CN217161488U - Modularization seat supporter and seat bearing structure - Google Patents

Abstract

The utility model discloses a modularized seat supporting body and a seat bearing structure, which comprises a base, a rear supporting seat is rotationally connected with the rear end of the base, and the rear end of the rear supporting seat is provided with a back mounting position for connecting a seat back; the front end of the base is provided with an elastic supporting piece which can elastically deform relative to the base; the elastic supporting piece extends forwards and upwards relative to the base, and the upper end of the elastic supporting piece is provided with a seat front mounting position used for connecting the front end of the seat; the left side and the right side of the rear supporting seat are provided with support arms which extend outwards in a mirror image manner, and the end part of each support arm is provided with a seat side mounting position for connecting the side part of the seat; bearing structure, back of the chair part detachable connections are on back installation position, and seat support part is connected with seat front mounting position and two seat side-mounting positions detachable simultaneously. The whole structure is simple and beautiful; the chair support body reserves an installation position for assembling the chair back and the chair seat, so that the chair back component and the chair seat component can be conveniently and freely detached and replaced; good universality and wide application range.

Description

Modularization seat supporter and seat bearing structure

Technical Field

The utility model relates to a thing to sit on field, in particular to modularization seat supporter and seat bearing structure.

Background

The office chair is an important office appliance in daily office life, and is popular with consumers due to good practicability. The comfort degree of the chair is directly related to the working and living quality of people, the functions of the chair back in the market at present are many, such as forward tilting and backward tilting, but the functions need to depend on the chassis, the complex structure of the chassis and the adjusting difficulty not only can increase the operation difficulty of a user, but also have high cost. Therefore, manufacturers are gradually pursuing to develop a lightweight chair capable of achieving the same tilting effect, so that the overall structure of the chair is simplified, the overall weight of the chair is reduced, and the cost is reduced.

In some existing chairs, an elastic material (such as elastic plastic or elastic engineering material) is arranged between a chassis and a chair seat and a chair back, so that the dynamic support of the chair back and the chair seat is realized, and the structure is simplified; however, in order to ensure the structural strength of such chairs using elastic materials, the elastic materials are usually integrally formed with the chair seat or the chair back; although the structure is simple and the elastic tilting function of the chair can be realized, the universality is not high, the chair back and the chair seat of the chair cannot be replaced on the basis of the structure, and the chair is not suitable for being applied to common office chairs; therefore, a seat support body with a simple structure, a seat tilting function and high universality is required to be designed.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a universal modular seat support body with a simplified structure, wherein a back support seat and an elastic support piece are arranged on a base, so that a back installation position for connecting a chair back, a front installation position for connecting a chair seat and a side installation position for connecting the chair seat are correspondingly formed; installation positions for assembling the chair back and the chair seat are reserved respectively, so that the structural requirements on the chair seat and the chair back are reduced; the modular seat support body has good universality and wide application range.

The chair seat component and the chair back component are respectively detachably arranged on the chair support body, and are convenient to detach and replace freely; therefore, the chair back components and the chair seat components with different shapes and specifications can be arranged on the chair support body, and the chair back components and the chair seat components can be popularized and used on the current office chair structure.

The technical scheme of the utility model is realized like this:

a modularized seat support comprises a base, wherein the rear end of the base is rotatably connected with a rear support seat, and the rear end of the rear support seat is provided with a back installation position for connecting a seat back; the front end of the base is provided with an elastic supporting piece which can elastically deform relative to the base; the elastic supporting piece extends forwards and upwards relative to the base, and the upper end of the elastic supporting piece is provided with a seat front mounting position used for connecting the front end of the seat; the mirror image of the left and right sides of back supporting seat is equipped with the support arm that outwards stretches out, is equipped with the seat side installation position that is used for connecting the seat support lateral part at the tip of every support arm.

Preferably, the arm, the rear support and the base are all rigid. Support arm, back supporting seat and base are the rigidity, and elastic support piece can elastic deformation, then can stable support seat support part and provide elastic support to seat support part.

Preferably, the rear support base is detachably connected with the base. The subassembly is further split, conveniently reduces the packing volume.

The utility model provides a seat bearing structure, includes seat support part, back of the chair part and modularization seat support body, back of the chair part detachable connections is on back installation position, the seat support part is in base and back supporting seat top, and the seat support part simultaneously with seat front mounting position and two seat side-mounting positions detachable connections.

Preferably, the seat component is of a frame structure or a plate structure; the length of the elastic supporting piece is matched with the distance between the front end of the base and the front end of the seat component, and the front seat mounting position is connected to the middle position of the front end of the seat component; the distance between the two seat side mounting positions is matched with the width of the seat part. The seat component can be arranged into frame structures or plate structures with different sizes and specifications, and the lengths of the elastic supporting piece and the support arm can be respectively configured to be matched with the shapes and sizes of the seat component; thereby being capable of being adapted to seat components with different shapes and specifications and stably supporting the seat components.

Preferably, the front end of the seat component is rotatably connected to the seat front mounting position; the front mounting position comprises a rotating shaft seat arranged at the upper end of the elastic supporting piece, and rotating shafts are respectively arranged on two sides of the rotating shaft seat; the pivot seat is configured to articulate with the seat member. The upper end of the elastic supporting piece is rotatably connected with the seat component, and then the rotating shaft seat can rotate in a self-adaptive manner when the seat component moves and the elastic supporting piece is stressed and deformed, so that the stress direction is changed; the fracture of the joint caused by over-concentrated stress is avoided; ingenious design and improved structural durability.

Preferably, the seat component is of a frame structure and comprises seat side rods respectively positioned at two sides and a front surrounding rod positioned at the front end; two spaced rotary matching seats are correspondingly arranged at the middle position of the front surrounding rod; a connecting circular groove which can be detachably connected with the rotating shaft is correspondingly arranged on the single rotating matching seat; the front end and the rear end of each rotating shaft are respectively provided with a shaft milling plane, the rotating matching seat is also provided with a limiting notch with a backward opening, and the limiting notch is communicated with the connecting circular groove; and the size of the opening of the limiting notch is matched with the distance between two shaft milling planes of the rotating shaft, and the size of the opening of the limiting notch is smaller than the diameter of the rotating shaft. When the seat component is in a frame structure, the rotary matching seat is correspondingly arranged on the front surrounding rod and is detachably connected with the rotary shaft seat; therefore, during installation, the angle of the seat part needs to be adjusted firstly, so that the rotating shaft can pass through the avoiding notch and is in rotating fit in the connecting circular groove, and then the seat main body is rotated to the horizontal position; the limiting notch can limit the rotating shaft to be separated from the connecting circular groove; design benefit for can carry out the dismouting, simple to operate fast between seat support main part and the rotating shaft seat.

Preferably, the seat component is of a plate-shaped structure, a first mounting seat which is detachably connected is correspondingly arranged at the middle position of the front end of the bottom surface of the seat component, and the rotating shaft seat is rotatably connected in the first mounting seat; the first mounting seat comprises two rotary matching seats which extend downwards and are spaced; a connecting circular groove which can be detachably connected with the rotating shaft is correspondingly arranged on the single rotating matching seat; the front end and the rear end of each rotating shaft are respectively provided with a shaft milling plane, the rotating matching seat is also provided with a limiting notch with a backward opening, and the limiting notch is communicated with the connecting circular groove; and the size of the opening of the limiting notch is matched with the distance between two shaft milling planes of the rotating shaft, and the size of the opening of the limiting notch is smaller than the diameter of the rotating shaft. When the seat component is of a plate-shaped structure, the first mounting seat matched with the rotating shaft seat is arranged at the corresponding position of the bottom surface of the seat component, and the structure is simple.

