CN215650198U

CN215650198U - Seat with pulley brake device

Info

Publication number: CN215650198U
Application number: CN202122080228.4U
Authority: CN
Inventors: 王腾宇
Original assignee: Zhejiang Jinhong Industry And Trade Co ltd
Current assignee: Zhejiang Jinhong Industry And Trade Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-28
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a chair with a pulley braking device, comprising: the seat comprises a seat base, wherein a plurality of pulleys are arranged at the bottom of the seat base, the seat base is provided with a pulley braking device, the pulley braking device comprises a positioning rod and a plurality of positioning grooves corresponding to the positioning rod, the positioning grooves are arranged at equal intervals along the circumferential direction of the pulleys, each positioning rod is provided with an elastic piece, one end of each elastic piece abuts against the corresponding positioning rod, and the seat base is provided with a switch button connected with the corresponding positioning rod; when braking, the switch button is pressed to drive the positioning rod to be correspondingly clamped with the positioning groove; when unlocking, the elastic piece drives the positioning rod to be separated from the positioning groove. The chair with the pulley brake device is provided with the pulley brake device, so that the pulley can be braked and unlocked, the positioning is stable, and the operation is convenient; the structure is simple, and the production cost is low; prevent the brake from unlocking by mistake, and is safe and reliable to use.

Description

Seat with pulley brake device

Technical Field

The utility model relates to a seat, in particular to a seat with a pulley braking device.

Background

Many seats are available with wheels, including many child carriers, such as child seats, cribs, children's carts, or tricycles, which are equipped with wheels to facilitate mobility. At the same time, it is desirable to be able to secure it securely in a position so as to be carefree for the child. Therefore, a corresponding brake device is required to be arranged to brake and lock the wheel, and the function of the brake device is more important for the safety of the rider sitting on the brake device.

Taking a child seat as an example, an existing child seat generally includes a seat portion and a supporting frame for supporting the seat portion, wherein a backrest, a leg rest, a removable tray, and the like can be selectively pivoted on the seat portion. Most of the existing children seats on the market are not provided with wheels, and the requirement that a user can move conveniently at any time according to needs cannot be met; the child seat with the wheels is arranged at the lower end of the support frame, the brake device is correspondingly connected to the support frame and used for braking and locking the wheels and releasing the lock to enable the wheels to rotate, so that the child seat can be moved, but the brake device has the defects of complex structure, inconvenience in operation and the like, is easy to cause inconvenience in operation of a user in use, and is easy to separate due to unstable positioning, and potential safety hazards are brought to a seated child.

Therefore, it is necessary to provide a brake device with simple structure, easy operation and high reliability to solve the disadvantages of the prior art.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The technical problem to be solved by the utility model is to provide the seat with the pulley brake device, which has a simple structure and is low in production cost; the pulley brake device is arranged, so that the pulley can be braked and unlocked, the positioning is stable, and the operation is convenient; prevent the brake from unlocking by mistake, and is safe and reliable to use.

(II) technical scheme

In order to solve the above technical problems, the present invention provides a seat with a pulley braking device, comprising: the seat comprises a seat base, wherein a plurality of pulleys are arranged at the bottom of the seat base, the seat base is provided with a pulley braking device, the pulley braking device comprises a positioning rod and a plurality of positioning grooves corresponding to the positioning rod, the positioning grooves are arranged at equal intervals along the circumferential direction of the pulleys, each positioning rod is provided with an elastic piece, one end of each elastic piece abuts against the corresponding positioning rod, and the seat base is provided with a switch button connected with the corresponding positioning rod; when the vehicle is braked, the switch button is pressed to downwards drive the positioning rod to be correspondingly clamped with the positioning groove; when the unlocking is carried out, the switch button is reset, and the elastic piece drives the positioning rod to be upwards separated from the positioning groove, so that the operation is convenient.

