A protective mold for a roof vent

Abstract

This utility model relates to the field of building construction and discloses a protective mold for roof exhaust pipes, including a bottom frame and a top frame. The top of the bottom frame is fixedly connected to the bottom of the top frame via a connecting column. A handle is welded to the top of the top frame. A centering component is provided on the surface of the top frame, and a demolding component is provided on the surface of the bottom frame. The centering component includes a bearing seat, which is fixedly connected to the surface of the top frame. A bushing is coaxially rotatably connected to the surface of the bearing seat. A connecting rod is fixedly connected to the circumferential surface of the bushing, and a clamp is hinged to the end of the connecting rod away from the bushing. In this utility model, by rotating the bushing of the centering component, two sets of clamps are aligned with the exhaust pipe. Then, the clamps are fitted onto the outer wall of the exhaust pipe, and the bolts are tightened to ensure a tight fit between the two clamps. The cooperation between the bushing and the clamps ensures that the exhaust pipe is centered in the protective mold, improving the uniformity of project quality for different workers during multiple construction batches.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a protective mold for roof exhaust pipes. Background Technology

[0002] Roof vent pipes are ventilation channels that run longitudinally and transversely within the sloping layer. Vent pipes extending from the roof are connected to these channels, allowing gases generated during the sloping layer construction to be discharged promptly. This effectively prevents the roof from cracking due to water freezing and gas pressure. During roof construction, to prevent rainwater from flowing back into the building through the roof vent pipes, concrete retaining blocks are typically installed at the base of the pipes. The base of the roof vent pipes and the waterproof membrane at the base are then wrapped with concrete to provide waterproofing.

[0003] The existing roof exhaust pipe external support pier construction requires the use of molds to pour concrete to form a truncated pyramid structure that is smaller at the top and larger at the bottom, in order to prevent rainwater backflow and protect the waterproof membrane. However, traditional molds lack a dedicated centering structure, and the exhaust pipe is centered by manual experience and visual inspection. This results in the geometric center of the support pier not coinciding with the axis of the exhaust pipe. Furthermore, the exhaust pipe is prone to displacement due to the impact of concrete during pouring. In multi-batch construction, the concentricity deviation between different workers is significant, leading to poor construction quality consistency and affecting the waterproofing effect. Therefore, a protective mold for roof exhaust pipes is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a protective mold for roof exhaust pipes, which aims to improve the problem in the prior art that "the exhaust pipe is centered by manual experience and visual inspection, which leads to the geometric center of the protective pier not coinciding with the axis of the exhaust pipe, and the exhaust pipe is also prone to displacement due to concrete impact during pouring".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a protective mold for roof exhaust pipes, comprising a bottom frame and a top frame, wherein the top of the bottom frame is fixedly connected to the bottom of the top frame via a connecting column, a handle is welded to the top of the top frame, a centering component is provided on the surface of the top frame, and a demolding component is provided on the surface of the bottom frame, wherein the centering component includes a bearing seat, the bearing seat is fixedly connected to the surface of the top frame, a bushing is coaxially rotatably connected to the surface of the bearing seat, a connecting rod is fixedly connected to the circumferential surface of the bushing, and a clamp is hinged to the end of the connecting rod away from the bushing.

[0006] As a further description of the above technical solution: Both the bottom frame and the top frame are regular quadrilaterals formed by steel bars. The side length of the bottom frame quadrilateral is longer than that of the top frame quadrilateral. The connecting column is set at an angle. The bottom frame, top frame and connecting column are fixed by welding.

[0007] As a further description of the above technical solution: The bottom frame, top frame, and connecting column form a truncated pyramid with six openings, and the top opening is smaller than the bottom opening.

[0008] As a further description of the above technical solution: The clamp is designed to be semi-circular, and there are two sets of clamps. The two sets of clamps are detachably connected by bolts.

[0009] As a further description of the above technical solution: The demolding assembly includes a mounting plate, the bottom of which is welded and fixed to the surface of the base frame, and the side of which is welded and fixed to the surface of the connecting column.

[0010] As a further description of the above technical solution: The mounting plate is located at the corner where the bottom frame and the connecting column meet.

[0011] As a further description of the above technical solution: The demolding assembly also includes a control rod, the bottom of which is hinged to the surface of the mounting plate, a support rod hinged to the middle of the control rod, a top block fixedly connected to the end of the support rod away from the control rod, and a round rod hinged to the middle of the support rod, the end of the round rod away from the support rod being hinged to the surface of the mounting plate.

