Elastic waist rest

Abstract

The utility model discloses an elastic waist rest, which relates to the technical field of waist rests and comprises a back cushion and a waist pillow, a first connecting component is arranged on the back cushion, a second connecting component is arranged on the waist pillow, and an elastic component is arranged between the first connecting component and the second connecting component. One end of the elastic assembly is in telescopic fit with the first connecting assembly, and the other end of the elastic assembly is rotationally connected with the second connecting assembly, so that the waist pillow can swing up and down relative to the back cushion; by arranging the first connecting assembly, the second connecting assembly and the elastic assembly between the first connecting assembly and the second connecting assembly, telescopic adjustment and up-and-down swinging of the waist pillow relative to the back cushion are achieved, the waist pillow better fits the waist curve of a user, and different sitting postures and body actions are adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of waist supports, in particular to an elastic waist support. Background Art

[0002] In modern life, people sit for a long time, whether they are working, studying or relaxing. However, long-term bad sitting posture can easily lead to waist fatigue, pain and even injury. Ergonomic research shows that in order to maintain waist health and comfort, proper support is needed to maintain the natural curve of the lumbar spine.

[0003] Lumbar support, as a daily necessity, has been widely used, especially in car seats, office chairs, sofas, etc. When we sit down to rest or work, the waist is under pressure for a long time due to maintaining a sitting posture for a long time. The lumbar support can support the waist and relieve waist fatigue.

[0004] However, traditional lumbar supports are usually of fixed shape and size, and cannot be flexibly adjusted according to different people's body shapes and sitting habits. This results in some users being unable to obtain ideal lumbar support effects, and may even aggravate lumbar discomfort due to inappropriate support.

[0005] For example, some people with a smaller build may feel that the lumbar support of a universal size is too large and cannot fit their waist curve; while people with a larger build may feel that the lumbar support is too small and lacks support.

[0006] Therefore, it is necessary to propose an improved technical solution to solve the above problems. Utility Model Content

[0007] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0008] An elastic lumbar support comprises a back cushion and a lumbar pillow, wherein the back cushion is provided with a first connecting component, and the lumbar pillow is provided with a second connecting component, and an elastic component is arranged between the first connecting component and the second connecting component relative to each other, one end of the elastic component is telescopically matched with the first connecting component, and the other end of the elastic component is rotatably connected with the second connecting component, so that the lumbar pillow can swing up and down relative to the back cushion.

[0009] As a further solution of the utility model: the cushion is provided with an assembly position matched with the first connecting component, the first connecting component includes a first mounting member located on one side of the assembly position, and a second mounting member located on the other side of the assembly position, the first mounting member and the second mounting member are interlocked;

[0010] Wherein, an assembly groove is formed between the first mounting member and the second mounting member, and one end of the elastic member can be telescopically embedded in the assembly groove.

[0011] As a further solution of the utility model: the cushion is provided with a through hole at the assembly position, and the opposite ends of the first mounting member and the second mounting member are respectively passed through the through holes to enclose and form the assembly groove;

[0012] The first connecting component also includes a third connecting member, which is fixed on the assembly position and is located on the same side as the first mounting member, and one end of the third connecting member extends into the assembly groove to form an abutting end acting on the elastic component.

[0013] As a further solution of the utility model: the elastic component includes a telescopic spring and a slider, the slider is slidably matched with the assembly groove, wherein one end of the slider is placed in the assembly groove and is provided with an inner groove corresponding to the telescopic spring, and the other end of the slider extends out of the assembly groove and is rotatably connected to the second connecting component;

[0014] One end of the telescopic spring is sleeved on the abutting end, and the other end of the telescopic spring abuts in the inner groove of the sliding block.

[0015] As a further solution of the utility model: protrusions are arranged on both sides of one end of the slider facing the inner groove notch, and a long hole corresponding to the protrusion is opened on the second mounting member, and the protrusion is slidably matched with the long hole, wherein the end of the long hole close to the abutting end has an opening, and the end of the long hole away from the opening forms an inner bottom limited to the protrusion.

