CN115817060B

CN115817060B - Spraying board picture frame with pull page changing structure

Info

Publication number: CN115817060B
Application number: CN202211513541.5A
Authority: CN
Inventors: 徐震啸
Original assignee: Shuyang Fuhan Art Supplies Co ltd
Current assignee: Shuyang Fuhan Art Supplies Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-10-13
Anticipated expiration: 2042-11-29
Also published as: CN115817060A

Abstract

The application discloses a spray board picture frame with a drawing and page changing structure, which is applied to the field of spray board picture frames.

Description

Spraying board picture frame with pull page changing structure

Technical Field

The application relates to the field of spray board picture frames, in particular to a spray board picture frame with a drawing and page changing structure.

Background

The spraying board frame is a frame produced by taking the spraying board as a main material, different pigment patterns can be sprayed on the surface of the board according to the use requirement in the production process of the spraying board, and the spraying board has the characteristics of beautiful appearance, rich color, corrosion damage resistance and the like because the pigment patterns tightly and comprehensively wrap the board, so that the frame produced by the spraying board also has the advantages, and the spraying board frame is usually used for exhibition mounting of various paintings based on the characteristics.

The spraying board frame among the prior art receives its inner structure's influence, leads to the inside of single spraying board frame only to deposit a painting and demonstrate, and in the exhibition process of carrying out the painting, the limited showroom of area is interior the limited number of painting that demonstrates, leads to more outstanding painting unable comprehensive demonstrate, influences the bandwagon effect, if need demonstrate more painting, then need enlarge the exhibition area for the scene cost increases by a wide margin in the painting exhibition process.

Therefore, a painting board frame with a drawing and page changing structure is provided to solve some of the problems in the prior art.

Disclosure of Invention

The application aims to solve the problems that the display cost of the painting is improved due to the fact that only one painting can be displayed in the painting frame in the prior art, the number of the displayed painting in the unit area in the painting exhibition is limited, compared with the prior art, the painting frame with the drawing page-changing structure comprises a frame shell with a cuboid structure, a plurality of mutually stacked painting papers are placed in the frame shell, the painting is packaged in the middle position of the painting papers, a display window for displaying the internal painting of the painting papers is arranged on the front end wall of the frame shell, a flexible transparent plate is arranged in the display window, a supporting plate a for supporting the painting papers is arranged in the frame shell in a sliding mode, a plurality of supporting springs a which are longitudinally arranged are uniformly fixed at the edge positions of the upper side and the lower side of the back of the supporting plate a, and one end of the back of the supporting spring a is fixedly arranged on the back inner end wall of the frame shell;

the right end of the frame shell is fixedly communicated with a middle rotary drum which is vertically arranged, a winding roller which is vertically arranged is rotatably arranged at the middle position inside the middle rotary drum, a clamping plate which is obliquely arranged along the clockwise direction is fixedly arranged on the outer end wall of the winding roller, a wire roller is fixedly arranged at the upper end of the winding roller, a pull rope is fixedly connected to the outer end wall of the wire roller, the pull rope is wound on the outer end wall of the wire roller, one end of the pull rope, far away from the wire roller, movably penetrates through the outer side of the middle rotary drum and is fixedly connected with a pull ring, a spring is sleeved at the outer side of the lower end of the winding roller, and the inner end and the outer end of the spring are respectively fixedly connected with the outer end wall of the winding roller and the inner end wall of the middle rotary drum;

the right side of the front end wall of the frame shell is provided with a front bin which is vertically symmetrical, two front rollers which are horizontally symmetrical are rotatably arranged in the front bin, a front conveying belt is movably sleeved between the two front rollers, the back of the front conveying belt is attached to the drawing paper positioned on the front, a one-way transmission assembly a is arranged on the rotating shaft of one front roller, a transmission belt a is connected between the power input shaft of the one-way transmission assembly a and the winding roller in a transmission way, and the power output shaft of the one-way transmission assembly a is fixedly connected with the front rollers;

the sliding frame which is arranged in bilateral symmetry is vertically fixed on the end wall of the back face of the frame shell, a fixing frame is sleeved on the outer side of the sliding frame in a sliding mode, the top of the fixing frame is arranged to be of a through structure, and the bottom of the fixing frame is arranged to be of a closed structure.

The drawing paper carrying different paintings is orderly stacked right in front of the supporting plate a in the frame shell, the winding roller capable of realizing forward and backward rotation through pulling and releasing is arranged in the transfer cylinder on the right side of the frame shell, the unidirectional transmission of the unidirectional transmission assembly a is matched, when the winding roller is pulled to rotate clockwise, the front conveying belt can be driven to rotate clockwise synchronously, the drawing paper on the front side is conveyed to the inside of the transfer cylinder, the clamping plate is matched to grab and wind the drawing paper on the outer side of the winding roller, reverse rotation is provided by means of the accumulation force of the spring and the rebound in the subsequent releasing, the drawing paper wound on the outer side of the winding roller can be conveyed to the back of the supporting plate a, and the replacement operation of the drawing paper positioned right in front is realized.

