Chair

Abstract

The utility model relates to the field of furniture, in particular to a chair which comprises two supporting frames, a first cross rod and supporting cloth, the two ends of the supporting cloth are connected to the two supporting frames respectively, each supporting frame comprises chair legs, armrests and reinforcing inclined rods, the upper ends of the chair legs are connected to the armrests, the two chair legs are distributed at intervals in the length direction of the armrests, and the reinforcing inclined rods are arranged on the first cross rod. The two ends of the reinforcing inclined rod are connected to the two chair legs respectively, the reinforcing inclined rod and the chair legs are arranged in an inclined mode, the length direction of the first transverse rod is perpendicular to the length direction of the armrests, and the two ends, in the length direction of the first transverse rod, of the first transverse rod are connected to the two supporting frames respectively. The armrests are connected to the upper ends of the two chair legs and are provided with first cross rods; according to the chair, the two supporting frames are arranged on the chair legs to fix the two supporting frames and achieve connection of the four chair legs, the reinforcing inclined rods are connected between the two chair legs of the same supporting frame, and the reinforcing inclined rods are obliquely arranged to improve the structural strength between the two chair legs, so that the stability of the chair during use is improved.

Description

Technical Field

[0001] The present application relates to the field of furniture, and in particular to a chair. Background Art

[0002] A chair is a piece of furniture for daily use, a seat with a backrest and armrests.

[0003] At present, the overall stability of the chair is not high. When the top of the chair is subjected to a large pressure, the structural strength of the chair legs is low. The chair legs are deformed and move away from each other under the action of pressure, causing damage to the chair and endangering the life safety of the user. Utility Model Content

[0004] In order to improve the structural strength of the chair and ensure the stability of the chair when in use, the present application provides a chair.

[0005] The present application provides a chair that adopts the following technical solution:

[0006] A chair comprises a support frame, a first cross bar and a support cloth, wherein two support frames are provided, and two ends of the support cloth are respectively connected to the two support frames, the support frame comprises chair legs, armrests and reinforcing diagonal bars, the upper ends of the chair legs are connected to the armrests, there are two chair legs, the two chair legs are spaced apart along the length direction of the armrests, the two ends of the reinforcing diagonal bars are respectively connected to the two chair legs, the reinforcing diagonal bars are inclined to the chair legs, the length direction of the first cross bar is perpendicular to the length direction of the armrests, and the two ends of the first cross bar along the length direction of the first cross bar are respectively connected to the two support frames.

[0007] By adopting the above technical solution, the armrest is connected to the upper ends of the two chair legs, and a first cross bar is arranged to fix the two support frames to realize the connection of the four chair legs. A reinforcing diagonal bar is connected between the two chair legs of the same support frame, and the reinforcing diagonal bar is arranged obliquely to improve the structural strength between the two chair legs, thereby improving the stability of the chair when in use.

[0008] Preferably, it further comprises a first longitudinal rod, wherein two ends of the first longitudinal rod are respectively connected to two first cross rods, and a plurality of first longitudinal rods are provided, and the plurality of first longitudinal rods are spaced apart and distributed along the length direction of the first cross rod.

[0009] By adopting the above technical solution, the two ends of the first longitudinal rod are respectively connected to the two first transverse rods, thereby improving the structural strength of the chair; the first longitudinal rod is used to disperse the force of the two reinforcing diagonal rods, thereby improving the service life of the chair.

[0010] Preferably, the supporting cloth is made of mesh cloth.

[0011] By adopting the above technical solution, the supporting cloth is made of mesh cloth, which has strong air permeability, which is convenient for enhancing the heat dissipation performance of the chair, and the mesh cloth has a certain elasticity, which is convenient for better supporting the user's body and improving the comfort of the chair.

[0012] Preferably, it also includes a mounting frame, which includes a support rod and a connecting cross rod, wherein two support rods are provided, and the two support rods are respectively connected to the two support frames, and the two ends of the supporting cloth are respectively connected to the two support rods, and the support rods are bent, and the support rods cooperate with the supporting cloth to form a chair surface and a backrest, and the two ends of the connecting cross rod are respectively connected to the two support rods.

