CN216316237U - Folding frame - Google Patents

Abstract

The utility model discloses a folding frame, which comprises a panel and a support frame, wherein the support frame comprises a pin component, a frame component and a connecting component, the frame component is formed by connecting two cross rod components, two longitudinal rod components and a middle rod piece in a frame mode, and the cross rod component is formed by at least mutually hinging two cross rods by using a hinging structure; the pin assembly consists of a plurality of pins, wherein two pins are connected to one of the longitudinal rod assemblies, and a rod piece is connected between the two pins; coupling assembling is connected the member with between the middle member, coupling assembling includes telescopic link and branch, the telescopic link with the member is articulated mutually, branch includes first pin joint pole, second pin joint pole and dead lever, dead lever and panel looks fixed connection, first pin joint pole with second pin joint pole one end with the telescopic link is connected, the other end then with the dead lever is articulated mutually. The folding frame is more stable in connection and high in reliability.

Description

Folding frame

Technical Field

The utility model relates to a folding frame.

Background

The folding portable table is used for saving space and facilitating storage, the structure of the table is changed, the table can be folded and stored, the purpose of reducing space occupation is achieved, the folding portable table occupies small space, is convenient to carry and transport, and is widely applied to modern life. However, the existing folding table structure is uneven in stress and poor in stability, and needs to be improved urgently.

Disclosure of Invention

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

The utility model is realized by the following technical scheme: a folding rack comprises a panel and a supporting frame, wherein the supporting frame comprises a pin assembly, a frame assembly and a connecting assembly, the frame assembly is formed by connecting two cross rod assemblies, two longitudinal rod assemblies and a middle rod piece in a frame mode, and the cross rod assemblies are formed by mutually hinging at least two cross rods by using a hinging structure; the pin assembly consists of a plurality of pins, wherein two pins are connected to one of the longitudinal rod assemblies, and a rod piece is connected between the two pins; coupling assembling is connected the member with between the intermediate member piece, coupling assembling includes telescopic link and branch, the telescopic link with the member is articulated mutually, branch includes first pin joint pole, second pin joint pole and dead lever, dead lever and panel looks fixed connection, first pin joint pole with second pin joint pole one end with the telescopic link is connected, the other end then with the dead lever is articulated mutually, be connected with the pin joint piece on the dead lever, the pin joint piece articulate in on the intermediate member piece.

Preferably, the hinge structure uses a pin to hinge the two cross bars, the middle rod piece is provided with a fixed block, the shaft rod penetrates through the pivot piece and the fixed block to enable the pivot piece to be hinged with the fixed block, and the shaft rod and the pin are coaxially arranged.

Preferably, the telescopic rod is provided with a locking piece, and the telescopic rod realizes relative movement or positioning through the locking piece; the first or second pivot rod is connected with the locking piece.

Preferably, the hinge structure comprises a pin shaft, the connecting ends of the two cross rods are respectively connected with a first switching sheet and a second switching sheet, the first switching sheet or the second switching sheet is provided with a pin hole, and the pin shaft penetrates through the pin hole to be arranged.

Preferably, the first switching piece is provided with a hook, the second switching piece is provided with a track, a positioning rod is arranged in the track and can slide in the track, and the hook can be selectively connected with the positioning rod in a matching manner.

Preferably, the positioning rod comprises a connecting shaft and a connecting block, the connecting block is connected with the connecting shaft, the connecting shaft is arranged in the track, a connecting hole is formed in the connecting block, and a pin shaft of the hinge structure penetrates through the connecting hole.

Preferably, an accommodating portion is formed between the first adaptor sheet and the second adaptor sheet, and the positioning rod is placed in the accommodating portion.

Preferably, the inner side of the cross rod assembly is connected with a positioning column, the outer side of the positioning column is provided with an arc-shaped groove, the arc-shaped groove and the cross rod assembly are oppositely arranged, and the arc-shaped groove can be matched and positioned with the pin assembly.

Preferably, the positioning column further comprises a fastening piece, the fastening piece is connected with the cross rod assembly, and a buffer groove is formed between the fastening piece and the arc-shaped groove.

Preferably, the outer side of the cross rod assembly is further provided with a lifting part, the lifting part comprises a lifting handle and a fixing part, and the lifting handle is connected with the fixing part.

