Lumbar support assembly and seat

Abstract

This utility model discloses a lumbar support assembly and a seat. The lumbar support assembly includes a base plate, a support plate, a drive assembly, and an elastic element. The support plate is located in front of the base plate, and the support plate is spaced apart from and connected to the base plate. The drive assembly is disposed on the base plate. Both ends of the elastic element are connected to the drive assembly and the support plate, respectively. The elastic element drives the support plate to move away from the base plate, and the drive assembly drives the end of the elastic element away from the support plate to move in a front-back direction. According to the lumbar support assembly of this utility model, the lumbar support assembly can flexibly adjust the position and support force of the support plate according to the user's posture, body shape, and needs, thereby improving the user's experience and comfort.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, and in particular to a lumbar support component and a seat. Background Technology

[0002] In related technologies, most office chairs on the market currently use rigid support structures. Once the lumbar support is adjusted to a specific position, it can only be fixed and forcibly supports the human waist. It cannot be flexibly adjusted according to different work scenarios or different user body shapes and needs, which seriously affects the user's experience and comfort. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a lumbar support assembly, which can flexibly adjust the position and support force of the support plate according to the user's posture, body shape, and needs, thereby improving the user's experience and comfort.

[0004] This utility model also proposes a seat, which includes the above-mentioned lumbar support assembly.

[0005] A lumbar support assembly according to an embodiment of the present invention includes: a base plate, a support plate, a driving assembly, and an elastic member. The support plate is located in front of the base plate, and the support plate is spaced apart from and connected to the base plate. The driving assembly is disposed on the base plate. Both ends of the elastic member are respectively connected to the driving assembly and the support plate. The elastic member is used to drive the support plate to move in a direction away from the base plate, and the driving assembly is used to drive the end of the elastic member away from the support plate to move in a front-back direction.

[0006] According to the lumbar support assembly of this utility model embodiment, by setting a driving component on the base plate, the two ends of the elastic element are respectively connected to the driving component and the support plate. The driving component is used to drive the end of the elastic element away from the support plate to move in the front-back direction. This can achieve a comfortable cushioning effect while the support plate supports the user's waist. The driving component can adjust the free length and compression degree of the elastic element, and thus can flexibly adjust the position and support force of the support plate according to the user's posture, body shape and needs, thereby improving the user's experience and comfort.

[0007] According to some embodiments of the present invention, the driving assembly includes a motor and a push rod, the motor being disposed on the base plate; the push rod extends along the front-back direction, one end of the push rod being connected to the output shaft of the motor, and the other end being connected to the end of the elastic member facing away from the support plate, the motor being used to drive the push rod to move along the front-back direction.

[0008] In some embodiments of this utility model, the push rod includes an extension and a mounting portion. The extension extends along the front-rear direction, and one end of the extension is connected to the output shaft of the motor. The mounting portion is connected to the other end of the extension and is perpendicular to the extension.

[0009] According to some embodiments of the present invention, the lumbar support assembly further includes a mounting plate, the two ends of which are connected to the elastic member and the drive assembly, respectively, in the thickness direction.

[0010] In some embodiments of this utility model, the lumbar support assembly further includes a sensing device, which is embedded in the mounting plate on the side opposite to the drive assembly, for detecting the pressure of the elastic element.

[0011] In some embodiments of this utility model, the mounting plate is circular, and the diameter of the mounting plate is larger than the outer diameter of the elastic element.

[0012] In some embodiments of this utility model, the mounting plate is made of steel; and / or, the elastic element is made of steel.

[0013] According to some embodiments of this utility model, the elastic element is a spring.

[0014] According to some embodiments of the present invention, there are multiple elastic elements, which are spaced apart along the left-right direction, wherein the left-right direction is perpendicular to the front-back direction.

[0015] The seat according to an embodiment of the present invention includes: the lumbar support assembly described above.

[0016] According to the embodiment of the present invention, the seat has a drive assembly on the base plate, so that the two ends of the elastic member are connected to the drive assembly and the support plate respectively. The drive assembly is used to drive the end of the elastic member away from the support plate to move in the front-back direction. This can achieve a comfortable cushioning effect while the support plate supports the user's waist. The drive assembly can adjust the free length and compression degree of the elastic member, and thus can flexibly adjust the position and support force of the support plate according to the user's posture, body shape and needs, thereby improving the user's experience and comfort.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a perspective view of the lumbar support assembly according to an embodiment of the present utility model;

[0020] Figure 2 This is a top view of the lumbar support assembly according to an embodiment of the present utility model;

[0021] Figure 3 This is a structural schematic diagram of the lumbar support assembly according to an embodiment of the present utility model.