Preferably, two sides of the rear end of the seat component are respectively and rotatably connected to the seat side mounting positions; the seat side mounting position comprises a rotating mounting groove which is arranged at the end part of the support arm and is recessed downwards; the seat support is characterized in that connecting seats extending downwards are respectively arranged on two sides of the rear end of the seat support part, each connecting seat is detachably connected in a rotating mounting groove through a horizontal connecting pin, and each connecting seat can rotate by taking the connecting pin as a shaft. So that the two sides of the seat component are respectively and rotationally connected to the seat side mounting positions, and the seat component moves; the joint between the chair back component and the support arm can rotate in a self-adaptive manner, so that the joint between the chair back component and the support arm is prevented from being broken under stress; and the connecting seat is detachably connected with the rotating mounting groove, so that the chair seat component is convenient to disassemble and assemble.

Preferably, the seat component is of a frame structure and comprises seat side rods respectively positioned at two sides and a front surrounding rod positioned at the front end; the connecting seat sets up respectively in the rear end of every seat side lever.

Preferably, the seat member is a plate-shaped structure, and the connecting seats are respectively connected to corresponding positions on two sides of the rear end of the bottom surface of the seat member by screws.

Preferably, the chair back component is of a frame structure or a plate structure, and a back support is arranged at the lower end of the chair back component; the chair back component is connected to the back mounting position by screws. Then, the back support is arranged at the rear end of the chair back component, so that the chair back component can be arranged on a back mounting position, and no requirement is imposed on the shape and specification of the chair back component; the chair back component can be configured into different shapes and specifications, and the adaptability is wider.

Preferably, the elastic supporting piece is a spring steel plate, and the lower end of the spring steel plate is fixedly connected with the base; from back to front, the spring steel plate extends towards the upper front from the front end of the base. The spring steel plate is adopted, so that elastic support can be provided for the seat component all the time; and the connection strength between the base and the seat component can be ensured.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

firstly, the modular seat supporting body and the seat bearing structure of the utility model can drive the seat component to move backwards when the back component tilts backwards and rotates; the elastic supporting piece is correspondingly stressed and elastically bent and provides reset elasticity; therefore, the tilting function of the chair can be realized, the elastic support part can provide elastic support for the chair seat part and provide enough reset elastic force, and the chair is more comfortable to use. Compared with the chassis type seat structure in the prior art, the structure is simplified and beautiful undoubtedly. Moreover, a back support seat and an elastic support piece are arranged on the base, so that a back installation position for connecting a chair back, a seat front installation position for connecting a chair seat and a seat side installation position are correspondingly formed; installation positions for assembling the chair back and the chair seat are reserved respectively, so that the structural requirements of the chair seat and the chair back are reduced. The chair seat component and the chair back component can be directly detachably arranged on the chair support body, and are convenient to freely detach and replace; the modular seat support body has good universality and wide application range. Therefore, the chair back components and the chair seat components with different shapes and specifications can be arranged on the chair support body, and the chair back components and the chair seat components can be popularized and used on the current office chair structure.

Secondly, the seat component and the backrest component can be arranged into a frame structure or a plate structure and can be conveniently arranged on the bearing structure.

Moreover, the elastic supporting piece adopts a spring steel plate, the elastic deformation effect is good, and the chair seat component can be elastically supported all the time; and the connection strength between the base and the chair seat component can be ensured.

Drawings

Fig. 1 is a side view of the seat bearing structure of the present invention in embodiment 1;

fig. 2 is a schematic perspective view of a seat bearing structure according to embodiment 1 of the present invention;

fig. 3 is a schematic perspective view of the elastic supporting member connected to the base according to embodiment 1 of the present invention;

fig. 4 is a schematic perspective view of the connection between the base and the rear support in embodiment 1 of the present invention;

fig. 5 is a schematic perspective view of the rear part of the seat supporting structure according to embodiment 1 of the present invention;

fig. 6 is a schematic perspective view of a seat having a back member and a seat member of a frame-type structure according to embodiment 1 of the present invention;

fig. 7 is a schematic perspective view of the connection between the backrest component and the elastic support member according to embodiment 1 of the present invention;

fig. 8 is a schematic perspective view of a connection between a back member and a seat member according to embodiment 1 of the present invention;

fig. 9 is a schematic perspective view of a chair back member and a chair seat member of a plate-like structure according to embodiment 2 of the present invention;

fig. 10 is a schematic perspective view of a connection between a back member and a seat member according to embodiment 2 of the present invention.

The figures are numbered: a base 1; a seatback member 2; a back support 2 a; a seat member 3; a seat side lever 3 a; a front surrounding rod 3 b; a rear support base 4; a back mounting location 4 a; a support arm 4 b; a seat-side mounting position 4 c; an elastic support member 5; a front seat mounting position 5 a; an insertion section 5 b; a connecting shaft 6; the mounting base 7 is rotated; the mounting groove 8 is rotated; a connecting seat 9; the connecting pins 9 a; a caulking groove 10; a rib plate 11; a rotary shaft seat 12; a rotating shaft 13; the shaft milling plane 13 a; a rotating mating seat 14; a connecting circular groove 15; a limit notch 16; a flexible casing 17; a first mount 18; a slot 19.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present embodiment relates to reference positions of respective portions, and the position of the seatback member is defined as a rear end.

The specific implementation manner of the utility model is as follows:

example 1: as shown in fig. 1-8, the present invention provides a modular seat support and seat carrying structure, the seat support comprising a base 1; a rear support base 4 rotatably connected to the rear end of the base 1, the rear support base 4 being capable of rotating back and forth with respect to the base 1; and an elastic support member 5 provided at the front end of the base 1 and capable of elastic deformation. A back mounting position 4a for connecting a chair back is arranged at the rear end of the rear supporting seat 4; a seat front mounting position 5a used for connecting the front end of the seat is arranged at the upper end of the elastic supporting piece 5; two sides of the rear supporting seat 4 are provided with support arms 4b which extend outwards in a mirror image manner, wherein the end part of each support arm 4b is provided with a seat side mounting position 4c used for connecting the side part of the seat. The chair support body is simplified in structure, and installation positions for assembling the chair back and the chair seat are reserved respectively, so that the structural requirements on the chair seat and the chair back are reduced; the modular seat support body has good universality and wide application range. Further comprising: the chair bearing structure comprises a chair back component 2, a chair seat component 3 and the chair support body. When being installed, the back member 2 is detachably attached to the back attachment portion 4 a. The seat component 3 is detachably connected with the front seat mounting position 5a and the two side seat mounting positions 4 c. Then, by adopting the bearing structure, the rear support seat 4 can rotate back and forth relative to the base 1, and the elastic support piece 5 can elastically deform; therefore, the chair back component 2 can tilt and rotate relative to the base 1, the chair seat component 3 can move back and forth relative to the base 1 along with the chair back component 2, and the elastic support component 5 can correspondingly generate self-adaptive elastic deformation; the whole structure is simple and clear, and the appearance is beautiful. And back installation position 4 is equipped with on back supporting seat 4, can realize back of the chair part 2 can dismantle the connection. The elastic supporting piece 5 is provided with a front seat mounting position 5a, and the two support arms 4b are provided with seat side mounting positions 4; a detachable connection of the seat part 3 can be achieved. Furthermore, by adopting the bearing structure, the self shapes and sizes of the seat component 3 and the chair back component 2 are not limited, so that the chair back component 2 and the seat component 3 can be conveniently detached and replaced; therefore, the chair back components and the chair seat components with different shapes and specifications can be arranged on the chair support body, and the chair back components and the chair seat components can be popularized and used in the structure of the current office chair, and are wider in application range.

As shown in fig. 3-8, in the present embodiment, the backrest component 2 and the seat component 3 are both frame-type structures, wherein a back support 2a is disposed at the lower end of the backrest component 2, and the back support 2a is connected to the back mounting position 4a by screws; the shape and specification of the backrest member 2 are not required, and the lower end of the backrest member 2 is provided with a back support 2a which can be installed in cooperation with the back installation position 4 a. The seat component 3 comprises seat side rods 3a at two sides and a front wall rod 3b at the front end; the distance between the two seat side mounting positions 4c is matched with the distance between the two seat side rods 3a, and the seat side mounting positions 4c are respectively connected with the rear ends of the seat side rods 3 a. The length of the elastic supporting piece 5 is matched with the distance between the front end of the base 1 and the front end of the seat component 3, and the seat front mounting position 5a is connected to the middle position of the front surrounding rod 5 b; so that the seat member 3 can be configured as a frame structure with different sizes, and the lengths of the elastic support member 5 and the support arm 4b can be respectively configured to be matched with the shape and size of the seat member 3; the seat components 3 with different shapes and specifications can be arranged on the seat bearing structure, and the seat components 3 can be stably supported; and then the bearing structure has good universality.

As shown in fig. 3 to 8, the specific rotary connection structure between the rear supporting seat 4 and the base 1 is as follows: connecting shafts 6 extending outwards are respectively arranged on two sides of the rear end of the base 1; two rotary mounting seats 7 which are spaced left and right are correspondingly arranged at the front end of the rear supporting seat 4; the connecting shaft 6 on each side is rotatably connected to the rotating mounting seat 7 on the corresponding side; the connecting shaft 6 is detachably connected with the rotating mounting seat 7; further split subassembly can reduce the packing volume. So that the rear supporting seat 4 can rotate back and forth around the connecting shaft 6 relative to the base 1; so that the back member 2 can tilt back and forth relative to the base 1. The support arms 4b are arranged on two sides of the rear support seat 4 in a mirror image mode, and the support arms 4b extend upwards from the rear support seat 4 to two sides and incline; therefore, the seat component 3 is erected on the base 1, and the seat component 3 is in a free state relative to the base 1, so that the structure is novel and simple. Further comprising: two sides of the rear end of the seat component 3 are respectively and rotatably connected to a seat side mounting position 4c, namely, the seat side rod 3a is in hinged fit with the support arm 4 b; the seat side mounting position 4c comprises a downward-recessed rotation mounting groove 8 arranged at the end of the support arm 4b, and a connecting seat 9 extending downwards is arranged at the corresponding position of the rear end of the seat side rod 3 a; the connecting base 9 is integrally formed with the base side rod 3a or the connecting base 9 is connected to the base side rod 3a by a screw. The connecting base 9 is embedded downwards in the rotation mounting groove 8, and the connecting base 9 is connected in the rotation mounting groove 8 through a horizontal connecting pin 9 a; and the connecting seat 9 can rotate in the rotating installation groove 8 by taking the connecting pin 9a as an axis; then the connecting seat 9 is detachably connected with the rotating mounting groove 8 through the connecting pin 9a, so that the chair seat component 1 can be conveniently disassembled and assembled. Then, when the chair back component 2 tilts backwards, the support arm 4b drives the chair seat component 3 to synchronously move backwards, so as to realize the linkage of the chair back; and the hinged part of the seat side rod 3a and the support arm 4b can rotate in a self-adaptive manner, so that the stress fracture of the joint of the seat side rod and the support arm is avoided.

