Pressure measuring connector of fire hydrant

Abstract

The utility model relates to the technical field of fire fighting equipment, and discloses a fire hydrant pressure measuring joint which comprises a connecting pipe, an external pipe and a pressure measuring meter, the right end of the connecting pipe is fixedly connected with a hydrant head, the front side and the rear side of the outer wall of the hydrant head are fixedly connected with plug connectors, the inner sides of the plug connectors are provided with clamping grooves, and the clamping grooves are fixedly connected with the pressure measuring meter. Fixing blocks are fixedly connected to the front side and the rear side of the outer wall of the external connecting pipe, sliding cavities are formed in the left side and the right side of the interior of each fixing block, clamping blocks are slidably connected to the left side and the right side of each sliding cavity, mounting plates are fixedly connected to the adjacent sides of the two clamping blocks, and springs are fixedly connected to the sides, away from each other, of the two mounting plates. According to the connecting pipe fixing device, the plug connector and the fixing block are connected in an inserted mode, positioning installation is completed, the reinforcing bolt is rotated to move towards the inner side of the fixing block, and therefore the clamping block in the sliding cavity is squeezed, the clamping block is rapidly clamped into the clamping groove, the connecting pipe is rapidly installed and fixed, and the installation efficiency and the sealing performance of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a fire hydrant pressure testing connector. Background Technology

[0002] To ensure the normal operation of fire protection facilities, it is necessary to regularly inspect fire hydrants. During the inspection process, the fire hydrant pressure tester is an indispensable tool used to measure the water pressure of the fire hydrant. The device mainly consists of a housing assembly, a connection assembly, and a test assembly, and has significant advantages such as easy operation, accurate test results, and wide applicability.

[0003] A search revealed Chinese patent publication number CN222195821U, which discloses a fire hydrant pressure testing connector. The connector includes a hydrant head and a buffer plate fixedly connected to the inner wall of the hydrant head. A connecting pipe is fixedly connected to one side of the hydrant head, and a pressure testing component is mounted on the connecting pipe. A water outlet pipe is fixedly connected to the side of the connecting pipe away from the pressure testing component. An exhaust pipe is located at the bottom of the connecting pipe, and the bottom of the water outlet pipe is connected to the hydrant head via a guide pipe. The buffer plate cooperates with the guide pipe. This invention, on the one hand, utilizes the buffer plate to reduce the impact of water flow, reduce the internal pressure of the hydrant head, and extend the service life of the pressure gauge. On the other hand, it allows for the direct discharge of air from inside the hydrant head, thereby preventing excessively high or low pressure readings, improving measurement accuracy and reliability, and ensuring safety during use. However, in practical use, the aforementioned device often uses bolts for connection to ensure a tight seal, but the large number of bolts makes installation time-consuming and labor-intensive. Therefore, this fire hydrant pressure testing connector is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fire hydrant pressure testing connector, which aims to improve the problem that most connectors in the prior art are connected by multiple bolts, resulting in time-consuming and labor-intensive installation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fire hydrant pressure testing connector, comprising a connecting pipe, an outer connecting pipe, and a pressure gauge, wherein a hydrant head is fixedly connected to the right end of the connecting pipe, and a plug is fixedly connected to the front and rear sides of the outer wall of the hydrant head, and a slot is provided on the inner side of the plug. A fixing block is fixedly connected to the front and rear sides of the outer wall of the outer connecting pipe, and a sliding cavity is provided on the left and right sides of the inner side of the fixing block. A locking block is slidably connected to the left and right sides of the sliding cavity. An mounting plate is fixedly connected to the adjacent side of the two locking blocks, and a spring is fixedly connected to the opposite side of the two mounting plates. A reinforcing bolt is threadedly connected to the opposite side of the two fixing blocks, and a buffer mechanism is provided on the inner side of the connecting pipe.

[0006] Through the above technical solution: when the connecting pipe is inserted into the outer pipe, the connector is connected to the fixing block, and the bottom end is pressed downward by rotating the reinforcing bolt, thereby pushing the locking block in the sliding cavity to unfold to the left and right, so as to quickly lock into the slot, completing the rapid connection of the device, ensuring the sealing between them, and further improving the accuracy of pressure measurement.

[0007] As a further description of the above technical solution:

[0008] The buffer mechanism includes an arc-shaped groove on the right side of the plug head, a water flow hole on the left side of the plug head, a cavity inside the connecting pipe, and a spiral flow channel plate fixedly connected to the inner side of the cavity.

[0009] Through the above technical solution, the arc-shaped groove on the thimble head can offset the incoming water impact and allow it to quickly enter the cavity through the water flow hole. The spiral flow channel plate inside the cavity provides secondary buffering, gradually reducing the impact of the water and improving the service life of the pressure gauge.

[0010] As a further description of the above technical solution:

[0011] The right side of the plug head is provided with a mounting groove, and a sealing ring is fixedly connected to the inner side of the mounting groove.

[0012] Through the above technical solution, the sealing ring can improve the sealing between the plug head and the outer pipe, and prevent the internal pressure from leaking out.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the connecting pipe is fixedly connected with reinforcing plates on all four sides, and the right side of multiple reinforcing plates is fixedly connected to the left side of the plug head.

[0015] The above technical solution involves using a reinforcing plate to strengthen the connection between the pipe and the plug, ensuring the overall strength of the device.

[0016] As a further description of the above technical solution:

[0017] An installation cylinder is fixedly connected to the left end of the outer wall of the connecting pipe, and a connecting end is connected to the top of the outer wall of the installation cylinder.

[0018] The above technical solution involves setting the mounting cylinder in the middle of the connecting pipe, and providing an installation connection port for the pressure gauge through the mounting cylinder and the connecting end.

[0019] As a further description of the above technical solution:

[0020] The inner side of the connecting end is threaded with a sensing end, the bottom of the pressure gauge is fixedly connected to the top of the sensing end, and the rear side of the outer wall of the connecting pipe is connected to an exhaust valve.

[0021] The above technical solution involves using a sensing end to detect internal water pressure, which is then displayed on a pressure gauge.

[0022] As a further description of the above technical solution:

[0023] The top of the connecting end is provided with a second mounting groove, and a second sealing ring is fixedly connected to the inner side of the second mounting groove.

[0024] The above technical solution involves installing a second sealing ring on the connection end, which improves the sealing performance between the pressure gauge and the connection end.

[0025] As a further description of the above technical solution:

[0026] The left end of the connecting pipe is connected to a water outlet pipe, and a valve is installed on the outer wall of the water outlet pipe. An anti-slip sleeve is fixedly connected to the outer wall of the valve.

[0027] The above technical solution allows for the discharge of pressure-testing water through an outlet pipe, facilitating subsequent use.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, when the plug head and the outer pipe are installed and connected, the plug and the fixing block are plugged into each other to complete the positioning installation, and the rotating reinforcing bolt moves to the inside of the fixing block, thereby squeezing the locking block inside the sliding cavity and making it quickly lock into the slot, thus completing the rapid installation and fixing of the connecting pipe, improving the installation efficiency and the sealing performance of the device.

[0030] 2. In this utility model, when water flows into the nut head through the outer pipe, the impact of the incoming water is offset by the arc groove, and the water quickly enters the cavity through the water flow hole. At this time, the water flow is guided by the spiral flow channel plate to achieve secondary buffering, gradually reducing the impact of water and improving the service life of the pressure gauge. Attached Figure Description

[0031] Figure 1 This is a perspective view of a fire hydrant pressure testing connector proposed in this utility model;

[0032] Figure 2 This is an exploded view of the sealing element of a fire hydrant pressure testing connector proposed in this utility model;

[0033] Figure 3 This is a cross-sectional view of the locking block of a fire hydrant pressure testing connector proposed in this utility model;

[0034] Figure 4 This is a cross-sectional view of a buffer mechanism for a fire hydrant pressure testing connector proposed in this utility model;

[0035] Figure 5 This is an exploded view of the pressure gauge of a fire hydrant pressure testing connector proposed in this utility model.

[0036] Legend:

[0037] 1. Connecting pipe; 2. Buffer mechanism; 201. Arc groove; 202. Water flow hole; 203. Cavity; 204. Spiral flow channel plate; 3. Bolt head; 4. External pipe; 5. Connector; 6. Slot; 7. Fixing block; 8. Sliding cavity; 9. Locking block; 10. Mounting plate; 11. Spring; 12. Reinforcing bolt; 13. Mounting slot one; 14. Sealing ring one; 15. Reinforcing plate; 16. Mounting cylinder; 17. Connecting end; 18. Sensing end; 19. Pressure gauge; 20. Mounting slot two; 21. Sealing ring two; 22. Exhaust valve; 23. Water outlet pipe; 24. Valve; 25. Anti-slip sleeve. Detailed Implementation

[0038] 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.

