CN217907040U

CN217907040U - Hardness adjustable cushion structure

Info

Publication number: CN217907040U
Application number: CN202222240808.XU
Authority: CN
Inventors: 顾文清; 顾勤弟; 黄亚雄; 高正辉; 刘毅
Original assignee: Shanghai Youao Intelligent Technology Co ltd; Zhejiang Tengwei Office Equipment Co ltd
Current assignee: Shanghai Youao Intelligent Technology Co ltd; Zhejiang Tengwei Office Equipment Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-11-29
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses a hardness adjustable cushion structure relates to ergonomic chair, aims at solving the problem of inconvenient application of force, and its technical scheme main points are: the utility model provides a hardness adjustable cushion structure, including the cushion base, hardness adjusting pad and contact surface cushion, the hardness adjusting pad runs through and is provided with the centre bore, the hardness adjusting pad uses the centre bore to cut apart into a plurality of elastic deformation portion as the center, the lower surface of a plurality of elastic deformation portions uses the centre bore to encircle to be provided with and tightens up the atress portion, it is equipped with the disc spring billet to tighten up the atress portion cover, the cushion base is provided with the regulation stroke groove, it is connected with adjust the slider to adjust the stroke groove and slide, it connects to be provided with the haulage rope between adjust slider and the disc spring billet outmost, adjust the slider and be connected with to hold between the fingers and hold the board, be provided with limit structure between regulation stroke groove and the adjust the slider. The utility model discloses a hardness adjustable cushion structure, it is more convenient to have the application of force, and the technological effect of the soft or hard adjustable range of perception more easily.

Description

Hardness adjustable cushion structure

Technical Field

The utility model relates to an ergonomic chair, more specifically say, it relates to a hardness adjustable cushion structure.

Background

The office chair is widely accepted and loved by people as a seat which is widely used in work and life, is one of the essential furniture in modern office and household environments, and the adjusting function of the office chair back in the market at present is mostly a plurality of functions of backward tilting adjustment, backrest lifting adjustment and waist rest lifting adjustment.

According to the market demand, the inventor applies for Chinese patent with publication number CN215686209U, and the technical key points are as follows: the seat cushion comprises a seat cushion shell, wherein the seat cushion shell comprises an elastically deformable seat-bearing combined plate and a seat-bearing plate bottom shell, the seat-bearing combined plate is arranged on an upper cover of the seat-bearing plate bottom shell, a seat is arranged on an upper cover of the seat-bearing combined plate, the seat-bearing combined plate comprises a seat-bearing front plate and a seat-bearing rear plate, a front half mounting flange head is arranged on the bottom surface of the middle of the rear edge of the seat-bearing front plate, a rear half mounting flange head is arranged on the bottom surface of the middle of the front end edge of the seat-bearing rear plate, the front half mounting flange head and the rear half mounting flange head are spliced to form a mounting flange head, an elastic annular fastener is arranged on a neck hoop of the mounting flange head, the seat-bearing front plate and the seat-bearing rear plate form elastic connection with adjustable relative positions through the elastic annular fastener, and the seat-bearing front plate and the seat-rear plate adjust the degree of elastic deformation according to the seat weight.

Above-mentioned technical scheme adjusts the hoop power of elasticity annular fastener to the neck, realizes the regulation to the cushion hardness, is used for can adjusting the hardness of cushion according to the soft or hard demand of self.

The technical scheme further discloses that: rotate the spiral line mechanism through rotatory adjust knob and receive and release the stay cord, the elasticity annular fastener that the stay cord is connected, for example, the wind spring, can tighten up or relax, elasticity annular fastener is connecting sitting front bezel and sitting back plate, when elasticity annular fastener relaxs, the user sits on the seat, the sitting front bezel will scatter with the stress of sitting back plate, the sunken degree of depth of seatpad can be darker, at this moment the area of contact of user's buttock and cushion will be great, the sitting is felt can be softer, when elasticity annular fastener tightens up, the sitting front bezel will be gathered together with the sitting back plate, the sunken degree of depth that the seatpad allows will be shallower, at this moment the area of contact of user's buttock and cushion will be less, the sitting is felt can be harder.