[0013] By adopting the above technical solution, the two ends of the supporting cloth are respectively connected to two supporting rods, and the supporting rods are bent so that the supporting cloth forms a chair surface and a backrest to fit the body curve of the user and improve the comfort of the chair.

[0014] Preferably, the support rod includes a backrest section and a seat surface section, the upper end of the backrest section is inclined in a direction away from the seat surface section, the seat surface section includes a first inclined section and a second inclined section, one end of the first inclined section is connected to an end of the second inclined section close to the backrest section, the end of the first inclined section away from the second inclined section is inclined downward, and the end of the second inclined section away from the first inclined section is inclined downward.

[0015] By adopting the above technical solution, the end of the first inclined section away from the second inclined section is tilted downward, so that the user has a tendency to slide closer to the backrest, so that the user's back fits the backrest, and the end of the second inclined section away from the first inclined section is tilted downward, so that the support cloth connected to the second inclined section fits the user's legs, so that the overall support cloth conforms to the ergonomic setting, thereby improving the comfort of the chair.

[0016] Preferably, the mounting frame also includes an adjustment component, which is located on the side of the backrest section away from the seat surface section, and the adjustment component includes an adjustment sleeve, a rotating seat and an adjustment seat, the rotating seat is connected to the backrest section, the adjustment seat is connected to the other backrest section, the adjustment sleeve is connected between the rotating seat and the adjustment seat, one end of the adjustment sleeve is rotatably connected to the rotating seat, and the other end of the adjustment sleeve is threadedly connected to the adjustment seat.

[0017] By adopting the above technical solution, the distance between the backrest section and one end of the seat surface section is adjusted through the adjustment component, so that the support cloth connected between the two backrest sections is in a taut state to meet the use requirements of the support cloth and improve the service life of the chair.

[0018] Preferably, it also includes a baffle cover, the support rod is a hollow tube, the support rod is provided with a mounting seam, the mounting seam extends along the length direction of the support rod, both ends of the support cloth are connected to limit strips, the limit strips are embedded in the support rod, the support cloth is embedded in the mounting seam, and the baffle cover is connected to both ends of the support rod along the length direction of the support rod.

[0019] By adopting the above technical solution, the two ends of the supporting cloth are connected to the limiting strips, so that the limiting strips are embedded in the support rod, thereby improving the stability of the connection between the supporting cloth and the support rod. The blocking cover is connected to the two ends of the support rod, and is used to abut the two ends of the limiting strip along the length direction of the limiting strip, so as to achieve relative fixation between the limiting strip and the support rod along the length direction of the support rod; and it is convenient to remove the blocking cover to replace the supporting cloth, thereby improving the service life of the chair.

[0020] Preferably, the two ends of the reinforcing diagonal rod along the length direction are connected with first connecting seats, and the two first connecting seats are located on both sides of the reinforcing diagonal rod. The first connecting seat is provided with a first mounting hole, and the first mounting hole is used for a bolt to pass through and then be threadedly connected to the chair leg.

[0021] By adopting the above technical solution, the two ends of the reinforcing diagonal rod are connected with a first connecting seat, and the two first connecting seats are located on both sides of the reinforcing diagonal rod to enhance the stability of the connection between the reinforcing diagonal rod and the chair legs, improve the structural strength of the chair frame, and thereby improve the load-bearing performance of the chair frame.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The armrest is connected to the upper ends of the two chair legs, and a first crossbar is set to fix the two support frames to achieve the connection of the four chair legs. A reinforcing diagonal rod is connected between the two chair legs of the same support frame. The reinforcing diagonal rod is tilted to improve the structural strength between the two chair legs, thereby improving the stability of the chair when in use;

[0024] 2. The distance between the backrest section and one end of the seat surface section is adjusted by adjusting the assembly, so that the support cloth connected between the two backrest sections is in a tight state, so as to meet the use requirements of the support cloth and improve the service life of the chair;

[0025] 3. Both ends of the reinforcing diagonal rod are connected with first connecting seats, and the two first connecting seats are located on both sides of the reinforcing diagonal rod to enhance the stability of the connection between the reinforcing diagonal rod and the chair legs, improve the structural strength of the chair frame, and further improve the load-bearing performance of the chair frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the chair of Example 1.

[0027] Figure 2 This is a cross-sectional view of the chair of Example 1.

[0028] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0029] Figure 4 It is a structural schematic diagram of another embodiment of the chair in Embodiment 1.

[0030] Figure 5 yes Figure 2 Enlarged view of point B in the middle.

[0031] Figure 6 It is a schematic diagram of the structure of the chair frame of Example 1.

[0032] Figure 7 It is a structural schematic diagram of another embodiment of the chair frame of embodiment 1.

[0033] Figure 8 It is a structural schematic diagram of another embodiment of the chair frame of embodiment 1.

[0034] Fig. 9 It is a schematic structural diagram of the chair of Example 2.

[0035] Fig.10 It is a schematic diagram of the structure of the chair frame of Example 2.

[0036] Fig.11 It is a schematic structural diagram of the chair of Example 3.

[0037] Fig.12 It is a schematic diagram of the structure of the chair of Example 4.

[0038] Description of reference numerals:

[0039] 1. Chair frame; 11. Support frame; 111. Chair legs; 112. Armrests; 113. Strengthening diagonal rod; 1131. First connecting seat; 11311. First mounting hole; 12. First crossbar; 121. Second connecting seat; 1211. Second mounting hole; 13. First longitudinal rod; 131. Fourth mounting hole; 14. Mounting frame; 141. Support rod; 1411. Backrest section; 1412. Seat section; 14121. First tilting section; 14122 , second inclined section; 1413, mounting seam; 142, connecting cross bar; 1421, first connecting rod; 14211, first fixing portion; 1422, second connecting rod; 1423, third connecting rod; 14231, second fixing portion; 143, adjusting assembly; 1431, adjusting sleeve; 1432, rotating seat; 1433, adjusting seat; 144, blocking cover; 15, second cross bar; 151, third connecting seat; 1511, third mounting hole;

[0040] 2. Support fabric; 21. Limiting strip; 22. Backrest; 23. Chair surface. DETAILED DESCRIPTION

[0041] The present application is further described in detail below in conjunction with the accompanying drawings.

[0042] The embodiment of the present application discloses a chair.

[0043] Example 1

[0044] Reference Figure 1 A chair includes a chair frame 1. The chair frame 1 includes a support frame 11. Two support frames 11 are provided, and the support frame 11 includes chair legs 111, armrests 112 and reinforcing diagonal rods 113. The upper ends of the chair legs 111 are fixedly connected to the lower ends of the armrests 112, and the length direction of the chair legs 111 is vertical. In this embodiment, one armrest 112 corresponds to two chair legs 111, and the two chair legs 111 are spaced apart along the length direction of the armrests 112. The armrests 112 are arranged in an arc shape as a whole to fit the elbows and palms of the user. The reinforcing diagonal rods 113 are arranged obliquely with the chair legs 111, and the two ends of the reinforcing diagonal rods 113 along the length direction of the reinforcing diagonal rods 113 are respectively fixedly connected to the two chair legs 111 of the same support frame 11. The two ends of the reinforcing oblique rod 113 along the length direction of the reinforcing oblique rod 113 are respectively fixedly connected with the first connecting seats 1131, the length direction of the two first connecting seats 1131 is parallel to the length direction of the chair leg 111, and the two first connecting seats 1131 are located on both sides of the reinforcing oblique rod 113. In this embodiment, the angle between the first connecting seat 1131 and the reinforcing oblique rod 113 is an obtuse angle. The side surface of the first connecting seat 1131 away from the reinforcing oblique rod 113 is in contact with the side surface of the chair leg 111 in the same support frame 11 facing the other chair leg 111. The first connecting seat 1131 is provided with a plurality of first mounting holes 11311, and the plurality of first mounting holes 11311 are spaced apart along the length direction of the first connecting seat 1131, and the first mounting holes 11311 are used for bolts to pass through and then be threadedly connected with the chair leg 111. In this embodiment, two first mounting holes 11311 are provided.

