Pot-shaped delayer for fire fighting

Abstract

The utility model relates to the technical field of fire-fighting delayers, and discloses a fire-fighting pot-shaped delayer which comprises a delayer body and two water inlet and outlet pipes, a cleaning pipe is fixedly connected to the outer wall of the middle of the delayer body, a valve is arranged in the cleaning pipe, and a supporting assembly is connected to the inner wall of the middle of the delayer body. A cleaning assembly aligned with the cleaning pipe is connected into the supporting assembly, and the upper end and the lower end of the cleaning assembly face the two water inlet and outlet pipes correspondingly. According to the pot-shaped delayer for fire fighting, through the cleaning pipe and the internal valve arranged in the middle of the delayer body, the pot-shaped delayer can be directly connected with an external high-pressure water source for flushing, and the delayer body does not need to be disassembled; the cleaning assembly is arranged in the retarder body and can rotate under the impact of high-pressure water flow to drive the L-shaped scraping plate to comprehensively scrape the inner wall of the retarder, and the scraping assembly extends to the water inlet and outlet pipe opening, so that it is ensured that areas such as throttling holes and water outlets which are prone to being blocked are thoroughly cleaned, and cleaning blind areas are eliminated.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting delay device technology, specifically a pot-shaped delay device for fire-fighting. Background Technology

[0002] In fire protection systems, a delay device is a component used in automatic sprinkler systems. Its main function is to prevent false alarms caused by water pressure fluctuations. Delay devices are generally installed between wet alarm valves and pressure switches.

[0003] The patent with publication number CN214064239U discloses a pressure-resistant and heat-insulating fire-fighting delay device. Its structure includes a cylinder, an outlet, an inlet, a threaded section, a first insulation layer, a second insulation layer, a drain hole, and a pressure-stabilizing mechanism. This fire-fighting delay device has the following advantages: by setting the first and second insulation layers inside the cylinder, its good heat insulation performance can block external hot and cold airflows, facilitating temperature stability inside the cylinder and improving the heat insulation performance of the inner wall of the cylinder, thus enhancing operational stability. Furthermore, by setting a pressure-stabilizing mechanism inside the drain hole, after fire-fighting water is supplied, the diaphragm is propelled upwards by the water flow, causing the support rod to move upwards. This, in turn, causes the support to move upwards, leading to the bottom rod moving upwards and sealing the drain hole with the bottom plug. This achieves the effect of sealing the drain outlet during fire-fighting water supply, increasing the water flow rate and stabilizing the water pressure.

[0004] However, the aforementioned fire delay devices still have the following problems in actual use:

[0005] During long-term use, fire alarm retarder may accumulate scale, sediment, rust, and other impurities, causing blockages in the throttling orifice or drain outlet. This can lead to drainage delays or malfunction, affecting the accuracy of fire alarms. To ensure proper functioning and extend the lifespan of the fire alarm retarder, regular cleaning is usually necessary. Current cleaning methods involve disassembling the retarder entirely from the piping and then cleaning its internal components. However, due to the small openings at the top and bottom of the retarder, cleaning tools struggle to reach deep inside, resulting in blind spots and ineffective cleaning. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a pot-shaped delay device for fire fighting, which makes it easier to clean the inside of the delay device body.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a fire-fighting kettle-shaped delay device, comprising a delay device body and two inlet and outlet water pipes installed at the upper and lower ends of the delay device body, a cleaning pipe fixedly connected to the outer wall of the middle part of the delay device body, a valve installed inside the cleaning pipe, a support assembly connected to the inner wall of the middle part of the delay device body, a cleaning assembly aligned with the cleaning pipe connected inside the support assembly, and the upper and lower ends of the cleaning assembly facing the two inlet and outlet water pipes respectively.

[0008] Furthermore, the support assembly includes two limiting rings, the outer walls of which are fixedly connected to the inner wall of the retarder body, and the cleaning assembly is located between the two limiting rings.

[0009] Furthermore, the cleaning assembly includes an impeller and several scraping assemblies. The impeller is located between two limiting rings and is slidably connected to both limiting rings. The several scraping assemblies are divided into two groups, with the two groups of scraping assemblies located on the upper and lower sides of the impeller, respectively. The other ends of the two groups of scraping assemblies are aligned with two inlet and outlet water pipes, respectively. The several scraping assemblies are slidably connected to the inner wall of the delayer body.