In the technical scheme, the hardness of the cushion is adjusted by rotating the adjusting knob, but in practical application, the problem that the force is inconvenient to apply due to the fact that a palm needs to stretch to the bottom of the cushion and then the adjusting knob is screwed when a user sits on the cushion, namely the problem that the hardness of the cushion is inconvenient to adjust exists; therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a hardness adjustable cushion structure has the application of force more convenient, and the technological effect of the soft or hard adjustable range of easier perception.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a hardness adjustable cushion structure, includes the cushion base, sets up in the hardness adjusting pad of cushion base to and the contact surface cushion that hardness adjusting pad was located to the cover, hardness adjusting pad runs through and is provided with the centre bore, hardness adjusting pad uses the centre bore to cut apart into a plurality of elastic deformation portion as the center, and is a plurality of elastic deformation portion's lower surface uses the centre bore to encircle to be provided with as the center and tightens up the atress portion, it is equipped with the disc spring billet to tighten up the atress portion cover, the cushion base is provided with the regulation stroke groove, it is connected with adjust the slider to adjust the stroke groove and slide, adjust slider and disc spring billet and be provided with the haulage rope between the outer end and connect, adjust the slider and be connected with holding the board between the fingers, be provided with limit structure between regulation stroke groove and the adjust the slider.

By adopting the technical scheme, when the hardness of the adjusting pad needs to be adjusted, a user applies force to the holding plate to force the adjusting slider to slide along the adjusting stroke groove, when the adjusting slider slides towards the front end of the adjusting stroke groove, pulling force is generated on the traction rope, and the disc-shaped spring steel bar is pulled to contract and tighten the plurality of tightening stress parts through the pulling force transmission of the traction rope, so that the plurality of elastic deformation parts are forced to be gathered to the central hole to be tightened, and further the hardness of the hardness adjusting pad is improved, namely the overall hardness feeling of the user sitting in the adjusting pad is improved; to sum up, this application realizes the regulation to the cushion hardness through the slip adjustment slider, compares in prior art, realizes the regulation to the cushion hardness through rotatory adjust knob, and on the one hand push-and-pull power is compared in the user application of force of being convenient for more of knob power, and on the other hand is under the state of not observing, and displacement position and angular position compare, are perceived by the user more easily for the more clear degree of knowing specific adjustable soft or hard of user.

The utility model discloses further set up to: the lower surface symmetry of hardness adjusting pad is provided with two protruding seats, two protruding seat frame is equipped with the elastic support strip, the elastic support strip is in the below of centre bore.

The utility model discloses further set up to: and the lower surfaces of the elastic deformation parts which bear the deformation of the two sides are provided with rubber blocks close to the central hole, and the rubber blocks are in butt fit with the elastic supporting bars.

The utility model discloses further set up to: the tightening stress part is arc-shaped, the tightening stress parts are annular and surround the center hole, and the bottom end of the tightening stress part is provided with an outward-folding rod.

The utility model discloses further set up to: the cushion base is fixedly provided with a wire conduit, and the wire conduit guides two ends of the traction rope to be respectively connected with the adjusting slide block and the disc-shaped spring steel bar.

The utility model discloses further set up to: the adjusting slide block is arranged in a hollow mode and provided with two thin walls easy to deform, and the limiting structure comprises locking convex blocks arranged on the outer sides of the thin walls easy to deform and locking notches arranged at equal intervals along the groove walls of the adjusting stroke grooves.

The utility model discloses further set up to: the adjusting mechanism is characterized in that a self-locking support block is connected between the adjusting sliding blocks in a sliding mode, the holding plate is fixed with the self-locking support block through bolts, self-locking shallow teeth are arranged on two sides of the self-locking support block, and a shallow tooth boss matched with the self-locking shallow teeth is arranged in the center of the inner side wall of the easily-deformable thin wall.

The utility model discloses further set up to: and reset compression springs are respectively arranged between the two ends of the self-locking supporting block and the two ends of the inner wall of the adjusting slide block.

