Steel frame connecting structure and table and chair

Abstract

The utility model discloses a steel frame connecting structure, including first tubal body, second tubal body, first laminating piece and second laminating piece, the tub wall of second tubal body is provided with the gap, first laminating piece is located one end of first tubal body, second laminating piece is located in the gap of second tubal body, second tubal body and first tubal body sleeve set cooperation together, first laminating piece is set up with first fastening screw hole, second laminating piece is set up with second fastening screw hole, and fastening screw and first fastening screw hole and second fastening screw hole cooperation together, fastening screw is located in the gap. The application also discloses a table and chair comprising the steel frame connecting structure.

Description

Technical Field

[0001] This utility model relates to the field of household products, and in particular to a steel frame connection structure. Background Technology

[0002] Currently, many office desks and chairs use steel pipe frames for their main structure. Since directly welding the steel pipes together is inconvenient for storage and transportation, the steel pipes in current office desks and chairs are secured with bolts or similar fasteners. During storage and transportation, they are in a disassembled state, and are then assembled and secured with bolts upon arrival at the destination. A common lap joint structure between two steel pipes is shown in patent publication CN206438602U. In this structure, two steel pipes are interlocked, and bolts lock them together. However, this connection structure has a problem: the bolts are exposed, and their securing effect deteriorates when exposed to external objects. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a steel frame connection structure. By connecting the first and second bonding pieces, the first and second tube bodies are fastened together. At the same time, the fastening screws are located inside the notch of the second tube body, achieving concealed installation of the fastening screws and ensuring stable installation.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A steel frame connection structure includes a first tube, a second tube, a first fitting piece, and a second fitting piece. The second tube has a notch in its wall. The first fitting piece is located at one end of the first tube, and the second fitting piece is located within the notch of the second tube. The second tube and the first tube are fitted together. The first fitting piece has a first fastening screw hole, and the second fitting piece has a second fastening screw hole. A fastening screw fits into both the first and second fastening screw holes, and the fastening screw is located within the notch.

[0006] In this type of steel frame connection structure, a first fitting piece is provided on the first tube body, and a second fitting piece is provided on the second tube body. After the second tube body is fitted onto the first tube body, the second fitting piece and the first fitting piece are in an overlapping state. After the first fitting piece and the second fitting piece are in an overlapping state, the fastening screw locks the first fitting piece and the second fitting piece together tightly, thereby realizing the fastening of the first tube body and the second tube body together by screws. At the same time, since the fastening screw is located in the notch of the second tube body, the fastening screw is concealed, which can ensure the installation stability of the fastening screw and prevent foreign objects from touching the fastening screw.

[0007] In summary, in this structure, the fastening screw fastens the first tube body and the second tube body together by connecting the first and second fitting pieces. At the same time, the fastening screw is located in the notch of the second tube body, which realizes the concealed installation of the fastening screw and ensures the stability of the fastening screw installation.

[0008] Optionally, the first bonding piece and the second bonding piece are in a parallel and tightly fitted state.

[0009] The first and second bonding pieces are in a bonded state to ensure the stability of the connection between the first and second tubes.

[0010] Optionally, the outer wall of the first tube is attached to the inner wall of the second tube, and the central axis of the first tube coincides with the central axis of the second tube.

[0011] The outer wall of the first tube is pressed tightly against the inner wall of the second tube to ensure the stability of the connection between the two.

[0012] Optionally, the first and second bonding pieces are not perpendicular to the central axis.

[0013] The central axis of the first tube coincides with the central axis of the second tube, and the first and second bonding pieces are not perpendicular to the central axes.

[0014] Optionally, the first tube body is provided with an installation clamp, and the first fitting piece is fixedly disposed in the installation clamp.

[0015] Specifically, the first bonding piece is welded and fixed inside the first tube, and the second bonding piece is welded and fixed inside the second tube.

[0016] Optionally, it may also include a support leg, with the first tube body disposed on the support leg.

[0017] Specifically, in this structure, the first tube, the second tube, the first bonding piece, and the second bonding piece are all made of steel.

[0018] Optionally, the fastening screw is perpendicular to the first and second bonding pieces.

[0019] Optionally, the first tube is a square tube and the second tube is a square tube.

[0020] A table and chair set, including the connection structure described above.

[0021] The beneficial effects of this utility model are: by connecting the first bonding piece and the second bonding piece, the first tube body and the second tube body are fastened together, and the fastening screw is located in the notch of the second tube body, thus achieving concealed installation of the fastening screw and ensuring the stable installation of the fastening screw. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram showing the state when the first tube and the second tube are not fitted together.

[0024] Figure 2 This is a schematic diagram showing the state when the first tube and the second tube are assembled together.

[0025] The figures are labeled as follows: 1. First tube body; 101. Mounting clamp; 2. First fitting piece; 201. First fastening screw hole; 3. Support leg; 4. Fastening screw; 5. Second tube body; 501. Notch; 6. Second fitting piece; 601. Second fastening screw hole. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] Example 1

[0030] As attached Figure 1 and appendixFigure 2 As shown, a steel frame connection structure includes a first tube 1, a second tube 5, a first fitting piece 2, and a second fitting piece 6. A notch 501 is provided on the wall of the second tube 5. The first fitting piece 2 is provided at one end of the first tube 1, and the second fitting piece 6 is provided in the notch 501 of the second tube 5. The second tube 5 and the first tube 1 are fitted together. A first fastening screw hole 201 is provided on the first fitting piece 2, and a second fastening screw hole 601 is provided on the second fitting piece 6. A fastening screw 4 is fitted together with the first fastening screw hole 201 and the second fastening screw hole 601. The fastening screw 4 is located in the notch 501.

