Four-direction adjustable waist support system

Abstract

The utility model relates to the technical field of electric seats, and discloses a four-direction adjustable waist supporting system which comprises a guide supporting frame, an upper bridge, a lower bridge, a driver assembly and a supporting plate, and the guide supporting frame comprises a guide steel wire and a connecting seat arranged on the guide steel wire; the upper bridge is movably arranged on the upper half portion of the guide steel wire, the lower bridge is movably arranged on the lower half portion of the guide steel wire, a supporting elastic piece is connected between the upper bridge and the lower bridge, and the supporting elastic piece is arched or laid flat according to the change of the distance between the upper bridge and the lower bridge; the driver assembly is used for driving the upper bridge and the lower bridge to move along the guide steel wires respectively, so that the relative position and the arching degree of the supporting elastic piece on the guide supporting frame are changed; one end of the supporting plate is rotationally connected with the connecting base, and the arched supporting elastic piece abuts against the back face of the supporting plate. According to the four-direction adjustable waist supporting system, on the basis that the four-direction adjusting function of the waist supporting strength is achieved, the size of the system is reduced, and the stability and the adjusting speed are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric seat technical field especially relates to a four -way adjustable waist support system. BACKGROUND

[0002] Now most vehicle types all have adjustable electric seats to adjust according to the respective needs of the driver and passenger, especially improve the waist support and adaptability of the driver, and reduce the driving fatigue. The adjustable waist support is more humanized than the fixed waist support design, and the applicability is high. However, the existing electric seat is complex in structure, high in cost when realizing the front and rear up and down four -way adjustment, or the driver is set on the side of the waist support system, occupies the extra space, or needs the movement of the driver itself to realize the up and down adjustment, leading to the poor stability of the driving system, or the two groups of driving shafts respectively realize the adjustment of the flat / arch, up / down, and the efficiency is low, so it is necessary to carry out technical improvement. SUMMARY

[0003] Based on the above problems, the purpose of the utility model is to provide a four -way adjustable waist support system to simplify the structure of the electric seat, reduce the space occupation and cost, and improve the structural stability and adjustment speed.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A four -way adjustable waist support system, including guide support frame, upper bridge, lower bridge, driver assembly and support plate, wherein:

[0006] The guide support frame includes a guide steel wire and a connecting seat arranged on the guide steel wire;

[0007] The upper bridge is movably arranged on the upper half of the guide steel wire, and the lower bridge is movably arranged on the lower half of the guide steel wire, and the support spring is connected between the upper bridge and the lower bridge, and the support spring is arched or flattened according to the distance change of the upper bridge and the lower bridge;

[0008] The driver assembly is fixed on the guide steel wire and located between the upper bridge and the lower bridge, and the driver assembly is used for driving the upper bridge and the lower bridge to move along the guide steel wire respectively, and then changing the relative position and arching degree of the support spring on the guide support frame;

[0009] One end of the support plate is rotatably connected with the connecting seat, and the arched support spring abuts against the back surface of the support plate.

[0010] As an optional scheme, the guide steel wire is U-shaped, and the two ends of the upper bridge and the two ends of the lower bridge are respectively slidably arranged on the two parallel parts of the guide steel wire, and the connecting seat is fixed on the open end of the guide steel wire.

[0011] As an option, the driver assembly comprises a first driving screw and a second driving screw rotating independently, the first driving screw is equipped with a first nut, the second driving screw is equipped with a second nut, the first nut is connected with the upper bridge buckle, and the second nut is connected with the lower bridge buckle.

[0012] As an option, the supporting elastic sheet comprises an elastic sheet part and connecting parts at two ends of the elastic sheet part, the upper bridge and the lower bridge are respectively provided with mounting grooves limiting the ends of the connecting parts.

[0013] As an option, the two sides of the connecting part are respectively provided with limiting protrusions, and the side wall of the mounting groove is provided with a clamping groove limiting the limiting protrusions.

[0014] As an option, two supporting elastic sheets are arranged in parallel and at intervals.

[0015] As an option, the connecting seat is provided with a rotating shaft part, and the upper end of the supporting plate is provided with a buckle part capable of being clamped and relatively rotating with the rotating shaft part.

