Office chair with folding table plate

Abstract

The utility model discloses an office chair with a folding table plate, which comprises folding chair legs, a seat plate rotatably connected to the folding chair legs through pin shafts and a backrest arranged on the folding chair legs, and guide rail strips are transversely arranged on the back of the backrest; a guide sliding block is arranged in the guide rail strip, a protruding shaft is fixed to the end of the guide sliding block and sleeved with a sleeve, a rib rod is fixed to the end of the outer wall of the sleeve, and a table board is fixed to the rib rod. A right-angle fan-shaped groove is formed in the inner wall of the sleeve, a limiting protruding block is fixed to the protruding shaft, and the limiting protruding block is located in the right-angle fan-shaped groove. And the sleeve rotates on the convex shaft, so that the table plate and the backrest are parallel or vertical. The folding table is reasonable in structural arrangement, the table top can be folded on the back face of the backrest or unfolded to be located above the seat plate according to needs, and the folding table is convenient to use, beneficial for saving space and facilitating packaging and transportation operation, meanwhile beneficial for improving use convenience, high in applicability and good in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of office furniture, and in particular relates to an office chair with a foldable table board. Background Art

[0002] An office chair is a chair used for the convenience of work in daily work and social activities. It is generally composed of legs, a seat, a backrest and armrests. The seat is horizontally fixed on the legs, the backrest is fixed on the seat, and the armrests are fixed on the seat for the user to protect their hands. Although it can meet the general usage needs, in actual application, its entire structure is fixed and installed, and it is mostly used with a desk. It takes up a large space and is not conducive to packaging and transportation. It has great limitations on use, which will affect its convenience of use to a certain extent and limit its practicality. Utility Model Content

[0003] The utility model aims to provide an office chair with a foldable table top which has a reasonable structure and is conducive to improving the convenience of use.

[0004] The technical solution to achieve the purpose of the utility model is an office chair with a folding table, comprising folding chair legs, a seat plate rotatably connected to the folding chair legs through a pin shaft, and a backrest arranged on the folding chair legs, wherein a guide rail is arranged transversely on the back of the backrest;

[0005] A guide slider is arranged in the guide rail, a convex shaft is fixed at the end of the guide slider, a sleeve is sleeved on the convex shaft, a rib rod is fixed at the end of the outer wall of the sleeve, and a table top is fixed on the rib rod;

[0006] A right-angled sector-shaped groove is arranged on the inner wall of the sleeve, a limiting convex block is fixed on the convex shaft, and the limiting convex block is located in the right-angled sector-shaped groove;

[0007] The sleeve rotates on the convex shaft to make the table top and the backrest parallel or vertical.

[0008] Further preferably, limit stops are arranged at both ends of the guide rail, and the guide slide block is arranged between the limit stops.

[0009] It is further preferred that: the folding chair legs include a fixed leg and a folding leg rotatably connected to the fixed leg via an axle;

[0010] The fixed foot is rotatably connected to a limit block via a shaft, the folding foot is provided with a limit convex column, and the end of the limit block is provided with an n-shaped slot;

[0011] The folding legs are unfolded through the shaft and the fixed legs and are limited in position through the limiting clamping block.

[0012] It is further preferred that: the cross section of the guide rail is dovetail-shaped or T-shaped;

[0013] The cross-sectional shape of the guide sliding block matches the cross-sectional shape of the guide rail.

[0014] It is further preferred that: a avoiding groove is provided at the bottom of the backrest, and when the seat plate is flattened with the pin shaft as the center, the rear part of the seat plate is in the avoiding groove and the top surface abuts against the upper limit of the top wall of the avoiding groove.

[0015] It is further preferred that: the sleeve and the rib rod are both metal structures.

[0016] When it is in the normal state, the rib rod drives the table top to be in the vertical state, and moves the guide slider on the guide rail. At this time, the table top is vertical and attached to the back of the backrest, and at this time, the limiting protrusion presses against one end of the right-angle fan-shaped groove;

[0017] When the table top is needed, move the guide slider outward so that the table top is completely extended from the edge of the backrest, and then rotate the sleeve to make the table top and the rib rod perpendicular to the backrest. At this time, the limit protrusion presses against the upper limit at the other end of the right-angle fan-shaped groove, and then the guide slider is translated and reset on the guide rail. At this time, the table top will gradually enter the top of the seat plate to realize the table top function.

[0018] The utility model has positive effects: the structure of the utility model is reasonably arranged, and the desktop can be folded on the back of the backrest or opened above the seat plate as needed, which is not only convenient to use, but also helps to save space, facilitate packaging and transportation operations, and also helps to improve the convenience of use, strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the desktop and the backrest when they are folded in the utility model;

[0022] Figure 3 It is a schematic diagram of the specific structure of the tabletop, the slider and the rib rod in the utility model.

[0023] Figure numerals: folding chair leg 1, fixed leg 1-1, shaft body 1-2, folding leg 1-3, limit block 1-4, limit convex column 1-5, N-shaped slot 1-6, shaft rod 1-7, seat plate 2, backrest 3, guide rail 4, guide slider 5, convex shaft 6, sleeve 7, rib rod 8, table board 9, right-angle fan-shaped groove 10, limit convex block 11, limit block 12, avoidance groove 13, pin shaft 14. DETAILED DESCRIPTION

[0024] 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.

[0025] Example

[0026] See Figures 1 to 3 As shown, an office chair with a folding table top comprises a folding chair leg 1, a seat plate 2 rotatably connected to the folding chair leg through a pin 14, and a backrest 3 arranged on the folding chair leg, and a guide bar 4 is transversely arranged on the back of the backrest; in this embodiment, the seat plate and the backrest are conventional structures of the prior art, which are simply applied, and in actual application, the cross section of the guide bar is dovetail or T-shaped;

[0027] Meanwhile, in actual application, a guide slider 5 is provided in the guide rail, and the cross-sectional shape of the guide slider matches the cross-sectional shape of the guide rail. Moreover, a convex shaft 6 is fixed at the end of the guide slider, a sleeve 7 is sleeved on the convex shaft, a rib 8 is fixed at the end of the outer wall of the sleeve, and a table board 9 is fixed on the rib; the sleeve and the rib are both metal structures. The length of the rib can be processed and set as needed, generally 1 / 2-2 / 3 of the length of the seat, that is, when the table board is in use, the human body can sit between the backrest and the table board.

[0028] At the same time, in order to improve the stability and reliability of use, a right-angled fan-shaped groove 10 is provided on the inner wall of the sleeve, and a limiting protrusion 11 is fixed on the convex shaft, and the limiting protrusion is located in the right-angled fan-shaped groove; the sleeve rotates on the convex shaft to make the table top parallel or perpendicular to the backrest. Through the right-angled fan-shaped groove and the limiting protrusion, when the table top is folded behind the backrest, the table top will not rotate or move, and after opening, the table top will not rotate or shift downward, which is conducive to improving the stability and reliability of use.

[0029] In actual application, the two ends of the guide rail are provided with limit stops 12, and the guide slide block is arranged between the limit stops. The limit stops can prevent the guide slide block from falling due to transitional displacement, thereby improving the stability and reliability of use.

[0030] In actual application, the folding chair leg comprises a fixed leg 1-1 and a folding leg 1-3 rotatably connected to the fixed leg through an axle 1-2; the fixed leg is rotatably connected to a limit block 1-4 through an axle 1-7, a limit convex column 1-5 is provided on the folding leg, and an n-shaped groove 1-6 is provided at the end of the limit block; when opening, the folding leg is unfolded with the fixed leg through the axle and is limited by the limit block. The above structure can ensure the stability and reliability of the position after opening.

[0031] The bottom of the backrest is provided with an avoidance groove 13, and when the seat plate is flattened with the pin as the center, the rear part of the seat plate is in the avoidance groove and the top surface abuts against the upper limit of the top wall of the avoidance groove. When a person sits on the seat plate, the seat plate position validity can be ensured, which is conducive to improving the riding comfort.

[0032] When it is in the normal state, the rib rod drives the table top to be in the vertical state, and moves the guide slider on the guide rail. At this time, the table top is vertical and attached to the back of the backrest, and at this time, the limiting protrusion presses against one end of the right-angle fan-shaped groove;

[0033] When the table top is needed, move the guide slider outward so that the table top is completely extended from the edge of the backrest, and then rotate the sleeve to make the table top and the rib rod perpendicular to the backrest. At this time, the limit protrusion presses against the upper limit at the other end of the right-angle fan-shaped groove, and then the guide slider is translated and reset on the guide rail. At this time, the table top will gradually enter the top of the seat plate to realize the table top function.

[0034] The utility model has positive effects: the structure of the utility model is reasonably arranged, and the desktop can be folded on the back of the backrest or opened above the seat plate as needed, which is not only convenient to use, but also helps to save space, facilitate packaging and transportation operations, and also helps to improve the convenience of use, strong applicability and good practicality.

[0035] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification can also be directly processed according to existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. An office chair with a folding table top, comprising a folding chair leg, a seat rotatably connected to the folding chair leg through a pin, and a backrest arranged on the folding chair leg, characterized in that: A guide rail is disposed laterally on the back of the backrest; A guide slider is arranged in the guide rail, a convex shaft is fixed at the end of the guide slider, a sleeve is sleeved on the convex shaft, a rib rod is fixed at the end of the outer wall of the sleeve, and a table top is fixed on the rib rod; A right-angled sector-shaped groove is arranged on the inner wall of the sleeve, a limiting convex block is fixed on the convex shaft, and the limiting convex block is located in the right-angled sector-shaped groove; The sleeve rotates on the convex shaft to make the table top and the backrest parallel or vertical.

2. An office chair with a foldable table top according to claim 1, characterized in that: Limit blocks are arranged at both ends of the guide rail, and the guide slide block is arranged between the limit blocks.

3. The office chair with a foldable table top according to claim 1, characterized in that: The folding chair legs include a fixed leg and a folding leg rotatably connected to the fixed leg via an axle; The fixed foot is rotatably connected to a limit block via a shaft, the folding foot is provided with a limit convex column, and the end of the limit block is provided with an n-shaped slot; The folding legs are unfolded through the shaft and the fixed legs and are limited in position through the limiting clamping block.

4. The office chair with a foldable table top according to claim 1, characterized in that: The cross section of the guide rail is dovetail-shaped or T-shaped; The cross-sectional shape of the guide sliding block matches the cross-sectional shape of the guide rail.

5. The office chair with a foldable table top according to claim 1, characterized in that: The bottom of the backrest is provided with an avoidance groove. When the seat plate is flattened with the pin shaft as the center, the rear part of the seat plate is in the avoidance groove and the top surface abuts against the upper wall of the avoidance groove to limit the position.

6. The office chair with a foldable table top according to claim 1, characterized in that: The sleeve and the rib rod are both metal structures.

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