Seat table plate connecting device and seat

Abstract

The utility model discloses a seat table plate connecting device and a seat, and the seat table plate connecting device comprises a mounting base and a mounting assembly, the mounting base comprises a first plate body, a second plate body arranged opposite to the first plate body, a third plate body connected between the first plate body and the second plate body and a mounting shaft connected to the outer side of the first plate body or the second plate body or the third plate body, and the mounting shaft is used for being connected with the table plate supporting frame. The first plate body, the second plate body and the third plate body surround to form a containing groove, the mounting assembly comprises an adjusting shaft and a jacking part connected to the adjusting shaft, the jacking part is arranged in the containing groove, and the jacking part and the first plate body are arranged in a spaced mode to form a clamping channel used for being clamped on a mounting frame on a seat. According to the seat table plate connecting device, the table plate supporting frame and the seat upper mounting frame can be quickly mounted or dismounted through the seat table plate connecting device, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a seat field especially relates to a seat table board connecting device and seat. BACKGROUND

[0002] At present, the seat such as e-sports chair, office chair has been widely used in people's life and work, along with people's life and work quality requirement unceasingly improving, the demand of seat function is also increasingly diversified, especially in some need using desktop to write, office, dining or placing article etc. The scene under operation, the seat with table board is particularly important.

[0003] Prior art discloses a utility model (announcement number: CN2762655Y) with the computer chair structure improvement of collapsible table board, its table board and seat armrest are connected through two-section single pivot structure, two-section single pivot structure includes the armrest section fixedly connected through a plurality of screws with seat armrest outside, the trackball arranged in armrest section end, the table board section fixedly connected with table board side, the ball shell body arranged in table board section end, trackball is accommodated in ball shell body and can tumble along ball shell body, the passenger can make ball shell body tumble relative to trackball through table board and make table board switch between the use state of horizontal arrangement in seat armrest front side and the storage state of vertical storage in seat armrest outside by force.

[0004] In the above technical scheme, since two ends of two-section single pivot structure are fixedly connected with seat armrest and seat table board respectively, user cannot quickly detach seat table board from seat in some occasions where seat table board is not needed, which brings inconvenience to people. SUMMARY

[0005] The utility model provides a seat table board connecting device and seat in the prior art's deficiency, can realize the quick installation or disassembly between table board support frame and seat upper mounting frame through this seat table board connecting device, and the practicality is strong.

[0006] The technical scheme adopted by the utility model is:

[0007] The application relates to a seat table plate connecting device which comprises a mounting base and a mounting assembly, the mounting base comprises a first plate body, a second plate body arranged opposite to the first plate body, a third plate body connected between the first plate body and the second plate body, and a mounting shaft connected outside the first plate body, the second plate body or the third plate body, the mounting shaft is used for being connected with a table plate support frame, the first plate body, the second plate body and the third plate body surround a containing groove, and one side of the containing groove arranged opposite to the third plate body and two sides of the containing groove arranged adjacent to the third plate body are provided as open mouths which are communicated with each other; the mounting assembly comprises an adjusting shaft and a pressing piece connected on the adjusting shaft, the pressing piece is arranged in the containing groove and is arranged spaced apart from the first plate body to form a clamping channel used for being clamped on a mounting frame on a seat, a positioning hole is provided through the second plate body, the adjusting shaft is arranged in the positioning hole and is threadedly connected with the positioning hole, and the adjusting shaft can be moved along the positioning hole to adjust the distance between the pressing piece and the first plate body.

[0008] Preferably, the width of the first plate body, the second plate body and the third plate body is less than 5mm different from the outer diameter of the mounting shaft.

[0009] Preferably, the width of the first plate body, the second plate body and the third plate body is the same as the outer diameter of the mounting shaft.

[0010] Preferably, a joint part is formed between the mounting shaft and the outer wall of the first plate body, the second plate body or the third plate body, and the mounting shaft is combined with the outer wall of the first plate body, the second plate body or the third plate body into an integral structure through the joint part.

