CN219047857U - Multifunctional office chair convenient to store - Google Patents

Abstract

The utility model discloses a multifunctional office chair convenient to store, which comprises a chair back, wherein the chair back comprises a backrest and a massage assembly, the backrest is provided with a mounting groove, and the massage assembly is movably arranged in the mounting groove; the massage component is in a massage state and a storage state, and when the massage component is in the massage state, part of the massage component can extend out of the mounting groove; when the massage component is in a storage state, the massage component can be stored in the mounting groove; the seat comprises a stool and armrests, and at least one of the armrests is provided with a heat dissipation structure for dissipating heat of the stool; the space between the two armrests can be used for the chair back to rotate, and when the massage assembly is in a storage state, the backrest can rotate to be attached to the stool, so that the chair back and the chair seat can be folded. The massage assembly is arranged on the chair back, and the heat dissipation structure is arranged on the chair seat, so that the use experience of a user is improved, the massage assembly can be stored in the chair back, when the massage assembly is hidden, the chair back can be directly folded, and the chair back is attached to the chair seat, so that the occupied space is reduced, and the massage assembly is convenient to store.

Description

Multifunctional office chair convenient to store

Technical Field

The utility model relates to the technical field of office chairs, in particular to a multifunctional office chair convenient to store.

Background

The office chair is a chair which is convenient for work in daily work and social activities, is a backrest chair for people to sit when carrying out desktop work in a sitting posture state, and the quality of the office chair can also have a certain influence on the work efficiency of people. The students, office workers and other people need to sit on the chairs for a long time to learn and work, and when the users sit for a long time for work or study, discomfort such as fatigue, dryness heat and the like can be generated, the attention is influenced, the learning and working efficiency is reduced, and the health is also not facilitated.

At present, the existing office chairs are provided with functional structures such as heat dissipation, massage and the like which can improve the experience of users, and the structures are generally simple to be internally arranged or externally arranged on the chair back of the office chair, so that the chair back is large in size, and the office chair also has large size and weight for the whole balance of the office chair, so that the office chair needs to occupy large space for placement; in addition, due to the arrangement of the functional structure, the chair back cannot be folded, or the functional structure needs to be detached firstly to be folded, so that the operation is complex, and the chair back is inconvenient to store and transfer.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the multifunctional office chair convenient to store is provided with the massage component with the switchable state on the chair back, and the heat dissipation structure is arranged on the chair seat, so that the use experience of a user is improved, the massage component can be stored in the chair back, when the massage component is hidden, the chair back can be directly folded, the chair back is attached to the chair seat, and the occupied space is reduced, so that the multifunctional office chair is convenient to store.

According to an embodiment of the first aspect of the present utility model, a multifunctional office chair for easy storage includes: the chair back comprises a backrest and a massage assembly, wherein the backrest is provided with a mounting groove, and the massage assembly is movably arranged in the mounting groove; the massage component is in a massage state and a storage state, and when the massage component is in the massage state, part of the massage component can extend out of the mounting groove to be contacted with the waist and the back of a user; when the massage assembly is in the storage state, the massage assembly can be stored in the mounting groove; the chair seat comprises a stool and armrests, wherein the stool is hinged with the lower end of the backrest, the two armrests are respectively arranged on two opposite sides of the stool, and at least one of the armrests is provided with a heat dissipation structure for dissipating heat of the stool; the space between the two armrests can be used for the chair back to rotate, and when the massage assembly is in the storage state, the backrest can rotate to be attached to the surface of the stool, so that the chair back and the chair seat can be folded.

According to the embodiment of the utility model, the multifunctional office chair convenient to store has at least the following beneficial effects: the massage assembly is arranged in the chair back and has a massage state and a storage state, and when a user needs to massage, part of the massage assembly can extend out of the mounting groove on the chair back; when the user does not need to massage, the massage component can be accommodated in the mounting groove; the chair back space is effectively utilized, the occupied space of the office chair can be reduced, the chair back and the chair seat are also convenient to fold, and the volume is reduced. The heat radiation structure is arranged in the armrests, so that the space of the armrests is effectively utilized, when a user sits on the chair, the armrests are opposite to a human body, and the heat radiation structure can supply air to and radiate heat for the user. The space between the two armrests can be used for the chair back to rotate, namely, the distance between the two armrests is equal to or slightly larger than the width of the chair back, when the massage assembly is in a storage state, the backrest can rotate to be attached to the surface of the stool, the armrests on the two sides are attached to the side edges of the backrest, the chair back and the chair seat are folded into a compact flat shape, the space on the stool is reasonably utilized, and the massage assembly is convenient to transfer and store.

According to some embodiments of the utility model, the bench comprises a seat and a bracket, the backrest is hinged with the seat, and the armrests are arranged on the seat; the support is arranged below the seat surface to support the seat surface, and is telescopic and used for adjusting the height of the seat surface.

