A retractable fire hydrant for a hangar

Abstract

A hangar is provided with a liftable and stowable fire hydrant, which comprises a valve seat and a recovery cylinder, a plurality of stages of push cylinders are arranged in the recovery cylinder, the cylinder walls of adjacent two stages of push cylinders are in sliding connection, the push cylinder at the bottom is in sliding connection with the inner wall of the recovery cylinder, and the push cylinder at the top is connected with a hose connector assembly; a lifting valve rod assembly is arranged in the valve seat, the top of the lifting valve rod assembly is connected with a wrench position assembly in the hose connector assembly; an installation plate is arranged on the outer wall of the recovery cylinder, a lifting driving assembly is arranged on the installation plate, and the execution end of the lifting driving assembly is connected with the outer wall of the hose connector assembly; when use is needed, the hose connector assembly and the plurality of stages of push cylinders are sequentially lifted by the lifting driving assembly, so that the hose connector assembly protrudes from the ground. By adopting the lifting driving assembly and the cooperation between the recovery cylinder and the plurality of stages of push cylinders, the whole fire hydrant can be lifted from the ground when use, and can be hidden under the ground when not in use, so that the fire hydrant is prevented from being damaged by collision.

Description

Technical Field

[0001] This utility model relates to the field of fire hydrant technology, specifically to a fire hydrant for hangars that can be raised and retracted. Background Technology

[0002] Traditional fire hydrants are usually installed directly on the ground. Considering the safety of hangar space use, traditional fire hydrants are easily bumped and can affect the use of the space. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a fire hydrant for hangars that can be raised and lowered for concealment when not in use, and raised to the ground for operation when needed.

[0004] A retractable fire hydrant for hangars, installed underground, includes a valve seat and a recovery cylinder on the valve seat. The recovery cylinder has multiple push cylinders, with the cylinder walls of adjacent push cylinders being slidably connected. The bottom push cylinder is slidably connected to the inner wall of the recovery cylinder, and the top push cylinder is connected to a hose connector assembly. The valve seat is provided with a lifting valve stem assembly, and the top of the lifting valve stem assembly is connected to the wrench position assembly in the hose connector assembly; The outer wall of the recovery tank is provided with an installation plate, and the installation plate is provided with a lifting drive assembly. The execution end of the lifting drive assembly is connected to the outer wall of the water hose connector assembly. When needed, the lifting drive assembly sequentially drives the hose connector assembly and the multi-stage push cylinder to rise, so that the hose connector assembly protrudes from the ground.

[0005] Preferably, a slide rail and a sealing ring are provided between the cylinder walls of two adjacent push cylinders.

[0006] Preferably, the lifting valve stem assembly includes a threaded sleeve mounted on the valve seat and a lead screw disposed in the threaded sleeve; The bottom of the lead screw is connected to the valve disc, and the top is connected to the lower valve stem through a connecting assembly. The lower valve stem has an upper valve stem, and the top of the upper valve stem is connected to the wrench position assembly.

[0007] Preferably, a centering ring is provided on the inner wall of the top push cylinder, and the centering ring can slide along the outer wall of the lower valve stem.

[0008] Preferably, the lifting drive assembly includes a push rod motor mounted on the mounting plate and a connecting block connected to the actuator end of the push rod motor, the connecting block being connected to the side wall of the hose connector assembly.

[0009] Preferably, the lifting drive assembly includes a bearing sleeve disposed on the mounting plate, a gear sleeve disposed in the bearing sleeve, and a drive screw disposed in the gear sleeve; The top of the drive screw is connected to the side wall of the hose connector assembly, and the gear sleeve is connected to the power component.

[0010] Preferably, the power assembly includes a drive shaft disposed in the bearing sleeve, and a left gear and a right gear disposed on the drive shaft; The left gear is engaged with the gear thread sleeve, the right gear is engaged with the drive gear, the drive gear is mounted on the rocker shaft, and the rocker shaft is driven by the crank handle.

[0011] Preferably, the power assembly includes a drive motor mounted on the mounting plate and a drive gear mounted on the actuating end of the drive motor, the drive gear being meshed with the gear sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By employing the aforementioned lifting drive assembly, and the cooperation between the recovery cylinder and the multi-stage push cylinder, the entire fire hydrant can be raised above the ground when in use, and can be hidden underground when not in use to avoid damage from collisions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a retractable fire hydrant for hangars in one embodiment of the present invention; Figure 2 for Figure 1 Cross-sectional view of a central fire hydrant; Figure 3 For this Figure 1 A structural diagram of a medium-sized fire hydrant in use; Figure 4 This is a schematic diagram of the structure of a retractable fire hydrant for a hangar in another embodiment of the present invention; Figure 5 for Figure 4 Cross-sectional view of a central fire hydrant; Figure 6 For this Figure 4 A schematic diagram of the structure of a medium-sized fire hydrant in use.

[0014] Explanation of key component symbols: 10-Valve seat; 11-Recovery cylinder; 12-Push cylinder; 13-Water hose connector assembly; 14-Lifting valve stem assembly; 141-Threaded sleeve; 142-Threaded rod; 143-Connecting assembly; 144-Lower valve stem; 145-Upper valve stem; 15-Mounting plate; 16-Lifting drive assembly; 161-Bearing sleeve; 162-Gear threaded sleeve; 163-Drive screw; 164-Power assembly; 1641-Drive shaft; 1642-Left gear; 1643-Right gear; 1644-Drive gear; 1645-Rocker shaft; 1646-Crank handle; 16a-Lifting drive assembly; 16a1-Push rod motor; 16a2-Connecting block.

[0015] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0016] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0017] Please see Figures 1 to 3 A fire hydrant for hangars that can be raised and retracted is provided in one embodiment of the present utility model. It is installed underground and includes a valve seat 10 and a recovery cylinder 11 provided on the valve seat 10. The recovery cylinder 11 is provided with multiple push cylinders 12. The cylinder walls of two adjacent push cylinders 12 are slidably connected. The push cylinder at the bottom is slidably connected to the inner wall of the recovery cylinder 11, and the push cylinder at the top is connected to the hose connector assembly 13. The valve seat 10 is provided with a lifting valve stem assembly 14, and the top of the lifting valve stem assembly 14 is connected to the wrench position assembly in the hose connector assembly 13. The outer wall of the recovery cylinder 11 is provided with an installation plate 15, and the installation plate 15 is provided with a lifting drive assembly 16. The execution end of the lifting drive assembly 16 is connected to the outer wall of the water hose connector assembly 13.

[0018] It should be noted that the entire fire hydrant is installed inside the collection well. When needed, the well cover is opened, and the lifting drive assembly 16 sequentially drives the hose connector assembly 13 and the multi-stage push cylinder 12 to rise, so that the hose connector assembly 13 protrudes above the ground. Then, the hose is connected for fire extinguishing, and the valve is opened by the lifting valve rod assembly 14 to extinguish the fire. When not needed, the valve is closed by the lifting valve rod assembly 14, the hose is removed, and then the lifting drive assembly 16 sequentially drives the multi-stage push cylinder 12 and the hose connector assembly 13 to descend, so that the hose connector assembly is hidden below the ground. The well cover is then closed.

[0019] Please see Figure 2 and Figure 3In a preferred embodiment of this utility model, in order to keep the push cylinder 12 rising smoothly without rotating, a slide rail 121 is provided between the cylinder walls of two adjacent push cylinders 12. At the same time, no less than two pins 122 are provided on the top of the recovery cylinder 11 and the push cylinder 12 for storage to limit the movement and prevent the push cylinder 12 from derailing.

[0020] Furthermore, a sealing ring 123 is installed at the bottom of the push cylinder 12 to achieve a waterproof effect. The number of sealing rings 123 is no less than two sets.

[0021] Please see Figures 1 to 3 The lifting valve stem assembly 14 includes a threaded sleeve 141 mounted on the valve seat 10, and a threaded rod 142 disposed in the threaded sleeve 141; The bottom of the lead screw 142 is connected to the valve disc, and the top is connected to the lower valve stem 144 through the connecting assembly 143. The lower valve stem 144 is provided with an upper valve stem 145, and the top of the upper valve stem 145 is connected to the wrench position assembly.

[0022] In use, the upper valve stem 145, the lower valve stem 144, the connecting assembly 143, and the lead screw 142 are rotated by turning the external wrench, thereby causing the valve disc to rise or fall, thus achieving the purpose of opening and closing the valve disc.

[0023] In a preferred embodiment of this utility model, a centering ring 121 is provided on the inner wall of the top push cylinder 12. The centering ring 121 can slide along the outer wall of the lower valve stem 144, and the centering ring 121 is used to center the push cylinder 12 during the lifting and lowering process.

[0024] Please see Figures 1 to 3 The lifting drive assembly 16 includes a bearing sleeve 161 disposed on the mounting plate 15, a gear sleeve 162 disposed in the bearing sleeve 161, and a drive screw 163 disposed in the gear sleeve 162. The top of the drive screw 163 is connected to the side wall of the hose connector assembly 13, and the gear sleeve 162 is connected to the power assembly 164.

[0025] In one embodiment of the present invention, the power assembly 164 includes a transmission shaft 1641 disposed in the bearing sleeve 161, and a left gear 1642 and a right gear 1643 disposed on the transmission shaft 1641; The left gear 1642 is meshed with the gear sleeve 162, the right gear 1643 is meshed with the drive gear 1644, the drive gear 1644 is mounted on the rocker shaft 1645, and the rocker shaft 1645 is driven by the crank handle 1646.

[0026] It should be noted that, in use, by fitting the crank handle 1646 into the crank shaft 1645 (external hexagonal shape), and cranking the crank handle 1646, the crank shaft 1645 and the drive gear 1644 rotate. The drive gear 1644 drives the right gear 1643 and the left gear 1642 to rotate synchronously. The left gear 1642 drives the gear thread sleeve 162 to rotate, thereby causing the drive screw 163 to rise and fall.

[0027] In another embodiment of the present invention, the power assembly 164 includes a drive motor disposed on the mounting plate 15, a drive gear disposed on the actuating end of the drive motor, and the drive gear meshing with the gear sleeve 162.

[0028] Specifically, the drive motor and drive gear drive the gear sleeve 162 to rotate, causing the drive screw 163 to rise and fall.

[0029] Please see Figures 4 to 6 In another embodiment of the present invention, the lifting drive assembly 16a includes a push rod motor 16a1 disposed on the mounting plate 15, and a connecting block 16a2 connected to the execution end of the push rod motor 16a1. The connecting block 16a2 is connected to the side wall of the hose connector assembly 13.

[0030] In summary, by employing the lifting drive assembly 16 and the cooperation between the recovery cylinder 11 and the multi-stage push cylinder 12, this utility model enables the entire fire hydrant to be raised above the ground when in use and to be hidden below the ground when not in use, thus avoiding damage from collisions.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A retractable fire hydrant for hangars, installed underground, comprising a valve seat and a recovery cylinder disposed on the valve seat, characterized in that, The recovery cylinder is equipped with multiple push cylinders. The cylinder walls of adjacent push cylinders are slidably connected. The push cylinder at the bottom is slidably connected to the inner wall of the recovery cylinder, and the push cylinder at the top is connected to the water hose connector assembly. The valve seat is provided with a lifting valve stem assembly, and the top of the lifting valve stem assembly is connected to the wrench position assembly in the hose connector assembly; The outer wall of the recovery tank is provided with an installation plate, and the installation plate is provided with a lifting drive assembly. The execution end of the lifting drive assembly is connected to the outer wall of the water hose connector assembly. When needed, the lifting drive assembly sequentially drives the hose connector assembly and the multi-stage push cylinder to rise, so that the hose connector assembly protrudes from the ground.

2. The retractable fire hydrant for hangars according to claim 1, characterized in that, A slide rail and a sealing ring are provided between the cylinder walls of two adjacent push cylinders.

3. The retractable fire hydrant for hangars according to claim 1, characterized in that, The lifting valve stem assembly includes a threaded sleeve mounted on the valve seat and a threaded rod disposed in the threaded sleeve; The bottom of the lead screw is connected to the valve disc, and the top is connected to the lower valve stem through a connecting assembly. The lower valve stem has an upper valve stem, and the top of the upper valve stem is connected to the wrench position assembly.

4. The retractable fire hydrant for hangars according to claim 3, characterized in that, A centering ring is provided on the inner wall of the top push cylinder, and the centering ring can slide along the outer wall of the lower valve stem.

5. The retractable fire hydrant for hangars according to claim 1, characterized in that, The lifting drive assembly includes a push rod motor mounted on the mounting plate and a connecting block connected to the actuator end of the push rod motor. The connecting block is connected to the side wall of the hose connector assembly.

6. The retractable fire hydrant for hangars according to claim 1, characterized in that, The lifting drive assembly includes a bearing sleeve disposed on the mounting plate, a gear sleeve disposed in the bearing sleeve, and a drive screw disposed in the gear sleeve; The top of the drive screw is connected to the side wall of the hose connector assembly, and the gear sleeve is connected to the power component.

7. The retractable fire hydrant for hangars according to claim 6, characterized in that, The power assembly includes a drive shaft disposed in the bearing sleeve, and a left gear and a right gear disposed on the drive shaft; The left gear is engaged with the gear thread sleeve, the right gear is engaged with the drive gear, the drive gear is mounted on the rocker shaft, and the rocker shaft is driven by the crank handle.

8. The retractable fire hydrant for hangars according to claim 6, characterized in that, The power assembly includes a drive motor mounted on the mounting plate and a drive gear mounted on the actuating end of the drive motor, the drive gear being meshed with the gear sleeve.

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