Ventilation waist rest

Abstract

The utility model discloses a ventilation waist rest which comprises a back plate, a movable sliding seat moving on the back plate, a ventilation assembly installed on the movable sliding seat, a guide mechanism guiding the movable sliding seat and a backup plate installed on the back plate, and the backup plate is elastically connected with the back plate. And a plurality of ventilation holes are formed in the backup plate. The ventilation assembly can move up and down, can be used by people with different heights, is suitable for being used by automobile seats, family seats or office seats, has a certain buffering effect when leaning against the ventilation assembly, and is more comfortable to use.

Description

Technical Field

[0001] This utility model relates to a lumbar support, specifically a ventilated lumbar support. Background Technology

[0002] Cars are becoming increasingly common in people's daily lives. For drivers who frequently drive, sitting in the driver's seat for long periods can lead to back pain. Therefore, car lumbar supports were invented. These supports perfectly conform to the human lower back, providing good support and effectively relieving lower back fatigue and strain from long drives. However, in the hot summer, because the car lumbar support cannot dissipate heat, the user's lower back will feel stuffy and uncomfortable. Therefore, to avoid the shortcomings of existing technology, it is necessary to improve it. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide a ventilated lumbar support with good breathability and comfortable use.

[0004] This utility model is achieved through the following technical solution: a ventilated lumbar support, including a back panel, a movable slide that moves on the back panel, a ventilation component installed on the movable slide, a guide mechanism for guiding the movable slide, and a backrest installed on the back panel. The backrest is elastically connected to the back panel, and the backrest has a plurality of ventilation holes.

[0005] Furthermore, the ventilation assembly includes a fan, and the fan's exhaust shroud is provided with a protective net.

[0006] Furthermore, the guiding mechanism includes a first guide groove and a second guide groove, and the left and right ends of the movable slide block respectively operate within the first guide groove and the second guide groove.

[0007] Furthermore, a first rack is provided in the second guide groove, and a second rack that meshes with the first rack is provided at the right end of the movable slide. The back of the first rack is elastically connected to the inner sidewall of the second guide groove.

[0008] Furthermore, a positioning post is provided on the inner sidewall of the second guide groove, a positioning hole is provided on the back of the first rack, the extended outer end of the positioning post is sleeved in the positioning hole, a first return spring is sleeved on the outer wall of the positioning post, and positioning blocks that limit the up and down position of the first rack are respectively provided at both ends of the first rack.

[0009] Furthermore, the back plate and the back plate are respectively provided with a first post hole and a second post hole on their opposite sides, a first screw is connected between the first post hole and the second post hole, a second return spring is sleeved on the first screw, and a countersunk hole is provided at the bottom of the first post hole on the back plate.

[0010] Furthermore, it also includes a drive mechanism for driving the movable slide to move. The drive mechanism includes a drive motor, a screw installed at the output end of the drive motor, and a nut screwed to the screw. The nut is installed on the movable slide. The back plate is provided with a first screw seat and a second screw seat. The two ends of the screw are respectively installed on the first screw seat and the second screw seat.

[0011] Furthermore, the guiding mechanism includes a guide rod and a guide assembly sleeved on the guide rod. The guide assembly is installed inside the movable slide. Both ends of the guide rod are respectively fixed to the back plate, and the movable slide is suspended on the guide rod.

[0012] Furthermore, the back of the back plate is provided with a third post hole, the back plate is provided with a connecting piece, the connecting piece is connected to the back plate by a second screw, and a spring piece is provided between the third post hole and the connecting piece.

[0013] Furthermore, the back panel is provided with a power cord retraction mechanism, which includes a guide rod and a telescopic cable sleeved on the guide rod.

[0014] Compared to existing technologies, this utility model allows the ventilation components to move up and down by installing a movable sliding seat on the back panel, thus meeting the usage requirements of people of different heights. The backrest is elastically connected to the back panel, providing a certain cushioning effect when the user's back is pressed against the backrest, making it more comfortable to use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the manually movable ventilated lumbar support of this utility model.

