A pre-piping of a ventilation and smoke exhaust duct and a method of assembly

Abstract

The application discloses a pre-reserved pipeline of a ventilation and smoke exhaust pipe and an assembling method, which comprises a plurality of pipe bodies, the plurality of pipe bodies are connected to form a pipeline, a pipe body channel is arranged in the pipe body, the pipe body comprises a bottom plate located at the bottom, an enclosing plate is mounted at the bottom of the bottom plate, the bottom plate is provided with a bottom plate through hole, and the enclosing plate encloses the bottom of the bottom plate through hole; a limiting strip is fixedly mounted at the bottom of the bottom plate, the limiting strip is located at both sides of the length direction of the bottom plate, the limiting strip is provided with a groove, and the both sides of the enclosing plate are respectively inserted into the groove. The pre-reserved pipeline of the ventilation and smoke exhaust pipe and the assembling method are convenient for cleaning the inside of the pipeline and have high dismounting safety.

Description

Technical Field

[0001] This invention relates to the field of building ventilation duct technology, and more specifically, to a reserved pipeline and assembly method for ventilation and smoke exhaust ducts. Background Technology

[0002] Ventilation ducts used inside buildings (such as internal parking lots) are typically rectangular cross-section connecting pipes, installed by joining them to form a continuous channel. After prolonged use, a large amount of debris accumulates inside the ducts, affecting ventilation efficiency and posing safety hazards. Currently, disassembling ventilation ducts requires detaching the joined pipes, which is inconvenient because the ducts are hung on the ceiling wall by U-shaped brackets, with the ducts positioned above the U-shaped base of the brackets. This requires improvement. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a reserved pipeline and assembly method for ventilation and smoke exhaust pipes, which facilitates cleaning of the inside of the pipeline and ensures high safety during disassembly.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a reserved pipeline for ventilation and smoke exhaust pipe, comprising multiple pipe bodies connected to form a pipeline, each pipe body having a pipe channel, each pipe body including a bottom plate at the bottom, a sealing plate installed at the bottom of the bottom plate, the bottom plate having a bottom plate through hole, the sealing plate sealing the bottom of the bottom plate through hole; a limiting strip fixedly installed at the bottom of the bottom plate, the limiting strip being located on both sides of the length direction of the bottom plate, the limiting strip having a groove, the sealing plate being inserted into the groove on both sides respectively; further comprising a rod, the sealing plate having a through hole, the rod including a handle, the handle being able to pass through the through hole, the handle length being greater than the through hole width; further comprising a cylinder, the inner wall of the cylinder being slidably connected to a slider, the slider being able to move up and down, the slider being fixedly installed with a fastener, the top of the rod being inserted into the fastener and the two being threadedly connected; a cover plate installed on the top of the cylinder, a spring being placed inside the cylinder, the upper end of the spring abutting against the cover plate, the lower end of the spring pressing down on the slider.

[0005] The invention is further configured such that the groove extends through the length of the pipe, the sealing plate is arranged along the length of the pipe, and the minimum distance between the two limiting strips is less than the width of the sealing plate.

[0006] The present invention is further configured such that the inner wall of the cylinder is provided with a groove, the outer wall of the slider is provided with a corresponding protrusion, and the protrusion of the slider is inserted into the groove of the cylinder to restrict the circumferential rotation of the slider.

[0007] The present invention is further configured such that a pressure plate is installed on the top of the slider, the bottom surface of the pressure plate abuts against the top surface of the fastener, and the bottom surface of the fastener abuts against the inner bottom surface of the slider.

[0008] The invention is further configured such that the insertion rod includes a rod head located at the top and a threaded portion located below the rod head, the bottom of the pressure plate is provided with a guide hole, the rod head is inserted into the guide hole, and the threaded portion is threadedly connected to the fastener.

[0009] The present invention is further configured such that the first cylinder is mounted on the second bracket, and the second spring is placed inside the first cylinder. The second spring is located below the slider, the upper end of the second spring abuts against the bottom of the slider, and the lower end of the second spring abuts against the second bracket.

[0010] The present invention is further configured such that both spring one and spring two are in a compressed state.

[0011] The invention is further configured to include a second cylindrical body, a limiting plate installed on the top of the second cylindrical body, the insertion rod passing through the second cylindrical body and the limiting plate, the insertion rod being fitted with a fixing sleeve, the fixing sleeve having an extension body, the limiting plate having a through groove, and the extension body being able to pass through the through groove.

