Seat lumbar support

Abstract

The application discloses a seat waist support, which comprises a backrest and a supporting body installed in the backrest, the upper end of the supporting body is rotatably connected to the backrest; a jacking mechanism is arranged in the backrest, and the jacking mechanism is used for driving the upper end of the supporting body to rotate around the backrest, so that the lower part of the supporting body can move forward and backward relative to the backrest. The seat waist support has the beneficial effects that the jacking mechanism works, the supporting body can be rotated around the upper end, the lower part of the supporting body moves forward and backward, the forward and backward protruding state of the waist region of the seat can be changed, and the forward and backward adjustment of the seat waist support is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile seats, in particular to a seat waist support. BACKGROUND

[0002] At present, the automobile industry is booming, and people use cars more frequently, so they spend more time in the car. As the part that drivers and passengers contact for a long time during driving, the comfort and functionality of the seat are increasingly valued. The waist is the core stress part of the human body, and if it cannot be well supported and relaxed for a long time in the driving or riding state, it is easy to cause fatigue, soreness and other problems, which seriously affects the driving experience and even harms the health. Therefore, among many seat functions, the waist support is crucial for the driver and passenger.

[0003] However, the interior of the existing seat has already installed a large number of other functional components, such as massage devices, heating and ventilation systems, seat adjustment motors, etc., and the space is very limited. At this time, if a traditional mechanical multi-directional adjustable waist support is installed, the internal structure of the seat will be too large and bulky, which is not conducive to the lightweight design of the seat. SUMMARY

[0004] Therefore, the present application provides a seat waist support with the advantages of simple and compact structure.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] A seat waist support, the key of which is that it comprises a backrest and a support body installed in the backrest, the upper end of the support body being rotatably connected to the backrest;

[0007] The backrest is provided with a jacking mechanism, which is used to drive the upper end of the support body to rotate around the backrest, so that the lower part of the support body can move forward and backward relative to the backrest.

[0008] With the above structure, the jacking mechanism works to rotate the support body around the upper end, and the lower part of the support body moves forward and backward, which can change the forward and backward protrusion state of the waist area of the seat, and realize the forward and backward adjustment of the seat waist support.

[0009] As a preferred embodiment, the jacking mechanism is located at the rear side of the support body and comprises an air bag fixed in the backrest. With the above structure, the air bag is inflated and expanded, which can push the lower part of the support body forward.

[0010] As preferred: the lifting mechanism further comprises a mounting plate arranged at the rear side of the support body, the upper end of the support body is rotatably connected with the upper end of the mounting plate, the lower end of the support body is in a suspended state, and the air bag is fixed on the mounting plate. With the above structure, when the air bag is inflated, the upper end of the support body can be rotated upward around the upper end of the mounting plate, and the lower end of the support body can be pushed forward relative to the backrest. When the air bag is deflated, the support body can be rotated downward under the action of gravity, and the lower end of the support body can move towards the mounting plate. Such a structure is simple and compact, and can effectively save space.

[0011] As preferred: the support body is integrated with a massager. With the above structure, the car seat can realize compact and lightweight design on the basis of having functions such as lumbar support and massage.

[0012] As preferred: the upper end of the air bag is fixed on the mounting plate by a buckle column. With the above structure, the air bag can be fixed to prevent displacement or falling due to a large external force.

[0013] As preferred: the number of air bags is at least two, and adjacent two air bags are arranged in an overlapping manner. With the above structure, the stroke of the lumbar support can be increased.

[0014] As preferred: the number of air bags is two, which are an upper air bag and a lower air bag, and the lower air bag is clamped between the lower part of the upper air bag and the mounting plate. With the above structure, the stroke can be increased in a limited space to make the lifting mechanism more compact.

[0015] As preferred: the support body is arranged in the backrest through a base plate, the support body is slidably arranged on the front side of the base plate, and the upper end of the base plate is rotatably connected with the upper end of the mounting plate. With the above structure, the massager integrated on the support body can massage the user's waist and back in a large range through the up-and-down sliding of the support body, and the up-and-down convex state of the waist area of the seat can be changed to realize the up-and-down adjustment of the lumbar support.

[0016] As preferred: the upper end of the base plate is rotatably connected with the mounting plate through a rotating support. With the above structure, space can be saved, and the flexibility and adaptability of the whole structure are increased.

