Seat

Abstract

The seat comprises a base plate, a cushion assembly and a reset piece, the cushion assembly comprises a cushion support and a connecting support, the connecting support is connected between the base plate and the cushion support in a supporting mode, and the two ends of the connecting support are rotationally connected with the base plate and the cushion support respectively. The connecting bracket has a first position and a second position in the rotating direction relative to the chassis; the reset piece is arranged between the connecting support and the chassis and used for keeping the connecting support at the first position. According to the seat disclosed by the utility model, the chassis and the cushion bracket are rotationally connected through the connecting bracket, and when the connecting bracket moves from the first position to the second position, the resetting piece can provide a buffering effect for the movement of the connecting bracket, so that the comfort of a user when using the seat is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair technical field especially is related to a chair. BACKGROUND

[0002] In the related art, the chair back is installed on the base plate, and the user leans back to drive the chair back to tilt backward by relying on the weight of the user. Since there is lack of effective buffering and power assisting mechanism, the user only relies on the mechanical structure of the chair to support rigidly, which not only makes the leaning back process rough and not smooth, but also causes the body to bear a large impact due to the sudden change of the angle, and thus not only fails to effectively relieve fatigue, but also brings additional discomfort. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the prior art. To this end, one purpose of the utility model is to provide a chair, which comprises a reset member. The reset member can provide a buffering effect for the movement of the connecting bracket, thereby improving the comfort of the user when using the chair.

[0004] According to the chair of the utility model embodiment, the base plate and the cushion bracket are rotatably connected through the connecting bracket. When the connecting bracket moves from the first position to the second position, the reset member can provide a buffering effect for the movement of the connecting bracket, thereby improving the comfort of the user when using the chair.

[0005] According to the chair of the utility model embodiment, the base plate and the cushion bracket are rotatably connected through the connecting bracket. When the connecting bracket moves from the first position to the second position, the reset member can provide a buffering effect for the movement of the connecting bracket, thereby improving the comfort of the user when using the chair.

[0006] According to some embodiments of the utility model, the connecting bracket comprises a first bracket and a second bracket. Two first brackets are arranged on the left and right sides of the front end of the base plate, and two second brackets are arranged on the left and right sides of the rear end of the base plate. The two ends of the first bracket and the two ends of the second bracket are rotatably connected between the base plate and the cushion bracket, so that the cushion bracket is movably arranged above the base plate through the two first brackets and the two second brackets. The reset member is arranged between the first bracket and the base plate.

[0007] According to some embodiments of the utility model, one side of the bottom disc towards the first support is provided with a first mounting groove, one side of the first support towards the bottom disc is provided with a second mounting groove, and two ends of the reset member are respectively installed in the first mounting groove and the second mounting groove.

[0008] According to some embodiments of the utility model, the reset member comprises a torsional spring, the torsional spring has a first torsional arm and a second torsional arm, the first torsional arm is installed in the first mounting groove, and the second torsional arm is installed in the second mounting groove.

[0009] According to some embodiments of the utility model, the bottom disc is provided with a mounting protrusion towards the first support, one side of the mounting protrusion towards the first support is provided with the first mounting groove, one end of the first support towards the mounting protrusion has a mounting cavity, the mounting protrusion and the reset member are located in the mounting cavity, and a bottom wall of the mounting cavity has the second mounting groove.

[0010] According to some embodiments of the utility model, the cushion assembly further comprises a fastener, the first support comprises a first rod body and a second rod body connected at an intersection angle, the first rod body has the mounting cavity, the second rod body is hingedly connected with the cushion support, one side of the first rod body away from the mounting cavity has a connecting channel penetrating through the bottom wall of the mounting cavity, the mounting protrusion has a mounting hole oppositely arranged with the connecting channel, the fastener comprises a fastening rod and a first shaft sleeve, the first shaft sleeve is located in the connecting channel, and the fastening rod is arranged in the first shaft sleeve to be connected with the mounting hole, so that the first support is hingedly connected with the bottom disc.

[0011] According to some embodiments of the utility model, the seat further comprises a backrest assembly, the backrest assembly comprises a backrest and a backrest bottom plate, the backrest bottom plate is connected to the lower end of the backrest, the backrest bottom plate is rotationally connected with the bottom disc, and the lower end of the second support is fixedly connected with the backrest bottom plate to be rotationally connected with the bottom disc through the backrest bottom plate.

