Waist support for seat and seat

Abstract

The utility model discloses a waist support for a seat and the seat, the waist support comprises: a waist support body, which is provided with a recessed part; the elastic cover body is arranged on the waist support body and is matched with the concave part to form a mounting cavity; the massage mechanism is arranged in the mounting cavity and has an extending position and a retracting position relative to the waist support body; the driving mechanism is arranged in the mounting cavity and is connected with the massage mechanism; the controller is connected with the driving mechanism and used for controlling the driving mechanism to work so as to drive the massage mechanism to be switched between the stretching-out position and the retracting position; the massage mechanism pushes the elastic cover body when located at the extending position, and a gap is formed between the massage mechanism and the elastic cover body when the massage mechanism is located at the retracting position. The driving mechanism can be controlled to be switched between the stretching-out position and the retracting position, pressing of the massage head on the waist of a user is eliminated when the user does not need massage, and the comfort level of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a lumbar support for seats and the seat. Background Art

[0002] As people's living standards continue to improve, users have higher and higher requirements for the comfort of seats. The seats in the related art will add massage functions to the pillow, back, waist and other positions. For example, the seats in the related art will directly set a massage mechanism on the back of the chair, or set a massage mechanism on the waist support set on the back of the chair, so as to massage the user's waist. However, the massage mechanism set on the seat in the current related art generally adopts the solution of a common massage recliner, that is, a massage head is directly set on the seat. When the user does not need massage, the massage head will press against the user's waist or back, making the user feel uncomfortable, which reduces the user's comfort. Utility Model Content

[0003] The utility model aims to provide a lumbar support and a seat for a seat, which can eliminate the pressure of a massage head on the user's waist when the user does not need massage, thereby improving the user's comfort.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A lumbar support for a seat, the lumbar support comprising:

[0006] A lumbar support body, which is formed with a recessed portion;

[0007] An elastic cover body, which is arranged on the waist support body and cooperates with the recessed portion to form a mounting cavity;

[0008] A massage mechanism, which is disposed in the mounting cavity and has an extended position and a retracted position relative to the lumbar support body;

[0009] a driving mechanism, which is disposed in the mounting cavity and connected to the massage mechanism; and

[0010] A controller connected to the driving mechanism and used to control the driving mechanism to drive the massage mechanism to switch between the extended position and the retracted position;

[0011] Wherein, when the massage mechanism is in the extended position, it pushes on the elastic cover body, and when the massage mechanism is in the retracted position, there is a gap between the massage mechanism and the elastic cover body.

[0012] Preferably, the lumbar support further comprises a detection element disposed in the mounting cavity, and the controller is connected to the detection element and obtains position information of the massage mechanism through the detection element.

[0013] Preferably, the detection element includes an induction magnet and a Hall sensor matched with the induction magnet, the induction magnet is configured to move synchronously with the massage mechanism, and the position of the Hall sensor is configured to enable the induction magnet to sense the Hall sensor when the massage mechanism is in the extended position.

[0014] Preferably, the driving mechanism includes a driving motor and a transmission mechanism, the output shaft of the driving motor is provided with a threaded screw segment, the transmission mechanism includes a connecting block fixedly arranged on the lumbar support body, the connecting block is provided with an internal thread matched with the threaded screw segment, the threaded screw segment is inserted into the connecting block and the two are threadably matched, the body of the driving motor and the massage mechanism are relatively fixed and the two move synchronously.

[0015] Preferably, the lumbar support further comprises a fixing seat fixedly arranged on the inner wall of the mounting cavity and a mounting seat slidably arranged on the fixing seat, and the driving motor and the massage mechanism are both fixedly arranged on the mounting seat.

[0016] Preferably, the fixing seat is formed with a slide groove, the mounting seat is formed with a sliding block matched with the slide groove, the sliding block is formed with a positioning groove, and the body of the driving motor is positioned in the positioning groove.

[0017] Preferably, the mounting seat includes a main seat fixedly mounted on the fixing seat and a cover body fixedly connected to the main seat, a slot is formed between the cover body and the main seat, the massage mechanism includes a shell, the shell has a snap-in section adapted to the slot, and the massage mechanism is fixed to the mounting seat by snapping the snap-in section into the slot.

[0018] Preferably, the massage mechanism further comprises a massage head disposed on the housing, and the controller is electrically connected to the massage head and is capable of controlling the operation of the massage head.

