Fire hose reel capable of preventing internal moisture
The moisture-proof system of the fire hose reel is automatically adjusted by a humidity sensor and a sealed drying mechanism, which solves the problems of energy waste and incomplete moisture-proofing caused by manual drying in the existing technology, and achieves a highly efficient and energy-saving moisture-proofing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU YUNHANG FIRE FIGHTING EQUIP CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-12
AI Technical Summary
Existing fire hose reel moisture-proof systems require manual activation of the blower, which cannot dynamically adjust according to the humidity inside the casing, resulting in energy waste or incomplete moisture protection.
A humidity sensor monitors the humidity inside the chamber. Combined with a sealed drying mechanism and an initial moisture absorption component, the drying process is automatically adjusted. This includes an electric push rod driving the seal to slide and achieve a seal. The drying component includes a heating rod and a fan. Directional hot air circulation drying is achieved through a through slot, and the chamber is sealed for protection when not in operation.
It achieves automatic drying adjustment based on humidity, avoids energy waste, extends equipment life, and improves moisture-proof efficiency. The double-sealed design blocks moisture intrusion, ensuring that the inside of the equipment is dry and clean.
Smart Images

Figure CN224345348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection technology, and in particular to a fire hose reel that can prevent internal moisture from getting in. Background Technology
[0002] Fire hose reels, as an important component of building fire protection systems, are mainly used for quickly deploying fire hoses and spraying extinguishing agents. Their moisture-proof performance directly affects the equipment's lifespan and emergency reliability. Traditional fire hose reel boxes are prone to corrosion and hose aging due to residual water stains on the hoses or ambient humidity. Therefore, moisture-proof design has become a key focus in the industry. In existing technologies, some solutions achieve moisture-proofing through drainage structures (such as baffles and drain pipes) combined with a blower (such as the "Fire Hose Reel that can prevent internal moisture" disclosed in CN221286757U). This solution collects and discharges residual water through baffles, and combines this with a blower to accelerate drying, thus improving the moisture problem to some extent.
[0003] However, the above solution still has the following shortcomings when implemented:
[0004] This solution requires manual activation of the blower, which cannot be dynamically adjusted according to the humidity inside the chamber. It often results in energy waste or incomplete moisture prevention due to excessive dryness or failure to activate in time.
[0005] Therefore, we propose a fire hose reel that can prevent internal moisture from getting in. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the need to manually turn on the blower, the inability to dynamically adjust according to the humidity inside the chamber, and the resulting waste of energy or incomplete moisture prevention due to excessive dryness or failure to start in time.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A fire hose reel designed to prevent internal moisture absorption includes:
[0009] The box is fixedly mounted on the supporting wall and has an internal storage cavity;
[0010] A sealing groove is formed in the inner wall of the front of the box, and a sealing gasket is provided on its inner wall.
[0011] The door panel is located on the front of the box, and a sealing plug is provided on its back side wall;
[0012] A humidity sensor is installed in the inner wall of the enclosure to monitor the humidity inside the enclosure.
[0013] A sealed drying mechanism is located at the bottom of the chamber and includes an electric push rod, a sealing element, a support element, and a drying assembly. The drying assembly is used to dry the cavity inside the chamber. The electric push rod is fixedly installed on the right side wall of the chamber and is used to drive the sealing element to slide on the support element, thereby achieving sealing when the drying assembly is not in use.
[0014] The initial moisture absorption component, located to the right of the humidity sensor, is used to absorb moisture inside the chamber.
[0015] As a preferred embodiment of this utility model, the door panel is inserted into the sealing groove of the box body through a sealing plug to form a seal.
[0016] As a preferred embodiment of this utility model, it also includes:
[0017] The fire hose reel itself is located inside the housing;
[0018] The controller is located below the humidity sensor and is electrically connected to the sealed drying mechanism and the humidity sensor.
[0019] A through-slot, located at the bottom of the chamber, is used to install the drying components.
[0020] As a preferred embodiment of this utility model, the drying component includes:
[0021] Several heating rods are installed inside the through slot to heat the surrounding air;
[0022] Two fans, mounted below several heating rods, are used to blow heated air into the placement cavity of the enclosure.
[0023] As a preferred embodiment of this utility model, the sealing element includes:
[0024] The protective shell is fixedly installed at the bottom of the box. It gradually narrows from the top to the bottom and protrudes outward at the bottom to cover the drying components.
[0025] The sealing seat has sealing cavities around its top, which are used to connect with the protrusions at the bottom of the protective housing, thereby achieving connection and sealing.
[0026] Two connecting blocks are fixedly installed on the two side walls of the sealing seat, respectively;
[0027] One of the connecting blocks is fixedly mounted on the output end of the electric actuator.
[0028] As a preferred embodiment of this utility model, the support member includes:
[0029] The mounting bracket is fixedly installed on the left side wall of the enclosure.
[0030] The linear optical axis is located inside the fixed frame and is slidably connected to another connecting block.
[0031] As a preferred embodiment of this utility model, the initial moisture-absorbing component includes:
[0032] The placement base is fixedly installed inside the box.
[0033] Several desiccants are placed inside the placement base to absorb moisture.
[0034] Several ventilation slots are located at the bottom of the base.
[0035] Compared with the prior art, the beneficial effects of this utility model are:
[0036] In this invention, a desiccant continuously adsorbs moisture from the chamber under normal conditions. The sealed drying mechanism is automatically triggered only when the humidity exceeds the standard, thus avoiding energy waste. When the drying components are not in operation, an electric push rod drives the sealing seat to close with the protective shell, preventing moisture and dust from entering, extending the life of the heating rod and fan, and preventing moisture from entering the chamber. During operation, directional hot air circulation improves drying efficiency. At the same time, the cooperation between the door panel and the sealing groove, as well as the double sealing design of the drying mechanism, block the path of moisture intrusion. Attached Figure Description
[0037] Figure 1 The present invention provides a schematic diagram of the main structure of a fire hose reel that can prevent internal moisture from entering.
[0038] Figure 2 A schematic diagram showing the unfolded sealing seat of a fire hose reel that can prevent internal moisture from entering, provided by this utility model;
[0039] Figure 3 A schematic cross-sectional view of the main body of a fire hose reel that can prevent internal moisture from being absorbed by the present invention;
[0040] Figure 4 A schematic diagram of the internal structure of a fire hose reel that can prevent internal moisture from being absorbed by the present invention;
[0041] Figure 5 A schematic diagram of a door for a fire hose reel that can prevent internal moisture from getting in, provided by this utility model.
[0042] Legend: 10. Box body; 20. Sealing groove; 30. Door panel; 40. Sealing plug block; 50. Fire hose reel body; 60. Humidity sensor; 70. Controller; 80. Through groove; 90. Sealed drying mechanism; 901. Protective housing; 902. Fan; 903. Heating rod; 904. Sealing seat; 905. Connecting block; 906. Electric push rod; 907. Fixing frame; 908. Linear optical axis; 100. Initial moisture absorption component; 1001. Placement seat; 1002. Desiccant; 1003. Ventilation groove. Detailed Implementation
[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all 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 protection scope of the present utility model.
[0044] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.
[0045] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example
[0047] like Figure 1-5As shown, this utility model provides a technical solution: a fire hose reel that can prevent internal moisture, comprising: a housing 10, fixedly mounted on a supporting wall and having a placement cavity inside; a sealing groove 20, formed in the inner wall of the front of the housing 10, with a sealing gasket provided on its inner wall; a door panel 30, disposed on the front of the housing 10, with a sealing plug 40 provided on its back side wall; and a humidity sensor 60, disposed in the inner wall inside the placement cavity of the housing 10, for monitoring the humidity inside the placement cavity.