Optionally, the inside of frame shell still slidable mounting has the backup pad b that sets up at backup pad a back, and backup pad b's front upper and lower both sides edge position department evenly is fixed with a plurality of vertical support springs b that set up, and support spring b's front one end fixed mounting is on the front inner end wall of frame shell.

Optionally, the middle positions of the end walls on the upper side and the lower side of the frame shell are provided with notches, the end walls on the upper side and the lower side of the supporting plate a and the supporting plate b are movably inserted into the notches, and C-shaped buckles movably clamped on the inner end walls on the left side and the right side of the notches are provided.

Optionally, offer on the left side end wall of frame shell with drawing paper size looks adaptation U type groove, and the spout of vertical setting has been seted up to the symmetry on the front and back inner end wall in U type groove, sliding fit has the picture peg with U type inslot size looks adaptation in the spout, evenly distributed has the anti-skidding line of grinding that transversely sets up on the left end wall of picture peg, the front edge position department of frame shell encircles and is fixed with the frame apron that is used for decorating, and the outside edge position of frame apron extends to the outside of frame shell.

Optionally, the inner end walls around the display window are provided with clamping grooves, the outer side dimension of the flexible transparent plate is larger than the inner dimension of the display window, and the edge positions of the flexible transparent plate are movably inserted in the clamping grooves.

Optionally, a transparent film bag with a size matched with the painting is fixedly inlaid in the middle position of the painting paper, and an opening with a size matched with the painting is formed in the right position of the back surface of the transparent film bag.

Optionally, the rear storehouse of symmetry about being provided with in the back end wall right side position department of frame shell, and the inside rotation in rear storehouse installs two rear rollers of bilateral symmetry setting, rear conveyer belt has been cup jointed in the activity between two rear rollers, and the front protrusion of rear conveyer belt sets up in the back inner end wall outside of frame shell, fixed mounting has reversing gear a on the rotation axis of one of them rear roller, and reversing gear a's outside meshing is connected with reversing gear b, install unidirectional transmission subassembly b on reversing gear b's the rotation axis, and unidirectional transmission subassembly b's power input shaft and the transmission of rolling up between the roller are connected with driving belt b, unidirectional transmission subassembly b's power output shaft and rear roller fixed connection.

Optionally, the front and back sides of the drawing paper are both provided with smooth structures, a plurality of vertically arranged anti-slip grinding lines are arranged at the edge positions of the upper side and the lower side of the front and back sides of the drawing paper, and a plurality of vertically arranged anti-slip grinding lines are also arranged on the outer end walls of the front conveying belt and the back conveying belt.

Optionally, one-way drive assembly a and one-way drive assembly b all include the power input shaft that is located the top and the power output shaft that is located the below, the bottom fixed mounting of power input shaft has the circle shell, and the inside rotation of circle shell install with power output shaft fixed connection's disc, the top of disc rotates and installs a plurality of movable teeth that encircle the power output shaft setting, install torsion spring on the rotation axis of movable teeth, movable teeth passes through torsion spring and disc elastic rotation and is connected, the top of disc still fixed mounting has the stopper that is used for restricting the unidirectional deflection of a plurality of movable teeth, encircle on the inner end wall of circle shell be fixed with the skewed tooth of a plurality of movable teeth looks adaptations.

Optionally, a guide bar protruding backwards is fixedly installed on the front inner end wall of the connection part of the display window and the transfer cylinder, the right end of the support plate b is provided with a circular arc structure bent backwards, and the right side of the back end wall of the support plate b is fixedly provided with a spring piece arranged on the left side of the circular arc structure.

Compared with the prior art, the application has the advantages that:

(1) The drawing paper carrying different paintings is orderly stacked right in front of the supporting plate a in the frame shell, the winding roller capable of realizing forward and backward rotation through pulling and releasing is arranged in the transfer cylinder on the right side of the frame shell, the unidirectional transmission of the unidirectional transmission assembly a is matched, when the winding roller is pulled to rotate clockwise, the front conveying belt can be driven to rotate clockwise synchronously, the drawing paper on the front side is conveyed to the inside of the transfer cylinder, the clamping plate is matched to grab and wind the drawing paper on the outer side of the winding roller, reverse rotation is provided by means of the accumulation force of the spring and the rebound in the subsequent releasing, the drawing paper wound on the outer side of the winding roller can be conveyed to the back of the supporting plate a, and the replacement operation of the drawing paper positioned right in front is realized.

(2) Through with backup pad b slidable mounting in the inside backup pad a's of frame shell rear to carry out elastic support with the help of supporting spring b, when the painting is carried to backup pad a rear, can the centre gripping between the back end wall of frame shell and backup pad b, carry out the centre gripping restriction to the painting that shifts backward, avoid its scattering to influence the device stability in use.

