CN115462639A - Turnover chair - Google Patents

Abstract

The invention discloses a turnover chair which comprises a chair body, a cushion and a turnover assembly, wherein the cushion is arranged on the chair body in a turnover manner and is provided with a rotation axis, the turnover assembly comprises a first connecting part, a second connecting part and an elastic reset piece, one of the first connecting part and the second connecting part is connected with the chair body, the other one of the first connecting part and the second connecting part is connected with the cushion, the second connecting part is provided with a plurality of connecting structures which are circumferentially arranged around the rotation axis, the rotation axis is sleeved with the elastic reset piece, one end of the elastic reset piece is connected with the first connecting part, and the other end of the elastic reset piece is connected with one of the connecting structures. The invention can adjust the elastic restoring force provided by the elastic restoring piece, so that the elastic restoring force is proper, the cushion is convenient to turn down, and the cushion can be kept in a nearly vertical state when not in use, thereby being more convenient for users to use.

Description

Turnover chair

Technical Field

The invention relates to the technical field of furniture, in particular to a turnover chair.

Background

The seat cushion of part of the chair has an upturning function so as to reduce the occupied space when not in use. Among the correlation technique, be equipped with elasticity such as torsional spring and reset the piece between cushion and the chair body, elasticity that elasticity reset the piece and provide makes the cushion have the tendency of turning up, and is more laborsaving when not only making the cushion turn up, has increased user experience and has felt, turns up to when being close vertical state on the cushion moreover, can make the cushion keep in this state. However, in the using process, the elastic restoring force provided by the elastic restoring piece is easily too large or too small, so that the cushion is difficult to turn downwards or cannot be kept in a nearly vertical state, and the use is inconvenient for users.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the turnover chair which can adjust the elastic restoring force provided by the elastic restoring piece and is more convenient for users to use.

The turnover chair comprises a chair body, a seat cushion and a turnover assembly, wherein the seat cushion is arranged on the chair body in a turnover mode, the seat cushion is provided with a rotating axis, the turnover assembly comprises a first connecting part, a second connecting part and an elastic reset piece, one of the first connecting part and the second connecting part is connected with the chair body, the other connecting part is connected with the seat cushion, the second connecting part is provided with a plurality of connecting structures circumferentially arranged around the rotating axis, the rotating axis is sleeved with the elastic reset piece, one end of the elastic reset piece is connected with the first connecting part, and the other end of the elastic reset piece is connected with one of the connecting structures.

The turnover chair provided by the embodiment of the invention at least has the following beneficial effects:

according to the turnover chair provided by the embodiment of the invention, the cushion has the tendency of turning upwards by the elastic restoring force provided by the elastic restoring piece, so that the cushion is more labor-saving when turned upwards, and can be kept in the state when the cushion is turned upwards to be close to the vertical state, and the condition of sudden falling cannot occur. The second connecting portion are equipped with a plurality of connection structures around the rotation axis of cushion, when elasticity resets and is connected with the connection structure of difference, can adjust the elasticity restoring force that elasticity reset the piece and provide, make the elasticity restoring force size that elasticity reset the piece and provide suitable to not only make the cushion turn over down conveniently, when not using, can make the cushion keep being close vertical state moreover, user's use is more convenient.

According to some embodiments of the present invention, the turnover assembly further includes a mounting shaft disposed on the chair body, an axis of the mounting shaft coincides with the rotation axis, the elastic restoring member is sleeved on the mounting shaft, the first connecting portion is connected to the seat cushion and rotatably sleeved on the mounting shaft, and the second connecting portion is connected to the mounting shaft and relatively fixed to the mounting shaft along a circumferential direction.

According to some embodiments of the present invention, the seat cushion can be turned upwards to a first setting position, the first connecting portion is provided with a first protruding block, the turning assembly further includes a fixing portion provided on the chair body, the fixing portion is provided with a second protruding block, and when the seat cushion is turned upwards to the first setting position, the first protruding block abuts against the second protruding block to limit the seat cushion from continuing to turn.

According to some embodiments of the present invention, the fixing portion is rotatably mounted to the chair body, a fastening member for limiting rotation of the fixing portion is disposed between the fixing portion and the chair body, the mounting shaft is connected to the fixing portion, the first protrusion is disposed on a side of the first connecting portion facing away from the elastic restoring member, the first protrusion is configured to abut against a side surface of the second protrusion to define a stop surface, and a side surface of the first protrusion facing away from the stop surface is configured as an inclined surface, so that when the fixing portion is rotated, the second protrusion can pass through the first protrusion from the side of the first protrusion facing away from the stop surface.

According to some embodiments of the present invention, the connection structure includes a jack disposed on the second connection portion, and an end of the elastic reset piece away from the first connection portion is plugged into the jack.

