CN220562795U - Quick detach folding device - Google Patents

Abstract

The utility model discloses a quick-dismantling folding device which comprises a seat chassis, a seat supporting rod, a hand push rod and a quick-dismantling sleeve, wherein two sides of the hand push rod are hinged with the seat supporting rod; a front fixing piece is connected below one end of the seat chassis and is hinged with the seat support rod; a rear fixing sheet is connected below the other end of the seat chassis and is hinged with the connecting block; the other side of the quick release sleeve is rotatably provided with a quick release wrench, the quick release wrench can lock or loosen the quick release sleeve and the hand push rod, when the quick release wrench is loosened, the quick release sleeve is manually moved upwards along the hand push rod, and then the seat chassis and the seat support rod are driven to be close to each other in the direction of the hand push rod, so that folding is completed. The folding device is simpler in structure and simple and convenient in folding process, realizes one-key folding or unfolding of the handcart, and is more time-saving and labor-saving; the structure is simple, the complex difficulty of the production process is reduced, and the production cost is reduced; the stability and the safety of the handcart are improved.

Description

Quick detach folding device

Technical Field

The utility model relates to the technical field of folding devices of trolleys, in particular to a quick-dismantling folding device.

Background

The child trolley is used as a tool for carrying children for traveling, and generally has a folding function, common trolley folding structures in the market are different, as disclosed in patent application 202021514883.5, the specification specifically discloses a child trolley which comprises a seat assembly, an upper handle pipe, a lower handle pipe, a front foot pipe, a rear foot pipe, a handle pipe locking assembly, a vehicle body locking assembly and a seat mounting assembly, wherein the handle pipe locking assembly is used for locking the rotating states of the upper handle pipe and the lower handle pipe, the vehicle body locking assembly is used for locking the coaxial rotating states of the lower handle pipe, the front foot pipe and the rear foot pipe, and the vehicle body locking assembly is used for locking the linkage folding after unlocking through pressing each locking assembly of the vehicle body;

the applicant has found that the above-described trolley folding structure has the following drawbacks: (1) the structure is complex, the folding process is complex, and time and labor are wasted; (2) complicated production process and increased production cost; (3) the seat assembly is fixed only by the seat mounting assembly, so that stability and safety are insufficient, and certain potential safety hazards exist when children sit.

Therefore, the applicant proposes to design a folding device that is simple in structure and that can be folded or unfolded rapidly.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a quick-dismantling folding device aiming at the defects in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a quick-dismantling folding device comprises a seat chassis, a seat support rod, a hand push rod and a quick-dismantling sleeve;

seat struts are hinged to two sides of the hand push rod; the quick-release sleeve is sleeved on the hand push rod;

the top end of the seat support rod is hinged with one end of the seat chassis; the other end of the seat chassis is hinged with the side end of the quick-release sleeve;

the quick-release wrench is arranged on one side of the quick-release sleeve in a rotating mode, the quick-release sleeve can be locked or loosened with the hand push rod, and when the quick-release sleeve is loosened, the quick-release sleeve can move up and down along the hand push rod.

Preferably, a limit box is arranged at the hinge joint of the hand push rod and the seat support rod, one side of the limit box is penetrated with a limit pin, and the limit pin can be propped against or separated from the seat support rod.

Preferably, one side of the quick release sleeve, which is far away from the quick release wrench, is connected with a connecting block, and the end part of the connecting block is hinged with the seat chassis.

Preferably, a front fixing piece is connected below one end of the seat chassis and is hinged with the seat support rod through a pin;

the lower part of the other end of the seat chassis is connected with a rear fixing piece which is hinged with the quick-release sleeve through a pin.

Preferably, the included angle between the connecting block and the quick-release sleeve is 90 degrees.

The utility model has the beneficial effects that:

compared with the prior art, the quick-release folding structure is simpler, the folding process is simple and convenient, the quick-release sleeve and the hand push rod are locked or loosened by rotating the quick-release wrench, and the quick-release sleeve is moved, so that the seat chassis and the seat support rod are linked, one-key folding or unfolding of the handcart is realized, and the time and the labor are saved; the structure is simple, the complex difficulty of the production process is reduced, and the production cost is reduced; and the seat chassis is connected with the seat support rod and the quick-release sleeve simultaneously, namely, the seat assembly is supported by the seat support rod and the trolley rod together, so that the stability and the safety of the seat assembly are improved.

Drawings

For ease of illustration, the utility model is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic view showing an unfolded state structure of the present embodiment;

fig. 2 is a schematic diagram showing a folded state structure of the present embodiment.

In the figure:

100-a seat pan; 110-a front fixing piece;

120-a rear fixing piece;

200-seat struts;

300-a hand push rod;

400-quick-release sleeve; 410-quick release wrench;

420-an engagement block;

500-limit boxes; 510-stop pins.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments; in the following description, specific details such as specific configurations and devices are provided merely to facilitate a thorough understanding of embodiments of the utility model. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the utility model. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

1-2 show a quick-release folding device for folding and accommodating a child trolley, which comprises a seat chassis 100, a seat support rod 200, a push rod 300 and a quick-release sleeve 400, wherein a seat assembly of the trolley can be fixedly arranged above the seat chassis 100, the seat support rod 200 and the bottom end of the push rod 300 are used for installing wheels, and the top of the push rod 300 is used for installing a push handle, so that an integral framework of the trolley is formed; the two sides of the hand push rod 300 are hinged with the seat support rod 200 through pins, the quick release sleeve 400 is sleeved on the hand push rod 300, and the upper end of one side of the quick release sleeve 400 is connected with a connecting block 420; a front fixing piece 110 is connected below one end of the seat chassis 100, and the front fixing piece 110 is hinged with the seat support rod 200 through a pin; a rear fixing piece 120 is connected below the other end of the seat chassis 100, and the rear fixing piece 120 is hinged with a connecting block 420 through a pin;

the other side of the quick release sleeve 400 is rotatably provided with a quick release wrench 410, the quick release wrench 410 can lock or loosen the quick release sleeve 400 and the hand push rod 300, when the quick release wrench 410 is rotated to loosen the quick release sleeve 400 and the hand push rod 300, the quick release sleeve 400 is manually moved upwards along the hand push rod 300, as the seat chassis 100 is hinged with the connecting block 420 and the seat support rod 200, when the connecting block 420 is upwards moved, the seat chassis 100 is driven to be close to the hand push rod 300, the seat support rod 200 is further driven to be close to the hand push rod 300 until the positions of the seat support rod 200 and the hand push rod 300 almost coincide, at the moment, the quick release wrench 410 is rotated to be attached to the quick release sleeve 400, and the quick release sleeve 400 and the hand push rod 300 are locked, so that folding is completed.

Therefore, compared with the prior art, the quick-release folding structure of the embodiment is simpler, the folding process is simple and convenient, the quick-release sleeve 400 and the hand push rod 300 are locked or loosened by rotating the quick-release wrench 410, and the quick-release sleeve 400 is moved, so that the seat chassis 100 and the seat support rod 200 are linked, one-key folding or unfolding of the handcart is realized, and the time and the labor are saved; in addition, the seat chassis 100 is connected with the seat support rod 200 and the quick-release sleeve 400 at the same time, namely, the seat assembly is supported by the seat support rod 200 and the trolley rod together, so that the stability and the safety of the seat assembly are improved.

Further, a limit box 500 is arranged at the hinge joint of the hand push rod 300 and the seat support rod 200, a limit pin 510 penetrates through one side of the limit box 500, when the hand push rod 300 is unfolded at a certain angle with the seat support rod 200, the limit pin 510 is propped against the seat support rod 200, the maximum angle between the hand push rod 300 and the seat support rod 200 is limited, the stability of the hand push rod seat assembly is ensured, and when the hand push rod 300 is close to the seat support rod 200, the limit pin 510 is separated from the seat support rod 200.

Further, in order to facilitate the hinging of the connecting block 420 and the rear fixing piece 120, the seat chassis 100 is better linked when the quick release sleeve 400 moves, and the connecting block 420 and the quick release sleeve 400 are integrally formed with each other at an included angle of 90 degrees.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, means, and/or combinations thereof.

In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the present application. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (5)

1. The quick-dismantling folding device is characterized by comprising a seat chassis (100), a seat support rod (200), a hand push rod (300) and a quick-dismantling sleeve (400);

two sides of the hand push rod (300) are hinged with the seat support rods (200); the quick-release sleeve (400) is sleeved on the hand push rod (300);

the top end of the seat support rod (200) is hinged with one end of the seat chassis (100); the other end of the seat chassis (100) is hinged with the side end of the quick release sleeve (400);

the quick-release wrench (410) is rotatably arranged on one side of the quick-release sleeve (400), and the quick-release wrench (410) can lock or loosen the quick-release sleeve (400) and the hand push rod (300), and when the quick-release sleeve is loosened, the quick-release sleeve (400) can move up and down along the hand push rod (300).

2. The quick-release folding device according to claim 1, wherein a limit box (500) is arranged at the hinge joint of the hand push rod (300) and the seat support rod (200), a limit pin (510) penetrates through one side of the limit box (500), and the limit pin (510) can be propped against or separated from the seat support rod (200).

3. The quick release folding device according to claim 1, wherein a connecting block (420) is connected to a side of the quick release sleeve (400) away from the quick release wrench (410), and an end of the connecting block (420) is hinged to the seat chassis (100).

4. The quick release folding device according to claim 1, wherein a front fixing piece (110) is connected below one end of the seat chassis (100), and the front fixing piece (110) is hinged with the seat support rod (200) through a pin;

the lower part of the other end of the seat chassis (100) is connected with a rear fixing piece (120), and the rear fixing piece (120) is hinged with a quick-release sleeve (400) through a pin.

5. A quick release folding device according to claim 3, wherein the engagement block (420) is at an angle of 90 degrees to the quick release sleeve (400).