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 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 first cross rod is arranged at the upper ends of the two second beam sections, and a second cross rod is arranged at the front ends of the two first beam sections; the first cross rod and the second cross rod are respectively connected with and fix the two L-shaped supporting beams; the first cross rod is higher than the seat plate, the backrest is in sliding connection with the first cross rod, the L-shaped supporting beam is arranged, a cross beam is omitted, and a hand clamping gap between the seat plate and the cross beam is effectively eliminated; the first cross rod and the second cross rod are arranged at the two ends of the L-shaped supporting beam to jointly form a stable quadrilateral structure, so that the problem of potential safety hazards of hand clamping is reduced while the structural stability of the noon break chair is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture technical field, especially a kind of lunch break chair. BACKGROUND

[0002] Primary and secondary school students usually have lunch break in classroom, and stool is used as lunch break chair, and the angle of backrest can be adjusted. At present, the seat plate and backrest of lunch break chair commonly used in primary and secondary schools are hinged and linked, and the seat plate will slide forward while the backrest is inclined backward. Moreover, according to the actual situation that the height difference of students of the same age is large, the height of lunch break chair is set as a structure that can be adjusted, and the supporting legs are usually set as telescopic rods. Based on the linkage of seat plate and backrest and telescopic rods, the crossbeam for reinforcing between the left and right supporting legs cannot be set on the upper part of telescopic rods (which will affect the adjustment of height and increase the difficulty of assembly, and will easily cause the two supporting legs to be inconsistent and shake), nor can it be set on the top of telescopic rods (which will make it difficult to install the sliding mechanism under the seat plate). Therefore, the actual product usually sets the crossbeam at the rear end of the supporting part under the seat plate, such as the scheme disclosed in the No. 202321090207.3 Chinese utility model patent. The frame of lunch break chair is provided with a crossbeam for connecting the supporting frames on both sides at the connection between backrest and seat plate. In the seat state, the crossbeam is covered by backrest and seat plate and is not visible. However, when the lunch break chair is adjusted to a reclining chair mode, the backrest and seat plate will move forward together, resulting in a gap between the crossbeam and the backrest and seat plate. When the backrest is adjusted or restored, the hands of the user are easy to enter the gap area, which has the risk of pinching hands and affects the safety of lunch break chair, especially in the case that the users are primary and secondary school students with low safety awareness, the safety risk of using such lunch break chair cannot be ignored. If the crossbeam is not set at the rear end under the seat plate, the structural stability of the seat will be low, and naughty primary and secondary school students may often shake the seat, causing the seat to loosen and reducing the service life of the seat.

[0003] Therefore, the prior art has defects and deficiencies, and needs to be further improved and developed. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the utility model is to provide a lunch break chair, which aims to solve the problem of reducing the safety risk of pinching hands while ensuring structural stability.

[0005] To achieve the above-mentioned purpose, the utility model provides a lunch break chair, which comprises,

[0006] a seat plate;

[0007] a backrest, which is arranged at the rear side of the seat plate and is hinged with the seat plate;

[0008] Two L-shaped support beams are divided into first beam segments and second beam segments, the seat plate is slidingly arranged above the first beam segments, and the second beam segments are located at the rear ends of the first beam segments and extend upward; the upper ends of the second beam segments are provided with first cross bars, and the front ends of the first beam segments are provided with second cross bars; the first cross bars and the second cross bars are connected and fixed to the two L-shaped support beams respectively;

[0009] The first cross bar is higher than the seat plate, and the backrest is slidingly connected with the first cross bar.

[0010] Preferably, a locking mechanism is arranged on the second cross bar, and the locking mechanism is used for locking the seat plate; the locking mechanism comprises a seat plate limiting piece; the bottom surface of the seat plate is provided with a plurality of ribs, a limiting part is arranged on the plurality of ribs, and the limiting part is matched with the limiting piece.

[0011] Preferably, the limiting part comprises a limiting plate and a limiting groove, the limiting plate is arranged alternately with the plurality of ribs, and the limiting groove is located on the side of the limiting plate facing the limiting piece.