According to the seat with the pulley braking device, the pulley braking devices are provided with two groups and are respectively arranged above the first front pulley and the second front pulley, one pulley can be braked independently, and the seat is convenient to use; the pulley can be braked and unlocked, the positioning is stable, and the operation is convenient; the structure is simple, and the production cost is low; the brake is prevented from being unlocked by mistake, and the use is safe and reliable; the notch of the positioning groove is annularly provided with an inclined plane, so that the positioning rod can fall into the positioning groove to be clamped conveniently; one end of the elastic piece is abutted against the bottom of the outer flange, the other end of the elastic piece is abutted against the mounting plate, and the elastic piece is a spring and is flexible to reset; the switch key is a spring self-locking switch key, so that the use is reliable, and the mistaken unlocking is prevented; the positioning groove is provided with an arc concave corresponding to the arc convex part, so that the positioning is stable; the mounting panel passes through bolt fixed mounting in seat base bottom, and the mounting panel is equipped with the bolt hole, easy dismounting.

Furthermore, the bottom of the positioning rod is provided with an arc-shaped protruding portion, and the positioning groove is provided with an arc-shaped concave surface corresponding to the arc-shaped protruding portion, so that the positioning is stable.

Furthermore, the notch of constant head tank department annular is provided with the inclined plane, is convenient for the locating lever to fall into the constant head tank block.

Furthermore, the locating lever is arranged below the switch key, and the switch key is provided with a mounting groove for mounting the locating lever, so that the mounting is stable.

Furthermore, a mounting plate is fixedly arranged on the seat base, a through groove for mounting the positioning rod is formed in the mounting plate, and one end of the positioning rod penetrates through the through groove; the locating lever can slide up and down in the through groove, and the sliding is smooth and easy.

Further, the mounting panel passes through bolt fixed mounting and is in seat base bottom, the mounting panel is equipped with the bolt hole, easy dismounting.

Furthermore, the locating lever be equipped with the spacing round platform that the mounting panel corresponds, during the use the locating lever downstream makes spacing round platform support and lean on spacing on the mounting panel, it is reliable to use.

Furthermore, the switch button is a spring self-locking switch button, so that the use is reliable, and the unlocking by mistake is prevented.

Furthermore, the elastic piece is sleeved outside the positioning rod, an outer flange is arranged at the upper end of the positioning rod, one end of the elastic piece abuts against the bottom of the outer flange, the other end of the elastic piece abuts against the mounting plate, and the elastic piece is a spring and is flexible to reset.

Furthermore, the pulleys comprise a first front pulley and a second front pulley, and the pulley braking devices are provided with two groups and are respectively arranged above the first front pulley and the second front pulley; can brake one pulley independently, and is convenient to use.

(III) advantageous effects

The seat with the pulley braking device can brake and unlock the pulley, is stable in positioning and convenient to operate; the structure is simple, and the production cost is low; the brake is prevented from being unlocked by mistake, and the use is safe and reliable; the notch of the positioning groove is annularly provided with an inclined plane, so that the positioning rod can fall into the positioning groove to be clamped conveniently; one end of the elastic piece is abutted against the bottom of the outer flange, the other end of the elastic piece is abutted against the mounting plate, and the elastic piece is a spring and is flexible to reset; the switch key is a spring self-locking switch key, so that the use is reliable, and the mistaken unlocking is prevented; the positioning groove is provided with an arc concave corresponding to the arc convex part, so that the positioning is stable; the mounting plate is fixedly mounted at the bottom of the seat base through bolts, and is provided with bolt holes, so that the mounting and dismounting are convenient; the pulley braking device is provided with two groups of pulleys which are arranged above the first front pulley and the second front pulley respectively, and can brake one pulley independently, so that the use is convenient.

Drawings

FIG. 1 is a perspective view of a chair with a pulley brake according to the present invention;

FIG. 2 is a perspective view of a seat bottom with a pulley brake of the present invention;

FIG. 3 is a schematic view of the seat pulley brake apparatus with the pulley brake apparatus according to the present invention;

FIG. 4 is an exploded view of the seat pulley brake with pulley brake of the present invention;

wherein: the seat comprises a seat base 1, a pulley 2, a first pulley 201, a second pulley 202, a positioning rod 3, an arc-shaped protruding portion 301, a limiting circular truncated cone 302, an outer flange 303, a positioning groove 4, an arc-shaped concave surface 401, an inclined surface 402, a switch button 5, an installation groove 501, an elastic piece 6, an installation plate 7, a through groove 701 and a bolt hole 702.

