CN219500712U - Hidden folding locking structure of chair frame - Google Patents
Hidden folding locking structure of chair frame Download PDFInfo
- Publication number
- CN219500712U CN219500712U CN202223475398.3U CN202223475398U CN219500712U CN 219500712 U CN219500712 U CN 219500712U CN 202223475398 U CN202223475398 U CN 202223475398U CN 219500712 U CN219500712 U CN 219500712U
- Authority
- CN
- China
- Prior art keywords
- connecting seat
- support frame
- frame
- gear
- locking
- 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
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses a hidden folding locking structure of a chair frame, which comprises a first connecting seat, wherein the first connecting seat is arranged above a base plate, a backrest plate is arranged above the base plate, open grooves are formed in two sides of the lower end of the backrest plate, connecting grooves are formed in the first connecting seat, gear rods are arranged on two sides of the backrest plate, and a first bearing is arranged outside the gear rods; the second connecting seat is arranged below the base plate, a first supporting frame and a second supporting frame are respectively arranged below the two second connecting seats, second bearings are respectively arranged on the two second connecting seats, connecting screws are respectively arranged on two sides of the first supporting frame and two sides of the second supporting frame, each part of the chair frame adopts a unidirectional folding mode, the folded part which is unfolded can be effectively supported and limited, the locking function is realized, the firm performance of the unfolded structure is improved, the bearing capacity of the chair frame is greatly increased, and the stability of the folded structure of the chair frame is improved.
Description
Technical Field
The utility model relates to the technical field of folding chair frames, in particular to a hidden folding locking structure of a chair frame.
Background
The chair frame is used for forming the main structure of the chair, so that the carrying and the transportation of the chair frame are convenient, the space occupied by the storage of the support frame is reduced, the practicability can be greatly improved by adopting the folding structure, and the folding chair is one of common furniture in offices or families, and can be conveniently folded and stored when not used, so that the folding chair is widely applied.
The Chinese patent publication No. CN215689217U, the authorized bulletin day is 2022, 02 and 01, the wheelchair with the hidden folding locking structure comprises a cushion frame and a folding connecting rod assembly connected with the cushion frame, the folding connecting rod assembly comprises a folding piece, one end of the folding piece is close to the cushion frame and is a rotation end, the other end of the folding piece is a fixed end and is used for fixing a front wheel or a rear wheel or a handrail or a backrest, the fixed end can rotate by taking a rotation axis at the rotation end as a center, a locking structure used for limiting the rotation of the folding piece is arranged between the folding piece and the cushion frame, the locking structure comprises a locking piece arranged on the cushion frame and a matching piece arranged on the folding piece, the locking piece is linked with an operating piece, and the operating piece is movably arranged on the lower side of the cushion frame. According to the wheelchair, the locking piece and the operating piece are hidden, and other people are difficult to directly pull the locking piece or the operating piece, so that the folding locking of the wheelchair is prevented from being released by misoperation.
The existing chair frame is folded in a folding mode, when the folding components are in an unfolding state, the supporting effect is poor, the firm performance of the unfolding structure is reduced, the situation of automatic inward folding under stress is easy to occur, the stability of the folding structure is reduced, the locking effect is poor, and the use requirement cannot be met.
Disclosure of Invention
The utility model aims to provide a hidden folding locking structure of a chair frame, which aims to solve the problems that the prior chair frame is mostly folded in a doubling mode in the prior art, when a folding component is in an unfolding state, the supporting effect is poor, the firm performance of the unfolding structure is reduced, the situation of automatic inward folding under stress is easy to occur, the stability of the folding structure is reduced, the locking effect is poor, and the use requirement cannot be met.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a hidden folding locking structure of a chair frame comprises a base plate,
the first connecting seat is arranged above the base plate and is fixedly connected with the base plate, a backrest plate is arranged above the base plate, open grooves are formed in two sides of the lower end of the backrest plate, connecting grooves are formed in the first connecting seat, gear rods are arranged on two sides of the backrest plate and are fixedly connected with the backrest plate, a first bearing is arranged outside the gear rods, and the first bearing is connected with the first connecting seat and the gear rods into an integrated structure;
the second connecting seat, it sets up the below of bed plate, the second connecting seat is provided with two, and second connecting seat and bed plate fixed connection, two the below of second connecting seat is provided with first support frame and second support frame respectively, and first support frame and second support frame are the U type setting, two all be provided with the second bearing on the second connecting seat, and second bearing and second connecting seat fixed connection, the both sides of first support frame and second support frame all are provided with connecting screw, and connecting screw and first support frame and second support frame fixed connection, connecting screw and second bearing rotation are connected.
