Dry area threshold stone module suitable for aging-adaptive rapid transformation

Abstract

The invention belongs to the technical field of aging-adaptive transformation, and particularly relates to a dry area threshold stone module suitable for aging-adaptive rapid transformation, which comprises a veneer, a self-adhesive magnetic piece, a limiting plate and an adjuster which are sequentially arranged along the vertical direction, wherein one face of the self-adhesion magnetic piece adheres to the back face of the veneer, the other face of the self-adhesion magnetic piece magnetically attracts the limiting plate, the adjustor is installed on the ground in an embedded mode and used for bearing the limiting plate and avoiding cutting wet operation, the transverse folding plate and the longitudinal folding plate are integrally installed on the outer side of the limiting plate, and the transverse folding plate and the longitudinal folding plate are in lap joint to the ground in a bent mode to form a limiting shell. The adjuster comprises a top support, a threaded rod and a bottom support which are sequentially arranged in the axial direction, the bottom support is installed on the ground in an embedded mode, and one end of the threaded rod is fixedly connected to the middle of the top support. Modularized customization is carried out in a factory, on-site cutting wet operation is avoided, compared with traditional operation, multiple construction procedures are reduced, the construction period is shortened, and the labor cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of aging-friendly transformation, and in particular relates to a dry area threshold stone module suitable for rapid aging-friendly transformation. Background Art

[0002] Aging-friendly renovation refers to improving the environment of the elderly through physical space renovation, auxiliary equipment adaptation and intelligent safety monitoring equipment configuration to meet their living needs, so as to improve the safety and convenience of their lives. This renovation generally reduces the risk of falls and provides safety for the elderly by eliminating ground height differences, installing handrails, and anti-slip treatment.

[0003] At present, the market's focus on aging-friendly renovations is still on the installation of equipment and facilities, such as: installing bathroom handrails, adding toilet assistive devices, adding shower assistive devices, etc., with fewer renovations to interior materials, and the main focus is on the long renovation time. Because the height difference of the threshold stone cannot be well solved, the traditional method can only be to dismantle the entire floor and door of the room and re-pave it.

[0004] The common steps for threshold stone renovation are basically to remove the threshold stone, level the ground, re-level it with cement mortar, apply special adhesive for threshold stone, install the threshold stone, etc.

[0005] In the application, it is found that the following problems may occur in the aging-friendly transformation of the ground threshold stone: 1. If the threshold stone is removed, the door and door frame need to be removed and replaced at the same time, and the renovation cost is high.

[0006] 2. The removal of the threshold stone requires the removal of the entire floor of the house, which is time-consuming and labor-intensive.

[0007] 3. The construction method of ground threshold stone is wet operation, which will cause pollution to the construction environment and is not environmentally friendly. Summary of the invention

[0008] The purpose of the present invention is to provide a dry area threshold stone module suitable for rapid transformation for aging, which can be modularly customized in the factory to avoid on-site cutting and wet operations. Compared with traditional operations, it reduces multiple construction processes and saves construction period and labor costs.

[0009] The technical solution adopted by the present invention is as follows: A dry area threshold stone module suitable for rapid renovation for aging, comprising a decorative panel, a self-adhesive magnetic sheet, a limit plate and an adjuster arranged in sequence along the vertical direction; Among them, one side of the self-adhesive magnetic sheet is adhered to the back of the decorative panel, and the other side magnetically attracts the limit plate. The adjuster is pre-embedded and installed on the ground to support the limit plate to avoid wet cutting operations.

[0010] As an optional solution, a transverse folding plate and a longitudinal folding plate are integrally installed on the outer side of the limiting plate. The transverse folding plate and the longitudinal folding plate are both folded and overlapped on the ground to form a limiting shell to place the decorative panel and the self-adhesive magnetic sheet.

[0011] As an optional solution, the adjuster includes a top support, a threaded rod and a bottom support arranged in sequence along the axial direction, the bottom support is pre-buried and installed in the ground, one end of the threaded rod is fixedly connected to the middle of the top support, and the other end is threadedly connected to the middle of the bottom support.

[0012] As an optional solution, a pin hole avoiding the threaded rod is formed on the bottom support, and a hollow hole avoiding the threaded rod is formed on the top support, and both the pin hole and the hollow hole are used to fix the adjuster.

[0013] As an optional solution, a receiving groove and a submerged cone located in the middle of the receiving groove are provided in the middle of the bottom of the base. When the regulator is pre-buried, the sand and ash on the ground are broken by the submerged cone, and the raised sand and ash are accommodated by the receiving groove.

[0014] As an optional solution, the bottom surface of the limit plate is vertically provided with ribs avoiding the adjuster, ratchets located on the bottom surface of the ribs, a movable diagonal brace inserted into the ratchet interval, a magnetic sheet located on the top of the movable diagonal brace, and a leg brace connected to the movable diagonal brace in sequence; Wherein, the two movable diagonal braces are distributed at both ends of the leg brace, and when the adjuster is pre-embedded, the distance between the limit plate and the leg brace is adjusted by changing the angle between the two movable diagonal braces.

[0015] As an optional solution, a friction plate for contacting the ground is fixed to the bottom surface of the leg support, and an elastic band is fixed between the outer sides of the two movable diagonal supports. When the two movable diagonal supports are inserted into the ratchet gap, the elastic deformation of the elastic band is used to pull the tops of the two movable diagonal supports to clamp the ratchet.

[0016] As an optional solution, a limiting ring and a curved rod fixedly connected to the bottom surface of the limiting ring are fixed to the bottom surface of the limiting plate, the limiting ring is externally sleeved with a baffle abutting against the curved rod, and a seat ring for grounding is fixed to the bottom of the baffle.

[0017] As an optional solution, a corrugated groove is provided on the outer edge of the transverse folding plate, and a rubber strip extending into the corrugated groove is provided on the outside of the transverse folding plate, and the rubber strip is used to close the gap between the transverse folding plate and the ground.

[0018] As an optional solution, an annular groove is opened on the outer side of the decorative panel, and a sealing ring with an interference fit with the limiting shell is sleeved at the opening of the groove. The sealing ring is used to close the gap between the limiting shell and the decorative panel to block dust.

[0019] The technical effects achieved by the present invention are: The decorative panels, self-adhesive magnetic sheets, limit plates and adjusters used in the present invention are all customized in the factory according to the construction drawings, and the finished products are standardized and standardized, which is convenient for workers to operate and install on site, avoiding wet cutting operations and reducing garbage. During on-site installation, a ground trench is first excavated at the threshold, and the adjuster is pre-buried and installed in the ground trench. After the limit plate is placed, one side of the self-adhesive magnetic sheet is adhered to the back of the decorative panel and placed in the ground trench together until the other side magnetically attracts the limit plate, which is convenient for being flush with the ground. Compared with traditional operations, it reduces multiple construction processes, saves construction period and labor costs.

[0020] The present invention can operate the limit plate and the leg support respectively with both hands, and the two movable diagonal supports are distributed at both ends of the leg support. The connection is pulled by a rubber nylon belt and can be bent at a large angle. After the two movable diagonal supports are opened, a magnetic sheet is used to adsorb on the interval between the ratchets to serve as a leg, so that support can be provided in places that the adjuster cannot reach. Moreover, the overall weight is lightweight and can be quickly installed by magnetic attraction. After installation, it is pressed against the ground of the trough to form a trapezoidal support structure, and is horizontally limited by the ratchets, so it is not easy to tilt or fall sideways.

[0021] After the regulator is installed in the present invention, the enclosure made of the wire mesh is inserted into the ground groove in a square ring shape, and the seat ring is pressed against the bottom wall. The seat ring can be reinforced with screws. When the limit plate is placed in the ground groove, the limit ring and the curved head rod will be driven to insert into the upper opening of the enclosure. The enclosure is supported at multiple points by the horizontal curved head rod and the longitudinal curved head rod, which makes it convenient for the enclosure to maintain its shape, so as to stably support the side wall and prevent sand and ash from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a cross-sectional view of a dry area threshold stone module in the first embodiment of the present invention; Figure 2 is a front view of the regulator in the first embodiment of the present invention; Figure 3 This is a front view of the dry area threshold stone module in the second embodiment of the present invention; Figure 4 is a bottom view of the limiting plate in the second embodiment of the present invention; Figure 5 is a bottom view of the regulator in the second embodiment of the present invention; Figure 6 is a bottom view of the rib in the second embodiment of the present invention; Figure 7It is a side view of two movable diagonal braces and a leg brace assembled together in the second embodiment of the present invention; Figure 8 is a front view of the limiting plate in the second embodiment of the present invention; Fig. 9 It is a front view of the enclosure in the second embodiment of the present invention; Fig.10 It is an exploded view of the decorative panel and the sealing ring in the second embodiment of the present invention.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Decorative panel; 2. Self-adhesive magnetic sheet; 201. Horizontal folding plate; 202. Vertical folding plate; 3. Limiting plate; 4. Regulator; 401. Bottom support; 402. Top support; 403. Threaded rod; 404. Pin hole; 405. Hollow hole; 406. Submerged cone; 407. Accommodating groove; 5. Rib; 501. Ratchet; 6. Leg support; 601. Movable diagonal support; 602. Magnetic sheet; 603. Friction plate; 604. Elastic belt; 7. Enclosure; 701. Seat ring; 8. Limiting ring; 801. Curved rod; 9. Corrugated groove; 10. Rubber strip; 11. Groove; 12. Sealing ring. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0025] Embodiment 1: like Figure 1-Figure 2 As shown, a dry area threshold stone module suitable for rapid renovation for aging includes a decorative panel 1, a self-adhesive magnetic sheet 2, a limit plate 3 and an adjuster 4 arranged in sequence along the vertical direction. All of them are customized in the factory according to the construction drawings. The processed finished products are standardized and standardized, which is convenient for workers to operate and install on site, avoiding wet cutting operations and reducing garbage. During on-site installation, a ground trench is first excavated at the threshold, and the adjuster 4 is pre-buried and installed in the ground trench to carry the limit plate 3. After the limit plate 3 is placed, the self-adhesive magnetic sheet 2 is adhered to the back of the decorative panel 1 on one side and placed in the ground trench together until the other side magnetically attracts the limit plate 3. The limit plate 3 is made of magnetic metal material to complete the embedding of the decorative panel 1, which is convenient for it to be flush with the ground. In this way, the modular construction method reduces multiple construction processes compared with traditional operations, saving construction period and labor costs.

[0026] See attached Figure 1 and Figure 2In order to keep it flush with the ground, in this embodiment, a transverse folding plate 201 and a longitudinal folding plate 202 are integrally installed on the outer side of the limiting plate 3. The top surfaces of the two transverse folding plates 201 and the top surfaces of the two longitudinal folding plates 202 are both bent and overlapped on the ground to form a limiting shell to place the decorative panel 1 and the self-adhesive magnetic sheet 2, which is convenient for quick insertion installation of the decorative panel 1 and saves time. The transverse folding plate 201 and the longitudinal folding plate 202 can refer to Figure 3 , prefabricated in the factory.

[0027] See attached Figure 2 During the pre-buried construction process, the regulator 4 of this embodiment includes a top support 402, a threaded rod 403 and a bottom support 401 arranged in sequence along the axial direction. First, the trench is excavated, and then the bottom support 401 is fixed to the trench on the ground by screws, and one end of the threaded rod 403 is welded to the middle of the top support 402, and the other end is threadedly connected to the middle of the bottom support 401, so that it can be stably established in the trench. In this way, 4, 6 or more regulators 4 are fixed at intervals to support the limit plate 3 at multiple points.

[0028] See attached Figure 2 In the process of installing the regulator 4, in order to enhance the firmness of the regulator 4, a pin hole 404 avoiding the threaded rod 403 is opened on the bottom bracket 401 in this embodiment, and screws can be inserted along the plurality of pin holes 404 respectively. For example, 10 pin holes 404 are used in this embodiment to tighten the regulator 4 from different positions respectively, and a hollow hole 405 avoiding the threaded rod 403 is opened on the top bracket 402. The pin hole 404 and the hollow hole 405 are both used to fix the regulator 4, and a pointed nail is installed on the bottom surface of the limiting plate 3, which is vertically penetrated into the pin hole 404 to strengthen the horizontal connection between the limiting plate 3 and the regulator 4.

[0029] The working principle of the present invention is as follows: during construction, a ground groove is first excavated at the threshold, and the adjuster 4 is pre-buried and installed in the ground groove to carry the limit plate 3. After the limit plate 3 is placed, one side of the self-adhesive magnetic sheet 2 is adhered to the back of the decorative panel 1, and placed in the ground groove together until the other side magnetically attracts the limit plate 3, wherein the limit plate 3 is made of magnetic metal material to complete the embedding of the decorative panel 1, so that it is convenient to be flush with the ground.

[0030] Embodiment 2: The ground trench excavated on the ground generally crosses the entire dry area threshold, and the span is generally 1.2m. If the regulator 4 is to be filled, on the one hand, the cost is high, and on the other hand, it takes up space and it is difficult to leave a construction interval. However, reducing the number of regulators 4 will reduce the support area of ​​the threshold stone. When the user steps on the area without support, cracks or collapse may occur. For this reason, this embodiment is improved on the basis of embodiment one.

[0031] like Figure 3-Figure 10As shown, a dry area threshold stone module suitable for rapid transformation for aging includes a rib 5 vertically arranged on the bottom surface of a limit plate 3 to avoid an adjuster 4, a ratchet 501 located on the bottom surface of the rib 5, a movable diagonal brace 601 inserted into the interval of the ratchet 501, a magnetic sheet 602 embedded in the top of the movable diagonal brace 601, and a leg brace 6 connected to the movable diagonal brace 601. All of these components are customized in the factory according to the construction drawings, and the finished products are standardized and standardized, which is convenient for workers to operate and install on site, avoiding wet cutting operations and reducing garbage. During installation, the construction personnel can use both hands to operate the limit plate 3 and the leg support 6 respectively, distribute the two movable diagonal supports 601 at both ends of the leg support 6, and the connection is pulled by a rubber nylon belt, which can be bent at a large angle. After the two movable diagonal supports 601 are opened, the magnetic sheet 602 is adsorbed on the interval between the ratchet teeth 501 as a leg, which can be supported in places where the adjuster 4 cannot reach, and the overall weight is lightweight, and it can be quickly installed by magnetic attraction. After installation, it is against the ground of the trough to form a trapezoidal support structure, and is horizontally limited by the ratchet teeth 501, which is not easy to tilt or fall sideways, and effectively prevents the threshold stone module from cracking or collapsing; When the adjuster 4 is embedded, increasing the angle between the two movable diagonal braces 601 can reduce the distance between the limit plate 3 and the leg brace 6, or reducing the angle between the two movable diagonal braces 601 can increase the distance between the limit plate 3 and the leg brace 6. In this way, by changing the angle between the two movable diagonal braces 601 to adjust the distance between the limit plate 3 and the leg brace 6, it is possible to adapt to trenches of different depths, and the construction selectivity is higher.

[0032] See attached Figure 4 , Figure 5 and Figure 8 After the ground trench is broken, the sand and ash layer on the ground will be exposed. In this embodiment, a receiving groove 407 and a submerged sharp cone 406 located in the middle of the receiving groove 407 are set in the middle of the bottom of the base 401. When the regulator 4 is pre-buried, the sand and ash on the ground are broken by the submerged sharp cone 406, and the raised sand and ash are accommodated by the receiving groove 407, so that it can be deeply connected with the ground, and the reliability of installing the regulator 4 is higher.

[0033] After the trench is excavated, the sand and ash under the floor tiles will be exposed on its side walls, and the position will not be reinforced. Once under load, the sand and ash are likely to become loose or even fall off. In severe cases, it will cause the threshold stone and adjacent floor tiles to become hollow.

[0034] See attached Figure 3 , Figure 8 and Fig. 9In order to support the side wall, in this embodiment, a limiting ring 8 and a curved rod 801 welded to the bottom surface of the limiting plate 3 are welded on the bottom surface of the limiting plate 3, and a fence 7 in contact with the curved rod 801 is sleeved on the outside of the limiting ring 8. After the regulator 4 is installed, the fence 7 made of wire mesh is inserted into the ground groove in a square ring shape, and a seat ring 701 for grounding is welded at the bottom of the fence 7 to be close to the bottom wall. The seat ring 701 can be reinforced with screws. When the limiting plate 3 is placed in the ground groove, the limiting ring 8 and the curved rod 801 will be driven to insert into the opening of the fence 7. The fence 7 is supported at multiple points by five horizontal curved rods 801 and three longitudinal curved rods 801, which makes it convenient for the fence 7 to maintain its shape, so as to stably support the side wall and prevent sand and ash from falling off.

[0035] See attached Figure 4 and Figure 7 In this embodiment, a friction plate 603 for contacting the ground is bonded to the bottom surface of the leg support 6. The friction plate 603 made of frosted ceramic material can increase the friction when the leg support 6 is grounded, and is not easy to slide horizontally. An elastic band 604 is bonded between the outer sides of the two movable diagonal supports 601. When the two movable diagonal supports 601 are inserted into the interval of the ratchet teeth 501, the elastic deformation of the elastic band 604 is used to pull the top of the two movable diagonal supports 601 to clamp the ratchet teeth 501. There is no need to support the two movable diagonal supports 601 with hands, which makes it convenient to free up hands to place the limit plate 3.

[0036] See attached Figure 4 and Fig.10 After the decorative panel 1 is completely inserted into the ground groove, in this embodiment, a ring-shaped groove 11 is opened on the outer side of the decorative panel 1 to install a seal, and a sealing ring 12 that is interference fit with the limit shell is sleeved at the opening of the groove 11 as a seal. The sealing ring 12 is used to close the gap between the limit shell and the decorative panel 1 to block dust and reduce gap pollution.

[0037] See attached Figure 3 , Figure 4 and Figure 8 The outer edges of the transverse folding plate 201 and the longitudinal folding plate 202 are both provided with corrugated grooves 9, and the outside of the transverse folding plate 201 is provided with a rubber strip 10 extending into the corrugated groove 9. When the transverse folding plate 201 and the longitudinal folding plate 202 fall with the limiting plate 3, they can stick to the ground, and then glass glue is applied to the outer edges of the two, and the rubber strip 10 is formed after hardening. The rubber strip 10 is used to close the gap between the transverse folding plate 201 and the ground, and stick it firmly to prevent it from warping.

[0038] The working principle of the present invention is as follows: when working, first, the ribs 5, ratchets 501, movable diagonal braces 601, magnetic sheets 602, and leg braces 6 are all customized in the factory according to the construction drawings.

[0039] During installation, the construction workers can use both hands to operate the limit plate 3 and the leg support 6 respectively, distribute the two movable diagonal supports 601 at both ends of the leg support 6, and the connection is pulled by a rubber nylon belt, which can be bent at a large angle. After opening the two movable diagonal supports 601, the magnetic sheet 602 is adsorbed on the interval between the ratchet teeth 501 to serve as a support leg. It can provide support in places that the adjuster 4 cannot reach, and the overall weight is lightweight. It can be quickly installed by magnetic attraction. After installation, it is pressed against the ground of the trough to form a trapezoidal support structure, which is horizontally limited by the ratchet teeth 501.

[0040] After installing the regulator 4, the enclosure 7 made of wire mesh is inserted into the ground trough in a square ring shape. A seat ring 701 for grounding is welded on the bottom of the enclosure 7 to fit closely to the bottom wall. The seat ring 701 can be reinforced with screws. When the limit plate 3 is put into the ground trough, the limit ring 8 and the curved rod 801 will be driven to insert into the opening of the enclosure 7. The enclosure 7 is supported at multiple points by five horizontal curved rods 801 and three longitudinal curved rods 801, which makes it easier for the enclosure 7 to maintain its shape, so as to stably support the side walls and prevent sand and ash from falling off.

[0041] The above is only an optional implementation of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A dry area threshold stone module suitable for rapid renovation for aging, characterized in that: It comprises a decorative panel (1), a self-adhesive magnetic sheet (2), a limit plate (3) and an adjuster (4) which are arranged in sequence along the vertical direction; Wherein, one side of the self-adhesive magnetic sheet (2) is bonded to the back of the decorative panel (1), and the other side magnetically attracts the limit plate (3); the adjuster (4) is pre-embedded in the ground and is used to support the limit plate (3) to avoid wet cutting operations.

2. A dry area threshold stone module suitable for rapid aging-friendly transformation according to claim 1, characterized in that: A transverse folding plate (201) and a longitudinal folding plate (202) are integrally mounted on the outer side of the limiting plate (3); the transverse folding plate (201) and the longitudinal folding plate (202) are both folded and overlapped on the ground to form a limiting shell for placing the decorative panel (1) and the self-adhesive magnetic sheet (2).

3. The dry area threshold stone module suitable for rapid aging-friendly transformation according to claim 1 is characterized by: The regulator (4) comprises a top support (402), a threaded rod (403) and a bottom support (401) which are arranged in sequence along the axial direction; the bottom support (401) is pre-buried and installed on the ground; one end of the threaded rod (403) is fixedly connected to the middle of the top support (402) and the other end is threadedly connected to the middle of the bottom support (401).

4. The dry area threshold stone module suitable for rapid aging-friendly transformation according to claim 3 is characterized by: The bottom support (401) is provided with a pin hole (404) that avoids the threaded rod (403), and the top support (402) is provided with a hollow hole (405) that avoids the threaded rod (403). Both the pin hole (404) and the hollow hole (405) are used to fix the regulator (4).

5. The dry area threshold stone module suitable for rapid aging-friendly transformation according to claim 3 is characterized by: A receiving groove (407) and a submerged cone (406) located in the middle of the receiving groove (407) are provided in the middle of the bottom of the base (401). When the regulator (4) is pre-buried, the submerged cone (406) breaks the sand and ash on the ground, and the receiving groove (407) accommodates the raised sand and ash.

6. The dry area threshold stone module suitable for rapid aging-friendly transformation according to claim 1 is characterized by: The bottom surface of the limit plate (3) is vertically provided with a rib (5) avoiding the adjuster (4), a ratchet (501) located on the bottom surface of the rib (5), a movable diagonal brace (601) inserted into the interval between the ratchet (501), a magnetic sheet (602) located on the top of the movable diagonal brace (601), and a leg brace (6) connected to the movable diagonal brace (601); The two movable diagonal braces (601) are distributed at both ends of the leg brace (6), and when the adjuster (4) is pre-buried, the distance between the limit plate (3) and the leg brace (6) is adjusted by changing the angle between the two movable diagonal braces (601).

7. The dry area threshold stone module suitable for rapid aging-friendly transformation according to claim 6 is characterized by: A friction plate (603) for contacting the ground is fixed to the bottom surface of the leg support (6), and an elastic band (604) is fixed between the outer sides of the two movable diagonal supports (601). When the two movable diagonal supports (601) are inserted into the interval between the ratchet teeth (501), the elastic deformation of the elastic band (604) is used to pull the tops of the two movable diagonal supports (601) to clamp the ratchet teeth (501).

8. The dry area threshold stone module suitable for rapid aging-friendly transformation according to claim 1 is characterized by: A limiting ring (8) and a curved rod (801) fixedly connected to the bottom surface of the limiting plate (3) are fixed to the bottom surface of the limiting ring (8); a baffle (7) abutting against the curved rod (801) is sleeved on the outside of the limiting ring (8); a seat ring (701) for grounding is fixed to the bottom of the baffle (7).

9. The dry area threshold stone module suitable for rapid aging-friendly transformation according to claim 2 is characterized by: The outer edge of the transverse folding plate (201) is provided with a corrugated groove (9), and the outside of the transverse folding plate (201) is provided with a rubber strip (10) extending into the interior of the corrugated groove (9), and the rubber strip (10) is used to close the gap between the transverse folding plate (201) and the ground.

10. The dry area threshold stone module suitable for rapid aging-friendly transformation according to claim 2, characterized in that: An annular groove (11) is provided on the outside of the decorative panel (1), and a sealing ring (12) which is interference-fitted with the limiting shell is sleeved at the opening of the groove (11), and the sealing ring (12) is used to close the gap between the limiting shell and the decorative panel (1) to block dust.

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