[0022] Figure label:

[0023] 100. Lumbar support assembly;

[0024] 1. Substrate;

[0025] 2. Support plate;

[0026] 3. Drive assembly; 31. Motor; 32. Push rod; 321. Extension; 322. Mounting part;

[0027] 4. Elastic components;

[0028] 5. Mounting plate;

[0029] 201. Seat backrest. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The following is for reference. Figures 1-3 Description of a lumbar support assembly 100 according to an embodiment of the present utility model.

[0034] like Figures 1-3 As shown, the lumbar support assembly 100 according to an embodiment of the present utility model includes a base plate 1, a support plate 2, a drive assembly 3, and an elastic element 4.

[0035] Specifically, such as Figure 1 and Figure 2 As shown, the support plate 2 is located in front of the substrate 1. The support plate 2 is spaced apart from and connected to the substrate 1. The driving component 3 is disposed on the substrate 1. The two ends of the elastic member 4 are connected to the driving component 3 and the support plate 2 respectively. The elastic member 4 is used to drive the support plate 2 to move in the direction away from the substrate 1. The driving component 3 is used to drive the end of the elastic member 4 away from the support plate 2 to move in the front-back direction.

[0036] The elastic element 4, as the core support component between the base plate 1 and the support plate 2, provides elastic support force. When the user's waist rests against the support plate 2, the elastic element 4 can undergo a certain degree of compression deformation under pressure, providing a comfortable cushioning effect for the user's waist. At the same time, the elastic element 4 can drive the support plate 2 to move away from the base plate 1, that is, the elastic element 4 always maintains a forward force on the support plate 2, ensuring that the support plate 2 can adapt to the user and always remain in contact with the user, thereby ensuring the support force of the lumbar support assembly 100.

[0037] The drive assembly 3, serving as the power source for the lumbar support assembly 100, enables the automatic adjustment function of the lumbar support assembly 100. The drive assembly 3 is connected to the end of the elastic element 4 facing away from the support plate 2, providing support and driving force to the support plate 2 and the elastic element 4. The drive assembly 3 can drive the end of the elastic element 4 facing away from the support plate 2 to move in the front-back direction, thereby adjusting the free length and compression degree of the elastic element 4. This allows for flexible adjustment of the position and support force of the support plate 2 according to the user's posture and needs. This not only relieves pressure on the user's lower back but also reduces lumbar fatigue caused by prolonged sitting, thus improving the user's experience and comfort.

[0038] When the drive assembly 3 drives the end of the elastic element 4 away from the support plate 2 to move forward, the free length of the elastic element 4 decreases, which can drive the support plate 2 to adjust its position forward. Alternatively, when the user presses against the support plate 2 and keeps the support plate 2 in place, the compression degree of the elastic element 4 increases, and the supporting force of the elastic element 4 on the support plate 2 increases, thereby enhancing the support of the support plate 2 on the user's waist.

[0039] When the drive assembly 3 drives the end of the elastic element 4 away from the support plate 2 to move backward, the free length of the elastic element 4 increases, which can drive the support plate 2 to adjust its position backward. At this time, the compression degree of the elastic element 4 decreases, and the support force of the elastic element 4 on the support plate 2 decreases, thereby reducing the support force of the support plate 2 on the user's waist.

[0040] When the user uses the lumbar support component 100, the user can manually adjust the drive component 3 according to their own needs and comfort, thereby changing the free length of the elastic element 4, and adjusting the position and support strength of the support plate 2. Manual adjustment can be made in a timely manner according to one's own needs. The operation is simple and the response is fast.

[0041] The drive assembly 3 can also be automatically controlled by a control system, for example, by setting pressure sensors to monitor the pressure distribution on the user's lower back in real time. When the user leans against the support plate 2, the pressure sensor will feed back the pressure data to the control system. Based on this data, the control system will automatically control the drive assembly 3 to move the end of the elastic element 4 away from the support plate 2 in the front-back direction. This allows the free length of the elastic element 4 to be adjusted in real time according to the user's body shape and needs, thereby achieving automatic adjustment of the position and support force of the support plate 2 to provide the best lumbar support effect and improve the user's experience and comfort.

[0042] According to the lumbar support assembly 100 of this utility model embodiment, by setting a driving assembly 3 on the base plate 1, the two ends of the elastic member 4 are respectively connected to the driving assembly 3 and the support plate 2. The driving assembly 3 is used to drive the end of the elastic member 4 away from the support plate 2 to move in the front-back direction. This can achieve a comfortable cushioning effect while the support plate 2 supports the user's waist. The driving assembly 3 can adjust the free length and compression degree of the elastic member 4, and thus can flexibly adjust the position and support force of the support plate 2 according to the user's posture, body shape and needs, thereby improving the user's experience and comfort.