[0016] As a further solution of the utility model: a female column is arranged at one end of the first mounting member facing the second mounting member, and a stud is arranged at one end of the second mounting member facing the first mounting member, and the stud is sleeved and matched with the female column.

[0017] As a further solution of the utility model: a rotating shaft structure is horizontally arranged on the sliding block, and the second connecting component is provided with a rotating shaft groove corresponding to the rotating shaft structure, wherein clamping blocks are arranged on both sides of the rotating shaft structure, and a rotating shaft hole matching the clamping block is provided in the rotating shaft groove.

[0018] As a further solution of the utility model: the outer side of the clamping block has an inclined surface, and reinforcing ribs are arranged on the inclined surface.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] By providing a first connecting component and a second connecting component and an elastic component therebetween, the lumbar pillow can be telescopically adjusted and swung up and down relative to the back cushion. Specifically, the telescopic cooperation of one end of the elastic component with the first connecting component enables the lumbar pillow to be adaptively telescopically adjusted according to the pressure and movement of the user to provide appropriate support strength; the rotational connection of the other end with the second connecting component allows the lumbar pillow to flexibly swing up and down within a certain range to better fit the user's waist curve and adapt to different sitting postures and body movements.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 4 It is a schematic diagram of the explosion structure of the utility model from one viewing angle;

[0027] Figure 5 It is a schematic diagram of the explosion structure of the utility model from another perspective;

[0028] Figure 6 It is a schematic diagram of the structure of the first connecting component, the second connecting component and the elastic component of the utility model;

[0029] Figure 7 It is a structural schematic diagram of the slider of the utility model;

[0030] Figure 8 It is a structural schematic diagram of the second mounting member of the utility model;

[0031] Fig. 9 It is a structural schematic diagram of the cooperation between the second connecting component and the lumbar pillow of the utility model.

[0032] The reference numerals and names in the figures are as follows:

[0033] 1. Cushion; 2. Lumbar pillow; 3. First connecting component; 4. Second connecting component; 5. Elastic component; 6. Assembly position; 7. First mounting member; 8. Second mounting member; 9. Assembly groove; 10. Through hole; 11. Third connecting member; 12. Abutment end; 13. Telescopic spring; 14. Slider; 15. Inner groove; 16. Protrusion; 17. Long hole; 18. Opening; 19. Inner bottom; 20. Mother column; 21. Stud; 22. Rotating shaft structure; 23. Rotating shaft groove; 24. Block; 25. Rotating shaft hole; 26. Inclined surface; 27. Reinforcing rib. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1-9 In an embodiment of the utility model, an elastic lumbar support includes a back cushion 1 and a lumbar pillow 2, the back cushion 1 is provided with a first connecting component 3, the lumbar pillow 2 is provided with a second connecting component 4, an elastic component 5 is provided between the first connecting component 3 and the second connecting component 4, one end of the elastic component 5 is telescopically matched with the first connecting component 3, and the other end of the elastic component 5 is rotatably connected with the second connecting component 4, so that the lumbar pillow 2 can swing up and down relative to the back cushion 1.

[0036] In the technical solution of the utility model, by setting a first connecting component 3 and a second connecting component 4, and an elastic component 5 therebetween, the telescopic adjustment and up and down swinging of the lumbar pillow 2 relative to the back cushion 1 are realized. Specifically, the telescopic cooperation of one end of the elastic component 5 with the first connecting component 3 enables the lumbar pillow 2 to be adaptively telescopically adjusted according to the pressure and movement of the user to provide appropriate support strength; the rotational connection of the other end with the second connecting component 4 allows the lumbar pillow 2 to flexibly swing up and down within a certain range, better fit the user's waist curve, and adapt to different sitting postures and body movements.

[0037] When a user sits on a chair equipped with such an elastic lumbar support, his or her waist contacts the lumbar pillow 2. During this process, the user's pressure and movements will have a direct impact on the lumbar pillow 2. First, considering the pressure, if the user is heavy or maintains a leaning sitting posture for a long time, the pressure applied to the lumbar pillow 2 will be greater. At this time, the elastic component 5 will make corresponding expansion and contraction adjustments according to this greater pressure. For example, the elastic component 5 may be compressed, causing the lumbar pillow 2 to retract to a certain extent into the back cushion 1, thereby providing stronger support to adapt to the greater pressure and maintain the comfort and stability of the waist.

