Mounting structure of support arm

Abstract

The utility model relates to the technical field of seats, and discloses a support arm mounting structure which comprises a support column, a cross beam and a support arm, the number of the supporting columns is multiple, the multiple supporting columns are arranged in parallel left and right, notches extending transversely are formed in the multiple supporting columns, and the cross beams are fixedly arranged in the notches; the two supporting arms are fixedly connected with the left side and the right side of the cross beam through second locking pieces correspondingly. The supporting arms are fixedly connected with the corresponding supporting columns through first locking pieces. The support arm is fixed on the cross beam through the second locking piece; the notch is formed in the supporting column, the cross beam is clamped into the notch, the effect of preliminarily fixing the cross beam is achieved, then the supporting arm is fixed to the supporting column through the first locking piece, the cross beam is synchronously fixed to the supporting column, and the assembling precision of the installation structure can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to an installation structure of a support arm. Background Art

[0002] Desks and chairs are generally composed of a support structure, a table top, a seat board and a backrest. Specifically, the support structure generally includes multiple support columns and a crossbeam for connecting the multiple support columns. The crossbeam is generally fixed to the support column by welding before leaving the factory to form an overall frame. The arms are then assembled on the left and right sides of the crossbeam, and the seat board is assembled between the two arms. However, manual welding is prone to installation deviations, making it difficult or impossible to install the seat board later. Moreover, welding will form welding spots at the welding points, which is not aesthetically pleasing. In addition, the frame welded before leaving the factory is large in size, and the transportation cost is very high for long-distance transportation such as overseas transportation.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a mounting structure for a support arm, aiming to improve the mounting accuracy of two support arms and a supporting structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mounting structure for an arm, comprising a support column, a crossbeam, and an arm; the support columns are provided in plurality, and the plurality of support columns are arranged in parallel left and right, the plurality of support columns are provided with transversely extending notches, and the crossbeam is fixedly arranged in the notches; the arm is provided in plurality, and the left and right sides of the crossbeam are respectively fixedly connected by a second locking member; the arm is fixedly connected to the corresponding support column by a first locking member.

[0007] The mounting structure of the support arm, wherein the plurality of support columns are hollow structures, and the inner cavities of the plurality of support columns are provided with a plurality of positioning members, and the two side walls of the plurality of positioning members are respectively fixedly connected to the side walls of the corresponding inner cavities of the support columns; wherein two of the positioning members are respectively located above and below the notch, and the two positioning members are respectively used to position the crossbeam.

[0008] The mounting structure of the support arm, wherein the support arm includes a mounting arm body and a fixing plate, the mounting arm body and the fixing plate are perpendicular to each other; the first locking member includes an embedded member arranged in the positioning member, a first mounting hole opened on the fixing plate, and a first screw or a first bolt arranged in the first mounting hole and cooperating with the embedded member; the number of the first mounting holes is consistent with the number of the embedded members.

[0009] The mounting structure of the support arm, wherein the second locking member includes a second mounting hole opened on the fixing plate, a matching hole opened on the cross beam and used to match with the second mounting hole, and a second screw or a second bolt arranged in the second mounting hole and the corresponding matching hole, and a nut is threadedly connected to the second screw or the second bolt.

[0010] The mounting structure of the support arm further includes a backrest, on which a socket is provided that passes through the front and rear side walls of the backrest, the number of the sockets being consistent with the number of the mounting arm bodies, the sockets being used for the corresponding mounting arm bodies to pass through; and the backrest is fixedly connected to the corresponding support column.

[0011] The mounting structure of the support arm, wherein the backrest is a plastic backrest.

[0012] In the mounting structure of the support arm, the crossbeam is a hollow structure.

[0013] Beneficial effects:

[0014] The utility model provides an installation structure of a support arm, which uses a second locking piece to fix the support arm on a cross beam; a notch is set on a support column, and the cross beam is inserted into the notch to play a role in preliminarily fixing the cross beam, and then the support arm is fixed to the support column by the first locking piece, so that the cross beam is also synchronously fixed to the support column, which can improve the assembly accuracy of the installation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the mounting structure of the support arm provided by the utility model.

[0016] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0017] Figure 3 A schematic diagram of the structure of the support column.

[0018] Figure 4 Schematic diagram of the local structure of the beam and the arm.

