CN216875440U - But folding joint mechanism and wall table of auto-lock - Google Patents
But folding joint mechanism and wall table of auto-lock Download PDFInfo
- Publication number
- CN216875440U CN216875440U CN202220019734.4U CN202220019734U CN216875440U CN 216875440 U CN216875440 U CN 216875440U CN 202220019734 U CN202220019734 U CN 202220019734U CN 216875440 U CN216875440 U CN 216875440U
- Authority
- CN
- China
- Prior art keywords
- lock pin
- rotary
- wall
- locking
- arm
- 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
Abstract
The embodiment of the utility model discloses a self-locking folding joint mechanism and a wall table, wherein the self-locking folding joint mechanism comprises: the fixing arm is of a U-shaped structure and is used for being fixedly arranged on the corresponding mounting plate; the rotating arm is of a U-shaped structure, is rotatably connected with the fixed arm through a rotating shaft and is used for rotating relative to the fixed arm; the locking mechanism comprises a rotary lock pin angle limiting buckle fixedly arranged on the inner wall of one side of the fixed arm and a locking rod mechanism which is rotatably arranged on the two side walls of the rotary arm in a penetrating manner, and the locking rod mechanism interacts with the rotary lock pin angle limiting buckle and is used for controlling the rotary action of the rotary arm relative to the fixed arm. The wall table board can be automatically locked after being supported by the supporting legs, the problem that the wall table board is accidentally folded can be solved, the wall table board can be stored after being unlocked, and the use experience of a user is improved.
Description
Technical Field
The utility model relates to the technical field of machinery, in particular to a self-locking folding joint mechanism and a wall table.
Background
At present, a lot of folding furniture is popular among users because the folding furniture occupies a small space, more space can be made for placing other furniture, and the folding furniture has beautiful and practical appearance. Among these folding furniture, wall tables are particularly popular with users because the wall tables can be stored on the wall without occupying the floor space of the living room, and the wall tables are stored on the wall and hung on the wall more beautifully, so that the wall tables can be used as a decoration of the wall. However, in the prior art, after the wall desk board is supported by the supporting legs, the problem of accidental folding is easily caused, so that the wall desk board is frequently and accidentally dropped, which causes dissatisfaction of users, and the problem needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a foldable joint mechanism and a wall table capable of self-locking, so as to solve the following problems in the prior art: after the wall table board is supported by the supporting legs, the problem of accidental folding is easy to occur, so that the wall table board is frequently accidentally dropped.
The technical scheme of the utility model is as follows:
a self-lockable folding joint mechanism, comprising: the fixing arm is of a U-shaped structure and is used for being fixedly arranged on the corresponding mounting plate; the rotating arm is of a U-shaped structure and is rotationally connected with the fixed arm through a rotating shaft, and the rotating arm is sleeved in the fixed arm and is used for rotating relative to the fixed arm through the rotating shaft; the locking mechanism comprises a rotary lock pin angle limiting buckle fixedly arranged on the inner wall of one side of the fixed arm and a locking rod mechanism which is rotatably arranged on the two side walls of the rotary arm in a penetrating manner, and the locking rod mechanism interacts with the rotary lock pin angle limiting buckle and is used for controlling the rotary action of the rotary arm relative to the fixed arm.
Optionally, a locking hole corresponding to the locking rod mechanism is formed in one side wall of the fixed arm, a rotating groove for allowing the locking rod mechanism to rotate is correspondingly formed in the other side wall of the fixed arm, two inner wall holes penetrating through the locking rod mechanism are symmetrically formed in two side walls of the rotating arm, and when the locking mechanism is in a locking state, the circle centers of the locking hole and the two inner wall holes are located on the same central line.
