Outdoor fire hydrant

Abstract

The outdoor fire hydrant is simple in structure and convenient to operate and has an anti-freezing function, the outdoor fire hydrant comprises a fire hydrant body, a water outlet pipe arranged on the fire hydrant body, a first cover and a second cover, heat preservation cotton is arranged in the first cover and the second cover respectively, and the heat preservation cotton is provided with a containing groove matched with the fire hydrant body. And three connecting surfaces of the first cover and the second cover are respectively provided with a connecting device for connecting the first cover and the second cover.

Description

Technical Field

[0001] The utility model relates to the technical field of fire hydrants, in particular to an outdoor fire hydrant. Background Art

[0002] An outdoor fire hydrant is a water supply facility installed on the fire water supply network outside a building. It is usually installed on the side of the road. It is mainly used for fire trucks to draw water from the municipal water supply network or the outdoor fire water supply network to implement fire extinguishing. It can also be directly connected to a water hose or a water gun to discharge water for fire extinguishing. It is one of the important measures to fight fires.

[0003] In the prior art, outdoor fire hydrants need to be treated for freezing in winter. Generally, maintenance personnel wrap insulation cotton around the outer ring for insulation. The insulation cotton is directly wrapped with transparent tape, which is unevenly wrapped and inconvenient to disassemble when the fire hydrant is used, which is not conducive to the operation of the staff. Utility Model Content

[0004] Therefore, in view of the above problems, the utility model proposes an outdoor fire hydrant which has a simple structure, is easy to operate and has an antifreeze function.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is to provide an outdoor fire hydrant, including a fire hydrant body, a water outlet pipe arranged on the fire hydrant body, a first cover and a second cover, the first cover and the second cover are respectively provided with thermal insulation cotton, the thermal insulation cotton matches the fire hydrant body to open a placement groove, and the three connecting surfaces of the first cover and the second cover are respectively provided with connecting devices for connecting the first cover and the second cover.

[0006] A further improvement is that the connecting device includes a first fixed block arranged on the first cover and a second fixed block arranged on the second cover, the second fixed block is provided with a sliding channel that penetrates the second fixed block, a locking rod is slidably provided in the sliding channel and the locking rod can pass through the sliding channel, the first fixed block is provided with a locking channel for the locking rod to pass through, and the locking channel is provided with an anti-detachment device for preventing the locking rod from escaping from the locking channel.

[0007] A further improvement is that the anti-slip device includes a gear, the gear is rotatably arranged in the engaging channel, a tooth row is provided on the engaging rod, the gear is meshed with the tooth row for transmission, and a limit device for limiting the rotation of the gear is provided on the first fixing block.

[0008] A further improvement is that the limiting device includes a worm and a worm wheel, the worm wheel rotates coaxially with the gear, the worm is rotatably arranged on the first fixed block, one end of the worm is meshed with the worm wheel for transmission, and the other end of the worm passes through the first fixed block.

[0009] A further improvement is that: a limit plate is provided on the engaging rod to prevent the engaging rod from passing through the sliding channel, and the limit plate resists the inner wall of the sliding channel.

[0010] A further improvement is that it also includes a spring, which is arranged between the limit plate and the inner wall of the sliding channel.

[0011] A further improvement is that a drainage channel for draining water from the fire hydrant is provided on the fire hydrant body, the drainage channel is located at the valve seat of the fire hydrant, and a sealing plug is threadedly connected to the drainage channel.

[0012] A further improvement is that a rotating handle is provided on the worm.

[0013] A further improvement is that: an operation flow chart for removing the first cover and the second cover is provided on the first cover.

[0014] The advantages and beneficial effects of the utility model are:

[0015] 1. Simple structure and easy installation. When in use, the first cover and the second cover are directly covered on the fire hydrant. The heat preservation cotton inside has an antifreeze effect on the fire hydrant, which is not only convenient for the staff to operate, but also can protect the fire hydrant.

[0016] 2. The drainage channel can drain the water remaining inside the fire hydrant, which can further improve the antifreeze ability of the fire hydrant and prevent the residual water from rusting the fire hydrant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the cutaway structure of an outdoor fire hydrant according to this embodiment.

[0018] Figure 2 This is a schematic diagram of the cross-section structure of the connecting device of this embodiment.

[0019] Figure 3 This is a schematic diagram of the installation structure of this embodiment. DETAILED DESCRIPTION

[0020] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0021] like Figure 1-Figure 3As shown, an outdoor fire hydrant includes a fire hydrant body 1, a water outlet pipe 2 arranged on the fire hydrant body 1, a first cover 5 and a second cover 6, wherein the first cover 5 and the second cover 6 are respectively provided with thermal insulation cotton 4, and the thermal insulation cotton 4 is matched with the fire hydrant body 1 to open a placement groove, and the three connecting surfaces of the first cover 5 and the second cover 6 are respectively provided with connecting devices for connecting the first cover 5 and the second cover 6.

[0022] Specifically, the connecting device includes a first fixed block 7 provided on the first cover 5, a second fixed block 8 provided on the second cover 6, and a gear 11. The second fixed block 8 is provided with a sliding channel that penetrates the second fixed block 8. A locking rod 9 is slidably provided in the sliding channel and the locking rod 9 can pass through the sliding channel. The first fixed block 7 is provided with a locking channel 10 for the locking rod 9 to pass through. The gear 11 is rotatably provided in the locking channel 10. The locking rod 9 is provided with a tooth row. The gear 11 is meshed with the tooth row for transmission. The first fixed block 7 is provided with a worm 13 and a worm wheel 12 for limiting the rotation of the gear 11. The worm wheel 12 rotates coaxially with the gear 11. The worm 13 is rotatably provided on the first fixed block 7. One end of the worm 13 is meshed with the worm wheel 12 for transmission, and the other end of the worm 13 passes through the first fixed block 7.

[0023] In order to prevent the engaging rod 9 from sliding out of the sliding channel, a limiting plate 13 is provided on the engaging rod 9 to prevent the engaging rod 9 from passing through the sliding channel, and the limiting plate 13 resists the inner wall of the sliding channel.

[0024] In order to facilitate the insertion of the locking rod 9 into the locking channel 10 , a spring 14 is further included. The spring 14 is arranged between the limiting plate 13 and the inner wall of the sliding channel.

[0025] In order to prevent the water after fire fighting from remaining in the fire hydrant body 1 and freezing the fire hydrant, a drainage channel for draining the water inside the fire hydrant is opened on the fire hydrant body 1. The drainage channel is located at the valve seat position of the fire hydrant, and a sealing plug 3 is threadedly connected to the drainage channel.

[0026] In order to facilitate the rotation of the worm 13 , a rotation handle 19 is provided on the worm 13 .

[0027] In order to prevent others from not understanding the operation, an operation flow chart (not shown in the figure) for removing the first cover 5 and the second cover 6 is provided on the first cover 5 .

[0028] When in use, when the fire hydrant needs to be antifreeze, the first cover 5 and the second cover 6 are covered on the fire hydrant, and then the locking rod 9 is inserted into the locking channel 10. At this time, the tooth row on the locking rod 9 is engaged with the gear 11, and then the worm 13 is rotated, the worm 13 drives the worm wheel 12 to rotate, and the worm wheel 12 drives the gear 11 to rotate. The gear 11 is engaged with the tooth row for transmission, so that the locking rod 9 is deeply inserted into the locking channel 10, so that the first sealing cover and the second sealing cover resist connection, thereby covering the fire hydrant, so that the thermal insulation cotton 4 covers the fire hydrant, thereby preventing the fire hydrant from freezing.

[0029] When firefighting is required, the worm 13 is reversed, and the worm 13 drives the worm wheel 12 to reverse, thereby driving the gear 11 to reverse, so that the engaging rod 9 slides out of the engaging channel 10 and releases the engagement with the gear 11, and then the first cover 5 and the second cover 6 are removed to carry out firefighting.

[0030] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. An outdoor fire hydrant, comprising a fire hydrant body and a water outlet pipe arranged on the fire hydrant body, characterized in that: It also includes a first cover and a second cover, wherein the first cover and the second cover are respectively provided with heat-insulating cotton, the heat-insulating cotton is matched with a placement groove on the fire hydrant body, and the three connecting surfaces of the first cover and the second cover are respectively provided with connecting devices for connecting the first cover and the second cover.

2. An outdoor fire hydrant according to claim 1, characterized in that: The connecting device includes a first fixed block arranged on the first cover and a second fixed block arranged on the second cover, the second fixed block is provided with a sliding channel penetrating the second fixed block, a locking rod is slidably provided in the sliding channel and the locking rod can pass through the sliding channel, the first fixed block is provided with a locking channel for the locking rod to pass through, and the locking channel is provided with an anti-detachment device for preventing the locking rod from escaping from the locking channel.

3. An outdoor fire hydrant according to claim 2, characterized in that: The anti-slip device comprises a gear, the gear is rotatably arranged in the engaging channel, a tooth row is provided on the engaging rod, the gear is meshed with the tooth row for transmission, and a limiting device for limiting the rotation of the gear is provided on the first fixing block.

4. An outdoor fire hydrant according to claim 3, characterized in that: The limiting device includes a worm and a worm wheel. The worm wheel rotates coaxially with the gear. The worm is rotatably arranged on the first fixed block. One end of the worm is meshed with the worm wheel for transmission, and the other end of the worm passes through the first fixed block.

5. An outdoor fire hydrant according to claim 2, characterized in that: The locking rod is provided with a limiting plate for preventing the locking rod from passing through the sliding channel, and the limiting plate resists the inner wall of the sliding channel.

6. An outdoor fire hydrant according to claim 5, characterized in that: It also includes a spring, which is arranged between the limiting plate and the inner wall of the sliding channel.

7. An outdoor fire hydrant according to claim 1, characterized in that: The fire hydrant body is provided with a drainage channel for draining water from the fire hydrant. The drainage channel is located at the valve seat of the fire hydrant. A sealing plug is threadedly connected to the drainage channel.

8. An outdoor fire hydrant according to claim 4, characterized in that: The worm is provided with a rotating handle.

9. An outdoor fire hydrant according to claim 1, characterized in that: The first cover is provided with an operation flow chart for removing the first cover and the second cover.

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