[0045] Reference Figure 1 and Figure 2 The chair frame 1 further includes a first crossbar 12 and a first longitudinal bar 13. The length direction of the first crossbar 12 is perpendicular to the length direction of the armrest 112, and both ends of the first crossbar 12 are respectively fixedly connected to the two chair legs 111. In this embodiment, two first crossbars 12 are provided, and the two first crossbars 12 are spaced apart along the length direction of the armrest 112.

[0046] Reference Figure 2 and Figure 3, the first cross bar 12 is fixedly connected with the second connecting seat 121 at both ends along the length direction of the first cross bar 12, and the length direction of the second connecting seat 121 is parallel to the length direction of the chair leg 111. The side surface of the second connecting seat 121 away from the first cross bar 12 is in contact with the side surface of the support frame 11 facing the other support frame 11, and the second connecting seat 121 is provided with a plurality of second mounting holes 1211, and the plurality of second mounting holes 1211 are divided into two groups, and the two groups of second mounting holes 1211 are distributed on both sides of the first cross bar 12 along the length direction of the second connecting seat 121, and the bolts pass through the chair leg 111 and the second mounting holes 1211 in sequence and are threadedly connected with the nuts. In this embodiment, there are two second mounting holes 1211. The length direction of the first longitudinal bar 13 is horizontal, and the two ends of the first longitudinal bar 13 are fixedly connected to the two first cross bars 12, and there are a plurality of first longitudinal bars 13, and the plurality of first longitudinal bars 13 are distributed at intervals along the length direction of the first cross bar 12. The first longitudinal rod 13 is provided with fourth mounting holes 131 at both ends thereof, and the fourth mounting holes 131 are used for passing bolts. In this embodiment, two first longitudinal rods 13 are provided, and the two first longitudinal rods 13 are located at both ends of the first crossbar 12 along the length direction of the first crossbar 12, and the first longitudinal rod 13 is located below the first crossbar 12, and the fourth mounting holes 131 and the second mounting holes 1211 overlap.

[0047] Reference Figure 4 In another embodiment, the first longitudinal rod 13 is fixedly connected to the lower ends of the two first cross bars 12 at both ends along the length direction of the first longitudinal rod 13, and the axis of the fourth mounting hole 131 is vertical. The fourth mounting hole 131 is used for the bolt to pass through and then be threadedly connected to the first cross bar 12.

[0048] Reference Figure 1 and Figure 2 The chair frame 1 further includes a second crossbar 15. The length direction of the second crossbar 15 is parallel to the length direction of the first crossbar 12, and the two ends of the second crossbar 15 along the length direction of the second crossbar 15 are respectively fixedly connected to the two chair legs 111. The number of the second crossbars 15 is the same as the number of the first crossbars 12 and corresponds one to one.

[0049] Reference Figure 2 and Figure 5The second cross bar 15 is fixedly connected to the third connection seat 151 at both ends along the length direction of the second cross bar 15, and the length direction of the third connection seat 151 is parallel to the length direction of the chair leg 111. The third connection seat 151 is provided with a plurality of third mounting holes 1511 on one side surface away from the second cross bar 15 and a side surface of the support frame 11 facing the other support frame 11. The third connection seat 151 is provided with a plurality of third mounting holes 1511, and the plurality of third mounting holes 1511 are divided into two groups. The two groups of third mounting holes 1511 are distributed on both sides of the second cross bar 15 along the length direction of the third connection seat 151. The bolts are sequentially passed through the chair leg 111 and the third mounting holes 1511 and then threadedly connected with the nuts. In this embodiment, two third mounting holes 1511 are provided.

[0050] Reference Figure 1 and Figure 5 , a chair also includes a support cloth 2. The chair frame 1 also includes a mounting frame 14. The mounting frame 14 includes a support rod 141 and a blocking cover 144. Two support rods 141 are provided, and the two support rods 141 are respectively fixedly connected to the upper surfaces of the two second cross bars 15, and the bolts pass through the third mounting holes 1511 located above the second cross bars 15 and are threadedly connected to the support rods 141. The two ends of the support cloth 2 along the length direction of the first cross bar 12 are respectively connected to the two support rods 141, and the support cloth 2 is located above the support rods 141. In this embodiment, the support cloth 2 is made of mesh cloth.

