Furniture invisible connecting piece

Abstract

The utility model relates to the technical field of furniture, in particular to an invisible connecting piece for furniture. The device is used for vertically connecting two plates of the panel furniture. The surface of the front section of the screw is a flat section, and sawteeth are arranged on the front surface and the back surface of the flat section. And one end of the second screw rod is provided with a notch for the screw rod to insert, one side of two opposite planes in the notch is locally provided with a row of second sawteeth, the second sawteeth and the sawteeth are reversely buckled, and the flat section is narrower than the planes. After installation, the screw rod and the second screw rod cannot be seen, so that the invisible connecting piece is called as an invisible connecting piece. After connection, the flat section and the second sawteeth can translate and move in a staggered mode under the action of external force, plugging separation of the screw and the second screw is achieved, the fixing positions of the screw and the second screw are not damaged in the dismounting process, a drill hole is not damaged, and therefore repeated use can be achieved. If the cabinet body is wrongly designed, wrongly installed or moved and assembled, the connecting piece can be conveniently disassembled, the original drilling and the original connecting piece can be repeatedly used, and the material cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture technical field, namely furniture invisible connecting piece. BACKGROUND

[0002] In the prior art, there are commonly used two connecting pieces for parallel or vertical connection between two plate pieces of plate furniture. The two connecting pieces are implicit and explicit. Taking the implicit two connecting piece as an example, the implicit two connecting piece is a screw rod with a back-pulling stopper at the front end and a plastic tube with external threads sleeved thereon. During use, a hole is drilled in the plate, the plastic tube is hammered in, the screw rod is hammered in, and the front end of the screw rod is stopped at the front end of the plastic tube along the edge to prevent pulling out. The disadvantage is that the gap between the screw rod stopper and the front end of the plastic tube causes the two connected plates to be not tightly fixed, the connection effect is poor, and the two connecting pieces are used only once, resulting in waste of parts.

[0003] A utility model patent with the name "plate furniture assembly invisible two connecting piece" was disclosed on February 20, 2024, and the application number is 202321979248.8. It includes a section of screw rod, and the surface of the screw rod has reverse threads like a twist drill. The disadvantage is that the surface of the screw rod uses a single reverse thread, and the bidirectional locking effect is not ideal during the hammering of the other plate, and the two connecting pieces are used only once, resulting in waste of parts.

[0004] In addition, once the above connection needs to be reworked, the connecting piece cannot be reused, and it needs to be drilled again, which is time-consuming, labor-intensive, and material-consuming. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a furniture invisible connecting piece with optimized structure and reusable connecting piece for disassembly.

[0006] The technical solution of the utility model is as follows: the furniture invisible connecting piece includes a section of screw rod, the front section of the screw rod is flat, and the front and back surfaces of the flat section have sawteeth; it also includes a second screw rod for inserting the screw rod from one end, the second screw rod has an opening at one end for inserting the screw rod, the opening has a row of second sawteeth on one side of the two opposite planes, the second sawteeth are reversely buckled with the sawteeth, and the flat section is narrower than the plane.

[0007] In the above scheme, it also includes:

[0008] The second sawteeth are 2-3 teeth.

[0009] The flat section has a convex edge at the connection with the screw rod.

[0010] The outer surface corresponding to one of the second sawteeth has a concave surface.

[0011] The utility model discloses a screw rod structure and a furniture invisible connecting piece.

[0012] The utility model discloses a screw rod structure and a furniture invisible connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model discloses a screw rod structure and a furniture invisible connecting piece.

[0014] Figure 2 The utility model discloses a screw rod structure and a furniture invisible connecting piece.

[0015] Figure 3 The utility model discloses a screw rod structure and a furniture invisible connecting piece.

[0016] Figure 4 The utility model discloses a screw rod structure and a furniture invisible connecting piece.

[0017] Figure 5 The utility model discloses a screw rod structure and a furniture invisible connecting piece.

[0018] The utility model discloses a screw rod structure and a furniture invisible connecting piece. DETAILED DESCRIPTION

