CN215604375U

CN215604375U - Angle adjusting structure and adjustable chair

Info

Publication number: CN215604375U
Application number: CN202121615661.7U
Authority: CN
Inventors: 陈苑祥; 蒋俊
Original assignee: Zhongshan Hanwei Daily Products Co ltd
Current assignee: Zhongshan Hanwei Daily Products Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-01-25
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses an angle adjusting structure and an adjustable chair, wherein the angle adjusting structure comprises a support, a fixed frame, a rotatable block, a movable block, a limiting mechanism, a pressing mechanism and a spring, the rotatable block is hinged on the fixed frame, the limiting mechanism is connected with the rotatable block, the movable block is provided with a plurality of grooves, each groove is internally provided with a clamping block, one end of the spring is propped against the limiting mechanism, the other end of the spring is propped against the movable block, the movable block is arranged in the limiting mechanism in a vertically movable manner, the pressing mechanism is connected with the movable block, the support is provided with a clamping arm, and the clamping arm is embedded in any one groove and propped against the clamping block in the groove in which the clamping arm is embedded. Therefore, the angle adjusting structure changes whether the clamping arm is limited by the clamping block or not by the pressing mechanism, namely, whether the bracket is movable or not is changed, the angle adjusting structure does not depend on the buckling fit, the clamping and releasing difficulty of the clamping arm is low, the operation noise is small, the tripping probability is small, and the safety is good.

Description

Angle adjusting structure and adjustable chair

Technical Field

The utility model relates to the field of mechanical design, in particular to an angle adjusting structure and an adjustable chair.

Background

A chair, which is a product that is seen everywhere in daily life, is widely used in various fields, such as furniture field, automobile field, office field, etc., and the kinds of the chair are also various, including office chairs, baby chairs, wheelchairs, automobile seats, etc.

The inclination angle of the chair in the past is usually fixed, or the inclination angle of the chair can be changed a little by adopting the elastic material, and now in order to adapt to different use scenes and use requirements of users, a plurality of chairs are provided with angle adjusting structures, so that the requirement that the user can adjust the inclination angle of the chair at a large angle is conveniently realized.

But its most of common chair angle regulation structure is gone into the draw-in groove of different positions through the fixture block card and is realized the change of angle, under this kind of mode, on the one hand, the degree of difficulty that the fixture block is deviate from the draw-in groove is very big, the user often need use great strength just can realize deviating from of fixture block, waste time and energy, on the other hand, can produce great noise when the fixture block card goes into the draw-in groove, the easy condition that the fixture block card goes into not in place that takes place moreover, and take place the dropout condition when leading to using, the security is relatively poor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an angle adjustment structure and an adjustable chair, which may solve one or more of the above problems.

According to one aspect of the utility model, the angle adjusting structure comprises a support, a fixed frame, a rotatable block, a movable block, a limiting mechanism, a pressing mechanism and a spring, wherein the rotatable block is hinged on the fixed frame, the limiting mechanism is connected with the rotatable block, the movable block is provided with a plurality of grooves, a clamping block is arranged in each groove, one end of the spring abuts against the limiting mechanism, the other end of the spring abuts against the movable block, the movable block is arranged in the limiting mechanism in a vertically movable mode, the pressing mechanism is connected with the movable block, a clamping arm is arranged on the support, and the clamping arm is embedded in any groove and abuts against the clamping block in the groove in which the clamping arm is embedded.

This angle modulation structure's beneficial effect is: among this angle adjustment structure, inlay in arbitrary recess when the card arm, because it can be restricted by the fixture block in this recess, can effectively avoid deviating from of card arm from the recess, thereby make the relative position of support and mount fixed, the angle that becomes between support and the mount is fixed promptly, and when the user needs to change the angle that becomes between support and the mount, can pass through pressing mechanism, make the movable block remove so that the fixture block no longer restricts the support, the user can change the recess that the card arm needs to be embedded through rotating the rotatable block, later rely on the spring to reset and can realize the change that becomes between support and the mount. Therefore, the angle adjusting structure changes whether the clamping arm is limited by the clamping block or not by the pressing mechanism, namely, whether the bracket is movable or not is changed, the angle adjusting structure does not depend on the buckling fit, the clamping and releasing difficulty of the clamping arm is low, the operation noise is small, the tripping probability is small, and the safety is good. In addition, the limiting mechanism can effectively limit the movement of the movable block so as to ensure the moving reliability of the movable block.

In some embodiments, the limiting mechanism includes a first limiting plate, the first limiting plate is connected to the rotatable block, the first limiting plate is provided with a guide bar, the movable block is provided with a recess, and the guide bar is disposed in the recess. From this, first limiting plate can play limiting displacement to one side of movable block, and the conducting bar can play the guide effect to reciprocating of movable block to guarantee its removal accuracy.

