CN218773548U

CN218773548U - Sitting posture corrector

Info

Publication number: CN218773548U
Application number: CN202221961500.8U
Authority: CN
Inventors: 王焕杰; 陈杰民
Original assignee: Deli Group Co Ltd
Current assignee: Deli Group Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-03-31
Anticipated expiration: 2032-07-27

Abstract

The sitting posture corrector comprises a chest support assembly and a base assembly, wherein the chest support assembly comprises a chest support bracket and a chest support arranged on the chest support bracket, the chest support bracket is connected to the base assembly, the chest support comprises a first shell and a second shell, one surface of the first shell and one surface of the second shell are arranged oppositely, an elastic part for keeping the first shell and the second shell away from each other and an anti-falling mechanism for limiting the first shell and the second shell from falling off are arranged between the first shell and the second shell. When the body of the user leans against the chest support, the chest support can be automatically adjusted along with the compression of the elastic piece. Need not to carry out readjustment to the chest support when user's health slightly removes, the chest support can be according to human contact automatic adjustment, more laminates the human body, increases the comfort level of product.

Description

Sitting posture corrector

Technical Field

The utility model relates to a writing position of sitting's correction instrument field especially relates to position of sitting unscrambler.

Background

The sitting posture corrector generally comprises two parts, wherein the upper part is structured to limit the writing posture of a user, and the lower part is provided with a base for clamping a fixed seat of a table board. The chest support is a common structure with the upper part limiting the writing posture, and the chest of a user is attached to the chest support to prevent the chest of the user from excessively approaching the desktop. The chest holds in the palm is the stationary state during the use, and the contact between and the health is fixed plane or curved surface, needs the user to constantly adjust during the use just can let the chest hold in the palm and perfectly laminate with the identity, reaches the comfortable state of health and chest support contact. However, the body of the user moves during writing, so that the comfortable point of the body and the chest support changes, and the chest support in the prior art cannot be attached to the chest support along with the movement of the identity, so that the body discomfort is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sitting posture corrector aiming at the problems, the chest support of which can be finely adjusted along with the slight movement of the body of the user.

The utility model provides a used technical scheme of above problem is: the sitting posture corrector comprises a chest support assembly and a base assembly, wherein the chest support assembly comprises a chest support bracket and a chest support arranged on the chest support bracket, the chest support bracket is connected to the base assembly, the chest support comprises a first shell and a second shell, one surface of the first shell and one surface of the second shell are arranged oppositely, an elastic part for keeping the first shell and the second shell away from each other and an anti-falling mechanism for limiting the first shell and the second shell to be separated are arranged between the one surface of the first shell and the one surface of the second shell, a first sliding block is arranged on the other surface of the first shell, a first sliding groove is arranged on the chest support bracket, the first sliding block is connected with the first sliding groove in a sliding mode, and a sliding limiting mechanism is arranged between the first sliding block and the first sliding groove.

The utility model discloses sitting posture unscrambler's chest holds in palm sliding connection on the support is held in the palm to the chest, and the chest holds in the palm comprises first casing and second casing, sets up the elastic component between first casing and the second casing, and interconnect does not break away from between first casing and the second casing, and keeps the certain distance again, and when user's health leaned on the chest and held in the palm, along with the compression of elastic component, but the distance automatic adjustment between the first casing that the chest held in the palm and the second casing.

After adopting above structure, compare the vantage that prior art compares and lie in: need not to carry out readjustment to the chest support when user's health slightly removes, the chest support can be according to human contact automatic adjustment, more laminates the human body, increases the comfort level of product.

Preferably, an accommodating groove is formed in one surface, far away from the chest support, of the chest support bracket, the first sliding groove is located in one surface, close to the chest support, of the chest support bracket and is communicated with the accommodating groove, a limiting ring is arranged on the outer wall of the first sliding block, and the limiting ring is movably connected in the accommodating groove; the one side of first casing is equipped with first recess, the one side of second casing is equipped with the second recess, anti-disengaging mechanism includes the first barb and the second barb of mutual lock joint, first barb is connected on first recess, the second barb is connected on the second recess, be equipped with the stand pipe on the first recess, be equipped with the guide post that corresponds with the stand pipe on the second recess, the guide post plug-in is in the stand pipe and along its axial direction sliding connection.

