Fireproof plate cutting device
The design of the fireproof board cutting device utilizes a suction cup and an adjustable drill bit to achieve efficient cutting of arc-shaped and ring-shaped fireproof boards, solving the problems of time-consuming, labor-intensive, and poor-quality traditional cutting, and achieving efficient cutting and a superior appearance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAOYE GRP CORP
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional rounded fireproof board cutting is time-consuming and labor-intensive, and the cutting quality is poor.
The fireproof board cutting device includes a suction cup, a pressure rod, and a measuring rod, equipped with an adjustable drill bit. It is attached to the fireproof board by the suction cup and achieves precise cutting by using the measuring rod and the adjustable drill bit.
It achieves efficient cutting of arc-shaped and ring-shaped fireproof boards, with high cutting efficiency and good visual quality.
Smart Images

Figure CN224157784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe fitting manufacturing technology, and more specifically, to a fireproof board cutting device. Background Technology
[0002] Fireproof sealing is primarily used to prevent the spread of fire through openings such as pipes and cables, ensuring the effectiveness of fire compartments in building structures. Fire-resistant panels, as a component of this process, serve to isolate fire and smoke. Traditionally, fire-resistant panels for pipe fire sealing are processed in two main ways: rectangular and curved. Rectangular fire-resistant panels can be made using a standard handheld cutting machine, while curved fire-resistant panels are time-consuming and labor-intensive to process with a handheld cutting machine, resulting in uneven outer edges and a very poor appearance. Utility Model Content
[0003] To address the problems existing in the prior art, the purpose of this utility model is to provide a fireproof board cutting device that is highly efficient in cutting, produces fireproof boards with good appearance quality, has a simple structure, and is easy to operate.
[0004] The present invention adopts the following technical solution:
[0005] The fireproof board cutting device includes a suction cup, a pressure rod, and a measuring rod. The pressure rod is mounted on the suction cup connecting shaft, which is located at the top of the suction cup. The measuring rod is horizontally positioned, with one end mounted on one side of the suction cup connecting shaft. Two adjustable drill bits are mounted on the measuring rod, and these two adjustable drill bits are perpendicular to the fireproof board. A limiting plate is installed at the end of the measuring rod.
[0006] Furthermore, the adjustable drill bit includes a rod sleeve, an extension rod, and a drill bit body. The measuring rod passes through the rod sleeve, the top of the extension rod is installed at the lower end of the rod sleeve, the drill bit body is installed at the bottom of the extension rod, and a fastening bolt is installed at the upper end of the rod sleeve.
[0007] Furthermore, the rod sleeve includes a top plate, two side plates, and a middle plate. The top plate is connected to the top of the two side plates, and the middle plate is connected to the two side plates. The top plate has mounting holes for fastening bolts, and the two side plates have mounting holes for extension rods. The measuring rod is located between the top plate and the middle plate. The top of the extension rod is located at the lower end of the middle plate, and the extension rod is located between the two side plates. The extension rod is connected to the side plates by bolts and nuts. The bottom of the fastening bolt is located between the two side plates, and the bottom of the fastening bolt is in close contact with the top of the measuring rod.
[0008] Furthermore, the bottom of the extension rod is provided with a drill bit body mounting hole, which has an internal thread, and the drill bit body is threadedly connected to the extension rod.
[0009] Furthermore, the fireproof board has a center and two arcs, with the center of the suction cup corresponding to the center and the two arcs corresponding to two adjustable drill bits.
[0010] Beneficial effects
[0011] This invention can simultaneously cut arc-shaped fireproof boards with high cutting efficiency and good cutting effect. It can cut both circular and annular fireproof boards. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of an embodiment of the present invention.
[0013] Figure 2 This is a schematic diagram illustrating an embodiment of the present invention.
[0014] Figure 3 This is a schematic diagram of an adjustable drill bit explosion according to an embodiment of the present invention.
[0015] Figure 4 This is a schematic diagram of the extension rod being retracted according to an embodiment of the present invention. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0017] As shown in the figure, this utility model discloses a fireproof board cutting device, including a suction cup 6, a pressure rod 1, and a measuring rod 3. The pressure rod 1 is mounted on a suction cup connecting shaft 7, which is mounted on the top of the suction cup 6. The measuring rod 3 is horizontally positioned, with one end mounted on one side of the suction cup connecting shaft 7. Two adjustable drill bits, an inner drill bit 5 and an outer drill bit 4, are mounted on the measuring rod 3. The two adjustable drill bits are perpendicular to the fireproof board 8. A limiting plate 2 is mounted at the end of the measuring rod 3. The suction cup 6 is made of soft plastic and can be deformed and adhered to a flat material by compression from top to bottom. The measuring rod 3 can rotate 360 degrees around the suction cup.
[0018] In one embodiment of this utility model, the adjustable drill bit includes a rod sleeve 9, an extension rod 10, and a drill bit body 11. The measuring rod 3 passes through the rod sleeve 9, the top of the extension rod 10 is installed at the lower end of the rod sleeve 9, the drill bit body 11 is installed at the bottom of the extension rod 10, and a fastening bolt 14 is installed at the upper end of the rod sleeve 9.
[0019] A connecting sleeve 14 is fitted around the outside of the suction cup connecting shaft 7, and one end of the measuring rod 3 is connected to the connecting sleeve 14 by a fastener. When the measuring rod 3 rotates, the connecting sleeve 14 also rotates around the suction cup connecting shaft 7.
[0020] A support plate 15 is mounted on the top of the suction cup connecting shaft 7, a pressure rod 1 is mounted on the support plate 15, and a connecting sleeve 14 is located on the lower side of the support plate 15.
[0021] In one embodiment of this utility model, the rod sleeve 9 includes a top plate 91, two side plates 92, and a middle plate 93. The top plate 91 is connected to the top of the two side plates 92, and the middle plate 93 is connected to the two side plates 92. The top plate 91 is provided with fastening bolt mounting holes 911, and the two side plates 92 are provided with extension rod fixing holes 921. The measuring rod 3 is located between the top plate 91 and the middle plate 93. The top of the extension rod 10 is located at the lower end of the middle plate 93, and the extension rod 10 is located between the two side plates 92. The extension rod 10 is connected to the side plates 92 by bolts 12 and nuts 13. The bottom of the fastening bolt 14 is located between the two side plates 92, and the bottom of the fastening bolt 14 is in close contact with the top of the measuring rod 3.
[0022] like Figure 4 As shown, the extension rod 10 can rotate around the bolt 12. When not in use, the extension rod 10 and the drill bit body 11 can be rotated and made parallel to the measuring rod 3 for easy storage. Specifically, when not in use, reverse the bolt 12 to loosen it, and then tighten the bolt 12 after storing the extension rod 10.
[0023] In one embodiment of this utility model, the bottom of the extension rod 10 is provided with a drill bit body mounting hole 101, the drill bit body mounting hole 101 is provided with an internal thread, and the drill bit body 11 is threadedly connected to the extension rod 10.
[0024] In one embodiment of this utility model, the fireproof board 8 is provided with a center and two arcs, namely arc 1 81 and arc 2 82. The diameter of arc 1 81 is larger than the diameter of arc 2 82. Arc 1 81 and arc 2 82 correspond to the outer drill bit 4 and the inner drill bit 5, respectively. The center of the suction cup 6 corresponds to the center.
[0025] First, place the fireproof board 8 to be cut on a horizontal working surface. Draw the dimensions and center of the arc-shaped fireproof board to be cut on the fireproof board with a marker. Then draw arc 1 81 and arc 2 82. Next, align the center of the suction cup 6 of this utility model with the center of the arc and press the suction cup 6 firmly. Operate the pressure rod 1 to attach the suction cup 6 to the fireproof board 8. Then, align the inner drill bit 5 with arc 2 82 and adjust the outer drill bit 4 to align with arc 1 81. Finally, press the pressure rod 1 with one hand and hold the end of the measuring rod 3 with the other hand. Draw an arc with the position of the suction cup 6 as the center until the fireproof board is successfully cut.
[0026] The measuring rod 3 is equipped with a scale, which makes it easy to accurately adjust the position of the outer drill bit 4 and the inner drill bit 5.
[0027] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A fireboard cutting apparatus, characterized by: It includes a suction cup, a pressure rod, and a measuring rod. The pressure rod is mounted on the suction cup connecting shaft, which is located on top of the suction cup. The measuring rod is set horizontally, with one end mounted on one side of the suction cup connecting shaft. Two adjustable drill bits are mounted on the measuring rod, and the two adjustable drill bits are perpendicular to the fireproof board. A limiting plate is installed at the end of the measuring rod.
2. The fire rated panel cutting apparatus of claim 1, wherein: The adjustable drill bit includes a rod sleeve, an extension rod, and a drill bit body. The measuring rod passes through the rod sleeve, the top of the extension rod is installed at the lower end of the rod sleeve, the drill bit body is installed at the bottom of the extension rod, and a fastening bolt is installed at the upper end of the rod sleeve.
3. The fire rated panel cutting apparatus of claim 1, wherein: The rod sleeve includes a top plate, two side plates, and a middle plate. The top plate is connected to the top of the two side plates, and the middle plate is connected to the two side plates. The top plate has mounting holes for fastening bolts, and the two side plates have mounting holes for extension rods. The measuring rod is located between the top plate and the middle plate. The top of the extension rod is located at the lower end of the middle plate, and the extension rod is located between the two side plates. The extension rod is connected to the side plates by bolts and nuts. The bottom of the fastening bolt is located between the two side plates, and the bottom of the fastening bolt is in close contact with the top of the measuring rod.
4. The fire rated panel cutting apparatus of claim 3, wherein: The bottom of the extension rod is provided with a drill bit mounting hole, which has an internal thread, and the drill bit body is threadedly connected to the extension rod.
5. The fire rated panel cutting apparatus of claim 1, wherein: The fireproof board has a center and two arcs. The center of the suction cup corresponds to the center, and the two arcs correspond to two adjustable drill bits.
6. The fire rated panel cutting apparatus of claim 1, wherein: The measuring rod has graduations.