Sofa hardness adjusting mechanism

Abstract

The utility model belongs to the field of furniture, and particularly relates to a sofa hardness adjusting mechanism which comprises a support, and a sponge cushion is mounted above the support. A base is connected to the top of the support in a bolted mode, the sponge mat is located at the top of the base, a sealing sleeve is fixedly connected to the top of the base, the sponge mat is located in the sealing sleeve, a cavity is formed in the base, the sealing sleeve communicates with the cavity, and a hose is fixedly connected to the bottom of the cavity. During use, the position of the adjusting piston in the piston cylinder is adjusted, air in the base can be extracted through the hose, then the air pressure in the sealing sleeve is adjusted, and therefore the bulkiness of the sponge cushion is adjusted. Therefore, the function of adjusting the hardness of the sofa cushion is realized, and the requirements of different users on the hardness of the sofa cushion can be conveniently met.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture field, concretely is a sofa soft and hard adjusting mechanism. BACKGROUND

[0002] The sofa is a kind of furniture, usually placed in living room, living room and other areas, for sitting and resting, it is usually composed of frame, filler and fabric.

[0003] At present in the prior art, the seat cushion of sofa is filled with sponge pad, the surface of sponge pad is covered with sofa bushing, the sponge pad filled inside can improve softness and corresponding elasticity, to improve the comfort of user, wherein the softness of sponge pad directly determines the softness of sofa seat cushion.

[0004] But in use, the existing sofa cannot adjust the softness of sofa seat cushion, it is inconvenient to meet the needs of different users to the softness of seat cushion;Therefore, aiming at the above problems, a sofa softness adjusting mechanism is provided. INVENTION CONTENTS

[0005] In order to make up for the deficiency of prior art, solve at least one technical problem proposed in background art, the utility model provides a sofa softness adjusting mechanism.

[0006] The technical scheme adopted by the utility model to solve its technical problems is: the utility model discloses a sofa softness adjusting mechanism, including support, the upper portion of support is installed with sponge pad;The top of support is hinged with base, and the top of base is fixedly connected with sealing sleeve, and the sponge pad is located in the inside of sealing sleeve, and the inside of base is provided with cavity, and the sealing sleeve is communicated with cavity, and the bottom of cavity is fixedly connected with hose, and the bottom of hose is provided with suction assembly that can extract air in the inside of base, by the above setting, the air pressure in the inside of sealing sleeve is adjusted, to adjust the bulkiness of sponge pad, to realize the function of adjusting the softness of sofa seat cushion, so that the needs of different users to the softness of sofa seat cushion can be met.

[0007] Preferably, the suction assembly includes a piston cylinder and an adjusting piston, the piston cylinder is detachably installed at one end of the hose away from the base, the rodless cavity of the piston cylinder is communicated with the hose, the adjusting piston is slidably connected in the inside of the piston cylinder, and the piston cylinder is fixedly connected with a support.

[0008] Preferably, the end of the piston cylinder is fixedly connected with a screw barrel, the inside of the screw barrel is threadedly connected with a screw rod, the end of the screw rod is inserted into the inside of the piston cylinder and is rotationally connected with the adjusting piston, the end of the screw rod is fixedly connected with a hand wheel, the screw rod is rotated, the screw rod is driven to move under the thread action of the screw barrel, the screw rod and the adjusting piston are driven to move, the adjusting piston slides in the piston cylinder, and the position of the adjusting piston can be conveniently and accurately adjusted.

[0009] Preferably, the inside of the top of the cavity is fixedly connected with a uniform distribution plate, a plurality of air permeable holes are formed in the uniform distribution plate, and the sponge pad is located on the top of the uniform distribution plate.

[0010] Preferably, the end of the piston cylinder is fixedly connected with a screw barrel, the inside of the screw barrel is threadedly connected with a screw rod, the end of the screw rod is inserted into the inside of the piston cylinder and is rotationally connected with the adjusting piston, the end of the screw rod is fixedly connected with a hand wheel, the screw rod is rotated, the screw rod is driven to move under the thread action of the screw barrel, the screw rod and the adjusting piston are driven to move, the adjusting piston slides in the piston cylinder, and the position of the adjusting piston can be conveniently and accurately adjusted.

[0011] Preferably, the end of the piston cylinder is fixedly connected with a screw barrel, the inside of the screw barrel is threadedly connected with a screw rod, the end of the screw rod is inserted into the inside of the piston cylinder and is rotationally connected with the adjusting piston, the end of the screw rod is fixedly connected with a hand wheel, the screw rod is rotated, the screw rod is driven to move under the thread action of the screw barrel, the screw rod and the adjusting piston are driven to move, the adjusting piston slides in the piston cylinder, and the position of the adjusting piston can be conveniently and accurately adjusted.

