CN118144469A - Device and method for repairing color of wall painting - Google Patents

Abstract

The invention provides a device for repairing color of a wall painting and a repairing method thereof. When repairing the wall painting, the wall painting is placed on the backing plate at the bottom of the turnover frame, and after the back of the wall painting is manufactured to complete the support body, a layer of backing plate is covered above the turnover frame. Then the lifting seat of the turnover mechanism is lifted to the upper side to be blocked by the corresponding stop lever, so that the rotating shaft rotates by taking the blocked guide pin as an axis, and the other guide pin is driven to swing and lift between the two stop levers, the limiting part of the first guide piece at the back of the lifting seat is blocked by the other stop pin, so that the turnover frame and the wall painting are driven to turn 180 degrees, and then the lifting seat is lowered onto the placing platform, so that the front surface of the wall painting faces upwards, and the surface cleaning, reinforcing, color repairing and other works can be conveniently carried out. Therefore, when the structure is used for repairing the color of the wall painting, the wall painting does not need to be manually turned over, and the wall painting can be effectively prevented from being damaged due to falling, so that the wall painting is safer and more convenient.

Description

Device and method for repairing color of wall painting

Technical Field

The invention relates to the technical field of wall painting repair, in particular to a wall painting color repair device and a wall painting color repair method.

Background

The tomb wall painting is an important cultural heritage of ancient Chinese civilization, and the painted content comprises subjects such as social development, cultural blending, ancient life and the like, so that the tomb wall painting is rich and precious. For a long time, there are two ways to solve the problem of tomb mural protection, namely in-situ protection and migration off-site protection. The in-situ protection mode is the best choice, however, the high technical requirement and high manpower and material resource cost make the in-situ protection of the mural very difficult. The remote migration protection is to take the tomb wall painting off from the wall, and is the main protection mode of the current tomb wall painting.

When the mural is removed, referring to fig. 3, it is generally necessary to glue a layer of gummed paper on the surface of the mural 5 and then paste a layer of paper 52, and then encapsulate a layer of plywood 6 on the front surface of the mural 5, so as to paste the mural 5 to form a complete one, then cut the whole wall surface, thereby removing the mural and the grass mud layer 51 of the wall surface, and then cover a layer of plywood 6 on the grass mud layer 51, so that the removed mural 5 is protected by two layers of plywood 6, and collision damage during transportation is avoided. The stripped wall painting 5 needs protection urgently, the general process of the stripped wall painting protection is that the clamp plate 6 on the back of the wall painting 5 is stripped, the grass mud layer 51 is cleaned, then a supporting body is manufactured, the wall painting 5 is turned back 180 degrees to enable the front face of the wall painting 5 to face upwards, the clamp plate 6 on the front face of the wall painting 5 is stripped, the sticker and the paper 52 are torn off, and then the surface of the wall painting 5 can be cleaned, reinforced, color repaired and the like.

Therefore, when the color restoration is carried out after the wall painting is uncovered, the wall painting needs to be turned 180 degrees to restore the front and back sides of the wall painting, the operation is basically carried out by manual operation at present, the wall painting is easy to drop and damage due to the mode of slightly careless operation, and therefore a certain risk exists.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides a device for repairing the color of a wall painting and a repairing method thereof.

The invention adopts the following technical scheme:

In a first aspect, the present invention provides a device for repairing the colour of a wall painting, characterised in that it comprises:

The rack is provided with a placement platform;

The turnover frame is arranged on the turnover platform, the peripheries of the two sides of the turnover frame are provided with surrounding blocks, the surrounding blocks are not arranged on one side of the front face of the frame, the cross section of each surrounding block is L-shaped, an insertion groove is formed between the surface of the turnover frame and the surrounding blocks, the insertion groove is used for inserting a base plate, the base plate covers one side of the turnover frame, and the base plate is used for supporting a mural placed in the turnover frame and is used for pressing and fixing the mural in the turnover frame;

The turnover mechanism comprises a movable frame, a lifting seat, a rotating shaft, the movable frame, a second guide piece and a first guide piece, wherein the lifting seat vertically lifts relative to the placing platform, the movable frame is connected to the rack, stop rods are arranged on two sides above the movable frame, the rotating shaft penetrates through the lifting seat to rotate relative to the lifting seat, and the turnover frame is fixed to one end of the rotating shaft; the second guide piece and the first guide piece are both fixed to the rotating shaft, the first guide piece is positioned at the other end of the rotating shaft, and the second guide piece is positioned in the range of the moving frame;

