Testing mechanism for fire-fighting equipment maintenance
By designing a testing mechanism consisting of a retractable water storage bucket, a metal bellows and a filtrate cartridge, the problems of water resource waste and environmental pollution in traditional fire hydrant water pressure testing are solved, and the accuracy and safety of the pressure gauge are ensured.
Patent Information
- Application Number
- CN202521681310.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2035-08-08
AI Technical Summary
Traditional fire hydrant water pressure testing methods lead to water waste, environmental pollution and safety hazards, and the pressure gauge is easily clogged by rust residue.
A testing mechanism was designed, which included a retractable water storage bucket, a retractable bent metal bellows, a liquid guide tube, a filtrate cylinder and a pressure gauge. The rust residue was filtered through the filtrate cylinder, and the water storage bucket collected the water to ensure the accuracy of the pressure gauge reading.
It reduces water waste, prevents environmental pollution, and improves the safety of testing and the accuracy of the pressure gauge.
Smart Images

Figure CN223332653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire detection, in particular to a testing mechanism for fire protection facility maintenance. Background Art
[0002] In the daily maintenance and inspection of fire-fighting facilities, water pressure testing of water supply facilities such as fire hydrants is an indispensable part. The traditional testing method usually uses temporary connecting pipes and pressure gauges to directly discharge the water from the fire hydrants to the ground. This method has significant disadvantages: first, it causes a large amount of water resources to be wasted; second, the directly discharged rust impurities will pollute the surrounding environment; third, the water discharge makes the surrounding environment slippery and muddy, affecting operational safety and environmental hygiene.
[0003] Therefore, it is necessary to provide a new fire protection facility maintenance testing mechanism to solve the above technical problems. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a testing mechanism for fire protection facility maintenance.
[0005] The fire protection facility maintenance test mechanism provided by the present invention comprises a retractable water storage bucket, on which a retractable and bendable metal bellows is mounted, and a liquid guide tube is mounted at the other end of the metal bellows, a rotatably connected inner-buckled fire protection interface is mounted on the head of the liquid guide tube, and a pressure gauge for measuring water pressure is mounted on the liquid guide tube;
[0006] A filtrate cartridge is installed on the liquid guide tube, and a filter cup is provided in the filtrate cartridge. A liquid inlet pipe is fixedly installed at the end of the filtrate cartridge, and the liquid inlet pipe and the liquid guide tube are connected to each other. A drain pipe for drainage is installed near the threaded opening at the tail of the filtrate cartridge, and the drain pipe and the liquid guide tube are connected to each other.
[0007] A valve is installed on the liquid guiding pipe between the liquid inlet pipe and the liquid discharge pipe, and the pressure gauge is located on the liquid guiding pipe between the valve and the liquid discharge pipe.
[0008] Preferably, the water storage barrel includes a barrel bottom, on which an elastic telescopic rubber sleeve is fixedly installed, the barrel body structure of the water storage barrel is formed by the elastic telescopic rubber sleeve, and a barrel cover is fixedly installed on the top of the elastic telescopic rubber sleeve.
[0009] Preferably, a plurality of groups of annularly distributed multi-stage telescopic rods are fixedly mounted on the bottom of the barrel, and the rod heads of the multi-stage telescopic rods are fixedly connected to the bottom of the edge of the barrel cover.
[0010] Preferably, the threaded opening at the tail end of the filtrate cartridge is covered with a threaded cover, and a center rod is fixedly installed on the inner cover surface of the threaded cover, the filter cup is fixedly installed on the rod head of the center rod, and a plurality of evenly distributed filter holes are opened at the bottom of the filter cup, and the outer wall of the filter cup is in sliding contact with the inner wall of the filtrate cartridge.
[0011] Preferably, the connection port of the drain pipe and the filtrate cartridge corresponds to the position of the middle link.
[0012] Preferably, both ends of the metal bellows are equipped with threaded quick connectors, the threaded quick connector at one end of the metal bellows is threadedly fixedly connected to the threaded mouth installed on the barrel cover, and the threaded quick connector at the other end of the metal bellows is threadedly fixedly connected to the threaded mouth of the liquid guide tube connection end.
