CN211323654U

CN211323654U - Folding desk

Info

Publication number: CN211323654U
Application number: CN201922454137.5U
Authority: CN
Inventors: 孙莹
Original assignee: Sichuan Vocational and Technical College Communications
Current assignee: Sichuan Vocational and Technical College Communications
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-25
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a folding desk, which relates to the technical field of teaching aids and comprises desk legs and a desk plate, wherein the desk plate comprises a fixed desk plate and a movable desk plate which are hinged with each other, the fixed desk plate is fixed on the fixed desk leg, a first chute is arranged along the width direction of the desk plate, the movable desk leg is connected in the first chute in a sliding way, and a locking buckle is arranged between the movable desk leg and the movable desk plate; a first connecting rod capable of sliding along the vertical direction of the fixed table legs is arranged between the movable table plate and the fixed table legs, a cross connecting rod mechanism is arranged between the movable table legs and the fixed table legs, and the cross connecting rod mechanism is in linkage connection with the first connecting rod; the movable table leg comprises a table leg body and a rotating rod arranged at the top of the table leg body, the inner side of the rotating rod is hinged with the table leg body, the outer side of the rotating rod is connected with the table leg body through a tension spring, and the top of the rotating rod is connected in a first sliding groove in a sliding mode. The problem of inconvenient the depositing of desk among the prior art is solved.

Description

Folding desk

Technical Field

The utility model relates to a teaching aid technical field especially relates to a foldable desk.

Background

The desk is the desk that the student used in school's study, but the annual student number of school is unfixed, the desk that the school prepared has sometimes lacked and need newly purchase, and sometimes more, need look for the warehouse and deposit unnecessary desk and use later, but the desk is bulky, occupy great space in depositing the in-process, in order to save space, usually accumulate the desk among the prior art, but because the desk has table and table leg, the weight on upper portion is greater than the weight of lower part, the stability of the desk of having reduced and accumulated, arouse incident easily and damage the desk.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem among the prior art, the utility model provides a foldable desk has solved the inconvenient problem of depositing of desk among the prior art.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

the utility model provides a folding desk, it includes table leg and table, and the table includes looks articulated fixed table and movable table, and fixed table is fixed in on the fixed table leg, is provided with first spout along the width direction of table, and sliding connection has the movable table leg in the first spout, is provided with the locking between movable table leg and the movable table and detains.

A first connecting rod capable of sliding along the vertical direction of the fixed table legs is arranged between the movable table plate and the fixed table legs, a cross connecting rod mechanism is arranged between the movable table legs and the fixed table legs, and the cross connecting rod mechanism is in linkage connection with the first connecting rod.

The movable table leg comprises a table leg body and a rotating rod arranged at the top of the table leg body, the inner side of the rotating rod is hinged with the table leg body, the outer side of the rotating rod is connected with the table leg body through a tension spring, and the top of the rotating rod is connected in a first sliding groove in a sliding mode.

Furthermore, one end of the first connecting rod is hinged to the bottom surface of the movable table plate, a second sliding groove is formed in the middle lower portion of the fixed table leg, a second roller is connected to the second sliding groove in a sliding mode, and the other end of the first connecting rod is hinged to the second roller.

Furthermore, the cross connecting rod mechanism comprises a second connecting rod and a third connecting rod which are hinged at the middle part and have equal length, the top ends of the second connecting rod and the third connecting rod are respectively hinged at the middle upper parts of the fixed table legs and the movable table legs, the bottom end of the third connecting rod is hinged on the second roller, the bottom end of the second connecting rod is hinged on the sliding nail, and the sliding nail is inserted in a third sliding groove arranged at the middle lower part of the movable table legs.

Furthermore, the locking buckle comprises a hook part transversely fixed on the movable table plate and a pull ring rotatably connected to the top end of the rotating rod.

Further, the first chute extends from the movable table to the fixed table.

Further, the top of dwang is rotated and is connected with first gyro wheel, and the outer face of cylinder butt of first gyro wheel is on the bottom surface of first spout.

Furthermore, the rotating rod covers the table leg body.

The utility model has the advantages that: the movable table legs are connected with the fixed table legs through the cross connecting rod mechanism, the movable table plate is connected with the fixed table legs through the first connecting rods, the movable table legs are connected to the table plate in a sliding mode, when the movable table plate is pulled to be folded downwards, the lower ends of the first connecting rods can be pushed to move downwards in the second sliding grooves through the movable table plate, under the stretching and guiding effects of the first connecting rods, the second connecting rods and the third connecting rods of the cross connecting rod mechanism are folded, meanwhile, under the stretching and guiding effects of the cross connecting rod mechanism and the first connecting rods, the movable table legs are always parallel to the fixed table legs until the movable table legs and the fixed table legs are drawn together, the folding effect is better, the size after folding is smaller, the linkage in the folding process is good, and the moving direction of each folding part does not need to be controlled manually.

The dwang that the activity table leg top set up can provide certain deformability for the activity table leg when folding or open the desk, makes the process of folding or opening more smooth and easy, and the dwang need not artificial control under the effect of extension spring can resume with the collinear initial position of table leg body for the support function of activity table leg does not receive the influence. The folding table is locked through the locking fastener after being completely unfolded, can maintain the unfolded state to realize the function of the table, and when the table needs to be stored, the locking fastener is opened again to be folded.

The fixed table plate and the two fixed table legs at the two ends can be stably supported on the ground, so that the folding process of the folding movable table plate is more stable, and the convenience of operation is improved.

Drawings

Fig. 1 is a perspective view of the folding desk when unfolded.

Figure 2 is a left side view of the folding desk in an unfolded state.

Fig. 3 is a left side view of the folding desk in a semi-folded state.

Figure 4 is a left side view of the folding desk after folding.

Wherein, 1, fixing a table board; 2. a movable table plate; 3. fixing the table legs; 31. a second chute; 4. a movable table leg; 41. a table leg body; 411. a third chute; 42. rotating the rod; 421. a first roller; 43. a tension spring; 5. a first chute; 6. a locking buckle; 61. a hook portion; 62. a pull ring; 7. a first link; 71. a second roller; 8. a cross-bar linkage; 81. a second link; 811. sliding nails; 82. and a third link.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1, the folding desk comprises four legs and a desk plate, the desk plate comprises a fixed desk plate 1 and a movable desk plate 2 which are hinged through hinges, the hinged edges are parallel to the length direction of the desk plate, and the width of the movable desk plate 2 is larger than that of the fixed desk plate 1. After the folding desk is completely opened, a fixed desk leg 3 is respectively fixed on the left side and the right side below the fixed desk plate 1, and the movable desk leg 4 is supported on the left side and the right side below the movable desk plate 2.

The fixed table board 1 is fixed on the fixed table legs 3, a first sliding groove 5 is arranged along the width direction of the table board, the first sliding groove 5 extends from the movable table board 2 to the fixed table board 1, and the length of the first sliding groove 5 is larger than the moving distance of the movable table legs 4.

As shown in fig. 3, the movable table leg 4 includes a table leg body 41 and a rotating rod 42 disposed on the top of the table leg body 41, the inner side of the rotating rod 42 is hinged to the table leg body 41, the outer side of the rotating rod 42 is connected to the outer side of the table leg body 41 through a tension spring 43, the top end of the rotating rod 42 is rotatably connected to a first roller 421, the outer cylindrical surface of the first roller 421 abuts against the bottom surface of the first sliding groove 5, and two side surfaces of the first sliding groove 5 are used for guiding the sliding of the first roller 421. The rotating rod 42 is covered on the table leg body 41.

Locking buckle 6 is including transversely being fixed in hook portion 61 on the activity table 2 bottom surface and rotating the pull ring 62 of connecting in dwang 42 top, the both ends of pull ring 62 are rotated and are cup jointed at the both ends of first gyro wheel 421 pivot, catch on the pull ring 62 through hook portion 61 and can fix the position of activity table 2 for activity table leg 4, the expansion state that keeps the desk supplies the people to use, when needing folding desk, take off pull ring 62 from hook portion 61, make activity table leg 4 can slide to the inboard and make activity table 2 can fold down for activity table 2.

A first connecting rod 7 which can slide along the vertical direction of the fixed table legs 3 is arranged between the movable table plate 2 and the fixed table legs 3, and a cross connecting rod mechanism 8 is arranged between the movable table legs 4 and the fixed table legs 3. One end of the first connecting rod 7 is hinged on the bottom surface of the movable table plate 2, and the other end of the first connecting rod 7 is hinged on the second roller 71. The lower middle part of the fixed table leg 3 is provided with a second sliding chute 31, and the second roller 71 is embedded in the second sliding chute 31, so that when the first connecting rod 7 is pushed or pulled by the movable table 2, the second roller 71 can slide downwards or upwards along the second sliding chute 31.

The cross link mechanism 8 comprises a second connecting rod 81 and a third connecting rod 82 which are hinged at the middle part and have the same length, the second connecting rod 81 and the third connecting rod 82 are in an X shape, the top ends of the second connecting rod 81 and the third connecting rod 82 are respectively hinged at the middle upper parts of the fixed table legs 3 and the movable table legs 4, the bottom ends of the second connecting rod 81 and the third connecting rod 82 are respectively hinged at the middle lower parts of the fixed table legs 3 and the movable table legs 4 in a sliding way, namely, the bottom end of the third connecting rod 82 is hinged on the second roller 71, the second roller 71 is connected in the second sliding groove 31 in a sliding way, the bottom end of the second connecting rod 81 is hinged on a sliding pin 811, and the sliding pin 811 is inserted in the third sliding groove 411 arranged at the. The sliding pin 811 is always arranged side by side with the second roller 71 to ensure that the bottom ends of the second link 81 and the third link 82 are always located in the same horizontal plane.

When the desk is folded from the unfolding state, firstly, the pull ring 62 is taken down from the hook part 61, the movable desk plate 2 is pushed downwards, the movable desk plate 2 rotates clockwise, the movable desk plate 2 pushes the lower end of the first connecting rod 7 to slide downwards in the second sliding groove 31, under the stretching and guiding action of the first connecting rod 7, the second connecting rod 81 and the third connecting rod 82 of the cross connecting rod mechanism 8 are folded, meanwhile, the movable desk leg 4 is pushed to be parallelly drawn towards the fixed desk leg 3 along the first sliding groove 5 until the movable desk leg 4 is pushed towards the fixed desk leg 3, at the moment, the movable desk plate 2 rotates clockwise 90 degrees, and the horizontal state before is rotated into the vertical state. When the desk is unfolded from the folded state, the whole process is the reverse process of the folding process. Fig. 2 to 4 show the process of the folding desk from being completely unfolded to being completely folded.

The rotating rod 42 enables the movable desk leg 4 to have a certain deformation capacity in the opening and folding processes of the desk, when the desk is opened, the movable desk leg 4 moves to the movable desk plate 2 from the outer side of the lower part of the fixed desk plate 1 under the pushing action of the first connecting rod 7, at this time, because a certain included angle is formed between the movable desk plate 2 and the fixed desk plate 1, the rotating rod 42 is forced to rotate by a certain angle in the anticlockwise direction around the hinge of the rotating rod 42 and the desk leg body 41 under the action of the movable desk plate 2, and when the movable desk plate 2 is completely opened, the rotating rod 42 can restore to the original position under the tension of the tension spring 43. Similarly, when the desk is folded, the switching rod 42 is forced to rotate counterclockwise by a certain angle around the hinge between the switching rod and the desk leg body 41 due to the clockwise rotation of the movable desk 2, and when the movable desk leg 4 moves inward to the lower side of the fixed desk 1, the switching rod 42 returns to the initial state of covering the desk leg body 41 under the pulling force of the tension spring 43.

Claims

1. A folding desk comprises desk legs and a desk plate, and is characterized in that the desk plate comprises a fixed desk plate (1) and a movable desk plate (2) which are hinged with each other, the fixed desk plate (1) is fixed on the fixed desk legs (3), a first sliding groove (5) is arranged along the width direction of the desk plate, a movable desk leg (4) is connected in the first sliding groove (5) in a sliding manner, and a locking buckle (6) is arranged between the movable desk leg (4) and the movable desk plate (2);

a first connecting rod (7) capable of sliding along the vertical direction of the fixed table legs (3) is arranged between the movable table plate (2) and the fixed table legs (3), a cross connecting rod mechanism (8) is arranged between the movable table legs (4) and the fixed table legs (3), and the cross connecting rod mechanism (8) is in linkage connection with the first connecting rod (7);

movable table leg (4) include table leg body (41) and set up in dwang (42) at table leg body (41) top, the inboard of dwang (42) with table leg body (41) are articulated and the outside is connected through extension spring (43) with table leg body (41), the top sliding connection of dwang (42) in first spout (5).

2. The folding desk as claimed in claim 1, wherein one end of the first connecting rod (7) is hinged to the bottom surface of the movable desk (2), a second sliding groove (31) is formed in the middle lower portion of the fixed desk leg (3), a second roller (71) is slidably connected to the second sliding groove (31), and the other end of the first connecting rod (7) is hinged to the second roller (71).

3. The folding desk according to claim 2, characterized in that the cross-bar linkage (8) comprises a second bar (81) and a third bar (82) hinged at the middle and having equal length, the top ends of the second bar (81) and the third bar (82) are hinged at the middle upper part of the fixed leg (3) and the movable leg (4), respectively, the bottom end of the third bar (82) is hinged at the second roller (71), the bottom end of the second bar (81) is hinged at a sliding pin (811), and the sliding pin (811) is inserted in a third sliding slot (411) arranged at the middle lower part of the movable leg (4).

4. The folding desk according to claim 1, characterized in that said locking clasp (6) comprises a hook (61) fixed transversally to the movable desk plate (2) and a tab (62) rotatably connected to the top end of said rotating lever (42).

5. The folding desk according to claim 1, characterized in that said first runner (5) extends from said movable desk (2) to said fixed desk (1).

6. The folding desk according to claim 1, wherein a first roller (421) is rotatably connected to the top end of the rotating rod (42), and an outer cylindrical surface of the first roller (421) abuts against the bottom surface of the first sliding groove (5).

7. The folding desk of claim 1, wherein said pivoting lever (42) is hinged to said leg body (41).