According to some embodiments of the present invention, two of the first connecting portions, two of the second connecting portions, and two of the elastic resetting members are correspondingly disposed, the two second connecting portions are respectively located on opposite sides of the two elastic resetting members, at least one friction plate is sleeved between the two second connecting portions of the mounting shaft, and at least one friction plate is connected to the seat cushion.

According to some embodiments of the present invention, at least one side of the mounting shaft is provided with a first limiting surface along an axial direction of the mounting shaft, the second connecting portion is sleeved on the mounting shaft, an inner side wall of the second connecting portion is correspondingly provided with a second limiting surface, the second limiting surface is matched with the first limiting surface to prevent the second connecting portion from rotating relative to the mounting shaft, the cushion is provided with an accommodating hole in which the mounting shaft is sleeved, the first connecting portion, the second connecting portion, the elastic reset member and the friction plates are all located in the accommodating hole, a hole wall of the accommodating hole is provided with a clamping groove extending along the axial direction of the accommodating hole and having at least one end penetrating through, the first connecting portion and at least one of the friction plates are provided with a clamping block, and the clamping block is clamped in the clamping groove.

According to some embodiments of the invention, the mounting shaft is in threaded connection with two adjusting nuts, and the two adjusting nuts abut against the sides of the two second connecting parts, which are away from each other.

According to some embodiments of the invention, the reversible chair further comprises a backrest slidably mounted to the chair body, the backrest being slidable upwardly relative to the chair body to allow the backrest to be removed from the chair body.

According to some embodiments of the invention, the seat cushion is capable of being flipped down to a second set position, the seat cushion is provided with an abutting portion that abuts the seat body when the seat cushion is flipped down to the second set position; or the chair body is provided with a supporting part, and when the seat cushion is turned downwards to the second set position, the supporting part supports the seat cushion so as to limit the seat cushion to continuously rotate.

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

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the overall structure of a reversible chair according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the backrest separated from the chair body;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic structural view of the flip assembly of FIG. 3;

FIG. 5 is an exploded view of the flip assembly of FIG. 3;

FIG. 6 is a schematic structural view of the first connecting portion and the fixing portion in FIG. 5;

fig. 7 is a schematic position diagram of the abutting portion.

Reference numerals:

a chair body 100; a backrest 110; a back fixing member 111; a backrest body 112; a second mounting groove 113; a mounting plate 120; a fixed frame 130; a fixing plate 131; mounting holes 132; a mounting ring 133; a decorative end cap 134; a first mounting groove 135;

a seat cushion 200; a receiving hole 210; a card slot 211; an abutment portion 220; a cushion fixing member 230; a seat cushion body 240; a mounting cylinder 250;

a flip assembly 300; a first connection portion 310; a first bump 311; a stop surface 312; an inclined surface 313; a second connection portion 320; the connecting structure 321; a second limiting surface 322; an elastic restoring member 330; a mounting shaft 340; a first stopper surface 341; a fixed portion 350; the second bump 351; a third limiting surface 352; a hexagonal hole 353; a friction plate 360; the nut 370 is adjusted.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the positional descriptions, such as the directions of upper, lower, front, rear, inner, outer, top, bottom, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood 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 invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

With the development of science and technology, household products are rapidly developed, wherein the types of chairs are more and more, the bath chair is one of the chairs, the cushion of most of the existing bath chairs does not have the function of turning upwards, and when the chair is not used, the occupied space is large, and the practicability is poor.

In the related art, a part of the seat cushions of the bath chair are designed with an upturning function so as to reduce the occupied space when not in use. Specifically, be equipped with elasticity such as torsional spring between cushion and the chair body and reset the piece, elasticity that elasticity reset the piece and provide makes the cushion have the tendency of turning up, and is more laborsaving not only when the cushion turns up, has increased user experience and has felt, turns up to when being close vertical state on the cushion moreover, can make the cushion keep in this state. However, in the using process, the elastic restoring force provided by the elastic restoring piece is easily too large or too small, the cushion is difficult to turn over downwards due to the too large elastic restoring force, the cushion cannot be kept in a close vertical state due to the too small elastic restoring force, and the use is inconvenient for users.

A tumble chair according to an embodiment of the present invention is described below with reference to fig. 1 to 7.

As shown in fig. 1 to 5, the tumble chair according to the embodiment of the first aspect of the present invention includes a chair body 100, a seat cushion 200, and a tumble assembly 300.

The seat cushion 200 is arranged on the chair body 100 in a reversible manner, the seat cushion 200 has a rotation axis, the turnover assembly 300 comprises a first connecting portion 310, a second connecting portion 320 and an elastic reset piece 330, one of the first connecting portion 310 and the second connecting portion 320 is connected with the chair body 100, the other one is connected with the seat cushion 200, the second connecting portion 320 is provided with a plurality of connecting structures 321 circumferentially arranged around the rotation axis of the seat cushion 200, the rotation axis of the seat cushion 200 is sleeved with the elastic reset piece 330, one end of the elastic reset piece 330 is connected with the first connecting portion 310, and the other end of the elastic reset piece 330 is connected with one of the connecting structures 321.

