Building frequency conversion constant pressure fire water supply distribution box

Abstract

The utility model relates to the technical field of fire-fighting water supply distribution box, especially to a building frequency conversion constant voltage fire-fighting water supply distribution box, including box body and the box door of rotation installation on the box body, the both sides inner wall of box body all are seted up with mounting hole, every mounting hole all inserts and sets up cylinder, every cylinder's one side all is fixedly connected with rectangular frame, every cylinder all is fixedly connected with drive motor, every drive motor's drive end all is fixedly connected with the pivot, every pivot all is connected with the scraping strip through screw, one pivot is fixedly connected with a plurality of air extraction fan blade, another pivot is fixedly connected with a plurality of air blowing fan blade, every rectangular frame all is seted up with rectangular slot, the utility model can effectively cope with the humid environment, protect internal precision electronic components, maintain stable and reliable operation, satisfy the environmental adaptation demand of fire-fighting water supply system.

Description

Technical Field

[0001] This utility model relates to the technical field of fire water supply distribution boxes, and in particular to a building frequency conversion constant pressure fire water supply distribution box. Background Technology

[0002] With the continuous development of society and the continuous progress of technology, the related technologies of fire water supply distribution boxes are also constantly being innovated. In the fire water supply of buildings, fire water supply distribution boxes are needed to allocate and drive the fire water supply.

[0003] The patent document with publication number "CN214614368U" discloses a building frequency conversion constant pressure fire water supply distribution box, which includes a box body, a frequency converter and synchronous switching circuit module installed inside the box body, and an LCD display and a buzzer installed outside the box body.

[0004] The fire water supply distribution boxes currently in use operate in environments with high humidity, which makes it very easy for moisture to enter the distribution boxes, thereby damaging the delicate electronic components inside and hindering the normal use of the fire water supply distribution boxes. Utility Model Content

[0005] The purpose of this utility model is to solve the following shortcomings in the existing technology: the fire water supply distribution box currently in use is operated in a humid environment, which makes it very easy for moisture to enter the distribution box, thereby causing damage to its internal precision electronic components and hindering the normal use of the fire water supply distribution box. Therefore, a building frequency conversion constant pressure fire water supply distribution box is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A building frequency conversion constant pressure fire water supply distribution box includes a box body and a door rotatably installed on the box body. The inner walls on both sides of the box body are provided with mounting holes. A cylinder is inserted into each mounting hole, and a rectangular frame is fixedly connected to one side of each cylinder. Each cylinder is fixedly connected to a drive motor, and the drive end of each drive motor is fixedly connected to a rotating shaft. Each rotating shaft is connected to a scraper by screws. One rotating shaft is fixedly connected to multiple exhaust fan blades, and another rotating shaft is fixedly connected to multiple blower fan blades. Each rectangular frame is provided with a rectangular slot. A support plate is connected to the rectangular slot by two springs. A moisture-absorbing frame is provided on the support plate. A marking component is provided in each rectangular slot.

[0007] Preferably, each of the marking components includes a slide rod slidably mounted on the rectangular frame. The slide rod is connected to the support plate via a hinge rod. An annular marking groove is formed on the slide rod, and a colored marking strip is provided on the surface of the annular marking groove.

[0008] Preferably, each of the rectangular frames has an I-shaped plate on one side, the surface of the I-shaped plate is in contact with the surface of the moisture-absorbing frame, the I-shaped plate is connected to the rectangular frame by two first bolts, and two threaded grooves are opened on one side of the rectangular frame.

[0009] Preferably, each of the cylinders has multiple limiting ports on one side, and a filter screen is provided in each of the multiple limiting ports. Each filter screen has a through hole for connecting the rotating shaft. The filter screen is connected to the cylinder by multiple second bolts. A circular groove for connecting the second bolt is provided on the inner wall of one side of each limiting port. Each scraper is in contact with the surface of the corresponding filter screen.

[0010] Preferably, a rubber sleeve is fixedly fitted on the outer surface of each cylinder, and each rubber sleeve is in contact with the inner wall of the corresponding mounting hole.

[0011] Preferably, each of the rectangular frames is fixedly connected to two ear plates, and each ear plate is provided with a fixing hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are: Two drive motors start, rotating the exhaust fan and blower fan blades. Air inside the box enters the cylinder through the filter, then passes through the rectangular frame and the moisture-absorbing frame. Moisture is absorbed by the desiccant in the moisture-absorbing frame. The purified air circulates inside the box or is discharged outside, achieving dehumidification and ventilation. As the operating time increases, the desiccant absorbs moisture and becomes heavier, causing the support plate to move downwards. This movement is caused by the hinge rod, which drives the sliding rod to slide, changing the position of the colored marking strip. Maintenance personnel can observe the marking strip to determine whether the desiccant needs to be replaced. Through the coordinated operation of the above components, this building's variable frequency constant pressure fire water supply distribution box can effectively cope with humid environments, protect internal precision electronic components, maintain stable and reliable operation, and meet the environmental adaptation requirements of the fire water supply system. Attached Figure Description

[0013] Figure 1 This is a front structural diagram of a building frequency conversion constant pressure fire water supply distribution box proposed in this utility model; Figure 2 This is a partial three-dimensional structural diagram of the cylindrical and rectangular frames in this utility model; Figure 3 This is a front structural diagram of the rectangular frame and the I-shaped plate in this utility model; Figure 4 This is a partial internal structural diagram of the cylindrical and rectangular frames in this utility model. Figure 5 for Figure 3 A magnified view of part A in the image.

[0014] In the diagram: 1. Box body, 2. Cylinder, 3. Rectangular frame, 4. Rubber sleeve, 5. Scraper, 6. Shaft, 7. Second bolt, 8. Ear plate, 9. I-shaped plate, 10. First bolt, 11. Spring, 12. Moisture-absorbing frame, 13. Slide rod, 14. Bearing plate, 15. Hinge rod, 16. Color marking strip, 17. Filter screen, 18. Rectangular slot. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0017] Reference Figures 1-5 A building frequency conversion constant pressure fire water supply distribution box includes a box body 1 and a door rotatably mounted on the box body 1. The box body 1 is equipped with a frequency converter and a synchronous switching circuit module, and an LCD display and a buzzer are installed outside the box body 1. The input terminal of the microcontroller in the box body 1 is connected to the pressure sensor and the power grid current / voltage signal detector in the pipeline. The output terminal of the microcontroller is connected to the LCD display, the buzzer, the frequency converter and the synchronous switching circuit module, which can perform water supply pressure monitoring and alarm. The frequency converter and the synchronous switching circuit module are respectively connected to the water supply pump unit. It can automatically keep the water supply device constant at the set pressure value through closed-loop regulation of the pipeline water pressure. According to the water consumption, the control system controls the number of water pumps and controls the speed regulation of the water pumps by the frequency converter to achieve constant pressure water supply (wherein the frequency converter, synchronous switching circuit module, LCD display, buzzer, microcontroller, pressure sensor, power grid current / voltage signal detector and control system are all disclosed in the document CN214614368U).

[0018] Mounting holes are provided on both inner walls of the housing 1. A cylinder 2 is inserted into each mounting hole, and a rectangular frame 3 is fixedly connected to one side of each cylinder 2. A drive motor is fixedly connected inside each cylinder 2, and a rotating shaft 6 is fixedly connected to the drive end of each drive motor. A scraper 5 is connected to each rotating shaft 6 by screws. Multiple exhaust fan blades are fixedly connected to one rotating shaft 6, and multiple blower fan blades are fixedly connected to the other rotating shaft 6. The two drive motors drive the two rotating shafts 6 to rotate, which can flexibly realize the exhaust or blower mode to accelerate the airflow inside the housing 1. External air circulation is provided. Each rectangular frame 3 has a rectangular slot 18. A support plate 14 is connected to the rectangular slot 18 by two springs 11. The two ends of the springs 11 are fixedly connected to the inner wall of the rectangular slot 18 and the support plate 14, respectively. A moisture-absorbing frame 12 is provided on the support plate 14. The moisture-absorbing frame 12 has good sealing performance when connected to the rectangular slot 18, and the moisture-absorbing frame 12 can always seal and block the rectangular slot 18. The moisture-absorbing frame 12 is filled with desiccant and other moisture-absorbing materials to absorb moisture in the air. A marking component is provided in each rectangular slot 18.

