Patent ID: 12246769

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

In order to describe the technical content and structural features of the disclosure in detail, the following illustration is provided conjunction with the embodiments and the accompanying drawings.

Referring toFIGS.1to5, the disclosure provides a carrier100. The carrier100has a noise reduction structure101. The noise reduction structure101comprises a stroller frame10, a supporting frame20connected to the stroller frame10, and a wheel40mounted on the supporting frame2. In this embodiment, the carrier100may be a hand cart such as a baby stroller, a shopping cart and the like. In other words, the stroller frame10may be a frame for a baby stroller, or any other kind of hand carts. When a force is applied to the supporting frame20, the wheel40mounted on the supporting frame20will contact a supporting surface to slide, and the supporting surface may be the ground or the like. Specifically, an elastic resetting member22is arranged between the supporting frame20and the stroller frame10, and the resetting member22always has a tendency to reset the supporting frame20, such that the supporting frame20lifts the wheel40, so as to avoid the friction between the wheel40and the supporting surface to generate noise. It would be understood, when the supporting frame20is unloaded, due to the gravity of the supporting frame20and the wheel40, there will be a downward tendency to cause the wheel40and the supporting surface to contact each other and thus generating friction and noise. Since the resetting member22is arranged between the stroller frame10and the supporting frame20, the supporting frame20may be lifted and bring the wheel40to rise, so as to avoid the friction between the wheel40and the supporting surface and the noise generated by the friction.

After the above technical solution is adopted, due to the noise reduction structure101of the disclosure, the elastic resetting member22is arranged between the stroller frame10and the supporting frame20, the resetting member22is reset to bring the supporting frame20to move upward, and then the supporting frame20brings the wheel40to rise so as to avoid the friction between the wheel40and the supporting surface to generate noise. On the bottom of the supporting frame20, the wheel40for auxiliary support and for sliding is provided. If the supporting frame20receive a force, it will act on the wheel40, and drive the wheel40to move downward to contact the supporting surface to slide, while the wheel40can play a role of support and sliding. The elastic resetting member22is arranged between the supporting frame20and the stroller frame10, so, when the force on the supporting frame20is removed, the resetting member22may bring the supporting frame20to perform an upward resetting movement, thereby bringing the wheel40to rise, and in turn, avoiding noise generated from the friction between the wheel40and the supporting surface while the supporting frame is unloaded. The noise reduction structure101according to the disclosure is simple in structure. By adding a resetting member22between the supporting frame20and the stroller frame10, so that the supporting frame20always has a resetting tendency, i.e., when the supporting frame20is unloaded, the resetting member22may bring the supporting frame20to rise and drive the wheel40to rise, so the wheel40is suspended, and noise generated from the friction between the wheel40and the supporting surface is avoided.

Referring toFIG.1, a standing plate30is also arranged on the supporting frame20. The standing plate30may receive a force and acts on the supporting frame20, so that the wheel40mounted on the supporting frame20may contact the supporting surface to slide. The standing plate30may be detachably mounted on the supporting frame20. The standing plate30is arranged on the supporting frame20, which can be used better for children to stand or storing objects, and which has a simple structure and is convenient for use. It would be understood, when a child stands on the standing plate30, or a heavy object is placed on the standing plate30, the force applied on the standing plate30may act on the supporting frame20and drive the wheel40to move downward to contact the supporting surface to slide, while the wheel40can play a role of support and slide. When the standing plate30is unloaded, the resetting member22may cause the supporting frame20to rise and bring the wheel40to rise, such that the wheel40is suspended, so as to avoid friction between the wheel40and the supporting surface to generate noise. Referring toFIGS.2to7, in some optional embodiments, an elastic stretching member25is arranged between the stroller frame10and the supporting frame20. The stretching member25has a first elastic force which downwardly stretches the supporting frame20, such that the wheel40mounted on the supporting frame20moves downward and contact the supporting surface. The stretching member25which may downwardly stretches and has an elasticity is arranged between the stroller frame10and the supporting frame20, so the stroller frame10, the supporting frame20and the stretching member25are in a triangular structure. By the arrangement of the stretching member25, the structure between the stroller frame10and the supporting frame20may be more stable and will not shake. Specifically, the resetting member22has a second elastic force which will upwardly stretch the supporting frame20, and the second elastic force is greater than the first elastic force. The resetting member22on the supporting frame20has a stretching force to upwardly stretch the supporting frame20, and the stretching member25has a stretching force to downwardly stretch the supporting frame20. Only when the upward force is greater than the downward force, can the wheel40be lifted upward, so as to avoid the friction between the wheel40and the supporting surface to generate noise. It would be understood, when a force is applied on the standing plate30, the supporting frame20and the fixing member21may have a downward movement tendency, and bring the fixing member21to slide along the mounting rod23to compress the resetting member22. The fixing member21converts the force in the vertical direction into the force in the horizontal direction, that is, the downward force of the standing plate30is converted into the force in the horizontal direction to drive the fixing member21to slide along the mounting rod23. At this time, the resetting member22is compressed between the fixing member21and the limit nut234and energy is stored therein. If the standing plate30is unloaded, the stretching member25still has the force to downwardly stretch the supporting frame20, such that the entire supporting frame20is structurally stable without shaking. Since the second elastic force stored by compression in the resetting member22is greater than the first elastic force of the stretching member25for downwardly the stretching supporting frame20and the sum of the gravity of the standing plate30, the supporting frame20and the wheel40. Therefore, the second elastic force of the resetting member22may drive the supporting frame20to rise, and drive the wheel40to rise, so as to avoid the friction between the wheel40and the supporting surface to generate noise.

Referring toFIGS.3to5, in some optional embodiments, the noise reduction structure101further includes a fixing member21, a mounting rod23and a mounting member24. The fixing member21is used to connect and fix the stroller frame10and the supporting frame20. The mounting member24is arranged on the stroller frame10and used for mounting the standing plate30. One end of the mounting rod23is arranged on the mounting member24, and the other end of the mounting rod23is arranged on the fixing member21. Specifically, the fixing member21is provided with a protruding protrusion part211in a first direction, and a through slot2111is arranged on the protrusion part211for the mounting rod23to pass through. The mounting rod23is provided with a limit nut234for limiting at the end close to the through slot2111, and the mounting rod23is further provided with a threaded part233at the end for cooperating with the limit nut234. The limit nut234located at the end of the mounting rod23may prevent the fixing member21from sliding out of the mounting rod23during sliding. When a force is applied on the standing plate30, the fixing member21slides along the mounting rod23at the through slot2111. Moreover, the resetting member22passes through and is mounted on the mounting rod23and is located between the limit nut234and the fixing member21, if a force is applied on the standing plate30so that the fixing member21slides and compresses the resetting member22through the protrusion part211. That is, when a force is applied on the standing plate30, the fixing member21will have a tendency to move downward, and tendency to move downward will be converted into a horizontal movement and the resetting member22will be correspondingly compressed. When the force on the standing plate30is removed, the fixing member21will have a tendency to return upward to release the compressed resetting member22, thereby bringing the supporting frame20and the wheel40to rise, so as to prevent the wheel40from generating noise by contacting the supporting surface. In addition, the fixing member21is also provided with a connecting part210for connecting the stroller frame10and the supporting frame20. The connecting part210includes a top wall212and a bottom wall213arranged opposite to each other. The top wall212and the bottom wall213are connected by a side wall214. The side wall214is arranged in a curved surface, and the stroller frame10is mounted between the top wall212and the bottom wall213and abuts against the side wall214. Moreover, the supporting frame20is mounted between the top wall212and the bottom wall213along a second direction and protrudes out of the fixing member21. The top wall212is provided at an end close to the side wall214with a first limit block2121for limiting the sliding of the stroller frame10in a second direction, and the bottom wall213is provided at an end close to the side wall214with a second limit block2131for limiting the sliding of the stroller frame10in the second direction. Since the supporting frame20often slides due to a force applied thereon, and the supporting frame20is connected to the stroller frame10, a first limit block2121and a second limit block2131are arranged in the fixing member21, which can not only make the connection between the stroller frame10and the supporting frame20more stable, and can also prevent the supporting frame20from directly acting on the stroller frame10during sliding, thereby prolonging the service life of the stroller frame10, so as to avoid damage to the stroller frame10due to friction. It would be understood, the first direction and the second direction are perpendicular to each other, moreover, the first direction is a direction perpendicular to the supporting surface, and the second direction is a direction parallel to the supporting surface. Furthermore, the supporting surface may be the ground.

Referring toFIGS.3to5, in some optional embodiments, one end of the mounting member24is provided with a mounting part241for the mounting rod23to pass through and be mounted therein. The mounting part241protrudes out of the mounting member24, and is provided with a hole for the mounting rod23to pass through. One end of the mounting rod23is provided with a fixing part231having a width greater than a diameter of the mounting rod23. The mounting rod23passes through the mounting part241and is engaged with the mounting part241of the mounting member24through the fixing part231. By the arrangement of the fixing part231, the mounting rod23may be prevented from being detached from the mounting member24while the mounting rod23is moving. In addition, the fixing part231of the mounting rod23is provided with a mounting hole232, and the mounting member24is provided with a first through hole242. The first through hole242is close to the mounting part241. The stroller frame10is provided with a second through hole102which is coaxial with the first through hole242. The mounting member24is further provided with a connecting member which sequentially passes through the mounting hole232, the first through hole242and the second through hole102, and fixes the mounting rod23and the mounting member24to the stroller frame10, and meanwhile makes the connection between the mounting rod23and the mounting member24more stable. It would be understood, the connecting member may be a screw arbor or the like. The screw arbor passes through the mounting hole232, the first through hole242and the second through hole102, and is fastened by a nut, and the structure is simple and stable. The standing plate30is mounted on the stroller frame10by the mounting member24, and the mounting rod23is mounted on the mounting member24and connected to the fixing member21, such that when a force is applied on the standing plate30, the mounting rod23, the fixing member21and the supporting frame20all receive the force from the standing plate30.

Referring toFIGS.3to5, in some optional embodiments, the resetting member22includes a spring structure, and the stretching member25may be a tension spring. The resetting member22of the spring structure is located between the protrusion part211of the fixing member21and the limit nut234. When a force is applied on the standing plate30, it acts on the spring through the protrusion part211of the fixing member21, such that the spring is compressed between the protrusion part211and the limit nut234. After the force on the standing plate30is removed, the spring can rebound quickly. In this embodiment, the tension spring has a first end251and a second end252. The first end251is detachably arranged on the supporting frame20, and the second end252is connected to the stroller frame10. A positioning member26is arranged on the supporting frame20for engaging the first end251. The middle portion of the positioning member26is an engaging portion with a smaller diameter, and the first end251is engaged in the engaging portion.

Referring toFIGS.6and7, in some optional embodiments, there is no resetting member22arranged between the supporting frame20and the stroller frame10. In order to make the overall structure of the supporting frame20and the stroller frame10more stable, the stretching member25is arranged under the supporting frame20and the stroller frame10. Under the action of the stretching force of the stretching member25, the wheel40always contacts the supporting surface, such that the wheel40and the supporting surface always move in friction in relative to each other and generate noise. If the stretching member25is arranged above the supporting frame20and the stroller frame10, at this time, the stretching member25would play a role corresponding to the resetting member22, and the stretching member25would apply an upwardly stretching force, which may not only avoid shaking between the supporting frame204and the stroller frame10, but also play a role of lifting the supporting frame20, so as to bring the wheel40to rise and thus avoiding noise generated by the friction between the wheel40and the supporting surface.

As shown inFIGS.1to5, in the noise reduction structure101according to the disclosure, the elastic resetting member22is arranged between the stroller frame10and the supporting frame20, and the resetting member22resets to bring the supporting frame20to move upward, and then the supporting frame20brings the wheel40to rise so as to avoid the friction between the wheel40and the supporting surface to generate noise. The standing plate30is arranged on the supporting frame20for a child or children to stand on, and the wheel (s)40is arranged on the bottom of the supporting frame20for auxiliary support and for sliding. When a child stands on the standing plate30, or a heavy object is placed on standing plate30, the force applied on the standing plate30will act on the supporting frame20, and drives the wheel40moving downward to contact the supporting surface to slide, so the wheel40may play a role of supporting and sliding. The elastic resetting member22is arranged between the supporting frame20and the stroller frame10. Accordingly, when the force on the standing plate30is removed, the resetting member22may bring the supporting frame20to perform an upward resetting movement, thereby brining the wheel40to rise, and thus avoiding noise generated by friction between the wheel40and the supporting surface when the standing plate30is unloaded. Furthermore, a locking member50is additionally arranged at one end of the supporting frame20away from the stroller frame10, the locking member50may be used for locking the carrier100to prevent the carrier100from sliding. The noise reduction structure101according to the disclosure is simple in structure, and by additionally arrange a resetting member22between the supporting frame20and the stroller frame10, the supporting frame20always has a resetting tendency, that is, when the standing plate30is unloaded, the resetting member22may lift the supporting frame20up and bring the wheel40to rise, so as to avoid the friction between the wheel40and the supporting surface to generate noise while the wheel40is suspended.

What disclosed above are only preferred embodiments of the disclosure, and the scope of the disclosure certainly cannot be limited by this. Therefore, any equivalent changes made according to the scope of the disclosure still belong to the disclosure.

REFERENCE NUMERAL LIST

100: carrier;101: noise reduction structure;10: stroller frame;102: second through hole;20: supporting frame;21: fixing member;210: connecting part;211: protrusion part;2111: through slot;212: top wall;2121: first limit block;213: bottom wall;2131: second limit block;214: side wall;22: resetting member;23: mounting rod;231: fixing part;232: mounting hole;233: threaded part;234: limit nut;24: mounting member;241: mounting part;242: first through hole;25: stretching member;251: first end;252: second end;26: positioning member;30: standing plate;40: wheel;50: locking member.