[0011] Preferably, the joint part is arranged between the end face of the mounting shaft and the outer wall of the first plate body, the second plate body or the third plate body, or the joint part is arranged between the side face of the mounting shaft and the outer wall of the first plate body, the second plate body or the third plate body.

[0012] Preferably, the mounting shaft is provided as a cylindrical structure, the table plate support frame comprises a cylindrical structure which is correspondingly arranged on the cylindrical structure, and the table plate support frame is sleeved with the mounting shaft through the cylindrical structure extending into the cylindrical structure.

[0013] Preferably, the table plate support frame further comprises a support column connected with the cylindrical structure, the support column is coaxially arranged with the cylindrical structure, and the end face of the support column close to the cylindrical structure protrudes from the side face of the cylindrical structure to form a limiting face used for abutting against the end face of the cylindrical structure away from the joint part, or the support column is provided as upper and lower two sections which are relatively rotatably connected along the axis of the mounting shaft.

[0014] Preferably, the mounting base is made of metal material and is provided as an integral structure, and the first plate body and the second plate body are respectively formed by bending two ends of the third plate body.

[0015] The utility model also provides a seat, including main body structure, at least one armrest structure and be used for supporting armrest structure's armrest frame, table board structure and be used for supporting table board structure's table board frame, and as above seat table board connecting device, main body structure includes be used for the seat member of the passenger to sit, table board support frame sets up as table board frame, and the mounting bracket sets up as the partial structure of main body structure or sets up as the partial structure of armrest frame.

[0016] Preferably, the armrest frame includes a first support connected to the main body structure, a second support connected to the first support at a lower end, and a third support in liftable connection with the second support, the armrest structure being connected to an upper end of the third support, the mounting bracket being provided as a partial structure of the first support and arranged at a side of the seat member; the mounting shaft is arranged to extend upward in a vertical direction, the table board frame including a lower support arm connected to the mounting shaft at a lower end, a connecting support connected to the table board structure, and an upper support arm arranged between the connecting support and the lower support arm, the upper support arm including an upper arm body and a first connecting member and a second connecting member vertically rotatably connected to two ends of the upper arm body respectively, the connecting support being connected to the first connecting member, the second connecting member being horizontally rotatably connected to an upper end of the lower support arm, the table board structure being capable of being kept in a use state horizontally arranged above the armrest structure by the table board frame or kept in a storage state vertically stored outside the armrest structure by the table board frame, and being capable of being switched between the use state and the storage state at different heights by deformation of the table board frame when a force is applied to the table board structure.

[0017] The utility model reaches the beneficial effect that:

[0018] The seat table plate connecting device provided by the utility model is provided with the mounting shaft for being connected with the table plate support frame outside the first plate body or the second plate body or the third plate body of the mounting base, so that the mounting base, the table plate support frame and the table plate connected with the table plate support frame can be installed and dismounted as a whole relative to the mounting frame on the seat, and when installing, the mounting frame on the seat is arranged in the clamping channel by inserting the mounting base into the containing groove along the each opening, the adjusting shaft is rotated relative to the positioning hole to drive the top pressing piece to move axially along the positioning hole to the direction close to the first plate body, the distance between the top pressing piece and the first plate body is reduced, the mounting frame on the seat is fastened and clamped between the top pressing piece and the first plate body to realize the quick installation of the table plate support frame, when dismounting, the adjusting shaft is rotated relative to the positioning hole to drive the top pressing piece to move axially along the positioning hole to the direction away from the first plate body, the distance between the top pressing piece and the first plate body is increased, the mounting frame on the seat is extended out of the clamping channel and the containing groove along the each opening to realize the quick dismounting of the table plate support frame, so that the quick installation and dismounting of the table plate are realized, the operation is simple and convenient, the mounting or dismounting can be selectively carried out according to the use requirement, the practicability is high, the threaded connection is arranged, the clamping channel can be adapted to the fastening and clamping of the seat mounting frame with different thicknesses, and the application range is wide.

