CN210433032U

CN210433032U - Double-layer folding table

Info

Publication number: CN210433032U
Application number: CN201920890690.0U
Authority: CN
Inventors: 钱炳方
Original assignee: HUZHOU FOUR FRIENDS ARTICLES FOR TOURISM USE CO Ltd
Current assignee: HUZHOU FOUR FRIENDS ARTICLES FOR TOURISM USE CO Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-05-01
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a double-layer folding table, which belongs to the field of folding tables, the utility model comprises a first folding table top, a second folding table top and a folding frame, the folding frame comprises a left foot rest and a right foot rest which are hinged in a crossed way, a first mounting tube and a second mounting tube which are used for fixing the first folding table top are arranged at the upper ends of the left foot rest and the right foot rest, a first folding support bar and a second folding support bar are hinged between the first mounting tube and the second mounting tube, a sliding locking connecting piece is hinged between the left foot rest and the first folding support bar and between the right foot rest and the first folding support bar, a first horizontal fixing tube which is used for fixing the second folding table top is arranged on the left foot rest, a second horizontal fixing tube which is used for fixing the second folding table top is arranged on the right foot rest, the folding and the folding table top can be conveniently folded and unfolded, the overall stability of the folding frame is high when the folding table top is, the bearing capacity of the table top is improved.

Description

Double-layer folding table

[ technical field ] A method for producing a semiconductor device

The utility model relates to a folding table technical field, in particular to double-deck folding table.

[ background of the invention ]

Along with the improvement of people's standard of living day, the chance of going out outing and tourism is also more and more, and folding table has become one of the indispensable personal article in the playing process because of its practicality characteristics such as strong, accomodate simply, take up an area of fewly, conveniently carry, but current folding table generally comprises collapsible table frame and the soft tablecloth of topmost one deck, and the placing object article is few, the usage is single, and poor stability can not place heavier article, collapses easily.

In the chinese invention patent with application number 201710409466.0, a double-layer folding table is disclosed, comprising a left cross tube (1), a right cross tube (2) and a foot frame (3) for supporting, wherein a first layer of tablecloth (4) is arranged on the left cross tube (1) and the right cross tube (2), and a sliding part (5) for connecting the left cross tube (1) or the right cross tube (2) is arranged on the foot frame (3); the foot frames (3) comprise foot frames (31) with holes and foot frames (32) without holes, and locking devices (6) used for limiting the opening and closing angles of the left cross pipes (1) and the right cross pipes (2) are arranged on sliding parts (5) on the foot frames (32) with holes; a first connecting pipe (7) is arranged on the left cross pipe (1), and a second connecting pipe (8) is arranged on the right cross pipe (2); a second layer of tablecloth (9) is arranged on the first connecting pipe (7) and the second connecting pipe (8), a groove (51) passing through a rotating track of the locking device (6) is formed in a sliding part (5) on the foot frame (32) with the hole, and the locking device (6) comprises a driving block (61) movably connected with the groove (51) through a positioning pin, a spring (62) connected to one side of the driving block (61) and a locking block (63) connected to the other side of the driving block (61); the locking block (63) is matched with a hole (311) on the foot frame (31) with the hole so as to fix the relative position of the sliding part (5) and the foot frame (31) with the hole, the double-layer folding bag realizes double-layer folding function through the arrangement of the sliding part and the first connecting pipe and the second connecting pipe which are connected with the sliding part, meanwhile, the arrangement of the locking device can lock the opening angle of the folding table, improve the stability of the whole folding table, however, the locking device of the folding table is complex in structure and inconvenient to operate and maintain, and only one side of the foot frame is provided with the locking device, so that when the folding table is touched by accident, the locking block (63) is easy to be separated from the hole (311), so that the stability of the whole folding table is reduced, meanwhile, the first layer of tablecloth and the second layer of tabletop are only fixed on the left side and the right side, the front side and the rear side are not fixed, the supporting performance is poor, and articles easily slide from the front side and the rear side of the tablecloth.

