Adjustable waist support
By using adjustment mechanisms of plucks, screws and nuts in the waist support, the existing problem of inconvenience of adjustment of the waist back and forth is solved, and a more convenient and fast adjustment of the waist support position and force is achieved.
Patent Information
- Application Number
- CN202421323218.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-11
AI Technical Summary
When the existing waist rest is adjusted front and back, it is inconvenient to operate. Especially the knob-style waist rest is inconvenient due to the inconvenient position of the knob, which leads to limited movement space in the hand, making it difficult to quickly find the knob, which in turn affects the convenience of adjustment.
An adjustable waist support is designed, and an adjustment mechanism consisting of a pluck, screw, nut and mounting column. The pluck is installed on the support frame. By rotating the pluck, the screw and the nut are driven to cooperate, so as to achieve front and rear adjustment of the lumbar support.
By setting the tray on the support frame, users can find the tray position more easily. When sitting on the seat, they can easily adjust the front and rear support position and strength of the waist rest, making adjustments faster and more convenient.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of ergonomic chairs, and more particularly to an adjustable lumbar support. Background Art
[0002] With the increasing development of the economy and society, people's pace of life is getting faster and faster, and social pressures such as life, work, and transportation have increased significantly. Health problems of the lumbar and cervical spine are becoming more and more common in people's lives. Pregnant women, the elderly, students, long-term drivers, long-term sedentary employees, etc., because of long sitting time every day, the waist muscles cannot be relaxed and are constantly in a state of tension. The ligaments around the spine are under long-term tension, which can easily lead to tissue damage, spinal strain or damage.
[0003] In order to relieve pain in the lumbar and cervical spine and provide adequate support and protection for the lumbar spine, people have developed protective and therapeutic seat backs, lumbar supports and lumbar cushions. Among them, lumbar supports can effectively relieve fatigue in the waist, maintain the normal physiological curvature of the lumbar spine, prevent the waist from being suspended, play a supporting role, and avoid strain, fatigue and excessive tension in the waist.
[0004] The lumbar support recorded in the relevant technology can usually be adjusted up and down, and some can be adjusted forward and backward. There are two main ways to adjust the forward and backward: the paddle type and the knob type. The paddle type adjustment only has two positions: the initial position and the final position, which cannot meet the needs of users. The knob type can achieve the purpose of gradual adjustment, but the knob is located between the seat back and the lumbar support; when a person sits on the chair, the hand movement space is limited, and it is not convenient to quickly find the knob, which makes the operation very inconvenient. Utility Model Content
[0005] In order to improve the convenience of adjusting the lumbar support forward and backward, the present application provides an adjustable lumbar support.
[0006] The adjustable lumbar support provided in this application adopts the following technical solution:
[0007] An adjustable lumbar support, comprising a support frame, a back frame, a lumbar support and an adjustment mechanism, wherein both ends of the support frame are respectively connected to the back frame, and the support frame is arranged horizontally, and the adjustment mechanism is arranged between the support frame and the lumbar support, and is used to adjust the front and rear support position and strength of the lumbar support;
[0008] The adjustment mechanism includes a dial wheel, a screw, a nut and a mounting post. The dial wheel is mounted on the support frame and can rotate. One end of the screw is fixedly connected to the dial wheel. The mounting post is arranged on the lumbar support bracket and is located on a side close to the support frame. The nut is arranged in the mounting post. One end of the screw away from the dial wheel cooperates with the nut. When the dial wheel is turned, the lumbar support bracket can move closer to or away from the support frame.
[0009] By adopting the above technical solution, when the dial wheel is turned, the screw and the nut cooperate to drive the lumbar support bracket to move closer to or away from the support frame, thereby adjusting the front and rear position of the lumbar support. Since the dial wheel is set on the support frame, the support frame can be used as a target object during adjustment, and the position of the dial wheel can be easily found. The user can easily adjust the front and rear support position and strength of the lumbar support while sitting on the seat, and the adjustment is convenient and quick.
[0010] Optionally, a fixing plate is also included, wherein the fixing plate is used to fix the thumbwheel, and the fixing plate is mounted on the supporting frame.
[0011] By adopting the above technical solution, the thumbwheel can be easily fixed using a fixing plate.
[0012] Optionally, a circumferential side wall is formed on the thumb wheel, a center hole for the circumferential side wall to pass through is opened on the fixed plate, a first guide portion is arranged on the fixed plate, a second guide portion is also arranged on the lumbar support bracket, and a gap is provided between the mounting column and the second guide portion for the circumferential side wall to be embedded, and the first guide portion and the second guide portion cooperate to achieve guidance.
[0013] By adopting the above technical solution, the first guide part and the second guide part cooperate in guiding to prevent shaking during adjustment.
[0014] Optionally, a movable groove is formed on the second guide portion, and a hook is formed on the fixed plate, and the hook is located in the movable groove.
