CN213247902U - Chair back tilting locking structure - Google Patents
Chair back tilting locking structure Download PDFInfo
- Publication number
- CN213247902U CN213247902U CN202021808961.2U CN202021808961U CN213247902U CN 213247902 U CN213247902 U CN 213247902U CN 202021808961 U CN202021808961 U CN 202021808961U CN 213247902 U CN213247902 U CN 213247902U
- Authority
- CN
- China
- Prior art keywords
- chair
- connecting piece
- knob
- screw
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Chairs Characterized By Structure (AREA)
Abstract
The utility model relates to a chair back tilting locking structure, which comprises a chair back and back connecting pieces respectively connected with two sides of the chair back, a locking mechanism for limiting the relative motion of the chair back and the back connecting pieces is arranged in the back connecting pieces, the locking mechanism comprises a knob and an elastic locking plate, the knob can be rotatably arranged on the back connecting pieces, the elastic locking plate is arranged outside the knob, the elastic locking plate comprises a tilting part, the upper end of the tilting part is provided with a locking head part, the lower end of the tilting part is provided with a fixed part, the fixed part is arranged in a fixed groove of the back connecting piece, the locking head part is arranged in a clamping hole of the back connecting piece, the outer side wall of the knob is provided with a limiting block, the limiting block is provided with a limiting hole, a screw passes through the limiting hole and is connected on the back connecting piece, the screw is matched with the limiting hole to limit the rotation angle, the lock head part descends and is clamped in the clamping groove of the chair back to lock the relative movement of the chair back and the back connecting piece.
Description
Technical Field
The utility model relates to a chair technical field indicates a back of the chair inclines and faces upward locking structure especially.
Background
The existing training chairs are various, the chair back with the adjusting function is complex in structure, troublesome to assemble, low in production efficiency and easy to be mistakenly assembled to cause functional loss.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a simple structure is stable, and the equipment is convenient, and the back of the chair that the operation is convenient, production efficiency is high inclines and faces upward the locking structure.
In order to achieve the above object, the utility model adopts the following technical scheme: a chair back tilting locking structure comprises a chair back and back connecting pieces respectively connected to two sides of the chair back, a locking mechanism limiting relative movement of the chair back and the back connecting pieces is arranged in each back connecting piece, the locking mechanism comprises a knob and an elastic locking plate, the knob is rotatably arranged on each back connecting piece, the elastic locking plate is arranged on the outer side of the knob and comprises a tilting portion, a locking head portion is arranged at the upper end of the tilting portion, a fixing portion is arranged at the lower end of the tilting portion, the fixing portion is arranged in a fixing groove of each back connecting piece, the locking head portion is arranged in a clamping hole of each back connecting piece, a limiting block is arranged on the outer side wall of the knob, a limiting hole is arranged on the limiting block, a screw penetrates through the limiting hole and is connected onto each back connecting piece, the screw is matched with the limiting hole to limit the rotation angle of the knob, the limiting block is, the elastic locking plate is pressed downwards, the head part of the lock descends and is clamped in the clamping groove of the chair back, and the relative movement of the chair back and the back connecting piece is locked.
Preferably, the back of the chair includes back frame and back of the body frame, back of the body frame integrated into one piece is in the both sides of back frame, the back of the body frame is equipped with and holds the chamber, it is equipped with the draw-in groove on the lateral wall in chamber to hold, it is equipped with the connecting seat to hold the intracavity, be equipped with the screw in the connecting seat.
Preferably, the back connector is provided with a connecting hole for connecting a screw, a fixing groove for fixing the bottom end of the elastic locking piece, a clamping hole for the head of the elastic locking piece to pass through and a screw hole for connecting the screw.
Preferably, a rotary cover is connected to the rotary knob, and a ring of teeth are arranged on the outer side of the rotary cover.
Preferably, a spring element is arranged between the back connecting piece and the chair back, one end of the spring element is connected in the chair back, and the other end of the spring element is connected in the back connecting piece.
The beneficial effects of the utility model reside in that: the utility model discloses simple structure, production efficiency is high, easy equipment, and convenient to use only needs to rotate the knob gently, makes spring lock plate push down, pins the back of the chair and back of the body connecting piece, makes the unable relative motion between them, and the position of the fixed back of the chair can the tilt angle of the back of the chair of free regulation when spring lock plate bounces, obtains comfortable position of sitting.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an explosion structure diagram of the present invention.