(3) Through seting up the notch in the upper and lower end wall intermediate position department of frame shell to set up the C type buckle with the interior end wall looks adaptation of notch left and right sides in the upper and lower both sides of backup pad a and backup pad b, with the help of the sliding fit between the interior end wall of C type buckle and notch left and right sides, be favorable to promoting backup pad a and backup pad b at the inside sliding stability of frame shell, avoid backup pad a and backup pad b to incline the card dead in the slip in-process effectively, promoted the stability of the device in the use to a certain extent.

(4) Through seting up U type groove on the left side end wall of frame shell to insert the inside of establishing at U type groove with the picture peg vertical slip, can make the right side of frame shell open through upwards sliding the picture peg, be favorable to the staff to the inside drawing paper of depositing of frame shell carry out nimble access, encircle the positive edge position department of fixing at the frame shell through with the frame apron, and extend the outside of edge apron to the frame shell outside, can shelter from the structure of the edge position of frame shell, be favorable to promoting the whole aesthetic property of device.

(5) Through set up the draw-in groove around on the inner end wall all around of show window to with flexible transparent plate slip grafting inside the draw-in groove, make the staff insert the drawing paper of stacking in the place ahead to backup pad a when, can push down flexible transparent plate backward, make flexible transparent plate slip deformation backward, and then promote backup pad a backward, provide sufficient space for the packing of drawing paper, promoted the convenience in the device use to a certain extent.

(6) Through inlay the intermediate position department at the drawing paper with transparent film bag to with the opening offer the back of transparent film bag and lean on right position department, make the staff insert the drawing to the transparent film bag inside through the opening, deposit the drawing with the help of transparent film bag, effectively reduce the drawing show in-process with external contact probability, be convenient for protect the drawing, and can effectively realize the nimble change of showing the drawing, promoted the flexibility in the device use to a certain extent, and to the protectiveness of drawing.

(7) Through rotating the rear roller and installing in the rear storehouse that sets up on the frame shell back end wall to cup joint the rear conveyer belt activity on two rear rollers that correspond about, with the help of unidirectional transmission subassembly b, and reversing gear a and reversing gear b's meshing switching-over, make the roller receive the stay cord pull in-process rear conveyer belt keep stopped state, the roller receives the clockwork spring to reset the drive anticlockwise rotation, when carrying the drawing paper of winding in its outside between frame shell back end wall and the backup pad b, can drive the rear conveyer belt rotation and carry the drawing paper that comes to left stability, be favorable to guaranteeing the drawing paper and carry to the backup pad b and the stability comprehensive between the frame shell back end wall.

(8) Through setting up the positive and negative two sides of drawing paper to smooth structure, be favorable to reducing the contact frictional resistance between two adjacent drawing papers, avoid appearing a plurality of drawing papers and together carry the problem, simultaneously, through be provided with leading conveyer belt, the anti-skidding line of rubbing of looks adaptation on the rear conveyor belt outer wall with the upper and lower both sides edge position department of the positive and negative two sides of drawing paper, be favorable to promoting the frictional resistance when contact between leading conveyer belt, rear conveyor belt and the drawing paper, and then ensure the stability in the drawing paper transportation removal process.

(9) Through installing the guide strip that is protruding backward on the front inner end wall of show window and transfer section of thick bamboo junction, can support the guide to the drawing paper to the inside in-process of transfer section of thick bamboo right side carrying, guarantee cardboard on the roller is to the stability that the drawing paper snatched, simultaneously, through setting up the right-hand member of backup pad b to the circular arc structure of backward bending, can carry the in-process to between backup pad b and the frame shell back end wall to the drawing paper on the roller and guide, the support of cooperation shell fragment, guarantee drawing paper gets into backup pad b back stability to guarantee the front stable laminating of drawing paper and rear-end conveyer belt that gets into, guaranteed the device's job stabilization to a certain extent.

Drawings

FIG. 1 is a split view of the present application;

FIG. 2 is a front perspective view of the present application;

FIG. 3 is a rear perspective view of the present application;

FIG. 4 is a top cross-sectional view of the present application;

FIG. 5 is a schematic diagram of the structure shown at A in FIG. 4;

FIG. 6 is a perspective view of the internal structure of the frame shell of the present application;

FIG. 7 is a top cross-sectional view of the present application when the drawing paper is wound up to the outside of the wind-up roller;

FIG. 8 is a front cross-sectional view of a display window of the present application;

FIG. 9 is a perspective view of the U-shaped channel and insert plate of the present application;

FIG. 10 is a rear perspective view of the drawing paper of the present application;

FIG. 11 is a perspective view of the internal structure of the drum, the front bin and the rear bin of the application;

FIG. 12 is an exploded view of the one-way drive assembly a of the present application;

FIG. 13 is a top view of the disk of the present application;

fig. 14 is a bottom view of the round shell of the present application.

