Lifting fire hydrant for fire fighting

Abstract

The fire-fighting lifting fire hydrant comprises a bottom plate and a top plate, the bottom plate and the top plate are circular plates, a supporting rod is arranged between the bottom plate and the top plate, a driving screw rod is rotationally arranged between the bottom plate and the top plate, a movable plate is movably arranged on the surface of the bottom plate, a fire hydrant body is arranged on the upper surface of the movable plate, and the bottom plate and the top plate are both circular plates. A movable plate is arranged on the bottom plate, a driving screw rod is arranged on the top plate, a movable top block is screwed on the driving screw rod, the movable top block is located at the bottom of the movable plate, and a water supply pipe movably connected with a fire hydrant is arranged on the end face of the bottom plate in a penetrating manner. The movable plate is in threaded connection with the driving screw rod through the movable ejector block, when the driving screw rod is driven by equipment to rotate, the movable plate can be pushed to move through the movable ejector block, the fire hydrant is driven by the movable plate to ascend, and when power failure or equipment failure occurs, the fire hydrant can be directly pulled to ascend for emergency use.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a lifting fire hydrant for fire-fighting. Background Art

[0002] Traditional outdoor fire hydrants are installed approximately 60 centimeters above the ground. This structural arrangement not only consumes ground space, but also, due to deviations during construction, some exposed fire hydrants often deviate from their original design locations and land directly in the middle of pedestrian paths or blind paths between surrounding buildings, obstructing public access. Furthermore, after construction, some of these exposed fire hydrants are located close to motorway access roads, making them susceptible to damage from impacts. If a fire hydrant breaks, it can result in significant water waste. To address this issue, some existing technologies have introduced concealed fire hydrants installed underground, such as the invention patent application CN108049458A, "A Multi-Purpose Fire Hydrant with Protective Functions." This design addresses many of the drawbacks of traditional ground-based fire hydrants by concealing the hydrant underground. However, because this fire hydrant utilizes electronic control to raise and lower the hydrant body, a power outage or short circuit in the circuitry can severely impact firefighting operations. Therefore, a liftable fire hydrant for firefighting is proposed. Utility Model Content

[0003] The purpose of the present utility model is to provide a lifting fire hydrant for fire fighting, so as to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a lifting fire hydrant for fire fighting, comprising a bottom plate and a top plate, the bottom plate and the top plate are respectively circular plates and are arranged in parallel, a support rod is arranged between the bottom plate and the top plate, a driving screw is rotatably arranged between the bottom plate and the top plate, a movable plate is movably arranged on the surface of the bottom plate, a fire hydrant is arranged on the upper surface of the movable plate, a movable top block is screwed on the driving screw, the movable top block is located at the bottom of the movable plate, and a water supply pipe movably connected to the fire hydrant is penetrated by the end surface of the bottom plate.

[0005] According to the above technical solution, the bottom of the driving screw passes through the end face of the base plate and is coaxially connected to a driving gear. The lower surface of the base plate is fixedly connected to a connecting ring. The outer peripheral surface of the connecting ring is rotatably provided with an annular external gear, and the driving gears are respectively engaged with the annular external gears.

[0006] According to the above technical solution, the movable top block includes a movable block screwed to the driving screw, a connecting annular plate is fixedly connected between the movable blocks, and a groove for accommodating the movable top block is provided on the lower surface of the bottom plate.

[0007] According to the above technical solution, the support rod passes through the end face of the movable plate and is movably connected to the movable plate. The outer peripheral surface of the support rod is provided with a ratchet. The upper surface of the movable plate is fixedly connected with a positioning sleeve corresponding to the outer side of the support rod. The inner wall of the positioning sleeve is provided with a positioning groove, and the inner part of the positioning groove is provided with a pawl that cooperates with the ratchet for rotation.

[0008] According to the above technical solution, a rotating nut is provided through and rotated on the end surface of the top plate, the rotating nut is coaxially connected to the support rod, the outer peripheral surface of the rotating nut is provided with external teeth, and an annular transmission gear is provided for rotation inside the top plate, and the rotating nut is engaged with the annular transmission gear through the external teeth.

[0009] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention is provided with a bottom plate and a top plate, which are connected by a support rod, the equipment is buried below the ground, and a movable plate is provided, which is screwed to the driving screw through a movable top block. When the driving screw is driven by the equipment to rotate, the movable plate can be pushed to move by the movable top block, and the fire hydrant is driven to rise by the movable plate. When a power outage or equipment failure occurs, the fire hydrant can be directly pulled to rise for emergency use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0011] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the top plate cross-sectional structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the movable top block of the utility model;

[0014] Figure 4 yes Figure 1 A in the middle is an enlarged structural diagram;

[0015] In the figure: 1-bottom plate, 2-top plate, 3-support rod, 4-drive screw, 5-movable plate, 6-fire hydrant, 7-movable top block, 701-movable block, 702-connecting annular plate, 8-water supply pipe, 9-drive gear, 10-connecting ring, 11-annular outer gear, 12-ratchet, 13-positioning sleeve, 14-positioning groove, 15-ratchet, 16-rotating nut, 17-annular transmission gear. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-4 The utility model provides a technical solution: a fire-fighting lifting fire hydrant, comprising a bottom plate 1 and a top plate 2, wherein the bottom plate 1 and the top plate 2 are circular plates and are arranged in parallel. Figure 1 As shown, a support rod 3 is provided between the bottom plate 1 and the top plate 2, and a driving screw 4 is rotatably provided between the bottom plate 1 and the top plate 2. There are two driving screws 4, which are respectively vertically arranged. A movable plate 5 is movably provided on the surface of the bottom plate 1. The movable plate 5 is a circular plate and is coaxially arranged with the bottom plate 1. A fire hydrant 6 is provided on the upper surface of the movable plate 5. A movable top block 7 is screwed on the driving screw 4. The movable top block 7 is located at the bottom of the movable plate 5. A water supply pipe 8 movably connected to the fire hydrant 6 is provided on the end surface of the bottom plate 1, so that the fire hydrant 6 is always connected to the water supply pipe 8 during the lifting process. When the driving screw 4 rotates, the movable top block 7 is controlled to rise under the action of the threaded cooperation, and the movable top block 7 pushes the movable plate 5 to move, driving the fire hydrant to move upward. Since the movable top block 7 is located at the bottom of the bottom plate 1, the fire hydrant 6 can be directly pulled to move the fire hydrant 6 upward.

[0018] Specifically, the bottom of the driving screw 4 passes through the end face of the base plate 1 and is coaxially connected to a driving gear 9. The lower surface of the base plate 1 is fixedly connected to a connecting ring 10. The outer circumference of the connecting ring 10 is rotatably provided with an annular external gear 11. The driving gear 9 is respectively engaged with the annular external gear 11. A driving motor is provided to drive the annular external gear 11 or the driving gear 9 to rotate, so that the driving screw 4 keeps rotating synchronously.

[0019] Specifically, the movable top block 7 includes a movable block 701 screwed to the driving screw 4, and a connecting annular plate 702 is fixedly connected between the movable blocks 701. The lower surface of the base plate 1 is provided with a groove for accommodating the movable top block 7. The connecting annular plate 702 connects the movable block 701 as a whole. When the driving screw 4 rotates, the movable block 701 screwed thereto will not rotate synchronously therewith, ensuring that the movable block 701 can slide relative to the driving screw 4 under the action of the threaded fit.

[0020] Specifically, the support rod 3 passes through the end surface of the movable plate 5 and is movably connected to the movable plate 5. The outer peripheral surface of the support rod 3 is provided with a ratchet 12. The upper surface of the movable plate 5 is fixedly connected to the outer side of the support rod 3 with a positioning sleeve 13. The inner wall of the positioning sleeve 13 is provided with a positioning groove 14, and the internal rotation of the positioning groove 14 is provided with a pawl 15 that cooperates with the ratchet 12. When the fire hydrant 6 is pulled, the bottom plate 1 slides relative to the support rod 3, and under the action of the ratchet 12 and the pawl 15, the movable plate 5 will not be reset due to gravity, thereby positioning the fire hydrant 6.

[0021] Specifically, a rotating nut 16 is provided through the end surface of the top plate 2 and is rotatably provided. The rotating nut 16 is coaxially connected to the support rod 3. The outer peripheral surface of the rotating nut 16 is provided with external teeth. An annular transmission gear 17 is rotatably provided inside the top plate 2. The rotating nut 16 is meshed with the annular transmission gear 17 through the external teeth. Under the action of the annular transmission gear 17, the rotating nut 16 can rotate synchronously to control the synchronous rotation of the support rod 3. When the support rod 3 is controlled to rotate, the ratchet 12 is disengaged from the pawl 15, and the movable plate 5 can move downward under the action of gravity to reset the fire hydrant 6.

[0022] When the utility model is in use, the fire hydrant 6 is located between the top plate 2 and the bottom plate 1. By driving the driving screw 4 to rotate, the driving screw 4 is driven to rotate synchronously under the action of the driving gear 9 and the annular outer gear 11. Under the action of the threaded joint, the movable top block 7 moves up, and the movable top block 7 pushes the movable plate 5 to move up, and the fire hydrant 6 is driven by the movable plate 5 to move up. When the power is off or a fault occurs, the fire hydrant 6 can be directly pulled. Under the action of the pawl 15 and the ratchet 12, the movable plate 5 will not fall due to gravity, thereby achieving a positioning effect on the fire hydrant 6.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fire hydrant for fire fighting, comprising a bottom plate (1) and a top plate (2), characterized in that: The bottom plate (1) and the top plate (2) are circular plates and are arranged in parallel. A support rod (3) is arranged between the bottom plate (1) and the top plate (2). A driving screw (4) is rotatably arranged between the bottom plate (1) and the top plate (2). A movable plate (5) is movably arranged on the surface of the bottom plate (1). A fire hydrant (6) is arranged on the upper surface of the movable plate (5). A movable top block (7) is screwed on the driving screw (4). The movable top block (7) is located at the bottom of the movable plate (5). A water supply pipe (8) movably connected to the fire hydrant (6) is arranged through the end surface of the bottom plate (1).

2. A fire hydrant according to claim 1, characterized in that: The bottom of the driving screw (4) passes through the end surface of the base plate (1) and is coaxially connected to a driving gear (9); the lower surface of the base plate (1) is fixedly connected to a connecting ring (10); the outer peripheral surface of the connecting ring (10) is rotatably provided with an annular external gear (11), and the driving gear (9) is respectively meshed with the annular external gear (11).

3. A fire hydrant according to claim 2, characterized in that: The movable top block (7) comprises a movable block (701) screwed to the driving screw (4), a connecting annular plate (702) is fixedly connected between the movable blocks (701), and a groove for accommodating the movable top block (7) is provided on the lower surface of the bottom plate (1).

4. A fire-fighting lifting fire hydrant according to claim 3, characterized in that: The support rod (3) passes through the end surface of the movable plate (5) and is movably connected to the movable plate (5); the outer peripheral surface of the support rod (3) is provided with a ratchet (12); the upper surface of the movable plate (5) is fixedly connected with a positioning sleeve (13) corresponding to the outer side of the support rod (3); the inner wall of the positioning sleeve (13) is provided with a positioning groove (14), and the interior of the positioning groove (14) is rotatably provided with a ratchet (15) that cooperates with the ratchet (12).

5. A fire-fighting lifting hydrant according to claim 4, characterized in that: A rotating nut (16) is provided through the end surface of the top plate (2) and is rotatably provided thereon. The rotating nut (16) is coaxially connected to the support rod (3). External teeth are provided on the outer peripheral surface of the rotating nut (16). An annular transmission gear (17) is rotatably provided inside the top plate (2). The rotating nut (16) is meshed with the annular transmission gear (17) through the external teeth.

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