Folding office chair

Abstract

The utility model relates to the technical field of folding chairs, and discloses a folding office chair which comprises a chair frame, the chair frame is provided with foot tubes, armrest tubes, backrest tubes and seat tubes, the armrest tubes are installed on the foot tubes, the seat tubes are installed on the inner sides of the armrest tubes, the backrest tubes are installed on one sides of the upper portions of the armrest tubes, and the backrest tubes are installed on the other sides of the upper portions of the armrest tubes. A U-shaped piece, a connecting piece and an L-shaped piece are further arranged on the chair frame, the L-shaped piece is connected to the backrest pipe in a sleeved mode, one side of the L-shaped piece is hinged to the armrest pipe, one side of the connecting piece is hinged to the armrest pipe, the other side of the connecting piece is hinged to the seat pipe, the U-shaped piece is fixed to the inner side of the foot pipe through a rivet, and an anti-skid pad is further riveted to the outer side of the foot pipe through the rivet. According to the office chair, the foot pipes are matched with the U-shaped pieces, and the non-slip mats are riveted on the outer sides of the foot pipes, so that the problems that the foot pipes are directly contacted with the ground and are easily scratched and abraded when the office chair is seated or folded are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of folding chairs, in particular to a folding office chair. Background Art

[0002] Chairs are essential equipment in daily life and are widely used in various homes and offices. As office space becomes increasingly tight, higher requirements are placed on the portability and space utilization of chairs. In order to avoid taking up too much space when the chairs are not in use, a variety of foldable chairs have appeared on the market.

[0003] At present, the folding office chairs used in offices are basically designed with a folding structure for the convenience of carrying. Analyzing the structure of folding office chairs in the existing market, the leg tube design often has some shortcomings. When sitting or folding, the leg tube is in direct contact with the ground, which is easy to scratch and wear the leg tube, which not only affects the appearance of the chair, but also shortens its service life.

[0004] To this end, the utility model provides a foldable office chair. Utility Model Content

[0005] In view of the above problems existing in the existing technology, the purpose of the present invention is to solve the problem that the legs of folding office chairs are in direct contact with the ground when sitting or folding, which easily scratches and wears the legs, not only affecting the appearance of the chair, but also shortening its service life.

[0006] The purpose of this utility model can be achieved through the following technical solutions:

[0007] A foldable office chair comprises a chair frame, wherein the chair frame is provided with a leg tube, an armrest tube, a backrest tube and a seat tube, wherein the armrest tube is mounted on the leg tube, the seat tube is mounted inside the armrest tube, and the backrest tube is mounted on one side above the armrest tube;

[0008] The chair frame is further provided with a U-shaped piece, a connecting piece and an L-shaped piece, wherein the L-shaped piece is sleeved on the backrest tube and hinged to the armrest tube on one side;

[0009] One side of the connecting piece is hinged to the handrail tube, and the other side is hinged to the seat tube;

[0010] The U-shaped piece is fixed to the inner side of the leg tube through a rivet, and an anti-slip pad is riveted to the outer side of the leg tube through the rivet. The U-shaped piece is also hinged to the handrail tube.

[0011] As a further solution of the present invention: the number of the leg tubes is 2, and the leg tubes are an integral part made of lightweight metal material by bending. The leg tubes are bent into an M-shape, and a pair of the leg tubes are connected by a damping member. The leg tubes are provided with a first fixing portion, and the first fixing portion is provided with an installation through hole for installing the damping member. The leg tubes are also provided with a second fixing portion, and the second fixing portion is provided with a rivet through hole for riveting the U-shaped member.

[0012] As a further solution of the present invention: the number of the seat tubes is 2, and the seat tubes are an integral part made of lightweight metal material by bending. The seat tubes are bent into a U shape, and a pair of the seat tubes are connected by a damping member. The seat tubes are provided with a fixing portion, and a mounting through hole for installing the damping member is provided at the end of the fixing portion, and a mounting through hole for hinged connection with the connecting member is provided in the middle of the fixing portion.

[0013] As a further solution of the present invention: the number of the handrail tubes is two, and the handrail tubes are an integral part made of a lightweight metal material by bending, and the handrail tubes are bent into a U-shape, and the handrail tubes are provided with a first hinge portion, and a mounting through hole for hinged connection with the U-shaped member is provided at the end of the first hinge portion, and a mounting through hole for hinged connection with the connecting member is provided in the upper middle portion of the first hinge portion, and a mounting through hole for hinged connection with the L-shaped member is further provided at the U-shaped bend position on one side of the handrail tube;

[0014] There are two backrest tubes, each of which is an integral piece made of a lightweight metal material. A mounting through hole for sleeve connection with an L-shaped piece is provided at the lower end of the backrest tube.