[0019] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the utility model, constitute a part of the present application, the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation on the utility model.In the drawings,

[0021] Figure 1 It is the structure schematic view of seat table plate connecting device of an embodiment of the utility model.

[0022] Figure 2 It is the exploded structure schematic view of seat table plate connecting device of an embodiment of the utility model.

[0023] Figure 3 It is the structure schematic of seat of an embodiment of the utility model Figure 1 .

[0024] Figure 4 It is the structure schematic of seat of an embodiment of the utility model Figure 2 .

[0025] Figure 5 It is the partial structure exploded schematic view of seat of an embodiment of the utility model.

[0026] Figure 6 Structure diagram of the seat of an embodiment of the present application Figure 3 .

[0027] Figure 7 Structure diagram of the seat of an embodiment of the present application Figure 4 .

[0028] Figure 8 Structure diagram of the seat of an embodiment of the present application Figure 5 . DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on 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 device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. Those of ordinary skill in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0032] In the utility model, unless another definite provision and limit, first feature is "on" or "under" second feature can include that first and second features are direct contact, also can include that first and second features are not direct contact, but contact through other feature between them. Moreover, first feature "on", "above" and "on" second feature include that first feature is directly above and obliquely above second feature, or only indicate that first feature horizontal height is higher than second feature. First feature "under", "below" and "under" second feature include that first feature is directly below and obliquely below second feature, or only indicate that first feature horizontal height is less than second feature.

[0033] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the common meaning in the field of the utility model. The "first", "second" and similar words used in the utility model patent application specification and claims do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar words also do not represent quantity limitation, but represent the existence of at least one.

[0034] As Figure 1 , Figure 2As shown, as an embodiment of the utility model provides a kind of seat table board connecting device 100, including installation base 10 and installation component 20, installation base 10 includes first plate body 101, second plate body 102 is arranged opposite with first plate body 101, third plate body 103 is connected between first plate body 101 and second plate body 102, and installation shaft 104 is connected on the outside of first plate body 101, and installation shaft 104 is used to be connected with table board support frame 30.First plate body 101, second plate body 102, third plate body 103 are formed around containing groove, and the side of containing groove is arranged opposite with third plate body 103, and the two sides adjacent to third plate body 103 are set as open mouth that intercommunicate.Installation component 20 includes adjusting shaft 201 and top pressure piece 202 connected on adjusting shaft 201, and top pressure piece 202 is arranged in containing groove, and is arranged with first plate body 101 interval to form the clamping channel for clamping on the mounting bracket 40 of seat, and second plate body 102 is provided with positioning hole 1021, and adjusting shaft 201 is threaded into positioning hole 1021, and is connected with positioning hole 1021, and can be moved along positioning hole 1021 to adjust the distance between top pressure piece 202 and first plate body 101.The seat table board connecting device 100 of the embodiment, since the installation shaft 104 for being connected with table board support frame 30 is arranged on the outside of the first plate body 101 of installation base 1, so that installation base 10 and table board support frame 30 and the table board connected with table board support frame 30 can be installed and disassembled as a whole relative to mounting bracket 40 on seat, and when installing, mounting bracket 40 on seat is inserted into containing groove along each open mouth by installation base 10 and is arranged in clamping channel, and the adjusting shaft 201 is rotated relative to positioning hole 1021 to drive top pressure piece 202 to move axially along positioning hole 1021 towards first plate body 101, i.e. the distance between top pressure piece 202 and first plate body 101 can be reduced, so that mounting bracket 40 on seat is fastened and clamped between top pressure piece 202 and first plate body 101 to realize the quick installation of table board support frame 40, and when disassembling, the adjusting shaft 201 is rotated relative to positioning hole 1021 to drive top pressure piece 202 to move axially along positioning hole 1021 away from first plate body 101, i.e. the distance between top pressure piece 202 and first plate body 101 can be increased, so that mounting bracket 40 on seat is stretched out of clamping channel and containing groove along each open mouth to realize the quick disassembly of table board support frame 40, so that the quick installation and disassembly of table board are realized, and it is simple and convenient to operate, and can be selectively installed or disassembled according to use needs, and it is practical, and the setting of threaded connection makes that clamping channel can be adapted to the fastening and clamping of seat mounting bracket 40 of different thickness, and the application range is wide.Of course, in other embodiments, the installation shaft 104 can also be connected on the outside of second plate body 102 or third plate body 103.

