CN210978094U

CN210978094U - Invisible plate type connecting piece

Info

Publication number: CN210978094U
Application number: CN201921629252.5U
Authority: CN
Inventors: 吴刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-10
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a hidden plate type connecting piece, which comprises a T-shaped connecting screw rod, a pre-buried fixing piece and an expansion nail; the T-shaped connecting screw is provided with inverted tooth threads and a clamping plate, an expansion hole is formed in the hollow connecting screw, a fastening convex point is arranged at the front end of the bottom of the clamping plate, clamping inclined planes are arranged on two sides of the top of the clamping plate, and the two clamping inclined planes are arranged in a non-parallel mode and are closest to one end of the clamping convex point; the side surface of the embedded fixing piece is provided with inverted tooth threads, the embedded fixing piece is hollow to form an expansion hole, an inclined plane limiting area is arranged above the expansion hole, a clamping chute and a fastening concave point are arranged in the inclined plane limiting area, and a clamping plate can be inserted into the inclined plane limiting area from one end of the clamping chute, so that the clamping inclined plane slides into the clamping chute, and the fastening convex point slides into the fastening concave point; the T-shaped connecting screw and the expansion holes of the embedded fixing pieces are respectively matched with one expansion nail. The connecting piece is connected with the plate, does not expose hole positions, is quick to install and convenient to disassemble, and has stronger bearing capacity.

Description

Invisible plate type connecting piece

Technical Field

The utility model relates to an invisible plate type connecting piece, more specifically, the utility model relates to a connecting piece that comprises connecting screw, pre-buried mounting and inflation nail.

Background

At present, a plurality of pieces of furniture are all plate-type furniture and are connected by adopting a three-in-one connecting piece. The three-in-one connecting piece consists of three parts, namely a plug (rubber plug/wood plug), a bolt and an eccentric piece. Three-in-one use is got up more conveniently, and the producer can use large-scale instrument such as cutting machine, gang drill, laser side hole machine etc. at the unloading, punch, so punch very accurately, and the panel furniture that three-in-one connecting piece connects in addition also has the characteristics that can dismantle, reassemble. However, such disassembly and reassembly require tool assistance and time for alignment calibration, and thus are not convenient enough for assembly and disassembly.

SUMMERY OF THE UTILITY MODEL

The utility model provides an embodiment of stealthy board-like connecting piece, this stealthy board-like connecting piece compare trinity connecting piece have the advantage of being more convenient for equipment and dismantlement.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

an invisible plate type connecting piece comprises a T-shaped connecting screw rod, a pre-buried fixing piece and an expansion nail; the outer side of one end of the T-shaped connecting screw is provided with inverted tooth threads, the other end of the T-shaped connecting screw is provided with a clamping plate, an expansion hole is formed in a hollow mode, the front end of the bottom of the clamping plate is provided with a fastening convex point, two sides of the top of the clamping plate are provided with clamping inclined planes, and the two clamping inclined planes are arranged in a non-parallel mode and are closest to one end of the clamping convex point; the side surface of the embedded fixing piece is provided with inverted tooth threads, the embedded fixing piece is hollow to form an expansion hole, an inclined plane limiting area is arranged above the expansion hole, a clamping chute and a fastening concave point are arranged in the inclined plane limiting area, and a clamping plate can be inserted into the inclined plane limiting area from one end of the clamping chute, so that the clamping inclined plane slides into the clamping chute, and the fastening convex point slides into the fastening concave point; the expansion holes of the T-shaped connecting screw and the pre-buried fixing piece are respectively matched with one expansion nail.

The inclined plane limiting area is provided with an upper opening and a lower opening, the width of the upper opening is larger than that of the lower opening, and the fastening concave point is arranged at the lower opening.

The main body of the clamping and connecting plate is trapezoidal.

The front end face of the clamping plate is arc-shaped.

The fastening salient points are semi-cylinders with semicircular sections.

The side profile of the embedded fixing piece is formed by connecting arc-shaped surfaces.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

1. during connection, an embedded part similar to three-in-one is not required to be additionally installed, so that the installation is quicker;

2. after the connection is finished, the exposed hole sites cannot be seen, so that a perfect hiding effect is achieved;

3. the connecting piece has simple requirements on processing during production, fewer hole sites and production time saving;

4. pure screw fixation one side connecting plate, it is more firm than the trinity of trompil, the bearing is stronger.