[0051] The support rod 141 is a hollow pipe, and a mounting seam 1413 is provided on one side of the support rod 141 close to the supporting cloth 2, and the mounting seam 1413 extends along the length direction of the support rod 141. The supporting cloth 2 is fixedly connected to the limiting strips 21 at both ends along the length direction of the first cross bar 12, and the limiting strips 21 are embedded in the support rod 141, and the supporting cloth 2 is embedded in the mounting seam 1413. The blocking cover 144 is fixedly connected to both ends of the support rod 141 along the length direction to prevent the limiting block from detaching from the support rod 141 along the length direction of the mounting seam 1413.

[0052] Reference Figure 1 and Figure 6 , the support rod 141 is bent, and the support rod 141 cooperates with the support cloth 2 to form a seat surface and a backrest. In this embodiment, the support rod 141 is bent into an L shape. The support rod 141 includes a backrest section 1411. The lower end of the backrest section 1411 is fixedly connected to one end of the seat surface section 1412, and the upper end of the backrest section 1411 is inclined to a side away from the seat surface section 1412. In this embodiment, the backrest section 1411 is close to the end of the reinforcing diagonal rod 113 that is inclined downward.

[0053] Reference Figure 7 In another embodiment, the backrest section 1411 is away from the end of the reinforcing diagonal rod 113 that is inclined downward.

[0054] Reference Figure 8In another embodiment, two reinforcing diagonal rods 113 are provided, one reinforcing diagonal rod 113 is arranged to be tilted downward at one end close to the backrest section 1411, and the other reinforcing diagonal rod 113 is arranged to be tilted downward at one end away from the backrest section 1411.

[0055] The support rod 141 also includes a seat surface section 1412. The seat surface section 1412 includes a first inclined section 14121 and a second inclined section 14122. One end of the first inclined section 14121 is fixedly connected to the lower end of the backrest section 1411, and the other end of the first inclined section 14121 is fixedly connected to one end of the second inclined section 14122. The end of the first inclined section 14121 away from the second inclined section 14122 is tilted downward, and the end of the second inclined section 14122 away from the first inclined section 14121 is tilted downward. In this embodiment, the support rod 141 is integrally arranged, and the connection between the first inclined section 14121 and the backrest section 1411 is arc-shaped.

[0056] The mounting frame 14 also includes an adjustment component 143. The adjustment component 143 is located on a side of the backrest segment 1411 away from the seat surface segment 1412. The adjustment component 143 is connected between the two backrest segments 1411. The adjustment component 143 includes an adjustment sleeve 1431, an adjustment seat 1433 and a rotating seat 1432. One end of the rotating seat 1432 is fixedly connected to a side of the backrest segment 1411 facing the other backrest segment 1411, and the axis direction of the rotating seat 1432 is parallel to the length direction of the first cross bar 12. One end of the adjustment seat 1433 is fixedly connected to a side of the other backrest segment 1411 facing the rotating seat 1432, and the axis of the adjustment seat 1433 coincides with the axis of the rotating seat 1432. The adjusting sleeve 1431 is connected between the adjusting seat 1433 and the rotating seat 1432 , one end of the adjusting sleeve 1431 is coaxially rotatably connected to one end of the rotating seat 1432 , and the other end of the adjusting sleeve 1431 is threadedly connected to the adjusting seat 1433 .

[0057] The implementation principle of the embodiment 1 is as follows: a first horizontal rod 12, a first longitudinal rod 13 and a reinforcing diagonal rod 113 are provided to enhance the structural strength between the chair legs 111 and to increase the service life of the chair.

[0058] An adjustment component 143 is provided so that when the supporting cloth 2 connected to the backrest section 1411 is in a relaxed state, the adjusting sleeve 1431 can be rotated to move the rotating seat 1432 and the adjusting seat 1433 away from each other, so that the two backrest sections 1411 close to the side of the adjustment component 143 are moved away from each other, so that the supporting cloth 2 connected to the backrest section 1411 is in a taut state.

