Highly sealed water leakage preventing outdoor fire hydrant

Abstract

The utility model discloses a kind of high sealing water leakage prevention outdoor fire hydrant, including fire hydrant body, the both sides of fire hydrant body are connected with fixed connection pipe, the outside of connection pipe is fixedly connected with fixed ring, the top of fixed ring is fixedly connected with limit block, thread groove is set in the inside of limit block, one end of connection pipe is equipped with plug, the inside of plug is equipped with clamping groove, plug is sleeved in the outside of connection pipe by clamping groove, the top of plug is fixedly connected with plug-in block, and plug-in block is inserted with the plug-in groove of limit block top, plug-in block is inserted with screw rod, and screw rod is connected with thread groove, plug is movably connected with threaded rod, the utility model not only can make the sealing effect of device more long-lasting durable, but also can be used in cooperation with sealing strip and groove, make protective shell and fire hydrant body more closely connected.

Description

Technical Field

[0001] This utility model relates to the field of fire hydrant technology, and in particular to a high-sealing, leak-proof outdoor fire hydrant. Background Technology

[0002] Outdoor fire hydrants are water supply facilities installed on the fire water supply network outside buildings. Their main function is to provide water for fire trucks and directly connect water hoses and nozzles to extinguish fires. They are important facilities for fighting fires.

[0003] Currently, most outdoor fire hydrants on the market are designed and manufactured with a single sealing ring directly installed on the plug for sealing. After long-term use, the sealing ring is prone to weathering due to factors such as wind and rain erosion and temperature changes, leading to water leakage and affecting the use of the device. In order to better address the above problems, promote the development of industry technology, and improve core competitiveness, this application proposes a new composition structure that is different from the existing technology. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a highly sealed and leak-proof outdoor fire hydrant.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-sealing, leak-proof outdoor fire hydrant includes a hydrant body, with connecting pipes fixedly connected to both sides of the hydrant body. A fixing ring is fixedly connected to the outer side of the connecting pipe, and a limiting block is fixedly connected to the top of the fixing ring. The limiting block has a threaded groove inside. One end of the connecting pipe is provided with a plug, and a slot is provided on the inner side of the plug. The plug is sleeved on the outer side of the connecting pipe through the slot. An insert is fixedly connected to the top of the plug, and the insert is inserted into a slot on the top of the limiting block. A threaded rod is inserted into the insert and is threadedly connected to the threaded groove. A threaded rod is movably connected to the plug, and a piston is movably connected to one end of the threaded rod. The piston is slidably connected to the connecting pipe. A sealing groove is provided on the outer side of the piston, and a sealing ring is fitted inside the sealing groove and contacts the connecting pipe.

[0006] As a further improvement of this utility model, a second connecting ring is fixedly connected to the top of the fire hydrant body.

[0007] As a further embodiment of this utility model, the top of the fire hydrant body is provided with a protective shell, and the bottom of the protective shell is fixedly connected with a first connecting ring, and the first connecting ring and the second connecting ring are fixed together by bolts.

[0008] As a further embodiment of this utility model, a sealing strip is fixedly connected to the bottom of the first connecting ring, and a groove is provided on the top of the second connecting ring, with the sealing strip placed in the groove.

[0009] As a further embodiment of this utility model, one end of the threaded rod passes through the plug and is movably connected to a nut, and the nut is in contact with the plug by compression.

[0010] As a further improvement of this utility model, an installation ring is fixedly connected to the bottom end of the fire hydrant body.

[0011] As a further embodiment of this invention, one end of the threaded rod passes through the plug and is fixedly connected to a knob.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model, by setting a movable sealing piston inside the connecting pipe, allows the piston and sealing ring to be located deeper inside the connecting pipe, reducing corrosion caused by wind, rain and sunlight, making the sealing effect of the device more durable and long-lasting, and improving the sealing effect of the device.

[0013] 2. In this utility model, the protective shell can protect the top opening of the fire hydrant body. Through the cooperation of the sealing strip and the groove, the connection between the protective shell and the fire hydrant body is made tighter, thereby making the protective shell more effective in protecting the fire hydrant body and further improving the sealing effect of the device.

[0014] 3. This utility model facilitates the positioning and installation of the piston by using the slots on the insert block and the limiting block, reducing the docking time and making it more convenient to use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the front side of a high-sealing, leak-proof outdoor fire hydrant proposed in this utility model; Figure 2 This is a partial cross-sectional view of a high-sealing, leak-proof outdoor fire hydrant proposed in this utility model. Figure 3 This is a cross-sectional view of the frame structure of a high-sealing, leak-proof outdoor fire hydrant proposed in this utility model. Figure 4 This is a partially enlarged structural diagram of a high-sealing, leak-proof outdoor fire hydrant proposed in this utility model.

[0016] In the diagram: 1. Protective shell; 2. First connecting ring; 3. Second connecting ring; 4. Fire hydrant body; 5. Mounting ring; 6. Sealing strip; 7. Groove; 8. Connecting pipe; 9. Threaded rod; 10. Limiting block; 11. Fixing ring; 12. Insert block; 13. Nut; 14. Threaded rod; 15. Plug; 16. Piston; 17. Sealing groove; 18. Sealing ring; 19. Slot. Detailed Implementation

[0017] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Therefore, all other embodiments of this application described herein, and all embodiments obtained by those skilled in the art without creative effort based on the embodiments in this application, should fall within the scope of protection of this application.

[0018] Reference Figures 1-4 A high-sealing, leak-proof outdoor fire hydrant includes a fire hydrant body 4, with connecting pipes 8 fixedly connected to both sides of the fire hydrant body 4. A fixing ring 11 is fixed to the outside of the connecting pipe 8 by bolts. A limiting block 10 is welded to the top of the fixing ring 11. A threaded groove is opened inside the limiting block 10. A plug 15 is provided at one end of the connecting pipe 8. A slot 19 is opened on the inner side of the plug 15. The plug 15 is sleeved on the outside of the connecting pipe 8 through the slot 19. A sealing gasket can be added inside the slot 19 to achieve further sealing between the connecting pipe 8 and the plug 15. A plug 12 is welded to the top of the plug 15, and the plug 12 is inserted into the slot on the top of the limit block 10. The use of the plug 12 and the slot on the limit block 10 makes it easy for the staff to position and install the piston 16. A lead screw 9 is inserted into the insert block 12 and is threaded into the threaded groove. A trapezoidal threaded rod 14 is threaded into the plug 15. A piston 16 is rotatably connected to one end of the threaded rod 14. The piston 16 is inserted into the connecting pipe 8, and then the plug 15 is continuously pushed until the plug 15 is sleeved on one end of the connecting pipe 8 through the slot 19, and the protrusion at one end of the insert block 12 is inserted into the slot at the top of the limiting block 10. Then, the lead screw 9 on the insert block 12 is aligned with the threaded hole on the limiting block 10, and the lead screw 9 is rotated to insert into the threaded hole, thereby fixing the plug 15 and the connecting pipe 8. The piston 16 is slidably connected to the connecting pipe 8. The tolerance between the outer diameter of the piston 16 and the inner diameter of the connecting pipe 8 is H8 / f7, and the sliding friction is ≤0.1N, ensuring smooth movement and no leakage.

[0019] In particular, a sealing groove 17 is provided on the outer side of the piston 16. By rotating the threaded rod 14, the piston 16 is moved inward along the connecting pipe 8 to the required position, so that the piston 16 can block the connecting pipe 8 at a deeper position. A sealing ring 18 is attached inside the sealing groove 17. The sealing ring 18 is made of fluororubber, which can be replaced by the operator. The sealing ring 18 is in contact with the connecting pipe 8, which can make the connection between the piston 16 and the inner wall of the connecting pipe 8 tighter, thus making the sealing effect more excellent. One end of the threaded rod 14 passes through the plug 15 and is threadedly connected to a nut 13. The nut 13 is in contact with the plug 15. The nut 13 can further restrict the position of the threaded rod 14 to prevent the threaded rod 14 from reversing and affecting the use of the device.

[0020] It should be noted that a second connecting ring 3 is welded to the top of the fire hydrant body 4, and a protective shell 1 is provided at the top of the fire hydrant body 4. The protective shell 1 can protect the opening at the top of the fire hydrant body 4. A first connecting ring 2 is welded to the bottom of the protective shell 1, and the first connecting ring 2 and the second connecting ring 3 are fixed together by bolts. A sealing strip 6 is bonded to the bottom of the first connecting ring 2. The sealing strip 6 is made of closed-cell foamed silicone. A groove 7 is provided on the top of the second connecting ring 3, and the sealing strip 6 is placed in the groove 7. Through the cooperation of the sealing strip 6 and the groove 7, the connection between the protective shell 1 and the fire hydrant body 4 is made tighter, further improving the sealing effect. An installation ring 5 is welded to the bottom of the fire hydrant body 4 to facilitate the overall fixation of the device. One end of the threaded rod 14 passes through the plug 15 and is welded with a knob to facilitate the rotation of the threaded rod 14 by the operator.

[0021] Working principle: In use, first insert the piston 16 into the connecting pipe 8, then continuously push the plug 15 until the plug 15 is sleeved on one end of the connecting pipe 8 through the slot 19, and insert the protrusion at one end of the insert block 12 into the slot at the top of the limiting block 10. Then, align the screw 9 on the insert block 12 with the threaded hole on the limiting block 10, and rotate the screw 9 to insert it into the threaded hole, thereby fixing the plug 15 and the connecting pipe 8. When it is necessary to push the piston 16 deeper into the connecting pipe 8, rotate the threaded rod 14 to move the piston 16 inward along the connecting pipe 8 to the required position, so that the piston 16 can block the connecting pipe 8 at a deeper position. The sealing ring 18 can make the connection between the piston 16 and the inner wall of the connecting pipe 8 tighter, thereby making the device more leak-proof. The protective shell 1 can protect the top opening of the fire hydrant body 4. Through the cooperation of the sealing strip 6 and the groove 7, the connection between the protective shell 1 and the fire hydrant body 4 is tighter, further improving the sealing effect.

[0022] This utility model has been described through the above embodiments. Those skilled in the art will understand that this utility model is not limited to the above embodiments. Many more modifications can be made based on the teachings of this utility model, and all such modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-sealing, leak-proof outdoor fire hydrant, comprising a fire hydrant body (4), characterized in that, Both sides of the fire hydrant body (4) are connected and fixed with connecting pipes (8). A fixing ring (11) is fixedly connected to the outside of the connecting pipe (8). A limiting block (10) is fixedly connected to the top of the fixing ring (11). A threaded groove is opened inside the limiting block (10). A plug (15) is provided at one end of the connecting pipe (8). A slot (19) is opened on the inner side of the plug (15). The plug (15) is sleeved on the outside of the connecting pipe (8) through the slot (19). A plug block (12) is fixedly connected to the top of the plug (15). The insert (12) is inserted into the slot at the top of the limiting block (10). A screw (9) is inserted into the insert (12) and the screw (9) is threaded into the threaded groove. A threaded rod (14) is movably connected to the plug (15). A piston (16) is movably connected to one end of the threaded rod (14). The piston (16) is slidably connected to the connecting pipe (8). A sealing groove (17) is opened on the outside of the piston (16). A sealing ring (18) is fitted in the sealing groove (17) and the sealing ring (18) is in contact with the connecting pipe (8).

2. The high-sealing, leak-proof outdoor fire hydrant according to claim 1, characterized in that, The top end of the fire hydrant body (4) is fixedly connected to a second connecting ring (3).

3. The high-sealing, leak-proof outdoor fire hydrant according to claim 2, characterized in that, The top of the fire hydrant body (4) is provided with a protective shell (1), and the bottom of the protective shell (1) is fixedly connected with a first connecting ring (2), and the first connecting ring (2) and the second connecting ring (3) are fixed together by bolts.

4. The high-sealing, leak-proof outdoor fire hydrant according to claim 3, characterized in that, The bottom of the first connecting ring (2) is fixedly connected with a sealing strip (6), and the top of the second connecting ring (3) is provided with a groove (7), and the sealing strip (6) is placed in the groove (7).

5. The high-sealing, leak-proof outdoor fire hydrant according to claim 1, characterized in that, One end of the threaded rod (14) passes through the plug (15) and is movably connected to a nut (13), and the nut (13) and the plug (15) are in contact by compression.

6. The high-sealing, leak-proof outdoor fire hydrant according to claim 1, characterized in that, The bottom end of the fire hydrant body (4) is fixedly connected to an installation ring (5).

7. The high-sealing, leak-proof outdoor fire hydrant according to claim 1, characterized in that, One end of the threaded rod (14) passes through the plug (15) and is fixedly connected to a knob.

Images