Waist support structure and seat
The lumbar support structure, which connects the guide components to the drive components, enables long-distance adjustment in confined spaces, solving the problem of limited lumbar support extension distance, improving the flexibility and comfort of the lumbar support, simplifying the structure, and reducing maintenance difficulty.
Patent Information
- Application Number
- CN202423203977.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing lumbar support designs have limited extension distance in confined spaces, are structurally complex and inconvenient to maintain, and have limited design flexibility.
The lumbar support structure adopts a direct connection between the guide component and the drive component. The length of the guide component is adjustable. The lumbar support component is driven to move in the front and back directions through the drive shaft to achieve long-distance adjustment. The structure is optimized through buffer components and multi-stage telescopic design.
It provides sufficient stretching and adjustment distance in a confined space, improves the flexibility and comfort of the lumbar support structure, reduces the failure rate and maintenance difficulty, and has a simple structure and high stability.
Smart Images
Figure CN223554560U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sitting tool technical field, especially a waist support structure and a sitting tool. BACKGROUND
[0002] In the related art, in the field of waist support design, especially in the case of providing waist support such as a car seat, how to realize long-distance stretching of the waist support in a relatively narrow space is a technical challenge. The solution commonly used in the market is to realize the stretching of the waist support by the way of sliding groove cooperating with compression spring, but this method has the disadvantages of limited stretching distance, complex structure, inconvenient maintenance, etc. In addition, the requirement of long guide groove also limits the flexibility of design. SUMMARY
[0003] The utility model aims at solving one of the technical problems in the prior art. To this end, the utility model provides a waist support structure, which has sufficient stretching adjustment distance in a narrow space.
[0004] The utility model further provides a sitting tool with the above-mentioned waist support structure.
[0005] According to the waist support structure of the first aspect of the utility model, the waist support structure is arranged on a sitting tool and connected with a backrest assembly of the sitting tool, and the waist support structure comprises: a waist support assembly; a guide assembly, which extends in the front-rear direction and has a length that can be changed, one end of the guide assembly is connected with the backrest assembly, and the other end of the guide assembly is connected with the waist support assembly; and a driving member, a driving shaft of the driving member is connected with the waist support assembly to drive the waist support assembly to move along the length direction of the guide assembly.
[0006] Compared with the way of realizing the stretching of the waist support by the way of sliding groove cooperating with compression spring, the waist support structure of the utility model directly connects the driving shaft with the waist support assembly, and the length of the guide assembly in the front-rear direction is adjustable, thereby ensuring that the waist support structure has sufficient stretching adjustment distance in a narrow space, providing a longer stretching adjustment distance for the user, improving the flexibility of the waist support structure, and the waist support structure is simple and ingenious in design, low in failure rate and low in maintenance difficulty.
[0007] In some embodiments, the guide assembly comprises a guide shell and a guide piece, the guide piece is sleeved in the guide shell, and the guide piece is movable in the front-rear direction relative to the guide shell, and the front end of the guide piece is connected with the waist support assembly.
[0008] In some embodiments, the lumbar support assembly comprises a lumbar support body and a lumbar support connecting member, the lumbar support connecting member is arranged between the lumbar support body and the guide member, the lumbar support connecting member is connected with the guide member, and the lumbar support body is connected with the lumbar support connecting member.
[0009] In some embodiments, the front end of the guide shell is provided with a first buffer member, at least a part of the first buffer member is covered on the front end face of the guide shell, and / or the rear end of the guide shell is provided with a second buffer member, at least a part of the second buffer member is covered on the rear end face of the guide shell.
[0010] In some embodiments, the rear end of the guide shell is connected with a backrest connecting member of the backrest assembly.
[0011] In some embodiments, the guide assembly further comprises a fixing member, the fixing member is connected with the backrest connecting member, and the other end of the drive shaft is rotatably connected with the fixing member.
[0012] In some embodiments, one end of the drive shaft is formed with a first connecting hole, the lumbar support connecting member is formed with a first through hole, and the lumbar support connecting member is rotatably connected with one end of the drive shaft through a first connecting shaft penetrating into the first connecting hole and the first through hole.
[0013] In some embodiments, the lumbar support connecting member is formed with a second through hole, the lumbar support body is formed with a second connecting hole, and the lumbar support body is rotatably connected with the lumbar support connecting member through a second connecting shaft penetrating into the second connecting hole and the second through hole.
