Wet alarm valve with protection device

Abstract

The utility model relates to the field of valves, in particular to a wet alarm valve with a protection device, which comprises a valve body, and a protection box is arranged outside the valve body. The valve body is fixed in the protection box, the water inlet and the water outlet of the valve body are suspended and cannot abut against the two ends of the protection box, during installation, the sliding plate slides towards the two sides firstly, and then a flange plate connected with a fire fighting pipeline is placed in the sliding plate in a sleeved mode from the largest first opening and connected with the water inlet and outlet end of the valve body. One end of the bottom of the protection box can be firstly connected to be well placed and connected with the other end, after a flange plate is placed in, a sliding plate can be loosened to be combined under the action of a spring, in this way, a second opening can be attached to the pipe wall, the second opening is small so that the second opening can be better attached to the pipe wall, and then the protection plate is arranged to wrap the second opening, so that better protection is achieved; and meanwhile, better comprehensive protection can be carried out, and a large gap cannot be generated between the opening and the pipe wall.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a wet alarm valve with a protection device. Background Art

[0002] A wet alarm valve is a one-way valve that only allows water to flow into the sprinkler system unidirectionally and alarms at a specified flow rate. Usually, the water pressure before and after the valve flap of the wet alarm valve is equal (the water pressure balance small hole in the guide pipe is used to keep the water pressure before and after the valve flap balanced). Due to the self-weight of the valve flap and the different total water pressures on the front and back of the valve flap, the valve flap is in a closed state (the total pressure above the valve flap is greater than the total pressure below the valve core). When a fire occurs, the closed sprinkler sprays water. Since the water pressure balance small hole is too late to replenish water, the water pressure above the alarm valve drops. At this time, the water pressure in front of the valve flap is greater than the water pressure behind the valve flap, so the valve flap opens, supplying water to the riser and the pipe network. At the same time, water enters facilities such as a delay chamber, a pressure switch, and a hydraulic alarm bell along the annular groove of the alarm valve, sending a fire alarm signal and starting the fire pump.

[0003] The existing wet alarm valves are provided with protection boxes. However, since there are generally flange plates at the pipe orifices of the fire protection pipes, and the diameters of the flange plates are mostly larger than the diameters of the pipe orifices, this makes installation difficult. Only the opening of the protection box can be made larger, resulting in poor protection. There will be a large gap at the top due to the inability to fit well, which is not conducive to comprehensive protection. Summary of the Utility Model

[0004] Other features and advantages of the utility model will be described in the following specification, and will become partially obvious from the specification, or be understood by implementing the utility model. The objectives and other advantages of the utility model can be achieved and obtained through the structures specifically pointed out in the specification and other specification drawings.

[0005] The purpose of the utility model is to overcome the above deficiencies and provide a wet alarm valve with a protection device to solve the existing problems.

[0006] To achieve the above objective, the technical solution of the utility model is: a wet alarm valve with a protection device, including a valve body, a protection box is arranged outside the valve body, the valve body is arranged in the protection box, a box door is arranged on the side wall of the protection box, first openings are arranged at both ends of the protection box, and the first openings are respectively located at the water inlet and outlet ends of the valve body. Corresponding sliding plates are arranged on both sides of the outer wall of the first opening. Semi-circular openings are arranged at the tops of the sliding plates, and the semi-circular openings are combined to form a second opening. The diameter of the first opening is larger than that of the second opening. A first sliding groove is arranged on the end face of the protection box, a first spring is arranged in the first sliding groove, the sliding plate is slidably connected with the first sliding groove and is connected with the first spring, and protection plates are arranged around the outer walls of the semi-circular openings.

[0007] In some embodiments, a plurality of second chutes are provided on opposite sides of the inner wall of the protection plate. A clamping block is provided in each second chute, and a second spring is provided in each second chute and is connected to the clamping block.

[0008] In some embodiments, the outer end of the clamping block is arc-shaped.

[0009] In some embodiments, a protective pad is provided at the outer end of each clamping block.

[0010] In some embodiments, first threaded holes are provided on both sides of the end face of the sliding plate, and are threadedly connected to the protection box through bolts.

