A flow and pressure testing tool for fire protection testing
By introducing a quick-assembly and disassembly structure and electronic sensors into the flow and pressure testing tool for fire protection testing, the problems of cumbersome threaded connections and low accuracy of mechanical sensors have been solved, achieving efficient connection and high-precision data recording, and improving the convenience and accuracy of the testing tool.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHUN (ZHEJIANG) FIRE PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-10-11
- Publication Date
- 2026-07-31
AI Technical Summary
Existing flow and pressure testing tools for fire protection testing suffer from problems such as cumbersome and time-consuming threaded connections, water leakage due to wear, and low accuracy and inability to record dynamic data due to reliance on mechanical sensors.
It adopts a quick-release structure and electronic sensors to replace mechanical sensors, including quick connection methods such as sliding sleeves, springs and ball bearings. Combined with digital pressure sensors and electronic flow sensors, it achieves efficient connection and high-precision data recording.
It improves connection efficiency, avoids wear problems in threaded connections, and achieves higher testing accuracy and data recording convenience through digital signal output, which is in line with the trend of digitalization and intelligence in fire protection testing.
Smart Images
Figure CN224573157U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection testing, and more particularly to a flow and pressure testing tool for fire protection testing. Background Technology
[0002] Fire protection flow and pressure testing tools are specialized equipment used to evaluate key performance parameters of building fire protection water supply systems. They verify whether the system meets design and specification requirements for water supply capacity by simultaneously measuring the flow and pressure values at the outlet. This tool is a crucial testing method for ensuring the effective operation of fire protection facilities in emergency situations and is directly related to public safety.
[0003] As disclosed in announcement number CN219640984U, a portable fire hydrant outlet flow and pressure testing tool is installed on the pipe. After the pipe is connected to the fire hydrant, the pressure and flow of the fire hydrant can be detected. It has a simple structure, low cost, small size and light weight. One person can easily carry it to test the fire hydrants on the ship, accurately test the pipeline pressure and verify whether the flow of the fire hydrant is qualified. The testing efficiency is very high and the safety hazards are reduced. The fire hose connector is connected to the pipe thread and the fire hose connector is connected to the pipe thread. The structure is simple, the connection is reliable and the disassembly and assembly are convenient.
[0004] However, the device has some shortcomings. First, it uses a threaded connection, which requires multiple turns of screwing for installation and disassembly, making the process cumbersome and time-consuming. In addition, with long-term use, the threads may wear or become misaligned, which can easily lead to water leakage and affect the test accuracy. Second, it relies on mechanical pressure gauges and flow meters, which have drawbacks such as readings being easily affected by visual angles, low accuracy, and inability to record dynamic data. Utility Model Content
[0005] To address the aforementioned problems, the purpose of this invention is to provide a flow and pressure testing tool for fire protection testing.
[0006] The following technical solution is adopted: a flow and pressure testing tool for fire protection testing includes a pipe, on both sides of which are symmetrically snapped with two quick-release structures.
[0007] Optionally, the quick-assembly structure includes a sliding sleeve, a spring fixedly connected between the inner wall of the sliding sleeve and one side of the tube, the spring being sleeved on the outer wall of one side of the tube, the inner wall of the sliding sleeve being slidably connected to the outer wall of the tube, and a plurality of sliding holes symmetrically opened on both sides of the tube, the plurality of sliding holes being arranged in a circumferential array around the tube's reference axis, and a plurality of retaining beads being movably engaged on the inner wall of the plurality of sliding holes.
[0008] Optionally, two slots are symmetrically provided on both sides of the tube, and a sealing ring is fixedly sleeved on the inner wall of the two slots. The outer wall of the sealing ring is slidably connected to the inner wall of the sliding sleeve.
[0009] Optionally, fire hose connectors and fire hose couplings are respectively attached to both sides of the pipe by a number of locking beads, and the outer wall of one side of the fire hose connector and the fire hose coupling is slidably connected to the inner wall of the pipe.
[0010] Optionally, a clamp is fixedly provided on one side of the fire hose connector.
[0011] Optionally, a first half-pipe connector is connected to one side of the top end of the pipe, and a three-way test valve is connected to the top end of the first half-pipe connector. A digital pressure sensor is fixedly installed at the top end of the three-way test valve.
[0012] Optionally, a second half-pipe connector is provided on one side of the top end of the pipe, and an electronic flow sensor is fixedly provided on the top end of the second half-pipe connector.
[0013] Optionally, two lifting lugs are symmetrically fixed at the bottom end of the tube, and a portable device is fixedly connected between the two lifting lugs.
[0014] The technical effects that can be achieved by the technical means of this utility model are as follows: (1) In this utility model, by setting up a quick disassembly and assembly structure, the spring is driven to contract and stretch through the sliding sleeve to complete the snapping and unsnapping of the snapping ball on one side of the fire-fighting male connector or fire-fighting hose connector, which greatly improves the efficiency of on-site connection and avoids the problems of time-consuming and laborious threaded connection and wear.
[0015] (2) In this utility model, by setting a digital pressure sensor, the water pressure signal is converted into a high-precision digital signal to replace the traditional mechanical pressure gauge. By setting an electronic flow sensor, the water flow velocity is converted into an electrical signal and the flow value is calculated and output in digital form to replace the traditional mechanical flow meter, making the data reading more accurate and easier to record and transmit, which is in line with the trend of digitalization and intelligence in fire protection detection. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a half-sectional three-dimensional structural diagram of the present invention; Figure 3 for Figure 2 Enlarged 3D structural diagram at point A in the middle; Figure 4 This is a three-dimensional structural diagram of a partial component of this utility model.
[0017] In the diagram: 1. Pipe; 2. Fire hose connector; 3. First half-pipe connector; 4. Second half-pipe connector; 5. Quick-release structure; 501. Sliding sleeve; 502. Sealing ring; 503. Clamping ball; 504. Sliding hole; 505. Clamping groove; 506. Spring; 6. Fire hose connector; 7. Clamping claw; 8. Lifting lug; 9. Portable; 10. Three-way test valve; 11. Digital pressure sensor; 12. Electronic flow sensor. Detailed Implementation
[0018] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.
[0019] In the description of this utility model, it should be noted that the orientations or positional relationships indicated by terms such as "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] A preferred embodiment of the flow and pressure testing tool for fire detection provided by this utility model is as follows: Figures 1 to 4 As shown: A flow and pressure testing tool for fire protection testing includes a pipe 1, with two quick-release structures 5 symmetrically snapped on both sides of the pipe 1.
[0022] In this embodiment, the quick-assembly and disassembly structure 5 includes a sliding sleeve 501. A spring 506 is fixedly connected between the inner wall of the sliding sleeve 501 and one side of the tube 1. The spring 506 is sleeved on the outer wall of one side of the tube 1. The inner wall of the sliding sleeve 501 is slidably connected to the outer wall of the tube 1. Several sliding holes 504 are symmetrically opened on both sides of the tube 1. The several sliding holes 504 are arranged in a circular array around the reference axis of the tube 1. Several locking beads 503 are movably engaged on the inner wall of the several sliding holes 504.
[0023] Through the above scheme, the sliding sleeve 501 drives the spring 506 to contract and stretch, so as to complete the engagement and disengagement of the locking ball 503 on one side of the fire hose connector 2 or the fire hose connector 6. The spring 506 provides the thrust of the sliding sleeve 501, so that the locking ball 503 can be locked in the sliding hole 504 and cannot be displaced. At the same time, the outer wall of the sealing ring 502 contacts the inner wall of the sliding sleeve 501, so as to perform its sealing function.
[0024] In this embodiment, two slots 505 are symmetrically opened on both sides of the tube 1. A sealing ring 502 is fixedly sleeved on the inner wall of the two slots 505, and the outer wall of the sealing ring 502 is slidably connected to the inner wall of the sliding sleeve 501.
[0025] By fixing the sealing ring 502 to the outer wall of the slot 505, the quick installation of the quick disassembly structure 5 is completed, ensuring the sealing of the connection between the fire hose connector 2 or the fire hose connector 6 and both ends of the pipe 1, and preventing water leakage.
[0026] In this embodiment, fire-fighting male connector 2 and fire hose connector 6 are respectively connected to both sides of the pipe 1 by a number of locking beads 503. The outer wall of one side of the fire-fighting male connector 2 and the fire hose connector 6 are slidably connected to the inner wall of the pipe 1.
[0027] With the above scheme, when the fire hose connector 2 or fire hose connector 6 is pushed into the inner wall of the pipe 1, the retaining ball 503 is pushed into the sliding hole 504 and then sinks into the concave ring of the fire hose connector 2 or fire hose connector 6. At this time, the sliding sleeve 501 is released to fix the retaining ball 503, which can quickly complete the snap-fit relationship between the fire hose connector 2 or fire hose connector 6 and the inner wall of the pipe 1. When it is necessary to remove, the sliding sleeve 501 is slid to compress the spring 506, and the fire hose connector 2 or fire hose connector 6 can be pulled out.
[0028] In this embodiment, a clamp 7 is fixedly provided on one side of the fire hose connector 6.
[0029] With the above solution, the clamp 7 is located on one side of the fire hose connector 6 and works with the fire hydrant to achieve quick locking and unlocking without tools.
[0030] In this embodiment, a first half-pipe connector 3 is connected to one side of the top end of the pipe 1, a three-way test valve 10 is connected to the top end of the first half-pipe connector 3, and a digital pressure sensor 11 is fixedly installed at the top end of the three-way test valve 10.
[0031] The above scheme connects the digital pressure sensor 11 and the three-way test valve 10 to the inside of the pipe 1 using the first half-pipe connector 3. The three-way test valve 10 controls the flow of water and its top guides the digital pressure sensor 11. By setting the digital pressure sensor 11, the water pressure signal is converted into a high-precision digital signal, replacing the traditional mechanical pressure gauge and achieving higher accuracy.
