Supporting structure of desk and chair

Abstract

The utility model relates to the technical field of chairs, and discloses a desk and chair supporting structure which comprises a supporting column, an upper cross beam and a bottom plate. The number of the supporting columns is two or more, and the multiple supporting columns are arranged in parallel left and right. The upper cross beam is used for connecting the plurality of supporting columns; the bottom of each supporting column is fixedly connected with the corresponding bottom plate. The front side faces of the multiple supporting columns are all arranged to be inclined faces inclining backwards, and the rear side faces of the multiple supporting columns are all arranged to be planes perpendicular to the ground. The front side face of the supporting column is limited to be an inclined face, so that the sitting requirement for the inclination when a passenger leans on the backrest is met; the rear side face of the supporting column is limited to be perpendicular to the ground, the right-angle side of the supporting column is well connected with the ground through the bottom plate, and the stability of the supporting structure can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a supporting structure of desks and chairs. Background Art

[0002] Desks and chairs are generally composed of support columns, table tops arranged on the upper surfaces of the support columns, and seats arranged on the front sides of the support columns. In order to adapt to the backrest shape of the seat tilted backward, the front sides of the support columns also need to be set as inclined surfaces. For example, in the desk and chair with publication number CN211882993U, the support column is tilted backward as a whole, forming an angle of 10° with the vertical line. Although this can ensure the comfort of the passengers, the tilted setting of the support column makes the connection stability between the bottom and the base poor. Therefore, an anti-pull-off device needs to be set between the base and the support column to prevent the support column tilted backward from falling off the base.

[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, the purpose of the present utility model is to provide a support structure for desks and chairs, which aims to improve the structural stability of the support column by setting the front side surface of the support column as an inclined surface and the rear side surface as a plane perpendicular to the ground so that the side view of the support column is a right triangle.

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

[0006] A support structure for desks and chairs, comprising support columns, an upper crossbeam, and a bottom plate; the support columns are arranged in two or more, and the plurality of support columns are arranged in parallel left and right; the upper crossbeam is used to connect the plurality of support columns; the bottom of each of the support columns is fixedly connected to the bottom plate; the front side surfaces of the plurality of support columns are arranged as inclined surfaces inclined backwards, and the rear side surfaces of the plurality of support columns are arranged as planes perpendicular to the ground.

[0007] The supporting structure of the desks and chairs, wherein the angle a between the inclined surface and the ground is 85°±2°.

[0008] The supporting structure of the desks and chairs, wherein the plurality of supporting columns are all hollow structures, and a plurality of reinforcing blocks are arranged inside the plurality of supporting columns, and the left and right side walls of the plurality of reinforcing blocks are respectively used to be fixedly connected to the two side walls of the inner cavity of the supporting column.

[0009] The supporting structure of the desks and chairs, wherein a laterally extending notch is provided in the middle of the plurality of supporting columns, a lower crossbeam is provided in the notch, and the lower crossbeam is used to connect the middles of the plurality of supporting columns.

[0010] The supporting structure of the desks and chairs further includes a storage basket, the front side of the storage basket is fixedly connected to the rear side of the lower cross beam, and the left and right side walls of the storage basket are respectively fixedly connected to the inner side walls of the corresponding support columns.

[0011] The supporting structure of the desks and chairs, wherein the storage basket includes a front bending plate, a rear bending plate and two side panels; the two side panels are respectively fixed to the left side wall or the right side wall of the rear bending plate, and the two side panels are respectively fixed to the inner side walls of the corresponding support columns; the top of the front bending plate is bent forward to form a bayonet, and the top of the lower cross beam is clamped in the bayonet; the bottom of the rear bending plate is bent forward to form a baffle, and the upper surface of the baffle is in contact with the bottom of the front bending plate; the upper parts of the front bending plate, the rear bending plate and the side panels are surrounded by an opening.

[0012] The supporting structure of the desks and chairs, wherein the two side panels are respectively provided with a first mounting plate, each of which is provided with a first mounting hole, and the first mounting plate is fixedly connected to the corresponding support column; the left and right end surfaces of the baffle are respectively provided with a second mounting plate, each of which is provided with a second mounting hole; the second mounting plate is fixedly connected to the corresponding support column.

[0013] The supporting structure of the desks and chairs, wherein the top of the rear bent plate is bent forward to form an arc-shaped protective edge.

[0014] The supporting structure of the desks and chairs, wherein the bottom plate is provided with through holes penetrating the upper and lower side walls thereof, the through holes being used for ground bursting screws to pass through; and a foot cover is also provided above the through holes.

[0015] Beneficial effects:

[0016] The utility model provides a supporting structure for desks and chairs, which satisfies the occupant's sitting requirement for an inclined surface when leaning against a backrest by limiting the front side surface of the supporting column to be an inclined surface; the rear side surface of the supporting column is limited to be perpendicular to the ground, and the right-angled side of the supporting column forms a good connection with the ground through a bottom plate, thereby improving the stability of the supporting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic structural diagram of the support structure of desks and chairs provided by the present invention.

