A rattan woven chair with strong bending resistance

Abstract

This utility model discloses a rattan woven chair with strong bending resistance, relating to the field of rattan woven products. It includes a chair frame body, a rattan seat cushion fixedly connected to the frame body, armrests fixedly connected to both sides of the seat cushion, an adjustable support device slidably connected between the rear ends of the armrests, a rotating frame at the rear end of the seat cushion, and a rattan backrest rotatably connected to the frame. The backrest is located between the armrests and the adjustable support device. A sliding slider is provided on the side of the backrest, and a vertically downward support rod is hinged to the slider. The support rod is slidably connected to the adjustable support device. When in use, the backrest tilts under pressure. Under the action of the slider and the adjustable support device, the support rod moves downward synchronously, eventually contacting the ground to provide support. This improves the stress distribution on the rattan woven chair, effectively avoiding uneven stress distribution and enhancing its bending resistance.

Description

Technical Field

[0001] This utility model belongs to the field of rattan weaving products, specifically relating to a rattan woven chair with strong bending resistance. Background Technology

[0002] A rattan chair is a type of chair with a frame made of coarse rattan. It is made by binding rattan skin, core, and strips together to form various types of chairs, including rattan stools, rattan armchairs, and rattan grand master chairs. The seat and back of a rattan chair have a certain degree of elasticity, making them highly comfortable. However, due to limitations in raw materials and production processes, rattan chairs have relatively poor overall structural strength compared to conventional wooden or metal chairs.

[0003] Patent application number 202321739058.9 discloses a rattan-woven chair with strong bending resistance. Its structure includes a rattan backrest, a rattan seat cushion at the bottom of the outer wall of the backrest, and a support mechanism at the bottom of the seat cushion for strong bending resistance. The support mechanism includes a support rod fixedly connected to the bottom of the seat cushion, a crossbar fixedly connected to one side of the outer wall of the support rod, an inclined rod fixedly connected to the top of the outer wall of the crossbar, a sliding groove on one side of the outer wall of the crossbar, a sliding rod slidably connected inside the sliding groove, a movable rod slidably connected inside the sliding groove, a sleeve rod slidably connected to the outer wall of the movable rod, and a bottom frame fixedly connected to the outer walls of the sleeve rod and the sliding rod. The support mechanism supports the rattan chair, improving its stability during use, and the crossbar and inclined rod further enhance its bending resistance during use. However, in the above structure, when the rattan chair back is tilted and compressed, the overall stress distribution of the rattan chair shifts, and the center of gravity shifts outward. The tension provided by the adjustment mechanism is an internal force and cannot improve the overall stress distribution. The uneven stress distribution of the rattan chair makes the overall structure of the rattan chair prone to bending. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a rattan woven chair with strong bending resistance. A flexibly adjustable support structure is set on the back of the rattan woven chair, which greatly improves the bending resistance of the rattan woven chair.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0006] A rattan woven chair with strong bending resistance includes a chair frame body, a rattan seat cushion fixedly connected to the chair frame body, armrests located on both sides of the rattan seat cushion fixedly connected to the chair frame body, an adjustable support device slidably connected between the rear ends of the two armrests, a rotating frame at the rear end of the rattan seat cushion, and a rattan chair back rotatably connected to the rotating frame, the rattan chair back being located between the armrests and the adjustable support device, a sliding slider on the side of the rattan chair back, a vertically downward support rod device hinged to the slider, the support rod device being slidably connected to the adjustable support device, when the rattan chair back is pressed downwards, the support rod device moves downwards synchronously under the action of the slider and the adjustable support device, the support rod device eventually contacts the ground to provide support, improving the stress distribution of the rattan woven chair, effectively avoiding uneven stress distribution throughout the rattan woven chair, and enhancing the bending resistance of the rattan woven chair.