One side of the first guide piece extends outwards to form a limiting part, the limiting part and the bottom of the lifting seat are connected with a spring, blocking pins are fixed on two sides of the back of the lifting seat, and when the rotating shaft rotates to the point that the limiting part abuts against the blocking pins, the elastic acting force of compression of the spring pulls the limiting part, so that the overturning frame is kept horizontal;

The two sides of the second guide piece are symmetrically provided with guide pins, two guide pins are parallel to the rotating shaft, when the lifting seat drives the rotating shaft to ascend until one guide pin is blocked by the corresponding blocking rod, the rotating shaft rotates to drive the other guide pin to pass through the space between the two blocking rods until the limiting part is blocked by the other blocking pin, the rotating shaft drives the turnover frame and the fresco to turn 180 degrees, and the two guide pins are corresponding to the space between the two blocking rods.

In a possible implementation manner of the first aspect, the moving frame is limited to move transversely relative to the placement platform, a guiding part is arranged in the middle of the bottom of the moving frame, guiding inclined planes are formed on two sides of the moving direction of the moving frame, and when the lifting seat drives the second guiding piece to descend to the bottom of the moving frame, the guiding pin located below presses one guiding inclined plane to drive the moving frame to move to one side of the other guiding inclined plane.

In a feasible implementation manner of the first aspect, a vertical rotating screw rod is arranged on the back of the stand, a lifting motor is fixed on the top of the stand, the lifting motor drives the screw rod to rotate, a nut support is fixed on one side of the lifting seat, and the nut support is in threaded connection with the screw rod in an adapting mode.

In a possible implementation manner of the first aspect, the guide rods 12 are fixed on two sides in the back of the frame, the two guide rods 12 are vertically arranged, linear bearings are assembled on two sides of the lifting seat, and the two linear bearings are respectively matched with the two guide rods 12.

In a possible implementation manner of the first aspect, a plurality of threaded holes are formed in one surface, facing away from the overturning frame, of the enclosure, each threaded hole is matched with a screw connection bolt, and the bolts are screwed into the insertion grooves to press the backing plate.

In a feasible implementation manner of the first aspect, the device further comprises an air supply system, the air supply system comprises a C-shaped pipe, a fixed pipe, a connecting pipe and a fan, the C-shaped pipe is embedded in the insertion groove, the C-shaped pipe surrounds the side wall stuck in the enclosure, air outlet holes are further distributed on one side of the C-shaped pipe, which faces the middle of the turnover frame, and when the backing plate is inserted into the insertion groove of each enclosure along one side where the enclosure is not arranged, the side face of the backing plate keeps off the C-shaped pipe; the rotating shaft is a hollow pipe fitting, the C-shaped pipe is communicated with the inside of the rotating shaft, one end of the fixed pipe is fixed to the lifting seat, one end of the fixed pipe extends to the inside of the rotating shaft, the other end of the fixed pipe is bent and extends upwards, the fan is fixed at the top of the frame, an air outlet of the fan faces downwards, the connecting pipe is fixed below the air outlet of the fan, and the lower end of the connecting pipe extends to the inside of the upper end of the fixed pipe.

In a possible implementation manner of the first aspect, a connecting plate is fixed on one side of the lifting seat, which is opposite to the overturning frame, the second guide piece is located between the lifting seat and the connecting plate, the lower end of the fixed pipe penetrates into the rotating shaft after penetrating through the connecting pipe, and the fixed pipe is fixedly connected with the connecting plate.

In a possible implementation manner of the first aspect, the air supply system includes a hot air box, a heating pipe is arranged in the hot air box, one side of the hot air box is connected to an air inlet of the fan, and a ventilation opening is formed in the other side of the hot air box.

In a possible implementation manner of the first aspect, the hot air box is provided with a slot at a side edge of the ventilation opening, and a filter screen is inserted into the slot so that the filter screen covers the ventilation opening.

In a second aspect, the present invention provides a method for repairing a mural color repairing apparatus, which is characterized in that: the method comprises the following steps:

When the overturning frame is horizontally placed on the placing platform of the rack, the bottom of the overturning frame is covered with the base plate;

Placing the mural clamped by the clamping plates in the turnover frame, lifting the upper clamping plate to enable the straw-mud layer on the back of the mural to face upwards, cleaning the straw-mud layer on the back of the mural, and manufacturing a transition layer and an adhesive support body on the back of the mural;

Covering the backing plate at the surrounding baffle above the turnover frame, so that the backing plate is covered and fixed on the upper surface of the turnover frame, and pressing the wall painting to form two layers of backing plates to press the wall painting in the turnover frame;

The lifting seat is lifted to the position, above the lifting seat, of the guide pin is blocked by the corresponding stop lever, the rotating shaft rotates by taking the blocked guide pin as an axis, the other guide pin is driven to swing and lift through the space between the two stop levers, the limiting part of the first guide piece is blocked by the other stop pin, the turnover frame and the fresco are driven to turn over 180 degrees, the front surface of the fresco faces upwards, and then the lifting seat descends and resets to the placing platform;

And (3) disassembling the backing plate above the turnover frame, uncovering the gauze and the paper covered by the wall when the wall is taken out of the soil to expose the wall painting, cleaning the surface of the wall painting and filling the defect on the surface of the wall painting at the moment, then complementing the missing color of the wall painting, and then checking, accepting and warehousing for storage.

In a feasible implementation mode of the second aspect, the manufacturing method of the transition layer comprises the steps of flatly attaching a cut gauze strip to the back of the wall painting, brushing 10% of the AC33 solution once until the back of the wall painting is completely covered with the solution stick, filling the missing part of the wall painting with lime cream added with hemp threads after the gauze on the back is dried, and filling the back of the wall painting with the prepared lime cream to form the transition layer; and after the transition layer is calcified, uniformly smearing the debugged epoxy resin glue on the surface of the transition layer, bonding the aluminum plate on the epoxy resin on the back of the mural, and fixing the aluminum plate to form the support body.

As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the invention discloses a method for manufacturing a wall painting, which comprises the steps of fixing a backing plate at the bottom of a turnover frame in advance, cleaning a straw mud layer on the back of the wall painting, manufacturing a supporting body, and covering a layer of backing plate above the turnover frame to form a structure of pressing the wall painting by two layers of backing plates. Then the lifting seat is lifted to the guide pin above and blocked by the corresponding stop lever, so that the rotating shaft rotates by taking the blocked guide pin as an axis, and the other guide pin is driven to swing and lift between the two stop levers, the limiting part of the first guide piece at the back of the lifting seat is blocked by the other stop pin, so that the turnover frame and the wall painting are driven to turn 180 degrees, the front surface of the wall painting is turned upwards, and then the lifting seat is lowered and reset to the placing platform, so that the front surface of the wall painting is horizontally upwards, and the surface cleaning, reinforcing, color repairing and other works can be conveniently carried out. Therefore, when the structure is used for repairing the color of the wall painting, the wall painting does not need to be manually turned over, and the wall painting in the turning process can be protected through the turning frame, so that the wall painting can be effectively prevented from being damaged due to falling, and the wall painting color repairing method is safe and convenient.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the bottom surface of the turnover frame after covering the pad.

Fig. 3 is an enlarged schematic view at a in fig. 2.

Fig. 4 is a schematic cross-sectional structure of the flip frame after the bottom surface is covered with the pad.

Fig. 5 is an enlarged schematic view at B in fig. 4.

Fig. 6 is a schematic perspective view of a C-shaped tube.

Fig. 7 is a schematic perspective view of a rotating shaft connecting the first guide member and the second guide member.

Fig. 8 is a schematic perspective view of the front surface of the turnover mechanism.

Fig. 9 is a schematic perspective view of the back of the tilting mechanism below the moving frame.

Fig. 10 is a front view of fig. 9.

Fig. 11 is a schematic view of the flip frame on the placement platform.

Fig. 12 is a schematic view of the lifting seat being raised until the guide pin abuts a stop lever.

Fig. 13 is a schematic view of the lifting seat lifting to drive the turnover frame to turn 90 ° to be vertical.

Fig. 14 is a schematic view of the lifting seat lifting to drive the turnover frame to turn 90 ° to the horizontal.

Fig. 15 is a schematic view of a lateral cross-sectional structure of the present invention.

Fig. 16 is an enlarged schematic view at C in fig. 15.

FIG. 17 is a schematic perspective view of a fan connecting a hot air box and a connecting pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings.

Hereinafter, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.

Furthermore, in the present application, directional terms such as "upper", "lower", and the like are defined with respect to a schematically positioned orientation of components in the drawings, and it should be understood that these directional terms are relative concepts, which are used for description and clarity with respect thereto, and which may be correspondingly varied according to variations in the orientation in which the components are positioned in the drawings.

In one aspect, the invention provides a device for repairing color of a wall painting, which is shown in fig. 1, and comprises a stand 1, a turnover frame 2, a turnover mechanism and an air supply system. Wherein, the front of frame 1 sets up place platform 11, and upset frame 2 is used for placing the mural painting after taking off to upset frame 2 sets up on upset platform 11, can overturn frame 2 through tilting mechanism and be 180 ground rotations. The back of the frame 1 is provided with an air supply system for supplying air to the fresco 5 in the color restoration stage.

As shown in fig. 2 and 3, the periphery of both sides of the turnover frame 2 is provided with a surrounding block 21, and the surrounding block 21 is not provided on one side of the turnover frame 2 corresponding to the outside of the front surface of the frame 1. The cross section of the enclosure 21 is L-shaped, so that an insertion groove is formed between the surface of the turnover frame 2 and the enclosure 21, the insertion groove is used for inserting the cushion plate 23, specifically, the cushion plate 23 is inserted along one side of the turnover frame 2 where the enclosure 21 is not arranged, two sides of the cushion plate 23 are inserted along the insertion grooves 201 of the enclosures 21 on two sides of the turnover frame 2, and the cushion plate 23 is stuck to one side of the turnover frame 2 to cover one side of the turnover frame 2. Further, a plurality of threaded holes 202 are formed in the surface of the surrounding block 21 facing away from the overturning frame 2, each threaded hole 202 is matched with a screw connection bolt 22, after two sides of the backing plate 23 are respectively inserted into the insertion grooves 201 of the two surrounding blocks 21, the bolts 22 are screwed into the insertion grooves 201 to press the backing plate 23, and in this way, the backing plate 23 can be fixed on one surface of the overturning frame 2. The structure of the backing plate 23 arranged on the surface of the turnover frame 2 can be used for supporting the wall painting placed in the turnover frame 2 and pressing and fixing the wall painting in the turnover frame 2.

Referring specifically to fig. 4 and 5, when the turnover frame 2 is turned over to be horizontally placed on the placement platform 11 and the bottom surface of the turnover frame 2 is fixed to the pad 23, the mural 5 to be repaired after being removed can be placed on the pad 23. After the fresco 5 is taken off and placed on the backing plate 23, and the working procedures of cleaning the grass and mud layer 51, manufacturing the transition layer, adhering the supporting body and the like are completed on the back surface of the fresco 5, the other backing plate 23 is covered and fixed on the upper surface of the turnover frame 2, so that the upper backing plate 23 presses the fresco downwards and is fixed in the turnover frame 2.

As shown in fig. 1 and 7 to 10, the tilting mechanism includes a moving frame 33, a lifting base 31, a rotating shaft 32, a second guide 35, and a first guide 34. Wherein, the lifting seat 31 is arranged on the back of the frame 1 and vertically lifts relative to the placement platform 11, the lifting structure can be that guide rods 12 are fixed on two sides in the back of the frame 1, the two guide rods 12 are vertically arranged, linear bearings are assembled on two sides of the lifting seat 31, and the two linear bearings are respectively matched with the two guide rods 12, so that the lifting seat 31 is limited to vertically lift only. In addition, a nut support 373 is fixed on one side of the lifting seat 31, a vertically rotating screw rod 372 is further arranged on the back of the frame 1, and the screw rod 372 penetrates through the nut support 373 to be in threaded connection with the nut support 373 in an adaptive manner. The lifting motor 371 is also fixed at the top of the frame 1, and the lifting motor 371 drives the screw rod 372 to rotate, so that the lifting seat 31 is driven to vertically lift along the guide rod 12.

As shown in the drawing, the rack 1 is fixed near the lower side of the back surface with a sliding rail 131, the sliding rail 131 extends to both sides of the rack 1, and the sliding rail 131 is adapted with a sliding connection slider 132, and the moving frame 33 is fixed to the slider 132, thereby restricting the moving frame 33 from sliding on both sides of the rack 1 relative to the rack 1. The stop lever 331 is disposed on both sides above the moving frame 33, the guide portion 332 is disposed in the middle of the bottom of the moving frame 33, and the guide portion 332 has guide slopes on both sides in the moving direction of the moving frame 33.

As shown in fig. 16, the rotation shaft 32 passes through the elevating seat 31 to rotate relative to the elevating seat 31. Preferably, bearings are mounted in both sides of the lifting seat 31, the rotating shaft 32 passes through both of the bearings, and the rotating shaft 32 is mounted with a snap spring at a position where both of the bearings face the outer end surface of the lifting seat 31, thereby restricting the rotating shaft 32 to be axially fixedly connected to the lifting seat 31 for rotation only. Referring again to fig. 7 and 8, the first guide 34 is fixed to one end of the rotation shaft 32, the flipping frame 2 and the second guide 35 are both fixed to the other end of the rotation shaft 32, and the second guide 35 is located within the range of the moving frame 33. The turnover frame 2 is fixed to the end of the rotating shaft 32 through a flange structure, and the first guide piece 34 and the second guide piece 35 can be sleeved outside the rotating shaft 32 and then fixed through penetrating bolts or direct welding.