According to some embodiments of the utility model, the massage assembly comprises a support part and a massage part, wherein one end of the support part is rotatably connected in the mounting groove, and the other end of the support part is connected with the massage part; the support part rotates to switch the state of the massage assembly, and when the massage assembly is switched to the massage state, the support part rotates outwards of the mounting groove, so that the massage part partially extends out of the mounting groove and the position of the massage part is fixed through the fixing structure; when the massage assembly is switched to the storage state, the supporting part rotates into the mounting groove, and the supporting part and the massage part are both retracted into the mounting groove.

According to some embodiments of the utility model, the side wall of the mounting groove is provided with a fixing hole, and the fixing hole extends in a direction away from the mounting groove and penetrates through the backrest; when the massage assembly is in the massage state, the fixing structure can pass through the fixing hole and be connected with the massage assembly so as to position the massage assembly.

According to some embodiments of the utility model, a first connecting shaft is arranged in the mounting groove, one end of the supporting part is hinged to the first connecting shaft, the other end of the supporting part is rotatably connected with a second connecting shaft, and the massage part is arranged on the second connecting shaft in a penetrating manner and is fixed with the second connecting shaft.

According to some embodiments of the utility model, the fixing structure includes a fixing rod and a transmission part, the transmission part is disposed at one end of the fixing rod, the fixing rod is matched with the fixing hole, the fixing rod can pass through the fixing hole, the transmission part extends into the mounting groove to be connected with the second connecting shaft, and the rotation of the fixing rod can drive the second connecting shaft to rotate and drive the massage part to rotate to massage.

According to some embodiments of the utility model, a plurality of groups of massage components are arranged in the mounting groove, and the massage components are distributed at intervals along the length direction of the mounting groove; the fixed rod is provided with a driving wheel at one end far away from the transmission part, a plurality of groups of driving wheels connected with the massage components are connected through transmission of a transmission belt, one driving wheel rotates to drive the other driving wheels to synchronously rotate, so that the massage components can massage simultaneously.

According to some embodiments of the utility model, the handrail is provided with a heat radiation opening, a cavity is arranged in the handrail, and the heat radiation opening is communicated with the cavity; the heat dissipation structure comprises a fan and a driving assembly, the fan is rotatably arranged in the cavity and positioned at the heat dissipation opening, the driving assembly comprises a gear and a rack, the gear is fixedly connected with the fan, and the rack is movably arranged in the cavity and meshed with the gear; the gear is used for driving the gear to rotate, and drives the fan to rotate so as to supply air to the stool for heat dissipation.

According to some embodiments of the utility model, the heat dissipation structure further comprises a moving assembly, wherein the moving assembly is connected with the rack and used for controlling the rack to reciprocate so as to drive the fan to rotate continuously; the movable assembly comprises a rotating wheel and a connecting rod, the rotating wheel is arranged on one side of the rack, one end of the connecting rod is hinged with the rotating wheel, the other end of the connecting rod is hinged with the rack, and the rotating wheel can drive the rack to reciprocate through the connecting rod when rotating.

According to some embodiments of the utility model, a first connecting column is arranged on the round surface of the rotating wheel, and one end of the connecting rod is hinged with the rotating wheel through the first connecting column; the rotating wheel rotates, and the connecting column moves along with the horizontal position of the rack so as to drive the rack to move.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a mounting structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a folded structure of the embodiment of the present utility model;

FIG. 3 is a schematic view of the mounting structure of the chair back in a massage state;

FIG. 4 is a side view of the chair back in a massage position;

FIG. 5 is an exploded view of the chair back;

FIG. 6 is a schematic view of the mounting structure of the chair back in the stowed condition;

FIG. 7 is a side view of the seatback in the stowed condition;

FIG. 8 is a schematic view of the mounting structure of the seat;

FIG. 9 is an exploded view of the seat;

fig. 10 is a cross-sectional view of A-A of fig. 8.

Reference numerals:

chair back 100, backrest 110, mounting groove 111, fixing hole 112, mounting cover 113, massage assembly 120, support 121, first connecting shaft 122, second connecting shaft 123, transmission groove 124, massage part 125, massage block 126, fixing rod 130, transmission block 131, driving wheel 140, transmission belt 141, knob 142, protection box 150, relief hole 151;

the seat assembly comprises a seat 200, a stool 210, a bracket 211, a first supporting cylinder 212, a second supporting cylinder 213, universal wheels 214, a seat 215, armrests 220, a heat dissipation opening 221, a dust screen 222, a first rotating shaft 223, a mounting opening 224, a second rotating shaft 225, a heat dissipation structure 230, a fan 231, a driving component 232, a gear 233, a rack 234, a second connecting column 235, a moving component 240, a rotating wheel 241, a connecting rod 242, a first connecting column 243 and a guide groove 244.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 10, a multifunctional office chair with easy storage according to an embodiment of the present utility model includes a chair back 100 and a chair seat 200.