According to the folding frame, the pin shafts of the two cross rod hinge structures and the shaft rods of the connecting components are coaxially arranged, and stress can be uniformly distributed on the frame components, so that the folding frame is more reliable and more stable in connection, and the service life of the folding frame is prolonged.

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 plan view of the present invention.

Fig. 2 is an enlarged schematic view at a in fig. 1.

Fig. 3 is a side view of the present invention.

Fig. 4A is an exploded view of the present invention.

Fig. 4B is an enlarged schematic view at I in fig. 4A.

Fig. 5 is an exploded view at B-B in fig. 1.

Fig. 6 is a perspective view of the stand of the present invention when fully collapsed.

Fig. 7 is an enlarged schematic view at C in fig. 6.

Fig. 8 is a plan view of the stand of the present invention fully collapsed.

Fig. 9 is a schematic cross-sectional view at D-D in fig. 8.

Fig. 10 is an enlarged schematic view at E in fig. 9.

Fig. 11 is a schematic view of the opening process of the stand of the present invention.

Fig. 12 is an enlarged schematic view at F in fig. 11.

Fig. 13 is a schematic view of the process of the utility model when the stand is collapsed.

Fig. 14 is an enlarged schematic view at G in fig. 13.

Fig. 15 is a schematic view of the state of the utility model when opened.

Fig. 16 is an enlarged schematic view at H in fig. 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

Referring to the description of the drawings 1 to 16, a folding leg comprises a panel 1 and a supporting frame 2, the panel 1 is formed by hinging at least two panels with each other, the supporting frame 2 comprises a pin assembly 21, a frame assembly 22 and a connecting assembly 23, the frame assembly 22 is formed by hinging two cross bar assemblies 2a, two longitudinal bar assemblies 2b and a middle bar member 2c, wherein the cross bar assembly 2a is formed by hinging at least two cross bars 21a with each other by a hinge structure p1, the hinge structure p1 has a pin p11, the pin p11 hinges the two cross bars 21a with each other, furthermore, the hinge structure p1 is connected with the middle bar member 2c at the middle bar member 2c, the longitudinal bar assembly 2b connects the two cross bar assemblies 2a arranged oppositely, and the middle bar member 2c is connected between the middle portions of the two cross bars arranged oppositely to form the frame assembly 22; preferably, the longitudinal rod assembly 2b is placed in the positioning body k1, the positioning body k1 is fixedly connected to the panel 1, and the longitudinal rod assembly 2b is placed in the slot of the positioning body k1, so that the longitudinal rod assembly can rotate in the slot, and the rotation reliability of the folding leg is ensured. The pin assembly 21 is composed of a plurality of, for example, four pins 22a, wherein two pins 22a are connected to one of the vertical rod assemblies 2b, a first rod member a1 is connected between the two pins 22a, the other two pins 22a are connected to the other vertical rod assembly 2b, and a second rod member a2 is connected between the other two pins 22 a.

The connecting assembly 23 includes a telescopic rod 23a and a supporting rod 23b, one end of the telescopic rod 23a is hinged to the first rod piece a1, in addition, a locking piece c3 is arranged on the telescopic rod 23a, the telescopic rod 23a realizes relative movement or positioning through the locking piece c3, for example, an elastic buckle is arranged in the telescopic rod 23a, the elastic buckle has a convex point c1, the convex point is arranged to protrude to the outer side of the telescopic rod, and the locking piece can be connected or disconnected with the convex point in a matching manner so as to realize the positioning or relative telescopic movement of the telescopic rod; the supporting rod 23b comprises a first pivoting rod f1, a second pivoting rod f2 and a fixing rod f3, the first pivoting rod f1 is connected with the locking piece c3 at one end and is hinged with the fixing rod f3 at the other end, similarly, the second pivoting rod f2 is connected with the locking piece c3 at one end and is hinged with the fixing rod f3 at the other end, the fixing rod f3 fixedly connects the fixing rod f3 to the panel 1 by a fastener f4, for example, a connecting piece f5 is arranged at the tail end of the fixing rod f3, a pivoting rod f6 sequentially passes through a through hole at the tail end of the first or second pivoting rod f1 or f2 and a pivoting hole at the connecting piece f5 to hinge the first or second pivoting rod to the fixing rod, furthermore, a pivoting piece f31 is connected at the middle part of the fixing rod f3, the pivoting piece f31 is connected with a fixing block 21c positioned on the middle rod 2c, namely, the fixing block 21c is pivotally connected with the middle rod 2c, the shaft lever 22c passes through the pivoting piece f31 and the fixed block 21c to make the pivoting piece pivoted with the fixed block, namely the shaft lever 22c passes through the pivoting piece of the first or second pivoting rod and the fixed block to make the pivoting piece f31 rotate around the fixed block 21c, the shaft lever 22c and the pin shaft p11 of the hinge structure are coaxially arranged and coaxially rotate, thus, as the fixed rod is fixedly connected to the panel 1, the force borne by the panel is concentrated.