[0010] Furthermore, the scraping assembly includes a detachable component and an L-shaped scraper. One end of the detachable component is connected to the side wall of the impeller, and the other end of the detachable component is connected to one end of the L-shaped scraper. The other end of the L-shaped scraper faces the inlet and outlet water pipes, and the side wall of the L-shaped scraper is slidably connected to the inner wall of the delayer body.

[0011] Furthermore, the detachable component includes a connecting pipe and a rectangular rod. One end of the rectangular rod is fixedly connected to the side wall of the impeller, and one end of the connecting pipe is fixedly connected to the end of the L-shaped scraper away from the inlet and outlet pipes. A rectangular opening is provided inside the connecting pipe, and the rectangular rod is slidably connected to the rectangular opening. The connecting pipe and the rectangular rod are also fastened together by bolts.

[0012] Furthermore, each of the L-shaped scrapers has an extension block fixedly connected to one end near the inlet and outlet water pipes, and the other end of each extension block has a connecting block fixedly connected to it. The connecting blocks near the same inlet and outlet water pipes abut against each other.

[0013] Furthermore, slots are provided on the surface of several extension blocks, and strips are fixedly connected to the surface of several extension blocks, with the strips and slots of adjacent extension blocks being slidably connected.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This type of fire-fighting kettle-shaped delay device can be directly connected to an external high-pressure water source for rinsing through a cleaning pipe and an internal valve located in the middle of the delay device body, without the need to disassemble the delay device body;

[0016] 2. This type of fire-fighting kettle-shaped delay device has a cleaning component installed inside the main body of the delay device. It can rotate under the impact of high-pressure water flow, driving the L-shaped scraper to thoroughly scrape the inner wall of the delay device. The scraping component extends to the inlet and outlet water pipes, ensuring thorough cleaning of easily clogged areas such as throttling holes and drain outlets, eliminating cleaning blind spots.

[0017] 3. This type of fire-fighting kettle-shaped delayer has an L-shaped scraper connected to the impeller via a detachable component. It can be replaced individually after wear, eliminating the need to replace and clean the entire component, thus reducing spare parts costs and extending the service life of the delayer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the delay device body of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the main body of the delay device of this utility model;

[0021] Figure 4 This is a detailed connection diagram of the support component and the cleaning component of this utility model;

[0022] Figure 5 This utility model Figure 4 Explosion diagrams of various components;

[0023] Figure 6 This is a detailed connection diagram of the scraping assembly, extension block, and connecting block of this utility model;

[0024] Figure 7 This utility model Figure 6 Enlarged diagram of point A in the middle.

[0025] In the diagram: 1. Delay unit body; 2. Inlet and outlet water pipes; 3. Cleaning pipe; 4. Valve; 5. Limiting ring; 6. Impeller; 7. L-shaped scraper; 8. Extension block; 9. Connecting pipe; 10. Connecting block; 11. Locking strip; 12. Rectangular rod; 901. Rectangular opening; 1001. Locking groove. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-7A fire-fighting kettle-shaped delay device includes a delay device body 1 and two inlet and outlet water pipes 2 installed at the upper and lower ends of the delay device body 1. A cleaning pipe 3 is fixedly connected to the outer wall of the middle part of the delay device body 1. A valve 4 is installed inside the cleaning pipe 3. A support assembly is connected to the inner wall of the middle part of the delay device body 1. A cleaning assembly aligned with the cleaning pipe 3 is connected inside the support assembly. The upper and lower ends of the cleaning assembly face the two inlet and outlet water pipes 2 respectively.

[0028] like Figures 1 to 7 As shown, when the fire-fighting kettle-shaped delay device of this utility model needs cleaning, simply separate the two inlet and outlet water pipes 2 from the external pipeline, then fix the external high-pressure water pipe to the cleaning pipe 3, open the valve 4, and then open the external high-pressure water pipe. The high-pressure water pipe can then deliver high-pressure water through the cleaning pipe 3 to the cleaning component inside the delay device body 1. The cleaning component will rotate inside the support component due to the impact force, thereby scraping and cleaning the inside of the delay device body 1 during the rotation. Since the two inlet and outlet water pipes 2 have been separated from the external pipeline, the wastewater flushed and scraped will flow away along one of the downward-facing inlet and outlet water pipes 2, without causing secondary pollution to the inside of the delay device body 1. At the same time, when the high-pressure water hits the cleaning component, it can also clean the cleaning component, ensuring the normal operation of the cleaning component.

