A freeze-proof structure of an outdoor fire hydrant

CN224902292UActive Publication Date: 2026-10-27WANXIAO FIRE TECH CO LTD
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Patent Information

Application Number
CN202522613496.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-09
Publication Date
2026-10-27
Estimated Expiration
2035-12-09

AI Technical Summary

Technical Problem

[0006]本实用新型的目的在于提供一种室外消防栓的防冻结构,以解决了上述背景技术中提出不便于对螺旋桨进行防护以及缺少对消防栓主体的加热功能的问题

Benefits of technology

[0016]本实用新型提供了一种室外消防栓的防冻结构,具备以下有益效果:

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Abstract

The utility model relates to the technical field of fire hydrant, and disclose a kind of freeze-proof structure of outdoor fire hydrant, including fire hydrant main part, heat absorption component, the heat absorption component includes the heat conduction copper sleeve of setting in the surface of fire hydrant main part, the surface of heat conduction copper sleeve is coated with black baking finish layer;Stirring component, the stirring component includes the servo motor of installing in the outer surface one side of fire hydrant main part, the output end of servo motor is fixedly provided with gear set. The freeze-proof structure of outdoor fire hydrant, by the setting of stirring component and water baffle protective cover, servo motor drives first bevel gear to rotate, and then drive second bevel gear to rotate, so that stirring vane follows rotation, stirring vane agitates water source in fire hydrant main part, keeps fluidity, avoids freezing, water baffle protective cover protects gear set and stirring vane, avoids the impact force when water on inlet pipe is larger to cause stirring vane deformation damage, influence service life.
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Description

Technical Field

[0001] This utility model relates to the field of fire hydrant technology, and in particular to an antifreeze structure for outdoor fire hydrants. Background Technology

[0002] The main function of fire hydrants is to control combustibles, isolate oxidizers, and eliminate ignition sources. They are divided into indoor fire hydrants and outdoor fire hydrants. Outdoor fire hydrants are prone to freezing in some cold regions, so antifreeze measures are required.

[0003] The anti-freezing structure of an outdoor fire hydrant disclosed in announcement number CN216007134U, although the utility model uses a rotary motor to drive a round rod and a main bevel gear to rotate, the rotation of the main bevel gear drives the rotation of the secondary bevel gear and the rotating shaft, and the rotation of the rotating shaft drives the propeller to agitate the water inside the outdoor fire hydrant body, the light sensor detects that the surrounding environment is dark and causes the lead screw motor to work, the work of the lead screw motor drives the moving rod and the conductive plate to move upward, and the moving conductive plate moves into the power supply groove to power the warning light, thereby making the outdoor fire hydrant anti-freezing structure reduce the probability of pedestrians colliding with the outdoor fire hydrant and reduce its limitations.

[0004] However, the antifreeze structure of this outdoor fire hydrant has the following disadvantages: it is not convenient to protect the propeller, and the water flow from the fire hydrant directly impacts the propeller during use, which can easily cause the blades to deform and affect the service life. In addition, it lacks the heating function for the main body of the fire hydrant, and the antifreeze effect is limited when the outside temperature is very low. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide an antifreeze structure for outdoor fire hydrants, so as to solve the problems mentioned in the background art, such as the inconvenience of protecting the propeller and the lack of heating function for the main body of the fire hydrant.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an anti-freezing structure for an outdoor fire hydrant, comprising a fire hydrant body, a heat-absorbing component, the heat-absorbing component including a heat-conducting copper sleeve disposed on the surface of the fire hydrant body, the surface of the heat-conducting copper sleeve being coated with a black baking paint layer; an agitation component, the agitation component including a servo motor installed on one side of the outer surface of the fire hydrant body, a gear set fixedly disposed at the output end of the servo motor, and agitation blades disposed at the top of the gear set; and a water-blocking protective cover, the water-blocking protective cover being sleeved on the surface of the gear set, with fixing rods disposed on both sides of the outer surface of the water-blocking protective cover, the fixing rods being fixedly connected to the inner wall of the fire hydrant body, and cavities being opened on both sides of the inner wall of the fire hydrant body, with heating elements fixedly disposed inside the cavities.