[0032] In this embodiment, a second half-pipe connector 4 is connected to one side of the top end of the pipe 1, and an electronic flow sensor 12 is fixedly installed at the top end of the second half-pipe connector 4.
[0033] The above scheme connects the electronic flow sensor 12 to the inside of the pipe 1 using the second half-pipe connector 4. By setting the electronic flow sensor 12, the water flow velocity is converted into an electrical signal and the flow value is calculated and output in digital form, replacing the traditional mechanical flow meter, making the data reading more accurate and easier to record and transmit.
[0034] In this embodiment, two lifting lugs 8 are symmetrically fixed at the bottom end of the tube 1, and a portable device 9 is fixedly connected between the two lifting lugs 8.
[0035] The above scheme, by setting up a portable device 9 and connecting it between two lugs 8, makes it easy to carry the device and travel between different test points.
[0036] Working principle: When operating and using this utility model, as follows... Figures 1 to 4 As shown, during use, the sliding sleeve 501 drives the spring 506 to contract and stretch, so as to complete the engagement and disengagement of the locking ball 503 on one side of the fire hose connector 2 or the fire hose connector 6. The spring 506 provides the thrust of the sliding sleeve 501, so that the locking ball 503 can be locked in the sliding hole 504 and cannot be displaced. At the same time, the outer wall of the sealing ring 502 contacts the inner wall of the sliding sleeve 501, so as to perform its sealing function.
[0037] When the fire hose connector 2 or fire hose connector 6 is pushed into the inner wall of the pipe 1, the retaining ball 503 is pushed into the sliding hole 504 and then sinks into the concave ring of the fire hose connector 2 or fire hose connector 6. At this time, the sliding sleeve 501 is released to fix the retaining ball 503, which can quickly complete the connection between the fire hose connector 2 or fire hose connector 6 and the inner wall of the pipe 1. When it is necessary to remove it, the sliding sleeve 501 is slid to compress the spring 506, and the fire hose connector 2 or fire hose connector 6 can be pulled out.
[0038] When the detection point is close to the floor drain or drainage outlet, the male fire hose connector 2 is directly connected to the female quick-connect connector on the fire hydrant. When the detection point is far from the floor drain or drainage outlet, the fire hydrant is connected to the fire hose, and then the male fire hose connector 2 is connected to the female quick-connect connector on the fire hose. The fire hydrant is opened for testing. By reading the data from the digital pressure sensor 11 and the electronic flow sensor 12, and comparing them with the standard flow and pressure values required on the designed curve table, further predictions are made about the fire protection system and fire hydrants to ensure safety.
[0039] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification of this utility model can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.
Claims
1. A flow and pressure testing tool for fire protection testing, comprising a pipe (1), characterized in that: The tube (1) has two quick-release structures (5) symmetrically snapped on both sides; The quick-assembly structure (5) includes a sliding sleeve (501). A spring (506) is fixedly connected between the inner wall of the sliding sleeve (501) and one side of the tube (1). The spring (506) is sleeved on the outer wall of one side of the tube (1). The inner wall of the sliding sleeve (501) is slidably connected to the outer wall of the tube (1). Several sliding holes (504) are symmetrically opened on both sides of the tube (1). The several sliding holes (504) are arranged in a circular array with the reference axis of the tube (1) as the center. Several locking beads (503) are movably engaged on the inner wall of the several sliding holes (504).
2. The flow and pressure testing tool for fire detection according to claim 1, characterized in that: The tube (1) has two symmetrical slots (505) on both sides. The inner walls of the two slots (505) are fixedly fitted with sealing rings (502). The outer wall of the sealing rings (502) is slidably connected to the inner wall of the sliding sleeve (501).
3. The flow and pressure testing tool for fire detection according to claim 1, characterized in that: The pipe (1) has a fire-fighting male connector (2) and a fire hose connector (6) respectively connected to both sides by a number of locking beads (503). The outer wall of one side of the fire-fighting male connector (2) and the fire hose connector (6) are slidably connected to the inner wall of the pipe (1).
4. The flow and pressure testing tool for fire protection testing according to claim 3, characterized in that: The fire hose connector (6) is fixedly provided with a claw (7) on one side.
5. A flow and pressure testing tool for fire detection according to claim 1, characterized in that: The top of the pipe (1) is connected to a first half-pipe connector (3), and the top of the first half-pipe connector (3) is connected to a three-way test valve (10). The top of the three-way test valve (10) is fixedly equipped with a digital pressure sensor (11).
6. The flow and pressure testing tool for fire detection according to claim 1, characterized in that: The top of the pipe (1) is connected to a second half-pipe connector (4), and an electronic flow sensor (12) is fixedly installed at the top of the second half-pipe connector (4).
7. The flow and pressure testing tool for fire protection testing according to claim 1, characterized in that: The bottom end of the tube (1) is symmetrically fixed with two lifting lugs (8), and a portable device (9) is fixedly connected between the two lifting lugs (8).