[0029] As a preferred embodiment of this utility model, the support assembly includes two limiting rings 5, the outer walls of the two limiting rings 5 ​​are fixedly connected to the inner wall of the delay body 1, and the cleaning assembly is located between the two limiting rings 5.

[0030] More specifically, by setting two limiting rings 5, it can be ensured that the cleaning component will not fall out when it is inside the limiting rings 5, and at the same time, it will not block the water flow inside the delay unit body 1 when it is working normally.

[0031] As a preferred embodiment of this utility model, the cleaning assembly includes an impeller 6 and several scraping components. The impeller 6 is located between two limiting rings 5, and the impeller 6 is slidably connected to both limiting rings 5. The several scraping components are divided into two groups, and the two groups of scraping components are located on the upper and lower sides of the impeller 6, respectively. The other ends of the two groups of scraping components are aligned with the two inlet and outlet water pipes 2, respectively. The several scraping components are slidably connected to the inner wall of the delayer body 1.

[0032] More specifically, when high-pressure water is sprayed onto the impeller 6 through the cleaning pipe 3, the impeller 6 rotates between the two limiting rings 5. Then, the impeller 6 can rotate together with several scraping components, so that the inner wall of the delayer body 1 can be scraped by the scraping components to remove the adhering impurities.

[0033] As a preferred embodiment of the present invention, the scraping assembly includes a detachable component and an L-shaped scraper 7. One end of the detachable component is connected to the side wall of the impeller 6, and the other end of the detachable component is connected to one end of the L-shaped scraper 7. The other end of the L-shaped scraper 7 faces the inlet / outlet water pipe 2, and the side wall of the L-shaped scraper 7 is slidably connected to the inner wall of the delayer body 1.

[0034] More specifically, the L-shaped scraper 7 will wear down after being soaked in water for a long time and rubbing against the delayer body 1, thus reducing the cleaning effect. At this time, the L-shaped scraper 7 can be removed from the impeller 6 through the detachable component, and then the L-shaped scraper 7 can be repaired or replaced.

[0035] As a preferred embodiment of this utility model, the detachable component includes a connecting pipe 9 and a rectangular rod 12. One end of the rectangular rod 12 is fixedly connected to the side wall of the impeller 6, and one end of the connecting pipe 9 is fixedly connected to the end of the L-shaped scraper 7 away from the inlet and outlet pipes 2. A rectangular opening 901 is provided inside the connecting pipe 9, and the rectangular rod 12 is slidably connected to the rectangular opening 901. The connecting pipe 9 and the rectangular rod 12 are also fastened together by bolts.

[0036] More specifically, when it is necessary to disassemble the L-shaped scraper 7, simply use a tool (such as a screwdriver or wrench) to loosen the bolts between the connecting pipe 9 and the rectangular rod 12. Because the L-shaped scraper 7 has a certain degree of flexibility, the connecting pipe 9 on the L-shaped scraper 7 can be pulled out from the rectangular rod 12, and then the L-shaped scraper 7 can be pulled out from the adjacent inlet and outlet water pipes 2.

[0037] As a preferred embodiment of this utility model, an extension block 8 is fixedly connected to one end of several L-shaped scrapers 7 near the inlet / outlet water pipe 2, and a connecting block 10 is fixedly connected to the other end of several extension blocks 8. Several connecting blocks 10 near the same inlet / outlet water pipe 2 abut against each other.

[0038] More specifically, by setting the extension block 8 and the connecting block 10, the support force of several L-shaped scrapers 7 on the side away from the impeller 6 can be increased, so as to avoid the L-shaped scrapers 7 from tilting up when they are located inside the delayer body 1, resulting in inadequate cleaning.

[0039] As a preferred embodiment of this utility model, a plurality of extension blocks 8 are provided with slots 1001 on their surfaces, and a strip 11 is fixedly connected to the surfaces of the plurality of extension blocks 8. The strips 11 and slots 1001 of adjacent extension blocks 8 are slidably connected.