[0012] As a further description of the above technical solution: The control rod is L-shaped, the support rod is always parallel to the mounting plate, and the control rod, support rod, round rod and mounting plate cooperate to form a parallelogram structure.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by rotating the bushing of the centering component, the two sets of clamps are aligned with the exhaust pipe. Then, the clamps are fitted onto the outer wall of the exhaust pipe, and the bolts are tightened to make the two clamps fit tightly. The cooperation between the bushing and the clamps ensures that the exhaust pipe is located in the center of the protective mold, preventing the geometric center of the concrete and the exhaust pipe from shifting during pouring, and improving the uniformity of the project quality of different workers in multiple batches of construction.

[0014] 2. In this utility model, by pressing the vertical end of the L-shaped control rod, the support rod drives the top block to push downwards to the ground, so that the mold is initially separated from the concrete, avoiding deformation or damage to the protective mold caused by hard prying. Furthermore, the lever-type structure of the control rod saves more labor and is easy to use, allowing for operation by a single person. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This utility model Figure 1 An enlarged 3D structural diagram at point A in the middle; Figure 3 This is a three-dimensional exploded view of the top frame, connecting column, and centering component in this utility model; Figure 4 This is a three-dimensional exploded view of the centering component in this utility model.

[0016] Legend: 1. Base frame; 2. Top frame; 3. Connecting column; 4. Handle; 5. Centering assembly; 51. Shaft seat; 52. Shaft sleeve; 53. Connecting rod; 54. Clamp; 6. Demolding assembly; 61. Mounting plate; 62. Control rod; 63. Support rod; 64. Top block; 65. Round rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 and Figure 3 This utility model provides an embodiment of a protective mold for roof exhaust pipes, comprising a bottom frame 1 and a top frame 2. The top of the bottom frame 1 is fixedly connected to the bottom of the top frame 2 via a connecting column 3. Both the bottom frame 1 and the top frame 2 are regular quadrilaterals formed by steel bars, using 10mm or 12mm standard steel bars. The side length of the quadrilateral of the bottom frame 1 is longer than that of the quadrilateral of the top frame 2. The connecting column 3 is set in an inclined state with an inclination angle of 50°-60°. The bottom frame 1, the top frame 2, and the connecting column 3 are fixed by welding, which facilitates mold handling and positioning. The bottom frame 1, the top frame 2, and the connecting column 3 form a truncated pyramid with six openings, the top opening being smaller than the bottom opening. The height of the truncated pyramid is 350mm-400mm. This truncated pyramid structure provides shaping space for concrete pouring while protecting the exhaust pipe from the impact of pouring. The six-sided opening design facilitates concrete flow and vibration. A handle 4 is welded to the top of the top frame 2.

[0019] Reference Figure 3 and Figure 4The surface of the top frame 2 is provided with a centering component 5, and the surface of the bottom frame 1 is provided with a demolding component 6. The centering component 5 includes a bearing 51, which is fixedly connected to the surface of the top frame 2. A bushing 52 is coaxially rotatably connected to the surface of the bearing 51, and the direction of the clamp 54 can be adjusted. A connecting rod 53 is fixedly connected to the circumferential surface of the bushing 52. A clamp 54 is hinged to the end of the connecting rod 53 away from the bushing 52. The clamp 54 is set as a semi-circle, and the number of clamps 54 is set as two sets. The two sets of clamps 54 are detachably connected by bolts to realize the centering and fixing of the exhaust pipe inside the protective mold and prevent the protective mold from shifting during pouring.

[0020] Reference Figure 1 and Figure 2 The demolding component 6 includes a mounting plate 61, which is an 8mm thick steel plate. The bottom of the mounting plate 61 is welded and fixed to the surface of the bottom frame 1, and the side of the mounting plate 61 is welded and fixed to the surface of the connecting column 3. The mounting plate 61 is set at the corner where the bottom frame 1 and the connecting column 3 are connected, which can enhance the overall rigidity of the protective mold.

[0021] Reference Figure 1 and Figure 2 The demolding assembly 6 also includes a control rod 62. The bottom of the control rod 62 is hinged to the surface of the mounting plate 61. A support rod 63 is hinged to the middle of the control rod 62. The length of the power arm when the control rod 62 rotates is greater than the length of the resistance arm, so that when the control rod 62 is manually pressed down to rotate, a force-saving lever is formed. A top block 64 that contacts the ground is fixedly connected to the end of the support rod 63 away from the control rod 62. A round rod 65 is hinged to the middle of the support rod 63. The end of the round rod 65 away from the support rod 63 is hinged to the surface of the mounting plate 61.

[0022] Reference Figure 1 and Figure 2 The control rod 62 is set in an L-shape, and the support rod 63 and the mounting plate 61 are always parallel. The control rod 62, support rod 63, round rod 65 and mounting plate 61 cooperate to form a parallelogram structure. When the control rod 62 is pressed, the support rod 63 drives the rubber top block 64 to push down to the ground, so that the mold is separated from the concrete, avoiding damage to the corners caused by hard prying.

[0023] Working principle: When in use, first move the protective mold to the roof exhaust pipe installation position, adjust the bottom frame 1 to be placed horizontally by using handle 4, and ensure that the bottom of the truncated pyramid structure is in contact with the roof base. Then rotate the bushing 52 of the centering component 5 to align the two sets of clamps 54 with the exhaust pipe. Then put the clamps 54 on the outer wall of the exhaust pipe and tighten the bolts to make the two clamps 54 fit tightly. The cooperation between the bushing 52 and the clamps 54 ensures that the exhaust pipe is located in the center of the protective mold, preventing the geometric center of the concrete and the exhaust pipe from shifting during pouring.

[0024] Then, concrete is poured. Concrete is poured into the truncated pyramidal space formed by the bottom frame 1 and the top frame 2. The six-sided opening design facilitates the flow of concrete to fill the corners of the mold. At the same time, the poured concrete is compacted by vibrating rods. The cooperation between the bottom frame 1 and the top frame 2 creates a size difference between the bottom and the top, so that the concrete naturally forms a slope after molding, which is conducive to drainage.

[0025] After the concrete has initially set for about 4 to 6 hours, operate the demolding components 6 at the four corners in sequence. By pressing the vertical end of the L-shaped control rod 62, under the action of the parallelogram structure formed by the control rod 62, support rod 63, round rod 65, and mounting plate 61, the support rod 63 drives the top block 64 to push downwards to the ground, so that the mold is initially separated from the concrete. This avoids deformation or damage to the protective mold caused by hard prying. In addition, the lever-saving structure of the control rod 62 saves more labor and is easy to use.

[0026] Then loosen the clamp bolts 54 of the centering component 5, and pull the protective mold upward by the handle 4, so that the inclined structure of the quadrangular frustum further reduces the demolding resistance, and finally completes the separation of the protective mold and the concrete. This protective mold is suitable for waterproof protection construction at the root of the exhaust pipe in roof engineering.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective mold for a roof venting pipe comprising a bottom frame (1) and a top frame (2), characterized in that: The top of the bottom frame (1) is fixedly connected to the bottom of the top frame (2) via a connecting column (3). A handle (4) is welded to the top of the top frame (2). A centering component (5) is provided on the surface of the top frame (2). A demolding component (6) is provided on the surface of the bottom frame (1). The centering component (5) includes a bearing (51). The bearing (51) is fixedly connected to the surface of the top frame (2). A bushing (52) is coaxially rotatably connected to the surface of the bearing (51). A connecting rod (53) is fixedly connected to the circumferential surface of the bushing (52). A clamp (54) is hinged to the end of the connecting rod (53) away from the bushing (52).

2. A flashing for a roof vent according to claim 1, wherein: The bottom frame (1) and the top frame (2) are both regular quadrilaterals formed by steel bars. The side length of the quadrilateral of the bottom frame (1) is longer than that of the quadrilateral of the top frame (2). The connecting column (3) is set in an inclined state. The bottom frame (1), the top frame (2) and the connecting column (3) are fixed by welding.

3. A flashing for a roof vent according to claim 1, wherein: The bottom frame (1), top frame (2) and connecting column (3) form a truncated pyramid with six openings, and the top opening is smaller than the bottom opening.

4. A protective boot for a roof vent according to claim 1, wherein: The clamp (54) is set to be semi-circular, and the number of the clamp (54) is set to two sets, and the two sets of clamps (54) are detachably connected by bolts.

5. A protective boot for a roof vent according to claim 1, wherein: The demolding assembly (6) includes a mounting plate (61), the bottom of which is welded to the surface of the bottom frame (1), and the side of which is welded to the surface of the connecting column (3).

6. A flashing for a roof vent according to claim 5, wherein: The mounting plate (61) is located at the corner where the bottom frame (1) and the connecting column (3) are connected.

7. A flashing for a roof vent according to claim 6, wherein: The demolding assembly (6) also includes a control rod (62), the bottom of which is hinged to the surface of the mounting plate (61), a support rod (63) is hinged to the middle of the control rod (62), a top block (64) is fixedly connected to the end of the support rod (63) away from the control rod (62), a round rod (65) is hinged to the middle of the support rod (63), and the end of the round rod (65) away from the support rod (63) is hinged to the surface of the mounting plate (61).

8. A protective boot for a roof vent according to claim 7, wherein: The control rod (62) is L-shaped, the support rod (63) and the mounting plate (61) are always parallel, and the control rod (62), support rod (63), round rod (65) and mounting plate (61) cooperate to form a parallelogram structure.

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