Water pressure testing device for fire protection facilities

Abstract

This utility model relates to the field of water pressure testing technology, specifically a water pressure testing device for fire protection facilities. It includes a connector with a connecting end at its tail end. The tail end of the connecting end is connected to an axially rotatable end sleeve assembly. The tail end of the end sleeve assembly is connected to a water pressure gauge. The connecting end and the end sleeve assembly are connected by several connecting components. The end sleeve assembly includes a movable end sleeve and a ball valve switch. The connecting components include a pressure plate and a bolt with a handle. This water pressure testing device for fire protection facilities allows the end sleeve assembly to rotate axially at the connecting end end. This enables the water pressure gauge to be adjusted to a direction that facilitates observation and data reading when facing fire hydrants with different orientations, ensuring that operators can clearly and directly obtain water pressure readings, thus improving the convenience and efficiency of water pressure testing.

Description

Technical Field

[0001] This utility model relates to the field of water pressure testing technology, specifically a water pressure testing device for fire protection facilities. Background Technology

[0002] Fire protection facilities are a crucial guarantee for building safety, and water pressure, as a key indicator of the effectiveness of a fire protection system, directly affects the efficiency of fire fighting and rescue. Water pressure testing can promptly grasp the pressure status of the fire protection pipeline network, ensuring that facilities such as fire hydrants and sprinkler systems operate normally in the event of a fire.

[0003] Utility model patent CN218305936U discloses a water pressure testing device for building fire hydrants. This device includes a water pressure testing body, with a hose connector fixedly installed at one end. The hose connector has a first valve. A pressure gauge is located on the top of the water pressure testing body, and a water storage bag is located at the bottom of the water pressure testing body. The water storage bag is connected to the inside of the water pressure testing body via a connecting pipe, which has a second valve. An internal snap-fit ​​connector is fixedly installed at the other end of the water pressure testing body. During use, this device can collect and temporarily store the clean water remaining inside the water pressure testing body through the water storage bag, preventing the water from flowing to the ground during disassembly.

[0004] The water pressure testing device for fire hydrants in this building has a fixed pressure gauge installation position and a limited overall rotation adjustment method. When the fire hydrant is facing different directions, it is difficult to flexibly adjust the orientation of the pressure gauge, resulting in uncertainty in the orientation of the pressure gauge after installation. Operators sometimes cannot directly read the pressure gauge reading, which affects the smooth progress of water pressure testing. In view of this, we propose a water pressure testing device for fire protection facilities. Utility Model Content

[0005] The purpose of this invention is to provide a water pressure testing device for fire protection facilities to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A water pressure testing device for fire protection facilities includes a connector for connecting to a fire hydrant. The connector has a connecting end at its tail end, and an end sleeve assembly is connected to the tail end of the connecting end. The end sleeve assembly is axially rotatable on the connecting end. A water pressure gauge is connected to the tail end of the end sleeve assembly. The connecting end and the end sleeve assembly are connected by several connecting components.

[0008] The tail end of the connecting end is convex outward, and several protrusions are provided on the outer peripheral surface of the tail end of the connecting end.

[0009] The end sleeve assembly includes a movable end sleeve that fits onto the head and tail ends of the connection end and a ball valve switch connected to the side end of the movable end sleeve. The bottom outer periphery of the movable end sleeve is provided with a raised edge.

[0010] The connecting assembly includes a pressure plate pressing against the top of the flange and a bolt with a handle.

[0011] Preferably, a positioning ring groove is provided at the outer peripheral edge of the head and tail end faces of the connecting end, and a convex positioning ring is provided at the outer peripheral edge of the head end face, the positioning ring extending into the positioning ring groove;

[0012] In this configuration, the radial movement of the movable end sleeve is restricted by the cooperation between the positioning protrusion and the positioning ring groove, ensuring its stability when rotating at the connecting end.

[0013] Preferably, a groove is provided at the inner edge of the first end face of the protrusion, and a sealing ring is fitted at the bottom of the groove, the sealing ring being sandwiched between the connecting end and the protrusion;

[0014] In this configuration, the sealing ring fills the gap between the connecting end and the raised edge to prevent water leakage and improve the device's sealing performance.