As shown in fig. 9 and 10, one side of the first guide 34 is extended outward to form a stopper 341. The two ends of the spring 36 are respectively connected with the limiting part 341 and the bottom of the lifting seat 31, and the connection mode can be that one side of the limiting part 341 and the lower part of the lifting seat 31 are respectively provided with a connecting pin (not labeled in the drawing), the two ends of the spring 36 are provided with hooks, and the hooks at the two ends of the spring 36 are respectively hooked on the two connecting pins, so that the spring 36 can rotate relative to the lower parts of the limiting part 341 and the lifting seat 31. In addition, the stop pins 311 are fixed on both sides of the back surface of the lifting seat 31, when the rotating shaft 32 rotates until the limit portion 341 of the first guide 34 abuts against the stop pins 311, the elastic force compressed by the spring 36 pulls the limit portion 341, so that the rotating shaft 32 is prevented from rotating, and the turnover frame 2 can be kept in a horizontal state.

As shown in fig. 7, the second guide 35 is provided at both sides with guide pins 351, the guide pins 351 are symmetrically disposed, and the guide pins 351 are parallel to the rotation shaft 32. Referring to fig. 11 to 14 again, when the lifting seat 31 drives the rotating shaft 32 to rise until one of the guide pins 351 is blocked by the corresponding stop lever 331, the lifting seat 31 continues to rise to enable the rotating shaft 32 to rotate with the blocked guide pin 351 as an axis, so as to drive the other guide pin 351 to swing and rise through the space between the two stop levers 331, the limit part 341 of the first guide 34 on the back of the lifting seat 31 is blocked by the other stop pin 311, in the process, the limit part 341 rotates onto the other stop pin 311 by one of the stop pins 311, and the limit part 341 is pulled again by the spring 36 to enable the rotating shaft 32 to remain fixed and not rotate again, so that the rotating shaft 32 drives the turnover frame 2 and the mural to turn 180 degrees, and both the guide pins 351 on the front of the lifting seat 31 correspond to the space between the two stop levers 331, so that the two guide pins 351 can pass through the space between the two stop levers 331 to descend. The lifting seat 31 can then descend to reset to drive the rotating shaft 32 and the turnover plate kept horizontal to descend to the placing platform 11, so that the turnover plate ascends and turns 180 degrees and descends again, and automatic turnover of the fixed wall painting in the turnover plate is realized.

In addition, when the lifting seat 31 drives the second guide member 35 to descend to the bottom of the moving frame 33, the lower guide pin 351 presses against the corresponding lower guide slope, and the downward force generated in this process pushes the guide portion 332 to the side, i.e. drives the moving frame 33 to move to one side of the other guide slope, for example, drives the moving frame 33 to move to the left as shown in fig. 14, so that the upper stop lever 331 moves to the position corresponding to the upper guide pins 351. When the lifting seat 31 is lifted up, the stop lever 331 again stops the guide pin 351 to realize the rotation of the rotating shaft 32 again.

On the other hand, the invention also provides a repairing method of the device, which comprises the following steps:

when the turnover frame 2 is horizontally placed on the placement platform 11, a base plate 23 is inserted into the surrounding baffle 21 at the bottom of the turnover frame 2, so that the base plate 23 is covered and fixed on the bottom surface of the turnover frame 2;

Placing the wall painting clamped by the clamping plates 6 in the turnover frame 2, lifting the upper clamping plate 6 to enable the grass mud layer 51 on the back of the wall painting to face upwards, cleaning the grass mud layer 51 on the back of the wall painting, manufacturing a transition layer and an adhesive support body on the back of the wall painting, wherein the transition layer is specifically manufactured by flatly pasting a cut gauze strip on the back of the wall painting, brushing 10% AC33 solution for one time until stick of the wall painting is completed, filling the missing part of the wall painting with lime cream added with hemp threads after the gauze on the back of the wall painting is dried, filling the prepared lime cream on the back of the wall painting to form a transition layer, uniformly smearing the debugged epoxy resin glue on the surface of the transition layer after the transition layer is calcified, bonding a pre-prepared aluminum plate on the back of the wall painting, and fixing the aluminum plate to form the support body for supporting the back of the wall painting;

Inserting a backing plate 23 at the surrounding block 21 above the turnover frame 2, enabling the backing plate 23 to cover and fix on the upper surface of the turnover frame 2, and pressing the mural to form a structure that two layers of backing plates 23 press the mural, preferably, if a gap is formed between the back surface of the mural and the backing plate 23, a layer of flexible rubber sheet can be padded on a supporting body before the backing plate 23 is covered on the turnover frame 2 so as to fill the gap between the back surface of the mural and the backing plate 23, so that the backing plate 23 compacts the mural;

the lifting motor 371 drives the lifting seat 31 to rise to the upper guide pin 351 to be blocked by the corresponding stop lever 331, so that the rotating shaft 32 rotates by taking the blocked guide pin 351 as an axis, and then drives the other guide pin 351 to swing and rise through the space between the two stop levers 331 until the limit part 341 of the first guide piece 34 on the back of the lifting seat 31 is blocked by the other stop pin 311, and thus drives the turnover frame 2 and the fresco to turn 180 degrees, so that the right side of the fresco faces upwards, and then the lifting seat 31 descends and resets to the placing platform 11;

The backing plate 23 above the turnover frame 2 is disassembled, the gauze and the paper 5252 covered by the wall are removed when the wall is removed from the soil, so that the wall painting is exposed, the surface of the wall painting can be cleaned and the defect of the surface of the wall painting can be filled, the missing color of the wall painting is complemented, and then the wall painting can be checked, accepted and stored.

The apparatus of the present invention further comprises an air supply system, as shown in fig. 15 and 16, including a C-shaped pipe 41, a fixed pipe 42, a connection pipe 43, a fan 44, and a hot air box 45. Referring again to fig. 4 to 6, the C-shaped tube 41 is fitted and embedded in the insertion grooves 201 on the same side of the turnover frame 2 in a C-shaped knot, and the C-shaped tube 41 surrounds the side wall attached to the enclosure 21. The side of the C-shaped pipe 41 facing the middle of the turnover frame 2 is also distributed with air outlet holes 411, and when the pad plate 23 is inserted into the insertion groove 201 of each of the fences 21 along the side where the fence 21 is not provided, the side surface of the pad plate 23 blocks the C-shaped pipe 41 and blocks each of the air outlet holes 411. The rotating shaft 32 is a hollow pipe fitting, the extending pipe 46 is fixed in the middle of the C-shaped pipe 41, when the turnover frame 2 is fixed to the rotating shaft 32, the extending pipes 46 of the C-shaped pipes 41 on two sides of the turnover frame 2 penetrate into the rotating shaft 32 after penetrating through the flanges, so that the C-shaped pipes 41 are communicated with the inside of the rotating shaft 32.

The fixing tube 42 is bent by 90 ° to form an L shape, one end of the fixing tube 42 is bent to extend upward, the other end of the fixing tube 42 is fixed to the back of the lifting seat 31 by connection of the connection plate 38, the fixing manner may be that the connection plate 38 is fixed to one side of the lifting seat 31 facing away from the turnover frame 2, the second guide 35 is located between the lifting seat 31 and the connection plate 38, the lower end of the fixing tube 42 passes through the connection plate 43 and extends into the rotation shaft 32, and the fixing tube 42 is fixedly connected with the connection plate 38, by this structure, the lower end of the fixing tube 42 is communicated with the rotation shaft 32 while the fixing tube 42 does not affect rotation of the rotation shaft 32, preferably, a sealing ring can be assembled in a gap between the fixing tube 42 and the rotation shaft 32. The blower 44 is fixed on the top of the frame 1, and the air outlet of the blower 44 faces downwards. The connection pipe 43 is fixed to an air outlet of the blower 44, and a lower end of the connection pipe 43 extends into an upper end of the fixing pipe 42, thereby allowing the connection pipe 43 to communicate with the fixing pipe 42, and the fixing pipe 42 moves telescopically with respect to the connection pipe 43 when the fixing pipe 42 is lifted by the lifting base 31.

Referring again to fig. 17, one side of the hot air box 45 is connected to the air inlet of the blower 44, and the other side of the hot air box 45 is provided with a ventilation opening. The hot air box 45 is internally provided with a heating pipe, and the heating pipe converts electric energy into heat energy to heat the air in the hot air box 45 to form hot air.

When the structure of the air supply system works, the fan 44 pumps hot air in and sends the hot air to the front surface of the wall painting placed on the turnover frame 2 through the connecting pipe 43, the fixed pipe 42, the rotating shaft 32 and the air outlet 411 of the C-shaped pipe 41 above the turnover frame 2, and the baking mode can accelerate the softening of peach gum stuck when the wall painting is unearthed, so that the gauze and the paper 5252 on the front surface of the wall painting can be quickly uncovered, and the efficiency of repairing the color of the wall painting can be improved.

Further, the hot air box 45 is provided with a slot at the side of the vent, and the filter screen 451 is inserted into the slot, so that the filter screen 451 covers the vent. By utilizing the structure of the filter screen 451, dust in the air can be blocked, so that hot air blown to the turnover frame 2 is cleaner, and the wall painting dust is prevented from being polluted by the wall painting.

In summary, when the invention is used for repairing the color of the wall painting, the wall painting taken off from the tomb room is placed on the overturning frame 2, so that the base plate 23 at the bottom of the overturning frame 2 supports the wall painting, and after the grass and mud layer 51 at the back of the wall painting is cleaned and the support body is manufactured, a layer of base plate 23 is covered above the overturning frame 2, so that a structure that the wall painting is pressed by the two layers of base plates 23 is formed. Then the guide pin 351 of the lifting seat 31 which rises to the upper side is blocked by the corresponding stop lever 331, so that the rotating shaft 32 rotates by taking the blocked guide pin 351 as an axis, and the other guide pin 351 is driven to swing and rise through the space between the two stop levers 331, the limit part 341 of the first guide piece 34 at the back of the lifting seat 31 is blocked by the other stop pin 311, so that the turnover frame 2 and the fresco are driven to turn 180 degrees, the front surface of the fresco faces upwards, and then the lifting seat 31 is lowered and reset to the placing platform 11, so that the front surface of the fresco faces upwards, and the surface cleaning, the reinforcing, the color repairing and other works can be conveniently carried out. Therefore, when the structure is used for repairing the color of the wall painting, the wall painting does not need to be manually turned over, and the wall painting in the turning process can be protected through the turning frame, so that the wall painting can be effectively prevented from being damaged due to falling, and the wall painting color repairing method is safe and convenient.

The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.

Claims (10)

1. A device for color restoration of a wall painting, the device comprising:

The rack is provided with a placement platform;

The turnover frame is arranged on the turnover platform, the peripheries of the two sides of the turnover frame are provided with surrounding blocks, the surrounding blocks are not arranged on one side of the front face of the frame, the cross section of each surrounding block is L-shaped, an insertion groove is formed between the surface of the turnover frame and the surrounding blocks, the insertion groove is used for inserting a base plate, the base plate covers one side of the turnover frame, and the base plate is used for supporting a mural placed in the turnover frame and is used for pressing and fixing the mural in the turnover frame;

The turnover mechanism comprises a lifting seat, a rotating shaft, a movable frame, a second guide piece and a first guide piece, wherein the lifting seat vertically lifts relative to the placing platform, stop rods are arranged on two sides above the movable frame, the rotating shaft penetrates through the lifting seat to rotate relative to the lifting seat, and the turnover frame is fixed to one end of the rotating shaft; the second guide piece and the first guide piece are both fixed to the rotating shaft, the first guide piece is positioned at the other end of the rotating shaft, and the second guide piece is positioned in the range of the moving frame;

One side of the first guide piece extends outwards to form a limiting part, the limiting part and the bottom of the lifting seat are connected with a spring, blocking pins are fixed on two sides of the back of the lifting seat, and when the rotating shaft rotates to the point that the limiting part abuts against the blocking pins, the elastic acting force of compression of the spring pulls the limiting part, so that the overturning frame is kept horizontal;

The two sides of the second guide piece are symmetrically provided with guide pins, two guide pins are parallel to the rotating shaft, when the lifting seat drives the rotating shaft to ascend until one guide pin is blocked by the corresponding blocking rod, the rotating shaft rotates to drive the other guide pin to pass through the space between the two blocking rods until the limiting part is blocked by the other blocking pin, the rotating shaft drives the turnover frame and the fresco to turn 180 degrees, and the two guide pins are corresponding to the space between the two blocking rods.

2. The device according to claim 1, wherein the movable frame is limited to move transversely relative to the placement platform, a guide part is arranged in the middle of the bottom of the movable frame, the guide parts are provided with guide inclined planes at two sides of the moving direction of the movable frame, and when the lifting seat drives the second guide piece to descend to the bottom of the movable frame, the guide pin positioned below presses one of the guide inclined planes to drive the movable frame to move to one side of the other guide inclined plane.

3. The device according to claim 1 or 2, wherein a vertically rotating screw rod is arranged on the back of the frame, a lifting motor is fixed on the top of the frame and drives the screw rod to rotate, a nut support is fixed on one side of the lifting seat, and the nut support is in threaded connection with the screw rod in an adapting mode.

4. The device according to claim 1 or 2, wherein guide rods 12 are fixed on both sides in the back of the frame, both guide rods 12 are vertically arranged, both sides of the lifting seat are provided with linear bearings, and both linear bearings are respectively matched and matched outside both guide rods 12.

5. The device of claim 1, wherein a plurality of threaded holes are formed in a face of the enclosure facing away from the turnover frame, each threaded hole being adapted to receive a screw-type coupling bolt, and the bolts are screwed into the insertion grooves to press the pad.

6. The apparatus of claim 1, further comprising an air supply system including a C-shaped pipe, a fixing pipe, a connection pipe, a fan, and a hot air box, wherein the C-shaped pipe is embedded in the insertion groove, and the C-shaped pipe surrounds a side wall stuck in the enclosure, and air outlet holes are further distributed on a side of the C-shaped pipe facing the middle of the turnover frame, and when the pad is inserted into the insertion groove of each enclosure along a side where the enclosure is not provided, the side surface of the pad blocks the C-shaped pipe; the rotating shaft is a hollow pipe fitting, the C-shaped pipe is communicated with the inside of the rotating shaft, one end of the fixed pipe is fixed to the lifting seat, one end of the fixed pipe extends into the rotating shaft, the other end of the fixed pipe is bent and extends upwards, the fan is fixed at the top of the frame, an air outlet of the fan faces downwards, the connecting pipe is fixed below the air outlet of the fan, and the lower end of the connecting pipe extends into the upper end of the fixed pipe; hot air is formed in the hot air box, one side of the hot air box is connected to an air inlet of the fan, and a ventilation opening is formed in the other side of the hot air box.

7. The device of claim 6, wherein a connecting plate is fixed to a side of the lifting seat facing away from the turnover frame, the second guide member is positioned between the lifting seat and the connecting plate, a lower end of the fixing tube penetrates into the rotating shaft after passing through the connecting tube, and the fixing tube is fixedly connected with the connecting plate.

8. The apparatus of claim 7, wherein said hot blast box is provided with a slot at a side of said vent, and a filter screen is inserted into said slot so that said filter screen covers said vent.

9. A method of repairing a mural color using the apparatus of any one of claims 1, 2, 5, 6, 7 and 8, the method comprising:

When the overturning frame is horizontally placed on the placing platform of the rack, the bottom of the overturning frame is covered with the base plate;

Placing the mural clamped by the clamping plates in the turnover frame, lifting the upper clamping plate to enable the straw-mud layer on the back of the mural to face upwards, cleaning the straw-mud layer on the back of the mural, and manufacturing a transition layer and an adhesive support body on the back of the mural;

Covering the backing plate at the surrounding baffle above the turnover frame, so that the backing plate is covered and fixed on the upper surface of the turnover frame, and pressing the wall painting to form two layers of backing plates to press the wall painting in the turnover frame;

The lifting seat is lifted to the position, above the lifting seat, of the guide pin is blocked by the corresponding stop lever, the rotating shaft rotates by taking the blocked guide pin as an axis, the other guide pin is driven to swing and lift through the space between the two stop levers, the limiting part of the first guide piece is blocked by the other stop pin, the turnover frame and the fresco are driven to turn over 180 degrees, the front surface of the fresco faces upwards, and then the lifting seat descends and resets to the placing platform;

And (3) disassembling the backing plate above the turnover frame, uncovering the gauze and the paper covered by the wall when the wall is taken out of the soil to expose the wall painting, cleaning the surface of the wall painting and filling the defect on the surface of the wall painting at the moment, then complementing the missing color of the wall painting, and then checking, accepting and warehousing for storage.

10. The method of claim 9, wherein the transition layer is produced by flatly attaching a cut gauze strip to the back of the wall painting, and brushing 10% of the AC33 solution once until the back of the wall painting is completely covered with the solution stick, filling the missing part of the wall painting with white gray paste added with hemp threads after the gauze on the back is dried, and filling the back of the wall painting with the prepared white gray paste to form the transition layer; and after the transition layer is calcified, uniformly smearing the debugged epoxy resin glue on the surface of the transition layer, bonding the aluminum plate on the epoxy resin on the back of the mural, and fixing the aluminum plate to form the support body.