To sum up, the utility model discloses following beneficial effect has: the adjustment of the hardness of the cushion is realized through the sliding adjusting slide block, compared with the prior art, the adjustment of the hardness of the cushion is realized through rotating the adjusting knob, on one hand, the push-pull force is more convenient for a user to apply force compared with the knob force, on the other hand, the displacement position and the angle position are more easily perceived by the user under the condition of no observation, so that the user can more clearly know the specific adjustable hardness degree; the elastic supporting bars are connected with the two side parts of the hardness adjusting pad, so that the integrity of the two sides is improved, and the stress uniformity of the two sides is effectively improved; the hidden danger that the elastic deformation parts on two sides enter an elastic fatigue stage too early is effectively reduced through further supporting by the rubber blocks; ensuring the connection stability of the plurality of tightening stress parts and the disc spring steel bars; the traction rope is guided through the wire conduit, so that the traction rope is effectively prevented from interfering with other structures of the cushion base; the limiting structure realizes the limitation on the sliding mobility of the adjusting slide block through the matching of the locking lug and the locking notch; by additionally arranging the self-locking supporting block, the sliding capacity of the adjusting slide block is locked on the premise of not influencing the sliding resistance of the adjusting slide block, and the problem of poor limiting effect of a limiting structure is avoided; the self-locking supporting block is pushed by the reset compression spring, so that the self-locking supporting block is automatically reset.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present application;

FIG. 2 is an exploded view of the present application;

FIG. 3 is a schematic view of the hardness adjusting pad according to the present application;

FIG. 4 is a schematic view of the seat base of the present application;

fig. 5 is a schematic structural diagram of an adjusting slider according to the present application.

Description of the drawings: 1. a seat cushion base; 2. a hardness adjusting pad; 3. a contact surface cushion; 4. a central bore; 5. An elastic deformation portion; 6. tightening the stress part; 7. a coil spring steel bar; 8. adjusting a stroke groove; 9. adjusting the sliding block; 10. a pinching plate; 11. a complete plane; 12. a boss base; 13. an elastic support strip; 14. gluing blocks; 15. an outward folding rod; 16. a hauling rope; 17. a conduit; 18. easy deformation thin wall; 19. a locking projection; 20. a locking notch; 21. a self-locking supporting block; 22. self-locking shallow teeth; 23. a shallow tooth boss; 24. the compression spring is restored.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a hardness adjustable cushion structure, as figure 1, figure 2, as shown in figure 3, including cushion base 1, the border is fixed in cushion base 1's hardness adjusting pad 2, and the contact surface cushion 3 that hardness adjusting pad 2 was located to the cover, hardness adjusting pad 2 runs through and is provided with centre bore 4, use centre bore 4 to cut apart into a plurality of elastic deformation portion 5 as the center, the lower surface of a plurality of elastic deformation portion 5 uses centre bore 4 to encircle integrated into one piece as the center and has tighten up atress portion 6, it is equipped with disc spring billet 7 to tighten up 6 covers of atress portion, cushion base 1 integrated into one piece has regulation stroke groove 8, it is connected with adjusting block 9 to adjust stroke groove 8 to slide, be provided with haulage rope 16 between adjusting block 9 and the disc spring billet 7 outermost end and connect, adjusting block 9 is connected with and holds between the board 10, be provided with the restriction structure between adjusting stroke groove 8 and the adjusting block 9.

When the hardness of the application needs to be adjusted, a user applies force to the holding plate 10 to force the adjusting slider 9 to slide along the adjusting stroke groove 8, when the adjusting slider 9 slides towards the front end of the adjusting stroke groove 8, tension is generated on the traction rope 16, the disc-shaped spring steel bar 7 is pulled to contract and tighten the plurality of tightening stress parts 6 through the tension transmission of the traction rope 16, so that the plurality of elastic deformation parts 5 are forced to be gathered and tightened towards the central hole 4, the hardness of the hardness adjusting pad 2 is improved, namely the overall hardness feeling of the user sitting in the application is improved, when the adjusting slider 9 slides towards the rear end of the adjusting stroke groove 8, the traction rope 16 gradually loses tension, namely the disc-shaped spring steel bar 7 gradually loses tension and gradually expands and loosens, so that the tightening force for the plurality of elastic deformation parts 5 is reduced, the hardness of the hardness adjusting pad 2 is reduced, namely the overall hardness of the user sitting in the application is reduced, and after the sliding adjustment of the adjusting slider 9 is completed, the motion degree of the adjusting slider 9 is limited by a limiting structure, so that abnormal sliding of the adjusting slider 9 is avoided from abnormal sliding and the abnormal change of the hardness; to sum up, this application realizes through slide adjusting slider 9 to the regulation of cushion hardness, compares in prior art, realizes the regulation to the cushion hardness through rotatory adjust knob, and on the one hand push-and-pull power is compared in the user's application of force of being convenient for more of knob power, and on the other hand is under the state of not observing, and displacement position and angular position are compared, are perceived by the user more easily for the more clear degree of knowing specific adjustable soft or hard of user.