[0035] In some embodiments, the difference between the width of the first plate body 101, the second plate body 102, and the third plate body 103 and the outer diameter of the mounting shaft 104 is less than 5 mm, so that the mounting base 10 can be installed in a narrow space while ensuring that the mounting shaft 104 and the first plate body 101 can be stably connected, and the mounting base 10 is convenient to arrange on the mounting frame 40 on the seat. In the present embodiment, the width of the first plate body 101, the second plate body 102, and the third plate body 103 is the same as the outer diameter of the mounting shaft 104, so that the mounting base 10 occupies a narrower space and is more conducive to installation in a narrow space.

[0036] As shown in Figure 2 In some embodiments, the mounting shaft 104 and the outer wall of the first plate body 101 form a joint 105, and the mounting shaft 104 is integrated with the outer wall of the first plate body 101 through the joint 105, so that the mounting shaft 104 is stably connected to the first plate body 101 and is not easy to fall off, and the durability of the mounting base 10 is better, prolonging the service life of the mounting base 10. Of course, in other embodiments in which the mounting shaft 104 is connected to the second plate body 102 or the third plate body 103, the joint 105 is formed between the mounting shaft 104 and the outer wall of the second plate body 102 or the third plate body 103, and is integrated with the outer wall of the second plate body 102 or the third plate body 103.

[0037] In some embodiments, the joint 105 is arranged between the end surface of the mounting shaft 104 and the outer wall of the first plate body 101, so that the mounting shaft 104 is connected perpendicularly to the first plate body 101, and when the seat table plate connecting device 100 is clamped on the mounting frame 40 of the seat, the mounting shaft 104 can be arranged perpendicularly to the mounting frame 40. In other embodiments, the joint 105 can also be arranged between the side surface of the mounting shaft 104 and the outer wall of the first plate body 101, or in some embodiments in which the mounting shaft 104 is connected to the second plate body 102 or the third plate body 103, the joint 105 is arranged between the end surface of the mounting shaft 104 and the outer wall of the second plate body 102 or the third plate body 103, or the joint 105 is arranged between the side surface of the mounting shaft 104 and the outer wall of the second plate body 102 or the third plate body 103. In the present embodiment, the mounting frame 40 on the seat can be provided as a plate body structure to increase the contact area between the mounting frame and the first plate body 101, so as to improve the stability of the table plate installation. In other embodiments, the mounting frame 40 on the seat can also be provided as a flat tube structure or a circular tube structure or other structures, and in this case, the inner wall of the first plate body 101 and / or the pressing member 202 is preferably provided as an arc-shaped structure matching the mounting frame 40, so as to improve the stability of the connection.

[0038] In some specific embodiments, the mounting shaft 104 is provided as a cylindrical structure, and the table plate support frame 30 includes a cylindrical structure 5111 corresponding to the cylindrical structure, and the table plate support frame 30 is positioned in the cylindrical structure through the cylindrical structure 5111, and is tightly connected with the mounting shaft 104, and is not easy to shake.

