CN113957955A

CN113957955A - Automatic telescopic fire hydrant

Info

Publication number: CN113957955A
Application number: CN202111262008.1A
Authority: CN
Inventors: 熊志生; 潘璇; 史海坤
Original assignee: Oechsler Plastic Products Taicang Co Ltd
Current assignee: Oechsler Plastic Products Taicang Co Ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-01-21

Abstract

The invention belongs to the technical field of fire-fighting equipment, and particularly relates to an automatic telescopic fire hydrant. The fire hydrant comprises a bolt shell, a lifting cylinder body, a lifting device and a valve component; the bolt shell is integrally columnar, the top of the bolt shell is provided with a counter bore extending downwards, and the lifting cylinder body is slidably arranged in the counter bore; the bottom of the lifting cylinder body is provided with an upward extending cylinder body water inlet flow passage, the upper end of the cylinder body water inlet flow passage is provided with a valve cavity, and the upper part of the valve cavity is connected with a plurality of cylinder body water outlet flow passages extending to the top of the lifting cylinder body; a valve component for controlling the on-off of the valve cavity is arranged at the valve cavity; the lifting device is arranged in the bolt shell and drives the lifting cylinder body to move up and down; the fastening shell is also provided with a fastening shell water inlet flow passage communicated with the counter bore. This fire hydrant can satisfy the demand of a plurality of water intaking ends water intaking simultaneously, can bury ground, can rise when using, can keep flushing with ground when not using, does not occupy the ground space, does not influence the pedestrian, also can not damaged by the collision of passing vehicle, especially is fit for using in the nervous urban area in space shortage.

Description

Automatic telescopic fire hydrant

Technical Field

The invention belongs to the technical field of fire-fighting equipment, and particularly relates to an automatic telescopic fire hydrant.

Background

It is widely believed that water can be discharged immediately to extinguish a fire as long as a fire truck arrives at a fire scene, otherwise, a considerable part of fire trucks equipped in fire brigades, such as high-lift fire trucks, fire scene lighting trucks and the like, need to be matched with the fire truck for use, some fire trucks have limited water carrying capacity due to self transportation, and need to find a water source to continuously extinguish the fire when extinguishing the fire, and at the moment, a fire hydrant plays a continuous water supply function, and is one of important fire fighting facilities for extinguishing the fire.

At present, current outdoor fire hydrant all erects subaerial, and the part that exceeds ground receives unexpected striking easily, also causes the unnecessary loss for pedestrian, traffic easily, and in addition, the fire hydrant of open-air installation has corrosion phenomenon after a period, maintains untimely normal use that probably influences the fire hydrant. In addition, the number of the water outlets of the conventional fire hydrant is small, the requirement of a plurality of fire fighting water supply in a dense fire scene is difficult to meet, and the efficiency of the fire hydrant is low.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an automatic telescopic fire hydrant.

The invention provides an automatic telescopic fire hydrant, which comprises a hydrant shell, a lifting cylinder body, a lifting device and a valve component, wherein the hydrant shell is provided with a first end and a second end; the bolt shell is integrally columnar, the top of the bolt shell is provided with a counter bore extending downwards, and the lifting cylinder body is slidably arranged in the counter bore; the bottom of the lifting cylinder body is provided with an upward extending cylinder body water inlet flow passage, the upper end of the cylinder body water inlet flow passage is provided with a valve cavity, and the upper part of the valve cavity is connected with a plurality of cylinder body water outlet flow passages extending to the top of the lifting cylinder body; a valve component for controlling the on-off of the valve cavity is arranged at the valve cavity; the lifting device is arranged in the bolt shell and drives the lifting cylinder body to move up and down; the fastening shell is also provided with a fastening shell water inlet flow passage communicated with the counter bore.

The automatic telescopic fire hydrant provided by the invention drives the lifting cylinder body to move through the lifting device. When fire control water intaking is needed, the lifting cylinder body rises so as to fetch water conveniently. When not using at ordinary times, the lift cylinder body sinks, avoids causing the hindrance to the pedestrian, avoids being collided by the vehicle.

In some embodiments, the top of the tether housing is a flat surface; when the lifting cylinder body descends, the lifting cylinder body is positioned below the flat surface; the top of the fastening shell is also provided with an upper cover for covering the counter bore, and the upper surface of the upper cover is flush with the top of the fastening shell. The upper cover is in the lid state at ordinary times, prevents that inner structure from exposing, avoids damaging, avoids the dust deposit.

In some embodiments, the bolt shell is buried in the ground, and the top of the bolt shell is flush with the ground, so that the arrangement mode can keep the ground flat to the maximum extent, furthest lightens the influence on pedestrians, and is suitable for being used in urban areas with tight space. The shell fastening water inlet flow channel extends into the counter bore from the side wall of the shell fastening, so that the pipelines can be conveniently buried and connected during construction.

In some embodiments, the lifting device comprises a first motor, a reduction gearbox, a threaded rod; a mechanical bin is arranged at the bottom of the bolt shell; the first motor and the reduction gear box are arranged in the mechanical bin, and an output shaft of the first motor is connected with an input end of the reduction gear box; the bottom of the lifting cylinder body is provided with a vertical threaded hole, and the upper end of the threaded rod is provided with an external thread and is arranged in the threaded hole in a matched manner; the lower end of the threaded rod extends into the mechanical bin and is connected with the output end of the reduction gear box. The first motor rotates to drive the reduction gear box, so that the threaded rod is driven to rotate, and the lifting cylinder body is pushed to ascend and descend.

In some embodiments, in order to balance the stress during lifting, two sets of same lifting devices can be symmetrically arranged in the bolt shell, and the lifting cylinders are synchronously driven to move up and down.

In some embodiments, the valve cavity is drum-shaped with upper and lower portions being narrow and a middle section being wide; the valve component comprises a valve plate, a valve rod and a first gear; the valve rod is vertically slidably arranged in the lifting cylinder body, and the lower end of the valve rod extends into the valve cavity; the valve plate is transversely fixed at the lower end of the valve rod; the first gear is rotatably arranged in the lifting cylinder body, and the center of the first gear is provided with an internal threaded hole; the valve rod is arranged in the internal thread hole in a threaded fit mode. The valve rod is driven to move up and down through the rotation of the first gear, when the valve rod moves to the lowest position, the valve plate abuts against the lower edge of the valve cavity, no gap exists between the valve plate and the valve cavity, and the closed state is achieved; otherwise, the valve plate moves to the middle of the valve cavity, and an annular gap is formed between the valve plate and the valve cavity to achieve a communication state.

In some embodiments, the valve assembly further comprises a second gear, a second motor; the second motor is fixed in the lifting cylinder body, and the second gear is fixed on an output shaft of the second motor and meshed with the first gear. The second motor drives the second gear to rotate, so that the first gear is driven to rotate, and the valve rod is enabled to lift and descend with the valve plate.

In some embodiments, the top of the lifting cylinder is provided with a plurality of connecting nozzles, the type of the connecting nozzles is matched with the connector of a conventional fire-fighting pipeline, and each connecting nozzle corresponds to one cylinder water outlet flow passage.

In some embodiments, there are four connecting nozzles distributed in an annular array, and the included angle between adjacent connecting nozzles is 90 °; and all the connection mouth openings are upward.

When the automatic telescopic fire hydrant provided by the invention supplies water, water flow sequentially flows through the hydrant casing water inlet flow passage, the counter bore, the cylinder body water inlet flow passage, the valve cavity and the cylinder body water outlet flow passage in the fire hydrant. If necessary, sealing structures such as sealing rings can be provided according to the prior art to prevent water leakage in the range of water flow. For example, a rubber sealing ring can be arranged on the inner wall of the counter bore to prevent water seepage from a gap between the outer wall of the lifting cylinder body and the inner wall of the counter bore; a rubber sealing ring can be arranged in a gap between the threaded rod and the top wall of the mechanical bin; a rubber sealing ring may be provided in the gap between the valve rod and the lift cylinder, etc.

Has the advantages that: compared with the prior art, the automatic telescopic fire hydrant provided by the invention can meet the requirement of simultaneously taking water from a plurality of water taking ends, can be buried in the ground, can be lifted when being used, can be kept flush with the ground when not being used, does not occupy the ground space, does not influence pedestrians, cannot be impacted and damaged by passing vehicles, and is particularly suitable for being used in urban areas with short space.

Drawings

Fig. 1 is a schematic view of a fire hydrant in an unelevated state.

Fig. 2 is a schematic diagram of the hydrant in a raised state.

Fig. 3 is a cross-sectional view of the interior of the hydrant.

Fig. 4 is an internal sectional view of the elevating cylinder.

Fig. 5 is a schematic structural diagram of the lifting device.

Fig. 6 is a schematic view of the structure of the valve assembly.

In the figure, a bolt shell 1, a lifting cylinder body 2, a lifting device 3, a valve component 4, an upper cover 5, a counter bore 11, a bolt shell water inlet flow passage 12, a mechanical bin 13, a cylinder body water inlet flow passage 21, a valve cavity 22, a cylinder body water outlet flow passage 23, a connecting nozzle 24, a first motor 31, a reduction gear box 32, a threaded rod 33, a valve plate 41, a valve rod 42, a first gear 43, a second gear 44 and a second motor 45.

Detailed Description

The invention is further illustrated by the following examples, which are intended to illustrate the technical solutions of the invention more clearly and are not to be construed as a limitation.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Example 1

An automatic telescopic fire hydrant, as shown in fig. 1 to 6, comprises a hydrant casing 1, a lifting cylinder 2, a lifting device 3 and a valve assembly 4; the bolt shell 1 is integrally columnar, the top of the bolt shell is provided with a counter bore 11 extending downwards, and the lifting cylinder body 2 is slidably arranged in the counter bore 11; the bottom of the lifting cylinder body 2 is provided with a cylinder body water inlet channel 21 extending upwards, the upper end of the cylinder body water inlet channel 21 is provided with a valve cavity 22, and the upper part of the valve cavity 22 is connected with a plurality of cylinder body water outlet channels 23 extending to the top of the lifting cylinder body 2; a valve component 4 for controlling the on-off of the valve cavity 22 is arranged at the valve cavity 22; the lifting device 3 is arranged in the bolt shell 1 and drives the lifting cylinder body 2 to move up and down; the bolt shell 1 is also provided with a bolt shell water inlet flow passage 12 communicated with the counter bore 11.

In the embodiment, the top of the bolt shell 1 is a flat surface; when the lifting cylinder 2 is lowered, the lifting cylinder 2 is located below the flat surface; an upper cover 5 covering the counter bore 11 is further arranged at the top of the bolt shell 1, and the upper surface of the upper cover 5 is flush with the top of the bolt shell 1.

In the embodiment, the bolt shell 1 is buried in the ground, and the top of the bolt shell 1 is flush with the ground; the bolt housing water inlet channel 12 extends from the side wall of the bolt housing 1 into the counterbore 11.

In this embodiment, the lifting device 3 includes a first motor 31, a reduction gear box 32, and a threaded rod 33; the bottom of the bolt shell 1 is provided with a mechanical bin 13; the first motor 31 and the reduction gear box 32 are arranged in the mechanical bin 13, and an output shaft of the first motor 31 is connected with an input end of the reduction gear box 32; the bottom of the lifting cylinder body 2 is provided with a vertical threaded hole, and the upper end of the threaded rod 33 is provided with an external thread and is arranged in the threaded hole in a matching way; the lower end of the threaded rod 33 extends into the mechanical bin 13 and is connected to the output end of the reduction gear box 32.

In this embodiment, the two sets of lifting devices 3 are symmetrically arranged in the bolt housing 1 and synchronously drive the lifting cylinder 2 to move up and down.

In this embodiment, the valve cavity 22 is drum-shaped with narrow upper and lower parts and wide middle part; the valve assembly 4 comprises a valve plate 41, a valve rod 42 and a first gear 43; the valve rod 42 is vertically arranged in the lifting cylinder body 2 in a sliding way, and the lower end of the valve rod 42 extends into the valve cavity 22; the valve plate 41 is transversely fixed at the lower end of the valve rod 42; the first gear 43 is rotatably arranged in the lifting cylinder body 2, and the center of the first gear 43 is provided with an internal threaded hole; the valve stem 42 is threadedly inserted into the internally threaded bore.

In this embodiment, the valve assembly 4 further includes a second gear 44 and a second motor 45; the second motor 45 is fixed in the lift cylinder 2, and the second gear 44 is fixed on an output shaft of the second motor 45 and engaged with the first gear 43.

In the embodiment, the top of the lifting cylinder body 2 is provided with four connecting nozzles 24, each connecting nozzle 24 corresponds to one cylinder body water outlet flow channel 23, the connecting nozzles 24 are distributed in an annular array, and the included angle between every two adjacent connecting nozzles 24 is 90 degrees; and all the connection mouths 24 are open upwards.

