CN110960018B

CN110960018B - Spring sofa capable of preventing cushion elasticity from weakening

Info

Publication number: CN110960018B
Application number: CN201911332135.7A
Authority: CN
Inventors: 赵加来; 王大同
Original assignee: Beijing Dawei Furniture Group Co Ltd
Current assignee: Beijing Dawei Furniture Group Co., Ltd
Priority date: 2019-12-21
Filing date: 2019-12-21
Publication date: 2021-08-10
Anticipated expiration: 2039-12-21
Also published as: CN110960018A

Abstract

The invention discloses a spring sofa capable of preventing cushion elasticity from weakening, which comprises a base, wherein the top of the base is fixedly connected with a support, the top of the support is fixedly connected with a direction limiting rod, the top of the direction limiting rod is rotatably connected with a bearing rod, a supporting wheel is arranged below the cushion, the surface of the supporting wheel is fixedly connected with an inflation cylinder, the interior of the inflation cylinder is slidably connected with an induction rod, the surface of the supporting wheel is fixedly connected with an air spring between the two inflation cylinders, the top of the base is fixedly connected with a fixed frame on the right side of the support, the left side of the fixed frame is rotatably connected with a ratchet wheel, the surface of the ratchet wheel is rotatably connected with a limiting rod, and the left side of the ratchet wheel is meshed with a supporting plate. This can prevent spring sofa that cushion elasticity weakens uses through the cooperation of backup pad and ratchet to reach and prevent the effect that cushion resilience performance weakens in long-term the use.

Description

Spring sofa capable of preventing cushion elasticity from weakening

Technical Field

The invention relates to the technical field of furniture, in particular to a spring sofa capable of preventing the elasticity of a cushion from weakening.

Background

The sofa is one of soft furniture, is a multi-seat seating furniture with soft cushions, has armrests on two sides, is originated from western countries, is introduced into Asia, and gradually becomes one of the key points of western decoration or modern home design, the origin of the sofa can be traced back to ancient Egypt about 2000 before the first Gongyuan, but the soft package sofa with the real meaning appears at the end of the sixteen century to the beginning of the seventeen century.

In order to guarantee the comfort of sofa, can set up buffer spring under the sofa cushion when producing the sofa, guarantee with this that the cushion can the effectual parcel person, thereby reach good comfortable effect, but the sofa is in long-term use, the spring of cushion below constantly is compressed, even plastic deformation also can take place for high-quality spring again, consequently, the resilience volume of spring can reduce gradually, this in the past in the long run, the elastic deformation volume of spring reduces gradually, the resilience that leads to the sofa cushion weakens, and then leads to the comfort to reduce.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the spring sofa capable of preventing the elasticity of the cushion from weakening, which has the advantages of preventing the resilience performance of the cushion from weakening in long-term use and the like, and solves the problem that the resilience force of the cushion is weakened because the resilience force of the spring is gradually weakened under the cushion in long-term use of the existing sofa.

(II) technical scheme

In order to achieve the purpose of preventing the resilience performance of the cushion from being weakened in long-term use, the invention provides the following technical scheme: a spring sofa capable of preventing cushion elasticity from weakening comprises a base, wherein a support is fixedly connected to the top of the base, a direction limiting rod is fixedly connected to the top of the support, a bearing rod is rotatably connected to the top of the direction limiting rod, a connecting rod is rotatably connected to the surface of the bearing rod, an inclined rod is slidably connected to the upper portion of the bearing rod, a single rotating ring is fixedly connected to one side, away from the bearing rod, of the inclined rod, a track ring is arranged inside the single rotating ring, a pressing rod is slidably connected to the inside of the track ring, a torsion spring is rotatably connected to the bottom of the pressing rod, a cushion is rotatably connected to the top of the pressing rod, a supporting wheel is arranged below the cushion, an air sealing ring is arranged inside the supporting wheel, an inflation cylinder is fixedly connected to the surface of the supporting wheel, an induction rod is slidably connected to the inside of the inflation cylinder, and an air spring is fixedly connected between the two inflation, the top of base just is located the right side fixedly connected with mount of support, the left side of mount is rotated and is connected with the ratchet, the surperficial rotation of ratchet is connected with the gag lever post, the left side meshing of ratchet is connected with the backup pad.

Preferably, the supporting wheel is coaxial with the inner air sealing ring, the single-turn ring and the track ring.

Preferably, a return spring is arranged in the inflation cylinder.

Preferably, the surface of the supporting plate is provided with inclined teeth which are mutually hooked with the teeth on the surface of the ratchet wheel.

Preferably, the height of the side of the sensing rod far away from the supporting wheel is positioned on the same horizontal line with the maximum compression amount of the air spring.

Preferably, four stop levers are arranged on the surface of the torsion spring, so that the torsion spring can be compressed each time.

Preferably, the inner right wall of the single rotating ring is provided with a clamping rod, the blocking rod is clamped, and the torsion spring is prevented from being reset anticlockwise.

Preferably, the surface of the inflation cylinder is provided with a one-way valve.