[0016] As an option, the connecting seat and the shell of the driver assembly are respectively injection molded and fixed on the guide steel wires.

[0017] As an option, the supporting plate is an elastic plastic part, and the supporting plate is provided with a plurality of hollow holes.

[0018] The utility model discloses the beneficial effect:

[0019] Compared with the prior art, the four-way adjustable waist support system has the following advantages:

[0020] 1) can provide good waist and back support, and realize four-way adjustment of waist support strength and position according to the needs of different passengers;

[0021] 2) the driver assembly is fixed between the guide steel wires of the guide support frame, and compared with the side driver form, the system volume is reduced under the premise of obtaining the same function and performance, and the stability of the system is improved due to the fixation of the driver assembly;

[0022] 3) by changing the distance between the upper bridge and the lower bridge and the relative position of the upper bridge and the lower bridge on the guide support frame, the support strength range and the support position range can be adjusted, and the expansibility is strong;

[0023] 4) the driver assembly can drive the upper bridge or the lower bridge to move towards or away from each other or in the same direction along the guide steel wire, and the adjustment is flexible, and the adjustment speed can be significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1It is the explosion view of the four-direction adjustable waist support system provided by the embodiment of the utility model;

[0025] Fig. 2 It is the front view of the four-direction adjustable waist support system provided by the embodiment of the utility model;

[0026] Fig. 3 It is the back view of the four-direction adjustable waist support system provided by the embodiment of the utility model.

[0027] In the drawings:

[0028] 1, guiding support frame;11, guiding steel wire;12, connecting seat;13, rotating shaft part;

[0029] 2, upper bridge;21, installation slot;22, clamping groove;

[0030] 3, lower bridge;

[0031] 4, driver assembly;41, first drive screw;42, second drive screw;43, first nut;44, second nut;

[0032] 5, support plate;51, buckle part;52, hollow hole;

[0033] 6, supporting elastic sheet;61, elastic sheet part;62, connecting part;63, limiting protrusion. DETAILED DESCRIPTION

[0034] The utility model will be further explained in detail below in combination with the drawings and embodiments.It can be understood that the specific embodiments described here are only used to explain the utility model, and not limit the utility model.In addition, it needs to be explained that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0035] In the description of the utility model, unless another explicit provision and limitation, the terms "connect", "connection", "fix" should be understood broadly, for example, can be fixed connection, can be detachable connection, or be integrated;Can be mechanical connection, can be electrical connection;Can be directly connected, can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them.Moreover, first feature "on", "above" and "upper surface of" second feature includes that first feature is directly above and obliquely above second feature, or only indicates that horizontal height of first feature is higher than second feature.First feature "under", "below" and "under surface of" second feature includes that first feature is directly below and obliquely below second feature, or only indicates that horizontal height of first feature is less than second feature.

[0037] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.

[0038] In addition, the terms "first", "second" and the like are only used for differentiation in description, and have no special meaning.

[0039] Please refer to Figs. 1 to 3 As shown in the figure, the embodiment provides a four-way adjustable waist support system, which can be arranged between the seat framework and the seat foam layer, comprising a guide support frame 1, an upper bridge 2, a lower bridge 3, a driver assembly 4 and a support plate 5, wherein:

[0040] The guide support frame 1 comprises a guide steel wire 11 and a connecting seat 12 arranged on the guide steel wire 11;

[0041] The upper bridge 2 is movably arranged on the upper half of the guide steel wire 11, and the lower bridge 3 is movably arranged on the lower half of the guide steel wire 11, and the support spring 6 is connected between the upper bridge 2 and the lower bridge 3, and the support spring 6 is arched or flattened according to the distance change of the upper bridge 2 and the lower bridge 3;

[0042] The driver assembly 4 is fixed on the guide steel wire 11 and located between the upper bridge 2 and the lower bridge 3, and the driver assembly 4 is used for driving the upper bridge 2 and the lower bridge 3 to move along the guide steel wire 11 respectively, thereby changing the relative position and arching degree of the support spring 6 on the guide support frame 1;

[0043] One end of the support plate 5 is rotatably connected with the connecting seat 12, and the arched support spring 6 abuts against the back surface of the support plate 5.

