A lumbar support for a multi-functional vehicle

Abstract

The utility model discloses a waist rest of multi -functional car, including support, waist rest base body, supplement base body and side base body, waist rest base body is located the top of support and can adjust height, and the front end of waist rest base body is the lamination camber surface of upper convexity and lower concave, and supplement base body is located the space of waist rest base body lower concave, is used for filling the waist department of driver and waist rest base body between, two groups of side base body are distributed on the both sides of waist rest base body, and side base body has the lateral support camber surface of inclined orientation, and lateral support camber surface covers the flexible layer, and the flexible layer has multiple groups of convex bag, and the inflatable bag is arranged between the flexible layer and lateral support camber surface, and the inflatable bag is connected with multiple groups of inflation strip, and multiple groups of inflation strip respectively one one correspondence lead into multiple groups of convex bag, and the inflatable bag can control the inflation degree of multiple groups of inflation strip, and lateral support camber surface gives the driver trunk stable support and wrapping from the side rear, thereby reduces the lateral deflection of driver when driving multi -functional car on the bumpy road, improves stability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle accessories technology, specifically a lumbar support for a multi-functional vehicle. Background Technology

[0002] Multi-functional four-wheel drive vehicles can be used for leisure and recreation on beaches, riverbanks, and flat forest trails, allowing ordinary people to safely and easily experience the driving pleasure of conquering complex terrains, explore nature in depth, and enrich family and social life. They are a popular choice for family outdoor weekend trips and off-road gatherings with friends, enhancing emotional communication.

[0003] Multi-functional four-wheel drive vehicles generally do not have lumbar support or only have a very simple lumbar support, resulting in poor adaptability. At the same time, when facing some bumpy roads, the simple lumbar support is not supportive enough, which can easily cause the driver to sway to the side. Therefore, this utility model proposes a lumbar support for multi-functional vehicles that can solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a lumbar support for a multi-functional vehicle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lumbar support for a multi-functional vehicle, comprising:

[0006] The bracket is fixedly connected to the frame of the multi-purpose vehicle;

[0007] The waist support base is located at the top of the bracket and its height is adjustable. The front end of the waist support base is a convex-concave conforming curved surface.

[0008] A supplementary base, located in the recessed space of the lumbar support base, is used to fill the lumbar gap between the driver and the lumbar support base;

[0009] The side base has two sets, symmetrically distributed on both sides of the waist-supporting base. The side base has a lateral support curved surface with an inclined orientation. The lateral support curved surface is covered with a flexible layer. The flexible layer has multiple sets of convex pouches. An air bag is set between the flexible layer and the lateral support curved surface. The air bag is connected to multiple sets of expansion strips. The multiple sets of expansion strips are respectively inserted into the multiple sets of convex pouches. The air bag can be inflated to control the expansion degree of the multiple sets of expansion strips.

[0010] As a preferred technical solution, the bracket is provided with a pad, and the pad has multiple sets of slots vertically spaced apart. At least one set of inserts for passing through the slots is connected to the rear end of the waist support base.

[0011] As a preferred technical solution, the insert is provided with two sets of limiting posts, and a horizontal plate that abuts against the pad is sleeved on the two sets of limiting posts. A sleeve is screwed to the bottom of each set of limiting posts.

[0012] As a preferred technical solution, the front edge of the side substrate is set in an arc shape, and an arc transition surface is provided at the connection between the side substrate and the waist support substrate.

[0013] As a preferred technical solution, the flexible layer is provided with a zipper, which is used to expose the inflation port of the air bag when it is opened.

[0014] As a preferred technical solution, the supplementary base is connected to a push rod and at least one set of guide rods, the lumbar support base is provided with an adjusting sleeve screwed to the push rod, and the guide rods are movably inserted through the lumbar support base.