[0043] In some embodiments of this utility model, such as Figure 3 As shown, the drive assembly 3 includes a motor 31 and a push rod 32. The motor 31 is mounted on the base plate 1, and the push rod 32 extends in the front-back direction. One end of the push rod 32 is connected to the output shaft of the motor 31, and the other end is connected to the end of the elastic member 4 away from the support plate 2. The motor 31 is used to drive the push rod 32 to move in the front-back direction.

[0044] Motor 31 drives push rod 32 to move in the front-back direction, causing the end of elastic element 4 away from support plate 2 to move in the front-back direction. This allows adjustment of the free length and compression degree of elastic element 4, enabling flexible adjustment of the position and support force of support plate 2 according to the user's posture and needs. This not only relieves pressure on the user's lower back but also reduces lower back fatigue caused by prolonged sitting, thereby improving the user's experience and comfort.

[0045] In some embodiments of this utility model, such as Figure 3 As shown, the push rod 32 includes an extension 321 and a mounting portion 322. The extension 321 extends in the front-rear direction, and one end of the extension 321 is connected to the output shaft of the motor 31. The mounting portion 322 is connected to the other end of the extension 321 and is perpendicular to the extension 321. By configuring the push rod 32 with an extension 321 and a mounting portion 322, the push rod 32 forms an L-shaped structure. The elastic element 4 can be connected to the end of the mounting portion 322 that is opposite to the extension 321 in the thickness direction. This reduces the difficulty of connecting the push rod 32 and the elastic element 4, facilitates installation and space utilization, and thus helps improve assembly and production efficiency.

[0046] In some embodiments of this utility model, such as Figures 1-3 As shown, the lumbar support assembly 100 also includes a mounting plate 5, with its two ends in the thickness direction connected to the elastic element 4 and the drive assembly 3, respectively. The mounting plate 5 facilitates the connection between the elastic element 4 and the drive assembly 3, improving assembly and production efficiency. The mounting plate 5 also optimizes force transmission and provides stable support, ensuring uniform force distribution on the elastic element 4 and the drive assembly 3. This ensures efficient and stable collaboration between the elastic element 4 and the drive assembly 3, while reducing energy loss and mechanical wear.

[0047] In some embodiments of this invention, the lumbar support assembly 100 further includes a sensing device embedded in the mounting plate 5 on the side opposite to the drive assembly 3, used to detect the pressure of the elastic element 4. Specifically, the sensing device can be a piezoresistive pressure sensor, characterized by high accuracy and fast response. The sensing device works in conjunction with the control system, monitoring the pressure of the elastic element 4 in real time, thereby monitoring the pressure distribution on the user's waist. The control system relies on the sensing device to obtain real-time pressure data of the elastic element 4 and precisely controls the drive assembly 3 according to a preset algorithm, thereby achieving dynamic adjustment of the free length of the elastic element 4. Through precise pressure feedback, the control system can automatically adjust the extension and retraction of the drive assembly 3, thereby achieving precise adjustment of the elastic element 4 and the support plate 2.

[0048] By setting up a sensing device, the pressure sensor will feed back the pressure data to the control system. Based on this data, the control system will automatically control the drive component 3 to drive the end of the elastic element 4 away from the support plate 2 to move in the front-back direction. This allows the free length of the elastic element 4 to be adjusted in real time according to the user's posture and body shape changes, thereby realizing the automatic adjustment of the position and support force of the support plate 2 to provide the best lumbar support effect. This solves the problem that the lumbar support of traditional office chairs is fixed and cannot adapt to different sitting postures.

[0049] Through precise connection and coordinated operation between the drive component 3, elastic element 4, and sensing device, the sensing device and drive component 3 can adjust the support strength and position of the support plate 2 in real time, regardless of whether the user is sitting upright or leaning back, ensuring that the lumbar region always receives optimal support, thereby improving the user's experience and comfort. Furthermore, the lumbar support component 100 has a simple and easy-to-implement structure, which not only controls the manufacturing cost of the lumbar support component 100 but also avoids increasing the failure rate and maintenance difficulty of the lumbar support component 100.

[0050] In some embodiments of this utility model, such as Figure 1 As shown, the mounting plate 5 is circular, and its diameter is larger than the outer diameter of the elastic element 4. The circular mounting plate 5 can adapt to the shape of the elastic element 4, ensuring that the elastic element 4 maintains a stable connection with the mounting plate 5 in its circumferential direction, thereby ensuring the uniformity of force between the mounting plate 5 and the elastic element 4.

