Fire signal butterfly valve

Abstract

The utility model relates to butterfly valve field especially is fire -fighting signal butterfly valve, including valve body, the valve body top is equipped with organism, the organism side wall is equipped with hand wheel, the valve body is equipped with butterfly plate in, the butterfly plate carries out rotary work through valve rod in the valve body inside middle part, the valve body outer wall middle part is equipped with a plurality of clamping holes. The utility model discloses through the rotation of the rotating ring under the action of screw thread can let the sliding ring slide along the first sliding groove, let it insert the corresponding slot position in flange plate, when let it insert, can first use bolt insertion corresponding clamping hole, then let butterfly valve hang between flange plate, then rotate the rotating ring and let it drive the sliding ring insert the corresponding slot position, then lock it, when need to disassemble, can first take out bolt after let flange plate loose, rotate the rotating ring, let the sliding ring retract in, take it out again, like this can prevent the process of loosening bolt again, because forget to support butterfly valve leads to the risk of butterfly valve falling.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and in particular to a signal butterfly valve for fire protection. Background Technology

[0002] Signal butterfly valves are throttling devices suitable for fire protection systems in high-rise buildings and other pipeline systems that require displaying valve open / close status. Signal butterfly valves can be used as regulating and throttling devices on pipelines and containers carrying various corrosive and non-corrosive gases, liquids, semi-fluids, and solid powders.

[0003] Generally, signal butterfly valves are divided into wafer type and flange type. During the installation of wafer type signal butterfly valve, the butterfly valve needs to be placed between two flanges. Then, the holes of the flanges are aligned with the holes on the butterfly valve, and bolts are used to connect and fix it to the flange on the other side to complete the installation. However, when maintenance is required, the valve body needs to be supported during disassembly, otherwise there is a risk of it falling if not careful. Utility Model Content

[0004] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a signal butterfly valve for fire protection to solve the existing problems.

[0006] To achieve the above objectives, the technical solution of this utility model is: a fire-fighting signal butterfly valve, comprising a valve body, a mechanism on the top of the valve body, a handwheel on the side wall of the mechanism, a butterfly plate inside the valve body, the butterfly plate rotating in the middle of the valve body via a valve stem, multiple clamping holes in the middle of the outer wall of the valve body, sliding rings on the outer walls of the valve body at both the inlet and outlet, first sliding grooves on the outer walls of the valve body at both the inlet and outlet for the sliding rings to slide back and forth, a rotating ring sleeved on the outer wall of the sliding ring, the rotating ring being threadedly connected to the sliding ring, and the rotating ring being rotatably connected to the valve body.

[0007] In some embodiments, the outer wall of the valve body inlet and outlet is provided with an annular groove that matches the sliding ring and the rotating ring. The sliding ring is sleeved on the annular groove, and the outer wall of the annular groove is provided with a first sliding groove that is slidably connected to the sliding ring. The rotating ring is provided with connecting rods on both sides of its bottom, and the annular groove is provided with a second sliding groove on the side opposite to the connecting rod.

[0008] In some embodiments, the end face of the sliding ring is provided with a rubber pad.

[0009] In some embodiments, the outer wall of the rotating ring is provided with a plurality of anti-slip grooves.

[0010] In some embodiments, the bottom of the connecting rod is semi-circular.

[0011] In some embodiments, the second chute sidewall is provided with an injection port, and a plug cap is threadedly connected to the inlet of the injection port.

[0012] In some embodiments, the outer wall of the rotating ring is provided with a plurality of grooves.

[0013] By adopting the above technical solution, the beneficial effects of this utility model are:

[0014] By rotating the rotating ring, the sliding ring can slide out along the first groove under the action of the thread, allowing it to insert into the corresponding slot of the flange. When inserting it, first insert the bolt into the corresponding clamping hole, then hang the butterfly valve between the flanges, and then rotate the rotating ring to drive the sliding ring into the corresponding slot, and then lock it. When disassembly is required, first remove the bolt to loosen the flange, then rotate the rotating ring to retract the sliding ring, and then remove it. This can prevent the butterfly valve from falling off due to forgetting to support it during the process of loosening the bolt.

