Student desk and chair with flip type seat plate

Abstract

The utility model relates to the technical field of desks and chairs, and discloses a student desk and chair with a flip type seat plate, which comprises a support, two armrests are fixedly mounted at the top of the support, and a seat plate body is arranged at the top of the support. According to the student desk and chair with the flip type seat plate, by arranging the transmission mechanism, when a user needs to have a rest, the seat plate body can freely rotate along the rotating rod by arranging the seat plate body, the rotating rod and a large bearing, and by arranging a large gear, a chain and a small gear, the small gear can be driven to rotate by power generated by rotation of the rotating rod; by arranging a transmission rod, an auxiliary gear, a rack, a small bearing, a sliding groove and a foot plate, the rotating force of the small gear can be transmitted to the auxiliary gear, so that the auxiliary gear is meshed with the rack, the rack and the foot plate slide out rightwards along the sliding groove, the foot plate can be pushed out while a seat plate is turned over through the transmission mechanism, and the situation that the foot plate is pulled out manually to be blocked is avoided; the afternoon nap of students is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of desks and chairs, in particular to a student desk and chair with a flip-up seat plate. Background Art

[0002] Desks and chairs are the desks and chairs used by students in class. They are a type of desks and chairs, also called student desks and chairs. The design of desks and chairs takes into account the students' comfort and learning efficiency. Students at different stages may need desks and chairs of different sizes and functions. The height of desks and chairs can usually be adjusted to meet the needs of different students. The materials include wood, plastic, and a combination of steel and wood. With the continuous development of desks and chairs, desks and chairs with various functions have emerged, such as a student desk and chair with a flip-up seat.

[0003] The desks and chairs with flip-up seats currently on the market are mainly modified for the stability of the desks and chairs. The existing desks and chairs are generally composed of a bracket, a seat, a footboard and a backboard. The seat is fixedly installed on the top of the bracket, and the backboard is fixedly installed on the side of the seat. The footboard is fixed on the outside of the bracket. The footboard is supported by the seat and the bracket, and the slidably installed footboard is pulled out to facilitate students to take a nap. However, the existing desks and chairs are prone to jamming when the footboard is pulled out, and it is not easy to find a handle at the bottom of the seat. Therefore, it is proposed to be able to push out the footboard while flipping the seat, so as to quickly turn the seat into a sleeping chair, which is convenient for students to take a nap. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a student desk and chair with a flip-up seat, which has the advantage of being able to push out the footboard while flipping the seat, avoiding the footboard from getting stuck when being manually pulled out, and being convenient for students to take a nap. It solves the problem that some desks and chairs are prone to getting stuck when the footboard is pulled out, and the handle is not easy to find at the bottom of the seat.

[0005] In order to achieve the above-mentioned purpose of being able to push out the footboard while flipping the seat board, avoiding the jam of manually pulling out the footboard, and facilitating students' naps, the utility model provides the following technical solutions: a student desk and chair with a flip-up seat board, comprising a bracket, two armrests are fixedly installed on the top of the bracket, a seat board body is arranged on the top of the bracket, a backrest is arranged on the left side of the bracket, and a transmission mechanism is arranged on the outside of the bracket;

[0006] The transmission mechanism includes a rotating rod, a large gear, a chain, a small gear, a transmission rod, an auxiliary gear, a rack, a foot plate and a protective shell. The rotating rod is fixedly installed on the outside of the seat body, the large gear is fixedly installed on the outside of the rotating rod, the large gear is meshed with a chain on the outside, the chain is meshed with a small gear on the outside, the transmission rod is fixedly installed on the inside of the small gear, the auxiliary gear is fixedly installed on the outside of the transmission rod, the rack is meshed with the outside of the auxiliary gear, the foot plate is fixedly installed on the top of the rack, and the inner wall of the bracket is fixedly installed with a protective shell.

[0007] Furthermore, a fixing plate is fixedly mounted on the inner wall of the bracket, and a sliding groove adapted to the foot plate is provided at the bottom of the fixing plate.

[0008] Furthermore, a large bearing is provided on the inner wall of the protective shell, and the rotating rod is movably connected to the protective shell via the large bearing.

[0009] Furthermore, a fixing rod is fixedly installed inside the protective shell, a small bearing is arranged outside the fixing rod, and the transmission rod is movably connected to the fixing rod via the small bearing.

[0010] Furthermore, the outside of the protective shell is provided with a through hole adapted to the rack and the foot plate.

[0011] Furthermore, a movable groove is provided on the outside of the bracket, a fixing column is arranged inside the movable groove, a clamping block is sleeved on the outside of the fixing column, and two clamping grooves adapted to the clamping block are provided on the outside of the seat plate body.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The student desk and chair with a flip-up seat is provided with a transmission mechanism. When the user needs to take a rest, the seat body, the rotating rod and the large bearing are provided, so that the seat body can rotate freely along the rotating rod. By providing a large gear, a chain and a small gear, the power of the rotating rod can drive the small gear to rotate. By providing a transmission rod, an auxiliary gear, a rack, a small bearing, a slide groove and a foot plate, the force of the small gear rotation can be transmitted to the auxiliary gear, so that the rack and the foot plate can slide to the right along the slide groove through the auxiliary gear meshing with the rack. The transmission mechanism can push out the foot plate while flipping the seat plate, so as to avoid the foot plate being stuck when being manually pulled out, which is convenient for students to take a nap. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0015] Figure 2 This is a front sectional view of the structure of the utility model;

[0016] Figure 3It is a partial three-dimensional diagram of the structure of the utility model.

[0017] In the figure: 1. bracket; 2. armrest; 3. seat body; 4. backrest; 5. transmission mechanism; 501. rotating rod; 502. large gear; 503. chain; 504. small gear; 505. transmission rod; 506. auxiliary gear; 507. rack; 508. foot board; 509. protective shell. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 In this embodiment, a student desk and chair with a flip-up seat board includes a bracket 1, two armrests 2 are fixedly installed on the top of the bracket 1, a seat board body 3 is arranged on the top of the bracket 1, a backrest board 4 is arranged on the left side of the bracket 1, and a transmission mechanism 5 is arranged outside the bracket 1;

[0020] The transmission mechanism 5 includes a rotating rod 501, a large gear 502, a chain 503, a small gear 504, a transmission rod 505, an auxiliary gear 506, a rack 507, a foot plate 508 and a protective shell 509. The rotating rod 501 is fixedly installed on the outside of the seat body 3, the large gear 502 is fixedly installed on the outside of the rotating rod 501, the chain 503 is meshed on the outside of the large gear 502, the small gear 504 is meshed on the outside of the chain 503, the transmission rod 505 is fixedly installed on the inside of the small gear 504, the auxiliary gear 506 is fixedly installed on the outside of the transmission rod 505, the rack 507 is meshed on the outside of the auxiliary gear 506, the foot plate 508 is fixedly installed on the top of the rack 507, and the protective shell 509 is fixedly installed on the inner wall of the bracket 1.

[0021] In the case implementation, a fixing plate is fixedly installed on the inner wall of the bracket 1, and a sliding groove adapted to the foot plate 508 is opened at the bottom of the fixing plate. By setting the fixing plate and the sliding groove, the foot plate 508 can slide stably along the sliding groove when sliding to the right, reducing shaking.

[0022] In the case implementation, a large bearing is provided on the inner wall of the protective shell 509, and the rotating rod 501 is movably connected to the protective shell 509 through the large bearing. By providing the large bearing, the rotating rod 501 can rotate freely without getting stuck.

[0023] In the case implementation, a fixing rod is fixedly installed inside the protective shell 509, a small bearing is arranged outside the fixing rod, and the transmission rod 505 is movably connected to the fixing rod through the small bearing. The fixing rod and the small bearing can fix the transmission rod 505 and make the transmission rod 505 rotate smoothly through the small bearing.

[0024] In the case implementation, a movable groove is provided on the outside of the bracket 1, a fixed column is provided inside the movable groove, a card block is sleeved on the outside of the fixed column, and two card slots matched with the card block are provided on the outside of the seat body 3. By providing the movable groove, the card block and the two card slots, the seat body 3 can be limited by the card block after the seat body 3 is flipped over, thereby preventing the seat body 3 from rotating when the user sits down, resulting in the seat being unusable.