The chair back 100 comprises a backrest 110 and a massage component 120, wherein one surface of the backrest 110 for a user to lean against is provided with a mounting groove 111, and the massage component 120 is movably arranged in the mounting groove 111; the existing office chair with massage function is generally characterized in that a massage back cushion is fixedly arranged on a backrest 110, and a massage protrusion is arranged on the massage back cushion and can be fixed or electrically controlled; if the bulges are fixed, the massage cushion can only passively press the fixed position on the waist and the back of the user, and the massage effect is poor; if the bulge is movable, the motor is used for controlling the massage, and the massage cushion can effectively relax muscles and relieve the muscular soreness of the waist and the back through vibration, rotation or beating and the like, so that the massage cushion has good massage effect, but the massage cushion needs more structures, occupies large space, and causes the volume and the quality of the office chair to be enlarged and inconvenient to store.

Therefore, referring to fig. 1, in the present utility model, a massage assembly 120 is provided, the massage assembly 120 is built in the chair back 100, and has a massage state and a storage state, when a user needs to perform a massage, the massage assembly is switched to the massage state, and a part of the massage assembly 120 can extend out of the mounting groove 111 on the chair back 100; when the user does not need to perform the massage, the massage assembly 120 is switched to the storage state and can be stored in the mounting groove 111. The arrangement effectively utilizes the space of the chair back 100, can reduce the occupied space of the office chair, is convenient for folding the chair back 100 and the chair seat 200, reduces the volume and is convenient for transferring; in addition, since the massage assembly 120 can be hidden in the chair back 100, when the massage assembly 120 is in the storage state, the massage assembly is substantially the same as a common office chair, and therefore, the office chair in the embodiment can be applied to more serious occasions such as a conference room.

The seat 200 includes a stool 210 and armrests 220, the stool 210 is hinged with the lower end of the backrest 110, and the backrest 110 can rotate around the stool 210 to adjust to a state suitable for leaning on the waist and the back of a user; the two armrests 220 are respectively disposed at two opposite sides of the stool 210, and at least one of the armrests 220 is provided with a heat dissipation structure 230 for dissipating heat from the stool 210.

In the conventional office chair capable of dissipating heat, the heat dissipating structure 230 is generally disposed on the chair back 100, but in this embodiment, the massage assembly 120 is already disposed in the chair back 100, so that the heat dissipating structure 230 is mounted on the armrest 220, which not only can effectively utilize the space of the armrest 220, but also can reduce the volume and weight of the chair back 100; when a user sits on the chair, the armrests 220 are opposite to the human body, and the heat dissipation structure 230 can supply air to the user for heat dissipation.

In order to enable the office chair of the present embodiment to fold conveniently and quickly, and reduce the space for accommodating, referring to fig. 2, the space between the two armrests 220 can be used for the chair back 100 to rotate, i.e. the distance between the two armrests 220 is equal to or slightly larger than the width of the chair back 100, when the massage assembly 120 is in the accommodating state, the backrest 110 can rotate to be attached to the surface of the stool 210, the armrests 220 on both sides are also attached to the side edges of the backrest 110, the chair back 100 and the chair seat 200 are folded into a compact flat configuration, the space on the stool 210 is reasonably utilized, and the transfer and the accommodating are convenient.

Referring to fig. 1, in some embodiments of the present utility model, a stool 210 includes a seat 215 and a bracket 211, a backrest 110 is hinged to the seat 215, and armrests 220 are provided on the seat 215; the support 211 is arranged below the seat 215 to support the seat 215, and the support 211 is telescopic and is used for adjusting the height of the seat 215 so that a user can sit down; the bottom of the bracket 211 may also be coupled to a universal wheel 214 for shifting positions.

Specifically, the stand 211 includes a plurality of support cylinders, each of which is stepped and is sequentially slidably connected, and when the office chair is unfolded for use, the stand 211 can be slidably extended to the configuration shown in fig. 1; when the office chair is folded, the stand 211 can be slid and retracted to the configuration shown in figure 2,

the support 211 comprises a plurality of support cylinders, such as a first support cylinder 212, a second support cylinder 213 and the like, wherein each support cylinder is sequentially connected in a sliding manner and is in a ladder shape, the second support cylinder 213 can slide along the inner wall of the first support cylinder 212, and the rest support cylinders are the same. When the office chair is unfolded for use, the bracket 211 can be slidably extended to the form shown in fig. 1, and the height of the bracket 211 can be adjusted by adjusting the length of the second support cylinder 213 extended from the first support cylinder 212 (the rest support cylinders are the same), so that a user can sit down; when the office chair is folded, the chair back 100 is rotated to be attached to the chair seat 200, and the second supporting cylinder 213 is retracted into the first supporting cylinder 212 (the rest supporting cylinders are the same), so that the bracket 211 can be retracted to the minimum configuration shown in fig. 2, so that the office chair can be stored and transferred.