Drawings

FIG. 1 is a side view of a "T" shaped connecting screw.

Fig. 2 is a sectional view a-a of fig. 1.

FIG. 3 is a perspective view of a "T" shaped connecting screw.

FIG. 4 is a bottom view of the "T" shaped connecting screw.

FIG. 5 is a top view of the "T" shaped connecting screw.

Fig. 6 is a top view of the fastener inserts.

Fig. 7 is a sectional view B-B of fig. 6.

Fig. 8 is a perspective view of the pre-buried fixing member.

Fig. 9 is a schematic view of the expansion nail.

Fig. 10 is a schematic view showing a loose state when the T-shaped connecting screw and the embedded fixing member are combined.

Fig. 11 is a schematic view of a fixing state when the T-shaped connecting screw and the embedded fixing member are combined.

FIG. 12 is a schematic view of the loose state of the invisible plate connector used on the connection plate.

Fig. 13 is a schematic view of the fastening state using the concealed plate type connecting member on the connecting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invisible plate type connecting piece comprises a T-shaped connecting screw rod, a pre-buried fixing piece and an expansion nail.

The structure of the T-shaped connecting screw is shown in figures 1 to 5.

As shown in figure 1, the T-shaped connecting screw has inverted tooth threads 1 on the outer side of the upper end, a snap plate 2 on the lower end, and a fastening convex point 3 on the front end of the bottom of the snap plate.

As shown in FIG. 2, the "T" -shaped connecting screw is hollow to form an expansion hole 4.

As shown in fig. 3, the top of the clamping plate 2 has clamping slopes 5 on both sides, which are non-parallel and closest to one end of the clamping protrusion 3. The fastening salient points are semi-cylinders with semicircular sections.

As shown in figure 4, the T-shaped connecting screw is hollow to form an expansion hole 4, the expansion hole penetrates through the clamping plate, and the bottom of the clamping plate is provided with a fastening salient point 3. The main body shape of joint board is trapezoidal, and the front end terminal surface of joint board is the arc. Preferably, both end faces of the fastening salient point and the side face of the clamping plate are in the same plane.

As shown in fig. 5, the top of the clamping plate has clamping slopes 5 on both sides.

As shown in fig. 6, the embedded fastener is hollowed to form an expansion hole 4. The pre-buried mounting has the spacing district of inclined plane, and the spacing district of inclined plane has upper shed 6 and under shed 7, the width of upper shed 6 is greater than the width of under shed 7, and fastening concave point 8 sets up at the under shed department. The snap plate is inserted into the fastener insert from the upper opening 6.

As shown in fig. 7, the side of the embedded fixing part is provided with inverted tooth threads 1, the upper part of the expansion hole 4 is an inclined plane limiting area 9, a clamping chute 10 and a fastening concave point 8 are arranged in the inclined plane limiting area, and the clamping plate can be inserted into the inclined plane limiting area from the upper opening end of the clamping chute, so that the clamping inclined plane slides into the clamping chute, and the fastening convex point slides into the fastening concave point 8 to be connected together.

As shown in fig. 8, the side of the embedded fixing member has a pawl thread 1 and an expansion hole 4, the inclined plane limiting area is located above the expansion hole 4, the two sides in the inclined plane limiting area are provided with clamping chutes 10, the clamping chutes are matched with the clamping inclined plane in shape, and when the clamping inclined plane is clamped in the clamping chutes, the contact surface of the embedded fixing member and the clamping plate is in tight friction contact. The fastening concave points 8 are used for being matched with the fastening convex points to fix the clamping plate on the embedded fixing piece. The side profile of the embedded fixing piece is formed by connecting arc-shaped surfaces.

The expansion holes of the T-shaped connecting screw and the embedded fixing piece are respectively matched with an expansion nail, and the expansion nails are shown in figure 9.

Fig. 10 and 11 are schematic diagrams of the T-shaped connecting screw rod and the embedded fixing piece being matched together, fig. 10 is a state that the T-shaped connecting screw rod is inserted into the embedded fixing piece from the upper opening and is not locked, and fig. 11 is a state that the T-shaped connecting screw rod is completely inserted into the embedded fixing piece and is locked, and at the moment, the fastening convex point slides into the fastening concave point.

