CN210617745U

CN210617745U - Pulley component and cart standing plate

Info

Publication number: CN210617745U
Application number: CN201921257676.3U
Authority: CN
Inventors: 胡杰
Original assignee: Dongguan Jinwang Children's Products Co ltd
Current assignee: Dongguan Jinwang Children's Products Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-26
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a loose pulley assembly, including wheel, shaft, front fork and installed part, the front fork passes through the wheel hub connection with the wheel, and the installed part is installed at the top of front fork, the front fork includes the regulating unit, the regulating unit is used for adjusting the height of front fork. The utility model discloses still disclose a shallow riser of standing. The utility model discloses a height of front fork is adjusted to the regulating unit to realize loose pulley assembly's altitude mixture control.

Description

Pulley component and cart standing plate

Technical Field

The utility model relates to a technical field of shallow especially relates to a loose pulley assembly and shallow board of standing.

Background

The height of the existing cart standing plate can not be adjusted, and the existing cart standing plate can not be suitable for different requirements and use scenes of users.

Therefore, there is a need for a height adjustable pulley assembly and cart standing plate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a loose pulley assembly and shallow riser of standing that can height-adjusting.

The technical scheme of the utility model a loose pulley assembly is provided, including wheel, shaft, front fork and installed part, the front fork with the wheel passes through the wheel hub connection, the installed part is installed the top of front fork, the front fork includes the adjusting unit, the adjusting unit is used for adjusting the height of front fork.

Furthermore, the adjusting unit comprises a switching piece, an adjusting piece and a positioning piece, one end of the adjusting piece is rotatably connected with the wheel through the wheel shaft, the other end of the adjusting piece is matched with the positioning piece, and the positioning piece is connected with the mounting piece;

when the switching piece is located at the first working position, the adjusting piece is separated from the positioning piece, and the adjusting piece can rotate around the wheel shaft and adjust the height;

when the switching piece is located at the second working position, the adjusting piece is connected with the positioning piece in a positioning mode.

Furthermore, the adjusting part comprises a first adjusting block and a second adjusting block which are respectively positioned at the left side and the right side of the positioning part, the first adjusting block comprises a pushing part and a first meshing part, and the second adjusting block comprises a second meshing part;

the positioning piece comprises a third engaging part and a fourth engaging part;

when the switching piece is located at the first working position, the switching piece presses the pushing part, the first meshing part is meshed with the third meshing part, and the second meshing part is meshed with the fourth meshing part;

when the switching piece is located at the second working position, the switching piece is loosened from the pushing part, the first meshing part is separated from the third meshing part, and the second meshing part is separated from the fourth meshing part.

Further, the first adjusting block further comprises a first rotating portion, the second adjusting block further comprises a second rotating portion, and the first rotating portion and the second rotating portion are rotatably connected with the wheel through the wheel shaft.

Further, the pushing part comprises at least two first slope bosses, a first slope groove is formed between every two adjacent first slope bosses, at least two second slope bosses are arranged on the switching piece, a second slope groove is formed between every two adjacent second slope bosses, when the pushing part and the switching piece are pressed tightly, the first slope bosses are inserted into the second slope grooves, and the second slope bosses are inserted into the first slope grooves.

Further, the first meshing portion, the second meshing portion, the third meshing portion, and the fourth meshing portion each include a plurality of triangular teeth arranged continuously in a circle.

Furthermore, the first regulating block extends out of a first stop block towards the second regulating block, and the second regulating block extends out of a second stop block towards the first regulating block;

when the switching piece is tightly pressed with the pushing part, the first stop block is abutted against the second stop block;

when the switching piece is loosened from the pushing part, the first stop block is separated from the second stop block.

Furthermore, one side of the pushing part of the first adjusting block is also provided with a locking part, and the switching piece is locked by the locking part after being pressed by the pushing part.

Further, the locking part is a locking groove, a protruding strip is arranged on the switching piece, and the protruding strip can be clamped in the locking groove or disengaged from the locking groove.