Fig. 3 is a view showing the installation structure of the locking mechanism in the back link.
Fig. 4 is a perspective view of the chair back.
Fig. 5 is a perspective view of the back link.
Fig. 6 is a perspective view of the lock mechanism.
Fig. 7 is a perspective view of the elastic locking piece.
Fig. 8 is a perspective view of the knob.
Fig. 9 is a perspective view of the screw cap.
Description of reference numerals: 1. a chair back; 11. a backrest frame; 12. a back frame; 121. an accommodating chamber; 122. a card slot; 123. a connecting seat; 1231. a screw hole; 2. a back connector; 21. connecting holes; 22. fixing grooves; 23. a clamping hole; 24. a screw hole; 3. a locking mechanism; 31. an elastic locking plate; 311. a tilting part; a lock head portion 312; 313. a fixed part; 32. a knob; 321. a limiting block; 322. a limiting hole; 323. mounting grooves; 33. screwing a cover; 331. a protrusion; 332. mounting blocks; 333. teeth; 34. a screw; 4. a spring element; 5. and (4) bolts.
Detailed Description
Referring to fig. 1-9, the present invention relates to a chair back tilting locking structure, which comprises a chair back 1 and a back connecting member 2 respectively connected to two sides of the chair back 1, wherein a locking mechanism 3 capable of limiting the relative movement of the chair back 1 and the back connecting member 2 is disposed in the back connecting member 2.
Preferably, the back of the chair 1 includes back frame 11 and back frame 12, back frame 12 integrated into one piece is in the both sides of back frame 11, back frame 12 is equipped with and holds chamber 121, be equipped with draw-in groove 122 on the lateral wall top surface that holds chamber 121, it is equipped with connecting seat 123 to hold the interior middle part of chamber 121, be equipped with screw 1231 in the connecting seat 123.
Preferably, the back connecting member 2 is provided with a connecting hole 21, a fixing groove 22, a fastening hole 23 and a screw 34 hole 24.
Preferably, still include bolt 5 and spring element 4, bolt 5 passes connecting hole 21 and screw 1231 threaded connection and makes back of the chair 1 and back of the body link 2 concentric rotation be connected, spring element 4's a pot head is established on connecting seat 123, and the other end is connected on back of the body link 2, and spring element 4 takes place elastic deformation along with back of the chair 1 and the relative motion of back of the body link 2.
Preferably, the locking mechanism 3 includes a knob 32 and an elastic locking plate 31, the elastic locking plate 31 includes an inclining portion 311, the upper end of the inclining portion 311 is provided with a locking head portion 312, the lower end of the inclining portion 311 is provided with a fixing portion 313, the fixing portion 313 is fixedly arranged in the fixing groove 22, the locking head portion 312 is arranged in the clamping hole 23 in a penetrating manner, the outer side of the knob 32 is provided with a limiting block 321, the limiting block 321 is provided with a limiting hole 322, the limiting hole 322 is arc-shaped, the screw 34 penetrates through the limiting hole 322 to be connected with the screw 34 hole 24 so that the knob 32 can be rotatably arranged on the back connecting member 2, the limiting block 321 is normally abutted against the bottom end of the inclining portion 311, at this time, the elastic locking plate 31 is in a bounce state, the inclining angle of the chair back 1 can be freely adjusted, when the knob 32 is rotated, the limiting block 321 gradually moves towards the upper end of the inclining portion, the lock head portion 312 moves down and corresponds the card and establishes in draw-in groove 122, and the position of locking back of the body frame 12 and back of the body connecting piece 2 makes unable relative motion between them, knob 32 outer joint has spiral cover 33, the inside wall of knob 32 is equipped with mounting groove 323, spiral cover 33 is equipped with arch 331, arch 331's lateral wall is equipped with installation piece 332, corresponds the joint through installation piece 332 and mounting groove 323 and makes spiral cover 33 establish outside knob 32, the outside of spiral cover 33 is equipped with a circle of tooth 333, and the increase friction is convenient for rotate hard.
The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.