As shown in fig. 3 to 7, the elastic support 5 is a spring steel plate which can be both bent and deformed back and forth and also elastically twisted left and right; the elastic deformation effect is good, the structural strength is high, and the connection strength between the seat component 3 and the base 1 can be ensured. The lower extreme and the base 1 grafting cooperation of elastic support piece 5 specifically mean: the lower end of the elastic supporting piece 5 is provided with an inserting section 5b which horizontally extends backwards, the front end surface of the base 1 is correspondingly provided with a slot 19, and the inserting section 5b can be just inserted into the slot 19; a hollow caulking groove 10 is arranged in the middle of the inserting section 5b along the front-back direction, and an opening of the caulking groove 10 is positioned at the front end of the inserting section 5 b; a rib plate 11 is correspondingly arranged in the middle of the slot 19 of the base; when the plug section 5b is inserted into the slot 19, the rib plate 11 will be embedded into the caulking groove 10. So that the connection between the plug section 5b and the base 1 is tighter, and the connection strength is further increased. And after the inserting section 5b is completely inserted into the slot 19, the inserting section 5b is fixedly connected with the base 1 through a screw, and the screw vertically penetrates through the base 1 and the inserting section 5b from the upper end of the base 1, so that the two sections are stably connected.

Furthermore, the front end of the seat component 3 is rotatably connected on the seat front mounting position 5 a; from back to front, the elastic supporting piece 5 extends from the front end of the base 1 to the front upper part and is hinged at the middle position of the front end of the seat component 3; the front end of the seat component 3 forms a closed loop with the base 1 through the elastic supporting component 5, and the structure is beautiful. Further comprising: the upper end of the elastic support piece 5 is connected with a rotating shaft seat 12, the upper end of the elastic support piece 5 and the rotating shaft seat 12 are fixed in an inserting and screw connection mode, and the connection structure and the inserting section 5b are connected with the base 1 in the same mode; so that the connection between the shaft seat 12 and the elastic support 5 is stable. Two sides of the rotating shaft seat 12 are respectively provided with a rotating shaft 13; two spaced rotary matching seats 14 are correspondingly arranged in the middle of the front surrounding rod 3b of the seat component 3, and the rotary matching seats 14 and the front surrounding rod 3b are integrally formed or the rotary matching seats 14 are connected on the front surrounding rod 3b by screws. A connecting circular groove 15 which can be in running fit with the rotating shaft 13 is arranged on the inner side of the single running fit seat 14; and the rotary matching seat 14 and the rotary shaft seat 12 are detachably connected, specifically: the front end and the rear end of each rotating shaft 13 are respectively provided with a shaft milling plane 13a, the rotating matching seat 14 is also provided with a limiting notch 16 with a backward opening, the limiting notch 16 is communicated with the connecting circular groove 15, the limiting notch 16 is configured to be matched with the distance between the two shaft milling planes 13a of the rotating shaft 13 in the opening size, and the opening size of the limiting notch 16 is smaller than the diameter of the rotating shaft 13; therefore, during installation, the angle of the seat component 3 needs to be adjusted firstly, so that the rotating shaft 13 can pass through the avoiding notch 16 and is in rotating fit in the connecting circular groove 15, and then the seat component 3 is rotated to the horizontal position; the limit notch 16 can then limit the rotation shaft 13 from being separated from the connection circular groove 15. The design is ingenious, the chair seat component 3 and the rotating shaft seat 12 can be quickly disassembled and assembled, and the installation is convenient. Then the joint of the upper end of the elastic support piece 5 and the seat component 3 can rotate, and when the seat component 3 moves and the elastic support piece 5 deforms under stress, the rotating shaft seat 12 can rotate in a self-adaptive manner, so that the stress direction is changed; the fracture of the joint caused by over-concentrated stress is avoided; ingenious design and improved structural durability.

Moreover, the seat front mounting positions 5a and the two seat side mounting positions 4c are distributed in a triangular shape, so that the structure of the connected rear seat component 3 is more stable. The front seat mounting position 5a and the side seat mounting position 4c are close to or at the same horizontal height, and the height difference between the front seat mounting position and the side seat mounting position is 0-10 cm; so that the front-rear fall of the seat member 3 is not excessively large.

As shown in fig. 2, 3 and 7, a flexible outer cover 17 is further disposed on the elastic support member 5, and the flexible outer cover 17 is made of soft rubber; the flexible cover 17 covers the part of the elastic support 5 exposed between the base 1 and the rotary shaft seat 12; so that the presence of the elastic support 5 can be hidden, making the structure more compact and aesthetic.