[0014] In some embodiments, the guide assembly comprises a guide shell and guide members, the guide members are multiple, the guide members are sequentially sleeved in the guide shell, each guide member is movable in the front-rear direction relative to the guide shell, each adjacent two guide members have a first state and a second state, one of each adjacent two guide members is a first guide member, and the other is a second guide member, the second guide member is sleeved in the first guide member, when the adjacent two guide members are in the first state, the second guide member is completely located in the first guide member, and when the adjacent two guide members are in the second state, a part of the second guide member extends out of the first guide member.
[0015] According to the second aspect of the utility model, the chair comprises a backrest assembly and a lumbar support structure according to the first aspect of the utility model, the lumbar support structure is connected with the backrest assembly and movable in the front-rear direction relative to the backrest assembly.
[0016] According to the utility model discloses a seat, through setting above first aspect's waist support structure, thereby realized seat in narrow space seat waist support structure's long distance adjustment function, solved the adjustment distance limited problem of traditional slide groove pressure spring mode, seat structure is stable, and the comfort is high, and the security is good.
[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is the schematic diagram of the waist support structure according to the utility model embodiment;
[0019] Figure 2 is Figure 1 Another angle schematic diagram of the waist support assembly shown in figure 1;
[0020] Figure 3 is Figure 2 The cross-sectional schematic diagram of the waist support structure shown in figure 1.
[0021] Reference signs:
[0022] 100, waist support structure;1, waist support assembly;11, waist support body;12, waist support connecting piece;2, guide assembly;21, guide shell;22, guide piece;23, fixed part;3, driving part;31, driving shaft;4, first buffer;5, second buffer;6, backrest connecting piece;7, first connecting shaft;8, second connecting shaft. DETAILED DESCRIPTION
[0023] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model.
[0024] The following refers to Figures 1-3 The waist support structure 100 according to the first aspect embodiment of the utility model is described.
[0025] As Figures 1-3 Indicated, the waist support structure 100 according to the first aspect embodiment of the utility model comprises: waist support assembly 1, guide assembly 2 and driving part 3.
[0026] Specifically, the lumbar support structure 100 is arranged on the seat and connected with a backrest assembly of the seat, the guide assembly 2 extends in the front-rear direction and the length of the guide assembly 2 is adjustable, one end of the guide assembly 2 is connected with the backrest assembly, the other end of the guide assembly 2 is connected with the lumbar support assembly 1, and the driving shaft 31 of the driving member 3 is connected with the lumbar support assembly 1 to drive the lumbar support assembly 1 to move along the length direction of the guide assembly 2. It can be understood that the lumbar support assembly 1 is in contact with the waist of the user and fits the waist of the user to provide support for the waist of the user, the guide assembly 2 extends in the front-rear direction, the length of the guide 22 is adjustable to adjust the position of the lumbar support assembly 1 in the front-rear direction, and the driving shaft 31 of the driving member 3 is connected with the lumbar support assembly 1 to drive or pull the lumbar support assembly 1 to move along the length direction of the guide assembly 2.
[0027] Therefore, compared with the way of extending the lumbar support by cooperating the pressure spring with the sliding groove, the lumbar support structure 100 of the embodiment of the utility model directly connects the driving shaft 31 with the lumbar support assembly 1 and adjusts the length of the guide assembly 2 in the front-rear direction, so as to ensure that the lumbar support structure 100 has sufficient extension adjustment distance in a small space, provide longer extension adjustment distance for the user, improve the flexibility of the lumbar support structure 100, and the lumbar support structure 100 is simple and ingenious in design, low in failure rate and low in maintenance difficulty.
[0028] In some embodiments of the utility model, as shown in Figure 3 The guide assembly 2 comprises a guide shell 21 and a guide 22, the guide 22 is sleeved in the guide shell 21, and the guide 22 is movable relative to the guide shell 21 in the front-rear direction, and the front end of the guide 22 is connected with the lumbar support assembly 1. It can be understood that the guide shell 21 serves as an external frame to provide support for the guide 22, the guide 22 is arranged in the interior of the guide shell 21 and is movable in the front-rear direction of the guide shell 21, and since the guide 22 is connected with the lumbar support assembly 1, the guide 22 is movable relative to the guide shell 21 to adjust the position of the lumbar support assembly 1 in the front-rear direction. Therefore, the problem of limited adjustment distance existing in the traditional sliding groove and pressure spring mode is solved, and the lumbar support structure 100 of the embodiment of the utility model provides longer extension adjustment distance for the user.
[0029] In some embodiments of the utility model, as shown in Figure 2 And Figure 3As shown, the lumbar support assembly 1 comprises a lumbar support body 11 and a lumbar support connecting piece 12, the lumbar support connecting piece 12 is arranged between the lumbar support body 11 and the guide piece 22, the lumbar support connecting piece 12 is connected with the guide piece 22, and the lumbar support body 11 is connected with the lumbar support connecting piece 12. It can be understood that the lumbar support connecting piece 12 is located between the lumbar support body 11 and the guide piece 22, and the lumbar support connecting piece 12 is connected with the lumbar support body 11 and the guide piece 22, the lumbar support body 11 is in contact with the waist of the user, thereby, the connection mode between the lumbar support assembly 1 and the guide assembly 2 is simple, convenient to assemble and maintain, and the production cost and maintenance cost are reduced.
[0030] In some embodiments of the present application, as shown in Figure 3 As shown, the front end of the guide shell 21 is provided with a first buffer piece 4, at least part of the first buffer piece 4 is wrapped on the front end face of the guide shell 21, and / or the rear end of the guide shell 21 is provided with a second buffer piece 5, at least part of the second buffer piece 5 is wrapped on the rear end face of the guide shell 21. That is, the first buffer piece 4 can be arranged at the front end of the guide shell 21, the second buffer piece 5 can be arranged at the rear end of the guide shell 21, or the first buffer piece 4 and the second buffer piece 5 can be arranged at the front end and the rear end of the guide shell 21 respectively. In this way, when the guide piece 22 moves to the extreme position of the guide shell 21, the buffer piece can absorb and slow down the impact force, prevent hard collision from causing damage to the lumbar support structure 100, prolong the service life of the lumbar support structure 100, and reduce the noise generated by the impact; the buffer piece can gradually slow down when the guide piece 22 approaches the extreme position, making the movement more stable, thereby improving the comfort of the user, avoiding the discomfort caused by sudden stop; by wrapping the end face of the guide shell 21, the buffer piece can play a physical protection role, prevent foreign matter from entering or accidental collision, and enhance the overall stability and reliability of the lumbar support structure 100.
[0031] In order to ensure that the entire lumbar support structure 100 can be stably installed on the seat and can move synchronously with the adjustment of the reclining angle of the backrest, the rear end of the guide shell 21 is connected with the backrest connecting piece 6 of the backrest assembly, thereby ensuring that the lumbar support structure 100 remains relatively stable in the lumbar support position when the backrest angle changes.
[0032] In some embodiments of the present application, as shown in Figure 3 As shown, the guide assembly 2 further comprises a fixing piece 23, the fixing piece 23 is connected with the backrest connecting piece 6, and the other end of the drive shaft 31 is rotatably connected with the fixing piece 23. Thus, the connection between the guide assembly 2 and the backrest connecting piece 6 is strengthened, and the flexibility and reliability of the lumbar support structure 100 are ensured.
[0033] In some embodiments of the utility model, one end of driving shaft 31 is formed with first connecting hole, first through hole is formed on waist support connecting piece 12, waist support connecting piece 12 and one end of driving shaft 31 are rotatably connected through first connecting shaft 7 penetrating first connecting hole and first through hole. Therefore, the flexibility of waist support structure 100 during use is realized by first connecting shaft 7 penetrating first connecting hole and first through hole, and the reliability and user experience of waist support structure 100 are improved.
[0034] In some embodiments of the utility model, second through hole is formed on waist support connecting piece 12, second connecting hole is formed on waist support body 11, and waist support body 11 and waist support connecting piece 12 are rotatably connected through second connecting shaft 8 penetrating second connecting hole and second through hole. That is, the angle of waist support body 11 relative to waist support connecting piece 12 can be adjusted, so as to better adapt to the sitting posture of the user and provide more comfortable support for the waist of the user.
[0035] In some feasible embodiments of the utility model, the guide assembly 2 comprises a guide shell 21 and a plurality of guide pieces 22, the plurality of guide pieces 22 are sequentially sleeved in the guide shell 21, each guide piece 22 is movable in the front-back direction relative to the guide shell 21, each adjacent two guide pieces 22 have a first state and a second state, one of each adjacent two guide pieces 22 is a first guide piece, and the other is a second guide piece, the second guide piece is sleeved in the first guide piece, when the adjacent two guide pieces 22 are in the first state, the second guide piece is completely located in the first guide piece, and when the adjacent two guide pieces 22 are in the second state, a part of the second guide piece extends out of the first guide piece. It can be understood that when the adjacent two guide pieces 22 are in the first state, the smaller guide piece 22 (the second guide piece) is completely located in the larger guide piece 22 (the first guide piece), at this time the whole system is in the contracted state; when the adjacent two guide pieces 22 are in the second state, a part of the second guide piece extends out of the first guide piece, so that the overall length is increased, thereby realizing the stretching function. Thus, through the multi-stage telescopic design, all the guide pieces 22 can be stored in a smaller space when not in use, the installation space is saved, and the adjustment length of the waist support structure 100 is increased, so that even in a narrow space, a sufficient adjustment distance can be realized.
