Smoke-blocking vertical wall for pipeline crossing

Abstract

The invention discloses a smoke-blocking vertical wall for pipeline crossing, and relates to the technical field of fire fighting, and the smoke-blocking vertical wall comprises a partition plate mounted at the top of a floor; the butt-joint frame is connected between the two partition plates, and when the pipeline penetrates through the smoke-blocking vertical wall, the rod-shaped structures are arranged between the butt-joint frame and the pipeline, and the gap can be sealed. According to the pipeline penetrating smoke-blocking vertical wall, in a standard building pipeline installation scene, adjustable rod-shaped structure systems are arranged in the self-adaptive sealing assemblies symmetrically arranged on the two sides of the device, when the pipeline is clamped and fixed, the rod-shaped structures making contact with the outer wall of the pipeline can automatically stop moving due to physical limiting, and adjustment continues to be conducted if the rod-shaped structures make contact with parts not making contact with the outer wall of the pipeline; by means of the tailoring-free self-adaptive installation design, the tedious process of prefabrication machining in the traditional technology is omitted, the material utilization rate is remarkably increased through the repeated utilization mechanism of the sealing piece, and the site construction period is shortened.

Description

Technical Field

[0001] The present invention relates to the field of fire protection technology, in particular to a pipeline passing through a smoke barrier vertical wall. Background Art

[0002] At present, in large buildings such as shopping malls, factories, laboratories, etc., smoke barriers or smoke curtains need to be installed on the indoor ceilings. In order to control the smoke generated in the early stage of the fire within a certain range, thereby preventing the toxic smoke from spreading to other areas, the toxic smoke can be effectively controlled within the smoke-proof partition and discharged from the fire area through the smoke exhaust pipe. The existing smoke barrier walls have a complex structure during installation, and workers need to spend a lot of time and manpower to install them.

[0003] At present, the Chinese patent with the existing patent application number "CN201520742812.3" discloses a smoke barrier wall, which is suitable for the area where the inner wall of the top wall has a pipe, including a first iron baffle and a second iron baffle; the first iron baffle is provided with a first U-shaped groove, and the first U-shaped groove includes a first curved section and a first open section; the second iron baffle is provided with a second U-shaped groove, and the second U-shaped groove includes a second curved section and a second open section; the open end of the first open section is opposite to the open end of the second open section, and are respectively sleeved on the pipe, the first curved section and the second curved section form a closed area for accommodating the pipe, and the outline of the closed area fits the outer outline of the pipe it contacts; the first iron baffle and the first iron baffle are both fixedly connected to the inner wall of the top wall. Although the smoke barrier can be cut according to the external contour of the pipeline, due to the different sizes and shapes of the pipelines, most of the time it can only be installed by on-site cutting, which is not only time-consuming and labor-intensive, but also, in order to ensure the effective operation of the smoke barrier, it is necessary to limit the cut holes to ensure that the shape of the pipeline is consistent. Otherwise, the smoke and dust generated by the fire will pass through the gap between the smoke barrier and the pipeline. At this time, the smoke barrier is useless and cannot play the required role at all.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were found:

[0005] Installation is cumbersome and sealing is poor. During fire protection construction in public places like airports, smoke barriers must be cut on-site to the cross-sections of pipes like DN300 ventilation ducts. Currently, semi-automatic cutting machines are used manually, with workers cutting according to chalk-marked outlines. Due to operator proficiency and equipment accuracy, jagged edges are common, and the mismatch with the pipe outer diameter can reach 2-5 mm. Field data shows that approximately 40% of cut pieces require rework and correction more than twice, with each rework adding an average of 30 minutes to the time, resulting in a reduction in construction efficiency of approximately 25%.

[0006] After installation and inspection, it was found that there were gaps of varying degrees at the junction of the smoke baffle and the pipeline. The average width of the gaps at the top interface reached 5 mm, and the side gaps were mostly 1 - 3 mm. Due to the curvature deviation at the bottom, the maximum gap could reach 20 mm. The smoke penetration test showed that when the smoke pressure reached 15 Pa, obvious smoke leakage occurred at the above-mentioned gaps. Among them, the smoke leakage volume at the bottom gap reached 0.8 m

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[0013] , , , , , , / (m·s), far exceeding the limit of 0.2 m 3 / (m·s) specified by the building smoke prevention and exhaust standard. Under the simulated fire condition, the effective smoke separation time of the smoke prevention zone was shortened from the designed value of 30 minutes to an average of 7.2 minutes. <000001"7>In terms of material utilization, the scraps generated during the cutting process accounted for 18% - 22% of the total raw materials, mainly irregular-shaped metal fragments (the maximum size did not exceed 150 mm × 100 mm). Due to the damaged galvanized layer on the surface, irregular edges, and uneven thickness, they could not meet the dimensional accuracy and material performance requirements for secondary processing, and the recycling rate was only 5% - 8%. Statistical data at the construction site showed that about 120 kg of non-recyclable waste was generated for every 100 square meters of smoke baffle installation, resulting in material waste and increasing the cost of construction waste disposal. Therefore, we propose that the pipeline passes through the smoke baffle. Summary of the Invention

[0008] (1) Technical problems to be solved

[0009] In view of the deficiencies of the prior art, the present invention provides a pipeline passing through a smoke baffle, which solves the technical problems of the existing smoke baffle being cumbersome in the installation process and having poor sealing effect.