[0012] The utility model discloses the beneficial effect lies in:

[0013] 1. The utility model discloses a support, base, sponge pad, sealing sleeve, hose, piston cylinder and adjusting piston are set up, when using, the position of adjusting piston in the piston cylinder is adjusted, the air in the inside of base is extracted through the hose, the air pressure in the inside of sealing sleeve is adjusted, the firmness of sofa cushion is adjusted, and the need of different users to the firmness of sofa cushion can be satisfied.

[0014] 2. The utility model discloses a screw barrel and screw rod are set up, when using, the screw rod is rotated, the screw rod is driven to move under the thread action of the screw barrel, the screw rod and the adjusting piston are driven to move, the adjusting piston slides in the piston cylinder, and the position of the adjusting piston can be conveniently and accurately adjusted, and the firmness of sofa cushion can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 The structure schematic view of the present application;

[0017] Figure 2 The structure schematic view of the bracket and the piston cylinder of the present application;

[0018] Figure 3 The structure schematic view of the base of the present application;

[0019] Figure 4 The structure schematic view of the uniform distribution plate of the present application;

[0020] Figure 5 The structure schematic view of the piston cylinder of the present application.

[0021] In the figure: 11, sofa; 12, bracket; 13, base; 14, sponge pad; 15, sealing sleeve; 16, hose; 21, piston cylinder; 22, support; 23, adjusting piston; 31, screw rod; 32, screw cylinder; 33, hand wheel; 41, uniform distribution plate; 42, air hole; 51, connecting pipe; 52, connecting seat; 53, rubber ring; 61, sliding sleeve; 62, scale; 7, magic tape. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0023] The specific embodiments will be given below.

[0024] Please refer to Figures 1-4As shown, a sofa softness adjusting mechanism, including a support 12, a sponge pad 14 is installed above the support 12, a base 13 is bolted to the top of the support 12, the sponge pad 14 is located on the top of the base 13, a sealing sleeve 15 is fixed to the top of the base 13, the sponge pad 14 is located inside the sealing sleeve 15, a cavity is formed in the inside of the base 13, the sealing sleeve 15 is in communication with the cavity, a hose 16 is fixed to the bottom of the cavity, the bottom of the hose 16 is provided with a suction assembly which can suck the air inside the base 13; the suction assembly includes a piston cylinder 21 and an adjusting piston 23, the piston cylinder 21 is detachably installed at one end of the hose 16 away from the base 13, the rodless cavity of the piston cylinder 21 is in communication with the hose 16, the adjusting piston 23 is slidingly connected inside the piston cylinder 21, and the piston cylinder 21 is fixed with a support 22; in use, the support 12 is fixedly installed on the sofa 11, the base 13 is bolted to the support 12, which can be disassembled and replaced, when it is necessary to adjust the softness of the sofa 11 cushion, the position of the adjusting piston 23 in the piston cylinder 21 is adjusted, which will suck the air inside the base 13 through the hose 16, and then adjust the air pressure inside the sealing sleeve 15, so as to adjust the loft of the sponge pad 14, and then realize the function of adjusting the softness of the sofa 11 cushion, so as to meet the needs of different users for the softness of the sofa 11 cushion.

[0025] Further, the end of the piston cylinder 21 is fixed with a screw cylinder 32, the inside of the screw cylinder 32 is threadedly connected with a screw rod 31, the end of the screw rod 31 is inserted into the inside of the piston cylinder 21 and is rotationally connected with the adjusting piston 23, and the end of the screw rod 31 is fixed with a hand wheel 33; in use, the screw rod 31 is rotated, and the screw rod 31 is driven to move under the action of the threads in the screw cylinder 32, so as to make the adjusting piston 23 slide in the piston cylinder 21, so as to conveniently and accurately adjust the position of the adjusting piston 23, so as to conveniently adjust the softness of the sofa 11 cushion for the user.

[0026] Further, the top of the cavity is fixed with a uniform distribution plate 41, a plurality of air holes 42 are arranged on the uniform distribution plate 41, and the sponge pad 14 is located on the top of the uniform distribution plate 41; the support 22 is fixed with a sliding sleeve 61, the end of the screw rod 31 is rotatably connected with a scale 62, the scale 62 penetrates through the sliding sleeve 61 and is slidably connected with the sliding sleeve 61; in use, the uniform distribution plate 41 supports the bottom of the sponge pad 14, the air holes 42 can improve the air pressure uniformity of different areas of the sponge pad 14, and then the uniformity of the loft of different areas of the sponge pad 14 can be improved, the scale 62 is arranged, so that the moving position of the piston 23 can be determined, and then the user can determine the negative pressure value in the base 13 and the loft of the sofa 11 cushion.

[0027] Further, the end of the piston cylinder 21 is rotatably connected with a connecting pipe 51, the connecting pipe 51 is threadedly connected with a connecting seat 52, the connecting seat 52 is internally provided with a rubber ring 53, the end of the connecting seat 52 is fixed with the hose 16, and the connecting pipe 51 is in communication with the rodless cavity of the piston cylinder 21; in use, the connecting pipe 51 is threadedly fixed on the connecting seat 52, the rubber ring 53 is used to improve the sealing effect of the connecting seat 52 and the connecting pipe 51, and the above detachable structure is arranged, so that when the sealing sleeve 15 leaks due to aging after long-term use, it can be conveniently replaced.

[0028] Further, the top of the sealing sleeve 15 is provided with a magic tape 7, so that the user can conveniently install the sofa 11 lining, thereby facilitating the user to use.

[0029] The working principle is that, in use, the support 12 is fixedly installed on the sofa 11, the base 13 is installed on the support 12 through bolts, and the base 13 can be disassembled and replaced. When it is necessary to adjust the softness of the cushion of the sofa 11, the position of the adjusting piston 23 in the piston cylinder 21 is adjusted, air in the base 13 is extracted through the hose 16, the air pressure in the sealing sleeve 15 is adjusted, the loft of the sponge pad 14 is adjusted, and thus the softness of the cushion of the sofa 11 is adjusted. Therefore, the needs of different users for the softness of the cushion of the sofa 11 can be met. The rotating screw rod 31 is rotated, the screw rod 31 is driven to move under the action of the threads in the screw cylinder 32, the screw rod 31 and the adjusting piston 23 are driven to move, the adjusting piston 23 is slid in the piston cylinder 21, and thus the position of the adjusting piston 23 can be conveniently and accurately adjusted. Therefore, the user can conveniently adjust the softness of the cushion of the sofa 11. According to the above arrangement, the uniform plate 41 is supported at the bottom of the sponge pad 14, the air pressure uniformity of different regions of the sponge pad 14 is improved through the plurality of air holes 42, and thus the loft uniformity of different regions of the sponge pad 14 is improved. According to the arrangement of the scale 62, the moving position of the adjusting piston 23 can be conveniently determined, and thus the user can conveniently determine the negative pressure value in the base 13 and the loft of the cushion of the sofa 11. The connecting pipe 51 is fixed on the connecting base 52 through threads, the rubber ring 53 is used to improve the connection and sealing effect of the connecting base 52 and the connecting pipe 51, and the sealing sleeve 15 can be conveniently replaced when the sealing sleeve 15 leaks due to aging after long-time use.

[0030] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The basic principle, main features and advantages of the present application have been shown and described. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only illustrative of the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A sofa firmness adjustment mechanism, comprising a support (12), wherein a sponge pad (14) is mounted on top of the support (12); characterized in that: The top of the bracket (12) is bolted to the base (13), the sponge pad (14) is located on the top of the base (13), the top of the base (13) is fixed to the sealing sleeve (15), the sponge pad (14) is located inside the sealing sleeve (15), the base (13) has a cavity, the sealing sleeve (15) is connected to the cavity, the bottom of the cavity is fixed to the hose (16), and the bottom of the hose (16) is provided with an air extraction component that can extract air from the base (13).

2. The sofa firmness adjustment mechanism according to claim 1, characterized in that: The air extraction assembly includes a piston cylinder (21) and an adjusting piston (23). The piston cylinder (21) is detachably installed at the end of the hose (16) away from the base (13). The rodless chamber of the piston cylinder (21) is connected to the hose (16). The adjusting piston (23) is slidably connected inside the piston cylinder (21). A support (22) is fixedly connected to the piston cylinder (21).

3. The sofa firmness adjustment mechanism according to claim 2, characterized in that: The piston cylinder (21) is fixedly connected to a screw cylinder (32) at its end. The screw cylinder (32) is internally threaded with a screw rod (31). The end of the screw rod (31) is inserted into the piston cylinder (21) and is rotatably connected to the adjusting piston (23). The end of the screw rod (31) is fixedly connected to a handwheel (33).

4. The sofa firmness adjustment mechanism according to claim 2, characterized in that: A uniformly distributed plate (41) is fixed to the inner side wall of the top of the cavity. The uniformly distributed plate (41) has multiple air holes (42). The sponge pad (14) is located on top of the uniformly distributed plate (41).

5. The sofa firmness adjustment mechanism according to claim 3, characterized in that: A sliding sleeve (61) is fixedly connected to the support (22), and a scale (62) is rotatably connected to the end of the screw (31). The scale (62) passes through the sliding sleeve (61) and is slidably connected to it.

6. The sofa firmness adjustment mechanism according to claim 2, characterized in that: The piston cylinder (21) is rotatably connected to a connecting pipe (51), and a connecting seat (52) is threaded onto the connecting pipe (51). A rubber ring (53) is provided inside the connecting seat (52). The end of the connecting seat (52) is fixedly connected to the hose (16). The connecting pipe (51) is connected to the rodless chamber of the piston cylinder (21).

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