Intelligent noon break desk and chair with supporting height convenient to adjust

Abstract

The invention discloses an intelligent noon break desk and chair convenient to adjust the supporting height, and relates to the technical field of height-adjustable rotary chairs and desktop expansion, the intelligent noon break desk and chair comprises a fixed support, a sliding rail block is fixedly connected to the lower surface of the fixed support, and a drawer is fixedly connected to the side wall of the upper end of the fixed support; supporting plates are fixedly installed on the periphery of the upper surface of the drawer, a table plate is fixedly installed on the upper surfaces of the supporting plates, a lead screw is rotationally connected into an auxiliary groove of a sliding rail block, a protection frame is slidably connected into a groove formed in the sliding rail block, and baffles are fixedly connected to the two sides of the bottom of the protection frame. The inner wall of the upper end of the protection frame is slidably connected with a leg plate supporting and fixing piece, through the midday break table top expansion constant-temperature mechanism and the supporting height adjusting and rotating mechanism, by combining season changes and combining traditional and modern technologies, a comfortable sleeping posture can be changed according to the actual temperature, and a proper learning state is provided for a user.

Description

Technical Field

[0001] The invention relates to the technical field of height-adjustable rotating seats and desktop expansion, and in particular to an intelligent lunch break desk and chair with easily adjustable support height. Background Art

[0002] With the advancement of science and technology and the development of educational concepts, students have higher and higher requirements for learning environment. Lunch break is an important part of maintaining students' physical and mental health, while traditional desk and chair design often cannot meet students' comfort needs. The control system is used to automatically adjust the height and angle according to the students' body shape and sitting posture, providing more personalized support and comfort. This intelligent adjustment function can relieve students' neck, back and muscle fatigue, and improve the quality of lunch break and learning efficiency.

[0003] However, among the current smart desks and chairs, most people are still accustomed to lying on the desk for a nap. Due to the limited area of ​​the desk and the fact that traditional desks and chairs are usually of fixed size and cannot be adjusted according to each person's body shape and comfort, the space is too small for larger students or workers, causing discomfort during the lunch break, which can easily make such people lack energy for afternoon classes.

[0004] When you fold down your chair to take a nap lying down, if you don't keep a good distance between the chair and the table behind you, it is very easy to cause a bump. However, fixed tables and chairs usually have great limitations, and the height of this type of chair cannot be adjusted. When you take a nap lying down, your body posture will be uncomfortable, affecting the quality of your nap. In addition, facing taller students, your legs may be overly compressed. In the long run, this may cause physical discomfort or health problems. Shorter students can only take a nap lying down because they cannot reach the table, and they cannot make multiple choices.

[0005] Therefore, an intelligent lunch break desk and chair with easy-to-adjust support height is proposed to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an intelligent lunch break desk and chair with easily adjustable support height to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent lunch break desk and chair that is easy to adjust the support height, comprising: a fixed bracket, a slide rail block is fixedly connected to the bottom of the fixed bracket, a storage block is fixedly connected to the upper side wall of the fixed bracket, a support plate is fixedly installed around the upper surface of the storage block, and a table board is fixedly installed on the upper surface of the support plate, an auxiliary groove is opened inside the slide rail block, a screw rod is rotatably connected in the auxiliary groove of the slide rail block, a protective frame is slidably connected in the groove opened by the slide rail block, an auxiliary inner hole is opened at the bottom of the protective frame, a screw rod is rotatably connected at the bottom of the protective frame, baffles are fixedly connected on both sides of the bottom of the protective frame, an auxiliary cavity is opened at the upper end of the auxiliary groove of the slide rail block, the baffle is clamped in the auxiliary cavity of the slide rail block, a baffle is slidably connected in the auxiliary cavity of the slide rail block, and a leg board support fixing piece is slidably connected on the upper inner wall of the protective frame, and the intelligent lunch break desk and chair that is easy to adjust the support height comprises: a lunch break desktop expansion constant temperature mechanism and a support height adjustment rotating mechanism;

[0008] The lunch break desktop expansion constant temperature mechanism comprises a first connecting rod;

[0009] The support height adjustment rotating mechanism includes a second connecting rod rotatably connected through an auxiliary inner hole opened in the protection frame;

[0010] The baffle is used to prevent students from stepping into the auxiliary groove formed in the slide rail block.

[0011] Preferably, the first connecting rod is rotatably connected to an auxiliary hole opened in the support plate, and fixing plates are symmetrically fixedly connected on both sides of the outer surface of the first connecting rod, and a first limiting column is fixedly installed on the inner wall of the support plate, and a first fixing column and a second fixing column are fixedly installed on both sides of the inner wall of the support plate, the first fixing column is on the inner side of the second fixing column, and the two sides of the fixing plate are rotatably connected to a rotating rod, the end of the rotating rod away from the fixing plate is rotatably connected to the first driven rod, the end of the first driven rod away from the rotating rod is rotatably connected to the expansion plate, the first driven rod is rotatably connected to the second fixed column near the turning point of the rotating rod, the top of the first fixed column is rotatably connected to the second driven rod, and the end of the second driven rod away from the first fixed column is rotatably connected to the expansion plate.

[0012] Preferably, a third fixed column is fixedly connected to the center of the outer wall of the support plate, a fixed disc is rotatably connected to the outer side of the third fixed column, a rotary switch is fixedly connected to the side of the first connecting rod away from the support plate, an auxiliary inner cavity is opened inside the third fixed column, and the rotary switch is rotatably connected in the auxiliary inner cavity opened by the third fixed column, a plurality of wedge grooves are symmetrically opened on the outer ring of the rotary switch, wedge blocks are clamped in the wedge grooves opened by the rotary switch, and the wedge block is slidably connected in the auxiliary cavity of the third fixed column, the wedge block is fixedly connected to a spring on the side away from the rotary switch, the rotary switch is fixedly connected to the rotating column on the side away from the first connecting rod, and a long wedge block is fixedly connected to the outer wall at the bottom of the rotating column.

[0013] Preferably, a rotating disc is fixedly connected to the side of the second connecting rod away from the protective frame, a hexagonal hole is opened in the rotating disc, a rotating part is rotatably connected to the side of the rotating disc away from the second connecting rod, the other side of the second connecting rod is fixedly connected to a gear, the outer ring of the gear is meshed with a vertical movable column, the side of the vertical movable column away from the gear is fixedly connected to a seat, and a head support fixing part is fixedly installed on one side of the seat.

[0014] Preferably, a rotating column is fixedly connected to the bottom of the seat, a cylindrical hole is provided in the rotating column, the vertical movable column passes through the cylindrical hole in the rotating column, a tooth groove is provided on the outer wall of the bottom of the rotating column, a driven wheel is meshed with the outer ring of the tooth groove provided on the rotating column, a driven wheel is rotatably connected to the inner wall of the protective frame, a square groove is provided in the axial array on the outer wall of the second connecting rod, a limiting plate is clamped in the square groove provided in the second connecting rod, an auxiliary slide is provided in the protective frame, and the limiting plate is slidably connected in the auxiliary slide of the protective frame.

[0015] Preferably, the expansion plate is made of soft silicone material around its periphery.

[0016] Preferably, the irregular auxiliary inner cavity defined by the third fixing column is adapted to the components therein.

[0017] Preferably, the seat and head support fixings are made of soft plastic. The plastic chair made of this plastic is relatively soft and has great toughness, can bear a greater weight, and is more suitable for students to use. The cylindrical hole opened in the rotating column is adapted to the vertical movable column.

[0018] Compared with the prior art, the present invention provides a smart lunch break desk and chair that is easy to adjust the support height, which has the following beneficial effects:

[0019] 1. By expanding the constant temperature mechanism on the lunch break desk, more space can be provided in the limited space of the classroom. When used in class, it is convenient to place books, water cups and other items to avoid crowding and clutter, improve learning efficiency, and provide better support and comfort. When used during lunch break, the increased area can relieve muscle tension and discomfort in the wrists and neck, promote correct sitting and sleeping postures, and reduce the health risks caused by bad sleeping postures due to the limitation of the table area. A good lunch break can make people more energetic and spirited in the face of the next course;

[0020] 2. By fixing the constant temperature mechanism of the lunch break desktop, it can provide better stability, not prone to tilting or shaking, and ensure that the items on the desktop are placed stably. It is convenient for placing books, laptops, water cups and other items. There is no need to worry about moving or adjusting the desktop. It can facilitate daily cleaning and maintenance and avoid the accumulation of dust and debris.

[0021] 3. The support height adjustment rotating mechanism can help students or workers find a more comfortable sitting posture. During class, students of different heights can adjust the height of the chair according to their height, thereby ensuring that their sight is at an appropriate distance from the blackboard or screen, reducing the risk of eye fatigue and myopia. Secondly, it can also ensure that their feet can be comfortably placed on the ground to avoid discomfort caused by standing on tiptoe or legs hanging in the air for a long time. In addition, the height adjustment of the chair can help students maintain a correct sitting posture, avoid bad postures such as hunching over, reduce pressure on the spine and muscles, and improve learning comfort and efficiency. During lunch break, students can easily change their orientation, try different postures and angles, and find the most suitable lunch break for themselves, which can effectively improve the quality of lunch break. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 It is a cutaway top view of the three-dimensional structure of the present invention;

[0024] Figure 3 It is a partial cutaway structural diagram of the right rear side of the support height adjustment rotating mechanism of the present invention;

[0025] Figure 4 It is a partial cutaway structural diagram of the right front side of the support height adjustment rotating mechanism of the present invention;

[0026] Figure 5 It is an enlarged view of the partial cross-sectional structure of the lunch break desktop expansion constant temperature mechanism of the present invention;

[0027] Figure 6 It is a front view of the lunch break desktop expansion constant temperature mechanism of the present invention;

[0028] Figure 7 This is an exploded view of the lunch break desktop expansion constant temperature mechanism of the present invention;

[0029] Figure 8 It is a partial cross-sectional enlarged view of the lunch break desktop expansion constant temperature mechanism of the present invention;

[0030] 1. Fixed bracket; 101. Slide block; 102. Storage block; 103. Support plate; 104. Table board; 105. Baffle; 106. Screw rod; 107. Protection frame; 108. Leg support fixing piece;

[0031] Thermostatic mechanism for lunch break desktop expansion: 201, first connecting rod; 202, fixed plate; 203, first limiting column; 204, first fixed column; 205, second fixed column; 206, rotating rod; 207, first driven rod; 208, second driven rod; 209, expansion plate; 210, third fixed column; 211, fixed disc; 212, rotary switch; 213, wedge groove; 214, wedge block; 215, spring; 216, rotating column; 217, long wedge block;

[0032] Support height adjustment rotating mechanism: 301, second connecting rod; 302, rotating disc; 303, rotating member; 304, gear; 305, vertical moving column; 306, seat; 307, head support fixing member; 308, rotating column; 309, cylindrical hole; 310, tooth groove; 311, driven wheel; 312, square groove; 313, limit plate; DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0035] Example

[0036] Please refer to Figures 1 to 3 As shown:

[0037] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a smart lunch break desk and chair that is easy to adjust the support height, including: a fixed bracket 1, a slide block 101 is fixedly connected to the bottom of the fixed bracket 1, a storage block 102 is fixedly connected to the upper side wall of the fixed bracket 1, a support plate 103 is fixedly installed around the upper surface of the storage block 102, a table top 104 is fixedly installed on the upper surface of the support plate 103, an auxiliary groove is opened inside the slide block 101, a screw rod 106 is rotatably connected in the auxiliary groove of the slide block 101, and a protective Frame 107, an auxiliary inner hole is provided at the bottom of the protective frame 107, a screw rod 106 is rotatably connected to the bottom of the protective frame 107, baffles 105 are fixedly connected to both sides of the bottom of the protective frame 107, an auxiliary cavity is provided at the upper end of the auxiliary groove of the slide block 101, the baffle 105 is clamped in the auxiliary cavity of the slide block 101, the baffle 105 is slidably connected in the auxiliary cavity of the slide block 101, and a leg support fixing piece 108 is slidably connected to the inner wall of the upper end of the protective frame 107. A smart lunch break desk and chair that is easy to adjust the support height includes: a lunch break desktop expansion constant temperature mechanism and a support height adjustment rotation mechanism;

[0038] The lunch break desktop expansion constant temperature mechanism includes a first connecting rod 201;

[0039] The support height adjustment rotation mechanism includes a second connecting rod 301 rotatably connected through an auxiliary inner hole opened in the protection frame 107;

[0040] The baffle 105 is used to prevent students from stepping into the auxiliary groove formed in the slide rail block 101 .

[0041] Among them: the slide block 101 is provided with an auxiliary cavity and an auxiliary groove adapted to the baffle 105 and the protection frame 107, the leg support fixing member 108 is composed of a telescopic rod and a rotatably fixed leg plate, the bottom of the protection frame 107 is provided with an auxiliary slider adapted to the auxiliary groove of the slide block 101, the protection frame 107 is provided with an auxiliary hole adapted to the second connecting rod 301, and the protection frame 107 is provided with a movable through threaded hole adapted to the screw rod 106;

[0042] For further examples, please refer to Figures 5 to 8 As shown:

[0043] The first connecting rod 201 is rotatably connected to the auxiliary hole opened in the support plate 103, and the fixing plates 202 are symmetrically fixedly connected on both sides of the outer surface of the first connecting rod 201, and the first limiting column 203 is fixedly installed on the inner wall of the support plate 103, and the first fixing column 204 and the second fixing column 205 are fixedly installed on both sides of the inner wall of the support plate 103, and the first fixing column 204 is on the inner side of the second fixing column 205, and the two sides of the fixing plate 202 are rotatably connected to the rotating rod 206, and the end of the rotating rod 206 away from the fixing plate 202 is rotatably connected to the first driven rod 207, and the end of the first driven rod 207 away from the rotating rod 206 is rotatably connected to the expansion plate 209, and the first driven rod 207 is rotatably connected to the second fixed column 205 near the bending part of the rotating rod 206, and the top of the first fixed column 204 is rotatably connected to the second driven rod 208, and the end of the second driven rod 208 away from the first fixed column 204 is rotatably connected to the expansion plate 209.

[0044] A third fixed column 210 is fixedly connected to the center of the outer wall of the support plate 103, and a fixed disc 211 is rotatably connected to the outer side of the third fixed column 210. A rotary switch 212 is fixedly connected to the side of the first connecting rod 201 away from the support plate 103. An auxiliary inner cavity is opened inside the third fixed column 210, and the rotary switch 212 is rotatably connected in the auxiliary inner cavity opened by the third fixed column 210. A plurality of wedge grooves 213 are symmetrically opened on the outer circle of the rotary switch 212. A wedge block 214 is clamped in the wedge groove 213 opened by the rotary switch 212. The wedge block 214 is slidably connected in the auxiliary cavity of the third fixed column 210. A spring 215 is fixedly connected to the wedge block 214 on the side away from the rotary switch 212. A rotating column 216 is fixedly connected to the side of the rotary switch 212 away from the first connecting rod 201, and a long wedge block 217 is fixedly connected to the outer wall at the bottom of the rotating column 216.

[0045] Wherein: the fixed disc 211 is manually driven by the user, the fixed plate 202 is limited by the first limit column 203 and can only rotate ninety degrees, the expansion plate 209 is limited by the wedge block 214 and can only be fixed at the initial position and the two sides of the table board 104. The surrounding of the expansion plate 209 is made of soft silicone material, and the irregular auxiliary inner cavity opened by the third fixed column 210 is adapted to the components therein;

[0046] The effects achieved by this embodiment are as follows: In the prior art, many students have become accustomed to the design of traditional desks and chairs, which are usually of fixed size and cannot be adjusted according to each person's body shape and comfort. Therefore, for students or workers with larger bodies, the space may be too small, causing discomfort during lunch breaks. Compared with the prior art, the expansion of the desktop by the expansion plate 209 can provide more usage space within the limited space of the classroom. When used in class, it is convenient to place items such as books and water cups, avoid crowding and clutter, improve learning efficiency, provide better support and comfort, and when used during lunch breaks, the increased area can relieve muscle tension and discomfort in parts such as the wrists and neck, promote correct sitting and sleeping postures, and reduce the health risks caused by poor sleeping postures due to the limitation of the table area. A good lunch break can make people more energetic and spirited when facing the next course.

[0047] For further examples, please refer to Figure 3 to Figure 4 As shown:

[0048] A rotating disc 302 is fixedly connected to the side of the second connecting rod 301 away from the protective frame 107, and a hexagonal hole is opened in the rotating disc 302. The rotating disc 302 is rotatably connected to the side of the rotating disc 302 away from the second connecting rod 301. A gear 304 is fixedly connected to the other side of the second connecting rod 301. A vertical movable column 305 is meshed with the outer ring of the gear 304. The side of the vertical movable column 305 away from the gear 304 is fixedly connected to a seat 306, and a head support fixing part 307 is fixedly installed on one side of the seat 306.

[0049] A rotating column 308 is fixedly connected to the bottom of the seat 306, and a cylindrical hole 309 is opened in the rotating column 308. The vertical movable column 305 passes through the cylindrical hole 309 in the rotating column 308. A tooth groove 310 is opened on the outer wall of the bottom of the rotating column 308. The outer circle of the tooth groove 310 opened on the rotating column 308 is meshed with a driven wheel 311. The driven wheel 311 is rotatably connected to the inner wall of the protective frame 107. A square groove 312 is opened on the axial array on the outer wall of the second connecting rod 301. A limiting plate 313 is clamped in the square groove 312 opened in the second connecting rod 301. An auxiliary slide is opened in the protective frame 107, and the limiting plate 313 is slidably connected in the auxiliary slide of the protective frame 107.

[0050] Among them: the vertical movable column 305 is provided with a tooth groove adapted to the gear 304, the head support fixing part 307 is composed of a hand crank and a fixed head plate, the rotating disc 302 is provided with a hexagonal auxiliary hole adapted to the rotating part 303, the limiting plate 313 is manually pulled out of the square groove 312 by the user, and the height can be raised and lowered by the rotating part 303. The seat 306 and the head support fixing part 307 are made of soft plastic, and the cylindrical hole 309 provided in the rotating column 308 is adapted to the vertical movable column 305;

[0051] The effects achieved by this embodiment are as follows: In the prior art, when the chair is folded down for a lying nap, if the distance between the chair and the table behind is not controlled well, it is very easy to cause bumps. However, fixed tables and chairs usually have great limitations, and the height of this type of chair cannot be adjusted. When taking a nap lying down, it will cause an uncomfortable body posture, affecting the quality of the nap, and facing taller classmates may cause excessive pressure on the legs. In the long run, this may cause physical discomfort or health problems. When facing shorter classmates, they can only lie down for a nap because they cannot reach the table top, and multiple choices are not available. Compared with the prior art, by supporting the height adjustment rotation mechanism, it can help students or workers find A more comfortable sitting posture. During class, students of different heights can adjust the height of the chair according to their height, thereby ensuring that their line of sight is at an appropriate distance from the blackboard or screen, reducing the risk of eyestrain and myopia. Secondly, they can ensure that their feet can be comfortably placed on the ground to avoid discomfort caused by standing on tiptoe or legs hanging in the air for a long time. In addition, the height adjustment of the chair can help students maintain a correct sitting posture, avoid bad postures such as hunching over, reduce pressure on the spine and muscles, and improve learning comfort and efficiency. During lunch break, they can easily change their direction, try different postures and angles to find the most suitable lunch break for themselves, and can effectively improve the quality of lunch break.

[0052] Everything in the above example works like this:

[0053] In the initial state: the bottom of the protection frame 107 is located at the top of the auxiliary slideway opened in the slide block 101, away from the fixed bracket 1, and the baffle 105 fixed to the front side of the bottom of the protection frame 107 completely blocks the screw rod 106 in the auxiliary groove of the slide block 101;

[0054] The following is the working process of the protective frame 107 moving in the auxiliary groove of the slide rail block 101:

[0055] When preparing for class, the protective frame 107 slides in the auxiliary groove of the slide rail block 101, which will rotate the screw rod 106 that is rotatably connected to the bottom and move the baffle 105 that is fixedly connected to the bottom. The moving distance of the protective frame 107 can be controlled according to its actual situation. The distance from the desktop can be controlled appropriately. During lunch break, the protective frame 107 can be slid away from the table board 104 to achieve the comfortable distance required for lying down for lunch break.

[0056] Please refer to the above working process Figure 1 to Figure 2 .

[0057] In the initial state of the lunch break desktop expansion thermostatic mechanism: the fixed plate 202 is fixed on both sides of the first connecting rod 201 in a 180-degree horizontal vertical state, the bottom of the fixed plate 202 is limited by the first limiting column 203 below and is supported by it, the rotating rod 206 is parallel to the fixed plate 202 and perpendicular to the horizontal plane, the first driven rod 207 and the second driven rod 208 are in a slightly inclined state, the expansion plate 209 is vertically parallel to the rotating rod 206, the wedge groove 213 opened on the top of the rotary switch 212 is partially engaged with the wedge block 214, the spring 215 is in a slightly squeezed state, the long wedge block 217 fixed on the rotating column 216 is in a 90-degree vertical state, and the auxiliary handle on the fixed disc 211 is vertically parallel to the long wedge block 217;

[0058] The following is the working process of the lunch break desktop expansion constant temperature mechanism:

[0059] When in use, the fixed disc 211 is manually rotated to drive the rotating column 216 in the third fixed column 210 to rotate. Since the rotating column 216 is fixedly connected to the long wedge block 217, the long wedge block 217 will rotate with the rotating column 216. When the fixed disc 211 is rotated ninety degrees clockwise, the wedge block 214 stuck in the wedge groove 213 will be pushed out first, and the spring 215 will be completely squeezed. After the rotating switch 212 rotates ninety degrees clockwise along with the fixed disc 211, the wedge block 214 will enter the next wedge groove 213. The spring 215 is in a loose fixed state at this time. Since the rotating switch 212 and the first connecting rod 201 are fixedly connected, the first connecting rod 201 will rotate ninety degrees together with the fixed disc 211. The fixing plates 202 on both sides of the first connecting rod 201 are restricted by the first limiting columns 203. The fixed disc 211 can only rotate ninety degrees, and the rotating rod 206 rotatably connected to the fixed plate 202 rotates with the first driven rod 207. Since the bending part of the first driven rod 207 is restricted by the second fixed column 205, the first driven rod 207 can only rotate with the rotating rod 206 with the second fixed column 205 as the center. Since the rotating rod 206 and the first driven rod 207 are rotatably connected to the bottom of the expansion plate 209, at this time, the first driven rod 207 supports the expansion plate 209 to move outward with the first fixed column 204 as the center as the rotating rod 206 rotates. The first driven rod 207 rotates the expansion plate 209 to be gradually moved to both sides of the table board 104. At this time, the wedge groove 213 opened on the rotary switch 212 is clamped together with the wedge block 214, so that the expansion plate 209 can be stably fixed on both sides of the table board 104.

[0060] When the fixed disc 211 is manually rotated counterclockwise for 90 degrees, the rotating column 216 fixedly connected to the bottom of the fixed disc 211 will rotate with the long wedge 217 and the rotating switch 212, and the wedge 214 clamped in the wedge groove 213 will slide out with the rotation, so that the spring 215 is squeezed. Because the rotating switch 212, the first connecting rod 201 and the fixed plate 202 are fixedly connected, the fixed plate 202 will gradually return to the upper surface of the first limiting column 203 at the bottom, and the rotating rod 206 pulls the first driven rod 207 with the second fixed column 205 as the center of the circle to pull the expansion plate 209 from both sides of the table board 104 back to the support plate 103. Through the limitation of the first limiting column 203 and the support of the second driven rod 208, the expansion plate 209 returns to its initial state.

[0061] Compared with the prior art, the expansion of the table 104 by the expansion plate 209 of the lunch break table expansion constant temperature mechanism can provide more use space under the limited space of the classroom. When used in class, it is convenient to place items such as books and water cups, avoid crowding and clutter, improve learning efficiency, provide better support and comfort, and when used during lunch break, the increased area can relieve muscle tension and discomfort in the wrists and neck and other parts, and can provide better stability, not prone to tilting or shaking, and ensure that the items on the desktop are placed stably;

[0062] Please refer to the above working process Figures 5 to 8 .

[0063] In the initial state of the support height adjustment rotating mechanism: the gear 304 is meshed with the top of the auxiliary groove opened on the outer wall of the vertical movable column 305, the seat 306 is attached to the upper surface of the protective frame 107, the head support fixing member 307 is in a vertical position and contacts the back, the top of the tooth groove 310 is meshed with the driven wheel 311, and the limit plate 313 is clamped in the square groove 312 opened on the second connecting rod 301;

[0064] The following is the working process of the support height adjustment rotation mechanism:

[0065] When in use, since the tooth groove 310 and the driven wheel 311 are meshed with each other, the driven wheel 311 can rotate freely inside the protective frame 107. By rotating the seat 306, the rotating column 308 fixedly connected to the bottom of the seat 306 and the tooth groove 310 on the outer wall of the bottom of the rotating column 308 can be rotated together;

[0066] By pulling out the limit plate 313 engaged in the square groove 312, the rotating member 303 can be used to rotate the rotating disc 302. Since the rotating disc 302, the second connecting rod 301 and the gear 304 are fixedly connected, the gear 304 and the vertical moving column 305 are meshed with each other, and the vertical moving column 305 is fixedly connected to the seat 306 through the cylindrical hole 309 opened in the rotating column 308. When the rotating member 303 rotates clockwise, the seat 306 will move upward, and similarly By pulling out the limit plate 313 engaged in the square groove 312, the rotating member 303 can be used to rotate the rotating disc 302. Since the rotating disc 302, the second connecting rod 301 and the gear 304 are fixedly connected, the gear 304 and the vertical moving column 305 are meshed with each other, and the vertical moving column 305 is fixedly connected to the seat 306 through the cylindrical hole 309 opened in the rotating column 308. When the rotating member 303 rotates counterclockwise, the seat 306 will move downward;

[0067] Please refer to the above working process Figure 3 to Figure 4 .

[0068] Compared with the prior art, by supporting the height adjustment rotation mechanism, adjusting the height of the seat 306 and the position of the rotating seat 306, it can help students or workers find a more comfortable sitting posture. During class, for students of different heights, they can adjust the height of the seat according to their height, thereby ensuring that their line of sight is at an appropriate distance from the blackboard or screen, reducing the risk of eyestrain and myopia, and secondly, it can also ensure that their feet can be comfortably placed on the ground to avoid discomfort caused by standing on tiptoe for a long time or with their legs hanging in the air. During lunch break, they can easily change their direction and try different postures and angles to find the lunch break that suits them best, and can effectively improve the quality of the lunch break.

[0069] Overview: By combining traditional desks and chairs with smart desks and chairs, students or users who are accustomed to the design of traditional desks and chairs can adapt better. In combination with seasonal changes and lunch break status, they can change comfortable sleeping positions according to actual temperature, thereby ensuring physical health and giving users a suitable lunch break state.

[0070] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart lunch break desk and chair with adjustable support height, comprising: A fixed bracket (1), wherein a slide block (101) is fixedly connected to the bottom of the fixed bracket (1), a storage block (102) is fixedly connected to the upper side wall of the fixed bracket (1), a support plate (103) is fixedly installed around the upper surface of the storage block (102), a table top (104) is fixedly installed on the upper surface of the support plate (103), an auxiliary groove is opened inside the slide block (101), a screw rod (106) is rotatably connected in the auxiliary groove of the slide block (101), a protective frame (107) is slidably connected in the groove opened in the slide block (101), and an auxiliary inner hole is opened at the bottom of the protective frame (107) , the bottom of the protection frame (107) is rotatably connected to a screw rod (106), the bottom two sides of the protection frame (107) are fixedly connected to baffles (105), the upper end of the auxiliary groove of the slide rail block (101) is provided with an auxiliary cavity, the baffle (105) is clamped in the auxiliary cavity of the slide rail block (101), the baffle (105) is slidably connected in the auxiliary cavity of the slide rail block (101), and the upper inner wall of the protection frame (107) is slidably connected to a leg support fixing member (108), characterized in that: the intelligent lunch break desk and chair that is easy to adjust the support height includes: a lunch break desktop expansion constant temperature mechanism and a support height adjustment rotation mechanism; The lunch break desktop expansion constant temperature mechanism comprises a first connecting rod (201); The support height adjustment rotation mechanism comprises a second connecting rod (301) rotatably connected through an auxiliary inner hole opened in the protection frame (107); The baffle (105) is used to prevent students from stepping into the auxiliary groove provided in the slide rail block (101).

2. The intelligent lunch break desk and chair with easily adjustable support height according to claim 1, characterized in that: The first connecting rod (201) is rotatably connected to an auxiliary hole provided in the support plate (103); fixing plates (202) are symmetrically fixedly connected to both sides of the outer surface of the first connecting rod (201); a first limiting column (203) is fixedly installed on the inner wall of the support plate (103); a first fixing column (204) and a second fixing column (205) are fixedly installed on both sides of the inner wall of the support plate (103); the first fixing column (204) is on the inner side of the second fixing column (205); and rotating rods (206) are rotatably connected to both sides of the fixing plate (202). The end of the rotating rod (206) away from the fixed plate (202) is rotatably connected to the first driven rod (207), the end of the first driven rod (207) away from the rotating rod (206) is rotatably connected to the expansion plate (209), the first driven rod (207) is rotatably connected to the second fixed column (205) near the bending part of the rotating rod (206), the top end of the first fixed column (204) is rotatably connected to the second driven rod (208), and the end of the second driven rod (208) away from the first fixed column (204) is rotatably connected to the expansion plate (209).

3. The intelligent lunch break desk and chair with easily adjustable support height according to claim 2, characterized in that: A third fixing column (210) is fixedly connected at the center of the outer wall of the support plate (103); a fixing disc (211) is rotatably connected to the outer side of the third fixing column (210); a rotary switch (212) is fixedly connected to the side of the first connecting rod (201) away from the support plate (103); an auxiliary inner cavity is provided inside the third fixing column (210); the rotary switch (212) is rotatably connected to the auxiliary inner cavity provided by the third fixing column (210); and the outer ring of the rotary switch (212) is symmetrically provided with a plurality of A wedge groove (213) is formed, a wedge block (214) is clamped in the wedge groove (213) opened in the rotary switch (212), the wedge block (214) is slidably connected in the auxiliary cavity of the third fixed column (210), the wedge block (214) is fixedly connected to a spring (215) on the side away from the rotary switch (212), the rotary switch (212) is fixedly connected to a rotating column (216) on the side away from the first connecting rod (201), and a long wedge block (217) is fixedly connected to the outer wall at the bottom of the rotating column (216).

4. The intelligent lunch break desk and chair with easily adjustable support height according to claim 1, characterized in that: A rotating disc (302) is fixedly connected to the side of the second connecting rod (301) away from the protective frame (107), a hexagonal hole is opened in the rotating disc (302), a rotating member (303) is rotatably connected to the side of the rotating disc (302) away from the second connecting rod (301), a gear (304) is fixedly connected to the other side of the second connecting rod (301), a vertical movable column (305) is meshed with the outer ring of the gear (304), a seat (306) is fixedly connected to the side of the vertical movable column (305) away from the gear (304), and a head support fixing member (307) is fixedly installed on one side of the seat (306).

5. The intelligent lunch break desk and chair with easily adjustable support height according to claim 4, characterized in that: The bottom of the seat (306) is fixedly connected to a rotating column (308), a cylindrical hole (309) is provided in the rotating column (308), the vertical movable column (305) passes through the cylindrical hole (309) in the rotating column (308), a tooth groove (310) is provided on the outer wall of the bottom of the rotating column (308), the outer ring of the tooth groove (310) provided on the rotating column (308) is meshed with a driven wheel (311), the inner wall of the protective frame (107) is rotatably connected to the driven wheel (311), the outer wall of the second connecting rod (301) is provided with a square groove (312) in an axial array, the square groove (312) provided on the second connecting rod (301) is clamped with a limiting plate (313), the protective frame (107) is provided with an auxiliary slide, and the auxiliary slide of the protective frame (107) is slidably connected to the limiting plate (313).

6. The intelligent lunch break desk and chair with easily adjustable support height according to claim 2, characterized in that: The periphery of the expansion plate (209) is made of soft silicone material.

7. The intelligent lunch break desk and chair with easily adjustable support height according to claim 3, characterized in that: The irregular auxiliary inner cavity formed by the third fixing column (210) is adapted to the components therein.

8. The intelligent lunch break desk and chair with easily adjustable support height according to claim 5, characterized in that: The seat (306) and the head support fixing member (307) are made of soft plastic. The plastic chair made of the plastic is relatively soft and has high toughness, can bear a greater weight, and is more suitable for students to use. The cylindrical hole (309) provided in the rotating column (308) is adapted to the vertical movable column (305).

Images