[0017] As preferred: a support plate is arranged in the backrest, the support plate is a flexible plastic plate, the support plate is located on the front side of the support body, and the support body is in sliding contact with the back side of the support plate. With the above structure, when the lower part of the support body is driven to move forward by the lifting mechanism, the support body can cause the support plate to deform and support the user's waist, and when the support body returns to the initial state, the support plate can restore to the original state to ensure the flatness of the surface of the backrest.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. The seat waist support provided by the present application, by rotating the upper end of the support body on the backrest, driving the upper end of the support body to rotate around the backrest by the jacking mechanism, and enabling the lower part of the support body to move forward relative to the backrest, the front and rear convex states of the waist area of the seat can be changed. By controlling the rotation angle of the support body, the forward and rear adjustment function of the waist support can be realized.

[0020] 2. The air bag is used to realize jacking, which has the advantages of simple and compact structure, and can help to integrate a relatively large mechanical massager in the support body, providing a flexible and effective way for product function realization and user experience improvement. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a front view of the seat waist support;

[0022] Figure 2 is a reference diagram of the seat waist support in an unused state;

[0023] Figure 3 is a reference diagram of the seat waist support in a used state;

[0024] Figure 4 is a schematic view showing the structure of the back side of the seat waist support;

[0025] Figure 5 is a structural schematic view of the support body 1 after installing the baffle 11;

[0026] Figure 6 is a schematic view showing the internal structure of the support body 1;

[0027] Figure 7 is a structural schematic view of the jacking mechanism 2. DETAILED DESCRIPTION

[0028] The present application will be further described below in conjunction with the embodiments and the accompanying drawings.

[0029] As shown in Figure 1 , a seat waist support includes a backrest A and a support body 1 installed in the backrest A, wherein the upper end of the support body 1 is rotatably connected to the backrest A. As shown in Figure 2 and 3 , the backrest A is provided with a jacking mechanism 2, which can drive the upper end of the support body 1 to rotate around the backrest A, so that the lower part of the support body 1 can move forward and rearward relative to the backrest A.

[0030] Based on the above structure design, by rotating the upper end of the support body 1 on the backrest A, the lifting mechanism 2 drives the upper end of the support body 1 to rotate around the backrest A, and the lower part of the support body 1 moves forward and backward, which can change the forward and backward protrusion state of the seat waist area, and realize the forward and backward adjustment of the waist support.

[0031] In actual application, the massager B can be arranged in the support body 1, so that the car seat has the functions of waist support and massage, and realizes compact and lightweight design. Specifically, referring to Figure 5 and 6 , the massager B includes a swing arm B1 rotatably arranged on the support body 1 and a driving mechanism, the distal end of the swing arm B1 is provided with a massage head B2, and the driving mechanism is used to make the swing arm B1 reciprocate within a certain range along the width direction of the support body 1 (the width direction of the support body 1 corresponds to the width direction of the car seat), so that the massage head B2 at the distal end of the swing arm B1 forms kneading massage.

[0032] Further, as shown in Figure 2 and 3 , the lifting mechanism 2 is located at the rear side of the support body 1, and includes an air bag 21 fixedly arranged in the backrest A, as shown in Figure 6 , the air bag 21 is connected with an air pump 25. When the waist support is not used, the air bag 21 is in an un-inflated state, and the air bag 21 abuts against the rear side of the support body 1. When the waist support function is needed, the air pump 25 inflates the air bag 21, and the air bag 21 expands, so that the lower part of the support body 1 can be pushed out forward.

[0033] Further, as shown in Figure 2 and 3 , the lifting mechanism 2 further includes a mounting plate 22 arranged at the rear side of the support body 1, the upper end of the support body 1 is rotatably connected with the upper end of the mounting plate 22, the lower end of the support body 1 is in a suspended state, and the air bag 21 is fixedly arranged on the mounting plate 22. When the air bag 21 expands, the upper end of the support body 1 can be rotated upward around the upper end of the mounting plate 22, and the lower end of the support body 1 can be pushed out forward relative to the backrest A. When the air bag 21 deflates, the support body 1 can be rotated downward under the action of gravity, and the lower end of the support body 1 can move towards the mounting plate 22. Such structure design is simple and compact, does not occupy extra space, and can help to integrate a relatively large mechanical massager in the support body 1.

[0034] In order to improve the stroke of the waist support forward and backward adjustment, the number of air bags 21 is at least two, and the adjacent two air bags 21 are arranged in overlap.

[0035] In the embodiment, the number of air bags 21 is two. Specifically, please refer to Figure 3 and 7, two air bags 21 are distributed up and down along the height direction of the backrest A, the two air bags 21 are respectively an upper air bag 211 and a lower air bag 212, and the lower air bag 212 is clamped between the lower part of the upper air bag 211 and the mounting plate 22, that is, the two air bags 21 partially overlap. In this way, the stroke can be increased in a limited space, so that the lifting mechanism 2 is more compact, and at the same time, the support force of the overlapping part of the two air bags 21 is more uniform and stable, further improving the comfort and stability of the overall support.