[0015] By adopting the above technical solution, when the lumbar support bracket is adjusted to the farthest position, the hook hooks the movable groove to prevent further forward movement and cause the screw rod and the nut to disengage.
[0016] Optionally, it also includes an up and down adjustment mechanism, which is arranged on the back frame and is used to adjust the up and down position of the lumbar support.
[0017] By adopting the above technical solution and utilizing the up and down adjustment mechanism, the up and down position of the lumbar support bracket can be adjusted.
[0018] Optionally, the up and down adjustment mechanism includes a sliding protrusion and a pressing plate. A slot is provided on the back frame. Two sliding protrusions are provided and are respectively located at both ends of the support frame. The sliding protrusion slides in the slot. The pressing plate is provided on the back frame to fix the support frame.
[0019] By adopting the above technical solution, during adjustment, the user manually grasps the support frame and moves it along the card slot, and stops when it is in place, and the pressing sheet keeps the support frame in place.
[0020] Optionally, the thumbwheel is hidden in the support frame, and a through hole is provided at the bottom of the support frame to allow the thumbwheel to be partially exposed.
[0021] By adopting the above technical solution, the thumbwheel is hidden in the support frame, which, on the one hand, improves the overall aesthetics, and on the other hand, can play a protective role and increase the service life of the thumbwheel.
[0022] Optionally, a plurality of grooves are formed on the side surface of the thumbwheel, and the grooves are circumferentially spaced apart.
[0023] By adopting the above technical solution, the groove makes the surface of the dial wheel uneven, which is convenient for dialing.
[0024] Optionally, a plurality of weight-reducing holes are provided on the fixing plate.
[0025] By adopting the above technical solution and utilizing the weight-reducing holes, the overall mass of the fixing plate can be reduced.
[0026] Optionally, a sponge lumbar support is further included, wherein the sponge lumbar support is arranged on a side of the lumbar support bracket away from the support frame.
[0027] By adopting the above technical solution, the sponge lumbar support can bring a wrapping feeling and improve comfort.
[0028] In summary, the present application includes at least one of the following beneficial technical effects:
[0029] 1. The present application provides an adjustable lumbar support, which includes a support frame, a lumbar support, an adjustment mechanism arranged between the support frame and the lumbar support, and a sponge lumbar support arranged on the front surface of the lumbar support, the adjustment mechanism includes a dial wheel, a screw rod, a nut, and a mounting column, the dial wheel is installed on the support frame, one end of the screw rod is fixedly connected to the dial wheel, the mounting column is arranged on the lumbar support, the nut is arranged in the mounting column, and the threaded rod and the nut cooperate. When the dial wheel is turned, the lumbar support can be driven closer to or away from the support frame. By setting the support frame and the adjustment mechanism, the dial wheel is set on the support frame, and the user can conveniently adjust the front and rear support position and strength of the lumbar support while sitting on the seat, and the adjustment is convenient and quick;
[0030] 2. The present application also includes an up and down adjustment structure, which includes a card slot set on the back frame, and sliding protrusions are provided at both ends of the support frame. The sliding protrusions can move along the card slot, and the position of the support frame is fixed by pressing two pressing pieces on the two ends of the support frame. The pressing pieces are elastic. When adjusting, the user manually grasps the support frame and moves it along the card slot, and stops when it is in place. The pressing piece keeps the support frame in place;
[0031] 3. In the present application, the dial is hidden in the support frame, which, on the one hand, improves the overall aesthetics, and on the other hand, can play a protective role and increase the service life of the dial. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 is a schematic diagram of the structure of the adjustable lumbar support in the present application;
[0033] Figure 2 It is an exploded view of the lumbar support bracket, adjustment mechanism, and support frame of the present application when installed;
[0034] Figure 3 It is a schematic diagram of the structure of the lumbar support in the present application;
[0035] Figure 4 It is a schematic diagram of the installation of the lumbar support, adjustment mechanism, and support frame in this application;
[0036] Figure 5 is an exploded view of the adjustment mechanism in this application;
[0037] Figure 6 It is a schematic diagram of the structure of the adjustable lumbar support in the present application after one of the pressing sheets is hidden;
[0038] Figure 7 yes Figure 6 Enlarged view of point A in the middle.
[0039] Explanation of the reference numerals in the accompanying drawings: 1. Support frame; 2. Back frame; 3. Lumbar support bracket; 4. Adjustment mechanism; 41. Dial wheel; 42. Screw; 43. Mounting column; 44. Fixing plate; 45. Nut; 5. Lightening hole; 6. Circumferential side wall; 7. First guide portion; 8. Center hole; 9. Second guide portion; 10. Hook; 11. Movable slot; 12. Groove; 13. Up and down adjustment mechanism; 131. Sliding protrusion; 132. Pressing sheet; 133. Slot; 14. Sponge lumbar support. DETAILED DESCRIPTION
[0040] The following is combined with Figure 1-7 This application is described in further detail.