[0019] The utility model discloses a screw rod structure and a furniture invisible connecting piece. Figures 1-5 The utility model discloses a screw rod structure and a furniture invisible connecting piece. Figure 1 The utility model discloses a screw rod structure and a furniture invisible connecting piece. Figure 2 The utility model discloses a screw rod structure and a furniture invisible connecting piece. Figure 2 、 3), the second sawtooth 7 is 2-3 teeth, more teeth will have large insertion resistance, the second sawtooth 7 is arranged on one side of the plane 6, and the other side is provided with space for lateral movement of the flat section 3, the second sawtooth 7 is reversely buckled with the sawtooth 2 so as to be clamped. The flat section 3 is narrower than the plane 6. One of the second sawtooth 7 corresponds to an outer surface with a concave surface 8, which provides a deformation space when the flat section 3 is inserted. The connecting piece is used for vertical connection of two plates, and the second screw 4 is usually screwed into the end face of one plate (horizontal plate 11), and the screw 1 is vertically screwed into the plane of the other plate (vertical plate 10), and after combination, the two plates are vertically connected (see Figure 4 ). According to the length of the connecting plate, the furniture invisible connecting piece can be spaced and used. Usually, more than two are spaced and used to avoid rotation between the two plate pieces. The furniture invisible connecting piece is comparable in size to the existing connecting piece.

[0020] Referring to Figures 1-5 , the use method is that the furniture invisible connecting piece is used for vertical connection between two plate pieces. Figure 4 The vertical plate 10 and the horizontal plate 11 are connected by two spaced furniture invisible connecting pieces. Taking one furniture invisible connecting piece as an example:

[0021] Install the screw 1 on the vertical plate 10: Drill a blind hole (with a diameter slightly smaller than the outer diameter of the screw 1) on the plane of the vertical plate 10, slightly hit the screw 1 first, and then screw the screw 1 until the protruding edge 12 is in contact with the vertical plate 10.

[0022] Install the second screw 4 on the horizontal plate 11: Drill a blind hole (with a diameter slightly smaller than the outer diameter of the second screw 4) on the end face of the horizontal plate 11, slightly hit the second screw 4 first, and then screw the second screw 4. When installing multiple second screws 4, pay attention to ensure that the second sawtooth 7 of each second screw 4 is in the same direction (such as Figure 3 , the second sawtooth 7 is all downward), and there is a mark on the surface of the second screw 4.

[0023] Connect the vertical plate 10 and the horizontal plate 11: Align the flat section 3 of the screw 1 on the vertical plate 10 with the port of the second screw 4 on the horizontal plate 11, and hit and insert it. When the sawtooth 2 and the second sawtooth 7 slide through each other, they are pressed against each other, the concave surface 8 provides a small space for the second screw gap to expand slightly from the back, so that the flat section 3 can pass smoothly (the second screw 4 is mainly made of plastic material and has elasticity, which is easy for the sawtooth 2 and the second sawtooth 7 to slide through), and the sawtooth 2 on the flat section 3 is reversely hooked with the second sawtooth 7 on the plane 6, so it cannot be pulled out, achieving connection.

[0024] Dismantling: When disassembling, knock the horizontal plate 11 to make it move horizontally (from the inside to the outside in Figure 4 , so that the flat section 3 is on the upper side of the second sawtooth 7, see Figure 5 ), so that the flat section 3 is out of phase with the second sawtooth 7, and is Figure 5The state, pull can be separated. Flat section 3 width than the plane 6 narrow, when the second sawtooth 7 can let go. The second sawtooth 7 on the plane 6 position second screw 4 surface is marked, so when installing multiple second sawtooth 7 is convenient to determine in one direction, will not be wrong, otherwise can not be removed. The connecting piece with wrench can realize disassembly and assembly.

[0025] After installation, the screw 1, the second screw 4 can't be seen. Therefore, it is called invisible connecting piece. Flat section 3 and the second sawtooth 7 can be moved in staggered position, without damaging the fixed position of the screw 1 and the second screw 4 when disassembling, so it can be reused. If the cabinet design is wrong, the connecting piece can be disassembled conveniently, and the connecting piece can be reused.

[0026] The above description is only a specific embodiment of the utility model, and various examples do not constitute a limitation on the essential content of the utility model.

Claims

1. Furniture invisible joint, characterized in that It comprises a screw rod (1), the front section of the screw rod (1) is a flat section (3), the front and back surfaces of the flat section (3) are provided with sawteeth (2); it also comprises a second screw rod (4) for inserting the screw rod (1) from one end, the second screw rod (4) is provided with an opening (5) for inserting the screw rod (1) at one end, the side of the two opposite planes (6) in the opening (5) is partially provided with a row of second sawteeth (7), the second sawteeth (7) are reversely buckled with the sawteeth (2), and the flat section (3) is narrower than the plane (6).

2. The furniture invisible joint according to claim 1, characterized in that The second sawteeth (7) are 2-3 teeth.

3. The furniture invisible joint according to claim 1, characterized in that The flat section (3) is provided with a convex edge (12) at the connection with the screw rod (1).

4. Furniture invisible joint according to claim 1, 2 or 3, characterized in that The corresponding outer surface of one of the second sawteeth (7) is provided with a concave surface (8).

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