[0010] (2) Technical solutions

[0011] To achieve the above object, the present invention is realized through the following technical solutions:

[0012] A pipeline passes through a smoke baffle, and the smoke baffle includes:

[0013] A partition installed on the top of the floor;

[0014] A "C"-shaped docking frame connected between two partitions, and the pipeline can pass through the smoke baffle through the docking frame;

[0015] Among them, two groups of opposing seals are installed on the docking frame and are respectively located on both sides of the pipeline. Multiple groups of rod-shaped structures arranged in sequence from top to bottom are provided inside the seals. When the pipeline passes through the smoke baffle, the rod-shaped structures are arranged at the gap between the docking frame and the pipeline to seal the gap between the docking frame and the pipeline.

[0016] Preferably, a positioning seat is installed at each end of the docking frame. The positioning seat corresponds to the sleeve on the docking frame up and down. The seal is installed between the positioning seat and the sleeve, and the sleeve can be rotated by a driving component inside the docking frame.

[0017] Preferably, docking heads and insertion rods are respectively installed at both ends of the seal. The docking head corresponds to the positioning seat on the docking frame, and the insertion rod is correspondingly inserted into the sleeve.

[0018] Among them, a protrusion is installed inside the sleeve. When the sleeve is inserted into the insertion rod, the protrusion on the inner wall of the sleeve corresponds to the groove on the outer wall of the insertion rod.

[0019] A clamping interface is provided on the surface of the positioning seat, which can be correspondingly clamped with the docking head.

[0020] Preferably, the driving component includes a connecting rod provided on the docking frame, and a bevel gear is installed at both ends of the connecting rod and at the bottom of the sleeve. The sleeve and the connecting rod are connected to each other through the bevel gear.

[0021] Among them, a worm is connected to the docking frame, and the worm meshes with the worm gear on the connecting rod. When the worm is rotated, the two sleeves can be rotated synchronously, and the rotation directions of the two sleeves are opposite.

[0022] Preferably, the seal includes two groups of parallel frame plates, and the two frame plates are connected by a central rod to form a "C" - shaped structure after connection. A number of rod - shaped structures are connected to the outside of the central rod, and a folding pad is connected between adjacent two rod - shaped structures.

[0023] Among them, both ends of the folding pad are respectively connected to adjacent two rod - shaped structures. When the adjacent two rod - shaped structures rotate relative to each other, the folding pad connected between them expands in a fan - shaped manner.

[0024] The insertion rod is fixedly connected to the frame plate. When the driving component drives the sleeve to rotate, the docking frame drives the rod - shaped structure to move towards the direction of the pipeline, covering the gap between the pipeline and the docking frame.

[0025] Preferably, a number of groups of torsion springs are sleeved on the outer wall of the central rod, and the torsion springs correspond to the rod - shaped structures one by one. The central rod is connected to the rod - shaped structure through the torsion spring. When the central rod and the rod - shaped structure rotate relative to each other, the torsion spring is in a state of storing energy.

[0026] Preferably, the seal includes two parallel frame plates, and a vertical plate is connected between the two frame plates and is located on the side of the frame plate close to the docking frame. The rod - shaped structure is U - shaped, and the vertical plate is inserted into the opening of the rod - shaped structure.

[0027] Wherein, a traction component is installed on the frame plate, and the rod-shaped structure can be driven to move along the width direction of the vertical plate by the traction component.

[0028] Preferably, the traction assembly includes squeezing rollers on both sides of the vertical plate, and clamps the rod-like structure. The end of one of the squeezing rollers and the end of the insertion rod are both installed with synchronous wheels, and the outer portion of the two synchronous wheels is provided with a synchronous belt. When the insertion rod rotates, the rotation can be transmitted to the squeezing roller through the synchronous belt, thereby pushing the rod-like structure to translate.

[0029] The inserting rod is movably connected to the frame plate, and mutually meshing linkage gears are installed on the outsides of two adjacent squeezing rollers.

[0030] Preferably, several groups of extrusion wheels are installed on the outside of the extrusion roller, and the extrusion wheels correspond to the rod-shaped structures one by one. The extrusion wheels correspond to the sliding grooves on the outer walls of the rod-shaped structures, and the inner walls of the sliding grooves and the outer walls of the extrusion wheels are both provided with anti-slip threads.

[0031] Preferably, a through hole is provided on the top of the frame plate, and the end of the linkage gear passes through the through hole and is connected to the synchronous wheel inside the frame plate.

[0032] (3) Beneficial effects

[0033] 1. Since two sets of mutually opposing seals are respectively set up on both sides of the pipe, and several sets of rod-shaped structures are arranged in sequence from top to bottom inside the seals, when the pipe is clamped and fixed, the rod-shaped structures that contact the outer wall of the pipe will automatically stop moving due to physical limitations, and the non-contact parts will continue to feed and adjust, eventually forming a sealing interface that completely fits the outer contour of the pipe. Therefore, the technical problems of the existing smoke barrier wall being cumbersome and having poor sealing effect during installation are effectively solved, and a cutting-free adaptive installation design is realized, which not only eliminates the cumbersome process of prefabrication in traditional processes, but also significantly improves material utilization and shortens the on-site construction period through the reuse mechanism of seals.

[0034] 2. Since rotatable blades are used as rod-shaped structures and folding pads are installed between two adjacent blades, the pipeline can be "wrapped" during the rotation process, and the gap between the two adjacent blades is blocked by the folding pad to improve the stability of the seal. At the same time, it can also be used in some environments with limited space, for example, when the distance between two adjacent pipelines is close, thereby increasing the scope of application of the device.

[0035] 3. Since the parallel sliding baffle is used as a rod-shaped structure, the baffle can be driven to slide by the traction component, thereby blocking the gap between the pipe and the docking frame. Since the baffles fit each other, they can be evenly distributed on the outside of the pipe when moving toward the pipe, thereby improving the sealing effect of the pipe. It is mainly suitable for situations where there is ample space on both sides of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.

[0037] Figure 1 This is an overall structural diagram of Example 1 of the present invention;

[0038] Figure 2 This is a schematic diagram of the exploded structure of the opening and closing assembly in Example 1 of the present invention;

[0039] Figure 3 Schematic diagram of the installation position of the docking frame and the drive assembly in Example 1 of the present invention;

[0040] Figure 4 This is a structural diagram of the drive assembly in Example 1 of the present invention;

[0041] Figure 5 This is an exploded structural diagram of the rotary seal in Example 1 of the present invention;

[0042] Figure 6 This is a structural diagram of the blade connection relationship in Example 1 of the present invention;

[0043] Figure 7 Schematic diagram of the expanded state of the blades in Example 1 of the present invention;

[0044] Figure 8 This is a schematic diagram of the process of the device sealing the pipeline in Example 1 of the present invention;

[0045] Figure 9 This is one of the structural diagrams of the opening and closing assembly in Example 2 of the present invention;

[0046] Figure 10 This is the second structural diagram of the opening and closing assembly in Example 2 of the present invention;

[0047] Figure 11 This is a schematic diagram of the motion state of the opening and closing component in Example 2 of the present invention;

[0048] Figure 12 This is an exploded structural diagram of the sealing member in Example 2 of the present invention;

[0049] Figure 13 This is a partial structural diagram of the sealing frame in Example 2 of the present invention;

[0050] Figure 14 Schematic diagram of the motion state of the baffle in Example 2 of the present invention;

[0051] Figure 15Schematic diagram of the installation position of the baffle and the traction assembly in Example 2 of the present invention;

[0052] Figure 16 This is a partial structural diagram of the traction assembly in Example 2 of the present invention;

[0053] Figure 17 This is a schematic diagram of the process of sealing a pipeline by the device in Example 2 of the present invention.

[0054] Legend:

[0055] 1. Pole erection;

[0056] 2. Partition;

[0057] 3. Opening and closing assembly; 31. Docking frame; 32. Baffle; 33. Positioning seat;

[0058] 41. Connecting rod; 42. Bevel gear; 43. Worm gear; 44. Worm; 45. Knob; 46. Sleeve;

[0059] 5. Rotating seal; 51. Frame plate; 52. Center rod; 53. Torsion spring; 54. Butt joint; 55. Brush strip; 56. Blade; 57. Folding pad; 58. Connecting plate; 59. Insert rod;

[0060] 61. Vertical plate; 62. Baffle; 63. Extrusion roller; 64. Position limiting protrusion; 65. Through hole;

[0061] 71. Synchronous wheel; 72. Synchronous belt; 73. Interlocking gear. DETAILED DESCRIPTION

[0062] The embodiment of the present application effectively solves the technical problems of the existing smoke barrier walls, such as the cumbersome installation process and poor sealing effect, by providing a pipe passing through the smoke barrier wall. In the modern building fire protection system, the smoke barrier wall is a key component of smoke control, and its installation accuracy and sealing performance are directly related to the smoke barrier effect and personnel evacuation safety during a fire. Traditional smoke barrier wall devices are limited by fixed structural design, and often face problems such as complex installation procedures and poor sealing adaptability in actual construction - the sealing material needs to be cut on site according to the pipe size, which is not only prone to material waste due to measurement deviation, but the cumbersome debugging process also makes the installation of a single set of devices time-consuming and difficult to adapt to the sealing requirements of complex pipe layouts.

[0063] In response to the above-mentioned industry pain points, this device has achieved a technological breakthrough through modular structural innovation. In the standard building pipeline installation scenario, the adaptive sealing components symmetrically arranged on both sides of the device have a built-in adjustable rod structure system. When the pipeline is clamped and fixed, the rod-shaped structure in contact with the outer wall of the pipeline will automatically stop moving due to physical limitations, while the non-contact parts will continue to feed and adjust, eventually forming a sealing interface that fits the outer contour of the pipeline perfectly. This cutting-free adaptive installation design not only eliminates the tedious prefabrication process in traditional processes, but also significantly improves material utilization and shortens the on-site construction period through the reuse mechanism of seals.

[0064] In narrow space environments such as industrial plants where pipelines are densely arranged, the device uses rotatable blades as the core sealing unit. The flexible folding pads arranged between adjacent blades can automatically fill the gaps as the blades rotate. During installation, the blades achieve an embracing fit to the pipeline through a precise rotating mechanism. Even in a confined space with a close distance between two pipes, the flexible folding structure can be adaptively adjusted to form a continuous and tight sealing barrier, effectively solving the technical problem of traditional rigid seals being difficult to install in a small space.

[0065] In the open installation scenario of large-scale industrial pipeline systems, the device adopts a parallel sliding baffle structure. The baffle group driven by the traction assembly can be displaced synchronously along the track. The serrated edges of the baffles are precisely matched to build a uniform and consistent sealing layer in the gap between the pipeline and the docking frame. This design not only ensures the stability of the sealing interface in the open space, but also improves the anti-leakage ability in high-pressure environments through the mechanical optimization of the sliding mechanism.

[0066] This device has built a technical solution covering multi-dimensional installation environments through differentiated designs of rod-shaped structures - adaptive fitting type for standard scenarios, rotating blade type for narrow spaces, and sliding baffle type for open spaces. Compared with traditional devices, its innovative structural design not only simplifies the construction process and reduces material loss, but also significantly improves the sealing reliability under different working conditions through the adaptive sealing mechanism, providing an advanced option for modern building fire protection systems that is both practical and economical.

[0067] Example 1: The technical solution in the embodiment of the present application effectively solves the technical problems of the existing smoke barrier wall during installation, which is cumbersome and has poor sealing effect. The overall idea is as follows:

[0068] In view of the problems existing in the prior art, the present invention provides a pipeline through smoke curtain wall. The smoke curtain wall is mainly divided into four parts. First, it is the traditional partition 2 of the smoke curtain wall, which mainly plays the role of blocking smoke. It is mainly made of alloy strip plates. Since the present application uses a matrix rod structure to "seal" the pipeline that needs to pass through the smoke curtain wall, only the length of the alloy strip plates is cut, and the shape is not changed. Second, it is the basic frame (opening and closing component 3), which can carry the rod structure and can also be connected to the smoke curtain wall. It mainly adopts a "C" - shaped frame structure. The remaining two parts are the key improvements we made, which are two similar rod - structure arrangement methods. The difference is the applicable scenarios and movement forms of the two schemes. Now, one of them will be introduced (the rotation form, which带动矩阵式杆状结构进行分布 by rotation). The specific content is as follows:

[0069] On the ceiling of the floor, a plurality of vertical rods 1 are sequentially fixed by expansion nails. Then, the alloy strip plates are cut according to the positions of the vertical rods 1. The cut alloy plates are laid between two adjacent vertical rods 1 and then fixed with bolts. Adjacent two alloy plates are closely fitted (to avoid excessive gaps, resulting in smoke and dust passing through). At the same time, when encountering obstacles such as pipelines or lines, a "C" - shaped docking frame 31 is installed at the position of the pipeline, with the opening facing the ceiling, as Figure 1 shown. Thus, the preliminary installation of the smoke curtain wall is completed.

[0070] After the preliminary installation of the smoke curtain wall is completed, the corresponding seal can be selected according to the size of the space on both sides of the pipeline to be penetrated. In order to reduce the installation difficulty of the seal and also to be able to freely switch between two different seals, a connection structure that can be docked with the seal is provided on the docking frame 31. In this embodiment, the rotating seal 5 is taken as an example, which is applicable to the scenario where the space on both sides of the pipeline is narrow. The specific process is as follows:

[0071] As Figure 2 shown, a positioning seat 33 is installed at each end of the docking frame 31, and the positioning seat 33 corresponds to the sleeve 46 on the docking frame 31 up and down. Among them, a clamping interface is opened on the surface of the positioning seat 33 (as shown in the enlarged part in Figure 3 );

[0072] In order for the rotating seal 5 to cooperate with the above - mentioned structure, a docking head 54 and a plug rod 59 are respectively arranged at both ends of the rotating seal 5, so that they can correspond to the clamping interface and the sleeve 46 on the docking frame 31, thereby forming a docking structure.

[0073] It should be noted that there is an unclear part in the original text "带动矩阵式杆状结构进行分布 by rotation", and it is translated as best as possible according to the context. You may need to further check and correct it according to the accurate meaning.During installation, first, the end of the rotating seal 5 with the insertion rod 59 is aligned with the sleeve 46 on the docking frame 31, and the two are plugged into each other. Since the sleeve 46 is provided with a protrusion inside, when the sleeve 46 and the insertion rod 59 are plugged into each other, the protrusion on the inner wall of the sleeve 46 corresponds to the groove on the outer wall of the insertion rod 59, so that the insertion rod 59 and the sleeve 46 cannot rotate relative to each other, so that the subsequent drive assembly can drive the insertion rod 59 to rotate through the sleeve 46. The drive assembly is stored in the docking frame 31, and a baffle 32 is provided on the outside to store the drive assembly.

[0074] After the sleeve 46 and the insertion rod 59 are connected, the joint 54 at the other end of the rotating seal 5 is aligned with the card interface outside the positioning seat 33, and then the rotating seal 5 is pushed so that the joint 54 at its end enters the positioning seat 33 from the card interface, thereby forming a Figure 1 The state shown in the enlarged part in the figure shows that the installation of the rotary seal 5 is completed.

[0075] In order to simultaneously drive the two sleeves 46 to rotate synchronously, a connecting rod 41 is embedded in the interior of the docking frame 31. Figure 4 As shown, a bevel gear 42 is installed at each end of the connecting rod 41 and the bottom of the sleeve 46, and the sleeve 46 and the connecting rod 41 on the same side are connected to each other through the bevel gear 42, as shown in FIG. Figure 4 , so that the two sleeves 46 and the rotating seal 5 connected to the sleeve 46 can be driven to rotate at the same time; secondly, since the two bevel gears 42 on the connecting rod 41 are in opposite directions, when the connecting rod 41 rotates, the two sleeves 46 and the rotating seal 5 connected to the sleeve 46 rotate in opposite directions, which just meets the need for the rotating seal 5 to move toward the center of the docking frame 31 (by observing Figure 8 (b) The structure is known).

[0076] When using the above structure, it is found that if the rotating seal 5 is driven to rotate only by the connecting rod 41 and the bevel gear 42, it is easy to rotate in the opposite direction under the influence of the reaction force. Therefore, in order to be able to drive the sleeve 46 to rotate and lock the adjusted rotating seal 5 at the same time, we use the anti-reverse function of the "worm gear 43 and worm 44" (that is, the worm gear 43 can only be driven to rotate by the worm 44, and the worm gear 43 cannot be driven to rotate by the worm 44) as the main driving structure; Figure 4As shown, we connect a worm 44 to the bottom of the docking frame 31. The threaded end of the worm 44 is inserted into the docking frame 31 and meshes with the worm gear 43 on the connecting rod 41 (inside the docking frame 31). The other end is located outside the docking frame 31, and a knob 45 is connected to this end. In this way, by rotating the knob 45 outside the docking frame 31, the worm 44 can be driven to transmit torque inward, thereby driving the connecting rod 41 to rotate and providing torque for the two sleeves 46.

[0077] Based on the above drive components and docking structure, only the seal needs to be replaced subsequently to complete the adjustment of the sealing method, without the need for overall replacement. At the same time, the replacement is simple and does not require a large amount of time and effort.

[0078] The structure of the rotating seal 5 is introduced as follows:

[0079] As Figures 5 to 8 shown, the rotating seal 5 includes two groups of parallel frame plates 51, and the two frame plates 51 are connected by a central rod 52. After connection, it forms a "C" - shaped structure similar to the docking frame 31, as Figure 5 shown. The central rod 52 provides support for the rod - shaped structure. The rod - shaped structure corresponding to the rotating seal 5 is a fan - shaped blade 56, and a folding pad 57 is connected between adjacent two blades 56, as Figure 6 shown. The two ends of the folding pad 57 are respectively connected to adjacent two blades 56. When adjacent two blades 56 rotate relative to each other, the folding pad 57 connected between them will unfold in a fan - shape, as Figure 7 shown. The upper blade 56 is connected to the folding pad 57 between it and the lower blade 56 through the connecting plate 58 below it;

[0080] During the process of the blade 56 moving towards the direction of the pipeline, when encountering the pipeline obstruction, the blade 56 cannot continue to rotate (fit with the outer wall of the pipeline). Since the number of blades 56 is large and evenly distributed, it can stop moving when encountering the pipeline obstruction, thus forming a state consistent with the shape of the outer wall of the pipeline. And the folding pad 57 between adjacent two blades 56 unfolds in a fan - shape under the pulling force of the blade 56, as Figures 5 to 8 shown. Then, using the brush strip 55 on the frame plate 51, the gap between the frame plate 51 and the ceiling is sealed, thereby forming a tight "sealing structure".

[0081] Secondly, the insertion rod 59 on the rotating seal 5 is fixedly connected to the frame plate �1, and the two form an integral body. In this way, when the drive component drives the sleeve 46 to rotate, the docking frame 31 will drive the blade 56 to move towards the direction of the pipeline until it covers the gap between the pipeline and the docking frame 31, as Figure 8 shown.

[0082] In order to improve the fitting ability of the blade 56 to the pipe surface and also to avoid the pipe affecting the rotation of the blade 56, a number of torsion springs 53 are sleeved on the outer wall of the central rod 52 (one end of the torsion spring 53 is connected to the central rod 52, and the other end is connected to the ring at the end of the blade 56), and the torsion springs 53 correspond to the blades 56 one by one; and the central rod 52 and the blade 56 are connected together through the torsion springs 53. In this way, when the central rod 52 rotates, the blades 56 thereon can not only rotate together with it, but also perform relative rotation. When performing relative rotation, the torsion springs 53 are in a state of storing energy, providing a thrust force for the blades 56 in the direction of the pipe, and at the same time, providing power for the subsequent blades 56 to return to the original parallel state.

[0083] In the specific implementation process, a number of vertical rods 1 are fixed in turn by expansion nails, and then the alloy strip plates are cut according to the positions of the vertical rods 1. The cut alloy plates are laid between two adjacent vertical rods 1 and then fixed by bolts; the two adjacent alloy plates are closely fitted (to avoid excessive gaps, resulting in the passage of soot), and at the same time, when encountering obstacles such as pipes or lines, a "C"-shaped docking frame 31 is installed at the position of the pipe, with the opening facing the ceiling, as Figure 1 shown, thus completing the preliminary installation of the smoke baffle.

[0084] After the preliminary installation of the smoke baffle is completed, the rotating seal 5 can be installed. During the installation process, first, the end of the rotating seal 5 with the insertion rod 59 is aligned with the sleeve 46 on the docking frame 31 and inserted into each other. Since a protrusion is installed inside the sleeve 46, when the sleeve 46 and the insertion rod 59 are inserted, the protrusion on the inner wall of the sleeve 46 corresponds to the groove on the outer wall of the insertion rod 59, so that the insertion rod 59 and the sleeve 46 cannot rotate relative to each other, facilitating the subsequent drive assembly to drive the insertion rod 59 to rotate through the sleeve 46;

[0085] After the insertion of the sleeve 46 and the insertion rod 59 is completed, the docking head 54 at the other end of the rotating seal 5 is aligned with the clamping interface outside the positioning seat 33, and then the rotating seal 5 is pushed so that the docking head 54 at its end enters the positioning seat 33 from the clamping interface, thus forming the state shown in the enlarged part of Figure 1 at this time, the installation of the rotating seal 5 is completed.

[0086] After that, by rotating the knob 45 outside the docking frame 31, since the knob 45 is connected to the worm 44 and the worm 44 meshes with the worm gear 43 on the connecting rod 41, when the knob 45 rotates, it can drive the connecting rod 41 to rotate synchronously; in addition, since a bevel gear 42 is installed at each of the two ends of the connecting rod 41 and the bottom of the sleeve 46, and the sleeve 46 and the connecting rod 41 on the same side are connected to each other through the bevel gear 42, as Figure 4, thus the two sleeves 46 and the rotating seal 5 connected to the sleeves 46 can be driven to rotate at the same time.

[0087] During the rotation of the rotary seal 5, as shown in FIG. Figure 8 As shown in (b) of FIG, the blades 56 on the central rod 52 are gradually squeezed toward the direction of the pipe. When the blades 56 are in contact with the outer wall of the pipe, the blades 56 cannot continue to rotate, and thus correspond to the outside of the pipe. Similarly, since the number of blades 56 is large and evenly distributed, a tight "sealing structure" can be formed around the surface of the pipe. Figure 8 As shown in (c) and (d) in .

[0088] Since the plate does not need to be cut during this process, and since the blades 56 are connected to the center rod 52 by the torsion spring 53, when the center rod 52 rotates, the blades 56 thereon can not only rotate with it, but also rotate relative to it. During the relative rotation, the torsion spring 53 is in a power storage state, providing the blades 56 with a thrust in the direction of the pipe, and at the same time providing power for the subsequent blades 56 to return to their original parallel state.

[0089] Example 2

[0090] Based on Example 1, this embodiment of the present application provides a sealing structure that is convenient for use when there is sufficient space on both sides of the pipeline. The overall concept is as follows:

[0091] like Figures 9 to 17 As shown, when the space on both sides of the pipeline is large enough, a parallel motion seal, i.e., a translation seal (a partial structure of the rotating seal 5), can be used. Unlike embodiment 1, the translation seal has a vertical plate 61, which needs to occupy the space of the docking frame 31, so it is necessary to ensure that there is enough space on both sides of the pipeline. Of course, when the pipeline is small and the space on both sides is also small, the width of the docking frame 31 can be shortened to make the translation seal convex, forming a Figure 17 The specific structure is as follows:

[0092] Based on the partial structure of the rotating seal 5, the translation seal includes two parallel frame plates 51, and a vertical plate 61 is connected between the two frame plates 51 and is located on the side of the frame plates 51 close to the docking frame 31. The rod-shaped structure is U-shaped (bar 62), and the vertical plate 61 is inserted into the opening of the rod-shaped structure, that is, the rod-shaped structure here is the bar 62. Figure 14 shown.

[0093] The bars 62 are closely arranged on the outside of the vertical plate 61 from top to bottom, as shown in FIG. Figure 12 As shown, under the action of the traction assembly on the frame plate 51, the blocking bar 62 moves along the width direction of the vertical plate 61, as shown in FIG. Figure 11 shown.

[0094] The traction assembly includes squeezing rollers 63 on both sides of the vertical plate 61, and the squeezing rollers 63 are in contact with the outer wall of the baffle 62. A synchronous wheel 71 is installed at the end of one of the squeezing rollers 63 and the end of the docking joint 54 (the insertion rod 59 is movably connected to the frame plate 51). The outer portion of the two synchronous wheels 71 is provided with a synchronous belt 72. In this way, when the docking joint 54 rotates, the synchronous belt 72 can be used to transmit the squeezing roller 63 to push the baffle 62 for translation. In order to make the two squeezing rollers 63 move synchronously, a linkage gear 73 is installed on the outer portion of each of the two adjacent squeezing rollers 63, and the two linkage gears 73 are meshed with each other. Figure 16 In order to facilitate the insertion of the squeezing roller 63 into the synchronous wheel 71, a through hole 65 is opened at the top of the frame plate 51, so that the end of the squeezing roller 63 can pass through the through hole 65 and be connected to the synchronous wheel 71 inside the frame plate 51.

[0095] In order to improve the stability of the movement of the baffle 62, several groups of squeezing wheels are installed on the outside of the squeezing roller 63, and the squeezing wheels correspond to the baffle 62 one by one. The squeezing wheels and the baffle 62 fit each other and the friction is improved by the anti-slip thread. Only when the baffle 62 encounters an obstacle will it stop moving under the influence of external force. The baffle 62 that is not affected by external force moves toward the center of the docking frame 31 and squeezes the pipe at the center. Each baffle 62 forms an independent "point" to wrap the pipe, such as Figure 17 As shown in (c) and (d), a corresponding sealing structure can be formed according to the shape of the pipeline.

[0096] In the specific implementation process, the installation structure of the translation seal is referred to Example 1. When used, Figure 17 As shown in (a), the pipe is located between the two translation seals, and then the frame plate 51 is manually rotated toward the position of the docking frame 31 (the insertion rod 59 is movably connected to the frame plate 51, so when the frame plate 51 is rotated, the insertion rod 59 will not affect the frame plate 51) until the frame plate 51 contacts the limiting protrusion 64 (rubber material) on the docking frame 31. Then, the frame plate 51 is pushed hard to squeeze the limiting protrusion 64 and move to the other side of the limiting protrusion 64, as shown in FIG. Figure 10 As shown, at this time, the frame plate 51 is not easy to move under the blocking effect of the limiting protrusion 64, thus forming the following Figure 17 As shown in (b);

[0097] Then, the knob 45 on the docking frame 31 is rotated. Since the knob 45 can control the rotation of the sleeve 46 through the driving assembly, and the sleeve 46 is plugged into the plug rod 59 on the synchronous wheel 71, when the sleeve 46 rotates, it can drive the plug rod 59 and the synchronous wheel 71 connected to the plug rod 59 to rotate. The outer sleeve of the two synchronous wheels 71 is provided with a synchronous belt 72, so that when the docking joint 54 rotates, it can be transmitted to the squeezing roller 63 through the synchronous belt 72, so that it pushes the baffle 62 to translate. Only when the baffle 62 encounters an obstacle will it stop moving under the influence of external force. The baffle 62 that is not affected by external force moves toward the center of the docking frame 31 and squeezes the pipe at the center. Each baffle 62 forms an independent "point position" to wrap the pipe, such as Figure 17 As shown in (c) and (d), a corresponding sealing structure can be formed according to the shape of the pipeline.

[0098] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. The pipeline passes through the smoke barrier wall, which is characterized by: The smoke baffle includes: A partition plate (2) installed on the ceiling; A docking frame (31) in a "C" shape, connected between two partition plates (2), and a pipe passes through the opening of the docking frame (31); Among them, two groups of opposing seals are installed on the docking frame (31), and are distributed on both sides of the pipe. The seal has multiple groups of rod-shaped structures arranged in sequence from top to bottom. When the pipe passes through the docking frame (31), the rod-shaped structures are arranged at the gap between the docking frame (31) and the pipe to seal the gap between the docking frame (31) and the pipe.

2. The pipe passing through the smoke barrier wall according to claim 1 is characterized in that: A positioning seat (33) is installed at each end of the docking frame (31), corresponding to the sleeve (46) on the docking frame (31) up and down. The seal is installed between the positioning seat (33) and the sleeve (46), and the driving component inside the docking frame (31) can drive the seal to rotate through the sleeve (46).

3. The pipe passing through the smoke barrier wall according to claim 2 is characterized in that: Docking heads (54) and insertion rods (59) are respectively installed at both ends of the seal, and the docking head (54) corresponds to the positioning seat (33) on the docking frame (31), and the insertion rod (59) is correspondingly inserted into the sleeve (46); Among them, a protrusion is installed inside the sleeve (46). When the sleeve (46) is inserted into the insertion rod (59), the protrusion on the inner wall of the sleeve (46) corresponds to the groove on the outer wall of the insertion rod (59); A clamping interface is provided on the surface of the positioning seat (33), which can be correspondingly clamped with the docking head (54).

4. The pipe passing through the smoke barrier wall according to claim 3 is characterized in that: The driving component includes a connecting rod (41) provided on the docking frame (31), and a bevel gear (42) is installed at both ends of the connecting rod (41) and at the bottom of the sleeve (46). The bevel gears (42) between the sleeve (46) and the connecting rod (41) are meshed with each other; Among them, a worm (44) is connected to the docking frame (31), and the worm (44) is meshed with the worm gear (43) inside the connecting rod (41). When the worm (44) rotates, it can drive the two sleeves (46) to rotate synchronously, and the rotation directions of the two sleeves (46) are opposite.

5. The pipe passing through the smoke barrier wall according to claim 4 is characterized in that: The seal includes two groups of parallel frame plates (51), and the two frame plates (51) are connected by a central rod (52). After connection, a "C" - shaped structure is formed. A number of rod-shaped structures are all connected to the outside of the central rod (52), and a folding pad (57) is connected between adjacent two rod-shaped structures; Among them, both ends of the folding pad (57) are respectively connected to adjacent two rod-shaped structures. When the adjacent two rod-shaped structures rotate relative to each other, the folding pad (57) connected between them expands in a fan shape; ​ 6. The pipe passing through the smoke barrier wall according to claim 5, characterized in that: The outer wall of the central rod (52) is sleeved with a plurality of torsion springs (53), and the torsion springs (53) correspond to the rod-shaped structures one by one. The central rod (52) is connected to the rod-shaped structure through the torsion springs (53). When the central rod (52) and the rod-shaped structure rotate relative to each other, the torsion springs (53) are in a force storage state.

7. The pipe passing through the smoke barrier wall according to claim 4, characterized in that: The sealing member comprises two mutually parallel frame plates (51), and a vertical plate (61) is connected between the two frame plates (51) and is located on a side of the frame plates (51) close to the docking frame (31). The rod-shaped structure is U-shaped, and the opening is correspondingly plugged into the vertical plate (61); Wherein, a traction assembly is installed on the frame plate (51), and the rod-shaped structure can be driven to move along the width direction of the vertical plate (61) by the traction assembly.

8. The pipe passing through the smoke barrier wall according to claim 7, characterized in that: The traction assembly includes squeezing rollers (63) on both sides of the vertical plate (61) and clamps the rod-shaped structure. The end of one squeezing roller (63) and the end of the insertion rod (59) are both installed with synchronous wheels (71). The outer portion of the two synchronous wheels (71) is provided with a synchronous belt (72). When the insertion rod (59) rotates, the synchronous belt (72) can be transmitted to the squeezing roller (63), thereby pushing the rod-shaped structure to translate. The inserting rod (59) is movably connected to the frame plate (51), and mutually meshing interlocking gears (73) are installed on the outside of two adjacent squeezing rollers (63).

9. The pipe passing through the smoke barrier wall according to claim 8, characterized in that: Several groups of extrusion wheels are installed on the outside of the extrusion roller (63), and the extrusion wheels correspond to the rod-shaped structures one by one. The extrusion wheels fit into the sliding grooves on the outer walls of the rod-shaped structures, and the inner walls of the sliding grooves and the outer walls of the extrusion wheels are both provided with anti-slip threads.

10. The pipe passing through the smoke barrier wall according to claim 8, characterized in that: A through hole (65) is provided on the top of the frame plate (51), and the end of the linkage gear (73) passes through the through hole (65) and is connected to the synchronous wheel (71) inside the frame plate (51).

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