In a further embodiment of the present utility model, the massage assembly 120 includes a support portion 121 and a massage portion 125, wherein one end of the support portion 121 is rotatably connected to the inside of the installation groove 111, and the other end is connected to the massage portion 125, and the state switching can be achieved by the rotation of the support portion 121 in the installation groove 111. Referring to fig. 3 to 4, when the massage assembly 120 is switched to the massage state, the supporting part 121 is rotated to the outside of the mounting groove 111, so that the massage part 125 partially protrudes from the mounting groove 111, and the position of the massage part 125 is fixed by the fixing structure to contact with the waist and back of the user for massage; when the massage assembly 120 is switched to the storage state, the support portion 121 rotates into the mounting groove 111, and both the support portion 121 and the massage portion 125 are housed in the mounting groove 111.

Referring to fig. 5, the mounting groove 111 is detachably connected with the mounting cover 113, specifically, the mounting cover 113 can be connected with the side wall of the mounting groove 111 through a fastening structure, before the massage assembly 120 is switched to a massage state, the fastening is released, the mounting cover 113 is removed, referring to fig. 6 to 7, after the massage is completed, the massage assembly 120 is switched to a storage state, then the mounting cover 113 is fastened and covered on the mounting groove 111, the mounting cover 113 fixedly stores the massage assembly 120 in the mounting groove 111, so that the massage assembly 120 can be protected, and an office chair can be switched to a common office chair.

Referring to fig. 5, in a further embodiment of the present utility model, fixing holes 112 are formed on both left and right sidewalls of the mounting groove 111, and the fixing holes 112 extend through the backrest 110 (extend to the outer sidewall of the backrest 110) in a direction away from the mounting groove 111; when the massage assembly 120 is in the massage state, the fixing structure can pass through the fixing hole 112 and be connected with the massage assembly 120 to position the massage assembly 120, so as to limit the rotation of the supporting portion 121 in the massage assembly 120, and prevent the massage assembly 120 from being pressed into the mounting groove 111 when a user leans against the backrest 110.

Referring to fig. 5, in a further embodiment of the present utility model, a first connection shaft 122 is provided in the installation groove 111, one end of the supporting portion 121 is hinged to the first connection shaft 122, the other end is rotatably connected to a second connection shaft 123, and the massage portion 125 is disposed on the second connection shaft 123 in a penetrating manner and is fixed to the second connection shaft 123.

Specifically, the supporting portion 121 is a supporting plate, in this embodiment, the lower end of the supporting portion 121 is located in the mounting groove 111 and hinged to the first connecting shaft 122, the upper end of the supporting portion 121 is connected to the second connecting shaft 123, and when the supporting plate is switched to the massage state, referring to fig. 3 to 4, the upper end rotates outwards, so that the massage assembly 120 on the second connecting shaft 123 partially extends out of the mounting groove 111; it will be appreciated that in other embodiments, the upper end of the support portion 121 is hinged to the first connecting shaft 122, the lower end is connected to the second connecting shaft 123, and the lower end is rotated outwards when the support plate is switched to the massage state.

Referring to fig. 5, the massage part 125 is a massage circular shaft, and a plurality of protruding massage blocks 126 are provided on the surface of the circular shaft, and the massage blocks 126 are uniformly distributed along the circumferential direction. As can be seen from the foregoing, the fixed massage portion 125 (the fixed massage protrusions in the prior art) can only passively press the fixed position on the lumbar and back of the user, so the massage effect is poor, and therefore, in this embodiment, the second connecting shaft 123 is rotatably connected to the supporting portion 121, and the second connecting shaft 123 is driven to rotate to drive the massage portion 125 to rotate, thereby performing rolling massage on the lumbar and back muscles of the user, and improving the massage effect.

Referring to fig. 5, in a further embodiment of the present utility model, the fixing structure includes a fixing rod 130 and a transmission part, the transmission part is disposed at one end of the fixing rod 130, the fixing rod 130 is matched with the fixing hole 112, the fixing rod 130 is disposed in the fixing hole 112 in a penetrating manner, the transmission part is pushed to extend into the mounting groove 111 to be connected with the second connecting shaft 123, and the rotation of the fixing rod 130 can drive the second connecting shaft 123 to rotate and drive the massage part 125 to rotate for massaging.

Specifically, when the massage assembly 120 is in the storage state, the fixing rod 130 is also inserted into the fixing hole 112, but the transmission part is separated from the second connecting shaft 123, and when the massage assembly 120 is to be switched to the massage state, the fixing rod 130 needs to be pushed inwards to connect the transmission part with the second connecting shaft 123.

The transmission part is connected with the second connecting shaft 123 in an inserting manner, the transmission part and the second connecting shaft 123 are relatively fixed in the rotation direction, that is, the transmission part can move axially relative to the second connecting shaft 123 (when the transmission part moves in a direction away from the second connecting shaft 123, the transmission part can be separated from the second connecting shaft 123 to release the connection with the second connecting shaft 123), but cannot rotate relative to the second connecting shaft 123, and the transmission part is driven to rotate to drive the second connecting shaft 123 to rotate.