[0040] More specifically, by setting the card slot 1001 and the card strip 11, the connectivity between adjacent connecting blocks 10 can be increased, and the probability of adjacent connecting blocks 10 becoming loose or misaligned can be reduced.

[0041] Finally, it should be noted that, apart from the L-shaped scraper 7 which requires regular maintenance and replacement, the other internal components of the delayer body 1 do not need to be replaced. However, since these other internal components are also in long-term contact with corrosive media such as water flow, scale, and silt, and must withstand the impact of high-pressure water flow and mechanical friction, components such as the limit ring 5, rectangular rod 12, extension block 8, and connecting block 10 can all be made of stainless steel. The impeller 6 also needs to rotate in conjunction with the impact of high-pressure water, so it can be made of some engineering plastics (such as POM / polyoxymethylene or nylon 66), which have excellent water resistance and chemical corrosion resistance, are also lightweight, and can rotate more quickly after being impacted by water flow.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kettle-shaped delay valve for fire fighting, comprising a delay valve body (1) and two inlet and outlet water pipes (2) installed at the upper and lower ends of the delay valve body (1), characterized in that: A cleaning pipe (3) is fixedly connected to the outer wall of the middle part of the delay device body (1). A valve (4) is provided inside the cleaning pipe (3). A support assembly is connected to the inner wall of the middle part of the delay device body (1). A cleaning assembly aligned with the cleaning pipe (3) is connected inside the support assembly. The upper and lower ends of the cleaning assembly face the two inlet and outlet water pipes (2) respectively.

2. A kettle-shaped delay device for fire fighting according to claim 1, characterized in that: The support assembly includes two limiting rings (5), the outer walls of the two limiting rings (5) are fixedly connected to the inner wall of the delay body (1), and the cleaning assembly is located between the two limiting rings (5).

3. A kettle-shaped delay device for fire fighting according to claim 2, characterized in that: The cleaning assembly includes an impeller (6) and several scraping assemblies. The impeller (6) is located between two limiting rings (5), and the impeller (6) is slidably connected to both limiting rings (5). The several scraping assemblies are divided into two groups, and the two groups of scraping assemblies are located on the upper and lower sides of the impeller (6), respectively. The other ends of the two groups of scraping assemblies are aligned with the two inlet and outlet water pipes (2), respectively. The several scraping assemblies are slidably connected to the inner wall of the delayer body (1).

4. A kettle-shaped delay device for fire fighting according to claim 3, characterized in that: The scraping assembly includes a detachable component and an L-shaped scraper (7). One end of the detachable component is connected to the side wall of the impeller (6), and the other end of the detachable component is connected to one end of the L-shaped scraper (7). The other end of the L-shaped scraper (7) faces the inlet / outlet water pipe (2), and the side wall of the L-shaped scraper (7) is slidably connected to the inner wall of the delayer body (1).

5. A kettle-shaped delay device for fire fighting according to claim 4, characterized in that: The detachable assembly includes a connecting pipe (9) and a rectangular rod (12). One end of the rectangular rod (12) is fixedly connected to the side wall of the impeller (6), and one end of the connecting pipe (9) is fixedly connected to the end of the L-shaped scraper (7) away from the inlet / outlet pipe (2). A rectangular opening (901) is provided inside the connecting pipe (9). The rectangular rod (12) is slidably connected to the rectangular opening (901), and the connecting pipe (9) and the rectangular rod (12) are also fastened together by bolts.

6. A kettle-shaped delay device for fire fighting according to claim 5, characterized in that: Each of the L-shaped scrapers (7) has an extension block (8) fixedly connected to one end near the inlet / outlet pipe (2), and each of the extension blocks (8) has a connecting block (10) fixedly connected to the other end. The connecting blocks (10) near the same inlet / outlet pipe (2) abut against each other.

7. A kettle-shaped delay device for fire fighting according to claim 6, characterized in that: Each of the extension blocks (8) has a slot (1001) on its surface, and each of the extension blocks (8) has a strip (11) fixedly connected to its surface. The strips (11) and slots (1001) of adjacent extension blocks (8) are slidably connected.

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