CN220163971U - Carrying device - Google Patents

Abstract

The utility model discloses a carrying device which is in an unfolding state and a folding state, wherein the carrying device comprises a chassis with wheels, a supporting frame horizontally arranged above the chassis and two side frames oppositely arranged and connected with the chassis and the supporting frame, the chassis, the side frames and the supporting frame enclose a containing space, each side frame comprises a first swing rod and a second swing rod, the tops of the two swing rods are hinged with the supporting frame, the bottoms of the two swing rods are in sliding fit with the chassis, in the folding process, the supporting frame moves downwards to be close to the chassis, the tops of the two swing rods swing around a hinging point, and the bottoms of the two swing rods slide relative to the chassis, so that the position of the supporting frame in the horizontal direction is basically unchanged. The dimensions of the folded state and the unfolded state in the horizontal direction are basically the same, so that the folding storage and the transportation are facilitated.

Description

Carrying device

Technical Field

The utility model relates to the technical field of transportation carriers, in particular to a foldable carrying device.

Background

The transport vehicle is mainly used for loading articles or young children, has extremely strong trafficability, and is often folded for facilitating usual storage and accommodation. For example, chinese patent publication No. CN 208036335U discloses an outdoor cart, which represents a folding manner of most outdoor carts currently on the market, folding and shrinking in the width direction or the length direction are achieved through a scissor structure, folding and unfolding at least require two hands to apply forces on two sides, and the push rod does not play any role in the folding and unfolding process, and folding is laborious.

For example, other baby carts or pet carts can be folded in the height direction, but the length of the folded baby carts is not beneficial to storage due to dislocation of the upper surrounding frame and the lower surrounding frame, so that the length or the width of the baby carts are prolonged.

Disclosure of Invention

The utility model provides a carrying device, the dimensions of the folding state and the unfolding state are basically the same in the horizontal direction, and folding storage and transportation are facilitated.

The utility model provides a carrying device which is in an unfolding state and a folding state, wherein the carrying device comprises a chassis with wheels, a supporting frame horizontally arranged above the chassis and two side frames oppositely arranged and connected with the chassis and the supporting frame, the chassis, the side frames and the supporting frame enclose a containing space, each side frame comprises a first swing rod and a second swing rod, the tops of the two swing rods are hinged with the supporting frame, the bottoms of the two swing rods are in sliding fit with the chassis, in the folding process, the supporting frame moves downwards to be close to the chassis, the tops of the two swing rods swing around a hinging point, and the bottoms of the two swing rods slide relative to the chassis, so that the position of the supporting frame in the horizontal direction is basically unchanged.

The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.

Optionally, the first swing link and the second swing link are arranged in parallel.

Optionally, a first sliding piece is slidably installed on the chassis, and bottoms of the first swing rod and the second swing rod are hinged to the first sliding piece.

Optionally, in the unfolded state, the first swing link and the second swing link are obliquely arranged.

Optionally, each side frame includes an upper stay bar with one end hinged to the first swing rod and capable of sliding relatively, and the other end hinged to the support frame.

Optionally, a second sliding piece is slidably installed on the first swing rod, and the bottom of the upper stay rod is hinged with the second sliding piece.

Optionally, the upper supporting rods corresponding to the two side frames extend upwards to exceed the supporting frames to form push rods, and the tops of the two push rods are bent and connected into a whole.

Optionally, each side frame includes a lower stay bar with two ends respectively hinged to the second swing rod and the bottom frame.

Optionally, the device comprises a cloth cover lined in the accommodating space, wherein the bottom of the cloth cover is positioned on the underframe and supported by the underframe.

The utility model also provides another carrying device which is in an unfolding state and a folding state, wherein the carrying device comprises a chassis with wheels, a supporting frame horizontally arranged above the chassis and two side frames which are oppositely arranged and connected with the chassis and the supporting frame, the side frames comprise a first swing rod and an upper supporting rod, the top of the first swing rod is hinged with the supporting frame, the bottom of the first swing rod is in sliding fit with the chassis, the top of the upper supporting rod is hinged with the supporting frame, the bottom of the upper supporting rod is hinged with the first swing rod and can slide relatively, the supporting frame moves downwards to be close to the chassis in the folding process, and the bottom of the first swing rod slides relatively to the chassis, so that the position of the supporting frame in the horizontal direction is basically unchanged.

The utility model also provides another carrying device which is in an unfolding state and a folding state, wherein the carrying device comprises a chassis with wheels, a supporting frame horizontally arranged above the chassis and two side frames which are oppositely arranged and connected with the chassis and the supporting frame, the side frames comprise a second swing rod and a lower supporting rod, the top of the second swing rod is hinged with the supporting frame, the bottom of the second swing rod is in sliding fit with the chassis, the top of the lower supporting rod is hinged with the chassis, the bottom of the lower supporting rod is hinged with the second swing rod, the supporting frame moves downwards to be close to the chassis in the folding process, and the lower supporting rod acts on the second swing rod to enable the bottom of the lower supporting rod to slide relative to the chassis, so that the position of the supporting frame in the horizontal direction is basically unchanged.

The carrying device has the same size in the horizontal direction in the folded state and the unfolded state, and is favorable for folding, storing and transferring.

Drawings

FIG. 1 is a view showing the structure of a carrier device in an unfolded state according to an embodiment of the present utility model;

fig. 2 is a view of the structure of the carrier of fig. 1 during unfolding/folding;

fig. 3 is a structural view of the carrier of fig. 1 in a folded state.

Reference numerals in the drawings are described as follows:

100. a chassis; 101. a front; 102. the rear part; 103. the upper part; 104. the lower part; 110. a wheel; 120. a first slider;

210. a support frame; 230. a side frame; 231. a first swing rod; 232. the second swing rod; 240. a lower stay bar; 250. an upper stay bar; 260. and a second slider.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

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

Referring to fig. 1 to 3, the present utility model provides a carrier having an unfolded state and a folded state, which includes a chassis 100 with wheels 110, a supporting frame 210 horizontally disposed above the chassis 100, and two side frames 230 oppositely disposed to connect the chassis 100 and the supporting frame 210. First, the carrier is defined to have an upper side 103 and a lower side 104, and a front side 101 and a rear side 102, indicated in the drawing, wherein the front and rear sides are longitudinal and width directions, respectively, and the horizontal direction is the direction in which the longitudinal and width directions are located. The side frames 230 may be provided on both sides in the length or width direction, and are preferably provided on both sides in the width direction as in the present embodiment, and only one side frame is shown in the drawings. The bottom frame 100, the side frames 230 and the supporting frame 210 enclose a receiving space, and the receiving space is preferably lined with a cloth cover to store articles or carry children.

Each side frame 230 includes a first swing link 231 and a second swing link 232, the top parts of the two swing links are hinged to the supporting frame 210, the shapes of the two swing links may be the same or different, as long as the supporting frame 210 is kept in a horizontal state, the bottoms of the two swing links are in sliding fit with the chassis 100, and because the swing links rotate in the folding process, the swing links are hinged to the chassis 100 at a hinge point, so that the top parts of the two swing links swing around the hinge point, and finally the swing links slide simultaneously in the rotating process. Specifically, the first swing link 231 and the second swing link 232 rotate towards the chassis 100, the supporting frame 210 moves down to be close to the chassis 100, and the bottoms of the two swing links slide relative to the chassis 100, so that the position of the supporting frame 210 in the horizontal direction is basically unchanged. The method for achieving the folding effect is that the underframe 100, the supporting frame 210 and the two swinging rods form a foldable quadrilateral, firstly, the condition that the supporting frame 210 is always kept horizontal in the folding process is satisfied, and secondly, the two swinging rods can slide on the underframe 100 to offset the offset of the supporting frame 210 in the length direction in the rotating process. Of course, there is no movement in the width direction, and thus no variation in the width direction. Preferably, the first swing link 231 and the second swing link 232 are arranged in parallel. In one embodiment, each side frame 230 includes a lower brace 240 with two ends hinged to the second swing link 232 and the bottom frame 100 respectively, so that the lower brace 240 pushes the second swing link 232 to slide the sliding portion thereof to the rear 102 during folding, and the lower brace 240 pulls the second swing link 232 to slide the sliding portion thereof to the front 101 during unfolding, and forms a stable triangle with the second swing link 232 and the bottom frame to keep the side frame 230 unfolded, and the first swing link 231 slides in the same direction with the second swing link 232 during unfolding, for example, a linkage rod is hinged between the two swing links to realize synchronous sliding.

In an embodiment, the first slider 120 is slidably mounted on the chassis 100, and one ends of the first swing link 231 and the second swing link 232 are hinged to the first slider 120. When one of the swing rods slides, the other swing rod can slide synchronously immediately, so that the sliding smoothness is improved and the support frame 210 is kept horizontal. The first slider 120 has a tubular shape, and may or may not have a closed cross-sectional shape, depending on whether the chassis 100 is provided with a reinforcing bar on the sliding path of the first slider 120, to avoid sliding interference. In the unfolded state, the first swing link 231 and the second swing link 232 are obliquely arranged, the included angle between the first swing link 231 and the horizontal plane is alpha, and the included angle alpha is continuously reduced during folding without 90 degrees, so that the unfolding/folding process is smoother.

In one embodiment, each side frame 230 includes an upper brace 250 with a bottom portion hinged to the first swing link 231 and a top portion hinged to the support frame 210. When the locking mechanism provided at any hinge point or sliding engagement point is locked, the upper stay 250 forms a stable triangle with the first swing link 231 and the support frame 210 in the unfolded state to maintain the carrier in the unfolded state, and effectively improves the strength of the side frame in the unfolded state together with the lower stay 240 as described above, allowing the two swing links to be arranged obliquely and reducing or even eliminating sloshing. Once the locking mechanism is released, the upper stay bar 250 slides and acts on the first swing rod 231 to start moving while being stressed to rotate, and the corresponding second swing rod 232 synchronously moves under the drive of the supporting frame 210. Wherein a second slider 260 is slidably mounted on the first swing link 231, and the bottom of the upper stay 250 is hinged to the second slider 260. And two corresponding upper stay bars 250 of the two side frames extend upwards and exceed the supporting frame 210, the exceeding parts form push rods, the tops of the two push rods are bent and connected into a whole for holding and pushing, and the upper stay bars 250 are rotated by conveniently applying acting force.

The entire folding operation will be described again here, taking the folding process as an example: the top of the push rod rotates forward, the bottom rotates and slides relative to the first swing rod 231, so that the supporting frame 210 and the first swing rod 231 start to move, the supporting frame 210 drives the second swing rod 232 to rotate, the lower supporting rod 240 correspondingly rotates and pushes against the second swing rod 232, the first sliding piece 120 slides to the rear side, and the movement of the components starts at the same moment and ends at the same moment. Wherein the top of the upper stay 250 (push rod) is at the front side and the bottom is at the rear side in the folded state, and does not exceed the length range of the carrier, the dimension in the horizontal direction is still unchanged. Compared with the traditional cart, the push rod plays a role in driving unfolding/folding.

The cloth cover of the present embodiment is gradually folded along with the folding process, and in the unfolded state, the bottom of the cloth cover is located on the chassis 100 and supported by the chassis 100. The underframe 100 is horizontally arranged without undulation, so that the two swing rods and the supporting frame 210 can be more close to the underframe 100, the bottom is flat, the accommodating space is large, and children can sit comfortably.

The present utility model also provides another carrier having an unfolded state and a folded state, which includes a chassis 100 with wheels 110, a support frame 210 horizontally disposed above the chassis 100, and two side frames 230 oppositely disposed to connect the chassis 100 and the support frame 210. The side frame 230 includes a first swing link 231 and an upper stay 250, wherein the top of the first swing link 231 is hinged to the supporting frame 210, the bottom of the first swing link 231 is in sliding fit with the bottom of the bottom frame 100, the top of the upper stay 250 is hinged to the supporting frame 210, the bottom of the upper stay 250 is hinged to the first swing link 231 and can slide relatively, during the folding process, the first swing link 231 rotates towards the bottom frame 100, the supporting frame 210 moves downwards to be close to the bottom frame 100, and the position in the horizontal direction is kept basically unchanged. The upper stay bar 250 forms a stable triangle with the first swing rod 231 and the support frame 210 in the unfolded state to keep the carrier unfolded, and in the folding process, the upper stay bar 250 receives external force to drive the first swing rod 231 to rotate so as to realize the downward movement of the support frame 210. Other structures are not further described herein with reference to the foregoing embodiments.

The present utility model also provides another carrier having an unfolded state and a folded state, which includes a chassis 100 with wheels 110, a support frame 210 horizontally disposed above the chassis 100, and two side frames 230 oppositely disposed to connect the chassis 100 and the support frame 210. The side frame 230 includes a second swing link 232 and a lower stay 240, the top of the second swing link 232 is hinged to the supporting frame 210, the bottom of the second swing link 232 is in sliding fit with the bottom of the bottom frame 100, the top of the lower stay 240 is hinged to the bottom of the bottom frame 100, the bottom of the lower stay 240 is hinged to the second swing link 232, and the supporting frame 210 moves down to be close to the bottom frame 100 during folding, and the lower stay 240 acts on the second swing link 232 to enable the bottom of the lower stay 232 to slide relative to the bottom frame 100, so that the position of the supporting frame 210 in the horizontal direction is kept substantially unchanged. Other structures are not further described herein with reference to the foregoing embodiments.

The carrying device is basically consistent or unchanged in size in the horizontal direction in the unfolding state and the folding state, is convenient to store and store, and the supporting frame is kept horizontal all the time, so that the carrying device is convenient to fold.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (10)

1. The carrying device comprises a chassis with wheels, a supporting frame horizontally arranged above the chassis and two side frames oppositely arranged and connected with the chassis and the supporting frame, wherein the chassis, the side frames and the supporting frame enclose a containing space.

2. The carrier of claim 1, wherein the first and second swing arms are arranged in parallel.

3. The carrier of claim 1, wherein the chassis has a first slider slidably mounted thereon, and wherein the bottoms of the first and second swing arms are each hinged to the first slider.

4. The carrier of claim 1, wherein in the deployed state, the first and second swing arms are arranged obliquely.

5. The carrier of claim 1 wherein each side frame includes an upper brace having a bottom portion pivotally connected to the first swing link and a top portion pivotally connected to the support frame.

6. The carrier of claim 5, wherein the first swing link has a second slide slidably mounted thereon, the bottom of the upper stay being hinged to the second slide.

7. The carrier of claim 5 wherein the upper braces of the side frames extend upwardly beyond the support frame to form push rods, the tops of the push rods being integrally curved.

8. The carrier of claim 1, wherein each side frame includes a lower brace having opposite ends respectively hinged to the second swing link and the undercarriage.

9. The carrying device comprises a chassis with wheels, a supporting frame horizontally arranged above the chassis and two side frames oppositely arranged and connected with the chassis and the supporting frame, and is characterized in that the side frames comprise a first swing rod and an upper supporting rod, wherein the top of the first swing rod is hinged to the supporting frame, the bottom of the first swing rod is in sliding fit with the chassis, the top of the upper supporting rod is hinged to the supporting frame, the bottom of the upper supporting rod is hinged to the first swing rod and can slide relatively, in the folding process, the supporting frame moves downwards to be close to the chassis, and the bottom of the first swing rod slides relatively to the chassis, so that the position of the supporting frame in the horizontal direction is basically unchanged.

10. The carrying device comprises a chassis with wheels, a supporting frame horizontally arranged above the chassis and two side frames oppositely arranged and connected with the chassis and the supporting frame, and is characterized in that the side frames comprise a second swing rod and a lower supporting rod, the top of the second swing rod is hinged to the supporting frame, the bottom of the second swing rod is in sliding fit with the chassis, the top of the lower supporting rod is hinged to the chassis, the bottom of the lower supporting rod is hinged to the second swing rod, the supporting frame moves downwards to be close to the chassis in the folding process, and the lower supporting rod acts on the second swing rod to enable the bottom of the second swing rod to slide relative to the chassis, so that the position of the supporting frame in the horizontal direction is basically unchanged.