The above embodiments are exemplary only, and are intended to illustrate the technical concept and features of the present invention so that those skilled in the art can understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An automatic telescopic fire hydrant, its characterized in that: comprises a fastening shell (1), a lifting cylinder body (2), a lifting device (3) and a valve component (4); the bolt shell (1) is integrally columnar, a counter bore (11) extending downwards is formed in the top of the bolt shell, and the lifting cylinder body (2) is slidably arranged in the counter bore (11); the bottom of the lifting cylinder body (2) is provided with a cylinder body water inlet flow passage (21) extending upwards, the upper end of the cylinder body water inlet flow passage (21) is provided with a valve cavity (22), and the upper part of the valve cavity (22) is connected with a plurality of cylinder body water outlet flow passages (23) extending to the top of the lifting cylinder body (2); a valve component (4) for controlling the on-off of the valve cavity (22) is arranged at the valve cavity (22); the lifting device (3) is arranged in the fastening shell (1) and drives the lifting cylinder body (2) to move up and down; the fastening shell (1) is also provided with a fastening shell water inlet flow passage (12) communicated with the counter bore (11).

2. An automatic telescoping fire hydrant in accordance with claim 1, wherein: the top of the bolt shell (1) is a flat surface; when the lifting cylinder (2) descends, the lifting cylinder (2) is positioned below the flat surface; an upper cover (5) covering the counter bore (11) is further arranged at the top of the fastening shell (1), and the upper surface of the upper cover (5) is flush with the top of the fastening shell (1).

3. An automatic telescoping fire hydrant in claim 2 in which: the fastening shell (1) is buried in the ground, and the top of the fastening shell (1) is flush with the ground; the bolt shell water inlet flow passage (12) extends from the side wall of the bolt shell (1) to the counter bore (11).

4. An automatic telescoping fire hydrant in accordance with claim 1, wherein: the lifting device (3) comprises a first motor (31), a reduction gear box (32) and a threaded rod (33); a mechanical bin (13) is arranged at the bottom of the fastening shell (1); the first motor (31) and the reduction gear box (32) are arranged in the mechanical bin (13), and an output shaft of the first motor (31) is connected with an input end of the reduction gear box (32); the bottom of the lifting cylinder body (2) is provided with a vertical threaded hole, and the upper end of the threaded rod (33) is provided with an external thread and is arranged in the threaded hole in a matched manner; the lower end of the threaded rod (33) extends into the mechanical bin (13) and is connected with the output end of the reduction gear box (32).

5. An automatic telescoping fire hydrant according to claim 4 in which: the two sets of lifting devices (3) are symmetrically arranged in the bolt shell (1) and synchronously drive the lifting cylinder body (2) to move up and down.

6. An automatic telescoping fire hydrant in accordance with claim 1, wherein: the valve cavity (22) is in a drum shape with a narrow upper part and a narrow lower part and a wide middle part; the valve component (4) comprises a valve plate (41), a valve rod (42) and a first gear (43); the valve rod (42) is vertically arranged in the lifting cylinder body (2) in a sliding manner, and the lower end of the valve rod (42) extends into the valve cavity (22); the valve plate (41) is transversely fixed at the lower end of the valve rod (42); the first gear (43) is rotatably arranged in the lifting cylinder body (2), and the center of the first gear (43) is provided with an internal threaded hole; the valve rod (42) is arranged in the internal threaded hole in a threaded fit mode.

7. An automatic telescoping fire hydrant in claim 6 in which: the valve assembly (4) further comprises a second gear (44) and a second motor (45); the second motor (45) is fixed in the lifting cylinder body (2), and the second gear (44) is fixed on an output shaft of the second motor (45) and meshed with the first gear (43).

8. An automatic telescoping fire hydrant in accordance with claim 1, wherein: the top of the lifting cylinder body (2) is provided with a plurality of connecting nozzles (24), and each connecting nozzle (24) corresponds to one cylinder body water outlet flow channel (23).

9. An automatic telescoping fire hydrant according to claim 8 in which: the four connecting nozzles (24) are distributed in an annular array, and the included angle between every two adjacent connecting nozzles (24) is 90 degrees; and all the connecting mouths (24) are opened upwards.