It should be noted that, as shown in fig. 2 and 3, the hardness adjusting pad 2 is in a grid shape when viewed from above, so as to improve the deformability of each elastic deformation portion 5, the hardness adjusting pad 2 is provided with a complete plane 11 at the edge of the central hole 4 and the front end concave initial region, so as to ensure the loadability of the two regions, the central hole 4 region is a concentrated region of the tightening force, the front end concave revelation region is a concentrated region of the leg force of the user, and both regions are regions with larger stress.

For improving the whole of the two side parts of the hardness adjusting pad 2, as shown in fig. 3, two convex seats 12 are symmetrically and integrally formed on the lower surface of the hardness adjusting pad 2, elastic support bars 13 are erected on the two convex seats 12, and the elastic support bars 13 are located below the central hole 4, so that the two side parts of the hardness adjusting pad 2 are connected by the elastic support bars 13, the whole of the two sides is improved, and the stress uniformity of the two sides of the hardness adjusting pad is effectively improved.

It should be noted that, as shown in fig. 3, the lower surfaces of the two elastic deformation portions 5 which undertake the deformation of the two sides are provided with a rubber block 14 near the central hole 4, the rubber block 14 is in butt fit with the elastic support strip 13, so as to support the two elastic deformation portions 5 which undertake the deformation of the two sides, it should be further noted that, due to the width problem, the deformation amount of the unit regions of the two sides is reduced, so the elastic deformation portions 5 of the two sides are vulnerable regions, and are further supported by the rubber block 14, thereby effectively reducing the hidden danger that the elastic deformation portions 5 of the two sides enter the elastic fatigue stage too early.

The concrete structure that tightens up atress portion 6 is as follows, as shown in fig. 3, tightens up atress portion 6 and is circular-arcly, and a plurality of atress portions 6 that tighten up are the annular around centre bore 4 to ensure a plurality of homogeneity of tightening up the power that atress portion 6 receives, tighten up 6 bottom integrated into one piece of atress portion and have outer folding rod 15, thereby ensure a plurality of stability of being connected of tightening up atress portion 6 and disc spring billet 7.

In order to guide the hauling cable 16, as shown in fig. 4, the seat cushion base 1 is fixedly provided with a conduit 17, and the conduit 17 guides two ends of the hauling cable 16 to be respectively connected with the adjusting slide block 9 and the disc spring steel bar 7, so as to guide the hauling cable 16 and effectively prevent the hauling cable 16 from interfering with other structures of the seat cushion base 1.

The limiting structure has the following specific structure, as shown in fig. 4 and 5, the adjusting slider 9 is arranged in a hollow manner and is provided with two thin walls 18 which are easy to deform, the limiting structure comprises locking lugs 19 which are integrally formed on the outer sides of the thin walls 18 which are easy to deform, and locking notches 20 which are arranged at equal intervals along the groove walls of the adjusting stroke grooves 8, so that the limiting structure realizes the limitation of the sliding mobility of the adjusting slider 9 through the matching of the locking lugs 19 and the locking notches 20, and limits the locking lugs 19 to be arranged on the thin walls 18 which are easy to deform, thereby avoiding the overlarge resistance when a user slides the adjusting slider 9.

In order to avoid the problem that the limiting effect of the limiting structure is poor due to the reduction of the resistance of the adjusting slide blocks 9, as shown in fig. 5, a self-locking supporting block 21 is connected between the adjusting slide blocks 9 in a sliding manner, a holding plate 10 is fixed with the self-locking supporting block 21 through bolts, self-locking shallow teeth 22 are arranged on two sides of the self-locking supporting block 21, and a shallow tooth boss 23 matched with the self-locking shallow teeth 22 is integrally formed in the centers of the inner side walls of the two easily-deformable thin walls 18; when a user applies force to the holding plate 10, the self-locking supporting block 21 is forced to slide firstly until the self-locking shallow teeth 22 are separated from the shallow tooth bosses 23, at the moment, the thin wall 18 easy to deform loses supporting force, so that the deformation capability of the thin wall is not limited, the user continues to apply force to the holding plate 10, the adjusting slide block 9 can be controlled to slide, after the sliding adjustment of the adjusting slide block 9 is completed, the self-locking supporting block 21 is controlled to reset until the self-locking shallow teeth 22 abut against the shallow tooth bosses 23, the deformation capability of the thin wall 18 easy to deform can be limited, and the locking of the sliding capability of the adjusting slide block 9 is realized; to sum up, this application realizes the locking to its sliding capacity through addding the auto-lock kicking block under the prerequisite that does not influence adjusting block 9 sliding resistance, avoids the not good problem of limit structure restriction effect to take place.

In order to facilitate the resetting of the self-locking supporting block 21, as shown in fig. 5, a resetting compression spring 24 is respectively padded between the two ends of the self-locking supporting block 21 and the two ends of the inner wall of the adjusting slide block 9, so that the self-locking supporting block 21 is pushed by the resetting compression spring 24 to realize the automatic resetting of the self-locking supporting block 21.

The specific embodiments are only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a hardness adjustable cushion structure, includes cushion base (1), sets up in hardness adjusting pad (2) of cushion base (1) to and the cover is located contact surface cushion (3) of hardness adjusting pad (2), hardness adjusting pad (2) run through and are provided with centre bore (4), hardness adjusting pad (2) use centre bore (4) to cut apart into a plurality of elastic deformation portion (5) as the center, and are a plurality of the lower surface of elastic deformation portion (5) uses centre bore (4) to encircle as the center and is provided with and tightens up atress portion (6), it is equipped with disc spring billet (7) to tighten up atress portion (6) cover, its characterized in that: cushion base (1) is provided with regulation stroke groove (8), it is connected with adjusting block (9) to adjust stroke groove (8) and slide, it connects to be provided with haulage rope (16) between adjusting block (9) and disc spring billet (7) the outermost end, adjusting block (9) are connected with and hold between the fingers board (10), be provided with limit structure between regulation stroke groove (8) and adjusting block (9).

2. The cushion structure with adjustable hardness according to claim 1, wherein: the lower surface symmetry of hardness adjusting pad (2) is provided with two protruding seats (12), two elastic support strip (13) are erect in protruding seat (12), elastic support strip (13) are in the below of centre bore (4).

3. The cushion structure with adjustable hardness according to claim 2, wherein: undertake two of both sides deformation the lower surface of elastic deformation portion (5) is provided with gluey piece (14) in being close to centre bore (4) department, glue piece (14) and elastic support strip (13) butt cooperation.

4. The cushion structure with adjustable hardness according to claim 1, wherein: the tensioning stress parts (6) are arc-shaped, the tensioning stress parts (6) are annularly surrounded the central hole (4), and the bottom ends of the tensioning stress parts (6) are provided with outwards-folded rods (15).

5. The cushion structure with adjustable hardness according to claim 1, wherein: cushion base (1) fixed mounting has conduit (17), conduit (17) guide haulage rope (16) both ends are connected with adjusting slider (9) and disc spring billet (7) respectively.

6. The cushion structure with adjustable hardness according to claim 1, wherein: the adjusting slide block (9) is arranged in a hollow mode and provided with two thin walls (18) easy to deform, and the limiting structure comprises locking convex blocks (19) arranged on the outer sides of the thin walls (18) easy to deform and locking notch openings (20) arranged at equal intervals along the groove walls of the adjusting stroke grooves (8).

7. The cushion structure with adjustable hardness according to claim 6, wherein: adjusting slide and being connected with auto-lock spacer (21) between slider (9), hold between the fingers board (10) and auto-lock spacer (21) bolt fastening, auto-lock spacer (21) both sides have auto-lock shallow tooth (22), two easy deformation thin wall (18) inside wall center is provided with shallow tooth boss (23) with auto-lock shallow tooth (22) complex.

8. The cushion structure with adjustable hardness according to claim 7, wherein: and reset compression springs (24) are respectively arranged between the two ends of the self-locking supporting block (21) and the two ends of the inner wall of the adjusting slide block (9).