[0017] Figure 2 for Figure 1 A sectional view along the AA direction.

[0018] Figure 3 This is an exploded view of the manually movable ventilated lumbar support of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the electrically movable ventilated lumbar support of this utility model.

[0020] Figure 5for Figure 4 BB-direction sectional view.

[0021] Figure 6 This is an exploded view of the structure of the electrically movable ventilated lumbar support of this utility model.

[0022] In the diagram: 1-Backplate; 2-Moving slide; 3-Ventilation assembly; 4-Backplate; 5-Ventilation hole; 6-Fan; 7-Protective net; 8-First guide groove; 9-Second guide groove; 10-First rack; 11-Second rack; 12-Positioning pin; 13-Positioning hole; 14-First return spring; 15-Positioning block; 16-First post hole; 17-Second post hole; 18-First screw; 19-Second return spring; 20-Counterhead; 21-Drive motor; 22-Screw; 23-First screw seat; 24-Second screw seat; 25-Guide rod; 26-Third post hole; 27-Connecting piece; 28-Second screw; 29-Spring; 30-Guide rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 6 The present invention discloses a ventilated lumbar support, comprising a back panel 1, a movable slide 2 that moves on the back panel 1, a ventilation assembly 3 mounted on the movable slide 2, a guide mechanism for guiding the movable slide 2, and a backrest 4 mounted on the back panel 1. The backrest 4 is elastically connected to the back panel 1, and has several ventilation holes 5. When the ventilation assembly 3 is activated, the generated air is blown out through the ventilation holes of the backrest 4, providing cooling to the user when leaning against the backrest. The elastic connection between the backrest 4 and the back panel 1 provides cushioning when the user leans against the backrest 4, making it more comfortable to use.

[0025] The ventilation component 3 includes a fan 6, and the fan 6 exhaust mask is equipped with a protective net 7 to prevent hands from being put into the fan 6, thereby improving safety during use.

[0026] In the first embodiment, the movable slide 2 can be manually adjusted up and down. The guiding mechanism includes a first guide groove 8 and a second guide groove 9. The left and right ends of the movable slide 2 run within the first guide groove 8 and the second guide groove 9, respectively. A first rack 10 is provided in the second guide groove 9. A second rack 11 that meshes with the first rack 10 is provided at the right end of the movable slide 2. The back of the first rack 10 is elastically connected to the inner wall of the second guide groove 9. A positioning post 12 is provided on the inner wall of the second guide groove 9. A positioning hole 13 is opened on the back of the first rack 10. The extended outer end of the positioning post 12 is sleeved in the positioning hole 13. A first return spring 14 is sleeved on the outer wall of the positioning post 12. Positioning blocks 15 that limit the up and down position of the first rack 10 are provided at both ends of the first rack 10. The back plate 1 and the back plate 4 have a first post hole 16 and a second post hole 17 on their opposite sides, respectively. A first screw 18 is connected between the first post hole 16 and the second post hole 17. A second return spring 19 is sleeved on the first screw 18. A countersunk hole 20 is provided at the bottom of the first post hole 16 on the back plate 1. When the back plate 4 is subjected to force and sinks, the first screw 18 automatically moves down into the countersunk hole 20. Conversely, when the back plate 4 is not in use, the back plate 4 and the first screw 18 automatically return to their original positions under the action of the second return spring 19. In use, the first rack 10 is pulled, and the second rack 11 on the movable slide 2 disengages from the first rack 10 and can move up and down within the first guide groove 8 and the second guide groove 9. When it moves to the appropriate position, the first rack 10 is released, and the first rack 10 automatically returns to its original position under the action of the first return spring 14. The first rack 10 and the second rack 11 engage with each other, limiting the position of the movable slide 2, thereby realizing the movement of the ventilation assembly 3 and limiting the position of the ventilation assembly 3.

