CN215776225U - Folding structure - Google Patents

Abstract

The utility model discloses a folding structure which comprises two structural units, wherein the two structural units are hinged at a middle shaft, the outer sides of the two structural units are respectively hinged with a rotating rod, the rotating rod is connected with a supporting foot, the middle part of the supporting foot is hinged with one end of a first connecting rod, the other end of the first connecting rod is connected with one end of a second connecting rod in a sliding manner, the other end of the second connecting rod is hinged with a connecting piece, the connecting piece is arranged on the structural units, and the connecting pieces at the two sides of the middle shaft are hinged at the middle part. By arranging the connecting sheet, the second connecting rod is not directly connected with the middle shaft, so that the structure at the middle shaft is smaller in volume, and the thickness after folding is thinner; the strength of the joint structure can be greatly improved by additionally arranging the connecting sheet.

Description

Folding structure

Technical Field

The present invention relates to a folding structure.

Background

The non-foldable structure, such as a table, a chair or a bed, has more inconvenience in storage and transportation, and therefore, the applicant provides a novel folding structure to realize the folding function of products such as tables and chairs.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a folding structure.

The utility model is realized by the following technical scheme:

the utility model provides a folding structure, includes two constitutional units, two constitutional units are articulated in axis department, the outside of two constitutional units all articulates there is a dwang, be connected with the supporting legs on the dwang, the supporting legs middle part is articulated mutually with the one end of first connecting rod, the other end of first connecting rod and the one end sliding connection of second connecting rod, the other end and the connecting piece of second connecting rod are articulated mutually, the connecting piece sets up on constitutional unit, the connecting piece of axis both sides is articulated at the middle part.

In the embodiment of the utility model, the connecting piece comprises a base and a connecting part, the base is fixedly connected with the structural unit, one end of the connecting part is hinged with the second connecting rod, the other end of the connecting part is provided with a convex part, the convex part is provided with a shaft hole, and a rotating shaft is arranged in the shaft hole.

In the embodiment of the utility model, the folding structure is arranged at the joint of the middle parts of the two structural units.

In an embodiment of the present invention, the folding structure includes a pair of pivoting pieces respectively fixed at the folding position of the structural unit, each pivoting piece has a pivoting hole therein, and the two pairs of pivoting pieces are pivoted together by a pivot.

In an embodiment of the present invention, a self-locking mechanism is disposed in the folding structure on at least one side.

In the embodiment of the utility model, the rotating rod at the outer side of the structural unit is connected with two supporting feet, the middle parts of the two supporting feet are connected with a third connecting rod, one end of the first connecting rod is connected with the middle part of the third connecting rod, and the first connecting rod and the second connecting rod are in sliding connection through a sliding sleeve.

In the embodiment of the utility model, the middle part of the supporting foot is provided with an expansion part.

In the embodiment of the utility model, a pull belt is arranged beside the two structural units.

In the embodiment of the utility model, the structural unit comprises a frame body and a panel arranged on the frame body, the panel is provided with a flange extending downwards, and the flange is connected with the frame body inside through a screw.

In the embodiment of the utility model, the panel is provided with the air holes.

The folding structure has the following beneficial effects:

1. by arranging the connecting sheet, the second connecting rod is not directly connected with the middle shaft, so that the structure at the middle shaft is smaller in volume, and the thickness after folding is thinner; the strength of the joint structure can be greatly improved by additionally arranging the connecting sheet.

2. The self-locking mechanism is added in the folding structure, so that the two structure units can be firmly connected when being unfolded, and the folding is convenient and quick.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of the unfolded state of the present invention.

Fig. 2 is a partial schematic view at the connecting piece.

Fig. 3 is a schematic structural view of the folded state of the present invention.

Fig. 4 is an enlarged schematic view at a in fig. 3.

Fig. 5 is a schematic structural view of the folded state of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein.

Referring to the attached drawings of the specification, the utility model provides a folding structure, which comprises two structural units 10 hinged at a middle shaft 11, wherein the outer sides of the two structural units are both hinged with a rotating rod 12, and the rotating rod at one side is connected with two supporting feet 13, so that the two structural units can be folded inwards before the supporting feet are folded. The middle parts of the two supporting legs are connected with a third connecting rod 16, the middle part of the third connecting rod is hinged with one end of a first connecting rod 14, the other end of the first connecting rod is connected with one end of a second connecting rod 15 in a sliding mode, and the other end of the second connecting rod is hinged with the structural unit.

In order to fold the supporting foot better, a connecting piece 20 is arranged on the structural unit, and the other end of the second connecting rod is hinged with the connecting piece. The connecting sheets are arranged at two sides of the middle shaft, and the two connecting sheets are hinged at the middle part. Specifically, the connecting piece includes a base 21 and a connecting portion 22, and an L-shape is formed between the base and the connecting portion. Base and constitutional unit fixed connection, the one end and the second connecting rod of connecting portion are articulated, and the other end of connecting portion is equipped with convex part 23, has seted up shaft hole 231 on the convex part, installs pivot 24 in the shaft hole, and the both ends of pivot all have axostylus axostyle 241, realize both articulations at the middle part through the pivot between two connection pieces, and the pivot is connected epaxially. By arranging the connecting sheet, the second connecting rod is not directly connected with the middle shaft, so that the structure at the middle shaft is smaller in size, and the thickness after folding is thinner. The structural unit is firmer and firmer by adding the connecting sheet, and the connecting sheet can be made of metal materials, so that the strength of the structure of the connecting part is greatly improved.