[0019] Description of the main component symbols: 1-support column, 11-notch, 12-positioning piece, 2-cross beam, 21-matching hole, 3-support arm, 31-mounting arm body, 32-fixing plate, 321-first mounting hole, 322-second mounting hole, 4-backrest, 41-jack. DETAILED DESCRIPTION

[0020] The utility model provides an arm mounting structure. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0021] See also Figure 1-Figure 4 The utility model provides an arm installation structure, comprising a support column 1, a cross beam 2, and a support arm 3; the support column 1 is provided in plurality, and the plurality of support columns 1 are arranged in parallel left and right, and the plurality of support columns 1 are provided with a transversely extending notch 11, and the cross beam 2 is arranged in the notch 11; the support arm 3 is provided in two pieces, and is respectively fixedly connected to the left and right sides of the cross beam 2 by a second locking member; the support arm 3 is fixedly connected to the corresponding support column 1 by a first locking member.

[0022] Attached Figure 1 In the figure, a desk and chair with two seats is shown, so there are three arms 3 and two backrests 4.

[0023] Specifically, the support column 1, the cross beam 2, and the support arm 3 are all transported in the state of parts, which can greatly reduce the transportation volume of the installation structure. In the actual on-site assembly process, the two support arms 3 are first fixed to the corresponding positions on the front side of the cross beam 2 through the second locking member; then the whole is inserted into the notch 11 of the support column 1, and the support arm 3 is fixed to the support column 1 through the first locking member, and the cross beam 2 is fixed in the notch 11, so that the cross beam 2 and the support column 1 can be fixed; then the two sides of the seat plate recovery assembly after assembly can be assembled to the two support arms 3, so that the desks and chairs can be quickly assembled.

[0024] See also Figure 3 In some embodiments, the plurality of support columns 1 are hollow structures, and the inner cavities of the plurality of support columns 1 are provided with a plurality of positioning members 12, and the two side walls of the plurality of positioning members 12 are respectively fixedly connected to the side walls of the inner cavities of the corresponding support columns 1; please refer to Figure 2, wherein the two positioning members 12 are respectively located above and below the notch 11, and the two positioning members 12 are respectively used to position the cross beam 2. The support column 1 is set to be hollow, which is convenient for reducing the weight of the support column 1 on the one hand; on the other hand, it is convenient to pre-install the positioning member 12 in its inner cavity, and the two positioning members 12 arranged up and down cooperate with the notch 11, so that the positioning member 12 contacts the upper surface and the lower surface of the cross beam 2, avoiding the reduction of the contact area between the support column 1 with a hollow structure and the cross beam 2, ensuring the support and positioning of the cross beam 2, and making the cross beam 2 more firmly set in the notch 11.

[0025] See also Figure 2 and Figure 4 In some embodiments, the support arm 3 includes a mounting arm body 31 and a fixing plate 32, and the mounting arm body 31 and the fixing plate 32 are perpendicular to each other; the first locking member includes an embedded member (not visible in the figure) arranged in the positioning member 12, a first mounting hole 321 opened on the fixing plate 32, and a first screw or a first bolt (not shown in the figure) arranged in the first mounting hole 321 and matched with the embedded member; the number of the first mounting holes 321 is consistent with the number of the embedded members. Specifically, the mounting arm body 31 and the fixing plate 32 are an integrally formed structure, formed by bending, and have good structural rigidity. The positioning member 12 is pre-welded in the inner cavity of the support column 1, and the embedded member is pre-formed in the positioning member 12. When the beam 2 and the support arm 3 are integrally inserted into the notch 11, the beam 2 and the support arm 3 can be fixed to the support column 1 together through the support arm 3 by the first screw or the first bolt matching the self-tapping thread in the embedded member.

[0026] See also Figure 2 and Figure 4 In some embodiments, the second locking member includes a second mounting hole 322 provided on the fixing plate 32, a matching hole 21 provided on the crossbeam 2 and used to match the second mounting hole 322, and a second screw or a second bolt (not shown in the figure) provided in the second mounting hole 322 and the corresponding matching hole 21, and a nut is threadedly connected to the second screw or the second bolt. During assembly, the second mounting hole 322 is aligned with the matching hole 21, the second screw or the second bolt is inserted into the second mounting hole 322 and the matching hole 21, and the assembly of the support arm 3 and the crossbeam 2 is achieved by tightening the nut, which is easy to operate.