[0013] Compared with related technologies, the fire protection facility maintenance testing mechanism provided by the present invention has the following beneficial effects:
[0014] The utility model uses a water storage bucket to collect water discharged from a fire hydrant during the test phase, which not only reduces water waste, but also avoids moisture in the surrounding environment of the fire hydrant due to water discharge from the fire hydrant during the test. The pipe body of the liquid guide pipe close to the metal bellows end can be set as a transparent pipe body, so that it is convenient for staff to check the water quality. A filter cartridge with a filter cup is provided on the liquid guide pipe, which can effectively intercept impurities such as rust residue in the water discharged from the fire hydrant to prevent it from clogging the pressure gauge, thereby ensuring accurate pressure gauge readings. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is one of the structural schematic diagrams of a preferred embodiment of the fire protection facility maintenance testing mechanism provided by the present utility model;
[0016] Figure 2 This is a second structural diagram of a preferred embodiment of the fire protection facility maintenance testing mechanism provided by the present invention;
[0017] Figure 3 for Figure 1 Schematic diagram of the structure of the threaded cover shown.
[0018] Numbers in the figure: 1. Water storage barrel; 11. Barrel bottom; 12. Elastic telescopic rubber sleeve; 13. Barrel cover; 14. Multi-stage telescopic rod; 2. Metal bellows; 21. Threaded quick connector; 3. Liquid guide tube; 4. Internal fire-fighting interface; 5. Pressure gauge; 6. Filter cartridge; 61. Liquid inlet pipe; 62. Liquid discharge pipe; 63. Threaded cover; 631. Center rod; 632. Filter cup; 632a. Filter hole; 7. Valve. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0020] The specific implementation of the present invention is described in detail below with reference to specific embodiments.
[0021] See also Figures 1 to 3 An embodiment of the present invention provides a testing mechanism for fire protection facility maintenance, which includes a retractable water storage bucket 1, a liquid guide tube 3 and a filtrate cartridge 6.
[0022] In the embodiments of the present invention, please refer to Figures 1 to 3 A retractable and bendable metal bellows 2 is installed on the water storage barrel 1, and a liquid guide tube 3 is installed at the other end of the metal bellows 2. A rotatably connected inner buckle fire interface 4 is installed on the head of the liquid guide tube 3, and a pressure gauge 5 for measuring water pressure is installed on the liquid guide tube 3;
[0023] The liquid guide tube 3 is provided with a filtrate cartridge 6, and a filter cup 632 is provided in the filtrate cartridge 6. Specifically, a liquid inlet pipe 61 is fixedly installed at the end of the filtrate cartridge 6, and the liquid inlet pipe 61 is communicated with the liquid guide tube 3. A drain pipe 62 for drainage is installed near the threaded opening at the tail of the filtrate cartridge 6, and the drain pipe 62 is communicated with the liquid guide tube 3. The threaded opening at the tail of the filtrate cartridge 6 is covered with a threaded cover 63, and a middle connecting rod is fixedly installed on the inner cover surface of the threaded cover 63. 631, the filter cup 632 is fixedly installed on the rod head of the middle link 631, and a plurality of evenly distributed filter holes 632a are opened at the bottom of the filter cup 632. The outer wall of the filter cup 632 is in sliding contact with the inner wall of the filtrate cartridge 6, and the connection port between the discharge pipe 62 and the filtrate cartridge 6 corresponds to the position of the middle link 631. A valve 7 is installed on the liquid guide pipe 3 between the liquid inlet pipe 61 and the discharge pipe 62, and the pressure gauge 5 is located on the liquid guide pipe 3 between the valve 7 and the discharge pipe 62.
[0024] It should be noted that when conducting a dynamic pressure test on a fire hydrant, the inner-hook fire interface 4 is quickly connected to the fire hydrant interface. Initially, the valve 7 is closed and the fire hydrant valve does not need to be fully opened. At this time, the rust residue at the water outlet of the fire hydrant follows the path of the water: inner-hook fire interface 4 → liquid guide tube 3 → liquid inlet pipe 61 → filter cup 632 → liquid discharge pipe 62 → liquid guide tube 3 → metal bellows 2 → water storage tank 1, and the rust residue in the water is filtered and collected by the filter cup 632.
[0025] When the rust residue at the water outlet of the fire hydrant is completely discharged, open the valve 7. At this time, the valve of the fire hydrant is fully opened, and the water discharged is along the following path: the inner buckle fire interface 4 → the liquid guide tube 3 → the metal bellows 2 → the water storage tank 1. The pressure gauge 5 can be used to effectively detect the fire hydrant outlet.
[0026] Furthermore, the water discharged from the fire hydrant during the test phase is collected by the water storage barrel 1, which not only reduces the waste of water, but also avoids the moisture in the surrounding environment of the fire hydrant caused by the discharge of water from the fire hydrant during the test.
[0027] In the present application, the tube body of the liquid guide tube 3 near the end of the metal bellows 2 can be set as a transparent tube body, so that it is convenient for the staff to check the water quality. A filtrate cartridge 6 with a filter cup 632 is set on the liquid guide tube 3, which can effectively intercept impurities such as rust residue in the water discharged from the fire hydrant to prevent it from clogging the pressure gauge 5, thereby ensuring the accuracy of the reading of the pressure gauge 5.
[0028] It should also be noted that: after the test is completed, the threaded cover 63 is unscrewed from the filtrate cartridge 6, and the filter cup 632 can be slid out. Then, the impurities in the filter cup 632 can be processed or the filter cup 632 can be backwashed with a water gun.
[0029] Furthermore, threaded quick connectors 21 are installed at both ends of the metal bellows 2. The threaded quick connector 21 at one end of the metal bellows 2 is fixedly connected to the threaded mouth installed on the barrel cover 13, and the threaded quick connector 21 at the other end of the metal bellows 2 is fixedly connected to the threaded mouth of the connecting end of the liquid guide tube 3. The designed metal bellows 2 can adjust the installation height of the internal buckle fire interface 4, so as to adapt to fire hydrants of different heights for quick docking.
[0030] In the embodiments of the present invention, please refer to Figures 1 to 3 The water storage barrel 1 includes a barrel bottom 11, on which an elastic telescopic rubber sleeve 12 is fixedly installed. The barrel body structure of the water storage barrel 1 is formed by the elastic telescopic rubber sleeve 12, and a barrel cover 13 is fixedly installed on the top of the elastic telescopic rubber sleeve 12. A plurality of groups of annularly distributed multi-stage telescopic rods 14 are fixedly installed on the barrel bottom 11, and the rod heads of the multi-stage telescopic rods 14 are fixedly connected to the bottom edge of the barrel cover 13.
[0031] It should be noted that the water storage barrel 1 has a retractable barrel structure formed by an elastic and retractable rubber sleeve 12, so that the elastic and retractable rubber sleeve 12 can be contracted when the water storage barrel 1 is carried, thereby making the water storage barrel 1 easier to carry, and when water is stored in the water storage barrel 1, the elastic and retractable rubber sleeve 12 can adjust the water storage amount by stretching the height. Among them, the multi-stage telescopic rod 14 provided provides support and guidance when the barrel body expands due to water accumulation, thereby limiting the elastic and retractable rubber sleeve 12 from excessively expanding outward, thereby improving the stability and structural reliability of the water storage barrel 1.
[0032] The operating procedures of the test mechanism for fire protection equipment maintenance provided by the utility model are as follows:
[0033] Step 1: Bring the device to the site, stretch the water storage bucket 1 to a suitable height (lock the multi-stage telescopic rod 14), and connect the metal bellows 2, liquid guide tube 3, filtrate cartridge 6 and other components;
[0034] Step 2: Connect the fire hydrant to be tested through the inner-hook fire interface 4. Adjust the length and angle of the metal bellows 2 to suit the interface position;
[0035] Step 3: Close valve 7 and slowly open the fire hydrant valve (not fully). The rust-laden water will flow through: internal fire interface 4 → liquid guide tube 3 → liquid inlet pipe 61 → filtrate cartridge 6 (the rust is intercepted by filter cup 632) → liquid discharge pipe 62 → liquid guide tube 3 → metal bellows 2 → water storage tank 1. Observe the water quality in liquid guide tube 3 (transparent section).
[0036] Step 4: After confirming that all rust residue has been removed, open valve 7 and fully open the fire hydrant valve. The water flow path will be: internal fire interface 4 → liquid guide tube 3 → metal bellows 2 → water storage tank 1. Use pressure gauge 5 to read and record the dynamic pressure of the fire hydrant water outlet.
[0037] Step 5: After the test is completed, close the fire hydrant valve, remove the connection to the fire hydrant, safely discharge or recycle the wastewater in the water storage barrel 1, unscrew the threaded cover 63, remove the filter cup 632 to clean or rinse the internal rust residue, compress the water storage barrel 1, and tidy up the device.
[0038] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0039] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A fire protection equipment maintenance testing mechanism, characterized in that: The invention comprises a retractable water storage barrel (1), a retractable and bendable metal bellows (2) being installed on the water storage barrel (1), a liquid guide tube (3) being installed at the other end of the metal bellows (2), a rotatably connected inner buckle fire-fighting interface (4) being installed on the pipe head of the liquid guide tube (3), and a pressure gauge (5) for measuring water pressure being installed on the liquid guide tube (3); A filtrate cartridge (6) is mounted on the liquid guide tube (3), and a filter cup (632) is provided in the filtrate cartridge (6). A liquid inlet pipe (61) is fixedly mounted on the end of the filtrate cartridge (6), and the liquid inlet pipe (61) and the liquid guide tube (3) are in communication with each other. A drain pipe (62) for draining water is mounted near the threaded opening at the rear of the filtrate cartridge (6), and the drain pipe (62) and the liquid guide tube (3) are in communication with each other. A valve (7) is installed on the liquid guide tube (3) between the liquid inlet tube (61) and the liquid discharge tube (62), and the pressure gauge (5) is located on the liquid guide tube (3) between the valve (7) and the liquid discharge tube (62).
2. The fire protection facility maintenance testing mechanism according to claim 1, characterized in that: The water storage barrel (1) comprises a barrel bottom (11), an elastic telescopic rubber sleeve (12) is fixedly mounted on the barrel bottom (11), the barrel body structure of the water storage barrel (1) is formed by the elastic telescopic rubber sleeve (12), and a barrel cover (13) is fixedly mounted on the top of the elastic telescopic rubber sleeve (12).
3. The fire protection facility maintenance testing mechanism according to claim 2, characterized in that: A plurality of groups of annularly distributed multi-stage telescopic rods (14) are fixedly mounted on the barrel bottom (11), and the rod heads of the multi-stage telescopic rods (14) are fixedly connected to the bottom of the edge of the barrel cover (13).
4. The fire protection facility maintenance testing mechanism according to claim 1, characterized in that: The threaded opening at the rear of the filtrate cartridge (6) is covered with a threaded cover (63) connected in a threaded manner, and a center link (631) is fixedly mounted on the inner cover surface of the threaded cover (63). The filter cup (632) is fixedly mounted on the rod head of the center link (631), and a plurality of evenly distributed filter holes (632a) are formed at the bottom of the filter cup (632). The outer wall of the filter cup (632) is in sliding contact with the inner wall of the filtrate cartridge (6).
5. The fire protection facility maintenance testing mechanism according to claim 4, characterized in that: The connection port between the drain pipe (62) and the filtrate cartridge (6) corresponds to the position of the middle connecting rod (631).
6. The fire protection facility maintenance testing mechanism according to claim 2, characterized in that: Both ends of the metal bellows (2) are installed with threaded quick connectors (21), the threaded quick connector (21) at one end of the metal bellows (2) is threadedly fixedly connected to a screw thread installed on the barrel cover (13), and the threaded quick connector (21) at the other end of the metal bellows (2) is threadedly fixedly connected to a screw thread at the connecting end of the liquid guide tube (3).