[0038] Secondly, from the perspective of movement, when the user frequently changes posture while sitting, such as leaning forward, leaning back, or turning left or right, the lumbar pillow 2 will quickly sense the changes in force brought about by these movements. For example, when the body leans forward, the pressure on the lumbar pillow 2 decreases, and the elastic component 5 will stretch to reduce the degree to which the lumbar pillow 2 protrudes forward; when leaning back, the pressure increases, the elastic component 5 contracts, and the lumbar pillow 2 retracts into the back cushion 1 to fit the new position and posture of the waist.

[0039] This adaptive telescopic adjustment can ensure that the lumbar pillow 2 always fits the user's waist tightly, and can provide just the right support no matter how the user's sitting posture changes or the weight varies. For example, a person who works for a long time may unconsciously change his sitting posture to relieve fatigue at work, and this elastic lumbar support can automatically adjust every time he changes his posture, always providing effective support for his waist. For another example, when a heavier person uses the lumbar support, the lumbar pillow 2 will expand and contract according to the greater pressure applied by the person, so as to provide sufficient and comfortable support and avoid excessive stress on the waist.

[0040] Furthermore, the up and down swinging function increases the flexibility and comfort of the lumbar support, allowing the user to maintain a good experience when sitting for a long time. For example, for taller people, the lumbar pillow 2 can swing upward more to provide support for the upper waist; and for shorter people, the lumbar pillow 2 can swing downward to a greater extent to fit their waist curve.

[0041] In the embodiment of the utility model, the cushion 1 is provided with an assembly position 6 matched with the first connecting component 3, and the first connecting component 3 includes a first mounting member 7 located on one side of the assembly position 6, and a second mounting member 8 located on the other side of the assembly position 6, and the first mounting member 7 and the second mounting member 8 are interlocked;

[0042] A mounting groove 9 is formed between the first mounting member 7 and the second mounting member 8 , and one end of the elastic member can be telescopically embedded in the mounting groove 9 .

[0043] The assembly position 6 set on the cushion 1 provides a fixing and installation position for the first connecting component 3. The first connecting component 3 is composed of a first mounting member 7 and a second mounting member 8 located on both sides of the assembly position 6 and interlocked. The assembly groove 9 formed by the two provides a telescopic fitting space for one end of the elastic component 5. This design enables the elastic component 5 to stably perform telescopic movement in the assembly groove 9. When the user's waist applies pressure to the lumbar pillow 2 or generates movement, the expansion and contraction of the elastic component 5 in the assembly groove 9 is constrained and guided by the first mounting member 7 and the second mounting member 8, thereby ensuring the direction and stability of the expansion and contraction.

[0044] In the embodiment of the utility model, the cushion 1 is provided with a through hole 10 at the assembly position 6, and the opposite ends of the first mounting member 7 and the second mounting member 8 are respectively penetrated through the through hole 10 to enclose and form the assembly groove 9;

[0045] The first connecting component 3 also includes a third connecting member 11 , which is fixed on the assembly position 6 and is on the same side as the first mounting member 7 , and one end of the third connecting member 11 extends into the assembly groove 9 to form an abutting end 12 acting on the elastic component 5 .

[0046] The through hole 10 opened on the assembly position 6 of the cushion 1 provides a passage for the first mounting member 7 and the second mounting member 8 to pass through, so that they can pass through the through hole 10 relative to each other and enclose to form an assembly groove 9. The third connecting member 11 is fixed on the assembly position 6 and on the same side as the first mounting member 7, and one end thereof extends into the assembly groove 9 to form an abutment end 12; when the user applies pressure to the lumbar pillow 2 or produces an action, the elastic component 5 expands and contracts in the assembly groove 9, and the abutment end 12 of the third connecting member 11 plays a certain limiting and supporting role on the elastic component 5 in the assembly groove 9, ensuring that the expansion and contraction movement of the elastic component 5 is more stable and orderly; for example, when the elastic component 5 is subjected to greater pressure, the abutment end 12 can limit its excessive compression to ensure that appropriate support is provided; and when the pressure is smaller, it can assist the elastic component 5 to rebound to maintain a good support state.

[0047] In the embodiment of the utility model, the elastic component 5 includes a telescopic spring 13 and a slider 14, and the slider 14 is slidably matched with the assembly groove 9, wherein one end of the slider 14 is placed in the assembly groove 9, and an inner groove 15 corresponding to the telescopic spring 13 is opened, and the other end of the slider 14 extends out of the assembly groove 9 and is rotatably connected to the second connecting component 4;

[0048] One end of the telescopic spring 13 is sleeved on the abutting end 12 , and the other end of the telescopic spring 13 abuts against the inner groove 15 of the slider 14 .

[0049] In this design, the telescopic spring 13 and the slider 14 together constitute an elastic component 5. The slider 14 is slidably matched with the assembly groove 9 and can slide smoothly in the assembly groove 9. One end of the slider 14 is placed in the inner groove 15 in the assembly groove 9 to accommodate the telescopic spring 13, and the other end extends out of the assembly groove 9 and is rotatably connected to the second connecting component 4; when the user applies pressure to the lumbar pillow 2 or produces an action, the pressure is transmitted to the slider 14 through the second connecting component 4, and the slider 14 slides in the assembly groove 9, compressing or stretching the telescopic spring 13 at the same time. One end of the telescopic spring 13 is mounted on the abutting end 12 of the third connecting member 11, and the other end abuts in the inner groove 15 of the slider 14. Such a structure enables the telescopic spring 13 to stably play an elastic role between the slider 14 and the abutting end 12.

[0050] In the embodiment of the utility model, protrusions 16 are provided on both sides of one end of the slider 14 facing the notch of the inner groove 15, and a long hole 17 corresponding to the protrusion 16 is opened on the second mounting member 8, and the protrusion 16 and the long hole 17 are slidably matched, wherein the end of the long hole 17 close to the abutting end 12 has an opening 18, and the end of the long hole 17 away from the opening 18 forms an inner bottom 19 limited to the protrusion 16.

[0051] Protrusions 16 are arranged on both sides of one end of the slider 14 facing the notch of the inner groove 15, and a corresponding long hole 17 is opened on the second mounting member 8, so that the protrusion 16 can slide in the long hole 17, and the long hole 17 has an opening 18 at the end close to the abutting end 12, which is convenient for the insertion and initial installation of the protrusion 16, and the end of the long hole 17 away from the opening 18 forms an inner bottom 19 limited to the protrusion 16, so as to limit the sliding range of the protrusion 16; when the slider 14 slides in the assembly groove 9, the protrusion 16 slides along the long hole 17, that is, the cooperation between the protrusion 16 and the long hole 17, on the one hand, provides a clear guide for the sliding of the slider 14, ensures that it moves along a predetermined trajectory, and makes the extension and rotation of the lumbar support more precise; on the other hand, the inner bottom 19 limits the protrusion 16, so as to effectively control the maximum and minimum strokes of the slider 14, and avoid excessive extension or separation from the assembly groove 9.

[0052] In the embodiment of the utility model, a female column 20 is provided at one end of the first mounting member 7 facing the second mounting member 8, and a stud 21 is provided at one end of the second mounting member 8 facing the first mounting member 7, and the stud 21 is sleeved and matched with the female column 20.

[0053] The mother column 20 on the first mounting member 7 and the stud 21 on the second mounting member 8 are socketed and matched with each other. This design enables the first mounting member 7 and the second mounting member 8 to be tightly connected together; when installing, the stud 21 is screwed into the mother column 20 to fix the two. This connection method is simple and stable, and can effectively combine the first mounting member 7 and the second mounting member 8 together to form a whole, thereby providing stable support for the extension and contraction of the elastic component 5 and the swing of the lumbar pillow 2.

[0054] In the embodiment of the utility model, a rotating shaft structure 22 is horizontally arranged on the slider 14, and the second connecting component 4 is provided with a rotating shaft groove 23 corresponding to the rotating shaft structure 22, wherein blocks 24 are arranged on both sides of the rotating shaft structure 22, and a rotating shaft hole 25 matching the block 24 is opened in the rotating shaft groove 23.