Optionally, the detent locking lever mechanism comprises: the rotating lock pin penetrates through the inner wall hole and the rotating groove, one end of the rotating lock pin is provided with a lock pin knob, and the other end of the rotating lock pin penetrates through the locking hole to block the rotating arm from rotating relative to the fixed arm; the rotary lock pin spring is sleeved at the middle section of the rotary lock pin and is used as a thrust spring of the rotary lock pin; a locking pin sleeve which is sleeved outside the rotary lock pin spring and is used for accommodating the rotary lock pin and the rotary lock pin spring and preventing the rotary lock pin from being pulled out of the inner wall hole and the rotary groove; the diameter of the rotary lock pin spring and the diameter of the lock pin sleeve are both larger than the diameter of the inner wall hole, the diameter of the rotary lock pin is smaller than the diameter of the locking hole, the rotary lock pin spring and the lock pin sleeve are arranged between the two inner walls of the rotating arm, the lock pin knob is arranged on the outer wall of the rotating groove, back to the rotary lock pin spring and the outer wall of the lock pin sleeve, and the width of the lock pin knob is larger than the width of the rotating groove.
Optionally, a spring abutting step is arranged on an inner wall of one end, away from the lock pin knob, of the lock pin sleeve, one end of the rotary lock pin spring abuts against the spring abutting step, the other end of the rotary lock pin spring abuts against one side wall of the rotating arm, a thrust pin which interacts with the slope surface to change the axial position of the rotary lock pin penetrates through one end, corresponding to the locking hole, of the rotary lock pin, and the lock pin sleeve abuts against the thrust pin under the pushing of the rotary lock pin spring.
Optionally, the angle limiting buckle for the rotary lock pin includes a slope surface and an arc surface for controlling the axial position of the rotary lock pin, a limiting groove for limiting the position of the thrust pin is provided between the slope surface and the arc surface, a straight line parallel to the slope surface is perpendicular to the axial direction of the rotary lock pin, a straight line parallel to the arc surface is parallel to the axial direction of the rotary lock pin, and a portion of the slope surface connected to the limiting groove is a top of the slope.
Optionally, a non-slip hand structure is provided on a surface of the locking pin knob.
Optionally, the slope surface, the arc surface and the limiting groove are integrally formed structural models.
Optionally, one end of the rotary lock pin corresponding to the locking hole is provided with a pin through hole, and the thrust pin is penetratingly arranged in the pin through hole and is fixed in the pin through hole in an interference fit manner.
Optionally, the length of the two parts of the thrust pin penetrating out of the pin penetrating hole is the same, and the length of the thrust pin is larger than the diameter of the inner wall hole.
A wall table comprises wall table plate supporting legs, and the wall table plate supporting legs comprise any one of the self-locking folding joint mechanisms.
By adopting the embodiment of the utility model, the following beneficial effects are achieved:
the self-locking folding joint mechanism and the wall table are provided with the locking mechanism comprising the rotary lock pin angle limiting buckle and the locking rod mechanism, the fixed arm and the rotary arm which are matched with each other for rotary motion are controlled by the interaction of the locking rod mechanism and the rotary lock pin angle limiting buckle, the self-locking folding joint mechanism can be locked and unlocked, the wall table plate can be automatically locked after being supported by the supporting legs, the problem that the wall table plate is accidentally folded can be avoided, the wall table plate can be stored after being unlocked, and the use experience of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Wherein:
FIG. 1 is an exploded view of a self-lockable folding joint mechanism in one embodiment of the utility model;
FIG. 2 is another exploded view of a self-lockable folding joint mechanism in an embodiment of the utility model;
FIG. 3 is a schematic view of an open state of a self-lockable folding joint mechanism in one embodiment of the utility model;
FIG. 4 is a schematic view of a folding state of a self-lockable folding joint mechanism in one embodiment of the utility model;
FIG. 5 is a schematic view of an open state of a wall table support leg in one embodiment of the present invention;
FIG. 6 is a schematic exterior view of the wall table in an unfolded state of the overall structure thereof according to an embodiment of the present invention;
fig. 7 is an external view schematically showing the locking state of the overall structure of the wall table according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, as can be obtained by referring to fig. 1 to 4, a self-lockable folding joint mechanism 1 of the present embodiment includes:
a fixed arm 10, which is a U-shaped structure, and is used for being fixedly mounted on a corresponding mounting plate, such as a wall table;
a rotating arm 20 having a U-shaped structure and rotatably connected to the fixing arm 10 via a rotating shaft 22, wherein the rotating arm 20 is fitted in the fixing arm 10 and is configured to rotate with respect to the fixing arm 10 via the rotating shaft 22;
the locking mechanism comprises a rotary lock pin 31 angle limiting buckle 40 fixedly arranged on the inner wall of one side of the fixed arm 10 and a stop lock rod mechanism 30 rotatably arranged on the two side walls of the rotary arm 20 in a penetrating manner, wherein the stop lock rod mechanism 30 interacts with the rotary lock pin 31 angle limiting buckle 40 and is used for controlling the rotary arm 20 to rotate relative to the fixed arm 10.
In this embodiment, optionally, be equipped with on a lateral wall of fixed arm 10 with the locking hole 12 that locking lever mechanism 30 corresponds, correspond on another lateral wall and be equipped with the confession locking lever mechanism 30 rotary motion's swivelling chute 11, wherein, locking hole 12 with swivelling chute 11 is corresponding, the symmetry is equipped with two on the both sides wall of swinging boom 20 and wears to establish locking lever mechanism 30's inner wall hole 21, and works as when locking mechanism is in the locking state, locking hole 12 and two the centre of a circle of inner wall hole 21 is in on same center line.
In this embodiment, the locking bar mechanism 30 optionally includes:
and a rotation lock pin 31 penetrating through the inner wall hole 21 and the rotation groove 11, having one end provided with a lock pin knob 35 for rotating the same, and the other end for passing through the locking hole 12 to block the rotation of the rotation arm 20 relative to the fixing arm 10. When the rotary lock pin 31 is inserted into the lock hole 12, the rotation of the rotary arm 20 relative to the fixed arm 10 is limited, and the lock mechanism is in a locked state.
And a rotary lock pin spring 32, which is sleeved on the middle section of the rotary lock pin 31 and is used as a thrust spring of the rotary lock pin 31.
A locking pin sleeve 33 which is sleeved outside the rotary lock pin spring 32, receives the rotary lock pin 31 and the rotary lock pin spring 32, and prevents the rotary lock pin 31 from being pulled out of the inner wall hole 21 and the rotary groove 11.
Wherein, the diameters of the rotary lock pin spring 32 and the lock pin sleeve 33 are both larger than the diameter of the inner wall hole 21, the diameter of the rotary lock pin 31 is smaller than the diameter of the locking hole 12, the rotary lock pin spring 32 and the lock pin sleeve 33 are arranged between two inner walls of the rotary arm 20, the lock pin knob 35 is arranged on the outer wall of the rotary slot 11 facing away from the rotary lock pin spring 32 and the lock pin sleeve 33, and the width of the lock pin knob 35 is larger than the slot width of the rotary slot 11. Optionally, the locking-pin knob 35 is provided with a circular cover having a diameter larger than the width of the rotation groove 11, so that the locking-pin knob 35 is prevented from being caught in the rotation groove 11.
In this embodiment, optionally, a spring abutting step (not shown) is disposed on an inner wall of an end of the lock pin sleeve 33 away from the lock pin knob 35, one end of the rotary lock pin spring 32 abuts against the spring abutting step, the other end of the rotary lock pin spring 32 abuts against one side wall of the rotating arm 20, one end of the rotary lock pin 31 corresponding to the lock hole 12 is penetrated by a thrust pin 34 that interacts with the slope surface 41 to change an axial position of the rotary lock pin 31, and the lock pin sleeve 33 abuts against the thrust pin 34 under the pushing of the rotary lock pin spring 32.