The reference numerals in the figures illustrate:

1. a frame shell; 101. a display window; 102. a supporting plate a; 103. a supporting spring a; 104. a support plate b; 105. a support spring b; 106. a notch; 107. c-shaped buckle; 108. a U-shaped groove; 109. inserting plate; 2. drawing paper; 201. a transparent film bag; 202. an opening; 3. a middle drum; 301. a roller; 302. a clamping plate; 303. a wire roller; 304. a pull rope; 305. a pull ring; 306. a spring; 4. a front bin; 401. a front roller; 402. a front conveyor belt; 403. a unidirectional transmission assembly a; 404. a transmission belt a; 405. a guide bar; 5. a rear bin; 501. a rear roller; 502. a rear conveyor belt; 503. a reversing gear a; 504. a reversing gear b; 505. a unidirectional transmission component b; 506. a transmission belt b; 6. a carriage; 601. a fixing frame; 7. a round shell; 701. a disc; 702. a movable tooth; 703. a torsion spring; 704. a limiting block; 705. helical teeth.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present application are included in the protection scope of the present application.

Example 1:

the application discloses a spray board picture frame with a drawing and page changing structure, referring to fig. 1-14, which comprises a frame shell 1 with a cuboid structure, wherein a plurality of pieces of picture paper 2 stacked with each other are placed in the frame shell 1, pictures are packaged in the middle position of the picture paper 2, a display window 101 for displaying the pictures in the picture paper 2 is arranged on the front end wall of the frame shell 1, a flexible transparent plate is arranged in the display window 101, a supporting plate a102 for supporting the picture paper 2 is slidably arranged in the frame shell 1, a plurality of supporting springs a103 which are longitudinally arranged are uniformly fixed at the edge positions of the upper side and the lower side of the back of the supporting plate a102, and one end of the back of the supporting spring a103 is fixedly arranged on the inner end wall of the back of the frame shell 1;

the right end of the frame shell 1 is fixedly communicated with a middle rotary drum 3 which is vertically arranged, a vertically arranged winding roller 301 is rotatably arranged at the middle position inside the middle rotary drum 3, a clamping plate 302 which is obliquely arranged along the clockwise direction is fixedly arranged on the outer end wall of the winding roller 301, a wire roller 303 is fixedly arranged at the upper end of the winding roller 301, a pull rope 304 is fixedly connected to the outer end wall of the wire roller 303, the pull rope 304 is wound on the outer end wall of the wire roller 303, one end of the pull rope 304 far away from the wire roller 303 movably penetrates through the outer side of the middle rotary drum 3 and is fixedly connected with a pull ring 305, a spring 306 is sleeved on the outer side of the lower end of the winding roller 301, and the inner end and the outer end of the spring 306 are fixedly connected with the outer end wall of the winding roller 301 and the inner end wall of the middle rotary drum 3 respectively;

the right side position of the front end wall of the frame shell 1 is provided with a front bin 4 which is vertically symmetrical, two front rollers 401 which are horizontally symmetrical are rotatably arranged in the front bin 4, a front conveying belt 402 is movably sleeved between the two front rollers 401, the back surface of the front conveying belt 402 is attached to a drawing paper 2 positioned on the front, a unidirectional transmission assembly a403 is arranged on a rotating shaft of one front roller 401, a transmission belt a404 is connected between a power input shaft of the unidirectional transmission assembly a403 and a winding roller 301 in a transmission manner, and a power output shaft of the unidirectional transmission assembly a403 is fixedly connected with the front roller 401;

the sliding frame 6 which is arranged in bilateral symmetry is vertically fixed on the end wall of the back surface of the frame shell 1, a fixing frame 601 is sleeved on the outer side of the sliding frame 6 in a sliding mode, the top of the fixing frame 601 is of a through structure, and the bottom of the fixing frame 601 is of a closed structure.

Referring to fig. 7, when the device works, a worker stacks the drawing papers 2 with the drawing papers to be displayed together and clamps the drawing papers between the front end wall of the frame case 1 and the supporting plate a102, then the worker vertically fixes the fixing frame 601 on the wall and slidingly inserts the sliding frame 6 in the fixing frame 601, the fixing of the device is realized by means of the matching of the sliding frame 6 and the fixing frame 601, and the drawing papers 2 positioned right in front can be watched by the external worker through the flexible transparent plate arranged in the display window 101.

During the display process, when the painting in the front painting paper 2 is displayed for a period of time and then does not need to be displayed again, a worker can hold the pull ring 305 to pull the pull rope 304 outwards, the wire roller 303 is driven to rotate in the process that the pull rope 304 is pulled out, the winding roller 301 is driven to rotate clockwise, in the process, the spring 306 arranged at the lower end of the winding roller 301 is wound up and stores force, the front conveying belt 402 is driven to rotate clockwise by the front conveying roller 401 through the transmission of the transmission belt a404 and the unidirectional transmission of the unidirectional transmission component a403, the back surface of the front conveying belt 402 and the painting paper 2 positioned in front are kept in a tight contact state all the time by means of the elastic support of the support spring a103, and the painting paper 2 positioned in front is driven to move rightward by the friction force.