[0041] The present application embodiment discloses an adjustable lumbar support, referring to Figure 1 and Figure 2The adjustable lumbar support includes a support frame 1, a back frame 2, a lumbar support bracket 3 and an adjustment mechanism 4. The two ends of the support frame 1 are respectively connected to the back frame 2, and the support frame 1 is horizontally arranged. The adjustment mechanism 4 is arranged between the support frame 1 and the lumbar support bracket 3, and is used to adjust the front and rear supporting position and strength of the lumbar support bracket 3.
[0042] When in use, the user sits on the seat, first determines the position of the support frame 1, and then can quickly find the position of the adjustment mechanism 4. In this way, the user can conveniently adjust the front and rear support position and strength of the lumbar support when sitting on the seat, and the adjustment is convenient and quick.
[0043] Specifically, refer to Figure 2 and Figure 3 The adjustment mechanism 4 includes a dial wheel 41, a screw rod 42, a nut 45 and a mounting post 43. The dial wheel 41 is mounted on the support frame 1 and can rotate. One end of the screw rod 42 is fixedly connected to the dial wheel 41. The mounting post 43 is arranged on the lumbar support bracket 3 and is located on a side close to the support frame 1. The nut 45 is arranged in the mounting post 43. One end of the screw rod 42 away from the dial wheel 41 cooperates with the nut 45. When in use, when the dial wheel 41 is turned, the lumbar support bracket 3 can be moved closer to or away from the support frame 1 by the cooperation of the screw rod 42 and the nut 45.
[0044] In this embodiment, refer to Figure 2 and Figure 4 The adjustment mechanism 4 further includes a fixing plate 44, which is mounted on the support frame 1 and is used to fix the dial wheel 41. The fixing plate 44 can facilitate the fixing and installation of the dial wheel 41 while ensuring the rotation of the dial wheel 41. The fixing plate 44 can be fixed by screws, self-tapping screws, etc.
[0045] Reference Figure 5 A plurality of weight-reducing holes 5 are provided on the fixing plate 44. By utilizing the weight-reducing holes 5, the overall mass of the fixing plate 44 can be reduced, thus saving the use of materials.
[0046] Further, refer to Figure 4 and Figure 5 A circumferential side wall 6 is formed on the dial wheel 41, the screw 42 is located in the space surrounded by the circumferential side wall 6, a central hole 8 for the circumferential side wall 6 to pass through is opened on the fixing plate 44, a first guide portion 7 is provided on the fixing plate 44, and a second guide portion 9 is also provided on the lumbar support bracket 3. There is a gap between the mounting column 43 and the second guide portion 9 for the circumferential side wall 6 to be embedded. During the adjustment process, the first guide portion 7 and the second guide portion 9 cooperate to achieve guidance, ensure the lumbar support bracket 3 to move linearly, and prevent shaking during adjustment.
[0047] Reference Figure 3 and Figure 5The second guide portion 9 is provided with a movable groove 11, and the fixing plate 44 is formed with a hook 10, which is located in the movable groove 11. When the lumbar support bracket 3 is adjusted to the farthest position, the hook 10 hooks the movable groove 11 to prevent the screw rod 42 from being separated from the nut 45 due to further forward movement.
[0048] In this embodiment, refer to Figure 4 The dial wheel 41 is hidden in the support frame 1, and a through hole is provided at the bottom of the support frame 1 to partially expose the dial wheel 41. In this way, the dial wheel 41 forms a hidden structure, which, on the one hand, improves the overall aesthetics, and on the other hand, can play a protective role, increase the durability of the dial wheel 41, and improve the service life of the dial wheel 41.
[0049] Reference Figure 5 In order to facilitate the user to turn the dial wheel 41, preferably, the dial wheel 41 needs to be anti-slip. In this embodiment, a plurality of grooves 12 are formed on the side of the dial wheel 41, and each groove 12 is distributed circumferentially at intervals. The grooves 12 make the surface of the dial wheel 41 uneven, which is convenient for turning. Of course, other anti-slip measures can also be adopted, such as: processing anti-slip patterns, setting anti-slip sleeves, spraying anti-slip coatings, etc.
[0050] Of course, refer to Figure 6 and Figure 7 In order to improve practicality, in this embodiment, an up-and-down adjustment mechanism 13 is further provided. The up-and-down adjustment mechanism 13 is provided on the back frame 2 and is used to adjust the up-and-down position of the lumbar support bracket 3 .