[0044] Therefore, by controlling the movement of the upper bridge 2 and the lower bridge 3 through the fixed driver assembly 4, the four-way adjustment function of the waist support strength is realized, the system volume is reduced, and the stability and adjustment speed are improved.

[0045] Optionally, the guide wire 11 is in U shape, the two ends of the upper bridge 2 and the two ends of the lower bridge 3 are respectively slidably arranged on the two parallel parts of the guide wire 11, and the connecting seat 12 is fixed on the open end of the guide wire 11.

[0046] Thus, the structural strength and stability of the guide support frame 1 are ensured, and the moving accuracy of the upper bridge 2 and the lower bridge 3 is ensured, and the overall structure is simplified.

[0047] Optionally, the driver assembly 4 comprises a first driving screw 41 and a second driving screw 42 which rotate independently, the first driving screw 41 is provided with a first nut 43, the second driving screw 42 is provided with a second nut 44, the first nut 43 is buckled connected with the upper bridge 2, and the second nut 44 is buckled connected with the lower bridge 3.

[0048] Further, the first nut 43 and the second nut 44 are respectively provided with buckling parts, the upper bridge 2 and the lower bridge 3 are respectively provided with clamping groove parts, the buckling parts are clamped with the clamping groove parts, the first nut 43 is fixedly connected to the upper bridge 2, and the second nut 44 is fixedly connected to the lower bridge 3.

[0049] Thus, by respectively controlling the rotation of the first driving screw 41 and the second driving screw 42, the displacement of the upper bridge 2 and the lower bridge 3 is accurately controlled, when the upper bridge 2 and the lower bridge 3 move towards or away from each other, the support spring 6 connecting the upper bridge 2 and the lower bridge 3 will be deformed and arched, or the arching height will change, because the arching part of the support spring 6 tightly abuts and supports the support plate 5, by adjusting the arching degree of the support spring 6, the support degree of the support plate 5 can be adjusted, and the waist support function of different degrees is realized; when the upper bridge 2 or the lower bridge 3 moves in the same direction and synchronously, the support spring 6 moves accordingly, and further drives the support position of the support plate 5 to move up and down along the guide wire 11, and the function of up and down adjustment of the waist support position is realized.

[0050] Optionally, the support spring 6 comprises a spring part 61 and a connecting part 62 located at both ends of the spring part 61, and the upper bridge 2 and the lower bridge 3 are respectively provided with a mounting groove 21 limiting the end of the connecting part 62. In the embodiment, the structures of the upper bridge 2 and the lower bridge 3 are similar, and the upper bridge 2 is taken as an example for detailed description.

[0051] Thus, the middle part of the support spring 6 can be normally arched, and the top pressing function of the support spring 6 on the support plate 5 is ensured.

[0052] Further, the two sides of the connecting part 62 are respectively provided with a limiting protrusion 63, and the side wall of the mounting groove 21 is provided with a clamping groove 22 limiting the limiting protrusion 63.

[0053] Thus, the limiting protrusion 63 of the connecting portion 62 is tightly matched with the clamping groove 22 on the side wall of the mounting groove 21, ensuring that the supporting elastic sheet 6 is stable and reliable during movement, and the two ends of the supporting elastic sheet 6 are not easy to come out of the mounting groove 21.

[0054] Optionally, two supporting elastic sheets 6 are arranged in parallel and at intervals.

[0055] Thus, one supporting elastic sheet 6 is connected with one end of the upper bridge 2 and one end of the lower bridge 3 respectively, and the other supporting elastic sheet 6 is connected with the other end of the upper bridge 2 and the other end of the lower bridge 3 respectively, forming a double supporting structure, further enhancing the stability and uniformity of waist support, and improving the use experience.

[0056] Optionally, the connecting seat 12 is provided with a rotating shaft portion 13, and the upper end of the supporting plate 5 is provided with a buckle portion 51 which is clamped with the rotating shaft portion 13 and can rotate relatively.

[0057] Thus, the supporting plate 5 can flexibly adjust its own angle under the action of the supporting elastic sheet 6 at different positions and different arch heights, adapt to the waist curve of different users, further optimize the supporting effect, and improve the comfort.

