Highly reliable fire hydrant convenient to overhaul

Abstract

This utility model discloses a highly reliable and easy-to-maintain fire hydrant, comprising an underground pipe, a first connecting pipe, a second connecting pipe, and a top cover. A first lower annular block is fixedly connected to the top of the first connecting pipe, a first upper annular block is fixedly connected to the bottom of the second connecting pipe, and a second lower annular block is fixedly connected to the top of the second connecting pipe. The tops of both the first and second lower annular blocks are provided with slots. The bottom of the top cover is fixedly connected to the second upper annular block. This utility model facilitates the disassembly and installation of the second connecting pipe and the top cover by engaging the first and second upper annular blocks with the slots of the first and second lower annular blocks, respectively, and by engaging the locking post with the through hole. This achieves segmented connection; when one segment is damaged, only the damaged part needs to be replaced, without replacing the entire hydrant, thus reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of fire hydrant technology, and in particular to a highly reliable and easy-to-maintain fire hydrant. Background Technology

[0002] Fire hydrants are fixed fire-fighting facilities mainly used to control combustibles, isolate oxidizers, and eliminate ignition sources to prevent the spread of fire. Based on their installation location and usage, they are mainly divided into two categories: indoor fire hydrants and outdoor fire hydrants.

[0003] Currently, the integral sealing structure of existing fire hydrants cannot be segmented for connection. Therefore, damage to any part of the hydrant usually requires complete disassembly and replacement, which is labor-intensive and leads to major replacements for minor issues. To better facilitate the maintenance of fire hydrants, promote technological progress in the industry, and enhance core technological competitiveness, this application proposes a new implementation scheme for a highly reliable and easily maintainable fire hydrant, distinct from existing technologies. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing fire hydrants cannot achieve segmented connection, and to propose a highly reliable and easy-to-maintain fire hydrant.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A highly reliable and easy-to-maintain fire hydrant includes an underground pipe, a first connecting pipe, a second connecting pipe, and a top cover. A first lower annular block is fixedly connected to the top of the first connecting pipe, a first upper annular block is fixedly connected to the bottom of the second connecting pipe, and a second lower annular block is fixedly connected to the top of the second connecting pipe. The top of both the first and second lower annular blocks has a slot. The bottom of the top cover is fixedly connected to the second upper annular block. The first and second upper annular blocks respectively engage with the slots of the first and second lower annular blocks. The inner circumference of each slot has multiple mounting grooves, and one side of the inner wall of each mounting groove has an L-shaped groove and a through hole. Hollow tubes are fixedly connected to the outer circumference of both the first and second upper annular blocks. A locking post is slidably inserted into one end of each hollow tube. The locking post slides along the L-shaped groove and engages with the through hole. A spring is fixedly connected to one end of the locking post, and the other end of the spring is fixedly connected to the inner wall of the hollow tube.

[0007] Furthermore, flanges are fixedly connected to both the top end of the underground pipe and the bottom end of the first connecting pipe, and the two flanges are fixed together by bolts.

[0008] Furthermore, the second connecting pipe has multiple hose connection ports on its circumference.

[0009] Furthermore, multiple connecting rods are fixedly connected to the outer circumference of both the first and second lower annular blocks, and slip rings are slidably sleeved on the outer walls of the connecting rods.

[0010] Furthermore, multiple push rods are slidably inserted into the outer circumference of both the first and second lower annular blocks. One side of the slip ring is fixedly connected to one end of the push rod, and the other end of the push rod is in contact with the locking post.

[0011] Furthermore, the underground pipe has an L-shaped structure.

[0012] Furthermore, both the outer circumferential wall of the underground pipe and the outer circumferential wall of the first connecting pipe are fixedly connected with reinforcing ribs, and one side of the reinforcing ribs is connected to the flange.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The first upper annular block and the second upper annular block are respectively engaged with the first lower annular block and the second lower annular block through their slots, and the locking post is engaged with the through hole, which facilitates the disassembly and installation of the second connecting pipe and the top cover, thereby realizing segmented connection. When one segment is damaged, only the damaged part needs to be replaced, without replacing the whole, thus reducing costs.

[0015] 2. By pushing the push rod, the locking pin moves into the hollow tube, thus separating the locking pin from the through hole, making the disassembly of the second connecting pipe and the top cover simpler, more convenient and faster. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a highly reliable and easy-to-maintain fire hydrant proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the exploded structure of a highly reliable and easy-to-maintain fire hydrant proposed in this utility model.

[0018] Figure 3 This is a partially enlarged structural diagram of a highly reliable and easily maintained fire hydrant proposed in this utility model.

[0019] Figure 4 This is a partial exploded structural diagram of a highly reliable and easily maintained fire hydrant proposed in this utility model.

[0020] Figure 5 This is an enlarged structural diagram of part A of a highly reliable and easy-to-maintain fire hydrant proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the lower annular block structure of a fire hydrant that is highly reliable and easy to maintain, as proposed in this utility model.

[0022] In the diagram: 1. Underground pipe; 2. Flange; 3. First connecting pipe; 4. First lower annular block; 401. Second lower annular block; 5. Second connecting pipe; 6. First upper annular block; 601. Second upper annular block; 7. Water hose connection port; 8. Top cover; 9. Slot; 10. Mounting slot; 11. L-shaped slot; 12. Through hole; 13. Connecting rod; 14. Slip ring; 15. Top rod; 16. Hollow pipe; 17. Locking post; 18. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-6 A highly reliable and easy-to-maintain fire hydrant includes an underground pipe 1, a first connecting pipe 3, a second connecting pipe 5, and a top cover 8. A first lower annular block 4 is welded to the top of the first connecting pipe 3, a first upper annular block 6 is welded to the bottom of the second connecting pipe 5, and a second lower annular block 401 is welded to the top of the second connecting pipe 5. The first lower annular block 4 and the second lower annular block 401 are made of 304 stainless steel.

[0025] The top of the first lower annular block 4 and the top of the second lower annular block 401 are both provided with slots 9, and EPDM sealing rings are embedded in the slots 9. The bottom of the top cover 8 is welded with a second upper annular block 601. The first upper annular block 6 and the second upper annular block 601 are respectively engaged with the slots 9 of the first lower annular block 4 and the second lower annular block 401. By engaging the first upper annular block 6 and the second upper annular block 601 with the slots 9 of the first lower annular block 4 and the second lower annular block 401, the first connecting pipe 3, the second connecting pipe 5, and the top cover 8 are connected together.

[0026] The inner circumference of the slot 9 is provided with multiple mounting slots 10. One side of the inner wall of the mounting slot 10 is provided with an L-shaped slot 11. One side of the inner wall of the L-shaped slot 11 is provided with a through hole 12. Hollow tubes 16 are welded to the outer circumference of the first upper annular block 6 and the outer circumference of the second upper annular block 601. One end of the hollow tube 16 is slidably inserted with a locking post 17. The locking post 17 slides along the L-shaped slot 11 and is locked into the through hole 12.

[0027] A spring 18 is welded to one end of the locking post 17, and the other end of the spring 18 is fixedly connected to the inner wall of the hollow tube 16. The spring 18 is made of stainless steel wire with a stiffness coefficient of 30-60 N / mm.

[0028] Rotating the second connecting pipe 5 or the top cover 8 causes the first upper annular block 6 and the second upper annular block 601 to rotate, thereby causing the locking post 17 to move along the L-shaped groove 11. When the locking post 17 is aligned with the through hole 12, the locking post 17 pops out and locks into the through hole 12 under the elastic action of the spring 18, thereby fixing the first connecting pipe 3, the second connecting pipe 5, and the top cover 8 together.

[0029] Flanges 2 are welded to the top of the underground pipe 1 and the bottom of the first connecting pipe 3. The two flanges 2 are fixed together by bolts, which facilitates the connection and maintenance of the underground pipe 1 and the first connecting pipe 3.

[0030] The second connecting pipe 5 has multiple water hose connection ports 7 around its circumference.

[0031] Multiple connecting rods 13 are welded to the outer circumference of the first lower annular block 4 and the second lower annular block 401. A slip ring 14 is slidably sleeved on the outer wall of the connecting rod 13. Multiple push rods 15 are slidably inserted into the outer circumference of the first lower annular block 4 and the second lower annular block 401. One side of the slip ring 14 is fixedly connected to one end of the push rod 15. The other end of the push rod 15 contacts the locking post 17, pushing the push rod 15 to move. Under the push of the push rod 15, the locking post 17 moves into the hollow tube 16, thereby separating the locking post 17 from the through hole 12, so that the second connecting tube 5 or the top cover 8 can be disassembled and repaired.

[0032] Underground pipe 1 has an L-shaped structure.

[0033] The outer circumference of both the underground pipe 1 and the outer circumference of the first connecting pipe 3 are welded with reinforcing ribs. One side of the reinforcing ribs is connected to the flange 2, thereby enhancing their pressure-bearing capacity.

[0034] The working principle of this embodiment is as follows: In use, firstly, the underground pipe 1 and the first connecting pipe 3 are fixedly connected together by the flange 2 and bolts. Then, the first upper annular block 6 and the second upper annular block 601 are respectively engaged with the slots 9 of the first lower annular block 4 and the second lower annular block 401 to connect the first connecting pipe 3, the second connecting pipe 5, and the top cover 8. Then, the second connecting pipe 5 or the top cover 8 is rotated to drive the first upper annular block 6 and the second upper annular block 601 to rotate, thereby driving the locking post 17 to move along the L-shaped groove 11. During this process, under the compression of the first lower annular block 4 and the second lower annular block 401, the locking post 17 moves into the hollow pipe 16, thereby causing the spring 18 to contract. When the locking post 17 is aligned with the through hole 12, under the elastic action of the spring 18, the locking post 17 pops out and locks into the through hole 12, thereby fixing the first connecting pipe 3, the second connecting pipe 5, and the top cover 8 together.

[0035] When the second connecting pipe 5 or the top cover 8 is damaged, push the push rod 15 to move. When the push rod 15 is in contact with the locking post 17, the locking post 17 moves into the hollow tube 16 under the push of the push rod 15, thereby separating the locking post 17 from the through hole 12. At the same time, rotate the second connecting pipe 5 or the top cover 8 to move the locking post 17 along the L-shaped groove 11, thereby sliding the locking post 17 out of the through hole 12. Then lift the second connecting pipe 5 or the top cover 8 upward to disassemble the second connecting pipe 5 and the top cover 8.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A highly reliable and easy-to-maintain fire hydrant, comprising an underground pipe (1), a first connecting pipe (3), a second connecting pipe (5), and a top cover (8), characterized in that, The top end of the first connecting pipe (3) is fixedly connected to a first lower annular block (4), the bottom end of the second connecting pipe (5) is fixedly connected to a first upper annular block (6), the top end of the second connecting pipe (5) is fixedly connected to a second lower annular block (401), the top of the first lower annular block (4) and the top of the second lower annular block (401) are both provided with slots (9), the bottom end of the top cover (8) is fixedly connected to a second upper annular block (601), the first upper annular block (6) and the second upper annular block (601) are respectively engaged with the slots (9) of the first lower annular block (4) and the second lower annular block (401), the slots (9) has multiple mounting grooves (10) on its inner circumference. One side of the mounting groove (10) has an L-shaped groove (11) on its inner wall. One side of the L-shaped groove (11) has a through hole (12) on its inner wall. Hollow tubes (16) are fixedly connected to the outer circumference of the first upper annular block (6) and the outer circumference of the second upper annular block (601). A locking post (17) is slidably inserted into one end of the hollow tube (16). The locking post (17) slides along the L-shaped groove (11) and is inserted into the through hole (12). A spring (18) is fixedly connected to one end of the locking post (17). The other end of the spring (18) is fixedly connected to the inner wall of the hollow tube (16).

2. The highly reliable and easily maintainable fire hydrant according to claim 1, characterized in that, The top end of the underground pipe (1) and the bottom end of the first connecting pipe (3) are both fixedly connected to flanges (2), and the two flanges (2) are fixed together by bolts.

3. The highly reliable and easily maintainable fire hydrant according to claim 1, characterized in that, The second connecting pipe (5) has multiple water hose connection ports (7) around its circumference.

4. A highly reliable and easily maintainable fire hydrant according to claim 1, characterized in that, Multiple connecting rods (13) are fixedly connected to the outer circumference of the first lower annular block (4) and the second lower annular block (401), and a slip ring (14) is slidably sleeved on the outer wall of the connecting rod (13).

5. A highly reliable and easily maintainable fire hydrant according to claim 4, characterized in that, Multiple push rods (15) are slidably inserted into the outer circumference of the first lower annular block (4) and the second lower annular block (401). One side of the slip ring (14) is fixedly connected to one end of the push rod (15), and the other end of the push rod (15) is in contact with the locking post (17).

6. A highly reliable and easily maintainable fire hydrant according to claim 1, characterized in that, The underground pipe (1) has an L-shaped structure.

7. A highly reliable and easily maintainable fire hydrant according to claim 1, characterized in that, The outer circumference of the underground pipe (1) and the outer circumference of the first connecting pipe (3) are both fixedly connected with reinforcing ribs, and one side of the reinforcing ribs is connected to the flange (2).

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