[0015] Preferably, the tail end of the shank bolt is a butterfly-shaped shank, the head end of the shank bolt is a threaded rod, and the threaded rod portion of the shank bolt passes through the pressure plate and is threadedly connected to the boss.

[0016] In this design, the butterfly handle facilitates manual operation, allowing for the tightening and loosening of the bolts with handles, and making it convenient to install and remove the pressure plate, thereby facilitating device maintenance.

[0017] Preferably, the boss has a protruding post at the end face near the protruding edge, the height of the protruding post is the same as the thickness of the protruding edge, and the protruding post has a threaded hole, into which the threaded part of the shank bolt is screwed.

[0018] In this configuration, the protruding post provides a more stable connection point for the shank bolt, enhances the pressure of the pressure plate against the protruding edge, and ensures a secure connection of the end sleeve assembly.

[0019] Preferably, a connecting flange is fixed to the tail end of the movable end sleeve, and the water pressure gauge is installed at the tail end of the connecting flange;

[0020] In this setup, the connecting flange provides a stable mounting base for the water pressure gauge, ensuring a reliable connection between the water pressure gauge and the movable end sleeve.

[0021] Preferably, the first end of the ball valve switch is connected to a discharge pipe, and the other end of the discharge pipe is fixedly connected to the movable end sleeve and communicates with the inside of the movable end sleeve;

[0022] In this setup, the flow of water through the discharge pipe is controlled by a ball valve switch, facilitating water flow within the discharge device and aiding in cleaning and emptying of residual water.

[0023] Preferably, the top surface of the convex edge is provided with an annular groove, and the bottom surface of the tail end of the pressure plate is provided with a downward protruding protrusion, which extends into the groove;

[0024] In this setting, the protrusion engages with the slot, restricting the movement of the pressure plate and further enhancing the reliability of the connection between the pressure plate and the protrusion.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] The water pressure testing device for this fire protection facility allows for axial rotation at the connection end via an end sleeve assembly, with the water pressure gauge mounted at the tail end of the assembly. This eliminates the need for overall adjustment of the connection between the testing device and the fire hydrant when facing fire hydrants with different orientations. Simply rotating the end sleeve assembly allows for flexible adjustment of the water pressure gauge's orientation, ensuring that the gauge is positioned for easy observation and data reading regardless of the fire hydrant's installation location. This guarantees that operators can clearly and directly obtain water pressure readings, improving the convenience and efficiency of water pressure testing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the connector structure in this utility model;

[0029] Figure 3 This is a partial cross-sectional view of the mid-end sleeve assembly of this utility model;

[0030] Figure 4 This is a schematic diagram of the bottom structure of the movable end sleeve in this utility model;

[0031] Figure 5 This is a schematic diagram of the connecting component in this utility model;

[0032] The meanings of the labels in the diagram are as follows:

[0033] 100. Connector; 110. Connecting end; 111. Positioning ring groove; 120. Boss; 121. Boss;

[0034] 200. End sleeve assembly; 210. Movable end sleeve; 211. Raised flange; 2111. Groove; 2112. Sealing ring; 2113. Positioning raised ring; 2114. Slot; 212. Connecting flange; 220. Ball valve switch; 221. Discharge pipe;

[0035] 300. Water pressure gauge;

[0036] 400. Connecting assembly; 410. Pressure plate; 411. Protrusion; 420. Bolt with handle. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0038] Please see Figures 1-5 A water pressure testing device for fire protection facilities includes a connector 100 for connecting to a fire hydrant. The connector 100 is structurally adapted to the fire hydrant interface, ensuring stable installation of the testing device on the fire hydrant and providing a foundation for subsequent water pressure testing. The connector 100 has a connecting end 110 at its tail end, to which an end sleeve assembly 200 is connected. The end sleeve assembly 200 is axially rotatable on the connecting end 110, and a water pressure gauge 300 is connected to its tail end. This structural design allows for flexible adjustment of the orientation of the water pressure gauge 300, enabling it to be rotated to an easily observable position regardless of the fire hydrant's orientation, facilitating data reading by the operator. The connecting end 110 and the end sleeve assembly 200 are connected by several connecting components 400. The connecting components 400 provide a stable connection, ensuring that the end sleeve assembly 200 does not easily detach from the connecting end 110 during rotation, while maintaining the relative positional relationship between the two. The end sleeve assembly 200 includes a movable end sleeve 210 fitted to the tail end of the connecting end 110 and a ball valve switch 220 connected to the side end of the movable end sleeve 210. The movable end sleeve 210 is fitted to the connecting end 110 and is a key component for enabling the rotation function of the end sleeve assembly 200. The ball valve switch 220 controls the flow of water, facilitating the management of water flow within the device before and after testing. The connecting components 400 include a pressure plate 410 pressing against the top of the protruding edge 211 and a shank bolt 420. The pressure plate 410 and the shank bolt 420 cooperate with each other, and the end sleeve assembly 200 is stably connected to the connecting end 110 by bolt tightening, ensuring the stability of the device structure.

[0039] like Figures 2-4As shown, in this invention, the tail end of the connecting end 110 is convex outwards. This shape design provides a spatial basis for the installation and rotation of the movable end sleeve 210. A raised edge 211 is provided on the outer periphery of the bottom end of the movable end sleeve 210. A positioning ring groove 111 is provided on the outer periphery of the tail end face of the connecting end 110. A protruding positioning ring 2113 is provided on the outer periphery of the head end face of the raised edge 211. The positioning ring 2113 extends into the positioning ring groove 111. The two cooperate with each other to play a positioning role, ensuring that the movable end sleeve 210 does not radially deviate when rotating on the connecting end 110, maintaining the stability and accuracy of rotation.

[0040] like Figure 1 , Figure 2 and Figure 5 As shown, specifically, the outer peripheral surface of the connecting end 110 is provided with several protrusions 120. The tail end of the shank bolt 420 is a butterfly-shaped handle, and the head end of the shank bolt 420 is a threaded rod. The threaded rod of the shank bolt 420 passes through the pressure plate 410 and is threadedly connected to the protrusions 120. The protrusions 120 provide a connection point for the shank bolt 420. The butterfly-shaped handle makes it easy for operators to manually tighten or loosen the shank bolt 420, thereby realizing the fastening and disassembly of the pressure plate 410, and facilitating the installation and maintenance of the device. A protruding post 121 is provided on the end face of the boss 120 near the protruding edge 211. The height of the protruding post 121 is the same as the thickness of the protruding edge 211. A threaded hole is provided on the protruding post 121, and the threaded part of the shank bolt 420 is screwed into the threaded hole. The protruding post 121 further enhances the stability of the connection, ensuring that the pressure plate 410 can effectively press against the protruding edge 211 and prevent the end sleeve assembly 200 from loosening.

[0041] like Figure 1 , Figure 3 and Figure 5 As shown, the top surface of the protruding edge 211 is provided with an annular groove 2114, and the bottom surface of the tail end of the pressure plate 410 is provided with a downward protruding protrusion 411. The protrusion 411 extends into the groove 2114. This locking structure makes the connection between the pressure plate 410 and the protruding edge 211 tighter and more stable, restricts the movement of the pressure plate 410 during the fastening process, and ensures the reliability of the connection.

[0042] like Figure 3 and Figure 4As shown, a groove 2111 is provided on the inner edge of the first end face of the protruding edge 211, and a sealing ring 2112 is fitted at the bottom of the groove 2111. The sealing ring 2112 is sandwiched between the connecting end 110 and the protruding edge 211. The sealing ring 2112 is sandwiched between the connecting end 110 and the protruding edge 211, which can effectively prevent water from leaking from the connection between the connecting end 110 and the end sleeve assembly 200, and ensure the sealing of the device during the water pressure test.

[0043] like Figure 1 , Figure 3 and Figure 4 As shown, it is worth noting that a connecting flange 212 is fixed to the tail end of the movable end sleeve 210. The water pressure gauge 300 is installed at the tail end of the connecting flange 212. The connecting flange 212 provides a stable installation base for the water pressure gauge 300, ensuring that the water pressure gauge 300 can accurately measure water pressure.

[0044] like Figure 3 and Figure 4 As shown, it is worth noting that the first end of the ball valve switch 220 is connected to the discharge pipe 221, and the other end of the discharge pipe 221 is fixedly connected to the movable end sleeve 210 and communicates with the inside of the movable end sleeve 210. When it is necessary to discharge the water in the device, the ball valve switch 220 is opened, and the water can be discharged through the discharge pipe 221, which is convenient for operators to clean and maintain the device. At the same time, the residual water in the device can be drained in time after the test is completed.

[0045] In this embodiment, the water pressure testing device for fire protection facilities is used as follows: First, the connector 100 is connected to the fire hydrant to ensure a secure connection, preparing for the water pressure test. Then, based on the orientation of the fire hydrant and the operator's observation needs, the end sleeve assembly 200 is rotated after loosening the shank bolt 420 to adjust the orientation of the water pressure gauge 300 to a position that facilitates observation. Next, the shank bolt 420 on the connector 400 is tightened so that the end sleeve assembly 200 can be tightly connected to the connector 110. The fire hydrant is then opened, allowing water to flow through the connector 100 into the end sleeve assembly 200. At this time, the water pressure gauge 300 displays the water pressure value in real time, which the operator can read directly. Finally, after the test is completed, the fire hydrant is closed, the ball valve switch 220 is opened, and the remaining water in the device is discharged through the drain pipe 221, completing one water pressure test operation.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water pressure testing device for fire protection facilities, comprising a connector (100) for connecting to a fire hydrant, characterized in that: The connector (100) has a connector end (110) at its tail end, and an end sleeve assembly (200) is connected to the tail end of the connector end (110). The end sleeve assembly (200) is axially rotatable on the connector end (110). A water pressure gauge (300) is connected to the tail end of the end sleeve assembly (200). The connector end (110) and the end sleeve assembly (200) are connected by a plurality of connector assemblies (400). The tail end of the connecting end (110) is protruding outward, and a plurality of protrusions (120) are provided on the outer peripheral surface of the tail end of the connecting end (110). The end sleeve assembly (200) includes a movable end sleeve (210) that fits against the tail end of the connecting end (110) and a ball valve switch (220) connected to the side end of the movable end sleeve (210). The movable end sleeve (210) has a raised edge (211) at the outer periphery of its bottom end. The connecting assembly (400) includes a pressure plate (410) pressing against the top of the flange (211) and a shank bolt (420).

2. The water pressure testing device for fire protection facilities according to claim 1, characterized in that: A positioning ring groove (111) is provided at the outer peripheral edge of the tail end face of the connecting end (110), and a positioning protrusion ring (2113) is provided at the outer peripheral edge of the head end face of the protrusion (211), which extends into the positioning ring groove (111).

3. The water pressure testing device for fire protection facilities according to claim 1, characterized in that: A groove (2111) is provided at the inner edge of the first end face of the protruding edge (211), and a sealing ring (2112) is fitted at the bottom of the groove (2111). The sealing ring (2112) is sandwiched between the connecting end (110) and the protruding edge (211).

4. The water pressure testing device for fire protection facilities according to claim 1, characterized in that: The tail end of the shank bolt (420) is a butterfly-shaped shank, and the head end of the shank bolt (420) is a threaded rod. The threaded rod portion of the shank bolt (420) passes through the pressure plate (410) and is threadedly connected to the boss (120).

5. The water pressure testing device for fire protection facilities according to claim 1, characterized in that: The boss (120) has a protruding post (121) at the end face near the protruding edge (211). The height of the protruding post (121) is the same as the thickness of the protruding edge (211). The protruding post (121) has a threaded hole, and the threaded part of the shank bolt (420) is screwed into the threaded hole.

6. The water pressure testing device for fire protection facilities according to claim 1, characterized in that: The end of the movable end sleeve (210) is fixed with a connecting flange (212), and the water pressure gauge (300) is installed at the end of the connecting flange (212).

7. The water pressure testing device for fire protection facilities according to claim 1, characterized in that: The first end of the ball valve switch (220) is connected to a discharge pipe (221), and the other end of the discharge pipe (221) is fixedly connected to the movable end sleeve (210) and communicates with the inside of the movable end sleeve (210).

8. The water pressure testing device for fire protection facilities according to claim 1, characterized in that: The top surface of the protruding edge (211) is provided with an annular groove (2114), and the bottom surface of the tail end of the pressure plate (410) is provided with a downward protruding bump (411), which extends into the groove (2114).

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