Butt joint device for fan coil
The double-threaded structure and multi-layer sealing design solve the problem of loosening of the hot water pipe interface of the fan coil unit, achieving stable connection and sealing, and ensuring the normal operation of the system under high pressure and high temperature environment.
Patent Information
- Application Number
- CN202423075932.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The existing connection method between the hot water pipe interface of the fan coil unit and the connecting hose is prone to loosening, which leads to a decrease in sealing performance, which may cause hot water leakage, increase energy consumption and safety hazards.
The system employs a double-threaded structure and a combination of sealing rings, along with a compression chamber, connecting spring, and reinforcing retaining ring, to form a multi-layered seal, ensuring the stability and tightness of the connection.
It improves the strength and sealing performance of the connection, prevents hot or cold water leakage, ensures normal system operation, and reduces the risk of leakage, especially effective in high pressure or high temperature environments.
Smart Images
Figure CN223610223U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fan -coil connection technical field, concretely is a fan -coil butt joint device. BACKGROUND
[0002] Fan -coil is water system central air conditioning terminal equipment, and the hot water pipe interface of fan -coil is the key part between connecting fan -coil and hot water supply system, usually is made of high quality metal or plastic to ensure that it can bear high temperature and pressure, and the connecting hose is a flexible pipe for providing flexible connection between the hot water pipe interface and the hot water supply system, and the hot water pipe interface and the connecting hose usually adopt threaded connection, flange connection or quick connector connection mode, these connection modes have the characteristics of simple installation, convenient disassembly, good sealing performance. The connecting hose has the characteristics of good flexibility, corrosion resistance, high temperature resistance, etc. It can adapt to various complex installation environments and temperature changes. In winter or when heating is needed, hot water flows into the heat exchanger of the fan -coil through the hot water pipe interface and the connecting hose, exchanges heat with the air passing through the fan -coil, and transfers heat to the air, thereby heating the room.
[0003] The existing hot water pipe interface of fan -coil is only fixed and sealed by single layer when connecting with the connecting hose, which causes the hot water pipe interface of fan -coil to loosen directly with the connecting hose after long time use. Once loosened, the sealing performance between the hot water pipe interface and the connecting hose will be seriously affected. Hot water leakage will lead to system efficiency decline, increase energy consumption, and the leaked water may damage surrounding equipment or cause safety hazards. In extreme cases, leakage may cause fire or electric shock. Single layer sealing may not completely block the erosion of pressure, temperature and chemicals in hot water on the connection, and the sealing material may fail due to aging, corrosion, etc. after long time running, resulting in sealing performance decline. SUMMARY
[0004] The utility model provides a kind of fan -coil butt joint device, with the advantage that the hot water pipe interface and cold water pipe interface of fan -coil are stably sealed and butt joint, to solve the problem that the hot water pipe interface and cold water pipe interface of fan -coil are loosened after long time use.
[0005] In order to realize the purpose of stable sealing butt joint of hot water pipe interface and cold water pipe interface of fan coil, the utility model provides the following technical scheme: a fan coil butt joint device, including fan coil shell, the outer surface of fan coil shell is installed with hot water pipe interface, the outer surface of fan coil shell is installed with cold water pipe interface, the outer surface of hot water pipe interface and the outer surface of cold water pipe interface are equipped with first outer thread, the outer surface of hot water pipe interface and the outer surface of cold water pipe interface are installed with sealing ring, the outer surface of hot water pipe interface and the outer surface of cold water pipe interface are installed with connecting fixed component, the connecting fixed component includes connecting hose and first inner thread groove, the first inner thread groove is opened in the inside of hot water pipe interface, the connecting hose is movably installed on the outer surface of hot water pipe interface, the outer surface of connecting hose is equipped with second outer thread, the inner surface of connecting hose is equipped with second inner thread groove.
[0006] As a preferred technical scheme of the utility model, the inner wall of the second inner thread groove is movably contacted with the outer surface of the first outer thread, the inner wall of the first inner thread groove is movably contacted with the outer surface of the second outer thread, and the outer surface of the sealing ring is movably contacted with the outer surface of the connecting hose.
[0007] As a preferred technical scheme of the utility model, the connecting fixed component further includes extrusion cavity and a plurality of connecting springs, the extrusion cavity is opened in the inside of the fan coil shell, and the plurality of connecting springs are evenly installed on the inner wall of the extrusion cavity.
[0008] As a preferred technical scheme of the utility model, the outer surface of the plurality of connecting springs is installed with sealing ring, the outer surface of the sealing ring is movably contacted with the outer surface of the connecting hose, and the sealing ring is provided with inclined surface.
[0009] As a preferred technical scheme of the utility model, the outer surface of the fan coil shell is provided with two limiting slide cavities, and the inner wall of the two limiting slide cavities is installed with reinforcing snap ring.
[0010] As a preferred technical scheme of the utility model, the inside of the two reinforcing snap rings is opened with through groove, the inner wall of the through groove is movably installed with bolt, and the outer surface of the bolt is movably installed with nut.
[0011] Compared with the prior art, the utility model provides a fan coil butt joint device, which has the following beneficial effects:
[0012] The fan-coil butt joint device, through the connection of the double-thread structure of the connecting hose and the hot water pipe interface, makes the connection between the connecting hose and the hot water pipe interface and the cold water pipe interface more firm, the double-thread structure can better fill the gap between the threads, form a more tight seal, help to prevent hot water or cold water from leaking during transmission, ensure the normal operation of the fan-coil system, and the surface of one end of the connecting hose is extruded and fixed with the sealing ring, further enhancing the sealing performance of the connection, and the sealing ring can be extruded and fixed on the surface of one end of the connecting hose, forming a reliable sealing barrier to prevent water leakage.
[0013] The fan-coil butt joint device, through the connection of the double-thread structure of the connecting hose and the hot water pipe interface, makes the connection between the connecting hose and the hot water pipe interface and the cold water pipe interface more firm, the double-thread structure can better fill the gap between the threads, form a more tight seal, help to prevent hot water or cold water from leaking during transmission, ensure the normal operation of the fan-coil system, and the surface of one end of the connecting hose is extruded and fixed with the sealing ring, further enhancing the sealing performance of the connection, and the sealing ring can be extruded and fixed on the surface of one end of the connecting hose, forming a reliable sealing barrier to prevent water leakage. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a whole structure schematic view of the utility model;
[0015] Figure 2 It is a whole structure schematic view of the utility model connecting hose;
[0016] Figure 3 It is a hot water pipe interface internal structure schematic view of the utility model;
[0017] Figure 4 It is another view internal structure schematic view of the utility model hot water pipe interface.
[0018] In the drawing: 1, fan-coil shell; 2, hot water pipe interface; 3, connecting hose; 4, first outer thread; 5, first inner thread groove; 6, second outer thread; 7, second inner thread groove; 8, sealing ring; 9, extrusion cavity; 10, connecting spring; 11, sealing ring; 12, limit sliding cavity; 13, reinforcing clasp; 14, through slot; 15, bolt; 16, nut; 17, cold water pipe interface; 18, inclined surface. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0020] Please refer to Figures 1-4The utility model discloses a fan -coil butt joint device, including fan -coil casing 1, the outer side surface of fan -coil casing 1 is installed with hot -water pipe interface 2, the outer side surface of fan -coil casing 1 is installed with cold -water pipe interface 17, the outer side surface of hot -water pipe interface 2 and the outer side surface of cold -water pipe interface 17 all are equipped with first outer thread 4, the outer side surface of hot -water pipe interface 2 and the outer side surface of cold -water pipe interface 17 all are installed with sealing washer 8, the outer side surface of hot -water pipe interface 2 and the outer side surface of cold -water pipe interface 17 all are installed with connecting fixed assembly, and connecting fixed assembly includes connecting hose 3 and first inner thread groove 5, and first inner thread groove 5 is set up in the inside of hot -water pipe interface 2, and connecting hose 3 is movably installed in the outer side surface of hot -water pipe interface 2, the outer side surface of connecting hose 3 is equipped with second outer thread 6, the inner side surface of connecting hose 3 is equipped with second inner thread groove 7, and the inner wall of second inner thread groove 7 is movably contacted with the outer side surface of first outer thread 4, and the inner wall of first inner thread groove 5 is movably contacted with the outer side surface of second outer thread 6, and the outer side surface of sealing washer 8 is movably contacted with the outer side surface of connecting hose 3, and the second inner thread groove 7 of connecting hose 3 inner side corresponds the first outer thread 4 of hot -water pipe interface 2 outer side, make connecting hose 3 pass through double thread structure and be connected with hot -water pipe interface 2, make connecting hose 3 and the connection between hot -water pipe interface 2 and cold -water pipe interface 17 be more firm, and it is difficult to appear loose or leak, and double thread structure can better fill the gap between thread, form more closely sealed, help to prevent hot water or cold water in the transmission process leak, ensure the normal operation of fan -coil system, and double thread structure makes the connecting part can bear greater pressure, improve the pressure-bearing capacity of whole connecting system, and one end surface of connecting hose 3 is extruded fixed to sealing washer 8, further strengthen the sealing performance of connection, and sealing washer 8 can be extruded fixed in the one end surface of connecting hose 3, form reliable sealing barrier, prevent water leakage.
[0021] The connecting and fixing assembly further comprises an extrusion cavity 9 and a plurality of connecting springs 10, the extrusion cavity 9 is arranged in the inside of the fan coil casing 1, the plurality of connecting springs 10 are evenly arranged at the inner wall of the extrusion cavity 9, the outer side surface of the plurality of connecting springs 10 is provided with a sealing ring 11, the outer side surface of the sealing ring 11 is in movable contact with the outer side surface of the connecting hose 3, the sealing ring 11 is provided with an inclined surface 18, the outer side surface of the fan coil casing 1 is provided with two limiting sliding cavities 12, the two limiting sliding cavities 12 are both provided with a reinforcing clasp 13 at the inner wall, the two reinforcing clasps 13 are both provided with a through slot 14 in the inside, the through slot 14 is movably provided with a bolt 15 at the inner wall, the bolt 15 is movably provided with a nut 16 at the outer side surface, the sealing ring 11 extrudes the connecting spring 10 in the extrusion cavity 9, and the connecting spring 10 has elastic deformation, so that the two sealing rings 11 perform secondary sealing treatment on the connecting hose 3, further enhance the sealing effect, greatly reduce the risk of leakage, especially in high pressure or high temperature environment, the close cooperation of the sealing ring 11 and the connecting spring 10 ensures that the fluid will not leak from the connecting part, and the reinforcing clasp 13 moves in the limiting sliding cavity 12, the bolt 15 is inserted through the through slot 14 of the reinforcing clasp 13, and the two reinforcing clasps 13 are fixed through the nut 16, so that the connecting hose 3 is stably fixed outside the hot water pipe interface 2, further enhancing the firmness of the connection, preventing the connecting hose 3 from loosening or falling off during use, and the tightening effect of the reinforcing clasp 13 helps to prevent the gap between the connecting hose 3 and the hot water pipe interface 2, thereby reducing the risk of leakage.
[0022] The working principle and use process of the utility model: when the hot water pipe interface 2 and the cold water pipe interface 17 outside the fan coil casing 1 need to be respectively butt-jointed, the two connecting hoses 3 are correspondingly connected on the hot water pipe interface 2 and the cold water pipe interface 17, the second outer thread 6 outside the connecting hose 3 corresponds the first inner thread groove 5 in the inside of the fan coil casing 1, and the second inner thread groove 7 inside the connecting hose 3 corresponds the first outer thread 4 outside the hot water pipe interface 2, so that the connecting hose 3 is connected with the hot water pipe interface 2 through the double thread structure, the connection between the connecting hose 3 and the hot water pipe interface 2 and the cold water pipe interface 17 is more firm, and is not easy to loosen or leak, the double thread structure can better fill the gap between threads, form a more tight seal, help to prevent hot water or cold water from leaking during transmission, ensure the normal operation of the fan coil system, the double thread structure makes the connecting part can withstand greater pressure, improves the pressure-bearing capacity of the whole connecting system, and one end surface of the connecting hose 3 extrudes and fixes the sealing ring 8, further enhances the sealing performance of the connection, the sealing ring 8 can be extruded and fixed on the one end surface of the connecting hose 3, forming a reliable sealing barrier to prevent water leakage.
