Row seat capable of adjusting height and area of seat plate

Abstract

The utility model discloses a row seat capable of adjusting height and area of a seat plate, which relates to the technical field of row seats and comprises a fixing frame, a table plate is arranged on the rear side of the fixing frame, a supporting arm and the seat plate are arranged on the front side of the fixing frame, the seat plate is rotatably connected with the supporting arm, a plurality of inserting holes are formed in the fixing frame in the vertical direction, and the inserting holes are communicated with the table plate. The front end of the seat plate is rotatably connected with an extension plate, the bottom surface of the seat plate is provided with a sliding sleeve, the sliding sleeve is internally provided with a sliding rod, the sliding rod is in sliding connection with the sliding sleeve in the front-back linear direction, and the sliding rod is used for supporting the extension plate in the horizontal state. The height and the area of the seat plate can be adjusted, and using comfort and flexibility are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of row seats, in particular to a row seat with adjustable seat plate height and area. Background Art

[0002] Row seats are commonly used in lecture halls, auditoriums, lecture halls and other places. Currently, row seats include a fixed frame, a table board is installed on the rear side of the fixed frame, and a support arm and a seat board are installed on the front side of the fixed frame. The seat board is rotatably connected to the support arm. When the user sits down, the seat board needs to be turned down to a horizontal state; when the user walks between two adjacent rows of row seats, the seat board needs to be turned upward to prevent the seat board from hindering the user's walking.

[0003] The following problems exist when the row seats are actually used:

[0004] First, because the height of the seat plate is not adjustable, the user cannot adjust the height of the seat plate according to his or her own height and body shape, which reduces the user's comfort and flexibility.

[0005] Second, because there needs to be enough space between two adjacent rows of seats for users to walk, when users sit on the seat, the distance between the body and the table is large, which makes it inconvenient for users to write on the table. In this regard, since the area of ​​the seat cannot be adjusted, users can only move their bodies forward and let their buttocks sit on a small part of the seat to get their bodies closer to the table. Since the contact area between the buttocks and the seat is reduced, users need to expend more lower limb strength to support their bodies, which reduces the user's comfort.

[0006] Therefore, how to adjust the height and area of ​​the seat plate to improve the user's comfort and flexibility is a technical problem that needs to be solved at present. Utility Model Content

[0007] In view of the above-mentioned deficiencies in the prior art, the utility model provides a row of seats with adjustable seat height and area. The utility model can adjust the seat height and area to improve the comfort and flexibility of use.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A row of seats with adjustable seat height and area, comprising a fixed frame, a table board is provided on the rear side of the fixed frame, a support arm and a seat board are provided on the front side of the fixed frame, the seat board is rotatably connected to the support arm, the fixed frame is provided with a plurality of sockets in the vertical direction, a socket is provided at the rear end of the support arm, the socket is plugged and matched with the socket, an extension plate is rotatably connected to the front end of the seat board, a sliding sleeve is provided on the bottom surface of the seat board, a sliding rod is provided inside the sliding sleeve, the sliding rod is slidably connected to the sliding sleeve along a front-rear straight line direction, and the sliding rod is used to support the extension plate in a horizontal state.

[0010] Furthermore, the socket includes a horizontal cavity and a vertical cavity that are connected, the vertical cavity is arranged at the lower part of the horizontal cavity, and the socket includes a horizontal part and a vertical part that are connected, the vertical part is arranged at the lower part of the rear end of the horizontal part, the horizontal part is plugged into the horizontal cavity, and the vertical part is plugged into the horizontal cavity and the vertical cavity in turn.

[0011] Furthermore, a gripping portion is provided at the front end of the slide rod, a limiting portion is provided at the rear end of the slide rod, and the sliding sleeve is provided between the gripping portion and the limiting portion.

[0012] Furthermore, a first ear plate is provided at the front end of the bottom surface of the seat plate, and a second ear plate is provided at the rear end of the bottom surface of the extension plate. The first ear plate is rotatably connected to the second ear plate via a pin shaft.

[0013] Furthermore, a rotating hole is provided on the support arm, and two fan-shaped holes are symmetrically provided on the outer circumference of the rotating hole, and the fan-shaped hole is provided with a horizontal surface and an inclined surface. A rotating seat is provided on the bottom surface of the seat plate, and a rotating shaft is provided on the rotating seat. The rotating shaft rotates with the rotating hole, and two stop parts are symmetrically provided on the side wall of the rotating shaft. One stop part is provided in a fan-shaped hole. When the stop part abuts against the horizontal surface of the fan-shaped hole, the seat plate is in a horizontal state, and when the stop part abuts against the inclined surface of the fan-shaped hole, the seat plate is in a state of tilting against the fixed frame.

[0014] Furthermore, the front bottom of the fixing frame is connected with a pedal via a horizontal telescopic mechanism.

[0015] The utility model has the beneficial effects:

[0016] 1. In the present invention, when the socket is inserted into a higher socket, the seat plate can be raised; when the socket is inserted into a lower socket, the seat plate can be lowered; when the extension plate is turned to a horizontal state and the slide bar is supported under the extension plate, the extension plate increases the area of ​​the seat plate; when the extension plate is rotated downward, the area of ​​the seat plate can be restored. Therefore, the present invention can adjust the height and area of ​​the seat plate, which is convenient for users to adjust and use according to their needs, and improves the comfort and flexibility of use.

[0017] 2. The utility model is simple to operate when adjusting the height and area of ​​the seat plate, which is beneficial to improving the adjustment efficiency.

[0018] 3. The setting of the gripping part provides an operating position for the user to push and pull the slide bar, which is convenient for the user to push and pull the slide bar. The setting of the limiting part can prevent the slide bar from detaching from the sliding sleeve, thereby improving the reliability of use.

[0019] 4. When the horizontal telescopic mechanism is extended, it allows the user to put his feet on the pedals so that his feet are raised, which is convenient for blood circulation in the user's lower limbs, relaxes the legs and improves comfort.

[0020] 5. When the horizontal telescopic mechanism is shortened, the pedals are stored to prevent users from tripping over the pedals when walking between two adjacent rows of seats, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Embodiment 1 is a three-dimensional structure of a row of seats with adjustable seat height and area. Figure 1 ;

[0022] Figure 2 Embodiment 1 is a three-dimensional structure of a row of seats with adjustable seat height and area. Figure 2 ;

[0023] Figure 3 Embodiment 1 is a three-dimensional structure of a row of seats with adjustable seat height and area. Figure 3 ;

[0024] Figure 4 It is a bottom view of a row of seats with adjustable seat height and area according to Embodiment 1;

[0025] Figure 5 This is a front view of a row of seats with adjustable seat height and area in Example 1;

[0026] Figure 6 It is a partial structural schematic diagram of a row of seats with adjustable seat height and area according to Embodiment 1;

[0027] Figure 7 Embodiment 2 is a three-dimensional structure of a row of seats with adjustable seat height and area. Figure 1 ;

[0028] Figure 8 Embodiment 2 is a three-dimensional structure of a row of seats with adjustable seat height and area. Figure 2 ;

[0029] Fig. 9 This is a front view of a row of seats with adjustable seat height and area according to Example 2.

[0030] Description of reference numerals:

[0031] 1-fixed frame, 11-supporting rod, 12-horizontal cavity, 13-vertical cavity,

[0032] 2-Table board,

[0033] 3-support arm, 31-horizontal part, 32-vertical part, 33-rotation hole, 34-fan-shaped hole, 341-horizontal surface, 342-inclined surface,

[0034] 4-seat plate, 41-rotating seat, 42-rotating shaft, 43-stop portion, 44-first ear plate, 45-sliding sleeve, 46-sliding rod, 461-gripping portion, 462-limiting portion,

[0035] 5- extension plate, 51- second ear plate, 52- pin shaft,

[0036] 6- Scissor mechanism,

[0037] 7- Pedals. DETAILED DESCRIPTION

[0038] In order to better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings. It is worth noting that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] Embodiment 1:

[0040] like Figure 1-Figure 6 As shown, a row of chairs with adjustable seat height and area includes a fixing frame 1, a table top 2, a support arm 3, a seat 4, and an extension board 5.

[0041] A support rod 11 is welded and fixed to the upper rear part of the fixing frame 1, and the table top 2 is fixedly mounted on the support rod 11 by bolts. In this embodiment 1, the table top 2 is provided with two layers, and the space between the two layers of the table top 2 forms a drawer, which is convenient for users to place their belongings.

[0042] The fixing frame 1 is provided with a plurality of sockets in the vertical direction. The sockets include a horizontal cavity 12 and a vertical cavity 13 which are connected to each other, and the vertical cavity 13 is provided at the lower part of the horizontal cavity 12. The support arm 3 is provided at the front side of the fixing frame 1, and a socket is welded and fixed at the rear end of the support arm 3. The socket includes a horizontal portion 31 and a vertical portion 32, and the vertical portion 32 is provided at the lower part of the rear end of the horizontal portion 31, and the horizontal portion 31 and the vertical portion 32 are an integrated structure.

[0043] The operation of assembling the support arm 3 and the fixing frame 1 is as follows: first, the user moves the support arm 3 backward so that the horizontal portion 31 and the vertical portion 32 are inserted into the horizontal cavity 12 together; then, the user moves the support arm 3 downward so that the vertical portion 32 is inserted downward into the vertical cavity 13, and the assembly of the support arm 3 and the fixing frame 1 is completed.