[0025] When implementing, follow these steps:

[0026] 1) When the user needs to rest, the backrest 1 and the seat body 3 are rotated 90 degrees clockwise around the rotating rod 501, and the side with the seat cushion is rotated to the front;

[0027] 2) Then the seat body 3 drives the large gear 502 to rotate through the rotating rod 501, and the chain 503 pulls the small gear 504 to rotate synchronously, so that the auxiliary gear 506 drives the rack 507 to slide to the right;

[0028] 3) The rack 507 then drives the foot plate 508 to slide to the right along the slide groove to the bottom;

[0029] 4) Finally, the card block is rotated through the fixed column and is stuck in the card slot outside the seat body 3, and the students can rest on the student desks and chairs.

[0030] To summarize, the student desk and chair with a flip-up seat is provided with a transmission mechanism 5. When the user needs to take a rest, the seat body 3, the rotating rod 501 and the large bearing are provided, so that the seat body 3 can rotate freely along the rotating rod 501. By providing the large gear 502, the chain 503 and the small gear 504, the power of the rotating rod 501 can drive the small gear 504 to rotate. By providing the transmission rod 505, the auxiliary gear 506, the rack 507, the small bearing, the slide groove and the foot plate 508, the force of the small gear 504 rotating can be transmitted to the auxiliary gear 506, so that the rack 507 is engaged with the auxiliary gear 506, so that the rack 507 and the foot plate 508 slide to the right along the slide groove. The transmission mechanism 5 can push out the foot plate 508 while flipping the seat, so as to avoid the foot plate 508 being stuck when being manually pulled out, which is convenient for students to take a nap.

Claims

1. A student desk and chair with a flip-up seat, comprising a bracket (1), characterized in that: Two armrests (2) are fixedly mounted on the top of the bracket (1), a seat plate body (3) is arranged on the top of the bracket (1), a backrest plate (4) is arranged on the left side of the bracket (1), and a transmission mechanism (5) is arranged outside the bracket (1); The transmission mechanism (5) comprises a rotating rod (501), a large gear (502), a chain (503), a small gear (504), a transmission rod (505), an auxiliary gear (506), a rack (507), a foot plate (508) and a protective shell (509); the rotating rod (501) is fixedly mounted on the outside of the seat body (3); the large gear (502) is fixedly mounted on the outside of the rotating rod (501); the large gear (502) is meshed with the outside of the large gear (502); A chain (503), the chain (503) is meshed with a pinion (504) on the outside, a transmission rod (505) is fixedly installed inside the pinion (504), an auxiliary gear (506) is fixedly installed outside the transmission rod (505), a rack (507) is meshed with the outside of the auxiliary gear (506), a foot plate (508) is fixedly installed on the top of the rack (507), and a protective shell (509) is fixedly installed on the inner wall of the bracket (1).

2. A student desk and chair with a flip-up seat according to claim 1, characterized in that: A fixing plate is fixedly mounted on the inner wall of the bracket (1), and a sliding groove matching the foot plate (508) is provided at the bottom of the fixing plate.

3. A student desk and chair with a flip-up seat according to claim 1, characterized in that: The inner wall of the protective shell (509) is provided with a large bearing, and the rotating rod (501) is movably connected to the protective shell (509) via the large bearing.

4. A student desk and chair with a flip-up seat according to claim 1, characterized in that: A fixing rod is fixedly installed inside the protective shell (509), a small bearing is arranged outside the fixing rod, and the transmission rod (505) is movably connected to the fixing rod via the small bearing.

5. The student desk and chair with a flip-up seat according to claim 1, characterized in that: The outside of the protective shell (509) is provided with a through hole adapted to the rack (507) and the foot plate (508).

6. A student desk and chair with a flip-up seat according to claim 1, characterized in that: The bracket (1) is provided with a movable groove on the outside, a fixing column is arranged inside the movable groove, a clamping block is sleeved on the outside of the fixing column, and the seat plate body (3) is provided with two clamping grooves adapted to the clamping block on the outside.

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