CN220378626U - Dovetail structure for furniture - Google Patents

Abstract

The utility model provides a dovetail structure for furniture, which relates to the technical field of dovetail structures for furniture, and comprises a first connecting plate, a dovetail groove, side surfaces, a bottom surface, a second connecting plate and an extension part, wherein the width of the extension part is not larger than the minimum distance between two side surfaces in the dovetail groove, one end of the extension part is provided with a clamping block which is completely matched with the dovetail groove, the thickness of the extension part is smaller than that of the second connecting plate, the dovetail structure also comprises a fastening block, the fastening block is provided with a fastening groove which is matched with the extension part, two opposite side surfaces in the dovetail groove are provided with angles with the surface of the first connecting plate and the bottom surface of the dovetail groove, and compared with the common dovetail groove which is only provided with angles with the bottom surface, the dovetail groove can generate anti-falling capacity in horizontal and vertical directions when the connection of the clamping block and the dovetail groove is realized, and the anti-falling structure of the clamping block from the dovetail groove in the vertical direction can be effectively prevented.

Description

Dovetail structure for furniture

Technical Field

The utility model relates to the technical field of dovetail structures for furniture, in particular to a dovetail structure for furniture.

Background

The dovetail is a right-angle connection joint of flat timber, and the trapezoidal tenon can enable the corner of a workpiece to be connected with high strength, so that the dovetail is prevented from being separated when stressed, and the dovetail is widely applied to wooden furniture due to good mechanical properties.

Taking fig. 1 as an example, if the dovetail groove in fig. 1 is a common dovetail groove structure, the dovetail groove can play a role when the second connecting plate moves away from the first connecting plate in the horizontal direction, the connection between the first connecting plate and the second connecting plate can be stably maintained, and when the second connecting plate moves away from the first connecting plate in the vertical direction, the dovetail groove cannot play a role of limiting the second connecting plate to separate, so that in daily use, the stability of the common dovetail structure is still insufficient under the condition.

Disclosure of Invention

The utility model aims to provide a dovetail structure for furniture, and aims to solve the problem that the stability of a common dovetail structure in the prior art is still insufficient in certain scenes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a dovetail structure for furniture, includes first connecting plate, the dovetail has been seted up to the one end of first connecting plate, the dovetail has two sides of mutual symmetry and a bottom surface, and two sides all reduce gradually in the past to the back and from the bottom to the distance between the two, still include the second connecting plate, the one end of second connecting plate is provided with the extension, the length of extension is not less than the thickness of first connecting plate, the width of extension is not greater than the minimum distance between the both sides face in the dovetail, the one end of extension is provided with the fixture block with the dovetail complete fit, the thickness of extension is less than the thickness of second connecting plate, still include the fastening piece, set up on the fastening piece with extension matched with fastening groove.

Preferably, after the first connecting plate and the second connecting plate are clamped with each other, the upper surface of the extension part and the upper surface of the second connecting plate are positioned on the same plane, and the fastening block is clamped with the extension part through the lower surface of the extension part.

Preferably, the length of the extension portion, the thickness of the first connecting plate and the length of the clamping block are all equal.

Preferably, the thickness of the extension is not less than half the thickness of the second connection plate.

The beneficial effects of the utility model are as follows:

the two opposite side surfaces in the dovetail groove are provided with angles with the surface of the first connecting plate and the bottom surface of the dovetail groove, compared with the common dovetail groove which is only provided with angles with the bottom surface, the dovetail groove can generate the anti-falling capacity in the horizontal and vertical directions when the connection between the clamping block and the dovetail groove is realized, and the clamping block can be effectively prevented from falling off the structure in the vertical direction from being more stable.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

FIG. 2 is a schematic view of a dovetail groove in accordance with an embodiment of the present utility model.

Fig. 3 is a schematic structural diagram of a clamping block according to an embodiment of the present utility model.

Fig. 4 is a schematic structural view of an extension portion according to an embodiment of the present utility model.

Fig. 5 is a schematic structural view of a fastening block according to an embodiment of the present utility model.

In the figure: 1. a first connection plate; 2. a dovetail groove; 3. a side surface; 4. a bottom surface; 5. a second connecting plate; 6. an extension; 7. a clamping block; 8. a fastening block; 9. fastening grooves.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings.

Taking fig. 1 as an example, if the common dovetail groove 2 in fig. 1 is a common dovetail groove 2 structure, when the second connecting plate 5 moves away from the first connecting plate 1 in the horizontal direction, the dovetail groove 2 can play a role, the first connecting plate 1 and the second connecting plate 5 can be stably connected and kept, when the second connecting plate 5 moves away from the first connecting plate 1 in the vertical direction, the dovetail groove 2 cannot play a role of limiting the second connecting plate 5 to separate, and in daily use, when the common dovetail structure is still insufficient in stability under the condition, the application provides a new dovetail structure to solve the technical problem.