[0044] When the support arm 3 and the fixing frame 1 are in an assembled state, the vertical portion 32 is blocked by the cavity wall of the vertical cavity 13 and cannot move horizontally, and the horizontal portion 31 is supported by the lower cavity wall of the horizontal cavity 12 and cannot move downward, thereby preventing the support arm 3 from moving horizontally or downward.

[0045] The operation of disassembling the support arm 3 and the fixing frame 1 is as follows: first, the user lifts the support arm 3 so that the vertical portion 32 moves upward out of the vertical cavity 13; then, the user moves the support arm 3 forward so that the vertical portion 32 and the horizontal portion 31 move out of the horizontal cavity 12, and the disassembly of the support arm 3 and the fixing frame 1 is completed.

[0046] The support arm 3 is provided with a rotation hole 33, and two fan-shaped holes 34 are symmetrically provided on the outer periphery of the rotation hole 33, and the fan-shaped hole 34 is provided with a horizontal surface 341 and an inclined surface 342. The seat plate 4 is provided at the front side of the fixing frame 1, and a rotation seat 41 is welded and fixed to the bottom surface of the seat plate 4, and a rotation shaft 42 is welded and fixed to the rotation seat 41, and the rotation shaft 42 is rotationally matched with the rotation hole 33, and two stop portions 43 are symmetrically provided on the side wall of the rotation shaft 42, and the stop portions 43 are welded and fixed to the rotation shaft 42, and one stop portion 43 is provided in one fan-shaped hole 34.

[0047] When the stopper 43 abuts against the horizontal surface 341 of the fan-shaped hole 34, the seat plate 4 is in a horizontal state; when the stopper 43 abuts against the inclined surface 342 of the fan-shaped hole 34, the seat plate 4 is in a state of tilting against the fixed frame 1. When the rotating shaft 42 rotates clockwise, the seat plate 4 can be adjusted from a horizontal state to a state of tilting against the fixed frame 1; when the rotating shaft rotates counterclockwise, the seat plate 4 can be adjusted from a state of tilting against the fixed frame 1 to a horizontal state. When the seat plate 4 is in a horizontal state, the user can sit down; when the seat plate 4 is in a state of tilting against the fixed frame 1, the user can walk between two adjacent rows of row seats, and the seat plate 4 will not hinder the user from walking.

[0048] A first ear plate 44 is welded and fixed to the front end of the bottom of the seat plate 4, an extension plate 5 is arranged at the front end of the seat plate 4, a second ear plate 51 is welded and fixed to the rear end of the bottom of the extension plate 5, and the first ear plate 44 is rotatably connected to the second ear plate 51 through a pin shaft 52.

[0049] The bottom surface of the seat plate 4 is welded and fixed with a sliding sleeve 45, and a sliding rod 46 is arranged inside the sliding sleeve 45. The sliding rod 46 is slidably connected with the sliding sleeve 45 along the front-back straight line direction. A gripping portion 461 is arranged at the front end of the sliding rod 46, and a limiting portion 462 is arranged at the rear end of the sliding rod 46. The gripping portion 461, the limiting portion 462 and the sliding rod 46 are an integrated structure, and the sliding sleeve 45 is arranged between the gripping portion 461 and the limiting portion 462. The provision of the gripping portion 461 provides an operating position for the user to push and pull the sliding rod 46, which is convenient for the user to push and pull the sliding rod 46. The provision of the limiting portion 462 can prevent the sliding rod 46 from detaching from the sliding sleeve 45, thereby improving the reliability of use.

[0050] The working principle of this embodiment 1 is:

[0051] (1) When the height of the seat plate 4 needs to be raised: the user removes the socket from the socket at the current height and inserts the socket into a socket at a higher height to raise the height of the socket. Because the socket is fixedly installed with the support arm 3, the height of the support arm 3 is raised. Because the seat plate 4 is rotatably connected to the support arm 3, the height of the seat plate 4 is raised.

[0052] After the height of the seat plate 4 is adjusted, it can lift users with shorter stature, and in terms of vertical height, it can allow the users to be closer to the table top 2, thereby improving the comfort of users with shorter stature.

[0053] (2) When the height of the seat plate 4 needs to be lowered: the user removes the socket from the socket at the current height and inserts the socket into a socket at a lower height to lower the height of the socket. Because the socket is fixedly installed with the support arm 3, the height of the support arm 3 is lowered. Because the seat plate 4 is rotatably connected to the support arm 3, the height of the seat plate 4 is lowered.

[0054] After the height of the seat plate 4 is lowered, it can lower a user with a taller stature, and in terms of vertical height, it can allow the user to be further away from the table top 2, thereby improving the comfort of use for users with a taller stature.

[0055] (3) When the area of ​​the seat plate 4 needs to be increased: the user turns the extension plate 5 upward to a horizontal state, and then pulls the slide bar 46 to the bottom of the extension plate 5, and uses the slide bar 46 to support the extension plate 5 in the horizontal state. At this time, the extension plate 5 increases the area of ​​the seat plate 4, and when the user sits down, the extension plate 5 and the seat plate 4 can be supported together.

[0056] (4) When the area of ​​the seat plate 4 needs to be restored: the user pushes the slide bar 46 to move the slide bar 46 away from the bottom of the extension plate 5; then, the user rotates the extension plate 5 downward. At this time, when the user sits down, he can only be supported by the seat plate 4.

[0057] It can be seen from the above introduction that the present embodiment 1 can realize the adjustment of the height and area of ​​the seat plate 4, so that the user can adjust the seat plate 4 according to the needs, thereby improving the comfort and flexibility of use.

[0058] Furthermore, when adjusting the height and area of ​​the seat plate 4, the present embodiment 1 is simple to operate, which is beneficial to improving the adjustment efficiency.

[0059] Embodiment 2:

[0060] This embodiment 2 is further improved on the basis of embodiment 1:

[0061] like Figure 7-Figure 9 As shown, the front bottom of the fixing frame 1 is connected with a pedal 7 through a horizontal telescopic mechanism. The horizontal telescopic mechanism can adopt a scissor mechanism 6, which is a prior art.

[0062] The working principle of this embodiment 2 is:

[0063] When the user wants to raise his feet, he can pull the pedal 7 forward, and the pedal 7 pulls the scissor mechanism 6 to extend until the pedal 7 is moved to a suitable position. When the user sits on the seat 4, he can put his feet on the pedal 7, and his feet are raised, which is convenient for blood circulation in the user's lower limbs, relaxes the legs, and improves comfort.

[0064] When the pedal 7 is not needed, the user can push the pedal 7 backwards, and the pedal 7 pushes the scissor mechanism 6 to shorten, so that the pedal 7 can be stored, preventing the user from being tripped by the pedal 7 when walking between two adjacent rows of seats, thereby improving safety.

[0065] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A row of seats with adjustable seat height and area, comprising a fixed frame, a table board is provided at the rear side of the fixed frame, a support arm and a seat are provided at the front side of the fixed frame, the seat is rotatably connected to the support arm, and is characterized in that: The fixing frame is provided with a plurality of sockets in the vertical direction, the rear end of the supporting arm is provided with a socket, the socket is plugged into and matched with the socket, the front end of the seat plate is rotatably connected with an extension plate, the bottom surface of the seat plate is provided with a sliding sleeve, the interior of the sliding sleeve is provided with a sliding rod, the sliding rod is slidably connected with the sliding sleeve along a front-to-back straight direction, and the sliding rod is used to support the extension plate in a horizontal state.

2. A row of seats with adjustable seat height and area according to claim 1, characterized in that: The jack includes a horizontal cavity and a vertical cavity that are connected, and the vertical cavity is arranged at the lower part of the horizontal cavity. The socket includes a horizontal part and a vertical part that are connected, and the vertical part is arranged at the lower part of the rear end of the horizontal part. The horizontal part is plugged into the horizontal cavity, and the vertical part is plugged into the horizontal cavity and the vertical cavity in turn.

3. A row of seats with adjustable seat height and area according to claim 2, characterized in that: The front end of the slide rod is provided with a gripping portion, the rear end of the slide rod is provided with a limiting portion, and the sliding sleeve is arranged between the gripping portion and the limiting portion.

4. A row of seats with adjustable seat height and area according to claim 3, characterized in that: A first ear plate is provided at the front end of the bottom surface of the seat plate, and a second ear plate is provided at the rear end of the bottom surface of the extension plate. The first ear plate is rotatably connected to the second ear plate through a pin shaft.

5. A row of seats with adjustable seat height and area according to claim 4, characterized in that: The support arm is provided with a rotating hole, and two fan-shaped holes are symmetrically provided on the outer circumference of the rotating hole, and the fan-shaped hole is provided with a horizontal surface and an inclined surface. The bottom surface of the seat plate is provided with a rotating seat, and the rotating seat is provided with a rotating shaft, which rotates with the rotating hole, and two stop parts are symmetrically provided on the side wall of the rotating shaft, and one stop part is provided in a fan-shaped hole. When the stop part abuts against the horizontal surface of the fan-shaped hole, the seat plate is in a horizontal state, and when the stop part abuts against the inclined surface of the fan-shaped hole, the seat plate is in a state of tilting and leaning against the fixed frame.

6. A row of seats with adjustable seat height and area according to any one of claims 1 to 5, characterized in that: The front bottom of the fixing frame is connected with a pedal via a horizontal telescopic mechanism.

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