[0015] After the rotating ring is connected to the second sliding groove via the connecting rod, it can be limited on the valve body. During rotation, the sliding ring can be moved by the thread. Because the first sliding groove is limited, the sliding ring will not rotate with the rotating ring, thus preventing it from rotating together and being unable to move. Then, a rubber gasket is set on the end face of the sliding ring, which can increase the sealing performance when it is inserted into the corresponding groove of the flange, which can indirectly play a certain role in preventing water leakage. The injection port is set in the second sliding groove mainly to squeeze the lubricant into it and then seal it with a plug cap. This provides a good lubrication effect when rotating the rotating ring, making it much easier to rotate.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0017] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0018] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a butterfly valve according to some embodiments of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the rotating ring in some embodiments of the present invention. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the structure of the rotating ring in some embodiments of the present invention. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the valve body inlet and outlet of some embodiments of the present invention;

[0026] Figure 5 This is a cross-sectional view of the connection between the rotating ring and the sliding ring in some embodiments of this utility model.

[0027] Figure Labels

[0028] 1. Valve body; 11. Butterfly plate; 12. Valve stem; 13. Clamping hole; 14. First slide groove;

[0029] 2. Sliding ring; 21. Rotating ring; 22. Ring groove; 23. Connecting rod; 24. Second sliding groove; 25. Rubber pad; 26. Anti-slip groove; 27. Inlet; 28. Plug cap; 29. ​​Groove;

[0030] 3. Body; 31. Handwheel. Detailed Implementation

[0031] 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 specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0032] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0036] Reference Figure 1-5This utility model provides a fire-fighting signal butterfly valve, including a valve body 1, a body 3 on the top of the valve body 1, a handwheel 31 on the side wall of the body 3, a butterfly plate 11 inside the valve body 1, the butterfly plate 11 rotating in the middle of the inner side of the valve body 1 via a valve stem 12, a plurality of clamping holes 13 in the middle of the outer wall of the valve body 1, a sliding ring 2 on the outer wall of the valve body 1 at both the inlet and outlet, a first sliding groove 14 for the sliding ring 2 to slide back and forth on the outer wall of the valve body 1, a rotating ring 21 sleeved on the outer wall of the sliding ring 2, the rotating ring 21 being threadedly connected to the sliding ring 2, the rotating ring 21 being rotatably connected to the valve body 1, a plurality of anti-slip grooves 26 on the outer wall of the rotating ring 21, and a plurality of grooves 29 on the outer wall of the rotating ring 21.

[0037] During installation, the appropriate flange needs to be installed on the corresponding pipe. The flange and sliding ring 2 have matching grooves at their respective positions, allowing for alignment during installation. Rotating the rotating ring 21, under the action of the threads, allows the sliding ring 2 to slide along the first groove 14 and insert into the corresponding groove on the flange. For insertion, first insert bolts into the corresponding clamping holes 13, then hang the butterfly valve between the flanges. Next, rotate the rotating ring 21 to drive the sliding ring 2 into the corresponding groove, and then lock it in place. Disassembly is possible when necessary. You can first remove the bolts to loosen the flange, then rotate the rotating ring 21 to retract the sliding ring 2, and then remove it. This prevents the butterfly valve from falling off due to forgetting to support it while loosening the bolts. The valve body will be supported during the sliding process to prevent it from falling off. Removing the bolts alone might result in forgetting to support the butterfly valve. In addition, the anti-slip groove 26 on the outer wall of the rotating ring 21 is mainly to facilitate rotation and increase friction. Alternatively, a groove 29 can be set on the side wall of the rotating ring 21 so that tools can be used to rotate it. This is mainly to prevent the valve from becoming difficult to rotate over time.

[0038] In addition, it is worth noting that the inlet and outlet diameters of the valve body should not be too large, not exceeding 20cm, which is suitable for smaller butterfly valves. This will prevent the overall butterfly valve from becoming too heavy and being damaged during the support of the sliding ring 2. Furthermore, the flange groove is set on the periphery of the inlet and outlet, and the sliding ring 2 is also set on the periphery. This setting mainly serves to support the valve. To achieve a seal, the valve body 1 inlet and outlet seals in the original technology are still required.