[0048] A sealed drying mechanism 90 is located at the bottom of the housing 10. It includes an electric push rod 906, a sealing element, a support element, and a drying assembly. The drying assembly is used to dry the cavity inside the housing 10. The electric push rod 906 is fixedly installed on the right side wall of the housing 10 and is used to drive the sealing element to slide on the support element, thereby achieving sealing when the drying assembly is not in use.
[0049] The initial moisture absorption component 100 is located to the right of the humidity sensor 60 and is used to absorb moisture in the placement cavity of the box 10.
[0050] Under normal conditions, the desiccant 1002 in the initial moisture absorption component 100 continuously absorbs moisture inside the chamber 10 through the ventilation slot 1003, maintaining the humidity within a safe threshold. When the desiccant becomes saturated and causes the humidity to rise, the humidity sensor 60 transmits a signal to the controller 70, triggering the electric push rod 906 to open the seal, and the drying component starts to dry the inside of the chamber. After drying is completed, the electric push rod 906 drives the seal to close, preventing external moisture from entering and dust from contaminating the drying component.
[0051] The door panel 30 is inserted into the sealing groove 20 of the housing 10 through the sealing plug 40 to form a seal.
[0052] When the door panel 30 is closed, the sealing plug 40 is precisely inserted into the sealing groove 20. The sealing gasket in the groove is deformed by pressure, filling the gap between the plug and the groove wall, forming a physical sealing barrier to prevent external humid air from entering the placement cavity through the joint between the door panel and the box. Combined with the secondary sealing of the sealed drying mechanism 90, the overall moisture-proof performance is further improved.
[0053] Also includes:
[0054] The fire hose reel body 50 is installed inside the housing 10;
[0055] The controller 70 is located below the humidity sensor 60 and is electrically connected to the sealed drying mechanism 90 and the humidity sensor 60.
[0056] A through slot 80 is formed at the bottom inside the housing 10 for installing the drying components.
[0057] The controller 70 receives humidity data from the humidity sensor 60 in real time. When the humidity exceeds the preset threshold, the controller 70 sends a signal to the electric push rod 906 to expose and start the drying component heating rod 903 and fan 902. The generated hot air enters the placement cavity of the housing 10 through the through slot 80 to dry the fire hose reel body 50 and hose. After drying, the controller 70 controls the electric push rod 906 to drive the seal to reset.
[0058] The drying components include:
[0059] Several heating rods 903 are installed inside the through slot 80 to heat the surrounding air;
[0060] Two fans 902 are installed below several heating rods 903 to blow heated air into the placement cavity of the housing 10.
[0061] After the fan 902 is started, it draws in outside air from the housing 10, which is heated by the heating rod 903 to form hot air. The hot air is then blown directionally into the placement cavity through the through slot 80. The hot air circulates in the cavity, accelerating the evaporation of moisture from the surface of the fire hose reel body 50 and the hose. After drying is completed, the fan 902 and the heating rod 903 are turned off simultaneously, and the electric push rod 906 drives the seal to close, sealing the heating rod 903 and the fan 902 inside the protective housing 901 to prevent moisture and dust corrosion.
[0062] The seals include:
[0063] The protective housing 901 is fixedly installed at the bottom of the box 10. Its top gradually narrows towards the bottom and protrudes outward at the bottom, thereby covering the drying components.
[0064] The sealing seat 904 has sealing cavities around its top, which are used to connect with the protrusion at the bottom of the protective housing 901, thereby achieving connection and sealing.
[0065] Two connecting blocks 905 are fixedly installed on the two side walls of the sealing seat 904, respectively;
[0066] One of the connecting blocks 905 is fixedly mounted on the output end of the electric push rod 906.
[0067] When the drying assembly needs to be activated, the electric push rod 906 extends, driving the sealing seat 904 to slide downward along the linear optical axis 908 via the connecting block 905. This separates the sealing cavity of the sealing seat 904 from the protruding part at the bottom of the protective housing 901, exposing the through groove 80 and the drying assembly. After drying is completed, the electric push rod 906 retracts, pulling the sealing seat 904 upward to reset. The protruding part at the bottom of the protective housing 901 inserts into the sealing cavity of the sealing seat 904, forming a tight seal to prevent external moisture from entering the housing 10 through the through groove 80.
