Fire-fighting signal butterfly valve

Abstract

The utility model discloses a fire-fighting signal butterfly valve which structurally comprises a machine body, a valve body, a valve rod, a butterfly plate, a hand wheel, a display panel and a fixing structure, the fixing structure is arranged on the outer side of the valve body, and after a pressing rod is pressed, an inserting block is matched with a spring, so that the butterfly valve can be better driven to be rapidly installed; meanwhile, the situation that a connecting screw is prone to rusting and aging is avoided, the service life is prolonged, the mounting efficiency of the butterfly valve is effectively improved, a display panel is arranged at the top of the machine body, a fluorescent layer is arranged on the inner side of the display panel, and a fluorescent layer is sprayed on the surface of an indicating pointer, so that a worker can conveniently and better work the butterfly valve at night or in the environment with insufficient light. And distinguishing the opening and closing states of the butterfly valve.

Description

Technical Field

[0001] The utility model relates to a fire signal butterfly valve, belonging to the field of fire signal butterfly valves. Background Art

[0002] The signal butterfly valve is a throttling device suitable for high-rise building fire protection systems and other pipeline systems that need to display the valve switch status. The signal butterfly valve is suitable for pipelines in petroleum, chemical, food, medicine, papermaking, hydropower, shipping, water supply and drainage, smelting, energy and other systems. It can be used as a regulating and throttling device on a variety of corrosive, non-corrosive gas, liquid, semi-fluid and solid powder pipelines and containers.

[0003] A Chinese patent discloses a fire signal butterfly valve (publication number: CN212480160U), comprising a box body at the upper end of the fire signal butterfly valve, a box cover is provided at the upper end of the box body, a sealing plate is fixed at the lower end of the box cover, a mounting cavity is provided in the sealing plate, a telescopic rod is rotatably connected to the inner bottom of the mounting cavity, the upper end of the telescopic rod passes through the box cover and is connected to a limiting mechanism, a plurality of sector plates are fixed at equal intervals on the outer wall of the telescopic rod in the circumferential direction, a device groove corresponding to the sector plates is provided on the inner wall of the mounting cavity, an elastic mechanism is provided in the device groove, and a plurality of opening and closing mechanisms connected to the elastic mechanism are provided on the outer wall of the sealing plate.

[0004] When the signal butterfly valve is working at night, the switch status of the butterfly valve cannot be clearly identified due to insufficient light. In addition, in a humid environment, the screws are prone to rust and aging during the installation of the signal butterfly valve, which makes the butterfly valve unable to work normally. The installation is also cumbersome and inconvenient, and the installation efficiency is also low. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a fire signal butterfly valve to solve the problems in the prior art that when the signal butterfly valve is working at night, the switch state of the butterfly valve cannot be clearly identified due to insufficient light, and in a humid environment, the screws are prone to rust and aging during the installation of the signal butterfly valve, which makes the butterfly valve unable to work normally, and the installation is cumbersome and inconvenient, and the installation efficiency is also low.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a fire signal butterfly valve, including a body, a valve body, a valve stem, a butterfly plate, a handwheel, a display panel and a fixed structure, the valve body is arranged at the bottom of the body, the butterfly plate rotates in the middle of the inner side of the valve body through the valve stem, a display panel is arranged at the top of the body, and the right end of the body is connected to the handwheel; the fixed structure includes a limit block, a limit groove, a pressure rod, a spring, a push rod and an insert block, a limit groove is provided at the front end of the inner side of the limit block, the inner side of the limit groove is connected to the pressure rod, the bottom of the pressure rod is vertically fixed to the spring, the top of the pressure rod is fixed to the push rod as a whole, the top of the push rod is fixed to the insert block, and the rear end of the limit block is fixed to the valve body as a whole.

[0007] Furthermore, the display panel includes a fixed panel, a fluorescent ring and an indicator needle. The inner side of the fixed panel is fixed to the fluorescent ring, the middle part of the inner side of the fixed panel is provided with an indicator needle, and the top of the body is fixed to the fixed panel.

[0008] Furthermore, the plug block is in a semicircular arc shape, and a friction pattern is arranged on the top of the plug block.

[0009] Furthermore, the pressure rod is composed of a fixing rod and a rectangular plate, and the bottom of the rectangular plate is vertically fixed to the spring, while the fixing rod is movably connected to the limiting groove.

[0010] Furthermore, a fluorescent layer is sprayed on the top surface of the fluorescent ring, and display identification characters are arranged on the surface of the fluorescent ring, and a fluorescent layer is also sprayed on the outside of the indicator needle.

[0011] Advantages: The utility model provides a fire signal butterfly valve with a fixed structure on the outside of the valve body. After the pressure rod is pressed, the plug cooperates with the spring to facilitate better driving the butterfly valve for quick installation. It also avoids the rust and aging of the connecting screws, increases the service life, and effectively improves the installation efficiency of the butterfly valve.

[0012] Advantage 2: The fire signal butterfly valve of the utility model has a display panel on the top of the body, a fluorescent switch arranged on the inner side of the display panel and a fluorescent layer sprayed on the surface of the indicator needle, which makes it easier for staff to distinguish the switch status of the butterfly valve at night or in low light conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the display panel structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the fixing structure of the utility model;

[0017] Figure 4 It is a schematic front view of the fixing structure of the utility model.