For example, as shown in fig. 1 to 5, the chair body 100 may include a backrest 110, a mounting plate 120 and a fixing frame 130, the mounting plate 120 may be installed on a wall through fasteners such as pop screws, the fixing frame 130 is vertically provided with a fixing plate 131, the end surface of the fixing plate 131 close to the mounting plate 120 is provided with first mounting grooves 135 with both sides running through, the mounting plate 120 is clamped in the first mounting grooves 135 and can be drawn out from both sides of the first mounting grooves 135, the bottom of the fixing plate 131 is vertically provided with fastening screws and is connected with the mounting plate 120 through the fastening screws, and thus the chair body 100 is more convenient to assemble and disassemble, and the fastening screws are not easy to expose, and the whole of the convertible chair is more beautiful. The backrest 110 may include a backrest fixing member 111 disposed on the fixing frame 130 and a backrest body 112 disposed on the backrest fixing member 111, the seat cushion 200 may include a seat cushion fixing member 230 reversibly disposed on the fixing frame 130 and a seat cushion body 240 disposed on the seat cushion fixing member 230, the first connecting portion 310 may be connected to the seat cushion fixing member 230 of the seat cushion 200, and the second connecting portion 320 may be connected to the fixing frame 130 of the chair body 100. When the cushion 200 is in a state close to the horizontal state or inclined upward along a rotation axis away from the cushion 200, the elastic restoring members 330 can both twist and generate elastic restoring force, the elastic restoring force can make the cushion 200 have a tendency of turning upward, and when the cushion 200 does not receive other external force, the cushion 200 can turn upward to a state close to the vertical state under the effect of the elastic restoring force of the elastic restoring members 330.

According to the turnover chair provided by the embodiment of the invention, the cushion 200 has the tendency of being turned upwards by the elastic restoring force provided by the elastic restoring piece 330, so that the labor is saved when the cushion 200 is turned upwards, and when the cushion 200 is turned upwards to be close to a vertical state, the cushion 200 can be kept in the state without suddenly falling down, and in addition, when the cushion 200 is turned downwards, the cushion 200 can be prevented from suddenly falling down. According to the turnover chair of the embodiment of the invention, the second connecting part 320 is provided with a plurality of connecting structures 321 around the rotation axis of the seat cushion 200, one end of the elastic resetting piece 330 far away from the first connecting part 310 is connected with one of the connecting structures 321, when one end of the elastic resetting piece 330 far away from the first connecting part 310 is connected with the other connecting structures 321, the torsion degree of the elastic resetting piece 330 can be adjusted, so that the elastic restoring force provided by the elastic resetting piece 330 is adjusted, and the size of the elastic restoring force provided by the elastic resetting piece 330 is proper, so that the seat cushion 200 can be turned down conveniently, and when the seat cushion 200 is not used, the seat cushion 200 can be kept in a nearly vertical state, and the use is more convenient for users.

First, the chair body 100 may have other structures, for example, support legs may be provided and supported on the ground through the support legs, the fixing frame 130 and the mounting plate 120 may be welded or integrally formed, or the backrest 110 may not be provided, and the mounting plate 120 may be mounted on a wall and then the back of the human body may be supported through the wall. Next, the first connecting portion 310 may be connected to the chair body 100, and the second connecting portion 320 may be connected to the seat cushion 200. The backrest 110 may have another structure, for example, an integrally molded structure, and the seat cushion 200 may have another structure, for example, an integrally molded structure. In addition, a plurality of connection 321 can evenly arrange along circumference around the axis of rotation of cushion 200, and quantity can be confirmed according to actual conditions, and connection 321 evenly arranges, and elastic restoring force's regulation is more even, and of course, a plurality of connection 321 also can not evenly arrange. The elastic restoring member 330 may be of various types, for example, a torsion spring, a common spring, a spiral spring, etc., and only needs to generate different elastic restoring forces when connected to different connecting structures 321. The connection structure 321 may be of various types, for example, the connection structure 321 may be a jack provided on the second connection portion 320, and one end of the elastic reset piece 330 is directly inserted into the jack, so that the installation is more convenient. The connecting structure 321 may also be a threaded hole formed in the second connecting portion 320, an installation head is arranged at one end of the elastic resetting piece 330, the installation head is connected with the threaded hole through a bolt, the connecting structure 321 may also be a screw rod formed in the second connecting portion 320, an installation head is arranged at one end of the elastic resetting piece 330, the installation head is provided with a through hole, the screw rod is sleeved with the through hole, and then the screw rod is locked through a nut.

