Fire hydrant system water testing device for fire detection

By installing a connecting assembly consisting of a rotating engagement wedge and a locking plate on the fire hydrant, the problem of loosening and falling off the connecting pipe was solved, achieving stable connection and water pressure display during the fire hydrant test process, thus improving the reliability and ease of operation of the test.

CN224404250UActive Publication Date: 2026-06-26BEIJING ZHONGAN JINGCHUANG FIRE PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING ZHONGAN JINGCHUANG FIRE PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-07-09
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

During the testing of existing fire hydrants, the connecting pipes are prone to loosening or falling off due to water pressure, lacking tightness and leading to potential leaks.

Method used

A connecting assembly that uses a rotating turntable to engage wedges, combined with damping pads and clamping plates, achieves a secure connection between the connecting pipe and the fire hydrant, preventing leakage.

Benefits of technology

It effectively prevents the connecting pipe from loosening or falling off, ensuring the stability and accuracy of the water test process, facilitating connection operations, and displaying water pressure data in real time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fire hydrant, and disclose a fire hydrant system water testing device for fire detection, including fire hydrant body still include: the rotating disc that rotates in fire hydrant body top, and the side flange of fire hydrant body is connected with the connecting port. Through the setting of connecting assembly, the connecting pipe is aligned with the connecting port, and then the connecting pipe is inserted in the inner cavity of the connecting port, and the second wedge is inserted in the inner cavity of the positioning shell and engaged with the first wedge while being inserted, and the spring is opened while being engaged with the first wedge, and the first wedge is moved while the first wedge is opened, and the sliding sleeve is moved on the surface of the sliding rod while the first wedge is moved, at this moment, the first wedge and the second wedge are firmly engaged, and then the damping pad is attached to the inner cavity of the connecting pipe, preventing water leakage, and then the clamping plate is rotated through the rotating shaft after connection.
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Description

Technical Field

[0001] This utility model relates to the field of fire hydrant technology, specifically a fire hydrant system testing device for fire detection. Background Technology

[0002] Fire hydrants, formally known as fire hoses, are fixed fire-fighting facilities whose main function is to control and isolate combustibles and eliminate ignition sources. The fire hydrant system testing device, also known as a fire hydrant pressure tester, is used by fire inspection departments to measure the pressure of the fire hydrant system to accurately determine its performance. To ensure the fire hydrants can be used normally during firefighting, regular water testing is essential. This test primarily checks whether the water flow of each fire hydrant meets the standards.

[0003] However, during the water testing process, it is usually necessary to use connecting pipes to connect fire hydrants to other equipment. Most existing connecting pipes are fixed to fire hydrants by threading or sleeve, but this fixing method has certain hidden dangers. When water comes out of the fire hydrant, the connecting pipe may loosen or fall off due to the water pressure, lacking sufficient tightness. Utility Model Content

[0004] The purpose of this invention is to provide a fire hydrant system testing device for fire protection testing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire hydrant system testing device for fire detection, comprising a fire hydrant body, and further comprising:

[0006] A turntable rotates on top of the fire hydrant body. A flange on one side of the fire hydrant body is connected to a connection port. A connection pipe is provided on one side of the connection port. Positioning shells are fixedly connected to both ends of the connection port. A connection assembly is provided in the inner cavity of the positioning shell. The connection assembly includes a pull rod, a first wedge, and a second wedge.

[0007] Preferably, one side of the pull rod is inserted into the inner cavity of the positioning shell, one side of the pull rod is fixedly connected to the first wedge, one side of the first wedge is engaged with the second wedge, and one side of the second wedge extends through to the outer wall of the positioning shell and is fixedly connected to the connecting pipe.

[0008] Preferably, springs are fixedly connected to all four corners of one end of the first wedge, and one end of each spring is fixedly connected to the inner wall of the positioning shell.

[0009] Preferably, both ends of the first wedge are fixedly connected to sliding sleeves, and the inner cavity of each sliding sleeve is fitted with a sliding rod, both ends of which are fixedly connected to the inner wall of the positioning shell.

[0010] Preferably, a damping pad is fixedly connected to one side of the connection port, and the surface of the damping pad is in contact with the inner wall of the connecting pipe.

[0011] Preferably, both ends of the connector are fixedly connected to a locking block, and both ends of the connector tube are rotatably connected to a locking plate via a rotating shaft, with the bottom of one side of the locking plate in contact with the locking block.

[0012] Preferably, a pressure gauge for displaying water pressure is fixedly connected to one side of the fire hydrant body.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the setting of the connecting component, aligns the connecting pipe with the connecting port, and then inserts the connecting pipe into the inner cavity of the connecting port. Simultaneously, the second wedge is inserted into the inner cavity of the positioning shell and engages with the first wedge. While engaging with the first wedge, a spring opens the wedge, causing it to move. Simultaneously, the sliding sleeve moves against the surface of the sliding rod, ensuring a complete and secure engagement between the first and second wedges. The damping pad then adheres to the inner cavity of the connecting pipe to prevent leakage. After connection, the clamping plate is rotated via a pivot and engaged in the inner cavity of the clamping block, achieving a certain degree of tightness in the connection between the connecting pipe and the connecting port. This allows for effective and convenient connection of the connecting pipe, facilitating subsequent water testing. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the fire hydrant system testing device for fire protection testing provided by this utility model;

[0016] Figure 2 A schematic diagram of the display structure provided for this utility model;

[0017] Figure 3 A schematic diagram of the connection component structure provided by this utility model;

[0018] Figure 4 A schematic diagram of the card block structure provided by this utility model.

[0019] In the diagram: 1. Fire hydrant body; 2. Turntable; 3. Connection port; 4. Connecting pipe; 5. Positioning shell; 6. Connecting assembly; 601. Pull rod; 602. First wedge; 603. Second wedge; 604. Spring; 605. Sliding sleeve; 606. Sliding rod; 7. Damping pad; 8. Locking block; 9. Locking plate; 10. Pressure gauge. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 As shown, a fire hydrant system testing device for fire protection testing includes a fire hydrant body 1, and further includes:

[0022] A turntable 2 rotates on top of the fire hydrant body 1. A flange on one side of the fire hydrant body 1 is connected to a connection port 3. A connection pipe 4 is provided on one side of the connection port 3. Positioning shells 5 are fixedly connected to both ends of the connection port 3. A connection assembly 6 is provided in the inner cavity of the positioning shell 5. The connection assembly 6 includes a pull rod 601, a first wedge 602, and a second wedge 603.

[0023] One side of the pull rod 601 is inserted into the inner cavity of the positioning shell 5. One side of the pull rod 601 is fixedly connected to the first wedge 602. One side of the first wedge 602 is engaged with the second wedge 603. One side of the second wedge 603 extends through to the outer wall of the positioning shell 5 and is fixedly connected to the connecting pipe 4. Springs 604 are fixedly connected to the four corners of one end of the first wedge 602. One end of the springs 604 is fixedly connected to the inner wall of the positioning shell 5. Sliding sleeves 605 are fixedly connected to both ends of the first wedge 602. Sliding rods 606 are fitted inside the inner cavities of the sliding sleeves 605. Both ends of rod 606 are fixedly connected to the inner wall of positioning shell 5. A damping pad 7 is fixedly connected to one side of connection port 3. The surface of damping pad 7 is in contact with the inner wall of connecting pipe 4. Both ends of connection port 3 are fixedly connected to locking blocks 8. Both ends of connecting pipe 4 are rotatably connected to locking plates 9 via rotating shafts. The bottom of one side of locking plate 9 is in contact with locking blocks 8. When it is necessary to test the water flow of fire hydrant body 1, first align connecting pipe 4 with connection port 3, then insert connecting pipe 4 into the inner cavity of connection port 3. At the same time as insertion, the second wedge 603 is driven to be inserted into the positioning shell 5. The inner cavity of shell 5 engages with the first wedge 602. Simultaneously, it is opened by spring 604, causing the first wedge 602 to move. This movement of the first wedge 602 also assists in the movement of the sliding sleeve 605 on the surface of the sliding rod 606. At this point, the first wedge 602 and the second wedge 603 are fully and firmly engaged. Subsequently, the damping pad 7 adheres to the inner cavity of the connecting pipe 4 to prevent leakage. After the connection is completed, the clamping plate 9 is moved via the rotating shaft. Rotate the plate 9 and engage it with the inner cavity of the block 8 to achieve a certain degree of tightness in the connection between the connecting pipe 4 and the connecting port 3. This allows for an effective and convenient connection of the connecting pipe 4. After the connection is completed, rotate the turntable 2. The rotation of the turntable 2 opens the valve inside the fire hydrant body 1, and water is discharged from the connecting port 3 and into the inner cavity of the connecting pipe 4. Finally, during the water discharge process, the water hammer pressure inside the fire hydrant body 1 will be displayed on the surface of the pressure gauge 10 for personnel to check the pressure.

[0024] A pressure gauge 10 for displaying water pressure is fixedly connected to one side of the fire hydrant body 1. With the setting of the pressure gauge 10, the pressure inside the fire hydrant body 1 can be conveniently displayed on the surface of the pressure gauge 10 during the water discharge process, which is convenient for subsequent personnel to check.

[0025] Working principle: First, align the connecting tube 4 with the connecting port 3, then insert the connecting tube 4 into the inner cavity of the connecting port 3. Simultaneously, the second wedge 603 is inserted into the inner cavity of the positioning shell 5 and engages with the first wedge 602. While engaging with the first wedge 602, it is opened by the spring 604. As the first wedge 602 opens, it moves, and simultaneously, the sliding sleeve 605 moves on the surface of the sliding rod 606. At this point, the first wedge 602 and the second wedge 603 are fully and firmly engaged. Then, the damping pad 7 engages with the inner cavity of the connecting tube 4. To prevent leakage, after the connection is completed, the clamping plate 9 is rotated through the shaft and clamped into the inner cavity of the clamping block 8, so that the connection between the connecting pipe 4 and the connecting port 3 is tightened to a certain extent, thus enabling effective and convenient connection of the connecting pipe 4. After the connection is completed, the turntable 2 is rotated, and the valve inside the fire hydrant body 1 is opened by the rotation of the turntable 2. Then the water source is discharged from the connecting port 3 and discharged into the inner cavity of the connecting pipe 4. Finally, during the water discharge process, the water hammer pressure inside the fire hydrant body 1 will be displayed on the surface of the pressure gauge 10 so that personnel can check the pressure.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] 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 hydrant system water testing device for fire detection, comprising a hydrant body (1), characterized in that, Also includes: A turntable (2) rotates on the top of the fire hydrant body (1). A flange on one side of the fire hydrant body (1) is connected to a connection port (3). A connecting pipe (4) is provided on one side of the connection port (3). A positioning shell (5) is fixedly connected to both ends of the connection port (3). A connecting assembly (6) is provided in the inner cavity of the positioning shell (5). The connecting assembly (6) includes a pull rod (601), a first wedge (602), and a second wedge (603).

2. The hydrant system water testing device of claim 1, wherein: One side of the pull rod (601) is inserted into the inner cavity of the positioning shell (5). One side of the pull rod (601) is fixedly connected to the first wedge (602). One side of the first wedge (602) is engaged with the second wedge (603). One side of the second wedge (603) extends through to the outer wall of the positioning shell (5) and is fixedly connected to the connecting pipe (4).

3. The hydrant system water testing device of claim 2, wherein: Springs (604) are fixedly connected to the four corners of one end of the first wedge (602), and one end of the spring (604) is fixedly connected to the inner wall of the positioning shell (5).

4. A fire hydrant system testing device for fire protection testing according to claim 2, characterized in that: Both ends of the first wedge (602) are fixedly connected to a sliding sleeve (605), and the inner cavity of the sliding sleeve (605) is fitted with a sliding rod (606), and both ends of the sliding rod (606) are fixedly connected to the inner wall of the positioning shell (5).

5. A fire hydrant system testing device for fire protection testing according to claim 1, characterized in that: A damping pad (7) is fixedly connected to one side of the connection port (3), and the surface of the damping pad (7) is in contact with the inner wall of the connecting pipe (4).

6. A fire hydrant system testing device for fire protection testing according to claim 1, characterized in that: Both ends of the connection port (3) are fixedly connected to the locking blocks (8), and both ends of the connection tube (4) are rotatably connected to the locking plates (9) through the rotating shaft. The bottom of one side of the locking plate (9) is in contact with the locking blocks (8).

7. A fire hydrant system testing device for fire protection testing according to claim 1, characterized in that: A pressure gauge (10) for displaying water pressure is fixedly connected to one side of the fire hydrant body (1).