When the right end of the drawing paper 2 moves right to the inside of the transfer cylinder 3, the winding roller 301 drives the clamping plate 302 fixed at the outer side of the winding roller to synchronously rotate clockwise, the right end of the drawing paper 2 is received, the right end of the drawing paper 2 moving to the inside of the transfer cylinder 3 is inserted between the clamping plate 302 and the outer end wall of the winding roller 301, the drawing paper 2 positioned right ahead is gradually wound on the outer sides of the winding roller 301 and the clamping plate 302 under the rotating action brought by continuously pulling the pull rope 304, after the pull of the pull ring 305 is released, the winding roller 301 reversely rotates under the elastic reset action of the spring 306, the pulled pull rope 304 is wound on the outer side of the line roller 303 again, and in the overturning process of the winding roller 301, the front-end roller 401 does not receive the reverse transmission of the winding roller 301 due to the unidirectional transmission of the unidirectional transmission component a403, and the front-end conveyer belt 402 is kept in a static state.

The diameter of the middle rotary drum 3 is larger than the thickness of the frame shell 1, so that when the roller 301 rotates reversely, one end of the outer side of the drawing paper 2 wound on the outer side of the roller 301 can be driven to be smoothly inserted into the rear of the supporting plate a102, and as the drawing paper 2 positioned in front is firstly wound on the outer sides of the roller 301 and the clamping plate 302 in the drawing process, the drawing paper is input to the rear of the supporting plate a102 through the reverse rotation of the roller 301, the second drawing paper 2 can be displayed, and when the drawing paper 2 needs to be replaced again, the drawing and replacing operation of the drawing paper 2 is completed repeatedly.

Through pile up the drawing paper 2 that is loaded with different paintings in order in the frame shell 1 inside directly ahead of backup pad a102 to will realize the positive and negative rotatory roller 301 of realization through pull release and install in the interior of transfer cylinder 3 on frame shell 1 right side, the unidirectional transmission of cooperation unidirectional transmission subassembly a403 makes roller 301 pull clockwise when rotating, can drive leading conveyer belt 402 synchronous clockwise rotation, right transport to transfer cylinder 3 the drawing paper 2 that is located the front, the snatch of cooperation cardboard 302 is rolled up in roller 301 outside, the resilience when holding by spring 306 and follow-up release provides reverse rotation, can carry the drawing paper 2 that is rolled up in roller 301 outside to backup pad a 102's back, realize the change operation to the drawing paper 2 that is located the dead ahead, make the frame shell 1 inside in the application can place a plurality of paintings, and can carry out the flexibility in the flexible process of changing the different drawing papers 2 that carry on in the way of pull tab 305 according to the demand in the actual show, the flexibility in the use of the device has promoted effectively, the in-service process of using the convenience of the field of showing.

Referring to fig. 4 and 6, a support plate b104 disposed at the back of the support plate a102 is slidably mounted in the frame 1, a plurality of support springs b105 disposed longitudinally are uniformly fixed at the edges of the upper and lower sides of the front surface of the support plate b104, and one end of the front surface of the support spring b105 is fixedly mounted on the front inner end wall of the frame 1.

Referring to fig. 1 and 6, the middle positions of the upper and lower end walls of the frame shell 1 are provided with notches 106, the upper and lower end walls of the support plate a102 and the support plate b104 are movably inserted into the notches 106, and C-shaped buckles 107 movably clamped on the inner end walls of the left and right sides of the notches 106 are provided.

Referring to fig. 1, fig. 2 and fig. 9, a U-shaped groove 108 adapted to the size of the drawing paper 2 is formed in the left end wall of the frame shell 1, vertical sliding grooves are symmetrically formed in the front and rear inner end walls of the U-shaped groove 108, insertion plates 109 adapted to the inner size of the U-shaped groove 108 are arranged in the sliding grooves in a sliding manner, anti-slip grinding lines which are transversely arranged are uniformly distributed in the left end wall of the insertion plates 109, a frame cover plate for decoration is fixedly arranged around the front edge position of the frame shell 1, the outer edge position of the frame cover plate extends to the outer side of the frame shell 1, and during operation of the device, the U-shaped groove 108 is formed in the left end wall of the frame shell 1, the insertion plates 109 are vertically and slidably inserted into the U-shaped groove 108, so that the right side of the frame shell 1 can be opened by sliding the insertion plates 109 upwards, a worker can flexibly access the drawing paper 2 stored in the frame shell 1, the frame cover plate is fixedly arranged around the front edge position of the frame shell 1, the outer side of the frame cover plate extends to the outer side of the frame shell 1, the frame cover plate can be lifted to the outer side of the frame shell 1, and the whole appearance of the frame cover plate can be improved.

Referring to fig. 8, the inner end walls around the display window 101 are provided with clamping grooves, the outer side dimension of the flexible transparent plate is larger than the inner dimension of the display window 101, and the edge position of the flexible transparent plate is movably inserted into the clamping grooves.

Referring to fig. 10, a transparent film bag 201 matching with the painting size is fixedly embedded in the middle position of the painting paper 2, and an opening 202 matching with the painting size is formed in the right position of the back of the transparent film bag 201, when the device works, the transparent film bag 201 is embedded in the middle position of the painting paper 2, and the opening 202 is formed in the right position of the back of the transparent film bag 201, so that a worker can insert the painting into the transparent film bag 201 through the opening 202, store the painting by means of the transparent film bag 201, effectively reduce the contact probability with the outside in the painting display process, facilitate the protection of the painting, effectively realize the flexible replacement of the displayed painting, and improve the flexibility in the use process of the device to a certain extent and the protection of the painting.

Referring to fig. 4, 6 and 11, a rear bin 5 which is vertically symmetrical is disposed at a right side position of a rear end wall of the frame housing 1, two rear rollers 501 which are symmetrically disposed are rotatably disposed in the rear bin 5, a rear conveying belt 502 is movably sleeved between the two rear rollers 501, a front surface of the rear conveying belt 502 is convexly disposed at an outer side of a rear inner end wall of the frame housing 1, a reversing gear a503 is fixedly disposed on a rotating shaft of one rear roller 501, a reversing gear b504 is engaged and connected to an outer side of the reversing gear a503, a unidirectional transmission assembly b505 is disposed on a rotating shaft of the reversing gear b504, a transmission belt b506 is in transmission connection between a power input shaft of the unidirectional transmission assembly b505 and the winding roller 301, and a power output shaft of the unidirectional transmission assembly b505 is fixedly connected with the rear roller 501.

When the device works, when the winding roller 301 is pulled to rotate clockwise by pulling the rope 304, the rotation on the winding roller 301 cannot be transmitted to the rear-end roller 501 due to the unidirectional transmission of the unidirectional transmission component b505, when the winding roller 301 rotates anticlockwise under the elastic reset drive of the spring 306, the reversing gear b504 rotates anticlockwise due to the transmission connection of the transmission belt b506 and the unidirectional transmission of the unidirectional transmission component b505, the rear-end roller 501 drives the rear-end conveyor 502 to rotate clockwise by virtue of the meshing reversing gear b504 and the reversing gear a503, and the drawing paper 2 conveyed between the supporting plate b104 and the rear end wall of the frame shell 1 is assisted to convey the drawing paper 2 leftwards under the driving of friction force, so that the drawing paper 2 is ensured to enter between the supporting plate b104 and the rear end wall of the frame shell 1 stably and comprehensively.

Through rotating the rear roller 501 in the rear bin 5 arranged on the back end wall of the frame shell 1, movably sleeving the rear conveying belt 502 on the two rear rollers 501 corresponding to the left and right, and conducting unidirectional transmission through the unidirectional transmission component b505 and meshing reversing of the reversing gear a503 and the reversing gear b504, the rear conveying belt 502 keeps a stop state in the drawing process of the winding roller 301 by the pull rope 304, the winding roller 301 is driven to rotate anticlockwise by reset of the spring 306, and when the drawing paper 2 wound on the outer side of the winding roller is conveyed between the back end wall of the frame shell 1 and the support plate b104, the rear conveying belt 502 can be driven to rotate to stably convey the conveyed drawing paper 2 leftwards, so that the stable and comprehensive conveying of the drawing paper 2 to the support plate b104 and the back end wall of the frame shell 1 is guaranteed.

Referring to fig. 1 and 10, both sides of the drawing paper 2 are set to be smooth structures, a plurality of vertically arranged anti-slip grinding lines are arranged at edge positions of both sides of the front side and the back side of the drawing paper 2, a plurality of vertically arranged anti-slip grinding lines are also arranged on outer end walls of the front conveying belt 402 and the back conveying belt 502, the device is beneficial to reducing contact friction resistance between two adjacent drawing papers 2 by setting both sides of the drawing paper 2 to be smooth structures during operation, the problem that a plurality of drawing papers 2 are conveyed together is avoided, meanwhile, the anti-slip grinding lines matched with the front conveying belt 402 and the outer end walls of the back conveying belt 502 are arranged at edge positions of both sides of the front side and the back side of the drawing paper 2, the friction resistance during contact between the front conveying belt 402 and the back conveying belt 502 and the drawing papers 2 is beneficial to be improved, and stability during conveying and moving of the drawing papers 2 is guaranteed.

Referring to fig. 12-14, the unidirectional transmission assembly a403 and the unidirectional transmission assembly b505 each include a power input shaft located above and a power output shaft located below, a round shell 7 is fixedly installed at the bottom of the power input shaft, a disc 701 fixedly connected with the power output shaft is rotatably installed inside the round shell 7, a plurality of movable teeth 702 surrounding the power output shaft are rotatably installed at the top of the disc 701, torsion springs 703 are installed on rotating shafts of the movable teeth 702, the movable teeth 702 are elastically rotatably connected with the disc 701 through the torsion springs 703, a limiting block 704 for limiting unidirectional deflection of the plurality of movable teeth 702 is fixedly installed at the top of the disc 701, and inclined teeth 705 matched with the plurality of movable teeth 702 are fixedly installed on the inner end wall of the round shell 7 in a surrounding manner.

When the device works, external power enters through the power input shaft to drive the round shell 7 to rotate, when the rotating direction of the power is the same as the deflectable direction of the movable teeth 702, the round shell 7 drives the fixed inclined teeth 705 on the inner end wall of the round shell to push the movable teeth 702, so that the round shell 7 and the round disc 701 rotate relatively, namely the round shell 7 idles on the outer side of the round disc 701, the power on the power input shaft cannot be transmitted to the power output shaft in the state, when the rotating direction of the power is opposite to the deflectable direction of the movable teeth 702, the round shell 7 drives the fixed inclined teeth 705 on the inner end wall of the round shell to rotate, and the movable teeth 702 are limited by the limited position blocks 704 in the process of pushing the movable teeth 702, so that the movable teeth 702 cannot deflect, and at the moment, the round shell 7 drives the round disc 701 to synchronously rotate, and the rotation on the power input shaft is connected to the power output shaft, so that the unidirectional transmission of the unidirectional transmission component a403 and the unidirectional transmission component b505 is realized.

Referring to fig. 5 and 7, a guide strip 405 protruding backward is fixedly installed on the front inner end wall at the connection position of the display window 101 and the transfer cylinder 3, the right end of the supporting plate b104 is in a backward bending arc structure, and an elastic sheet arranged on the left side of the arc structure is fixedly installed on the right side of the back end wall of the supporting plate b 104.

The present application is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present application and the improved concept thereof, can be equivalently replaced or changed within the scope of the present application.

Claims

1. The utility model provides a spraying board frame with pull change page structure, includes frame shell (1) for cuboid structure, its characterized in that, frame shell (1) inside has placed many picture papers (2) of stacking each other, and the intermediate position encapsulation of picture paper (2) has the picture, offer show window (101) that are used for showing picture paper (2) inside painting on the front end wall of frame shell (1), and the internally mounted of show window (101) has flexible transparent plate, the inside slidable mounting of frame shell (1) has backup pad a (102) that are used for carrying out the support to picture paper (2), and the back upper and lower both sides edge of backup pad a (102) is fixed with a plurality of support springs a (103) of vertical setting evenly, the back one end fixed mounting of support spring a (103) is on the back inner end wall of frame shell (1);

the right end of the frame shell (1) is fixedly communicated with a middle rotary drum (3) which is vertically arranged, a vertically arranged roller (301) is rotatably arranged at the middle position inside the middle rotary drum (3), a clamping plate (302) which is obliquely arranged along the clockwise direction is fixedly arranged on the outer end wall of the roller (301), a wire roller (303) is fixedly arranged at the upper end of the roller (301), a pull rope (304) is fixedly connected to the outer end wall of the wire roller (303), the pull rope (304) is wound on the outer end wall of the wire roller (303), one end of the pull rope (304) far away from the wire roller (303) movably penetrates to the outer side of the middle rotary drum (3) and is fixedly connected with a pull ring (305), a spring (306) is sleeved on the outer side of the lower end of the roller (301), and the inner end and the outer end of the spring (306) are fixedly connected with the outer end wall of the roller (301) and the inner end wall of the middle rotary drum (3) respectively;

the front end wall right side position of the frame shell (1) is provided with a front bin (4) which is vertically symmetrical, two front rollers (401) which are horizontally symmetrical are rotatably arranged in the front bin (4), a front conveying belt (402) is movably sleeved between the two front rollers (401), the back surface of the front conveying belt (402) is attached to a drawing paper (2) positioned on the front surface, one rotary shaft of the front rollers (401) is provided with a one-way transmission assembly a (403), a transmission belt a (404) is connected between a power input shaft of the one-way transmission assembly a (403) and a winding roller (301) in a transmission manner, and a power output shaft of the one-way transmission assembly a (403) is fixedly connected with the front rollers (401);

the sliding frame is characterized in that a sliding frame (6) which is arranged in bilateral symmetry is vertically fixed on the end wall of the back face of the frame shell (1), a fixing frame (601) is sleeved on the outer side of the sliding frame (6) in a sliding mode, the top of the fixing frame (601) is arranged to be of a through structure, and the bottom of the fixing frame (601) is arranged to be of a closed structure.

2. The painting board picture frame with the drawing and page changing structure according to claim 1, characterized in that a supporting board b (104) arranged on the back of the supporting board a (102) is also slidably installed in the frame shell (1), a plurality of supporting springs b (105) which are longitudinally arranged are uniformly fixed at the edge positions of the upper side and the lower side of the front face of the supporting board b (104), and one end of the front face of the supporting spring b (105) is fixedly installed on the inner end wall of the front face of the frame shell (1).

3. The painting board picture frame with the drawing and page changing structure according to claim 2, characterized in that the middle positions of the upper end wall and the lower end wall of the frame shell (1) are provided with notches (106), the upper end wall and the lower end wall of the supporting board a (102) and the supporting board b (104) are movably inserted into the notches (106), and C-shaped buckles (107) movably clamped on the inner end walls at the left side and the right side of the notches (106) are provided.

4. The spraying board picture frame with the drawing page changing structure according to claim 1, characterized in that a U-shaped groove (108) matched with the size of the drawing paper (2) is formed in the left side end wall of the frame shell (1), vertically arranged sliding grooves are symmetrically formed in the front inner end wall and the rear inner end wall of the U-shaped groove (108), inserting plates (109) matched with the inner size of the U-shaped groove (108) are slidably mounted in the sliding grooves, anti-slip grinding lines which are transversely arranged are uniformly distributed on the left end wall of the inserting plates (109), a frame cover plate used for decorating is fixedly arranged at the front edge position of the frame shell (1) in a surrounding mode, and the outer edge position of the frame cover plate extends to the outer side of the frame shell (1).

5. The painting board picture frame with the drawing and page changing structure according to claim 4, wherein the inner end walls around the display window (101) are provided with clamping grooves, the outer side size of the flexible transparent board is larger than the inner size of the display window (101), and the edge position of the flexible transparent board is movably inserted into the clamping grooves.

6. The painting board picture frame with the drawing and page changing structure according to claim 2, characterized in that a transparent film bag (201) matched with the drawing size is fixedly inlaid in the middle position of the painting paper (2), and an opening (202) matched with the drawing size is formed in the position, close to the right, of the back surface of the transparent film bag (201).

7. The spraying board picture frame with the drawing page changing structure according to claim 2, characterized in that a rear bin (5) which is vertically symmetrical is arranged at the right side position of the back end wall of the frame shell (1), two rear rollers (501) which are symmetrically arranged are rotatably arranged in the rear bin (5), a rear conveying belt (502) is movably sleeved between the two rear rollers (501), the front surface of the rear conveying belt (502) is convexly arranged on the outer side of the back inner end wall of the frame shell (1), a reversing gear a (503) is fixedly arranged on the rotating shaft of one rear roller (501), a reversing gear b (504) is meshed and connected on the outer side of the reversing gear a (503), a unidirectional transmission component b (505) is arranged on the rotating shaft of the reversing gear b (504), a transmission belt b (506) is connected between the power input shaft of the unidirectional transmission component b (505) and the winding roller (301), and the power output shaft of the unidirectional transmission component b (505) is fixedly connected with the rear rollers (501).

8. The spraying board picture frame with the drawing and page changing structure according to claim 7, wherein the front surface and the back surface of the drawing paper (2) are both of smooth structures, a plurality of vertically arranged anti-slip grinding lines are arranged at the edge positions of the upper side and the lower side of the front surface and the back surface of the drawing paper (2), and a plurality of vertically arranged anti-slip grinding lines are also arranged on the outer end walls of the front conveying belt (402) and the back conveying belt (502).

9. The spray board picture frame with the drawing page-changing structure according to claim 7, characterized in that the unidirectional transmission assembly a (403) and the unidirectional transmission assembly b (505) both comprise a power input shaft positioned above and a power output shaft positioned below, a round shell (7) is fixedly installed at the bottom of the power input shaft, a disc (701) fixedly connected with the power output shaft is installed in the internal rotation of the round shell (7), a plurality of movable teeth (702) arranged around the power output shaft are rotatably installed at the top of the disc (701), torsion springs (703) are installed on rotating shafts of the movable teeth (702), the movable teeth (702) are elastically and rotatably connected with the disc (701) through the torsion springs (703), limiting blocks (704) used for limiting unidirectional deflection of the plurality of movable teeth (702) are fixedly installed at the top of the disc (701), and diagonal teeth (705) matched with the plurality of movable teeth (702) are fixedly arranged on the inner end wall of the round shell (7) in a surrounding mode.

10. The painting board picture frame with the drawing and page changing structure according to claim 2, characterized in that a guide bar (405) protruding backwards is fixedly installed on the front inner end wall of the connection part of the display window (101) and the transfer cylinder (3), the right end of the supporting board b (104) is provided with a circular arc structure bending backwards, and the right side of the back end wall of the supporting board b (104) is fixedly installed with a spring piece arranged on the left side of the circular arc structure.