[0007] As a further feature of the above solution, the armrest is horizontally positioned and higher than the rattan seat cushion. The rear end of the armrest has a horizontal mounting groove with an outward opening. A positioning knob is threaded onto the armrest, with the lower end of the positioning knob protruding into the mounting groove. A limiting surface is provided on the inner side of the armrest, and the limiting surface is slidably connected to the two sides of the rattan chair back. The limiting surface limits the rattan chair back in the left and right directions.

[0008] As a further feature of the above solution, symmetrically arranged reinforcing plates are fixedly connected to the left and right ends of the back side of the rattan chair. A fixed shaft is fixedly connected between the lower ends of the reinforcing plates. The fixed shaft is rotatably connected to the rotating frame. A sliding groove is opened on the reinforcing plate. A guide rod is fixedly connected in the sliding groove. The guide rod is slidably connected to the slider. A buffer spring is sleeved on the guide rod. The buffer spring is located under the slider. A rotating groove is opened on the slider.

[0009] As a further feature of the above solution, the adjustable support device includes an adjustable support plate, with mounting plates fixedly connected vertically to both ends of the adjustable support plate. The mounting plates are slidably connected to the mounting grooves. A positioning groove is opened on the upper surface of the mounting plate, and a locking tooth is provided in the positioning groove. When the positioning knob is rotated, the lower end of the positioning knob enters the mounting groove and then enters the positioning groove, finally engaging with the locking tooth to fix the adjustable support device to the armrest. A cushioning pad is provided on the side of the adjustable support plate near the rattan chair back.

[0010] As a further provision of the above solution, the support rod device includes a connecting rod with a hinge shaft at the upper end and an elastic support rod fixedly connected to the lower end of the connecting rod. The elastic support rod can be manually adjusted in length to adjust the maximum tilt angle of the rattan chair back in conjunction with the adjustment bracket device. The connecting rod is slidably connected to the adjustment bracket plate, and the hinge shaft is hinged to the rotating groove.

[0011] This utility model has the following beneficial effects:

[0012] The rattan chair back is hinged to the rattan seat cushion. An adjustable support device is located at the rear of the armrests. A sliding slider is located on the side of the rattan chair back, and a buffer spring is installed between the slider and the rattan chair back. A support rod device is hinged to the slider and slides downwards, simultaneously connected to the adjustment support device. When the rattan chair back is pressed and tilts downwards, the support rod device moves downwards synchronously under the action of the slider and the adjustment support device. The support rod device eventually contacts the ground and provides support, providing elastic support to the rattan chair back, improving the overall stress distribution of the rattan chair, effectively avoiding uneven stress distribution, and enhancing the rattan chair's bending resistance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the appearance of this utility model;

[0014] Figure 2 This is a front view of the present invention;

[0015] Figure 3 This is a schematic diagram of the handrail of this utility model;

[0016] Figure 4 This is a schematic diagram of the rattan chair back of this utility model;

[0017] Figure 5 This is an assembly diagram of the adjusting bracket device and the support rod device of this utility model;

[0018] Figure 6 This is a schematic diagram of the state when the present invention is in use.

[0019] 1. Chair frame body; 2. Rattan seat cushion; 3. Armrests; 4. Adjustment bracket device; 5. Rattan chair back; 6. Support rod device; 201. Rotating frame; 301. Limiting surface; 302. Mounting groove; 303. Positioning knob; 401. Adjustment bracket plate; 4011. Buffer pad; 402. Mounting plate; 4021. Positioning groove; 4022. Locking tooth; 501. Reinforcing plate; 502. Fixed shaft; 503. Slide groove; 504. Guide rod; 505. Sliding block; 5051. Rotating groove; 506. Buffer spring; 601. Connecting rod; 602. Hinge shaft; 603. Elastic support rod. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-6 This application will be described in detail with reference to the embodiments.