[0031] In this type of steel frame connection structure, a first fitting piece 2 is provided on the first tube body 1, and a second fitting piece 6 is provided on the second tube body 5. After the second tube body 5 is fitted onto the first tube body 1, the second fitting piece 6 and the first fitting piece 2 are in an overlapping state. After the first fitting piece 2 and the second fitting piece 6 are in an overlapping state, the fastening screw 4 locks the first fitting piece 2 and the second fitting piece 6 together, thereby realizing the fastening of the first tube body 1 and the second tube body 5 together by screws. At the same time, since the fastening screw 4 is located in the notch 501 of the second tube body 5, the fastening screw 4 is concealed, which can ensure the installation stability of the fastening screw 4 and prevent foreign objects from easily touching the fastening screw 4.

[0032] In summary, in this structure, the fastening screw 4 fastens the first tube 1 and the second tube 5 together by connecting the first fitting piece 2 and the second fitting piece 6. At the same time, the fastening screw 4 is located in the notch 501 of the second tube 5, which realizes the concealed installation of the fastening screw 4 and ensures the stable installation of the fastening screw 4.

[0033] As attached Figure 1 and appendix Figure 2 As shown, the first bonding piece 2 and the second bonding piece 6 are in a parallel and tightly bonded state.

[0034] The first bonding piece 2 and the second bonding piece 6 are in a bonded state to ensure the connection stability between the first tube body 1 and the second tube body 5.

[0035] As attached Figure 1 and appendix Figure 2 As shown, the outer wall of the first tube 1 is attached to the inner wall of the second tube 5, and the central axis of the first tube 1 coincides with the central axis of the second tube 5.

[0036] The outer wall of the first tube 1 is close to the inner wall of the second tube 5 to ensure the stability of the connection between the two.

[0037] As attached Figure 1 and appendix Figure 2 As shown, the first bonding piece 2 and the second bonding piece 6 are not perpendicular to the central axis.

[0038] The central axis of the first tube 1 coincides with the central axis of the second tube 5, and the first bonding piece 2 and the second bonding piece 6 are not perpendicular to the central axis.

[0039] As attached Figure 1 and appendix Figure 2 As shown, the first tube body 1 has an installation clamp 101, and the first bonding piece 2 is fixedly installed in the installation clamp 101.

[0040] Specifically, the first bonding piece 2 is welded and fixed inside the first tube body 1, and the second bonding piece 6 is welded and fixed inside the second tube body 5.

[0041] As attached Figure 1 and appendix Figure 2 As shown, it also includes a support leg 3, and the first tube body 1 is disposed on the support leg 3.

[0042] Specifically, in this structure, the first tube 1, the second tube 5, the first bonding piece 2, and the second bonding piece 6 are all made of steel.

[0043] As attached Figure 1 and appendix Figure 2 As shown, the fastening screw 4 is perpendicular to the first bonding piece 2 and the second bonding piece 6.

[0044] As attached Figure 1 and appendix Figure 2 As shown, the first tube 1 is a square tube, and the second tube 5 is a square tube.

[0045] Specifically, in this embodiment, the support leg is a round or square tube, or it can be a steel tube of other shapes.

[0046] Specifically, in this embodiment, the outer wall of the first tube has a certain inclination and fits tightly with the inner wall of the second tube, which ensures a stable connection between the second tube and the first tube.

[0047] Example 2

[0048] A table and chair set includes a steel frame connection structure as shown in Example 1.

[0049] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel frame connection structure, characterized in that, The device includes a first tube body, a second tube body, a first fitting piece, and a second fitting piece. The second tube body has a notch in its wall. The first fitting piece is located at one end of the first tube body, and the second fitting piece is located inside the notch of the second tube body. The second tube body and the first tube body are fitted together. The first fitting piece has a first fastening screw hole, and the second fitting piece has a second fastening screw hole. A fastening screw fits into the first fastening screw hole and the second fastening screw hole, and the fastening screw is located inside the notch.

2. The steel frame connection structure according to claim 1, characterized in that, The first bonding piece and the second bonding piece are in a parallel and tightly fitted state.

3. The steel frame connection structure according to claim 1, characterized in that, The outer wall of the first tube is attached to the inner wall of the second tube, and the central axis of the first tube coincides with the central axis of the second tube.

4. The steel frame connection structure according to claim 3, characterized in that, The first and second bonding pieces are not perpendicular to the central axis.

5. The steel frame connection structure according to claim 1, characterized in that, The first tube body has an installation clamp, and the first fitting piece is fixedly installed in the installation clamp.

6. The steel frame connection structure according to claim 1, characterized in that, It also includes a support leg, on which the first tube body is disposed.

7. The steel frame connection structure according to claim 1, characterized in that, The fastening screw is perpendicular to the first and second bonding pieces.

8. The steel frame connection structure according to claim 1, characterized in that, The first tube is a square tube, and the second tube is a square tube.

9. A table and chairs, characterized in that, Includes the connection structure as described in any one of claims 1 to 8.

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