Wall painting supporting device with drying function for hollow wall painting grouting repair

By introducing a heating chamber and a hot air blower into the mural support device, and utilizing the hot air blower and vortex flow channel structure, the problem of the inability to quickly dry the grouting area during mural restoration was solved, achieving rapid drying and shortening the restoration time.

CN224149230UActive Publication Date: 2026-04-21DUNHUANG RES INST CULTURAL RELICS PROTECTION TECH SERVICE CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DUNHUANG RES INST CULTURAL RELICS PROTECTION TECH SERVICE CENT
Filing Date
2025-05-22
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In traditional mural restoration, the grouting area cannot be dried quickly, resulting in high surface humidity, which easily breeds bacteria and takes a long time to restore.

Method used

A mural support device with a heating chamber and a hot air blower was designed. The hot air blower provides the heat source, and the hot air is delivered into the heating chamber through the air duct. The air outlet transfers heat to the cushion layer. Combined with the vortex flow channel and ventilation structure, the grouting position can be dried quickly.

Benefits of technology

This method enables rapid drying of the grouting area while supporting the mural, shortening the repair time and preventing bacterial growth caused by excessive humidity on the mural surface.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mural supporting device with a drying function for hollow mural grouting repair, which is characterized in that a hollow position of a mural is grouted and the supporting device is installed, an air shell is installed on a supporting plate to form a heating cavity, an air inlet of the air shell is connected with a hot-air blower through an air pipe, and the hot-air blower is used for providing a heat source. According to the mural supporting device, heating air flow is conveyed into the heating cavity through the air pipe and flows to the cushion layer from air outlet holes formed in the supporting top plate, heat is transmitted to grouting materials through the cushion layer and the mural to accelerate drying of the grouting materials, the air flow is discharged from the position between the supporting top plate and the cushion layer through the ventilation structure, and therefore the mural can be supported, and meanwhile the grouting position can be dried.
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Description

Technical Field

[0001] This utility model belongs to the field of mural restoration devices, and in particular relates to a mural support device with drying function for grouting restoration of hollow murals. Background Technology

[0002] In mural restoration, one situation arises where hollow areas appear in the mural, requiring grouting for repair. After grouting, a support plate is needed to hold the mural in place. The traditional support method uses a screw and a screw sleeve. The screw sleeve is fixed to the scaffolding erected on site with fasteners, while the screw holds the support plate to position the mural. However, the traditional method cannot dry the grouting area, resulting in a long natural drying time. The large amount of moisture introduced during grouting makes the mural surface highly humid, which can easily breed bacteria if it cannot dry quickly. In addition, the restoration time is long. Utility Model Content

[0003] (1) Technical problem to be solved: Provide a mural support device that can dry the grouting part while supporting the mural.

[0004] (2) The technical solution adopted by this utility model is as follows:

[0005] A mural support device with drying function for grouting repair of hollow murals includes a support plate, a threaded rod, and fasteners. The fasteners are connected to the rod via threaded sleeves. A fan shell is provided on one side of the support plate, and an air inlet is provided on the fan shell. A heating chamber is formed between the fan shell and the support plate. Multiple air outlets are opened on the support plate inside the heating chamber. The air inlets are connected to a hot air blower via air ducts. A support bracket is provided on the side of the support plate where the fan shell is located. The support bracket is connected to the rod. A ventilation structure is provided on the other side of the support plate, and a pad layer is provided on the side of the support plate where the ventilation structure is located.

[0006] A further technical solution is that a vortex flow channel is provided inside the heating chamber, and the vortex flow channel connects the air inlet and the air outlet.

[0007] A further technical solution is that the top support includes legs, a crossbeam and a top head, the top head is provided with a top socket, the crossbeam is fixed to the top plate by four legs, the top head is fixed in the middle of the crossbeam, and the top rod end is provided with a top head that matches the top socket.

[0008] A further technical solution is that the ventilation structure has exhaust grooves distributed on the support plate.

[0009] A further technical solution is to create a reserved groove on the pad layer at a position corresponding to the exhaust groove.

[0010] (3) Due to the adoption of the above technical solution, the beneficial effects of this utility model are: grouting is performed at the hollow position of the mural and the support device is installed. Since the air shell is installed on the support plate to form a heating chamber, the air inlet of the air shell is connected to the hot air blower through the air pipe. The hot air blower provides the heat source, and the heated airflow is transported to the heating chamber through the air pipe. From the air outlet opened on the support plate, it flows to the pad layer. The heat is transferred to the grouting material through the pad layer and the wall skin to accelerate its drying. The airflow is discharged from between the support plate and the pad layer through the ventilation structure. Thus, the mural support device can dry the grouting at the same time as supporting the mural.

[0011] By setting a vortex flow channel inside the heating chamber, which connects the air inlet and the air outlet, this structure can guide the hot airflow, allowing the hot airflow to cover all the air outlets. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 yes Figure 1 Schematic diagram of the structure at point A;

[0014] Figure 3 yes Figure 1 Schematic diagram of the structure at point B;

[0015] Figure 4 This is a schematic diagram showing the location and structure of the padding layer described in this utility model;

[0016] Figure 5 yes Figure 4 Schematic diagram of the structure at point A;

[0017] Figure 6 yes Figure 4 Schematic diagram of the structure at point B;

[0018] Figure 7 This is a schematic diagram of the vortex flow channel inside the wind shell of this utility model;

[0019] Figure 8 This is a schematic diagram of the vortex flow channel inside the wind shell of this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-8As shown. A mural support device with drying function for grouting repair of hollow murals includes a support plate 1, a threaded top rod 2, and fasteners 3. The fasteners 3 are connected to the top rod 2 through threaded sleeves 4. A fan shell 5 is provided on one side of the support plate 1, and an air inlet 6 is provided on the fan shell 5. A heating chamber is formed between the fan shell 5 and the support plate 1. Multiple air outlets 7 are opened on the support plate 1 inside the heating chamber. The corresponding air inlets 6 are connected to a hot air blower 8 through air pipes. A support seat 9 is provided on the support plate 1 on the side where the fan shell 5 is located. The support seat 9 is connected to the top rod 2. A ventilation structure is provided on the other side of the support plate 1, and a pad layer 10 is provided on the side of the support plate 1 where the ventilation structure is located.

[0022] When in use, fastener 3 is fixed to the scaffolding on site, and screw sleeve 4 is fitted onto top rod 2 and threadedly connected to it. After grouting in the hollow mural wall, support plate 1 is used to support the wall surface to ensure the adhesion of the mural. In the existing process, it is usually necessary to paste Xuan paper, cotton paper, or XC60 paper on the mural to protect it. The padding layer 10 is placed between the support plate 1 and the wall plaster (with paper applied) to further protect the mural. Because the support plate 1 needs to be made of rigid material, such as metal, to achieve the supporting effect, after the support plate 1 and the padding layer 10 are installed, the top rod 2 is rotated so that its end presses against the support bracket 9, so that the support plate 1 supports the mural. The hot air blower 8 is an existing one with temperature regulation, which heats and dries the mural at the set temperature (temperature range between 20℃ and 50℃). The hot air blower 8 provides the heat source, and the heated airflow is transported to the heating chamber through the air duct. It flows to the padding layer 10 from the multiple air outlets 7 opened on the support plate 1. The heat is transferred to the grouting material through the padding layer 10 and the wall plaster to accelerate its drying. The airflow is discharged from the ventilation structure between the support plate 1 and the padding layer 10 through the ventilation structure. Coupler 3 is an existing steel pipe scaffolding connector, comprising a fixed coupler 19 and a movable coupler 20. The fixed coupler 19 is fixedly connected (welded) to the threaded sleeve 4. One end of the movable coupler 20 is hinged to one end of the fixed coupler 19, and the other end of the movable coupler 20 is provided with a groove 21. The other end of the fixed coupler 19 is hinged to a bolt rod 22, which can be located inside the groove 21, and a nut 23 is threaded onto the bolt rod 22. (For the application scenario of this utility model, please refer to Chinese Utility Model Patent CN206801091U, a spring-loaded support frame for restoring ancient murals.)

[0023] The heating chamber is provided with a vortex flow channel 11, which connects the air inlet 6 and the air outlet 7. This structure can guide the hot airflow so that the hot airflow can cover all the air outlets 7.

[0024] The support 9 includes legs 12, a crossbeam 13, and a support head 14. The legs 12 are fixed to the support plate 1. The support head 14 is provided with a recess 15. The crossbeam 13 is fixed to the support plate 1 via four legs 12. The support head 14 is fixed in the middle of the crossbeam 13. The end of the push rod 2 is provided with a head 16 that matches the recess 15. Since a wind shell 5 is added to the existing support plate 1, the contact position between the push rod 2 and the support plate 1 needs to be reset. This structure only proposes a connection method between the push rod 2 and the support plate 1.

[0025] The ventilation structure is provided with exhaust grooves 17 distributed on the support plate 1. The exhaust grooves 17 connect to all the air outlets 7 and extend outward along the support plate 1 to connect with the outside. Alternatively, the number of exhaust grooves 17 is the same as the number of air outlets 7, with each air outlet 7 corresponding to one exhaust groove 17 to achieve connection with the outside.

[0026] A reserved groove 18 is provided on the pad 10 at a position corresponding to the exhaust groove 17. The reserved groove 18 can prevent the pad 10 from being embedded in the exhaust groove 17 and causing it to block after being compressed. The pad 10 (2-3cm) is a sponge pad or a cloth pad.

[0027] The above are merely preferred embodiments of this utility model.

Claims

1. A mural support device with drying function for grouting repair of hollow murals, comprising a support plate (1), a threaded top rod (2), and fasteners (3), wherein the fasteners (3) are connected to the top rod (2) via threaded sleeves (4), characterized in that, A fan shell (5) is provided on one side of the support plate (1), and an air inlet (6) is provided on the fan shell (5). A heating chamber is formed between the fan shell (5) and the support plate (1). Multiple air outlets (7) are opened on the support plate (1) inside the heating chamber. The air inlet (6) is connected to a hot air blower (8) through a duct. A support bracket (9) is provided on the side of the support plate (1) where the fan shell (5) is located. The support bracket (9) is connected to the top rod (2). A ventilation structure is provided on the other side of the support plate (1), and a pad layer (10) is provided on the side of the support plate (1) where the ventilation structure is located.

2. A dried wall painting support device for repairing a hollow wall painting grouting according to claim 1, characterized in that, The heating chamber is provided with a vortex flow channel (11), which connects the air inlet (6) and the air outlet (7).

3. A dried wall painting support device for repairing a hollow wall painting grouting according to claim 1, characterized in that, The top support (9) includes legs (12), a cross beam (13) and a top head (14). The top head (14) is provided with a top socket (15). The cross beam (13) is fixed to the top plate (1) by four legs (12). The top head (14) is fixed in the middle of the cross beam (13). The top rod (2) is provided with a top head (16) that matches the top socket (15).

4. The dried wall painting support device for repairing a hollow wall painting by grouting according to claim 1, wherein The ventilation structure consists of exhaust slots (17) distributed on the support plate (1).

5. A mural support device with drying function for grouting repair of hollow murals according to claim 4, characterized in that, A reserved groove (18) is opened on the pad (10) at a position corresponding to the exhaust groove (17).

Citation Information

Patent Citations

  • Restore a spring atress roof -rack of mural painting in ancient times

    CN206801091U