[0012] According to some embodiments of the utility model, the backrest bottom plate comprises a bottom plate body and a first extension plate and a second extension plate connected to the front end of the bottom plate body, the first extension plate and the second extension plate are respectively located on the left side and the right side of the bottom disc and are respectively hingedly connected with the bottom disc, and the lower end of the two second supports is fixedly connected with the first extension plate and the second extension plate.

[0013] According to some embodiments of the utility model, the seat further comprises an armrest assembly, the armrest assembly comprises an armrest and an armrest rod, the armrest rod is connected to the lower end of the armrest, and the armrest rod is fixedly connected with the backrest bottom plate.

[0014] According to some embodiments of the present application, the handrail rod is fixedly connected between the second support and the backrest bottom plate.

[0015] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a schematic view of the cooperation of the chassis and the cushion assembly according to some embodiments of the present application;

[0018] Figure 2 is Figure 1 a schematic view of the cooperation of the chassis and the cushion assembly from another direction;

[0019] Figure 3 is Figure 1 a schematic view of the cooperation of the chassis and the cushion assembly from still another direction;

[0020] Figure 4 is Figure 1 a schematic view of the cooperation of the chassis and the cushion assembly, wherein the first support is not shown.

[0021] Reference Signs:

[0022] 10, chassis; 1, mounting protrusion;

[0023] 20, cushion assembly; 21, cushion support; 22, connecting support; 221, first support; 2211, first rod body; 2212, second rod body; 2213, connecting channel; 222, second support; 23, second shaft sleeve;

[0024] 3, torsion spring; 31, second torsion arm;

[0025] 4, backrest bottom plate; 41, bottom plate body; 411, second extension plate;

[0026] 5, handrail rod. DETAILED DESCRIPTION

[0027] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0029] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0030] The following refers to Figures 1-4 The seat according to the embodiments of the utility model is described.

[0031] The seat according to the embodiments of the utility model, the seat comprises a chassis 10 and a cushion assembly 20, the cushion assembly 20 comprises a cushion support 21 and a connecting support 22, the connecting support 22 is supported and connected between the chassis 10 and the cushion support 21, and the two ends of the connecting support 22 are rotatably connected with the chassis 10 and the cushion support 21 respectively, the connecting support 22 has a first position and a second position in the rotating direction relative to the chassis 10, when the connecting support 22 is located at the first position, the cushion support 21 is located at the first position, when the connecting support 22 is located at the second position, the cushion support 21 is located at the second position, through the movement of the cushion support 21 between the first position and the second position, the movement of the connecting support 22 between the first position and the second position can be connected.

[0032] The seat further comprises a reset member, the reset member is arranged between the connecting support 22 and the chassis 10, and the reset member is used for keeping the connecting support 22 at the first position.

[0033] When the user sits on the seat cushion, the user can drive the seat cushion support 21 to move from the first position to the second position, and the restoring member can buffer the force when the seat cushion support 21 moves towards the second position, slow down the speed of the seat cushion support 21 when moving from the first position to the second position, provide a buffering effect for the movement of the seat cushion support 21, and thus improve the comfort of the user when riding the seat.

[0034] For example, the restoring member can be an elastic member.

[0035] In one specific example, four connecting supports 22 can be provided, two on the left and right sides of the seat cushion support 21 respectively, and the two connecting supports 22 are arranged in the front-rear direction of the seat cushion support 21. Four connecting supports 22 are used to rotate and connect the seat cushion support 21 and the chassis 10, and a four-bar linkage structure can be formed between the chassis 10 and the seat cushion support 21 for allowing the seat cushion support 21 to be movable relative to the chassis 10. The restoring member can be located between one of the connecting supports 22 and the chassis 10, or between multiple connecting supports 22 and the chassis 10.

[0036] According to the seat of the embodiments of the present application, the chassis 10 and the seat cushion support 21 are rotatably connected through the connecting supports 22, and when the connecting supports 22 move from the first position to the second position, the restoring member can provide a buffering effect for the movement of the connecting supports 22, thereby improving the comfort of the user when using the seat.