In a further embodiment of the present invention, as shown in fig. 5, the flipping module 300 further includes a mounting shaft 340 disposed on the chair body 100, an axis of the mounting shaft 340 coincides with a rotation axis of the seat cushion 200, the elastic restoring member 330 is sleeved on the mounting shaft 340, the first connecting portion 310 is connected to the seat cushion 200, the first connecting portion 310 has a through hole and is rotatably sleeved on the mounting shaft 340 through the through hole, and the second connecting portion 320 is connected to the mounting shaft 340 and is circumferentially fixed to the mounting shaft 340. When the seat cushion 200 is turned downward, the first connecting portion 310 can be driven to rotate relative to the mounting shaft 340, and the second connecting portion 320 is connected to the mounting shaft 340, so that the first connecting portion 310 and the second connecting portion 320 can rotate relative to each other, and the elastic restoring member 330 is twisted to generate an elastic restoring force. Set up installation axle 340, can avoid elasticity to reset when piece 330 twists reverse to take place great deformation, locate installation axle 340 with first connecting portion 310 cover in addition, installation axle 340 is connected to second connecting portion 320, and then make first connecting portion 310, elasticity reset piece 330 and second connecting portion 320 can cooperate more accurately, thereby adjust the effect that elasticity reset piece 330 elastic restoring force better.

It can be understood that the first connecting portion 310 may also be connected to the mounting shaft 340 and fixed relative to the mounting shaft 340 along the circumferential direction, and the second connecting portion 320 is connected to the seat cushion 200 and rotatably sleeved on the mounting shaft 340.

Further, as shown in fig. 4 to 6, the seat cushion 200 can be turned upwards to the first setting position, the first connecting portion 310 is provided with a first protruding block 311, the turning assembly 300 further includes a fixing portion 350 provided on the chair body 100, the fixing portion 350 is provided with a second protruding block 351, and when the seat cushion 200 is turned upwards to the first setting position, the first protruding block 311 abuts against the second protruding block 351 to limit the seat cushion 200 from continuing to turn. First settlement position is also the position that the cushion 200 turned over to vertical state or be close to vertical state upwards, when the cushion 200 turned over upwards, first lug 311 was followed and is moved, when the cushion 200 turned over to first settlement position upwards, the front side butt second lug 351 of first lug 311 moving direction can restrict the cushion 200 through the cooperation of first lug 311 and second lug 351 and continue the upset to can avoid the cushion 200 to collide with back 110 or wall mutually. It should be noted that the first protrusion 311 may be disposed on a side of the fixing portion 350 away from the elastic restoring member 330, a side close to the elastic restoring member 330, or other positions.

Further, as shown in fig. 4 to 6, the fixing portion 350 is rotatably mounted to the chair body 100, a fastening member is disposed between the fixing portion 350 and the chair body 100, the fastening member is used for limiting the rotation of the fixing portion 350, the mounting shaft 340 and the fixing portion 350 can be coaxially connected, the first protrusion 311 is disposed on a side of the first connecting portion 310 away from the elastic restoring member 330, the first protrusion 311 is used for abutting against a side surface of the second protrusion 351 to define a stop surface 312, and a side surface of the first protrusion 311 away from the stop surface 312 is provided with an inclined surface 313, so that when the fixing portion 350 is rotated, the second protrusion 351 can pass through the first protrusion 311 from a side of the first protrusion 311 away from the stop surface 312.

Specifically, the outer side wall of the fixing portion 350 is substantially cylindrical, the seat body 100 is provided with a mounting hole 132, and the axis of the mounting hole 132 may coincide with the rotation axis of the seat cushion 200. When the turnover component 300 is installed, the fixing portion 350 is installed in the installation hole 132 in a matching manner, the seat cushion 200 is rotated upward to a first set position, and the seat cushion 200 is made to be stationary, then the fixing portion 350 is rotated, the fixing portion 350 drives the second connecting portion 320 to rotate through the installation shaft 340, when the fixing portion 350 continues to rotate, and the second protrusion 351 is abutted to the inclined surface 313 of the first protrusion 311, because the inclined surface 313 is inclined, and the elastic resetting member 330 on the other side of the first connecting portion 310 can extend and retract, and further the first connecting portion 310 can slide along the axial direction of the installation shaft 340 under the extrusion force exerted by the second protrusion 351, thereby facilitating the second protrusion 351 to pass through the first protrusion 311, and enabling the stop surface 312 of the first protrusion 311 to be abutted to the second protrusion 351, in the process, because the first connecting portion 310 is connected to the seat cushion 200, and is also stationary, further, the elastic resetting member 330 can be twisted to generate an initial elastic restoring force, the initial elastic restoring force can enable the seat cushion 200 to be kept in a state close to be vertical, and then the fixing portion 350 can be fixed on the seat body 100 through a fastener.

