Noon break chair

Abstract

The utility model relates to the technical field of furniture, in particular to a noon break chair. The noon break chair comprises a seat plate; the backrest is arranged on the rear side of the seat plate and is hinged to the seat plate; the two L-shaped supporting beams are divided into first beam sections and second beam sections, the seat plate is arranged above the two first beam sections in a sliding mode, and the second beam sections are located at the rear ends of the first beam sections and extend upwards; a cross rod is arranged at the upper ends of the two second beam sections; the cross rod is used for connecting and fixing the two L-shaped supporting beams; the cross rod is higher than the seat plate, and the backrest is connected with the cross rod in a sliding manner. The L-shaped supporting beams are arranged, a cross beam is omitted, the cross rod is arranged above the seat plate and fixedly connected with the two L-shaped supporting beams, a hand clamping gap between the seat plate and the cross beam is effectively eliminated, and it is guaranteed that the hands of a user cannot enter a dangerous area when the seat and the deck chair are switched.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a nap chair. Background Technology

[0002] Primary and secondary school students typically nap indoors, using benches as chairs with adjustable backrests. Currently, most nap chairs in primary and secondary schools have a hinged seat and backrest, allowing the seat to slide forward as the backrest tilts backward. Given the significant height differences among students of the same age, the chairs are height-adjustable, often using telescopic support legs. However, due to the linkage between the seat and backrest and the telescopic support legs, the reinforcing beam between the two support legs cannot be placed on top of the telescopic support (affecting height adjustment, increasing assembly difficulty, and potentially causing inconsistencies and wobbling), nor can it be placed at the top of the telescopic support (making the sliding mechanism under the seat difficult to install). Therefore, in actual products, the beam is usually placed at the rear of the support component under the seat, as described in Chinese Utility Model Patent No. 202321090207.3. The nap chair frame has a beam connecting the two side support frames at the connection between the backrest and seat. In the seated position, the beam is covered by the backrest and seat and is not visible. However, when the nap chair is adjusted to reclining mode, the backrest and seat move forward together, creating a gap between the crossbeam and the seat. When adjusting or restoring the backrest, the user's hand can easily enter this gap, posing a risk of pinching the hand and affecting the safety of the nap chair. This is especially true considering that the users are mostly primary and secondary school students with lower safety awareness; the safety hazards of using this type of nap chair cannot be ignored.

[0003] Therefore, existing technologies have defects and shortcomings, and need further improvement and development. Utility Model Content

[0004] The main purpose of this utility model is to propose a lunch break chair that aims to solve the safety hazard of easy hand pinching when adjusting existing lunch break chairs.

[0005] To achieve the above objectives, this utility model proposes a nap chair, which includes:

[0006] Seat plate;

[0007] A backrest, which is disposed on the rear side of the seat plate and hinged to the seat plate;

[0008] Two L-shaped support beams, each L-shaped support beam being divided into a first beam segment and a second beam segment, with a seat plate slidably disposed above the two first beam segments, and the second beam segment located at the rear end of the first beam segment and extending upward; a crossbar is provided at the upper end of the two second beam segments; the crossbar connects and fixes the two L-shaped support beams;

[0009] The crossbar is higher than the seat plate, and the backrest is slidably connected to the crossbar.

[0010] Preferably, the backrest includes a back panel and a rib beam, the rib beam protruding from the side of the back panel away from the seat plate, and the rib beam being slidably connected to the crossbar.

[0011] Preferably, one or two ribs are provided.

[0012] Preferably, the rib beam has a strip-shaped hole extending along the length direction of the rib beam, and the crossbar passes through the strip-shaped hole;

[0013] When the nap chair is in seat mode, the crossbar is located at one end of the strip hole near the seat plate;

[0014] When the nap chair is in the form of a recliner, the crossbar is located at the end of the strip hole away from the seat plate.

[0015] Preferably, the inner wall of the strip hole is arc-shaped, and the width of the strip hole decreases first and then increases in the width direction of the rib beam.