Further, a plurality of transmission grooves 124 are formed on the shaft end surface of the second connecting shaft 123, the transmission grooves 124 extend from the shaft end surface along the axial direction, and the plurality of transmission grooves 124 are distributed on the peripheral wall along the circumferential direction of the second connecting shaft 123; the transmission part comprises a plurality of transmission blocks 131, and the transmission blocks 131 are correspondingly matched with the transmission grooves 124, namely, the shape, the size and the relative position of the transmission blocks 131 are matched with the transmission grooves 124 one by one; after the transmission block 131 is inserted into the transmission groove 124, the transmission block 131 abuts against the groove wall of the transmission groove 124, and the rotation of the driving part drives the second connecting shaft 123 to rotate.

Referring to fig. 5, in some embodiments of the present utility model, a plurality of sets of massage assemblies 120 are disposed in the mounting groove 111, and each structure related to the massage assemblies 120 is disposed in the mounting groove 111, and the plurality of sets of massage assemblies 120 are spaced apart along the length direction of the mounting groove 111, so as to increase the lumbar and back massage range. The fixed rod 130 is provided with a driving wheel 140 at one end far away from the transmission part, the driving wheels 140 connected with the multiple groups of massage components 120 are connected in a transmission way through a transmission belt 141, and one driving wheel 140 rotates to drive the other driving wheels 140 to synchronously rotate, so that the multiple groups of massage components 120 can massage simultaneously.

One end of the fixing rod 130 extends into the mounting groove 111, the other end of the fixing rod 130 is located outside the backrest 110, and a knob 142 is mounted on the end of the fixing rod 130 located outside the backrest 110 for manual operation and control, and is used for driving the massage part 125 to rotate.

Specifically, each group of massage assemblies 120 is respectively connected with a knob 142, when a user needs to massage, the user stretches the hand to the knob 142 which is most convenient to operate, the corresponding massage part 125 can be controlled to rotate by rotating the knob 142, each group of massage parts 125 are connected by transmission of the transmission belt 141, and all the massage parts 125 can be controlled to synchronously rotate by only rotating one knob 142; the rotation speed of the massage part 125 can also be manually controlled according to the rotation speed of the knob 142.

The sizes of the users are different, and the positions of the hands of the users extending are also different, so in this embodiment, a plurality of knobs 142 are provided along the height direction of the chair back 100 (i.e. the length direction of the mounting groove 111), which is convenient for each user to use and improves the comfort of the user.

It can be appreciated that two methods of rotation of the driving wheel 140 can be used in the present utility model, the first method is that the driving wheel 140 is electrically controlled, the driving wheel 140 is connected to an external motor, and the massaging portion 125 automatically rotates when the motor is started; the second method adopts a manual method to manually rotate the driving wheel 140 to drive the massage part 125 to rotate, and the rotating speed of the massage part 125 can be controlled by controlling the rotating speed of the driving wheel 140 according to the requirement; the electric control can also control the rotation speed of the driving wheel 140, but the manual method has the following advantages compared with the electric control method: the manual method is not limited by the power supply, and the massage part 125 can be driven to rotate by manually moving the rack 234 under the condition of insufficient power supply or no power supply, so that the condition of failure of the massage function caused by power failure can be avoided.

Further, the present utility model further includes a protection box 150, where the protection box 150 is detachably mounted on the outer side of the backrest 110, for protecting the driving wheel 140 and the driving belt 141, and a relief hole 151 through which the fixing rod 130 passes is provided on the protection box 150, and a portion of the fixing rod 130 extending out of the relief hole 151 is connected with the knob 142. The knob 142 and the protection box 150 are arranged, so that the fixing rod 130 can be prevented from being separated from the fixing hole 112, and when the transmission block 131 at the other end of the fixing rod 130 is inserted into the transmission groove 124, the knob 142 is abutted against the surface of the protection box 150; after the massage is completed, the fixing rod 130 is pulled outwards, so that the transmission block 131 is separated from the transmission groove 124.

In some embodiments of the present utility model, two armrests 220 are respectively disposed on opposite sides (i.e., left and right sides) of the stool 210, and at least one of the armrests 220 is provided with a heat dissipation opening 221, wherein the heat dissipation opening 221 is disposed on a surface facing the other armrest 220. Specifically, referring to fig. 8, a heat dissipation opening 221 is formed on the left side surface of the armrest 220 on the right side of the stool 210, a cavity is formed in the armrest 220, a heat dissipation structure 230 is disposed in the cavity, the heat dissipation opening 221 is communicated with the cavity, and cool air generated by the heat dissipation structure 230 is blown from the heat dissipation opening 221 to the stool 210 to dissipate heat of a user.