[0036] As Figure 3 shown in one embodiment, the guide piece 22 has one, when the guide piece 22 is completely located in the guide shell 21, the guide piece 22 and the guide shell 21 are in the first state, and when a part of the guide piece 22 extends out of the guide shell 21, the guide piece 22 and the guide shell 21 are in the second state.
[0037] The seat furniture according to the second aspect of the present application comprises a backrest assembly and the lumbar support structure 100 according to the first aspect of the present application, the lumbar support structure 100 is connected with the backrest assembly and can move in the front-rear direction relative to the backrest assembly.
[0038] The seat furniture according to the embodiment of the present application, by setting the lumbar support structure 100 of the first aspect of the present application, realizes the long-distance adjustment function of the seat furniture lumbar support structure 100 in a small space, solves the problem of limited adjustment distance existing in the traditional sliding groove compression spring mode, and has stable seat furniture structure, high comfort and good safety.
[0039] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0040] 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 defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0041] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0042] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without mutual contradiction.
[0043] 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 lumbar support structure, characterized in that, The lumbar support structure is disposed on the seat and connected to the backrest assembly of the seat, and the lumbar support structure includes: Lumbar support components; A guide assembly, the guide assembly extending in a front-back direction and the length of the guide assembly being variable, one end of the guide assembly being connected to the backrest assembly, and the other end of the guide assembly being connected to the lumbar support assembly; A driving component, the driving shaft of which is connected to the lumbar support assembly to drive the lumbar support assembly to move along the length direction of the guide assembly.
2. The lumbar support structure according to claim 1, characterized in that, The guide assembly includes a guide shell and a guide member. The guide member is fitted inside the guide shell and can move in the front-back direction relative to the guide shell. The front end of the guide member is connected to the lumbar support assembly.
3. The lumbar support structure according to claim 2, characterized in that, The lumbar support assembly includes a lumbar support body and a lumbar support connector. The lumbar support connector is disposed between the lumbar support body and the guide member. The lumbar support connector is connected to the guide member, and the lumbar support body is connected to the lumbar support connector.
4. The lumbar support structure according to claim 2, characterized in that, The guide shell has a first buffer at its front end, at least a portion of which covers the front end face of the guide shell, and / or the guide shell has a second buffer at its rear end, at least a portion of which covers the rear end face of the guide shell.
5. The lumbar support structure according to claim 4, characterized in that, The rear end of the guide shell is connected to the backrest connector of the backrest assembly.
6. The lumbar support structure according to claim 5, characterized in that, The guide assembly also includes a fixing member, which is connected to the backrest connector, and the other end of the drive shaft is rotatably connected to the fixing member.
7. The lumbar support structure according to claim 3, characterized in that, One end of the drive shaft has a first connecting hole, and the lumbar support connector has a first through hole. The lumbar support connector and one end of the drive shaft are rotatably connected through the first connecting shaft passing through the first connecting hole and the first through hole.
8. The lumbar support structure according to claim 3, characterized in that, The lumbar support connector has a second through hole, and the lumbar support body has a second connecting hole. The lumbar support body and the lumbar support connector are rotatably connected by a second connecting shaft passing through the second connecting hole and the second through hole.
9. The lumbar support structure according to any one of claims 1-8, characterized in that, The guiding assembly includes a guide shell and multiple guide members. The multiple guide members are sequentially sleeved inside the guide shell. Each guide member can move relative to the guide shell in the front-back direction. Each pair of adjacent guide members has a first state and a second state. One of each pair of adjacent guide members is the first guide member, and the other is the second guide member. The second guide member is sleeved inside the first guide member. When the two adjacent guide members are in the first state, the second guide member is completely located inside the first guide member. When the two adjacent guide members are in the second state, a portion of the second guide member extends out of the first guide member.
10. A seating arrangement, characterized in that, include: The backrest assembly and the lumbar support structure according to any one of claims 1-9, wherein the lumbar support structure is connected to the backrest assembly and is movable relative to the backrest assembly in the fore-and-aft direction.