CN210330052U

CN210330052U - Waist cushion with adjustable supporting curved surface

Info

Publication number: CN210330052U
Application number: CN201921047227.6U
Authority: CN
Inventors: 张孟笛; 毛惠生; 张书晨; 赵明
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-07
Filing date: 2019-07-07
Publication date: 2020-04-17
Anticipated expiration: 2029-07-07

Abstract

The utility model provides a support curved surface adjustable waist cushion through the adjustment with keep supporting the curved surface shape, makes the waist curved surface that supports every user of curved surface laminating, for the waist provides the rigidity and supports, supports the different regions of curved surface through the independent control and raises or descends, simulates different massage gimmicks, carries out accurate massage to the waist.

Description

Waist cushion with adjustable supporting curved surface

Technical Field

The utility model relates to a support curved surface shape adjustable waist cushion. For different users, the back cushion is tightly attached to the waist of the user by adjusting the shape of the supporting curved surface of the back cushion, so that the stress on the waist is more uniform, and the effects of keeping correct sitting posture and relieving fatigue are achieved.

Background

Currently, waist back cushions are divided into five categories: firstly, the cushion is of a soft material filling type, the outer cover of the cushion is made of textile fabric, and soft fillers such as down feather, broken sponge, cotton, PP cotton and the like are arranged inside the cushion, so that the cushion has the advantages of various shapes, low cost and easiness in manufacturing, and has the defects that the fillers are soft in material and loose in mutual combination, and the supporting force provided by the cushion is insufficient, so that the lumbar vertebra is stressed unreasonably, and the body health is damaged; the back cushion is made of a whole piece of elastic material according to the curve shape of the waist of the human body, and has the advantages that after the elastic material is compressed, the supporting curved surface can be in full contact with the waist of the human body, the stress on the waist can be dispersed, the defects are that the supporting force is not uniform, the rigidity is insufficient, when a user sits in a wrong posture, the back cushion can not powerfully support the deformed lumbar, the lumbar can not be restored to the correct shape, and the back cushion is easy to cause waist pain and fatigue after being used for a long time; thirdly, the rigid material is integral, and the back cushion is made of a whole hard material with a curved surface shape, and has the advantages of rigid support and capability of providing larger supporting force. The defects are that the curved surface is fixed in shape, has no elasticity, can not make the supporting curved surface completely fit the waist of a user, has uneven supporting force, has hard use feeling and is easy to fatigue; and fourthly, the rigid material is split, the contact part of the back cushion and the waist of the human body is a curved supporting plate made of hard material, and the supporting plate is connected with the bottom plate through a spring or a spring piece. The chair has the advantages that the chair has certain supporting force and elasticity, can adapt to the angle change of the chair back, and has the defects that the curved surface is fixed, and the supporting curved surface can not be completely attached to the waist of a user for people with different heights and body shapes, so that the waist is stressed unevenly, and the using effect is poor; fifthly, the electric massage type back cushion is provided with the electric massage device inside, the massage head is driven by the motor to rotate or vibrate to act on the human body, the electric massage type back cushion has the advantages of simple structure and capability of meeting the massage requirements of part of people, and the electric massage type back cushion has the defects of stiff touch sense and simple massage method and cannot adjust the massage force and speed to carry out accurate massage according to the position.

Disclosure of Invention

In order to realize that the waist cushion supports the user's waist of curved surface can closely laminate to for the waist provides the rigidity support, make the waist atress even, correct bad position of sitting, still can massage the waist, reduce fatigue, the utility model provides a support curved surface adjustable waist cushion through the adjustment with keep supporting the curved surface shape, make the waist curved surface that supports every user of curved surface laminating, for the waist provides the rigidity support, support the different regions of curved surface through the independent control and raise or descend, simulate different massage gimmick, carry out accurate massage to the waist.

