Road surface fire hydrant

Abstract

The utility model discloses a pavement fire hydrant which comprises a hydrant body fixed on the ground and communicated with an underground water pipe network, a water outlet head and a hydrant head are arranged on the hydrant body, the water outlet head is provided with a gate valve switch and a sealing cover, the hydrant head is provided with a rod head, the rod head is matched with a notch formed in the inner side of the sealing cover, the hydrant body is provided with an auxiliary hydrant pipe, and the auxiliary hydrant pipe is movably arranged relative to the hydrant body. The hydrant body of the fire hydrant can be lifted relative to the auxiliary hydrant pipe, so that the overall length of the fire hydrant can be adjusted, and the fire hydrant can be conveniently adjusted to meet the use requirements in engineering such as road renovation or at the connecting height for different fire fighting water purposes, and in addition, when emergency water needs occur, the fire hydrant can be conveniently used. A worker can take down the sealing cover to serve as a tool quick switch, the situation that water flows out of a temporary emergency switch when the tools are not limited to loss, damage and the like and are inconvenient to use is avoided, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire hydrant technical field, concretely relates to a road surface fire hydrant. BACKGROUND

[0002] Fire hydrant, formal name is fire hydrant, is a kind of fixed fire-fighting facilities, main function is control combustible, insulate combustion-supporting material, eliminate ignition source.Fire hydrant is divided into indoor fire hydrant and outdoor fire hydrant according to application site, fire hydrant is mainly used for fire truck to take water from municipal water supply pipe network or outdoor fire water supply pipe network to implement fire extinguishing, can also be directly connected with water hose, water gun outlet, and fire extinguishing.

[0003] In prior art, the road surface of urban area is constantly renovated and maintained in the process of urban construction, and the road surface is re-paved after being damaged in the maintenance process, and sometimes the road surface is raised, and in this process, the devices arranged on the original road surface need to be replaced adaptively, especially including but not limited to the road surface fire hydrant and other facilities that are half-buried below ground and cannot be easily replaced as a whole, so the cost is huge when these essential devices on the road surface are replaced, therefore, in order to reduce and save, it is necessary to design a road surface fire hydrant capable of height adjustment. UTILITARIAN CONTENT

[0004] The utility model aims at providing a road surface fire hydrant structure setting, the double-layered plug body is set, the length of fire hydrant main body is adjusted, and the installation and use requirements are adapted.

[0005] The technical scheme adopted by the utility model is as follows: a road surface fire hydrant, which is fixed to the ground and connected with underground water pipe network, is provided with a plug body, a water outlet head and a plug head are arranged on the plug body, the water outlet head is provided with a gate valve switch and a cover, the plug head is provided with a rod head, the rod head is matched with a notch arranged on the inner side of the cover, the plug body is provided with a secondary plug pipe, and the secondary plug pipe is movably arranged relative to the plug body.

[0006] As a further setting of the above scheme, the part of the secondary plug pipe located in the plug body is provided with a sealing ring part, and the sealing ring part is used to form a sealing structure between the outer edge of the mutually sleeved secondary plug pipe and the inner cavity of the plug body.

[0007] As a further setting of the above scheme, the valve plate grinding wheel is arranged in the flow channel part of the secondary plug pipe, and the valve plate grinding wheel comprises an axial movable plate and a grinding wheel plate rotatably arranged on the end of the rod head relative to the axial movable plate.

[0008] As a further setting of the above scheme, a circumferential limiting block is arranged on the axial movable plate, a circumferential limiting groove is arranged in the flow channel of the secondary plug pipe, and flow holes are arranged on the axial movable plate and the grinding wheel plate.

[0009] As a further arrangement of the above-mentioned scheme, the plug body is provided with a radial lock head, the outer side of the radial lock head is provided with a clamping head matched with the slot, and the inner side is provided with a clamping plate, the inner side of the clamping plate abuts on the auxiliary plug pipe, and is used for limiting the movement of the auxiliary plug pipe and the plug body.

[0010] As a further arrangement of the above-mentioned scheme, the plug body is provided with a radial lock head, the outer side of the radial lock head is provided with a clamping head matched with the slot, and the inner side is provided with a clamping plate, the inner side of the clamping plate abuts on the auxiliary plug pipe, and is used for limiting the movement of the auxiliary plug pipe and the plug body.

[0011] Beneficial effects: the fire hydrant of the utility model through the setting of the inner and outer double-layer plug body, make the plug body can be elevated relative to the auxiliary plug pipe, and in the adjustment for controlling the grinding wheel assembly of medium water on-off with the plug body relative to the auxiliary plug pipe axial movement, and through the sealing ring part between the auxiliary plug pipe and the plug body, keep the sealing of inside and outside, realize the overall length of the fire hydrant can be adjusted, when the connection height of road repair engineering or different fire water purposes, can carry out convenient adjustment and adapt to meet the use demand, in addition, through the design of the cover and the slot, make the staff can take off the cover as a tool to quickly switch when the emergency water demand occurs, convenient to use, avoid the temporary emergency switch of the tool including but not limited to loss, damage and other inconvenient use. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic diagram of the fire hydrant structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the fire hydrant outlet head structure of the embodiment.

[0014] Figure 3 It is a schematic diagram of the fire hydrant internal cross section structure of the embodiment.

[0015] Figure 4 It is a schematic diagram of the sealing ring part structure of the embodiment.

[0016] Reference signs: 1, plug body; 2, outlet head; 21, gate valve switch; 22, cover; 23, slot; 27, notch groove; 28, external thread part; 29, internal thread part; 3, plug head; 31, rod head; 32, valve plate grinding wheel; 33, axial movement plate; 331, circumferential limiting block; 332, circumferential limiting groove; 34, grinding wheel plate; 4, auxiliary plug pipe; 5, sealing ring part; 7, radial lock head; 71, clamping head; 72, clamping plate. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] Reference Figures 1-4 The utility model discloses a road surface fire hydrant, the fire hydrant of this embodiment includes the plug body 1 fixed on the ground and the underground water pipe network intercommunication and the vice plug pipe 4 of being set with plug body 1, and mutually reach the basic water seal, it is worth noting that, as Figure 3 As shown in the structure cooperation of plug body 1 and vice plug pipe 4 of this embodiment, the upper end of vice plug pipe 4 is inserted into the inner cavity of plug body 1, and a sealing structure is provided between the upper end edge of vice plug pipe 4 and the inner wall of plug body 1. The sealing structure includes, but is not limited to, a sealing rubber ring, and can achieve a certain degree of water sealing. The use scenario of the water sealing structure includes, under the rotation of the drive rod head 31, the abrasive wheel plate 34 rotates relative to the axial movable plate 33, so that the flow hole 35 is relative to the plug body 1 inside the water, at this time, the sealing ring part 5 prevents water from flowing out of the joint gap between plug body 1 and vice plug pipe 4.

[0019] Further, the plug body 1 of this embodiment is provided with a water outlet head 2 and a plug head 3. The water outlet head 2 is provided with a gate valve switch 21 and a cover 22. The plug head 3 is provided with a rod head 31, which is matched with a notch 23 provided on the inner side of the cover 22. The cover 22 of this embodiment is screwed onto the outer side of the gate valve switch 21 when the fire hydrant is not in use, to close the water outlet of the gate valve switch 21. When in use, the cover 22 is removed and can be used as a tool to drive and rotate the rod head 31 and the radial lock head 7. The gate valve switch 21 is opened after the cover 22 is removed and the abrasive wheel plate 34 is rotated relative to the axial movable plate 33 by rotating the rod head 31.

[0020] As a further setting of the above-mentioned scheme, the part of the vice plug pipe 4 located in the plug body 1 is provided with a sealing ring part 5, which forms a sealing structure between the outer edge of the vice plug pipe 4 and the inner cavity of the plug body 1.

[0021] As described above, the plug body 1 and the vice plug pipe 4 of this embodiment can be relatively telescopic. The sealing ring part 5 is provided as a sealing setting for the telescoping of the two, so that the two can still function as water pipes after telescoping.

[0022] As a further setting of the above-mentioned scheme, the lower end of the rod head 31 extends into the flow channel part of the vice plug pipe 4 and is provided with a valve plate abrasive wheel 32. The valve plate abrasive wheel 32 includes an axial movable plate 33 and an abrasive wheel plate 34 fixed to the end of the rod head 31 and rotating relative to the axial movable plate 33. The axial movable plate 33 is provided with a circumferential limiting block 331, and the flow channel of the vice plug pipe 4 is provided with a circumferential limiting groove 332. The axial movable plate 33 and the abrasive wheel plate 34 are provided with a flow hole 35.

[0023] As described above, in this embodiment, the valve plate grinding wheel 32 structure, composed of the axially movable plate 33 and the grinding wheel plate 34, adjusts the height of the fire hydrant by relative telescopic movement between the hydrant body 1 and the auxiliary hydrant pipe 4. The grinding wheel plate 34, based on its fixed connection to the lower end of the rod head 31, moves along with the hydrant body 1. It is worth noting that... Figure 3 As shown, the rod body at the lower end of the rod head 31 is not only fixedly connected to the grinding wheel plate 34, but also extends into the axially movable plate 33 at the front end for circumferential and axially fixed connection. Thus, when the bolt body 1 moves axially, it directly carries the axially movable plate 33 to move axially. On this basis, in order to prevent the axially movable plate 33 from rotating along with the rod head 31 during rotation, several axially extending circumferential limiting grooves 332 are also provided on the inner wall of the secondary bolt tube 4 in this embodiment. A circumferential limiting block 331 is provided on the axially movable plate 33, which is embedded in the circumferential limiting groove 332 and matches it to realize the circumferential fixation of the axially movable plate 33. Thus, the grinding wheel plate 34 rotates circumferentially relative to the axially movable plate 33 under the drive of the rod head 31, thereby controlling the flow or cut-off of the flow hole 35.

[0024] As a further provision of the above scheme, the bolt body 1 is provided with a radial locking head 7. The outer side of the radial locking head 7 is provided with a locking head 71 that matches the slot 23, and the inner side is provided with a clamping plate 72. The inner side of the clamping plate 72 abuts against the secondary bolt tube 4 to restrict the movement of the secondary bolt tube 4 and the bolt body 1.

[0025] As described above, in order to ensure the extension and retraction of the thrombus 1 and the secondary thrombus tube 4, the thrombus body 1 in this embodiment is also provided with a clamping plate 72 located inside the thrombus body 1 and outside the secondary thrombus tube 4. The outer side of the clamping plate 72 abuts against the locking head 71 that penetrates from the outside of the thrombus body 1, and the inner side abuts against the outer wall of the secondary thrombus tube 4. When in use, the radial locking head 71 is rotated and pushed forward by the thread, and the front end presses the clamping plate 72 to clamp in the middle. The secondary thrombus tube 4 is clamped and squeezed by friction, thereby maintaining the axial limit of the secondary thrombus tube 4.

[0026] As a further provision of the above scheme, the cover 22 is provided with an external threaded portion 28, and the water outlet 2 is provided with an internal threaded portion 29 that matches the external threaded portion 28. The internal threaded portion 29 is provided with a notch groove 27.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A road surface hydrant, characterized by: The utility model provides a water outlet head (2) and a bolt head (3) are equipped on the bolt body (1) which is fixed to the ground and connected with the underground water pipe network, the water outlet head (2) is equipped with a gate valve switch (21) and a cover (22), the bolt head (3) is equipped with a rod head (31), the rod head (31) is matched with the notch (23) arranged in the inside of the cover (22), the bolt body (1) is equipped with a vice bolt pipe (4), and the vice bolt pipe (4) is movably arranged relative to the bolt body (1).

2. A road hydrant according to claim 1, characterized in that: The part of the vice bolt pipe (4) in the bolt body (1) is equipped with a sealing ring part (5), and the sealing ring part (5) is used for forming a sealing structure between the outer edge of the vice bolt pipe (4) and the inner cavity of the bolt body (1).

3. A road hydrant according to claim 1, wherein: The lower end of the rod head (31) is arranged in the flow channel part of the vice bolt pipe (4) and is equipped with a valve plate grinding wheel (32), and the valve plate grinding wheel (32) comprises an axial movable plate (33) and a grinding wheel plate (34) which is fixed to the end of the rod head (31) and rotates relative to the axial movable plate (33).

4. A road hydrant according to claim 3, wherein: The axial movable plate (33) is equipped with a circumferential limiting block (331), the flow channel of the vice bolt pipe (4) is equipped with a circumferential limiting groove (332), and the axial movable plate (33) and the grinding wheel plate (34) are equipped with flow holes (35).

5. A road hydrant according to claim 1, wherein: The bolt body (1) is equipped with a radial lock head (7), the outer side of the radial lock head (7) is equipped with a clamping head (71) matched with the notch (23), the inner side is equipped with a clamping plate (72), the inner side of the clamping plate (72) abuts on the vice bolt pipe (4), and the vice bolt pipe (4) and the bolt body (1) are limited to move.

6. A road hydrant according to claim 1, wherein: The cover (22) is equipped with an external thread part (28), the water outlet head (2) is equipped with an internal thread part (29) matched with the external thread part (28), and the internal thread part (29) is equipped with a notch groove (27).

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