[0015] As a further solution of the present invention: the damping member is provided with a first groove fixing portion, a second groove fixing portion and a damping portion, the first groove fixing portion is fixedly connected to the leg tube or the seat tube, the second groove fixing portion is fixedly connected to another leg tube or another seat tube, the first groove fixing portion and the second groove fixing portion are hinged through the damping portion, the first groove fixing portion and the second groove fixing portion are both provided with mounting through holes for fixed connection to the leg tube or the seat tube, and the damping portion is provided with a hinge hole for hinged connection of the first groove fixing portion and the second groove fixing portion.

[0016] As a further solution of the present invention: the U-shaped part is an integral part made of lightweight metal material by bending, and the U-shaped part is provided with a second hinged part and a third fixed part, and the second hinged part is provided with two groups, and the two groups of second hinged parts are both rounded cones, and the second hinged part is provided with a hinge hole for hinged connection with the handrail tube, and the third fixed part is rectangular, and a mounting through hole is provided in the center of the third fixed part for fixed connection with the leg tube.

[0017] As a further solution of the present invention: the L-shaped part is an integral part made of lightweight metal material by bending, and the L-shaped part is provided with a hinge part and a connecting part, and the hinge part is provided with two groups. The hinge part is provided with a mounting through hole for fixed connection with the backrest tube, and the hinge part is also provided with a hinge hole for hinged connection with the handrail tube. The two groups of hinge parts are connected by the connecting part, and the L-shaped part is provided with a chamber for sleeved with the backrest tube through the two groups of hinge parts and the connecting part.

[0018] As a further solution of the present invention: seat cloths are installed on the pair of seat tubes, and back cloths are installed on the pair of back tubes.

[0019] As a further solution of the present invention: the seat cloth and the backrest cloth are both double-layer cloth.

[0020] As a further solution of the present invention: a pair of handrail tubes are installed with handrail foam tubes, a layer of handrail cloth is sleeved on the handrail foam tubes, the handrail cloth is a single-layer cloth, a zipper is provided on the handrail cloth, and the handrail cloth is sleeved on the handrail foam tubes through the zipper.

[0021] As described above, the foldable office chair provided by the present invention has the following beneficial effects:

[0022] The present invention utilizes the above-mentioned folding office chair. Compared with the prior art, due to the adoption of such a structure, a U-shaped piece is provided. The U-shaped piece is fixed to the inner side of the leg tube by a rivet, and an anti-slip pad is riveted to the outer side of the leg tube by the rivet. This solves the problem that the leg tube of the folding office chair directly contacts the ground when sitting or folding, which easily scratches and wears the leg tube, not only affecting the aesthetics of the chair, but also shortening its service life.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 This is a schematic structural diagram of a folding office chair applied for in the utility model;

[0026] Figure 2This is a schematic diagram of the leg structure of a foldable office chair applied for in the utility model;

[0027] Figure 3 This is a schematic diagram of the seat tube structure of a foldable office chair applied for in the utility model;

[0028] Figure 4 This is a schematic diagram of the armrest tube structure of a foldable office chair applied for in the utility model;

[0029] Figure 5 This is a schematic diagram of the U-shaped structure of a foldable office chair applied for in the utility model;

[0030] Figure 6 This is a schematic diagram of the damping structure of a foldable office chair applied for in the utility model;

[0031] Figure 7 This is a schematic diagram of the L-shaped structure of a foldable office chair applied for in the present utility model.

[0032] Summary of Figure Numbers:

[0033] 1. Chair frame; 2. Leg tube; 201. First fixing part; 202. Second fixing part; 3. Armrest tube; 301. First hinged part; 4. Backrest tube; 5. Seat tube; 501. Fixed part; 6. U-shaped part; 601. Second hinged part; 602. Third fixing part; 7. Connecting part; 8. L-shaped part; 801. Hinge part; 802. Connecting part; 9. Damping part; 901. First groove fixing part; 902. Second groove fixing part; 903. Damping part. DETAILED DESCRIPTION

[0034] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0035] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content. The specific structure can be described with reference to the drawings of the patent application.

