CN214341177U - Connecting structure of chair backrest and seat plate - Google Patents
Connecting structure of chair backrest and seat plate Download PDFInfo
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- CN214341177U CN214341177U CN202023266113.6U CN202023266113U CN214341177U CN 214341177 U CN214341177 U CN 214341177U CN 202023266113 U CN202023266113 U CN 202023266113U CN 214341177 U CN214341177 U CN 214341177U
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- connecting plate
- backrest
- seat
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Abstract
A connecting structure of a chair backrest and a seat plate comprises a chair seat connecting piece, a chair back fixing frame, a movable connecting structure and a locking structure, wherein the movable connecting structure can adjust the position of the backrest in the horizontal direction and the vertical direction; the movable connecting structure comprises a connecting plate connected with the chair back fixing frame, a pair of fixing plates positioned on two sides of the connecting plate are arranged on the chair seat connecting piece, guide grooves are formed in the fixing plates, guide plates matched with the guide grooves are arranged on two sides of the connecting plate, an abdicating space is formed between the fixing plates, and the connecting plate extends out of the abdicating space to form a protruding part; the locking structure comprises a first locking column penetrating through the connecting plate and a first locking base matched and connected with the first locking column, and the first locking column is provided with a locking surface used for acting with the extending part. The utility model discloses, greatly reduce and avoid the connecting plate to the destruction of peripheral structure when the locking even, promoted whole connection structure's life, have adjust that the jam is felt low, adjust advantages such as convenient.
Description
Technical Field
The utility model relates to a chair accessory field especially relates to a connection structure of chair back and bedplate.
Background
The function of adjusting the position of the chair backrest in the front-back direction and the up-down direction is an important breakthrough in the field of chairs, and the application performance of the chair is improved.
As application number is CN201520810394.7 patent and has announced a coupling mechanism for chair back and seat, including tray and swing joint back of the chair mount on the tray, be equipped with logical groove on the tray, logical inslot has held the connecting rod of back of the chair mount, be equipped with locking device on leading to the groove outer wall, in this patent, must exist between connecting rod and the logical groove and can satisfy the connecting rod and remove required certain clearance in leading to the groove, and when accomplishing back position adjustment back and utilizing locking device to fix connecting rod and tray mutually, there is following problem: because locking device leads to the groove outer wall to warp through the oppression, and then makes the connecting rod that leads to in the groove compress tightly on leading to the groove cell wall, reaches the purpose of locking connecting rod, so, lead to the groove outer wall fragile when the locking, whole coupling mechanism life is short, moreover, lead to the groove outer wall and the connecting rod contact after warping, still can influence the regulation performance when next adjustment connecting rod position, concrete body is that the sense of blocking is strong, the regulation is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a connection structure of chair back and bedplate, the design that leads to the groove has been cancelled, and with the design of locking post on the connecting plate, behind adjustment back position, utilize the cooperation of locking post one and locking base to adjust, directly compress tightly the connecting plate on the seat support connecting piece and realize locking, greatly reduced the destruction of connecting plate to peripheral structure when the locking even, whole connection structure's life has been promoted, it feels low to have the regulation jam, adjust advantages such as convenient.
A connecting structure of a chair backrest and a seat plate comprises a chair seat connecting piece, a chair back fixing frame, a movable connecting structure for connecting the chair seat connecting piece and the chair back fixing frame, and a locking structure for fixing the movable connecting structure, wherein the movable connecting structure can adjust the position of the chair backrest in the horizontal direction and the vertical direction, the movable connecting structure comprises a connecting plate connected with the chair back fixing frame, a pair of fixing plates positioned at two sides of the connecting plate are arranged on the chair seat connecting piece, guide grooves are arranged on the fixing plates, guide plates matched with the guide grooves are arranged at two sides of the connecting plate, an abdicating space is formed between the fixing plates, and the connecting plate extends out of the abdicating space to form a protruding part;
the locking structure comprises a first locking column penetrating through the connecting plate and a first locking base arranged on the seat connecting piece and connected with the first locking column in a matched mode, the first locking column is provided with a locking surface used for acting with the extending part, and the connecting plate is provided with a long groove for the first locking column to penetrate through.