(III) advantageous effects

Compared with the prior art, the invention provides the spring sofa capable of preventing the elasticity of the cushion from weakening, which has the following beneficial effects:

1. this can prevent spring sofa that cushion elasticity weakens uses through the cooperation of backup pad with the ratchet, through the tensile of ratchet to the backup pad, and the plastic deformation when the compression is offset to the tensile plastic deformation of production, and then prevents air spring's resilience performance and weakens to reached and prevented the effect that cushion resilience performance weakens in long-term the use.

2. The spring sofa capable of preventing the cushion from being weakened in elasticity is used by matching the inflation cylinder with the air sealing ring, and in long-term use of the air spring, along with the deepening of the fatigue degree of a spring material, the elastic coefficient of the air spring begins to be reduced, so that the resilience of the spring is weakened, and the compressed degree of the spring is deepened.

Drawings

FIG. 1 is a front cross-sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of the mechanism for connecting the ratchet wheel according to the present invention;

FIG. 3 is an enlarged view of the joint between the structural support plate and the seat cushion according to the present invention;

FIG. 4 is an enlarged view of the internal mechanism of the single turn structure of the present invention;

FIG. 5 is a schematic view of the junction of the structural brace and the single turn of the present invention;

FIG. 6 is an enlarged view of the internal mechanism of the inflation cylinder in the present invention;

FIG. 7 is an enlarged view of the junction of the structural brace and the single turn of the present invention;

FIG. 8 is an enlarged view of the structural brace of the present invention engaged with a single turn;

FIG. 9 is a schematic view of the structure of the present invention showing the latch lever connected to the stop lever.

In the figure: 1. the device comprises a base, 2, a support, 3, a supporting wheel, 4, a fixing frame, 5, a limiting rod, 6, a ratchet wheel, 7, a supporting plate, 8, an air spring, 9, a cushion, 10, a pressing rod, 11, an air sealing ring, 12, an inflation cylinder, 13, an induction rod, 14, a single-turn ring, 15, a track ring, 16, a torsion spring, 17, a connecting rod, 18, a limiting rod, 19, a bearing rod, 20 and an inclined rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, a spring sofa capable of preventing a cushion from being weakened in elasticity comprises a base 1, wherein the base 1 is made of stainless steel, so that equipment can be effectively prevented from being corroded, the service life of the equipment is greatly prolonged, the production cost is reduced, and the spring sofa plays an indispensable role for enterprises, a bracket 2 is fixedly connected to the top of the base 1, a direction limiting rod 18 is fixedly connected to the top of the bracket 2, a receiving rod 19 is rotatably connected to the top of the direction limiting rod 18, a connecting rod 17 is rotatably connected to the surface of the receiving rod 19, an inclined rod 20 is slidably connected above the receiving rod 19, a single rotating ring 14 is fixedly connected to one side of the inclined rod 20, which is far away from the receiving rod 19, a clamping rod is arranged on the inner right wall of the single rotating ring 14, the blocking rod is clamped, the torsion spring 16 is prevented from being reset anticlockwise, a track ring 15 is arranged inside the single rotating ring 14, and a compression rod 10 is slidably connected to the inside of the track ring 15, the bottom of a pressure lever 10 is rotatably connected with a torsion spring 16, the surface of the torsion spring 16 is provided with four stop levers, the effect of compressing the torsion spring 16 every time is achieved, the top of the pressure lever 10 is rotatably connected with a cushion 9, a supporting wheel 3 is arranged below the cushion 9, the supporting wheel 3 is made of stainless steel, equipment can be effectively prevented from being corroded, the service life of the equipment is greatly prolonged, the production cost is reduced, and an indispensable effect is brought to an enterprise, the supporting wheel 3 is coaxial with an internal gas sealing ring 11, a single rotating ring 14 and a track ring 15, the internal part of the supporting wheel 3 is provided with the gas sealing ring 11, the surface of the supporting wheel 3 is fixedly connected with an inflation cylinder 12, the surface of the inflation cylinder 12 is provided with a one-way valve, a return spring is arranged in the inflation cylinder 12, the internal part of the inflation cylinder 12 is slidably connected with an induction rod 13, the height of one side of the induction rod 13, far away from the supporting wheel 3, and, the surface of supporting wheel 3 just is located fixedly connected with air spring 8 between two inflatable cylinders 12, and the top of base 1 just is located the right side fixedly connected with mount 4 of support 2, and the left side of mount 4 is rotated and is connected with ratchet 6, and ratchet 6's surface is rotated and is connected with gag lever post 5, and ratchet 6's left side meshing is connected with backup pad 7, and backup pad 7's surface is provided with the tooth of slope, links up with each other with the tooth on ratchet 6 surface.

After a person sits on the sofa, the cushion 9 is compressed downwards, and further the air spring 8 below is compressed, the compression rod 10 can compress the torsion spring 16 downwards, and the torsion spring 16 slides to the middle part of the right side of the track in the track ring 15, the torsion spring 16 is clamped by the clamping block, as shown in figure 9, when the person leaves the sofa, the air spring 8 rebounds to jack up the cushion 9 upwards, the cushion 9 drives the compression rod 10 to restore to the initial track position upwards, but because the torsion spring 16 is clamped by the clamping rod arranged on the single rotary ring 14, and the single rotary ring 14 is clamped by the inclined rod 20 on the surface through the bearing rod 19 as shown in figure 8, the torsion spring 16 can only rotate clockwise and cannot rotate anticlockwise, therefore, when the upper cushion 9 is jacked to the top by the air spring 8, the teeth at the bottom of the cushion 9 can not fix the supporting plate 7, and the supporting wheel 3 is coaxial with the single rotary ring 14, therefore the whole supporting wheel 3 can be driven by the torsion spring 16, a clockwise rotation takes place and the support wheel 3 rotates a quarter of a circle therewith, since the torsion spring 16 is pressed by the press rod 10.

When the supporting wheel 3 rotates, the supporting plate 7 on the right side rotates in a meshed manner with the ratchet wheel 6, so that the ratchet wheel 6 rotates anticlockwise, the ratchet wheel 6 rotates anticlockwise to cause the limiting rod 5 to deflect rightwards, the ratchet wheel 6 is pushed rightwards, in the process, the inclined teeth on the surface of the ratchet wheel 6 are hooked with the inclined teeth on the side surface of the supporting plate 7 and cannot be separated instantaneously, therefore, the air spring 8 is pulled rightwards, the tensile plastic deformation of the air spring 8 can offset the compressed plastic deformation, the weakening of the resilience force of the air spring 8 is prevented, after that, the fixing degree of the inclined teeth on the surface of the ratchet wheel 6 and the inclined teeth on the side surface of the supporting plate 7 is maximum, the separation starts, finally, the air spring 8 on the left side rotates to the lower part, the supporting wheel 3 continuously rotates along with the continuous non-use of the sofa, so that each air spring 8 can, thereby preventing the resilience of the air spring 8 from being weakened, and achieving the effect of preventing the resilience of the cushion 9 from being weakened in long-term use.

In the long-term use of the air spring 8, as the fatigue degree of the spring material deepens, the elastic coefficient of the air spring 8 begins to decrease, the resilience of the spring is weakened, and the compression degree of the spring is deepened, because the height of one side, away from the supporting wheel 3, of the sensing rod 13 and the maximum compression amount of the air spring 8 are located on the same horizontal line, when the elastic coefficient of the air spring 8 is reduced, the sensing rod 13 is compressed by the cushion 9, the inflation cylinder 12 is further compressed, the air in the inflation cylinder 12 is inflated to the space between the air sealing ring 11 and the supporting wheel 3, and the space is communicated with the air spring 8, so that the air is inflated into the air spring 8, the elastic coefficient of the air spring 8 is increased, and the effect of preventing the spring from being worn to cause the weakening of the resilience is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A spring sofa capable of preventing cushion elasticity from weakening comprises a base (1), and is characterized in that: the top of the base (1) is fixedly connected with a support (2), the top of the support (2) is fixedly connected with a direction limiting rod (18), the top of the direction limiting rod (18) is rotatably connected with a bearing rod (19), the surface of the bearing rod (19) is rotatably connected with a connecting rod (17), an inclined rod (20) is slidably connected above the bearing rod (19), one side of the inclined rod (20) far away from the bearing rod (19) is fixedly connected with a single rotating ring (14), a track ring (15) is arranged inside the single rotating ring (14), a pressure rod (10) is slidably connected inside the track ring (15), a torsion spring (16) is rotatably connected at the bottom of the pressure rod (10), the top of the pressure rod (10) is rotatably connected with a cushion (9), a supporting wheel (3) is arranged below the cushion (9), a gas sealing ring (11) is arranged inside the supporting wheel (3), the surface fixed connection of supporting wheel (3) aerifys jar (12), the inside sliding connection that aerifys jar (12) has inductive pole (13), the surface of supporting wheel (3) just is located fixedly connected with air spring (8) between two aerifys jar (12), the top of base (1) just is located the right side fixedly connected with mount (4) of support (2), the left side of mount (4) is rotated and is connected with ratchet (6), the surface of ratchet (6) is rotated and is connected with gag lever post (5), the left side meshing of ratchet (6) is connected with backup pad (7), the surface of backup pad (7) is provided with the tooth of slope, colludes with the tooth on ratchet (6) surface each other and links to each other, supporting wheel (3) are coaxial with inside gas sealing ring (11), single commentaries on classics circle (14), track circle (15), the surface of torsion spring (16) is equipped with four pin, the inner right wall of the single rotating ring (14) is provided with a clamping rod.

2. The spring sofa of claim 1, wherein the cushion is prevented from decreasing in elasticity, and the spring sofa further comprises: a return spring is arranged in the inflation cylinder (12).

3. The spring sofa of claim 1, wherein the cushion is prevented from decreasing in elasticity, and the spring sofa further comprises: the height of one side of the induction rod (13) far away from the supporting wheel (3) and the maximum compression amount of the air spring (8) are positioned on the same horizontal line.

4. The spring sofa of claim 1, wherein the cushion is prevented from decreasing in elasticity, and the spring sofa further comprises: the surface of the inflation cylinder (12) is provided with a one-way valve.