[0055] The pivot structure 22 laterally arranged on the slider 14 cooperates with the pivot groove 23 on the second connecting component 4, and the blocks 24 on both sides of the pivot structure 22 can be embedded in the pivot holes 25 opened in the pivot groove 23; when the lumbar pillow 2 needs to swing up and down relative to the back cushion 1, the pivot structure 22 rotates in the pivot groove 23, and the blocks 24 move accordingly in the pivot hole 25, thereby realizing the flexible swing of the lumbar pillow 2. At the same time, the cooperation between the blocks 24 and the pivot holes 25 can limit the moving range of the pivot structure 22, thereby ensuring the stability and controllability of the swing.

[0056] In the embodiment of the utility model, the outer side of the clamping block 24 has an inclined surface 26 , and a reinforcing rib 27 is provided at the inclined surface 26 .

[0057] The inclined surface 26 on the outer side of the block 24 helps to guide the block 24 when assembling the block 24 and the shaft hole 25, so that the block 24 can be inserted into the shaft hole 25 more smoothly. The reinforcing rib 27 is arranged on the inclined surface 26, which can enhance the structural strength of the inclined surface 26 and prevent the inclined surface 26 from being deformed or damaged due to force during assembly or use.

[0058] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. An elastic waist support, characterized in that: It includes a back cushion and a lumbar pillow, wherein the back cushion is provided with a first connecting component, and the lumbar pillow is provided with a second connecting component, and an elastic component is provided between the first connecting component and the second connecting component, one end of the elastic component is telescopically matched with the first connecting component, and the other end of the elastic component is rotatably connected with the second connecting component, so that the lumbar pillow can swing up and down relative to the back cushion.

2. The elastic waist support according to claim 1, characterized in that: The back cushion is provided with an assembly position matched with a first connecting component, the first connecting component includes a first mounting member located on one side of the assembly position, and a second mounting member located on the other side of the assembly position, the first mounting member and the second mounting member are interlocked; Wherein, an assembly groove is formed between the first mounting member and the second mounting member, and one end of the elastic member can be telescopically embedded in the assembly groove.

3. The elastic waist support according to claim 2, characterized in that: The cushion is provided with a through hole at the assembly position, and the opposite ends of the first mounting member and the second mounting member are respectively passed through the through holes to enclose and form the assembly groove; The first connecting component also includes a third connecting member, which is fixed on the assembly position and is located on the same side as the first mounting member, and one end of the third connecting member extends into the assembly groove to form an abutting end acting on the elastic component.

4. The elastic waist support according to claim 3, characterized in that: The elastic component includes a telescopic spring and a slider, the slider is slidably matched with the assembly groove, wherein one end of the slider is placed in the assembly groove and is provided with an inner groove corresponding to the telescopic spring, and the other end of the slider extends out of the assembly groove and is rotatably connected to the second connecting component; One end of the telescopic spring is sleeved on the abutting end, and the other end of the telescopic spring abuts in the inner groove of the sliding block.

5. The elastic waist support according to claim 4, characterized in that: The slider is provided with protrusions on both sides of one end facing the inner groove notch, and the second mounting member is provided with a long hole corresponding to the protrusion, and the protrusion is slidably matched with the long hole, wherein the long hole has an opening at one end close to the abutting end, and the end of the long hole away from the opening forms an inner bottom limited to the protrusion.

6. The elastic waist support according to claim 2, characterized in that: A female column is arranged at one end of the first mounting member facing the second mounting member, and a stud is arranged at one end of the second mounting member facing the first mounting member, and the stud is sleeve-fitted with the female column.

7. The elastic waist support according to claim 4, characterized in that: A rotating shaft structure is horizontally arranged on the sliding block, and a rotating shaft groove corresponding to the rotating shaft structure is provided on the second connecting component, wherein clamping blocks are arranged on both sides of the rotating shaft structure, and a rotating shaft hole matching with the clamping block is provided in the rotating shaft groove.

8. The elastic waist support according to claim 7, characterized in that: The outer side of the block has an inclined surface, and reinforcing ribs are arranged on the inclined surface.

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