Folding mechanism and table and chair applying same

Abstract

The utility model discloses a folding mechanism and a desk and a chair applying the folding mechanism, which comprise a support seat and a support rod group, the support rod group comprises an upper support rod and a lower support rod, one end of the upper support rod can be hinged with the support seat, and the middle part of the lower support rod can be hinged with the support seat or the upper support rod; when the folding mechanism is unfolded, the upper end of the lower supporting rod can abut against the supporting seat, the lower end of the upper supporting rod can abut against the upper end of the lower supporting rod, the table and the chair comprise the folding mechanism, and after the folding mechanism is folded, the folding mechanism is small in overall occupied space and convenient to store, carry and transport.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of folding mechanism and the table, chair of application of this folding mechanism. BACKGROUND

[0002] In recent years, outdoor activities have been more and more people like, weekend, holiday, can be with family, someone goes to the place of outdoor camping, can well enjoy the time of holiday. When we go outdoor activities now, carry some foldable chair and table, when unfolding, can be normally used, when not using, can be folded, reduce the space occupied, whether sales or camping, it is convenient to carry and store. But in the existing folding mechanism, the rod is connected by pin to realize the rotation of two rods, can refer to the folding table structure disclosed in Chinese patent No. 202221286602.4, which includes upper and lower support rods, and the corresponding upper and lower support rods are hinged together. When folding, because the upper and lower support rods are directly hinged with the two supports, the rotation direction of the upper and lower support rods is opposite when shrinking, because the effective length L (the distance from the hinge point to the end) of the support rod needs to be guaranteed to form a table and chair, so that the overlapping part of the two support rods is less after shrinking, and the overall length is too long after folding, which is basically the sum of the effective lengths of the two support rods, and occupies a very long space, which is not conducive to overall storage, carrying and transportation. At the same time, relative movement between the two supports is also needed, and connecting rods are needed between the two supports, which increases the production steps and the use of parts, and the two supports are also prone to shaking, and the structural stability is poor. Moreover, the supporting abutting portion of the present folding mechanism is located at the outer periphery of the hinge point of the support rod and the base, so that the abutting area for supporting is small, which requires the base to have high strength and be made of metal, which not only increases the overall weight, but also increases the production cost of the product. SUMMARY

[0003] To solve the above technical problems, the purpose of the utility model is to provide a kind of folding mechanism and the table, chair of application of this folding mechanism.

[0004] The utility model realizes the following technical solutions:

[0005] A folding mechanism includes a support seat and a support rod group, the support rod group includes an upper support rod and a lower support rod, one end of the upper support rod can be hinged with the support seat, and the middle part of the lower support rod can be hinged with the support seat or the upper support rod; when the folding mechanism is unfolded: the upper end of the lower support rod can abut on the support seat, and the lower end of the upper support rod can abut on the upper end of the lower support rod.

[0006] The upper support rod and the lower support rod can rotate towards the same direction relative to the support base when the folding mechanism is unfolded or folded.

[0007] In the embodiment of the utility model, the connecting part of the upper support rod and the support base and the connecting part of the lower support rod and the support base are located at the same position of the support base.

[0008] In the embodiment of the utility model, a slot is arranged on the support base, the upper end of the lower support rod can be placed in the slot, and the upper end of the lower support rod can abut on the bottom surface of the slot.

[0009] In the embodiment of the utility model, a supporting surface is arranged on the support base beside the slot, the upper support rod is in the shape of an elbow, and the first section at the lower end of the upper support rod can abut on the supporting surface.

[0010] In the embodiment of the utility model, the upper support rod comprises a straight rod and an L-shaped connecting piece, the upper part of the connecting piece is connected to the two sides of one end of the straight rod, the lower part of the connecting piece forms the first section of the upper support rod, and the lower part of the connecting piece can be hingedly connected to the support base and the lower support rod.

[0011] In the embodiment of the utility model, the upper end of the lower support rod is provided with an abutting piece which can be placed in the slot, and the upper end of the lower support rod can be located between the two connecting pieces; when the folding mechanism is unfolded, the lower end of the straight rod can be pressed above the abutting piece.

[0012] In the embodiment of the utility model, the upper support rod and / or the lower support rod is a telescopic rod.

[0013] The utility model further discloses:

[0014] A table comprising the folding mechanism.

[0015] The utility model further discloses:

[0016] A chair comprising the folding mechanism.

[0017] The utility model discloses a folding mechanism and table, chair of application of this folding mechanism have following beneficial effect: completely changed the existing folding mode, makes two support rods when folding or unfolding rotate to one direction, makes two support rods coincident part become more, effectively reduces the size of height and width of folding mechanism after folding, can reduce the space occupied after folding in this way, can increase the number of storage and transportation under the condition of same volume, improves the effect of enterprise, when consumer uses, can reduce the space required for storage, facilitates carrying and storage, and simultaneously facilitates carrying, no longer needs to use two support seats, can use one support seat only, strengthens the stability of overall structure, because with two support rods in a hinged point, support seat does not need to be very thick, simultaneously reduces the cost, and simultaneously the abutting of support uses the inner circle of hinging, can increase the area of abutting surface like this, reduces the strength requirement of support seat material, can adopt plastic piece, reduces weight and can reduce cost simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the utility model, below will to the embodiment or prior art description needed to use the drawing of simple introduction, obviously, below description's drawing only some embodiments of the utility model, for the ordinary skill in the art person comes to, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is the schematic diagram when folding mechanism of the utility model folds.

[0020] Figure 2 It is the perspective view when folding mechanism of the utility model unfolds.

[0021] Figure 3 It is the sectional view when folding mechanism of the utility model unfolds Figure 1 .

[0022] Figure 4 It is the sectional view when folding mechanism of the utility model unfolds Figure 2 .

[0023] Figure 5 It is the schematic diagram of support seat of the utility model.

[0024] Figure 6 It is the schematic diagram of upper support rod of the utility model.

[0025] Figure 7 It is the schematic diagram of lower support rod of the utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only to represent selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In the present utility model, unless otherwise expressly provided and limited, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "on top of" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0031] With reference to the drawings, a folding mechanism includes a support base 10 and a support rod set, the support rod set includes an upper support rod 20 and a lower support rod 30, in use, the support base is provided with at least three sets of support rod sets, which are hinged on the outer circumferential side of the support base; one end of the upper support rod can be hinged with the support base, and the middle part of the lower support rod can be hinged with the support base or the upper support rod; when the folding mechanism is unfolded: the upper end of the lower support rod can abut on the support base, and the lower end of the upper support rod can abut on the upper end of the lower support rod. The connection between the upper support rod and the support base and the connection between the lower support rod and the support base are located at the same position of the support base, which can be the same hinge point A, in an embodiment, the support base and the upper support rod and the lower support rod are connected through a pin shaft, realizing the relative rotation of the three components at the same joint; that is to say: when the folding mechanism is unfolded or folded, the upper support rod and the lower support rod can rotate in the same direction relative to the support base. When the folding mechanism is unfolded from the folded state, most of the upper support rod and the lower support rod coincide below the support rod, and the upper support rod is located outside the lower support rod, so that the two support rods are synchronously turned upward until: the lower support rod is abut on the support base, so that the lower support rod cannot be turned upward again, and the upper support rod continues to turn upward, so that the lower end thereof can abut on the upper side of the lower support rod, so that the upper and lower ends of the lower support rod are abutted and cannot be turned again. As long as the upper support rod does not turn, the unfolded state of the folding mechanism can be maintained. When the folding mechanism is used, the distance between each upper support rod cannot be changed, that is, the upper support rod cannot be turned, so that the unfolded state is maintained.

[0032] Preferably, the support base is provided with a slot 11, the upper end of the lower support rod is arranged in the slot, and the upper end of the lower support rod is abutted on the bottom surface of the slot, so that the lower support rod cannot rotate upward. The support base beside the slot is provided with an abutment surface 12, and the upper support rod is in the shape of an elbow, and the first section 21 at the lower end of the upper support rod is abutable on the abutment surface. The upper support rod comprises a straight rod 22 and an L-shaped connecting piece 23, the two sides of one end of the straight rod are connected with the upper part of the connecting piece to form a gap, the lower part of the connecting piece forms the first section of the upper support rod, and the end of the lower part of the connecting piece is hingedly connected with the support base and the lower support rod. In other words, the upper end of the upper support rod can be used for hanging a canvas or connecting a table board, and the lower end of the upper support rod is hingedly connected with the support base.