Further, in an embodiment, the hinge structure p1 includes a pin p11, the connecting ends of the two cross bars 21a are respectively connected with a first switching sheet s1 and a second switching sheet s2, a receiving portion s3 is formed in the middle of the first and second switching sheets s1 and s2, a pin hole is formed in the first or second switching sheet s1 or s2, the pin p11 sequentially passes through the pin holes to hinge the two switching sheets, and the pin p11 is disposed coaxially with the shaft 22 c; in addition, the first switching piece s1 located outside the frame assembly is provided with a hook s11, the hook s11 can be matched with the positioning rod to realize the stable connection of the two cross rods or release the stable connection of the two cross rods, the second switching piece s2 located outside the frame assembly is further provided with a track s21, the track s21 is arranged at the lower end of the pin shaft p11, the positioning rod s4 is arranged in the track s21, the positioning rod s4 is arranged in the accommodating part s3, and the positioning rod s4 can move along the track s11 under the action of self gravity. Specifically, referring to fig. 7 to 10, the positioning rod s4 includes a connecting shaft s41 and a connecting block s42 connected to the connecting shaft s41, preferably, the connecting shaft is symmetrical with respect to two sides of the connecting block, the connecting shaft s41 is disposed in the track s21, the connecting shaft s41 can move up and down in the track s21, a connecting hole s43 is disposed in the middle of the connecting block s42, the pin p11 passes through the connecting hole s43, and the connecting block s42 can slide up and down within a certain range by using the connection between the connecting hole s43 and the pin p 11. When the user uses the folding leg (i.e. the panel is on the top at this time, and the support frame is unfolded on the floor surface), i.e. the folding leg is in a fully opened state, at this time, the positioning rod s4 slides downwards (i.e. along the floor direction) along the rail s21 under the action of gravity until falling into the hook s11, so that the connection between the first switching piece s1 and the second switching piece s2 is further stabilized, the stability and the stationarity of the folding leg are ensured, and the connection of the folding leg is more reliable; when the user needs to fold the folding leg, the user turns over the folding leg to fold each component, at this time, the positioning rod s4 falls down from the original position of the rail s21, at this time, the connection between the positioning rod s4 and the hook s11 is released, and the first connecting piece s1 and the second connecting piece s2 rotate to each other to fold the folding leg until the folding leg is folded.

In a preferred embodiment, the inner side of the cross bar assembly 2a is further connected with a positioning post k2, the positioning post k2 can be connected to the inner side of the cross bar assembly 2a by using, for example, a bolt k21, the positioning post k2 has a certain elasticity, and the outer side of the positioning post k2 is provided with an arc-shaped groove k22, when the pin 22a is folded to the frame assembly 22, the pin 22a can fall into the arc-shaped groove k22 to be matched and fixed with the same, so that the pin 22a can be positioned and folded in the frame assembly 22; in addition, referring to fig. 11 to 15, the positioning post k2 may include a fastening tab k20, an arc-shaped slot k22 and a buffer slot k23 located between the fastening tab k20 and the arc-shaped slot k22, the fastening tab k20 is connected to the inner side of the cross bar assembly 2a by a bolt k21, the arc-shaped slot k22 is located at the outer side of the positioning post k2, when the pin 22a contacts the arc-shaped slot k22, due to the existence of the buffer slot k22, the arc-shaped slot k22 can move towards the buffer slot k22 under the action of the pin 22a until the pin 22a is matched and positioned with the arc-shaped slot k 22; preferably, the positioning post k2 is a plastic piece. Of course, the number of the positioning posts k2 is not limited to one, and the positioning posts k2 can be arranged inside the crossbar assembly as long as the positioning of the folded pins can be realized. Through being provided with the reference column in horizontal pole subassembly inboard to the arc wall that utilizes this reference column outside cooperatees with the pin, and then when the folding leg was folded up, the arc wall can keep the pin in the state of folding up, guarantees the form of folding up of folding leg, promotes user's use and experiences.