[0019] In addition, to achieve the above purpose, the utility model also adopts the following technical solutions:

[0020] A seat, comprising a chair back, further comprising a lumbar support as described in any one of the above technical solutions, wherein the lumbar support is arranged on the chair back.

[0021] Preferably, the seat further includes a seat frame and a pressure sensor arranged on the seat frame, the controller is connected to the pressure sensor and obtains pressure data through the pressure sensor, and the controller is configured to control the drive mechanism to drive the massage mechanism to switch between the extended position and the retracted position according to the pressure data; and / or, the seat further includes a hand controller electrically connected to the controller, and the hand controller is configured to enable the user to control the drive mechanism to drive the massage mechanism to switch between the extended position and the retracted position by operating the hand controller.

[0022] Compared with the prior art, the utility model has the beneficial effect that: by forming an installation cavity on the lumbar support body, assembling the massage mechanism in the installation cavity, and providing a driving mechanism, the driving mechanism is used to drive the lumbar support body to switch between the retracted position and the extended position. In this way, when the user does not need massage, the massage mechanism can be retracted into the installation cavity without hurting the user's waist and back, thereby improving the user's comfort. When the user needs massage, the massage mechanism can be switched to the extended position to perform massage normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a lumbar support for a seat provided in an embodiment of the present application;

[0024] Figure 2 An exploded view of the waist support provided in this embodiment;

[0025] Figure 3 An exploded view of the mounting base, the driving mechanism and the massage mechanism in this embodiment;

[0026] Figure 4 is a schematic diagram of the driving mechanism in this embodiment;

[0027] Figure 5 It is a cross-sectional view of the lumbar support excluding the lumbar support body in this embodiment;

[0028] Figure 6 The figure is a schematic diagram of installing the lumbar support provided by the present embodiment on the backrest of a seat.

[0029] Among them, 1. lumbar support body; 10. recessed portion; 2. massage mechanism; 20. shell; 200. snap-on section; 21. massage head; 3. drive mechanism; 30. drive motor; 300. threaded screw section; 31. connecting block; 4. mounting seat; 40. main seat; 400. slider; 401. positioning groove; 41. cover body; 410. snap-on slot; 5. fixing seat; 50. slide groove; 51. circuit board; 6. chair back. DETAILED DESCRIPTION

[0030] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] This embodiment provides a lumbar support for a seat, such as Figure 1 As shown in the figure, the lumbar support includes a lumbar support body 1, an elastic cover body (not shown in the figure), a massage mechanism 2, a drive mechanism 3 and a controller (not shown in the figure). Among them, the lumbar support body 1 is formed with a recessed portion 10, and the elastic cover body is arranged on the lumbar support body 1 and cooperates with the recessed portion 10 to form an installation cavity. Specifically, the elastic cover body can be a leather material with elasticity, or a cotton material with elasticity, or a mesh with elasticity, etc.; the elastic cover body can also be a thicker elastic pad, such as a rubber pad or a sponge pad, and the above-mentioned leather material, cotton material, etc. can also be sewn on the outside of the rubber pad or the sponge pad. The elastic cover body can be directly sewn at the opening of the recessed portion 10, so that the elastic cover body directly covers the recessed portion 10 and cooperates with it to form an installation cavity. Alternatively, the elastic cover body can also wrap the entire lumbar support body 1, and the part of the elastic cover body that covers the recessed portion 10 cooperates with the recessed portion 10 to form an installation cavity. It is easy to understand that the above-mentioned shielding is not necessarily completely closed. As mentioned above, the elastic cover body can be a mesh.

[0034] The massage mechanism 2 and the drive mechanism 3 are both arranged in the installation cavity, wherein the massage mechanism 2 has an extended position and a retracted position relative to the lumbar support body 1, the drive mechanism 3 is connected to the massage mechanism 2, the controller is connected to the drive mechanism 3, and the drive mechanism 3 can be controlled to work (start-stop control) through the controller, and then the massage mechanism 2 is driven by the drive mechanism 3 to switch between the extended position and the retracted position. When the massage mechanism 2 is in the extended position, it pushes on the elastic cover body, and when the massage mechanism 2 is in the retracted position, there is a gap between the elastic cover body. It is easy to understand that when the massage mechanism 2 is in the retracted position, there is a gap between the elastic cover body, that is, the massage mechanism 2 does not apply pressure to the elastic cover body when it is in the retracted position. When the massage mechanism 2 is in the extended position, abutment occurs between the elastic cover body, that is, when the massage mechanism 2 is in the extended position, pressure is applied to the elastic cover body to cause the elastic cover body to deform, and the user observes from the outside and sees that part of the elastic cover body is pushed up and protruded by the massage mechanism 2.

[0035] The lumbar support provided in this embodiment forms an installation cavity on the lumbar support body 1, uses the installation cavity to assemble the massage mechanism 2 and the drive mechanism 3, and uses the drive mechanism 3 to drive the lumbar support body 1 to switch between the retracted position and the extended position. In this way, when the user does not need massage, the massage mechanism 2 can be retracted into the installation cavity without hurting the user's waist and back, thereby improving the user's comfort. When the user needs massage, the massage mechanism 2 can be switched to the extended position to perform massage normally.

[0036] Furthermore, the lumbar support in this embodiment also includes a detection element disposed in the mounting cavity, and the controller is connected to the detection element and obtains the position information of the massage mechanism 2 through the detection element. By obtaining the position information of the massage mechanism 2 through the detection element, it is possible to determine whether the massage mechanism 2 is in the extended position, thereby facilitating the controller to start and stop the driving mechanism 3. Specifically in this embodiment, the detection element includes an induction magnet (not shown in the figure) and a Hall sensor (not shown in the figure) adapted to the induction magnet. The induction magnet is configured to move synchronously with the massage mechanism 2, and the position of the Hall sensor is configured to enable the induction magnet to sense the Hall sensor when the massage mechanism 2 is in the extended position. The specific setting method of the induction magnet and the Hall sensor will be explained later.

[0037] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in , the driving mechanism 3 in this embodiment includes a driving motor 30 and a transmission mechanism, the output shaft of the driving motor 30 is provided with a threaded screw segment 300, the transmission mechanism includes a connecting block 31 fixedly arranged on the lumbar support body 1, the connecting block 31 is provided with an internal thread matched with the threaded screw segment 300, the threaded screw segment 300 is inserted into the connecting block 31 and the two are threadedly matched, the body of the driving motor 30 and the massage mechanism 2 are relatively fixedly arranged and the two move synchronously. That is, when the driving motor 30 is working, the output shaft of the driving motor 30 rotates, and the threaded screw segment 300 rotates accordingly. Since the threaded screw segment 300 is threadedly matched with the connecting block 31, and the connecting block 31 is fixedly arranged on the lumbar support body 1, the threaded screw segment 300 will move axially while rotating. In this way, the threaded screw segment 300 will synchronously drive the body of the driving motor 30 and the massage mechanism 2 fixedly arranged relatively to the body of the driving motor 30 to move together.

[0038] It is easy to understand that in other optional embodiments, the linear drive can be directly selected as the driving mechanism 3, and the massage mechanism 2 can be directly driven to move by the output shaft of the linear drive, so that the massage mechanism 2 can be switched between the extended position and the retracted position. Alternatively, in an optional embodiment, the driving mechanism 3 still includes the driving motor 30 and the transmission mechanism in this embodiment, but the driving motor 30 is fixedly installed on the lumbar support body 1, and the connecting block 31 is fixedly installed with the massage mechanism 2 (the connecting block 31 is movably arranged relative to the lumbar support body 1), so that when the driving motor 30 is working, the threaded screw segment 300 can cooperate with the connecting block 31 to drive the connecting block 31 to drive the massage mechanism 2 to move, and the massage mechanism 2 can also be switched between the extended position and the retracted position. However, the design of the driving mechanism 3 provided in this embodiment has the following advantages: for the seat product, due to the design of the volume size, when the driving mechanism 3 is arranged in the lumbar support body 1, its design size needs to be reduced as much as possible. When a linear drive is directly selected as the driving mechanism 3 or the driving motor 30 in the driving mechanism 3 is fixedly designed, a large protruding portion needs to be formed at the rear of the lumbar support body 1 so that the above-mentioned linear drive or the driving motor 30 that needs to be fixedly installed can be installed. When the design of the driving mechanism 3 in this embodiment is adopted, since the connecting block 31 only needs to form a threaded hole that is compatible with the threaded screw segment 300, its size can be smaller. The driving motor 30 that is movably arranged relative to the lumbar support body 1 can make full use of the space in the recessed portion 10 of the lumbar support body 1. In this way, the design size can be reduced as much as possible for the rear position of the lumbar support body 1, which is convenient for its application to the seat.

[0039] like Figure 2 and Figure 3As shown in , the waist support in this embodiment also includes a fixing seat 5 fixedly arranged on the inner wall of the mounting cavity and a mounting seat 4 slidably arranged on the fixing seat 5, and the driving motor 30 and the massage mechanism 2 are fixedly arranged on the mounting seat 4. In this way, when the driving motor 30 is working, the body of the driving motor 30, the massage mechanism 2 and the mounting seat 4 can all slide relative to the fixing seat 5. Further, in this embodiment, a slide groove 50 is formed on the fixing seat 5, and a slider 400 adapted to the slide groove 50 is formed on the mounting seat 4. The slider 400 is formed with a positioning groove 401, and the body of the driving motor 30 is positioned in the positioning groove 401. Through the above design, the sliding stability of the body of the driving motor 30, the massage mechanism 2 and the mounting seat 4 can be further increased.

[0040] Specifically, the mounting seat 4 in this embodiment includes a main seat 40 fixedly mounted on the fixing seat 5 and a cover 41 fixedly connected to the main seat 40. The cover 41 is fastened to the main seat 40 by screws. Of course, the cover 41 can also be snapped to the main seat 40 by a snap-fit ​​structure. A snap-fit ​​groove 410 is formed between the cover 41 and the main seat 40. The massage mechanism 2 includes a housing 20, and the housing 20 has a snap-fit ​​section 200 adapted to the snap-fit ​​groove 410. The massage mechanism 2 is fixed to the mounting seat 4 by snapping the snap-fit ​​section 200 into the snap-fit ​​groove 410. The aforementioned slider 400 is formed on the main seat 40, and the driving motor 30 is placed in a positioning groove 401 formed on the slider 400. At the same time, screws or other connecting members are used to lock and fix the housing of the driving motor 30 to the slider 400.

[0041] The slide groove 50 formed on the fixing seat 5 has a bottom wall and side walls on both sides of the bottom wall, and the aforementioned detection element is arranged between one side wall of the slide groove 50 and the slider 400. Specifically, the induction magnet in the detection element is arranged on the slider 400, and the Hall sensor in the detection element is arranged on a circuit board 51, and the circuit board 51 is fixed and locked on one side wall of the slide groove 50 by screws. The Hall sensor is electrically connected to the controller through the circuit board 51.

[0042] The massage mechanism 2 in this embodiment also includes a massage head 21 arranged on the housing 20, and the controller is electrically connected to the massage head 21 and can control the operation of the massage head 21. Specifically, there are two massage heads 21, and the two massage heads 21 are symmetrically distributed on both sides of the clamping section 200. It should be noted that the controller in this embodiment can control the operation of the drive mechanism 3 and the massage mechanism 2. In some optional embodiments, different controllers can also be set to control the operation of the drive mechanism 3 and the massage mechanism 2 respectively, and it is only necessary to electrically connect the different controllers to transmit control signals. Alternatively, the controller can also be used as a controller for the entire seat, that is, the seat may be designed with more functions, such as seat cushion heating, cooling and other functions. The seat is provided with a controller as a whole, and the controller can be used to control the aforementioned drive mechanism 3 and massage mechanism 2, while also controlling the operation of other functional modules of the seat such as heating and cooling.

[0043] like Figure 6 As shown in , the lumbar support can be applied to a seat, wherein the seat includes a backrest 6, and the lumbar support is arranged on the backrest 6. Further, the seat also includes a seat frame and a pressure sensor arranged on the seat frame, the controller is connected to the pressure sensor and obtains pressure data through the pressure sensor, and the controller is configured to control the drive mechanism 3 to drive the massage mechanism 2 to switch between the extended position and the retracted position according to the pressure data. Specifically, the pressure sensor can be used to monitor whether a user is seated, and the controller can be configured to control the drive mechanism 3 to work after detecting that the user is seated, and then drive the massage mechanism 2 to switch to the extended position so as to massage the user. The controller can also be configured to control the drive mechanism 3 to work after a period of time (preset time) after detecting that the user is seated, and then drive the massage mechanism 2 to switch to the extended position so as to massage the user. The pressure sensor can be used to determine whether the user has left, and the controller can be configured to control the drive mechanism 3 to work after detecting that the user has left, and then drive the massage mechanism 2 to switch to the retracted position. Alternatively, the controller can also be configured to control the drive mechanism 3 to work after the massage time reaches the set time, and then drive the massage mechanism 2 to switch to the retracted position.

[0044] Alternatively, the above-mentioned chair further includes a hand controller electrically connected to the controller, and the hand controller is configured to allow the user to control the drive mechanism 3 to drive the massage mechanism 2 to switch between the extended position and the retracted position by operating the hand controller. By providing the hand controller, it is convenient for the user to control the drive mechanism 3 to work at any time according to their own needs, and then drive the massage mechanism 2 to switch between the extended position and the retracted position, so as to choose whether to perform massage or not.

[0045] It should be noted that the control scheme of setting the pressure sensor and the control scheme of setting the hand controller can be set by either one or both.

[0046] Finally, it should be noted that the above-mentioned implementation modes are only optional embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A lumbar support for a seat, characterized in that: The waist support comprises: A lumbar support body, which is formed with a recessed portion; An elastic cover body, which is arranged on the waist support body and cooperates with the recessed portion to form a mounting cavity; A massage mechanism, which is disposed in the mounting cavity and has an extended position and a retracted position relative to the lumbar support body; a driving mechanism, which is disposed in the mounting cavity and connected to the massage mechanism; and A controller connected to the driving mechanism and used to control the driving mechanism to drive the massage mechanism to switch between the extended position and the retracted position; Wherein, when the massage mechanism is in the extended position, it pushes on the elastic cover body, and when the massage mechanism is in the retracted position, there is a gap between the massage mechanism and the elastic cover body.

2. The lumbar support according to claim 1, characterized in that: The waist support further comprises a detection element disposed in the installation cavity, and the controller is connected to the detection element and obtains position information of the massage mechanism through the detection element.

3. The lumbar support according to claim 2, characterized in that: The detection element includes an induction magnet and a Hall sensor matched with the induction magnet. The induction magnet is configured to move synchronously with the massage mechanism, and the position of the Hall sensor is configured to enable the induction magnet to sense the Hall sensor when the massage mechanism is in the extended position.

4. The lumbar support according to claim 1, characterized in that: The driving mechanism includes a driving motor and a transmission mechanism. The output shaft of the driving motor is provided with a threaded screw segment. The transmission mechanism includes a connecting block fixedly arranged on the lumbar support body. The connecting block is provided with an internal thread matched with the threaded screw segment. The threaded screw segment is inserted into the connecting block and the two are threadably matched. The body of the driving motor and the massage mechanism are relatively fixedly arranged and the two move synchronously.

5. The lumbar support according to claim 4, characterized in that: The waist support also includes a fixing seat fixedly arranged on the inner wall of the installation cavity and a mounting seat slidably arranged on the fixing seat, and the driving motor and the massage mechanism are both fixedly arranged on the mounting seat.

6. The lumbar support according to claim 5, characterized in that: The fixing seat is formed with a slide groove, the mounting seat is formed with a sliding block matched with the slide groove, the sliding block is formed with a positioning groove, and the body of the driving motor is positioned in the positioning groove.

7. The lumbar support according to claim 5, characterized in that: The mounting seat includes a main seat fixedly mounted on the fixing seat and a cover body fixedly connected to the main seat, a slot is formed between the cover body and the main seat, the massage mechanism includes a shell, the shell has a snap-in section adapted to the slot, and the massage mechanism is fixed to the mounting seat by snapping the snap-in section into the slot.

8. The lumbar support according to claim 7, characterized in that: The massage mechanism also includes a massage head arranged on the shell, and the controller is electrically connected to the massage head and can control the operation of the massage head.

9. A seat, including a seat back, characterized in that: The seat further comprises a lumbar support as claimed in any one of claims 1 to 8, wherein the lumbar support is arranged on the chair back.

10. The seat according to claim 9, characterized in that The seat further comprises a seat frame and a pressure sensor disposed on the seat frame, the controller is connected to the pressure sensor and obtains pressure data through the pressure sensor, and the controller is configured to control the driving mechanism to drive the massage mechanism to switch between the extended position and the retracted position according to the pressure data; And / or, the seat further comprises a hand controller electrically connected to the controller, and the hand controller is configured to allow a user to control the driving mechanism to drive the massage mechanism to switch between the extended position and the retracted position by operating the hand controller.

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