CN214008636U - Display screen for displaying directed acyclic graph - Google Patents
Display screen for displaying directed acyclic graph Download PDFInfo
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- CN214008636U CN214008636U CN202023154466.7U CN202023154466U CN214008636U CN 214008636 U CN214008636 U CN 214008636U CN 202023154466 U CN202023154466 U CN 202023154466U CN 214008636 U CN214008636 U CN 214008636U
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- display screen
- fixed frame
- rod
- directed acyclic
- screw
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Abstract
The utility model belongs to the technical field of the display screen, especially, there is display screen for acyclic graph show, to the problem that current display screen highly is not convenient for adjust, the following scheme is proposed at present, and it includes the display screen, one side fixed mounting of display screen has fixed frame, and fixed frame is bottom open-ended structure, and the through-hole has been seted up to one side of fixed frame, and the through-hole internal rotation is installed two-way screw rod, and the one end of two-way screw rod extends to outside fixed frame, and fixed mounting has rotatory piece, and the other end of two-way screw rod extends to fixed frame in, and rotates and install on one side inner wall of fixed frame, and two spiral shell boards have been cup jointed to the screw thread on the two-way screw rod, and the top central point of two spiral shell boards puts equal fixed mounting and has the leading wheel. The utility model discloses simple structure, reasonable in design, convenient operation can adjust the height of display screen according to actual need to guarantee the stability of display screen, improved the practicality, be favorable to people's use.
Description
Technical Field
The utility model relates to a display screen technical field especially relates to a display screen is used in show of directed acyclic graph.
Background
In mathematics, particularly graph theory and computer science, a directed acyclic graph refers to a loop-free directed graph, and if a directed graph cannot go from a certain vertex and go back to the point through a plurality of edges, the graph is a Directed Acyclic Graph (DAG), and in the teaching process, a teacher generally shows and explains the directed acyclic graph to a student through a display screen. But the height that present display screen height-fixing can not adjust the display screen according to actual need, and the practicality is not strong.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a display screen for displaying directed acyclic graphs.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a display screen for displaying directed acyclic graphs comprises a display screen, wherein a fixed frame is fixedly installed on one side of the display screen, the fixed frame is of a structure with an opening at the bottom, a through hole is formed in one side of the fixed frame, a bidirectional screw rod is rotatably installed in the through hole, one end of the bidirectional screw rod extends out of the fixed frame, a rotating block is fixedly installed on one end of the bidirectional screw rod, the other end of the bidirectional screw rod extends into the fixed frame and is rotatably installed on the inner wall of one side of the fixed frame, two screw plates are sleeved on the bidirectional screw rod in a threaded manner, guide wheels are fixedly installed at the central positions of the tops of the two screw plates, two telescopic rods are fixedly installed at the bottoms of the two screw plates, rectangular holes are formed in one sides of the four telescopic rods, mounting plates are fixedly installed on the inner walls of the two sides of the fixed frame and are located below the bidirectional screw rod, two hinged bases are fixedly installed at the bottoms of the two mounting plates, first connecting rods are rotatably installed on the four hinged bases, the bottom of four first connecting rods all rotates and installs the poker rod, all fixedly cup jointed the second connecting rod on four poker rods, and the bottom of four second connecting rods all rotates and installs the connecting block, and the bottom fixed mounting of four connecting blocks has same backup pad.
Preferably, the guide way has been seted up to the top inner wall of fixed frame, and two leading wheels are all rolled and are installed in the guide way.
Preferably, the four poke rods are respectively slidably mounted in the four rectangular holes.
Preferably, a square hole is formed in one side of the rotating block, and a sliding rod is slidably mounted in the square hole.
Preferably, both ends of the slide bar extend out of the square hole, and a clamping block is fixedly mounted at one end, close to the fixing frame, of the slide bar.
Preferably, one side of the fixed frame close to the rotating block is provided with a plurality of clamping grooves which are annularly and uniformly arranged by taking the two-way screw as a center, and the clamping grooves are matched with the clamping blocks.