[0012] The present invention also adopts the following technical solution: an assembly method for a pre-reserved pipeline for ventilation and smoke exhaust pipes, comprising the following steps:

[0013] ①After the pipe is hung on the support, it is connected to form a connecting pipeline through the connecting parts;

[0014] ② A sealing plate is installed at the bottom of the base plate, and the sealing plate is connected to the base plate with screws;

[0015] ③ The insertion rod passes through the through hole and the tube body, with the upper end of the insertion rod extending out of the upper end of the tube body. The top of the threaded part abuts against the bottom of the fastener, and the spring is in a compressed state.

[0016] ④ Rotate the insert rod. Under the downward pressure of the spring, the threaded part of the fastener is screwed into the fastener. The rod handle moves upward to be close to the bottom of the sealing plate. The length direction of the rod handle is set along the width direction of the through hole.

[0017] The present invention is further configured such that the length of the handle is greater than the width of the through hole.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. By installing a sealing plate, the sealing plate and the inside of the tube can be cleaned simply by removing it. During disassembly, after removing the screws between the sealing plate and the base plate, the sealing plate will not fall off immediately because the handle supports it, thus preventing injury to the operator and preventing a large amount of dust and debris from spilling off. If the sealing plate is still stuck to the base plate after removing the screws, it can be separated by tapping the sealing plate. The sealing plate will not fall accidentally during the tapping process, ensuring high safety.

[0020] 2. When the sealing plate is removed, move the insertion rod up until the upper end of the rod handle abuts against the bottom of the base plate. Move the extension body to a position where its bottom is higher than the limiting plate. By rotating the insertion rod, the extension body can be misaligned with the through groove, so that the limiting plate can hook the insertion rod and keep the insertion rod in a higher position, thus making it easier for the sealing plate to slide the insertion rod downwards. Attached Figure Description

[0021] Figure 1 This is a cross-sectional schematic diagram of an embodiment;

[0022] Figure 2 for Figure 1 Cross-sectional view along the MM direction;

[0023] Figure 3 for Figure 1 Cross-sectional view along the NN direction;

[0024] Figure 4 for Figure 1 A diagram showing the view from below;

[0025] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 6 This is a diagram showing the fit between the limiting plate and the insertion rod in the embodiment;

[0027] Figure 7 This is another relative position diagram of the insertion rod and the fastener in the embodiment;

[0028] Figure 8 for Figure 1 Enlarged view of point B in the middle;

[0029] Figure 9 This is another relative position diagram of the handle and the sealing plate in the embodiment;

[0030] Figure 10 for Figure 1 Enlarged view of point C in the middle.

[0031] Reference numerals in the attached drawings: 1. Pipe body; 11. Pipe channel; 12. Base plate; 121. Base plate through hole; 2. Limiting strip; 21. Groove; 3. Wall; 31. Bracket 1; 32. Bracket 2; 33. Cylinder 1; 34. Cylinder 2; 341. Limiting plate; 341. Through groove; 35. Sliding block; 36. Pressure plate; 361. Guide hole; 37. Spring 1; 38. Cover plate; 39. Spring 2; 4. Connecting component; 5. Insert rod; 51. Rod handle; 52. Rod head; 53. Threaded part; 54. Fixing sleeve; 541. Extension body; 6. Sealing plate; 61. Through hole; 7. Fastener. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-10 As shown, this embodiment discloses a reserved pipeline for ventilation and smoke exhaust, including multiple pipe bodies 1, which are connected to form a pipeline. Figure 1 As shown, the pipe body 1 is a thin-walled cuboid structure. The pipe body 1 is provided with a pipe body channel 11. The pipe body channel 11 runs through the pipe body 1 in the length direction. The pipe body channels 11 are interconnected to form a ventilation and smoke exhaust pipe.

[0034] like Figure 1 , Figure 3 As shown, pipe body 1 is equipped with connecting component 4, and two pipe bodies 1 are connected and fixed together by connecting component 4 and bolts. Figure 1 , Figure 2 As shown, the pipe body 1 is fixed to the wall 3 by the bracket 31. The wall 3 is located above the pipe body 1. The pipe body 1 passes through the bracket 31, and the bracket 31 provides support for the pipe body 1.

[0035] like Figure 1 As shown, the pipe body 1 includes a bottom plate 12 located at the bottom, and the bottom plate 12 is provided with a bottom plate through hole 121. The bottom plate through hole 121 is along the length direction of the bottom plate 12 (i.e., Figure 1 There are two holes (in the left and right directions) on the bottom plate, with the bottom plate 121 penetrating vertically through the bottom plate 12.

[0036] A sealing plate 6 is installed at the bottom of the base plate 12. The top surface of the sealing plate 6 is in contact with the bottom surface of the base plate 12, and the sealing plate 6 seals the bottom of the through hole 121 of the base plate.

[0037] Combination Figure 1 , Figure 3A limiting strip 2 is fixedly installed at the bottom of the base plate 12. The limiting strip 2 is located on both sides of the base plate 12 along its length and is bent into an L-shape. The limiting strip 2 has a groove 21 that runs through the length of the pipe 1. The sealing plate 6 is inserted into the groove 21 on both sides. The sealing plate 6 is set along the length of the pipe 1, and the minimum distance between the two limiting strips 2 is less than the width of the sealing plate 6. The vertical height of the groove 21 is greater than twice the thickness of the sealing plate 6, and the sealing plate 6 can be pulled out along the length of the groove 21 after moving downwards.

[0038] like Figure 10 As shown, there is a height difference between the bottoms of two adjacent tanks 21, and the tank 21 with the lower bottom position (i.e., Figure 10 The height difference between the bottom surface of the inner side of the right side groove 21 and the bottom surface of the other limiting strip 2 is greater than the thickness of the sealing plate 6. When disassembling the sealing plate 6, the sealing plate 6 can be moved from the groove 21 on the higher side of the bottom position to the groove 21 on the lower side of the bottom position, and then pulled out from the groove 21 on the lower side of the bottom position to complete the disassembly, so as to facilitate cleaning.

[0039] like Figure 1 As shown, a bracket 32 ​​is fixedly installed on wall 3, and a cylinder 33 is fixedly installed on bracket 32, combined with... Figure 5 A slider 35 is slidably connected to the inner wall of the cylinder 33, and the slider 35 can move up and down. The inner wall of the cylinder 33 is provided with a groove, and the outer wall of the slider 35 is provided with a corresponding protrusion. The protrusion of the slider 35 is inserted into the groove of the cylinder 33 to restrict the circumferential rotation of the slider 35.

[0040] The slider 35 is fixedly mounted with a fastener 7, which is inserted into the slider 35. The fastener 7 is a nut, and the bottom surface of the fastener 7 is in contact with the inner bottom surface of the slider 35. The bottom surface of the slider 35 is provided with a through hole, and the outer diameter of the through hole is larger than the inner hole of the fastener 7.

[0041] A pressure plate 36 is installed on the top of the slider 35. The bottom surface of the pressure plate 36 abuts against the top surface of the fastener 7, and the bottom surface of the fastener 7 abuts against the inner bottom surface of the slider 35 to fix the fastener 7. The outer periphery of the fastener 7 is hexagonal, and the slider 35 is provided with a corresponding hexagonal inner hole. Therefore, after the fastener 7 is inserted into the slider 35, the fastener 7 cannot rotate.

[0042] A cover plate 38 is installed on the top of the cylinder 33. A spring 37 is placed inside the cylinder 33, positioned above the slider 35. The upper end of the spring 37 abuts against the cover plate 38, and the lower end of the spring 37 abuts against the upper end of the pressure plate 36, pressing down on the slider 35. A second spring 39 is also placed inside the cylinder 33, positioned below the slider 35. The upper end of the spring 39 abuts against the bottom of the slider 35, and the lower end of the spring 39 abuts against the bracket 32. Both springs 37 and 39 are in a compressed state.

[0043] like Figure 1As shown, it also includes a plug 5, which passes through the tube body 1 from below and extends to the top of the tube body 1. Combined with... Figure 1 , Figure 8 The sealing plate 6 has a through hole 61, which runs vertically through the plate. The through hole 61 is located below the base plate 12, and is staggered from the through hole 121 in the base plate to prevent them from communicating. Figure 4 , Figure 8 As shown, the through hole 61 has a rectangular cross-section, and the insertion rod 5 includes a handle 51, which is a cuboid structure and can pass through the through hole 61. Specifically, the length of the handle 51 is less than the length of the through hole 61, and the width of the handle 51 is less than the width of the through hole 61. The length of the handle 51 is greater than the width of the through hole 61, so that when the length direction of the handle 51 is aligned with the width direction of the through hole 61, the handle 51 cannot pass through the through hole 61. Therefore, when the handle 51 is above the through hole 61, the top of the handle 51 can abut against the sealing plate 6 to support the sealing plate 6. Figure 9 As shown, when the handle 51 is rotated so that the length direction of the handle 51 is in the same direction as the length direction of the through hole 61, the handle 51 can pass through the through hole 61 to disengage the sealing plate 6 downward from the insert rod 5, and then the sealing plate 6 can be removed.

[0044] like Figure 5 As shown, the insertion rod 5 also includes a rod head 52 located at the top and a threaded portion 53 located below the rod head 52. The threaded portion 53 is disposed on the outer wall of the insertion rod 5. The bottom of the pressure plate 36 is provided with a guide hole 361. The rod head 52 is inserted into the guide hole 361, and the threaded portion 53 is threadedly connected to the fastener 7. The guide hole 361 is provided to facilitate the connection between the threaded portion 53 and the fastener 7. When the threaded portion 53 and the fastener 7 just come into contact, the rod head 52 is inserted into the guide hole 361.

[0045] When the threaded portion 53 of the insert 5 is screwed into the fastener 7, the spring 37 is in a compressed state, and the spring 37 exerts downward pressure on the fastener 7 to facilitate the screwing of the threaded portion 53 into the fastener 7.

[0046] like Figure 5 As shown, it also includes a second cylinder 34, which is located below the slider 35. A limit plate 341 is installed on the top of the second cylinder 34, and the insertion rod 5 passes through the second cylinder 34 and the limit plate 341. Figure 5 , Figure 6 As shown, the insertion rod 5 is fitted with a fixing sleeve 54, which is a cylindrical structure. The fixing sleeve 54 is fitted onto the insertion rod 5. Extensions 541 are provided on both sides of the fixing sleeve 54. The limiting plate 341 has a through groove 3411, which extends vertically through the limiting plate 341. The through groove 3411 is located on both sides of the limiting plate 341, and the extensions 541 can pass through the through groove 3411. Figure 8As shown, when the upper end of the sealing plate 6 is attached to the bottom plate 12, and the upper end of the handle 51 supports the sealing plate 6, and the insertion rod 5 is in this position, the top of the fixing sleeve 54 is at the same height as the bottom of the limiting plate 341; when the sealing plate 6 is removed, the insertion rod 5 is moved up until the upper end of the handle 51 abuts against the bottom of the bottom plate 12, and the extension body 541 moves to a position where its bottom is higher than the limiting plate 341. By rotating the insertion rod 5, the extension body 541 can be misaligned with the through groove 3411, so that the limiting plate 341 can hook the insertion rod 5 and keep the insertion rod 5 in a higher position, thereby facilitating the sealing plate 6 to slide the insertion rod 5 downward.

[0047] A method for assembling a pre-reserved pipe section for a ventilation and smoke exhaust duct includes the following assembly steps:

[0048] ①After the pipe body 1 is hung on the bracket 31, it is connected to form a connecting pipeline through the connecting component 4.

[0049] ② A sealing plate 6 is installed at the bottom of the base plate 12, and the sealing plate 6 is connected to the base plate 12 by screws.

[0050] ③ The insertion rod 5 passes through the through hole 61 and the tube body 1, with the upper end of the insertion rod 5 extending beyond the upper end of the tube body 1, such as... Figure 7 As shown, the rod head 52 is inserted into the guide hole 361, the top of the threaded part 53 abuts against the bottom of the fastener 7, and the spring 37 is in a compressed state.

[0051] ④ Rotate the insert rod 5. Under the downward pressure of the spring 37, the threaded part 53 is screwed into the fastener 7. The handle 51 moves upward to be close to the bottom of the sealing plate 6. The length direction of the handle 51 is set along the width direction of the through hole 61.

[0052] During disassembly, due to the large amount of dust and other debris on the upper surface of the sealing plate 6, after removing the screws between the sealing plate 6 and the base plate 12, the handle 51 can support the sealing plate 6, preventing it from falling off immediately and thus preventing injury to the operator. Furthermore, the dust and other debris on the sealing plate 6 will not fall off in large quantities. If the sealing plate 6 remains adhered to the base plate 12 after removing the screws, it can be separated from the base plate 12 by tapping the sealing plate 6. During the tapping process, the sealing plate 6 will not fall accidentally, ensuring high safety.

[0053] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A preformed venting duct for a venting duct for smoke evacuation, comprising a plurality of duct bodies (1) which are connected to form a duct, said duct bodies (1) being provided with a duct body passage (11) therein, characterized in that, The tube body (1) includes a bottom plate (12) located at the bottom, a sealing plate (6) is installed at the bottom of the bottom plate (12), the bottom plate (12) is provided with a bottom plate through hole (121), and the sealing plate (6) closes the bottom of the bottom plate through hole (121); The bottom of the base plate (12) is fixedly installed with a limiting strip (2). The limiting strip (2) is located on both sides of the base plate (12) along its length. The limiting strip (2) is provided with a groove (21). The sealing plate (6) is inserted into the groove (21) on both sides respectively. It also includes a plug rod (5), the sealing plate (6) is provided with a through hole (61), the plug rod (5) includes a handle (51), the handle (51) can pass through the through hole (61), the length of the handle (51) is smaller than the length of the through hole (61), the width of the handle (51) is smaller than the width of the through hole (61), and the length of the handle (51) is greater than the width of the through hole (61); It also includes a cylindrical body (33), the inner wall of which is slidably connected to a slider (35), the slider (35) is able to move up and down, the slider (35) is fixedly installed with a fastener (7), the top of the insert rod (5) is inserted into the fastener (7) and the two are threadedly connected; A cover plate (38) is installed on the top of the cylinder (33), and a spring (37) is placed inside the cylinder (33). The upper end of the spring (37) abuts against the cover plate (38), and the lower end of the spring (37) presses down on the slider (35).

2. A pre-duct for a venting and smoke evacuation duct according to claim 1, characterized in that, The groove (21) extends through the length of the pipe (1), the sealing plate (6) is set along the length of the pipe (1), and the minimum distance between the two limiting strips (2) is less than the width of the sealing plate (6).

3. A pre-duct for a venting and smoke evacuation duct according to claim 1, characterized in that, The inner wall of the cylinder (33) is provided with a groove, and the outer wall of the slider (35) is provided with a corresponding protrusion. The protrusion of the slider (35) is inserted into the groove of the cylinder (33) to restrict the circumferential rotation of the slider (35).

4. A pre-leave for a venting and smoke evacuation tube according to claim 1, characterized in that, A pressure plate (36) is installed on the top of the slider (35), the bottom surface of the pressure plate (36) abuts against the top surface of the fastener (7), and the bottom surface of the fastener (7) abuts against the inner bottom surface of the slider (35).

5. A pre-leave for a venting and smoke extraction duct according to claim 4, characterized in that, The insertion rod (5) also includes a rod head (52) located at the top and a threaded part (53) located below the rod head (52). The pressure plate (36) has a guide hole (361) at the bottom. The rod head (52) is inserted into the guide hole (361), and the threaded part (53) is threadedly connected to the fastener (7).

6. A pre-duct for a venting and smoke evacuation duct according to claim 1, wherein, The first cylinder (33) is installed on the second bracket (32). The second spring (39) is also placed inside the first cylinder (33). The second spring (39) is located below the slider (35). The upper end of the second spring (39) abuts against the bottom of the slider (35), and the lower end of the second spring (39) abuts against the second bracket (32).

7. A pre-leave for a venting and smoke extraction duct according to claim 6, characterized in that Both spring one (37) and spring two (39) are in a compressed state.

8. A pre-duct for a venting and smoke evacuation duct according to claim 1, wherein, Also include the cylinder two (34), the cylinder two (34) top installation limit board (341), the plug rod (5) passes through the cylinder two (34), limit board (341), the plug rod (5) is installed with fixed sleeve (54), the fixed sleeve (54) is equipped with extension body (541), the limit board (341) is equipped with through slot (3411), the extension body (541) can pass through the through slot (3411).

9. A method of assembling a venting and smoke evacuation duct reservation line according to any one of claims 1-8, characterized in that, It comprises the following steps: ①After the pipe body (1) is hung on the support one (31), the connecting component (4) is butted to form a communication pipeline; ②The bottom plate (12) is installed with the sealing plate (6) at the bottom, and the sealing plate (6) is connected with the bottom plate (12) through screws; ③The plug rod (5) passes through the through hole (61) and the pipe body (1), the upper end of the plug rod (5) extends out of the upper end of the pipe body (1), the top of the threaded part (53) abuts against the bottom of the fastener (7), and the spring one (37) is in a compressed state; ④Rotate the plug rod (5), the fastener (7) is pressed down under the action of the spring one (37), the threaded part (53) is screwed into the fastener (7), the shank (51) moves upward to be close to the bottom of the sealing plate (6), and the length direction of the shank (51) is arranged along the width direction of the through hole (61).

10. A method of assembling a venting and smoke evacuation tube reservation line according to claim 9, characterized in that, The length of the shank (51) is greater than the width of the through hole (61).

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