[0036] In this embodiment, the front side surface of the mounting plate 22 is provided with a felt material, and the air bag 21 is fixed on the felt material. The felt material can stably fix the air bag 21 on the mounting plate 22, and at the same time, the felt material can act as a buffer layer to reduce friction between the air bag and other components and reduce noise.

[0037] Further Figure 7 , the upper ends of the two air bags 21 are fixed on the mounting plate 22 by the buckle column 23. In this way, the air bag 21 can be further constrained to prevent displacement or falling of the air bag 21 due to a large external force, thereby improving the stability of the air bag 21 during use.

[0038] As shown in Figure 1 , a support plate 4 is installed in the backrest A, and the support plate 4 is a flexible plastic plate. The support plate 4 is located on the front side of the support body 1 and is in contact with the support body 1. In use, the support plate 4 corresponds to the user's waist and back position. Figure 2 and Figure 3 It can be seen that when the lifting mechanism 2 drives the lower part of the support body 1 to move forward, the support body 1 can cause the support plate 4 to deform and act as support on the user's waist, and when the support body 1 returns to the initial state, the support plate 4 can restore to the original state to ensure the flatness of the surface of the backrest A.

[0039] As shown in Figure 6 , the support body 1 is arranged in the backrest A through the base plate A1, the support body 1 is slidably arranged on the front side of the base plate A1, and the support body 1 is in sliding contact with the back side of the support plate 4, and the upper end of the base plate A1 is rotatably connected with the upper end of the mounting plate 22. By sliding the support body 1 up and down, the massager integrated thereon can massage the user's waist and back in a large range, and at the same time, by moving the support body 1 up and down, the convex state of the seat waist area can be changed, realizing the up and down adjustment of the waist support, so that the seat waist support provided by the embodiment has the functions of front and rear, up and down adjustment, further improving the comfort of the user when sitting.

[0040] Further as Figure 4As shown, the mounting plate 22 is fixed with an upwardly extending suspension wire 3, and a rotating bracket 31 is arranged on the suspension wire 3, and the upper end of the base plate A1 is rotatably connected with the upper end of the mounting plate 22 through the rotating bracket 31. In this way, the space can be saved, and the flexibility and adaptability of the whole structure are increased.

[0041] Please refer to Figure 2 and 5 In order to protect the components on the support body 1, a baffle 11 is fixed on the support body 1, and the front side of the baffle 11 is in sliding contact with the back side of the support plate 4.

[0042] Finally, it should be noted that the above description is only for the preferred embodiments of the present application, and those skilled in the art can make various similar modifications under the inspiration of the present application without departing from the purpose and scope of the present application, and such modifications fall within the protection scope of the present application.

Claims

1. A seat lumbar support characterised by: The backrest (A) and the support body (1) installed in the backrest (A), the upper end of the support body (1) is rotatably connected to the backrest (A); The backrest (A) is provided with a jacking mechanism (2), the jacking mechanism (2) is used for driving the upper end of the support body (1) to rotate around the backrest (A), so that the lower part of the support body (1) can move forward and backward relative to the backrest (A); The jacking mechanism (2) is located at the rear side of the support body (1), which includes a gas bag (21) fixed in the backrest (A); the jacking mechanism (2) further includes a mounting plate (22) arranged at the rear side of the support body (1), the upper end of the support body (1) is rotatably connected to the upper end of the mounting plate (22), the lower end of the support body (1) is in a suspended state, and the gas bag (21) is fixed on the mounting plate (22); The support body (1) is arranged in the backrest (A) through a base plate (A1), the support body (1) is slidably arranged on the front side of the base plate (A1), and the upper end of the base plate (A1) is rotatably connected to the upper end of the mounting plate (22).

2. The seat lumbar support of claim 1, wherein: The support body (1) is integrated with a massager.

3. The seat lumbar support of claim 1, wherein: The upper end of the gas bag (21) is fixed on the mounting plate (22) through a buckle column (23).

4. The seat lumbar support of claim 1, wherein: The number of the gas bag (21) is at least two, and adjacent two gas bags (21) are arranged in overlap.

5. The seat lumbar support of claim 1, wherein: The number of the gas bag (21) is two, which are an upper gas bag and a lower gas bag, and the lower gas bag is clamped between the lower part of the upper gas bag and the mounting plate (22).

6. The seat lumbar support of claim 1, wherein: The upper end of the base plate (A1) and the mounting plate (22) are rotatably connected through a rotating support (31).

7. The seat lumbar support of claim 1, wherein: The backrest (A) is provided with a support plate (4), the support plate (4) is a flexible plastic plate, the support plate (4) is located at the front side of the support body (1), and the support body (1) and the back side of the support plate (4) are in sliding contact.

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