[0036] This utility model application provides a folding office chair. In this embodiment, refer to Figures 1 to 7 As shown, it includes a chair frame 1, which is provided with a leg tube 2, an armrest tube 3, a backrest tube 4 and a seat tube 5. The armrest tube 3 is installed on the leg tube 2, the seat tube 5 is installed on the inner side of the armrest tube 3, and the backrest tube 4 is installed on the upper side of the armrest tube 3. The chair frame 1 is also provided with a U-shaped part 6, a connecting part 7 and an L-shaped part 8. The L-shaped part 8 is sleeved on the backrest tube 4 and hinged to the armrest tube 3 on one side. The connecting part 7 is hinged to the armrest tube 3 on one side and hinged to the seat tube 5 on the other side. The U-shaped part 6 is fixed to the inner side of the leg tube 2 by a rivet, and a non-slip pad is riveted to the outer side of the leg tube 2 by the rivet. The U-shaped part 6 is also hinged to the armrest tube 3.

[0037] Specifically, the specific structure of the leg tube 2 is shown below. Figure 1 and Figure 2 As shown, in this embodiment, the number of the leg tubes 2 is 2, and the leg tubes 2 are an integral part made of a lightweight metal material by bending. The leg tubes 2 are bent into an M-shape, and a pair of the leg tubes 2 are connected by a damping member 9. The leg tubes 2 are provided with a first fixing portion 201, and a mounting through hole for mounting the damping member 9 is opened on the first fixing portion 201. There are 4 groups of mounting through holes for mounting the damping member 9. The leg tube 2 is also provided with a second fixing portion 202, and a riveting through hole for riveting the U-shaped member 6 is opened on the second fixing portion 202. There are 2 groups of riveting through holes for riveting the U-shaped member 6.

[0038] It should be noted that the number of the U-shaped members 6 riveted on the leg tubes 2 is consistent with the number of riveting holes provided on a pair of the leg tubes 2. In this embodiment, the U-shaped members 6 are provided in four groups, such as Figure 1 shown.

[0039] Specifically, the specific structure of the seat tube 5 is shown below. Figure 1 and Figure 3 As shown, in this embodiment, the number of the seat tubes 5 is two, and the seat tubes 5 are an integral part made of a lightweight metal material by bending. The seat tubes 5 are bent into a U shape, and a pair of the seat tubes 5 are connected by a damping member 9. The seat tubes 5 are provided with a fixing portion 501, and a mounting through hole for mounting the damping member 9 is provided at the end of the fixing portion 501. There are four groups of mounting through holes for mounting the damping member 9. A mounting through hole for hinged connection with the connecting member 7 is provided in the middle of the fixing portion 501, and there are two groups of mounting through holes for hinged connection with the connecting member 7.

[0040] It should be noted that the number of the connecting members 7 hinged on the seat tube 5 is consistent with the number of hinged through holes provided on a pair of the seat tubes 5. In this embodiment, the connecting members 7 are provided in four groups, such as Figure 1 shown.

[0041] Specifically, the specific structure of the handrail tube 3 is shown below. Figure 1 and Figure 4 As shown, in this embodiment, the number of the handrail tubes 3 is 2, and the handrail tube 3 is an integral part made of lightweight metal material by bending, and the handrail tube 3 is bent into a U shape, and the handrail tube 3 is provided with a first hinge portion 301, and the end of the first hinge portion 301 is provided with a mounting through hole for hinged to the U-shaped part 6, and two groups of mounting through holes for hinged to the U-shaped part 6 are provided, and the upper and middle part of the first hinge portion 301 is provided with a mounting through hole for hinged to the connecting member 7, and two groups of mounting through holes for hinged to the connecting member 7 are provided. A mounting through hole hinged to the L-shaped part 8 is also provided at the U-shaped bending position on one side of the handrail tube 3, and one group of mounting through holes hinged to the L-shaped part 8 is provided. In this embodiment, the number of the L-shaped parts 8 hinged on the handrail tube 3 is consistent with the number of mounting through holes provided at the U-shaped bending position on one side of the handrail tube 3, and two groups of L-shaped parts 8 are provided.

[0042] Combine Figure 1 As shown, in this embodiment, the number of the backrest tubes 4 is 2, and the backrest tubes 4 are an integral part made of a lightweight metal material. The lower end of the backrest tube 4 is provided with a mounting through hole for socketing with the L-shaped part 8. In this embodiment, two groups of mounting through holes for socketing with the L-shaped part 8 are provided.

[0043] Specifically, the specific structure of the damping member 9 is shown below. Figure 1 and Figure 6 As shown, in this embodiment, the damping member 9 is provided with a first groove fixing portion 901, a second groove fixing portion 902 and a damping portion 903, the first groove fixing portion 901 is fixedly connected to the leg tube 2 or the seat tube 5, the second groove fixing portion 902 is fixedly connected to another leg tube 2 or another seat tube 5, the first groove fixing portion 901 and the second groove fixing portion 902 are hinged through the damping portion 903, and the first groove fixing portion 901 and the second groove fixing portion 902 are both provided with mounting through holes for fixed connection with the leg tube 2 or the seat tube 5, and two groups of mounting through holes for fixed connection with the leg tube 2 or the seat tube 5 are provided, and the damping portion 903 is provided with a hinge hole for hinged connection of the first groove fixing portion 901 and the second groove fixing portion 902.

