Invisible connecting structure for vertical leg and cross beam of table leg

Abstract

The utility model relates to an invisible connecting structure for a vertical leg and a cross beam of a table leg, which is characterized in that the vertical leg is divided into an inner supporting leg and an outer supporting leg, the inner supporting leg and the cross beam are assembled by using a screw, the outer supporting leg is buckled and covered on the outer side of the inner supporting leg to be combined with the inner supporting leg to form a complete integrated vertical leg structure, and the screw is hidden in the vertical leg. Therefore, the utility model not only has a very simple shape and high assembly efficiency, but also has very firm mechanical strength.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a connection structure of a vertical leg and a crossbeam of a table leg. Background Art

[0002] In the prior art, table legs and beams are mostly connected by screws, but the screws in this connection structure are exposed and affect the appearance; in order to enhance the aesthetics of the connection structure, some table legs and beams are formed in one piece, but this structure causes the table legs and beams to be larger in size and difficult to transport. The application number is 202120216346.0, and the name is “A hidden connection structure between table legs and table frame beams”. In order to solve the above technical problems, the disclosed technical solution is to provide a U-shaped connecting groove on the upper side wall of the table leg, and the screw is placed in the U-shaped connecting groove and then screwed into the nut on the beam to fix the table leg and the beam. However, this technology still has the following technical problems in use:

[0003] First, as the instructions attached Figure 1 As shown, the table legs of the technical solution are composed of multiple parts with different structures, such as an upper part, a middle part, a lower part and a table foot. Therefore, it is necessary to prepare multiple different molds when manufacturing the table legs, and these parts need to be assembled together. This results in many parts and processes in the manufacturing process of the table legs, which makes the manufacturing cost high; and the mechanical strength of the connection between the parts is also poor, so that the load-bearing capacity of the structure is poor, and it is not suitable for use on larger tables, and the scope of application is narrow; in addition, the connection between these parts is exposed, which makes the shape of the table legs not simple enough, and is not suitable for the current popular simple decorative style; at the same time, the connection is easy to hide dust, which is not conducive to keeping clean.

[0004] Secondly, the screw is inserted into the U-shaped connecting groove so that the screw head is placed in the cavity on the upper part of the table leg. In this way, the wrench needs to be inserted into the cavity on the upper part of the table leg when tightening the screw head, which greatly limits the rotation range of the wrench, making it inconvenient to operate and resulting in low installation efficiency; and there is a lack of a limiting structure between the screw and the U-shaped groove. When the screw becomes loose, the screw can easily fall out of the upper end of the U-shaped connecting groove, causing the table leg to fall off the first table frame beam. Therefore, this technical solution also has the technical problem of poor firmness and stability of the connection between the table leg and the first table frame. Utility Model Content

[0005] The purpose of the present invention is to solve the above-mentioned problems and shortcomings, and to provide an invisible connection structure between the vertical legs and the cross beam of a table leg. The vertical legs are divided into an inner leg and an outer leg, and the inner leg and the cross beam are assembled with screws. The outer leg is buckled and covered on the outer side of the inner leg to form a complete integrated vertical leg structure with the inner leg. The screws are hidden in the vertical legs, so that the present invention not only has a very simple shape, high assembly efficiency, and a firm connection between the vertical legs and the cross beam, but also has a very strong load-bearing capacity.

[0006] The technical solution of the utility model is implemented as follows: a vertical leg and a horizontal beam invisible connection structure of a table leg, including a vertical leg, a horizontal beam, and a screw, and its characteristics are: the vertical leg includes an inner supporting leg and an outer supporting leg, and screw holes are respectively provided on the inner supporting leg and the end of the horizontal beam, and the screw passes through the screw hole of the inner supporting leg and is locked into the screw hole of the horizontal beam, so that the end of the horizontal beam is assembled with the inner side surface of the inner supporting leg; the outer supporting leg is buckled and covered on the outer side of the inner supporting leg to form a complete integrated vertical leg structure with the inner supporting leg, and the screw is hidden in the vertical leg.

[0007] Furthermore, a first groove is provided on the inner side surface of the inner supporting foot, and the end of the crossbeam is embedded in the first groove.

[0008] Furthermore, a second groove is provided on the outer side surface of the inner supporting foot, and the screw hole is arranged in the bottom of the second groove.

[0009] Furthermore, buckling grooves are provided on both sides of the inner supporting foot along its length direction, and buckling plates are provided on both sides of the outer supporting foot respectively. The outer supporting foot is buckled on the buckling groove through the buckling plate to form a complete integrated vertical foot structure with the inner supporting foot.

[0010] Furthermore, a buckle hook groove is provided on the bottom of the buckle groove along its length direction, and a convex strip which is matched and buckled with the buckle hook groove is correspondingly provided on the inner side of the buckle plate.

[0011] Furthermore, the outer supporting legs and the inner supporting legs are hollow structural profile tube bodies, and reinforcing ribs are provided inside the hollow structural profile tube bodies.

