A lunch chair with an angle that can be adjusted at will

Abstract

The utility model discloses a kind of angle can be arbitrarily adjusted lunch break class chair, belong to learning equipment technical field, including seat plate, leg support assembly, lifting base, driving handle, turnover assembly, lifting flap, backplate and gear structure, lifting base top surface is installed with seat plate, lifting base front end transmission connection has leg support assembly, lifting flap is connected with lifting base rear end by turnover assembly, turnover assembly side edge is connected with detachable driving handle, backplate is installed on lifting flap front surface, headrest is installed on backplate front end upper portion, gear structure is installed in turnover assembly. Solve the problem that the existing technology will have uncomfortable feeling in use due to the reclining effect of the reclining chair structure is not good and most of them do not set reclining function. Significantly improve the comfort in use.

Description

Technical Field

[0001] This utility model relates to the field of learning equipment technology, specifically to a lunch break chair with an adjustable angle. Background Technology

[0002] Currently, traditional school chair designs are primarily geared towards an upright sitting posture, lacking consideration for the needs of students during lunch breaks. Students often have to rest their heads on their desks during lunch breaks, which can easily cause discomfort in their cervical and lumbar spine. While some existing lunch break chairs have adjustable functions, most have limited adjustment ranges and cannot meet the personalized needs of users of different heights and body types.

[0003] Therefore, how to provide a lunch break chair with an adjustable angle to solve the defects in the existing chair structure is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] Therefore, this utility model provides a lunch break chair with an adjustable angle to solve the problem that existing reclining chairs have poor reclining effect and most do not have reclining function, which leads to discomfort during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a lunch break chair with an adjustable angle, comprising:

[0007] A lifting base with a seat plate installed on its top surface, and a leg support assembly connected to the front end of the lifting base via a transmission mechanism;

[0008] The lifting flap is connected to the rear end of the lifting base via a flipping component;

[0009] The flipping component is connected to a detachable drive handle on its side;

[0010] A back panel is installed on the front surface of the lifting flip plate, and a headrest is installed on the upper front part of the back panel;

[0011] A gear structure is installed in the flipping assembly.

[0012] In one possible implementation, the flipping component includes:

[0013] The driving component has connecting components on its left and right sides, and a connecting plug is installed on the front side of the connecting components.

[0014] An insertion hole is provided on the side of the connecting member, and a insert is flipped and connected inside the connecting member.

[0015] In one possible implementation, the driving component includes:

[0016] The drive rod has sleeves fitted on both ends;

[0017] The circular plates are arranged in pairs, with a hexagonal groove on the middle surface. The circular plates are fitted onto the drive rod, and a housing is installed between the two circular plates.

[0018] The clamps are arranged in pairs and fitted onto the outside of the sleeve head. The bottom of the insert is fitted onto the outside of the sleeve head. The gear structure is fitted onto the outside of the sleeve head. The insert and gear structure are arranged between the two clamps.

[0019] In one possible implementation, the gear structure includes:

[0020] The connecting disc has a circular toothed rack on its inner surface;

[0021] A circular disc has an insert plate fitted on its outer surface, and a gear fitted on the outer surface of the circular disc. The gear meshes with a circular rack. A slot is formed in the circular disc, which is far from the center of the circular disc, and the sleeve is inserted into the slot.

[0022] In one possible implementation, the drive handle includes:

[0023] The connector has a drive rod inserted into one end of its surface.

[0024] A connecting post is inserted onto the surface of the other end of the connector;

[0025] The casing is fitted onto the outside of the connecting post.

[0026] In one possible implementation, the swing range of the lifting flap is 90° to 180°.

[0027] In one possible implementation, the upper end of the lifting base is a connecting rod, the front end of the flipping component is inserted into the connecting rod, the bottom of the lifting flip plate is provided with a connector, an arc-shaped plate is installed on the bottom surface of the connector, the top of the flipping component is inserted into the connector, and several small holes are opened on the side wall of the connecting rod and the connector, and the flipping component is screwed and fixed to the connecting rod and the connector respectively.

[0028] This invention uses a gear structure in the flip assembly to drive the lifting flap to rotate freely between 90° and 180°. Due to the design of the gear structure, it can achieve a precise rotation of 1°. The movement of the gear structure is driven by the flip assembly, which in turn is driven by the drive handle. Thus, without the drive handle, the characteristics of the gear structure itself prevent the lifting flap from easily flipping without driving force, effectively improving the comfort of students when using the chair and reclining during lunch break. Attached Figure Description

[0029] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0030] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0031] Figure 1 A three-dimensional view of a lunch break chair with an adjustable angle provided by this utility model;

[0032] Figure 2 A perspective view of the gear structure provided for this utility model;

[0033] Figure 3 A perspective view of the flipping component provided by this utility model;

[0034] Figure 4 A perspective view of the driving component provided by this utility model;

[0035] Figure 5 A perspective view of the connecting disc provided by this utility model;

[0036] Figure 6 A perspective view of the drive handle provided for this utility model;

[0037] Figure 7 A perspective view of the connecting rod provided for this utility model;

[0038] In the diagram: 1. Seat; 2. Leg support assembly; 3. Lifting base; 31. Connecting rod; 4. Drive handle; 41. Drive rod; 42. Connector; 43. Connecting column; 44. Housing; 5. Flip assembly; 51. Connecting plug; 52. Socket; 53. Connecting component; 54. Insert; 55. Drive component; 551. Housing; 552. Circular plate; 553. Head; 554. Clamping plate; 555. Drive rod; 6. Lifting flip plate; 61. Arc plate; 62. Connector; 7. Back plate; 8. Gear structure; 81. Gear; 82. Circular rack; 83. Circular piece; 84. Connecting disc. Detailed Implementation

[0039] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] Please refer to Figures 1-7 The present invention discloses a lunch break chair with an adjustable angle, which consists of eight parts, as follows: Figures 1-2 It includes a seat 1, a leg support assembly 2, a lifting base 3, a drive handle 4, a flip assembly 5, a lifting flip plate 6, a back panel 7, and a gear structure 8. The seat 1 is installed on the top surface of the lifting base 3. The leg support assembly 2 is connected to the front end of the lifting base 3. The lifting flip plate 6 is connected to the rear end of the lifting base 3 through the flip assembly 5. The flip assembly 5 is connected to the side of a detachable drive handle 4. The back panel 7 is installed on the front surface of the lifting flip plate 6. A headrest is installed on the upper front end of the back panel 7. The gear structure 8 is installed in the flip assembly 5.

[0041] In use, this utility model first determines the depth to which the connecting plug 51 is inserted into the end of the connecting rod 31 based on the student's body shape data. Then, the small hole is aligned with the round hole on the connecting plug 51. After alignment, the fastening bolt is inserted and the nut is used to connect the flip assembly 5 to the lifting base 3. This method of fixing the flip assembly 5 to the lifting base 3 with bolts can be customized according to the student's body shape. For example, if the insertion depth of the connecting plug 51 is shallow, it can accommodate students with longer legs, allowing more of their thighs to rest on the surface of the seat board 1, thus improving comfort during use. After connecting the flip assembly 5 to the lifting base 3, the lifting flip plate 6 is taken over, and the connector 62 at the bottom of the lifting flip plate 6 is aligned with the insert 54. Then, the insertion depth of the insert 54 in the connector 62 is determined again according to the student's body shape. After determining the position, the connection between the flip assembly 5 and the lifting flip plate 6 is completed by using the fastening bolt and nut. This adjustable setting method can increase the contact area between the back panel 7 and the student's back, thus providing a better support effect. When students need to take a lunch break or adjust the angle between the lifting flap 6 and the lifting base 3, they insert the drive rod 41 end of the drive handle 4 into the sleeve 553, then hold the sleeve 44 and rotate the drive handle 4. The rotation of the drive handle 4 drives the sleeve 553 to rotate, which in turn causes the drive rod 555 to rotate, thus causing the other end of the sleeve 553 to rotate. During the rotation of the sleeve 553, since the sleeve 553 is inserted into a slot offset from the center of the circular piece 83, this installation position allows the sleeve 553 and the circular piece 83 to form an eccentric wheel structure. Meanwhile, the circular rack 82... The diameter of the gear 81 is larger than that of the gear 81. During use, only a small part of the gear 81 on the disc 83 can mesh with the circular rack 82. When the meshing part moves along the circular rack 82, it will also cause the insert 54 on the disc 83 to rotate. The transmission of the insert 54 will cause the lifting flap 6 to deflect, so that the lifting flap 6 can rotate precisely between 90° and 180°. Since it is gear driven, the rotation accuracy can reach 1°, making it more comfortable for students to use the chairs. At the same time, the chairs in the whole class have the same structure, so the drive handle 4 has the same structure, which also makes it easy to store and manage.

