CN211364075U

CN211364075U - Adjustable mechanical drawing display device

Info

Publication number: CN211364075U
Application number: CN201922448457.XU
Authority: CN
Inventors: 陈俐
Original assignee: Gansu Institute of Mechanical and Electrical Engineering
Current assignee: Gansu Institute of Mechanical and Electrical Engineering
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-28
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a mechanical drawing display device with adjustable, including supporting mechanism and projecting mechanism, the supporting mechanism passes through cable conductor and projecting mechanism swing joint, the supporting mechanism includes bracing piece and supporting seat, supporting seat top surface central point puts the vertical bracing piece that is fixed with of department, bracing piece outer wall central point puts the department and rotates and be connected with the rotation seat No. one, No. one the rotation seat outer wall is fixed with the dwang No. one, a dwang top is fixed with the camera No. one. The utility model discloses in, the user makes a rack move downwards through pressing the briquetting downwards and drives the gear rotation to the gear drives No. two rack plate rebound, from making whole set dish rebound, makes to remove wheel and blackboard direct contact, adjusts the position of No. two cameras through removing the wheel and can enlarge to a certain part of drawing, makes the image clearer, has guaranteed the teaching quality.

Description

Adjustable mechanical drawing display device

Technical Field

The utility model relates to a drawing display device technical field, concretely relates to mechanical drawing display device with adjustable.

Background

Mechanical drawing is a subject which exactly represents the structural shape, the size, the working principle and the technical requirements of machinery by using a figure, and is one of basic necessary courses which are set by machinery and related majors in most colleges and universities, and teachers in any class often need to use drawings to explain methods and principles of students.

The current mechanical drawing show often is that the mr utilizes the projecting apparatus to put in on the blackboard, and the drawing of putting in like this sits the comparison fuzzy that the college at the back row seen, influences the quality of listening to lessons, needs enlarge when explaining to a part at the mr, then can make the projected drawing more fuzzy, influences the teaching quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve current mr when using the projecting apparatus to put in the drawing, can make the drawing fuzzy when enlargiing to certain part, influence the problem of teaching quality, provide a mechanical drawing display device with adjustable.

The purpose of the utility model can be realized by the following technical scheme:

an adjustable mechanical drawing display device comprises a supporting mechanism and a projection mechanism, wherein the supporting mechanism is connected with the projection mechanism through a cable, the supporting mechanism comprises a supporting rod and a supporting seat, the supporting rod is vertically fixed at the central position of the top surface of the supporting seat, a first rotating seat is rotatably connected at the central position of the outer wall of the supporting rod, a first rotating rod is fixed on the outer wall of the first rotating seat, a first camera is fixed at the end part of the first rotating rod, a second rotating seat is rotatably connected with the outer wall of the top end of the supporting rod, a second rotating rod is fixed on the outer wall of the second rotating seat, and the inner part of the second rotating rod is connected with the projection mechanism through the cable;

the projection mechanism comprises a bent pipe and a hollow pipe, the hollow pipe is connected with a second rotating rod through a cable, the hollow pipe is fixedly connected with the bent pipe close to the outer wall of the top end, the bottom end of the bent pipe is fixedly provided with a second camera, the bottom surface of the hollow pipe is fixedly provided with a pressing block, the central position of the bottom surface of the pressing block is fixedly provided with an inner pipe, the outer wall of one side of the inner pipe is provided with a rack groove, the position of the inner wall of the inner pipe, corresponding to the rack groove, is fixedly provided with a first rack plate, the outer wall of the inner pipe is sleeved with an outer pipe in a sliding manner, the position of the inner wall of the outer pipe, corresponding to the rack groove, is fixedly provided with a second rack plate, the bottom surface of the outer pipe is fixedly provided with a sleeve disc, the bottom end of the sleeve disc is an open flat cylindrical shell, the, the gear plate swing joint has the driven gear with a rack plate and No. two rack plate meshing respectively, bear the dish top surface and correspond inner tube bottom surface position department and be fixed with fixed spring, bear a plurality of removal wheels of the even swing joint in dish bottom surface.

Further lie in, the bracing piece is cylinder shell structure, just the height of bracing piece is 160cm, and through the structure that sets up the bracing piece highly for 160 cm's cylinder shell, can make when the line is walked to the bracing piece inside, can satisfy the use height in most classrooms again, makes things convenient for the user of service to adjust.

The outer pipe and the inner pipe are round pipes, the outer diameter of the inner pipe is smaller than the inner diameter of the outer pipe, the outer diameter of the inner pipe is set to be smaller than the inner diameter of the outer pipe, and the inner pipe can slide up and down inside the outer pipe.

Further lie in, the bottom outer wall of inner tube is fixed with the lug, just outer tube upper end opening end inner wall ring type is fixed with the bulge loop, is provided with the lug and is provided with the structure of ring type bulge loop at the inner wall of outer tube through the bottom outer wall at the inner tube, can make the inner tube can not make the inner tube break away from the outer tube under the spring action that receives fixed spring.

The bottom surface of the supporting seat is fixed with a rubber pad, and the whole display device can be better in stability due to the structure that the rubber pad is additionally arranged on the bottom surface of the supporting seat.

Further, the vertical distance from the top surface of the bearing disc to the outer wall of the bottom end of the movable wheel is smaller than the distance from the top surface of the sleeve disc to the bottom surface of the permanent magnet, so that the movable wheel does not contact with the blackboard under the condition that the pressing block is not pressed, and the movable wheel is only adsorbed and fixed through the permanent magnet, and therefore the firmness of the projection mechanism is guaranteed.

The utility model has the advantages that:

1. the supporting mechanism is arranged on the blackboard, a supporting rod is vertically fixed at the center of the top surface of a supporting seat of the supporting mechanism, a first rotating seat is rotatably connected at the center of the outer wall of the supporting rod, a first rotating rod is fixed on the outer wall of the first rotating seat, and a first camera is fixed at the end part of the first rotating rod;

2. the elbow with the second camera is fixed on the outer wall of the top end of the hollow pipe, the pressing block with the inner pipe fixed on the bottom surface is fixed on the bottom surface of the hollow pipe, the rack groove is formed in one side of the inner pipe, the first rack plate is fixed on the inner wall of the inner pipe, the outer wall of the inner pipe is in sliding connection with the inner wall of the outer pipe, the second rack plate is fixed on the position, corresponding to the rack groove, of the inner wall of the outer pipe, the gear plate is fixed on the top surface of the bearing disc, the gear is movably connected with the position, corresponding to the first rack plate and the second rack plate, of the gear, the first rack plate and the second rack plate are in meshing transmission, the spring structure is fixed on the position, corresponding to the bottom surface of the inner pipe, of the bearing disc, a user can press the pressing block downwards to enable the first gear to move downwards to drive the gear to rotate, and the gear drives the, from making whole set dish rebound for remove wheel and blackboard direct contact, adjust the position of No. two cameras through removing the wheel and can enlarge to a certain part of drawing, make the image clearer, guaranteed the teaching quality.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the display device of the present invention;

FIG. 2 is a schematic structural view of the supporting mechanism of the present invention;

FIG. 3 is a schematic structural diagram of a projection mechanism of the present invention;

FIG. 4 is an exploded view of the projection mechanism of the present invention;

fig. 5 is a cross-sectional view of the middle projection mechanism of the present invention.

In the figure: 100. a support mechanism; 110. a support bar; 120. a supporting seat; 130. a first rotating seat; 131. A first rotating rod; 132. a first camera; 140. a second rotating seat; 141. a second rotating rod; 200. a projection mechanism; 210. bending the pipe; 211. a second camera; 220. a hollow tube; 230. a pressing block; 240. An inner tube; 241. a rack slot; 242. a rack plate I; 250. an outer tube; 251. a second rack plate; 260. Sleeving a disc; 261. a permanent magnet; 270. a carrier tray; 271. fixing the spring; 272. a gear; 273. a gear plate; 274. a moving wheel; 300. a blackboard.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, an adjustable mechanical drawing display device includes a supporting mechanism 100 and a projection mechanism 200, the supporting mechanism 100 is connected with the projection mechanism 200 through a cable, the supporting mechanism 100 includes a supporting rod 110 and a supporting seat 120, the supporting rod 110 is vertically fixed at the central position of the top surface of the supporting seat 120, the central position of the outer wall of the supporting rod 110 is rotatably connected with a first rotating seat 130, the outer wall of the first rotating seat 130 is fixed with a first rotating rod 131, the end of the first rotating rod 131 is fixed with a first camera 132, the outer wall of the top end of the supporting rod 110 is rotatably connected with a second rotating seat 140, the outer wall of the second rotating seat 140 is fixed with a second rotating rod 141, and the inside of the second rotating rod 141 is connected with the projection mechanism;