The utility model provides a technical scheme that technical problem adopted is: the device comprises a shell, a lining plate, auxiliary supporting sponge, a pneumatic cylinder, a position sensor, a return spring, an electric control air valve, a control module, a positive pressure pump, a negative pressure pump and other components, a telescopic ejector rod is arranged on the pneumatic cylinder, an end cap is installed on the ejector rod, a supporting curved surface is formed by the end caps which are densely arranged, the pressure of a human body is shared on each ejector rod, the stress of a single ejector rod is smaller, the displacement is smaller, the supporting curved surface is integrally expressed as rigid support, the weight of the human body can be effectively supported, meanwhile, due to the compressibility of air, acting force for sudden change, the supporting curved surface can also express certain toughness, and the touch feeling is better. When the waist support is used for the first time, the waist curved surface of a user is calibrated, and the end caps on the ejector rods are completely attached to the waist of the user by adjusting the ejector rods of the pneumatic cylinders to form a support curved surface. When the user uses the device again, the control module controls the negative pressure pump to suck the ejector rods back to the previous calibration position, and the ejector rods are restored to be the supporting curved surface of the user, so that repeated calibration is avoided. When the massage device is used, the control module controls the positive pressure pump to divide areas, and the ejector rods are extruded out at different speeds and different degrees in a time-division sequence to squeeze the waist of a human body and relieve fatigue.

The beneficial effects of the utility model are that, it is not good to have solved cushion curved surface and the laminating of user's lumbar vertebrae curve, and the waist atress is inhomogeneous, and support dynamics and elasticity are not enough and can not realize the problem of accurate massage. The waist of different users can obtain enough supporting force and accurate massage by flexibly adjusting the supporting curved surface.

Drawings

The present invention will be further explained with reference to the accompanying drawings and examples, wherein fig. 1 is an external view of the device, fig. 2 is a main structure view of the device, fig. 3 is an assembly view of a pneumatic cylinder, a sensor and an electric control gas valve, fig. 4 is a sectional view of the pneumatic cylinder, fig. 5 is a schematic view of interaction between a support curved surface and a human body, and the parts in the drawings are labeled: 1. the device comprises an auxiliary supporting sponge, 2 parts of a lining plate, 3 parts of a shell, 4 parts of a control module, 5 parts of a positive pressure pump, 6 parts of a negative pressure pump, 7 parts of a pneumatic cylinder, 8 parts of a mandril, 9 parts of a secondary cylinder, 10 parts of a return spring, 11 parts of a position sensor, 12 parts of a primary cylinder, 13 parts of an electric control air valve, 14 parts of an end cap.

Detailed Description

Fig. 1 is a perspective view of an embodiment of the adjustable cushion of the present invention. The appearance of the whole device is basically consistent with that of a common waist cushion, and the device accords with the aesthetic concept of the public.

Fig. 2 is a structure diagram of the main body of the device, the lining plate 2 is arranged on the shell 3, the side section of the lining plate is a right-angle broken line (see fig. 5), the broken line is obtained by fitting a curve of the waist of a human body, the pneumatic cylinder 7 is arranged on the lining plate 2, the end cap 14 on the pneumatic cylinder 7 forms an initial curved surface, the initial curved surface is beneficial to reducing the free stroke of the ejector rod of the pneumatic cylinder during calibration, enough working stroke is left for the ejector rod, and the pneumatic cylinder with the same specification can be conveniently used. Pneumatic cylinder 7 is connected with automatically controlled pneumatic valve 13, and automatically controlled pneumatic valve 13 has 4 gas circuit interfaces, respectively with pneumatic cylinder 7, positive-pressure pump 5, negative pressure pump 6 and atmosphere intercommunication, in this embodiment, every pneumatic cylinder all connects an automatically controlled pneumatic valve 13, also can a several pneumatic cylinders share an automatically controlled pneumatic valve under other circumstances, and the purpose is the pneumatic cylinder quantity of the biggest reduction because of the cross gas interact, guarantees the ability of each pneumatic cylinder independent work as far as possible, improves control accuracy and makes the pneumatic cylinder ejector pin form the stable curved surface that supports. The circuit parts of the positive pressure pump 5, the negative pressure pump 6 and the electric control air valve 13 are controlled by the control module 4 to complete the functions of air passage conversion and positive and negative pressure switching. The auxiliary supporting sponge 1 is arranged on the shell 3 and used for filling the space left by the supporting curved surface and supporting the waist and the back of the human body together with the supporting curved surface, so that the stress of the human body is more uniform. The housing 3 rests on the seat back and supports the force of the person applying backwards on the cushion.