In this embodiment, optionally, the angle limiting catch 40 of the rotary lock pin 31 includes a slope surface 41 and an arc surface 42 for controlling the axial position of the rotary lock pin 31, a limiting groove 43 for limiting the position of the thrust pin 34 is disposed between the slope surface 41 and the arc surface 42, a straight line parallel to the slope surface 41 is perpendicular to the axial direction of the rotary lock pin 31, a straight line parallel to the arc surface 42 is parallel to the axial direction of the rotary lock pin 31, and a portion of the slope surface 41 connected to the limiting groove 43 is a slope top.
In this embodiment, optionally, the surface of the lock-pin knob 35 is provided with an anti-slip hand structure, so that when the user rotates the lock-pin knob 35, the hand can be prevented from slipping.
In this embodiment, optionally, the slope surface 41, the arc surface 42 and the limiting groove 43 are integrally formed structural models, and the integrally formed structural models are further optionally integrally formed structural models made of plastic, and the integrally formed structural models are fixed on the inner wall of the fixing arm 10 by the rotating shaft 22.
In this embodiment, optionally, one end of the rotary lock pin 31 corresponding to the lock hole 12 is provided with a pin through hole, and the thrust pin 34 is penetratingly provided in the pin through hole and fixed in the pin through hole by interference fit.
In this embodiment, optionally, the length of the two portions of the thrust pin 34 that penetrate the pin penetrating hole is the same, and the length of the thrust pin 34 is larger than the diameter of the inner wall hole 21, so that the thrust pin 34 is prevented from being pushed into the lock hole 12 by the rotary lock pin spring 32.
The working principle of the utility model is as follows:
as shown in fig. 1, when the rotary knob makes the locking bar mechanism 30 disengage from the locking hole 12 through the thrust pin 34 and the slope surface 41, and the rotary arm 20 changes from open to folded, the arc surface and the thrust pin 34 interact to make the thrust pin 34 disengage from the slope surface 41 to restore the state of ready locking before unlocking,
when the locking bar mechanism 30 is in a locking state, that is, when one end of the locking pin knob 35 is inserted into the locking hole 12, the locking pin knob 35 is rotated counterclockwise, the circular side surface of the thrust pin 34 moves tangentially with the slope surface 41, and with the rising of the slope surface 41, the thrust pin 34 pushes the rotary locking pin 31 to overcome the elastic force of the rotary locking pin spring 32, and when the thrust pin 34 reaches the limiting groove 43, one end of the rotary locking pin 31, which is far away from the locking pin knob 35, completely disengages from the locking hole 12, so that the limitation that the rotary arm 20 rotates from the direction B to the direction a with the rotary shaft 22 as the axis is removed. While the rotating arm 20 rotates, the arc surface 42 forces the thrust pin 34 to change its angle so as to be away from the limit of the slope surface 41, and the rotating lock pin 31 moves forward to abut against an inner side wall of the fixed arm 10 under the elastic force of the rotating lock pin spring 32.
When the locking bar mechanism 30 is in the unlocked state, that is, when one end of the lock pin knob 35 is separated from the locking hole 12, when a force in the direction from a to B is applied to the rotating arm 20, so that the rotating arm 20 is opened in the direction from a to B until the axis of the lock pin knob 35 coincides with the center line of the locking hole 12, the rotating lock pin 31 is clamped into the locking hole 12 under the thrust action of the rotating lock pin spring 32, thereby limiting the rotation of the rotating arm 20.
Referring to fig. 5 to 7, it can be seen from fig. 5 to 7 that the wall table of the present invention includes a wall table board supporting leg 2, a wall table board 3 and a wall table hanging board 4, where the wall table board supporting leg 2 includes any one of the self-lockable folding joint mechanisms 1. The wall table supporting leg comprises a table fixing plate 50 fixed with the fixing arm 10 and a supporting rod 60 fixed with the rotating arm 20, the table fixing plate 50 is fixed with the wall table 3, a pulley 70 is arranged at one end, in contact with the ground, of the supporting rod 60, and an air spring 80 is connected between the table fixing plate 50 and the rotating arm 20. The number of the wall table board supporting legs 2 is at least one, and when the number of the wall table board supporting legs 2 is more than one, only one locking mechanism can be arranged.
The self-locking folding joint mechanism 1 and the wall table are provided with the locking mechanism comprising the rotary lock pin 31 angle limiting buckle 40 and the locking rod mechanism 30, the fixed arm 10 and the rotating arm 20 which are matched with each other for rotary motion are controlled by the interaction of the locking rod mechanism 30 and the rotary lock pin 31 angle limiting buckle 40, the self-locking folding joint mechanism 1 can be locked and unlocked, the wall table plate 3 can be automatically locked after being supported by the wall table plate supporting leg 2, the problem that the wall table plate 3 is folded accidentally can be avoided, the wall table plate 3 can be stored after being unlocked, and the use experience of a user is improved.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.
Claims (10)
1. A self-lockable folding joint mechanism, comprising:
the fixing arm is of a U-shaped structure and is used for being fixedly arranged on the corresponding mounting plate;
the rotating arm is of a U-shaped structure and is rotationally connected with the fixed arm through a rotating shaft, and the rotating arm is sleeved in the fixed arm and is used for rotating relative to the fixed arm through the rotating shaft;
the locking mechanism comprises a rotary lock pin angle limiting buckle fixedly arranged on the inner wall of one side of the fixed arm and a locking rod mechanism which is rotatably arranged on the two side walls of the rotary arm in a penetrating manner, and the locking rod mechanism interacts with the rotary lock pin angle limiting buckle and is used for controlling the rotary action of the rotary arm relative to the fixed arm.
2. The self-lockable folding joint mechanism according to claim 1, wherein one side wall of the fixed arm is provided with a locking hole corresponding to the locking bar mechanism, the other side wall is correspondingly provided with a rotary groove for the locking bar mechanism to rotate, two inner wall holes penetrating the locking bar mechanism are symmetrically arranged on two side walls of the rotary arm, and when the locking mechanism is in a locking state, the centers of the locking hole and the two inner wall holes are on the same central line.
3. The self-lockable folding joint mechanism according to claim 2, the arresting locking bar mechanism comprising:
the rotating lock pin penetrates through the inner wall hole and the rotating groove, one end of the rotating lock pin is provided with a lock pin knob, and the other end of the rotating lock pin penetrates through the locking hole to block the rotating arm from rotating relative to the fixed arm;
the rotary lock pin spring is sleeved at the middle section of the rotary lock pin and is used as a thrust spring of the rotary lock pin;
a locking pin sleeve which is sleeved outside the rotary lock pin spring and is used for accommodating the rotary lock pin and the rotary lock pin spring and preventing the rotary lock pin from being pulled out of the inner wall hole and the rotary groove;
the diameter of the rotary lock pin spring and the diameter of the lock pin sleeve are both larger than the diameter of the inner wall hole, the diameter of the rotary lock pin is smaller than the diameter of the locking hole, the rotary lock pin spring and the lock pin sleeve are arranged between the two inner walls of the rotating arm, the lock pin knob is arranged on the outer wall of the rotating groove, back to the rotary lock pin spring and the outer wall of the lock pin sleeve, and the width of the lock pin knob is larger than the width of the rotating groove.
4. The self-lockable folding joint mechanism according to claim 3, wherein the rotation lock pin angle limiting buckle comprises a slope surface and an arc surface, the slope surface and the arc surface are used for controlling the axial position of the rotation lock pin, a limiting groove for limiting the position of the thrust pin is arranged between the slope surface and the arc surface, a straight line parallel to the slope surface is perpendicular to the axial direction of the rotation lock pin, a straight line parallel to the arc surface is parallel to the axial direction of the rotation lock pin, and the part of the slope surface, which is connected with the limiting groove, is a slope top.
5. The self-lockable folding joint mechanism according to claim 4, wherein a spring abutting step is provided on an inner wall of the lock pin sleeve at an end away from the lock pin knob, one end of the rotary lock pin spring abuts against the spring abutting step, the other end of the rotary lock pin spring abuts against one side wall of the rotating arm, a thrust pin which interacts with the slope surface to change an axial position of the rotary lock pin is provided through an end of the rotary lock pin corresponding to the locking hole, and the lock pin sleeve abuts against the thrust pin under the pushing force of the rotary lock pin spring.
6. The self-lockable folding joint mechanism according to claim 3, characterized in that the surface of the locking pin knob is provided with an anti-slip hand structure.
7. The self-lockable folding joint mechanism according to claim 4, wherein the slope surface, the circular arc surface and the limiting groove are integrally formed structural models.
8. The self-lockable folding joint mechanism according to claim 5, wherein one end of the rotary lock pin corresponding to the locking hole is provided with a pin through hole, and the thrust pin is penetratingly provided in the pin through hole and fixed in an interference fit manner in the pin through hole.
9. The self-lockable folding joint mechanism according to claim 8, characterized in that the length of the two parts of the thrust pin which penetrate out of the pin through hole is the same, and the length of the thrust pin is larger than the diameter of the inner wall hole.
10. A wall table comprising a wall table support leg, wherein the wall table support leg comprises the self-lockable folding joint mechanism of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220019734.4U CN216875440U (en) | 2022-01-05 | 2022-01-05 | But folding joint mechanism and wall table of auto-lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220019734.4U CN216875440U (en) | 2022-01-05 | 2022-01-05 | But folding joint mechanism and wall table of auto-lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216875440U true CN216875440U (en) | 2022-07-05 |
Family
ID=82213962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220019734.4U Active CN216875440U (en) | 2022-01-05 | 2022-01-05 | But folding joint mechanism and wall table of auto-lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216875440U (en) |
-
2022
- 2022-01-05 CN CN202220019734.4U patent/CN216875440U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2703293C (en) | Grip latch and hinge mechanism for a flip table | |
| JP3151941U (en) | Folding table | |
| KR100775626B1 (en) | Desk for lecture | |
| WO2007085155A1 (en) | An elastic pin positioned telescopic platform workstation | |
| CN216875440U (en) | But folding joint mechanism and wall table of auto-lock | |
| US20170303718A1 (en) | Inertia and gravity driven collapsible garment hanger | |
| US5322022A (en) | Collapsible table | |
| EP2123198A1 (en) | A collapsible chair | |
| CN210195650U (en) | Lifting positioning structure of ladder tool table | |
| WO2013141474A1 (en) | Standing desk having integrated chair | |
| KR102423185B1 (en) | Hinge assembly | |
| EP1859707A2 (en) | Auto-retractable side table for folding seats | |
| WO2021073560A1 (en) | Collapsible clothes hanger | |
| CN211765809U (en) | Folding joint and shifting machine with same | |
| JP3211244U (en) | Folding table legs | |
| WO2009043315A1 (en) | Foldable step stool, foldable step bar chair and foldable chair | |
| KR200461598Y1 (en) | Collapsible table | |
| CN115355240B (en) | Folding positioning mechanism | |
| CN218509938U (en) | Can hide couple | |
| US6648418B2 (en) | Collapsible footrest assembly for a gliding ottoman | |
| JP3238840U (en) | folding excavator | |
| KR20060090952A (en) | Desk for lecture | |
| JP3198421U (en) | Furniture with folding legs and foot connection device | |
| AU2021106918A4 (en) | Foldable table | |
| CN219908292U (en) | Airing rod assembly and airing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |