A fire hydrant testing device
By sealing the gap between the fire hydrant connector and the test device body using a sealing mechanism, the problem of water leakage during the fire hydrant test device test process is solved, ensuring the accuracy and safety of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN JINXIN XINCHENG TECH DEV CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-30
AI Technical Summary
During the testing process, existing fire hydrant testing devices are prone to water leakage at the connection between the device and the hydrant, affecting the testing results.
A sealing mechanism, including a bidirectional screw, slider, support frame, clamp, and sealing gasket, is used to seal the gap between the fire hydrant joint and the test device body after docking, preventing water leakage.
Effectively prevents water leakage, ensures the accuracy of water pressure data collected during the test, and avoids the impact of water overflow on the testing environment and operators.
Smart Images

Figure CN224421809U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fire protection engineering technology, and in particular relates to a fire hydrant testing device. Background Technology
[0002] Fire hydrant testing devices are indispensable testing tools in fire protection engineering to ensure the effective operation of fire protection systems in emergency situations. To ensure the normal operation and water supply capacity of fire hydrant systems and to ensure that a reliable fire water source can be provided in a timely manner to maintain fire safety when a fire occurs, operators usually need to use the testing device to test the fire hydrants regularly.
[0003] When using existing fire hydrant testing devices, they are generally installed by simply rotating them onto the fire hydrant connector and then opening the fire hydrant valve to test the water. Although the installation is simple, the water pressure will push the axial seal at the connection, thereby changing the state of the seal. This can easily cause water leakage at the connection between the fire hydrant testing device and the fire hydrant connector, thus affecting the testing results. Utility Model Content
[0004] To address the technical problem that water leakage easily occurs at the connection between the fire hydrant testing device and the fire hydrant connector during the testing process, thus affecting the testing results, this utility model provides a fire hydrant testing device.
[0005] This utility model is implemented as follows: a fire hydrant testing device includes: a testing device body installed on a fire hydrant connector, a fixing block fixedly installed on the testing device body, and a housing fixedly installed on the fixing block; and a sealing mechanism assembled on the housing, the sealing mechanism being used to seal the gap between the fire hydrant connector and the testing device body.
[0006] Preferably, the sealing mechanism includes: a bidirectional screw rotatably mounted on the inner wall of the housing; a slider threaded onto the bidirectional screw, a support frame fixedly mounted on the slider, a clamp welded onto the support frame, and a sealing gasket fixedly connected to the inner side of the clamp.
[0007] Preferably, the fire hydrant testing device further includes a blocking mechanism installed on the clamp plate for reinforcing the body of the testing device.
[0008] Preferably, the blocking mechanism includes: a connecting plate welded to the clamp, a bolt threaded on the connecting plate, a stop block rotatably mounted on one end of the bolt, a limit rod fixedly mounted on the stop block, and the limit rod slidably connected to the connecting plate.
[0009] Preferably, a slide rod is fixedly installed on the inner wall of the housing, and the slide rod is slidably connected to the slider.
[0010] Preferably, a ball bearing is provided on one side of the stop block, and a knob is fixedly installed on one end of the bolt.
[0011] Preferably, one end of the bidirectional screw extends to the outside of the housing, and a handwheel is fixedly installed at one end of the bidirectional screw.
[0012] Compared with related technologies, the fire hydrant testing device provided by this utility model has the following beneficial effects:
[0013] This solution utilizes a sealing mechanism comprised of a bidirectional screw, slider, support frame, clamp, and sealing gasket. After the initial connection between the test device body and the fire hydrant connector is completed, the gap between the fire hydrant connector and the test device body is sealed. This effectively prevents leakage even if there is leakage between the fire hydrant connector and the test device body when the fire hydrant valve is opened. This ensures the accuracy of water pressure data collected during the test and avoids the impact of water overflow on the testing environment and operators. It solves the technical problem of water leakage easily occurring at the connection between the fire hydrant test device and the fire hydrant connector during the test process, thus affecting the testing results. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of a fire hydrant testing device provided by this utility model;
[0015] Figure 2 for Figure 1 An enlarged structural diagram of part A shown in the figure;
[0016] Figure 3 for Figure 1 An enlarged structural diagram of part B shown in the figure;
[0017] Figure 4 This is a side view of the clamping plate and sealing gasket in this utility model.
[0018] Reference numerals in the attached drawings: 1. Fire hydrant connector; 2. Test device body; 3. Fixing block; 4. Housing; 5. Double-acting screw; 6. Sliding block; 7. Support frame; 8. Clamping plate; 9. Sealing gasket; 10. Connecting plate; 11. Bolt; 12. Stop block; 13. Limiting rod; 14. Sliding rod; 15. Ball bearing; 16. Handwheel. Detailed Implementation
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification and the foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification or the foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0021] This utility model embodiment provides a fire hydrant testing device, such as... Figure 1-4 As shown, the fire hydrant testing device includes: a testing device body 2 installed on the fire hydrant connector 1, a fixing block 3 fixedly installed on the testing device body 2, and a housing 4 fixedly installed on the fixing block 3; and a sealing mechanism assembled on the housing 4, which is used to seal the gap between the fire hydrant connector 1 and the testing device body 2.
[0022] In this solution, the test device body 2 is first installed on the fire hydrant connector 1 to achieve basic connection. The connection method is a known technology and will not be described here. After the connection is completed, a sealing mechanism is used to seal the gap between the fire hydrant connector 1 and the test device body 2. In this way, when the fire hydrant valve is opened, even if there is leakage between the fire hydrant connector 1 and the test device body 2, leakage can be effectively prevented, ensuring the accuracy of water pressure data collected during the test and avoiding the impact of water overflow on the testing environment and operators.
[0023] In a further preferred embodiment of the present invention, the sealing mechanism includes: a bidirectional screw 5 rotatably mounted on the inner wall of the housing 4; a slider 6 threadedly mounted on the bidirectional screw 5; a support frame 7 fixedly mounted on the slider 6; a clamping plate 8 welded to the support frame 7; and a sealing gasket 9 fixedly connected to the inner side of the clamping plate 8.
[0024] In this embodiment, after the test device body 2 and the fire hydrant connector 1 are initially connected, the operator manually rotates the bidirectional screw 5. The bidirectional screw 5 will drive the slider 6 to move, and the slider 6 will drive the support frame 7 to move synchronously. The support frame 7 will drive the clamp 8 to move closer to the connection gap between the fire hydrant connector 1 and the test device body 2. Finally, the sealing gasket 9 fixedly connected to the inner side of the clamp 8 will wrap around and squeeze the connection gap area. In this way, even if there is a water leakage between the fire hydrant connector 1 and the test device body 2, the water leakage can be effectively prevented, thereby ensuring the test effect.
[0025] In a further preferred embodiment of the present invention, the fire hydrant testing device further includes a blocking mechanism installed on the clamping plate 8 for reinforcing the body 2 of the testing device.
[0026] In this embodiment, the use of a blocking mechanism can further prevent the test device body 2 from being pushed by water pressure.
[0027] In a further preferred embodiment of the present invention, the blocking mechanism includes: a connecting plate 10 welded to the clamping plate 8, a bolt 11 threadedly installed on the connecting plate 10, a stop block 12 rotatably installed on one end of the bolt 11, a limit rod 13 fixedly installed on the stop block 12, and the limit rod 13 slidably connected to the connecting plate 10.
[0028] In this embodiment, when in use, rotating the bolt 11 will cause the stop 12 to move vertically. At the same time, the limiting rod 13 connected to the stop 12 will also slide on the connecting plate 10. When one side of the stop 12 contacts the other side of the fire hydrant connector 1, the connection strength between the fire hydrant connector 1 and the test device body 2 can be further improved, and the test device body 2 can also be effectively prevented from falling off.
[0029] In a further preferred embodiment of the present invention, a slide rod 14 is fixedly installed on the inner wall of the housing 4, and the slide rod 14 is slidably connected to the slider 6.
[0030] In this embodiment, the use of the slide bar 14 can improve the stability of the slider 6 during movement, so as to prevent rotation during movement.
[0031] In a further preferred embodiment of the present invention, a ball bearing 15 is provided on one side of the stop block 12, and a knob is fixedly installed on one end of the bolt 11.
[0032] In this embodiment, the use of ball bearings 15 reduces the friction between the stop block 12 and the fire hydrant connector 1 when the stop block 12 moves vertically, thus reducing wear. The use of knobs allows personnel to easily turn the bolt 11 by hand.
[0033] In a further preferred embodiment of the present invention, one end of the bidirectional screw 5 extends to the outside of the housing 4, and a handwheel 16 is fixedly installed on one end of the bidirectional screw 5.
[0034] In this embodiment, the use of handwheel 16 allows personnel to easily rotate the bidirectional screw 5 relatively quickly by hand.
[0035] In summary, compared with related technologies, the sealing mechanism in this solution, composed of a bidirectional screw 5, a slider 6, a support frame 7, a clamping plate 8, and a sealing gasket 9, can seal the gap between the fire hydrant connector 1 and the fire hydrant body 2 after the initial connection between the test device body 2 and the fire hydrant connector 1 is completed. Thus, even if there is leakage between the fire hydrant connector 1 and the test device body 2 when the fire hydrant valve is opened, leakage can be effectively prevented, ensuring the accuracy of water pressure data collected during the test. Simultaneously, it avoids the impact of water overflow on the testing environment and operators, solving the technical problem of water leakage easily occurring at the connection between the fire hydrant test device and the fire hydrant connector during the test, thus affecting the testing effect.
[0036] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.
[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A fire hydrant testing device, characterized in that, include: A test device body (2) is installed on a fire hydrant connector (1), a fixing block (3) is fixedly installed on the test device body (2), and a housing (4) is fixedly installed on the fixing block (3). A sealing mechanism is mounted on the housing (4) for sealing the gap between the fire hydrant connector (1) and the test device body (2).
2. The fire hydrant testing device as described in claim 1, characterized in that, The blocking mechanism includes: Rotate the bidirectional screw (5) installed on the inner wall of the housing (4); A slider (6) is threaded onto the bidirectional screw (5), a support frame (7) is fixedly mounted on the slider (6), a clamp (8) is welded onto the support frame (7), and a sealing gasket (9) is fixedly connected to the inner side of the clamp (8).
3. The fire hydrant testing device as described in claim 2, characterized in that, The fire hydrant test device also includes a blocking mechanism installed on the clamp (8) for reinforcing the test device body (2).
4. The fire hydrant testing device as described in claim 3, characterized in that, The blocking mechanism includes: A connecting plate (10) is welded onto the clamping plate (8). A bolt (11) is threaded onto the connecting plate (10). A stop block (12) is rotatably mounted on one end of the bolt (11). A limit rod (13) is fixedly mounted on the stop block (12). The limit rod (13) is slidably connected to the connecting plate (10).
5. The fire hydrant testing device as described in claim 2, characterized in that, A slide rod (14) is fixedly installed on the inner wall of the housing (4), and the slide rod (14) is slidably connected to the slider (6).
6. The fire hydrant testing device as described in claim 4, characterized in that, A ball bearing (15) is provided on one side of the stop block (12), and a knob is fixedly installed on one end of the bolt (11).
7. The fire hydrant testing device as described in claim 2, characterized in that, One end of the bidirectional screw (5) extends to the outside of the housing (4), and a handwheel (16) is fixedly installed on one end of the bidirectional screw (5).