Connecting assembly, hydraulic module and heating unit

Abstract

The utility model discloses a connecting assembly, a hydraulic module and a heating unit. The connecting assembly comprises a main body and a sealing gasket, the main body is provided with a combination part and an abutting end face, the combination part is arranged on the abutting end face in a protruding mode in the direction away from the main body, and the sealing gasket is arranged on the combination part in a sleeving mode and attached to the abutting end face. According to the connecting assembly, the combination part is arranged on the abutting end face in the protruding mode in the direction away from the main body, the sealing gasket is arranged on the combination part in a sleeving mode and attached to the abutting end face, when the connecting assembly is connected with another component, the combination part can be connected with the component, and the sealing gasket can be clamped between the component and the abutting end face; therefore, the sealing washer can be exposed (visualized), and the risk of neglected installation of the sealing washer is reduced to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, in particular to a connection component, a hydraulic module and a heating unit. Background Art

[0002] In related technologies, when a water system using a safety valve reaches a certain pressure, the valve automatically releases the pressure, requiring drainage from the valve's outlet. Typically, a threaded hole with internal threads is provided at the valve's outlet, and the corresponding hose connector uses external and internal threads to connect. A sealing gasket is further placed within the threaded hole to ensure a tight connection between the valve's outlet and the hose. However, current sealing gaskets carry the risk of leaking. Utility Model Content

[0003] The embodiments of the present utility model provide a connection assembly, a hydraulic module and a heating unit to solve at least one of the above-mentioned technical problems.

[0004] A connection assembly provided in an embodiment of the present invention includes a main body and a sealing gasket, wherein the main body is provided with a joint portion and an abutting end face, the joint portion is protruded on the abutting end face in a direction away from the main body, and the sealing gasket is sleeved on the joint portion and fits with the abutting end face.

[0005] In the above-mentioned connecting assembly, the coupling portion is protruded on the abutting end face in a direction away from the main body, and the sealing gasket is sleeved on the coupling portion and fits with the abutting end face. When the connecting assembly is connected to another component, the coupling portion can be connected to the component, and the sealing gasket can be clamped between the component and the abutting end face, so that the sealing gasket can be exposed (visualized), reducing the risk of missing the sealing gasket to a certain extent.

[0006] In some embodiments, the coupling portion is provided with threads.

[0007] In certain embodiments, a portion of the coupling portion close to the main body is provided with a limiting groove, and the sealing gasket is embedded in the limiting groove.

[0008] In certain embodiments, the connection assembly includes a connection head, the connection head includes the coupling portion and the abutting end surface, and the main body is connected to a side surface of the connection head facing away from the abutting end surface.

[0009] In some embodiments, the connector is a plastic part.

[0010] In certain embodiments, the connector includes an operating portion, the operating portion includes the abutting end surface, and the main body is connected to a side surface of the operating portion facing away from the abutting end surface.

[0011] In certain embodiments, the main body includes a connecting pipe, and the coupling portion and the abutting end surface are formed at one end of the connecting pipe.

[0012] In certain embodiments, the sealing gasket is a flat gasket.

[0013] A hydraulic module according to an embodiment of the present invention includes a connection assembly according to any one of the above embodiments.

[0014] In some embodiments, the hydraulic module includes a safety valve, the main body includes a connecting pipe, the safety valve includes an outlet joint, the outlet joint is provided with a first mounting hole, the coupling portion is embedded in the first mounting hole, and the sealing gasket is clamped between the periphery of the first mounting hole and the abutting end face.

[0015] In certain embodiments, the hydraulic module includes a heat exchanger and a first pipe, the first pipe is connected to the heat exchanger, and the safety valve includes a connecting head, and the safety valve is connected to the first pipe through the connecting head.

[0016] In certain embodiments, the hydraulic module includes an expansion tank and a second pipe, the second pipe is connected to the expansion tank, and the safety valve includes a connecting head, the safety valve is connected to the second pipe through the connecting head.

[0017] A heating unit according to an embodiment of the present invention includes a hydraulic module according to any one of the above embodiments.

[0018] In the above-mentioned hydraulic module and heating unit, the joint is protruded on the abutting end surface in the direction away from the main body, and the sealing gasket is sleeved on the joint and fits with the abutting end surface. When the connecting assembly is connected to another component, the joint can be connected to the component, and the sealing gasket can be clamped between the component and the abutting end surface, so that the sealing gasket can be exposed (visualized), reducing the risk of missing the sealing gasket to a certain extent.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments with reference to the following drawings, in which:

[0021] Figure 1 This is a schematic structural diagram of a connection assembly according to an embodiment of the present invention;

[0022] Figure 2 This is another structural schematic diagram of the connection assembly according to an embodiment of the present invention;

[0023] Figure 3 It is an exploded schematic diagram of a connection assembly according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection between the connecting assembly and the safety valve in accordance with an embodiment of the present invention;

[0025] Figure 5 This is a schematic structural diagram of a safety valve according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic structural diagram of a hydraulic module according to an embodiment of the present invention;

[0027] Figure 7 This is another structural schematic diagram of the hydraulic module according to the embodiment of the present utility model.