[0015] As a preferred technical solution, the outer wall of the adjusting sleeve is provided with a rotating protrusion.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] By supplementing the base, the suspended area that may appear between the driver's lower back and the lumbar support base due to differences in different drivers or changes in sitting posture is filled, thereby providing complete and seamless lumbar support;

[0018] The lateral support curved surface provides stable support and wrapping to the driver's torso from the side and rear, thereby reducing lateral swaying when driving the multi-purpose vehicle on bumpy roads and improving stability. The inflatable bag can control the expansion degree of multiple expansion strips. By inflating or deflating the inflatable bag, the expansion degree of multiple expansion strips can be controlled, thereby changing the protrusion height and hardness of the convex bag and realizing adjustable control of the lateral support force. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure;

[0020] Figure 2 This diagram illustrates the connection relationship between the lumbar support base and the support frame, as well as the connection relationship between the lumbar support base and the supplementary base.

[0021] Figure 3 This is a schematic diagram showing the positional relationship between the expansion strip and the convex bag;

[0022] In the diagram: 10. Bracket; 11. Pad; 12. Slot; 20. Waist support base; 21. Fitting curved surface; 22. Insert block; 23. Limiting post; 24. Horizontal plate; 25. Sleeve body; 30. Side base; 31. Flexible layer; 32. Protruding bag; 33. Inflatable bag; 34. Expansion strip; 35. Zipper; 40. Supplementary base; 41. Bottom support curved surface; 42. Push rod; 43. Guide rod; 44. Adjusting sleeve. Detailed Implementation

[0023] The following is a detailed description of a lumbar support for a multi-functional vehicle according to an embodiment of the present disclosure, with reference to the accompanying drawings. To make the objectives, technical solutions, and advantages of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present disclosure.

[0024] Therefore, the following detailed description of embodiments of the present disclosure provided in conjunction with the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without inventive effort are within the scope of protection of the present disclosure.

[0025] A lumbar support for a multi-functional vehicle:

[0026] See Figure 2 The bracket 10 is fixedly connected to the frame of the multi-purpose vehicle. The frame can be a seat frame or a vehicle body frame. The connection is achieved by welding, which serves as the load-bearing foundation for the entire lumbar support device.

[0027] See Figure 2 The lumbar support base 20 is located at the top of the bracket 10 and its height is adjustable. The bracket 10 is provided with a pad 11. The pad 11 has multiple sets of slots 12 vertically spaced. The rear end of the lumbar support base 20 is connected to two sets of inserts 22 for passing through the slots 12. The shape and size of the inserts 22 are precisely matched with the slots 12 on the bracket 10. The inserts 22 are provided with two sets of limiting posts 23. The two sets of limiting posts 23 are fitted with horizontal plates 24 that abut against the pad 11. Each set of limiting posts 23 is screwed with a sleeve 25 at the bottom.

[0028] When adjusting the height, first insert two sets of insert blocks 22 into two sets of slots 12 that are adjacent in height, then pass two sets of limiting posts 23 through the two sets of insert blocks 22 respectively, and then put a horizontal plate 24 on the two sets of limiting posts 23. The horizontal plate 24 has an inclined surface that abuts against the pad 11. Finally, tighten the sleeve 25 to form a fastener. A gasket is provided between the sleeve 25 and the horizontal plate 24.

[0029] See 1. Figure 3 The front end of the lumbar support base 20 is a contoured surface 21 with an upward convex and downward concave shape. The contoured surface 21 faces the driver's back. The upper convex part supports and maintains the normal physiological forward curvature of the driver's lumbar spine, while the lower concave part provides space for the upper edge of the buttocks.

[0030] See Figure 1 The supplementary base 40 is located in the recessed space of the lumbar support base 20. The supplementary base 40 has a bottom support curved surface 41 for filling the lumbar gap between the driver and the lumbar support base 20.

[0031] See Figure 2 The supplementary base 40 is laterally adjustable and is connected to a push rod 42 and multiple sets of guide rods 43. The lumbar support base 20 is provided with an adjusting sleeve 44 screwed to the push rod 42. The guide rods 43 are movably inserted into the lumbar support base 20. The outer wall of the adjusting sleeve 44 is provided with a rotating protrusion. Rotating the adjusting sleeve 44 will drive the push rod 42 to move linearly forward or backward due to the thread engagement with the push rod 42. The guide rods 43 slide in the smooth guide hole of the lumbar support base 20, ultimately driving the entire supplementary base 40 to achieve smooth and precise front and rear position adjustment. The supplementary base 40 fills the gap that may appear between the driver's lower back and the lumbar support base 20 due to differences in different drivers or changes in sitting posture, thereby providing complete and seamless lumbar support.