[0044] Specifically, the specific structure of the U-shaped member 6 is shown below. Figure 1 and Figure 5As shown, in this embodiment, the U-shaped part 6 is an integral part made of a lightweight metal material by bending, and the U-shaped part 6 is provided with a second hinged part 601 and a third fixed part 602. The second hinged part 601 is provided with two groups, and the two groups of second hinged parts 601 are both rounded cones. The second hinged part 601 is provided with a hinge hole for hinged connection with the handrail tube 3, and the third fixed part 602 is rectangular, and the center of the third fixed part 602 is provided with a mounting through hole for fixed connection with the leg tube 2.

[0045] Specifically, the specific structure of the L-shaped member 8 is shown below. Figure 1 and Figure 7 As shown, in this embodiment, the L-shaped part 8 is an integral part made of a lightweight metal material by bending, and the L-shaped part 8 is provided with a hinge part 801 and a connecting part 802. The hinge part 801 is provided with two groups, and a mounting through hole for fixed connection with the backrest tube 4 is provided on the hinge part 801. The hinge part 801 is also provided with a hinge hole for hinged connection with the handrail tube 3. The two groups of hinge parts 801 are connected by the connecting part 802. The L-shaped part 8 is provided with a chamber for sleeved with the backrest tube 4 through the two groups of hinge parts 801 and the connecting part 802.

[0046] A pair of seat tubes 5 is provided with seat cloths, and a pair of backrest tubes 4 is provided with backrest cloths. Both the seat cloths and the backrest cloths are double-layer cloths.

[0047] A pair of the handrail tubes 3 are installed with handrail foam tubes, and a layer of handrail cloth is sleeved on the handrail foam tubes. The handrail cloth is a single-layer cloth, and a zipper is provided on the handrail cloth. The handrail cloth is sleeved on the handrail foam tubes through the zipper.

[0048] When assembling, combine Figures 1 to 7As shown, a pair of the leg tubes 2 are connected by a damping member 9, and the damping member 9 is fixed to the mounting through hole of the first fixing portion 201 of the leg tube 2 by riveting or screwing, and then the leg tube 2 fixes the U-shaped member 6 to the inner side of the leg tube 2 through a rivet through the riveting through hole on the second fixing portion 202, and an anti-slip pad is also riveted to the outer side of the leg tube 2 through the rivet, and then the second hinge portion 601 of the U-shaped member 6 is hinged to the mounting through hole on the first hinge portion 301 of the handrail tube 3 by a rivet or screw, and then the mounting through hole of the first hinge portion 301 of the handrail tube 3 is hinged to the connecting member 7 by a rivet or screw, The other end of the connecting member 7 is also hinged to the middle mounting hole of the fixing portion 501 of the seat tube 5 by a rivet or screw, and a pair of mounting holes at the ends of the fixing portion 501 of the seat tube 5 are fixedly connected to the first groove fixing portion 901 or the second groove fixing portion 902 of the damping member 9 by rivets or screws. The mounting hole on the U-shaped bending position on one side of the armrest tube 3 is hinged to the hinge hole on the hinge portion 801 of the L-shaped member 8 by a screw or rivet, and the mounting hole on the hinge portion 801 of the L-shaped member 8 is sleeved with the mounting hole at the lower end of the backrest tube 4 by a rivet or screw, thereby completing the assembly of the overall chair frame 1 structure of a folding office chair.

[0049] Next, the seat cloth is installed on a pair of seat tubes 5, and then the back cloth is installed on a pair of backrest tubes 4. Finally, the armrest foam tube and the armrest foam tube outer cover are combined and the armrest cloth is installed on the armrest tube 3 through a zipper. The above completes all the assembly work of a folding office chair.