The utility model also provides a shallow board of standing, the package rubbing board body still includes above-mentioned arbitrary item loose pulley assembly, loose pulley assembly installs the bottom surface of plate body.

After adopting above-mentioned technical scheme, have following beneficial effect:

the utility model discloses a height of front fork is adjusted to the regulating unit to realize loose pulley assembly's altitude mixture control.

Drawings

The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:

fig. 1 is a perspective view of a pulley assembly according to an embodiment of the present invention;

figure 2 is an exploded rear view of a sheave assembly according to one embodiment of the present invention;

fig. 3 is an exploded view from the left side of a sheave assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a first adjusting block facing a side of the switching member according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a switching member in the first embodiment of the present invention;

fig. 6 is a perspective view of a standing plate of the cart in the second embodiment of the present invention.

Reference symbol comparison table:

pulley assembly 10 plate 20

Wheel 1 front fork 2 mounting piece 3

Switching member 21 adjusting member 22 positioning member 23

Second slope protrusion 211, second slope groove 212, convex strip 213

Third engaging portion 231 of first regulating block 221, second regulating block 222 and third regulating block

Fourth engaging part 232 pushing part 2211 first engaging part 2212

First rotating part 2213 first stopper 2214 locking part 2215

Second engaging part 2221, second rotating part 2222, second stopper 2223

First ramp boss 2211a first ramp groove 2211b

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

It is easily understood that, according to the technical solution of the present invention, a plurality of structural modes and implementation modes that can be mutually replaced by those of ordinary skill in the art can be achieved without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

The first embodiment is as follows:

as shown in fig. 1-5, which are schematic structural views of the sheave assembly.

As shown in fig. 1, the pulley assembly 10 includes a wheel 1, a wheel axle (not shown), a front fork 2 and a mounting member 3, the front fork 2 is connected to the wheel 1 through the wheel axle, the mounting member 3 is mounted on the top of the front fork 2, the front fork 2 includes an adjusting unit, the adjusting unit includes a switching member 21, an adjusting member 22 and a positioning member 23, one end of the adjusting member 22 is rotatably connected to the wheel 1 through the wheel axle, the other end of the adjusting member 22 is engaged with the positioning member 23, and the positioning member 23 is connected to the mounting member 3;

when the switching piece 21 is located at the first working position, the adjusting piece 22 is separated from the positioning piece 23, and the adjusting piece 22 can rotate around the wheel shaft and adjust the height;

when the switching member 21 is in the second working position, the adjusting member 22 is connected to the positioning member 23.

Wherein, wheel 1 is current circular wheel, and the center has seted up the commentaries on classics hole, and the shaft inserts in changeing the hole, and wheel 1 revolves the axis of rotation and rotates.

The front fork 2 is installed on the left and right sides of the wheel 1 and is rotatably connected with the wheel axle, the front fork 2 is fixedly connected with the mounting member 3, and the mounting member 3 is used for mounting the pulley assembly 10 on other equipment. For example: the standing plate of the baby stroller, or the bottom of the seat.

The pulley assembly 10 in this embodiment can not only slide, but also adjust its height to meet different requirements of users.

Specifically, the front fork 2 includes a switching member 21, an adjusting member 22, and a positioning member 23, and the switching member 21 is used to switch the fitting relationship between the adjusting member 22 and the positioning member 23.

When the height needs to be adjusted, when a user dials the switching piece 21 to be located at the first working position, the adjusting piece 22 is separated from the positioning piece 23, and the adjusting piece 22 can rotate around the wheel shaft and adjust the height;

after the sliding assembly 10 is adjusted to a proper height, when the user toggles the switching member 21 to be located at the second working position, the adjusting member 22 is connected with the positioning member 23 in a positioning manner again, and the adjusting member 22 is locked at the current height, so that the overall height of the sliding assembly 10 is changed.

Further, as shown in fig. 2-3, the adjusting member 22 includes a first adjusting block 221 and a second adjusting block 222 respectively located at the left and right sides of the positioning member 23, the first adjusting block 221 includes a pushing portion 2211 and a first engaging portion 2212, and the second adjusting block 222 includes a second engaging portion 2221;

the positioning member 23 includes a third engagement portion 231 and a fourth engagement portion 232;

when the switching member 21 is in the first working position, the switching member 21 presses the pushing portion 2211, the first engaging portion 2212 is engaged with the third engaging portion 231, and the second engaging portion 2221 is engaged with the fourth engaging portion 232;

when the switch 21 is at the second operating position, the switch 21 is released from the pushing portion 2211, the first engaging portion 2212 is disengaged from the third engaging portion 231, and the second engaging portion 2221 is disengaged from the fourth engaging portion 232.

Specifically, the switching member 21 is in the shape of a handle, the portion of the switching member 21 that is engaged with the pushing portion 2211 can rotate around the center of the pushing portion 2211 in a small range, and the pushing portion 2211 can be pushed in the axial direction during the rotation process, so that the first adjusting block 221 and the second adjusting block 222 are both pressed toward the positioning member 23, the first engaging portion 2212 is engaged with the third engaging portion 231, and the second engaging portion 2221 is engaged with the fourth engaging portion 232.

When the switching member 21 is released from the pushing portion 2211, a slight gap exists between the first adjusting block 221 and the second adjusting block 222 and the positioning member 23, so that the first engaging portion 2212 is disengaged from the third engaging portion 231, and the second engaging portion 2221 is disengaged from the fourth engaging portion 232. At this time, the first and second adjusting blocks 221 and 222 are rotated about the wheel axis by the user for adjusting the height. After the adjusting height is adjusted to a proper height, the first adjusting block 221 and the second adjusting block 222 are aligned with the center of the positioning member 23 again, then the switch member 21 is toggled, the switch member 21 presses the pushing portion 2211 again, and thus the first adjusting block 221 and the second adjusting block 222 are both pressed towards the positioning member 23.

Further, as shown in fig. 2-3, the first adjusting block 221 further includes a first rotating portion 2213, the second adjusting block 222 further includes a second rotating portion 2222, and the first rotating portion 2213 and the second rotating portion 2222 are rotatably connected to the wheel 1 through an axle.

Further, as shown in fig. 4-5, the pushing portion 2211 includes two first slope bosses 2211a, a first slope groove 2211b is formed between adjacent first slope bosses 2211a, two second slope bosses 211 are disposed on the switching piece 21, a second slope groove 212 is formed between adjacent second slope bosses 211, when the pushing portion 2211 is pressed against the switching piece 21, the first slope bosses 2211a are inserted into the second slope grooves 212, and the second slope bosses 211 are inserted into the first slope grooves 2211 b.

Because the first slope boss 2211a is inserted into the second slope groove 212, and the second slope boss 211 is matched with the first slope groove 2211b, the first slope boss 2211a is inserted into the second slope groove 212, and when the second slope boss 211 is inserted into the first slope groove 2211b, the switching member 21 can push the first adjusting block 221 to be pressed towards the direction of the positioning member 23 and the second adjusting block 222.

Further, as shown in fig. 2 to 3, each of the first engagement portion 2212, the second engagement portion 2221, the third engagement portion 231 and the fourth engagement portion 232 includes a plurality of triangular teeth continuously arranged in one turn.

Each triangular tooth on the same meshing part has the same shape and equal pitch. Thus, when the first adjusting block 221 and the second adjusting block 222 are adjusted to any height, the first adjusting block and the second adjusting block can be engaged with the third engaging portion 231 and the fourth engaging portion 232 of the positioning member 23.

Further, as shown in fig. 2-3, the first adjusting block 221 extends out of the first stopper 2214 towards the second adjusting block 222, and the second adjusting block 222 extends out of the second stopper 2223 towards the first adjusting block 221;

when the switching piece 21 is pressed against the pushing part 2211, the first stopper 2214 abuts against the second stopper 2223;

when the switch 21 is released from the pushing portion 2211, the first stopper 2214 is separated from the second stopper 2223.