[ summary of the invention ]

The utility model aims to solve the technical problem that make folding and opening of double-deck folding table more convenient, the overall stability of folding leg when improving double-deck folding table open mode with to desktop supporting effect, promote the bearing capacity of desktop.

Solve above-mentioned technical problem, utility model adopts following technical scheme:

a double-layer folding table comprises a first folding table top arranged on an upper layer, a second folding table top arranged on a lower layer and a folding frame driving the first folding table top and the second folding table top to unfold or fold, wherein the folding frame comprises a left foot frame and a right foot frame which are hinged in a crossed manner, the left foot frame comprises a left foot frame front frame and a left foot frame rear frame, the right foot frame comprises a right foot frame front frame and a right foot frame rear frame, a first mounting tube for fixing the left end of the first folding table top is arranged at the upper end of the left foot frame, a second mounting tube for fixing the right end of the first folding table top is arranged at the upper end of the right foot frame, a first folding support rod is hinged between the front end of the first mounting tube and the front end of the second mounting tube, a second folding support rod is hinged between the upper portion of the left foot frame front frame and the left side of the first folding support rod, a second folding support rod is hinged between the upper portion of the right foot frame front frame, Sliding locking connecting pieces are hinged between the upper portion of the rear frame of the left foot stand and the left side of the second folding supporting rod and between the upper portion of the rear frame of the right foot stand and the right side of the second folding supporting rod, a first horizontal fixing tube for fixing the left end of the second folding desktop is arranged below the first mounting tube of the left foot stand, and a second horizontal fixing tube for fixing the right end of the second folding desktop is arranged below the second mounting tube of the right foot stand.

Adopt utility model's beneficial effect:

by adopting the double-layer folding table top structure, the first folding table top and the second folding table top can be opened for use, the using function and the range of the folding table are enlarged, when the folding table is in an opening state, the first installation tube and the second installation tube fix the left side and the right side of the first layer of folding table top, the first folding support rod and the second folding support rod are unfolded and extended to support the front side and the rear side of the first folding table top, compared with the prior art that only the left side and the right side of the first layer of folding table cloth are fixed in the double-layer folding table, the periphery of the first folding table top is supported, the supporting effect is good, articles are not easy to slide off, when articles are placed on the first table top, the force borne by the folding table top is dispersed to the first mounting tube, the second mounting tube, the first folding support rod and the second folding support rod, so that the force is transmitted to the whole folding frame, and the bearing capacity of the first folding table top is improved; the sliding locking connecting pieces are positioned at the four corners of the folding frame, when the folding table is in an opening state, the sliding locking connecting pieces are all opened and are in a locking state and are supported between the foot rest and the folding supporting rod, so that relative sliding is not easy to occur, the stability of the folding frame is improved, even if one to three sliding locking connecting pieces are in a non-locking state, other sliding locking connecting pieces can still ensure that the folding table is in an opening stable state, the probability of the condition that the four sliding locking connecting pieces are all in an unlocking state is low, the sudden folding condition can not occur in the normal opening use process, and the safety performance of the folding frame in use is improved; when the foldable table is used up for storage, the sliding locking connecting piece is opened to enable the foldable table to be in a non-locking slidable state, the first folding supporting rod and the second folding supporting rod are folded, so that the whole foldable frame and the foldable table top are folded, the folding of the whole double-layer foldable table is completed, and the foldable table is very convenient to open and fold.

Preferably, the sliding locking connecting piece is provided with sliding grooves distributed along the length direction of the sliding locking connecting piece, the side of the bottom end of each sliding groove is provided with a locking groove connected with the sliding groove, the upper parts of the front frame and the rear frame of the left foot rest are provided with buckles sliding in the sliding grooves, the upper parts of the front frame and the rear frame of the right foot rest are provided with buckles sliding in the sliding grooves, and when the double-layer folding table is in an open state, the buckles are clamped into the locking grooves to be locked.