Further, the first link and the second link are slidably connected by a sliding sleeve 30. One end of the first connecting rod is hinged with the middle part of the third connecting rod. The other end of the first connecting rod is inserted into the opening 31 of the sliding sleeve, and the two sides of the sliding sleeve are respectively connected with the second connecting rod, so that the middle rod is provided with two first shaft seats hinged with the second connecting rod. Further, the second shaft holder may be disposed at a position between the two first shaft holders. Wherein, still be equipped with on the sliding sleeve with first connecting rod complex locking structure. The locking structure includes a mating latch 32, receptacle 33, button 34, etc. The bolt can stretch out and draw back on the first connecting rod, when the folding structure is opened, the bolt enters the sliding sleeve and is gradually retracted into the first connecting rod, and the bolt is ejected out to be matched and locked with the jack when the pressure of the bolt is lost at the jack; when the folding structure is closed, the button is pressed, the convex column under the button enables the bolt to be retracted into the first connecting rod, the first connecting rod is pushed, the bolt is separated from the sliding sleeve, and the folding of the supporting legs is realized.

Furthermore, a folding structure 40 is arranged at the joint of the middle parts of the two structural units. The folding structure comprises a pair of pivoting pieces 41 respectively fixed at the folding position of the structural unit, each pivoting piece is provided with a pivoting hole, and the two pairs of pivoting pieces are pivoted together through a pivot 42.

Furthermore, a self-locking mechanism 50 is disposed in the folding structure on at least one side. Specifically, the self-locking mechanism is arranged between two pairs of pivoted pivoting pieces on one side of the self-locking mechanism, the self-locking mechanism comprises a sliding block 51, and a lock pin driven by the sliding block and a return spring for pulling the sliding block to reset are arranged in an inner cavity of the sliding block. When the desktop is unfolded, the lock pin is clamped in the notches of the two pairs of pivoting pieces after being unfolded, the reset spring is propped against the pivot and is in a tightening state in the inner cavity of the sliding block, so that the two connectors are in a self-locking state, and a certain supporting effect is realized on the connection position. On the contrary, when the desktop is folded, the sliding block is pressed, the lock pin is separated from the clamping action of the notch, the return spring is gradually changed from the original tight state to the loose normal state, the self-locking mechanism weakens the locking action along with the folding movement of the two pairs of pivoting pieces, and the folding is realized after the connection relation between the two pairs of pivoting pieces is reduced. The self-locking mechanism is connected between the two pivoting pieces to realize self-locking between the two pairs of pivoting pieces, so that the two structural units can be firmly connected when being unfolded and can be conveniently and quickly folded.

Further, the structural unit comprises a frame 17 and a panel 18 arranged on the frame, the panel has downwardly extending ribs surrounding the frame, and the ribs and the frame are connected by screws. The folding structure can be made into a folding member such as a folding table, a folding chair or a folding bed. The side of the folding structure is provided with a drawstring 70, so that the folded structure can be easily lifted by the drawstring and is convenient to carry. The middle part of the supporting foot is provided with the expansion part, and the supporting foot with the shape is more stable and firm. Meanwhile, the lower end of the supporting leg is also provided with an anti-slip sleeve 60, so that the supporting leg is not easy to slip when in use.

Furthermore, the material and thickness of the panel can be changed, and the panel can adopt a thin and light-weight plastic-absorption plate, an iron sheet or a wood plate; the back of the panel can be provided with a groove 181, so that the thickness and weight of the panel can be greatly reduced, materials are saved, the strength is ensured, and the cost is reduced. The panel can be provided with air holes 182 which can be round air holes or strip air holes, thus the air holes can ventilate when people sit for a long time or lie for a long time, and the comfort is improved. The frame bodies can be of metal structures, and metal rods are additionally arranged between the frame bodies to increase and ensure the supporting strength of the table top. The folding structure between the two structure units is arranged on the inner side of the flange, so that the folding of the two structure units is ensured, and the outer part is simpler and more beautiful and the flatness is better.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. The utility model provides a folding structure, its characterized in that includes two constitutional units, two constitutional units are articulated in axis department, two constitutional units's the outside all articulates there is a dwang, be connected with the supporting legs on the dwang, the supporting legs middle part is articulated mutually with the one end of first connecting rod, the other end of first connecting rod and the one end sliding connection of second connecting rod, the other end and the connecting piece of second connecting rod are articulated mutually, the connecting piece sets up on constitutional unit, the connecting piece of axis both sides is articulated at the middle part.

2. The folding structure of claim 1, wherein the connecting piece comprises a base and a connecting portion, the base is fixedly connected with the structural unit, one end of the connecting portion is hinged to the second connecting rod, the other end of the connecting portion is provided with a convex portion, the convex portion is provided with a shaft hole, and a rotating shaft is arranged in the shaft hole.

3. A foldable structure according to claim 1, wherein the two structural units are provided with a folding structure at the junction of the central portions.

4. A foldable structure according to claim 3, wherein the foldable structure comprises a pair of pivotal pieces fixed at the folding position of the structural unit, each pivotal piece having a pivotal hole therein, and two pairs of pivotal pieces pivotally connected together by a pivot.

5. A collapsible structure according to claim 3, wherein at least one side of the collapsible structure is provided with a self-locking mechanism.

6. A folding structure according to claim 1, wherein two supporting legs are connected to the rotating rod outside the structural unit, a third connecting rod is connected to the middle of the two supporting legs, one end of the first connecting rod is connected to the middle of the third connecting rod, and the first connecting rod and the second connecting rod are slidably connected through a sliding sleeve.

7. A folding construction according to claim 1, wherein the foot has an expansion in the middle.

8. A folding structure according to claim 1, wherein a drawstring is provided alongside said two structural units.

9. A folding construction according to claim 1, wherein the construction unit comprises a frame and a panel arranged on the frame, the panel having downwardly extending ribs, the ribs being connected to the inner frame by screws.

10. A foldable structure according to claim 9, wherein the panels are provided with ventilation holes.

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