[0011] In some embodiments, second threaded holes are provided at the relative positions of the protection plate and the second chute.

[0012] By adopting the above technical solution, the beneficial effects of the present utility model are as follows: By fixing the valve body in the protection box, its water inlet and outlet are suspended and will not abut against both ends of the protection box. During installation, first slide the sliding plate to both sides, and then put the flange connected to the fire pipeline into it through the largest first opening and connect it to the water inlet and outlet ends of the valve body. You can first connect one end at the bottom of the protection box to make it easier to place and then connect the other end. After putting the flange in, the sliding plate can be released to merge under the action of the spring, so that the second opening fits against the pipe wall. Since the second opening is small for better fitting against the pipe wall, a protection plate is provided to wrap it up, providing better protection. At the same time, this can provide better comprehensive protection and prevent a large gap from being generated between its opening and the pipe wall.

[0013] It should be understood that the above general description and the following detailed description are only exemplary and explanatory and cannot limit the present disclosure.

[0014] Undoubtedly, such purposes of the present utility model and other purposes will become more apparent after the details of the preferred embodiments described in multiple drawings and illustrations below.

[0015] To make the above and other purposes, features and advantages of the present utility model more obvious and understandable, one or more preferred embodiments are specifically given below, and in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.

[0017] In the drawings, the same components are denoted by the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only one or several embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on such drawings.

[0019] Figure 1 Structural schematic diagram of a warning valve according to some embodiments of the present invention;

[0020] Figure 2 Structural schematic diagram of a sliding plate according to some embodiments of the present invention;

[0021] Figure 3 Structural schematic diagram of a first sliding groove according to some embodiments of the present invention;

[0022] Figure 4 Internal structural diagram of a protection plate according to some embodiments of the present invention. Detailed implementation manners

[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following further details the present invention in combination with specific implementation manners. It should be understood that the specific implementation manners described herein are only used to explain the present invention, but not to limit the present invention.

[0024] In addition, in the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0025] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. However, indicating a direct connection means that there is no connection relationship constructed through a transition structure between the two connected main bodies, and only a connection structure is used to connect them to form a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0027] The following describes the specific embodiments of the present utility model with reference to the accompanying drawings.

[0028] Refer to Figures 1-4 , Figure 1 is a schematic structural diagram of a wet alarm valve according to some embodiments of the present utility model; Figure 2 is a schematic structural diagram of a sliding plate according to some embodiments of the present utility model; Figure 3 is a schematic structural diagram of a first chute according to some embodiments of the present utility model;

[0029] Figure 4 is an internal structural diagram of a protection plate according to some embodiments of the present utility model.

[0030] The present utility model provides a wet alarm valve with a protection device, including a valve body 1, a protection box 2 is provided outside the valve body 1, the valve body 1 is erected in the protection box 2, a box door 21 is provided on the side wall of the protection box 2, first openings 22 are provided at both ends of the protection box 2, the first openings 22 are respectively located at the water inlet and outlet ends of the valve body 1, sliding plates 23 corresponding to each other are provided on both sides of the outer wall of the first openings 22, semi-circular openings 27 are provided at the tops of the sliding plates 23, the semi-circular openings 24 are combined to form a second opening 24, the diameter of the first opening 22 is larger than that of the second opening 24, a first chute 25 is provided on the end face of the protection box 2, a first spring 26 is provided in the first chute 25, the sliding plates 23 are slidably connected to the first chute 25 and are connected to the first spring 26, and protection plates 3 are respectively provided around the outer walls of the semi-circular openings 27.

[0031] By fixing the valve body 1 in the protection box 2, making its water inlet and outlet suspended without touching the two ends of the protection box 2. During installation, first slide the sliding plate 23 to both sides, and then put the flange connected to the fire pipeline into it and let it be inserted from the largest first opening 22 to connect with the water inlet and outlet ends of the valve body 1. You can first connect one end at the bottom of the protection box 2 to make it easier to place and then connect the other end. After putting the flange in, you can release the sliding plate 23 and let it merge under the action of the spring. In this way, the second opening 24 will fit against the pipe wall. Since the second opening 24 has a small opening, it is set to better fit the pipe wall. Then, a protection plate 3 is provided to wrap it up, providing better protection. At the same time, this can provide better comprehensive protection and prevent a large gap from being generated between its opening and the pipe wall.

[0032] According to some embodiments of the present invention, optionally, a plurality of second chutes 31 are provided on the opposite inner walls of the protection plate 3. Clamping blocks 32 are provided in the second chutes 31, and second springs 33 are provided in the second chutes 31. The second springs 33 are connected to the clamping blocks 32. After the sliding plate 23 merges, the provided clamping blocks 32 may not be able to fit well due to the small pipe wall. To maintain good stability, the springs drive the clamping blocks 32 to clamp, making it closely fit against the pipe wall to achieve fitting different-diameter pipe walls. In addition, the occupied area of the clamping blocks 32 is set to be larger, so that the adjacent spacing between them is smaller, and the gap generated during clamping can be very small, without affecting the protection.

[0033] According to some embodiments of the present invention, optionally, the outer ends of the clamping blocks 32 are arc-shaped. This can better fit the pipe wall.

[0034] According to some embodiments of the present invention, optionally, protection pads 34 are provided at the outer ends of the clamping blocks 32. To protect the pipe wall from being damaged and also to achieve good fitting.

[0035] According to some embodiments of the present invention, optionally, first threaded holes 28 are provided on both sides of the end face of the sliding plate 23, and are threadedly connected to the protection box 2 through bolts. By putting the bolts into the first threaded holes 28, the sliding plate 23 can be fixed, and after installation, it can be prevented from sliding to provide good protection.

[0036] According to some embodiments of the present invention, optionally, second threaded holes 35 are provided at the relative positions of the protection plate 3 and the second chutes 31. In this way, by putting the bolts into the second threaded holes 35, after the clamping blocks 32 clamp, the bolts can be used to hold them to make it fit better and be more stable.

[0037] It should be understood that the embodiments disclosed in the present utility model are not limited to the specific processing steps or materials disclosed herein, but should extend to equivalent substitutions of such features understood by those of ordinary skill in the relevant art. It should also be understood that the terms used herein are for the purpose of describing specific embodiments only and do not imply limitation.

[0038] As used herein, the term "embodiment" means that a particular feature or characteristic described in connection with an embodiment is included in at least one embodiment of the present utility model. Thus, the phrase "an embodiment" or "embodiments" that appear throughout the specification are not necessarily all referring to the same embodiment.

[0039] In addition, the described features or characteristics may be combined in any other suitable manner in one or more embodiments. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present utility model. However, those skilled in the relevant art will understand that the present utility model can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A wet alarm valve with a protection device, characterized in that, Including: A valve body, with a protective box provided outside it. The valve body is arranged inside the protective box. The side wall of the protective box is provided with a box door. Both ends of the protective box are provided with first openings, which are respectively located at the water inlet and outlet ends of the valve body. On both sides of the outer wall of the first opening, corresponding sliding plates are provided. The tops of the sliding plates are both provided with semi-circular openings, and the semi-circular openings combine to form a second opening. The diameter of the first opening is larger than that of the second opening. The end face of the protective box is provided with a first chute, and the first chute is provided with a first spring. The sliding plate is slidably connected to the first chute and is connected to the first spring. The outer walls of the semi-circular openings are all surrounded by protective plates.

2. The wet alarm valve with a protection device according to claim 1, characterized in that: On the opposite inner walls of the protective plates, a plurality of second chutes are provided. Clamping blocks are arranged in the second chutes, and second springs are arranged in the second chutes. The second springs are connected to the clamping blocks.

3. The wet alarm valve with a protection device according to claim 2, characterized in that: One end of the outer part of the clamping block is arc-shaped.

4. The wet alarm valve with a protection device according to claim 2, wherein: Protective pads are provided at one end of the outer part of the clamping block.

5. The wet alarm valve with a protection device according to claim 1, characterized in that: On both sides of the end face of the sliding plate, first threaded holes are provided and are threadedly connected to the protective box through bolts.

6. The wet alarm valve with a protection device according to claim 2, wherein: Second threaded holes are provided at the relative positions of the protective plates and the second chutes.

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