[0016] Preferably, the width of the strip hole at the end near the base plate and the width of the strip hole at the end away from the base plate are both smaller than the width of the crossbar.

[0017] Preferably, a first gap is provided between the backrest and the crossbar to prevent the backrest and the second beam segment from pinching the fingers when the nap chair returns from the napping mode to the seating mode.

[0018] Preferably, the width of the lower end of the backrest is less than the distance between the two second beam segments, so that when the nap chair is in seat mode, a second gap is formed between the backrest and the second beam segments to prevent the backrest and the second beam segments from pinching fingers when the nap chair returns to seat mode from nap mode.

[0019] Preferably, when the nap chair is in seat mode, a third gap is formed between the seat plate and the second beam segment to prevent the seat plate and the second beam segment from pinching fingers when the nap chair returns to seat mode from nap mode.

[0020] Preferably, the nap chair further includes two chair legs, two support rods, and a crossbeam;

[0021] One end of the support rod is fixedly connected to the first beam segment, and the other end of the support rod is slidably embedded in the chair leg.

[0022] The crossbeam is fixedly connected between the two chair legs.

[0023] Beneficial effects

[0024] This utility model provides a nap chair. The nap chair includes a seat, a backrest, and two L-shaped support beams. Each L-shaped support beam includes a first beam segment and a second beam segment located at the rear end of the first beam segment and extending upwards. A crossbar is provided at the upper end of each of the two second beam segments, and the backrest is slidably connected to the crossbar. By setting up L-shaped support beams and eliminating the crossbar, and by providing a crossbar above the seat to fix the two L-shaped support beams, the gap between the seat and the crossbar is effectively eliminated, ensuring that the user's hands will not enter the danger zone when transitioning between a seat and a reclining position, thus significantly reducing the risk of hand pinching. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a side view of the seat position of the nap chair provided in this application;

[0027] Figure 2 This is a three-dimensional structural diagram of the seat position of the nap chair provided in this application;

[0028] Figure 3 This is a side view of the ribs of the nap chair provided in this application;

[0029] Figure 4 yes Figure 3 Schematic cross-sectional view along the AA direction;

[0030] Figure 5 This is a three-dimensional structural diagram of the frame of the nap chair provided in this application;

[0031] Figure 6 This is a frontal view of the seat position of the nap chair provided in this application;

[0032] Figure 7 This is a partial three-dimensional structural diagram of the nap chair provided in this application.

[0033] Explanation of icon numbers:

[0034] label name label name 10 nap chair 11 Seat 12 Backrest 13 L-shaped support beam 14 First gap 16 support rod 17 Chair legs 18 beam 19 Second gap 20 Third gap 121 Back panel 122 Ribs 123 strip hole 131 First beam segment 132 Second beam segment 133 crossbar

[0035] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0039] This utility model proposes a nap chair 10.

[0040] Please refer to the following: Figures 1 to 2 The first embodiment of this application provides a nap chair 10. The nap chair 10 includes a seat 11, a backrest 12, two L-shaped support beams 13, and a crossbar 133. The L-shaped support beams 13 are divided into a first beam segment 131 and a second beam segment 132. The seat 11 is slidably mounted on the first beam segment 131. This sliding connection provides smooth operation when adjusting the seat 11's angle and ensures the relative position stability between the seat 11 and the support beams. Simultaneously, the L-shaped support beams 13 provide necessary support for the seat 11. The backrest 12 is located behind the seat 11 and is connected to the seat 11 via a hinged structure. The backrest 12 can tilt towards the front of the seat 11 or return to an upright position within a certain angle range, allowing the nap chair 10 to freely switch between a reclining chair mode and a seat mode.

[0041] Existing nap chairs typically employ a seat and backrest linkage design, allowing the seat to slide when the backrest is tilted. Due to this linkage, and the use of telescopic rods for height adjustment of the support legs, the crossbeam cannot usually be positioned above or at the top of the telescopic rods. Therefore, the crossbeam is typically located at the rear end of the support component below the seat, i.e., the rear end of the first beam segment 131 in this application. However, when the nap chair is adjusted from seat mode to reclining mode, the backrest and seat tilt backward and move forward simultaneously. At this time, a gap is formed between the crossbeam and the backrest / seat. During the process of returning the nap chair to seat mode, the user's hand may inadvertently enter this gap, especially primary and secondary school students who, due to their lower safety awareness, are more likely to unintentionally place their hands in this position, thus posing a risk of pinching their fingers.

[0042] To enhance safety, the support beam of the nap chair 10 in this application is an L-shaped support beam 13 composed of a first beam segment 131 and a second beam segment 132. The second beam segment 132 is located at the rear end of the first beam segment 131 and extends upward. A crossbar 133 is provided between the two second beam segments 132, and the crossbar 133 is located at the upper end of the two second beam segments 132. The upper end of the second beam segment 132 refers to the side of the second beam segment 132 that is away from the first beam segment 131. The crossbar 133 can be a certain distance from the end of the second beam segment 132 that is away from the first beam segment 131. The crossbar 133 does not necessarily have to be located at the end of the second beam segment 132, as long as the height of the crossbar 133 is higher than the seat plate 11 and there is no gap between the seat plate 11 and the crossbar 133 that would pinch the hand. It can be understood that by setting the L-shaped support beam 13 and placing the crossbar 133 on the second beam segment 132, the crossbar 133 is located above the position where the crossbar is set in the prior art. Since there is no crossbeam at the rear end of the first beam segment 131, there is no gap area between the crossbeam, backrest 12, and seat 11 during the process of the nap chair 10 changing from seat mode to recliner mode or back to seat mode, which can avoid the risk of hands getting caught in the gap area.

[0043] In summary, this nap chair 10 effectively eliminates the risk of fingers being pinched and improves overall safety. Especially considering that the target users of this nap chair 10 are primary and secondary school students, this design significantly reduces the safety hazards present in existing nap chairs used by primary and secondary school students, thereby improving comfort and safety during use.

[0044] A first gap 14 is designed between the backrest 12 and the crossbar 133 to prevent fingers from being pinched by the backrest 12 and the second beam segment 132 when the nap chair 10 returns to the seat position from the nap position. When the backrest 12 tilts towards the front of the seat 11 or returns to an upright position, there is always a sufficiently large gap between the backrest 12 and the crossbar 133. This gap ensures that even if a hand enters the gap when adjusting the nap chair, it will not be pinched, thus significantly reducing the risk of students' hands being pinched.

[0045] It is particularly noteworthy that the crossbar 133 not only effectively reduces the risk of hand pinching by setting a first gap 14 between it and the backrest 12, but also plays a supporting and fixing role in the structure of the nap chair 10 together with the L-shaped support beam 13. The crossbar 133 and the second beam segment 132 jointly bear the force during the adjustment of the backrest 12 and the force during normal use, avoiding the problem of instability of the backrest 12 or wobbling of the nap chair 10 due to the imbalance of the support structure.

[0046] Please see Figure 2 The backrest 12 includes a back panel 121 and ribs 122, with the ribs 122 protruding from the back panel 121 on the side opposite to the seat panel 11. Specifically, the back panel 121 is the main component of the backrest 12, serving to support the user's back. Preferably, one or two ribs 122 are provided. The ribs 122 are designed to enhance the stability and support of the back panel 121. The ribs 122 are located on the back of the backrest 12 (i.e., the side opposite to the seat panel 11), making the backrest 12 more stable under stress and less prone to deformation. The ribs 122 are installed on the side of the back panel 121 opposite to the seat panel 11 in a protruding manner. The ribs 122 provide additional support to the backrest 12 during the adjustment of the student chair, while ensuring the stability of the backrest 12 during the adjustment process.

[0047] The rib beam 122 is slidably connected to the crossbar 133. Specifically, since the rib beam 122 protrudes from the back panel 121 and the crossbar 133 is slidably connected to the rib beam 122, this effectively creates a first gap 14 between the back panel 121 and the crossbar 133. When a hand is inserted into the first gap 14, there is no risk of pinching, significantly improving the safety of the nap chair 10.

[0048] A sliding device is provided between the rib beam 122 and the crossbar 133, allowing the rib beam 122 to slide smoothly under the guidance of the crossbar 133 during adjustment. This sliding connection ensures the stability of the backrest 12 during adjustment, avoiding uneven adjustment due to friction or jamming. The sliding connection can be achieved through a slide groove, slide rail, or other sliding device. The rib beam 122 can be provided with a sliding groove or slide rail that mates with the crossbar 133, while the crossbar 133 can be provided with corresponding sliding components to allow the rib beam 122 to slide smoothly during adjustment. This design makes the adjustment of the backrest 12 more flexible and allows for smooth adjustment without affecting the stability of the nap chair 10.

[0049] Please refer to the following: Figure 2 and Figure 3 Preferably, this application employs a simple sliding connection method where a strip-shaped hole 123 is formed on the rib beam 122, and the crossbar 133 passes through the strip-shaped hole 123. The strip-shaped hole 123 extends along the length of the rib beam 122; specifically, the design of the strip-shaped hole 123 is to allow the backrest 12 to make a certain displacement relative to the crossbar 133 during adjustment, thereby achieving a transition between a seat form and a reclining chair form. The length and width of the strip-shaped hole 123 ensure smooth and stable sliding and adjustment of the backrest 12 relative to the crossbar 133, and ensure correct positioning in different states. The crossbar 133 is fixed to the second beam segment 132 and passes through the strip-shaped hole 123. This not only allows the backrest 12 to slide freely as needed during adjustment, but also ensures a stable connection between the crossbar 133 and the seat plate 11, enabling the backrest 12 to move smoothly during adjustment while avoiding safety hazards caused by unstable connections.

[0050] When the nap chair 10 is in seat mode, the crossbar 133 is located at the end of the strip hole 123 near the seat plate 11; when the nap chair 10 is in recliner mode, the crossbar 133 is located at the end of the strip hole 123 away from the seat plate 11. The strip hole 123 provides displacement space for the backrest 12 relative to the crossbar 133. Through reasonable matching of hole length and width, the smoothness and stability of the backrest 12 during the transition between seat and recliner modes can be ensured.

[0051] Specifically, when the nap chair 10 transforms from a seat form to a recliner form, the angle between the backrest 12 and the seat 11 increases, the backrest 12 moves forward towards the seat 11, the center of gravity of the backrest 12 shifts downward, and the end of the strip hole 123 away from the seat 11 contacts the crossbar 133. The crossbar 133 limits the rib beam 122, restricting the angle between the backrest 12 and the seat 11 from increasing further, thus completing the transformation to the recliner form. When the nap chair 10 transforms from a recliner form to a seat form, the angle between the backrest 12 and the seat 11 decreases, the backrest 12 moves backward towards the seat 11, the center of gravity of the backrest 12 shifts upward, and the end of the strip hole 123 near the seat 11 contacts the crossbar 133, restricting the angle between the backrest 12 and the seat 11 from decreasing further. The backrest 12 remains upright or slightly tilted, ensuring that the backrest 12 is in a comfortable and stable seat form.

[0052] Please see Figure 3 The width of the end of the slot 123 near the seat plate 11 and the width of the end of the slot 123 away from the seat plate 11 are both smaller than the width of the middle area of ​​the slot 123. This is to ensure that during the adjustment of the backrest 12, the width of the middle part of the slot 123 is greater than the diameter of the crossbar 133, thereby reducing the contact area between the middle part of the slot 123 and the crossbar 133, reducing friction, and making the deformation smoother. When the crossbar 133 slides to the middle of the slot 123, the width of the middle part of the slot 123 is sufficient to accommodate the crossbar 133, ensuring its smooth passage; and after deformation, the width of the end of the slot 123 gradually decreases to be smaller than the width of the crossbar 133, so that the crossbar 133 can be gradually and stably clamped, thereby fixing the position of the deformed backrest 12, preventing the crossbar 133 from directly impacting the end of the slot 123 and causing excessive noise, and also making the nap chair 10 less prone to wobbling after deformation, thus making it more stable. It should be noted that those skilled in the art will understand that the width of both ends of the strip hole 123 should be slightly smaller than the width of the crossbar 133, so as to avoid problems such as jamming or difficulty in disengaging.

