CN111924035B

CN111924035B - Pulley folding support for children pulley

Info

Publication number: CN111924035B
Application number: CN202010851743.5A
Authority: CN
Inventors: 朱蕴石
Original assignee: Taicang Shijiqiao Industrial And Commercial Office
Current assignee: Hualian Fogang Machinery Manufacturing Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-11-05
Anticipated expiration: 2040-08-21
Also published as: CN111924035A; WO2022036727A1

Abstract

The invention discloses a pulley folding support for a children pulley, which comprises a pulley, a folding base, two folding arms and a quick-assembly mechanism, wherein the lower surface of the folding base is concavely provided with a mounting groove; when the foldable base is unfolded, the foldable arms are protruded out of the two ends of the foldable base; when folded, the folding arm is hidden in the mounting groove; the invention has simple structure and convenient operation, can realize the quick folding and unfolding of the folding arm and realize the quick installation of the pulley. The quick assembly mechanism ingeniously utilizes the principle that like poles of magnets repel each other, and the locking block and the connecting hole are quickly aligned and installed; and meanwhile, the quick-mounting mechanism is used for locking the folding arm during folding.

Description

Pulley folding support for children pulley

Technical Field

The invention relates to the field of children toys, in particular to a pulley folding support for a children pulley.

Background

Children are colorful in the world, parents usually carry a pulley when playing and traveling outside, children sit on the pulley and move forward by swinging legs, and the children do not want to continue playing after playing for a period of time; the general structure of the pulley comprises a body and pulleys arranged in front of and behind the body, and the pulleys usually protrude out of the body, so that the size of the pulley is greatly increased; therefore, it is desirable to fold the wheels of the carrier within the body to reduce the bulk of the carrier.

Disclosure of Invention

Aiming at overcoming the defects in the prior art, the invention mainly aims to overcome the defects in the prior art and discloses a pulley folding support for a child tackle, which comprises a pulley, a folding base, two folding arms and a quick-assembly mechanism, wherein the lower surface of the folding base is concavely provided with a mounting groove, the two folding arms are respectively and rotatably arranged at the two ends of the mounting groove through a rotating shaft, and the quick-assembly mechanism is arranged at the end part of each folding arm; when the foldable base is unfolded, the folding arms are protruded out of two ends of the foldable base; when folded, the folding arm is hidden in the mounting groove;

the quick assembly mechanism comprises a connecting shaft, a plug-pull block, an isolation sleeve and a locking block, the connecting shaft is fixedly arranged on the folding arm, a mounting hole is concavely arranged at one end of the connecting shaft, the mounting hole is of a cuboid structure, guide holes penetrating through the mounting hole are formed in the two ends of the connecting shaft, the locking block is arranged in the guide holes at the two ends in a sliding mode, the isolation sleeve is arranged in the mounting hole and is fixedly connected with the mounting hole, the plug-pull block comprises a block body matched with an inner hole of the isolation sleeve and a magnet arranged at the end part of the block body, the plug-pull block is inserted into the isolation sleeve, the locking block is a magnet, and when the magnet and the locking block have the same magnetic pole, the locking block protrudes out of the guide holes; when the magnetic poles are opposite, the locking block is hidden in the guide hole, and the pulley is sleeved on the connecting shaft and connected with the pulley through the locking block.

In one embodiment, the pulley comprises a connecting part and a rolling part, the rolling part is connected to the connecting part in a rolling mode through a bearing, and the connecting part is connected with the fast-assembling mechanism.

In one embodiment, the magnet is in clearance fit with the isolation sleeve, and the block body is in tight fit with the isolation sleeve.

In an embodiment, the locking piece includes a locking piece body and a locking portion, the locking portion is disposed on the locking piece body and has a stepped structure, the guide hole is a stepped hole matched with the locking piece, and the locking piece body is a magnet.

In one embodiment, the guide hole is a rectangular parallelepiped hole-shaped structure.

In one embodiment, the side walls of the connecting shaft are symmetrically provided with positioning planes, and the through holes of the pulleys are matched with the connecting shaft.

In one embodiment, a fixing hole is formed in the inner wall of the mounting groove, and the fixing hole corresponds to the position of the locking block when the folding arm is folded to be in position.

In one embodiment, the folding wheel carrier further comprises four C-shaped clamps, and the four C-shaped clamps are respectively arranged on two sides of the rotation center of the folding arm and used for fixing the folding arm to prevent the folding arm from rotating.

The invention has the following beneficial effects:

the invention has simple structure and convenient operation, can realize the quick folding and unfolding of the folding arm and realize the quick installation of the pulley. The quick assembly mechanism ingeniously utilizes the principle that like poles of magnets repel each other, and the locking block and the connecting hole are quickly aligned and installed; and meanwhile, the quick-mounting mechanism is used for locking the folding arm during folding.

Drawings

FIG. 1 is a schematic view of a pulley folding bracket for a child carrier according to the present invention in an unfolded state;

FIG. 2 is a schematic view of the pulley folding bracket for a children's carriage of the present invention in another view angle;

FIG. 3 is a schematic view of the folding structure of the pulley folding bracket for the children's tackle in a folding state;

FIG. 4 is a schematic view of the connection of the quick-mounting mechanism and the pulley;

FIG. 5 is a cross-sectional view of the connection of the quick load mechanism to the pulley;

FIG. 6 is a schematic structural diagram of the insertion and extraction block;

FIG. 7 is a schematic structural view of a lock block;

the reference numbers are as follows:

31. folding base, 32, folding arm, 33, fast-assembling mechanism, 34, second mounting groove, 35, C-shaped clamp, 36, pulley, 37, fixing hole, 331, connecting shaft, 332, plug-pull block, 333, spacer sleeve, 334, locking block, 335, block body, 336, magnet, 337, locking block body, 338, locking part, 339, positioning plane, 361, connecting part, 362, rolling part, 363 and adjusting hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A pulley folding support for a child pulley comprises a pulley 36, a folding base 31, two folding arms 32 and a quick-assembly mechanism 33, wherein the lower surface of the folding base 31 is concavely provided with a mounting groove 34, the two folding arms 32 are respectively rotatably arranged at two ends of the mounting groove 34 through rotating shafts, and the quick-assembly mechanism 33 is arranged at the end part of the folding arm 32; when unfolded, the folding arms 32 protrude out of the two ends of the folding base; when folded, the folding arm 32 is hidden in the mounting slot 34; the pulley 36 is mounted on the quick-mounting mechanism 33.

Specifically, as shown in fig. 1 to 7, the quick-mounting mechanism 33 includes a connecting shaft 331, an inserting and pulling block 332, an isolating sleeve 333 and a locking block 334, wherein the connecting shaft 331 is fixedly disposed on the folding arm 32, and may be connected by welding or may be an integral structure. One end of the connecting shaft 331 is concavely provided with a mounting hole which is of a cuboid structure, two ends of the connecting shaft are provided with guide holes penetrating through the mounting hole, the locking block 334 is arranged in the guide holes at the two ends in a sliding manner, the isolating sleeve 333 is arranged in the mounting hole and is fixedly connected with the mounting hole, the plugging and unplugging block 332 comprises a block body 335 matched with the inner hole of the isolating sleeve and a magnet 336 arranged at the end part of the block body, the plugging and unplugging block 332 is inserted into the isolating sleeve 333, the locking block 334 is a magnet, and when the magnetic poles of the magnet 336 and the locking block 334 are the same, the locking block 334 protrudes out of the guide holes; when the poles are opposite, the lock 334 is hidden in the guide hole. The pulley 36 includes a connecting portion 361 and a rolling portion 362, the rolling portion 362 is connected to the connecting portion 361 through a bearing in a rolling manner, and the connecting portion 361 is connected to the quick-assembly mechanism 33. The connecting portion 361 is axially provided with a through hole, a connecting hole 363 is provided in the through hole, and when the pulley 36 is connected with the quick-mounting mechanism 33, the lock block 334 is inserted into the connecting hole 363. When the pulley 36 is installed, the insertion and extraction block 332 is inserted, so that the magnetic poles of the insertion and extraction block 332 are opposite to those of the locking blocks 334 on the two sides, the locking blocks 334 are hidden in the guide holes, then the pulley is sleeved on the connecting shaft 331, the locking blocks 334 correspond to the connecting holes 363 in the pulley 36, the insertion and extraction block 332 is removed, the insertion and extraction block 332 is inserted after rotating for 180 degrees, so that the magnetic poles of the insertion and extraction block 332 and the locking blocks 334 on the two sides are the same, the locking blocks 334 are pushed out of the guide holes and inserted into the connecting holes 363 of the pulley 36, and the pulley 36 is installed quickly; when disassembled, the pulley 36 can be removed by merely changing the poles of the insertion and extraction block 332 to attract the lock 334 so that the lock 334 is hidden in the guide hole. In addition, since the connecting hole 363 cannot be observed after the pulley 36 is sleeved in the connecting shaft 331, the installation is inconvenient, but for the principle that like poles of magnets repel each other, the magnetic poles of the insertion and extraction block 332 are changed only after the pulley 36 is sleeved in, so that the locking block 334 is ejected outwards, at this time, the locking block 334 is fixed on the inner wall of the through hole of the pulley 36, and only the position of the pulley 36 needs to be adjusted until a 'click' sound is heard, namely, the insertion of the locking block 334 into the connecting hole 363 of the pulley 36 is explained.

In the above embodiment, as shown in fig. 1-7, the magnet 336 is clearance fit with the spacer 333, and the block body 335 is tightly fit with the spacer 333. Preferably, the block body 335 is made of plastic, which is easily compressed compared to metal, so that the insertion and extraction block 332 is more convenient to insert.