[0068] The support components include:
[0069] The mounting bracket 907 is fixedly installed on the left side wall of the housing 10;
[0070] The linear optical axis 908 is located inside the fixing frame 907 and is slidably connected to another connecting block 905.
[0071] The linear optical axis 908 is fixed inside the fixing frame 907, providing guiding support for the sliding of the sealing seat 904. When the electric push rod 906 drives the connecting block 905, the sealing seat 904 slides smoothly on the linear optical axis 908 through the connecting block 905 on the other side, ensuring the docking accuracy between the sealing seat 904 and the protective housing 901, avoiding sealing failure due to sliding offset, and ensuring the sealing reliability of the drying component in non-working state.
[0072] The initial moisture-absorbing component 100 includes:
[0073] The placement base 1001 is fixedly installed inside the housing 10;
[0074] Several desiccants 1002 are placed inside the placement base 1001 to adsorb moisture;
[0075] Several ventilation slots 1003 are provided at the bottom of the placement base 1001.
[0076] The placement seat 1001 is connected to the placement cavity of the cabinet 10 through the ventilation slot 1003, allowing moisture to freely enter the placement seat 1001. The desiccant 1002 absorbs moisture through physical adsorption or chemical reaction, keeping the humidity inside the cabinet 10 at a low level. When the desiccant 1002 is saturated, its moisture absorption capacity decreases, and the humidity inside the cabinet 10 gradually increases. The humidity sensor 60 detects the humidity change and triggers the start of the sealed drying mechanism 90. At the same time, the desiccant 1002 can be replaced to restore the initial moisture absorption capacity.
[0077] Workflow
[0078] I. Initial moisture absorption priority during the normal moisture-proof stage
[0079] Initial moisture absorption component operation: When the housing 10 is closed, the desiccant 1002 in the initial moisture absorption component 100 is connected to the housing 10 placement cavity through the ventilation groove 1003 at the bottom of the placement seat 1001, continuously absorbing internal moisture and maintaining the humidity within a preset safety threshold such as 40%-60%RH.
[0080] Real-time humidity monitoring: Humidity sensor 60 collects humidity data inside the enclosure 10 in real time and transmits it to controller 70 for comparison and analysis.
[0081] II. Intelligent response triggered during the drying phase when humidity exceeds the standard.
[0082] Threshold judgment and signal triggering: When the desiccant 1002 is saturated and the humidity exceeds the threshold, the controller 70 sends a start signal to the electric push rod 906.
[0083] The sealed drying mechanism is activated:
[0084] The output end of the electric push rod 906 extends and drives the sealing seat 904 to slide downward along the linear optical axis 908 through the connecting block 905, so that the sealing cavity at the top of the sealing seat 904 is separated from the protruding part at the bottom of the protective housing 901, exposing the through groove 80 and the internal drying components.
[0085] The controller 70 synchronously starts the drying component: the fan 902 draws in outside air, which is heated by the heating rod 903 to form hot air, which is then blown directionally into the placement cavity of the box 10 through the through slot 80 to circulate and dry the fire hose reel body 50 and the hose.
[0086] Hot air circulation drying: Hot air flows inside the chamber, accelerating the evaporation of moisture on the surface of the hose. The moisture is discharged with the airflow or partially adsorbed by the unsaturated desiccant 1002.
[0087] III. Energy-saving protection during the drying completion and sealing reset stage
[0088] Humidity drop and shutdown signal: When the humidity sensor 60 detects that the humidity has dropped below the threshold, the controller 70 sends a reset signal to the electric push rod 906 and shuts down the heating rod 903 and the fan 902.
[0089] Sealing mechanism closure protection:
[0090] The electric push rod 906 retracts, pulling the sealing seat 904 upward along the linear optical axis 908 to reset, so that the protrusion at the bottom of the protective housing 901 is precisely inserted into the sealing cavity of the sealing seat 904, forming a tight seal and blocking the communication between the through groove 80 and the outside.
[0091] The sealing plug 40 of the door panel 30 cooperates with the sealing groove 20 of the box body 10, and together with the sealing gasket, forms a first-level physical seal, which, together with the second-level seal of the drying mechanism, constitutes a double moisture barrier.
[0092] IV. Maintenance and Continuous Moisture Prevention Stage
[0093] Desiccant replacement: Replace the saturated desiccant 1002 periodically to restore the initial moisture absorption capacity of the moisture absorption component 100.
[0094] Drying component maintenance: When the heating rod 903 or fan 902 needs maintenance, the electric push rod 906 can be manually driven to open the sealing seat 904, and the component can be cleaned or replaced. After maintenance, the seal can be closed again.
[0095] 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. A fire hose reel that prevents internal moisture from entering, characterized in that, include: The box (10) is fixedly installed on the supporting wall and has a placement cavity inside; A sealing groove (20) is formed in the inner wall of the front of the box (10), and a sealing gasket is provided on its inner wall; The door panel (30) is located on the front of the box body (10), and a sealing plug block (40) is provided on its back side wall. A humidity sensor (60) is installed in the inner wall of the placement cavity of the box (10) for monitoring the humidity inside the placement cavity; A sealed drying mechanism (90) is provided at the bottom of the box (10). It includes an electric push rod (906), a seal, a support, and a drying assembly. The drying assembly is used to dry the cavity of the box (10). The electric push rod (906) is fixedly provided on the right side wall of the box (10) and is used to drive the seal to slide on the support, thereby achieving sealing when the drying assembly is not in use. The initial moisture absorption component (100) is located to the right of the humidity sensor (60) and is used to absorb moisture in the placement cavity of the box (10).
2. A fire hose reel that prevents internal moisture absorption according to claim 1, characterized in that, The door panel (30) is inserted into the sealing groove (20) of the box body (10) through the sealing plug (40) to form a seal.
3. A fire hose reel that prevents internal moisture absorption according to claim 2, characterized in that, Also includes: The fire hose reel body (50) is located inside the housing (10); The controller (70) is located below the humidity sensor (60) and is electrically connected to the sealed drying mechanism (90) and the humidity sensor (60); A through slot (80) is provided at the bottom inside the housing (10) for installing the drying components.
4. A fire hose reel that prevents internal moisture absorption according to claim 3, characterized in that, The drying assembly includes: Several heating rods (903) are installed inside the through slot (80) for heating the surrounding air; Two fans (902) are installed below several heating rods (903) to blow heated air into the placement cavity of the housing (10).
5. A fire hose reel that prevents internal moisture absorption according to claim 4, characterized in that, The sealing element includes: The protective housing (901) is fixedly installed at the bottom of the box (10), and its top gradually narrows towards the bottom and protrudes outward at the bottom, thereby covering the drying components. The sealing seat (904) has a sealing cavity around its top, which is used to connect with the protrusion at the bottom of the protective housing (901) to achieve connection and sealing. Two connecting blocks (905) are fixedly installed on the two side walls of the sealing seat (904); One of the connecting blocks (905) is fixedly mounted on the output end of the electric push rod (906).
6. A fire hose reel that prevents internal moisture from accumulating, as described in claim 5, is characterized in that... The support member includes: The mounting bracket (907) is fixedly installed on the left side wall of the housing (10); The linear optical axis (908) is located inside the fixing frame (907) and is slidably connected to another connecting block (905).
7. A fire hose reel that prevents internal moisture absorption according to claim 6, characterized in that, The initial moisture-absorbing component (100) includes: The placement base (1001) is fixedly installed inside the box (10); Several desiccants (1002) are placed inside the placement base (1001) to adsorb moisture; Several ventilation slots (1003) are provided at the bottom of the placement base (1001).