A foldable desk that is convenient for transportation

Abstract

The present invention relates to a foldable desk, and particularly to a foldable desk convenient for transportation. The present invention provides a foldable desk convenient for people to transport. A foldable desk convenient for transportation includes universal wheels, a mounting plate frame, a folding mechanism, a clamping mechanism, etc.; four groups of universal wheels are rotatably provided at the lower part of the mounting plate frame, with every two universal wheels as a group, and there are eight universal wheels. A folding mechanism is provided on the mounting plate frame, and a clamping mechanism is provided on the mounting plate frame. In the present invention, people manually rotate the handle in the reverse direction, so that the rotating shaft rotates in the reverse direction, and the folding table board rotates in the reverse direction for folding. When the folding table board is folded, people stop rotating the handle, and then people push the mounting plate frame to make the universal wheels rotate, thereby achieving the effect of convenient movement and transportation.

Description

Technical Field

[0001] The present invention relates to a foldable desk, and particularly to a foldable desk convenient for transportation. Background Art

[0002] A desk refers to a table equipped for convenient work in daily work, life and social activities. Mobile work is the norm for office workers. Existing desks generally have the problems that fixed desks occupy a large area and are not convenient for transportation. At the same time, the desktop space of the desks is small and cannot hold many items, which often brings troubles to office workers. Therefore, a foldable desk needs to be designed.

[0003] Patent Application: CN214904541U, with a publication date of November 30, 2021, discloses a foldable desk. When more office positions are needed due to a large number of people, the first rotating table body and the second rotating table body can be rotated so that the first rotating table body and the second rotating table body are in a state perpendicular to the desk housing and the desk body. When not in use, the first rotating table body and the second rotating table body can be rotated so that the first rotating table body and the second rotating table body are folded and stored between the desk body and the desk housing. A plurality of limiting columns are provided at the rear end of the desk housing, which can play a limiting role on the first rotating table body and the second rotating table body. When the first rotating table body and the second rotating table body touch the limiting columns, they can stop, and at this time, the first rotating table body and the second rotating table body are folded and stored. This desk achieves the folding effect through the first rotating table body and the second rotating table body, but the structure of this desk is relatively large, requires more manpower for moving and transporting, and is inconvenient during moving and transporting.

[0004] We have designed a foldable desk convenient for people to transport to overcome the disadvantage that the existing desks have a large structure and are inconvenient for people to transport. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a foldable desk convenient for people to transport to overcome the disadvantage that the existing desks are inconvenient for transportation.

[0006] To achieve the above objectives, the present invention is realized through the following solutions: A foldable desk convenient for transportation includes:

[0007] A mounting plate frame and universal wheels. Four groups of universal wheels are rotatably provided at the lower part of the mounting plate frame, with two universal wheels in each group, and there are eight universal wheels in total;

[0008] A folding mechanism. A folding mechanism convenient for people to work is provided on the mounting plate frame;

[0009] The folding mechanism includes:

[0010] The first lead screw is rotatably provided at the left side of the rear inner side of the mounting plate frame;

[0011] The first rotating rod is provided at the rear side of the left part inside the mounting plate frame;

[0012] The folding table board: Two folding table boards for people to work are rotatably provided on the first rotating rod;

[0013] The rotating shaft is rotatably provided at the right side of the rear bottom inside the mounting plate frame;

[0014] The rotating handle is provided on the upper side of the rotating shaft;

[0015] The first drive belt: A first drive belt is wound between the rotating shaft and the first lead screw through a transmission wheel;

[0016] The first guide rod is welded at the left side of the rear bottom inside the mounting plate frame;

[0017] The moving block: A moving block is slidably provided on the first guide rod, and the moving block is threadedly connected to the first lead screw;

[0018] The arc-shaped top block is provided on the upper side of the moving block;

[0019] The first pull rope: The first pull ropes are provided on both the front and rear sides of the moving block, and the first pull ropes are connected to the folding table board on the same side;

[0020] The clamping mechanism is provided on the mounting plate frame for clamping the folding table board.

[0021] As an improvement to the above solution, the folding mechanism further includes:

[0022] The first guide rod is provided at the left side of the rear bottom inside the mounting plate frame;

[0023] The first sliding rod: The first sliding rod is slidably provided at the left side of the lower part of the rear folding table board;

[0024] The first spring: A first spring is connected between the first sliding rod and the rear folding table board, and the first spring is wound around the first sliding rod.

