Seat with adjustable cushion hardness

Abstract

The utility model discloses a seat capable of adjusting the hardness of a cushion, and aims to solve the technical problems that the hardness of the cushion of the seat in the prior art cannot be adjusted, people with different weights and body types have different requirements on the hardness of the cushion, the cushion with the hardness not adjustable can cause part of users to feel uncomfortable, and the use experience is reduced. Comprising two parallel supporting plates, a fixing plate is fixedly arranged between the two supporting plates, a seat plate frame is fixedly arranged at the top of the fixing plate, a connecting plate is arranged on the seat plate frame, sliding plates are fixedly arranged at the bottoms of the two opposite sides of the connecting plate, and mounting cavities are formed in the two opposite sides of the seat plate frame; the two sliding plates are arranged in the two mounting cavities in a sliding mode respectively, buffering assemblies used for buffering the two sliding plates are arranged in the two mounting cavities respectively, and an adjusting assembly used for adjusting the buffering force of the connecting plate is arranged on the seat plate frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair processing technical field, concretely relates to a seat of adjustable cushion softness. BACKGROUND

[0002] The sofa chair usually refers to single sofa, refers to the sofa designed for single person use, it combines the comfortable characteristics of sofa and the volume characteristics of chair. Compared with the sofa for many people, the sofa chair is more compact, is suitable for individual use, is often seen in home environment, office rest area, public rest room and various places.

[0003] A kind of seat in prior art, such as authorized announcement number for "CN221430711U", patent name "a zero gravity sofa chair" utility model patent document discloses a seat, including seat, seat is rotatably connected with backrest and foot pad by pivot, the side of seat is fixedly installed with armrest;Folding and unfolding assembly, folding and unfolding assembly includes transmission shaft rotatably connected in the side of seat, the both ends of transmission shaft are coaxially fixedly connected with first worm, the one end of first worm close to backrest is coaxially fixedly connected with first hand wheel;First worm wheel is engaged with first worm respectively with the one end of pivot coaxially fixedly connected and first worm wheel.

[0004] The softness of the cushion in the above patent document cannot be adjusted, people of different weights and sizes have different needs for the softness of the cushion, and the cushion with unadjustable softness can cause some users to feel uncomfortable and reduce the use experience. UTILITY MODEL CONTENT

[0005] The utility model aims at the deficiency of prior art, proposes a seat of adjustable cushion softness, to solve the technical problem that the softness of the cushion of the seat of prior art mentioned in background art cannot be adjusted, people of different weights and sizes have different needs for the softness of the cushion, and the cushion with unadjustable softness can cause some users to feel uncomfortable and reduce the use experience.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] A seat of adjustable cushion softness, including two mutually parallel support plates, fixed plate is fixed between two support plates, seat plate frame is fixed on the top of fixed plate, connecting plate is equipped on seat plate frame, sliding plate is fixed on the bottom of both ends of connecting plate close to support plate, installation cavity is set up on the both sides of seat plate frame away from each other, two sliding plates are respectively slidably arranged in two installation cavities, buffer assembly for giving two sliding plates buffer is respectively arranged in two installation cavities, adjusting assembly for adjusting the buffer force of connecting plate is arranged on seat plate frame.

[0008] Working principle:

[0009] When the connecting plate is subjected to external force, the connecting plate pushes the sliding plate to slide into the mounting cavity, the buffer assembly in the mounting cavity can provide certain buffer for the moved sliding plate, and the instantaneous hard contact when the user sits on the connecting plate is reduced, when the user needs to adjust the hardness of the cushion, the user can adjust the moving distance of the connecting plate towards the seat plate frame through the adjusting assembly, so as to adjust the hardness of the cushion.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] First, the buffer assembly is provided, the buffer assembly can provide certain buffer force for the connecting plate subjected to pushing, the instantaneous hard contact when the user sits is reduced, and the comfort is improved.