[0032] See Figure 1 The front edge of the side base 30 is designed in an arc shape to avoid sharp pressure on the back of the driver's arm or torso during use. An arc-shaped transition surface is provided at the connection between the side base 30 and the waist support base 20. The arc-shaped transition surface, the fitting surface 21 and the bottom support surface 41 are all covered with a flexible layer 31. The flexible layer 31 is filled with materials such as sponge and is made of highly elastic fabric.

[0033] See Figure 1 , Figure 3 Two sets of side bases 30 are symmetrically distributed on both sides of the waist support base 20. The side bases 30 have lateral support curved surfaces with an inclined orientation. The lateral support curved surfaces provide stable support and wrapping to the driver's torso from the rear side, thereby reducing the lateral swaying of the driver when driving the multi-functional vehicle on bumpy roads and improving stability.

[0034] See Figure 3 The lateral support curved surface is covered with a flexible layer 31, which has multiple sets of protruding pouches 32. An inflatable bag 33 is provided between the flexible layer 31 and the lateral support curved surface. The inflatable bag 33 is connected to multiple sets of expansion strips 34, which are respectively inserted into the multiple sets of protruding pouches 32. The inflatable bag 33 can be inflated to control the expansion degree of the multiple sets of expansion strips 34. By inflating or deflating the inflatable bag 33, the expansion degree of the multiple sets of expansion strips 34 can be controlled, thereby changing the protrusion height and hardness of the protruding pouches 32, and realizing the adjustable control of the lateral support force.

[0035] See Figure 3 The flexible layer 31 is provided with a zipper 35, which is used to expose the inflation port of the air bag 33 after being pulled open, so as to facilitate the connection of the air pump for inflation and deflation operations.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A lumbar support for a multi-functional vehicle, characterized in that, include: The bracket is fixedly connected to the frame of the multi-purpose vehicle; The waist support base is located at the top of the bracket and its height is adjustable. The front end of the waist support base is a convex-concave conforming curved surface. A supplementary base, located in the recessed space of the lumbar support base, is used to fill the lumbar gap between the driver and the lumbar support base; The side base has two sets, symmetrically distributed on both sides of the waist-supporting base. The side base has a lateral support curved surface with an inclined orientation. The lateral support curved surface is covered with a flexible layer. The flexible layer has multiple sets of convex pouches. An air bag is set between the flexible layer and the lateral support curved surface. The air bag is connected to multiple sets of expansion strips. The multiple sets of expansion strips are respectively inserted into the multiple sets of convex pouches. The air bag can be inflated to control the expansion degree of the multiple sets of expansion strips.

2. The lumbar support for a multi-functional vehicle according to claim 1, characterized in that, The bracket is provided with a pad, and the pad has multiple sets of slots spaced vertically at intervals. At least one set of inserts for passing through the slots is connected to the rear end of the waist support base.

3. The lumbar support for a multi-functional vehicle according to claim 2, characterized in that, The insert is provided with two sets of limiting posts, and a horizontal plate that abuts against the pad is sleeved on the two sets of limiting posts. A sleeve is screwed to the bottom of each set of limiting posts.

4. The lumbar support for a multi-functional vehicle according to claim 1, characterized in that, The front edge of the side base is arc-shaped, and an arc-shaped transition surface is provided at the connection between the side base and the waist support base.

5. The lumbar support for a multi-functional vehicle according to claim 1, characterized in that, The flexible layer is provided with a zipper, which is used to expose the inflation port of the air bag when it is opened.

6. The lumbar support for a multi-functional vehicle according to claim 1, characterized in that, The supplementary base is connected to a push rod and at least one set of guide rods. The lumbar support base is provided with an adjusting sleeve screwed to the push rod, and the guide rods are movably inserted through the lumbar support base.

7. A lumbar support for a multi-functional vehicle according to claim 6, characterized in that, The outer wall of the adjusting sleeve is provided with a rotating protrusion.

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