[0027] In a second embodiment, the movable slide 2 is electrically adjustable up and down, and also includes a drive mechanism for moving the movable slide 2. The drive mechanism includes a drive motor 21, a screw 22 mounted on the output end of the drive motor 21, and a nut screwed to the screw 22. The nut is mounted on the movable slide 2. A first screw seat 23 and a second screw seat 24 are provided on the back plate 1, and the two ends of the screw 22 are respectively mounted on the first screw seat 23 and the second screw seat 24. The guiding mechanism includes a guide rod 25 and a guide assembly sleeved on the guide rod 25. The guide assembly is installed inside the movable slide 2, and the two ends of the guide rod 25 are respectively fixed to the back plate 1. The movable slide 2 is suspended on the guide rod 25. The back of the support plate 4 has a third post hole 26, and the back plate 1 has a connecting piece 27. The connecting piece 27 is connected to the support plate 4 by a second screw 28. A spring piece 29 is provided between the third post hole 26 and the connecting piece 27. When the support plate 4 is subjected to force and sinks, the spring piece 29 is compressed. Conversely, when the support plate 4 is not in use, the support plate 4 automatically returns to its original position under the action of the spring piece 29. In use, the drive motor 21 drives the screw 22 to rotate, and the moving slide 2 moves at the same time, realizing the up and down movement of the ventilation assembly 3.

[0028] The back panel 1 is provided with a power cord retraction mechanism, which includes a guide rod 30 and a telescopic cable sleeved on the guide rod 30.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ventilated lumbar support, characterized in that: It includes a back plate, a movable slide that moves on the back plate, a ventilation component mounted on the movable slide, a guide mechanism for guiding the movable slide, and a back plate mounted on the back plate. The back plate is elastically connected to the back plate, and the back plate has several ventilation holes.

2. The ventilated lumbar support according to claim 1, characterized in that: The ventilation assembly includes a fan, and the fan's exhaust shroud has a protective mesh.

3. The ventilated lumbar support according to claim 1, characterized in that: The guiding mechanism includes a first guide groove and a second guide groove, and the left and right ends of the movable slide block respectively run in the first guide groove and the second guide groove.

4. The ventilated lumbar support according to claim 3, characterized in that: The second guide groove is provided with a first rack, and the right end of the movable slide is provided with a second rack that meshes with the first rack. The back of the first rack is elastically connected to the inner sidewall of the second guide groove.

5. The ventilated lumbar support according to claim 4, characterized in that: The inner sidewall of the second guide groove is provided with a positioning post, the back of the first rack is provided with a positioning hole, the extended outer end of the positioning post is sleeved in the positioning hole, the outer wall of the positioning post is provided with a first return spring, and the two ends of the first rack are respectively provided with positioning blocks that limit the up and down position of the first rack.

6. The ventilated lumbar support according to claim 1, characterized in that: The back plate and the back plate are respectively provided with a first post hole and a second post hole on their opposite sides. A first screw is connected between the first post hole and the second post hole. A second return spring is provided on the outer sleeve of the first screw. A countersunk hole is provided at the bottom of the first post hole on the back plate.

7. The ventilated lumbar support according to claim 1, characterized in that: It also includes a drive mechanism for driving the movable slide to move. The drive mechanism includes a drive motor, a screw installed at the output end of the drive motor, and a nut screwed to the screw. The nut is installed on the movable slide. The back plate is provided with a first screw seat and a second screw seat. The two ends of the screw are respectively installed on the first screw seat and the second screw seat.

8. The ventilated lumbar support according to claim 7, characterized in that: The guiding mechanism includes a guide rod and a guide assembly sleeved on the guide rod. The guide assembly is installed inside the movable slide. Both ends of the guide rod are fixed to the back plate, and the movable slide is suspended on the guide rod.

9. The ventilated lumbar support according to claim 1, characterized in that: The back of the back plate is provided with a third post hole, and the back plate is provided with a connecting piece. The connecting piece is connected to the back plate by a second screw, and a spring piece is provided between the third post hole and the connecting piece.

10. The ventilated lumbar support according to claim 1, characterized in that: The back panel is provided with a power cord retraction mechanism, which includes a guide rod and a telescopic cable sleeved on the guide rod.

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