[0039] As shown in Figure 2 In some specific embodiments, the table plate support frame 30 further includes a support column 5112 connected with the cylindrical structure 5111, the support column 5112 is coaxially arranged with the cylindrical structure 5111, and an end surface of the support column 5112 close to the cylindrical structure 5111 protrudes from the side surface of the cylindrical structure 5111 to form a limiting surface 5110 for abutting against an end surface of the cylindrical structure away from the connecting part 105, so that after the cylindrical structure 5111 is inserted into the cylindrical structure, the cylindrical structure 5111 can abut against the end surface of the cylindrical structure away from the connecting part 105 through the limiting surface 5110, thereby limiting and supporting the table plate support frame 30 on the end surface of the cylindrical structure away from the connecting part 105, and enabling the table plate support frame 30 to stably rotate around the axis of the mounting shaft 104 relative to the mounting shaft 104. In other embodiments, the cylindrical structure 5111 and the mounting shaft 104 can be fixedly connected or provided as an integrated structure, and the support column 5112 can be provided as two upper and lower sections rotatably connected with each other along the axis of the mounting shaft 104, or the mounting shaft 104 can be provided as two upper and lower sections rotatably connected with each other along the axis of the mounting shaft 104, and all of them can enable the table plate support frame 30 to rotate around the axis of the mounting shaft 104 relative to the mounting shaft 104.

[0040] In some specific embodiments, the mounting base 10 is made of metal materials such as iron, aluminum and steel, and has a solid and durable structure, and the mounting base 10 is provided as an integrated structure, the mounting shaft 104 is fixedly welded with the first plate body 101, and the connecting part 105 is formed by a welding part. The first plate body 101 and the second plate body 102 are respectively formed by bending the two ends of the third plate body 103, and have a simple structure and are convenient for production and processing.

[0041] As shown in Figures 2-8As shown, as another embodiment of the utility model, still provide a kind of seat, including main structure 1, armrest structure 2, the armrest frame 3 for supporting armrest structure 2, table board structure 4, the table board frame 5 for supporting table board structure 4, and the seat table board connecting device 100 provided by the utility model. Main structure 1 includes the seat member 11 for being used for passenger to ride. Table board support frame 30 is set as table board frame 5, and mounting bracket 40 is set as part structure of armrest frame 3. The seat of this embodiment, since the seat table board connecting device 100 provided by the utility model is used, therefore table board structure 4, table board frame 5 and seat table board connecting device 100 can be as a whole relative armrest frame 3 Quick installation and disassembly, easy to operate, can selectively install or disassemble according to the need of use, and practicality is strong.In other embodiments, the mounting bracket 40 can also be set as part structure of main structure 1, so that table board structure 4, table board frame 5 and seat table board connecting device 100 can be as a whole relative main structure 1 Quick installation and disassembly.

[0042] As Figure 3As shown, in some embodiments, the armrest structure 3 comprises a first support 31 connected with the main body structure 1, a second support 32 connected with the first support 31 at a lower end, and a third support 33 connected with the second support 32 in a liftable manner, the armrest structure 2 is connected on an upper end of the third support 33, the mounting bracket 40 is arranged as a partial structure of the first support 31 and is arranged beside the seat member 11. The mounting shaft 104 is arranged extending upward in a vertical direction, the table board bracket 5 comprises a lower support arm 51 connected with the mounting shaft 104 at a lower end, a connecting support 53 connected with the table board structure 4, and an upper support arm 52 arranged between the connecting support 53 and the lower support arm 51, the upper support arm 52 comprises an upper arm body and a first connecting piece 521 and a second connecting piece 522 vertically rotatably connected with two ends of the upper arm body respectively, the connecting support 53 is connected with the first connecting piece 521, and the second connecting piece 522 is horizontally rotatably connected with an upper end of the lower support arm 51, the table board structure 4 can be kept in a use state horizontally arranged above the armrest structure 2 by the table board bracket 5 or kept in a storage state vertically stored outside the armrest structure 2 by the table board bracket 5, and the table board structure 4 can be switched between the use state and the storage state at different heights by deformation of the table board bracket 5 when force is applied to the table board structure 4. When the table board structure 4 needs to be stored, the occupant can push the table board structure 4 outward by rotating the arm to drive the second connecting piece 522 of the upper support arm 52 to rotate outward horizontally relative to the upper end of the lower support arm 51, and at the same time, push the table board structure 4 downward by rotating the arm to drive the upper arm body of the upper support arm 52 to swing downward vertically relative to the first connecting piece 521 and the second connecting piece 522, so as to switch the table board structure 4 to the storage state vertically stored outside the armrest structure, and keep the table board structure 4 in the storage state by the deformed table board bracket 5. The occupant can pull the table board structure 4 upward by rotating the arm to drive the upper arm body of the upper support arm 52 to swing upward vertically relative to the first connecting piece 521 and the second connecting piece 522, and at the same time, pull the table board structure 4 inward by rotating the arm to drive the second connecting piece 522 of the upper support arm 52 to rotate inward horizontally relative to the upper end of the lower support arm 51, so as to switch the table board structure 4 to the use state horizontally arranged above the armrest structure 2, and keep the table board structure 4 in the use state by the deformed table board bracket 5. The force application direction is more ergonomic, and it is convenient for the table board structure 4 to be quickly and flexibly switched between the use state and the storage state, thereby improving the experience.