Preferably, the first groove is provided with a first through hole, the first slider is provided with a second through hole communicated with the first through hole, the sliding limiting mechanism comprises a limiting guide pillar and a limiting cover plate, the limiting cover plate is connected in the accommodating groove and corresponds to the first sliding groove, the limiting cover plate is provided with at least two positioning grooves, the limiting guide pillar comprises a large-diameter section and a small-diameter section, the large-diameter section is positioned in the first groove, and the small-diameter section penetrates through the first through hole and the second through hole and then is inserted into the positioning grooves; the connecting pipe is arranged on the second groove, the elastic piece is a first spring, one end of the first spring abuts against the large-diameter section, and the other end of the first spring abuts against the inside of the connecting pipe. After setting up like this, first casing is through the cooperation sliding connection of first slider with first spout on the chest holds in the palm the support, and first spring not only plays and lets first casing and second casing keep keeping away from the trend, still plays to make limit guide pillar keep being close to the constant head tank trend, and first spring compression when sliding first casing, first spring resilience when limit guide pillar arrives another constant head tank.

Preferably, the groove wall of the first sliding groove is provided with an installation notch, a blocking block is arranged at the position, corresponding to the installation notch, of the limiting cover plate, a clamping block is arranged on the outer wall of the limiting cover plate, a clamping groove matched with the clamping block in a clamped mode is formed in the inner wall of the accommodating groove, and the chest support further comprises a chest support cover plate covering the notch of the accommodating groove. Make things convenient for the product installation like this, aim at the first slider of first casing earlier and install the breach and pack into first spout, install spacing apron again, then cover the chest and hold in the palm support apron.

Preferably, the base assembly comprises an upper support, a third sliding groove is formed in the side wall of one end of the upper portion of the upper support, the third sliding groove extends along the height direction of the upper support, a protruding block is arranged on the side, away from the chest support, of the chest support, the protruding block is connected in the third sliding groove in a sliding mode, a first rack is arranged at the bottom of the third sliding groove, first protruding teeth meshed with the first rack are arranged on the end face of one end of the protruding block, and an action piece enabling the first protruding teeth to keep close to the first rack in a trend is arranged in the upper support. After setting up like this, be convenient for chest to hold in the palm subassembly and highly adjust from top to bottom for the base subassembly. The chest support component is up-down limited through the matching of the first convex teeth and the first rack. The first rack extends along the length direction of the third sliding groove, and the upper and lower movement of the convex block of the chest support component is limited when the first convex tooth is meshed with the first rack. The first convex tooth keeps the trend of being close to the first rack in the free state, the first convex tooth is meshed with the first rack, the chest support component is fixed on the upper support, the convex tooth can be far away from the rack after the action piece is moved, the convex tooth is disengaged from the rack in a meshed mode, the convex block can slide up and down in the third sliding groove, and the chest support component slides up and down to a required position along with the convex tooth.

Preferably, the convex block is provided with a hollow cavity, a third through hole is formed in one end, close to the first rack, of the convex block, an elastic sheet is arranged on the third through hole, the lower end of the elastic sheet is connected with the edge of the third through hole, the first convex tooth is located on the outer wall of the upper end of the elastic sheet, a fourth through hole communicated with the convex block hollow cavity is formed in one face, close to the chest support, of the chest support, an insert is arranged in the fourth through hole, the acting piece comprises a button, the button is provided with a shifting rod, the shifting rod is connected in the insert in a sliding mode, the shifting rod is located in the convex block cavity through one end of the insert, a connecting rod is arranged on the inner wall of the elastic sheet, and the end of one end of the shifting rod abuts against the connecting rod when the shifting rod slides to the upper end of the insert. The tip of driving lever one end passes through the transition of last inclined plane with the up end, and connecting rod free end tip passes through the transition of lower inclined plane with lower terminal surface, breaks away from with the connecting rod after the driving lever gliding of being convenient for, and the driving lever of being convenient for slides back to and offsets the state with the connecting rod simultaneously.

Preferably, the base assembly further comprises a lower bracket, a lower clamping plate is arranged at the lower end of the lower bracket, an upper clamping plate is arranged at the lower end of the upper bracket, an accommodating cavity is formed in the lower part of the upper bracket, an opening is formed in the end part of the lower end of the upper bracket, and the lower bracket is sleeved in the accommodating cavity and connected in a sliding manner along the height direction of the upper bracket; the outer wall of one end of the lower support is provided with a second rack extending along the height direction, the lower end of the side wall of the upper support is connected with a swing arm in a rotating mode, one end of the swing arm is provided with a second convex tooth meshed with the second rack, the other end of the swing arm is provided with a limiting portion, and the upper clamp plate is provided with a limiting piece connected with the limiting portion in a matched mode. The lower support and the upper support are limited in vertical sliding through the engagement of the second convex teeth on the swing arm and the second rack on the lower support, the table plate is clamped by the upper clamp plate and the lower clamp plate, the second convex teeth are separated from the second rack after the swing arm rotates, and the lower support can slide vertically relative to the upper support. When the second convex tooth is engaged with the second rack, the limiting part is connected with the limiting part to limit the rotation of the swing arm.

Preferably, the lower end of the side wall of the lower support is provided with a through groove communicated with the accommodating cavity, the groove walls at two ends of the through groove are provided with shaft holes, and the swing arm is provided with a convex shaft rotationally matched with the shaft holes; the other end of the limiting part, including the swing arm, is provided with a limiting groove, the limiting part comprises a second sliding block and a clamping hook connected to the second sliding block, and a protrusion matched with the clamping hook in a fastening manner is arranged on the groove wall of one end, far away from the second rack, of the limiting groove; the upper clamping plate is internally provided with a second sliding groove, the second sliding block is connected in the second sliding groove in a sliding manner, and a reset mechanism which enables the clamping hook to keep close to the convex trend is arranged between the second sliding groove and the second sliding block.

Preferably, the sliding direction of the second sliding block is perpendicular to the rotating axis of the swing arm, the hook is located at one end of the second sliding block, a positioning column is arranged at the end part of one end of the second sliding block, the reset mechanism comprises a second spring, one end of the second spring is sleeved on the positioning column, and the other end of the second spring abuts against the inner wall of the second sliding chute; a push button is arranged on the upper end face of the second sliding block, and the upper end of the push button and the clamping hook extend out of the second sliding groove and are positioned outside the upper clamping plate; the other end of the swing arm is provided with a handle.

Drawings

Fig. 1 is a front schematic view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is an enlarged schematic view of a in fig. 2.

FIG. 4 is an exploded view of the first housing and the second housing;

fig. 5 is an exploded view of the first housing and the second housing;

FIG. 6 is an exploded view of the chest support frame and the chest support frame cover plate;

FIG. 7 is a perspective view of the chest support frame;

fig. 8 is a schematic plan view of the present invention;

FIG. 9 is a schematic view of a three-dimensional structure of an upper bracket;

FIG. 10 is a bottom structure view of the upper bracket;

FIG. 11 is a perspective view of the handle;

fig. 12 is a perspective view of the second slider.

As shown in the figure: 1. the chest support bracket comprises a chest support bracket body, 10, a containing groove, 101, a first sliding groove, 1011, an installation notch, 102, a clamping groove, 11, a chest support bracket cover plate, 12, a bump, 121, a third through hole, 122, a fourth through hole, 123, a spring sheet, 1231, a first convex tooth, 1232, a connecting rod, 13, an insert, 14, a button, 141, a deflector rod, 2, a chest support, 21, a first shell body, 210, a first groove, 2100, a first through hole, 2101, a first barb, 2102, a guide pipe, 211, a first slider, 2110, a second through hole, 2111, a limiting ring, 22, a second shell body, 220, a second groove, 2201, a second barb, 2202, a guide column, 2203 and a connecting pipe, 23, a limiting guide pillar, 231, a large-diameter section, 232, a small-diameter section, 24, a limiting cover plate, 241, a positioning groove, 242, a blocking block, 243, a clamping block, 25, a first spring, 3, an upper bracket, 30, an accommodating cavity, 301, an opening, 31, a third sliding groove, 311, a first rack, 32, an upper clamping plate, 321, a second sliding groove, 33, a swinging arm, 331, a second convex tooth, 332, a limiting groove, 3321, a protrusion, 333, a convex shaft, 334, a handle, 34, a limiting part, 341, a second sliding block, 1, a clamping hook, 3412, a push button, 3413, a positioning column, 342, a second spring, 35, a through groove, 341351, a shaft hole, 4, a lower bracket, 41 and a second rack.

Detailed Description

The invention is further described with reference to the drawings and the detailed description.

As shown in fig. 1, 2, 3 and 4, a sitting posture corrector comprises a chest support assembly and a base assembly, wherein the chest support assembly comprises a chest support bracket 1 and a chest support 2 arranged on the chest support bracket 1, and the chest support bracket 1 is connected to the base assembly. The chest support bracket 1 is in a cross shape, and the number of the chest supports 2 is four, and the four chest supports are respectively connected with the four cross-shaped end parts of the chest support bracket 1. The chest support 2 comprises a first shell 21 and a second shell 22, one surface of the first shell 21 is opposite to one surface of the second shell 22, and an elastic piece for keeping the first shell 21 and the second shell 22 away from each other and an anti-falling mechanism for limiting the first shell and the second shell to separate are arranged between the first shell 21 and the second shell 22. One side of the first housing 21 is provided with a first groove 210, one side of the second housing 22 is provided with a second groove 220, the anti-falling mechanism comprises a first barb 2101 and a second barb 2201 which are fastened with each other, the number of the first barb 2101 and the second barb 2201 is two, the two first barbs 2101 are symmetrically arranged in the first groove 210, the two second barbs 2201 are symmetrically arranged in the second groove 220, the first barb 2101 is connected to the first groove 210, the second barb 2201 is connected to the second groove 220, the first groove 210 is provided with a guide tube 2102, the second groove 220 is provided with a guide column 2202 corresponding to the guide tube 2102, and the guide column 2202 is inserted into the guide tube 2102 and is connected in a sliding manner along the axial direction of the guide tube 2102.

The other side (the side far away from the human body when in use) of the first shell 21 is provided with a first sliding block 211, four crisscross end parts of the chest support bracket 1 are respectively provided with a first sliding groove 101, the first sliding block 211 is connected with the first sliding groove 101 in a sliding manner, and a sliding limiting mechanism is arranged between the first sliding block 211 and the first sliding groove 101. One side of the chest support bracket 1, which is far away from the chest support 2, is provided with an accommodating groove 10, the first sliding groove 101 is positioned on one side of the chest support bracket 1, which is close to the chest support 2, and is communicated with the accommodating groove 10, the outer wall of the first sliding block 211 is provided with a limiting ring 2111, and the limiting ring 2111 is movably connected in the accommodating groove 10.

The first groove 210 is provided with a first through hole 2100, the first slider 211 is provided with a second through hole 2110 communicated with the first through hole 2100, the sliding limiting mechanism comprises a limiting guide pillar 23 and a limiting cover plate 24, the limiting cover plate 24 is connected in the accommodating groove 10 and corresponds to the first sliding groove 101, the limiting cover plate 24 is provided with at least two positioning grooves 241, and the positioning grooves 241 are uniformly distributed along the length direction of the first sliding groove 101. The limiting guide post 23 comprises a large-diameter section 231 and a small-diameter section 232, the large-diameter section 231 is located in the first groove 210, and the small-diameter section 232 penetrates through the first through hole 2100 and the second through hole 2110 and then is inserted into the positioning groove 241; the second groove 220 is provided with a connecting pipe 2203, the elastic member is a first spring 25, one end of the first spring 25 abuts against the large-diameter section 231, and the other end of the first spring 25 abuts against the connecting pipe 2203. First casing 21 is through the cooperation sliding connection of first slider with first spout on chest support 1, and first spring 25 not only plays and lets first casing 21 and second casing 22 keep keeping away from the trend, still plays to make stop guide post 23 keep being close to the trend of constant head tank 241, and first spring 25 compresses when sliding first casing 21, and first spring 25 rebounds when stop guide post 23 is to another constant head tank 241.

The groove wall of the first sliding groove 101 is provided with an installation notch 1011, a stop block 242 is arranged on the position of the limiting cover plate 24 corresponding to the installation notch 1011, a clamping block 243 is arranged on the outer wall of the limiting cover plate 24, a clamping groove 102 matched with the clamping block 243 in a clamping manner is arranged on the inner wall of the accommodating groove 10, and the chest support bracket 1 further comprises a chest support bracket cover plate 11 covering the notch of the accommodating groove 10. When a product is installed, the limiting guide post 23 is firstly inserted into the first through hole 2100 and the second through hole 2110 of the first shell 21, the first slider 211 of the first shell 21 is aligned with the installation notch 1011 and is installed into the first sliding groove 101, the first spring 25 is placed into the connecting pipe 2203, the guide post 2202 is correspondingly inserted into the guide pipe 2102, the limiting cover plate 24 is installed, and the clamping block 243 is clamped and fixed with the clamping groove 102; the other three chest supports are installed in the same way, and then the chest support bracket cover plate 11 is covered.

The chest support 2 of the sitting posture corrector of the utility model is connected on the chest support bracket 1 in a sliding way and positioned by a sliding limiting mechanism, and can be used for adjusting the chest support 2 in a large angle. Chest support 2 comprises first casing 21 and second casing 22, set up the elastic component between first casing 21 and the second casing 22, interconnect does not break away from between first casing 21 and the second casing 22, and keep a certain distance clearance again, user's health leans on the outer wall of second casing 22 when leaning on chest support 2, and second casing 22 is the one side of keeping away from second recess 20 promptly, along with the compression of elastic component, but the distance automatically regulated between first casing 21 and the second casing 22 of chest support this moment, second casing 22 can more laminate the human body. When the body of a user slightly moves, the chest support 2 does not need to be readjusted, and the chest support 2 can be automatically finely adjusted according to the contact of the human body.

The base component comprises an upper support 3, a third sliding groove 31 is formed in the side wall of one end of the upper portion of the upper support 3, the third sliding groove 31 extends along the height direction of the upper support 3, a protruding block 12 is arranged on one surface, away from the chest support 2, of the chest support 1, the protruding block 12 is connected in the third sliding groove 31 in a sliding mode, a first rack 311 is arranged at the bottom of the third sliding groove 31, a first convex tooth 1231 meshed with the first rack 311 is arranged on the end face of one end of the protruding block 12, and a acting piece enabling the first convex tooth 1231 to keep being close to the first rack 311 is arranged in the upper support 3.

Bump 12 is equipped with hollow cavity, the one end that bump 12 is close to first rack 311 is equipped with third through-hole 121, be equipped with shell fragment 123 on the third through-hole 121, shell fragment 123 lower extreme and third through-hole 121 edge connection, first dogtooth 1231 is located the outer wall of shell fragment 123 upper end, the one side that the nearly chest of chest support 1 held in the palm 2 is equipped with fourth through-hole 122 with bump 12 cavity intercommunication, fourth through-hole 122 is equipped with mold insert 13, mold insert 13 extends along fourth through-hole 122, the middle part forms the active aperture, the effect piece includes button 14, button 14 is equipped with driving lever 141, driving lever 141 is sliding connection from top to bottom in mold insert 13, driving lever 141 one end is passed the active aperture of mold insert 13 and is located bump 12 cavities, shell fragment 123 inner wall is equipped with connecting rod 1232, the tip of driving lever 141 one end offsets with connecting rod 1232 when driving lever 141 slides to mold insert 13 upper end. The end of one end of the shift lever 141 is in transition with the upper end face through the upper inclined plane, the end of the free end of the connecting rod 1232 is in transition with the lower end face through the lower inclined plane, the shift lever 141 conveniently slides down and then is separated from the connecting rod 1232, and meanwhile, the shift lever 141 conveniently slides back to a state where the shift lever 1232 abuts.

The utility model discloses chest of position of sitting unscrambler holds in palm altitude mixture control structure utilizes the upper and lower sliding connection of lug 12 in third spout 31 to realize the upper and lower altitude mixture control that the chest held in the palm the subassembly, and it is spacing from top to bottom to realize the chest through first dogtooth 1231 and the meshing of first rack 311. When the shift lever 141 is located at the upper end of the insert 13, the end of one end of the shift lever 141 abuts against the connecting rod 1232, the first convex tooth 1231 is engaged with the first rack 311, the up-and-down movement of the bump 11 is limited, and the chest support assembly is fixed on the upper bracket 3. After the button 14 is dialed downwards, the shifting lever 141 slides to the lower end of the insert 13, the end part of one end of the shifting lever 141 abuts against the connecting rod 1232, the first convex tooth 1231 can be separated from the engagement of the first rack 311 by utilizing the elasticity of the elastic sheet 123, the bump 12 can slide up and down in the third sliding groove 31, the chest support assembly slides up and down to a required position, the button 14 is dialed upwards, the shifting lever 141 slides to the upper end of the insert 13, the end part of one end of the shifting lever 141 abuts against the connecting rod 1232, and the first convex tooth 1231 is reengaged with the first rack 311.