[0012] Second, the adjusting assembly is provided, the moving distance of the connecting plate towards the seat plate frame can be adjusted through the adjusting assembly, so that the buffer of the buffer assembly to the connecting plate is reduced by changing the vertical distance of the connecting plate. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model embodiment;

[0014] Figure 2 It is an assembly structure schematic view of the seat plate frame and the adjusting plate;

[0015] Figure 3 It is an assembly structure sectional view schematic view of the seat plate frame and the sliding plate;

[0016] Figure 4 It is an assembly structure schematic view of the connecting plate and the sliding plate;

[0017] Figure 5 It is Figure 1 The enlarged sectional view structure schematic view of the middle A;

[0018] Explanation of reference numerals: support plate 1, fixed plate 2, seat plate frame 3, connecting plate 4, sliding plate 5, mounting cavity 6, fixed rod 7, spring 8, mounting plate 9, guide rod 10, adjusting plate 11, upper protruding block 12, lower protruding block 13, limiting bin 14, sliding block 15, screw rod 16, motor 17, rotating shaft 18, driving wheel 19, driving belt 20, recess 21, air bag 22, connecting pipe 23, air pump 24, soft package layer 25. DETAILED DESCRIPTION

[0019] The technical scheme in the utility model will be further explained in combination with the drawings and embodiments.

[0020] Embodiment:

[0021] For example Figure 1 And Figure 3As shown, a seat with adjustable cushion hardness, comprising two mutually parallel support plates 1, two support plates 1 between the fixed plate 2 is provided, the fixed plate 2 top fixed seat plate frame 3, seat plate frame 3 is provided with a connecting plate 4, the connecting plate 4 is close to the bottom of the two ends of the support plate 1 is fixed with a sliding plate 5, seat plate frame 3 away from both sides are provided with mounting cavity 6, two sliding plate 5 is respectively provided in two mounting cavity 6, two mounting cavity 6 is respectively provided with a buffer assembly for giving two sliding plate 5 buffer, buffer assembly comprises a plurality of fixed rod 7 and a plurality of springs 8, a plurality of fixed rod 7 bottom is fixed on the inner wall of the mounting cavity 6 bottom, the sliding plate 5 bottom fixed with mounting plate 9, mounting plate 9 is provided in the mounting cavity 6 and the mounting plate 9 sliding through a plurality of fixed rod 7, a plurality of springs 8 are respectively provided on the outer circle of a plurality of fixed rod 7 and a plurality of springs 8 both ends are respectively connected with the mounting plate 9 bottom and the mounting cavity 6 bottom inner wall, the connecting plate 4 is pushed by the extrusion sliding plate 5 sliding plate 5 push mounting plate 9 in the mounting cavity 6 movement, mounting plate 9 along the fixed rod 7 sliding and compression spring 8, the deformation of spring 8 provides a buffer force.

[0022] As shown in Figure 1 and Figure 2 , the seat plate frame 3 is provided with an adjusting assembly for adjusting the connecting plate 4 buffer force, the adjusting assembly comprises two guide rods 10, adjusting plate 11, a plurality of upper convex blocks 12 and a plurality of lower convex blocks 13, two guide rods 10 is fixed on the seat plate frame 3 and the two guide rods 10 parallel to each other, the adjusting plate 11 is respectively connected to the two guide rods 10 by sliding away from both ends, the guide rod 10 can be convenient for adjusting plate 11 in the seat plate frame 3 sliding, and the guide rod 10 can provide a certain guide force, a plurality of upper convex blocks 12 are fixed on the bottom of the connecting plate 4 and the distance between the two adjacent upper convex blocks 12 is equal, a plurality of lower convex blocks 13 are fixed on the top of the adjusting plate 11 and the distance between the two adjacent lower convex blocks 13 is equal, the adjusting plate 11 is used to move a plurality of lower convex blocks 13 and make the top of a plurality of lower convex blocks 13 and a plurality of upper convex blocks 12 bottom abutment, adjusting plate 11 along the guide rod 10 movement makes the lower convex block 13 and the upper convex block 12 on the bottom of the connecting plate 4 abutment, thereby limiting the vertical displacement range of the sliding plate 5, and then changing the compression amount of the spring 8.