[0039] Reference Figure 1-4The valve body 1 has annular grooves 22 on the outer walls of its inlet and outlet that match the sliding ring 2 and the rotating ring 21. The sliding ring 2 is fitted onto the annular groove 22, and the outer wall of the annular groove 22 has a first sliding groove 14 that is slidably connected to the sliding ring 2. The rotating ring 21 has connecting rods 23 on both sides of its bottom. The annular groove 22 has a second sliding groove 24 on the side opposite to the connecting rods 23. The bottom of the connecting rods 23 is semi-circular. The side wall of the second sliding groove 24 has an injection port 27. A plug cap 28 is threadedly connected to the inlet of the injection port 27. The end face of the sliding ring 2 has a rubber pad 25.

[0040] Specifically, after the rotating ring 21 is connected to the second slide groove 24 via the connecting rod 23, it can be limited on the valve body 1. During rotation, the sliding ring 2 can be moved by the thread. Because the first slide groove 14 is limited, the sliding ring 2 will not rotate with the rotating ring 21, thus preventing it from rotating together and being unable to move. Then, a rubber pad 25 is set on the end face of the sliding ring 2, which can increase the sealing performance when it is inserted into the corresponding slot of the flange, and can indirectly play a certain role in preventing water leakage. Furthermore, the injection port 27 is set in the second slide groove 24 mainly to squeeze the lubricant into it and then seal it with the plug cap 28. This provides a good lubrication effect when rotating the rotating ring 21, making it much easier to rotate.

[0041] Working principle: During installation, first insert bolts into the corresponding clamping holes 13, then hang the butterfly valve between the flanges, and then rotate the rotating ring 21 to drive the sliding ring 2 into the corresponding slot of the flange, and then lock it to complete the installation. When maintenance and disassembly are required, first remove the bolts, then rotate one side of the rotating ring 21 to reset the sliding ring 2, then rotate the other side and remove it. When rotating the other end, hold the butterfly valve to prevent it from falling or the flange slot should not be set too deep. After removing the bolts, the flange can be slightly separated and removed.

[0042] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0043] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0044] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A signal butterfly valve for fire protection, characterized in that, include: The valve body has a top body with a handwheel on its side wall. The valve body contains a butterfly plate that rotates in the middle of the valve body via a valve stem. The valve body has multiple clamping holes in the middle of its outer wall. The valve body has sliding rings on the outer walls of both the inlet and outlet. The outer walls of both the inlet and outlet have first sliding grooves for the sliding rings to slide back and forth. A rotating ring is fitted on the outer wall of the sliding ring and is threadedly connected to the sliding ring. The rotating ring is rotatably connected to the valve body.

2. The fire-fighting signal butterfly valve according to claim 1, characterized in that: The valve body has annular grooves on the outer walls of its inlet and outlet that match the sliding ring and the rotating ring. The sliding ring is fitted onto the annular groove, and the outer wall of the annular groove has a first sliding groove that is slidably connected to the sliding ring. The rotating ring has connecting rods on both sides of its bottom, and the annular groove has a second sliding groove on the side opposite to the connecting rod.

3. The fire-fighting signal butterfly valve according to claim 1, characterized in that: The end face of the sliding ring is equipped with a rubber pad.

4. The fire-fighting signal butterfly valve according to claim 1, characterized in that: The outer wall of the rotating ring is provided with multiple anti-slip grooves.

5. The fire-fighting signal butterfly valve according to claim 2, characterized in that: The bottom of the connecting rod is semi-circular.

6. The fire-fighting signal butterfly valve according to claim 2, characterized in that: The second chute has an injection port on its side wall, and a plug is threadedly connected to the inlet of the injection port.

7. The fire-fighting signal butterfly valve according to claim 1, characterized in that: The outer wall of the rotating ring has multiple grooves.

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