[0043] In some embodiments, the lower end of the lower support arm 51 is arranged spaced apart from the front side of the seat member 11 to form a seat front portion 111 on the seat member 11 in front of the lower end of the lower support arm 51, the upper side of the seat front portion 111 and the lower support arm 51 form a moving space for the legs of the occupant to move into the moving space around the seat member 11 when the table top structure 4 is in the use state or the storage state, the moving space expands the leg moving area around the seat member 11, can accommodate more sitting postures of the occupant, further improves the comfort of the occupant in use, and further improves the experience.

[0044] In some embodiments, an open space A is formed around the bottom of the armrest structure 2 and the front side of the armrest frame 3 for the table top frame 5 to rotate. The lower end of the lower support arm 51 is arranged in the open space A and can rotate horizontally relative to the seat table board connecting device 100 about the first longitudinal axis a1, and the upper end is arranged in front of the armrest structure 2. When the table top structure 4 rotates about the first longitudinal axis a1 to the side of the seat member 11, the lower support arm 51 can be driven by the upper support arm 52 to rotate outward about the first longitudinal axis a1 relative to the seat table board connecting device 100 to the outside of the armrest structure 2, so as to avoid the upper end of the lower support arm 51 and the upper support arm 52 being interfered by the armrest structure 2 when the table top structure 4 is switched between the use state and the storage state, and to make the structure arrangement between the seat table board connecting device 100, the lower support arm 51, the armrest structure 2, the armrest frame 3 and the seat member 11 compact.

[0045] As Figure 5As shown, in some embodiments, the lower support arm 51 comprises a first arm 511 arranged along a first longitudinal axis a1, a second arm 512 arranged along a second longitudinal axis a2, and a diagonal arm 513 connected between the upper end of the first arm 511 and the lower end of the second arm 512, and the cylindrical structure 5111 and the support column 5112 are arranged on the first arm 511. The second longitudinal axis a2 is arranged parallel to the first longitudinal axis a1 and on a different axis. The first arm 511 is arranged in the open space A and is horizontally rotatably connected to the seat table board connecting device 100 along the first longitudinal axis a1. The second connecting piece 512 is horizontally rotatably connected to the upper end of the second arm 512 along the second longitudinal axis a2 and can rotate with the lower support arm 51 relative to the seat table board connecting device 100 around the first longitudinal axis a1 between the front side and the outer side of the armrest structure 2, so that the structure of the lower support arm 51 is more adapted to the structure of the armrest frame 3 and the armrest structure 2, and the structure arrangement is more compact. In this embodiment, the first support 31 is arranged spaced apart from the front side of the seat member 11, so that the first arm 511 connected to the first support 31 by the seat table board connecting device 100 is arranged spaced apart from the seat front portion 111. In order to ensure that the depth of the activity space can adapt to more postures of the occupant, the front-to-back width of the seat front portion 111 can be set to be greater than 10 cm. When the second connecting piece 512 is rotated to be arranged on the front side of the armrest structure 2, part or all of the structure of the diagonal arm 513 is arranged above and spaced apart from the upper side of the seat front portion 111 to form a first activity space B for the occupant's legs to extend into when the table board structure 4 is in the use state. When the second connecting piece 512 is rotated to be arranged on the outer side of the armrest structure 2, a second activity space C can be formed between the front side of the lower support arm 51 and the upper side of the seat front portion 111 for the occupant's legs to extend into when the table board structure 4 is in the storage state. Both the first activity space B and the second activity space C can expand the leg activity area around the seat member 11 to adapt to more sitting postures of the occupant, further improving the comfort and experience of the occupant. In this embodiment, the first support 31 is arranged as a plate structure in the horizontal direction to ensure that the mounting shaft 104 can be arranged along the first longitudinal axis a1 when the seat table board connecting device 100 is clamped on the first support 31. The upper end of the first arm 511 is arranged higher than the upper side of the seat front portion 111, so that the diagonal arm 513 is entirely above the upper side of the seat front portion 111 from its upper end to its lower end. On the one hand, it can ensure that the diagonal arm 513 is not interfered by the seat member 11 when the lower support arm 51 rotates relative to the seat table board connecting device 100 around the first longitudinal axis a1. On the other hand, it increases the height of the first activity space B and the second activity space C, further expanding the leg activity area around the seat member 11.In addition, the lower end of the lower support arm 51 is connected to the mounting shaft 104, which is conducive to increasing the height of the first and second movement spaces B and C, and further expanding the leg movement area around the seat member 11.