The clamping table structure of the sitting posture corrector comprises an upper clamping plate 32 and a lower clamping plate, wherein the upper clamping plate 32 is connected to the lower end of an upper support 3, the lower clamping plate is connected to the lower end of a lower support 4, a containing cavity 30 is arranged in the upper support 3, an opening 301 is formed in the lower end of the upper support, and the lower support 4 is sleeved in the containing cavity 30 and is connected in a sliding mode along the height direction of the upper support 3. The outer wall of one end of the lower bracket 3 is provided with a second rack 41 extending along the height direction, the lower end of the side wall of the upper bracket 3 is connected with a swing arm 33 in a rotating manner, the rotating axis of the swing arm 33 is perpendicular to the length direction of the swing arm 33, one end of the swing arm 33 in the length direction is provided with a second convex tooth 331 meshed with the second rack 41, the other end of the swing arm 33 in the length direction is provided with a limiting part, and the upper clamp plate 32 is provided with a limiting part 34 connected with the limiting part in a matched manner. The limiting member includes a second sliding block 341 and a hook 3411 connected to the second sliding block 341.

The lower extreme of 4 lateral walls of lower carriage is equipped with the logical groove 35 with holding chamber 30 intercommunication, and logical groove 35 extends to splint 32 and is equipped with the groove of dodging, dodges the groove and is located the junction of splint 32 and logical groove 35, gives swing arm 33 sufficient space when rotating. Shaft holes 351 are formed in the groove walls of the two ends of the through groove 35, and a protruding shaft 333 which is in running fit with the shaft holes 351 is arranged on the swing arm 33.

The limiting part comprises a limiting groove 332 and a handle 334 arranged at the other end of the swing arm 33, the limiting groove 332 is located at one end of the swing arm 33 far away from the second convex tooth 331, and a protrusion 3321 in fastening fit with the hook 3411 is arranged on a groove wall of one end of the limiting groove 332 far away from the second rack 331.

The upper clamp plate 32 is provided with a second sliding slot 321 therein, the length direction of the second sliding slot 321 is perpendicular to the rotation axis of the swing arm 33, the second sliding block 341 is connected in the second sliding slot 321 in a sliding manner along the length direction thereof, the sliding direction of the second sliding block 341 is perpendicular to the rotation axis of the swing arm 33, a reset mechanism for keeping the hook 3411 close to the protrusion 3321 is provided between the second sliding slot 321 and the second sliding block 341, and the reset mechanism includes a second spring 25.

The hook 3411 is located at one end of the second sliding block 341, a positioning post 3413 is disposed at an end of one end of the second sliding block 341, one end of the second spring 25 is sleeved on the positioning post 3413, and the other end of the second spring 25 abuts against an inner wall of the second sliding groove 321. A push button 3412 is disposed in the middle of the upper end surface of the second sliding block 341, and the push button 3412 is disposed to facilitate pushing the second sliding block 341. The upper end of the push button 3412 and the hook 3411 both extend out of the second sliding groove 321 and are located outside the upper clamping plate 32, a limiting plate is arranged in a notch of the second sliding groove 321, the limiting plate is located between the push button 3412 and the hook 3411 to prevent the limiting member 34 from separating from the second sliding groove 321, a movable groove of the hook 3411 is formed by the limiting plate and a groove wall of the second sliding groove 321 near the swing arm 33, and a movable groove of the push button 3412 is formed by the limiting plate and a groove wall of the second sliding groove 321 far away from the swing arm 33.