Fig. 3 is an assembly diagram of a pneumatic cylinder, a sensor and an electric control air valve, wherein an end cap 14 is arranged on a top rod 8, directly contacts with a human body and bears the pressure of the human body, and in order to improve the comfort, the overall shape of the end cap 14 is round and smooth and is designed to be a round convex surface. The ejector rod 8 is installed in the second-stage cylinder 9 and is sealed with the inner wall of the second-stage cylinder 9 through two rubber sealing rings installed at the rear end of the ejector rod, the second-stage cylinder 9 is installed in the first-stage cylinder 12 and is sealed with the inner wall of the first-stage cylinder 12 through two rubber sealing rings installed at the rear end of the second-stage cylinder, the front surface of the return spring 10 abuts against the ejector rod 8, the middle of the return spring penetrates through the second-stage cylinder 9, and the rear surface of the return spring abuts against the first-stage. The electric control air valve 13 is arranged behind the primary cylinder 12, and the position sensor 11 is arranged in the cavities of the primary cylinder 12, the secondary cylinder 9 and the mandril 8 and used for measuring the position information of the mandril 8.

Fig. 4 is a pneumatic cylinder sectional view, and in the drawing, 8 front ends of ejector pins are sealed, the rear end is opened, the two ends of the second-stage cylinder 9 are opened to form a hollow cylinder, 12 front ends of the first-stage cylinder are opened, the rear end is sealed, and the three are combined together to form a single-cavity second-stage telescopic pneumatic cylinder, so that the position information of the ejector pins 8 can be directly obtained by using a position sensor inside the cylinder due to the single-cavity design, and the pneumatic cylinder is very beneficial to reducing the whole size of the pneumatic cylinder and the thickness of the cushion. The pneumatic cylinder is provided with only one air channel interface arranged at the bottom of the primary cylinder 12, and the interface is communicated with the positive pressure pump, the negative pressure pump and the atmosphere through an electric control air valve 13 to finish the telescopic motion of the pneumatic cylinder. The rear part of the ejector rod 8 is provided with an outer circular boss, the front part of the secondary cylinder 9 is provided with an inner circular boss, and the rear part is provided with an outer circular boss. The front end of a first-level cylinder 12 is installed on a lining plate 2, a round hole is formed in the corresponding position of the lining plate 2, a second-level cylinder 9 penetrates through the round hole and is limited at the outer circle boss of the second-level cylinder 9 by the lining plate 2, a push rod 8 is limited at the inner circle boss of the front portion of the second-level cylinder 9, under the initial state, the push rod 8 and the second-level cylinder 9 are limited at two positions, under the action of a return spring 10, the push rod 8 and the second-level cylinder 9 extend forwards to the maximum position, and connection among all parts.

FIG. 5 is a schematic view showing the interaction between a supporting curved surface and a human body, during calibration operation, under the control of a control module 4, an electric control air valve 13 opens an air passage communicated with the atmosphere, a user keeps a correct sitting posture to lean against an initial curved surface, under the compression of a waist curved surface of the human body, an end cap 14 drives a mandril 8 and a secondary cylinder 9 to descend to corresponding positions, a return spring 10 is compressed, gas in the cylinders is discharged to the atmosphere, all the end caps 14 form a supporting curved surface fitted with the waist curved surface of the user, after the electric control air valve 13 is closed, the mandril 8 and the secondary cylinder 9 rebound under the action of the return spring 14, when the sum of the pressure in the cylinders and the pressure in the cylinders is equal to the pressure outside the cylinders, the shape of the supporting curved surface is basically unchanged, a position sensor 11 measures the position information of the mandril 8, and the, and stored in memory of the control module 4.

During normal use, need earlier restore initial curved surface to user's support curved surface, namely under control module 4's control, automatically controlled pneumatic valve 13 switches on the gas circuit of connecting negative pressure pump 6, the negative pressure pump is bled pneumatic cylinder 7 through the pipeline, under the effect of negative pressure, ejector pin 8 and second grade jar 9 descend corresponding position according to the positional information that control module 4 stored before, automatically controlled pneumatic valve 13 closes, pneumatic cylinder 7 is in the encapsulated situation, at this moment initial curved surface resumes user's support curved surface, should support curved surface shape and user's waist curved surface when the correct position of sitting and laminate completely. Because 8 are more in the ejector pin, single ejector pin atress is less, and the displacement is also less, and each pneumatic cylinder relatively independent work, supports the curved surface and wholly show as the rigid support, can effectively support human weight, simultaneously, because the compressibility of air, to the effort of sudden change, support the curved surface and can also show certain elasticity, the sense of touch is better. When the sitting posture of the user is wrong, the curved surface of the waist is deformed, the corresponding position of the supporting curved surface is subjected to additional acting force, the ejector rods 8 at the corresponding positions further compress air in the air cylinders, and sufficient reaction force is generated to act on the waist of the human body, so that the correct sitting posture is recovered.

When the massage device is used for massage, under the control of the control module 4, the electric control air valve 13 is communicated with an air passage connected with the positive pressure pump 5, the positive pressure pump inflates the pneumatic cylinder 7 through a pipeline, the corresponding ejector rod 8 drives the end cap 14 to rise to extrude the waist of a human body, after a set time, the electric control air valve 13 closes the positive pressure air passage, the air passage communicated with the atmosphere is communicated, the ejector rod 8 returns to the original position under the pressure of the human body, and the air in the cylinder is released to the atmosphere to finish a massage action. The ejector rods in different areas and different quantities are controlled by the control module 4 to rise and fall according to the set height and time sequence to simulate different massage techniques, so that the waist of the human body is precisely massaged, and the fatigue of the waist can be effectively relieved.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the real thing all belongs to any simple modification, change and the equivalent structure change of doing the above embodiment the utility model discloses technical scheme's within the scope of protection.

Claims

1. The utility model provides an adjustable cushion of lumbar support curved surface which characterized in that: the back cushion comprises shell, welt, auxiliary stay sponge, pneumatic cylinder, position sensor, return spring, automatically controlled pneumatic valve, control module, positive pressure pump, negative pressure pump, and the pneumatic cylinder is installed on the welt, installs the end cap on the pneumatic cylinder ejector pin, and the curved surface of support waist is constituteed to a plurality of end caps, and the auxiliary stay sponge lies in both ends and support curved surface coact in human waist about the back cushion.

2. The curved lumbar support adjustable bolster of claim 1 further characterized by: the lateral section of the lining plate is in a right-angle broken line which is obtained by fitting a human waist curve, so that the pneumatic cylinder ejector rod end cap arranged on the lining plate forms a curved surface in an initial working state, the initial curved surface is favorable for reducing the free stroke of the ejector rod when the pneumatic cylinder is calibrated, and enough working stroke is reserved for the ejector rod.

3. The curved lumbar support adjustable bolster of claim 1 further characterized by: 1 to 4 pneumatic cylinders share 1 electric control air valve.

4. The curved lumbar support adjustable bolster of claim 1 further characterized by: and a position sensor is arranged in each pneumatic cylinder and used for measuring the position information of the ejector rod of the pneumatic cylinder and storing the position information into the control module.

5. The curved lumbar support adjustable bolster of claim 1 further characterized by: a positive pressure pump and a negative pressure pump are arranged to provide power for the pneumatic cylinder.

6. The curved lumbar support adjustable bolster of claim 1 further characterized by: the pneumatic cylinder comprises ejector pin, one-level jar, second grade jar, return spring etc. and ejector pin front end seals, the rear end opening, the second grade jar both ends opening becomes a cavity section of thick bamboo, one-level jar front end opening, the rear end seals, and the three combines together and forms a telescopic pneumatic cylinder of single chamber second grade, and pneumatic cylinder only is equipped with a gas circuit interface in one-level jar bottom, is connected with malleation, negative pressure air supply through this gas circuit interface, accomplishes pneumatic cylinder's concertina movement.

7. The curved lumbar support adjustable bolster of claim 6 further characterized by: the ejector pin is installed in the second grade jar, and seal through installing twice rubber seal at its rear end and second grade jar inner wall, the second grade jar is installed in the one-level jar, and seal through installing twice rubber seal at its rear end and one-level jar inner wall, ejector pin rear portion excircle boss and the anterior interior round boss of second grade jar are spacing each other, the excircle boss at second grade jar rear portion is spacing each other with the welt of installing in one-level jar front end, under the initial condition, two are spacing to make ejector pin and second grade jar under return spring's effect, can fully extend and keep the connection of each part.