[0018] Figure 2 This is a right view of the supporting structure of the desks and chairs.

[0019] Figure 3 It is a structural schematic diagram of a storage basket.

[0020] Explanation of the main component symbols: 1-support column, 11-reinforcement block, 12-notch, 2-upper beam, 3-lower beam, 4-bottom plate, 41-through hole, 5-storage basket, 51-front bending plate, 511-bayonet, 52-rear bending plate, 521-baffle, 522-second mounting plate, 53-side plate, 531-first mounting plate, 54-opening, 55-arc protective edge, 6-foot cover. DETAILED DESCRIPTION

[0021] The utility model provides a support structure for desks and chairs. 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.

[0022] See also Figure 1 and Figure 2 The utility model provides a supporting structure of desks and chairs, including a supporting column 1, an upper crossbeam 2, and a bottom plate 4; the supporting columns 1 are arranged in two or more, and the plurality of supporting columns 1 are arranged in parallel left and right; the upper crossbeam 2 is used to connect the plurality of supporting columns 1; the bottom of each of the supporting columns 1 is fixedly connected to the bottom plate 4; the front side surfaces of the plurality of supporting columns 1 are arranged as inclined surfaces inclined backward, and the rear side surfaces of the plurality of supporting columns 1 are arranged as planes perpendicular to the ground.

[0023] Attached Figure 1 What is shown in the figure is a double desk and chair, that is, the double desk and chair is composed of three supporting columns 1, an upper crossbeam 2, and three bottom plates 4; two seats are formed between the three supporting columns 1.

[0024] From the attached Figure 2 It can be seen that the side view of the support column 1 is a right triangle, and the inclined surface formed by the front side of the support column 1 can be adapted to the inclined surface of the backrest to meet the passenger's demand for an inclined sitting angle when leaning on the backrest. The rear side of the support column 1 is perpendicular to the ground. When a person leans on the backrest, the plane can form a good connection with the ground through the bottom plate 4, making the entire support structure more stable.

[0025] In addition, when purchasing pipes for the support column 1 of the above shape, a square pipe can be cut in half at an angle to form two support columns 1, thereby saving more materials.

[0026] See also Figure 2 In some embodiments, the angle a between the inclined plane and the ground is 85°±2°. The above angle range satisfies human mechanics, and the passengers feel the most comfortable when leaning on the backrest within the angle range.

[0027] See also Figure 1In some embodiments, the plurality of support columns 1 are hollow structures, and a plurality of reinforcing blocks 11 are disposed inside the plurality of support columns 1. The left and right side walls of the plurality of reinforcing blocks 11 are respectively used to be fixedly connected to the side walls of the inner cavity of the support column 1. The hollow structure is used to reduce the weight of the support column 1, and the reinforcement blocks 11 are disposed to ensure that each position of the support column 1 meets the requirements of structural rigidity.

[0028] See also Figure 1 In some embodiments, a notch 12 extending transversely is formed in the middle of the plurality of support columns 1, and a lower crossbeam 3 is disposed in the notch 12, and the lower crossbeam 3 is used to connect the middle of the plurality of support columns 1. During assembly, the lower crossbeam 3 is inserted into the corresponding notch 12, and the lower crossbeam 3 and the support column 1 can be fixed by screws. The cooperation between the upper crossbeam 2 and the lower crossbeam 3 can further improve the structural rigidity of the support structure.

[0029] See also Figure 1 In some embodiments, the supporting structure of the desks and chairs further comprises a storage basket 5, the front side of the storage basket 5 is fixedly connected to the rear side of the lower cross beam 3, and the left and right side walls of the storage basket 5 are respectively fixedly connected to the inner side walls of the corresponding support column 1. The storage basket 5 can be used for students to place books, school bags and other supplies, and can also serve as a barrier to prevent students in the back row from kicking students in the front row.

[0030] See also Figure 3 In some embodiments, the storage basket 5 includes a front bending plate 51, a rear bending plate 52 and two side plates 53; the two side plates 53 are respectively fixed to the left side wall or the right side wall of the rear bending plate 52, and the two side plates 53 are respectively fixed to the inner side walls of the corresponding support column 1; the top of the front bending plate 51 is bent forward to form a bayonet 511, and the top of the lower cross beam 3 is clamped in the bayonet 511; the bottom of the rear bending plate 52 is bent forward to form a baffle 521, and the upper surface of the baffle 521 abuts against the bottom of the front bending plate 51 to form a seal at the bottom of the storage basket 5; the upper parts of the front bending plate 51, the rear bending plate 52 and the side plates 53 are surrounded by an opening 54. Specifically, the rear bending plate 52 and the side plates 53 are an integrated structure, and the side plates 53 are formed by bending the two sides of the rear bending plate 52 forward. The storage basket 5 is formed by bending a plurality of plates, and the materials are convenient to obtain. During assembly, the assembled storage basket 5 is inserted into the lower crossbeam 3 through the bayonet 511 to achieve preliminary fixation of the storage basket 5.