[0053] Please see Figure 4 The inner wall of the strip hole 123 is set to be arc-shaped, so that the width of the strip hole 123 first decreases and then increases in the width direction of the rib beam 122, thereby effectively reducing the contact area between the crossbar 133 and the inner wall of the strip hole 123, thereby reducing the generation of friction, ensuring that the adjustment process of the backrest 12 is smoother, and making the lunch break chair 10 more smooth in the deformation process.

[0054] Please refer to the following: Figures 1 to 2The area where the backrest 12 and the crossbar 133 are slidably connected is curved towards the front of the seat plate 11. This curvature creates a reasonable initial gap 14 to ensure safety during use, while also making the backrest 12 a lumbar support structure, which is more ergonomic. It also provides sufficient space for the rib beam 122 to accommodate the slotted holes 123, ensuring that the structural strength of the rib beam 123 is not reduced due to the slotted holes 122.

[0055] Please refer to the following: Figure 6 and Figure 7 The width of the lower end of the backrest 12 is less than the distance between the two second beam segments 132, so that when the nap chair 10 is in seat mode, a second gap 19 is formed between the backrest 12 and the second beam segments 132. This prevents the lower end of the backrest 12 from contacting the second beam segments 132 when the nap chair 10 is in seat mode, thus preventing fingers from being pinched by the backrest 12 and the second beam segments 132 when the nap chair 10 returns from nap mode to seat mode. Due to the second gap 19 between the backrest 12 and the second beam segments 132, there is more space for movement between the backrest 12 and the second beam segments 132 when the nap chair 10 returns from reclining mode to seat mode, making it less likely to pinch fingers and reducing the risk of finger pinching.

[0056] Please see Figure 7 A third gap 20 is formed between the seat plate 11 and the second beam segment 132 to prevent fingers from being pinched when the nap chair 10 returns from its napping mode to its seated mode. When the nap chair 10 changes from a reclining chair mode to a seated mode, the gap between the seat plate 11 and the second beam segment 132 gradually decreases, potentially creating a risk of fingers being pinched. The existence of the third gap 20 ensures that the rear end of the seat plate 11 does not contact the second beam segment 132 when the nap chair 10 is in seated mode, providing safety and preventing finger pinching accidents. Simultaneously, the third gap 20 also reduces direct contact between the seat plate 11 and the second beam segment 132, thereby avoiding potential friction and wear during adjustment.

[0057] Please see Figure 5 To enhance stability during use, the nap chair 10 is equipped with a crossbeam 18. Specifically, the nap chair 10 also includes two support rods 16, two chair legs 17, and the crossbeam 18. One end of each support rod 16 is fixedly connected to the side of the first beam segment 131 facing away from the seat plate 11, while the other end of the support rod 16 is slidably embedded in the chair legs 17. The support rods 16 and chair legs 17 are designed as a telescopic structure that can be adjusted in length, allowing the nap chair 10 to adapt to different height requirements and maintain comfort and stability when adjusting between seat and reclining positions.

[0058] The two chair legs 17 are connected to the first beam segment 131 via support rods 16, forming a stable support structure. The lower part of the chair legs 17 contacts the ground, providing support for the overall frame of the nap chair 10. A crossbeam 18 is positioned between the two chair legs 17 and is fixedly connected to them. The crossbeam 18 connects the left and right chair legs 17, enhancing the lateral stability of the nap chair 10 frame.

[0059] The support rod 16, chair legs 17, crossbeam 18, and L-shaped support beam 13 work together to form a robust frame structure. The sliding adjustment design of the support rod 16 and chair legs allows for height adjustment of the nap chair 10. The chair legs 17 provide vertical support, while the crossbeam 18 ensures the lateral stability of the entire structure. The L-shaped support beam 13 supports the seat plate 11. This design ensures that the nap chair 10 remains stable and secure when transitioning between seat and reclining positions, meeting the user's comfort needs.

[0060] In summary, this utility model provides a nap chair, comprising: a seat; a backrest, the backrest being disposed on the rear side of the seat and hinged to the seat; two L-shaped support beams, each L-shaped support beam being divided into a first beam segment and a second beam segment; the seat is slidably disposed above the two first beam segments; the second beam segment is located at the rear end of the first beam segment and extends upward; a crossbar is disposed at the upper end of the two second beam segments; the crossbar connects and fixes the two L-shaped support beams; the crossbar is higher than the seat, and the backrest is slidably connected to the crossbar. By setting L-shaped support beams and eliminating the crossbar, and by setting a crossbar above the seat to fix and connect the two L-shaped support beams, the hand-pinching gap between the seat and the crossbar is effectively eliminated, ensuring that the user's hands will not enter the danger zone when switching between a seat and a reclining chair mode, thereby significantly reducing the risk of hand pinching.

[0061] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A nap chair, characterized in that, include, Seat plate; A backrest, which is disposed on the rear side of the seat plate and hinged to the seat plate; Two L-shaped support beams, each L-shaped support beam being divided into a first beam segment and a second beam segment, with a seat plate slidably disposed above the two first beam segments, and the second beam segment located at the rear end of the first beam segment and extending upward; a crossbar is provided at the upper end of the two second beam segments; the crossbar connects and fixes the two L-shaped support beams; The crossbar is higher than the seat plate, and the backrest is slidably connected to the crossbar.

2. The nap chair as described in claim 1, characterized in that, The backrest includes a back panel and a rib beam. The rib beam protrudes from the side of the back panel away from the seat plate and is slidably connected to the crossbar.

3. The nap chair as described in claim 2, characterized in that, One or two ribs are provided.

4. The nap chair as described in claim 2, characterized in that, The rib beam has a strip-shaped hole extending along the length of the rib beam, and the crossbar passes through the strip-shaped hole; When the nap chair is in seat mode, the crossbar is located at one end of the strip hole near the seat plate; When the nap chair is in the form of a recliner, the crossbar is located at the end of the strip hole away from the seat plate.

5. The nap chair as described in claim 4, characterized in that, The inner wall of the strip hole is arc-shaped, and the width of the strip hole decreases first and then increases in the width direction of the rib beam.

6. The nap chair as described in claim 4, characterized in that, The width of the strip hole at the end closest to the base plate and the width of the strip hole at the end furthest from the base plate are both less than the width of the crossbar.

7. The nap chair as described in claim 1, characterized in that, A first gap is provided between the backrest and the crossbar to prevent the backrest and the second beam segment from pinching the fingers when the nap chair returns from the napping state to the seating state.

8. The nap chair as described in claim 1, characterized in that, The width of the lower end of the backrest is less than the distance between the two second beam segments, so that when the nap chair is in seat mode, a second gap is formed between the backrest and the second beam segments to prevent the fingers from being pinched by the backrest and the second beam segments when the nap chair returns to seat mode from nap mode.

9. The nap chair as described in claim 1, characterized in that, When the nap chair is in seat mode, a third gap is formed between the seat plate and the second beam segment to prevent fingers from being pinched by the seat plate and the second beam segment when the nap chair returns to seat mode from nap mode.

10. The nap chair as described in claim 1, characterized in that, The lunch break chair also includes two chair legs, two support rods, and a crossbeam; One end of the support rod is fixedly connected to the first beam segment, and the other end of the support rod is slidably embedded in the chair leg. The crossbeam is fixedly connected between the two chair legs.

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