[0025] As an improvement to the above solution, the clamping mechanism includes:

[0026] The clamping blocks: Two clamping blocks for clamping the folding table board are slidably provided at the front side of the left part inside the mounting plate frame, and two clamping blocks are also slidably provided at the right side of the rear part of the mounting plate frame;

[0027] The second sliding rod: The second sliding rods are provided in both clamping blocks, and the second sliding rods are slidably connected to the mounting plate frame;

[0028] The pushing blocks: The pushing blocks are provided on the outer sides of both clamping blocks, and the pushing blocks are slidably connected to the mounting plate frame;

[0029] Second spring: A second spring is connected between each of the two clamping blocks and the mounting plate frame. The second spring is wound around the second sliding rod.

[0030] As an improvement to the above solution, it further includes a lifting and lowering mechanism for improving people's work efficiency. The lifting and lowering mechanism includes:

[0031] Second lead screw: A second lead screw is rotatably provided at the left rear side inside the mounting plate frame.

[0032] Second drive belt: A second drive belt is wound around the first lead screw and the second lead screw through a transmission wheel.

[0033] Arc-shaped vision blocking plate: An arc-shaped vision blocking plate is threadedly provided on the second lead screw. The arc-shaped vision blocking plate is slidably connected to the mounting plate frame.

[0034] Guide block: Guide blocks are provided at the left rear side and the left side of the rear part of the mounting plate frame. There are two guide blocks. The arc-shaped vision blocking plate is slidably connected to the guide blocks.

[0035] As an improvement to the above solution, it further includes a holding mechanism for placing items. The holding mechanism includes:

[0036] Second rotating rod: Second rotating rods are rotatably provided at the front left side of the lower part and the right rear side of the lower part of the mounting plate frame. There are two second rotating rods.

[0037] Holding plate: Holding plates are provided on both of the two second rotating rods.

[0038] Third rotating rod: Third rotating rods are provided on both sides of the holding plate. There are four third rotating rods.

[0039] Limiting plate: Limiting plates are rotatably provided on the third rotating rods. There are four limiting plates.

[0040] Second guide rod: Second guide rods are provided at the left rear side inside the mounting plate frame and the left side of the rear part inside the mounting plate frame. There are two second guide rods.

[0041] Pulling block: Pulling blocks are slidably provided on both of the two second guide rods.

[0042] Pressing block: Pressing blocks are slidably provided on both of the two second guide rods. The pressing blocks are connected to the arc-shaped vision blocking plate.

[0043] Second pulling rope: Second pulling ropes are provided on both of the two holding plates.

[0044] Guide wheel: Guide wheels are rotatably provided on the front and rear sides of the left part inside the mounting plate frame and the left and right sides of the rear part inside the mounting plate frame. There are four guide wheels. The second pulling rope sequentially bypasses the two guide wheels on the same side and is connected to the pulling block on the same side.

[0045] Third spring: Third springs are connected between the two pulling blocks and the mounting plate frame, and the third springs are wound around the second guide rod.

[0046] Fourth spring: Fourth springs are connected between the two pressing blocks and the pulling blocks on the same side, and the fourth springs are wound around the second guide rod.

[0047] Torsion spring: Torsion springs are connected between the third rotating rod and the limiting plates on the same side. There are four torsion springs, and the torsion springs are wound around the third rotating rod.

[0048] As an improvement to the above solution, it further includes a placement mechanism for placing documents, and the placement mechanism includes:

[0049] Third sliding rod: A third sliding rod is provided on the front side of the upper part of the left folding table board.

[0050] Wedge-shaped block: A wedge-shaped block is slidably provided on the third sliding rod.

[0051] Fifth spring: A fifth spring is connected between the wedge-shaped block and the left folding table board, and the fifth spring is wound around the third sliding rod.

[0052] Push wheel: A push wheel is rotatably provided at the rear side of the wedge-shaped block.

[0053] Placement rack: A placement rack is rotatably provided on the front side of the left folding table board, and the push wheel is slidably connected to the placement rack.

[0054] As an improvement to the above solution, it further includes a clamping mechanism for placing water cups, and the clamping mechanism includes:

[0055] Heating block: A heating block is provided on the upper right side of the rear folding table board.

[0056] Fourth sliding rod: Three fourth sliding rods are slidably provided on the left and right sides inside the rear folding table board, and there are six fourth sliding rods.

[0057] Clamping block: Clamping blocks are connected between every three adjacent fourth sliding rods.

[0058] Sixth spring: Three sixth springs are connected between the clamping blocks and the right folding table board. There are six sixth springs, and the sixth springs are wound around the fourth sliding rods.

[0059] As an improvement to the above solution, a round hole is opened on the upper right side of the rear folding table board.

[0060] The advantages of the present invention are as follows: 1. By manually rotating the crank in the reverse direction, the rotating shaft rotates in the reverse direction, causing the folding table board to rotate in the reverse direction for folding. When the folding table board is folded, people stop rotating the crank, and then people push the mounting plate frame to make the universal wheels rotate, thus achieving the effect of convenient movement and transportation.

[0061] 2. The rotation of the first lead screw drives the rotation of the second transmission belt, thereby causing the second lead screw to rotate and the arc-shaped vision blocker to move upward. When people are working, the arc-shaped vision blocker plays a blocking effect, improving people's work efficiency.

[0062] 3. The folding table board on the left drives the wedge block to rotate. When the wedge block moves and contacts the mounting plate frame, the wedge block moves to the right, causing the placement rack to rotate. Subsequently, the wedge block moves away from the mounting plate frame, and then the wedge block drives the push wheel to move to the left, causing the placement rack to rotate in the reverse direction. Then people can place documents between the placement rack and the mounting plate frame, thus achieving the placement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0064] Figure 2 It is a three-dimensional structure schematic diagram of the first perspective of the folding mechanism of the present invention.

[0065] Figure 3 It is a three-dimensional structure schematic diagram of the second perspective of the folding mechanism of the present invention.

[0066] Figure 4 It is a three-dimensional structure schematic diagram of the third perspective of the folding mechanism of the present invention.

[0067] Figure 5 It is an enlarged view of part A of the present invention.

[0068] Figure 6 It is a partial three-dimensional structure schematic diagram of the folding mechanism of the present invention.

[0069] Figure 7 It is a three-dimensional structure schematic diagram of the first perspective of the card position mechanism of the present invention.

[0070] Figure 8 It is a three-dimensional structure schematic diagram of the second perspective of the card position mechanism of the present invention.

[0071] Figure 9 It is a three-dimensional structure schematic diagram of the retracting and lowering mechanism of the present invention.

[0072] Figure 10 It is a sectional three-dimensional structure schematic diagram of the retracting and lowering mechanism of the present invention.

[0073] Figure 11 It is a sectional three-dimensional structure schematic diagram of the holding mechanism of the present invention.

[0074] Figure 12 It is an enlarged view of part B of the present invention.

[0075] Figure 13 It is a three-dimensional structure schematic diagram of the first perspective of the placement mechanism of the present invention.

[0076] Figure 14 This is a second perspective three-dimensional structural schematic diagram of the placement mechanism of the present invention.

[0077] Figure 15 This is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0078] Figure 16 This is an enlarged view of part C of the present invention.

[0079] Explanation of reference numerals in the drawings: 1 - universal wheel, 2 - mounting plate frame, 3 - folding mechanism, 31 - first lead screw, 32 - folding table board, 33 - first rotating rod, 34 - turning handle, 35 - rotating shaft, 36 - first transmission belt, 37 - first guide rod, 38 - moving block, 39 - arc-shaped top block, 310 - first pulling rope, 311 - first sliding rod, 312 - first spring, 4 - clamping mechanism, 41 - pushing block, 42 - clamping block, 43 - second sliding rod, 44 - second spring, 5 - lifting and lowering mechanism, 51 - second transmission belt, 52 - arc-shaped light-blocking plate, 53 - second lead screw, 54 - guiding block, 6 - placing mechanism, 61 - second rotating rod, 62 - placing plate, 63 - third rotating rod, 64 - second pulling rope, 65 - limiting plate, 66 - pressing block, 67 - guiding wheel, 68 - third spring, 69 - pulling block, 610 - fourth spring, 611 - torsion spring, 612 - second guide rod, 7 - placement mechanism, 71 - wedge-shaped block, 72 - third sliding rod, 73 - fifth spring, 74 - pushing wheel, 75 - placement rack, 8 - clamping mechanism, 81 - heating block, 82 - fourth sliding rod, 83 - clamping block, 84 - sixth spring. Detailed implementation manners

[0080] Next, in combination with the drawings and specific implementation manners, the present invention will be further described: Embodiment 1

[0081] A foldable office desk that is convenient for transportation. Now refer to Figure 1 , which includes universal wheels 1, a mounting plate frame 2, a folding mechanism 3 and a clamping mechanism 4. Four groups of universal wheels 1 are rotatably provided at the lower part of the mounting plate frame 2. Every two universal wheels 1 form a group, and there are eight universal wheels 1. A clamping mechanism 4 is provided on the mounting plate frame 2, and a folding mechanism 3 is provided on the mounting plate frame 2.

[0082] Now refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 13 , Figure 14 , Figure 15 andFigure 16 , the folding mechanism 3 includes a first lead screw 31, a folding tabletop 32, a first rotating rod 33, a turning handle 34, a rotating shaft 35, a first transmission belt 36, a first guide rod 37, a moving block 38, an arc-shaped top block 39, a first pulling rope 310, a first sliding rod 311 and a first spring 312. The first lead screw 31 is rotatably arranged at the rear side and to the left of the inner part of the mounting plate frame 2. The first rotating rod 33 is welded to the rear side of the left part of the mounting plate frame 2. Two folding tabletops 32 are rotatably arranged on the first rotating rod 33. A circular hole is formed on the right side of the rear folding tabletop 32. The rotating shaft 35 is rotatably arranged at the rear side and to the right of the bottom of the mounting plate frame 2. The turning handle 34 is arranged on the upper side of the rotating shaft 35. The first transmission belt 36 is wound around the rotating shaft 35 and the first lead screw 31 through transmission wheels. The first guide rod 37 is welded to the rear side and to the left of the bottom of the mounting plate frame 2. The moving block 38 is slidably arranged on the first guide rod 37. The moving block 38 is in threaded connection with the first lead screw 31. The arc-shaped top block 39 is welded to the upper side of the moving block 38. The arc-shaped top block 39 contacts the folding tabletop 32. The first pulling ropes 310 are arranged on both the front and rear sides of the moving block 38. The first pulling ropes 310 are connected to the folding tabletop 32 on the same side. The first sliding rod 311 is slidably arranged at the lower left side of the rear folding tabletop 32. After the first sliding rod 311 moves, it contacts the front folding tabletop 32. A first spring 312 is connected between the first sliding rod 311 and the rear folding tabletop 32. The first spring 312 is wound around the first sliding rod 311.

[0083] Now refer to Figure 7 - 8 , the positioning mechanism 4 includes a pushing block 41, a clamping block 42, a second sliding rod 43 and a second spring 44. The clamping block 42 is slidably arranged at the front side of the left part of the mounting plate frame 2. The clamping block 42 is also slidably arranged at the right side of the rear part of the mounting plate frame 2. There are two clamping blocks 42. The second sliding rods 43 are welded inside both clamping blocks 42. The second sliding rods 43 are slidably connected to the mounting plate frame 2. The pushing blocks 41 are welded to the outer sides of both clamping blocks 42. The pushing blocks 41 are slidably connected to the mounting plate frame 2. The second springs 44 are connected between both clamping blocks 42 and the mounting plate frame 2. The second springs 44 are wound around the second sliding rods 43.

[0084] When people need to use a desk, they can use this foldable desk that is convenient for transportation. When people need to work, they can manually turn the handle 34, which causes the rotating shaft 35 to rotate, making the first drive belt 36 rotate. Consequently, the first lead screw 31 rotates, and then the moving block 38 moves upward along the first guide rod 37, causing the arc-shaped top block 39 to move upward. At this time, the pulling force of the first pull rope 310 on the folding tabletop 32 decreases, enabling the first spring 312 in the compressed state to reset and drive the first slide bar 311 to move outward and reset to contact the left folding tabletop 32, thereby causing the folding tabletop 32 to rotate slightly. When the arc-shaped top block 39 moves to contact the two folding tabletops 32, the arc-shaped top block 39 drives the folding tabletops 32 to open. When the folding tabletop 32 contacts the latch 42, the folding tabletop 32 drives the latch 42 to move outward, causing the push block 41 to move outward and the second slide bar 43 to move outward, compressing the second spring 44. When the folding tabletop 32 continues to rotate away from the latch 42, the second spring 44 resets to drive the latch 42 to reset, causing the push block 41 and the second slide bar 43 to move inward. At this time, the latch 42 locks the folding tabletop 32 on the same side, and people stop turning the handle 34. People can work on the folding tabletop 32. When people finish working, first, they move the push block 41 outward, causing the second slide bar 43 and the latch 42 to move outward, compressing the second spring 44. When the latch 42 moves away from the folding tabletop 32, people can manually turn the handle 34 in the reverse direction, causing the rotating shaft 35 to rotate in the reverse direction. The first drive belt 36 rotates in the reverse direction accordingly, making the first lead screw 31 rotate in the reverse direction, so that the moving block 38 moves downward along the first guide rod 37, and then the arc-shaped top block 39 moves downward. Under the pulling force of the first pull rope 310, the folding tabletop 32 rotates in the reverse direction. When the folding tabletop 32 rotates in the reverse direction away from the latch 42, people release the push block 41, causing the second spring 44 to reset and drive the second slide bar 43 to reset, making the push block 41 and the latch 42 move inward to reset. When the first slide bar 311 contacts the left folding tabletop 32, the first spring 312 is compressed. When the folding tabletop 32 is folded to the appropriate position, people stop turning the handle 34 in the reverse direction. Subsequently, people can push this foldable desk that is convenient for transportation to the appropriate position, causing the universal wheels 1 to rotate. Embodiment 2

[0085] Based on Embodiment 1, now refer to Figure 1 、 Figure 9 、 Figure 10 and Figure 11, it further includes a receiving and lowering mechanism 5. The receiving and lowering mechanism 5 includes a second drive belt 51, an arc-shaped vision blocking plate 52, a second lead screw 53, and a guide block 54. A second lead screw 53 is rotatably provided at the left rear side inside the mounting plate frame 2. A second drive belt 51 is wound around the first lead screw 31 and the second lead screw 53 through a transmission wheel. An arc-shaped vision blocking plate 52 is threadedly provided on the second lead screw 53. The arc-shaped vision blocking plate 52 is slidably connected to the mounting plate frame 2. Guide blocks 54 are welded to the left rear side and the left side of the rear part of the mounting plate frame 2. There are two guide blocks 54. The arc-shaped vision blocking plate 52 is slidably connected to the guide blocks 54.

[0086] Now refer to Figure 1 , Figure 11 and Figure 12 , it further includes a holding mechanism 6. The holding mechanism 6 includes a second rotating rod 61, a holding plate 62, a third rotating rod 63, a second pulling rope 64, a limiting plate 65, a pressing block 66, a guide wheel 67, a third spring 68, a pulling block 69, a fourth spring 610, a torsion spring 611, and a second guide rod 612. A second rotating rod 61 is rotatably provided at the front side of the lower left part of the mounting plate frame 2. A second rotating rod 61 is also rotatably provided at the right side of the lower rear part of the mounting plate frame 2. There are two second rotating rods 61. A second guide rod 612 is provided at the left rear side inside the mounting plate frame 2. A second guide rod 612 is also provided at the left side of the rear part inside the mounting plate frame 2. There are two second guide rods 612. Holding plates 62 are welded to both of the two second rotating rods 61. Third rotating rods 63 are provided on both sides of the holding plate 62. There are four third rotating rods 63. Limiting plates 65 are rotatably provided on the third rotating rods 63. There are four limiting plates 65. Pulling blocks 69 are slidably provided on both of the two second guide rods 612. Pressing blocks 66 are slidably provided on both of the two second guide rods 612. The pressing block 66 is connected to the arc-shaped vision blocking plate 52. The pressing block 66 is located above the pulling block 69 on the same side. Second pulling ropes 64 are provided on both of the two holding plates 62. Guide wheels 67 are rotatably provided at the front and rear sides of the left part inside the mounting plate frame 2. Guide wheels 67 are also rotatably provided at the left and right sides of the rear part inside the mounting plate frame 2. There are four guide wheels 67. The second pulling rope 64 sequentially bypasses the two guide wheels 67 on the same side and is connected to the pulling block 69 on the same side. Third springs 68 are connected between both of the two pulling blocks 69 and the mounting plate frame 2. The third spring 68 is wound around the second guide rod 612. Fourth springs 610 are connected between both of the two pressing blocks 66 and the pulling block 69 on the same side. The fourth spring 610 is wound around the second guide rod 612. Torsion springs 611 are connected between the third rotating rod 63 and the limiting plate 65 on the same side. There are four torsion springs 611. The torsion spring 611 is wound around the third rotating rod 63.

[0087] Now refer to Figure 1 , Figure 13 and Figure 14, it further includes a placing mechanism 7. The placing mechanism 7 includes a wedge block 71, a third slide bar 72, a fifth spring 73, a pushing wheel 74 and a placing rack 75. The front side of the upper part of the left folding table board 32 is welded with the third slide bar 72. The wedge block 71 is slidably arranged on the third slide bar 72. The wedge block 71 contacts the mounting plate frame 2. A fifth spring 73 is connected between the wedge block 71 and the left folding table board 32. The fifth spring 73 is wound around the third slide bar 72. The pushing wheel 74 is rotatably arranged at the rear side of the wedge block 71. The placing rack 75 is rotatably arranged at the front side of the left folding table board 32. The pushing wheel 74 is slidably connected with the placing rack 75.

[0088] Now refer to Figure 1 , Figure 15 and Figure 16 , it further includes a clamping mechanism 8. The clamping mechanism 8 includes a heating block 81, a fourth slide bar 82, a clamping block 83 and a sixth spring 84. The bottom of the inner part of the round hole on the upper right side of the rear folding table board 32 is provided with the heating block 81. Six fourth slide bars 82 are slidably arranged on the left and right sides of the round hole in the rear folding table board 32. Three clamping blocks 83 are welded between every three adjacent fourth slide bars 82. Three sixth springs 84 are connected between the clamping block 83 and the right folding table board 32. There are six sixth springs 84. The sixth springs 84 are wound around the fourth slide bars 82.

[0089] The rotation of the first lead screw 31 drives the rotation of the second transmission belt 51, so that the second lead screw 53 rotates, and the arc-shaped vision-blocking plate 52 moves upward along the guide block 54. Subsequently, people can place some items in the arc-shaped vision-blocking plate 52, which has a blocking effect and improves people's office efficiency. When people finish working, they first take out the items, and then the first lead screw 31 rotates in the reverse direction to drive the second transmission belt 51 to rotate in the reverse direction, so that the second lead screw 53 rotates in the reverse direction, and the arc-shaped vision-blocking plate 52 moves downward along the guide block 54.

[0090] The arc-shaped vision-blocking plate 52 moves upward, driving the pressing block 66 to move upward. The fourth spring 610 plays a buffering role. When the pressing block 66 moves upward to a certain position, under the elastic force of the third spring 68 in the compressed state, the third spring 68 drives the pulling block 69 to move upward, making the pulling force of the second pulling rope 64 on the placing plate 62 smaller. Under the action of gravity, the placing plate 62 rotates downward, causing the second rotating rod 61 to rotate. The downward rotation of the placing plate 62 drives the limiting plate 65 to rotate until it disengages from the mounting plate frame 2. Under the elastic force of the torsion spring 611 in the compressed state, the limiting plate 65 is driven to rotate inward. Subsequently, the placing plate 62 is in a horizontal state, and people can place some items on the placing plate 62. The arc-shaped vision-blocking plate 52 moves downward, driving the pressing block 66 to move downward, thereby compressing the fourth spring 610. Under the action of the elastic force of the fourth spring 610, the pulling block 69 moves downward, compressing the third spring 68. The second pulling rope 64 pulls the placing plate 62 to rotate in the reverse direction. At this time, the second rotating rod 61 rotates in the reverse direction. When the limiting plate 65 contacts the mounting plate frame 2, the mounting plate frame 2 squeezes the limiting plate 65 to rotate outward, compressing the torsion spring 611.

[0091] The folding table board 32 on the left side rotates, driving the wedge-shaped block 71 to rotate. When the wedge-shaped block 71 contacts the mounting plate frame 2, the wedge-shaped block 71 is squeezed by the mounting plate frame 2 and moves to the right, compressing the fifth spring 73. The pushing wheel 74 moves to the right accordingly, thereby causing the placing rack 75 to rotate. When the wedge-shaped block 71 does not contact the mounting plate frame 2, the fifth spring 73 resets and drives the wedge-shaped block 71 to move to the left, causing the pushing wheel 74 to move to the left, and the placing rack 75 rotates in the reverse direction. When the folding table board 32 is in a horizontal state and stationary, people can place some documents vertically and orderly between the placing rack 75 and the mounting plate frame 2, thus achieving the placing effect.

[0092] When people need to place a water cup, they move the clamping block 83 outward, thereby causing the fourth sliding rod 82 to move outward, compressing the sixth spring 84. Subsequently, people place the water cup on the upper side of the heating block 81. After placing, people release the clamping block 83, thereby causing the sixth spring 84 to reset and drive the clamping block 83 to move inward, causing the fourth sliding rod 82 to move inward, thus achieving the clamping effect. When people need to heat the water cup, they start the heating block 81. When heating is completed, people turn off the heating block 81. When people need to take out the water cup, they move the clamping block 83 outward according to the above steps.

[0093] For those skilled in the art, according to the technical solutions and concepts described above, various corresponding changes and deformations can be made, and all such changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A foldable office desk convenient for transportation, characterized in that, it includes: A mounting plate frame (2) and universal wheels (1). Four groups of universal wheels (1) are rotatably provided at the lower part of the mounting plate frame (2). Every two universal wheels (1) form a group, and there are eight universal wheels (1); A folding mechanism (3). A folding mechanism (3) convenient for people to work is provided on the mounting plate frame (2); The folding mechanism (3) includes: A first lead screw (31). The first lead screw (31) is rotatably provided at the rear side and slightly to the left inside the mounting plate frame (2); A first rotating rod (33). The first rotating rod (33) is provided at the rear side and left part inside the mounting plate frame (2); Folding table boards (32). Two folding table boards (32) convenient for people to work are rotatably provided on the first rotating rod (33); A rotating shaft (35). The rotating shaft (35) is rotatably provided at the rear side and slightly to the right at the bottom inside the mounting plate frame (2); A rotating handle (34). The rotating handle (34) is provided on the upper side of the rotating shaft (35); A first transmission belt (36). A first transmission belt (36) is wound around between the rotating shaft (35) and the first lead screw (31) through transmission wheels; A first guide rod (37). The first guide rod (37) is provided at the rear side and slightly to the left at the bottom inside the mounting plate frame (2); A moving block (38). The moving block (38) is slidably provided on the first guide rod (37), and the moving block (38) is threadedly connected to the first lead screw (31); An arc-shaped top block (39). The arc-shaped top block (39) is provided on the upper side of the moving block (38); A first pulling rope (310). The first pulling rope (310) is provided on both the front and rear sides of the moving block (38), and the first pulling rope (310) is connected to the folding table board (32) on the same side; A clamping mechanism (4). A clamping mechanism (4) for clamping the folding table board (32) is provided on the mounting plate frame (2).

2. The foldable office desk convenient for transportation according to claim 1, characterized in that, the folding mechanism (3) further includes: A first sliding rod (311). The first sliding rod (311) is slidably provided at the lower left side of the rear folding table board (32); A first spring (312). A first spring (312) is connected between the first sliding rod (311) and the rear folding table board (32), and the first spring (312) is wound around the first sliding rod (311).

3. The foldable office desk convenient for transportation according to claim 2, characterized in that, the clamping mechanism (4) includes: Clamping blocks (42). The clamping blocks (42) for clamping the folding table board (32) are slidably provided at the front side and left part inside the mounting plate frame (2), and the clamping blocks (42) are also slidably provided at the rear side and right part of the mounting plate frame (2). There are two clamping blocks (42); Second sliding rods (43). Second sliding rods (43) are provided inside both clamping blocks (42), and the second sliding rods (43) are slidably connected to the mounting plate frame (2); Pushing blocks (41). Pushing blocks (41) are provided on the outer sides of both clamping blocks (42), and the pushing blocks (41) are slidably connected to the mounting plate frame (2); Second springs (44). Second springs (44) are connected between both clamping blocks (42) and the mounting plate frame (2), and the second springs (44) are wound around the second sliding rods (43).

4. A foldable desk convenient for transportation according to claim 3, characterized in that, it further includes a lifting and lowering mechanism (5) for improving people's work efficiency, and the lifting and lowering mechanism (5) includes: A second lead screw (53) is rotatably provided at the left rear side inside the mounting plate frame (2). A second transmission belt (51) is wound around the first lead screw (31) and the second lead screw (53) through transmission wheels. An arc-shaped vision-blocking plate (52) is threadedly provided on the second lead screw (53), and the arc-shaped vision-blocking plate (52) is slidably connected to the mounting plate frame (2). Guide blocks (54) are provided at the rear left side of the mounting plate frame (2) and also at the left rear side of the rear part of the mounting plate frame (2). There are two guide blocks (54), and the arc-shaped vision-blocking plate (52) is slidably connected to the guide blocks (54).

5. A foldable desk convenient for transportation according to claim 4, characterized in that, it further includes a placing mechanism (6) for placing items, and the placing mechanism (6) includes: Second rotating rods (61) are rotatably provided at the front left side of the lower part of the mounting plate frame (2) and also at the right rear side of the lower part of the rear of the mounting plate frame (2). There are two second rotating rods (61). Placing plates (62) are provided on both of the two second rotating rods (61). Third rotating rods (63) are provided on both sides of the placing plate (62). There are four third rotating rods (63). Limiting plates (65) are rotatably provided on the third rotating rods (63). There are four limiting plates (65). Second guide rods (612) are provided at the left rear side inside the mounting plate frame (2) and also at the rear left side inside the mounting plate frame (2). There are two second guide rods (612). Pulling blocks (69) are slidably provided on both of the two second guide rods (612). Pressing blocks (66) are slidably provided on both of the two second guide rods (612), and the pressing blocks (66) are connected to the arc-shaped vision-blocking plate (52). Second pulling ropes (64) are provided on both of the two placing plates (62). Guide wheels (67) are rotatably provided at the front and rear sides of the left part inside the mounting plate frame (2) and also at the left and right sides of the rear part inside the mounting plate frame (2). There are four guide wheels (67), and the second pulling ropes (64) sequentially bypass the two guide wheels (67) on the same side and are connected to the pulling blocks (69) on the same side. Third springs (68) are connected between the two pulling blocks (69) and the mounting plate frame (2), and the third springs (68) are wound around the second guide rods (612). Fourth springs (610) are connected between the two pressing blocks (66) and the pulling blocks (69) on the same side, and the fourth springs (610) are wound around the second guide rods (612). A torsion spring (611), a torsion spring (611) is connected between the third rotating rod (63) and the limiting plate (65) on the same side. There are four torsion springs (611), and the torsion springs (611) are wound around the third rotating rod (63).

6. A foldable desk for easy transportation according to claim 5, characterized in that, it further comprises a placing mechanism (7) for placing documents, and the placing mechanism (7) includes: A third sliding rod (72), the third sliding rod (72) is provided at the upper front side of the left folding table board (32); A wedge block (71), the wedge block (71) is slidably provided on the third sliding rod (72); A fifth spring (73), a fifth spring (73) is connected between the wedge block (71) and the left folding table board (32), and the fifth spring (73) is wound around the third sliding rod (72); A pushing wheel (74), the pushing wheel (74) is rotatably provided at the rear side of the wedge block (71); A placing rack (75), the placing rack (75) is rotatably provided at the front side of the left folding table board (32), and the pushing wheel (74) is slidably connected to the placing rack (75).

7. A foldable desk for easy transportation according to claim 6, characterized in that, it further comprises a clamping mechanism (8) for placing water cups, and the clamping mechanism (8) includes: A heating block (81), the heating block (81) is provided at the upper right side of the rear folding table board (32); A fourth sliding rod (82), three fourth sliding rods (82) are slidably provided on the left and right sides inside the rear folding table board (32), and there are six fourth sliding rods (82); A clamping block (83), a clamping block (83) is connected between every three adjacent fourth sliding rods (82); A sixth spring (84), three sixth springs (84) are connected between the clamping block (83) and the right folding table board (32), there are six sixth springs (84), and the sixth springs (84) are wound around the fourth sliding rods (82).

8. A foldable desk for easy transportation according to claim 7, characterized in that, a round hole is opened on the upper right side of the rear folding table board (32).

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