Multi-directional self-adaptive head supporting device and seat using same

Abstract

A multidirectional self-adaptive head support device relates to the technical field of seat accessories, and comprises a bearing assembly, which comprises a main bearing body and two side wing support blocks arranged on two sides of the main bearing body; the supporting base is connected with the seat and the bearing assembly and comprises a base body, and a guide cavity extending in the axial direction is formed in the base body; the telescopic body is movably arranged in the guide cavity, and the front end of the telescopic body extends out of the base main body; the longitudinal adjusting pair is partially arranged on the bearing assembly and comprises a longitudinal adjusting rail and a longitudinal sliding module matched with the longitudinal adjusting rail, and the bearing assembly achieves longitudinal positioning adjustment through the longitudinal sliding module; and one end of the rotating joint is connected with the longitudinal sliding module, the other end of the rotating joint is rotationally connected with the telescopic body, and the bearing assembly can swing in the horizontal plane through the rotating joint. The supporting device has good dynamic supporting performance, and meanwhile the position of the supporting device relative to the seat can be adjusted according to different users.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seat accessory, especially to a multidirectional self -adaptation head support device and use the seat of this support device. BACKGROUND

[0002] As a tool for supporting the back of the human body, the design core of the headrest needs to consider both health protection (such as relieving cervical fatigue) and dynamic adaptability (movable with the neck). With the increasing number of people working while sitting and the increasing demand for healthy posture, traditional fixed or single height-adjustable headrests cannot meet the needs of multiple scenarios.

[0003] In the prior art, for the headrest for the seat, the headrest adjusting mechanism disclosed in the authorized announcement No. CN221060104 includes a headrest mounting frame, a cover plate is fixed on the headrest mounting frame through bolts, the headrest mounting frame is provided with a connecting head, and a fixed plate is fixed on the connecting head through bolts; further comprising: a sliding plate, the upper end of the sliding plate is rotatably connected to the connecting head, the sliding plate is connected with a wedge-shaped clamping block, the sliding plate is slidably connected in a fixed box, a cover is fixed on the fixed box through bolts, a protrusion is fixedly installed in the fixed box, and the lower end of the fixed box is rotatably connected to the mounting head; the headrest mounting frame is also fixed with a clamping plate, and the headrest mounting frame is also fixed with a clamping plate. The headrest adjusting mechanism adopts a multidirectional adjusting structure, can realize the adjustment of the headrest in the up-down, front-back and support angle directions, so as to better meet the actual use requirements, improve the adaptability of the device, and cooperate with the elastic clamping mechanism to ensure the stability of the device after adjustment.

[0004] In the above prior art, all the adjusting functions of the headrest are adjustment structures before use by the user, that is, the user needs to adjust the relative position of the headrest before leaning and using, and the headrest is a fixed position during use, which is not different from general headrests. Utility model content

[0005] The technical problem to be solved by the utility model is how to make the headrest self-adapt to head movement in the pillow lying state and realize dynamic multidirectional support.

[0006] To achieve the above object, according to one aspect of the utility model, a kind of multidirectional adaptive head support device is provided, for the component of supporting user head and / or neck on seat, include: support assembly, including main support body and the two side wing support blocks of being set to the main support body both sides;Support base, connecting the seat and the support assembly, including base body, inside setting axial extension guide chamber;Telescopic body, movably be set in the guide chamber, and, the telescopic body front end extends out base body outside;Longitudinal adjustment sub, part is set on support assembly, including longitudinal adjustment track and with the longitudinal sliding module of longitudinal adjustment track cooperation, the support assembly is realized longitudinal positioning adjustment by longitudinal sliding module;Rotary joint, one end is connected with the longitudinal sliding module, the other end is rotatably connected with the telescopic body, the rotary joint makes the support assembly can swing in horizontal plane.

[0007] As the preferred of above technical scheme, the guide chamber is further provided with an elastic reset member, one end of the elastic reset member abuts against the bottom surface of the guide chamber, and the other end abuts against the telescopic body.

[0008] As the preferred of above technical scheme, the telescopic body is provided with a plurality of sliding pair mounting grooves, at least two linear rollers are embedded in each sliding pair mounting groove, and a plurality of guide rail grooves adapted to the linear rollers are formed on the inner wall of the guide chamber.

[0009] As the preferred of above technical scheme, further comprising a rear support platform, the rear support platform is provided with a locking and buffering mechanism, the locking and buffering mechanism comprises a locking sleeve and an adjusting knob arranged in the locking sleeve; the base body and the telescopic body are respectively provided with a first limiting hole and a second limiting hole; the adjusting knob is movable up and down along the locking sleeve, and when the first limiting hole and the second limiting hole are aligned, the adjusting knob is inserted to lock the relative position of the base body and the telescopic body.

[0010] As the preferred of above technical scheme, the locking sleeve is provided with two spiral sliding guide flanges on the inner wall and a locking groove at the top end; the adjusting knob is coaxially arranged with the locking sleeve, two guide lugs are arranged on the adjusting knob, the guide lugs are spirally matched on the sliding guide flanges, and when the adjusting knob is rotated to the top end of the sliding guide flanges, the guide lugs are embedded in the locking groove to form a limit.

[0011] As the preferred technical scheme of the above, the inner side wall of the longitudinal adjusting track is processed with two rows of symmetrically arranged wave tooth type embedding surfaces, the longitudinal sliding module is symmetrically provided with clamping tongues on both sides, and the longitudinal sliding module is provided with deformation cavities for the elastic deformation of the two clamping tongues.

[0012] As the preferred technical scheme of the above, the surface of the longitudinal adjusting track on the supporting assembly is fixedly connected with a cover plate through fasteners, the cover plate cooperates with the longitudinal adjusting track to define a limiting cavity, and the longitudinal sliding module is located in the limiting cavity.

[0013] As the preferred technical scheme of the above, the rotating joint is partially arranged in the telescopic body, the rotating joint is rotationally connected with the telescopic body, and the rotating joint is integrated with a twisting module at the center of a rotating shaft.

[0014] As the preferred technical scheme of the above, the end of the rotating joint is provided with a plurality of guide protrusions, and the back surface of the supporting assembly is correspondingly provided with a plurality of guide grooves; the guide protrusions and the guide grooves are slidingly matched to provide limiting guidance for longitudinal adjustment.

[0015] A seat, characterized by comprising the multi-directional self-adaptive head support device according to any one of the above technical schemes.

[0016] In summary, the utility model has the following advantages:

[0017] 1. The wave tooth embedding self-locking structure of the longitudinal sliding module is matched with the axial buffer of the elastic reset element, synchronous realization of the optimization of up-down adjustment resistance and the front-rear damping function, cooperation with the use of the rotating joint, so that the overall structure meets the multi-dimensional support demand of the free movement of the head;

[0018] 2. Through the elastic deformation design of the clamping tongue and the wave tooth type embedding surface of the longitudinal adjusting track, the user can unlock and adjust by pressing with one hand, and the automatic occlusion locking after release ensures that the adjustment process is labor-saving and resistant to transverse sliding when leaning on the pillow, realizing low operating force and high stability of longitudinal adjustment;

[0019] 3. The locking and buffering mechanism cooperates the screw guide flange of the adjusting knob with the limiting hole to realize the linkage of the rotation angle of the knob and the limiting state of the telescopic body, one-key opening and closing of the elastic buffering function of the supporting assembly, suitable for different use scene requirements.

[0020] 4. The rolling contact cooperation of the linear roller and the double-sided wall guide rail groove reduces the friction loss, the modular packaging design of the cover plate and the limiting cavity prevents foreign matter from invading, guarantees the long-term stability and adjustment accuracy of the longitudinal sliding pair, that is, the overall structure is a high-precision and durable design.

[0021] Further or other details of the beneficial effects will be discussed in the embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is an exploded view of the longitudinal adjustment pair, the rotary joint and the cover plate of the utility model;

[0024] Figure 3 It is a schematic diagram of the main supporting body and the rotary joint of the utility model;

[0025] Figure 4 It is an exploded view of the rear support table, the base main body and the telescopic body of the utility model;

[0026] Figure 5 It is a schematic diagram of the adjustment knob of the utility model;

[0027] Figure 6 It is a sectional view of the adjustment knob and the locking sleeve of the utility model;

[0028] Wherein, 1-supporting assembly, 11-main supporting body, 111-guiding groove, 12-side wing supporting block, 2-supporting base, 21-base main body, 22-telescopic body, 21a-first limiting hole, 22a-second limiting hole, 211-guiding chamber, 212-guiding rail groove, 221-sliding pair mounting groove, 222-linear roller, 23-longitudinal adjustment pair, 231-longitudinal sliding module, 231a-deformation cavity, 2311-claw, 232-longitudinal adjustment track, 232a-wavy tooth type embedding surface, 24-rotary joint, 241-guiding protrusion, 25-cover plate, 3-rear support table, 31-locking sleeve, 32-adjustment knob, 311-sliding guiding flange, 312-stopping groove, 322-guiding block. DETAILED DESCRIPTION

[0029] In the present specification, the orientation terms such as up, down, left, right, front, back, front face, back face, top, bottom, etc. are defined with respect to the configuration shown in the drawings, and the words "inner" and "outer" refer to the direction toward or away from the geometric center of a particular component, which are relative concepts, so it is possible to change accordingly according to different positions and different use states. Therefore, these or other orientation terms should not be interpreted as restrictive terms.

[0030] The utility model will be further explained in combination with the embodiments as follows:

[0031] Embodiment:

[0032] A multi-directional adaptive head support device is a component on a seat that supports the user's head and / or neck, as described above. Figure 1 The device includes a support assembly 1 and a support base 2 for connecting the support assembly 1 to the seat. More specifically, the support assembly 1 includes a main support body 11 and a pair of adjustable side support blocks 12. The side support blocks 12 are hinged to the main support body 11, meaning that the entire support assembly 1 can be adaptively adjusted according to the user's head and / or neck contour. A limiting part is also provided between the side support blocks 12 and the main support body 11 to ensure that the adjustment range of the side support blocks 12 is adjusted within the user's comfort range.

[0033] Reference Figure 4 The support base 2 can be specifically divided into a base body 21 and a telescopic body 22. The base body 21 has a guide chamber 211 extending along the axial direction inside. The telescopic body 22 is disposed inside the guide chamber 211. The telescopic body 22 moves forward and backward along the axial direction of the base body 21 inside the guide chamber 211. The telescopic body 22 is directly or indirectly connected to the support component 1 through other connecting structures, thereby enabling the support component 1 to have the ability to move forward and backward.

[0034] As a supplement, let me explain the so-called forward and backward movement capability. In this application, the base body 21 is fixedly connected to the backrest of the seat during the later assembly process. Therefore, forward and backward movement refers to the support component 1 achieving forward and backward movement relative to the seat backrest with the assistance of the aforementioned components. Of course, the reason why this application allows the support component 1 to have the ability to move forward and backward is actually to enable the entire head support device to have a cushioning capability when leaning against it. In this way, it can both protect the overall structure and provide shock absorption for the user's head and / or neck when leaning against it. Specifically, an elastic reset element (not shown in the figure) is also provided in the guide chamber 211. Specifically, it can be a compression spring. One end of the elastic reset element abuts against the bottom of the guide chamber 211, and the other end abuts against the telescopic body 22. Based on the above structural setting, the support component 1 achieves elastic buffer displacement along the axial direction of the support base 2.

[0035] In order to stabilize the relative movement of the base body 21 and the telescopic body 22, the application also provides a guide structure between the two, specifically, the axial end face of the telescopic body 22 is symmetrically distributed in four quadrants in the circumferential direction and is provided with four sliding pair mounting grooves 221, and at least two linear rollers 222 are embedded in each sliding pair mounting groove 221; the inner wall of the guide cavity 211 of the base body 21 is symmetrically formed with four groups of guide rail grooves 212 adapted to the linear rollers 222, and the cross section of the guide rail groove 212 is a groove structure limited by double side walls, and the rolling of each linear roller 222 forms rolling contact with the left and right guide side wall bottoms of the corresponding guide rail groove 212, which takes into account the low-cost manufacturing requirements and the linear guide precision requirements. In addition, if the cost is not considered, in another embodiment of the application, the guide structure selects a linear bearing.

[0036] With reference to Figure 1 , Figure 2 and Figure 3 , the swing joint is provided between the supporting assembly 1 and the support base 2, the support base 2 comprises a rotating joint 24, the rotating joint 24 is integrated with a torsion module at the rotating shaft center, and the torsion module can be a torsion spring structure, so that the supporting assembly 1 is self-adaptable to the lateral swing of the human head within the range of ±15° relative to the support base 2.

[0037] The rotating joint 24 is partially clamped in the telescopic body 22, and the rotating joint 24 is connected by a rotating pin between the telescopic body 22, which cooperates with the torsion module mentioned above to perfect the specific structure of the swing joint.

[0038] With reference to Figure 2, one end of the support base 2 is provided with a longitudinal adjusting auxiliary 23 for controlling the longitudinal movement and limiting of the supporting assembly 1, the longitudinal adjusting auxiliary 23 comprises a longitudinal sliding module 231 and a longitudinal adjusting track 232, the longitudinal sliding module 231 is fixedly connected with the end of the support base 2 close to the supporting assembly 1, and the longitudinal adjusting track 232 is arranged in the supporting assembly 1, it is to be noted that the longitudinal adjusting auxiliary 23 has self-locking capability, the inner side wall of the longitudinal adjusting track 232 is processed with two rows of symmetrical wave tooth type fitting surfaces 232a, while ensuring low operation force unlocking, the anti-slippage capability in high load state is maintained, the two sides of the longitudinal sliding module 231 are symmetrically provided with clamping tongues 2311, and the longitudinal sliding module 231 is provided with deformation cavities 231a for the two clamping tongues 2311 to deform towards each other, the clamping tongues 2311 deform towards each other to form clamping gaps of the clamping wave teeth in cooperation with the deformation cavities 231a; when the user implements longitudinal adjustment, the longitudinal force applied by the user cooperates with the wave tooth type fitting surfaces 232a to make the two clamping tongues 2311 elastically deformed to relatively displace, the two clamping tongues 2311 are separated from the fitting state of the wave teeth; after the external force is removed, the clamping tongues 2311 are automatically re-engaged with the adjacent tooth grooves to form positioning under the action of the elastic potential energy. This mode is sufficient for general use, after all, when not adjusting, the area subjected to external force only has the force of the user leaning back, and the fitting state of the clamping tongues 2311 and the wave teeth can bear the weight of the supporting assembly 1 itself. The surface of the longitudinal adjusting track 232 located on the main supporting body 11 is fixedly connected with a cover plate 25 through bolts, the cover plate 25 cooperates with the longitudinal adjusting track 232 to define a limiting cavity, and the longitudinal sliding module 231 is located in the limiting cavity, so that the freedom degree of the longitudinal movement of the longitudinal sliding module 231 is single-constrained.

[0039] In connection with the above, the rotating joint 24 is rotatably connected with the telescopic body 22, one end of the rotating joint 24 away from the telescopic body 22 abuts against the supporting assembly 1, and the longitudinal sliding module 231 is arranged in the rotating joint 24 through the avoiding opening arranged on the supporting assembly 1 and is fixed, in addition, the connecting end of the rotating joint 24 and the telescopic body 22 is in a cylindrical structure for conveniently avoiding rotation, and one end of the rotating joint 24 abutting against the supporting assembly 1 is in a curved surface or a plane (determined by the back contour of the main supporting body 11, the back contour of the main supporting body 11 in the embodiment is a curved surface, so the one end of the rotating joint 24 abutting against the supporting assembly 1 is also a curved surface) for conveniently adapting to the back contour of the supporting assembly 1 (specifically the back contour of the main supporting body 11), a plurality of guide protrusions 241 are arranged on the one end of the rotating joint 24 close to the supporting assembly 1 in the longitudinal direction, and the back of the supporting assembly 1 has a plurality of guide grooves 111 arranged in the longitudinal direction of the supporting assembly 1, the guide protrusions 241 and the guide grooves 111 are matched, the guide protrusions 241 can slide up and down in the guide grooves 111, and the longitudinal adjusting auxiliary 23 is further provided with longitudinal adjusting guidance to further stabilize the longitudinal adjustment of the supporting assembly 1.

[0040] Referring to Figure 1 , Figure 4 , Figure 5 and Figure 6 The multi-directional adaptive head support device also comprises a rear support platform 3, the base body 21 is fixedly connected with the rear support platform 3 through bolts, and threaded holes are formed in the rear support platform 3. The entire multi-directional adaptive head support device can be fastened to the seat back through the bolts passing through the rear support platform 3.

[0041] The rear support platform 3 is integrated with a locking and buffering mechanism for controlling the opening or closing of the elastic buffering function of the supporting assembly 1. The locking and buffering mechanism comprises a locking sleeve 31 and an adjusting knob 32. The locking sleeve 31 is integrally formed on the rear support platform 3 and is in a tubular structure with a cavity formed inside. Two sliding guide flanges 311 are formed on the inner wall of the cavity and are distributed in an axial spiral manner. A locking groove 312 is formed at the opening of the top end of the locking sleeve 31. The sliding guide flanges 311 naturally transition to the locking groove 312 at the highest position, thereby forming a rotation limiting structure at the highest position based on the above arrangement. The adjusting knob 32 is a adjusting component coaxially assembled in the locking sleeve. Two guide protrusions 322 are symmetrically arranged on the adjusting knob 32. The guide protrusions 322 are spirally matched with the sliding guide flanges 311. When the adjusting knob 32 is rotated to the highest position, the guide protrusions 241 fall into the locking groove 312, thereby limiting the adjusting knob 32 at the highest position. The base body 21 and the telescopic body 22 are respectively provided with a first limiting hole 21a and a second limiting hole 22a in a position. When the telescopic body 22 enters the base body 21 to a certain extent, the first limiting hole 21a is aligned with the second limiting hole 22a. At this time, the lower end of the adjusting knob 32 is inserted into the first limiting hole 21a and the second limiting hole 22a, thereby limiting the relative position of the base body 21 and the telescopic body 22.

[0042] Based on the above structure, the elastic buffering displacement function of the supporting assembly 1 in the axial direction of the support base 2 is disabled or enabled. The logic of the function is as follows: counterclockwise rotation of the adjusting knob 32, the guide protrusions 322 spirally move downward along the sliding guide flanges 311, and the lower end of the adjusting knob 32 is inserted into the first limiting hole 21a and the second limiting hole 22a, so that the supporting assembly 1 loses the buffering function; clockwise rotation of the adjusting knob 32, the guide protrusions 322 spirally move upward along the sliding guide flanges 311, and the lower end of the adjusting knob 32 is gradually pulled out of the first limiting hole 21a and the second limiting hole 22a, so that the supporting assembly 1 regains the axial buffering capacity. In addition, when the adjusting knob 32 reaches the top of the stroke, the guide protrusions 322 fall into the locking groove 312. Without upward pulling and rotating, the adjusting knob 32 will not easily descend and be inserted into the limiting hole.

[0043] Under the normal use, the main supporting body 11 and the side wing supporting block 12 are covered with an outer covering material on the side face towards the user, which can be a technical cloth, leather or artificial leather, etc. In addition, a flexible supporting material, which can be polyester fiber, down or sponge, etc. is filled between the supporting assembly 1 and the outer covering material.