In one embodiment, as shown in fig. 1 to 7, the lock block 334 includes a lock block body 337 and a locking portion 338, the locking portion 338 is disposed on the lock block body 337 and has a stepped structure, the guide hole is a stepped hole engaged with the lock block, and the lock block body 337 is a magnet. The guide hole with the stepped structure is matched with the isolation sleeve 333, so that the locking block 334 is ensured to be positioned in the guide hole and cannot be separated from the connecting shaft 331. Preferably, the guide hole has a rectangular parallelepiped hole-like structure.

In one embodiment, as shown in fig. 1-7, the positioning planes 339 are symmetrically disposed on the sidewalls of the connecting shaft 331, and the through hole of the front wheel 4 is engaged with the connecting shaft 331. That is, a plane matching with the positioning plane 339 is arranged in the through hole, and when the two planes are attached, the locking block 334 is ensured to correspond to the connecting hole 363.

In a preferred embodiment, as shown in fig. 1-7, the connecting shaft 331 is made of plastic. The spacer 33 may also be made of plastic, which reduces the influence on the magnet; of course, other materials that are not attracted to magnets may be used.

In one embodiment, as shown in FIGS. 1-7, the mounting slot 34 has a mounting hole 37 formed in an inner wall thereof, the mounting hole 37 corresponding to the position of the lock 334 when the folding arm 32 is folded in position. Therefore, when the folding arm 32 is in the folded position, the locking piece 334 is pushed out and inserted into the fixing hole, and the locking of the folding arm 32 and the folding base 31 is completed.

In one embodiment, as shown in fig. 1 to 7, the folding wheel carrier 3 further includes four C-shaped clips 36, and the four C-shaped clips 36 are respectively disposed at two sides of the rotation center of the folding arm 32 for fixing the folding arm 32 to prevent the folding arm 32 from rotating.

When the pulley folding bracket is used, as shown in figures 1-7, the pulley folding bracket is only required to be arranged at the front and rear positions of the pulley, the insertion and extraction block 332 is pulled out, the magnetic poles of the magnets 336 relative to the locking block 334 are changed to enable the magnetic poles to be different, and the locking block 334 is attracted and separated from the fixing hole. The folding arm 32 is rotated, the C-shaped hoop 35 on one side is pulled out and clamped into the C-shaped hoop 35 on the other side, and the folding arm is prevented from naturally drooping when the tackle is lifted, so that the normal use of the tackle is prevented from being influenced. Then the pulley 36 is sleeved in, and the insertion and extraction block 332 is pulled out again to change the magnetic pole, so that the lock block 334 is inserted into the connecting hole 363 of the pulley 36. When folding, the above steps are reversed, the folding arm 32 is rotated into the mounting slot 34 after the pulley 36 is removed, and is secured by the locking block 334 and the C-shaped clip 35.

The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the invention; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the invention.

Claims

1. A pulley folding support for a children pulley is characterized by comprising pulleys, a folding base, two folding arms and a quick assembly mechanism, wherein the lower surface of the folding base is concavely provided with a mounting groove, the two folding arms are respectively and rotatably arranged at two ends of the mounting groove through a rotating shaft, and the quick assembly mechanism is arranged at the end part of each folding arm; when the foldable base is unfolded, the folding arms are protruded out of two ends of the foldable base; when folded, the folding arm is hidden in the mounting groove;

2. The pulley folding bracket for a children's tackle as claimed in claim 1, wherein the pulley includes a connecting portion and a rolling portion, the rolling portion is connected to the connecting portion in a rolling manner through a bearing, and the connecting portion is connected to the quick-assembly mechanism.

3. The folding bracket of pulley for children's tackle as claimed in claim 1, wherein said magnet is in clearance fit with said spacer sleeve, and said block body is in tight fit with said spacer sleeve.

4. The pulley folding bracket for a children's carriage according to claim 1, wherein the lock block includes a lock block body and a locking portion, the locking portion is provided on the lock block body and has a stepped structure, the guide hole is a stepped hole engaged with the lock block, and the lock block body is a magnet.

5. The pulley fold bracket for a child's carrier of claim 4, wherein the guide hole is a rectangular parallelepiped hole-like structure.

6. The pulley folding bracket for children's pulley according to claim 1, wherein the sidewall of the connecting shaft is symmetrically provided with positioning planes, and the through hole of the pulley is engaged with the connecting shaft.

7. The folding bracket of pulley for children's pulley as claimed in claim 1, wherein a fixing hole is formed on an inner wall of the mounting groove, the fixing hole corresponding to the position of the locking piece when the folding arm is folded to be in position.

8. The pulley folding bracket for children's pulley according to claim 1, wherein the folding wheel frame further comprises four C-shaped clips respectively disposed at both sides of the rotation center of the folding arm for fixing the folding arm against rotation.