[0012] The limiting piece abuts against the limiting plate.

[0013] A limiting shaft is arranged on the side of the limiting piece facing the seat plate, the limiting shaft is rotatable relative to the limiting piece, and the limiting shaft is matched with the limiting groove.

[0014] Preferably, a first gap is arranged between the backrest and the first cross bar.

[0015] Preferably, the backrest comprises a back plate and a rib beam, the rib beam is protrudingly arranged on the side of the back plate away from the seat plate, and the rib beam is slidingly connected with the first cross bar.

[0016] Preferably, a strip-shaped hole extending along the length direction of the rib beam is arranged on the rib beam, and the first cross bar penetrates through the strip-shaped hole.

[0017] When the noon break chair is in a seat state, the first cross bar is located at one end of the strip-shaped hole close to the seat plate.

[0018] When the noon break chair is in a reclining chair state, the first cross bar is located at one end of the strip-shaped hole away from the seat plate.

[0019] Preferably, the region, where the backrest is slidingly connected with the first cross bar, is bendingly arranged towards the front side of the seat plate to form the first gap, so as to prevent the backrest from pinching fingers when the noon break chair is reset from a noon break state to a seat state.

[0020] Preferably, the width of the lower end of the backrest is less than the distance between the two second beam segments, so that a second gap is formed between the backrest and the second beam segments when the nap chair is in the seat form, to prevent the backrest and the second beam segments from pinching fingers when the nap chair resets from the nap form to the seat form.

[0021] Preferably, a third gap is formed between the seat plate and the second beam segments when the nap chair is in the seat form, to prevent the seat plate and the second beam segments from pinching fingers when the nap chair resets from the nap form to the seat form.

[0022] Preferably, the nap chair further comprises two chair legs, two support rods and a cross beam.

[0023] 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.

[0024] The cross beam is fixedly connected between the two chair legs.

[0025] Advantages

[0026] The technical scheme of the nap chair provided by the utility model discloses a nap chair. The nap chair comprises a seat plate, a backrest and two L-shaped support beams, wherein the L-shaped support beams are provided with a first cross rod and a second cross rod, and the backrest is slidably connected with the first cross rod. By arranging the L-shaped support beams and canceling the cross beam, the hand pinching gap between the seat plate and the cross beam is effectively eliminated. By arranging the first cross rod and the second cross rod at the two ends of the L-shaped support beams, a stable quadrilateral structure is formed, the structure stability of the nap chair is ensured, and the safety hidden trouble of hand pinching is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained from the structures shown in the drawings without creative labor for those skilled in the art.

[0028] Figure 1 It is a side view schematic diagram of the nap chair in the application.

[0029] Figure 2 It is a three-dimensional structure schematic diagram of the frame of the nap chair in the application.

[0030] Figure 3 It is a partial three-dimensional structure schematic diagram of the nap chair in the application.

[0031] Figure 4is a partial exploded schematic view of a lunch chair provided in the present application;

[0032] Figure 5 is another perspective partial exploded schematic view of a lunch chair provided in the present application;

[0033] Figure 6 is a partial enlarged schematic view of a reclining chair state of a lunch chair provided in the present application;

[0034] Figure 7 is a perspective structural schematic view of a seat state of a lunch chair provided in the present application;

[0035] Figure 8 is a front view schematic view of a seat state of a lunch chair provided in the present application;

[0036] Figure 9 is a partial enlarged schematic view of a seat state of a lunch chair provided in the present application.

[0037] BRIEF DESCRIPTION OF DRAWINGS

[0038] Reference Name Reference Name 10 Lunch chair 11 Seat plate 12 Backrest 13 L-shaped support beam 14 First gap 15 Locking mechanism 16 Support rod 17 Chair leg 18 Cross beam 19 Second gap 20 Third gap 111 Rib 112 Limiting part 113 Limiting plate 114 Limiting groove 121 Back plate 122 Rib beam 123 Strip hole 131 First beam segment 132 Second beam segment 133 First cross rod 134 Second cross rod 151 Handle 152 Body 153 Limiting part 154 Through hole 155 Limiting shaft 156 Spring

[0039] The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0041] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0043] The utility model provides a kind of lunch break chair 10.

[0044] Please refer to Figures 1 to 4 In the first embodiment of the present application, a lunch break chair 10 is provided. The lunch break chair 10 includes a seat plate 11, a backrest 12, two L-shaped support beams 13, a first horizontal rod 133 and a first horizontal rod 134. Among them, the L-shaped support beam 13 is divided into a first beam section 131 and a second beam section 132, and the seat plate 11 is arranged on the first beam section 131 by sliding. The sliding connection mode can not only provide smooth operation when adjusting the angle of the seat plate 11, but also ensure the relative position stability of the seat plate 11 and the support beam, and the L-shaped support beam 13 can also provide necessary support for the seat plate 11. The backrest 12 is arranged behind the seat plate 11 and connected with the seat plate 11 by a hinged structure. The backrest 12 can be inclined to the front side of the seat plate 11 within a certain angle range or restored to the upright state, so that the lunch break chair 10 can be randomly converted into a reclining chair form and a seat form.

[0045] The lunch break chair of the prior art usually adopts a design of linkage between the seat plate and the backrest, so that the seat plate will slide when the backrest is inclined. Due to the linkage design of the seat plate and the backrest, and the height adjustment of the support leg by the telescopic rod structure, the cross beam usually cannot be arranged at the upper part or the top of the telescopic rod. Therefore, the cross beam is usually arranged at the rear end of the support part below the seat plate, i.e. the rear end of the first beam section 131 in the present application. However, when the lunch break chair is adjusted from the seat mode to the reclining chair mode, the backrest and the seat plate are inclined backward and simultaneously moved forward. At this time, a gap area is formed between the cross beam and the backrest and the seat plate. In the process of restoring the lunch break chair to the seat mode, the user's hand may accidentally enter the gap area, especially for primary and middle school students, due to the low safety awareness, it is more likely to unintentionally put the hand into this position, thereby causing the risk of hand clamping. Although the cross beam arrangement in the prior art has the risk of hand clamping, directly removing the cross beam will affect the stability of the lunch break.

[0046] In order to reduce the safety hazard of the hand clamping under the premise of ensuring the structural stability of the lunch break chair 10, the support beam of the lunch break chair 10 in the application is an L-shaped support beam 13 composed of a first beam segment 131 and a second beam segment 132, and the second beam segment 132 is located at the rear end of the first beam segment 131 and extends upward. A first cross bar 133 is arranged between the two second beam segments 132, and a second cross bar 134 is arranged at the front end of the first beam segment 131. The upper end of the second beam segment 132 refers to the side of the second beam segment 132 away from the first beam segment 131; the first cross bar 133 can be a certain distance away from the end of the second beam segment 132 away from the first beam segment 131, and the first cross bar 133 does not have to be arranged at the end of the second beam segment 132, as long as the height of the first cross bar 133 is higher than the seat plate 11, and there is no gap between the seat plate 11 and the first cross bar 133 that can form a hand clamping. The front end of the first beam segment 131 refers to the side of the first beam segment 131 away from the second beam segment 132; the second cross bar 134 can be a certain distance away from the end of the first beam segment 131 away from the second beam segment 132, as long as the position of the second cross bar 134 is between the support rod 16 and the end of the first beam segment 131 away from the second beam segment 132 in the horizontal direction.

[0047] It can be understood that the first cross bar 133 is located above the position of the cross beam in the prior art. Since there is no cross beam arranged at the rear end of the first beam segment 131, there is no gap area formed between the cross beam and the backrest 12 and the seat plate 11 during the process of converting the lunch break chair 10 from the seat mode to the reclining chair mode or restoring to the seat mode, so that the risk of hand clamping caused by the hand entering this area can be avoided. At the same time, the second cross bar 134 is arranged at the front end of the first beam segment 131, so that the second cross bar 134, the two L-shaped cross beams 13 and the first cross bar 133 together form a stable quadrilateral structure. The second cross bar 134, the two L-shaped cross beams 13 and the first cross bar 133 cooperate with each other to play a supporting and fixing role in the structure of the lunch break chair 10, and the problem of unstable backrest 12 or shaking of the lunch break chair 10 caused by uneven support structure is avoided.

[0048] In summary, the lunch break chair 10 effectively eliminates the risk of hand clamping while ensuring structural stability, thereby improving the overall safety.

[0049] For reference, Figure 1 and 3 , the second cross bar 134 is located below the seat plate 11, and the locking mechanism 15 is arranged on the second cross bar 134. The locking mechanism 15 is used to control the deformation of the lunch break chair 10. The locking mechanism 15 can control the relative positions of the seat plate 11, the backrest 12 and the support structure and other components, thereby realizing the conversion and adjustment of the shape of the lunch break chair 10. The locking mechanism 15 enables the user of the lunch break chair 10 to easily and quickly adjust the shape of the lunch break chair 10, thereby meeting different use requirements.

[0050] Please refer to Figure 3 , the locking mechanism 15 includes a limiting piece 153, a body 152 and a handle 151 connected in sequence from the rear side of the seat plate 11 to the front side of the seat plate 11; the body 152 is provided with a through hole 154, and the body is connected with the second cross rod 134 through the through hole 154. Specifically, the limiting piece 153 is used to limit the deformation of the nap chair 10, so as to ensure that the nap chair 10 can maintain the seat shape; the body 152 is the main part of the locking mechanism 15, and the relative movement between the handle 151 and the limiting piece 153 is coordinated through the connection with the second cross rod 134; the handle 151 is used for the user to manually operate the locking mechanism 15, so that the shape adjustment of the nap chair 10 is more convenient.

[0051] When the user converts the nap chair 10 from the seat shape to the reclining chair shape, the user can hold or press the handle 151 with hands, and rotate the handle 151 towards the seat plate 11, at this time, the body 152 rotates relative to the second cross rod 134, and the body 152 drives the limiting piece 153 to rotate away from the seat plate 11, so that the limiting of the seat plate 11 is released, at this time, the seat plate 11 is no longer limited, and the relative angle between the seat plate 11 and the backrest 12 can change.

[0052] The bottom surface of the seat plate 11 is provided with a plurality of ribs 111, and a limiting part 112 is formed in the plurality of ribs 111. The rib 111 itself is a support member for enhancing the structure of the bottom of the seat plate 11, and the limiting part 112 is directly formed on the rib 111, so that the limiting part 112 is supported by the rib 111 and has high deformation resistance.

[0053] The limiting part 112 matches the limiting piece 153 and plays a limiting role. The rib 111 provides stronger support force for the limiting part 112, and the limiting part 112 on the rib 111 cooperates with the limiting piece 153 to form a stable limiting structure.

[0054] Please refer to Figure 3 and Figure 4 , the limiting part 112 includes a limiting plate 113, and the limiting plate 113 is arranged in an interlaced manner with the plurality of ribs 111; specifically, the limiting plate 113 is not parallel or overlapped with the rib 111, but arranged between the ribs 111 in an interlaced manner; preferably, the limiting plate 113 is arranged perpendicularly to the rib 111. This interlaced arrangement forms a stable support network structure under the seat plate 11, and the rib 111 provides additional support for the limiting plate 113, thereby further improving the load-bearing capacity and durability of the limiting plate 113.

[0055] The limiting piece 153 abuts against the limiting plate 113. During the adjustment of the locking mechanism 15, the limiting piece 153 can abut against the limiting plate 113 when the seat returns to the seat shape, limiting the change of the relative angle between the seat plate 11 and the backrest 12. Through the abutting relationship between the limiting piece 153 and the limiting plate 113, the user can stably keep the nap chair 10 in the seat shape.

[0056] Please refer to Figure 5 and Figure 6 The limiting piece 153 is provided with a limiting shaft 155 on the side facing the seat plate 11, and the limiting shaft 155 can rotate relative to the limiting piece 153; the limiting shaft 155 makes it easier for the limiting piece 153 to disengage from the limiting part 112 when the nap chair 10 is unlocked in the release shape. The limiting part 112 includes a limiting groove 114 composed of grooves formed on the plurality of ribs 111, and the limiting groove 114 is located on the side of the limiting plate 113 facing the locking mechanism 15. The limiting shaft 155 matches the limiting groove 114. When the locking mechanism 15 adjusts the angle between the seat plate 11 and the backrest 12, the limiting shaft 155 falls out of the limiting groove 114 or slides into the limiting groove 114.

[0057] Please refer to Figure 5 The locking mechanism 15 further includes a spring 156, which is sleeved on the second cross rod 134, one end of the spring 156 is fixedly connected with the second cross rod 134, and the other end of the spring 156 abuts against the body 152. This structure makes the spring 156 always in a certain compressed state, and has the function of providing a return force under certain conditions.

[0058] Please refer to Figure 7 A first gap 14 is designed between the backrest 12 and the first cross rod 133 to prevent the backrest 12 from pinching fingers when the nap chair 10 returns from the nap shape to the seat shape. When the backrest 12 is inclined to the front side of the seat plate 11 or returns to the upright state, there is always a large enough gap between the backrest 12 and the first cross rod 133. This gap can prevent hands from being pinched even if hands enter it when the nap chair is adjusted, thereby significantly reducing the risk of students' hands being pinched.

[0059] Please refer to Figure 7The backrest 12 comprises a back plate 121 and a rib beam 122, the rib beam 122 is protrudingly arranged on the side of the back plate 121 away from the seat plate 11. Specifically, the back plate 121 is the main part of the backrest 12, which plays a role in supporting the back of the user. The rib beam 122 is designed to enhance the stability and supporting force of the back plate 121, and the rib beam 122 is located on the back of the backrest 12 (i.e. the side away from the seat plate 11), which makes the backrest 12 more stable when stressed and less likely to deform. The rib beam 122 is installed on the side of the back plate 121 away from the seat plate 11 by protruding arrangement. The rib beam 122 can provide additional support for the backrest 12 during adjustment of the student chair, while ensuring the stability of the backrest 12 during adjustment.

[0060] The rib beam 122 is in sliding connection with the first horizontal rod 133. Specifically, since the rib beam 122 is protrudingly arranged on the back plate 121, and the first horizontal rod 133 is in sliding connection with the rib beam 122, this effectively creates a first gap 14 between the back plate 121 and the first horizontal rod 133. When the hand is inserted into the first gap 14, there is no risk of pinching the hand, significantly improving the safety of the lunch chair 10.

[0061] A sliding device is arranged between the rib beam 122 and the first horizontal rod 133, so that the rib beam 122 can smoothly slide under the guidance of the first horizontal rod 133 during adjustment of the backrest 12. Through this sliding connection, the backrest 12 can remain stable during adjustment, avoiding the phenomenon of unsmooth adjustment due to friction or jamming. The sliding connection can be realized by a sliding groove, a sliding rail or other sliding devices. The rib beam 122 can be provided with a sliding groove or a sliding rail cooperating with the first horizontal rod 133, and the first horizontal rod 133 can be provided with a corresponding sliding part, so that the rib beam 122 can smoothly slide during adjustment. This design makes the adjustment of the backrest 12 more flexible and can be smoothly adjusted without affecting the stability of the lunch chair 10.

[0062] Please continue to refer to Figure 7, preferably, the strip-shaped hole 123 is arranged on the rib beam 122, and the first cross bar 133 is connected to the rib beam 122 by sliding through the strip-shaped hole 123. The strip-shaped hole 123 is arranged on the rib beam 122 and extends along the length direction of the rib beam 122. Specifically, the strip-shaped hole 123 is designed to allow the backrest 12 to move relative to the first cross bar 133 during adjustment, so as to realize the transition between the seat shape and the reclining chair shape. The length and width of the strip-shaped hole 123 can ensure the smooth sliding and adjustment of the backrest 12 relative to the first cross bar 133, and ensure the correct positioning in different states. The first cross bar 133 is fixed to the second beam segment 132 and passes through the strip-shaped hole 123, which not only allows the backrest 12 to slide freely during adjustment as needed, but also ensures that the first cross bar 133 remains stably connected between the backrest 12 and the seat plate 11, so that the backrest 12 can move smoothly during adjustment, and at the same time, the safety hazard caused by unstable connection is avoided.

[0063] When the noon break chair 10 is in the seat shape, the first cross bar 133 is located at one end of the strip-shaped hole 123 close to the seat plate 11; when the noon break chair 10 is in the reclining chair shape, the first cross bar 133 is located at one end of the strip-shaped hole 123 away from the seat plate 11. The strip-shaped hole 123 provides displacement space for the backrest 12 relative to the first cross bar 133, and through reasonable cooperation of the length and width of the hole, the smoothness and stability of the backrest 12 during the transition between the seat shape and the reclining chair shape can be ensured.

[0064] Specifically, when the noon break chair 10 is converted from the seat shape to the reclining chair shape, the angle between the backrest 12 and the seat plate 11 increases, the backrest 12 moves forward relative to the seat plate 11, the center of gravity of the backrest 12 moves downward, one end of the strip-shaped hole 123 away from the seat plate 11 contacts the first cross bar 133, the first cross bar 133 limits the rib beam 122 to limit the angle between the backrest 12 and the seat plate 11 from continuing to increase, and the conversion of the reclining chair shape is completed. When the noon break chair 10 is converted from the reclining chair shape to the seat shape, the angle between the backrest 12 and the seat plate 11 decreases, the backrest 12 moves backward relative to the seat plate 11, the center of gravity of the backrest 12 moves upward, one end of the strip-shaped hole 123 close to the seat plate 11 contacts the first cross bar 133, the first cross bar 133 limits the angle between the backrest 12 and the seat plate 11 from continuing to decrease, and the backrest 12 remains upright or slightly inclined, so as to ensure that the backrest 12 is in a comfortable and stable seat shape.

[0065] Please refer to Figure 1 and Figure 7The region where the backrest 12 is slidingly connected with the first crossbar 133 is curved towards the front side of the seat plate 11. The curved design forms a reasonable first gap 14 to ensure safety during use, and at the same time, the backrest 12 forms a waist support structure, which is more ergonomic, and the rib beam 122 has enough space to set the strip hole 123, so that the rib beam 123 will not be weakened in structure due to the strip hole 122.

[0066] Please refer to Figure 8 and Figure 9 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 break chair 10 is in the seat shape, a second gap 19 is formed between the backrest 12 and the second beam segment 132, so that the lower end of the backrest 12 does not contact the second beam segment 132 when the break chair 10 is in the seat shape, to prevent the backrest 12 and the second beam segment 132 from pinching fingers when the break chair 10 is reset from the break shape to the seat shape.

[0067] Please refer to Figure 9 A third gap 20 is formed between the seat plate 11 and the second beam segment 132 to prevent the seat plate 11 and the second beam segment 132 from pinching fingers when the break chair 10 is reset from the break shape to the seat shape. When the break chair 10 is converted from the reclining chair shape to the seat shape, the gap between the seat plate 11 and the second beam segment 132 gradually decreases, which may cause the risk of pinching hands. The third gap 20 of the present embodiment can effectively solve this problem. The existence of the third gap 20 makes the rear end of the seat plate 11 not contact the second beam segment 132 when the break chair 10 is in the seat shape, providing safety protection and avoiding the occurrence of pinching accidents. At the same time, the existence of the third gap 20 also reduces the direct contact between the seat plate 11 and the second beam segment 132, thereby avoiding the friction and wear that may occur during adjustment.

[0068] Please refer to Figure 1 In order to make the break chair 10 more stable during use, the break chair 10 is provided with a cross beam 18. Specifically, the break chair 10 further comprises two support rods 16, two chair legs 17 and a cross beam 18. One end of the support rod 16 is fixedly connected to the side of the first beam segment 131 away from the seat plate 11, and the other end of the support rod 16 is slidingly connected and embedded in the chair leg 17. The support rod 16 and the chair leg 17 are designed as an extension structure capable of adjusting the length, so that the break chair 10 can adapt to different height requirements, and the break chair 10 remains comfortable and stable when adjusting between the seat and the reclining chair shape.

[0069] Two chair legs 17 are connected with the first beam section 131 through the support rods 16, forming a stable support structure. The lower part of the chair leg 17 is in contact with the ground, providing support force for the overall frame of the lunch break chair 10. The cross beam 18 is arranged between the two chair legs 17 and is fixedly connected with the chair legs 17. The cross beam 18 connects the left and right chair legs 17, enhancing the lateral stability of the frame of the lunch break chair 10.

[0070] The support rods 16, the chair legs 17, the cross beam 18 and the L-shaped support beams 13 jointly form a solid frame structure. The sliding adjustment design of the support rods 16 and the chair legs enables the height of the lunch break chair 10 to be adjusted, the chair legs 17 provide vertical support force, the cross beam 18 ensures the lateral stability of the overall structure, and the L-shaped support beams 13 support the seat plate 11. This design ensures that the lunch break chair 10 remains stable and stable during the conversion between the seat shape and the reclining chair shape, meeting the comfort needs of the user.

[0071] In summary, the utility model provides a lunch break chair, its seat plate, backrest, backrest setting in the rear side of seat plate, and with the articulation of seat plate, two L-shaped support beams, L-shaped support beam is divided into first beam section and second beam section, the seat plate is arranged in the upper side of two first beam section, the second beam section is located in the rear end of first beam section and extends upward, the upper end of two second beam section is provided with first cross bar, and the front end of two first beam section is provided with second cross bar, first cross bar and second cross bar are connected and fixed two L-shaped support beams respectively, first cross bar is higher than seat plate, and backrest and first cross bar are connected slidingly. By setting L-shaped support beam, cancel cross beam, effectively eliminate the pinch hand gap between seat plate and cross beam, through setting first cross bar and second cross bar at the two ends of L-shaped support beam, commonly form a stable quadrilateral structure, ensure the structure stability of lunch break chair, and reduce the security hidden danger of pinch hand.

[0072] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made under the utility model concept of the utility model, or direct / indirect application in other related technical fields is included in the patent protection range of the 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, the second beam segment being located at the rear end of the first beam segment and extending upward; a first crossbar is disposed at the upper end of the two second beam segments, and a second crossbar is disposed at the front end of the two first beam segments; the first crossbar and the second crossbar are respectively connected to and fix the two L-shaped support beams; The first crossbar is higher than the seat plate, and the backrest is slidably connected to the first crossbar.

2. The nap chair as described in claim 1, characterized in that, The second crossbar is provided with a locking mechanism for locking the seat plate; the locking mechanism includes a seat plate limiting member; the bottom surface of the seat plate is provided with multiple ribs, and the multiple ribs have limiting portions that match the limiting member.

3. The nap chair as described in claim 2, characterized in that, The limiting part includes a limiting plate and a limiting groove. The limiting plate is staggered with a plurality of the ribs, and the limiting groove is located on the side of the limiting plate facing the limiting member. The limiting member abuts against the limiting plate; A limiting shaft is provided on the side of the limiting member facing the seat plate. The limiting shaft can rotate relative to the limiting member and matches the limiting groove.

4. The nap chair as described in claim 1, characterized in that, A first gap is provided between the backrest and the first crossbar.

5. The nap chair as described in claim 4, 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 first crossbar.

6. The nap chair as described in claim 5, characterized in that, The rib beam has a strip-shaped hole extending along the length of the rib beam, and the first crossbar passes through the strip-shaped hole; When the nap chair is in seat form, the first crossbar is located at the end of the strip hole near the seat plate; When the nap chair is in the form of a recliner, the first crossbar is located at the end of the strip hole away from the seat plate.

7. The nap chair as described in claim 4, characterized in that, The area where the backrest is slidably connected to the first crossbar is bent toward the front of the seat to form the first gap, so as to prevent the backrest and the second beam segment from pinching fingers when the nap chair returns from the napping mode to the seat mode.

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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