[0031] See also Figure 3In some embodiments, the two side panels 53 are respectively provided with first mounting pieces 531, each of which has a first mounting hole, and the first mounting pieces 531 are fixedly connected to the corresponding support column 1; the left and right end surfaces of the baffle 521 are respectively provided with second mounting pieces 522, each of which has a second mounting hole; the second mounting pieces 522 are fixedly connected to the corresponding support column 1. The storage basket 5 initially fixed to the lower crossbeam 3 can be completely fixed by driving screws into the first mounting holes on the first mounting pieces 531 and the second mounting holes on the second mounting pieces 522.

[0032] See also Figure 3 In some embodiments, the top of the rear bending plate 52 is bent forward to form an arc-shaped protective edge 55. The edge of the metal storage basket 5 is relatively sharp, and the arc-shaped protective edge 55 can be used to avoid scratching the hands of passengers.

[0033] See also Figure 1 In some embodiments, the bottom plate 4 is provided with through holes 41 penetrating the upper and lower side walls thereof, and the through holes 41 are used for ground-blasting screws to pass through. The entire assembled support structure is placed on the ground, and the ground-blasting screws are driven into the ground through the through holes 41 to fix the support structure.

[0034] See also Figure 1 In some embodiments, a foot cover 6 is further provided above the through hole 41. The foot cover 6 is provided to cover the protruding part of the ground bursting screw to avoid tripping others.

[0035] To sum up, the utility model limits the front side surface of the support column 1 to be an inclined surface to meet the passenger's need for an inclined sitting angle when leaning against the backrest; limits the rear side surface of the support column 1 to be perpendicular to the ground, and the right-angled side of the support column 1 forms a good connection with the ground through the base plate 4, which can improve the stability of the supporting structure.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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 support structure for desks and chairs, characterized in that: It includes support columns, an upper crossbeam, and a base plate; the support columns are arranged in two or more, and the multiple support columns are arranged in parallel left and right; the upper crossbeam is used to connect the multiple support columns; the bottom of each support column is fixedly connected to the base plate; the front side surfaces of the multiple support columns are arranged as inclined surfaces inclined backward, and the rear side surfaces of the multiple support columns are arranged as planes perpendicular to the ground.

2. The supporting structure of desks and chairs according to claim 1, characterized in that: The included angle a between the inclined plane and the ground is 85°±2°.

3. The supporting structure of desks and chairs according to claim 1, characterized in that: The plurality of support columns are all hollow structures, and a plurality of reinforcing blocks are arranged inside the plurality of support columns. The left and right side walls of the plurality of reinforcing blocks are respectively used to be fixedly connected to the two side walls of the inner cavity of the support column.

4. The supporting structure of desks and chairs according to claim 3, characterized in that: A transversely extending notch is also provided in the middle of the plurality of support columns, a lower cross beam is arranged in the notch, and the lower cross beam is used to connect the middle of the plurality of support columns.

5. The supporting structure of desks and chairs according to claim 4, characterized in that: It also includes a storage basket, the front side of the storage basket is fixedly connected to the rear side of the lower cross beam, and the left and right side walls of the storage basket are respectively fixedly connected to the inner side walls of the corresponding support columns.

6. The supporting structure of desks and chairs according to claim 5, characterized in that: The storage basket includes a front bending plate, a rear bending plate and two side plates; the two side plates are respectively fixed to the left side wall or the right side wall of the rear bending plate, and the two side plates are respectively fixed to the inner side walls of the corresponding support columns; the top of the front bending plate is bent forward to form a slot, and the top of the lower cross beam is snapped into the slot; the bottom of the rear bending plate is bent forward to form a baffle, and the upper surface of the baffle is in contact with the bottom of the front bending plate; the upper parts of the front bending plate, the rear bending plate and the side plates are surrounded by an opening.

7. The supporting structure of desks and chairs according to claim 6, characterized in that: The two side panels are respectively provided with a first mounting plate, each of which is provided with a first mounting hole, and the first mounting plate is fixedly connected to the corresponding support column; the left and right end surfaces of the baffle are respectively provided with a second mounting plate, each of which is provided with a second mounting hole; the second mounting plate is fixedly connected to the corresponding support column.

8. The supporting structure of desks and chairs according to claim 6, characterized in that: The top of the rear bending plate is bent forward to form an arc-shaped protective edge.

9. The supporting structure of desks and chairs according to claim 1, characterized in that: The bottom plate is provided with through holes penetrating the upper and lower side walls thereof, and the through holes are used for ground bursting screws to pass through; a foot cover is also provided above the through holes.

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