Adopt above-mentioned structure, when needs open double-deck folding table, open articulated left foot rest and right foot rest, make the buckle slide down along the spout, slide to when bottommost, the card is gone into the locking groove of side and is realized the locking, angle when can controlling folding table and opening through the locking groove simultaneously, improve the stability of whole folding table, when needs are accomodate, get back to the spout upwards sliding again with the buckle from locking groove roll-off, make first folding bracing piece and second folding bracing piece fold at will, accomplish and accomodate, compare in sliding part and locking device in the double-deck folding table of prior art, spout and locking groove in this scheme are simple structure, and convenient operation, and is with low costs, easily processing and maintenance, locking support effect is good.

Preferably, a reinforcing plate perpendicular to the slide lock connector is provided on a side edge of the slide lock connector in the longitudinal direction, so that the strength of the slide lock connector is increased and the slide lock connector is prevented from being bent or broken during handling or supporting.

As preferred, be equipped with elastic bulge in the spout with the junction of locking groove, elastic bulge has limiting displacement, when making the buckle card go into locking groove locking, is difficult to the roll-off when non-manpower operation, and locking effect is good.

As preferred, the left foot rest is U type left foot frame, the both ends of the fixed pipe of first level are fixed on the preceding frame and the back frame of U type left foot frame, the right foot rest is U type right foot frame, the both ends of the fixed pipe of second level are fixed respectively on the preceding frame and the back frame of U type right foot frame, and the fixed pipe of first level and the fixed pipe of second level at fixed second folding desktop both ends are directly established at U type left foot frame and U type right foot frame, can accomplish along with the rotation of the relative position of two foot frames and open and accomodate, and processing is simple, convenient operation.

Preferably, the left foot stand comprises a U-shaped left foot frame, a first vertical telescopic pipe hinged to the upper part of a front frame of the U-shaped left foot frame and a second vertical telescopic pipe hinged to the upper part of a rear frame of the U-shaped left foot frame, and two ends of the first horizontal fixing pipe are respectively fixed on the first vertical telescopic pipe and the second vertical telescopic pipe; the right foot frame comprises a U-shaped right foot frame, a third vertical telescopic pipe hinged on the upper part of a front frame of the U-shaped right foot frame and a fourth vertical telescopic pipe hinged on the upper part of a rear frame of the U-shaped right foot frame, two ends of a second horizontal fixed pipe are respectively fixed on the third vertical telescopic pipe and the fourth vertical telescopic pipe, the lower end of the first vertical telescopic pipe is hinged with the lower part of the front frame of the U-shaped right foot frame, the lower end of the second vertical telescopic pipe is hinged with the lower part of a rear frame of the U-shaped right foot frame, the lower end of the third vertical telescopic pipe is hinged with the lower part of the front frame of the U-shaped left foot frame, and the lower end of the fourth vertical telescopic pipe is hinged with the lower, the first vertical telescopic pipe, the second vertical telescopic pipe, the third vertical telescopic pipe and the fourth vertical telescopic pipe all comprise outer pipes provided with blind holes and inner pipes sliding up and down in the blind holes, and when the double-layer folding table is in an open state, the lower ends of the inner pipes are in interference contact with the lower walls of the blind holes.

When needing to open double-deck folding table, U type left foot frame and U type right foot frame are opened relatively, compress first vertical flexible pipe downwards, the vertical flexible pipe of second, the vertical flexible pipe of third and the vertical flexible pipe of fourth, when opening completely, the inner tube lower extreme and the blind hole lower wall interference contact of four flexible pipes, become the bracing piece, when making double-deck folding table be in the open mode, stability obtains further improvement, and simultaneously, the fixed pipe of first level and the fixed pipe of second level at fixed second folding desktop both ends can be adjusted from top to bottom on vertical telescopic link, it is more convenient to adjust the position of second folding desktop according to the in-service use demand.

As the preferred, be equipped with the locking buckle of knot on another foot frame on U type left foot frame or U type right foot frame, during accomodating, use locking buckle to detain two foot frames, fixed effectual makes it be difficult for scattering or make a round trip to rock, conveniently accomodates and gets to take, avoids bumping people or article around.