[0012] Beneficial effects of the utility model:

[0013] First, the vertical foot is composed of an inner foot and an outer foot, which can greatly reduce the number of components of the vertical foot of the utility model, thereby reducing its production cost; and there is no component connection in the height direction of the vertical foot, so that the vertical foot has greater mechanical strength and good load-bearing performance, and at the same time, the inner foot and the outer foot jointly support the desktop, thereby further enhancing the load-bearing performance of the vertical foot, so that the vertical foot can be used on a larger table, with a wider range of applications; in addition, the outer foot is buckled and covered on the outside of the inner foot, and the screws are hidden in the vertical foot, so that the shape of the utility model is very simple, especially suitable for matching with the current popular simple style decoration, and it is not easy to hide dust, which is conducive to keeping clean and hygienic.

[0014] Secondly, the screws of the utility model pass through the screw holes of the inner supporting legs and are locked into the screw holes of the cross beam, so that the end of the cross beam is assembled with the inner side surface of the inner supporting legs. In this way, the screws are tightened from the outer side surface of the inner supporting legs, so the operation is not restricted by space, so that the inner supporting legs and the cross beam can be assembled together very quickly and conveniently, greatly improving production efficiency; and the screws are limited in the screw holes of the inner supporting legs, so that even if the screws become loose, the inner supporting legs are not easy to fall off the cross beam, thereby making the firmness and stability of the utility model better.

[0015] In addition, the inner and outer legs can be set to different colors, so that the vertical legs have a stronger sense of structure and are easier to match with decorations of different styles, further enhancing the flexibility of use of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the split structure of the utility model.

[0018] Figure 3 It is a bottom view structural schematic diagram of the bottom end cover of the utility model. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0020] like Figure 1 , 2As shown, the utility model discloses an invisible connection structure between a vertical leg and a horizontal beam of a table leg, comprising a vertical leg 10, a horizontal beam 20, and a screw 30. In order to achieve the purpose of the utility model, the vertical leg 10 comprises an inner leg 2 and an outer leg 1. Screw holes 40 are respectively provided on the inner leg 2 and the end of the horizontal beam 20. The screw 30 passes through the screw hole 40 of the inner leg 2 and is locked into the screw hole 40 of the horizontal beam 20, so that the end of the horizontal beam 20 is assembled with the inner side surface of the inner leg 2; the outer leg 1 is snapped and covered on the outer side of the inner leg 2 to form a complete integrated vertical leg structure with the inner leg 2, and the screw 30 is hidden in the vertical leg 10; in this way, the horizontal beam 20 and the vertical leg 10 can be packaged and transported separately, thereby greatly reducing the cost of packaging and transportation.

[0021] like Figure 2 As shown, a first groove 22 is further provided on the inner side surface of the inner leg 2, and the end of the beam 20 is embedded in the first groove 22; in this way, the end of the beam 20 is hidden in the first groove 22, making the appearance of the utility model more concise; and during installation, the first groove 22 can also pre-position the end of the beam 20 to prevent it from shifting in the horizontal direction, which is conducive to accelerating assembly efficiency.

[0022] like Figure 2 As shown, a second groove 23 is provided on the outer side surface of the inner leg 2, and the screw hole 40 is arranged in the bottom of the second groove 23; in this way, the screw 30 is completely hidden in the second groove 23, and when the outer leg 1 is buckled and placed on the outer side of the inner leg 2, the screw 30 will not constitute an obstacle, so that the outer leg 1 and the inner leg 2 can be buckled more smoothly and firmly.

[0023] In order to make the outer leg 1 be able to be quickly buckled onto the inner leg 2, as shown in the figure: Figure 2 As shown, the inner leg 2 is provided with snap-fit ​​grooves 21 on both sides along its length direction, and the outer leg 1 is provided with snap-fit ​​plates 11 on both sides respectively. The outer leg 1 is snapped into the snap-fit ​​grooves 21 through the snap-fit ​​plates 11 to form a complete integrated vertical leg structure with the inner leg 2.

[0024] like Figure 2As shown, a hook groove 211 is further provided on the bottom of the buckling groove 21 along its length direction, and a convex strip 111 is correspondingly provided on the inner side of the buckling plate 11 for buckling with the hook groove 211; in this way, when buckling the outer leg 1 on the inner leg 2, first press the buckling plates 11 on both sides of the outer leg 1 on the notch of the buckling groove 21, and then press the outer leg 1 hard, the convex strip 111 is embedded in the hook groove 21, and the buckling plates 11 on both sides are firmly buckled on the buckling groove 21 through elastic deformation, so that the two side surfaces of the outer leg 1 are flush with the two side surfaces of the inner leg 2, ensuring the simplicity of the vertical leg structure; under the dual effects of the buckling plate 11 and the buckling groove 21, the convex strip 111 and the hook groove 211, the outer leg 1 can be buckled on the inner leg 2 very firmly and is not easy to fall off.