The heat dissipation structure 230 comprises a fan 231 and a driving component 232, wherein the fan 231 is rotatably installed in the cavity and positioned at the heat dissipation opening 221; referring to fig. 9, a first rotation shaft 223 is provided in the cavity at a position corresponding to the heat dissipation port 221, and the fan 231 is rotatably coupled to the first rotation shaft 223. The driving component 232 comprises a gear 233 and a rack 234, the gear 233 is fixedly connected with the fan 231 and is also rotatably arranged on the first rotating shaft 223, and the rack 234 is movably arranged in the cavity and is meshed with the gear 233; the gear 233 moves to drive the gear 233 to rotate, and the fan 231 is driven to rotate, so as to supply air to the stool 210 for heat dissipation.

It will be appreciated that the present utility model can use two heat dissipation methods, the first still using electric control, the fan 231 being connected to an external power source, or connected to a motor and powered by a built-in power source, so that the fan 231 can automatically rotate to dissipate heat; the second method adopts a manual method, and the rotation speed of the fan 231 can be controlled by adjusting the moving speed of the rack 234 according to the requirement by moving the rack 234 and rotating the gear 233 so as to drive the fan 231 to rotate; the electric control can also control the rotation speed of the fan 231, but the manual method has the following advantages compared with the electric control method: the manual method is not limited by a power supply, and the fan 231 can be driven to rotate by manually moving the rack 234 under the condition of insufficient power supply or incapacitation of supplying power, so that the situation that the heat dissipation function is invalid due to power failure can be avoided.

Preferably, because the step of manually moving the rack 234 is tired, the two methods can be combined, an electric control method can be used when the power supply is enough, and a manual method can be selected to dissipate heat when the power is cut or insufficient.

Referring to fig. 10, in a further embodiment of the present utility model, the heat dissipating structure 230 further includes a moving assembly 240, and the moving assembly 240 is connected to the rack 234 for controlling the rack 234 to reciprocate so as to drive the fan 231 to rotate continuously. When the rack 234 moves forward, the fan 231 rotates clockwise (as normal rotation), when the rack 234 moves backward, the fan 231 rotates counterclockwise (as reverse rotation), and since the length of the armrest 220 is limited, the length of the rack 234 is limited, and if the rack 234 moves forward or backward only, the end of the stroke of the rack 234 is reached soon, and the fan 231 stops rotating; therefore, in order to achieve the continuous rotation of the fan 231, the rack 234 needs to reciprocate, and when the rack 234 moves forward by a distance, it is reset backward, and the fan 231 rotates backward after rotating forward for a while, and the air can be continuously supplied to the heat dissipation port 221 although it is turned.

The moving assembly 240 comprises a rotating wheel 241 and a connecting rod 242, the rotating wheel 241 is arranged on one side of the rack 234, one end of the connecting rod 242 is hinged with the rotating wheel 241, the other end of the connecting rod 242 is hinged with the rack 234, and the rotating wheel 241 can drive the rack 234 to reciprocate through the connecting rod 242 when rotating.

Referring to fig. 10, in a further embodiment of the present utility model, a first connecting post 243 is provided on a circular surface of the rotating wheel 241, one end of a connecting rod 242 is hinged to the rotating wheel 241 through the first connecting post 243, one end of the rack 234, which is close to the rotating wheel 241, is provided with a second connecting post 235, and the other end of the connecting rod 242 is hinged to the rack 234 through the second connecting post 235. As the wheel 241 rotates, the horizontal position of the first connecting post 243 relative to the rack 234 moves, the distance between the first connecting post 243 and the rack 234 also changes, and the length of the link 242 is fixed, so that when the horizontal projection position of the first connecting post 243 moves back and forth, the link 242 rotates relative to the wheel 241 and the rack 234, and the horizontal projection length of the link 242 (which can be considered as the distance between the connecting post and the rack 234) also changes, thereby pulling or pushing the rack 234 forward or backward.

During the clockwise rotation of wheel 241: when the first link 243 is turned to the foremost end, the horizontal projection length of the link 242 is longest (when the link 242 is horizontal), and the rack 234 has been moved forward to a position closest to the wheel 241; when the first link 243 rotates from the foremost end to the highest point, the horizontal projection length of the link 242 becomes shortest, and the rack 234 moves rearward; when the first connecting post 243 continues to rotate to the rearmost end, the horizontal projection length of the connecting rod 242 again becomes longest, and the rack 234 has moved backward to a position farthest from the rotating wheel 241; when the first link 243 rotates from the rearmost end to the lowest point, the horizontal projection length of the link 242 becomes shortest, and the rack 234 moves forward; with the rotation of the rotating wheel 241, the rack 234 reciprocates back and forth, the driving gear 233 continuously rotates in the forward and reverse directions, and the fan 231 continuously and automatically rotates to dissipate heat.

