Inner hole special-shaped groove steel pipe structure for enhancing torsion resistance for seat

Abstract

The utility model relates to the technical field of supporting steel pipes, and discloses a seat inner hole special-shaped groove steel pipe structure capable of enhancing torsion resistance, which comprises a bearing steel pipe main body, the outer side of the bearing steel pipe main body is provided with uniformly distributed arc-shaped semicircular openings, and the inner side of the bearing steel pipe main body is provided with uniformly distributed arc-shaped bearing surfaces. The arc-shaped semicircular opening and the arc-shaped bearing surface are respectively arranged on the surface and the inner side of the bearing steel pipe main body, so that the stress uniformity and the torsion resistance are improved, the torsion-resistant bearing steel column can support the installation of a special-shaped bearing frame, and the arc-shaped supporting sheet is clamped at the arc-shaped bearing surface in a matched manner and can be stably installed and filled on the inner side of the bearing steel pipe main body; the tensile strength and the tolerance strength of the steel pipe are enhanced, the overall mass is light, the polygonal bearing pipe plays a role in protecting the surface of the bearing steel pipe body, the device is high in bearing capacity and excellent in stress resistance while keeping light weight, durability is enhanced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to support steel pipe technical field, concretely is the inner hole special-shaped groove steel pipe structure for seat of enhanced torsional rigidity. BACKGROUND

[0002] The seat is a kind of seat with backrest, some also have armrest. Ancient people sat on the ground, originally there was no chair, "chair" is the name of wood. The existing leather seat or profile seat, usually inside and bottom need to be supported by steel pipe skeleton, the traditional seat skeleton mostly adopts round pipe or square pipe as support piece, its round or symmetrical section is prone to shear deformation and stress concentration problem when bearing torque load, therefore, steel pipe needs to be strengthened, to enhance its torsional rigidity and rigid bearing capacity.

[0003] Especially in the scene of frequent angle adjustment of automobile seat, office chair bears dynamic pressure, the torsional rigidity of traditional steel pipe is insufficient, leading to skeleton shaking, abnormal sound and even structural failure, the existing torsional rigidity enhancement technology mainly realizes by increasing wall thickness or using high-strength steel material, but such method significantly increases the weight of seat, and cannot solve the stress concentration problem at connecting place, it is difficult to adapt to the development trend of seat light weight and modularization, the torsional rigidity is relatively insufficient, the rigidity of special-shaped groove steel pipe is insufficient, and the use performance is poor, therefore, we propose the inner hole special-shaped groove steel pipe structure for seat of enhanced torsional rigidity to solve the above problems. UTILITY MODEL CONTENTS

[0004] (1) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides the inner hole special-shaped groove steel pipe structure for seat of enhanced torsional rigidity, has the advantages of keeping light weight while bearing capacity is strong, excellent anti-reverse performance, enhanced durability and service life etc.

[0006] (2) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: the inner hole special-shaped groove steel pipe structure for seat of enhanced torsional rigidity, including bearing steel pipe main part, the bearing steel pipe main part outside is equipped with the evenly distributed arc semicircle mouth;

[0008] The inner side of the bearing steel pipe main part is provided with the evenly distributed arc bearing surface, the center of the inner side of the bearing steel pipe main part is equipped with the torsional bearing steel column, the outer side of the torsional bearing steel column is sleeved with the special-shaped bearing frame, the outer side of the special-shaped bearing frame is evenly distributed with the arc support sheet, and a plurality of arc support sheets are correspondingly attached and extruded at the arc bearing surface.

[0009] The outer side of the bearing steel pipe main part is sleeved with the polygonal bearing pipe, and each face of the polygonal bearing pipe is correspondingly attached to the arc semicircle mouth.

[0010] Preferably, the arc-shaped semicircular opening and the arc-shaped bearing surface are in corresponding positions, and the arc-shaped semicircular opening and the arc-shaped bearing surface are uniformly distributed in a ring shape around the torsion-resistant bearing steel column as the axis.

[0011] Preferably, the thickness of the bearing steel pipe body is higher than that of the polygonal bearing pipe, and the inner wall of the polygonal bearing pipe is attached to the outer wall of the bearing steel pipe body.

[0012] Preferably, the bearing steel pipe body, the torsion-resistant bearing steel column and the polygonal bearing pipe are all steel pipes, and the surface of the polygonal bearing pipe is sprayed with a rust-proof paint surface.

[0013] Preferably, the special-shaped bearing frame comprises a sleeved pipe body and a support plate surface, the sleeved pipe body is sleeved and positioned on the outer side of the torsion-resistant bearing steel column, the support plate surface is uniformly fixed on the outer side of the sleeved pipe body, and the side of the support plate surface away from the sleeved pipe body is connected with the arc-shaped support piece.

[0014] Preferably, the number of the support plate surface and the arc-shaped support piece is equal and fixedly connected, and the sleeved pipe body, the support plate surface and the arc-shaped support piece are fixedly connected and form an integral whole.

[0015] Preferably, the side of the arc-shaped support piece away from the special-shaped bearing frame is closely attached to the arc-shaped semicircular opening, and a non-slip filling pad is filled between the arc-shaped support piece and the arc-shaped semicircular opening.

[0016] Preferably, the arc-shaped semicircular opening and the arc-shaped bearing surface are uniformly arranged on the bearing steel pipe body, the arc-shaped semicircular opening is a concave arc shape, and the arc-shaped bearing surface is a convex arc shape.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a seat inner hole special-shaped groove steel pipe structure with enhanced torsion resistance, which has the following beneficial effects: maintaining light weight while having strong bearing capacity, excellent reverse performance, and enhanced durability and service life

[0019] 1. The reinforced torsion-resistant inner hole special-shaped channel steel pipe structure for a seat, by arranging arc-shaped semicircular openings and arc-shaped bearing surfaces on the surface and inner side of the load-bearing steel pipe body respectively, the load-bearing steel pipe body is a special-shaped channel steel pipe, the stress uniformity and torsion resistance are increased, a torsion-resistant load-bearing steel column is arranged at the center of the inner side of the load-bearing steel pipe body, the special-shaped load-bearing frame can be supported and installed, arc-shaped support pieces are arranged on the outer side of the special-shaped load-bearing frame, the arc-shaped support pieces and the arc-shaped bearing surfaces are matched and engaged, the installation is stable, the rigidity and resistance of the steel pipe are enhanced, the overall structure is a sheet steel pipe, the overall quality is light, the polygonal load-bearing pipe protects the surface of the load-bearing steel pipe body, the rigidity and resistance are strong, the device is light in weight and strong in load-bearing capacity, the reverse resistance is excellent, and the durability and service life are enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view three-dimensional schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a front view three-dimensional schematic diagram of the structure of the utility model;

[0022] Figure 3 It is a front view three-dimensional schematic diagram of the structure of the utility model;

[0023] Figure 4 It is a front view three-dimensional schematic diagram of the structure of the utility model;

[0024] Figure 5 It is a front view three-dimensional schematic diagram of the structure of the utility model;

[0025] In the drawing: 1, load-bearing steel pipe body; 2, arc-shaped semicircular opening; 3, arc-shaped bearing surface; 4, torsion-resistant load-bearing steel column; 5, special-shaped load-bearing frame; 51, sleeve pipe body; 52, support plate; 6, arc-shaped support piece; 7, polygonal load-bearing pipe; 8, anti-skid filling pad. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 , the reinforced torsion-resistant inner hole special-shaped channel steel pipe structure for a seat, including load-bearing steel pipe body 1, load-bearing steel pipe body 1 outer side is provided with evenly distributed arc-shaped semicircular opening 2;

[0028] The inner side of the bearing steel pipe body 1 is provided with uniformly distributed arc-shaped bearing surfaces 3, and the center of the inner side of the bearing steel pipe body 1 is provided with a torsion-resistant bearing steel column 4, and the outer side of the torsion-resistant bearing steel column 4 is sleeved with a special-shaped bearing frame 5, and the outer side of the special-shaped bearing frame 5 is uniformly distributed with arc-shaped support pieces 6, and the arc-shaped support pieces 6 are correspondingly attached and extruded on the arc-shaped bearing surfaces 3;

[0029] The outer side of the bearing steel pipe body 1 is sleeved with a polygonal bearing pipe 7, and each face of the polygonal bearing pipe 7 is correspondingly attached to the arc-shaped semicircular opening 2;

[0030] The beneficial effects expressed by the scheme are: by providing arc-shaped semicircular openings 2 and arc-shaped bearing surfaces 3 on the surface and inner side of the bearing steel pipe body 1, the bearing steel pipe body 1 is a special-shaped channel steel pipe, which increases the uniformity of stress and torsional resistance, and the center of the inner side of the bearing steel pipe body 1 is provided with a torsion-resistant bearing steel column 4 to support the installation of the special-shaped bearing frame 5, and the outer side of the special-shaped bearing frame 5 is provided with arc-shaped support pieces 6 to stably install and fill in the inner side of the bearing steel pipe body 1, and the arc-shaped support pieces 6 and the arc-shaped bearing surfaces 3 are matched and matched, the installation is stable, and the rigidity and resistance of the steel pipe are enhanced, the whole is a sheet steel pipe, the overall quality is lighter, the polygonal bearing pipe 7 protects the surface of the bearing steel pipe body 1, the rigidity and resistance are strong, the device remains lightweight while having strong bearing capacity, excellent anti-reverse performance, and enhanced durability and service life.

[0031] Further, the arc-shaped semicircular openings 2 and the arc-shaped bearing surfaces 3 are positionally corresponding, and the arc-shaped semicircular openings 2 and the arc-shaped bearing surfaces 3 are uniformly distributed in a ring shape with the torsion-resistant bearing steel column 4 as the axis;

[0032] By setting the arc-shaped semicircular openings 2 and the arc-shaped bearing surfaces 3 to be positionally corresponding, the adaptability is good, the stress bearing of the bearing steel pipe body 1 is uniform, the resistance performance is excellent, and the arc-shaped semicircular openings 2 and the arc-shaped bearing surfaces 3 are uniformly distributed in a ring shape with the torsion-resistant bearing steel column 4 as the axis, which further improves the resistance performance of the steel pipe, the stress is uniform, and the service life is long.

[0033] Further, the thickness of the bearing steel pipe body 1 is higher than the thickness of the polygonal bearing pipe 7, and the inner wall of the polygonal bearing pipe 7 is attached to the outer wall of the bearing steel pipe body 1;

[0034] By setting the thickness of the bearing steel pipe body 1 to be higher than the thickness of the polygonal bearing pipe 7, the bearing steel pipe body 1 is the main pipe body, and the polygonal bearing pipe 7 is the auxiliary pipe body, which plays a surface protection role and prevents external impact damage, and has good bearing protection performance.

[0035] Further, the bearing steel pipe body 1, the torsion-resistant bearing steel column 4 and the polygonal bearing pipe 7 are all steel pipes, and the surface of the polygonal bearing pipe 7 is sprayed with a rust-proof paint surface;

[0036] The load-bearing steel pipe body 1, the torsion-resistant load-bearing steel column 4 and the polygonal load-bearing pipe 7 are all steel pipes, excellent in resistance, and the polygonal load-bearing pipe 7 is sprayed with a rust-proof paint surface, good in corrosion protection effect.

[0037] Further, the special-shaped load-bearing frame 5 comprises a sleeving pipe body 51 and a support plate surface 52, the sleeving pipe body 51 is sleeved and positioned on the outer side of the torsion-resistant load-bearing steel column 4, and the support plate surface 52 is uniformly fixed on the outer side of the sleeving pipe body 51, and the side, away from the sleeving pipe body 51, of the support plate surface 52 is connected with the arc-shaped support sheet 6;

[0038] The special-shaped load-bearing frame 5 comprises the sleeving pipe body 51 and the support plate surface 52, the sleeving pipe body 51 can be wrapped on the outer side of the torsion-resistant load-bearing steel column 4, and the support plate surface 52 can be connected with the arc-shaped support sheet 6, so that the special-shaped load-bearing frame 5 cooperates with the arc-shaped support sheet 6 and can be stably clamped and installed in the inside of the load-bearing steel pipe body 1, and the support load-bearing capacity is excellent.

[0039] Further, the number of the support plate surface 52 and the arc-shaped support sheet 6 is equal and fixedly connected, and the sleeving pipe body 51, the support plate surface 52 and the arc-shaped support sheet 6 are fixedly connected and form an integral whole;

[0040] The number of the support plate surface 52 and the arc-shaped support sheet 6 is equal and fixedly connected, and the sleeving pipe body 51, the support plate surface 52 and the arc-shaped support sheet 6 are fixedly connected and form an integral whole, so that the resistance of the device is further improved and the service life is prolonged.

[0041] Further, the side, away from the special-shaped load-bearing frame 5, of the arc-shaped support sheet 6 is closely attached to the arc-shaped semicircular opening 2, and the anti-skid filling pad 8 is filled between the arc-shaped support sheet 6 and the arc-shaped semicircular opening 2;

[0042] The arc-shaped support sheet 6 is closely attached to the arc-shaped semicircular opening 2 and filled with the anti-skid filling pad 8 therebetween, so as to achieve the installation anti-skid effect, and the arc-shaped support sheet 6 and the special-shaped load-bearing frame 5 can be stably installed on the inside of the load-bearing steel pipe body 1 and are not easy to be separated, and the installation is stable.

[0043] Further, the arc-shaped semicircular opening 2 and the arc-shaped load-bearing surface 3 are uniformly arranged on the load-bearing steel pipe body 1, the arc-shaped semicircular opening 2 is concave, and the arc-shaped load-bearing surface 3 is convex;

[0044] The arc-shaped semicircular opening 2 and the arc-shaped load-bearing surface 3 are uniformly arranged on the load-bearing steel pipe body 1 and form an integral whole with the load-bearing steel pipe body 1, so that the stress intensity of the load-bearing steel pipe body 1 is increased, and the stress is uniform and stable.

[0045] Working principle: the arc-shaped semicircular opening 2 is uniformly arranged on the surface of the bearing steel pipe body 1, the arc-shaped bearing surface 3 is correspondingly arranged in the arc-shaped semicircular opening 2, the arc-shaped semicircular opening 2 plays a special-shaped groove bearing role, the overall stress of the steel pipe is uniform, the anti-torsion bearing steel column 4 is arranged at the center of the inner side of the bearing steel pipe body 1, the anti-torsion bearing steel column 4 plays a rigid bearing capacity, and the tensile and torsion resistance is increased;

[0046] The special-shaped bearing frame 5 is sleeved outside the anti-torsion bearing steel column 4, the arc-shaped supporting pieces 6 are uniformly arranged on the outer side of the special-shaped bearing frame 5, the arc-shaped supporting pieces 6 are correspondingly attached and extruded at the arc-shaped bearing surface 3, the anti-torsion bearing steel column 4, the special-shaped bearing frame 5 and the arc-shaped supporting pieces 6 can be combined and filled in the bearing steel pipe body 1, the resistance and supporting capacity of the steel pipe are greatly strengthened, the torsion resistance is strong, and the overall is a sheet steel pipe, the overall quality is lighter;

[0047] The polygonal bearing pipe 7 is attached on the outer side of the bearing steel pipe body 1, plays a protection role on the surface of the bearing steel pipe body 1, at the same time, the polygonal bearing pipe 7 plays an auxiliary bearing role, further enhances the torsion resistance, the rigidity resistance of the steel pipe is strong, the device is light in weight and strong in bearing capacity, the reverse performance is excellent, the durability and service life are enhanced.

[0048] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such a process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0049] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A seat inner hole special-shaped channel steel pipe structure with enhanced torsional performance, comprising a load-bearing steel pipe body (1), characterized in that: The arc-shaped semicircular openings (2) are evenly distributed on the outer side of the bearing steel pipe body (1); The arc-shaped bearing surfaces (3) are evenly distributed on the inner side of the bearing steel pipe body (1), the torsion-resistant bearing steel column (4) is arranged at the center of the inner side of the bearing steel pipe body (1), the outer side of the torsion-resistant bearing steel column (4) is sleeved with the special-shaped bearing frame (5), the arc-shaped supporting pieces (6) are evenly distributed on the outer side of the special-shaped bearing frame (5), and the arc-shaped supporting pieces (6) are correspondingly attached and extruded at the arc-shaped bearing surfaces (3). The outer side of the bearing steel pipe body (1) is sleeved with the polygonal bearing pipe (7), and each face of the polygonal bearing pipe (7) is correspondingly attached to the arc-shaped semicircular openings (2).

2. The seat inner hole special-shaped channel steel pipe structure for enhancing torsion performance according to claim 1, characterized in that: The arc-shaped semicircular openings (2) and the arc-shaped bearing surfaces (3) are in position correspondence, and the arc-shaped semicircular openings (2) and the arc-shaped bearing surfaces (3) are evenly distributed in a ring shape with the torsion-resistant bearing steel column (4) as the axis.

3. The structure of the seat inner hole special-shaped channel steel pipe for enhancing the anti-torsion performance according to claim 1, characterized in that: The thickness of the bearing steel pipe body (1) is higher than that of the polygonal bearing pipe (7), and the inner wall of the polygonal bearing pipe (7) is attached to the outer wall of the bearing steel pipe body (1).

4. The structure of the seat inner hole special-shaped channel steel pipe for enhancing the anti-torsion performance according to claim 1, characterized in that: The bearing steel pipe body (1), the torsion-resistant bearing steel column (4) and the polygonal bearing pipe (7) are all steel pipes, and the surface of the polygonal bearing pipe (7) is sprayed with a rust-proof paint surface.

5. The torsionally stiffened seat inner tube channel section of claim 1, wherein: The special-shaped bearing frame (5) comprises a sleeving pipe body (51) and a supporting plate surface (52), the sleeving pipe body (51) is sleeved and positioned on the outer side of the torsion-resistant bearing steel column (4), the supporting plate surface (52) is evenly fixed on the outer side of the sleeving pipe body (51), and the side, away from the sleeving pipe body (51), of the supporting plate surface (52) is connected with the arc-shaped supporting piece (6).

6. The seat inner hole special-shaped channel steel pipe structure for enhancing torsion performance according to claim 5, characterized in that: The number of the supporting plate surface (52) and the arc-shaped supporting piece (6) is equal and fixedly connected, and the sleeving pipe body (51), the supporting plate surface (52) and the arc-shaped supporting piece (6) are fixedly connected and form an integral whole.

7. The torsionally stiffened seat inner tube channel section of claim 1, wherein: The side, away from the special-shaped bearing frame (5), of the arc-shaped supporting piece (6) is closely attached to the arc-shaped semicircular opening (2), and the anti-skid filling pad (8) is filled between the arc-shaped supporting piece (6) and the arc-shaped semicircular opening (2).

8. The torsionally stiffened seat inner tube channel section of claim 1, wherein: The arc-shaped semicircular openings (2) and the arc-shaped bearing surfaces (3) are evenly arranged on the bearing steel pipe body (1), the arc-shaped semicircular openings (2) are concave arcs, and the arc-shaped bearing surfaces (3) are convex arcs.

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