The utility model discloses the position of sitting unscrambler passes through second dogtooth 331 on the swing arm 33 and the meshing of second rack 41 on the lower carriage 4, and it is spacing to make the upper and lower slip of lower carriage 4 and upper bracket 3, and the table is cliied to punch holder 32 and lower plate, and swing arm 33 rotates back second dogtooth 331 and breaks away from with second rack 41, and lower carriage 4 can slide from top to bottom for upper bracket 3. The utility model discloses when the double-layered table structure of position of sitting unscrambler was in second dogtooth 331 and the engaged state of second rack 41, the terminal surface was laminated with the up end of punch holder 32 under the swing arm 33, pothook 3411 and the protruding 3321 lock joint in the spacing groove 332 made the rotation of swing arm 33 spacing. After the push button 3412 is pushed toward the through slot 35, the second spring 25 is compressed, the hook 3411 is disengaged from the protrusion 3321, the swing arm 33 can rotate freely, the second protrusion 331 is disengaged from the second rack 41 after the swing arm 33 rotates, the lower rack 4 can slide up and down relative to the upper rack 3, the second protrusion 331 is engaged with the second rack 41 after the swing arm 33 rotates to the original position, and the second spring 25 is reset to push the second slider 341 to lock the hook 3411 with the protrusion 3321 in the limiting slot 332.

Claims

1. A sitting posture corrector, comprising a chest support assembly and a base assembly, wherein the chest support assembly comprises a chest support bracket (1) and a chest support (2) arranged on the chest support bracket (1), the chest support bracket (1) is connected on the base assembly, characterized in that: chest support (2) include first casing (21) and second casing (22), the one side of first casing (21) sets up with the one side of second casing (22) relatively, is equipped with between first casing (21) one side and second casing (22) one side and makes both keep away from the elastic component of trend and restrict the anti-disengaging mechanism that both break away from, the another side of first casing (21) is equipped with first slider (211), be equipped with first spout (101) on chest support (1), first slider (211) and first spout (101) sliding connection, be equipped with slip stop gear between first slider (211) and first spout (101).

2. A sitting posture corrector as claimed in claim 1, wherein: one surface of the chest support bracket (1) far away from the chest support (2) is provided with an accommodating groove (10), the first sliding groove (101) is positioned on one surface of the chest support bracket (1) near the chest support (2) and is communicated with the accommodating groove (10), the outer wall of the first sliding block (211) is provided with a limiting ring (2111), and the limiting ring (2111) is movably connected in the accommodating groove (10); one side of the first shell (21) is provided with a first groove (210), one side of the second shell (22) is provided with a second groove (220), the anti-falling mechanism comprises a first barb (2101) and a second barb (2201) which are buckled with each other, the first barb (2101) is connected onto the first groove (210), the second barb (2201) is connected onto the second groove (220), the first groove (210) is provided with a guide pipe (2102), the second groove (220) is provided with a guide column (2202) corresponding to the guide pipe (2102), and the guide column (2202) is inserted into the guide pipe (2102) and is in sliding connection along the axial direction of the guide pipe.

3. A sitting posture corrector as claimed in claim 2, wherein: the first groove (210) is provided with a first through hole (2100), the first slider (211) is provided with a second through hole (2110) communicated with the first through hole (2100), the sliding limiting mechanism comprises a limiting guide post (23) and a limiting cover plate (24), the limiting cover plate (24) is connected in the accommodating groove (10) and corresponds to the first sliding groove (101), the limiting cover plate (24) is provided with at least two positioning grooves (241), the limiting guide post (23) comprises a large-diameter section (231) and a small-diameter section (232), the large-diameter section (231) is positioned in the first groove (210), and the small-diameter section (232) penetrates through the first through hole (2100) and the second through hole (2110) and then is inserted into the positioning grooves (241); the connecting pipe (2203) is arranged on the second groove (220), the elastic piece is a first spring (25), one end of the first spring (25) abuts against the large-diameter section (231), and the other end of the first spring (25) abuts against the inside of the connecting pipe (2203).

4. A sitting posture corrector as claimed in claim 3, wherein: the cell wall of first spout (101) is equipped with installation breach (1011), be equipped with sprue (242) on the position that spacing apron (24) correspond installation breach (1011), be equipped with fixture block (243) on spacing apron (24) outer wall, be equipped with on storage tank (10) inner wall with fixture block (243) joint complex draw-in groove (102), chest support bracket (1) is still including chest support bracket cover plate (11) that covers storage tank (10) notch.