[0037] According to some embodiments of the present application, with reference to Figures 1-3 The connecting support 22 includes a first support 221 and a second support 222, and the first support 221 is provided with two first supports 221 located on the left and right sides of the front end of the chassis 10, i.e. two first supports 221 located at the front end of the seat. The second support 222 is provided with two second supports 222 located on the left and right sides of the rear end of the chassis 10, i.e. two second supports 222 located at the rear end of the seat.

[0038] The two ends of the first support 221 and the two ends of the second support 222 are rotatably connected between the chassis 10 and the seat cushion support 21, the upper ends of the first support 221 and the second support 222 are hinged to the seat cushion support 21, and the lower ends of the first support 221 and the second support 222 are hinged to the chassis 10, so that the seat cushion support 21 is movably arranged above the chassis 10 through the two first supports 221 and the two second supports 222, and the restoring member is arranged between the first support 221 and the chassis 10, i.e. arranged at the front end of the chassis 10.

[0039] When the cushion support 21 moves from the first position to the second position, the force mainly acts on the front end of the cushion support 21, and the elastic member is arranged at the front end of the base plate 10, so that the elastic force of the reset member can be exerted as much as possible.

[0040] According to some embodiments of the present application, referring to Figures 1-3 , the side of the base plate 10 facing the first support 221 is provided with a first mounting groove, the side of the first support 221 facing the base plate 10 is provided with a second mounting groove, and the two ends of the reset member are respectively mounted in the first mounting groove and the second mounting groove. The first mounting groove and the second mounting groove can not only be used for mounting the reset member, but also can limit the position of the reset member to prevent the reset member from being displaced and losing the reset function.

[0041] According to some embodiments of the present application, referring to Figure 4 , the reset member includes a torsion spring 3, the torsion spring 3 has a first torsion arm and a second torsion arm 31, the first torsion arm is mounted in the first mounting groove, and the second torsion arm 31 is mounted in the second mounting groove. By arranging the torsion spring 3 between the base plate 10 and the first support 221, the mounting mode of the reset member can be simple, and the cost of the torsion spring 3 is relatively low.

[0042] When the connecting support 22 moves from the first position to the second position, the torsion spring 3 is elastically deformed to generate an elastic force, which is used to buffer the force when the connecting support 22 moves to the second position, and to slow down the speed of the connecting support 22 when moving to the second position. After the external force acting on the connecting support 22 ends, the torsion spring 3 drives the connecting support 22 to move to the second position under the action of its own elastic force, for resetting.

[0043] According to some embodiments of the present application, referring to Figures 1-2 , the base plate 10 has a mounting protrusion 1 arranged towards the first support 221, the side of the mounting protrusion 1 facing the first support 221 is provided with a first mounting groove, the end of the first support 221 facing the mounting protrusion 1 has a mounting cavity, the opening of the mounting cavity is arranged towards the base plate 10, the mounting protrusion 1 and the reset member are located in the mounting cavity, the first rod body 2211 is wrapped around the outer circumferential side of the mounting protrusion 1, which can facilitate the connection of the first support 221 and the base plate 10, and the bottom wall of the mounting cavity has a second mounting groove. The reset member is located between the mounting protrusion 1 and the bottom of the mounting cavity, and the mounting cavity of the first support 221 can play a role in installing and protecting the reset member.

[0044] In one specific example, the cushion assembly 20 further includes a second shaft sleeve 23, which is sleeved on the outer circumferential side of the mounting protrusion 1 and located in the mounting cavity. The second shaft sleeve 23 can reduce the friction force when the first support 221 rotates relative to the base plate 10, so that the first support 221 can rotate more smoothly.

[0045] According to some embodiments of the present application, refer to Figures 1-3 The cushion assembly 20 further comprises: a fastener, the first support 221 is an integral piece, the first support 221 comprises a first rod body 2211 and a second rod body 2212 connected at an intersection angle, for example, the intersection angle between the first rod body 2211 and the second rod body 2212 is a right angle.

[0046] The first rod body 2211 has a mounting cavity, the second rod body 2212 is hinged to the cushion support 21, the side of the first rod body 2211 away from the mounting cavity has a connecting channel 2213 penetrating the bottom wall of the mounting cavity, the mounting protrusion 1 has a mounting hole arranged opposite to the connecting channel 2213, the fastener comprises a fastening rod and a first shaft sleeve, the first shaft sleeve is located in the connecting channel 2213, the fastening rod is arranged in the first shaft sleeve to be connected with the mounting hole, for example, the reset member comprises a torsion spring 3, the fastening rod can be arranged in the first shaft sleeve and the torsion spring 3 to be mounted in the mounting hole, so as to hinge the first support 221 to the bottom disc 10.

[0047] The first shaft sleeve is sleeved on the outer circumferential side of the fastening rod, the first shaft sleeve can reduce the friction when the first support 221 rotates relative to the bottom disc 10, and the rotation of the first support 221 can be more smooth.

[0048] For example, the fastening rod is a bolt, the mounting hole has a thread, the bolt can be matched with the thread in the mounting hole to fix the first support 221 to the bottom disc 10, and the first shaft sleeve is sleeved on the outer circumferential side of the end of the bolt located in the connecting channel 2213, so that the first support 221 can rotate relative to the bottom disc 10.

[0049] According to some embodiments of the present application, refer to Figures 1-3 The seat further comprises: a backrest assembly, the backrest assembly comprises a backrest and a backrest bottom plate 4, the backrest bottom plate 4 extends in the front-rear direction, the backrest bottom plate 4 is connected to the lower end of the backrest, and the backrest bottom plate 4 is rotationally connected to the bottom disc 10, the lower end of the second support 222 is fixedly connected to the backrest bottom plate 4, so as to be rotationally connected to the bottom disc 10 through the backrest bottom plate 4.

[0050] When a user leans on the backrest and leans back, the backrest drives the backrest bottom plate 4 to rotate relative to the bottom disc 10, and simultaneously drives the second support 222 to rotate, the second support 222 rotates synchronously to drive the cushion support 21 and the second support 222 to rotate, and since the four-bar linkage structure is formed between the two first supports 221 and the two second supports 222, the cushion support 21 can be translated rearward relative to the bottom disc 10, and due to the buffering effect of the reset member, the rotation of the connecting support 22 can be slowed down, the rate when the user leans back can be slowed down, and the comfort when the user leans back is improved.

[0051] According to some embodiments of the present application, refer to Figures 1-2The backrest bottom plate 4 comprises a bottom plate body 41, a first extension plate and a second extension plate 411, the first extension plate and the second extension plate 411 are connected at the front end of the bottom plate body 41, the first extension plate and the second extension plate 411 are respectively located at the left and right sides of the bottom disc 10, and the first extension plate and the second extension plate 411 are respectively hinged with the bottom disc 10, the hinge position can be located at the front end of the first extension plate and the second extension plate 411, when the backrest bottom plate 4 rotates relative to the bottom disc 10, the first extension plate and the second extension plate 411 can rotate along the left and right side surfaces of the bottom disc 10, and the left and right deviation of the backrest bottom plate 4 during rotation can be avoided.

[0052] By hinging the first extension plate and the second extension plate 411 with the bottom disc 10, the installation of the hinge connecting piece between the backrest bottom plate 4 and the bottom disc 10 is facilitated, and the contact area of the backrest bottom plate 4 and the bottom disc 10 is also increased, so that the rotation of the backrest bottom plate 4 is more stable when the backrest bottom plate 4 rotates relative to the bottom disc 10.

[0053] The lower end portions of the two second supports 222 are fixedly connected with the first extension plate and the second extension plate 411, the first extension plate and the second extension plate 411 are respectively located at the left and right sides of the bottom disc 10, and the bottom disc 10 can strengthen the first extension plate and the second extension plate 411, the fixed connection of the lower end portions of the second supports 222 with the first extension plate and the second extension plate 411 can not only construct the two second supports 222 and the first support 221 into a four-bar linkage structure, but also can increase the stability of the connection of the second supports 222 with the backrest bottom plate 4.

[0054] According to some embodiments of the present application, referring to Figures 1-2 The seat further comprises: an armrest assembly, the armrest assembly comprises an armrest and an armrest rod 5, the armrest rod 5 is connected at the lower end of the armrest, and the armrest rod 5 is fixedly connected with the backrest bottom plate 4. When a user leans back on the backrest, the backrest bottom disc 10 rotates relative to the bottom disc 10, which can drive the armrest rod 5 to rotate synchronously relative to the bottom disc 10, so that the user's hand can still lean on the armrest when the user leans back.

[0055] According to some embodiments of the present application, referring to Figures 1-2 The armrest rod 5 is fixedly connected between the second support 222 and the backrest bottom plate 4, the second support 222 is connected with the armrest rod 5, the armrest rod 5 is connected with the bottom disc 10, the armrest rod 5 can provide a mounting position for the second support 222, the installation of the second support 222 does not occupy the space of the backrest bottom plate 4, and the second support 222, the armrest rod 5 and the backrest bottom plate 4 can rotate synchronously.

[0056] In the description of the specification, the description of the terms "some embodiments", "optionally", "further", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the description of the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A seat, characterized in that, The utility model relates to a chair, which comprises: a base plate; a seat cushion assembly, the seat cushion assembly comprising a seat cushion support and a connecting support, the connecting support being supported between the base plate and the seat cushion support, and both ends of the connecting support being rotatably connected to the base plate and the seat cushion support respectively, the connecting support having a first position and a second position in a rotating direction relative to the base plate; a reset member arranged between the connecting support and the base plate, the reset member being used to keep the connecting support in the first position.

2. The seat of claim 1, wherein The connecting support comprises first supports and second supports, the first supports being provided in two, the two first supports being respectively located on the left and right sides of the front end of the base plate, the second supports being provided in two, the two second supports being respectively located on the left and right sides of the rear end of the base plate, both ends of the first supports and both ends of the second supports being rotatably connected between the base plate and the seat cushion support, so that the seat cushion support is movably arranged above the base plate through the two first supports and the two second supports, and the reset member is arranged between the first supports and the base plate.

3. The seat of claim 2, wherein, The side of the base plate facing the first supports is provided with a first mounting groove, the side of the first support facing the base plate is provided with a second mounting groove, and both ends of the reset member are respectively mounted in the first mounting groove and the second mounting groove.

4. The seat of claim 3, wherein The reset member comprises a torsion spring, the torsion spring having a first torsion arm and a second torsion arm, the first torsion arm being mounted in the first mounting groove, and the second torsion arm being mounted in the second mounting groove.

5. The seat of claim 3, wherein, The base plate is provided with a mounting protrusion facing the first supports, the side of the mounting protrusion facing the first supports is provided with the first mounting groove, one end of the first support facing the mounting protrusion has a mounting cavity, the mounting protrusion and the reset member are located in the mounting cavity, and the bottom wall of the mounting cavity has the second mounting groove.

6. The seat of claim 5, wherein, The seat cushion assembly further comprises a fastener, the first support comprises a first rod body and a second rod body connected at an intersection angle, the first rod body has the mounting cavity, the second rod body is hingedly connected to the seat cushion support, the side of the first rod body away from the mounting cavity has a connecting channel penetrating through the bottom wall of the mounting cavity, the mounting protrusion has a mounting hole arranged opposite to the connecting channel, the fastener comprises a fastening rod and a first shaft sleeve, the first shaft sleeve is located in the connecting channel, and the fastening rod is arranged in the first shaft sleeve to be connected to the mounting hole, so as to hinge the first support to the base plate.

7. The seat of claim 2, wherein Further comprising: a backrest assembly, the backrest assembly comprising a backrest and a backrest bottom plate, the backrest bottom plate being connected to the lower end of the backrest, the backrest bottom plate being rotatably connected to the base plate, and the lower end of the second support being fixedly connected to the backrest bottom plate to be rotatably connected to the base plate through the backrest bottom plate.

8. The seat of claim 7, wherein, The back bottom plate comprises a bottom plate body and first and second extension plates connected to the front end of the bottom plate body, the first and second extension plates are respectively located on the left and right sides of the bottom plate and are respectively hinged to the bottom plate, wherein the lower ends of the two second supports are fixedly connected to the first and second extension plates.

9. The seat of claim 7, wherein Also comprising: An armrest assembly comprising an armrest and an armrest rod, the armrest rod being connected to the lower end of the armrest, the armrest rod being fixedly connected to the back bottom plate.

10. The seat of claim 9, wherein, The armrest rod is fixedly connected between the second support and the back bottom plate.

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