[0039] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a fire hydrant pressure testing connector, including a connecting pipe 1, an outer pipe 4, and a pressure gauge 19. A hydrant head 3 is fixedly connected to the right end of the connecting pipe 1. The connecting pipe 1 and the hydrant head 3 are integrally formed, effectively improving the overall strength of the device. A plug-in 5 is fixedly connected to the front and rear sides of the outer wall of the hydrant head 3. A slot 6 is provided on the inner side of the plug-in 5. A fixing block 7 is fixedly connected to the front and rear sides of the outer wall of the outer pipe 4. The plug-in 5 and the hydrant head 3 are also integrally formed. When the hydrant head 3 and the outer pipe 4 are connected by installation, the plug-in 5 can be inserted into the fixing block 7 to complete the initial positioning installation. Sliding cavities 8 are provided on the left and right sides of the interior of the fixing block 7. Locking blocks 9 are slidably connected to the left and right sides of the sliding cavities 8. Mounting plates 10 are fixedly connected to adjacent sides of the two locking blocks 9. Springs 11 are fixedly connected to the opposite sides of the two mounting plates 10. The fixed block 7 is threaded with a reinforcing bolt 12 on the opposite side. The locking block 9 is installed inside the sliding cavity 8. By rotating the reinforcing bolt 12, it moves inward, thereby squeezing the locking blocks 9 on both sides and making them unfold to the sides, so as to quickly lock into the locking groove 6, thus completing the quick installation and fixing of the connecting pipe 1. The inner side of the connecting pipe 1 is provided with a buffer mechanism 2. The right side of the plug head 3 is provided with an installation groove 13. The inner side of the installation groove 13 is fixedly connected with a sealing ring 14. With the sealing ring 14 between the plug head 3 and the outer pipe 4, the sealing performance and pressure measurement accuracy can be further improved. The left end of the connecting pipe 1 is connected to a water outlet pipe 23. A valve 24 is installed on the outer wall of the water outlet pipe 23. An anti-slip sleeve 25 is fixedly connected to the outer wall of the valve 24. Reinforcing plates 15 are fixedly connected to all four sides of the outer wall of the connecting pipe 1. The right side of multiple reinforcing plates 15 is fixedly connected to the left side of the plug head 3.

[0040] Specifically, a plug head 3 is fixed to the right end of the connecting pipe 1, making the connecting pipe 1 and the plug head 3 an integral structure, significantly improving the structural strength and durability of the entire device. Insertion pieces 5 are fixed to the front and rear sides of the outer wall of the plug head 3. These insertion pieces 5 have slots 6 on their inner sides, facilitating subsequent installation and fixing. Fixing blocks 7 are fixed to the front and rear sides of the outer wall of the outer pipe 4. When installing and connecting the plug head 3 and the outer pipe 4, the insertion pieces 5 can interlock with the fixing blocks 7 to achieve initial positioning and installation. Sliding cavities 8 are formed on the left and right sides of the interior of the fixing blocks 7. Locking blocks 9 are slidably connected to the left and right sides of the sliding cavities 8. Mounting plates 10 are fixed to adjacent sides of these locking blocks 9, with the mounting plates 10 being spaced apart. Springs 11 are fixed on both sides. The presence of springs 11 provides the necessary elastic force for the pop-out and retraction of the locking blocks 9. By rotating the reinforcing bolt 12, it moves inward, thereby squeezing the locking blocks 9 on both sides and making them unfold to the sides, so as to quickly engage into the locking groove 6, completing the quick installation and fixation of the connecting pipe 1. The right side of the plug head 3 is provided with an installation groove 13. A sealing ring 14 is fixed on the inner side of the installation groove 13. The sealing ring 14 between the plug head 3 and the outer pipe 4 can further improve the sealing performance and pressure measurement accuracy. The left end of the connecting pipe 1 is connected to the water outlet pipe 23. A valve 24 is installed on the outer wall of the water outlet pipe 23, which not only facilitates operation but also enhances the safety during use.

[0041] Reference Figure 4 The buffer mechanism 2 includes an arc groove 201, which is located on the right side of the plug head 3. The arc groove 201 can offset the incoming water impact. A water flow hole 202 is provided on the left side of the plug head 3. A cavity 203 is provided inside the connecting pipe 1, allowing the water to quickly enter the cavity 203 through the water flow hole 202. A spiral flow channel plate 204 is fixedly connected to the inner side of the cavity 203. The spiral flow channel plate 204 inside the cavity 203 guides the water flow for secondary buffering, gradually reducing the impact of the water and improving the service life of the pressure gauge 19.

[0042] Specifically, the arc-shaped groove 201 is located on the right side of the plug head 3. Its main function is to effectively counteract and absorb the impact of water rushing towards it, thereby protecting the entire device from damage caused by severe impact. At the same time, a water flow hole 202 is designed on the left side of the plug head 3. The function of this water flow hole 202 is to allow water to flow smoothly. The internal structure of the connecting pipe 1 has also been designed, with a cavity 203. The existence of this cavity 203 allows water to quickly pass through the water flow hole 202 and directly enter the cavity 203. In order to further optimize the flow path of the water and reduce the impact force, a spiral flow channel plate 204 is fixed inside the cavity 203. The addition of the spiral flow channel plate 204 allows the water to undergo secondary buffering within the cavity 203. By guiding the water to flow along the spiral path, the impact force brought by the water flow is gradually reduced. This design not only improves the efficiency of water flow but also significantly extends the service life of the pressure gauge 19, ensuring the stability and reliability of the entire system.

[0043] Reference Figure 1 , Figure 2 and Figure 5 An installation cylinder 16 is fixedly connected to the left end of the outer wall of the connecting pipe 1. A connecting end 17 is connected to the top of the outer wall of the installation cylinder 16. A sensing end 18 is threadedly connected to the inner side of the connecting end 17. The bottom of the pressure gauge 19 is fixedly connected to the top of the sensing end 18. An exhaust valve 22 is connected to the rear side of the outer wall of the connecting pipe 1. An installation groove 20 is opened at the top of the connecting end 17. A sealing ring 21 is fixedly connected to the inner side of the installation groove 20.

[0044] Specifically, an exhaust valve 22 is connected to the rear side of the outer wall of the connecting pipe 1 to release internal pressure when needed. The top of the connecting end 17 is provided with a mounting groove 20, and a sealing ring 21 is fixedly connected to the inner side of the mounting groove 20 to ensure the tightness and sealing of the connection.

[0045] Working principle: First, when the plug head 3 and the outer pipe 4 are connected by installation, the plug 5 can be plugged into the fixing block 7 to complete the initial positioning installation. At this time, by rotating the reinforcing bolt 12 to move inward, the locking block 9 inside the sliding cavity 8 is squeezed and unfolded to both sides, so that it can quickly lock into the slot 6, completing the quick installation and fixing of the connecting pipe 1. With the sealing ring 14 between the plug head 3 and the outer pipe 4, the sealing performance and pressure measurement accuracy can be further improved.

[0046] Furthermore, when water enters the throttle head 3 through the outer pipe 4, the arc groove 201 on the right side of the throttle head 3 can offset the incoming water impact and quickly enter the cavity 203 through the water flow hole 202. The spiral flow channel plate 204 inside the cavity 203 guides the water flow for secondary buffering, gradually reducing the impact of the water and improving the service life of the pressure gauge 19.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydrant pressure tap comprising a connecting pipe (1), an external pipe (4) and a pressure gauge (19), characterized in that: The right end of the connecting pipe (1) is fixedly connected with a plug head (3), the front and rear sides of the outer wall of the plug head (3) are fixedly connected with plug-in parts (5), the inner side of the plug-in parts (5) is provided with clamping grooves (6), the front and rear sides of the outer wall of the outer connecting pipe (4) are fixedly connected with fixed blocks (7), the inner sides of the fixed blocks (7) are provided with sliding cavities (8) on the left and right sides, the sliding cavities (8) are slidably connected with clamping blocks (9), the adjacent sides of the two clamping blocks (9) are fixedly connected with mounting plates (10), the sides away from each other of the two mounting plates (10) are fixedly connected with springs (11), the sides away from each other of the two fixed blocks (7) are threadedly connected with reinforcing bolts (12), and the inner side of the connecting pipe (1) is provided with a buffer mechanism (2).

2. A fire hydrant pressure tap according to claim 1, wherein: The buffer mechanism (2) comprises an arc surface groove (201), the arc surface groove (201) is provided on the right side of the plug head (3), the left side of the plug head (3) is provided with a water flow hole (202), the inner side of the connecting pipe (1) is provided with a cavity (203), and the inner side of the cavity (203) is fixedly connected with a spiral flow channel plate (204).

3. A fire hydrant pressure tap according to claim 1, wherein: The right side of the plug head (3) is provided with a mounting groove (13), and the inner side of the mounting groove (13) is fixedly connected with a sealing ring (14).

4. A fire hydrant pressure tap according to claim 1, wherein: The outer wall of the connecting pipe (1) is fixedly connected with reinforcing plates (15) on the periphery, and the right sides of the reinforcing plates (15) are fixedly connected to the left side of the plug head (3).

5. A fire hydrant pressure tap according to claim 1, wherein: The outer wall of the connecting pipe (1) is fixedly connected with a mounting cylinder (16) on the left end, and the outer wall of the mounting cylinder (16) is communicated with a connecting end (17) on the top.

6. A fire hydrant pressure tap according to claim 5, wherein: The inner side of the connecting end (17) is threadedly connected with a sensing end (18), the bottom of the pressure gauge (19) is fixedly connected to the top end of the sensing end (18), and the rear side of the outer wall of the connecting pipe (1) is communicated with an exhaust valve (22).

7. A fire hydrant pressure tap according to claim 5, wherein: The top end of the connecting end (17) is provided with a mounting groove (20), and the inner side of the mounting groove (20) is fixedly connected with a sealing ring (21).

8. A fire hydrant pressure tap according to claim 1, wherein: The left end of the connecting pipe (1) is communicated with a water outlet pipe (23), the outer wall of the water outlet pipe (23) is provided with a valve (24), and the outer wall of the valve (24) is fixedly connected with an anti-skid sleeve (25).

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