener is stuck in the inner side of the side hole, the bottom end of the connecting bolt passes through the top hole to the inner side of the fastener, the surface of the connecting plate B is provided with a through hole, the bottom end of the through hole passes through and is opened to the inside of the fixing groove, the inside of the through hole is connected with a positioning pin, and the bottom end of the positioning pin passes through the fixing groove, the fastener and the side hole in sequence and is fixedly connected to the concave hole; The positioning pin is a composite structure composed of a cylinder and a truncated cone. A fitting sheet is arranged on the outside of the positioning pin. The fitting sheet is inclined. An L-shaped groove is provided on the surface of the positioning pin relative to the cylinder. The bottom end of the fitting sheet is bent and inserted into the L-shaped groove to be fixed to the positioning pin. The fitting sheet is an elastic material component. A screw hole is provided on the top surface of the connecting plate B at the inner center position relative to the fixing groove, and a fixing bolt passes through the inner side of the screw hole. The connecting plate A is fixed to the connecting plate B by the fixing bolt passing through the screw hole.

2. The clip-type hidden three-in-one connector according to claim 1, characterized in that: The thickness of the fastener is equal to the depth of the side hole, and the bottom end of the connecting bolt is composed of two cylinders with different diameters.

3. The clip-type hidden three-in-one connector according to claim 1, characterized in that: The center of the through hole and the center of the side hole are on the same straight line, and the inner diameter of the through hole is the same as the diameter of the frustum constituting the positioning pin.

4. The clip-type hidden three-in-one connector according to claim 1, characterized in that: The connecting plate B and the connecting plate A are both rectangular parallelepiped structures, and both are wooden components.

5. The clip-type hidden three-in-one connector according to claim 3, characterized in that: The diameter of the bottom end of the truncated cone constituting the positioning pin is 1.3 times the diameter of the cylindrical body constituting the positioning pin, and the diameter of the cylindrical body is equal to the diameter of the connection point of the top end of the truncated cone.

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