[0033] Further, the upper end of the lower support rod is provided with an abutment piece 31 arranged in the slot, and the upper end of the lower support rod is located between the two connecting pieces, so that the folding can be stacked when being folded; when the folding mechanism is unfolded, the lower end of the straight rod is arranged above the abutment piece, a groove 24 capable of being matched with the abutment piece is formed at one end, the lower end of the abutment piece is in contact with the bottom surface of the slot to form support.

[0034] Still further, the upper support rod and / or the lower support rod are telescopic rods, so that the size is reduced after being folded.

[0035] In the utility model, the hinge points of the two support rods and the support base are located at the outer periphery of the support base, and the support positions of the two support rods are located at the inner periphery of the hinge point A, so that the area of the support position is increased, and the strength requirement of the support base is relatively small.

[0036] Compared with the prior art, the rotating directions of the two support rods are opposite, so that the two support rods can be overlapped after being folded; in order to better carry, the two support rods are telescopic rods, and the lower end of the lower support rod is provided with an antiskid pad 32.

[0037] The utility model discloses a folding mechanism of a table, which comprises a support base, a lower support rod and an upper support rod.

[0038] The utility model discloses a table, which comprises the folding mechanism.

[0039] The utility model discloses a table, which comprises the folding mechanism.

[0040] A chair comprising the folding mechanism as described above, wherein two upper support rods are short rods, two upper support rods are long rods, and a canvas (not shown in the drawings) is connected between the four upper support rods to form a chair with a backrest, or all four support rods are short rods, and a canvas or a seat plate (not shown in the drawings) is connected between the upper support rods to form a chair without a backrest.

[0041] The above description shows and describes the preferred embodiments of the present application. As mentioned previously, it is to be understood that the application is not to be limited to the precise details of construction and the arrangement of the components set forth herein, and that various other changes and modifications can be affected therein by those skilled in the art without departing from the scope of the application as defined in the appended claims, and in the scope of the application as described in the foregoing disclosure.

Claims

1. A folding mechanism comprising a support base and a support bar set, the support bar set comprising an upper support bar and a lower support bar, characterized in that, One end of the upper support rod is hingedly connected to the support base, and the middle of the lower support rod is hingedly connected to the support base or the upper support rod; when the folding mechanism is unfolded, the upper end of the lower support rod abuts against the support base, and the lower end of the upper support rod abuts against the upper end of the lower support rod.

2. A folding mechanism according to claim 1, wherein When the folding mechanism is unfolded or folded, the upper support rod and the lower support rod rotate in the same direction relative to the support base.

3. A folding mechanism according to claim 2, wherein The connection between the upper support rod and the support base and the connection between the lower support rod and the support base are located at the same position of the support base.

4. A folding mechanism according to any one of claims 1 to 3, wherein The support base is provided with a slot, and the upper end of the lower support rod is arranged in the slot, and the upper end of the lower support rod abuts against the bottom surface of the slot.

5. A folding mechanism according to claim 4, wherein The support base is provided with an abutting surface beside the slot, and the upper support rod is bent, and the first section of the lower end of the upper support rod abuts against the abutting surface.

6. A folding mechanism according to claim 5, wherein The upper support rod comprises a straight rod and an L-shaped connecting piece, the two sides of one end of the straight rod are connected to the upper part of the connecting piece, the lower part of the connecting piece forms the first section of the upper support rod, and the end of the lower part of the connecting piece is hingedly connected to the support base or the lower support rod.

7. A folding mechanism according to claim 6, wherein The upper end of the lower support rod is provided with an abutting piece arranged in the slot, and the upper end of the lower support rod is located between the two connecting pieces; when the folding mechanism is unfolded, the lower end of the straight rod is pressed above the abutting piece.

8. A folding mechanism according to claim 7, wherein The upper support rod and / or the lower support rod are telescopic rods.

9. A table, characterized in that The folding mechanism comprises any one of the folding mechanisms according to claims 1-8.

10. A chair, characterized in that The folding mechanism comprises any one of the folding mechanisms according to claims 1-8.

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