In some embodiments, the limiting mechanism includes a second limiting plate, the second limiting plate is provided with a convex pillar, the movable block is provided with a limiting hole, and the convex pillar passes through the limiting hole and is connected with the first limiting plate. From this, the second limiting plate can play limiting displacement to the opposite side of movable block, and spacing hole can play limiting displacement to the movable distance of movable block to avoid the removal of movable block to excessively cause the damage of this structure.

In some embodiments, the first limiting plate is provided with a plurality of first accommodating grooves, the second limiting plate is provided with a plurality of second accommodating grooves, and the first accommodating grooves, the second accommodating grooves and the grooves are communicated in a one-to-one correspondence manner. The first containing groove and the second containing groove are arranged to prevent the first limiting plate and the second limiting plate from being blocked when the clamping arm needs to be placed into the groove.

In some embodiments, the limiting mechanism comprises a side limiting block and a bottom limiting block, the side limiting block and the bottom limiting block are both connected with the first limiting plate, the side limiting block is connected with the rotatable block, and one end of the spring abuts against the bottom limiting block. The side limiting block can limit the movable limit at the rear side of the movable block, and the bottom limiting block can limit the movable limit at the bottom side of the movable block so as to further improve the limiting effect of the limiting mechanism on the movable block.

In some embodiments, the pressing mechanism includes a key and a pressing block, the key is connected to the pressing block, the movable block is provided with a first inclined surface, the pressing block is provided with a second inclined surface, the first inclined surface is connected to the second inclined surface, and the key penetrates out of the limiting mechanism. Through the connection of the first inclined plane and the second inclined plane, when the pressing block is pressed down, the movable block can be driven to move up and down.

In some embodiments, the movable block is provided with a limiting groove, the first inclined plane is arranged in the limiting groove, the limiting mechanism is provided with a protrusion, the protrusion is provided with a guide groove, the protrusion extends into the limiting groove, the pressing block is provided with a projection, and the projection is embedded in the guide groove. Because the bulge is embedded in the guide groove, the movement of the pressing block can be effectively limited, and the movement reliability of the key is ensured.

In some embodiments, the angle adjusting structure further includes a base, the fixing frame is fixedly connected to the base, and the support is hinged to the base. The setting of base can make things convenient for the placing of mount.

According to one aspect of the present invention, there is provided an adjustable chair comprising an angle adjustment structure and a seat body mounted on a support of the angle adjustment structure.

The adjustable chair has the beneficial effects that: through setting up angle modulation structure, then this adjustable chair can realize the angle modulation of chair body simply fast, and the noise is little when its regulation, and the security is strong.

In some embodiments, the chair body is provided with a seat, the seat is provided with a stopper, and the stopper is provided with a through hole which is communicated with the seat. The setting of seat can convenience of customers's seat, and the dog can avoid deviating from of user from the seat, and the setting of through-hole can the stretching out of convenience of customers foot to make this adjustable chair can adapt to the use of user groups such as baby.

Drawings

Fig. 1 is a schematic structural diagram of an angle adjustment structure according to an embodiment of the present invention.

Fig. 2 is an exploded view of the angle adjustment structure according to the embodiment of the present invention after the first limiting plate, the side limiting block, the bottom limiting block, the second limiting plate, the key, and the movable block are connected.

Fig. 3 is a schematic structural view of the angle adjusting structure according to an embodiment of the present invention after the first limiting plate, the side limiting block, and the bottom limiting block are connected.

Fig. 4 is a schematic structural diagram of a movable block of an angle adjustment structure according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a movable block of an angle adjustment structure according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a second limiting plate of the angle adjusting structure according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a pressing mechanism of an angle adjustment structure according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of an adjustable chair according to an embodiment of the present invention.

In the figure: 1. the chair comprises a bracket, 2 parts of a fixed frame, 3 parts of a rotatable block, 4 parts of a movable block, 5 parts of a limiting mechanism, 6 parts of a pressing mechanism, 7 parts of a spring, 8 parts of a base, 9 parts of a chair body, 11 parts of a clamping arm, 41 parts of a recess, 42 parts of a limiting hole, 401 parts of a groove, 402 parts of a clamping block, 43 parts of a first inclined surface, 44 parts of a limiting groove, 51 parts of a first limiting plate, 511 parts of a guide strip, 512 parts of a first accommodating groove, 52 parts of a second limiting plate, 521 parts of a second accommodating groove, 522 parts of a protrusion, 53 parts of a side limiting block, 54 parts of a bottom limiting block, 523 parts of a guide groove, 61 parts of a key, 62 parts of a pressing block, 621 parts of a second inclined surface, 622 parts of a protrusion, 91 parts of a seat, 911 parts of a stopping block and 912 parts of a through hole.

Detailed Description

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

Example 1

Referring to fig. 1 to 7, an angle adjusting structure of this embodiment includes a bracket 1, a fixed frame 2, a rotatable block 3, a movable block 4, a limiting mechanism 5, a pressing mechanism 6, and a spring 7.

The fixed frame 2 is provided with a shaft, the rotatable block 3 is hinged on the shaft of the fixed frame 2, and when the rotatable block 3 is not fixed, the rotatable block 3 can rotate around the shaft of the fixed frame 2.

The limiting mechanism 5 includes a first limiting plate 51, a second limiting plate 52, a side limiting block 53, and a bottom limiting block 54. Can be equipped with the through-hole in the piece 3 that can change, and the lateral wall integral type fixed connection of first limiting plate 51 and the through-hole of the piece 3 that can change is equipped with conducting bar 511 on the first limiting plate 51, and the movable block 4 is arranged in the through-hole of the piece 3 that can change for the top position of movable block 4 can be restricted by the piece 3 that can change, and is equipped with sunken 41 on the movable block 4, and the conducting bar 511 is located in sunken 41.

Be equipped with the projection 521 on the second limiting plate 52, be equipped with spacing hole 42 on the movable block 4, projection 521 and spacing hole 42 are a plurality ofly, and quantity is the same, and a plurality of projection 521 one-to-ones pass a plurality of spacing holes 42, and all projections 521 all pass through screw fixed connection with first limiting plate 51 to the movable block 4 is located between first limiting plate 51 and the second limiting plate 52, and the position of the both sides of movable block 4 can be restricted by first limiting plate 51 and second limiting plate 52 respectively.

Side stopper 53 and end stopper 54 all with first limiting plate 51 integral type fixed connection, and side stopper 53 and end stopper 54 all with the lateral wall integral type fixed connection of the through-hole of rotatable piece 3, side stopper 53 can carry on spacingly to the position of the rear side of movable block 4, end stopper 54 can carry on spacingly to the bottom position of movable block 4, then when movable block 4 is not fixed, movable block 4 can reciprocate along the conducting bar 511 on the first limiting plate 51, movable block 4 can locate stop gear 5 with reciprocating promptly. In addition, one end of the spring 7 abuts against the bottom stopper 54, the other end of the spring 7 abuts against the movable block 4, and the position of the spring 7 is also restricted by the stopper mechanism 5.

The movable block 4 is provided with a plurality of grooves 401, each groove 401 is provided with a fixture block 402, the first limiting plate 51 is provided with a plurality of first accommodating grooves 512, the second limiting plate 52 is provided with a plurality of second accommodating grooves 521, the number of the first accommodating grooves 512 and the number of the second accommodating grooves 521 are the same as that of the grooves 401, and the plurality of first accommodating grooves 512, the plurality of second accommodating grooves 521 and the plurality of grooves 401 are communicated in a one-to-one correspondence manner.

The pressing mechanism 6 comprises a key 61 and a pressing block 62, the key 61 and the pressing block 62 are fixedly connected through a bolt, a first inclined surface 43 is arranged on the movable block 4, a second inclined surface 621 is arranged on the pressing block 62, the first inclined surface 43 is in contact connection with the second inclined surface 621, and the key 61 penetrates out of the second limiting plate 52 of the limiting mechanism 5.

The movable block 4 is further provided with a limiting groove 44, the first inclined surface 43 is arranged in the limiting groove 44, the second limiting plate 52 of the limiting mechanism 5 is further provided with a protrusion 522, a guide groove 523 is arranged in the protrusion 522, the protrusion 522 extends into the limiting groove 44, the pressing block 62 is provided with a bump 622, and the bump 622 is embedded in the guide groove 523.

The utility model also comprises a base 8, the fixed mount 2 is fixedly connected with the base 8 through bolts, the support 1 is rotatably hinged on the base 8, and the support 1 is also provided with a clamping arm 11.

When the angle adjusting structure of this embodiment is used, the latch arm 11 on the bracket 1 can be embedded in any one of the grooves 401 of the rotatable block 4 and abut against the latch 402 in the groove 401 where the latch arm 11 is embedded, so as to fix the bracket 1 and the rotatable block 4, i.e. fix the tilt angle of the bracket 1.

When the inclination angle of the bracket 1 needs to be changed, a user can press the key 61, the pressing block 62 connected with the key 61 follows up, and due to the connection of the first inclined surface 43 and the second inclined surface 621, the movable block 4 can move downwards along the guide strip 511, the fixture blocks 402 on the movable block 4 move downwards collectively, meanwhile, the spring 7 is compressed, at this time, the fixture arm 11 on the bracket 1 does not abut against the fixture block 402, the bracket 1 and the rotatable block 4 are not fixed any more, the user can slightly pull up the rotatable block 4 to enable the fixture arm 11 on the bracket 1 to rotate to enable the fixture arm 11 on the bracket 1 to be separated from the embedded groove 401, then the user can rotate the bracket 1 to enable the fixture arm 11 on the bracket 1 to be placed in a new groove 401 according to the angle adjusted by the user, at this time, the key 61 is released, the spring 7 is not compressed and unfolded any more, the spring 7 resets the movable block 4, the fixture block 402 in the new groove 401 can clamp the arm 1, so that the stand 1 and the rotatable block 4 are fixed again, and the adjustment of the inclination angle of the stand 1 is completed.

Example 2

Referring to fig. 1 to 8, the adjustable chair of the present embodiment includes a chair body 9 and an angle adjusting structure described in embodiment 1, wherein the chair body 9 is fixedly sleeved on a bracket 1 of the angle adjusting structure.

Be equipped with seat 91 on the chair body 9, be equipped with dog 911 on the seat 91, dog 911 is equipped with through-hole 912, and through-hole 912 is two, and two through-holes 912 symmetry set up, and two through-holes 912 all are linked together with seat 91.

This adjustable chair can regard as baby's chair to use, and the baby can be sat in seat 91, and baby's foot can wear out from through-hole 912, and dog 912 can effectively avoid the baby to deviate from on seat 91, and in addition, the user can adjust the inclination of chair body 9 through using angle adjustment structure to satisfy user's different use needs.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims

1. The angle adjusting structure is characterized by comprising a support, a fixing frame, a rotatable block, a movable block, a limiting mechanism, a pressing mechanism and a spring, wherein the rotatable block is hinged on the fixing frame, the limiting mechanism is connected with the rotatable block, a plurality of grooves are formed in the movable block, each groove is internally provided with a fixture block, one end of the spring supports against the limiting mechanism, the other end of the spring supports against the movable block, the movable block can be arranged in the limiting mechanism in a vertically moving mode, the pressing mechanism is connected with the movable block, a clamping arm is arranged on the support and embedded in any groove, and supports against the fixture block in the groove in which the clamping arm is embedded.

2. The angle adjustment structure of claim 1, wherein the limiting mechanism comprises a first limiting plate, the first limiting plate is connected to the rotatable block, the first limiting plate is provided with a guide bar, the movable block is provided with a recess, and the guide bar is disposed in the recess.

3. The angle adjustment structure of claim 2, wherein the limiting mechanism comprises a second limiting plate, the second limiting plate is provided with a protruding column, the movable block is provided with a limiting hole, and the protruding column passes through the limiting hole and is connected with the first limiting plate.

4. The angle adjustment structure of claim 3, wherein the first limiting plate has a plurality of first receiving grooves, the second limiting plate has a plurality of second receiving grooves, and the first receiving grooves, the second receiving grooves and the grooves are in one-to-one correspondence.

5. The angle adjusting structure of claim 2, wherein the limiting mechanism comprises a side limiting block and a bottom limiting block, the side limiting block and the bottom limiting block are both connected with the first limiting plate, the side limiting block is connected with the rotatable block, and one end of the spring abuts against the bottom limiting block.

6. The angle adjusting structure of claim 1, wherein the pressing mechanism comprises a button and a pressing block, the button is connected with the pressing block, the movable block is provided with a first inclined surface, the pressing block is provided with a second inclined surface, the first inclined surface is connected with the second inclined surface, and the button penetrates out of the limiting mechanism.

7. The angle adjusting structure of claim 6, wherein the movable block is provided with a limiting groove, the first inclined surface is provided in the limiting groove, the limiting mechanism is provided with a protrusion, the protrusion is provided with a guide groove, the protrusion extends into the guide groove, the pressing block is provided with a projection, and the projection is embedded in the guide groove.

8. The angle adjusting structure of claim 1, comprising a base, wherein the fixing frame is fixedly connected with the base, and the support is hinged on the base.

9. An adjustable chair comprising the angle adjustment structure of claim 1 and a seat mounted on a support of the angle adjustment structure.

10. The adjustable chair according to claim 9, wherein said seat is provided with a stopper, said stopper is provided with a through hole, and said through hole is communicated with said seat.