[0022] A rattan woven chair with strong bending resistance includes a chair frame body 1, a rattan seat cushion 2 fixedly connected to the chair frame body 1, armrests 3 located on both sides of the rattan seat cushion 2 fixedly connected to the chair frame body 1, an adjusting bracket device 4 slidably connected between the rear ends of the two armrests 3, a rotating frame 201 provided at the rear end of the rattan seat cushion 2, a rattan chair back 5 rotatably connected to the rotating frame 201, the rattan chair back 5 located between the armrests 3 and the adjusting bracket device 4, a sliding slider 505 provided on the rear side of the rattan chair back 5, a vertically downward support rod device 6 hinged to the slider 505, the support rod device 6 slidably connected to the adjusting bracket device 4, when the rattan chair back 5 is pressed and tilted downward, under the action of the slider 505 and the adjusting bracket device 4, the support rod device 6 moves downward synchronously, and the support rod device 6 eventually contacts the ground to provide support, improving the stress distribution of the rattan woven chair, effectively avoiding uneven stress distribution of the rattan woven chair, and enhancing the bending resistance of the rattan woven chair.

[0023] like Figure 3 As shown, the armrest 3 is horizontally positioned and higher than the rattan seat cushion 2. The rear end of the armrest 3 has a horizontal mounting groove 302 with an outward opening. A positioning knob 303 is threaded onto the armrest 3, and the lower end of the positioning knob 303 extends into the mounting groove 302. A limiting surface 301 is opened on the inner side of the armrest 3. The limiting surface 301 is slidably connected to the two sides of the rattan chair back 5. The limiting surface 301 limits the rattan chair back 5 in the left and right directions, ensuring that the rattan chair back 5 can rotate and swing stably.

[0024] like Figure 4 As shown, symmetrically arranged reinforcing plates 501 are fixedly connected to the left and right ends of the rear side of the rattan chair back 5. A fixed shaft 502 is fixedly connected between the lower ends of the reinforcing plates 501. The fixed shaft 502 is rotatably connected to the rotating frame 201. A sliding groove 503 is opened on the reinforcing plate 501. A guide rod 504 is fixedly connected in the sliding groove 503. The guide rod 504 is slidably connected to the slider 505. A buffer spring 506 is sleeved on the guide rod 504. The buffer spring 506 is located on the lower side of the slider 505. A rotating groove 501 is opened on the slider 505.

[0025] like Figure 5As shown, the adjusting bracket device 4 includes an adjusting bracket plate 401. Mounting plates 402 are vertically fixedly connected to both ends of the adjusting bracket plate 401. The mounting plates 402 are slidably connected to the mounting grooves 302. A positioning groove 4021 is formed on the upper surface of the mounting plate 402. Locking teeth 4022 are provided within the positioning groove 4021. When the positioning knob 303 is rotated, the lower end of the positioning knob 303 inserts into the mounting groove 302 and then into the positioning groove 4021, finally engaging with the locking teeth 4022 to fix the adjusting bracket device 4 to the support. On the hand 3, a cushioning pad 4011 is provided on the side of the adjustment bracket plate 401 near the rattan chair back 5; the support rod device 6 includes a connecting rod 601, a hinge shaft 602 is provided at the upper end of the connecting rod 601, and an elastic support rod 603 is fixedly connected to the lower end of the connecting rod 601. The elastic support rod 603 can be manually adjusted in length to adjust the maximum tilt angle of the rattan chair back 5 in conjunction with the adjustment bracket device 4. The connecting rod 601 is slidably connected to the adjustment bracket plate 401, and the hinge shaft 602 is hinged to the rotating groove 5051.

[0026] The working process of this utility model is as follows: When using this rattan woven chair, the distance of the rearward extension of the adjustment bracket device 4 can be adjusted according to the usage requirements. The longer the rearward extension of the adjustment bracket device 4, the greater the tilt angle of the rattan chair back 5 when the elastic support rod 603 contacts the ground. By adjusting the length of the elastic support rod 603, the maximum tilt angle of the rattan chair back 5 can be adjusted to ensure comfort. The adjustment bracket device 4 can also play a guiding and supporting role for the support rod device 6, improve the strength of the support rod device 6, and ensure the smooth movement of the support rod device 6.