Further, as shown in fig. 6, two or three first protrusions 311 are uniformly arranged on one side of the first connecting portion 310 away from the elastic restoring member 330 along the circumferential direction, and two or three second protrusions 351 are correspondingly arranged on the fixing portion 350. Further, the fixing part 350 can be rotated by different angles, so that initial elastic restoring forces of different magnitudes can be generated according to actual conditions. After a long time of use, when the elastic effect of the elastic restoring member 330 is reduced to reduce the initial elastic restoring force, the fastening member is removed, and the fixing portion 350 is rotated again, so that the initial elastic restoring force can be adjusted, and the seat cushion 200 can still be maintained in a state close to the vertical state. It should be noted that only two or three first protruding blocks 311 and second protruding blocks 351 are provided, so as to facilitate the seat cushion 200 to be turned ninety degrees.

In some embodiments of the present invention, as shown in fig. 4 and fig. 5, two first connecting portions 310, two second connecting portions 320 and two elastic resetting members 330 are correspondingly disposed, the two second connecting portions 320 are respectively located at opposite sides of the two elastic resetting members 330, the two first connecting portions 310 are respectively located at opposite sides of the two elastic resetting members 330, at least one friction plate 360 is sleeved between the two second connecting portions 320 of the mounting shaft 340, and at least one friction plate 360 is connected to the seat cushion 200. The elastic reset pieces 330 are arranged in two, so that the elastic restoring force applied to the seat cushion 200 is more uniform, and the effect that the seat cushion 200 tends to turn upwards is better. In addition, set up friction disc 360, to friction disc 360 be provided with a plurality of as an example, friction disc 360 receives the extrusion of two second connecting portion 320, two adjacent friction discs 360 laminate mutually, have a friction disc 360 to connect cushion 200 at least, when cushion 200 overturns, have a friction disc 360 to follow the rotation at least, and then all there is the friction damping between two adjacent friction discs 360 and between second connecting portion 320 and the adjacent friction disc 360, thereby can cooperate elasticity piece 330 that resets to further improve the experience when cushion 200 overturns and feel, and when cushion 200 overturns to being close vertical state, can further make cushion 200 keep at this state.

It should be noted that there may be only one friction plate 360, and the friction plate 360 is provided with a through hole and rotatably sleeved on the mounting shaft 340 through the through hole. In addition, two fixing portions 350 may be correspondingly disposed, and the two fixing portions 350 may be connected to two ends of the mounting shaft 340, so that the mounting shaft 340 is more stably mounted, and the first connecting portion 310 can be prevented from sliding out of the two ends of the mounting shaft 340.

In a further embodiment of the present invention, as shown in fig. 5, at least one side of the mounting shaft 340 is provided with a first limiting surface 341 along an axial direction of the mounting shaft 340, the second connecting portion 320 is sleeved on the mounting shaft 340, an inner side wall of the second connecting portion 320 is correspondingly provided with a second limiting surface 322, the second limiting surface 322 is matched with the first limiting surface 341 to prevent the second connecting portion 320 from rotating relative to the mounting shaft 340, the seat cushion 200 is provided with a receiving hole 210 sleeved on the mounting shaft 340, the first connecting portion 310, the second connecting portion 320, the elastic restoring member 330 and the friction plate 360 are all located in the receiving hole 210, a hole wall of the receiving hole 210 is provided with a clamping groove 211 extending along the axial direction of the receiving hole 210 and having at least one end penetrating therethrough, and the first connecting portion 310 and at least one friction plate 360 are provided with clamping blocks, and the clamping blocks are clamped in the clamping groove 211. Specifically, the lateral wall of first connecting portion 310, the lateral wall of second connecting portion 320 and the lateral wall of the friction disc 360 of connection cushion 200 all can be cylindrically, and then upset subassembly 300 can form a structure similar to the cylinder, the cushion 200 rotates the cover through accomodating hole 210 and establishes upset subassembly 300, and then indirectly rotate and connect chair body 100, the fixture block can be taken out from the one end of draw-in groove 211, when cushion 200 and upset subassembly 300 need be dismantled, detach the fastener between fixed part 350 and the chair body 100, then take upset subassembly 300 out from the one end of accomodating hole 210, later take off the cushion 200 can, high durability and convenient operation, time saving and labor saving.

It should be noted that one or more first limit surfaces 341 may be provided, for example, one first limit surface 341 may be provided on each of two opposite sides of the mounting shaft 340. The second connecting portion 320 has a through hole and a mounting shaft 340 is disposed on the through hole, and the second limiting surface 322 is disposed on the inner sidewall of the through hole. The first connecting portion 310 and the at least one friction plate 360 may be connected to the seat cushion 200 in other ways, for example, may be bolted to the seat cushion 200. The second connecting portion 320 may also be fixed relative to the mounting shaft 340 in the circumferential direction by other means, for example, a locking bolt is disposed between the second connecting portion 320 and the mounting shaft 340. The seat cushion 200 may also be directly connected to the chair body 100 instead of being sleeved with the turnover assembly 300, and only needs to be able to connect the first connecting portion 310 and the at least one friction plate 360.