Claims (5)
1. The utility model provides a back of chair inclination locking structure, includes the back of the chair and connects the back of the chair connecting piece in the back of the chair both sides respectively, be equipped with the locking mechanism of restriction back of the chair and back connecting piece relative motion in the back of the body connecting piece, its characterized in that: the locking mechanism comprises a knob and an elastic locking plate, the knob is rotatably arranged on a back connecting piece, the elastic locking plate is arranged on the outer side of the knob and comprises an inclining portion, a locking head portion is arranged at the upper end of the inclining portion, a fixing portion is arranged at the lower end of the inclining portion, the fixing portion is arranged in a fixing groove of the back connecting piece, the locking head portion is arranged in a clamping hole of the back connecting piece, a limiting block is arranged on the outer side wall of the knob, a limiting hole is formed in the limiting block, a screw penetrates through the limiting hole and is connected to the back connecting piece, the screw is matched with the limiting hole to limit the rotating angle of the knob, the limiting block is abutted to the lower end of the inclining portion in a normal state, when the knob is rotated, the limiting block gradually moves towards the upper end of the inclining portion, the elastic locking plate is.
2. The seatback recline lock structure of claim 1, wherein: the back of the chair includes back frame and back of the body frame, back of the body frame integrated into one piece is in the both sides of back frame, the back of the body frame is equipped with and holds the chamber, it is equipped with the draw-in groove on the lateral wall in chamber to hold, it is equipped with the connecting seat to hold the intracavity, be equipped with the screw in the connecting seat.
3. The seatback recline lock structure of claim 1, wherein: the back connecting piece is provided with a connecting hole for connecting a screw, a fixing groove for fixing the bottom end of the elastic locking plate, a clamping hole for the head of the elastic locking plate to pass through and a screw hole for connecting the screw.
4. The seatback recline lock structure of claim 1, wherein: the rotary knob is connected with a rotary cover, and a ring of teeth are arranged on the outer side of the rotary cover.
5. The seatback recline lock structure of claim 1, wherein: a spring element is arranged between the back connecting piece and the chair back, one end of the spring element is connected in the chair back, and the other end of the spring element is connected in the back connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021808961.2U CN213247902U (en) | 2020-08-26 | 2020-08-26 | Chair back tilting locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021808961.2U CN213247902U (en) | 2020-08-26 | 2020-08-26 | Chair back tilting locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213247902U true CN213247902U (en) | 2021-05-25 |
Family
ID=75976868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021808961.2U Active CN213247902U (en) | 2020-08-26 | 2020-08-26 | Chair back tilting locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213247902U (en) |
-
2020
- 2020-08-26 CN CN202021808961.2U patent/CN213247902U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107397369B (en) | Seat tool | |
| CN213247902U (en) | Chair back tilting locking structure | |
| CN209883545U (en) | Adjustable chair waist rest | |
| KR101074020B1 (en) | Chair with autoadjustable back incline | |
| CN213464439U (en) | Chair and cushion mounting structure thereof | |
| KR102210240B1 (en) | Apparatus for adjusting chair backrest tilting with elasticity control | |
| CN221083172U (en) | Seat tool | |
| CN220069252U (en) | Chair back tilting structure and chair | |
| CN219088769U (en) | Position-adjustable seat headrest | |
| CN211984659U (en) | Chair armrest | |
| CN217565396U (en) | Adjustable locking structure and deck chair | |
| CN112773122B (en) | Rotary positioning mechanism, armrest frame with rotatable armrest seat and chair | |
| CN213216207U (en) | Child chair backrest lifting device | |
| CN217852061U (en) | Multifunctional adjustable armrest for seat | |
| CN216454192U (en) | Multifunctional lifting chair armrest | |
| CN221356334U (en) | Chair armrest structure capable of being adjusted in multiple directions | |
| CN219895138U (en) | Office chair convenient to adjust | |
| CN220327154U (en) | Multidirectional adjusting armrest and seat | |
| CN212280606U (en) | Multifunctional comfortable seat | |
| CN218044423U (en) | Adjustable waist support mechanism | |
| CN220236463U (en) | Back supporting mechanism for seat | |
| CN220512522U (en) | Armrest for adjusting, positioning and supporting arm positions at multiple angles | |
| CN220157902U (en) | Chair seat tilting angle adjusting mechanism and chair | |
| CN220236441U (en) | Unidirectional ratchet lifting device and seat | |
| CN117297283A (en) | Chair back sliding rail-changing mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |