Horizontal and vertical dual-purpose easel convenient for conversion operation

Abstract

The utility model discloses a horizontal and vertical dual-purpose easel convenient for conversion operation, which comprises a base and a support plate for supporting a drawing board, the support plate is provided with a clamp component for fixing the drawing board on the support plate, the support plate is mounted on the base through a lifting mechanism, the support plate is rotatably mounted at the upper end of the lifting mechanism, and the clamp component is arranged on the support plate. An angle locking assembly used for locking the angle between the supporting plate and the lifting mechanism is arranged between the lifting mechanism and the supporting plate, and by changing the included angle between the supporting plate and the lifting mechanism, the supporting plate can be switched between the vertical placing mode and the horizontal placing mode. By means of the lifting mechanism and the angle locking assembly, the height of the supporting plate can be adjusted, the vertical placing mode and the horizontal placing mode can be rapidly switched, the structure is simple, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to easel technical field, especially a flat and vertical dual -purpose easel convenient to change operation. BACKGROUND

[0002] Easel has important role to art worker. Art worker is drawing, usually places drawing board on easel and supports, and in the process of drawing, in order to facilitate operation, need to adjust the height and angle of easel properly to meet the needs of the artist.

[0003] Such as the China patent of the announcement number CN215226079U discloses an art easel, including two connecting rods, the inner side fixed mounting of two connecting rods has the placement rod, the upper end surface fixed mounting of placement rod has the fixed rod, the front end rotationally connected with the lamp plate of fixed rod, the front end fixed mounting of lamp plate has LED lamp, the side fixed mounting of lamp plate has the second key.

[0004] The above-mentioned easel solves some defects existing in the prior art, but in actual use, still exist some deficiencies, for example:

[0005] The above-mentioned easel is single function, can only stand the drawing board, can not be according to the demand of the painter and draw the drawing board.

[0006] Therefore, a flat and vertical dual-purpose easel convenient to change operation is provided. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a flat and vertical dual-purpose easel convenient to change operation, to solve or at least alleviate one or more of the above-mentioned problems and other aspects in the prior art.

[0008] In order to achieve the above-mentioned purpose, the main technical scheme of the utility model comprises:

[0009] A flat and vertical dual-purpose easel convenient to change operation, including base, the base and the support plate for supporting drawing board, the support plate is provided with clamp assembly for fixing drawing board on the support plate, the support plate is installed on the base through the lifting mechanism, the support plate is rotationally installed on the upper end of the lifting mechanism, the angle locking assembly for locking the angle between support plate and the lifting mechanism is arranged between the lifting mechanism and the support plate, by changing the included angle between the support plate and the lifting mechanism, the support plate can switch two modes of standing and laying.

[0010] In the horizontal and vertical dual-purpose easel convenient to convert operation according to the utility model, the lifting mechanism includes square rod and square tube, one side of the support plate is hinged to the top of the square tube, the square rod is fixedly connected to the top of the base, the square tube is slidably arranged on the square rod, the top of the square rod is provided with an internal thread hole, a horizontal plate is fixedly connected to the inside of the square tube, a lead screw is arranged in the inside of the square tube, the upper end of the lead screw is rotatably installed on the horizontal plate through a bearing, the lower end of the lead screw is threadedly rotatably installed in the internal thread hole, the inside of the square tube is provided with a driving assembly for driving the rotation of the lead screw.

[0011] In the horizontal and vertical dual-purpose easel convenient to convert operation according to the utility model, the driving assembly includes first bevel gear and second bevel gear, the first bevel gear is fixedly connected to the top of the lead screw, the second bevel gear is rotatably installed in the inside of the square tube through a rotating shaft, the second bevel gear is engaged with the first bevel gear, one end of the rotating shaft is fixedly connected with a handle.

[0012] In the horizontal and vertical dual-purpose easel convenient to convert operation according to the utility model, the angle locking assembly includes first connecting rod, second connecting rod and first handle bolt, one end of the first connecting rod is hinged to one side of the support plate, one end of the second connecting rod is hinged to one side of the square tube, a threaded hole is formed in the end of the first connecting rod away from the support plate, a round hole is formed in the end of the second connecting rod away from the square tube, one end of the first handle bolt is threadedly installed in the threaded hole after penetrating through the round hole, the first handle bolt can be used to fixedly connect the first connecting rod and the second connecting rod by being screwed.

[0013] In the horizontal and vertical dual-purpose easel convenient to convert operation according to the utility model, the clamp assembly is provided with two, two clamp assemblies are arranged at the upper end and the lower end of the support plate respectively, two groups of clamp assemblies all include strip-shaped hole, concave sliding slot, pressing plate, second handle screw and square nut, the strip-shaped hole and the concave sliding slot are both formed in the support plate, the strip-shaped hole is communicated with the concave sliding slot, the square nut is slidably arranged in the concave sliding slot, the pressing plate is slidably arranged on one side of the support plate, one end of the second handle screw is rotatably penetrated through the pressing plate and the strip-shaped hole and then extends into the concave sliding slot to be threadedly connected with the square nut, the second handle screw can be fixed on the support plate by being screwed.

[0014] In the horizontal and vertical dual-purpose easel convenient to convert operation according to the utility model, a guide waist hole is formed in the support plate, the end of the second handle screw is fixedly connected with a limiting sliding block, the limiting sliding block is slidably arranged in the guide waist hole.

[0015] In the horizontal-vertical dual-purpose easel convenient to switch operation according to the utility model, the self-locking universal wheel is fixedly installed at the bottom of the base.

[0016] The utility model at least has the following beneficial effects:

[0017] The utility model discloses the lifting mechanism and angle locking assembly can realize the height adjustment of support plate and the quick switching of vertical mode and horizontal mode, and the structure is simple, convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0019] Figure 1 It is the structure schematic view of the support plate of the utility model when horizontal laying;

[0020] Figure 2 It is the structure schematic view of the support plate of the utility model when vertical laying one;

[0021] Figure 3 It is the structure schematic view of the support plate of the utility model when vertical laying two;

[0022] Figure 4 It is the cross section structure schematic view of the lifting mechanism of the utility model;

[0023] Figure 5 It is the enlarged structure schematic view of A in Figure 2

[0024] Figure 6 It is the enlarged structure schematic view of B in Figure 3

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, base;101, self-locking universal wheel;2, support plate;201, strip hole;202, guide waist hole;203, concave sliding slot;204, pressing plate;205, limit sliding block;206, second handle screw;207, square nut;3, lifting mechanism;301, square bar;3011, internal thread hole;3012, reinforcing rib;302, square tube;304, cross plate;305, first bevel gear;306, second bevel gear;307, handle;4, angle locking assembly;401, first connecting rod;402, second connecting rod;403, first handle bolt. DETAILED DESCRIPTION

[0027] ​​The embodiments of the present application will be described in detail below with the accompanying drawings and embodiments, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0028] Please refer to Figures 1 to 6 The embodiment provides a horizontal-vertical dual-purpose easel convenient for switching operation, which comprises a base 1, a support plate 2 for supporting a drawing board, a clamp assembly for fixing the drawing board on the support plate 2 is arranged on the support plate 2, the support plate 2 is installed on the base 1 through a lifting mechanism 3, the support plate 2 is rotatably installed on the upper end of the lifting mechanism 3, an angle locking assembly 4 for locking the angle between the support plate 2 and the lifting mechanism 3 is arranged between the lifting mechanism 3 and the support plate 2, the support plate 2 can be switched between vertical placement and horizontal placement by changing the included angle between the support plate 2 and the lifting mechanism 3.

[0029] The lifting mechanism 3 and the angle locking assembly 4 can realize height adjustment of the support plate 2 and quick switching between vertical placement mode and horizontal placement mode, so as to adapt to the needs of different users.

[0030] Specifically, in the embodiment, the lifting mechanism 3 comprises a square rod 301 and a square tube 302, one side of the support plate 2 is hingedly connected to the top of the square tube 302, the square rod 301 is fixedly connected to the top of the base 1, the square tube 302 is slidably sleeved on the square rod 301, the top of the square rod 301 is provided with an internal thread hole 3011, a horizontal plate 304 is fixedly connected to the inside of the square tube 302, a lead screw 303 is arranged in the square tube 302, the upper end of the lead screw 303 is rotatably installed on the horizontal plate 304 through a bearing, the lower end of the lead screw 303 is threadedly rotatably installed in the internal thread hole 3011, a driving assembly for driving the lead screw 303 to rotate is arranged at the upper end of the inside of the square tube 302, the driving assembly comprises a first bevel gear 305 and a second bevel gear 306, the first bevel gear 305 is fixedly connected to the top of the lead screw 303, the second bevel gear 306 is rotatably installed in the inside of the square tube 302 through a rotating shaft, the second bevel gear 306 is engaged with the first bevel gear 305, and one end of the rotating shaft is fixedly connected with a handle 307.

[0031] By adopting the above technical scheme, when the height of the support plate 2 needs to be adjusted, the handle 307 is only rotated to drive the second bevel gear 306 to rotate, the first bevel gear 305 is fixedly connected with the lead screw 303 due to the meshing of the second bevel gear 306 and the first bevel gear 305, so as to drive the lead screw 303 to rotate, the rotating lead screw 303 can move upwards or downwards along the length direction of the internal threaded hole 3011 in the square rod 301, the square tube 302 can move upwards or downwards along the length direction of the square rod 301 due to the rotating mounting of the lead screw 303 on the square tube 302 through the bearing, and then the height adjustment of the support plate 2 is realized.

[0032] Specifically, in the embodiment, the angle locking assembly 4 includes a first connecting rod 401, a second connecting rod 402 and a first handle bolt 403, one end of the first connecting rod 401 is hinged to one side of the support plate 2, one end of the second connecting rod 402 is hinged to one side of the square tube 302, a threaded hole is formed in the end of the first connecting rod 401 away from the support plate 2, a circular hole is formed in the end of the second connecting rod 402 away from the square tube 302, one end of the first handle bolt 403 penetrates through the circular hole and is threadedly mounted in the threaded hole, and the first handle bolt 403 can be screwed to fixedly connect the first connecting rod 401 and the second connecting rod 402.

[0033] By adopting the above technical scheme, when the angle between the support plate 2 and the lifting mechanism 3 needs to be adjusted, the first handle bolt 403 is loosened first so that the first connecting rod 401 and the second connecting rod 402 can rotate relative to each other, then the support plate 2 is rotated, the first handle bolt 403 is tightened after the support plate 2 is rotated to the required angle, so that the first connecting rod 401 and the second connecting rod 402 are fixed, and at this time the angle adjustment of the support plate 2 is completed, and when the support plate 2 and the lifting mechanism 3 are perpendicular to each other, the support plate 2 is placed horizontally.

[0034] Specifically, in the embodiment, two clamp assemblies are arranged, and the two clamp assemblies are arranged at the upper end and the lower end of the support plate 2 respectively, and each clamp assembly includes a strip-shaped hole 201, a concave sliding groove 203, a pressing plate 204, a second handle screw 206 and a square nut 207, the strip-shaped hole 201 and the concave sliding groove 203 are formed in the support plate 2, the strip-shaped hole 201 is in communication with the concave sliding groove 203, the square nut 207 is slidingly arranged in the concave sliding groove 203, the pressing plate 204 is slidingly arranged on one side of the support plate 2, one end of the second handle screw 206 penetrates through the pressing plate 204 and the strip-shaped hole 201 and extends into the concave sliding groove 203 to be threadedly connected with the square nut 207, and the second handle screw 206 can be fixed on the support plate 2 by screwing the second handle screw 206.

[0035] By adopting the above technical scheme, the second handle screw 206 at the lower end of the support plate 2 is loosened first, so that the pressing plate 204 can slide on the support plate 2, then the position of the pressing plate 204 at the lower end of the support plate 2 is adjusted first according to the requirement, then the second handle screw 206 at the lower end of the support plate 2 is tightened, then the drawing board is placed on the support plate 2, then the second handle screw 206 at the upper end of the support plate 2 is loosened, the pressing plate 204 at the upper end of the support plate 2 is slid downward and is pressed against the top of the drawing board, then the second handle screw 206 on the support plate 2 is tightened, and it needs to be noted that the square nut 207 can slide along the length direction of the concave sliding groove 203, but cannot rotate in the concave sliding groove 203.

[0036] Specifically, the guide waist hole 202 is formed on the support plate 2, the end of the second handle screw 206 is fixedly connected with the limiting sliding block 205, and the limiting sliding block 205 is slidingly arranged in the guide waist hole 202, so that the stability of the pressing plate 204 when sliding on the support plate 2 is improved.

[0037] Specifically, in order to facilitate movement, the bottom of the base 1 is fixedly installed with self-locking universal wheels 101 at four corners.

[0038] In order to improve the stability of the square rod 301, a plurality of reinforcing ribs 3012 are fixedly connected between the lower end of the square rod 301 and the base 1.

[0039] In order to facilitate understanding of the above technical scheme of the present application, the working principle or operation mode of the present application in the actual process is described in detail below.

[0040] Working principle: in use, the handle 307 drives the second bevel gear 306 to rotate, because the second bevel gear 306 is engaged with the first bevel gear 305, and the first bevel gear 305 is fixedly connected with the lead screw 303, so as to drive the lead screw 303 to rotate, the rotating lead screw 303 can move upwards or downwards along the length direction of the internal threaded hole 3011 in the square rod 301, because the lead screw 303 is rotatably installed on the square tube 302 through the bearing, therefore the square tube 302 can move upwards or downwards along the length direction of the square rod 301 with the lead screw 303, thereby realizing the adjustment of the height of the supporting plate 2, when it is needed to adjust the angle between the supporting plate 2 and the lifting mechanism 3, the first handle bolt 403 is loosened first, so that the first connecting rod 401 and the second connecting rod 402 can relatively rotate, then the supporting plate 2 is rotated, when the supporting plate 2 is rotated to the required angle, the first handle bolt 403 is tightened, so that the first connecting rod 401 and the second connecting rod 402 are fixed, at this time, the adjustment of the angle of the supporting plate 2 can be completed, when the supporting plate 2 and the lifting mechanism 3 are perpendicular to each other, the horizontal placement of the supporting plate 2 is realized, when the drawing board is installed, the second handle screw 206 at the lower end of the supporting plate 2 is loosened first, so that the pressing plate 204 can slide on the supporting plate 2, then the position of the pressing plate 204 at the lower end of the supporting plate 2 is adjusted according to the requirement, then the second handle screw 206 at the lower end of the supporting plate 2 is tightened, then the drawing board is placed on the supporting plate 2, then the second handle screw 206 at the upper end of the supporting plate 2 is loosened, the pressing plate 204 at the upper end of the supporting plate 2 is slid downwards and is pressed against the top of the drawing board, then the second handle screw 206 at the upper end of the supporting plate 2 is tightened.

[0041] The above description shows and describes several preferred embodiments of the utility model, but as described above, it should be understood that the utility model is not limited to the forms disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified by the above teachings or related technologies or knowledge within the scope of the utility model concept described herein. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the utility model claims attached herein.

Claims

1. A horizontal and vertical dual-purpose easel that is easy to convert, characterized in that: The drawing board comprises a base, a support plate for supporting the drawing board, a clamp assembly for fixing the drawing board on the support plate is provided on the support plate, the support plate is mounted on the base through a lifting mechanism, the support plate is rotatably mounted on the upper end of the lifting mechanism, an angle locking assembly for locking the angle between the support plate and the lifting mechanism is provided between the lifting mechanism and the support plate, and the support plate can be switched between upright and horizontal modes by changing the angle between the support plate and the lifting mechanism.

2. The easel for easy conversion between horizontal and vertical use according to claim 1, characterized in that: The lifting mechanism includes a square rod and a square tube. One side of the support plate is hinged to the top of the square tube. The square rod is fixedly connected to the top of the base. The square tube is slidably mounted on the square rod. An internal threaded hole is provided on the top of the square rod. A horizontal plate is fixedly connected to the inside of the square tube. A screw rod is provided inside the square tube. The upper end of the screw rod is rotatably mounted on the horizontal plate through a bearing. The lower end of the screw rod is threaded and rotatably mounted in the internal threaded hole. A driving component for driving the screw rod to rotate is provided at the upper end of the inner part of the square tube.

3. The easel for easy conversion between horizontal and vertical use according to claim 2, characterized in that: The driving assembly includes a first bevel gear and a second bevel gear. The first bevel gear is fixedly connected to the top of the screw rod, and the second bevel gear is rotatably installed inside the square tube through a rotating shaft. The second bevel gear is meshed with the first bevel gear, and one end of the rotating shaft is fixedly connected to a handle.

4. The easel for easy conversion between horizontal and vertical use according to claim 3, characterized in that: The angle locking assembly includes a first connecting rod, a second connecting rod and a first handle bolt, one end of the first connecting rod is hinged to one side of the support plate, one end of the second connecting rod is hinged to one side of the square tube, a threaded hole is provided at the end of the first connecting rod away from the support plate, and a round hole is provided at the end of the second connecting rod away from the square tube. One end of the first handle bolt passes through the round hole and is threadedly installed in the threaded hole. By tightening the first handle bolt, the first connecting rod and the second connecting rod can be fixedly connected.

5. The easel for easy conversion between horizontal and vertical use according to claim 1, characterized in that: There are two clamp assemblies, and the two clamp assemblies are respectively arranged at the upper end and the lower end of the support plate. The two groups of clamp assemblies each include a strip hole, a concave slide groove, a pressure plate, a second handle screw and a square nut. The strip hole and the concave slide groove are both opened on the support plate, the strip hole is connected with the concave slide groove, the square nut is slidably arranged in the concave slide groove, and the pressure plate is slidably arranged on one side of the support plate. One end of the second handle screw is rotated through the pressure plate and the strip hole and then extends into the concave slide groove and is threadedly connected to the square nut. By tightening the second handle screw, the second handle screw can be fixed to the support plate.

6. The easel for easy conversion between horizontal and vertical use according to claim 5, characterized in that: A guide waist hole is provided on the support plate, and the end of the second handle screw is fixedly connected to a limiting slider, and the limiting slider is slidably arranged in the guide waist hole.

7. A horizontal and vertical dual-purpose easel that is easy to convert according to any one of claims 1 to 6, characterized in that: Self-locking universal wheels are fixedly installed at the four corners of the bottom of the base.

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