[0027] Use the positioning knob 303 to fix the adjusting bracket device 4 onto the handrail 3 (e.g.) Figure 6 (Adjusting the position of the bracket device 4), under the action of the buffer spring 506, the slider 505 is at its highest position, and the support rod device 6 is away from the ground. At this time, when people sit on the rattan chair, the rattan chair back 5 tilts downward under pressure. Under the action of the slider 505 and the adjusting bracket plate 401, the support rod device 6 moves downward synchronously, and the elastic support rod 603 finally contacts the ground to provide support, giving elastic support to the rattan chair back 5 (e.g., Figure 2 As shown), at this time, the slider 505 moves downward to compress the buffer spring 506. The buffer spring 506, in turn, provides elastic support to the rattan chair back 5. Together with the elastic support force of the elastic support rod 603, it provides comfortable elastic support while improving the overall stress of the rattan chair, effectively avoiding uneven stress on the rattan chair and enhancing the rattan chair's bending resistance.

[0028] During use, the support rod device 6 will not extend beyond the range of the rattan chair back 5, thus avoiding increasing the overall size of the device and ensuring a compact structure. The adjustment bracket device 4 will then be reset (e.g., Figure 1When the support rod device 6 is simultaneously moved away from the ground and stored, the buffer pad 4011 on the adjustable bracket plate 401 contacts the rattan chair back 5. The adjustable bracket plate 401 supports and limits the rattan chair back 5. Although the support rod device 6 does not play a supporting role, the buffer pad 4011 and the buffer spring 506 can still provide elastic support, and the rattan chair back 5 can swing at a small tilt angle.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

Claims

1. A rattan woven chair with strong bending resistance, comprising a chair frame body, wherein a rattan woven seat cushion is fixedly connected to the chair frame body, characterized in that, The chair frame body is fixedly connected to armrests on both sides of the rattan seat cushion. An adjustment bracket device is slidably connected between the rear ends of the two armrests. The rear end of the rattan seat cushion is provided with a rotating frame, on which a rattan chair back is rotatably connected. The rattan chair back is located between the armrests and the adjustment bracket device. A sliding slider is provided on the side of the rattan chair back. A vertically downward support rod device is hinged to the slider. The support rod device is slidably connected to the adjustment bracket device.

2. The rattan woven chair with strong bending resistance according to claim 1, characterized in that, The armrest is horizontally positioned and higher than the rattan seat cushion. The rear end of the armrest has a horizontal mounting groove with an outward opening. A positioning knob is threaded onto the armrest, with its lower end protruding into the mounting groove. A limiting surface is provided on the inner side of the armrest, and the limiting surface is slidably connected to the two sides of the rattan chair back.

3. The rattan woven chair with strong bending resistance according to claim 2, characterized in that, The left and right ends of the back side of the rattan chair are fixedly connected to symmetrically arranged reinforcing plates. The lower ends of the reinforcing plates are fixedly connected to a fixed shaft, which is rotatably connected to a rotating frame. The reinforcing plates have sliding grooves, and guide rods are fixedly connected in the sliding grooves. The guide rods are slidably connected to the sliders. A buffer spring is sleeved on the guide rods, and the buffer springs are located under the sliders. The sliders have rotating grooves.

4. The rattan woven chair with strong bending resistance according to claim 3, characterized in that, The adjustable support device includes an adjustable support plate, with mounting plates fixedly connected vertically to both ends of the adjustable support plate. The mounting plates are slidably connected to the mounting grooves. A positioning groove is opened on the upper surface of the mounting plate, and locking teeth are provided in the positioning groove. A cushioning pad is provided on the side of the adjustable support plate near the back of the rattan chair.

5. The rattan woven chair with strong bending resistance according to claim 4, characterized in that, The support rod device includes a connecting rod, with a hinge shaft at the upper end of the connecting rod and an elastic support rod fixedly connected to the lower end of the connecting rod. The connecting rod is slidably connected to the adjusting bracket plate, and the hinge shaft is hinged to the rotating groove.

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