[0023] And when the connecting hose 3 is inserted with double thread rotation, the connecting hose 3 synchronously extrudes the inclined surface 18 outside the sealing ring 11, so that the sealing ring 11 extrudes the connecting spring 10 in the extrusion cavity 9, and the connecting spring 10 has elastic deformation, so that the two sealing rings 11 perform secondary sealing treatment on the connecting hose 3, further enhancing the sealing effect and greatly reducing the risk of leakage, especially in high pressure or high temperature environment, the close cooperation of the sealing ring 11 and the connecting spring 10 ensures that the fluid will not leak from the connection, and through the movement of the reinforcing clasp 13 in the limiting sliding cavity 12, through the through slot 14 of the reinforcing clasp 13, the insertion of the bolt 15, and then the fixing of the two reinforcing clasps 13 through the nut 16, so that the connecting hose 3 is stably fixed outside the hot water pipe interface 2, further enhancing the firmness of the connection, preventing the connecting hose 3 from loosening or falling off during use, and the tightening effect of the reinforcing clasp 13 helps to prevent the gap between the connecting hose 3 and the hot water pipe interface 2, thereby reducing the risk of leakage.
[0024] It should be noted that in this document, such as the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.
[0025] Although the embodiments of the present application have been shown and described, it is understood by those skilled in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A fan coil unit connection device, comprising a fan coil unit housing (1), wherein a hot water pipe interface (2) is installed on the outer surface of the fan coil unit housing (1), and a cold water pipe interface (17) is installed on the outer surface of the fan coil unit housing (1), characterized in that: The outer surface of the hot water pipe interface (2) and the outer surface of the cold water pipe interface (17) are both provided with a first external thread (4). The outer surface of the hot water pipe interface (2) and the outer surface of the cold water pipe interface (17) are both provided with a sealing ring (8). The outer surface of the hot water pipe interface (2) and the outer surface of the cold water pipe interface (17) are both provided with a connecting and fixing component. The connecting and fixing component includes a connecting hose (3) and a first internal thread groove (5). The first internal thread groove (5) is opened inside the hot water pipe interface (2). The connecting hose (3) is movably installed on the outer surface of the hot water pipe interface (2). The outer surface of the connecting hose (3) is provided with a second external thread (6). The inner surface of the connecting hose (3) is provided with a second internal thread groove (7).
2. The fan coil unit docking device according to claim 1, characterized in that: The inner wall of the second internal thread groove (7) is in contact with the outer surface of the first external thread (4), the inner wall of the first internal thread groove (5) is in contact with the outer surface of the second external thread (6), and the outer surface of the sealing ring (8) is in contact with the outer surface of the connecting hose (3).
3. A fan coil unit docking device according to claim 2, characterized in that: The connecting and fixing assembly also includes a squeezing chamber (9) and several connecting springs (10). The squeezing chamber (9) is opened inside the fan coil housing (1), and several connecting springs (10) are evenly installed on the inner wall of the squeezing chamber (9).
4. A fan coil unit docking device according to claim 3, characterized in that: A sealing ring (11) is installed on the outer surface of several connecting springs (10), the outer surface of the sealing ring (11) is in contact with the outer surface of the connecting hose (3), and the sealing ring (11) is provided with an inclined surface (18).
5. A fan coil unit docking device according to claim 4, characterized in that: Two limiting cavities (12) are provided on the outer surface of the fan coil housing (1), and a reinforcing retaining ring (13) is installed on the inner wall of each of the two limiting cavities (12).
6. A fan coil unit docking device according to claim 5, characterized in that: Both of the reinforcing retaining rings (13) have through grooves (14) inside. Bolts (15) are movably installed on the inner wall of the through grooves (14), and nuts (16) are movably installed on the outer surface of the bolts (15).