[0051] Specifically, the elastic element 4 can be a spring with an outer diameter of 100mm, and the mounting plate 5 can be set to a diameter of 150mm and a thickness of 15mm. This ensures both the structural strength of the mounting plate 5 and the stable and uniform force transmission. Furthermore, the sensing device can also be circular, facilitating its embedding within the mounting plate 5. The diameter of the sensing device can be set to 100mm, allowing it to match the dimensions of the elastic element 4, thus ensuring accurate pressure measurement of the elastic element 4 by the sensing device.

[0052] In some embodiments of this utility model, the mounting plate 5 is made of steel. Steel has high strength, which can ensure that the mounting plate 5 can withstand and evenly transmit the force between the elastic member 4 and the drive assembly 3.

[0053] In some embodiments of this utility model, the elastic element 4 is made of steel, which can ensure the durability and elasticity of the elastic element 4, so as to provide a uniform and stable supporting force to the support plate 2.

[0054] In some embodiments of this utility model, such as Figures 1-3 As shown, the elastic element 4 is a spring, which can provide elastic support, allowing the user's waist to obtain a comfortable cushioning effect, while the structure is simple and low in cost.

[0055] The elastic element 4 can be a helical spring with equal pitch, specifically a spring with an outer diameter of 100mm, a wire diameter of 5mm, a free length of 120mm, 8 turns, and a pitch of 15mm, to ensure that the elastic element 4 provides uniform support force.

[0056] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, there are multiple elastic elements 4, which are spaced apart along the left-right direction, wherein the left-right direction is perpendicular to the front-back direction. Multiple elastic elements 4 can support the support plate 2 at multiple points, thereby improving the stability and reliability of the support plate 2 and preventing excessive concentration of force on the support plate 2 and the elastic elements 4, thus helping to extend the service life of the lumbar support assembly 100. Specifically, the number of elastic elements 4 can be 2, 3, 4, etc., and this application does not specify a particular number of elastic elements 4.

[0057] The following describes a seat according to an embodiment of the present invention.

[0058] The seat according to an embodiment of the present utility model includes: the lumbar support assembly 100 described above.

[0059] like Figure 1 and Figure 2 As shown, the lumbar support assembly 100 can be connected to the seat back 201 of the seat, or the lumbar support assembly 100 can be placed on the seat as a separate component for use.

[0060] According to the embodiment of the present invention, the seat has a drive assembly 3 on the base plate 1, so that the two ends of the elastic member 4 are connected to the drive assembly 3 and the support plate 2 respectively. The drive assembly 3 is used to drive the end of the elastic member 4 away from the support plate 2 to move in the front-back direction. This can achieve a comfortable cushioning effect while the support plate 2 supports the user's waist. The drive assembly 3 can adjust the free length and compression degree of the elastic member 4, and thus can flexibly adjust the position and support force of the support plate 2 according to the user's posture, body shape and needs, thereby improving the user's experience and comfort.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lumbar support assembly, characterized in that, include: substrate; A support plate is located in front of the substrate, and the support plate is spaced apart from and connected to the substrate; A driving component, wherein the driving component is disposed on the substrate; An elastic element is provided, with its two ends connected to the driving assembly and the support plate, respectively. The elastic element is used to drive the support plate to move in a direction away from the substrate, and the driving assembly is used to drive the end of the elastic element away from the support plate to move in a front-back direction.

2. The lumbar support assembly according to claim 1, characterized in that, The driving component includes: An electric motor, which is mounted on the substrate; A push rod extends along the front-back direction. One end of the push rod is connected to the output shaft of the motor, and the other end is connected to the end of the elastic element opposite to the support plate. The motor is used to drive the push rod to move along the front-back direction.

3. The lumbar support assembly according to claim 2, characterized in that, The push rod includes: An extension portion extends along the front-rear direction, and one end of the extension portion is connected to the output shaft of the motor; The mounting part is connected to the other end of the extension part, and the mounting part is perpendicular to the extension part.

4. The lumbar support assembly according to claim 1, characterized in that, Also includes: The mounting plate has its two ends in the thickness direction connected to the elastic element and the drive assembly, respectively.

5. The lumbar support assembly according to claim 4, characterized in that, Also includes: A sensing device is embedded in the mounting plate on the side opposite to the drive assembly, for detecting the pressure of the elastic element.

6. The lumbar support assembly according to claim 4, characterized in that, The mounting plate is circular, and the diameter of the mounting plate is larger than the outer diameter of the elastic element.

7. The lumbar support assembly according to claim 4, characterized in that, The mounting plate is made of steel. And / or, the elastic element is a steel component.

8. The lumbar support assembly according to claim 1, characterized in that, The elastic element is a spring.

9. The lumbar support assembly according to claim 1, characterized in that, There are multiple elastic elements, which are spaced apart along the left-right direction, wherein the left-right direction is perpendicular to the front-back direction.

10. A type of seat, characterized in that, Includes the lumbar support assembly according to any one of claims 1-9.

Images