Referring to fig. 8 to 9, the armrest 220 is provided at one end thereof in a length direction with a mounting port 224, the mounting port 224 communicates with the cavity, and the wheel 241 is rotatably mounted in the cavity and partially protrudes from the mounting port 224 to be manually rotated. Specifically, the front end and the rear end of the armrest 220 are provided with mounting openings 224, and the position of the cavity close to the mounting openings 224 is provided with a second rotating shaft 225. When the rotating wheel 241 is installed, an installation opening 224 can be selected, and the installation opening is installed on the second rotating shaft 225 and then is matched and connected with the rest structure to complete the assembly of the handrail 220; when it is desired to attach the armrest 220 to the bench 210, the end with the wheel 241 is directed away from the side of the chair back 100 so that the user sits on and then toggles the wheel 241 to control the rotation of the fan 231: when a user sits on the chair, the arms can rest on the armrests 220, and the fingers can be rotated downwards.

Referring to fig. 9 to 10, a guide groove 244 is formed in one inner wall (in this embodiment, the bottom wall of the cavity, the upper surface of the seat 215) of the cavity, the guide groove 244 has a width matching that of the rack 234 and extends in the front-rear direction of the seat 215, and the rack 234 is slidably mounted in the guide groove 244 and can move forward and backward along the guide groove 244, so that the rack 234 always moves in the front-rear direction without being deviated and is kept engaged with the gear 233.

Referring to fig. 9, the heat dissipation structures 230 are all installed in the cavity and protected by the armrests 220, in order to facilitate the installation of the heat dissipation structures 230, in some embodiments of the present utility model, the bottom of the armrests 220 is provided with an opening, and the bottom opening extends inward to form a cavity, that is, the bottom opening can be used to install components into the cavity, and the bottom of the armrests 220 is detachably connected to the surface of the stool 210, so as to facilitate the maintenance or replacement of the heat dissipation structures 230.

Referring to fig. 8, a dust screen 222 is detachably connected to the heat dissipation port 221 to prevent foreign matters or scraps from entering the heat dissipation port 221 and being involved in the fan 231, thereby affecting the normal rotation of the fan 231.

Referring to fig. 8, further, two opposite sides of the two armrests 220 are provided with heat dissipation openings 221, the heat dissipation structures 230 are provided with two groups and are respectively installed at the corresponding heat dissipation openings 221, when a user sits on the chair, the user can toggle the rotating wheels 241 on two sides simultaneously, and both the left side and the right side can dissipate heat, so that the heat dissipation effect is improved, and the use experience feeling under the dryness-heat environment is improved.

The massage function of the chair back 100 is used as follows: when the user needs to massage, the mounting cover 113 is removed, the supporting part 121 is rotated outwards, the second connecting shaft 123 is opposite to the fixing hole 112, and at this time, the massage part 125 extends out of the mounting groove 111; pushing the fixing rod 130 to enable the transmission block 131 on the transmission part to be inserted into the transmission groove 124 on the second connecting shaft 123, namely switching to a massage state; after each group of massage components 120 is switched to the massage state, the user leans against the backrest 110, hands extend to the side wall of the backrest 110, and the massage components 120 can be controlled to massage by rotating any knob 142. After the massage is finished, the fixing rod 130 is pulled outwards to separate the transmission block 131 from the transmission groove 124, and then the supporting part 121 is rotated inwards to be attached to the inner wall of the mounting groove 111, namely, the storage state is switched; after each set of massage assemblies 120 is switched to the storage state, the mounting cover 113 is covered.

The heat dissipation function of the seat 200 is implemented by the following steps: the heat dissipation structure 230 is installed into the cavity to form the armrest 220, and then the armrest 220 is installed to the side of the stool 210; the rotating wheel 241 is rotated, the connecting rod 242 connected with the rotating wheel 241 rotates along with the rotating wheel, the rack 234 is pulled to reciprocate, the gear 233 meshed with the rack 234 is driven by the rack 234 to start rotating, the fan 231 is driven to rotate, and heat and air are radiated.

The method for folding the office chair comprises the following steps: switching the massage assembly 120 to the storage state, and covering the mounting cover 113; the chair back 100 is rotated to be attached to the chair seat 200, and the support cylinders of the support 211 are slid and retracted to the minimum configuration.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present utility model have been described in detail hereinabove with reference to the accompanying drawings, but the present utility model is not limited to the embodiments described hereinabove, and various changes, modifications, substitutions and alterations can be made therein by those skilled in the art without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims (10)

1. Multifunctional office chair convenient to accomodate, its characterized in that includes:

the chair back (100) comprises a backrest (110) and a massage assembly (120), wherein the backrest (110) is provided with a mounting groove (111), and the massage assembly (120) is movably arranged in the mounting groove (111); the massage assembly (120) has a massage state and a storage state, and when the massage assembly (120) is in the massage state, part of the massage assembly (120) can extend out of the mounting groove (111) to contact with the waist and the back of a user; when the massage assembly (120) is in the storage state, the massage assembly (120) can be stored in the mounting groove (111);

the chair seat (200) comprises a stool (210) and armrests (220), wherein the stool (210) is hinged with the lower end of the backrest (110), the two armrests (220) are respectively arranged on two opposite side edges of the stool (210), and at least one armrest (220) is provided with a heat dissipation structure (230) for dissipating heat of the stool (210); the space between the two armrests (220) can be used for the chair back (100) to rotate, when the massage assembly (120) is in the storage state, the backrest (110) can rotate to be attached to the surface of the stool (210), and the chair back (100) and the chair seat (200) can be folded.

2. The multifunctional office chair convenient to store according to claim 1, wherein: the stool (210) comprises a seat (215) and a bracket (211), the backrest (110) is hinged with the seat (215), and the armrests (220) are arranged on the seat (215); the support (211) is arranged below the seat (215) to support the seat (215), and the support (211) is telescopic and is used for adjusting the height of the seat (215).

3. The multifunctional office chair convenient to store according to claim 1, wherein: the massage assembly (120) comprises a supporting part (121) and a massage part (125), one end of the supporting part (121) is rotatably connected in the mounting groove (111), and the other end of the supporting part is connected with the massage part (125); the support part (121) rotates to switch the state of the massage assembly (120), when the massage assembly (120) is switched to the massage state, the support part (121) rotates outwards of the mounting groove (111) to enable the massage part (125) to partially extend out of the mounting groove (111), and the position of the massage part (125) is fixed through a fixing structure; when the massage assembly (120) is switched to the storage state, the supporting part (121) rotates into the mounting groove (111), and the supporting part (121) and the massage part (125) are both accommodated in the mounting groove (111).

4. A multifunctional office chair for easy storage according to claim 3, wherein: a fixing hole (112) is formed in the side wall of the mounting groove (111), and the fixing hole (112) extends towards the direction away from the mounting groove (111) and penetrates through the backrest (110); the securing structure is capable of passing through the securing aperture (112) and connecting with the massage assembly (120) to position the massage assembly (120) when the massage assembly (120) is in the massage condition.

5. The multifunctional office chair for easy storage according to claim 4, wherein: be equipped with first connecting axle (122) in mounting groove (111), supporting part (121) one end articulate in on first connecting axle (122), the other end rotates and is connected with second connecting axle (123), massage portion (125) wear to locate on second connecting axle (123) and with second connecting axle (123) are fixed.

6. The multifunctional office chair for easy storage according to claim 5, wherein: the fixing structure comprises a fixing rod (130) and a transmission part, the transmission part is arranged at one end of the fixing rod (130), the fixing rod (130) is matched with the fixing hole (112), the fixing rod (130) can penetrate through the fixing hole (112) to enable the transmission part to extend into the mounting groove (111) to be connected with the second connecting shaft (123), and the second connecting shaft (123) can be driven to rotate by rotation of the fixing rod (130) and drive the massage part (125) to rotate to massage.

7. The multifunctional office chair for easy storage according to claim 6, wherein: a plurality of groups of massage components (120) are arranged in the mounting groove (111), and the massage components (120) are distributed at intervals along the length direction of the mounting groove (111); one end of the fixed rod (130) far away from the transmission part is provided with a driving wheel (140), a plurality of groups of driving wheels (140) connected with the massage components (120) are connected through transmission of a transmission belt (141), one driving wheel (140) can rotate to drive the other driving wheels (140) to synchronously rotate, so that the massage components (120) can massage simultaneously.

8. The multifunctional office chair convenient to store according to claim 1, wherein: a heat dissipation opening (221) is formed in the handrail (220), a cavity is formed in the handrail (220), and the heat dissipation opening (221) is communicated with the cavity; the heat dissipation structure (230) comprises a fan (231) and a driving assembly (232), the fan (231) is rotatably installed in the cavity and located at the heat dissipation opening (221), the driving assembly (232) comprises a gear (233) and a rack (234), the gear (233) is fixedly connected with the fan (231), and the rack (234) is movably arranged in the cavity and meshed with the gear (233); the gear (233) moves to drive the gear (233) to rotate, and the fan (231) is driven to rotate, so that air is supplied to the stool (210) for heat dissipation.

9. The multifunctional office chair for easy storage according to claim 8, wherein: the heat dissipation structure (230) further comprises a moving assembly (240), wherein the moving assembly (240) is connected with the rack (234) and is used for controlling the rack (234) to reciprocate so as to drive the fan (231) to rotate continuously; the moving assembly (240) comprises a rotating wheel (241) and a connecting rod (242), the rotating wheel (241) is arranged on one side of the rack (234), one end of the connecting rod (242) is hinged to the rotating wheel (241), the other end of the connecting rod is hinged to the rack (234), and the rotating wheel (241) can drive the rack (234) to move in a reciprocating mode through the connecting rod (242) when rotating.

10. The multifunctional office chair for easy storage according to claim 9, wherein: a first connecting column (243) is arranged on the round surface of the rotating wheel (241), and one end of the connecting rod (242) is hinged to the rotating wheel (241) through the first connecting column (243); the rotating wheel (241) rotates, and the horizontal position of the connecting column relative to the rack (234) moves along with the rotating wheel so as to drive the rack (234) to move.

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