[0018] In the figure: body 1, valve body 2, valve stem 3, butterfly plate 4, hand wheel 5, display panel 6, fixing structure 7, fixing panel 61, fluorescent ring 62, indicator needle 63, limit block 71, limit groove 72, pressure rod 73, spring 74, push rod 75, plug block 76. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] See also Figure 1 The utility model provides a fire signal butterfly valve through improvement, including a body 1, a valve body 2, a valve stem 3, a butterfly plate 4, a hand wheel 5, a display panel 6 and a fixed structure 7. The valve body 2 is arranged at the bottom of the body 1, and the butterfly plate 4 rotates in the middle of the inner side of the valve body 2 through the valve stem 3. The display panel 6 is arranged on the top of the body 1, and the right end of the body 1 is connected with the hand wheel 5. The setting of the hand wheel 5 is convenient for the staff to operate.

[0021] See also Figure 2 The present invention provides a fire signal butterfly valve through improvement. The fixed structure 7 includes a limit block 71, a limit groove 72, a pressure rod 73, a spring 74, a push rod 75 and an insert block 76. The limit groove 72 is provided at the front end inside the limit block 71. The inner side of the limit groove 72 is connected to the pressure rod 73. The pressure rod 73 is composed of a fixing rod and a rectangular plate. The bottom of the rectangular plate is vertically fixed to the spring 74, and the fixing rod is movably connected to the limit groove 72. The bottom of the pressure rod 73 is vertically fixed to the spring 74. The top of the pressure rod 73 is fixed to the push rod 75 as a whole. The top of the push rod 75 is fixed to the insert block 76. The insert block 76 is semicircular, and the top of the insert block 76 is provided with friction lines. The rear end of the limit block 71 is fixed to the valve body 2 as a whole. After the pressure rod 73 and the spring 74 cooperate with each other, it is convenient to drive the insert block 76 to work.

[0022] See also Figure 3 and Figure 4The utility model provides a fire signal butterfly valve through improvement. The display plate 6 includes a fixed plate 61, a fluorescent ring 62 and an indicator needle 63. The inner side of the fixed plate 61 is fixed to the fluorescent ring 62. The top surface of the fluorescent ring 62 is sprayed with a fluorescent layer, and the surface of the fluorescent ring 62 is provided with display identification text. At the same time, the outer side of the indicator needle 63 is also sprayed with a fluorescent layer. The indicator needle 63 is provided in the middle of the inner side of the fixed plate 61. The top of the body 1 is fixed to the fixed plate 61. The sprayed fluorescent layer is convenient for staff to observe.

[0023] The working process is as follows:

[0024] 1. When the valve body 2 needs to be installed, the limit block 71 can be embedded in the required installation position, and during the installation process, the staff can press the pressure rod 72 downward to compress the spring 74, and then the push rod 75 can shrink the plug 76 into the limit block 71. After the limit block 71 is completely embedded in the installation position, the pressure rod 72 is released, and the spring 74 can be reset to insert and fix the plug 76 in the installation position;

[0025] Second, after the staff uses the butterfly valve at night, the fluorescent ring 62 arranged on the inner side of the fixed plate 61 and the fluorescent layer arranged on the surface of the indicator needle 63 make it easier for the staff to observe the switch status. When the butterfly plate 4 needs to be switched on and off, the user can rotate the hand wheel 5 to make the valve stem 3 drive the butterfly plate 4 to rotate.

[0026] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire signal butterfly valve, characterized in that: The valve body (2) comprises a machine body (1), a valve body (2), a valve stem (3), a butterfly plate (4), a hand wheel (5), a display panel (6) and a fixed structure (7); the valve body (2) is arranged at the bottom of the machine body (1); the butterfly plate (4) rotates in the middle of the inner side of the valve body (2) through the valve stem (3); the display panel (6) is arranged at the top of the machine body (1); and the right end of the machine body (1) is connected to the hand wheel (5); The fixing structure (7) comprises a limit block (71), a limit groove (72), a pressure rod (73), a spring (74), a push rod (75) and an insert block (76); the limit groove (72) is provided at the front end of the inner side of the limit block (71); the inner side of the limit groove (72) is connected to the pressure rod (73); the bottom of the pressure rod (73) is vertically fixed to the spring (74); the top of the pressure rod (73) is fixed to the push rod (75) as a whole; the top of the push rod (75) is fixed to the insert block (76); and the rear end of the limit block (71) is fixed to the valve body (2) as a whole.

2. A fire signal butterfly valve according to claim 1, characterized in that: The display panel (6) comprises a fixed panel (61), a fluorescent ring (62) and an indicator needle (63); the inner side of the fixed panel (61) is fixed to the fluorescent ring (62); the middle part of the inner side of the fixed panel (61) is provided with an indicator needle (63); and the top end of the machine body (1) is fixed to the fixed panel (61).

3. A fire signal butterfly valve according to claim 1, characterized in that: The insert block (76) is in a semicircular arc shape, and a friction pattern is provided on the top of the insert block (76).

4. A fire signal butterfly valve according to claim 1, characterized in that: The pressure rod (73) is composed of a fixing rod and a rectangular plate, and the bottom of the rectangular plate is vertically fixed to the spring (74), while the fixing rod is movably connected to the limiting groove (72).

5. A fire signal butterfly valve according to claim 2, characterized in that: The top surface of the fluorescent ring (62) is sprayed with a fluorescent layer, and the surface of the fluorescent ring (62) is provided with display identification characters, and the outer side of the indicator needle (63) is also sprayed with a fluorescent layer.

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