Projection curtain wall device

By designing an automatic cleaning projection curtain wall device, the problems of dust accumulation and shaking of the projection screen are solved, efficient cleaning and stable projection effects are achieved, and the convenience of use is improved.

CN223320744UActive Publication Date: 2025-09-09HEILONGJIANG INST OF TECH
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Patent Information

Application Number
CN202422713234.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-09-09
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

Existing projection screens tend to accumulate dust after being used for a period of time, resulting in reduced image clarity, low manual cleaning efficiency, and the screen may shake or tilt, causing the projected image to distort.

Method used

A projection curtain wall device was designed, which includes components such as a curtain, a cleaning roller, a winding rod, and a fixed shell. The curtain is automatically rolled up and unrolled by a motor, and the cleaning roller is used to automatically clean the curtain surface during the winding process. Magnetic sheets and iron strips are used to keep the curtain vertical to prevent shaking.

Benefits of technology

It realizes automatic cleaning of the screen, improves cleaning efficiency, avoids dust accumulation, ensures picture clarity and projection effect, and is easy to operate and reduces labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

A projection curtain wall device comprises a curtain, a cleaning roller, a rolling rod, a fixing shell, a blocking shell, a pressing plate, a pull rod and a supporting block, the lower end of the curtain is connected with a sinking plate, the sinking plate is connected with a magnetic attraction piece, the magnetic attraction piece is attracted to a strip-shaped iron plate, the strip-shaped iron plate is connected with a wall, the upper end of the curtain is connected with the rolling rod, the rolling rod is provided with an insertion plate groove, and the curtain is provided with an insertion plate. The winding rod is connected with the fixed shell through a driving rod, the driving rod is sequentially connected with the fixed shell and the winding rod, the driving rod is connected with a motor, the motor is connected with the fixed shell, the fixed shell is connected with a wall body, the exterior of the fixed shell is connected with a blocking shell, a baffle is arranged on the lower portion of the fixed shell, and the baffle is divided into an outer baffle and an inner baffle; the inner baffle is provided with a mounting groove, the mounting groove is matched with the cleaning roller, the mounting groove is connected with the cleaning roller, and the cleaning roller is attached to the curtain.
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Description

Technical Field

[0001] The utility model relates to the field of curtain walls, in particular to a projection curtain wall device. Background Art

[0002] The existing patent (publication number: CN214011714U) proposes a ring screen projection device, including a projection hall, a curved curtain wall is provided in the projection hall, a projection room is provided on one side of the projection hall, a main control server is provided in the projection room, a plurality of projection devices and a plurality of sound effect devices are provided in the projection hall, the plurality of projection devices and the plurality of sound effect devices are electrically connected to the main control server, a fixing frame is provided on the curved curtain wall, the fixing frame includes two parallel curved metal frames, a projection screen is fixed on the two curved metal frames, a winding device is provided at the end of the projection screen, and the end of the projection screen is wound in the winding device; however, this device lacks a cleaning device when winding the screen, and dust will accumulate on the surface of the screen after being used for a period of time, reducing the picture clarity and affecting the projection viewing effect. Manual cleaning has low work efficiency due to the large area of ​​the screen, which has disadvantages. Summary of the Invention

[0003] The utility model aims to solve the above-mentioned deficiencies in the prior art and provides a projection screen device which ensures vertical projection of the screen and prevents the screen from shaking or tilting, which would cause deformation of the projected image. In addition, the utility model automatically cleans the surface of the screen during the rolling-up process, thereby reducing the workload of operators, improving the efficiency of cleaning the projection screen wall, avoiding dust accumulation on the screen surface, improving picture clarity, and ensuring the projection viewing effect. In addition, the cleaning roller is easy to disassemble and assemble, does not require the use of tools, and is easy to operate.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A projection curtain wall device includes a curtain, a cleaning roller, a winding rod, a fixed shell, a sealing shell, a pressing plate, a pulling rod, and a supporting block. The lower end of the curtain is connected to a sinking plate, the sinking plate is connected to a magnetic sheet, the magnetic sheet is attracted to a strip iron plate, the strip iron plate is connected to the wall, the upper end of the curtain is connected to the winding rod, the winding rod has a plug-in slot, the curtain has a plug-in plate, the plug-in plate is adapted to the plug-in slot, the plug-in plate is connected to the plug-in slot, the winding rod is connected to the fixed shell through a driving rod, the driving rod is connected to the fixed shell and the winding rod in turn, the driving rod is connected to a motor, the motor is connected to the fixed shell, the fixed shell is connected to the wall, the outside of the fixed shell is connected to the sealing shell, the lower part of the fixed shell is provided with a baffle, the baffle is divided into an outer baffle and an inner baffle, the inner baffle has an installation slot, the installation slot is adapted to the cleaning roller, the installation slot is connected to the cleaning roller, and the cleaning roller fits the curtain.

[0006] The utility model provides slideways on both sides of the fixed shell, the slideways are adapted to the sliders, the sliders are connected to the slideways, the sliders slide in the slideways, the outer ends of the sliders are connected to spring bars, the spring bars are connected to the blocking shell, the inner ends of the sliders are provided with shaft rods, the fixed shells have shaft rod through-holes, the shaft rods are adapted to the shaft rod through-holes, the shaft rods pass through the shaft rod through-holes, and the shaft rods are connected to the cleaning rollers.

[0007] The utility model provides a pull rod with a shift rod on both sides, a fixed shell with a lower sliding hole, a slider with a shift rod groove, the shift rod groove and the lower sliding hole are adapted to the shift rod, the shift rod passes through the lower sliding hole, the inner end of the shift rod is connected to the shift rod groove, the outer end of the shift rod is provided with a positioning rod, the positioning rod is connected to the support block and the locking sleeve in sequence, and the outer end of the locking sleeve is connected to the pressing plate. Beneficial effects

[0008] The upper end of the screen of the utility model is fixedly connected to the reeling rod, and is driven by the motor and the driving rod, so that the screen is automatically rolled up with the reeling rod as the center, which increases the flexibility of the projection screen wall. The sinking plate at the lower end of the screen can increase the weight of the bottom of the screen, so that it can maintain a stable verticality during the rolling and unrolling process. At the same time, the magnetic sheet is attracted to the strip iron plate to position and support the screen, so that the screen remains vertical, preventing it from shaking or tilting, which may cause deformation of the projected image, and ensuring the projection viewing effect.

[0009] The utility model provides that the shaft rods on both sides are inserted into the hollow holes of the cleaning roller to support it. The cleaning roller moves with the screen being rolled up and unrolled, and automatically rolls and cleans its surface, which reduces the workload of the operators and improves the efficiency of the projection screen wall cleaning operation. At the same time, it avoids dust accumulation on the screen surface, which reduces the clarity of the picture and ensures the projection viewing effect.

[0010] The cleaning roller of the utility model is convenient to disassemble and assemble, and does not require special disassembly tools. When the cleaning roller is disassembled, the locking sleeve is pushed to move by pressing the pressing plate, the locking rod is disengaged from the outer locking groove, and the pull rod is pulled outward until the lever is in contact with the inner surface of the outer baffle plate. The spring bar is compressed, causing the shaft rod to fully retract into the fixed shell, and the connection fulcrum between the cleaning roller and the fixed shell disappears. Then the pressing plate is released to cause the locking rod to be embedded in the inner locking groove, and the shaft rod is supported in the retracted state, and the cleaning roller can be removed at this time. It is cleaned and replaced regularly. When the cleaning roller is installed, it is placed in the installation groove and the pressing plate is pressed again to push the locking sleeve to move to the position, the locking rod is disengaged from the inner locking groove, causing the slider to be pushed by the elastic tension of the spring bar to automatically return to the position rod and fit the inner baffle plate, and the shaft rod is inserted into the hollow hole of the cleaning roller, and the fixing shell is added to its installation fulcrum. Then the pressing plate is released to cause the locking rod to be embedded in the outer locking groove, and the shaft rod supporting state is supported and fixed, and the installation is completed.

[0011] The utility model ensures vertical projection of the screen, prevents the screen from shaking and tilting, which causes deformation of the projected image, and automatically cleans the surface of the screen during the rolling process, thereby reducing the workload of operators, improving the efficiency of cleaning the projection curtain wall, avoiding dust accumulation on the screen surface, improving picture clarity, and ensuring the projection viewing effect. The cleaning roller is easy to disassemble and assemble, does not require the use of tools, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of the fixed shell and cleaning roller described in the present utility model.

[0013] Figure 2 This is a schematic diagram of the lock sleeve structure of the present utility model.

[0014] Figure 3 This is a schematic diagram of the cleaning roller support structure described in the present utility model.

[0015] Figure 4 This is a structural sectional view of a projection curtain wall device described in the utility model.

[0016] Figure 5 This is a side sectional view of a projection curtain wall device structure described in the utility model.

[0017] Figure 6 This is a cross-sectional view of the connection structure of the fixed shell and the cleaning roller according to the present invention.

[0018] Figure 7 This is a schematic diagram of the fixed shell structure described in the utility model.

[0019] Figure 8 The utility model Figure 1 A magnified view of the local structure.

[0020] Figure 9 The utility model Figure 3 A magnified view of the local structure.

[0021] Figure 10 The utility model Figure 6 A magnified view of the local structure. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments:

[0023] Example 1:

[0024] A projection curtain wall device includes a curtain 01, a cleaning roller 02, a winding rod 03, a fixed shell 04, a sealing shell 05, a pressing plate 29, a pull rod 27, and a support block 35. The lower end of the curtain 01 is connected to a sinking plate 08, the sinking plate 08 is connected to a magnetic sheet 07, the magnetic sheet 07 is attracted to a strip iron plate 06, and the strip iron plate 06 is connected to the wall. The upper end of the curtain 01 is connected to the winding rod 03, the winding rod 03 has a plug-in slot 34, the curtain 01 has a plug-in plate 33, the plug-in plate 33 is adapted to the plug-in slot 34, the plug-in plate 33 is connected to the plug-in slot 34, the winding rod 03 is connected to the fixed shell 04 through a driving rod 09, the driving rod 09 is sequentially connected to the fixed shell 04 and the winding rod 03, the driving rod 09 is connected to a motor 10, the motor 10 is connected to the fixed shell 04, the fixed shell 04 is connected to the wall, and the outside of the fixed shell 04 is connected to the sealing shell 05. The lower part of the fixed shell 04 is provided with a baffle 19, which is divided into an outer baffle 191 and an inner baffle 192. The inner baffle 192 has a mounting groove 17, which is adapted to the cleaning roller 02. The mounting groove 17 is connected to the cleaning roller 02, and the cleaning roller 02 is attached to the screen 01. The upper end of the screen 01 is fixedly connected to the winding rod 03, and is driven by the motor 10 and the drive rod 09, so that the screen 01 is automatically rolled up with the winding rod 03 as the center, increasing the flexibility of the projection screen wall. The sinking plate 08 at the lower end of the screen 01 can increase the weight of the bottom of the screen 01, so that it maintains a stable verticality during the rolling process, and the magnetic sheet 07 is attracted to the strip iron plate 06 to position and support the screen 01, so that the screen 01 remains vertical, preventing it from shaking or tilting, which causes the projection image to be deformed, thereby ensuring the projection viewing effect.

[0025] Example 2:

[0026] The fixed shell 04 of the present invention has slideways 13 on both sides, the slideways 13 are adapted to the sliders 14, the sliders 14 are connected to the slideways 13, the sliders 14 slide in the slideways 13, the outer ends of the sliders 14 are connected to the spring bars 12, the spring bars 12 are connected to the blocking shell 05, the inner ends of the sliders 14 have shaft rods 15, the fixed shell 04 has shaft rod through-holes 16, the shaft rods 15 are adapted to the shaft rod through-holes 16, the shaft rods 15 pass through the shaft rod through-holes 16, the shaft rods 15 are connected to the cleaning rollers 02, the shaft rods 15 on both sides are inserted into the hollow holes of the cleaning rollers 02 to support them, the cleaning rollers 02 move with the screen 01 being rolled up and unrolled, and automatically roll and clean its surface, reducing the workload of the operators, improving the efficiency of the projection curtain wall cleaning operation, and avoiding dust accumulation on the surface of the screen 01, reducing the picture clarity, and ensuring the projection viewing effect.

[0027] Example 3:

[0028] The pull rod 27 of the present invention has a shift rod 20 on both sides, the fixed shell 04 has a downward sliding hole 21, and the slider 14 has a shift rod groove 22. The shift rod groove 22 and the downward sliding hole 21 are adapted to the shift rod 20, and the shift rod 20 passes through the downward sliding hole 21. The inner end of the shift rod 20 is connected to the shift rod groove 22, and the outer end of the shift rod 20 has a positioning rod 28. The positioning rod 28 is connected to the support block 35 and the locking sleeve 24 in sequence. The outer end of the locking sleeve 24 is connected to the pressing plate 29. The cleaning roller 02 is easy to disassemble and assemble, and no special disassembly tools are required. When the cleaning roller 02 is disassembled, the locking sleeve 24 is pushed to move to the position by pressing the pressing plate 29, and the locking rod 25 is disengaged from the outer locking groove 26, and the pull rod 27 is pulled outward until the shift rod 20 is in contact with the inner surface of the outer baffle 191, and the spring bar 12 is compressed, causing the shaft 15 to completely retract to When the cleaning roller 02 is installed, it is placed in the installation groove 17, and the locking sleeve 24 is pushed to move to the position where the locking rod 25 is disengaged from the inner lock groove 26, causing the slider 14 to be pushed by the elastic tension of the spring bar 12 and automatically reset to the position where the positioning rod 28 is fitted with the inner baffle 192. The shaft 15 is inserted into the hollow hole of the cleaning roller 02, and the fixed shell 04 is added to its installation fulcrum. Then the pressing plate 29 is released to cause the locking rod 25 to be embedded in the outer lock groove 26, and the supporting state of the shaft 15 is supported to complete the installation.

[0029] Example 4:

[0030] The lock sleeve 24 of the utility model passes through the support block 35, the lock sleeve 24 is connected to one end of the compression spring 23, the other end of the compression spring 23 is connected to the fixed shell 04, the fixed shell 04 is connected to the support block 35, the support block 35 has a side sliding hole 30, the lock sleeve 24 has a limit rod hole 32, the limit rod hole 32 and the side sliding hole 30 are adapted to the limit rod 31, the limit rod 31 passes through the side sliding hole 30 and the limit rod hole 32 in sequence, the limit rod 31 is connected to the lock sleeve 24, the lock sleeve 24 is fitted with the positioning rod 28, the positioning rod 28 has a lock groove 26, the lock The sleeve 24 has a locking rod 25, which is adapted to the locking slot 26. The locking rod 25 is connected to the locking slot 26. This device ensures that the screen 01 is projected vertically, prevents the screen 01 from shaking or tilting, and causes the projected image to be deformed. At the same time, during the rolling process of the screen 01, its surface is automatically cleaned, which reduces the workload of the operators, improves the efficiency of the projection curtain wall cleaning operation, avoids dust accumulation on the surface of the screen 01, improves the picture clarity, and ensures the projection viewing effect. The cleaning roller 02 is easy to disassemble and assemble, does not require the use of tools, and is easy to operate.

[0031] Example 5:

[0032] Installation steps: First, assemble the fixed shell 04 structure, first place the plug-in plate 33 into the plug-in plate slot 34, and fix it to the winding rod 03, then wind the curtain 01 around the winding rod 03, then place the winding rod 03 and the curtain 01 into the fixed shell 04, and support and connect them to the fixed shell 04 through the driving rod 09, and the sinking plate 08 passes through the opening at the bottom of the fixed shell 04, then install and fix the motor 10 to the outside of the fixed shell 04, and drive the motor 10 to the driving rod 09, then place the slider 14 and the spring bar 12 into the slide 13 in turn, and the shaft 15 passes through the shaft through-hole 16, the lever slot 22 corresponds to the lower hole 21, the inner end of the spring bar 12 is fixed to the slider 14, finally place the sealing shell 05 outside the fixed shell 04, and fix it to it, and the outer end of the spring bar 12 fits with the sealing shell 05, completing the fixed shell 04 structure After the structure is assembled, the control structure of the shaft rod 15 is assembled. First, the locking sleeve 24 is passed through the support block 35, and the side sliding hole 30 corresponds to the position of the limit rod hole 32. Then the limit rod 31 is passed through the side sliding hole 30 and the limit rod hole 32 in sequence, and the limit rod 31 is fixedly connected to the locking sleeve 24. Then the pull rod 27 is placed outside the support block 35, and the positioning rod 28 is passed through the support block 35 and the locking sleeve 24 in sequence. The locking rod 25 is embedded in the lock groove 26, and then The compression spring 23 is placed in the fixed shell 04 and fixedly connected to it. Then the support block 35 is installed and fixed to the lower part of the fixed shell 04, and the locking sleeve 24 is pressed against the compression spring 23. The lever 20 passes through the lower sliding hole 21 and is placed in the lever groove 22 and fixedly connected to 14. Finally, the cleaning roller 02 is placed in the mounting groove 17. The outer surface of the cleaning roller 02 is fitted with the inner surface of the inner baffle 192, and the shaft 15 is inserted into the hollow hole of the cleaning roller 02 to complete the installation.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A projection curtain wall device, characterized in that : It includes a screen (01), a cleaning roller (02), a reeling rod (03), a fixed shell (04), a blocking shell (05), a pressing plate (29), a pull rod (27), and a support block (35). The lower end of the screen (01) is connected to a sinking plate (08), the sinking plate (08) is connected to a magnetic sheet (07), the magnetic sheet (07) is attracted to a strip iron plate (06), and the strip iron plate (06) is connected to a wall. The upper end of the screen (01) is connected to the reeling rod (03), the reeling rod (03) has a plug-in slot (34), the screen (01) has a plug-in plate (33), the plug-in plate (33) is adapted to the plug-in slot (34), the plug-in plate (33) is connected to the plug-in slot (34), the reeling rod (01) is connected to the plug-in slot (34), and the reeling rod (01) is connected to the plug-in slot (34). 3) The fixed shell (04) is connected via a driving rod (09), the driving rod (09) is sequentially connected to the fixed shell (04) and the reeling rod (03), the driving rod (09) is connected to the motor (10), the motor (10) is connected to the fixed shell (04), the fixed shell (04) is connected to the wall, the fixed shell (04) is externally connected to the blocking shell (05), the lower portion of the fixed shell (04) is provided with a baffle (19), the baffle (19) is divided into an outer baffle (191) and an inner baffle (192), the inner baffle (192) has a mounting groove (17), the mounting groove (17) is adapted to the cleaning roller (02), the mounting groove (17) is connected to the cleaning roller (02), and the cleaning roller (02) is attached to the curtain (01).

2. A projection curtain wall device according to claim 1, characterized in that The fixed shell (04) has slideways (13) on both sides, the slideways (13) are adapted to the slider (14), the slider (14) is connected to the slideways (13), the slider (14) slides in the slideways (13), the outer end of the slider (14) is connected to the spring bar (12), the spring bar (12) is connected to the blocking shell (05), the inner end of the slider (14) has a shaft (15), the fixed shell (04) has a shaft through-hole (16), the shaft (15) is adapted to the shaft through-hole (16), the shaft (15) passes through the shaft through-hole (16), and the shaft (15) is connected to the cleaning roller (02).

3. A projection curtain wall device according to claim 2, characterized in that : The pull rod (27) has a shift rod (20) on both sides, the fixed shell (04) has a downward hole (21), the slider (14) has a shift rod groove (22), the shift rod groove (22) and the downward hole (21) are adapted to the shift rod (20), the shift rod (20) passes through the downward hole (21), the inner end of the shift rod (20) is connected to the shift rod groove (22), the outer end of the shift rod (20) has a positioning rod (28), the positioning rod (28) is connected to the support block (35) and the lock sleeve (24) in sequence, and the outer end of the lock sleeve (24) is connected to the pressing plate (29).

4. A projection curtain wall device according to claim 3, characterized in that The locking sleeve (24) passes through the support block (35), the locking sleeve (24) is connected to one end of the compression spring (23), the other end of the compression spring (23) is connected to the fixed shell (04), the fixed shell (04) is connected to the support block (35), the support block (35) has a side sliding hole (30), the locking sleeve (24) has a limit rod hole (32), the limit rod hole (32), the side sliding hole (30) and the limit rod (31) are adapted, the limit rod (31) passes through the side sliding hole (30) and the limit rod hole (32) in sequence, the limit rod (31) is connected to the locking sleeve (24), the interior of the locking sleeve (24) fits the positioning rod (28), the positioning rod (28) has a locking groove (26), the locking sleeve (24) has a locking rod (25), the locking rod (25) is adapted to the locking groove (26), and the locking rod (25) is connected to the locking groove (26).

Citation Information

Patent Citations

  • Circular screen projection device

    CN214011714U