In addition, referring to fig. 15 and 16, a lifting portion 2d may be disposed at an outer side of the crossbar assembly 2a, an accommodating groove q is disposed at one side of the panel 1, the lifting portion 2d includes a lifting handle 21d and a fixing member 22d, one end of the fixing member 22d is connected to the crossbar assembly 2a, and the other end is disposed in the accommodating groove q and connected to the lifting handle 21 d; both ends of the handle 21d may be fixed to the fixing member 2d or may be slidably connected within a certain range.

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. A folding leg is characterized by comprising a panel and a support frame, wherein the support frame comprises a pin assembly, a frame assembly and a connecting assembly, the frame assembly is formed by connecting two cross rod assemblies, two longitudinal rod assemblies and a middle rod piece in a frame mode, and the cross rod assemblies are formed by at least hinging two cross rods with each other by using a hinging structure; the pin assembly consists of a plurality of pins, wherein two pins are connected to one of the longitudinal rod assemblies, and a rod piece is connected between the two pins; coupling assembling is connected the member with between the intermediate member piece, coupling assembling includes telescopic link and branch, the telescopic link with the member is articulated mutually, branch includes first pin joint pole, second pin joint pole and dead lever, dead lever and panel looks fixed connection, first pin joint pole with second pin joint pole one end with the telescopic link is connected, the other end then with the dead lever is articulated mutually, be connected with the pin joint piece on the dead lever, the pin joint piece articulate in on the intermediate member piece.

2. The folding leg as claimed in claim 1, wherein the hinge structure is formed by hinging two cross bars with each other by a pin, the middle bar is provided with a fixed block, the shaft passes through the pivoting piece and the fixed block to hinge the pivoting piece and the fixed block, and the shaft is coaxial with the pin.

3. The folding leg as claimed in claim 1, wherein the telescopic rod is provided with a locking piece, and the telescopic rod is relatively moved or positioned through the locking piece; the first or second pivot rod is connected with the locking piece.

4. The folding rack according to claim 1, wherein the hinge structure comprises a pin shaft, the connecting ends of the two cross bars are respectively connected with a first adapter sheet and a second adapter sheet, the first or second adapter sheet is provided with a pin hole, and the pin shaft penetrates through the pin hole.

5. The folding leg as claimed in claim 4, wherein the first connecting piece is provided with a hook, the second connecting piece is provided with a track, a positioning rod is arranged in the track and can slide in the track, and the hook can be selectively connected with the positioning rod in a matching manner.

6. The folding leg as claimed in claim 5, wherein the positioning rod comprises a connecting shaft and a connecting block, the connecting block is connected with the connecting shaft, the connecting shaft is disposed in the track, the connecting block is provided with a connecting hole, and a pin of the hinge structure is disposed through the connecting hole.

7. The folding leg of claim 5, wherein a receiving portion is formed between the first and second adapter pieces, and the positioning rod is placed in the receiving portion.

8. The folding leg as claimed in claim 1, wherein the cross bar assembly has a positioning post connected to an inner side thereof, the positioning post has an arc-shaped slot on an outer side thereof, the arc-shaped slot is disposed opposite to the cross bar assembly, and the arc-shaped slot is capable of being matched with the pin assembly for positioning.

9. The folding leg as claimed in claim 8, wherein the positioning post further comprises a fastening plate, the fastening plate is connected to the cross bar assembly, and a buffer slot is formed between the fastening plate and the arc-shaped slot.

10. The folding leg as claimed in claim 1, wherein a lifting portion is further disposed at an outer side of the cross bar assembly, the lifting portion includes a lifting handle and a fixing member, and the lifting handle is connected to the fixing member.

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