[0019] refer to Figure 3 and Figure 5 Each marking component includes a slide rod 13 slidably mounted on a rectangular frame 3. The slide rod 13 is connected to a support plate 14 via a hinge rod 15. Both ends of the hinge rod 15 are hinged to the slide rod 13 and the support plate 14, respectively. An annular marking groove is provided on the slide rod 13, and a colored marking strip 16 is provided on the surface of the annular marking groove. When the desiccant in the moisture-absorbing frame 12 absorbs moisture and its weight increases, the support plate 14 is compressed by gravity and the spring 11 moves downward. This causes the slide rod 13 to slide via the hinge rod 15. The slide rod 13 has an annular marking groove and a colored marking strip 16 on its surface. As the slide rod 13 moves, the position of the colored marking strip 16 changes, which can visually display the saturation level of the moisture-absorbing material. When the colored marking strip 16 moves to the outside of the rectangular frame 3, it prompts the maintenance personnel to replace it in time.

[0020] refer to Figure 3 Each rectangular frame 3 has an I-shaped plate 9 on one side. The surface of the I-shaped plate 9 is in contact with the surface of the moisture-absorbing frame 12. The I-shaped plate 9 is connected to the rectangular frame 3 by two first bolts 10. Two threaded grooves are opened on one side of the rectangular frame 3. The two first bolts 10 are connected to the rectangular frame 3 to limit and fix the moisture-absorbing frame 12 in front and behind, preventing it from shifting back and forth during the vibration of the box 1. The surface of the I-shaped plate 9 in contact with the moisture-absorbing frame 12 is relatively smooth, and the moisture-absorbing frame 12 can move down along the I-shaped plate 9.

[0021] refer to Figure 2Each cylinder 2 has multiple limiting ports on one side, and filter screens 17 are installed in the multiple limiting ports. Each filter screen 17 has a through hole for connecting to the rotating shaft 6. The filter screen 17 is connected to the cylinder 2 by multiple second bolts 7. The inner wall of one side of each limiting port has a circular groove for connecting the second bolts 7. During installation, the through hole on the filter screen 17 is first fitted onto the outside of the rotating shaft 6, and then the multiple second bolts 7 are threaded through the filter screen 17 and connected to the corresponding circular groove. The filter screen 17 can filter large particulate impurities in the outside air to prevent them from entering the housing 1 and affecting electronic components. It is also easy to disassemble and clean. With the help of scraper 5, it can ensure ventilation efficiency. Each scraper 5 is in contact with the surface of the corresponding filter screen 17. When the rotating shaft 6 rotates, the scraper 5 slides against the surface of the filter screen 17 to clean the dust and impurities attached to the filter screen 17 and ensure smooth ventilation.

[0022] refer to Figure 2 Each cylinder 2 has a rubber sleeve 4 fixedly fitted on its outer surface. Each rubber sleeve 4 fits against the inner wall of the corresponding mounting hole. The cylinder 2 is inserted into the mounting hole, and its outer surface is fixedly fitted with the rubber sleeve 4. The rubber sleeve 4 fits tightly against the inner wall of the mounting hole. The elastic deformation of the rubber fills the installation gap, enhances the sealing when the cylinder 2 and the box 1 are connected, and reduces the seepage of external moisture from the mounting hole. Each rectangular frame 3 has two ear plates 8 fixedly connected. Each ear plate 8 has a fixing hole. One end of the cylinder 2 is inserted through the mounting hole, and the screw is inserted through the fixing hole and threaded to the corresponding mounting position on the box 1. The rectangular frame 3 and the box 1 can then be firmly connected together.