In the technical scheme, the position of the backrest in the horizontal direction and the vertical direction can be adjusted through the movable connecting structure, and the movable connecting structure is fixed through the locking structure after the position of the backrest is adjusted. And, compared with the prior art, this technical scheme has cancelled the design that leads to the groove to with locking post one design on the connecting plate, after the adjustment back position, utilize the cooperation of locking post one and locking base to adjust, directly compress tightly the connecting plate and realize locking on the seat support connecting piece, greatly reduced or even avoided the connecting plate to the destruction of peripheral structure when the locking, promoted whole connection structure's life, have advantages such as adjust that the jam is felt low, the regulation is convenient.
Preferably, the guide way is an oblique guide way with a certain included angle with the horizontal direction, and the connecting plate is of an oblique movable structure. In this scheme, utilize the removal of connecting plate in oblique guide way, directly realize back water level and vertical position adjustment, simple and convenient.
Preferably, the included angle A between the guide groove and the horizontal direction is 37-45 degrees. Reasonable included angle can be increased
Preferably, the guide groove is a horizontal guide groove coincident with the horizontal direction, the connecting plate is of a horizontal movable structure, and the connecting plate is connected with the chair back fixing frame through a vertical adjusting structure. In this scheme, through the horizontal position of the removal adjustment back of connecting plate in horizontal guide way, adjust the vertical position of back through vertical regulation structure, through twice adjustment promptly, realize the adjustment of back in horizontal direction and vertical direction.
Preferably, the vertical adjusting structure comprises a fixed vertical rail connected with the connecting plate and used for movably mounting the chair back fixing frame, and a locking structure II for fixing the chair back fixing frame.
Preferably, the locking structure II comprises a locking column II arranged on the chair back fixing frame, a locking base II in matched connection with the locking column II is arranged on the fixed vertical rail, and a vertical long groove I for the locking column II to penetrate through is arranged on the chair back fixing frame.
Preferably, the vertical adjusting structure comprises an installation block arranged on the connecting plate, a vertical movable rod arranged on the installation block and used for fixedly installing the chair back fixing frame, and a locking structure III for fixing the vertical movable rod.
Preferably, the locking structure III comprises a locking column III arranged on the vertical movable rod, a locking base III in matched connection with the locking column III is arranged on the connecting plate, and a vertical long groove II for the locking column III to penetrate through is arranged on the vertical movable rod.
Preferably, the vertical movable rod penetrates through the mounting block; the locking structure III comprises a tightening rod which is arranged on the mounting block and is acted with the vertical movable rod.
To sum up, the utility model discloses following beneficial effect has:
1: the utility model discloses, cancelled the design that leads to the groove to with the design of locking post one on the connecting plate, behind adjustment back position, utilize the cooperation of locking post one and locking base one to adjust, directly compress tightly the connecting plate and realize locking on the seat support connecting piece, greatly reduced or even avoided the connecting plate to the destruction of peripheral structure when the locking, promoted whole connection structure's life, have to adjust advantages such as the jam is felt low, the regulation is convenient.
Drawings
FIG. 1 is a first structural view of a connecting structure of a backrest and a seat plate of a chair;
FIG. 2 is a second structural view of a connecting structure of a backrest and a seat plate of a chair;
FIG. 3 is a schematic view showing a third structure of the coupling structure of the back support and the seat plate of the chair;
FIG. 4 is a schematic view showing a fourth structure of the connecting structure of the back support and the seat plate of the chair;
FIG. 5 is a schematic view of the connection plate and the locking structure of FIGS. 1-4 shown in a bottom view;
fig. 6 is a schematic view of the connection plate and the locking structure in fig. 1-4 in section.
Detailed Description
The present invention will be further explained by the following embodiments with reference to the attached drawings.
Example 1: as shown in fig. 1 and 5-6, a connecting structure of a backrest and a seat plate of a chair comprises a seat connecting part 1, a backrest fixing frame 2, a movable connecting structure 3 connecting the seat connecting part 1 and the backrest fixing frame 2, and a locking structure 4 for fixing the movable connecting structure 3, wherein the movable connecting structure 3 can adjust the position of the backrest in the horizontal direction and the vertical direction; specifically, the movable connecting structure 3 comprises a connecting plate 31 connected with the chair back fixing frame 2, a pair of fixing plates 11 located on two sides of the connecting plate 31 are arranged on the chair seat connecting piece 1, guide grooves 12 are arranged on the fixing plates 11, the guide grooves 12 face the connecting plate 31, guide plates 32 matched with the guide grooves 12 are arranged on two sides of the connecting plate 31, an abdicating space 11-1 is formed between the fixing plates 11, and the connecting plate 31 extends out of the abdicating space 11-1 to form a protruding part; in this embodiment, the guide groove 12 is an oblique guide groove forming an included angle with the horizontal direction, and accordingly, the connecting plate 31 is an oblique movable structure.
The locking structure 4 comprises a first locking column 41 penetrating through the connecting plate 31 and a first locking base 42 arranged on the seat connecting piece 1 and matched and connected with the first locking column 41, a locking surface 411 used for acting with the extending part is arranged on the first locking column 41, a long groove 33 for the first locking column 41 to penetrate through is arranged on the connecting plate 31, the first locking column 41 penetrates through the long groove 33, and the first locking column 41 and the first locking base 42 are preferably connected through a threaded structure.
In the technical scheme, the position of the backrest in the horizontal direction and the vertical direction can be adjusted through the movable connecting structure 3, and after the position of the backrest is adjusted, the movable connecting structure 3 is fixed through the locking structure 4. And, compared with the prior art, this technical scheme has cancelled the design that leads to the groove to with locking post one design on the connecting plate, after the adjustment back position, utilize the cooperation of locking post one and locking base to adjust, directly compress tightly the connecting plate and realize locking on the seat support connecting piece, greatly reduced or even avoided the connecting plate to the destruction of peripheral structure when the locking, promoted whole connection structure's life, have advantages such as adjust that the jam is felt low, the regulation is convenient.
Preferably, the included angle a between the guide groove 12 and the horizontal direction is 37 ° -45 °.
Example 2: as shown in fig. 2 and 5-6, a connecting structure of a backrest and a seat plate of a chair comprises a seat connecting part 1, a backrest fixing frame 2, a movable connecting structure 3 connecting the seat connecting part 1 and the backrest fixing frame 2, and a locking structure 4 for fixing the movable connecting structure 3, wherein the movable connecting structure 3 can adjust the position of the backrest in the horizontal direction and the vertical direction; the movable connecting structure 3 comprises a connecting plate 31 connected with the chair back fixing frame 2, a pair of fixing plates 11 positioned at two sides of the connecting plate 31 are arranged on the chair seat connecting piece 1, guide grooves 12 are arranged on the fixing plates 11, the guide grooves 12 face the connecting plate 31, guide plates 32 matched with the guide grooves 12 are arranged at two sides of the connecting plate 31, an abdicating space 11-1 is formed between the fixing plates 11, and the connecting plate 31 extends out of the abdicating space 11-1 to form a protruding part; in this embodiment, the guide groove 12 is a horizontal guide groove coinciding with the horizontal direction, and when corresponding, the connecting plate 31 is a horizontal movable structure, and the connecting plate 31 is connected with the chair back fixing frame 2 through a vertical adjusting structure;
the locking structure 4 comprises a first locking column 41 penetrating through the connecting plate 31 and a first locking base 42 arranged on the seat connecting piece 1 and matched and connected with the first locking column 41, a locking surface 411 used for acting with the extending part is arranged on the first locking column 41, a long groove 33 for the first locking column 41 to penetrate through is arranged on the connecting plate 31, the first locking column 41 penetrates through the long groove 33, and the first locking column 41 and the first locking base 42 are preferably connected through a threaded structure.
In this technical scheme, swing joint structure 3, through the horizontal position of connecting plate 31 removal adjustment back in the horizontal guide way, through the vertical position of vertical regulation structure regulation back, through twice adjustment promptly, realize the adjustment of back in horizontal direction and vertical side, after adjustment back position, realize fixing swing joint structure 3 through locking structure 4. And, compared with the prior art, this technical scheme has cancelled the design that leads to the groove to with locking post one design on the connecting plate, after the adjustment back position, utilize the cooperation of locking post one and locking base to adjust, directly compress tightly the connecting plate and realize locking on the seat support connecting piece, greatly reduced or even avoided the connecting plate to the destruction of peripheral structure when the locking, promoted whole connection structure's life, have advantages such as adjust that the jam is felt low, the regulation is convenient.
In this embodiment, the vertical adjusting structure includes a fixed vertical rail 341 connected to the connecting plate 31 and used for movably mounting the seat back fixing frame 2, and a second locking structure for fixing the seat back fixing frame 2, specifically, the second locking structure includes a second locking column 342 disposed on the seat back fixing frame 2, a second locking base 343 connected to the second locking column 342 in a matching manner is disposed on the fixed vertical rail 341, for the specific arrangement of the second locking base 343, the second locking base may be embedded in a groove bottom surface of a first vertical guide groove 3411 of the fixed vertical rail 341, a first vertical long groove 344 through which the second locking column 342 passes is disposed on the seat back fixing frame 2, and the second locking column 342 is preferably connected to the second locking base 343 through a threaded structure.
Example 3: as shown in fig. 3 and 5-6, a connecting structure of a backrest and a seat plate of a chair comprises a seat connecting part 1, a backrest fixing frame 2, a movable connecting structure 3 connecting the seat connecting part 1 and the backrest fixing frame 2, and a locking structure 4 for fixing the movable connecting structure 3, wherein the movable connecting structure 3 can adjust the position of the backrest in the horizontal direction and the vertical direction; the movable connecting structure 3 comprises a connecting plate 31 connected with the chair back fixing frame 2, a pair of fixing plates 11 positioned at two sides of the connecting plate 31 are arranged on the chair seat connecting piece 1, guide grooves 12 are arranged on the fixing plates 11, the guide grooves 12 face the connecting plate 31, guide plates 32 matched with the guide grooves 12 are arranged at two sides of the connecting plate 31, an abdicating space 11-1 is formed between the fixing plates 11, and the connecting plate 31 extends out of the abdicating space 11-1 to form a protruding part; in this embodiment, the guide groove 12 is a horizontal guide groove coinciding with the horizontal direction, and when corresponding, the connecting plate 31 is a horizontal movable structure, and the connecting plate 31 is connected with the chair back fixing frame 2 through a vertical adjusting structure;
the locking structure 4 comprises a first locking column 41 penetrating through the connecting plate 31 and a first locking base 42 arranged on the seat connecting piece 1 and matched and connected with the first locking column 41, a locking surface 411 used for acting with the extending part is arranged on the first locking column 41, a long groove 33 for the first locking column 41 to penetrate through is arranged on the connecting plate 31, the first locking column 41 penetrates through the long groove 33, and the first locking column 41 and the first locking base 42 are preferably connected through a threaded structure.
In this technical scheme, swing joint structure 3, through the horizontal position of connecting plate 31 removal adjustment back in the horizontal guide way, through the vertical position of vertical regulation structure regulation back, through twice adjustment promptly, realize the adjustment of back in horizontal direction and vertical side, after adjustment back position, realize fixing swing joint structure 3 through locking structure 4. And, compared with the prior art, this technical scheme has cancelled the design that leads to the groove to with locking post one design on the connecting plate, after the adjustment back position, utilize the cooperation of locking post one and locking base to adjust, directly compress tightly the connecting plate and realize locking on the seat support connecting piece, greatly reduced or even avoided the connecting plate to the destruction of peripheral structure when the locking, promoted whole connection structure's life, have advantages such as adjust that the jam is felt low, the regulation is convenient.
In this embodiment, the vertical adjusting structure includes an installation block 340 disposed on the connection plate 31, a vertical movable rod 345 disposed on the installation block 340 and used for fixedly installing the chair back fixing frame 2, and a third locking structure for fixing the vertical movable rod 345. The locking structure III comprises a locking column III 346 arranged on the vertical movable rod 345, a locking base III 347 matched and connected with the locking column III 346 is arranged on the connecting plate 31, the locking base III 347 can be embedded on the bottom surface of a vertical guide groove II 3401 of the mounting block 340 for specific arrangement, a vertical long groove II 348 for the locking column III 346 to pass through is arranged on the vertical movable rod 345, and the locking column III 346 and the locking base III 347 are preferably connected through a thread structure.
