Study chair

By introducing a stop mechanism and a detachable connection design into the learning chair, the problems of complex structure and inconvenience of use of existing chairs are solved, achieving posture correction and reduced transportation costs, while enhancing learning efficiency.

CN223873631UActive Publication Date: 2026-02-06MAANSHAN YEHANG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520421555.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-02-06
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

Existing study chairs are complex in structure and inconvenient to use, and cannot effectively correct the sitting posture problems of teenagers and children, leading to damage to their vision and spinal health.

Method used

Design a study chair, comprising a chair body and a stop mechanism. The stop mechanism consists of a fixed rod, a pull rod, a stop block and a locking assembly. Posture correction is achieved by raising and lowering the pull rod. A slot is provided on the chair surface to reduce interference. The chair surface, backrest assembly and leg assembly are detachably connected to save transportation space.

Benefits of technology

It enables flexible correction of sitting posture and smooth switching between regular use, reduces usage interference, lowers transportation costs, and improves learning efficiency through an intelligent learning platform.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a learning chair and belongs to the technical field of chairs. The automobile seat comprises a seat body and a stopping mechanism arranged on the front side of the seat body. The stop mechanism comprises a fixing rod, a pull rod and a stop block arranged at the top of the pull rod, wherein the fixing rod and the pull rod are connected in a telescopic mode. A locking assembly is arranged between the fixing rod and the pull rod. The locking assembly comprises a connecting rod and a locking block; wherein one end of the connecting rod is connected with a pressing block, the other end of the connecting rod is connected with an extrusion block, and the connecting rod is sleeved with a first elastic piece used for vertically resetting the connecting rod; the locking block is provided with a limiting protrusion matched with the limiting holes in the fixing rod and the pull rod and a second elastic piece used for transversely extruding the locking block. The locking block is extruded by the second elastic piece, so that the limiting bulge on the locking block is clamped into the corresponding limiting hole; and under the extrusion of the extrusion block, the transverse sliding is carried out, so that the limiting bulges on the transverse sliding are separated from the corresponding limiting holes.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seat, more specifically, relate to a study seat. BACKGROUND

[0002] The sitting posture has an important influence on human health, especially for teenagers. In the daily learning process, teenagers often focus on the learning content and ignore their own sitting posture. Unintentionally, the body will unconsciously lean forward, making the distance between the eyes and the desktop dramatically shorten. When this distance is too close, the eyes need to pay more adjustment to focus. Long-term in this state, the eyes are easily tired, and then damage the vision, eventually leading to the appearance of amblyopia or myopia problems. In addition to vision problems, the wrong sitting posture is also a hidden health killer that seriously threatens the normal development of the spine and skeleton of teenagers. Long-term maintenance of bad posture will cause uneven pressure on the spine, breaking its natural physiological curve, and thus causing posture problems such as humpback, high and low shoulders, etc.

[0003] A series of seats that can help teenagers improve their posture are also disclosed in the prior art, such as CN219270433U, CN214803279U, CN220327183U, etc. However, the overall structure of the correction seat is relatively complex, and when used as a regular seat, it is inconvenient. Therefore, it is of great practical significance to design a learning seat with simple structure and flexible switching according to actual needs. UTILITY MODEL CONTENT

[0004] 1. Problem to be solved

[0005] In view of at least some of the problems existing in the prior art, the utility model provides a learning seat, which aims to solve the problem of the existing learning seat, which is relatively complex in structure and inconvenient to use.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the utility model adopts the following technical solutions:

[0008] The utility model relates to a learning seat, which comprises a seat body and a stop mechanism arranged on the front side of the seat body.

[0009] A fixed rod for connecting with the seat body;

[0010] A pull rod slidingly sleeved in the fixed rod;

[0011] A stop block arranged on the top of the pull rod;

[0012] and a locking assembly arranged in the inner cavity of the pull rod;

[0013] The locking assembly comprises a connecting rod and a locking block; one end of the connecting rod is connected with a pressing block, the other end is connected with a pressing block, and a first elastic member for vertically resetting the connecting rod is sleeved on the connecting rod; the locking block is provided with a limiting protrusion matched with the limiting hole of the fixed rod and the pull rod and a second elastic member for transversely pressing the locking block;

[0014] The locking block is pressed by the second elastic member, so that the limiting protrusion thereon is clamped into the corresponding limiting hole; the pressing block is pressed to slide transversely, so that the limiting protrusion thereon is separated from the corresponding limiting hole.