the projection mechanism 200 comprises an elbow 210 and a hollow tube 220, the hollow tube 220 is connected with a second rotating rod 141 through a cable, the outer wall of the hollow tube 220 close to the top end is fixedly connected with the elbow 210, the bottom end of the elbow 210 is fixed with a second camera 211, the bottom surface of the hollow tube 220 is fixed with a pressing block 230, the central position of the bottom surface of the pressing block 230 is fixed with an inner tube 240, the outer wall of one side of the inner tube 240 is provided with a rack groove 241, the inner wall of the inner tube 240 is fixed with a first rack plate 242 at the position corresponding to the rack groove 241, the outer wall of the inner tube 240 is sleeved with an outer tube 250 in a sliding manner, the inner wall of the outer tube 250 is fixed with a second rack plate 251 at the position corresponding to the rack groove 241, the bottom surface of the outer tube 250 is fixed with a sleeve disk 260, the bottom end of the sleeve disk 260 is an open flat cylindrical shell, a permanent magnet 261 is fixed on the, the gear plate 273 is movably connected with a gear 272 which is respectively engaged with the first rack plate 242 and the second rack plate 251 for transmission, a fixed spring 271 is fixed at the position of the top surface of the carrier plate 270 corresponding to the bottom surface of the inner tube 240, and a plurality of movable wheels 274 are uniformly and movably connected with the bottom surface of the carrier plate 270.

The bracing piece 110 is cylinder shell structure, and the height of bracing piece 110 is 160cm, through the structure that sets up the cylinder casing that highly is 160cm with bracing piece 110, can make when the inside line of walking of bracing piece 110, can satisfy the use height in most classrooms again, make things convenient for the user to adjust, outer tube 250 and inner tube 240 are the pipe, and the external diameter of inner tube 240 is less than the internal diameter of outer tube 250, set the external diameter of inner tube 240 to the structure that is less than the internal diameter of outer tube 250, can make inner tube 240 slide from top to bottom inside going on of outer tube 250.

The bottom outer wall of inner tube 240 is fixed with the lug, and outer tube 250 upper end opening end inner wall ring type is fixed with the bulge loop, be provided with the lug and be provided with the structure of ring type bulge loop at the inner wall of outer tube 250 through the bottom outer wall at inner tube 240, can make inner tube 240 can not make inner tube 240 break away from outer tube 250 under the spring action that receives fixed spring 271, the bottom surface of supporting seat 120 is fixed with the rubber pad, through the structure of addding the rubber pad in the bottom surface of supporting seat 120, can make whole display device's stability better.

The vertical distance from the top surface of the bearing disc 270 to the outer wall of the bottom end of the movable wheel 274 is smaller than the distance from the inner top surface of the sleeve disc 260 to the bottom surface of the permanent magnet 261, so that the movable wheel 274 is not in contact with the blackboard 300 under the condition that the pressing block 230 is not pressed, and the permanent magnet 261 is only used for adsorption and fixation, thereby ensuring the firmness of the projection mechanism 200.

The working principle is as follows: when the blackboard eraser is used, a drawing to be displayed by a user is adsorbed on the blackboard 300 through a magnet, then the display device is placed in a place which does not affect the explanation of the user, the first camera 132 can record the whole drawing by adjusting the first rotating rod 131, the second rotating rod 141 is adjusted to enable the projection mechanism 200 adsorbed on the blackboard 300 through the permanent magnet 261 to have a sufficient moving range, when the user needs to explain a certain part on the drawing, the pressing block 230 can be pressed downwards to enable the inner tube 240 to move towards the inside of the outer tube 250, the first rack plate 242 moves downwards to transmit the gear 272, the gear 272 rotates to drive the outer tube 250 of which the inner wall is fixed with the second rack plate 251 to ascend, so that the sleeve disc 260 fixedly connected with the outer tube 250 is driven to move upwards, and the moving wheel 274 is in direct contact with the blackboard 300, the user can adjust the position of the second camera 211 through the sliding moving wheel 274, so that a certain part of the drawing is amplified and explained, and the whole operation process is simple and quick.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims

1. An adjustable mechanical drawing display device is characterized by comprising a supporting mechanism (100) and a projection mechanism (200), the supporting mechanism (100) is connected with the projection mechanism (200) through a cable, the supporting mechanism (100) comprises a supporting rod (110) and a supporting seat (120), a support rod (110) is vertically fixed at the center of the top surface of the support seat (120), a first rotating seat (130) is rotatably connected at the center of the outer wall of the supporting rod (110), a first rotating rod (131) is fixed on the outer wall of the first rotating seat (130), a first camera (132) is fixed at the end part of the first rotating rod (131), the outer wall of the top end of the supporting rod (110) is rotationally connected with a second rotating seat (140), a second rotating rod (141) is fixed on the outer wall of the second rotating seat (140), and the inside of the second rotating rod (141) is connected with the projection mechanism (200) through a cable;

projection mechanism (200) includes return bend (210) and hollow tube (220), hollow tube (220) are connected with No. two dwang (141) through the cable conductor, hollow tube (220) are close to top outer wall fixedly connected with return bend (210), return bend (210) bottom mounting has No. two camera (211), hollow tube (220) bottom surface is fixed with presses briquetting (230), press briquetting (230) bottom surface central point department of putting to be fixed with inner tube (240), rack groove (241) have been seted up to inner tube (240) one side outer wall, inner tube (240) inner wall corresponds rack groove (241) place position department and is fixed with a rack board (242), inner tube (240) outer wall sliding sleeve has outer tube (250), outer tube (250) inner wall corresponds rack groove (241) place position department and is fixed with No. two rack boards (251), outer tube (250) bottom surface is fixed with set dish (260), set dish (260) bottom is open-ended flat cylinder casing, the uncovered terminal surface of set dish (260) is fixed with permanent magnet (261), set dish (260) inside cup joints bears dish (270), bear dish (270) top surface in the middle of a rack board (242) and No. two rack boards (251) and be fixed with toothed plate (273), toothed plate (273) swing joint have respectively with a rack board (242) and No. two rack boards (251) meshing driven gear (272), bear dish (270) top surface and correspond inner tube (240) bottom surface position department and be fixed with fixed spring (271), bear a plurality of removal wheels (274) of the even swing joint of dish (270) bottom surface.

2. The adjustable mechanical drawing display device as claimed in claim 1, wherein the supporting rod (110) is a cylindrical shell structure, and the height of the supporting rod (110) is 160 cm.

3. The adjustable mechanical drawing display device according to claim 1, wherein the outer tube (250) and the inner tube (240) are both round tubes, and the outer diameter of the inner tube (240) is smaller than the inner diameter of the outer tube (250).

4. The adjustable mechanical drawing display device as claimed in claim 1, wherein the outer wall of the bottom end of the inner tube (240) is fixed with a projection, and the inner wall of the upper open end of the outer tube (250) is fixed with a convex ring in a ring shape.

5. The adjustable mechanical drawing display device as claimed in claim 1, wherein a rubber pad is fixed to the bottom surface of the supporting base (120).

6. The adjustable mechanical drawing display device as claimed in claim 1, wherein the vertical distance from the top surface of the carrying plate (270) to the outer wall of the bottom end of the moving wheel (274) is smaller than the distance from the top surface of the inner surface of the sleeve plate (260) to the bottom surface of the permanent magnet (261).