[0042] In a specific embodiment, such as Figure 3The flipping assembly 5 includes a connecting plug 51, a socket 52, a connecting member 53, a insert 54, and a driving member 55. Connecting members 53 are located on the left and right sides of the driving member 55. A connecting plug 51 is installed on the front of the connecting member 53. The socket 52 is located on the side of the connecting member 53. An insert 54 is flipped and connected inside the connecting member 53. The connecting plug 51 is used to connect to the lifting base 3, while the insert 54 is used to connect to the lifting flip plate 6. The socket 52 is used to place a sleeve 553. The surface of the sleeve 553 that connects to the driving handle 4 is flush with the outer surface of the socket 52.

[0043] In a specific embodiment, such as Figure 4 The driving component 55 includes a housing 551, a circular plate 552, a sleeve 553, a clamping plate 554, and a driving rod 555. The sleeves 553 are fitted onto the two ends of the driving rod 555. The circular plates 552 are arranged in pairs, with a hexagonal groove on their middle surfaces. The circular plates 552 are fitted onto the driving rod 555. The housing 551 is installed between the two circular plates 552. The clamping plates 554 are arranged in pairs and fitted onto the outside of the sleeves 553. The bottom of the insert 54 is fitted onto the outside of the sleeves 553. The gear structure 8 is fitted onto the outside of the sleeves 553. The insert 54 and the gear structure 8 are arranged between the two clamping plates 554. The hexagonal groove on the circular plate 552 is used to mate with the hexagonal shape of the drive rod 555, which can be used to drive the circular plate 552 and the outer shell 551 to rotate. The outer shell 551 is designed to prevent the drive rod 555 from being damaged. The sleeve 553 is used to connect the drive rod 555 and the drive insert 41. The hexagonal groove in the sleeve 553 can better drive the drive rod 555 to rotate. The clamp 554 can ensure that the gear 81 and the circular rack 82 are engaged together to prevent disengagement. At the same time, the outer shell 551 can also be used to determine whether the drive rod 555 is rotating normally.

[0044] In a specific embodiment, such as Figure 5 The gear structure 8 includes a gear 81, a circular rack 82, a disc 83, and a connecting disk 84. The circular rack 82 is formed on the inner surface of the connecting disk 84. A insert 54 is fitted on the outer surface of the disc 83, and the gear 81 is fitted on the outer surface of the disc 83. The gear 81 meshes with the circular rack 82. A slot is formed in the disc 83, which is far from the center of the disc 83. A sleeve 553 is inserted into the slot. Because the slot is far from the center of the disc 83, the disc 83 is an eccentric wheel. When the disc 83 rotates, only a part of the gear 81 meshes with the circular rack 82. This method causes the insert 54 to rotate. Due to the meshing of the gear 81 and the circular rack 82, the insert 54 will not easily rotate without the driving force of the drive handle 4, thus fixing the angle between the lifting flap 6 and the lifting base 3.

[0045] In a specific embodiment, such as Figure 6The drive handle 4 includes a drive rod 41, a connector 42, a connecting post 43, and a sleeve 44. The drive rod 41 is inserted into one end of the connector 42, the connecting post 43 is inserted into the other end of the connector 42, and the sleeve 44 is fitted over the connecting post 43. The drive rod 41 is a hexagonal post. Each drive handle 4 has the same structure. Therefore, to prevent students from arbitrarily adjusting their chair angles during class and affecting students behind them, the drive handles 4 are usually collected when no adjustment is needed and distributed when required. There is no need to worry about the distributed drive handles being unable to adjust the chair. Furthermore, the chair adjustment can only be driven by the drive handle 4, thus preventing mischievous students from arbitrarily adjusting their chairs.