5. A sitting posture corrector as claimed in claim 1, wherein: the base subassembly includes upper bracket (3), the one end lateral wall on upper bracket (3) upper portion is equipped with third spout (31), third spout (31) extend along upper bracket (3) direction of height and set up, the one side that chest support (2) were kept away from in chest support (1) is equipped with lug (12), lug (12) sliding connection is in third spout (31), the tank bottom of third spout (31) is equipped with first rack (311), the terminal surface of lug (12) one end is equipped with first dogtooth (1231) with first rack (311) meshing, be equipped with in upper bracket (3) and make first dogtooth (1231) keep being close to the effect of first rack (311) trend.

6. A sitting posture corrector as claimed in claim 5, wherein: the improved chest support is characterized in that the bump (12) is provided with a hollow cavity, a third through hole (121) is formed in one end, close to the first rack (311), of the bump (12), an elastic sheet (123) is arranged on the third through hole (121), the lower end of the elastic sheet (123) is connected with the edge of the third through hole (121), the first convex tooth (1231) is located on the outer wall of the upper end of the elastic sheet (123), a second through hole (2110) communicated with the hollow cavity of the bump (12) is formed in one surface, close to the chest support (2), of the chest support (1), an insert (13) is arranged in the second through hole (2110), the action piece comprises a button (14), the button (14) is provided with a shifting rod (141), the shifting rod (141) is connected in the insert (13) in a vertical sliding mode, one end of the shifting rod (141) penetrates through the insert (13) and is located in the cavity of the bump (12), a connecting rod (1232) is arranged on the inner wall of the elastic sheet (123), and the end, when the shifting rod (141) slides to the upper end of the insert (13), the upper end of the shifting rod (141) is abutted against the connecting rod (1232).

7. A sitting posture corrector as claimed in claim 5, wherein: the base component further comprises a lower support (4), a lower clamping plate is arranged at the lower end of the lower support (4), an upper clamping plate (32) is arranged at the lower end of the upper support (3), an accommodating cavity (30) is arranged at the lower part of the upper support (3), an opening (301) is formed in the end part of the lower end, and the lower support (4) is sleeved in the accommodating cavity (30) and is connected in a sliding mode along the height direction of the upper support (3); be equipped with on one end outer wall of lower carriage (4) along second rack (41) that the direction of height extends, the lower extreme of upper bracket (3) lateral wall rotates and is connected with swing arm (33), the one end of swing arm (33) is equipped with second dogtooth (331) with second rack (41) meshing, and the other end of swing arm (33) is equipped with spacing portion, be equipped with on punch holder (32) and be connected complex locating part (34) with spacing portion.

8. A sitting posture corrector as claimed in claim 7, wherein: the lower end of the side wall of the upper support (3) is provided with a through groove (35) communicated with the accommodating cavity (30), the groove walls at two ends of the through groove (35) are provided with shaft holes (351), and the swing arm (33) is provided with a convex shaft (333) in rotating fit with the shaft holes (351); the other end of the limiting part, including the swing arm (33), is provided with a limiting groove (332), the limiting part (34) comprises a second sliding block (341) and a hook (3411) connected to the second sliding block (341), and a protrusion (3321) in buckling fit with the hook (3411) is arranged on the groove wall of one end, far away from the second rack (41), of the limiting groove (332); a second sliding groove (321) is arranged in the upper clamping plate (32), the second sliding block (341) is connected in the second sliding groove (321) in a sliding manner, and a reset mechanism which enables the clamping hook (3411) to keep a trend of being close to the protrusion (3321) is arranged between the second sliding groove (321) and the second sliding block (341).

9. A sitting posture corrector as claimed in claim 8, wherein: the sliding direction of the second sliding block (341) is perpendicular to the rotating axis of the swing arm (33), the hook (3411) is positioned at one end of the second sliding block (341), a positioning column (3413) is arranged at the end part of one end of the second sliding block (341), the resetting mechanism comprises a second spring (342), one end of the second spring (342) is sleeved on the positioning column (3413), and the other end of the second spring (342) abuts against the inner wall of the second sliding groove (321); a push button (3412) is arranged on the upper end face of the second sliding block (341), and the upper end of the push button (3412) and the hook (3411) both extend out of the second sliding groove (321) and are positioned outside the upper clamping plate (32); the other end of the swing arm (33) is provided with a handle (334).