[0023] In this invention, two drive motors start, rotating the exhaust fan blades and the blower fan blades. Air inside the housing 1 enters the cylinder 2 through the filter 17, then passes through the rectangular frame 3 and the moisture-absorbing frame 12. Moisture is absorbed by the desiccant in the moisture-absorbing frame 12. The purified air circulates inside the housing 1 or is discharged outside the housing 1, achieving dehumidification and ventilation. As the operating time increases, the desiccant absorbs moisture and becomes heavier, causing the support plate 14 to move downwards. This movement is caused by the hinge rod 15, which drives the sliding rod 13 to slide, changing the position of the colored marking strip 16. Maintenance personnel can observe the position of the colored marking strip 16. The device 16 determines whether the desiccant needs to be replaced. If the moisture-absorbing frame 12 needs to be replaced, unscrew the first bolt 10, remove the I-shaped plate 9, and the moisture-absorbing frame 12 can be taken out. When cleaning the filter screen 17, unscrew the second bolt 7, remove the filter screen 17, clean it with the scraper 5, and then reinstall it to ensure the next operation effect. Through the coordinated operation of the above components, the building's frequency conversion constant pressure fire water supply distribution box can effectively cope with the humid environment, protect the internal precision electronic components, maintain stable and reliable operation, and meet the environmental adaptation requirements of the fire water supply system.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to mechanical connection or electrical connection; they can refer to direct connection or indirect connection through an intermediate medium. 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.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A building frequency conversion constant pressure fire water supply distribution box, comprising a box body (1) and a door rotatably mounted on the box body (1), characterized in that, The inner walls on both sides of the box (1) are provided with mounting holes, and a cylinder (2) is inserted into each mounting hole. A rectangular frame (3) is fixedly connected to one side of each cylinder (2). Each of the cylinders (2) is fixedly connected to a drive motor, and each drive motor is fixedly connected to a rotating shaft (6). Each rotating shaft (6) is connected to a scraper (5) by screws. One of the rotating shafts (6) is fixedly connected to multiple exhaust fan blades, and the other rotating shaft (6) is fixedly connected to multiple blower fan blades. Each rectangular frame (3) is provided with a rectangular slot (18). A bearing plate (14) is connected to the rectangular slot (18) by two springs (11). A moisture-absorbing frame (12) is provided on the bearing plate (14). A marking component is provided in each rectangular slot (18).

2. The building frequency conversion constant pressure fire water supply distribution box according to claim 1, characterized in that, Each of the marking components includes a slide rod (13) slidably mounted on the rectangular frame (3). The slide rod (13) is connected to the support plate (14) via a hinge rod (15). An annular marking groove is provided on the slide rod (13), and a colored marking strip (16) is provided on the surface of the annular marking groove.

3. A building frequency conversion constant pressure fire water supply distribution box according to claim 1, characterized in that, Each of the rectangular frames (3) has an I-shaped plate (9) on one side. The surface of the I-shaped plate (9) is attached to the surface of the moisture-absorbing frame (12). The I-shaped plate (9) is connected to the rectangular frame (3) by two first bolts (10). Two threaded grooves are opened on one side of the rectangular frame (3).

4. A building frequency conversion constant pressure fire water supply distribution box according to claim 1, characterized in that, Each of the cylinders (2) has multiple limiting ports on one side, and a filter screen (17) is provided in each of the multiple limiting ports. Each filter screen (17) has a through hole for connecting the rotating shaft (6). The filter screen (17) is connected to the cylinder (2) by multiple second bolts (7). Each of the limiting ports has a circular groove on one side inner wall for connecting the second bolt (7). Each scraper (5) is attached to the surface of the corresponding filter screen (17).

5. A building frequency conversion constant pressure fire water supply distribution box according to claim 1, characterized in that, Each of the cylinders (2) is fixedly fitted with a rubber sleeve (4) on its outer surface, and each of the rubber sleeves (4) is in contact with the inner wall of the corresponding mounting hole.

6. A building frequency conversion constant pressure fire water supply distribution box according to claim 1, characterized in that, Two ear plates (8) are fixedly connected to each of the rectangular frames (3), and each ear plate (8) has a fixing hole.

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