Detailed Description

Referring to fig. 1 to 4, the present invention provides a seat with a pulley braking device, including: the seat comprises a seat base 1, wherein a plurality of pulleys 2 are arranged at the bottom of the seat base 1, a pulley brake device is arranged on the seat base 1 and comprises a positioning rod 3 and positioning grooves 4 corresponding to the positioning rod 3, the positioning grooves 4 are arranged in a plurality, the positioning grooves 4 are arranged at equal intervals along the circumferential direction of the pulley 2, an elastic piece 6 is arranged on the positioning rod 3, one end of the elastic piece 6 abuts against the positioning rod 3, and a switch button 5 connected with the positioning rod 3 is arranged on the seat base 1; when braking, the switch button 5 is pressed to downwards drive the positioning rod 3 to be correspondingly clamped with the positioning groove 4; when the unlocking is performed, the switch button is reset, the elastic piece 6 drives the positioning rod 3 to upwards separate from the positioning groove 4, and the operation is convenient. According to the seat with the pulley brake device, the mounting plate is fixedly mounted at the bottom of the seat base through the bolts, and the mounting plate is provided with the bolt holes, so that the seat is convenient to disassemble and assemble; the pulley braking devices are provided with two groups and are respectively arranged above the first front pulley and the second front pulley, one pulley can be braked independently, and the use is convenient; the pulley can be braked and unlocked, the positioning is stable, and the operation is convenient; the structure is simple, and the production cost is low; the brake is prevented from being unlocked by mistake, and the use is safe and reliable; the notch of the positioning groove is annularly provided with an inclined plane, so that the positioning rod can fall into the positioning groove to be clamped conveniently; one end of the elastic piece is abutted against the bottom of the outer flange, the other end of the elastic piece is abutted against the mounting plate, and the elastic piece is a spring and is flexible to reset; the switch key is a spring self-locking switch key, so that the use is reliable, and the mistaken unlocking is prevented; the positioning groove is provided with an arc concave surface corresponding to the arc convex part, and the positioning is stable.

Referring to fig. 1, 3 and 4, the bottom of the positioning rod 3 is provided with an arc-shaped protrusion 301, and the positioning groove 4 is provided with an arc-shaped concave 401 corresponding to the arc-shaped protrusion 301, so that the positioning is stable. Notch department annular of constant head tank 4 is provided with inclined plane 402, and the locating lever of being convenient for falls into the constant head tank block. Switch button 5 below is arranged in to locating lever 3, and switch button 5 is equipped with mounting groove 501 that is used for installing locating lever 3, and the installation is firm.

Referring to fig. 3 and 4, the seat base 1 is fixedly provided with a mounting plate 7, the mounting plate 7 is provided with a through groove 701 for mounting the positioning rod 3, and one end of the positioning rod 3 penetrates through the through groove 701; the positioning rod 3 can slide up and down in the through groove 701, and the sliding is smooth. The mounting plate 7 is fixedly mounted at the bottom of the seat base 1 through bolts, and the mounting plate 7 is provided with bolt holes 702 which are convenient to disassemble and assemble. The positioning rod 3 is provided with a limiting round table 302 corresponding to the mounting plate 7, and when the positioning rod 3 is used, the positioning rod 3 moves downwards to enable the limiting round table 302 to abut against the mounting plate 7 for limiting, so that the use is reliable.

Referring to fig. 1, 3 and 4, the switch button 5 is a spring self-locking switch button, which is reliable in use and prevents mistaken unlocking. Elastic component 6 suit is in the locating lever 3 outside, and the locating lever 3 upper end is equipped with

outward flange

303, and 6 one end of elastic component is supported and is leaned on outward flange 303 bottom, and the 6 other end of elastic component supports and leans on mounting panel 7, and elastic component 6 is the spring, and it is nimble to reset.

Referring to fig. 1 and 2, the pulley 2 includes a first front pulley 201 and a second front pulley 202, and two sets of pulley braking devices are provided and are respectively disposed above the first front pulley 201 and the second front pulley 202; can brake one pulley independently, and is convenient to use.

According to the seat with the pulley brake device, the positioning groove is provided with the arc concave corresponding to the arc convex part, so that the positioning is stable; the mounting plate is fixedly mounted at the bottom of the seat base through bolts, and is provided with bolt holes, so that the mounting and dismounting are convenient; the pulley braking devices are provided with two groups and are respectively arranged above the first front pulley and the second front pulley, one pulley can be braked independently, and the use is convenient; the pulley can be braked and unlocked, the positioning is stable, and the operation is convenient; the structure is simple, and the production cost is low; the brake is prevented from being unlocked by mistake, and the use is safe and reliable; the notch of the positioning groove is annularly provided with an inclined plane, so that the positioning rod can fall into the positioning groove to be clamped conveniently; one end of the elastic piece is abutted against the bottom of the outer flange, the other end of the elastic piece is abutted against the mounting plate, and the elastic piece is a spring and is flexible to reset; the switch button is a spring self-locking switch button, is reliable to use and prevents mistaken unlocking.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A seat with a pulley brake comprising: the chair base (1) is characterized in that a plurality of pulleys (2) are arranged at the bottom of the chair base (1), the chair base (1) is provided with a pulley brake device, the pulley brake device comprises a positioning rod (3) and positioning grooves (4) corresponding to the positioning rod (3), the positioning grooves (4) are provided in a plurality, the positioning grooves (4) are arranged at equal intervals along the circumferential direction of the pulleys (2), the positioning rod (3) is provided with an elastic piece (6), one end of the elastic piece (6) is abutted against the positioning rod (3), and the chair base (1) is provided with a switch button (5) connected with the positioning rod (3); when braking, the switch button (5) is pressed to drive the positioning rod (3) to be correspondingly clamped with the positioning groove (4); when the unlocking is carried out, the elastic piece (6) drives the positioning rod (3) to be separated from the positioning groove (4).

2. The seat with a pulley brake device according to claim 1, characterized in that the bottom of the positioning rod (3) is provided with an arc-shaped convex part (301), and the positioning groove (4) is provided with an arc-shaped concave surface (401) corresponding to the arc-shaped convex part (301).

3. The seat with a pulley brake device according to claim 1, characterized in that the notch of the positioning slot (4) is provided with a slope (402) in a circular shape.

4. The seat with a pulley brake device according to claim 1, characterized in that the positioning rod (3) is disposed below the switch button (5), and the switch button (5) is provided with a mounting groove (501) for mounting the positioning rod (3).

5. The seat with the pulley brake device according to claim 1, wherein the seat base (1) is fixedly provided with a mounting plate (7), the mounting plate (7) is provided with a through groove (701) for mounting the positioning rod (3), and one end of the positioning rod (3) penetrates through the through groove (701).

6. The seat with a pulley brake device according to claim 5, characterized in that the mounting plate (7) is fixedly mounted at the bottom of the seat base (1) by bolts, and the mounting plate (7) is provided with bolt holes (702).

7. The seat with the pulley brake device of claim 5, characterized in that the positioning rod (3) is provided with a limiting circular truncated cone (302) corresponding to the mounting plate (7), and when in use, the positioning rod (3) moves downwards to enable the limiting circular truncated cone (302) to be limited against the mounting plate (7).

8. The seat with a pulley brake device according to claim 1, characterized in that the switch button (5) is a spring self-locking switch button.

9. The seat with the pulley braking device according to claim 5, wherein the elastic member (6) is sleeved outside the positioning rod (3), an outer flange (303) is arranged at the upper end of the positioning rod (3), one end of the elastic member (6) abuts against the bottom of the outer flange (303), the other end of the elastic member (6) abuts against the mounting plate (7), and the elastic member (6) is a spring.

10. The seat with a pulley brake according to claim 1, characterized in that the pulley (2) comprises a first front pulley (201) and a second front pulley (202), and the pulley brake is provided in two sets and is disposed above the first front pulley (201) and the second front pulley (202), respectively.