When two fixing portions 350 are provided, the fixing frame 130 of the chair body 100 may be provided with two mounting rings 133 side by side, the mounting hole 132 for mounting the fixing portion 350 is provided on the mounting ring 133, the first connecting portion 310, the second connecting portion 320, the elastic reset member 330 and the friction plate 360 are located between the two mounting rings 133, so as to allow the cushion 200 to be sleeved, one side of the two mounting rings 133 departing from each other may be provided with a decorative end cover 134, one side of the fixing portion 350 near the mounting shaft 340 may be provided with a matching hole for inserting the mounting shaft 340, a hole wall of the matching hole is provided with a third limiting surface 352 matched with the first limiting surface 341, the third limiting surface 352 is matched with the first limiting surface 341 to prevent the fixing portion 350 from rotating relative to the mounting shaft 340, in addition, the fixing portion 350 and the mounting shaft 340 are further provided with screws, and further, the fixing portion 350 and the mounting shaft 340 are connected and can rotate together. Of course, the fixing portion 350 and the mounting shaft 340 may be directly connected by screws. A hexagonal hole 353 may be formed in a side of the fixing portion 350 away from the mounting shaft 340, so that a worker can conveniently rotate the fixing portion 350 by using an allen key.

Further, as shown in fig. 5, a connecting thread is disposed on a portion of the outer side wall of the mounting shaft 340 outside the first limiting surface 341, the mounting shaft 340 is connected with two adjusting nuts 370 through the connecting thread, and the two adjusting nuts 370 respectively abut against a side of the two second connecting portions 320 that are away from each other. The adjusting nut 370 is rotated, so that the pressing degree of the two second connecting portions 320 on the friction plates 360 can be adjusted, the friction damping between the two adjacent friction plates 360 and between the second connecting portion 320 and the adjacent friction plate 360 can be adjusted according to actual needs, and the practicability is better. And the installation axle 340 sets up first spacing face 341, still sets up connecting thread, not only can make second connecting portion 320 and installation axle 340 relatively fixed along the circumference, can install adjusting nut 370 moreover, design benefit.

In some embodiments of the present invention, as shown in fig. 1 to 3, the reversible chair further comprises a backrest 110, the backrest 110 is slidably disposed on the chair body 100, the backrest 110 can slide upward relative to the chair body 100, and the backrest 110 can be detached from the chair body 100 during the upward sliding process. For example, the back of back 110 can be equipped with the second mounting groove 113 that the bottom runs through, and the overall structure that forms after the mutual joint of mounting panel 120 and fixed plate 131 can cooperate the card in second mounting groove 113, through the action of gravity of back 110 self, can avoid back 110 to move up at will to realize back 110's installation, when needing to dismantle back 110, slide up take out back 110 can, easy operation is convenient. The backrest 110 may be slidably mounted on the chair body 100 by other means, for example, a guide rail may be vertically arranged on the chair body 100, and the backrest 110 is correspondingly provided with a slider and slidably mounted on the guide rail by the slider.

In some embodiments of the present invention, as shown in fig. 5 and 7, the seat cushion 200 can slide downward to the second set position, the seat cushion 200 is provided with an abutting portion 220, and the abutting portion 220 abuts against the seat body 100 when the seat cushion 200 is flipped downward to the second set position. For example, cushion 200 still includes an installation section of thick bamboo 250, the lateral wall of an installation section of thick bamboo 250 is located to cushion mounting 230, an installation section of thick bamboo 250 is equipped with accomodate hole 210 and rotates the cover through accomodating hole 210 and establish upset subassembly 300, butt portion 220 can set up in the arc arch of one side that installation section of thick bamboo 250 lateral wall deviates from cushion mounting 230, the mount 130 correspondence of chair body 100 is equipped with the arc concave surface, overturn to the second settlement position down when cushion 200, also be close the position of horizontality, the protruding butt arc concave surface of arc, can prevent through the protruding cooperation with the arc concave surface of arc that cushion 200 continues to rotate. Of course, the seat body 100 may be provided with a supporting portion that supports the seat cushion 200 when the seat cushion 200 is turned downward to the second set position, that is, the position close to the horizontal state, and similarly can restrict the seat cushion 200 from continuing to rotate. It is understood that the abutting portion 220 may have other structures, for example, a block-shaped structure disposed on a side of an outer side wall of the mounting tube 250 away from the seat cushion fixing member 230, and when the seat cushion 200 is turned downward to the second setting position, a top surface of the abutting portion 220 abuts against a bottom surface of the fixing frame 130 of the seat body 100, and the seat cushion 200 is also restricted from further rotating.

A tumble chair according to an embodiment of the present invention will be described in detail in one specific embodiment with reference to fig. 1 to 7. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting.

The tumble chair includes a chair body 100, a seat cushion 200, and a tumble assembly 300.

The chair body 100 includes a backrest 110, a mounting plate 120, and a fixing frame 130. The mounting plate 120 is mounted to the wall by a pop screw. The vertical fixed plate 131 that is equipped with of mount 130, the terminal surface that fixed plate 131 is close to mounting panel 120 is equipped with the first mounting groove 135 that both sides run through, mounting panel 120 joint is taken out in first mounting groove 135 and can follow the both sides of first mounting groove 135, the vertical fastening screw that is equipped with in bottom of fixed plate 131 is connected with mounting panel 120 through fastening screw, mount 130 is equipped with two collars 133 side by side, collar 133 is equipped with mounting hole 132, one side that two collars 133 deviate from mutually is equipped with decorates end cover 134. Backrest 110 includes backrest mounting 111 and locates the backrest body 112 on the backrest mounting 111, and the back of backrest mounting 111 is equipped with the second mounting groove 113 that the bottom runs through, and the overall structure cooperation card that forms after mounting panel 120 and the mutual joint of fixed plate 131 is in second mounting groove 113, and when backrest 110 need be dismantled, it can to slide up and take out backrest 110.

Cushion 200 includes cushion mounting 230 and locates the cushion body 240 on cushion mounting 230, the one end of cushion mounting 230 is equipped with installation section of thick bamboo 250, installation section of thick bamboo 250 is equipped with the hole 210 of accomodating that both ends run through and rotates the cover through accomodating hole 210 and establishes upset subassembly 300, the pore wall of accomodating hole 210 is equipped with along the axial extension of accomodating hole 210 and the draw-in groove 211 that at least one end runs through, one side that the lateral wall of installation section of thick bamboo 250 deviates from cushion mounting 230 is equipped with butt portion 220, butt portion 220 sets up to the arc arch, when cushion 200 upset down to being close the horizontality, butt portion 220 butt mount 130, continue to rotate with restriction cushion 200.

The flipping module 300 includes a mounting shaft 340, two first connecting portions 310, two second connecting portions 320, two elastic restoring members 330, three friction plates 360, two adjusting nuts 370, and two fixing portions 350. The fixing portion 350 is installed in the mounting hole 132 in a matched mode, a fastening piece is arranged between the fixing portion 350 and the fixing frame 130, a matching hole is formed in one side, close to the two fixing portions 350, of the two fixing portions, two ends of the mounting shaft 340 are inserted into the matching hole, a hexagonal hole 353 is formed in one side, deviating from the two fixing portions 350, screws are arranged between the fixing portions 350 and the mounting shaft 340, first limiting faces 341 are arranged on two opposite sides of the mounting shaft 340 along the axial direction, third limiting faces 352 are correspondingly arranged on the hole walls of the matching holes of the fixing portions 350, and the third limiting faces 352 are matched with the first limiting faces 341 to prevent the fixing portions 350 from rotating relative to the mounting shaft 340. First connecting portion 310, the second connecting portion 320, elasticity resets piece 330, installation axle 340 and can take out from the both ends of installation axle 340 are all established to friction disc 360 and adjusting nut 370 cover, two second connecting portions 320 are located the one side that two elasticity reset pieces 330 are close to mutually, two first connecting portions 310 are located the one side that two elasticity reset pieces 330 deviate from mutually, three friction disc 360 is located between two second connecting portions 320, the lateral wall that is located middle friction disc 360 and two first connecting portions 310 all is equipped with the fixture block, the fixture block joint is in the draw-in groove 211 of accomodating hole 210. The second connecting portion 320 is provided with a plurality of connecting structures 321 along the circumferential direction, the connecting structures 321 are arranged to be jacks, one end of the elastic reset piece 330 is connected with the first connecting portion 310, and the other end of the elastic reset piece 330 can be plugged with different jacks. The inner sidewall of the second connecting portion 320 is correspondingly provided with a second limiting surface 322, and the second limiting surface 322 is matched with the first limiting surface 341 to prevent the second connecting portion 320 from rotating relative to the mounting shaft 340. The portion of the outer side wall of the mounting shaft 340 outside the first limit surface 341 is provided with a connecting thread, the mounting shaft 340 is connected with two adjusting nuts 370 through the connecting thread, and the two adjusting nuts 370 abut against one side of the two second connecting portions 320 which deviates from each other. One side of the first connecting portion 310 departing from the elastic resetting piece 330 is uniformly provided with two first convex blocks 311 along the circumferential direction, one side of the fixing portion 350 close to the first connecting portion 310 is correspondingly provided with two second convex blocks 351, when the seat cushion 200 is turned upwards to be close to a vertical state, the first convex blocks 311 are abutted to the second convex blocks 351, the first convex blocks 311 are used for abutting against the side surfaces of the second convex blocks 351 to define stop surfaces 312, the side surfaces of the first convex blocks 311 departing from the stop surfaces 312 are set to be inclined surfaces 313, and when the fixing portion 350 is rotated, the second convex blocks 351 can pass through the first convex blocks 311 from one side of the first convex blocks 311 departing from the stop surfaces 312.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. Upset chair, its characterized in that includes:

a chair body;

the seat cushion is arranged on the chair body in a turnover mode and is provided with a rotating axis;

the turnover assembly comprises a first connecting portion, a second connecting portion and an elastic resetting piece, wherein the first connecting portion and the second connecting portion are connected through one of the first connecting portion and the second connecting portion, the other one of the first connecting portion and the second connecting portion is connected with the chair body, the cushion is connected through the other one of the first connecting portion and the second connecting portion, the second connecting portion is provided with a plurality of connecting structures which are circumferentially arranged around the rotating axis, the elastic resetting piece is sleeved on the rotating axis, one end of the elastic resetting piece is connected with the first connecting portion, and the other end of the elastic resetting piece is connected with one of the connecting structures.

2. The tumble chair according to claim 1, wherein the tumble component further comprises an installation shaft disposed on the chair body, an axis of the installation shaft coincides with the rotation axis, the installation shaft is sleeved with the elastic reset member, the first connecting portion is connected with the cushion and rotatably sleeved on the installation shaft, and the second connecting portion is connected with the installation shaft and relatively fixed with the installation shaft along a circumferential direction.

3. The reversible chair according to claim 2, wherein the cushion can be reversed upwards to a first set position, the first connecting portion is provided with a first projection, the reversing assembly further comprises a fixing portion arranged on the chair body, the fixing portion is provided with a second projection, and when the cushion is reversed to the first set position, the first projection abuts against the second projection to limit the cushion from continuing to reverse.

4. The reversible chair according to claim 3, wherein the fixing portion is rotatably mounted on the chair body, a fastening member for limiting the rotation of the fixing portion is disposed between the fixing portion and the chair body, the mounting shaft is connected with the fixing portion, the first protrusion is disposed on a side of the first connecting portion away from the elastic restoring member, the first protrusion is used for abutting against a stop surface defined by a side surface of the second protrusion, and a side surface of the first protrusion away from the stop surface is provided with an inclined surface, so that when the fixing portion is rotated, the second protrusion can pass through the first protrusion from a side of the first protrusion away from the stop surface.

5. The reversible chair according to any one of claims 1 to 4, wherein the connecting structure comprises a jack arranged on the second connecting part, and one end of the elastic resetting piece far away from the first connecting part is plugged with the jack.

6. The turnover chair according to any one of claims 2 to 4, wherein the number of the first connecting portion, the number of the second connecting portion and the number of the elastic restoring members are two, the two second connecting portions are respectively located at opposite sides of the two elastic restoring members, at least one friction plate is sleeved between the two second connecting portions of the mounting shaft, and at least one friction plate is connected to the cushion.

7. The overturning chair according to claim 6, wherein at least one side of the mounting shaft is provided with a first limiting surface along an axial direction of the mounting shaft, the second connecting portion is sleeved on the mounting shaft, an inner side wall of the second connecting portion is correspondingly provided with a second limiting surface, the second limiting surface is matched with the first limiting surface to prevent the second connecting portion from rotating relative to the mounting shaft, the cushion is provided with a receiving hole sleeved on the mounting shaft, the first connecting portion, the second connecting portion, the elastic resetting member and the friction plate are all located in the receiving hole, a hole wall of the receiving hole is provided with a clamping groove extending along the axial direction of the receiving hole and having at least one end penetrating through, the first connecting portion and at least one of the friction plate are provided with a clamping block, and the clamping block is clamped in the clamping groove.

8. The tumble chair according to claim 7, characterized in that two adjusting nuts are connected to said mounting shaft in a threaded manner, said two adjusting nuts abutting respectively a side of said two second connecting parts facing away from each other.

9. The tumble chair according to any of claims 1 to 4, characterized in that it further comprises:

the backrest is arranged on the chair body in a sliding mode and can slide upwards relative to the chair body, so that the backrest can be detached from the chair body.

10. The tumble chair according to any one of claims 1 to 4, characterized in that said seat cushion can be flipped down to a second set position, said seat cushion being provided with an abutting portion that abuts against said chair body when said seat cushion is flipped to said second set position; or,

the chair body is provided with a supporting part, and when the seat cushion is turned to the second set position, the supporting part supports the seat cushion so as to limit the seat cushion to continue rotating.

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