[0058] Optionally, the connecting seat 12 and the shell of the driver assembly 4 are respectively injection molded and fixed on the guide steel wire 11.

[0059] Thus, the structural reliability of the driver assembly 4 and the guide support frame 1 is improved, the assembly time and cost are reduced, and the durability and stability of the overall structure are enhanced.

[0060] Optionally, the supporting plate 5 is an elastic plastic part, and the supporting plate 5 is provided with a plurality of hollow holes 52.

[0061] Thus, the supporting plate 5 has sufficient elastic deformation capacity, and the weight of the supporting plate 5 is reduced, so as to better fit the waist curve of the user and improve the support comfort.

[0062] In summary, the four-way adjustable waist support system can meet the adjustment needs of different positions and different support degrees, provide personalized waist support experience for users, effectively relieve fatigue caused by long-time sitting posture, improve the overall comfort and functionality of the electric seat, and in addition to meeting the functionality, optimize the product structure and improve the user operation experience.

[0063] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A four-way adjustable lumbar support system characterized by, The application relates to a guiding support frame (1), an upper bridge (2), a lower bridge (3), a driver assembly (4) and a support plate (5), wherein: The guiding support frame (1) comprises a guiding steel wire (11) and a connecting seat (12) arranged on the guiding steel wire (11); The upper bridge (2) is movably arranged on the upper half of the guiding steel wire (11), the lower bridge (3) is movably arranged on the lower half of the guiding steel wire (11), and a support spring (6) is connected between the upper bridge (2) and the lower bridge (3); the support spring (6) is arched or flattened according to the distance change between the upper bridge (2) and the lower bridge (3); The driver assembly (4) is fixed on the guiding steel wire (11) and located between the upper bridge (2) and the lower bridge (3); the driver assembly (4) is used for driving the upper bridge (2) and the lower bridge (3) to move along the guiding steel wire (11) respectively, so as to change the relative position and arching degree of the support spring (6) on the guiding support frame (1); One end of the support plate (5) is rotationally connected with the connecting seat (12), and the arched support spring (6) abuts against the back of the support plate (5).

2. The four-way adjustable lumbar support system of claim 1, wherein, The guiding steel wire (11) is in a U shape, the two ends of the upper bridge (2) and the two ends of the lower bridge (3) are respectively slidably arranged on two parallel parts of the guiding steel wire (11), and the connecting seat (12) is fixed on the open end of the guiding steel wire (11).

3. The four-way adjustable lumbar support system of claim 1, wherein, The driver assembly (4) comprises independently rotating first and second driving lead screws (41) and (42), the first driving lead screw (41) is provided with a first nut (43), the second driving lead screw (42) is provided with a second nut (44), the first nut (43) is buckled with the upper bridge (2), and the second nut (44) is buckled with the lower bridge (3).

4. The four-way adjustable lumbar support system of claim 1, wherein, The support spring (6) comprises a spring part (61) and connecting parts (62) located at the two ends of the spring part (61), and the upper bridge (2) and the lower bridge (3) are respectively provided with mounting grooves (21) for limiting the end parts of the connecting parts (62).

5. The four-way adjustable lumbar support system of claim 4, wherein, The two sides of the connecting part (62) are respectively provided with limiting protrusions (63), and the side wall of the mounting groove (21) is provided with clamping grooves (22) for limiting the limiting protrusions (63).

6. The four-way adjustable lumbar support system of claim 1, wherein, The support spring (6) is provided with two parallel and spaced support springs (6).

7. The four-way adjustable lumbar support system of claim 1, wherein, The connecting seat (12) is provided with a rotating shaft part (13), and the upper end of the support plate (5) is provided with a buckle part (51) which can be buckled with the rotating shaft part (13) and can rotate relatively.

8. The four-way adjustable lumbar support system of claim 1, wherein, The connecting seat (12) and the shell of the driver assembly (4) are respectively injection-molded and fixed on the guiding steel wire (11).

9. The four-way adjustable lumbar support system of claim 1, wherein, The support plate (5) is an elastic plastic part, and a plurality of hollow holes (52) are arranged on the support plate (5).

Images