Two-way pressure relief fence

Abstract

The application belongs to the technical field of fences, and discloses a fence capable of bidirectional pressure relief, which comprises two stand columns and a plurality of baffle plates connected to a plurality of rotating shafts one by one and capable of rotating with the rotating shafts as the axes, so that each adjacent two baffle plates can be switched between an open state and a closed state. The plurality of baffle plates are rotatably connected between the two stand columns, and the corresponding two baffle plates are in a vertical posture, and the opposite side edges of the two baffle plates are attached to each other, in the closed state, to achieve a shielding effect and ensure normal use of the fence. In strong wind or other bad weather, the baffle plates are blown by the wind to rotate, at least one of the corresponding two baffle plates is in a non-vertical posture, so that a pressure relief gap for wind passing through is formed between the two baffle plates, the baffle plates are in the open state, and the wind can pass through the pressure relief gap to achieve pressure relief, thereby greatly improving the safety performance of the fence.

Description

Technical Field

[0001] This invention belongs to the field of fencing technology, and specifically relates to a fencing with bidirectional pressure relief capability. Background Technology

[0002] Construction site fencing is an essential facility for isolating construction sites from the external environment. However, in severe weather conditions such as strong winds and typhoons, traditional rigid fencing is prone to collapse, panel tearing, and foundation uplift due to excessive wind load, causing serious personal injury and property damage. Therefore, we propose a bidirectional pressure-relief fencing design to address these issues. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a bidirectional pressure-relief fencing, which solves the problem of rigid fencing collapsing due to excessive wind load.

[0004] This invention is achieved through the following solution: a bidirectional pressure-relief enclosure, comprising: Two uprights, both vertically arranged, are used to install on both sides of a preset mounting base. Multiple rotating shafts are connected between the two uprights, and the multiple rotating shafts are arranged at intervals along the vertical direction. Multiple baffles are connected one-to-one to multiple rotating shafts and can rotate about the corresponding rotating shaft as an axis, so that each pair of adjacent baffles can be switched between an open state and a closed state; in the open state, at least one of the corresponding two baffles is in a non-vertical position, so that a pressure relief gap for air supply is formed between the two baffles; in the closed state, both corresponding baffles are in a vertical position, and the opposite edges of the two baffles are in contact.

[0005] A further improvement of the present invention, which provides bidirectional pressure relief for the enclosure, is that the baffle is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the column. The enclosure also includes a linkage component that connects all the rotating shafts to enable all the baffles to move in unison.

[0006] A further improvement of the bidirectional pressure relief enclosure of the present invention is that the linkage component includes a plurality of first gears and a rack, the plurality of first gears being fixedly connected to a plurality of rotating shafts respectively, the rack being slidably connected to the column along the height direction of the column, and the rack meshing with all the first gears.

[0007] A further improvement of the bidirectional pressure-relief enclosure of the present invention is that the enclosure further includes a locking element for locking the rack. The locking element includes a latch that can extend and retract along the sliding direction perpendicular to the rack, and three locking ports sequentially arranged on the rack facing the latch along the sliding direction of the rack. The arrangement of the three locking ports satisfies the following: each locking port is located within the extension and retraction range of the latch in the sliding direction perpendicular to the rack, and when all the baffles are in a vertical position, the locking port in the middle faces the latch; when the rack slides forward to a first predetermined distance, the locking port on one side faces the latch; and when the rack slides backward to a second predetermined distance, the locking port on the other side faces the latch.

[0008] A further improvement of the bidirectional pressure-relief enclosure of the present invention is that the locking tongue includes a plug rod and an elastic element. The plug rod is slidably connected to the column in a sliding direction perpendicular to the rack. The elastic element is connected to the side of the plug rod away from the rack and is used to apply a pre-tightening force to the plug rod for insertion into the locking slot. There are mutually cooperating guide slope groups between the plug rod and each locking slot to ensure that the plug rod can be inserted into and disengaged from each corresponding locking slot when the rack slides in the forward and reverse directions.

[0009] A further improvement of the bidirectional pressure relief enclosure of the present invention is that a cam is fixedly connected to the side of the rack facing the locking tongue, and all three locking holes are opened on the cam. The elastic preload of the insert rod when inserted into the middle locking hole is greater than the elastic preload when inserted into the other two locking holes.

[0010] A further improvement of the bidirectional pressure-relief enclosure of the present invention is that it also includes a second gear, which is rotatably connected to the column, and the rotation axis of the second gear is parallel to the rotation axis of the rotation shaft. The second gear meshes with the rack, and by rotating the second gear, the rack is driven to slide.

[0011] A further improvement of the bidirectional pressure relief enclosure of the present invention is that the diameter of the second gear is larger than the diameter of the first gear.

[0012] A further improvement of the present invention, which provides bidirectional pressure relief, is that a handle is fixedly connected to the second gear.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention features multiple baffles rotatably connected between two pillars. Under normal conditions, both baffles are vertical with their opposite edges touching, effectively providing shelter and ensuring normal operation. However, in severe weather conditions such as strong winds, the wind forces the baffles to rotate, causing at least one baffle to shift out of position. This creates a pressure relief gap between the two baffles, allowing air to pass through and thus releasing pressure. This design prevents traditional rigid fencing from collapsing, tearing panels, or uplifting foundations due to excessive wind loads, significantly improving the safety performance of the fencing. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of the present invention is shown.

[0015] Figure 2 A schematic diagram of the lock structure of the present invention is shown.

[0016] Figure 3 A schematic diagram of the baffle installation position of the present invention is shown.

[0017] Figure 4 A schematic diagram of the locking mechanism of the present invention is shown.

[0018] Figure 5 A schematic diagram of the handle mounting position of the present invention is shown.

[0019] Figure 6 The diagram shows the position of the latch when the wind blows from the outside to the inside and the baffle is in the open state.

[0020] Figure 7 The diagram shows the position of the latch when the wind blows from the inside out and the baffle is in the open state.

[0021] In the diagram: 1. Column; 2. Baffle; 3. Rotating shaft; 4. Linkage assembly; 401. First gear; 402. Rack; 5. Locking element; 501. Slide groove; 502. Elastic element; 503. Insert rod; 504. Locking port; 505. Cam; 506. Connecting plate; 6. Second gear; 601. Handle; 7. Limiting rod. Detailed Implementation

[0022] To address the problem of rigid fencing collapsing due to excessive wind load, this invention provides a bidirectional pressure-relief fencing. The following detailed description, in conjunction with the accompanying drawings, provides further illustration of this bidirectional pressure-relief fencing.

[0023] See Figures 1-7 As shown, a bidirectional pressure-relief enclosure includes: Two columns 1 are both vertically arranged and are used to be installed on both sides of a preset mounting base. Multiple rotating shafts 3 are connected between the two columns 1 and are arranged at intervals along the vertical direction. Multiple baffles 2 are connected one-to-one to multiple rotating shafts 3 and can rotate around the corresponding rotating shaft 3 as an axis, so that each pair of adjacent baffles 2 can be switched between an open state and a closed state; in the open state, at least one of the corresponding two baffles 2 is in a non-vertical posture, so that a pressure relief gap for air supply is formed between the two baffles 2; in the closed state, both corresponding baffles 2 are in a vertical posture, and the opposite edges of the two baffles 2 are in contact.

[0024] By setting multiple baffles 2 rotatably connected between two columns 1, the fence is normally in a vertical position with the opposite edges of the two baffles 2 touching, in a closed state, providing a shielding effect to ensure normal use of the fence. However, in severe weather such as strong winds, the strong winds can be used to rotate the baffles 2, causing at least one of the two baffles 2 to be in a non-vertical position, creating a pressure relief gap between the two baffles 2 for air to pass through. In this case, the baffles 2 are in an open state, allowing wind to pass through the pressure relief gap to relieve pressure. This avoids accidents such as collapse, panel tearing, and foundation uplift caused by excessive wind loads in traditional rigid fences, greatly improving the safety performance of the fence.

[0025] Furthermore, in this embodiment, each baffle 2 is connected to the corresponding rotating shaft 3 at a position above the center of gravity, so that the baffle 2 remains in a vertical posture due to gravity when not driven by lateral wind, and swings adaptively when driven by wind.

[0026] The baffle 2 is fixedly connected to the rotating shaft 3, and the rotating shaft 3 is rotatably connected to the column 1. It is conceivable that the baffle 2 can also be rotatably connected to the rotating shaft 3, while the rotating shaft 3 is fixedly connected to the column 1.

[0027] In some preferred embodiments, all baffles 2 can move in unison via the linkage component 4 to achieve unified pressure relief, rather than each baffle 2 oscillating adaptively on its own. Specifically, see [link to relevant documentation]. Figure 1 As shown, the linkage component 4 includes multiple first gears 401 and racks 402. The multiple first gears 401 are fixedly connected to multiple rotating shafts 3 respectively. The racks 402 are slidably connected to the column 1 along the height direction of the column 1, and the racks 402 mesh with all the first gears 401.

[0028] It should be noted that in this embodiment, each baffle 2 is fixedly connected to its corresponding rotating shaft 3, while each rotating shaft 3 is rotatably connected to the column 1. By using a rack 402, when any baffle 2 is rotated by the wind, it will drive the corresponding first gear 401 to rotate, thereby driving the rack 402 to slide, thus driving all the first gears 401 to rotate together, so as to achieve unified movement and unified pressure relief of all the baffles 2, resulting in better performance.

[0029] Furthermore, a vertically arranged limiting rod 7 is fixedly connected to the inner side of the column 1, and the cross-section of the limiting rod 7 is non-circular (it can be square, rectangular, elliptical, etc.). The rack 402 is slidably sleeved on the limiting rod 7. By using the limiting rod 7 to limit, the rack 402 can be stably slid in the up and down direction, avoiding rotation during the sliding process.

[0030] See Figure 3 As shown, in this embodiment, the baffle 2 is fixedly connected to the bottom of the rotating shaft 3, and the bottom of the baffle 2 is an arc surface. Although it is in contact with the rotating shaft 3 below it, it does not prevent the baffle 2 from rotating in the forward / reverse direction without obstruction.

[0031] Among them, see Figures 1-2 As shown, the enclosure also includes a locking element 5 for locking the rack 402. The locking element 5 includes a latch that can extend and retract along a direction perpendicular to the sliding direction of the rack 402, and three locking slots 504 sequentially arranged on the side of the rack 402 facing the latch along the sliding direction of the rack 402. The arrangement of the three locking slots 504 satisfies the following: each locking slot 504 is within the extension and retraction range of the latch in the direction perpendicular to the sliding direction of the rack 402; when all the baffles 2 are in a vertical position, the locking slot 504 in the middle faces the latch; when the rack 402 slides forward to a first predetermined distance, the locking slot 504 on one side faces the latch; and when the rack 402 slides backward to a second predetermined distance, the locking slot 504 on the other side faces the latch. The first predetermined distance may be equal to or unequal to the second predetermined distance.

[0032] The locking tongue includes a plug rod 503 and an elastic element 502. The plug rod 503 is slidably connected to the column 1 in a sliding direction perpendicular to the rack 402. The elastic element 502 is connected to the side of the plug rod 503 away from the rack 402 and is used to apply a pre-tightening force to the plug rod 503 into the locking slot 504. There are mutually cooperating guide slope groups between the plug rod 503 and each locking slot 504 to ensure that the plug rod 503 can be inserted into and disengaged from each locking slot 504 when the rack 402 slides in the forward and reverse directions. A cam 505 is fixedly connected to the side of the rack 402 facing the latch, and all three locking ports 504 are opened on the cam 505. The elastic preload of the insert rod 503 when it is inserted into the middle locking port 504 is greater than the elastic preload when it is inserted into the other two locking ports 504.

[0033] By adopting the above design, the elastic element 502 applies a pre-tightening force to the insertion rod 503. During the process of the baffle 2 switching from the closed state to the open state by strong wind, the rack 402 will slide, thereby using the locking port 504 to squeeze the insertion rod 503 and compress the elastic element 502. When the insertion rod 503 disengages from the locking port 504, the pre-tightening force will cause the insertion rod 503 to abut against the rack 402. When the rack 402 moves to the point where the insertion rod 503 is aligned with other locking ports 504, the pre-tightening force will push the insertion rod 503 into the locking port 504. The cooperation between the insertion rod 503 and the locking port 504 can not only provide the baffle 2 with the holding force to maintain the closed and open states, but also does not hinder the switching of the baffle 2 between the closed and open states. The entire adjustment process is entirely driven by wind pressure, without the need for other electronic control systems. It is a purely mechanical movement with high reliability and is suitable for harsh environments such as dust, rain, snow, and vibration at the construction site.

[0034] Further, see Figure 1 and Figure 4 As shown, a connecting plate 506 is fixedly connected to the column 1. The connecting plate 506 has a groove 501 with an opening facing the rack 402. The extension direction of the groove 501 is perpendicular to the sliding direction of the rack 402. The insertion rod 503 is slidably connected in the groove 501 to achieve a sliding connection to the column 1. An elastic element 502 is fixedly connected between the side of the insertion rod 503 away from the rack 402 and the inner wall of the groove 501. The elastic element 502 is preferably a spring. A preload is applied to the insertion rod 503 by the spring.

[0035] Among them, see Figures 1-2 As shown, a cam 505 is fixedly connected to the side of the rack 402 facing the latch, and all three locking ports 504 are opened on the cam 505. The elastic preload of the insert rod 503 when it is inserted into the middle locking port 504 is greater than the elastic preload when it is inserted into the other two locking ports 504.

[0036] By employing the above design for each of the three locking ports 504, the corresponding baffle 2 is in the open state facing outwards (see...). Figure 7 As shown), baffle 2 is in the open state with its face inward (see reference). Figure 6 (as shown) and baffle 2 is in the closed state (see...) Figure 1(As shown); Utilizing the gradually expanding conical design of cam 505, when baffle 2 is in the closed state and wind pressure blows baffle 2 open, the insert rod 503 is squeezed out from the locking hole 504, and the insert rod 503 with applied pre-tightening force can slide along the upper or lower conical surface of cam 505 toward rack 402, thereby further accelerating the opening of baffle 2. If baffle 2 switches from the open state to the closed state, the wind pressure also needs to overcome the reverse force generated by the compression of elastic element 502 by the sliding of insert rod 503 along the upper or lower conical surface of cam 505 away from rack 402, so that baffle 2 can maintain a good depressurization state in strong wind weather and will not close easily.

[0037] Among them, see Figure 1 and Figure 5 As shown, it also includes a second gear 6, which is rotatably connected to the column 1, and the rotation axis 3 of the second gear 6 is parallel to the rotation axis 3 of the rotation shaft 3. The second gear 6 meshes with the rack 402, and by rotating the second gear 6, the rack 402 is driven to slide.

[0038] By rotating the second gear 6, the rack 402 can be driven to slide up and down, thereby actively adjusting the opening or closing of the baffle 2. When the baffle 2 is opened to release pressure in strong winds, it can be closed by actively adjusting after the strong winds to ensure the normal use of the enclosure.

[0039] The diameter of the second gear 6 is larger than the diameter of the first gear 401.

[0040] By setting the diameter of the second gear 6 to be larger than that of the first gear 401, it is easier for workers to close the adjusting baffle 2 with fewer rotations when turning the second gear 6, saving time and effort.

[0041] Among them, see Figure 5 As shown, a handle 601 is fixedly connected to the second gear 6.

[0042] The handle 601 makes it easier for workers to manually rotate the second gear 6 to adjust the baffle 2 to close or open; after the wind stops, it can be manually reset to avoid fatigue damage caused by repeated automatic reset in gusty weather.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A type of enclosure with bidirectional pressure relief, characterized in that, include: Two uprights, both vertically arranged, are used to install on both sides of a preset mounting base. Multiple rotating shafts are connected between the two uprights, and the multiple rotating shafts are arranged at intervals along the vertical direction. Multiple baffles are connected one-to-one to multiple rotating shafts and can rotate about the corresponding rotating shaft as an axis, so that each pair of adjacent baffles can be switched between an open state and a closed state; in the open state, at least one of the corresponding two baffles is in a non-vertical position, so that a pressure relief gap for air supply is formed between the two baffles; in the closed state, both corresponding baffles are in a vertical position, and the opposite edges of the two baffles are in contact.

2. The bidirectional pressure-relief enclosure as described in claim 1, characterized in that, The baffle is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the column; The enclosure also includes a linkage component that connects all the rotating shafts to enable all the baffles to move in unison.

3. The bidirectional pressure-relief enclosure as described in claim 2, characterized in that, The linkage assembly includes multiple first gears and racks. The multiple first gears are fixedly connected to multiple rotating shafts, and the racks are slidably connected to the column along the height direction of the column, and the racks mesh with all the first gears.

4. The bidirectional pressure-relief enclosure as described in claim 3, characterized in that, The enclosure also includes a locking element for locking the rack. The locking element includes a latch that can extend and retract along a direction perpendicular to the sliding direction of the rack, and three locking slots arranged sequentially on the rack facing the latch along the sliding direction of the rack. The three locking slots are arranged to satisfy the following conditions: each locking slot is located within the extension and retraction range of the latch in the direction perpendicular to the sliding direction of the rack, and when all the baffles are in a vertical position, the locking slot in the middle faces the latch; when the rack slides forward to a first predetermined distance, the locking slot on one side faces the latch; and when the rack slides backward to a second predetermined distance, the locking slot on the other side faces the latch.

5. The bidirectional pressure-relief enclosure as described in claim 4, characterized in that, The locking tongue includes a plug rod and an elastic element. The plug rod is slidably connected to the column in a sliding direction perpendicular to the rack. The elastic element is connected to the side of the plug rod away from the rack and is used to apply a preload force to the plug rod for insertion into the lock. Each lock is provided with a set of mutually cooperating guide ramps to ensure that the plug rod can be inserted into and disengaged from each corresponding lock when the rack slides in the forward and reverse directions.

6. The bidirectional pressure-relief enclosure as described in claim 5, characterized in that, A cam is fixedly connected to the side of the rack facing the latch, and all three lock holes are opened on the cam. The elastic preload of the insert rod when inserted into the middle lock hole is greater than the elastic preload when inserted into the other two lock holes.

7. The bidirectional pressure-relief enclosure as described in claim 3, characterized in that, It also includes a second gear, which is rotatably connected to the column, and the rotation axis of the second gear is parallel to the rotation axis of the rotation shaft. The second gear meshes with the rack, and by rotating the second gear, the rack is driven to slide.

8. The bidirectional pressure-relief enclosure as described in claim 7, characterized in that, The diameter of the second gear is larger than the diameter of the first gear.

9. The bidirectional pressure-relief enclosure as described in claim 7, characterized in that, A handle is fixedly connected to the second gear.

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