Example 4: unlike embodiment 3, as shown in fig. 4, in this embodiment, the vertical movable rod 345 passes through the mounting block 340; the third locking structure comprises a tightening rod 349 which is arranged on the mounting block 340 and is used for acting with the vertical movable rod 345, the tightening rod 349 is preferably a threaded rod, and a threaded hole matched with the threaded rod is formed in the mounting block 340.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (9)
1. A connecting structure of a chair backrest and a seat plate comprises a chair seat connecting piece (1), a chair back fixing frame (2), a movable connecting structure (3) for connecting the chair seat connecting piece (1) and the chair back fixing frame (2), and a locking structure (4) for fixing the movable connecting structure (3), wherein the position of the backrest in the horizontal direction and the vertical direction can be adjusted by the movable connecting structure (3),
the movable connecting structure (3) comprises a connecting plate (31) connected with the chair back fixing frame (2), a pair of fixing plates (11) located on two sides of the connecting plate (31) are arranged on the chair seat connecting piece (1), guide grooves (12) are formed in the fixing plates (11), guide plates (32) matched with the guide grooves (12) are arranged on two sides of the connecting plate (31), an abdicating space (11-1) is formed between the fixing plates (11), and the connecting plate (31) extends out of the abdicating space (11-1) to form a protruding part;
the locking structure (4) comprises a first locking column (41) penetrating through the connecting plate (31) and a first locking base (42) arranged on the seat connecting piece (1) and connected with the first locking column (41) in a matched mode, a locking surface (411) used for acting with the extending part is arranged on the first locking column (41), and a long groove (33) allowing the first locking column (41) to penetrate through is formed in the connecting plate (31).
2. A connection structure of a chair back and a seat plate according to claim 1, wherein the guide groove (12) is an inclined guide groove having an angle with the horizontal direction, and the connection plate (31) is an inclined movable structure.
3. The connecting structure of the backrest and the seat plate of the chair as claimed in claim 2, wherein the angle A between the guide groove (12) and the horizontal direction is 37 ° -45 °.
4. The connecting structure of the backrest and the seat plate of the chair as claimed in claim 1, wherein the guide groove (12) is a horizontal guide groove coinciding with the horizontal direction, the connecting plate (31) is a horizontally movable structure, and the connecting plate (31) is connected with the backrest fixing frame (2) through a vertical adjusting structure.
5. The connecting structure of the backrest and the seat plate of the chair as claimed in claim 4, wherein the vertical adjusting structure comprises a fixed vertical rail (341) connected with the connecting plate (31) and used for movably mounting the backrest fixing frame (2), and a second locking structure for fixing the backrest fixing frame (2).
6. The connecting structure of the backrest and the seat plate of the chair as claimed in claim 5, wherein the second locking structure comprises a second locking column (342) disposed on the backrest fixing frame (2), the second locking base (343) is disposed on the fixed vertical rail (341) and is in fit connection with the second locking column (342), and the first vertical slot (344) is disposed on the backrest fixing frame (2) for the second locking column (342) to pass through.
7. The connecting structure of the backrest and the seat plate of the chair as claimed in claim 4, wherein the vertical adjusting structure comprises a mounting block (340) arranged on the connecting plate (31), a vertical movable rod (345) arranged on the mounting block (340) for fixedly mounting the backrest fixing frame (2), and a locking structure III for fixing the vertical movable rod (345).
8. The connecting structure of the backrest and the seat plate of the chair as claimed in claim 7, wherein the third locking structure comprises a third locking column (346) arranged on the vertical movable rod (345), the connecting plate (31) is provided with a third locking base (347) in fit connection with the third locking column (346), and the vertical movable rod (345) is provided with a second vertical slot (348) for the third locking column (346) to pass through.
9. A chair back-to-seat pan connection as claimed in claim 7, wherein the vertically movable rod (345) passes through the mounting block (340); the third locking structure comprises a tightening rod (349) which is arranged on the mounting block (340) and interacts with the vertical movable rod (345).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023266113.6U CN214341177U (en) | 2020-12-30 | 2020-12-30 | Connecting structure of chair backrest and seat plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023266113.6U CN214341177U (en) | 2020-12-30 | 2020-12-30 | Connecting structure of chair backrest and seat plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214341177U true CN214341177U (en) | 2021-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023266113.6U Active CN214341177U (en) | 2020-12-30 | 2020-12-30 | Connecting structure of chair backrest and seat plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214341177U (en) |
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2020
- 2020-12-30 CN CN202023266113.6U patent/CN214341177U/en active Active
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