As shown in fig. 1-5, a dovetail structure for furniture comprises a first connecting plate 1, wherein a dovetail groove 2 is formed in one end of the first connecting plate 1, the dovetail groove 2 is provided with two side surfaces 3 and a bottom surface 4 which are symmetrical to each other, the distance between the two side surfaces 3 is gradually reduced from front to back and from bottom to top, the dovetail structure further comprises a second connecting plate 5, one end of the second connecting plate 5 is provided with an extension part 6, the length of the extension part 6 is not smaller than the thickness of the first connecting plate 1, the width of the extension part 6 is not larger than the minimum distance between the two side surfaces 3 in the dovetail groove 2, one end of the extension part 6 is provided with a clamping block 7 which is completely matched with the dovetail groove 2, the thickness of the extension part 6 is smaller than the thickness of the second connecting plate 5, and the dovetail structure further comprises a fastening block 8, and a fastening groove 9 which is matched with the extension part 6 is formed in the fastening block 8.

The two opposite side surfaces 3 in the dovetail groove 2 are provided with angles with the surface of the first connecting plate 1 and the bottom surface 4 of the dovetail groove 2, compared with the common dovetail groove 2 which is only provided with angles with the bottom surface 4, the dovetail groove 2 can generate the anti-falling capability in the horizontal and vertical directions when the connection between the clamping block 7 and the dovetail groove 2 is realized, and the clamping block 7 can be effectively prevented from falling out of the dovetail groove 2 in the vertical direction to be more stable in structure.

The connection between the fastening block 8 and the limiting part can be achieved in two ways, optionally, the width of the fastening groove 9 is slightly smaller than the width of the extending part 6, the fastening block 8 and the limiting part are connected through interference fit, optionally, the width of the fastening groove 9 is equal to the width of the limiting part, and the inner surface of the fastening groove 9 can be coated with woodworking glue on one side and then the fastening block 8 is matched with the extending part 6.

During installation, the extension part 6 is placed in the dovetail groove 2 at first, the clamping blocks 7 and the second connecting plates 5 are respectively located at two sides of the first connecting plate 1, then the second connecting plates 5 are gradually moved, the extension part 6 continuously and outwards falls out of the dovetail groove 2, meanwhile, the clamping blocks 7 continuously enter the dovetail groove 2, after the clamping blocks 7 completely enter the dovetail groove 2, the extension part 6 completely falls out of the dovetail groove 2, the side surfaces 3 of the clamping blocks 7 at the moment are all in fit contact with the dovetail groove 2, the clamping blocks 7 cannot shake in the dovetail groove 2 and can only move along the moving direction of the extension part 6, and the movement of the clamping blocks 7 is further limited by matching the fastening grooves 9 on the fastening blocks 8 with the extension part 6, so that the clamping blocks 7 and the dovetail groove 2 are matched tightly and cannot move, and the connection is stable enough.

Further, after the first connecting plate 1 and the second connecting plate 5 are clamped with each other, the upper surface of the extension portion 6 and the upper surface of the second connecting plate 5 are located on the same plane, and the fastening block 8 is clamped with the extension portion 6 through the lower surface of the extension portion 6, so that the inward bending resistance of the second connecting plate 5 is improved.

Further, the length of the extension portion 6, the thickness of the first connecting plate 1 and the length of the clamping block 7 are all equal, when the extension portion 6 just breaks away from the dovetail groove 2, the clamping block 7 completely enters the dovetail groove 2, since the thickness of the extension portion 6 is smaller than that of the second connecting plate 5, the stability of the extension portion 6 and the second connecting plate 5 can be increased by reducing the length of the extension portion 6, when the extension portion 6 is longer, the stability is weaker, the breakage easily occurs, the risk of breakage of the extension portion 6 can be reduced by reducing the length of the extension portion 6, and the shortest length of the extension portion 6 is equal to the thickness of the first connecting plate 1.

Further, the thickness of the extension portion 6 is not less than half the thickness of the second connection plate 5, in order to further ensure the strength of the extension portion 6, reduce the risk of breakage of the extension portion 6, and optionally, the thickness of the extension portion 6 is equal to between half and two thirds of the thickness of the second connection plate 5.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (4)

1. The utility model provides a dovetail structure for furniture, its characterized in that includes first connecting plate (1), dovetail (2) have been seted up to the one end of first connecting plate (1), dovetail (2) have two sides (3) and a bottom surface (4) of mutual symmetry, and the distance between two sides (3) all reduces gradually from front to back and from the bottom to top, still includes second connecting plate (5), the one end of second connecting plate (5) is provided with extension (6), the length of extension (6) is not less than the thickness of first connecting plate (1), the width of extension (6) is not greater than the minimum distance between both sides face (3) in dovetail (2), the one end of extension (6) be provided with fixture block (7) with dovetail (2) complete fit, the thickness of extension (6) is less than the thickness of second connecting plate (5), still includes fastening block (8), set up on fastening block (8) with extension (6) matched with fastening groove (9).

2. The dovetail structure for furniture according to claim 1, wherein after the first connection board (1) and the second connection board (5) are clamped to each other, the upper surface of the extension portion (6) and the upper surface of the second connection board (5) are in the same plane, and the fastening block (8) is clamped to the extension portion (6) through the lower surface of the extension portion (6).

3. Dovetail construction for furniture according to claim 2, characterized in that the length of the extension (6), the thickness of the first connection plate (1), the length of the clamping block (7) are all equal.

4. A dovetail construction for furniture according to claim 3, wherein the thickness of said extension (6) is not less than half the thickness of the second web (5).