[0027] See also Figure 1In some embodiments, the mounting structure of the support arm further includes a backrest 4, on which a plug hole 41 is provided that penetrates the front and rear side walls of the backrest 4, and the number of the plug holes 41 is consistent with the number of the mounting arm bodies 31, and the plug holes 41 are used for the corresponding mounting arm bodies 31 to pass through; and the backrest 4 is fixedly connected to the corresponding support column 1. After the crossbeam 2 and the support arm 3 are fixed to the support column 1, the mounting structure is covered behind the backrest 4 after the backrest 4 passes through the plug hole 41, and the mounting structure is covered by the backrest 4, thereby improving the aesthetics of the desk and chair; after the backrest 4 is installed in place, it is also fixed to the support column 1 by screws.

[0028] See also Figure 1 In some embodiments, the backrest 4 is a plastic backrest. Specifically, the backrest 4 is an injection molded part, which can have a texture on its surface and give the backrest 4 a color, further improving the aesthetics of the desk and chair.

[0029] See also Figure 4 In some embodiments, the cross beam 2 is a hollow structure. The above configuration is used to reduce the weight of the cross beam 2.

[0030] The specific assembly process of the mounting structure of the support arm is as follows:

[0031] First, place one arm 3 on the cross beam 2 so that the second mounting hole 322 on the arm 3 is aligned with the matching hole 21 on the cross beam 2, and then fix the arm 3 on the cross beam 2 by means of a second screw or a second bolt in cooperation with a nut, and fix the other arm 3 on the cross beam 2 by the same operation; then insert the cross beam 2 into the notch 11, and use the notch 11 and the two positioning members 12 to preliminarily fix the cross beam 2; then, pass the first screw or the first bolt through the first mounting hole 321 on the arm 3 and self-tap into the embedded member in the positioning member 12 to fix the cross beam 2 and the arm 3 on the support column 1; after completing the assembly of the overall structure, turn the back of the backrest 4 toward the overall structure, and fix the backrest 4 on the support column 1 after the insertion hole 41 passes through the mounting arm body 31, and the portion of the mounting arm body 31 protruding from the backrest 4 is used to install the seat plate return assembly thereon, and the assembly is completed.

[0032] In summary, the utility model uses the second locking member to fix the support arm 3 on the beam 2; a notch 11 is set on the support column 1, and the beam 2 is inserted into the notch 11, which plays a role in preliminarily fixing the beam 2, and then the first locking member is used to fix the support arm 3 on the support column 1, so that the beam 2 is also synchronously fixed on the support column 1, which can improve the assembly accuracy of the installation structure.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0035] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A mounting structure of a support arm, characterized in that: It includes a support column, a crossbeam, and a support arm; the support column is provided in plurality, and the plurality of support columns are arranged in parallel left and right, and the plurality of support columns are provided with a transversely extending notch, and the crossbeam is fixedly arranged in the notch; the support arm is provided in two pieces, and are respectively fixedly connected to the left and right sides of the crossbeam through a second locking piece; the support arm is fixedly connected to the corresponding support column through a first locking piece.

2. The mounting structure of the support arm according to claim 1, characterized in that: The plurality of support columns are all hollow structures, and a plurality of positioning members are provided in the inner cavities of the plurality of support columns, and the two side walls of the plurality of positioning members are respectively fixedly connected to the side walls of the corresponding inner cavities of the support columns; two of the positioning members are respectively located above and below the notch, and the two positioning members are respectively used to position the crossbeam.

3. The mounting structure of the support arm according to claim 2, characterized in that: The support arm includes a mounting arm body and a fixing plate, and the mounting arm body and the fixing plate are perpendicular to each other; the first locking member includes an embedded member arranged in the positioning member, a first mounting hole opened on the fixing plate, and a first screw or a first bolt arranged in the first mounting hole and cooperating with the embedded member; the number of the first mounting holes is consistent with the number of the embedded members.

4. The mounting structure of the support arm according to claim 3, characterized in that: The second locking member includes a second mounting hole opened on the fixing plate, a matching hole opened on the crossbeam and used to match with the second mounting hole, and a second screw or a second bolt arranged in the second mounting hole and the corresponding matching hole, and a nut is threadedly connected to the second screw or the second bolt.

5. The mounting structure of the support arm according to claim 3, characterized in that: It also includes a backrest, which is provided with insertion holes that penetrate the front and rear side walls of the backrest, the number of the insertion holes is consistent with the number of the mounting arms, and the insertion holes are used for the corresponding mounting arms to pass through; and the backrest is fixedly connected to the corresponding support column.

6. The mounting structure of the support arm according to claim 5, characterized in that: The backrest is a plastic backrest.

7. The mounting structure of the support arm according to claim 1, characterized in that: The crossbeam is a hollow structure.

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