[0050] As described above, the foldable office chair provided by the present invention has the following beneficial effects:

[0051] The present invention utilizes the above-mentioned folding office chair. Compared with the prior art, due to the adoption of such a structure, a U-shaped member 6 is provided. The U-shaped member 6 is fixed to the inner side of the leg tube 2 by a rivet, and an anti-slip pad is riveted to the outer side of the leg tube 2 by the rivet. This solves the problem that the leg tube 2 of the folding office chair directly contacts the ground when sitting or folding, which easily scratches and wears the leg tube 2, not only affecting the aesthetics of the chair, but also shortening its service life.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A folding office chair, comprising a chair frame, characterized in that: The chair frame is provided with a leg tube, an armrest tube, a backrest tube and a seat tube, the armrest tube is installed on the leg tube, the seat tube is installed on the inner side of the armrest tube, and the backrest tube is installed on the upper side of the armrest tube; The chair frame is further provided with a U-shaped piece, a connecting piece and an L-shaped piece, wherein the L-shaped piece is sleeved on the backrest tube and hinged to the armrest tube on one side; One side of the connecting piece is hinged to the handrail tube, and the other side is hinged to the seat tube; The U-shaped piece is fixed to the inner side of the leg tube through a rivet, and an anti-slip pad is riveted to the outer side of the leg tube through the rivet. The U-shaped piece is also hinged to the handrail tube.

2. A foldable office chair according to claim 1, characterized in that: The number of the leg tubes is 2, and the leg tubes are an integral part made of a lightweight metal material by bending. The leg tubes are bent into an M-shape. A pair of the leg tubes are connected by a damping member. The leg tubes are provided with a first fixing portion, and the first fixing portion is provided with an installation through hole for installing the damping member. The leg tubes are also provided with a second fixing portion, and the second fixing portion is provided with a rivet through hole for riveting the U-shaped member.

3. The foldable office chair according to claim 1, characterized in that: There are two seat tubes, each of which is an integral part made of a lightweight metal material by bending. The seat tube is bent into a U shape. A pair of seat tubes are connected by a damping member. The seat tube is provided with a fixing portion, and a mounting through hole for installing the damping member is provided at the end of the fixing portion. A mounting through hole for hinged connection with the connecting member is provided in the middle of the fixing portion.

4. The foldable office chair according to claim 1, characterized in that: There are two handrail tubes, each of which is an integral part made of a lightweight metal material by bending. The handrail tube is bent into a U-shape, and the handrail tube is provided with a first hinge portion. A mounting through hole for hinged connection with the U-shaped member is provided at the end of the first hinge portion, and a mounting through hole for hinged connection with the connecting member is provided in the upper middle portion of the first hinge portion. A mounting through hole for hinged connection with the L-shaped member is also provided at the U-shaped bend position on one side of the handrail tube. There are two backrest tubes, each of which is an integral piece made of a lightweight metal material. A mounting through hole for sleeve connection with an L-shaped piece is provided at the lower end of the backrest tube.

5. A foldable office chair according to claim 2 or 3, characterized in that: The damping member is provided with a first groove fixing portion, a second groove fixing portion and a damping portion, the first groove fixing portion is fixedly connected to the leg tube or the seat tube, the second groove fixing portion is fixedly connected to another leg tube or another seat tube, the first groove fixing portion and the second groove fixing portion are hinged through the damping portion, the first groove fixing portion and the second groove fixing portion are both provided with mounting through holes for fixed connection to the leg tube or the seat tube, and the damping portion is provided with a hinge hole for hinged connection of the first groove fixing portion and the second groove fixing portion.

6. The foldable office chair according to claim 1, characterized in that: The U-shaped part is an integral part made of lightweight metal material by bending. The U-shaped part is provided with a second hinged part and a third fixed part. The second hinged part is provided with two groups. The two groups of second hinged parts are both rounded cones. The second hinged part is provided with a hinge hole for hinged connection with the handrail tube. The third fixed part is rectangular, and a mounting through hole is provided in the center of the third fixed part for fixed connection with the leg tube.

7. The foldable office chair according to claim 1, characterized in that: The L-shaped part is an integral part made of lightweight metal material by bending. The L-shaped part is provided with a hinge part and a connecting part. The hinge part is provided with two groups. The hinge part is provided with a mounting through hole for fixed connection with the backrest tube. The hinge part is also provided with a hinge hole for hinged connection with the handrail tube. The two groups of hinge parts are connected by the connecting part. The L-shaped part is provided with a chamber for sleeve connection with the backrest tube through the two groups of hinge parts and the connecting part.

8. A foldable office chair according to claim 3 or 4, characterized in that: Seat cloths are installed on the pair of seat tubes, and backrest cloths are installed on the pair of backrest tubes.

9. The foldable office chair according to claim 8, characterized in that: The seat cloth and the backrest cloth are both double-layer cloths.

10. The foldable office chair according to claim 4, characterized in that: A pair of the handrail tubes are provided with handrail foam tubes, and a layer of handrail cloth is sleeved on the handrail foam tubes. The handrail cloth is a single-layer cloth and is provided with a zipper. The handrail cloth is sleeved on the handrail foam tubes through the zipper.

Images