[0025] like Figure 2 As shown, the outer leg 1 and the inner leg 2 are hollow structural profile tube bodies, and reinforcing ribs 12 are also provided inside the hollow structural profile tube bodies. Aluminum profile materials are preferably used during production, so that they can be produced through mature extrusion technology and then cut into different lengths according to the height of the table, thereby reducing material costs and inventory pressure.

[0026] like Figure 2 As shown, the top and bottom ends of the outer leg 1 and the inner leg 2 are also covered with a top cover 3 and a bottom cover 4 respectively, and a plug-in protrusion 6 is provided on the top cover 3 and the bottom cover 4 respectively; in this way, the top cover 3 and the bottom cover 4 can cover the ports of the outer leg 1 and the inner leg 2, which can play a good decorative role on the one hand, and can also be waterproof and dustproof on the other hand, and prevent the table from scratching the floor when moving.

[0027] like Figure 2 , 3 As shown, an adjusting foot 5 is also installed at the bottom of the bottom end cover 4; in this way, when the ground is uneven, the levelness of the table can be adjusted by adjusting the foot 5 to ensure the stability of the table.

[0028] like Figure 3 As shown, the bottom of the bottom end cover 4 is also provided with an integrally formed storage groove 41 for storing the adjusting foot 5, so that when the adjusting foot 5 is not needed to adjust the levelness of the table, the adjusting foot 5 can be stored in the storage groove 41, so that the appearance of the table remains simple.

[0029] like Figure 2 As shown, the outer support leg 1 is composed of an outer arc portion 13 and snap-fit ​​plates 11 arranged on both sides of the outer arc portion 13. The arrangement of the outer arc portion 13 can make the appearance of the vertical leg 10 more artistic and more in line with the aesthetic taste of today's young people; and it is not easy to bump into the human body during use, and has higher safety performance.

Claims

1. An invisible connection structure between a vertical leg and a horizontal beam of a table leg, comprising a vertical leg (10), a horizontal beam (20), and a screw (30), characterized in that: The vertical foot (10) comprises an inner foot (2) and an outer foot (1); screw holes (40) are respectively provided on the inner foot (2) and at the end of the cross beam (20); the screw (30) passes through the screw hole (40) of the inner foot (2) and is locked into the screw hole (40) of the cross beam (20), so that the end of the cross beam (20) and the inner side surface of the inner foot (2) are assembled together; the outer foot (1) is buckled and covered on the outer side of the inner foot (2) to form a complete integrated vertical foot structure with the inner foot (2); the screw (30) is hidden in the vertical foot (10).

2. The invisible connection structure between the vertical leg and the horizontal beam of the table leg according to claim 1, characterized in that: A first groove (22) is also provided on the inner side surface of the inner support foot (2), and the end of the crossbeam (20) is embedded in the first groove (22).

3. The invisible connection structure between the vertical leg and the horizontal beam of the table leg according to claim 1 is characterized in that: A second groove (23) is provided on the outer side surface of the inner support foot (2), and the screw hole (40) is arranged in the bottom of the second groove (23).

4. The invisible connection structure between the vertical leg and the horizontal beam of the table leg according to claim 1, characterized in that: The inner supporting foot (2) is provided with buckling grooves (21) on both sides along its length direction, and buckling plates (11) are provided on both sides of the outer supporting foot (1) respectively and correspondingly, and the outer supporting foot (1) is buckled in the buckling grooves (21) by the buckling plates (11) to be combined with the inner supporting foot (2) to form a complete integrated vertical foot structure.

5. The invisible connection structure between the vertical leg and the horizontal beam of the table leg according to claim 4, characterized in that: A buckle hook groove (211) is also provided on the bottom of the buckle groove (21) along its length direction, and a convex strip (111) is correspondingly provided on the inner side of the buckle plate (11) for buckling with the buckle hook groove (211).

6. The invisible connection structure between the vertical leg and the horizontal beam of the table leg according to claim 4, characterized in that: The outer supporting leg (1) and the inner supporting leg (2) are hollow structural profile tube bodies, and reinforcing ribs (12) are also provided inside the hollow structural profile tube bodies.

7. The invisible connection structure between the vertical leg and the horizontal beam of the table leg according to claim 6, characterized in that: The top and bottom ends of the outer supporting leg (1) and the inner supporting leg (2) are respectively covered with a top cover (3) and a bottom cover (4), and a plug-in convex portion (6) is respectively provided on the top cover (3) and the bottom cover (4).

8. The invisible connection structure between the vertical leg and the horizontal beam of the table leg according to claim 7, characterized in that: An adjusting foot (5) is also installed at the bottom of the bottom end cover (4).

9. The invisible connection structure between the vertical leg and the horizontal beam of the table leg according to claim 8, characterized in that: The bottom of the bottom end cover (4) is also provided with an integrally formed storage groove (41) for storing the adjustment foot (5).

10. The invisible connection structure between the vertical leg and the horizontal beam of the table leg according to claim 6, characterized in that: The outer supporting leg (1) is composed of an outer arc-shaped portion (13) and buckling plates (11) arranged on both sides of the outer arc-shaped portion (13).

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