CN216776566U - Simple positioning device for seat - Google Patents
Simple positioning device for seat Download PDFInfo
- Publication number
- CN216776566U CN216776566U CN202123133419.9U CN202123133419U CN216776566U CN 216776566 U CN216776566 U CN 216776566U CN 202123133419 U CN202123133419 U CN 202123133419U CN 216776566 U CN216776566 U CN 216776566U
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- seat
- operating rod
- cam
- positioning device
- sliding piece
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Abstract
The utility model discloses a simple positioning device for a seat, which is arranged on a chair leg of the seat, wherein a pulley is arranged at the bottom of the chair leg; the simple positioning device comprises an operating rod, a cam, a sliding piece and a friction plate; the operating rod is rotatably arranged on a support which is fixedly arranged at the bottom of the chair leg; the operating rod extends outwards, and a pedal is arranged at the extending end part of the operating rod; the cam is arranged on the part of the operating rod below the chair leg; the sliding piece is arranged below the cam; a bottom cover covering the cam and the sliding piece is fixedly arranged on the support; the bottom of the bottom cover is provided with a guide hole, and the sliding piece downwards passes through the guide hole of the bottom cover; the sliding piece is also sleeved with a spring; the bottom end of the sliding part is connected with the friction plate. The device can realize the locking and the releasing of the seat, so that a user can still move the seat to adjust the distance between the seat and the table after sitting on the seat.
Description
Technical Field
The utility model relates to the technical field of seats, in particular to a simple positioning device for a seat.
Background
The child learning chair is a seat used by children for learning or performing other activities; in order to avoid the movement of the learning chair caused by more actions of children sitting on the chair, the bottom of the chair leg of the existing learning chair for children is generally provided with a gravity self-locking wheel; after a child sits on the seat, the wheels of the chair legs can be locked, so that the seat cannot move, in actual use, the child also needs to move the position of the seat to be matched with a table after sitting on the seat, and therefore the gravity self-locking wheels are arranged to cause great trouble to the movement of the seat at the moment, and the actual use is inconvenient.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, the present invention provides a simple positioning device for a seat; the device can realize the locking and the releasing of the seat, so that a user can still move the seat to adjust the distance between the seat and the table after sitting on the seat.
In order to achieve the technical purpose and achieve the technical effect, the utility model is realized by the following technical scheme:
a simple positioning device for a seat is arranged on a chair leg of the seat, and the bottom of the chair leg is provided with a pulley; the simple positioning device comprises an operating rod, a cam, a sliding piece and a friction plate; the operating rod is rotatably arranged on a support which is fixedly arranged at the bottom of the chair leg; the operating rod extends outwards, and a pedal is arranged at the extending end part of the operating rod; the cam is arranged on the part of the operating rod below the chair leg; the sliding piece is arranged below the cam; a bottom cover covering the cam and the sliding piece is fixedly arranged on the support; the bottom of the bottom cover is provided with a guide hole, and the sliding piece downwards passes through the guide hole of the bottom cover; the sliding piece is also sleeved with a spring; the bottom end of the sliding part is connected with the friction plate.
As a further improvement of the technical scheme of the utility model, the cam is in an eccentric block structure with an arc convex surface.
As a further improvement of the above technical solution of the present invention, the section of the portion of the operating lever for mounting the cam is a kidney-shaped; correspondingly, the mounting hole of the cam matched with the operating rod is in a kidney-shaped shape.
As a further improvement of the technical scheme of the utility model, the operating rod is of a Z-shaped structure.
As a further improvement of the technical scheme, the pedal is of an L-shaped structure with two pedals.
As a further improvement of the above technical solution of the present invention, the sliding member is composed of a top plate located at the upper part and a column located at the lower part; the column of the sliding part downwards passes through the guide hole of the bottom cover; the spring is positioned between the top plate of the sliding piece and the bottom of the bottom cover.
As a further improvement of the technical scheme, the friction plate is circular or rectangular.
The utility model has the beneficial effects that:
when the simple seat positioning device is used, the pedal is stepped by feet to drive the operating rod to rotate, so that the cam on the operating rod rotates, the cam acts on the sliding piece, the sliding piece can slide up and down to drive the friction plate to lift, the friction plate is pressed against or separated from the ground, and the seat is locked or unlocked. When the friction plate is in abutting contact with the ground, the seat is locked by utilizing the friction force between the friction plate and the ground, so that the seat cannot move; when the friction plate is separated from the ground, the seat can move, and a user can adjust the distance between the seat and the table by moving the seat.
The simple positioning device for the seat has the advantages of simple and reliable structure and convenient use, and can be used for conveniently locking or moving the seat as required by a user.
Drawings
FIG. 1 is a schematic view of the overall structure of the seat positioning device of the present invention engaged with a seat leg.
FIG. 2 is an exploded view of the seat positioning device and the seat legs.
Fig. 3 is a schematic structural view of a cam in the seat easy positioning device of the present invention.
Fig. 4 is a schematic structural view of an operation lever in the seat easy positioning device of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
In the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
A preferred embodiment of a simple seat positioning device as shown in figures 1 to 4; the simple seat positioning device is arranged at the bottom of a chair leg 8 of the seat, and a pulley 9 is arranged at the bottom of the chair leg; the simple positioning device comprises an operating rod 1, a cam 2, a sliding piece 3 and a friction plate 4.
The operating rod 1 is rotatably arranged on a support 5, and the support 5 is fixedly arranged at the bottom of the chair leg 7; the operating rod 1 is of a Z-shaped structure, the operating rod 1 extends outwards (backwards), and the end part extending backwards is provided with a pedal 11; the footrest 11 has an L-shaped configuration with two pedals 111.
The cam 2 is arranged on the part of the operating rod 1 below the chair leg 8; in the present embodiment, the cam 2 is an eccentric block structure having an arc-shaped convex surface 21; the section of the part of the operating rod 1 for installing the cam 2 is in a kidney-shaped shape; correspondingly, the mounting hole (eccentric hole) of the cam matched with the operating rod is also in a waist circle shape.
The sliding piece 3 is arranged below the cam 2; and the slider 3 is composed of a top plate 31 at the upper portion and a column 32 at the lower portion.
A bottom cover 6 covering the cam 2 and the sliding piece 3 is fixedly arranged on the support 5; the bottom of the bottom cover 6 is provided with a guide hole 61, and the column 32 of the sliding part 3 downwards passes through the guide hole 61 of the bottom cover 6; the sliding part 3 is also sleeved with a spring 7; the spring 7 is positioned between the top plate 31 of the slider 3 and the bottom of said bottom cover 6; the bottom end of the slider 3 is connected to the friction plate 4. The friction plate 4 is round, rectangular or other shapes; in the present embodiment, the friction plate 4 has a circular structure.
When the child sits on the seat, the child can step on one of the pedals 111 of the pedal 11 with feet to rotate the operating rod 1, and the cam 2 on the operating rod 1 rotates along with the operating rod 1; the arc convex surface 21 of the cam 2 is pressed against the sliding part 3, and the column body of the sliding part 3 descends along the guide hole 61 of the bottom cover 6; after the friction plate 4 connected with the sliding part 3 descends, the friction plate is pressed and contacted with the ground; the seat can be locked by the friction force between the friction plate 4 and the ground, so that the movement of the seat is limited; when the seat needs to be moved, a child can step on the other pedal 111 of the pedal 11 with a foot, so that the operating rod 1 rotates reversely, and the cam 2 on the operating rod 1 rotates along with the operating rod 1; the arc convex surface 21 of the cam 2 does not press the sliding part 3 any more, and the sliding part 3 rises along the guide hole 61 of the bottom cover 6 under the reset action of the spring 7; after the friction plate 4 connected with the sliding piece 3 rises, the friction plate is separated from the ground; at this time, the child can move the seat through the pulley 9 to adjust the distance between the seat and the table; after adjustment, the child may relock the seat according to the locking process
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a simple and easy positioner of seat installs on the chair foot of seat, and the pulley, its characterized in that are installed to the bottom of this chair foot: the simple positioning device comprises an operating rod, a cam, a sliding piece and a friction plate; the operating rod is rotatably arranged on a support which is fixedly arranged at the bottom of the chair leg; the operating rod extends outwards, and a pedal is arranged at the extending end part of the operating rod; the cam is arranged on the part of the operating rod below the chair leg; the sliding piece is arranged below the cam; a bottom cover covering the cam and the sliding piece is fixedly arranged on the support; the bottom of the bottom cover is provided with a guide hole, and the sliding piece downwards passes through the guide hole of the bottom cover; the sliding piece is also sleeved with a spring; the bottom end of the sliding part is connected with the friction plate.
2. A seat easy positioning device as claimed in claim 1, wherein: the cam is an eccentric block structure with an arc convex surface.
3. A seat easy positioning device as claimed in claim 1, wherein: the section of the part of the operating rod for mounting the cam is in a kidney-shaped shape; correspondingly, the mounting hole of the cam matched with the operating rod is in a kidney-shaped shape.
4. A seat easy positioning device as claimed in claim 1, wherein: the operating rod is of a Z-shaped structure.
5. A seat easy positioning device as claimed in claim 1, wherein: the pedal is of an L-shaped structure with two pedals.
6. A seat easy positioning device as claimed in claim 1, wherein: the sliding part consists of a top plate positioned at the upper part and a column positioned at the lower part; the column of the sliding part downwards passes through the guide hole of the bottom cover; the spring is positioned between the top plate of the sliding piece and the bottom of the bottom cover.
7. A seat easy positioning device as claimed in claim 1, wherein: the friction plate is circular or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123133419.9U CN216776566U (en) | 2021-12-14 | 2021-12-14 | Simple positioning device for seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123133419.9U CN216776566U (en) | 2021-12-14 | 2021-12-14 | Simple positioning device for seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216776566U true CN216776566U (en) | 2022-06-21 |
Family
ID=82006850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123133419.9U Active CN216776566U (en) | 2021-12-14 | 2021-12-14 | Simple positioning device for seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216776566U (en) |
-
2021
- 2021-12-14 CN CN202123133419.9U patent/CN216776566U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |