Inserting-buckling type graphite fire-retardant ring

Abstract

The utility model discloses an inserting buckle type graphite fire-retardant ring which is formed by connecting a fire-retardant belt end to end, the fire-retardant belt comprises a graphite belt and a metal belt which are arranged in a stacked mode, the metal belt wraps the graphite belt, a buckle belt used for tightening the metal belt is arranged on the outer side of the metal belt, and an inserting buckle connected with the buckle belt is arranged on the side wall of the metal belt. The metal belt and the graphite belt are tightened through cooperation of the buckle belt and the inserting buckle, the metal belt and the graphite belt can be combined more tightly, the buckle belt is convenient to install, and the installation device is suitable for installation of the fire-resistant ring in a narrow space. The end face blocking piece, the connecting fixing piece, the wrapping fixing piece and the top face fixing piece on the metal belt can be formed by integrally punching a metal sheet, machining is easy and convenient, and the structure is simple; and the lower edge of the metal belt is provided with a plurality of connecting and fixing pieces, so that the metal belt can be conveniently and reliably connected and fixed with a wall or a floor.

Description

Technical Field

[0001] The utility model relates to the technical field of fire stopping rings, in particular to a plug-in type graphite fire stopping ring. Background Art

[0002] A fire stopping ring is made of a metal material for the outer shell and filled with a flame retardant and expandable core material. It is sleeved on the outer wall of a rigid polyvinyl chloride pipe and fixed at the floor slab or wall part. When a fire occurs, the core material expands rapidly when heated, extruding the pipe, and blocking the pipe through-hole within a short time to prevent the spread of fire and thick smoke along the hole. Existing fire stopping rings are generally made according to a fixed inner diameter. To facilitate the sleeving of the fire stopping ring on the pipe during construction, the inner diameter of the fire stopping ring is slightly larger than the outer diameter of the pipe. Due to the error in the outer diameter size of the plastic pipe, the fire stopping ring cannot be tightly fitted and fixed with the pipe, thus affecting the fire stopping effect. Existing fire stopping rings require more components during assembly, have a complex structure, and there is a risk of falling off and loss. In addition, the installation of too many components is time-consuming and laborious.

[0003] Existing fire stopping rings are usually formed by connecting the ends of a fire stopping belt. The fire stopping belt includes a graphite belt and a metal belt arranged in a stacked manner, and the metal belt is coated outside the graphite belt. For example, the patent with the application number CN 201520909171.6 provides a graphite fire stopping ring formed by connecting the ends of a fire stopping belt. The fire stopping belt includes a graphite belt and a metal belt arranged in a stacked manner. One end of the metal belt extends along its length direction to form a fixing strip, and the other end is provided with a fixing buckle that cooperates with the fixing strip. The fixing strip and the fixing buckle cooperate to snap, so that the ends of the metal belt are abutted and the graphite belt is coated inside it.

[0004] If the aforementioned graphite fire stopping ring needs to be connected and fixed to a wall or a floor slab, a connecting and fixing member needs to be provided on the fire stopping ring, and the connecting and fixing member is usually fixed to the metal belt by welding. Currently, various existing fire stopping rings on the market mainly adopt the connecting and fixing member spot welding process and the main body stretching method, and additional equipment and personnel are required during installation, and the installation operation is cumbersome. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a technical solution of a plug-in type graphite fire stopping ring with good fixing performance, good fire stopping effect, simple structure, convenient installation and capable of making the combination of the metal belt and the graphite belt closer.

[0006] The utility model provides the following technical solutions:

[0007] An insert - buckle type graphite fire - stopping collar is formed by connecting the head and tail of a fire - stopping belt. The fire - stopping belt includes a graphite belt and a metal belt arranged in a stacked manner. The metal belt is coated outside the graphite belt. A buckle belt for tightening the metal belt is provided on the outer side of the metal belt. An insertion buckle connected to the buckle belt is provided outward on the metal belt, and a connecting fixing piece is provided at the lower edge of the metal belt.

[0008] A top fixing piece for fixing the upper end face of the graphite belt is arranged at the upper edge of the metal belt, and a covering fixing piece for fixing the lower end face of the graphite belt is arranged at the lower edge of the metal belt.

[0009] The insertion buckle is a protrusion on the metal belt outward. The cooperation of the buckle belt and the insertion buckle makes the head and tail of the metal belt abut against each other and wraps the graphite belt inside.

[0010] There are at least four insertion buckles, which are arranged in sequence along the length direction of the metal belt.

[0011] The connecting fixing pieces are arranged equidistantly on the metal belt, and a plurality of fixing holes are provided on the connecting fixing pieces.

[0012] End face blocking pieces for limiting the graphite belt are provided at the head and tail ends of the metal belt.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By the cooperation of the buckle belt and the insertion buckle to tighten the metal belt and the graphite belt, the length of the metal belt can be conveniently adjusted, making the combination of the metal belt and the graphite belt closer. The installation method is convenient and suitable for installation in narrow space positions, and the connection method is reliable.

[0015] 2. The end face blocking piece, connecting fixing piece, covering fixing piece and top fixing piece on the metal belt can be integrally punched from a metal thin sheet, with simple processing and a simple structure.

[0016] 3. The connecting fixing piece integrally punched on the metal belt can conveniently connect and fix the fire - stopping collar to the wall or floor slab.

[0017] 4. End face blocking pieces for limiting the graphite belt are provided at the head and tail ends of the metal belt, which can conveniently limit the graphite belt and prevent the graphite belt from shifting during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the top view of the present utility model;

[0021] Figure 3 is the front view of the present utility model;

[0022] Figure 4 is the bottom view of the present utility model.

[0023] In the figure: 1. graphite strip; 2. metal strip; 3. end face baffle; 4. buckle strip; 5. snap fastener; 6. connecting and fixing piece; 7. fixing hole; 8. covering and fixing piece; 9. top surface fixing piece. Specific embodiments

[0024] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model and are not used to limit the present utility model.

[0025] Wherein the same reference numerals in the drawings all refer to the same components.

[0026] As Figures 1-4 shown, the present utility model provides a snap-fastener type graphite firestop collar. The firestop strip includes a graphite strip 1 and a metal strip 2 which are stacked. The metal strip 2 is coated on the outside of the graphite strip 1. The foregoing structure is basically the same as that of the existing firestop collar. The difference is that: in this embodiment, a buckle strip 4 for tightening the graphite strip 1 and the metal strip 2 is provided on the outside of the metal strip 2, and a snap fastener 5 connected to the buckle strip 4 is provided outward on the side wall of the metal strip 2. Through the cooperation of the buckle strip 4 and the snap fastener 5, the graphite strip 1 and the metal strip 2 can be conveniently tightened, so that the graphite strip 1 and the metal strip 2 are combined more tightly. The connecting and fixing piece 6 integrally punched on the metal strip 2 can conveniently connect and fix the firestop collar to the wall or floor, with convenient installation and reliable connection.

[0027] During specific use, as Figure 1 shown, after the firestop collar is wrapped around the pipeline, the buckle strip 4 is inserted into the snap fastener 5 along the outside of the metal strip 2. When the head end of the buckle strip 4 passes through the first snap fastener 5, the head end of the buckle strip 4 is bent outward in the reverse direction to fix the relative position of the buckle strip 4 and the metal strip 2. At the position of the last snap fastener 5, the end of the buckle strip 4 is bent outward and tightened to further tighten the metal strip 2, realizing the close fit of the graphite strip 1 and the pipeline. When the two end face baffles 3 of the metal strip 2 contact, the head and tail of the firestop strip can be connected to form a firestop collar. In addition, the present utility model uses a graphite strip as the expansion core material, which has a high expansion coefficient and good flame retardant effect, and can better prevent the spread of fire.

[0028] Furthermore, as Figure 2 shown, a plurality of connecting and fixing pieces 6 integrally punched and formed are provided at the lower edge of the metal strip 2. Preferably, the connecting and fixing pieces 6 are evenly distributed around the center of the firestop collar and are flush with the bottom surface of the firestop collar. The number of the connecting and fixing pieces 6 is set to 6.

[0029] Further, as Figures 1-2 shown, a plurality of top fixing pieces 9 for fixing the top surface of the graphite strip 1 are arranged on the upper edge of the metal strip 2, and a plurality of covering fixing pieces 8 for fixing the graphite strip 1 are arranged on the lower edge of the metal strip 2. The top fixing pieces 9 and the covering fixing pieces 8 are formed by inverting the metal strip 2 around the graphite strip inward, so as to completely cover and fix the graphite strip 1 in the metal strip 2. Preferably, the covering fixing pieces 8 and the top fixing pieces 9 are evenly distributed around the center of the firestop ring.

[0030] Further, as Figures 1-3 shown, the buckle strap 4 and the buckle 5 are cooperated to make the head and tail of the metal strip 2 abut against each other and cover the graphite strip 1 inside it, so as to fasten the graphite strip 1. Preferably, at least 4 buckles 5 are provided and are arranged equidistantly in sequence along the length direction of the metal strip 2.

[0031] Further, the connecting fixing pieces 6 are arranged equidistantly on the metal strip 2, and a plurality of fixing holes 7 are provided on the connecting fixing pieces 6. The firestop ring is connected and fixed to the wall or floor through the fixing holes 7.

[0032] Further, end face stoppers 3 are provided at the head and tail ends of the metal strip 2. During the process of contraction and bending of the metal strip, the end face stoppers 3 can conveniently limit the ends of the graphite strip 1 and prevent the gold graphite strip from shifting during installation.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention 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 perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A buckle-type graphite fire-blocking ring, which is formed by connecting a fire-blocking belt end to end, the fire-blocking belt comprises a graphite belt (1) and a metal belt (2) arranged in a stacked manner, the metal belt (2) is coated on the outside of the graphite belt (1), and is characterized in that: A buckle belt (4) for tightening the metal belt (2) is provided on the outside of the metal belt (2); a buckle (5) connected to the buckle belt (4) is provided on the outside of the metal belt (2); and a connecting fixing plate (6) is provided on the lower edge of the metal belt (2).

2. A buckle-type graphite fire arrester ring according to claim 1, characterized in that: The upper edge of the metal strip (2) is provided with a top surface fixing plate (9) for fixing the upper end surface of the graphite strip (1), and the lower edge of the metal strip (2) is provided with a covering fixing plate (8) for fixing the lower end surface of the graphite strip (1).

3. The buckle-type graphite fire-blocking ring according to claim 1, characterized in that: The buckle (5) is an outward protrusion of the metal belt (2), and the buckle belt (4) and the buckle (5) cooperate to make the metal belt (2) butt against each other end to wrap the graphite belt (1) inside.

4. The buckle-type graphite fire arrester ring according to claim 1, characterized in that: There are at least four buckles (5), which are arranged in sequence along the length direction of the metal belt (2).

5. The buckle-type graphite fire arrester ring according to claim 1, characterized in that: The connecting fixing plates (6) are arranged at equal intervals on the metal belt (2), and a plurality of fixing holes (7) are provided on the connecting fixing plates (6).

6. The buckle-type graphite fire arrester ring according to claim 1, characterized in that: End face baffles (3) for limiting the position of the graphite belt are provided at the leading and trailing ends of the metal belt (2).

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