[0044] Although preferred embodiments of the present application have been described, those skilled in the art will be able to make additional changes and modifications to these embodiments once they have been given the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present application.

[0045] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A multidirectional self-adapting head support device, being a component for supporting a user's head and / or neck on a seat, characterized in that, Comprising: The supporting assembly comprises a main supporting body and two side wing supporting blocks arranged on both sides of the main supporting body; The supporting base is connected to the seat and the supporting assembly, and comprises The base body is internally provided with an axially extending guide chamber; The telescopic body is movably arranged in the guide chamber, and the front end of the telescopic body extends out of the base body; The longitudinal adjustment sub is partially arranged on the supporting assembly, and comprises a longitudinal adjustment track and a longitudinal sliding module matched with the longitudinal adjustment track, and the supporting assembly is longitudinally positioned and adjusted through the longitudinal sliding module; The rotating joint is connected to the longitudinal sliding module at one end and rotatably connected to the telescopic body at the other end, and the rotating joint enables the supporting assembly to swing in the horizontal plane.

2. A multi-directional self-adapting head support device according to claim 1, wherein, The guide chamber is further provided with an elastic reset member, one end of the elastic reset member abuts against the bottom surface of the guide chamber, and the other end abuts against the telescopic body.

3. A multi-directional self-adapting head support device according to claim 1, wherein, A plurality of sliding sub mounting grooves are formed in the telescopic body, at least two linear rollers are embedded in each sliding sub mounting groove, and a plurality of guide rail grooves adapted to the linear rollers are formed in the inner wall of the guide chamber.

4. A multi-directional self-adapting head support device according to claim 2, wherein, The rear supporting table is provided with a locking and buffering mechanism, the locking and buffering mechanism comprises a locking sleeve and an adjusting knob arranged in the locking sleeve; the base body and the telescopic body are respectively provided with a first limiting hole and a second limiting hole; the adjusting knob is movable up and down along the locking sleeve, and the relative positions of the base body and the telescopic body are locked when the adjusting knob is inserted into the first limiting hole and the second limiting hole.

5. A multi-directional self-adapting head support device according to claim 4, wherein, The locking sleeve is provided with two spiral sliding guide flanges on the inner wall and a locking groove at the top end; the adjusting knob is coaxially arranged with the locking sleeve, two guide lugs are arranged on the adjusting knob, the guide lugs are spirally matched with the sliding guide flanges, and the guide lugs are embedded in the locking groove to form a limit when the adjusting knob is rotated to the top end of the sliding guide flange.

6. A multi-directional self-adapting head support device according to claim 1, wherein, The inner side wall of the longitudinal adjustment track is processed with two rows of symmetrically arranged wave tooth type embedding surfaces, the longitudinal sliding module is symmetrically provided with clamping tongues on both sides, the longitudinal sliding module is provided with deformation cavities for the elastic deformation of the two clamping tongues, the clamping tongues are elastically retracted or reset through the extrusion of the tooth surface when the longitudinal sliding module moves, and the clamping gap of the clamping wave tooth is formed when the clamping tongues are elastically retracted.

7. A multi-directional self-adapting head support device according to claim 6, wherein, The surface of the longitudinal adjustment track on the supporting assembly is fixedly connected with a cover plate through a fastener, the cover plate cooperates with the longitudinal adjustment track to define a limiting cavity, and the longitudinal sliding module is located in the limiting cavity.

8. A multi-directional self-adapting head support device according to claim 1, wherein, The rotating joint is partially arranged in the telescopic body, and the rotating joint is rotatably connected to the telescopic body, and the rotating joint is integrated with a twisting module at the center of the rotating shaft.

9. A multi-directional self-adapting head support device according to claim 1, wherein, The end of the rotating joint is provided with a plurality of guide protrusions, and the back surface of the supporting assembly is correspondingly provided with a plurality of guide grooves; the guide protrusions and the guide grooves are slidingly matched to provide limiting guidance for longitudinal adjustment.

10. A seat, characterized by The multi-directional self-adaptive head support device comprises any one of claims 1-9.

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