[0009] As a further embodiment of this utility model, the gear set includes a first bevel gear fixedly disposed at the output end of the servo motor, and a second bevel gear meshing on one side of the first bevel gear. The gear set is used to drive the stirring blade.

[0010] As a further embodiment of this utility model, a support rod is fixedly provided at the bottom of the second bevel gear. The bottom of the support rod is rotatably connected to the inner bottom wall of the water-blocking protective cover, and the support rod is used to support the second bevel gear.

[0011] As a further embodiment of this utility model, a PID temperature controller is electrically connected to one side of the heating element. The PID temperature controller is installed on the outer surface of the fire hydrant body and is used to control the heating temperature of the heating element.

[0012] As a further embodiment of this utility model, a solar panel is installed on the top of the fire hydrant body, a solar charging controller is electrically connected to one side of the solar panel, and a storage battery is electrically connected to one side of the solar charging controller, the storage battery being used for power supply.

[0013] As a further embodiment of this utility model, the surface of both the storage battery and the solar charging controller is fitted with a protective shell, which is installed on the surface of the fire hydrant body and is used to protect the storage battery and the solar charging controller.

[0014] As a further embodiment of this utility model, a motor compartment is installed at the bottom of the outer surface of the fire hydrant body, the servo motor is installed inside the motor compartment, a water inlet pipe is provided through the bottom of the fire hydrant body, and a valve is fixedly installed on the surface of the water inlet pipe for controlling the opening and closing of the water inlet pipe.

[0015] (III) Beneficial Effects

[0016] This utility model provides an antifreeze structure for outdoor fire hydrants, which has the following beneficial effects:

[0017] 1. The antifreeze structure of this outdoor fire hydrant is achieved through the installation of an agitator and a water-blocking protective cover. The servo motor drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, causing the agitator blades to rotate as well. The agitator blades agitate the water source inside the fire hydrant body to maintain its fluidity and prevent freezing. The water-blocking protective cover protects the gear assembly and agitator blades, preventing the agitator blades from being deformed or damaged due to the large impact force when water is supplied to the inlet pipe, thus affecting the service life.

[0018] 2. The antifreeze structure of this outdoor fire hydrant utilizes heat-absorbing components and electric heating elements. The black paint layer passively absorbs external solar heat, which is then conducted through the heat-conducting copper sleeve, thereby increasing the temperature of the fire hydrant body. In addition, the solar panel absorbs solar energy and converts it into electrical energy, which is stored in the battery to power the electric heating elements. The electric heating elements actively heat the fire hydrant body, forming a dual antifreeze mechanism that combines passive heat absorption and active heating, thus improving the reliability of antifreeze protection in low-temperature environments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the agitator assembly and water-blocking protective cover of this utility model;

[0021] Figure 3 This is a schematic diagram of the battery structure of this utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the heat-absorbing component of this utility model;

[0023] Figure 5 This is an enlarged structural diagram of point A in this utility model.