As shown in fig. 1, when the switch 21 is pressed against the pushing part 2211, the space above the first stopper 2214 and the second stopper 2223 is used for installing the positioning element 23, the space below the first stopper 2214 and the second stopper 2223 is used for installing the wheel 1, the first stopper 2214 and the second stopper 2223 reserve an installation space for the positioning element 23 and the wheel 1, and the position of the first adjusting block 221 and the second adjusting block 222 when pressed is also limited.

Further, as shown in fig. 2-3, a locking portion 2215 is further provided on one side of the pushing portion 2211 of the first adjusting block 221, and the switching member 21 is locked by the locking portion 2215 after being pressed against the pushing portion 2211.

After locking, the pulley assembly 10 can be used normally by maintaining the fixed connection between the adjusting member 22 and the positioning member 23.

Specifically, as shown in fig. 3, the locking portion 2215 is a locking groove, and the switching member 21 is provided with a protruding strip 213, and the protruding strip 213 can be clamped into the locking groove or released from the locking groove.

When the switch 21 is pressed against the pushing portion 2211, the protruding strip 213 is locked into the locking portion 2215;

when the height needs to be adjusted, the protruding strip 213 is firstly pulled out of the locking portion 2215, and then the switching member 21 is rotated, so that the first adjusting block 221 and the second adjusting block 222 are separated from the positioning member 23.

The working process of the embodiment is as follows: when the height of the pulley assembly 10 needs to be adjusted, the switching member 21 is toggled, and the switching member 21 is rotated, so that the first slope boss 2211a of the first adjusting block 221 slides out of the second slope groove 212 of the switching member 21, and the second slope boss 211 of the switching member 21 slides out of the first slope groove 2211b of the first adjusting block 221; the switching member 21 and the first adjusting block 221 are separated or released along the axis, the first adjusting block 221 and the positioning member 23 are gradually separated, and finally the switching member 21, the first adjusting block 221, the positioning member 23 and the second adjusting block 222 are separated or released along the axis, but the lower ends of the first adjusting block 221 and the second adjusting block 222 (i.e., the first rotating portion 2213 and the second rotating portion 2222) are still connected with the wheel axle; at this time, the user drives the first adjusting block 221 and the second adjusting block 222 to rotate around the wheel shaft to adjust the heights of the first adjusting block 221 and the second adjusting block 222; when the front fork is adjusted to a proper height, the switching member 21 is rotated reversely, the second slope boss 211 of the switching member 21 is inserted into the first slope recess 2211b of the first adjusting block 221 completely again, the first slope boss 2211a of the first adjusting block 221 is inserted into the second slope recess 212 of the switching member 21 completely again, the switching member 21 pushes and presses the first adjusting block 221 toward the positioning member 23 along the axis, the positioning member 23 also presses toward the second adjusting block 222 along the axis, and the whole front fork 2 is locked again. The height change of the pulley assembly 10 after adjustment can be suitable for different vehicle types or suitable scenes, and the universality of the pulley assembly 10 is improved.

Example two:

as shown in fig. 6, the standing plate of the cart comprises a plate body 20 and a pulley assembly 10, wherein the pulley assembly 10 is installed on the bottom surface of the plate body 20.

Further, two pulley assemblies 10 are installed at two corners of the rear side of the plate body 20, respectively.

The standing plate of the baby stroller is arranged at the rear side of the baby stroller and can be used for a large child to stand.

When the standing plate of the stroller is installed on stroller frames with different heights, the front side of the plate body 20 is connected with the stroller frame, and then the height of the pulley assembly 10 is adjusted in the same manner as the first embodiment, so that the front side and the rear side of the plate body 20 are the same in height, and the plate body 20 is arranged in the horizontal direction, thereby facilitating the standing use of children.

The standing plate of the trolley in the embodiment can be suitable for trolley frames of different heights, is strong in universality, does not need to be additionally designed and manufactured, and reduces cost.

The utility model provides a loose pulley assembly 10 is not limited to the board of standing that is used for baby's shallow, can also be used for other equipment that need install loose pulley assembly 10 such as scooter.

What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.

Claims

1. Pulley assembly (10) comprising a wheel (1), an axle through which the front fork (2) is connected to the wheel (1), a front fork (2) and a mounting (3), which mounting (3) is mounted on top of the front fork (2), characterized in that the front fork comprises an adjustment unit for adjusting the height of the front fork.

2. The pulley assembly according to claim 1, characterized in that the adjusting unit comprises a switching member (21), an adjusting member (22) and a positioning member (23), one end of the adjusting member (22) is rotatably connected with the wheel (1) through the wheel axle, the other end of the adjusting member (22) is matched with the positioning member (23), and the positioning member (23) is connected with the mounting member (3);

when the switching piece (21) is located at a first working position, the adjusting piece (22) is separated from the positioning piece (23), and the adjusting piece (22) can rotate around the wheel shaft and adjust the height;

when the switching piece (21) is located at the second working position, the adjusting piece (22) is connected with the positioning piece (23) in a positioning mode.

3. The pulley assembly according to claim 2, wherein the adjusting member (22) comprises a first adjusting block (221) and a second adjusting block (222) respectively located at left and right sides of the positioning member (23), the first adjusting block (221) comprises a push-moving portion (2211) and a first engaging portion (2212), the second adjusting block (222) comprises a second engaging portion (2221);

the positioning member (23) includes a third engagement portion (231) and a fourth engagement portion (232);

when the switching piece (21) is in the first working position, the switching piece (21) presses the pushing part (2211), the first engaging part (2212) is engaged with the third engaging part (231), and the second engaging part (2221) is engaged with the fourth engaging part (232);

when the switching member (21) is in the second working position, the switching member (21) and the pushing part (2211) are released, the first engaging part (2212) is disengaged from the third engaging part (231), and the second engaging part (2221) is disengaged from the fourth engaging part (232).

4. The pulley assembly according to claim 3, characterized in that the first adjustment block (221) further comprises a first turning portion (2213) and the second adjustment block (222) further comprises a second turning portion (2222), the first turning portion (2213) and the second turning portion (2222) being rotationally connected with the wheel (1) through the axle.

5. The pulley assembly according to claim 3, wherein the push button portion (2211) comprises at least two first slope bosses (2211a), a first slope groove (2211b) is formed between adjacent first slope bosses (2211a), at least two second slope bosses (211) are provided on the switching member (21), a second slope groove (212) is formed between adjacent second slope bosses (211), when the push button portion (2211) is pressed against the switching member (21), the first slope bosses (2211a) are inserted into the second slope grooves (212), and the second slope bosses (211) are inserted into the first slope grooves (2211 b).

6. The pulley assembly according to claim 3, characterized in that the first engagement portion (2212), the second engagement portion (2221), the third engagement portion (231) and the fourth engagement portion (232) each comprise a plurality of triangular teeth arranged in a circle in succession.

7. The pulley assembly according to claim 3, wherein the first adjustment block (221) extends out of a first stop (2214) toward the second adjustment block (222), and the second adjustment block (222) extends out of a second stop (2223) toward the first adjustment block (221);

when the switching piece (21) is pressed against the pushing part (2211), the first stop block (2214) is abutted against the second stop block (2223);

when the switching member (21) is released from the pushing portion (2211), the first stopper (2214) is separated from the second stopper (2223).

8. The pulley assembly according to claim 3, wherein a locking portion (2215) is further disposed on one side of the pushing portion (2211) of the first adjusting block (221), and the switching member (21) is locked by the locking portion (2215) after being pressed against the pushing portion (2211).

9. The pulley assembly according to claim 8, wherein the locking portion (2215) is a locking groove, and the switching member (21) is provided with a protruding strip (213), and the protruding strip (213) can be locked into or released from the locking groove.

10. A cart standing board comprising a plate body (20), characterized by further comprising a pulley assembly (10) according to any of claims 1-9, said pulley assembly (10) being mounted on the bottom surface of said plate body (20).