[0059] Example 2

[0060] Reference Fig. 9The difference between this embodiment and the first embodiment is that the second cross bar 15 is provided with one, and the second cross bar 15 is located on the side of the support frame 11 close to the backrest section 1411. The second cross bar 15 is respectively fixedly connected with third connecting seats 151 at both ends along the length direction of the second cross bar 15, and the length direction of the third connecting seat 151 is parallel to the length direction of the chair leg 111. The third connecting seat 151 is connected to the side surface of the chair leg 111 of the same support frame 11 facing the other chair leg 111, and the third connecting seat 151 is provided with a plurality of third mounting holes 1511, and the plurality of third mounting holes 1511 are distributed at intervals along the length direction of the chair leg 111, and the third mounting holes 1511 are used for bolts to pass through and then be threadedly connected with the chair leg 111. In this embodiment, two third mounting holes 1511 are provided.

[0061] The support rod 141 includes a backrest section 1411 and a seat surface section 1412. The lower end of the backrest section 1411 is located above the second crossbar 15, and the upper end of the backrest section 1411 is inclined to the side away from the seat surface section 1412. The seat surface section 1412 includes a first inclined section 14121 and a second inclined section 14122. One end of the first inclined section 14121 close to the backrest section 1411 is fixedly connected to a side surface of the second crossbar 15 facing the seat surface section 1412, and the other end of the first inclined section 14121 is fixedly connected to one end of the second inclined section 14122. One end of the first inclined section 14121 away from the second inclined section 14122 is inclined downward, and one end of the second inclined section 14122 away from the first inclined section 14121 is inclined downward. The support cloth 2 includes a backrest 22 and a seat surface 23. The two ends of the backrest portion 22 along the length direction of the first cross bar 12 are respectively fixedly connected to the two backrest sections 1411 , and the two ends of the seat surface portion 23 along the length direction of the first cross bar 12 are respectively fixedly connected to the two seat surface sections 1412 .

[0062] Reference Fig.10The mounting frame 14 further includes a connecting cross bar 142. The connecting cross bar 142 includes a first connecting rod 1421, a second connecting rod 1422 and a third connecting rod 1423. The length directions of the first connecting rod 1421, the second connecting rod 1422 and the third connecting rod 1423 are all parallel to the length direction of the first cross bar 12. The first connecting rod 1421 is bent at both ends along the length direction toward the direction close to the supporting cloth 2 to form a first fixing portion 14211. The two first fixing portions 14211 are respectively fixedly connected to the side surfaces of the two second inclined sections 14122 facing the other second inclined section 14122. The second connecting rod 1422 is located on the side of the backrest section 1411 close to the seat surface section 1412. The two ends of the second connecting rod 1422 are respectively fixedly connected to the side surfaces of the two backrest sections 1411 facing the other backrest section 1411. The third connecting rod 1423 is located at the other side of the backrest segment 1411 , and both ends of the third connecting rod 1423 are bent toward the direction close to the supporting cloth 2 to form a second fixing portion 14231 . The two second fixing portions 14231 are respectively fixedly connected to the side surfaces of the two backrest segments 1411 facing the other backrest segment 1411 .

[0063] The implementation principle of Example 2 is as follows: the first connecting rod 1421 is used to support the lower surface of the seat portion 23, and the third connecting rod 1423 is used to support the side surface of the backrest portion 22 away from the seat portion 23, so as to satisfy the supporting function of the chair frame 1 on the supporting cloth 2; and the third connecting rod 1423 has a tendency to expand to both sides in the length direction of the third connecting rod 1423, so that the supporting cloth 2 connected to the two backrest sections 1411 is in a taut state.

[0064] Example 3

[0065] Reference Fig.11 The difference between this embodiment and embodiment 2 is that one end of the armrest 112 away from the backrest section 1411 is fixedly connected to the upper end of the chair leg 111, and the armrest 112 is arranged in an arc shape as a whole to fit the user's elbow and palm.

[0066] Example 4

[0067] Reference Fig.12 The difference between this embodiment and embodiment 1 is that one end of the armrest 112 away from the backrest section 1411 is fixedly connected to the upper end of the chair leg 111, and the armrest 112 is arranged in an arc shape as a whole to fit the elbow and palm of the user.