Example 2: as shown in fig. 9 to 10, the present embodiment differs from embodiment 1 in that: the chair back component 2 and the chair seat component 3 are both of plate-shaped structures; the lower end of the chair back component 2 is still provided with a back support 2a, and the back support 2a is connected to the back mounting position 4a by screws; in the same way as the connection of the backrest part 2 in the frame-like configuration, the backrest part 2 can be mounted on the back mounting location 4a, whether it is in the frame-like configuration or in the plate-like configuration. As shown in fig. 10, the seat member 3 is a plate-like structure, a first mounting seat 18 detachably connected with a screw is arranged at the middle position of the front end of the bottom surface of the seat member 3, and the first mounting seat 18 is provided with a rotating matching seat 14 which extends downwards and is spaced; the rotary shaft seat 12 is rotatably connected between the rotary matching seats 14 of the chain; and the rotating matching way of the rotating shaft seat 12 and the rotating matching seat is the same as the rotating connection structure of the rotating shaft seat 12 and the rotating matching seat 14 in the embodiment 1. The connecting seats 9 are detachably connected to corresponding positions on two sides of the rear end of the chair back component 3 through screws respectively, and the distance between the two connecting seats 9 is matched with the distance between the two seat side mounting positions 4 c; the connecting socket 9 is also rotatably connected in the rotation mounting groove 8 by a connecting pin 9 a. Therefore, when the seat component 3 is of a plate-shaped structure, only the first mounting seat 18 and the connecting seat 9 are correspondingly arranged at the corresponding position of the bottom surface of the chair back component 3, and the first connecting seat 18 and the connecting seat 9 are directly connected to the chair back component 3 through screws. The seat member 3 is also mounted on the front mounting seat 5a and the side mounting seats 4 c.

In conclusion, the modular seat supporting body and the seat bearing structure of the utility model are adopted; the support arm 4b, the rear support seat 4 and the base 1 are all made of rigid materials; when the chair back component 2 rotates backwards, the chair seat component 3 can be driven to move backwards at the same time; the elastic support piece 5 is correspondingly stressed and elastically bent and provides reset elasticity; thereby can realize the function of inclining of seat, and elastic support piece 5 can carry out elastic support to seat support part 3 to provide sufficient elasticity that resets, the seat uses more comfortablely. Compared with the chassis type seat structure in the prior art, the structure is simplified and beautiful undoubtedly. Moreover, the seat support body is detachably connected with the seat part 3 and the backrest part 2 by reserving a back installation position 4a, a front seat installation position 5a and a side seat installation position 4 c; the requirements on the structures of the chair back component 2 and the chair seat component 3 are reduced; the seat component 3 and the chair back component 2 are configured into different shapes and specifications and can be installed on the chair support body, so that the seat component 3 and the chair back component 2 can be conveniently replaced and disassembled; the modular seat support body has good universality and wide application range.

Claims (13)

1. A modular seat support, characterized by: the chair comprises a base, wherein the rear end of the base is rotatably connected with a rear supporting seat, and the rear end of the rear supporting seat is provided with a back mounting position for connecting a chair back; the front end of the base is provided with an elastic supporting piece which can elastically deform relative to the base; the elastic supporting piece extends forwards and upwards relative to the base, and the upper end of the elastic supporting piece is provided with a seat front mounting position used for connecting the front end of the seat; the mirror image of the left and right sides of back supporting seat is equipped with the support arm that outwards stretches out, is equipped with the seat side installation position that is used for connecting the seat support lateral part at the tip of every support arm.

2. The modular seat support of claim 1, wherein: the support arm, the rear support seat and the base are all rigid.

3. The modular seat support of claim 1, wherein: the rear supporting seat is detachably connected with the base.

4. A seat bearing structure characterized by: a modular seat support according to any one of claims 1 to 3 comprising a seat component, a back component and a modular seat support according to any one of claims 1 to 3, the back component being removably attachable to the back mounting location, the seat component being located above the base and the rear support base, and the seat component being removably attachable to both the front mounting location and the two side mounting locations.

5. The seat bearing structure according to claim 4, wherein: the chair seat component is of a frame structure or a plate structure; the length of the elastic supporting piece is matched with the distance between the front end of the base and the front end of the seat component, and the front seat mounting position is connected to the middle position of the front end of the seat component; the distance between the two seat side mounting positions is matched with the width of the seat component.

6. The seat bearing structure according to claim 4, wherein: the front end of the seat component is rotatably connected to the seat front mounting position; the front mounting position comprises a rotating shaft seat arranged at the upper end of the elastic supporting piece, and rotating shafts are respectively arranged on two sides of the rotating shaft seat; the pivot seat is configured to articulate with the seat member.

7. The seat bearing structure of claim 6, wherein: the chair seat component is of a frame type structure and comprises seat side rods respectively positioned at two sides and a front surrounding rod positioned at the front end; two spaced rotary matching seats are correspondingly arranged in the middle of the front surrounding rod; a connecting circular groove which can be detachably connected with the rotating shaft is correspondingly arranged on the single rotating matching seat; the front end and the rear end of each rotating shaft are respectively provided with a shaft milling plane, the rotating matching seat is also provided with a limiting notch with a backward opening, and the limiting notch is communicated with the connecting circular groove; and the size of the opening of the limiting notch is matched with the distance between two shaft milling planes of the rotating shaft, and the size of the opening of the limiting notch is smaller than the diameter of the rotating shaft.

8. The seat bearing structure of claim 6, wherein: the chair seat component is of a plate-shaped structure, a first mounting seat which is detachably connected is correspondingly arranged in the middle of the front end of the bottom surface of the chair seat component, and the rotating shaft seat is rotatably connected in the first mounting seat; the first mounting seat comprises two rotary matching seats which extend downwards and are spaced; a connecting circular groove which can be detachably connected with the rotating shaft is correspondingly arranged on the single rotating matching seat; the front end and the rear end of each rotating shaft are respectively provided with a shaft milling plane, the rotating matching seat is also provided with a limiting notch with a backward opening, and the limiting notch is communicated with the connecting circular groove; and the size of the opening of the limiting notch is matched with the distance between two shaft milling planes of the rotating shaft, and the size of the opening of the limiting notch is smaller than the diameter of the rotating shaft.

9. The seat bearing structure according to claim 4, wherein: two sides of the rear end of the chair seat component are respectively and rotatably connected to the seat side mounting positions; the seat side mounting position comprises a rotating mounting groove which is arranged at the end part of the support arm and is recessed downwards; the seat support is characterized in that connecting seats extending downwards are respectively arranged on two sides of the rear end of the seat support part, each connecting seat is detachably connected in a rotating mounting groove through a horizontal connecting pin, and each connecting seat can rotate by taking the connecting pin as a shaft.

10. The seat bearing structure of claim 9, wherein: the chair seat component is of a frame type structure and comprises seat side rods respectively positioned at two sides and a front surrounding rod positioned at the front end; the connecting seats are respectively arranged at the rear ends of the side rods of each seat.

11. The seat bearing structure of claim 9, wherein: the chair seat component is of a plate-shaped structure, and the connecting seats are respectively connected to the corresponding positions on two sides of the rear end of the bottom surface of the chair seat component through screws.

12. The seat bearing structure of claim 4, wherein: the chair back component is of a frame structure or a plate structure, and a back support is arranged at the lower end of the chair back component; the chair back component is connected to the back mounting position by screws.

13. The seat bearing structure according to claim 4, wherein: the elastic supporting piece is a spring steel plate, and the lower end of the spring steel plate is fixedly connected with the base; from back to front, the spring steel plate extends towards the upper front from the front end of the base.

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