[0046] In one specific embodiment, the lifting flap 6 swings from 90° to 180°.

[0047] In a specific embodiment, such as Figure 7 The upper end of the lifting base 3 is a connecting rod 31. The front end of the flipping assembly 5 is inserted into the connecting rod 31. The bottom of the lifting flip plate 6 is provided with a connector 62. An arc-shaped plate 61 is installed on the bottom surface of the connector 62. The top of the flipping assembly 5 is inserted into the connector 62. Several small holes are opened on the side walls of the connecting rod 31 and the connector 62. The flipping assembly 5 is screwed and fixed to the connecting rod 31 and the connector 62 respectively. The arc-shaped plate 61 is used to match the circular structure of the connecting component 53 and can produce a certain dustproof effect to prevent dust from affecting the movement of the gear structure 8.

[0048] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A lunch break chair with an adjustable angle, characterized in that, include: The lifting base (3) has a seat plate (1) installed on its top surface, and the front end of the lifting base (3) is connected to a leg support assembly (2). The lifting flap (6) is connected to the rear end of the lifting base (3) via the flipping component (5); The flipping assembly (5) has a detachable drive handle (4) connected to its side; A back panel (7) is installed on the front surface of the lifting flip plate (6), and a headrest is installed on the upper front end of the back panel (7); The gear structure (8) is installed in the flipping assembly (5).

2. The lunch break chair with an adjustable angle as described in claim 1, characterized in that, The flipping component (5) includes: The driving component (55) has connecting components (53) on its left and right sides, and a connecting plug (51) is installed on the front side of the connecting component (53); A socket (52) is provided on the side of the connecting member (53), and a insert (54) is flipped and connected inside the connecting member (53).

3. The lunch break chair with an adjustable angle as described in claim 2, characterized in that, The driving component (55) includes: The drive rod (555) has sleeves (553) on both ends; A pair of circular plates (552) are arranged with a hexagonal groove on the middle surface. The circular plates (552) are sleeved on the drive rod (555), and a housing (551) is installed between the two circular plates (552). The clamping plates (554) are arranged in pairs and are fitted on the outside of the sleeve (553). The bottom of the insert (54) is fitted on the outside of the sleeve (553). The gear structure (8) is fitted on the outside of the sleeve (553). The insert (54) and the gear structure (8) are arranged between the two clamping plates (554).

4. The lunch break chair with an adjustable angle as described in claim 3, characterized in that, The gear structure (8) includes: A connecting disc (84) has a circular toothed rack (82) on its inner surface; A circular piece (83) has the insert (54) fitted on its outer surface. A gear (81) is fitted on the outer surface of the circular piece (83). The gear (81) meshes with a circular rack (82). A slot is opened in the circular piece (83). The slot is far from the center of the circular piece (83). The sleeve (553) is inserted into the slot.

5. The lunch break chair with an adjustable angle as described in claim 1, characterized in that, The drive handle (4) includes: The connector (42) has a drive rod (41) inserted into one end of its surface; A connecting post (43) is inserted into the surface of the other end of the connector (42); The casing (44) is fitted onto the outside of the connecting post (43).

6. The lunch break chair with an adjustable angle as described in claim 1, characterized in that, The swing range of the lifting flap (6) is 90° to 180°.

7. The lunch break chair with an adjustable angle as described in claim 1, characterized in that, The upper end of the lifting base (3) is a connecting rod (31), the front end of the flipping component (5) is inserted into the connecting rod (31), the bottom of the lifting flip plate (6) is provided with a connector (62), an arc plate (61) is installed on the bottom surface of the connector (62), the top of the flipping component (5) is inserted into the connector (62), several small holes are opened on the side walls of the connecting rod (31) and the connector (62), and the flipping component (5) is screwed and fixed to the connecting rod (31) and the connector (62) respectively.

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