[0023] As shown in Figure 1 and Figure 5As shown, the fixing plate 2 is fixed with a limiting bin 14, the adjusting plate 11 is fixed with a sliding block 15 at the bottom, the limiting bin 14 is rotatably provided with a screw rod 16, one end of the screw rod 16 is slidably arranged through the limiting bin 14 and extends outward, the sliding block 15 is slidably arranged in the limiting bin 14 and is screwed with the screw rod 16, the fixing plate 2 is fixed with a motor 17 at the bottom, the motor 17 is fixed with a rotating shaft 18 at the output end, the rotating shaft 18 and the end of the screw rod 16 are both fixed with a driving wheel 19, the two driving wheels 19 are sleeved with a driving belt 20, the adjusting plate 11 is driven by the screw rod 16, the screw rod 16 drives the driving wheel 19 and the driving belt 20 through the motor 17, so as to realize electric adjustment, the motor 17 is driven by a lithium battery, which is prior art and will not be described in detail here.

[0024] As shown in Figure 1 and Figure 4 , the connecting plate 4 is provided with a serpentine groove 21 at the top, the groove 21 is provided with an air bag 22 matched with the groove 21, one end of the air bag 22 is connected with a connecting pipe 23 in communication, the fixing plate 2 is fixed with an air pump 24 at the bottom, the output end of the air pump 24 is connected with the connecting pipe 23 in communication, the connecting plate 4 is provided with a serpentine groove 21 at the top and an air bag 22 matched with the groove 21, the air pump 24 inflates the air bag 22 through the connecting pipe 23, which assists in adjusting the hardness of the cushion, the air pump 24 is an electric air pump 24 driven by a lithium battery, which is prior art and will not be described in detail here.

[0025] As shown in Figure 1 , the connecting plate 4 and the seat plate frame 3 are sleeved with a soft layer 25, the connecting plate 4 and the seat plate frame 3 are covered with a soft layer 25, which improves comfort.

[0026] Working principle:

[0027] In the initial state, when the user sits down, the connecting plate 4 is pressed downward, driving the two side sliding plates 5 to slide along the fixed rods 7 in the installation cavities 6, the mounting plate 9 compresses the spring 8 sleeved on the fixed rod 7, the spring 8 is deformed to absorb impact force and provide initial buffering, at this time, the lower protrusion 13 of the adjusting plate 11 is not in complete contact with the upper protrusion 12 of the connecting plate 4, and the spring 8 can be freely compressed.

[0028] When the user needs to adjust the softness of the cushion, the user starts the motor 17, drives the screw 16 to rotate through the driving wheel 19 and the driving belt 20, the screw 16 drives the slider 15 in the limiting bin 14 to move transversely, thereby pushing the adjusting plate 11 to slide along the guide rod 10, when the adjusting plate 11 moves, the lower protrusion 13 on the top thereof gradually aligns with and abuts against the upper protrusion 12 on the bottom of the connecting plate 4, the transverse position of the lower protrusion 13 determines the contact point when the upper protrusion 12 is pressed down, soft mode: the adjusting plate 11 moves to the far end, the lower protrusion 13 is misaligned with the upper protrusion 12, the spring 8 can be fully compressed when the connecting plate 4 is pressed down, the buffer stroke is long, and the softness is high, hard mode: the adjusting plate 11 moves to the near end, the lower protrusion 13 is in close abutment with the upper protrusion 12, the pressing-down amplitude of the connecting plate 4 is limited, the compression amount of the spring 8 is reduced, and the support rigidity is enhanced.

[0029] When further adjustment of the softness of the cushion is needed, the user starts the air pump 24, fills the air bag 22 in the serpentine groove 21 with air through the connecting pipe 23, the air bag 22 expands to fill the space of the groove 21, increases the elasticity of the surface layer of the cushion, and further improves the softness, when the air is released, the air bag 22 contracts, the hardness of the surface layer of the cushion increases, and the mechanical adjustment of the spring 8 is complementary.

[0030] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A seat with adjustable firmness of the seat cushion, characterized in that, The utility model provides a kind of adjustable seat plate frame, including two mutually parallel support plates (1), fixed plate (2) is fixed between two support plates (1), seat plate frame (3) is fixed on the top of fixed plate (2), connecting plate (4) is equipped on seat plate frame (3), sliding plate (5) is fixed on the bottom of two ends of connecting plate (4) close to support plate (1), installation cavity (6) is set up on the side of seat plate frame (3) away from each other, two sliding plates (5) are respectively slidably arranged in two installation cavities (6), and buffer assembly for giving two sliding plates (5) buffering is respectively arranged in two installation cavities (6), and adjusting assembly for adjusting the buffering force of connecting plate (4) is equipped on seat plate frame (3).

2. The seat of claim 1, wherein: The buffer assembly includes a plurality of fixed rods (7) and a plurality of springs (8), the bottom of the plurality of fixed rods (7) is fixed on the inner wall of the bottom of the installation cavity (6), the bottom of the sliding plate (5) is fixedly connected with the mounting plate (9), the mounting plate (9) is slidably arranged in the installation cavity (6) and the mounting plate (9) slides through the plurality of fixed rods (7), and the plurality of springs (8) are respectively sleeved on the outer circle of the plurality of fixed rods (7) and the two ends of the plurality of springs (8) are respectively fixedly connected with the bottom of the mounting plate (9) and the inner wall of the bottom of the installation cavity (6).

3. The seat of claim 1, wherein: The adjusting assembly includes two guide rods (10), an adjusting plate (11), a plurality of upper protrusions (12) and a plurality of lower protrusions (13), the two guide rods (10) are fixedly connected with the seat plate frame (3) and the two guide rods (10) are parallel to each other, the adjusting plate (11) is slidably connected with the two guide rods (10) at the two ends away from each other, the plurality of upper protrusions (12) are fixedly connected with the bottom of the connecting plate (4) and the distance between the two adjacent upper protrusions (12) is equal, the plurality of lower protrusions (13) are fixedly connected with the top of the adjusting plate (11) and the distance between the two adjacent lower protrusions (13) is equal, and the adjusting plate (11) is used for moving the plurality of lower protrusions (13) and making the top of the plurality of lower protrusions (13) abut with the bottom of the plurality of upper protrusions (12) one by one.

4. The seat of claim 3, wherein: The limiting bin (14) is fixedly connected with the fixed plate (2), the sliding block (15) is fixedly connected with the bottom of the adjusting plate (11), the screw rod (16) is rotatably arranged in the limiting bin (14) and the one end of the screw rod (16) slides through the limiting bin (14) and extends outward, and the sliding block (15) is slidably arranged in the limiting bin (14) and the sliding block (15) is screw-connected with the screw rod (16).

5. The seat of claim 4, wherein: The motor (17) is fixedly connected with the bottom of the fixed plate (2), the output end of the motor (17) is fixedly connected with the rotating shaft (18), the rotating shaft (18) and the end of the screw rod (16) are fixedly connected with the driving wheel (19), and the driving belt (20) is sleeved on the outer circle of the two driving wheels (19).

6. The seat of claim 1, wherein: The connecting plate (4) is provided with a serpentine groove (21) on the top, the groove (21) is provided with an air bag (22) matched with the groove (21), one end of the air bag (22) is connected with a connecting pipe (23) in a lead-through mode, and the bottom of the fixed plate (2) is fixedly provided with an air pump (24), and the output end of the air pump (24) is connected with the connecting pipe (23) in a lead-through mode.

7. The seat of claim 1, wherein: The connecting plate (4) and the seat plate frame (3) are sleeved with a soft package layer (25).

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