Fig. 12 and 13 show that the T-shaped connecting screw and the pre-embedded fixing member are respectively fixed in one connected plate, the pre-embedded fixing member is embedded in one plate, the T-shaped connecting screw is partially embedded in the other plate, and the clamping plate is exposed outside the plate. Fig. 12 shows a state where two plate materials are not joined, and fig. 13 shows a state where two plate materials are joined.

The using method comprises the following steps:

the T-shaped connecting screw is fixed in the hole position on the side surface of the plate until the inverted tooth thread part is completely inserted into the hole position. The embedded fixing piece is fixed on the other connecting plate of the punched hole position. And inserting the expansion nail into the expansion hole of the T-shaped connecting screw rod until the screw is completely inserted into the expansion hole. The exposed clamping plate part on the plate with the T-shaped connecting screw is inserted into the upper opening of the embedded fixing piece to be matched with the plate, the plate with the T-shaped connecting screw is forcibly moved (flapped) towards the lower opening of the inclined plane limiting area, and the plate with the T-shaped connecting screw and the embedded fixing piece are provided with inclined planes, so that the plate with the embedded fixing piece and the plate with the T-shaped connecting screw are closer and closer under the action of the inclined planes in the process of forcibly moving the plate. In the process of exerting force, the T-shaped connecting screw and the inverted tooth thread structure of the embedded fixing piece can prevent the T-shaped connecting screw and the embedded fixing piece from falling off from the plate. During the process of exerting force (beating), a 'beating' sound can be heard, the fastening convex point of the 'T' -shaped connecting screw is superposed with the fastening concave point of the embedded fixing piece, and at the moment, the connecting piece is connected in place and is completely connected with the longitudinal plate transversely. Due to the fastening concave points and the fastening convex points, the consistency of the positions of all the connecting pieces after being fastened is ensured, and the condition that the connection fails due to the fact that the plates are loosened due to the stress of the connecting pieces after the plates are connected is also ensured.

When the connecting piece is disassembled, the plate with the connecting screw rod is patted towards the upper opening by force from the direction of the lower opening of the inclined fiber, the fastening convex points of the connecting piece can instantly fall off from the fastening concave points, and the aim of easy disassembly is fulfilled.

Although the invention has been described herein with reference to the illustrated embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications may be made to the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure herein. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A hidden plate type connecting piece is characterized by comprising a T-shaped connecting screw rod, a pre-buried fixing piece and an expansion nail; the outer side of one end of the T-shaped connecting screw is provided with inverted tooth threads, the other end of the T-shaped connecting screw is provided with a clamping plate, an expansion hole is formed in a hollow mode, the front end of the bottom of the clamping plate is provided with a fastening convex point, two sides of the top of the clamping plate are provided with clamping inclined planes, and the two clamping inclined planes are arranged in a non-parallel mode and are closest to one end of the clamping convex point; the side surface of the embedded fixing piece is provided with inverted tooth threads, the embedded fixing piece is hollow to form an expansion hole, an inclined plane limiting area is arranged above the expansion hole, a clamping chute and a fastening concave point are arranged in the inclined plane limiting area, and a clamping plate can be inserted into the inclined plane limiting area from one end of the clamping chute, so that the clamping inclined plane slides into the clamping chute, and the fastening convex point slides into the fastening concave point; the expansion holes of the T-shaped connecting screw and the pre-buried fixing piece are respectively matched with one expansion nail.

2. The invisible plate connector of claim 1, wherein the beveled limiting region has an upper opening and a lower opening, the upper opening having a width greater than a width of the lower opening, the fastening recess being disposed at the lower opening.

3. The invisible plate connector of claim 1, wherein the body of said snap plate is trapezoidal in shape.

4. The invisible plate connector of claim 1, wherein the front end face of the snap plate is arcuate.

5. The invisible plate connector of claim 1, wherein the fastening projections are semi-cylinders having a semi-circular cross-section.

6. The invisible plate type connecting piece according to claim 1, wherein the side profile of the pre-embedded fixing piece is formed by connecting arc-shaped surfaces.