[0068] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A chair, characterized in that: The invention comprises a support frame (11), a first cross bar (12) and a support cloth (2); two support frames (11) are provided; two ends of the support cloth (2) are respectively connected to the two support frames (11); the support frame (11) comprises a chair leg (111), an armrest (112) and a reinforcing diagonal rod (113); the upper end of the chair leg (111) is connected to the armrest (112); two chair legs (111) are provided; the two chair legs (111) are spaced apart along the length direction of the armrest (112); the two ends of the reinforcing diagonal rod (113) are respectively connected to the two chair legs (111); the reinforcing diagonal rod (113) and the chair legs (111) are arranged in an inclined manner; the length direction of the first cross bar (12) is perpendicular to the length direction of the armrest (112); the two ends of the first cross bar (12) along the length direction of the first cross bar (12) are respectively connected to the two support frames (11).

2. The chair according to claim 1, characterized in that: It also comprises a first longitudinal rod (13); the two ends of the first longitudinal rod (13) are respectively connected to the two first cross rods (12); a plurality of the first longitudinal rods (13) are provided; and the plurality of the first longitudinal rods (13) are spaced apart and distributed along the length direction of the first cross rod (12).

3. The chair according to claim 1, characterized in that: The supporting cloth (2) is made of mesh cloth.

4. The chair according to claim 1, characterized in that: It also comprises a mounting frame (14); the mounting frame (14) comprises a support rod (141) and a connecting cross rod (142); two support rods (141) are provided; the two support rods (141) are respectively connected to two support frames (11); the two ends of the supporting cloth (2) are respectively connected to the two support rods (141); the support rods (141) are bent; the support rods (141) cooperate with the supporting cloth (2) to form a seat surface and a backrest; the two ends of the connecting cross rod (142) are respectively connected to the two support rods (141).

5. The chair according to claim 4, characterized in that: The support rod (141) comprises a backrest section (1411) and a seat surface section (1412); the upper end of the backrest section (1411) is inclined in a direction away from the seat surface section (1412); the seat surface section (1412) comprises a first inclined section (14121) and a second inclined section (14122); one end of the first inclined section (14121) is connected to an end of the second inclined section (14122) close to the backrest section (1411); the end of the first inclined section (14121) away from the second inclined section (14122) is inclined downward; and the end of the second inclined section (14122) away from the first inclined section (14121) is inclined downward.

6. The chair according to claim 5, characterized in that: The mounting frame (14) further comprises an adjustment component (143); the adjustment component (143) is located on a side of the backrest section (1411) away from the seat surface section (1412); the adjustment component (143) comprises an adjustment sleeve (1431), a rotating seat (1432) and an adjustment seat (1433); the rotating seat (1432) is connected to the backrest section (1411); the adjustment seat (1433) is connected to another backrest section (1411); the adjustment sleeve (1431) is connected between the rotating seat (1432) and the adjustment seat (1433); one end of the adjustment sleeve (1431) is rotatably connected to the rotating seat (1432); and the other end of the adjustment sleeve (1431) is threadedly connected to the adjustment seat (1433).

7. The chair according to claim 4, characterized in that: It also comprises a blocking cover (144); the support rod (141) is a hollow pipe; the support rod (141) is provided with a mounting slit (1413); the mounting slit (1413) extends along the length direction of the support rod (141); both ends of the support cloth (2) are connected to limit strips (21); the limit strips (21) are embedded in the support rod (141); the support cloth (2) is embedded in the mounting slit (1413); the blocking cover (144) is connected to both ends of the support rod (141) along the length direction of the support rod (141).

8. The chair according to claim 1, characterized in that: The two ends of the reinforcing diagonal rod (113) along the length direction are connected to first connection seats (1131); the two first connection seats (1131) are located on both sides of the reinforcing diagonal rod (113); the first connection seat (1131) is provided with a first mounting hole (11311); the first mounting hole (11311) is used for a bolt to pass through and then be threadedly connected to the chair leg (111).

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