[0051] Specifically, the up-down adjustment mechanism 13 includes a sliding protrusion 131 and a pressing piece 132. A slot 133 is provided on the back frame 2. Two sliding protrusions 131 are provided and are respectively located at the two ends of the support frame 1. The sliding protrusion 131 slides in the slot 133. The pressing piece 132 is provided at the two ends of the back frame 2 to fix the support frame 1. The pressing piece 132 is made of elastic material. When adjusting, the user manually grasps the support frame 1 and moves along the slot 133, stops when in place, and the pressing piece 132 keeps the support frame 1 in place.
[0052] Of course, refer to Figure 1 and Figure 2 In this embodiment, a sponge waist support 14 is also provided, and the sponge waist support 14 is provided on the side of the waist support bracket 3 away from the support frame 1. When a person sits on the seat, the sponge waist support 14 can bring a wrapping feeling and is softer, thereby improving comfort. In this embodiment, a shaped sponge is used, and no nails or glue are used, which is environmentally friendly and safe.
[0053] The implementation principle of an adjustable lumbar support in the embodiment of the present application is as follows: when adjusting forward and backward, when the dial wheel 41 is turned, the screw rod 42 and the nut 45 cooperate to drive the lumbar support bracket 3 to move closer to or away from the support frame 1, thereby adjusting the front and rear position of the lumbar support. When adjusting up and down, the user manually grasps the support frame 1 and moves along the card slot 133, stops when in place, and the pressing piece 132 keeps the support frame 1 in place. The user can conveniently adjust the front and rear support position and strength of the lumbar support while sitting on the seat, and the adjustment is convenient and quick.
[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An adjustable lumbar support, characterized in that: The invention comprises a support frame (1), a back frame (2), a lumbar support bracket (3) and an adjustment mechanism (4); the two ends of the support frame (1) are respectively connected to the back frame (2), and the support frame (1) is arranged horizontally; the adjustment mechanism (4) is arranged between the support frame (1) and the lumbar support bracket (3) and is used to adjust the front and rear support position and strength of the lumbar support bracket (3); The adjustment mechanism (4) comprises a dial (41), a screw (42), a nut (45) and a mounting post (43); the dial (41) is mounted on the support frame (1) and is rotatable; one end of the screw (42) is fixedly connected to the dial (41); the mounting post (43) is arranged on the lumbar support bracket (3) and is located on a side close to the support frame (1); the nut (45) is arranged in the mounting post (43); one end of the screw (42) away from the dial (41) cooperates with the nut (45); when the dial (41) is turned, the lumbar support bracket (3) can be moved closer to or away from the support frame (1).
2. The adjustable lumbar support according to claim 1, characterized in that: It also comprises a fixing plate (44), wherein the fixing plate (44) is used to fix the thumbwheel (41), and the fixing plate (44) is mounted on the supporting frame (1).
3. The adjustable lumbar support according to claim 2, characterized in that: A circumferential side wall (6) is formed on the thumbwheel (41), a center hole (8) is opened on the fixing plate (44) for the circumferential side wall (6) to pass through, a first guide portion (7) is arranged on the fixing plate (44), and a second guide portion (9) is also arranged on the lumbar support bracket (3), a gap is provided between the mounting column (43) and the second guide portion (9) for the circumferential side wall (6) to be embedded, and the first guide portion (7) and the second guide portion (9) cooperate to achieve guidance.
4. The adjustable lumbar support according to claim 3, characterized in that: The second guide portion (9) is provided with a movable groove (11), the fixed plate (44) is formed with a hook (10), and the hook (10) is located in the movable groove (11).
5. The adjustable lumbar support according to claim 1, characterized in that: It also comprises an up and down adjustment mechanism (13), which is arranged on the back frame (2) and is used to adjust the up and down position of the waist support bracket (3).
6. The adjustable lumbar support according to claim 5, characterized in that: The up-and-down adjustment mechanism (13) comprises a sliding protrusion (131) and a pressing plate (132); a slot (133) is provided on the back frame (2); two sliding protrusions (131) are provided and are respectively located at two ends of the support frame (1); the sliding protrusion (131) slides in the slot (133); the pressing plate (132) is provided on the back frame (2) and is used to fix the support frame (1).
7. The adjustable lumbar support according to claim 1, characterized in that: The thumbwheel (41) is hidden in the support frame (1), and a through hole is provided at the bottom of the support frame (1) to allow the thumbwheel (41) to be partially exposed.
8. The adjustable lumbar support according to claim 7, characterized in that: A plurality of grooves (12) are formed on the side surface of the thumbwheel (41), and the grooves (12) are distributed at intervals in the circumferential direction.
9. The adjustable lumbar support according to claim 2, characterized in that: The fixing plate (44) is provided with a plurality of weight-reducing holes (5).
10. The adjustable lumbar support according to claim 1, characterized in that: It also comprises a sponge waist support (14), wherein the sponge waist support (14) is arranged on a side of the waist support bracket (3) away from the support frame (1).