[0015] In some embodiments, the locking block is provided with a pressing space for the pressing block to extend into, and a pressure receiving surface in the pressing space is provided for the pressing block to press; and the pressure receiving surface is an inclined surface.

[0016] In some embodiments, the end surface of the pressing block forms a pressing surface, and the pressing surface is an inclined surface capable of being matched with the pressure receiving surface.

[0017] In some embodiments, the locking block is provided with a receiving groove on the side away from the limiting protrusion, one end of the second elastic member is connected with the inner wall of the connecting rod, and the other end is clamped into the receiving groove.

[0018] In some embodiments, the stop block comprises an upper shell and a lower shell connected with each other; the upper shell is provided with a mounting hole for the pressing block to be clamped into, and the pressing block is provided with a limiting ring matched with the mounting hole.

[0019] The lower shell is provided with a through hole for the connecting rod to pass through and a connecting section for connecting with the pull rod.

[0020] In some embodiments, the bottom of the pressing block is provided with a first mounting groove for connecting with the connecting rod and a second mounting groove for clamping one end of the first elastic member; and the lower shell is provided with a third mounting groove for clamping the other end of the first elastic member.

[0021] In some embodiments, the seat body comprises a seat surface, a seat back assembly and a seat leg assembly; the fixed rod is arranged on the seat leg assembly, and the seat surface is provided with a clamping groove for clamping the stop block.

[0022] In some embodiments, the chair back assembly comprises a chair back and connecting rods arranged on both sides of the chair back; wherein the connecting rods are adjustably connected with the chair surface through adjusting rods, and the two are locked through a locking nut; each side of the adjusting rod is provided with a bolt shaft, and the connecting rods and the chair surface are provided with adjusting holes for the bolt shaft to be clamped into.

[0023] In some embodiments, the chair leg assembly comprises a support seat and two support legs arranged on the support seat, and a cross rod is further arranged between the two support legs; wherein the ends of the support legs are provided with buckles, and the support seat and the chair surface are provided with buckles for the buckles to be clamped into.

[0024] In some embodiments, a reinforcing rod is arranged between the fixing rod and the cross rod, and the reinforcing rod is connected with the fixing rod and the cross rod through clamping.

[0025] 3. Beneficial effects

[0026] Compared with the prior art, the beneficial effects of the present application are:

[0027] (1) The learning chair of the present application, by arranging a stop mechanism on the front side of the seat body, when the pull rod of the stop mechanism is lifted upward, the pull rod and the stop block thereon can be used to prevent the user from leaning forward too much and causing an improper sitting posture; when the pull rod is retracted, it can be used as a regular chair, and will not interfere with the user too much; at the same time, the stop mechanism as a whole adopts a pull-up structure, which is more convenient and fast to operate.

[0028] (2) The learning chair of the present application, a clamping groove is arranged on the chair surface for the stop block to be clamped into, when the pull rod drives the stop block thereon to descend, it is just clamped into the clamping groove, thereby forming a complete chair surface; when the learning chair is used as a regular chair, the interference caused to the user by the presence of the stop block can be further reduced.

[0029] (3) The learning chair of the present application, the chair surface and the chair back assembly, the chair leg assembly, and the stop mechanism are all connected in a detachable manner, thereby effectively saving transportation space and reducing transportation costs. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic view of the learning chair of the present application;

[0031] Figure 2 is a structural schematic view of the stop mechanism in the present application;

[0032] Figure 3 is a structural schematic view of the locking assembly in the present application;

[0033] Figure 4 This is a schematic diagram of the structure of the stop block of this utility model;

[0034] Figure 5 This is a schematic diagram of the pressing block in this utility model;

[0035] Figure 6 This is a schematic diagram showing the cooperation between the extrusion block and the locking block in this utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the chair surface in this utility model;

[0037] Figure 8 This is a schematic diagram of the structure of the chair back assembly in this utility model;

[0038] Figure 9 for Figure 8 A magnified view of a portion of point A in the middle;

[0039] Figure 10 This is a schematic diagram of the chair leg assembly in this utility model.

[0040] Figure 11 This is a schematic diagram showing the distribution of the hardware components of the intelligent learning platform in the stop mechanism.

[0041] In the diagram: 100, seat body; 110, seat surface; 111, card slot;

[0042] 120. Chair back assembly; 121. Chair back; 122. Connecting rod; 1221. Adjustment hole; 123. Adjustment rod; 1231. Pin shaft; 124. Locking nut;

[0043] 130. Chair leg assembly; 131. Support base; 1311. Buckle; 132. Support leg; 1321. Buckle; 133. Crossbar; 134. Reinforcing bar;

[0044] 200. Stopping mechanism; 210. Fixing rod; 220. Tie rod; 230. Stopping block; 231. Mounting port; 232. Through hole; 233. Connecting section; 234. Third mounting groove;

[0045] 240. Locking assembly; 241. Connecting rod; 242. Locking block; 2421. Limiting protrusion; 2422. Extrusion space; 2423. Pressure surface; 2424. Receiving groove; 243. Pressing block; 2431. Limiting ring; 2432. First mounting groove; 2433. Second mounting groove; 244. Extrusion block; 2441. Extrusion surface; 245. First elastic element; 246. Second elastic element.

[0046] 310. Camera; 320. Projector; 330. Microphone; 340. Speaker. Detailed Implementation

[0047] In order to further understand the content of the present application, the present application will be described in detail in conjunction with the drawings.

[0048] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0049] The present application will be further described below in conjunction with specific embodiments.

[0050] Embodiment 1

[0051] As shown in Figure 1 , Figure 2 , the learning chair of the present embodiment comprises a seat body 100 and a stop mechanism 200 arranged on the front side of the seat body 100. The seat body 100 is the same as a conventional seat, comprising a seat surface 110, a seat back assembly 120 and a seat leg assembly 130. The stop mechanism 200 comprises a fixed rod 210, a pull rod 220 and a stop block 230. The fixed rod 210 is used to connect with the seat leg assembly 130 to serve as the support basis of the entire stop mechanism 200. One end of the pull rod 220 is in a sleeved sliding connection with the fixed rod 210, and the other end is connected with the stop block 230. At the same time, a locking assembly 240 is arranged between the fixed rod 210 and the pull rod 220 to complete the locking and loosening operation therebetween.

[0052] The learning chair of the present embodiment can prevent the user from having an improper sitting posture due to excessive forward leaning of the body by using the pull rod 220 and the stop block 230 thereon when the pull rod 220 is lifted upward. When the pull rod 220 is retracted, it can be used as a conventional seat without causing excessive interference to the user.

[0053] As shown in Figure 3 , the locking assembly 240 comprises a connecting rod 241 and a locking block 242. One end of the connecting rod 241 extends out of the pull rod 220 and is connected with a pressing block 243, and the other end is connected with a squeezing block 244, and a first elastic member 245 for vertically resetting the connecting rod 241 is sleeved on the connecting rod 241.

[0054] The locking block 242 is provided with a limiting protrusion 2421 that cooperates with the limiting holes on the fixing rod 210 and the pull rod 220, and a second elastic element 246 for laterally pressing the locking block 242. Under the pressure of the second elastic element 246, the locking block 242 causes the limiting protrusion 2421 to engage into the corresponding limiting hole, thereby completing the locking operation between the fixing rod 210 and the pull rod 220. Under the pressure of the pressing block 244, the locking block 242 slides laterally, which can overcome the elastic force of the second elastic element 246, causing the limiting protrusion 2421 to disengage from the corresponding limiting hole, thereby completing the unlocking operation between the fixing rod 210 and the pull rod 220.

[0055] Optionally, both the first elastic element 245 and the second elastic element 246 can be springs. Meanwhile, to allow the pull rod 220 to have different adjustable heights to suit the actual needs of users of different heights, multiple limiting holes can be provided on the fixed rod 210 in the axial direction. The actual lifting height of the fixed rod 210 is adjusted by the cooperation between the limiting protrusion 2421 and the different height limiting holes on the fixed rod 210. Furthermore, it should be noted that "vertical" refers to the length direction of the pull rod 220, i.e., the axial direction; while "lateral" refers to the width direction of the pull rod 220, i.e., the radial direction.

[0056] Specifically, refer to Figure 6 As shown, both the locking block 242 and the pressing block 244 are disposed in the inner cavity of the pull rod 220, with the pressing block 244 located above the locking block 242. The locking block 242 is vertically confined within the inner cavity of the pull rod 220, but can move laterally.

[0057] A receiving groove 2424 is provided on the side of the locking block 242 away from the limiting protrusion 2421. One end of the second elastic member 246 is connected to the inner wall of the connecting rod 241, and the other end is inserted into the receiving groove 2424. At the same time, the locking block 242 is provided with a compression space 2422 for the compression block 244 to extend into. The compression space 2422 is provided with a pressure-receiving surface 2423 for the compression block 244 to compress, and the pressure-receiving surface 2423 is an inclined surface. A compression surface 2441 is also formed on the end face of the compression block 244. Preferably, the compression surface 2441 is an inclined surface that can fit against the pressure-receiving surface 2423 to increase the contact area between them and ensure the smooth operation of the compression.

[0058] refer to Figure 4 , Figure 5As shown in the drawings, in some embodiments, the stopper 230 comprises an upper shell and a lower shell connected with each other. The upper shell is provided with a mounting opening 231 for the press block 243 to be clamped into, and the lower shell is provided with a through hole 232 for the connecting rod 241 to pass through. Meanwhile, the outer peripheral wall of the press block 243 is provided with a limiting ring 2431 located at the lower side of the mounting opening 231, for limiting the up-and-down movement of the press block 243 to prevent the press block 243 from disengaging from the mounting opening 231.

[0059] Further, the lower shell is provided with a connecting section 233 extending downward, which can be clamped into the inner cavity of the pull rod 220 to complete the connection of the two. Meanwhile, the bottom of the press block 243 is provided with a first mounting groove 2432 and a second mounting groove 2433, and the top of the lower shell is formed with a third mounting groove 234. The end of the connecting rod 241 can be clamped into the first mounting groove 2432 after passing through the through hole 232, to complete the assembly between the connecting rod 241 and the press block 243. The two ends of the first elastic member 245 are located in the second mounting groove 2433 and the third mounting groove 234 respectively, to limit the first elastic member 245.

[0060] As shown in the drawings, Figure 7 in some embodiments, the seat surface 110 is provided with a clamping groove 111 for the stopper 230 to be clamped into. When the pull rod 220 drives the stopper 230 on it to descend, it is just clamped into the clamping groove 111, thereby forming a complete seat surface. When the learning seat is used as a regular seat, the interference caused to the user by the presence of the stopper 230 can be further reduced.

[0061] Embodiment 2

[0062] The learning seat of this embodiment is further optimized in the specific structure of the seat body 100 on the basis of the above-mentioned embodiments, with the main purpose of reducing the volume occupied by the learning seat during transportation, so as to reduce the transportation cost.

[0063] Specifically, referring to the drawings, Figures 7-9 the backrest assembly 120 comprises a backrest 121, connecting rods 122 arranged on both sides of the backrest 121, and an adjusting rod 123 for connecting the connecting rods 122 and the seat surface 110. The two sides of the adjusting rod 123 are each provided with a latch shaft 1231. Meanwhile, the connecting rods 122 and the seat surface 110 are each provided with a plurality of adjusting holes 1221 for the latch shaft 1231 to be clamped into. Through the cooperation between the latch shaft 1231 and different adjusting holes 1221, the inclination angle of the backrest 121 can be adjusted. Further, after the inclination angle of the backrest 121 is adjusted, the connecting rods 122 and the seat surface 110 can be locked by the lock nut 124 to ensure the stability of the connection.

[0064] Referring to the drawings,Figure 10 As shown, the chair leg assembly 130 includes a support base 131 and two support legs 132 provided on the support base 131, and a cross bar 133 is further provided between the two support legs 132. Among them, the support base 131 is integrally in a "C" shape and serves as the support foundation of the entire seat. Both ends of the support leg 132 are provided with buckles 1321, and the support base 131 and the seat surface 110 are provided with bayonets 1311 for the buckles 1321 to snap into. Through the mutual cooperation of the buckles 1321 and the bayonets 1311, the detachable connection between the chair leg assembly 130 and the seat surface 110 can be achieved.

[0065] Further, the connection between the cross bar 133 and the two side support legs 132, and the connection between the fixed bar 210 and the support base 131 can both be formed by the above-mentioned snap connection. Of course, other detachable structures in the prior art, such as bolt connection, etc., can also be used, and specific limitations are not made here.

[0066] In some embodiments, in order to further improve the stability between the fixed bar 210 and the chair leg assembly 130. A reinforcing bar 134 can be provided between the fixed bar 210 and the cross bar 133. The reinforcing bar 134 and the fixed bar 210 as well as the cross bar 133 can also adopt a detachable connection method.

[0067] A learning seat of this embodiment can effectively save transportation space and thus reduce transportation costs by making the detachable connection between various components.

[0068] Embodiment 3

[0069] A learning seat of this embodiment further includes an intelligent learning platform, which mainly includes a hardware part and a processor component. Specifically, as Figure 11 shown, the hardware part includes a camera 310, a projector 320, a microphone 330 and a speaker 340 provided on the stop block 230. Among them, the camera 310 is used to collect information about the user or the environment; the projector 320 is used to project information onto the desktop or wall to realize a virtual screen; the microphone 330 is used to collect the voice commands of the user; the speaker 340 is used to give a voice response and provide clear sound quality.

[0070] The processor component (not shown in the figure) is arranged inside the stop block 230 to support AI interaction. For the voice input of the user, it is processed by the processor and the corresponding result is output, and finally it is output as voice through the speaker 340 or presented as graphics and text through the projector 320.

[0071] A learning seat of this embodiment can effectively improve the learning efficiency of the user by carrying an intelligent learning platform. However, it should be noted that the above-mentioned hardware part and processor component are both prior art.

[0072] On the basis of the above, the specific hardware configuration of the intelligent learning platform of the utility model is as follows:

[0073] 1) The camera 310 is a high-definition camera, which is used for collecting user facial expressions, gestures, surrounding environment and the like, and supports face recognition, motion capture and the like.

[0074] 2) The projector 320 is a miniature projector, which can project information to the surface of a desktop, a wall and the like, and realize virtual screen, AR interaction and the like.

[0075] 3) A high-fidelity loudspeaker is provided, which provides clear sound quality and supports voice broadcast, music playing, voice call and the like.

[0076] 4) A plurality of microphones 330 form a microphone array, which realizes far-field voice collection, noise reduction, echo cancellation and the like, and improves voice interaction experience.

[0077] 5) A sensor is further arranged, which includes a gravity sensor, a gyroscope and the like, and is used for sensing the posture of a seat, user action and the like.

[0078] On the basis of the above, the integrated pull rod seat of the utility model can realize part AI functions:

[0079] 1. Camera collection and projection

[0080] A. Face recognition, which recognizes user identity and automatically logs in personalized settings.

[0081] B. Motion capture, which recognizes user gestures and postures, and realizes over-the-air control, motion game and the like.

[0082] C. Environment sensing, which recognizes surrounding environment information such as light, objects and the like, and provides intelligent adjustment suggestions.

[0083] D. Virtual screen, which projects the screen content of a mobile phone, a computer and the like to the surface of a desktop, a wall and the like, and realizes large-screen experience.

[0084] E. AR interaction, which superimposes virtual information into a real scene, and realizes AR game, AR education and the like.

[0085] 2. Answer to question

[0086] A. Knowledge Q&A, which accesses a knowledge base such as a encyclopedia, a dictionary and the like, and answers various questions raised by a user.

[0087] B. Intelligent customer service, which provides 24-hour online customer service, and answers user questions.

[0088] C. Voice assistant, which controls seat functions, queries information, sets reminders and the like through voice instructions.

[0089] 3. Correction of papers and assignments

[0090] A. Image recognition, recognizing text, images, and other information on papers and assignments.

[0091] B. Automatic correction, automatically correcting objective questions based on pre-set answers and scoring standards.

[0092] C. Intelligent analysis, analyzing students' mistakes, generating learning reports, and providing personalized learning suggestions.

[0093] 4. Voice communication

[0094] A. Voice call, supporting high-definition voice call to realize remote communication.

[0095] B. Voice translation, supporting real-time translation of multiple languages to break down language barriers.

[0096] C. Voice notes, converting voice content into text in real time for easy recording and organization.

[0097] 5. Speaker externalization

[0098] A. Music playback, playing local or online music to provide immersive music experience.

[0099] B. Voice broadcast, broadcasting news, weather, schedule, and other information.

[0100] C. Alarm reminder, setting alarm reminders to remind users of important matters on time.

[0101] 6. Various functions and applications after accessing various AI large models

[0102] A. Personalized recommendation, recommending learning resources, entertainment content, and other content based on user interests, learning conditions, and other factors.

[0103] B. Intelligent writing, assisting users in writing, providing grammar checking, content optimization, and other functions.

[0104] C. Creative design, providing design inspiration, material recommendation, and other functions to assist users in creative design.

[0105] D. Emotional companionship, recognizing user emotions, providing emotional support, psychological counseling, and other services.

[0106] The integrated pull rod seat of the utility model can be applied to the following multiple scenes: 1) Education: intelligent tutoring, online classroom, assignment correction, etc.; 2) Office: remote meeting, voice translation, document processing, etc.; 3) Entertainment: motion game, AR interaction, music playback, etc.; 4) Home: smart home control, voice assistant, home entertainment, etc.

[0107] With the continuous development of AI technology, the head AI function of the integrated pull rod seat will be more abundant and intelligent, bringing users a more convenient, efficient and personalized experience.

[0108] The above describes the utility model and its embodiments in a schematic manner, and the description is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not designed creatively, and all should belong to the protection scope of the utility model.

Claims

1. A learning chair comprising a seat body (100) and a stop mechanism (200) arranged at the front side of the seat body (100); characterized in that: The stop mechanism (200) comprises, a fixed rod (210) for connecting with the seat body (100); a pull rod (220) slidingly sleeved in the fixed rod (210); a stop block (230) arranged at the top of the pull rod (220); and a locking assembly (240) arranged in the inner cavity of the pull rod (220); The locking assembly (240) comprises a connecting rod (241) and a locking block (242); one end of the connecting rod (241) is connected with a pressing block (243), the other end is connected with a pressing block (244), and a first elastic element (245) for vertically resetting the connecting rod (241) is sleeved on the connecting rod (241); the locking block (242) is provided with a limiting protrusion (2421) matched with the limiting hole on the fixed rod (210) and the pull rod (220), and a second elastic element (246) for transversely pressing the locking block (242); The locking block (242) is pressed by the second elastic element (246), so that the limiting protrusion (2421) thereon is clamped into the corresponding limiting hole; the limiting protrusion (2421) is transversely slid under the pressing of the pressing block (244), so that the limiting protrusion (2421) is separated from the corresponding limiting hole.

2. The learning chair of claim 1, wherein: The locking block (242) is provided with a pressing space (2422) for the pressing block (244) to extend into, and a pressure receiving surface (2423) for the pressing block (244) to press is arranged in the pressing space (2422), and the pressure receiving surface (2423) is an inclined surface.

3. A learning chair according to claim 2, characterized in that: An end surface of the pressing block (244) forms a pressing surface (2441), and the pressing surface (2441) is an inclined surface capable of being matched with the pressure receiving surface (2423).

4. A learning chair according to claim 3, characterized in that: The locking block (242) is provided with a containing groove (2424) away from the limiting protrusion (2421), one end of the second elastic element (246) is connected with the inner wall of the connecting rod (241), and the other end is clamped into the containing groove (2424).

5. A learning chair according to any one of claims 1-4, characterized in that: The stop block (230) comprises an upper shell and a lower shell connected with each other; the upper shell is provided with a mounting port (231) for clamping the pressing block (243), and the pressing block (243) is provided with a limiting ring (2431) matched with the mounting port (231); The lower shell is provided with a through hole (232) for the connecting rod (241) to pass through and a connecting section (233) for connecting with the pull rod (220).

6. A learning chair according to claim 5, characterized in that: The bottom of the pressing block (243) is provided with a first mounting groove (2432) for connecting the connecting rod (241) and a second mounting groove (2433) for clamping one end of the first elastic element (245); the lower shell is formed with a third mounting groove (234) for clamping the other end of the first elastic element (245).

7. The learning chair of claim 1, wherein: The seat body (100) comprises a seat surface (110), a seat back assembly (120) and a seat leg assembly (130); wherein the fixed rod (210) is arranged on the seat leg assembly (130), and the seat surface (110) is provided with a clamping groove (111) for clamping the stop block (230).

8. A learning chair according to claim 7, characterized in that: The seat back assembly (120) comprises a seat back (121) and connecting rods (122) arranged on both sides of the seat back (121); wherein the connecting rods (122) and the seat surface (110) are adjustably connected through adjusting rods (123), and are locked through locking nuts (124); the adjusting rods (123) are each provided with a bolt shaft (1231) on both sides, and the connecting rods (122) and the seat surface (110) are each provided with an adjusting hole (1221) for clamping the bolt shaft (1231).

9. A learning chair according to claim 8, characterized in that: The seat leg assembly (130) comprises a support seat (131) and two support legs (132) arranged on the support seat (131), and a cross rod (133) arranged between the two support legs (132); wherein the support legs (132) are each provided with a buckle (1321) at both ends, and the support seat (131) and the seat surface (110) are each provided with a clamping hole (1311) for clamping the buckle (1321).

10. A learning chair according to claim 9, characterized in that: The fixed rod (210) and the cross rod (133) are provided with a reinforcing rod (134), and the reinforcing rod (134) is connected with the fixed rod (210) and the cross rod (133) through clamping.

Citation Information

Patent Citations

  • Sitting posture adjusting device for preventing myopia

    CN214803279U

  • Child seat for preventing and controlling myopia

    CN220327183U