Preferably, the inside of spread groove is provided with the gear cover, and the gear cover sets up in one side of gear pole, the gear cover corresponds the setting with the gear pole, one side of first connecting seat is provided with the locking bolt, and locking bolt and first connecting seat threaded connection, the one end and the gear cover rotation of locking bolt are connected.
Preferably, the outside of gear sleeve is provided with the slider, and the slider is provided with four, and the slider is at the outside equidistance setting of gear sleeve, slider and gear sleeve fixed connection, and slider and first connecting seat sliding connection.
Preferably, two one sides of the second connecting seats are provided with stop plates, the stop plates are fixedly connected with the second connecting seats, the stop plates are arranged on one sides of the first supporting frame and the second supporting frame, one sides of the two second connecting seats are provided with locking caps, the locking caps are rotationally connected with the second connecting seats, and the locking caps are in threaded connection with connecting screws.
Preferably, the lower ends of the first support frame and the second support frame are respectively provided with an anti-slip pad, and the anti-slip pads are fixedly connected with the first support frame and the second support frame.
Preferably, a carrying frame is arranged on one side of the base plate, and the carrying frame is fixedly connected with the base plate.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the device, through the arrangement of the first connecting seat, the gear rod and the first bearing, the backboard is rotationally connected with the first connecting seat by means of the gear rod and the first bearing, so that the backboard has a folding function;
2. according to the device, through the arrangement of the locking bolt and the gear sleeve, the gear sleeve is driven to move by rotating the locking bolt, the gear sleeve is meshed with the gear rod, the locking effect on the backboard can be achieved, and the adjustment of different unfolding angles of the backboard is achieved;
3. the device of the utility model rotationally connects the support frame with the second connecting seat by the second connecting seat, the connecting screw, the second bearing and the stop plate, so that the support frame has a folding function, and the stop plate can play a limiting role on the unfolded support frame;
4. the device of the utility model connects the locking cap with the connecting screw rod through the arrangement of the locking cap, and can play a role in locking the folded support frame.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a diagram showing the connection between the back board and the base board according to the present utility model;
FIG. 3 is a bottom view of the base plate of the present utility model;
FIG. 4 is a diagram showing the connection relationship between the backboard and the base plate according to the present utility model;
FIG. 5 is a diagram showing the connection relationship between the gear sleeve and the first connecting seat according to the present utility model;
fig. 6 is an enlarged view of a portion of area a of fig. 3 in accordance with the present utility model.
In the figure: 1. a base plate; 2. a first connection base; 3. a backboard; 4. a transport rack; 5. a second connecting seat; 6. a first support frame; 7. a second support frame; 8. an anti-slip pad; 9. an open slot; 10. a gear lever; 11. a first bearing; 12. a locking bolt; 13. a connecting groove; 14. a gear sleeve; 15. a stop plate; 16. a slide block; 17. a connecting screw; 18. a second bearing; 19. locking the cap.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-6, an embodiment of the present utility model is provided: a hidden folding locking structure of a chair frame comprises a base plate 1,
the first connecting seat 2 is arranged above the base plate 1, the first connecting seat 2 is fixedly connected with the base plate 1, the back plate 3 is arranged above the base plate 1, the two sides of the lower end of the back plate 3 are respectively provided with an open slot 9, the connecting slot 13 is arranged in the first connecting seat 2, the two sides of the back plate 3 are respectively provided with a gear rod 10, the gear rods 10 are fixedly connected with the back plate 3, the first bearing 11 is arranged outside the gear rods 10, and the first bearing 11 is connected with the first connecting seat 2 and the gear rods 10 into an integrated structure;
the second connecting seat 5, it sets up in the below of bed plate 1, second connecting seat 5 is provided with two, and second connecting seat 5 and bed plate 1 fixed connection, the below of two second connecting seats 5 is provided with first support frame 6 and second support frame 7 respectively, and first support frame 6 and second support frame 7 are the U type setting, all be provided with second bearing 18 on two second connecting seats 5, and second bearing 18 and second connecting seat 5 fixed connection, the both sides of first support frame 6 and second support frame 7 all are provided with connecting screw 17, and connecting screw 17 and first support frame 6 and second support frame 7 fixed connection, connecting screw 17 and second bearing 18 rotate to be connected.
When in use, the utility model is characterized in that: the gear sleeve 14 is separated from the gear rod 10, the backboard 3 is unfolded to a required angle by means of the first bearing 11, the gear sleeve 14 is meshed with the gear rod 10, the gear sleeve 14 plays a limiting role on the gear rod 10, the locking function of the backboard 3 is achieved, the locking cap 19 is loosened, the first support frame 6 and the second support frame 7 are rotated by means of the connecting screw 17 and the second bearing 18, the first support frame 6 and the second support frame 7 are unfolded to rotate the locking cap 19, and the first support frame 6 and the second support frame 7 are locked.
Referring to fig. 2 and 4, a gear sleeve 14 is disposed in the connecting slot 13, the gear sleeve 14 is disposed on one side of the gear rod 10, the gear sleeve 14 is disposed corresponding to the gear rod 10, a locking bolt 12 is disposed on one side of the first connecting seat 2, the locking bolt 12 is in threaded connection with the first connecting seat 2, one end of the locking bolt 12 is rotationally connected with the gear sleeve 14, the gear sleeve 14 is driven to move by rotating the locking bolt 12, and the gear sleeve 14 can limit the gear rod 10 along with the movement of the gear sleeve 14 to change the connection state with the gear rod 10, so that the locking function of the backboard 3 is realized.
Referring to fig. 4 and 5, the outer portion of the gear sleeve 14 is provided with four sliding blocks 16, the sliding blocks 16 are equidistantly arranged outside the gear sleeve 14, the sliding blocks 16 are fixedly connected with the gear sleeve 14, the sliding blocks 16 are slidably connected with the first connecting seat 2, the sliding blocks 16 can play a role in guiding and limiting the movable gear sleeve 14, and movement stability of the gear sleeve 14 is ensured.
Referring to fig. 3 and 6, one side of each of the two second connecting seats 5 is provided with a stop plate 15, the stop plates 15 are fixedly connected with the second connecting seats 5, the stop plates 15 are arranged on one sides of the first supporting frame 6 and the second supporting frame 7, one sides of the two second connecting seats 5 are provided with locking caps 19, the locking caps 19 are rotationally connected with the second connecting seats 5, the locking caps 19 are in threaded connection with connecting screws 17, the first supporting frame 6 and the second supporting frame 7 can be limited through the locking caps 19, the stop plates 15 can limit the unfolded first supporting frame 6 and second supporting frame 7, and the locking caps 19 can be prevented from being damaged due to overlarge stress of the first supporting frame 6 and the second supporting frame 7.
Referring to fig. 1 and 3, the lower ends of the first support frame 6 and the second support frame 7 are respectively provided with an anti-slip pad 8, and the anti-slip pads 8 are fixedly connected with the first support frame 6 and the second support frame 7, so that the fixing stability of the first support frame 6 and the second support frame 7 is improved through the anti-slip pads 8.
Referring to fig. 1 and 3, a carrying frame 4 is disposed on one side of the base plate 1, and the carrying frame 4 is fixedly connected with the base plate 1, so that the chair frame can be carried conveniently by the carrying frame 4.
Working principle: firstly, the locking bolt 12 is rotated to move the gear sleeve 14 to be separated from the gear rod 10, the backboard 3 is rotated by means of the first bearing 11 to expand the backboard 3 to a required angle, then the locking bolt 12 is rotated to move the gear sleeve 14 to be meshed with the gear rod 10, and the gear sleeve 14 plays a limiting role on the gear rod 10, so that the locking function of the backboard 3 is realized; the locking cap 19 is released firstly, the first support frame 6 and the second support frame 7 are rotated by means of the connecting screw rod 17 and the second bearing 18, the first support frame 6 and the second support frame 7 are unfolded to be in contact with the stop plate 15, the locking cap 19 is rotated again to lock the first support frame 6 and the second support frame 7, all parts of the chair frame are connected in a foldable connecting mode, and the folding structure has a locking function, so that the use effect of the chair frame is improved.
What is not described in detail in this specification is prior art known to those skilled in the art.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hidden folding locking structure of chair frame, includes bed plate (1), its characterized in that:
the novel bicycle comprises a first connecting seat (2), wherein the first connecting seat is arranged above a base plate (1), the first connecting seat (2) is fixedly connected with the base plate (1), a backrest plate (3) is arranged above the base plate (1), open slots (9) are formed in two sides of the lower end of the backrest plate (3), connecting slots (13) are formed in the first connecting seat (2), gear rods (10) are arranged on two sides of the backrest plate (3), the gear rods (10) are fixedly connected with the backrest plate (3), a first bearing (11) is arranged outside the gear rods (10), and the first bearing (11) is connected with the first connecting seat (2) and the gear rods (10) into an integral structure;
the second connecting seat (5), it sets up the below of bed plate (1), second connecting seat (5) are provided with two, and second connecting seat (5) and bed plate (1) fixed connection, two the below of second connecting seat (5) is provided with first support frame (6) and second support frame (7) respectively, and first support frame (6) and second support frame (7) are the U type setting, two all be provided with second bearing (18) on second connecting seat (5), and second bearing (18) and second connecting seat (5) fixed connection, the both sides of first support frame (6) and second support frame (7) all are provided with connecting screw (17), and connecting screw (17) and first support frame (6) and second support frame (7) fixed connection, connecting screw (17) and second bearing (18) rotate to be connected.
2. A hidden fold lock structure for a chair frame as claimed in claim 1, wherein: the inside of spread groove (13) is provided with gear sleeve (14), and gear sleeve (14) set up in one side of gear lever (10), gear sleeve (14) set up with gear lever (10) correspondence, one side of first connecting seat (2) is provided with locking bolt (12), and locking bolt (12) and first connecting seat (2) threaded connection, the one end and the gear sleeve (14) of locking bolt (12) rotate to be connected.
3. A hidden fold lock structure for a chair frame as claimed in claim 2, wherein: the outside of gear sleeve (14) is provided with slider (16), and slider (16) are provided with four, and slider (16) are at the outside equidistance setting of gear sleeve (14), slider (16) and gear sleeve (14) fixed connection, and slider (16) and first connecting seat (2) sliding connection.
4. A hidden fold lock structure for a chair frame as claimed in claim 1, wherein: two one side of second connecting seat (5) all is provided with and ends position board (15), and ends position board (15) and second connecting seat (5) fixed connection, it sets up one side at first support frame (6) and second support frame (7) to end position board (15), two one side of second connecting seat (5) all is provided with locking cap (19), and locking cap (19) are connected with second connecting seat (5) rotation, locking cap (19) and connecting screw (17) threaded connection.
5. A hidden fold lock structure for a chair frame as claimed in claim 1, wherein: the lower extreme of first support frame (6) and second support frame (7) all is provided with slipmat (8), and slipmat (8) and first support frame (6) and second support frame (7) fixed connection.
6. A hidden fold lock structure for a chair frame as claimed in claim 1, wherein: one side of the base plate (1) is provided with a carrying frame (4), and the carrying frame (4) is fixedly connected with the base plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223475398.3U CN219500712U (en) | 2022-12-26 | 2022-12-26 | Hidden folding locking structure of chair frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223475398.3U CN219500712U (en) | 2022-12-26 | 2022-12-26 | Hidden folding locking structure of chair frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219500712U true CN219500712U (en) | 2023-08-11 |
Family
ID=87528447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223475398.3U Active CN219500712U (en) | 2022-12-26 | 2022-12-26 | Hidden folding locking structure of chair frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219500712U (en) |
-
2022
- 2022-12-26 CN CN202223475398.3U patent/CN219500712U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6644734B1 (en) | Foldable table and bench assembly | |
| US11452378B1 (en) | Mechanical stretching device for movable seat unit and seat unit | |
| GB2613498A (en) | Multi child stroller | |
| CN111227542B (en) | Combined type reading table chair deformation mechanism based on library's intelligence is read | |
| CN219500712U (en) | Hidden folding locking structure of chair frame | |
| US11730276B2 (en) | Foldable bed | |
| CN103263176A (en) | Multifunctional transformation chair and application method thereof | |
| CN106388364B (en) | One kind moving back formula rumble seat | |
| CN110123052B (en) | Telescopic folding bed-chair dual-purpose device | |
| CN216494008U (en) | Multifunctional folding cosmetic mirror | |
| CN211269501U (en) | Foldable deck chair | |
| CN209528620U (en) | A kind of folding backrest structure for children dinning chair | |
| CN221229052U (en) | Multifunctional seat capable of being unfolded into bed | |
| CN219069797U (en) | Noon break chair | |
| CN214930019U (en) | Foldable baby stroller | |
| CN215501826U (en) | Outdoor folding table and chair suite convenient to store | |
| CN2659245Y (en) | Fully folding lie fallow chair frame | |
| CN213075130U (en) | Sofa convenient to fold | |
| CN220384664U (en) | Folding seat convenient to use | |
| CN113349593B (en) | Intelligent automatic folding shrinkage iron bed | |
| CN213247882U (en) | Folding beach chair frame | |
| CN219578567U (en) | Multifunctional office chair | |
| CN210276573U (en) | Multifunctional sofa | |
| CN217366441U (en) | Linkage type mechanism capable of saving packaging space and massage chair | |
| CN219467620U (en) | Foldable desk and chair integrated sofa |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |