A raised floor with adjustable open area

Abstract

The utility model discloses a kind of adjustable open-pore rate's elevated floor, including floor and the support column being set in bottom, the floor top is spread with multiple through holes, bottom is equipped with air vent, and the adjusting device for adjusting the open-pore rate of through hole is slidably connected in floor, and multiple convex upright posts capable of shielding through hole are equipped on adjusting device;The number of convex upright post is less than the number of through hole;Adjusting device includes connecting piece slidably connected in floor, and convex upright post is arranged on connecting piece;Connecting piece is equipped with multiple hollow areas in the periphery of convex upright post;Adjusting device is equipped with the pull handle that it moves, and pull handle penetrates floor top;This elevated floor can avoid that part of air vent position is completely shielded during adjusting process.

Description

Technical Field

[0001] This utility model relates to raised floors for cleanrooms, and more particularly to a raised floor with an adjustable perforation ratio. Background Technology

[0002] Traditional raised floor systems are mainly assembled from components such as scaffolds, beams, and panels. They are commonly used in cleanroom interior systems and are an indispensable part of cleanroom construction. Their core structure uses adjustable support scaffolds to raise the panels above the building floor, creating a raised floor space. This design not only effectively conceals wiring but also provides strong support for airflow circulation within the cleanroom. The system's functional design is mainly reflected in the following two aspects: First, the raised floor provides standardized space for power and communication lines, water supply and drainage pipes, and air conditioning systems, greatly improving space utilization efficiency. Second, its unique air circulation system can circulate clean air, after it has passed through a high-efficiency filter at the top of the cleanroom, through return air vents in the raised floor and then through return air ducts, forming a highly efficient airflow circulation system, thereby ensuring that the air cleanliness fully meets the stringent requirements of industrial production.

[0003] Chinese utility model patent CN203441050U discloses a raised floor airflow regulating device and a raised floor system. The device, designed to ensure uniform and stable airflow velocity and avoid affecting the cleanliness of cleanroom air, includes: a fixed plate with multiple ventilation openings for airflow; a movable plate movably mounted on the fixed plate and opposite to it, composed of multiple spaced-apart perforated plates, each corresponding to a ventilation opening; and an automatic adjustment mechanism for adjusting the relative position of the movable plate and the fixed plate to regulate the opening ratio of the ventilation openings. This utility model is primarily used in raised floors in cleanrooms.

[0004] While the aforementioned device can adjust the airflow rate, its ventilation openings are spaced out, preventing ventilation between adjacent openings. This reduces overall ventilation efficiency. Furthermore, it adjusts the opening ratio of the ventilation openings via a movable plate. As the plate moves, it first completely blocks one row of openings, then moves forward to block a portion of the next row. Although ventilation is maintained during this process, the openings in the area the plate passes through are completely blocked, which also reduces ventilation efficiency. Summary of the Invention

[0005] Purpose of the utility model: The purpose of this utility model is to provide an adjustable raised floor with an adjustable opening ratio that can prevent some ventilation holes from being completely blocked during the adjustment process.

[0006] Technical solution: The present invention provides an adjustable open area floor, comprising a floor and support columns at the bottom. The top of the floor is covered with multiple through holes, and the bottom is provided with ventilation openings. An adjustment device for adjusting the open area ratio of the through holes is slidably connected inside the floor. The adjustment device is provided with multiple protruding columns that can cover the through holes.

[0007] By sliding the adjustment device within the floor, and having multiple raised columns on the adjustment device that can block the through holes, the through holes can be blocked by the raised columns during the sliding process of the adjustment device. Because the columns are raised and there are gaps between them, it can prevent all the through holes in the area through which the adjustment device moves from being completely blocked, thereby preventing the increase in airflow resistance and the reduction in ventilation efficiency caused by a significant reduction in the effective ventilation area.

[0008] Preferably, the number of protruding posts is less than the number of through holes.

[0009] Having fewer raised columns than through holes can save manufacturing costs and reduce resistance during the movement of the adjustment device.

[0010] Preferably, the adjusting device includes a connector that is slidably connected to the floor, and a raised column is provided on the connector.

[0011] Preferably, the connector has multiple hollow areas around the protruding column.

[0012] The connector has multiple hollow areas around the raised column, allowing airflow to pass directly through the hollow areas and reducing airflow resistance.

[0013] Preferably, the adjustment device is provided with a pull handle that drives its movement, and the pull handle extends through the top of the floor.

[0014] The pull handle allows for manual sliding of the adjustment device, thereby adjusting the opening ratio. This eliminates the need for complex mechanical devices, resulting in a simpler and cheaper structure.

[0015] Preferably, the height of the pull handle does not exceed the top surface of the floor.

[0016] The handle is positioned below the top surface of the floor to prevent it from protruding from the floor surface and becoming a roadblock that could cause tripping.

[0017] Preferably, the top of the floor is provided with an indicator sign to indicate the size of the through hole of the adjustment device corresponding to the distance the pull handle moves.

[0018] Setting up indicator signs makes it more intuitive and convenient to control the adjustment of the through-hole size, which means better adjustment of the opening ratio.

[0019] Preferably, the ventilation openings at the bottom of the floor are multiple through holes.

[0020] Compared to a completely open bottom as a ventilation opening, having multiple through holes throughout the bottom of the floor as ventilation openings can achieve ventilation while maintaining the overall strength of the floor.

[0021] Preferably, the connector has protruding columns on both sides.

[0022] The connector has raised columns on both sides, which allows the adjustment device to adjust the size of the openings at the top and bottom of the floor at the same time, thus better adjusting the opening ratio.

[0023] Preferably, the multiple through holes at the top or bottom of the floor are arranged in a continuous matrix.

[0024] Multiple through holes arranged in a matrix make them easier to manufacture.

[0025] Beneficial effects: By setting a protruding column on the regulating device to cover the through hole, the through hole in the area through which the regulating device moves is effectively prevented from being completely blocked, and the ventilation efficiency is significantly improved compared with the existing device described in the background art. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this raised floor; Figure 2 This is a schematic diagram of the exploded structure of this raised floor. Figure 3 This is a structural diagram of the raised floor excluding the top. Figure 4 This is a side sectional view of the raised floor. Figure 5 This is a three-dimensional structural diagram of the adjustment device; Figure 6 This is a top view of an adjustment device with completely open spaces between adjacent horizontal rows of raised columns.

[0027] Explanation of markings in the diagram: 1. Floor, 2. Support column, 3. Adjustment device, 4. Raised column, 5. Connector, 6. Pull handle, 7. Sign. Detailed Implementation

[0028] As shown in the figure, the adjustable opening ratio of the raised floor of this utility model includes a floor 1 and a support column 2 set at the bottom. The top of the floor 1 is covered with multiple through holes, and the bottom is provided with a ventilation opening. An adjustment device 3 for adjusting the opening ratio of the through holes is slidably connected inside the floor 1. The adjustment device 3 is provided with multiple protruding columns 4 that can cover the through holes.

[0029] The floor 1 can be configured with only a top and sides, and the bottom can be completely hollowed out for ventilation. Alternatively, a base plate can be provided with multiple through holes for ventilation. The adjusting device 3 is slidably connected to the side of the floor 1. The length of the sliding direction of the adjusting device 3 must be less than the length of the floor 1 so that the adjusting device 3 can slide inside it.

[0030] The adjusting device 3 includes a connector 5 slidably connected within the floor 1, with raised columns 4 mounted on the connector 5. The connector 5 can be plate-shaped, with multiple perforated areas around the raised columns 4 for ventilation. These perforated areas can be through holes or other irregular shapes. Alternatively, the connector 5 can be mesh-like, but with only horizontal bars and no vertical bars. All raised columns 4 are mounted on the horizontal bars, with open spaces between adjacent horizontal bars. For a detailed description, please refer to [reference needed]. Figure 6 This reduces airflow resistance; to simplify the accompanying diagram, Figure 6 The dovetail joint on the right side of connector 5, used for sliding connection to the side of floor 1, is not shown in the image. Figure 6 The number of raised posts 4 is also less than the number of through holes, but the arrangement of the raised posts 4 is different from... Figure 2-4 Different from China.

[0031] The adjusting device 3 is equipped with a pull handle 6 that drives its movement. The pull handle 6 passes through the top of the floor 1, that is, the top of the floor 1 has a corresponding through groove, from which the pull handle 6 extends. The height of the pull handle 6 does not exceed the top surface of the floor 1. The floor 1 has an indicator plate 7 at the through groove to indicate the size of the through hole covered by the adjusting device 3 corresponding to the movement distance of the pull handle 6. The indicator plate 7 has different covering size indications at different positions. For example, the scale of the indicator plate 7 can be set at 10% intervals. When the pull handle 6 slides to 30%, it means that each protruding column 4 covers 30% of its corresponding through hole, and so on.

[0032] When the bottom of the floor 1 is also provided with through holes, the connector 5 is provided with raised columns 4 on both sides. The through holes at the top and bottom of the floor 1 can be arranged in a continuous matrix, which facilitates the manufacturing of the through holes and the adjustment device 3. Of course, an irregular arrangement can also be used, but the manufacturing will be more complicated, especially the setting of the raised columns 4 and the hollow area on the adjustment device 3 will be more complicated.

[0033] The number of raised pillars 4 is typically less than the number of through holes. This is because in practical use, it's unlikely that all through holes will be completely blocked, preventing air convection. Simply reducing the opening ratio slightly, for example from 25% to 20%, is sufficient. Having fewer raised pillars 4 than through holes saves costs and reduces the resistance encountered by the adjusting device 3 during sliding. Additionally, a smaller number of pillars allows space in the hollowed-out area, further reducing airflow resistance. Of course, the number of raised pillars 4 and through holes can also be set to be the same. Figure 5This is a schematic diagram of the structure of the adjusting device 3 when the quantities of the two are the same.

[0034] The arrangement of the raised pillars 4 can correspond exactly to the arrangement of the through holes, or it can be staggered. For example, all the through holes can be arranged in a matrix, and the raised pillars 4 can also be arranged in the same matrix (normally, the number of raised pillars 4 is even smaller; the same matrix arrangement mentioned here means that the raised pillars 4 are sparsely distributed on the matrix points corresponding to the through holes). However, some of the raised pillars 4 are staggered, that is, they deviate from their original positions in the matrix. Depending on the direction and distance of the offset, different effects will be produced. For example, when some of the raised pillars 4 are shifted forward to between two adjacent rows of through holes, in the case that the normally arranged raised pillars 4 completely cover their corresponding through holes, these staggered raised pillars 4 may simultaneously cover part of the through holes in the rows before and after them. The specific area of ​​obscuring depends on the diameter of the through hole (or the diameter of the raised pillar 4) and the spacing between adjacent rows of through holes.

Claims

1. An adjustable-aperture raised floor, comprising a floor (1) and support columns (2) disposed at the bottom, characterized in that: The floor (1) has multiple through holes on the top and ventilation openings at the bottom. An adjustment device (3) for adjusting the opening ratio of the through holes is slidably connected inside the floor (1). The adjustment device (3) has multiple protruding columns (4) that can cover the through holes.

2. The raised floor with adjustable opening ratio according to claim 1, characterized in that: The number of protruding columns (4) is less than the number of through holes.

3. The raised floor with adjustable opening ratio according to claim 1, characterized in that: The adjustment device (3) includes a connector (5) that is slidably connected to the floor (1), and a raised column (4) is provided on the connector (5).

4. The raised floor with adjustable opening ratio according to claim 3, characterized in that: The connector (5) has multiple hollow areas around the protruding column (4).

5. The raised floor with adjustable opening ratio according to claim 1, characterized in that: The adjustment device (3) is provided with a pull handle (6) that drives it to move, and the pull handle (6) passes through the top of the floor (1).

6. The raised floor with adjustable opening ratio according to claim 5, characterized in that: The height of the pull handle (6) does not exceed the top surface of the floor (1).

7. The raised floor with adjustable opening ratio according to claim 5, characterized in that: The floor (1) is provided with an indicator (7) on top for indicating the size of the through hole of the adjustment device (3) corresponding to the moving distance of the pull handle (6).

8. The raised floor with adjustable opening ratio according to claim 1, characterized in that: The floor (1) has multiple through holes at the bottom.

9. The raised floor with adjustable opening ratio according to claim 3, characterized in that: Both sides of the connector (5) are provided with protruding columns (4).

10. The raised floor with adjustable opening ratio according to claim 8, characterized in that: The multiple through holes at the top or bottom of the floor (1) are arranged in a continuous matrix.

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