In the utility model, when in use, the slide bar is pulled to drive the fixture block fixedly connected with the slide bar, so that the fixture block is moved out of the clamping groove, thereby the limit to the rotating block is removed, the rotating block is rotated to drive the bidirectional screw rod to rotate, the guide wheel is arranged in the guide groove in a rolling way, so that the guide wheel can only horizontally move along the guide groove, and the screw plate fixedly connected with the guide wheel can only horizontally move, because the two screw plates are sleeved on the bidirectional screw rod in a threaded way, the two screw plates can be driven to be away from each other along with the rotation of the bidirectional screw rod, because the telescopic rod is fixedly arranged at the bottom of the screw plates, the telescopic rod can be driven to move, because the poking rod is slidably arranged in the rectangular hole, and the rectangular hole is arranged on the telescopic rod, therefore, along with the movement of the telescopic rod, the poking rod can be driven to move downwards while moving horizontally, because of the connection relation between the poker rod, the second connecting rod, connecting block and the backup pad, along with the removal of poker rod, can extrude the connecting block through the second connecting rod, make the backup pad move down, land when the backup pad, can reverse make display screen rebound, when the display screen removed suitable position, the rotatory piece of stall, and promote the slide bar, drive the fixture block and remove, make in the fixture block inserts the draw-in groove, thereby restricted rotatory piece and rotated, fix the display screen firm at present height. The utility model discloses simple structure, reasonable in design, convenient operation can adjust the height of display screen according to actual need to guarantee the stability of display screen, improved the practicality, be favorable to people's use.
Drawings
Fig. 1 is a schematic structural view of a display screen for displaying directed acyclic graph according to the present invention;
fig. 2 is a schematic structural diagram of a portion a of fig. 1 of a display screen for displaying directed acyclic graph according to the present invention;
fig. 3 is a schematic structural diagram of a portion B of fig. 1 of a display screen for displaying directed acyclic graph according to the present invention.
In the figure: the device comprises a display screen 1, a fixing frame 2, a through hole 3, a bidirectional screw rod 4, a rotating block 5, a screw plate 6, a guide wheel 7, a guide groove 8, a telescopic rod 9, a rectangular hole 10, a mounting plate 11, a hinged seat 12, a first connecting rod 13, a poke rod 14, a second connecting rod 15, a connecting block 16, a supporting plate 17, a square hole 18, a sliding rod 19, a clamping block 20 and a clamping groove 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-3, a display screen for displaying directed acyclic graphs comprises a display screen 1, wherein a fixed frame 2 is fixedly installed on one side of the display screen 1, the fixed frame 2 is of a structure with an opening at the bottom, a through hole 3 is formed in one side of the fixed frame 2, a bidirectional screw 4 is rotatably installed in the through hole 3, one end of the bidirectional screw 4 extends out of the fixed frame 2, a rotating block 5 is fixedly installed on the fixed frame, the other end of the bidirectional screw 4 extends into the fixed frame 2 and is rotatably installed on the inner wall of one side of the fixed frame 2, two screw plates 6 are sleeved on the bidirectional screw 4 in a threaded manner, guide wheels 7 are fixedly installed at the central positions of the tops of the two screw plates 6, two telescopic rods 9 are fixedly installed at the bottoms of the two screw plates 6, rectangular holes 10 are formed in one sides of the four telescopic rods 9, mounting plates 11 are fixedly installed on the inner walls of the two sides of the fixed frame 2, and the mounting plates 11 are located below the bidirectional screw 4, the bottom of two mounting panels 11 all fixed mounting have two free bearings 12, all rotate on four free bearings 12 and install first connecting rod 13, and the bottom of four first connecting rods 13 all rotates and installs poker rod 14, all fixedly cup joints second connecting rod 15 on four poker rod 14, and the bottom of four second connecting rods 15 all rotates and installs connecting block 16, and the bottom fixed mounting of four connecting blocks 16 has same backup pad 17.
The utility model discloses in, guide way 8 has been seted up to the top inner wall of fixed frame 2, and two leading wheels 7 are all roll-mounted in guide way 8, and leading wheel 7 only can roll along 8 levels of guide way.
The utility model discloses in, four poker rods 14 are slidable mounting respectively in four rectangular holes 10, and four poker rods 14 can slide along four rectangular holes 10 respectively.
The utility model discloses in, square hole 18 has been seted up to one side of rotatory piece 5, and slidable mounting has slide bar 19 in the square hole 18, and slide bar 19 can be along the 18 horizontal slip in square hole.
The utility model discloses in, outside slide bar 19's both ends all extended to square hole 18, and slide bar 19 was close to the one end fixed mounting of fixed frame 2 and has fixture block 20, and slide bar 19 can drive fixture block 20 and remove.
The utility model discloses in, fixed frame 2 is close to one side of rotatory piece 5 and uses two-way screw rod 4 evenly to have seted up a plurality of draw-in grooves 21 as central annular, and draw-in groove 21 and fixture block 20 looks adaptation, and fixture block 20 can insert or shift out draw-in groove 21.
Example two
Referring to fig. 1-3, a display screen for displaying directed acyclic graphs comprises a display screen 1, wherein a fixed frame 2 is fixedly installed on one side of the display screen 1, the fixed frame 2 is of a structure with an opening at the bottom, a through hole 3 is formed in one side of the fixed frame 2, a bidirectional screw 4 is rotatably installed in the through hole 3, one end of the bidirectional screw 4 extends out of the fixed frame 2, a rotating block 5 is fixedly installed on the fixed frame, the other end of the bidirectional screw 4 extends into the fixed frame 2 and is rotatably installed on the inner wall of one side of the fixed frame 2, two screw plates 6 are sleeved on the bidirectional screw 4 in a threaded manner, guide wheels 7 are fixedly installed at the central positions of the tops of the two screw plates 6, two telescopic rods 9 are fixedly installed at the bottoms of the two screw plates 6, rectangular holes 10 are formed in one sides of the four telescopic rods 9, mounting plates 11 are fixedly installed on the inner walls of the two sides of the fixed frame 2, and the mounting plates 11 are located below the bidirectional screw 4, the bottom of two mounting panels 11 all fixed mounting have two free bearings 12, all rotate on four free bearings 12 and install first connecting rod 13, and the bottom of four first connecting rods 13 all rotates and installs poker rod 14, all fixedly cup joints second connecting rod 15 on four poker rod 14, and the bottom of four second connecting rods 15 all rotates and installs connecting block 16, and the bottom fixed mounting of four connecting blocks 16 has same backup pad 17.
The utility model discloses in, guide way 8 has been seted up to the top inner wall of fixed frame 2, and two leading wheels 7 are all roll-mounted in guide way 8, and leading wheel 7 only can roll along 8 levels of guide way.
The utility model discloses in, four poker rods 14 are slidable mounting respectively in four rectangular holes 10, and four poker rods 14 can slide along four rectangular holes 10 respectively.
The utility model discloses in, square hole 18 has been seted up to one side of rotatory piece 5, and slidable mounting has slide bar 19 in the square hole 18, and slide bar 19 can be along the 18 horizontal slip in square hole.
The utility model discloses in, outside slide bar 19's both ends all extended to square hole 18, and slide bar 19 was close to the one end fixed mounting of fixed frame 2 and has fixture block 20, and slide bar 19 can drive fixture block 20 and remove.
The utility model discloses in, fixed frame 2 is close to one side of rotatory piece 5 and uses two-way screw rod 4 evenly to have seted up a plurality of draw-in grooves 21 as central annular, and draw-in groove 21 and fixture block 20 looks adaptation, and fixture block 20 can insert or shift out draw-in groove 21.
In the utility model, when in use, the slide rod 19 is pulled to drive the fixture block 20 fixedly connected with the slide rod 19, so that the fixture block 20 is moved out of the clamping groove 21, thereby the limit to the rotary block 5 is removed, the rotary block 5 is rotated to drive the bidirectional screw 4 to rotate, because the guide wheel 7 is arranged in the guide groove 8 in a rolling way, the guide wheel 7 can only move horizontally along the guide groove 8, so that the screw plate 6 fixedly connected with the guide wheel 7 can only move horizontally, because the two screw plates 6 are all sleeved on the bidirectional screw 4 in a threaded way, the two screw plates 6 can be driven to move away from each other along with the rotation of the bidirectional screw 4, because the telescopic rod 9 is fixedly arranged at the bottom of the screw plate 6, the telescopic rod 9 can be driven to move, because the poking rod 14 is arranged in the rectangular hole 10 in a sliding way, and the rectangular hole 10 is arranged on the telescopic rod 9, therefore, along with the movement of the telescopic rod 9, the poking rod 14 can be driven to move downwards while moving horizontally, because of the connection relation between the poke rod 14, the second connecting rod 15, the connecting block 16 and the supporting plate 17, along with the movement of the poke rod 14, the connecting block 16 can be extruded through the second connecting rod 15, so that the supporting plate 17 moves downwards, when the supporting plate 17 lands, the display screen 1 can reversely move upwards, when the display screen 1 moves to a proper position, the rotating block 5 stops rotating, the sliding rod 19 is pushed, the clamping block 20 is driven to move, the clamping block 20 is inserted into the clamping groove 21, so that the rotation of the rotating block 5 is limited, and the display screen 1 is stably fixed at the current height. The utility model discloses simple structure, reasonable in design, convenient operation can adjust the height of display screen according to actual need to guarantee the stability of display screen, improved the practicality, be favorable to people's use.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A display screen for displaying directed acyclic graphs comprises a display screen (1) and is characterized in that a fixed frame (2) is fixedly installed on one side of the display screen (1), the fixed frame (2) is of a structure with an opening at the bottom, a through hole (3) is formed in one side of the fixed frame (2), a bidirectional screw (4) is rotatably installed in the through hole (3), one end of the bidirectional screw (4) extends out of the fixed frame (2), a rotating block (5) is fixedly installed, the other end of the bidirectional screw (4) extends into the fixed frame (2), the bidirectional screw is rotatably installed on the inner wall of one side of the fixed frame (2), two screw plates (6) are sleeved on the bidirectional screw (4) in a threaded manner, guide wheels (7) are fixedly installed at the center positions of the tops of the two screw plates (6), two telescopic rods (9) are fixedly installed at the bottoms of the two screw plates (6), rectangular holes (10) are formed in one sides of the four telescopic rods (9), the equal fixed mounting in both sides inner wall of fixed frame (2) has mounting panel (11), and mounting panel (11) are located the below of two-way screw rod (4), the equal fixed mounting in bottom of two mounting panels (11) has two free bearings (12), all rotate on four free bearings (12) and install first connecting rod (13), the bottom of four first connecting rods (13) is all rotated and is installed poker rod (14), all fixed second connecting rod (15) of having cup jointed on four poker rod (14), the bottom of four second connecting rods (15) is all rotated and is installed connecting block (16), the bottom fixed mounting of four connecting blocks (16) has same backup pad (17).
2. The display screen for displaying directed acyclic graph according to claim 1, wherein the top inner wall of the fixed frame (2) is provided with a guide groove (8), and the two guide wheels (7) are installed in the guide groove (8) in a rolling manner.
3. A display for displaying directed acyclic graph according to claim 1, wherein four poke rods (14) are slidably mounted in four rectangular holes (10), respectively.
4. The display screen for displaying directed acyclic graph according to claim 1, wherein one side of the rotating block (5) is opened with a square hole (18), and a sliding rod (19) is slidably mounted in the square hole (18).
5. The display screen for displaying directed acyclic graph according to claim 4, wherein both ends of the sliding rod (19) extend out of the square hole (18), and a fixture block (20) is fixedly installed at one end of the sliding rod (19) close to the fixed frame (2).
6. The display screen for displaying directed acyclic graph according to claim 1, wherein the side of the fixed frame (2) close to the rotating block (5) is uniformly provided with a plurality of slots (21) in a ring shape by taking the two-way screw rod (4) as a center, and the slots (21) are matched with the blocks (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023154466.7U CN214008636U (en) | 2020-12-24 | 2020-12-24 | Display screen for displaying directed acyclic graph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023154466.7U CN214008636U (en) | 2020-12-24 | 2020-12-24 | Display screen for displaying directed acyclic graph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214008636U true CN214008636U (en) | 2021-08-20 |
Family
ID=77290241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023154466.7U Active CN214008636U (en) | 2020-12-24 | 2020-12-24 | Display screen for displaying directed acyclic graph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214008636U (en) |
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2020
- 2020-12-24 CN CN202023154466.7U patent/CN214008636U/en active Active
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