As preferred, first folding bracing piece articulates between left branch vaulting pole and right branch vaulting pole including being located left branch vaulting pole and being located the right branch vaulting pole on right side, has the triangular connection spare, all is equipped with horizontal holding surface above left branch vaulting pole, right branch vaulting pole and folding connection spare, second folding bracing piece articulates between left branch vaulting pole and the right branch vaulting pole including being located left branch vaulting pole and being located the right side has the triangular connection spare, all is equipped with horizontal holding surface above left branch vaulting pole and right branch vaulting pole.

On a left side, the right branch vaulting pole articulates respectively on two bottoms of triangle connecting piece, make a left side, there is the convenient rotation of certain distance between the right branch vaulting pole, folding bracing piece is in when straightening the state, the stability of triangle connecting piece is high, can not rock, the stability of first folding bracing piece and the second folding bracing piece has been improved, make it have better supporting role to first folding desktop, horizontal support face has increased the area of contact of desktop with the bracing piece, make the desktop keep leveling, play the effect of strengthening the face simultaneously, the mechanical strength of first folding bracing piece and the second folding bracing piece has been increased, make its resistance to compression, the anti deformability is stronger.

As preferred, be equipped with the logical groove of C type respectively on first installation pipe and second installation pipe, the left and right both ends of first folding desktop are equipped with the fixed mounting post, the fixed mounting post card is gone into the logical groove of C type, and when the first folding desktop of installation and change, need not dismantle the folding leg, easy dismounting improves efficiency.

As preferred, be equipped with vertical air spring between left foot rest front frame and the right foot rest front frame, be equipped with vertical air spring between left foot rest rear frame and the right foot rest rear frame, air spring velocity of motion is slow relatively, dynamic force changes little, easy control, it is all more slow steady to make opening and packing up of folding leg, the security performance has been improved, when the folding table is in the state of opening, the air spring is in compression state, get at the desktop and place article, when making the weight on the desktop change, the air spring has the cushioning effect, reduce the damage of part junction.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The utility model is further described with the following drawings:

fig. 1 is a schematic view of a three-dimensional structure of a double-layer folding table according to an embodiment of the present invention.

Fig. 2 is a schematic view of a three-dimensional structure of a folding frame according to an embodiment of the present invention.

Fig. 3 is a front view of the utility model folding frame.

Fig. 4 is a schematic perspective view of the slide lock connector of the utility model.

Fig. 5 is a schematic view of another perspective structure of the slide lock connector of the present invention.

Fig. 6 is a schematic view of a three-dimensional structure of the folding support rod of the utility model.

Fig. 7 is a schematic view of a three-dimensional structure of a folding frame according to an embodiment of the present invention.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without creative efforts, and all of them belong to the protection scope of the utility model.

In the following description, the terms such as "inner", "outer", "upper", "lower", "left", "right", etc., which indicate orientations or positional relationships, are used for convenience in describing embodiments and simplifying descriptions, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

The first embodiment is as follows:

as shown in fig. 1 to 6, a double-layered folding table comprises a first folding table top 1 on an upper layer, a second folding table top 2 on a lower layer, and a folding frame 3 for driving the first folding table top 1 and the second folding table top 2 to unfold or fold, wherein the folding frame 3 comprises a left foot frame 31 and a right foot frame 32 which are hinged in a crossing manner, the left foot frame 31 comprises a left foot frame front frame 311 and a left foot frame rear frame 312, the right foot frame 32 comprises a right foot frame front frame 321 and a right foot frame rear frame 322, a first mounting tube 33 for fixing the left end of the first folding table top 1 is arranged at the upper end of the left foot frame 31, a second mounting tube 34 for fixing the right end of the first folding table top 1 is arranged at the upper end of the right foot frame 32, a first folding support rod 35 is hinged between the front end of the first mounting tube 33 and the front end of the second mounting tube 34, a second folding support rod 36 is hinged at the rear end of the first mounting tube 33 and the rear end of the second mounting tube 34, a left folding support rod 36 is hinged, A sliding locking connecting piece 37 is hinged between the upper part of the front frame 321 of the right foot rest and the right side of the first folding supporting rod 35, between the upper part of the rear frame 312 of the left foot rest and the left side of the second folding supporting rod 36, and between the upper part of the rear frame of the right foot rest 32 and the right side of the second folding supporting rod 36, a first horizontal fixing tube 38 for fixing the left end of the second folding table top 2 is arranged below the first mounting tube 33 of the left foot rest 31, and a second horizontal fixing tube 39 for fixing the right end of the second folding table top 2 is arranged below the second mounting tube 34 of the right foot rest 32.

In the embodiment, by adopting the above double-layer folding table top structure, the first folding table top 1 and the second folding table top 2 can be opened for use, the using function and range of the folding table are expanded, when the folding table is in an opened state, the first mounting tube 33 and the second mounting tube 34 fix the left and right sides of the first folding table top 1, the first folding support bar 35 and the second folding support bar 36 are opened and extended to support the front and back sides of the first folding table top 1, compared with the prior art in which only the left and right sides of the first layer of folding table cloth are fixed, in the scheme, the periphery of the first folding table top 1 is supported, the supporting effect is good, articles are not easy to slide off, when articles are placed on the first table top, the force borne by the articles is dispersed to the first mounting tube 33, the second mounting tube 34, the first folding support bar 35 and the second folding support bar 36, thereby being transmitted to the whole folding frame 3, the bearing capacity of the first folding table top 1 is improved; the sliding locking connecting pieces 37 are positioned at the four corners of the folding frame 3, when the folding table is in an opening state, the sliding locking connecting pieces 37 are all opened and are in a locking state and are supported between the foot rest and the folding supporting rod, so that relative sliding is not easy to occur, the stability of the folding frame 3 is improved, even if one to three sliding locking connecting pieces 37 are in a non-locking state, other sliding locking connecting pieces 37 can still ensure that the folding table is in an opening stable state, the probability of the situation that the four sliding locking connecting pieces 37 are all unlocked is lower, sudden folding can not occur in the normal opening and using process, and the safety performance of the folding frame 3 in use is improved; when the folding table is used up for storage, the sliding locking connecting piece 37 is opened, the folding supporting rod 35 and the folding supporting rod 36 are folded in a non-locking slidable state, so that the whole folding frame 3 and the folding table top are folded, the folding of the whole double-layer folding table is completed, and the folding table is very convenient to open and fold.

As shown in fig. 4 and 5, the sliding locking connector 37 disposed between the foot stand and the folding support rod is required to satisfy the function of freely sliding when the folding table is opened and stored, and locking the fixed support when the folding table is completely opened, the sliding locking connector 37 is provided with a sliding groove 371 distributed along the length direction of the sliding locking connector 37, the side of the bottom end of the sliding groove 371 is provided with a locking groove 372 connected with the sliding groove 371, the joint of the sliding groove 371 and the locking groove 372 is provided with an elastic protrusion (not shown in the figure) with a limiting function, the upper part of the left foot stand front frame 311 and the upper part of the left foot stand rear frame 312 are provided with a buckle 310 sliding in the sliding groove 371, the upper parts of the right foot stand front frame 321 and the right foot stand rear frame 322 are provided with buckles 310 sliding in the sliding groove 371, when the double-layer folding table is required to be opened, the hinged left foot stand 31, slide to when bottommost, realize the locking in the locking groove 372 of card income side, can control the angle when folding table opens through locking groove 372 simultaneously, improve the stability of whole folding table, when needs are accomodate, upwards slide in getting back to spout 371 again with buckle 310 from locking groove 372 roll-off, make first folding bracing piece 35 and second folding bracing piece 36 can fold at will, accomplish and accomodate, spout 371 and locking groove 372 simple structure, convenient operation, and is with low costs, easily processing maintenance, and the locking is supported effectually.

The sliding lock connector 37 is provided with a sliding groove 371 and a locking groove 372, which weakens the mechanical strength of the sliding lock connector 37 to a certain extent, and in order to increase the strength of the sliding lock connector 37, a reinforcing plate perpendicular to the sliding lock connector 37 is arranged on the side edge of the sliding lock connector 37 in the length direction, so as to prevent the sliding lock connector 37 from being bent or broken in the operation or supporting process.

The foot stand is a common supporting component in the folding field, and for convenience of material taking and processing, in the embodiment, the left foot stand 31 is a U-shaped left foot stand, two ends of a first horizontal fixing tube 38 are fixed on a front frame and a rear frame of the U-shaped left foot stand, the right foot stand 32 is a U-shaped right foot stand, two ends of a second horizontal fixing tube 39 are respectively fixed on the front frame and the rear frame of the U-shaped right foot stand, the first horizontal fixing tube 38 and the second horizontal fixing tube 39 which are used for fixing two ends of the second folding desktop 2 are directly arranged on the U-shaped left foot stand and the U-shaped right foot stand, and the opening and the storage can be completed along with the rotation of the relative positions of the two foot stands, so that the folding table is simple to process and convenient to operate, the U-shaped left foot stand or the U-shaped right foot stand is provided with a locking buckle 4 which is buckled on the other foot stand, and the fixing effect is good, so that the folding table is not easy to scatter or, convenient storage and taking, avoid bumping people or article around.

After locking buckle 4 is opened, folding leg 3 can be opened suddenly, run into people or article around, all more slowly steady in order to make opening and packing up of folding leg 3, improves the security performance, is equipped with vertical air spring between frame 311 before left foot rest and the frame 321 before the right foot rest, be equipped with vertical air spring 5 between frame 312 behind the left foot rest and the frame 322 behind the right foot rest, air spring velocity of motion is slow relatively, dynamic force changes little, easy control, and when folding table was in the open mode, the air spring was in compression state, got placing object at the desktop, when making the weight on the desktop change, the air spring had the cushioning effect, reduced the damage of part junction.

In order to facilitate the folding and unfolding of the folding support rod and to have a better support performance after the folding support rod is unfolded, as shown in fig. 6, the first folding support rod 35 in the present embodiment includes a left support rod 351 located on the left side and a right support rod 352 located on the right side, a triangular connector 353 is hinged between the left support rod 351 and the right support rod 352, horizontal support surfaces 354 are respectively provided above the left support rod 351 and the right support rod 352, the second folding support rod 36 includes a left support rod 351 located on the left side and a right support rod 352 located on the right side, a triangular connector 353 is hinged between the left support rod 351 and the right support rod 352, and horizontal support surfaces 354 are respectively provided above the left support rod 351, the right support rod 352 and the folding.

On a left side, right branch vaulting pole 352 articulates respectively on two bottoms of triangle connecting piece 353, make a left side, there is the convenient rotation of certain distance between the right branch vaulting pole 352, folding bracing piece is in when straightening the state, the stability of triangle connecting piece 353 is high, can not rock, the stability of first folding bracing piece 35 and the second folding bracing piece 36 has been improved, make it have better supporting role to first folding desktop 1, horizontal holding surface 354 has increased the area of contact of desktop with the bracing piece, make the desktop keep leveling, play the effect of strengthening the face simultaneously, the mechanical strength of first folding bracing piece 35 and the second folding bracing piece 36 has been increased, make its resistance to compression, the anti deformability is stronger.

Folding leg 3 of folding table generally uses metal material, folding desktop uses cloth etc. therefore, the desktop is damaged easily compared in folding leg 3, need change new desktop, as shown in fig. 3, be equipped with the logical groove 331 of C type on first installation pipe 33 and second installation pipe 34 respectively, the left and right both ends of first folding desktop 1 are equipped with the fixed mounting post, the fixed mounting post card is gone into in the logical groove 331 of C type, when installing and changing first folding desktop 1, need not dismantle folding leg 3, and easy dismounting improves efficiency.

Example two:

as shown in fig. 7, the present embodiment is different from the first embodiment in that the left foot stand 31 includes a U-shaped left foot frame 31a, a first vertical extension tube 31b hinged on the upper portion of the front frame of the U-shaped left foot frame 31a, and a second vertical extension tube 31c hinged on the upper portion of the rear frame of the U-shaped left foot frame 31a, and both ends of a first horizontal fixing tube 38 are respectively fixed on the first vertical extension tube 31b and the second vertical extension tube 31 c; the right foot stand 32 comprises a U-shaped right foot frame 32A, a third vertical extension tube 32b hinged on the upper part of the front frame of the U-shaped right foot frame 32A and a fourth vertical extension tube 32c hinged on the upper part of the rear frame of the U-shaped right foot frame 32A, two ends of a second horizontal fixing tube 39 are respectively fixed on the third vertical extension tube 32b and the fourth vertical extension tube 32c, the lower end of the first vertical extension tube 31b is hinged with the lower part of the front frame of the U-shaped right foot frame 32A, the lower end of the second vertical extension tube 31c is hinged with the lower part of the rear frame of the U-shaped right foot frame 32A, the lower end of the third vertical extension tube 32b is hinged with the lower part of the front frame of the U-shaped left foot frame 31a, the lower end of the fourth vertical extension tube 32c is hinged with the lower part of the rear frame of the U-shaped left foot frame 31a, the first vertical extension tube 31b, the second vertical extension tube 31c, the third vertical extension tube 32b and the fourth vertical, when the double-layer folding table is in an open state, the lower end of the inner pipe is in interference contact with the lower wall of the blind hole.

When the double-layer folding table needs to be opened, the U-shaped left foot frame 31a and the U-shaped right foot frame 32a are relatively opened, the first vertical telescopic pipe 31b is compressed downwards, the second vertical telescopic pipe 31c, the third vertical telescopic pipe 32b and the fourth vertical telescopic pipe 32c are compressed downwards, when the double-layer folding table is completely opened, the lower ends of the inner pipes of the four telescopic pipes are in interference contact with the lower wall of the blind hole, the inner pipes are changed into supporting rods, when the double-layer folding table is in an opened state, the stability is further improved, meanwhile, the height of the first horizontal fixing pipe 38 and the second horizontal fixing pipe 39 at the two ends of the second folding table top 2 can be adjusted up and down on the vertical telescopic rods, and the position of the second folding table top. The above description is only for the embodiments of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the description in the above embodiments and the accompanying drawings. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the claims.

Claims

1. The utility model provides a double-deck folding table, is including the first folding desktop that is located the upper strata, the second folding desktop that is located the lower floor and drive first folding desktop and the second folding desktop expand or folding leg, its characterized in that: the folding frame comprises a left foot frame and a right foot frame which are hinged in a crossed manner, the left foot frame comprises a left foot frame front frame and a left foot frame rear frame, the right foot frame comprises a right foot frame front frame and a right foot frame rear frame, a first mounting tube for fixing the left end of a first folding desktop is arranged at the upper end of the left foot frame, a second mounting tube for fixing the right end of the first folding desktop is arranged at the upper end of the right foot frame, a first folding support rod is hinged between the front end of the first mounting tube and the front end of the second mounting tube, a second folding support rod is hinged at the rear end of the first mounting tube and the rear end of the second mounting tube, sliding locking connecting pieces are hinged between the upper part of the left foot frame front frame and the left side of the first folding support rod, between the upper part of the right foot frame front frame and the right side of the first folding support rod, between the upper part of the left foot frame rear frame and the left side of the second folding, the first horizontal fixing tube for fixing the left end of the second folding desktop is arranged below the first left foot stand mounting tube, and the second horizontal fixing tube for fixing the right end of the second folding desktop is arranged below the second right foot stand mounting tube.

2. The double-deck folding table as claimed in claim 1, wherein: the sliding locking connecting piece is provided with sliding grooves distributed along the length direction of the sliding locking connecting piece, the side of the bottom end of each sliding groove is provided with a locking groove connected with the sliding groove, the upper parts of the front frame and the rear frame of the left foot rest are provided with buckles sliding in the sliding grooves, the upper parts of the front frame and the rear frame of the right foot rest are provided with buckles sliding in the sliding grooves, and when the double-layer folding table is in an open state, the buckles are clamped into the locking grooves to be locked.

3. The double-deck folding table as claimed in claim 2, wherein: and a reinforcing plate perpendicular to the sliding locking connecting piece is arranged on the side edge of the sliding locking connecting piece along the length direction.

4. The double-deck folding table as in claim 3, wherein: the connecting part of the sliding groove and the locking groove is provided with an elastic bulge.

5. The double-deck folding table as claimed in claim 1, wherein: the left foot rest is a U-shaped left foot frame, the two ends of the first horizontal fixing pipe are fixed on the front frame and the rear frame of the U-shaped left foot frame, the right foot rest is a U-shaped right foot frame, and the two ends of the second horizontal fixing pipe are fixed on the front frame and the rear frame of the U-shaped right foot frame respectively.

6. The double-deck folding table as claimed in claim 1, wherein: the left foot stand comprises a U-shaped left foot frame, a first vertical telescopic pipe hinged to the upper part of a front frame of the U-shaped left foot frame and a second vertical telescopic pipe hinged to the upper part of a rear frame of the U-shaped left foot frame, and two ends of the first horizontal fixing pipe are respectively fixed on the first vertical telescopic pipe and the second vertical telescopic pipe; the right foot frame comprises a U-shaped right foot frame, a third vertical telescopic pipe hinged on the upper part of a front frame of the U-shaped right foot frame and a fourth vertical telescopic pipe hinged on the upper part of a rear frame of the U-shaped right foot frame, two ends of a second horizontal fixed pipe are respectively fixed on the third vertical telescopic pipe and the fourth vertical telescopic pipe, the lower end of the first vertical telescopic pipe is hinged with the lower part of the front frame of the U-shaped right foot frame, the lower end of the second vertical telescopic pipe is hinged with the lower part of a rear frame of the U-shaped right foot frame, the lower end of the third vertical telescopic pipe is hinged with the lower part of the front frame of the U-shaped left foot frame, and the lower end of the fourth vertical telescopic pipe is hinged with the lower, the first vertical telescopic pipe, the second vertical telescopic pipe, the third vertical telescopic pipe and the fourth vertical telescopic pipe all comprise outer pipes provided with blind holes and inner pipes sliding up and down in the blind holes, and when the double-layer folding table is in an open state, the lower ends of the inner pipes are in interference contact with the lower walls of the blind holes.

7. The double-folding table as claimed in any one of claims 5 or 6, wherein: the U-shaped left foot frame or the U-shaped right foot frame is provided with an anti-loose buckle buckled on the other foot frame.

8. The double-deck folding table as claimed in claim 1, wherein: first folding bracing piece is including being located left bracing piece and the right branch vaulting pole that is located the right side, and it has the triangular connection spare to articulate between left bracing piece and right branch vaulting pole, all is equipped with horizontal support face above left bracing piece, right branch vaulting pole and folding connection spare, second folding bracing piece is including being located left bracing piece and the right branch vaulting pole that is located the right side, and it has the triangular connection spare to articulate between left bracing piece and right branch vaulting pole, all is equipped with horizontal support face above left bracing piece and right branch vaulting pole.

9. The double-deck folding table as claimed in claim 1, wherein: the C-shaped through grooves are formed in the first installation pipe and the second installation pipe respectively, fixed installation columns are arranged at the left end and the right end of the first folding desktop, and the fixed installation columns are clamped into the C-shaped through grooves.

10. The double-deck folding table as claimed in claim 1, wherein: and a vertical gas spring is arranged between the left foot rest front frame and the right foot rest front frame, and a vertical gas spring is arranged between the left foot rest rear frame and the right foot rest rear frame.