[0024] In the diagram: 1. Fire hydrant body; 2. Heat-absorbing component; 21. Heat-conducting copper sleeve; 22. Black paint layer; 3. Agitator component; 31. Servo motor; 32. Gear set; 321. First bevel gear; 322. Second bevel gear; 33. Agitator blade; 4. Water-blocking protective cover; 5. Fixing rod; 6. Heating element; 7. Supporting rotating rod; 8. Solar panel; 9. Battery; 10. Protective casing; 11. Motor compartment; 12. Water inlet pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1 to 5 This utility model provides a technical solution: an antifreeze structure for an outdoor fire hydrant, including a fire hydrant body 1, a heat-absorbing component 2, the heat-absorbing component 2 including a heat-conducting copper sleeve 21 disposed on the surface of the fire hydrant body 1, the surface of the heat-conducting copper sleeve 21 being coated with a black baking paint layer 22; an agitation component 3, the agitation component 3 including a servo motor 31 installed on one side of the outer surface of the fire hydrant body 1, a gear set 32 ​​fixedly disposed at the output end of the servo motor 31, and an agitation blade 33 disposed at the top of the gear set 32; through the agitation component 3 and the water-blocking protective cover 4, the servo motor 31 drives the first bevel gear 321 to rotate, thereby driving the second bevel gear 322 to rotate, so that the agitation blade 33 rotates accordingly, the agitation blade 33 agitates the water source in the fire hydrant body 1, maintains fluidity, and prevents freezing, the water-blocking protective cover 4 protects the gear set 32 ​​and the agitation blade 33, and prevents the agitation blade 33 from being deformed and damaged due to the large impact force when water is poured into the water inlet pipe 12, thus affecting its service life;

[0027] A water-blocking protective cover 4 is fitted onto the surface of the gear set 32. Fixing rods 5 are provided on both sides of the outer surface of the water-blocking protective cover 4. The fixing rods 5 are fixedly connected to the inner wall of the fire hydrant body 1. Cavities are opened on both sides of the inner wall of the fire hydrant body 1. Heating elements 6 are fixedly installed inside the cavities. Through the arrangement of the heat-absorbing component 2 and the heating elements 6, the black paint layer 22 passively absorbs external solar heat and conducts it to the heat-conducting copper sleeve 21, thereby conducting heat to the fire hydrant body 1 and increasing its temperature. In addition, the solar panel 8 absorbs solar energy and converts it into electrical energy, which is stored in the battery 9 to power the heating elements 6. The heating elements 6 actively heat the fire hydrant body 1, forming a dual anti-freezing mechanism combining passive heat absorption and active heating, improving the reliability of anti-freezing in low-temperature environments.

[0028] The gear set 32 ​​includes a first bevel gear 321 fixedly mounted on the output end of the servo motor 31, and a second bevel gear 322 meshing on one side of the first bevel gear 321.

[0029] With the gear set 32, the servo motor 31 drives the first bevel gear 321 to rotate, which in turn drives the second bevel gear 322 to rotate, causing the stirring blade 33 to rotate as well. The stirring blade 33 stirs the water in the fire hydrant body 1 to maintain its fluidity and prevent it from freezing.

[0030] The bottom of the second bevel gear 322 is fixedly provided with a support rod 7, and the bottom of the support rod 7 is rotatably connected to the inner bottom wall of the water-blocking protective cover 4.

[0031] The support rod 7 serves to support the second bevel gear 322.

[0032] A PID temperature controller is electrically connected to one side of the heating element 6, and the PID temperature controller is installed on the outer surface of the fire hydrant body 1.

[0033] The PID temperature controller is used to control the heating temperature of the heating element 6.

[0034] A solar panel 8 is installed on the top of the fire hydrant body 1. A solar charging controller is electrically connected to one side of the solar panel 8, and a storage battery 9 is electrically connected to one side of the solar charging controller.

[0035] By setting up solar panels 8, solar panels 8 absorb solar energy, convert it into electrical energy, and store it in batteries 9, thus providing power.

[0036] The surface of both the storage battery 9 and the solar charging controller is covered with a protective shell 10, which is installed on the surface of the fire hydrant body 1.

[0037] The protective casing 10 serves to protect the battery 9 and the solar charging controller.

[0038] A motor compartment 11 is installed at the bottom of the outer surface of the fire hydrant body 1. A servo motor 31 is installed inside the motor compartment 11. A water inlet pipe 12 is provided through the bottom of the fire hydrant body 1. A valve is fixedly installed on the surface of the water inlet pipe 12.

[0039] The motor compartment 11 serves to protect the servo motor 31, while the water inlet pipe 12 facilitates water intake.

[0040] In this invention, the working steps of the device are as follows:

[0041] First step: Servo motor 31 drives the first bevel gear 321 to rotate, which in turn drives the second bevel gear 322 to rotate, causing the stirring blade 33 to rotate accordingly. The stirring blade 33 stirs the water in the fire hydrant body 1 to maintain fluidity and prevent freezing.

[0042] The second step: The water-blocking protective cover 4 protects the gear set 32 ​​and the stirring blade 33 to prevent the stirring blade 33 from being deformed and damaged due to the large impact force when water is poured into the water inlet pipe 12, which would affect its service life.

[0043] The third step: The black paint layer 22 passively absorbs external sunlight and heat, which is conducted to the heat-conducting copper sleeve 21, thereby conducting heat to the fire hydrant body 1 and increasing its temperature. In addition, the solar panel 8 absorbs solar energy and converts it into electrical energy, which is stored in the battery 9 to power the heating element 6. The heating element 6 actively heats the fire hydrant body 1, forming a dual anti-freeze mechanism combining passive heat absorption and active heating, improving anti-freeze reliability in low-temperature environments. It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. The technical details of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art, understanding the principle of the above utility model, can clearly understand the specific structure of its power mechanism, power supply system, and control system. The control method in the application document is automatic control via a controller, and the controller's control circuit can be implemented through simple programming by those skilled in the art.

[0044] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An antifreeze structure for an outdoor fire hydrant, comprising a fire hydrant body (1), characterized in that: Heat absorption component (2), the heat absorption component (2) includes a heat-conducting copper sleeve (21) disposed on the surface of the fire hydrant body (1), the surface of the heat-conducting copper sleeve (21) is coated with a black baking paint layer (22). The stirring assembly (3) includes a servo motor (31) installed on one side of the outer surface of the fire hydrant body (1). A gear set (32) is fixedly provided at the output end of the servo motor (31), and a stirring blade (33) is provided on the top of the gear set (32). Water-blocking protective cover (4) is sleeved on the surface of gear set (32). Fixing rods (5) are provided on both sides of the outer surface of the water-blocking protective cover (4). The fixing rods (5) are fixedly connected to the inner wall of the fire hydrant body (1). Holes are opened on both sides of the inner wall of the fire hydrant body (1). Electric heating elements (6) are fixedly installed inside the cavities.

2. The anti-freezing structure of an outdoor fire hydrant according to claim 1, characterized in that: The gear set (32) includes a first bevel gear (321) fixedly disposed at the output end of the servo motor (31), and a second bevel gear (322) meshes with one side of the first bevel gear (321).

3. The anti-freezing structure of an outdoor fire hydrant according to claim 2, characterized in that: The bottom of the second bevel gear (322) is fixedly provided with a support rod (7), and the bottom of the support rod (7) is rotatably connected to the inner bottom wall of the water-blocking protective cover (4).

4. The anti-freezing structure of an outdoor fire hydrant according to claim 1, characterized in that: One side of the heating element (6) is electrically connected to a PID temperature controller, which is installed on the outer surface of the fire hydrant body (1).

5. The anti-freezing structure of an outdoor fire hydrant according to claim 1, characterized in that: A solar panel (8) is installed on the top of the fire hydrant body (1). A solar charging controller is electrically connected to one side of the solar panel (8), and a storage battery (9) is electrically connected to one side of the solar charging controller.

6. The anti-freezing structure of an outdoor fire hydrant according to claim 5, characterized in that: The surface of the battery (9) and the solar charging controller are both covered with a protective shell (10), which is installed on the surface of the fire hydrant body (1).

7. The anti-freezing structure of an outdoor fire hydrant according to claim 1, characterized in that: A motor compartment (11) is installed at the bottom of the outer surface of the fire hydrant body (1). The servo motor (31) is installed inside the motor compartment (11). A water inlet pipe (12) is provided through the bottom of the fire hydrant body (1). A valve is fixedly installed on the surface of the water inlet pipe (12).

Citation Information

Patent Citations

  • Anti-freezing structure of outdoor fire hydrant

    CN216007134U