[0046] As shown in Figure 7 some embodiments, the handrail structure 2 has a support surface 21 on the upper side for supporting the table plate structure, and the table plate structure 4 can be placed on the upper side of the support surface 21 when in use. The support surface 21 of the handrail structure 2 and the support base 532 of the table plate frame 5 jointly support the table plate structure 4, greatly enhancing the load-bearing capacity of the table plate structure 4 and preventing it from shaking. This allows the arms of the occupant and objects such as keyboards and books to be stably supported. In addition, the upper side of the table plate structure 4 and the top surface of the handrail structure 2 jointly support the arms of the occupant, increasing the contact area between the table plate structure 4 or the handrail structure 2 and the occupant's arms, further improving the comfort of the occupant's use and enhancing the experience. Furthermore, when the table plate structure 4 is in use, the force exerted on the table plate structure 4 causes it to move upward or downward, which in turn causes the upper arm body of the upper support arm 52 to rotate vertically relative to the first and second connecting members 521 and 522 to adjust the height at which the table plate structure 4 is placed on the upper side of the support surface 21. The deformed table plate frame 5 keeps the table plate structure 4 in this height state, allowing the height of the table plate structure 4 to be adjusted flexibly according to the height of the support surface 21 of the handrail structure 2. The table plate structure 4 can be placed on the upper side of the support surface 21 at multiple different heights, ensuring that the table plate structure 4 can be stably supported by the support surface 21 of the handrail structure 2 and the support base 532 of the table plate frame 5 at different heights. This accommodates differences in height, weight, posture, and usage habits among different occupants, improves the comfort of the occupant's use, enhances the experience, and allows the table plate structure 4 to be switched between different height states and storage states and kept in each state through the deformation of the table plate frame 5, making it very flexible and convenient to use.

[0047] As shown in Figure 3 some embodiments, the main body structure 1 further includes a backrest member 12 arranged on the rear side of the seat member 11 for the occupant to lean against, and a base member 13 for supporting the seat member 11 away from the surface of the ground or other medium. The mounting frame 40 can also be part of the backrest member 12 or the base member 13.

[0048] Finally, it should be noted that the above examples are used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0049] In summary, the above is only a preferred embodiment of the present application, and any changes and modifications made within the scope of the present application should be included in the scope of the present application.

Claims

1. A seat table connecting device, characterized by, The installation base comprises a first plate body, a second plate body arranged opposite to the first plate body, a third plate body connected between the first plate body and the second plate body, and an installation shaft connected outside the first plate body, the second plate body or the third plate body, the installation shaft being used for being connected with a table plate support frame, the first plate body, the second plate body and the third plate body surround to form a containing groove, and a side of the containing groove arranged opposite to the third plate body and two sides of the containing groove arranged adjacent to the third plate body are arranged to be communicated with each other. The installation assembly comprises an adjusting shaft and a pressing piece connected to the adjusting shaft, the pressing piece is arranged in the containing groove and is arranged to be spaced apart from the first plate body to form a clamping channel for being clamped on the installation frame on the seat, and a positioning hole is arranged through the second plate body, the adjusting shaft is arranged in the positioning hole and is threadedly connected with the positioning hole, and the adjusting shaft can move along the positioning hole to adjust the distance between the pressing piece and the first plate body. The difference between the width of the first plate body, the second plate body and the third plate body and the outer diameter of the installation shaft is less than 5 mm.

2. The seat table linkage arrangement of claim 1, wherein: The width of the first plate body, the second plate body and the third plate body is the same as the outer diameter of the installation shaft.

3. The seat table linkage arrangement of claim 2, wherein: The installation shaft and the outer wall of the first plate body, the second plate body or the third plate body form a joint part, and the installation shaft is integrated with the outer wall of the first plate body, the second plate body or the third plate body through the joint part.

4. A seat table linkage arrangement according to any one of claims 1 to 3 wherein: The joint part is arranged between the end face of the installation shaft and the outer wall of the first plate body, the second plate body or the third plate body; or 5. The seat table connection arrangement of claim 4, wherein: The joint part is arranged between the side face of the installation shaft and the outer wall of the first plate body, the second plate body or the third plate body. The installation shaft is provided in a cylindrical structure, the table plate support frame comprises a cylindrical structure corresponding to the cylindrical structure, and the table plate support frame is sleeved with the installation shaft through the cylindrical structure extending into the cylindrical structure.

6. The seat table connection arrangement of claim 5, wherein: The table plate support frame further comprises a support column connected with the cylindrical structure, the support column is coaxially arranged with the cylindrical structure, and an end face of the support column close to the cylindrical structure protrudes from the side face of the cylindrical structure to form a limiting face abutting against an end face of the cylindrical structure away from the joint part; 7. The seat table linkage arrangement of claim 6, wherein: The table plate support frame can rotate relative to the installation shaft around the axis of the installation shaft, or the support column is provided in two sections connected with each other and capable of rotating along the axis of the installation shaft. The installation base is made of metal material and is provided in an integrated structure, and the first plate body and the second plate body are respectively formed by bending two ends of the third plate body.

8. The seat table connection arrangement of claim 5, wherein: The main body structure comprises a seat member for a rider to sit on; 9. A seat, characterized by At least one armrest structure and an armrest frame for supporting the armrest structure; A table plate structure and a table plate frame for supporting the table plate structure, The seat table plate connecting device according to any one of claims 1-8, the table plate support frame is provided as a table plate frame, the installation frame is provided as part of the main body structure or part of the armrest frame. ​ ​ 10. The seat of claim 9, wherein: The handrail structure comprises a first support connected with the main body structure, a second support connected with the first support at a lower end, and a third support connected with the second support in a liftable manner, the handrail structure is connected with an upper end of the third support, and the mounting frame is arranged as a part of the first support and disposed at a side of the seat member; The mounting shaft is arranged to extend upward in a vertical direction, the table board frame comprises a lower support arm connected with the mounting shaft at a lower end, a connecting support connected with the table board structure, and an upper support arm arranged between the connecting support and the lower support arm, the upper support arm comprises an upper arm body and a first connecting piece and a second connecting piece vertically rotatably connected with two ends of the upper arm body respectively, the connecting support is connected with the first connecting piece, and the second connecting piece is horizontally rotatably connected with an upper end of the lower support arm, the table board structure can be kept in a use state horizontally arranged above the handrail structure or in a storage state vertically stored outside the handrail structure through the table board frame, and the table board structure can be switched between the use state and the storage state at different heights through deformation of the table board frame when force is applied to the table board structure.

Images