[0028] Description of main component reference numerals:

[0029] Connecting assembly 100, main body 12, sealing gasket 14, joint 16, abutting end surface 18, first mounting hole 20, external thread 22, internal thread 24, limiting groove 26, connector 28, safety valve 30, outlet connector 32, operating portion 34, heat exchanger 36, first pipe 38, connecting head 40, first connector 42, second connector 44, third connector 46, fourth connector 48, water inlet pipe 49, expansion tank 50, second pipe 52;

[0030] Hydraulic module 200. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary, and they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] The disclosure herein provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0036] See also Figures 1 to 3 A connection assembly 100 provided in an embodiment of the present invention includes a main body 12 and a sealing gasket 14. The main body 12 is provided with a joint portion 16 and an abutting end face 18. The joint portion 16 is protruded on the abutting end face 18 in a direction away from the main body 12. The sealing gasket 14 is sleeved on the joint portion 16 and fits with the abutting end face 18.

[0037] In the above-mentioned connecting assembly 100, the coupling portion 16 is protruded on the abutting end face 18 in a direction away from the main body 12, and the sealing gasket 14 is sleeved on the coupling portion 16 and fits against the abutting end face 18. When the connecting assembly 100 is connected to another component, the coupling portion 16 can be connected to the component, and the sealing gasket 14 can be clamped between the component and the abutting end face 18, so that the sealing gasket 14 can be exposed (visualized), reducing the risk of missing the sealing gasket 14 to a certain extent.

[0038] Specifically, the connection assembly 100 can be applied to, but not limited to, a hydraulic module 200. The hydraulic module 200 can be applied to a heating unit. In one embodiment, the heating unit may include an outdoor unit, a domestic water tank, a gas boiler, a zone 1 system, and a zone 2 system. The hydraulic module 200 can connect the outdoor unit, the domestic water tank, the gas boiler, the zone 1 system, and the zone 2 system via pipes. The outdoor unit can include a heat pump system, which can heat cold water into hot water and then pass the hot water into the hydraulic module 200 for distribution.

[0039] The gas furnace can use the heat generated by the combustion of gas to heat cold water to form hot water. The hot water output by the gas furnace is input into the hydraulic module 200 for distribution.

[0040] Optionally, the heating unit further includes a solar panel, and the hydraulic module 200 is connected to the solar panel via a pipeline. The solar panel is used to convert solar energy into thermal energy to heat water to form hot water, which can be transmitted to the hydraulic module 200 for distribution.

[0041] First, the hydraulic module 200 delivers hot water to the coil within the domestic water tank. The hot water then transfers heat through the coil to the domestic water in the tank, raising the temperature of the domestic water. The domestic water tank can be connected to a faucet, showerhead, or other outlet valve, and the heated domestic water can be supplied to the user through these outlet valves.

[0042] Secondly, the hydraulic module 200 can deliver hot water to the Zone 1 system. The Zone 1 system can include a heater suspended from the indoor ceiling, including but not limited to a fan coil unit (FCU). The fan coil unit can dissipate the heat of the hot water into the room, raising the indoor temperature.

[0043] Thirdly, the hydraulic module 200 can deliver hot water to the Zone 2 system, which can include floor heating and / or radiators. The floor heating dissipates the heat from the hot water to the ground, and the radiators dissipate the heat from the hot water into the room, thereby raising the ground and indoor temperatures.

[0044] The hydraulic module 200 integrates various components installed by the client, facilitating installation and maintenance. Optionally, in one embodiment, the hydraulic module 200 includes structural components and system components. Structural components include, but are not limited to, a chassis, frame, door panels, top cover, and decorative rings; system components include, but are not limited to, ball valves, magnetic filters, buffer storage tanks, mixing valves (three-way valves), water pumps, exhaust valves, safety valves, water pressure gauges, expansion tanks, backflow prevention valves, constant-pressure water supply valves, and soft water filters.

[0045] The main body 12 of the connection assembly 100 can be at least one of the aforementioned system components, or can be a connecting pipe connecting the aforementioned system components. In addition to being applicable to the hydraulic module 200, the connection assembly 100 can also be applied to other modules that transport fluids (such as liquids or gases). The connection assembly 100 can form a portion of the path through which the fluid flows.

[0046] Optionally, in one embodiment, another component connected to the connecting assembly 100 is provided with a first mounting hole 20, the coupling portion 16 can be embedded in the first mounting hole 20, and the sealing gasket 14 can be clamped between the periphery of the first mounting hole 20 and the abutting end face 18, thereby sealingly connecting the periphery of the first mounting hole 20 and the main body 12 to avoid fluid leakage.

[0047] Since the sealing gasket 14 is sleeved on the joint 16 and fits against the abutting end face 18 , the sealing gasket 14 can be located outside the first mounting hole 20 , thereby realizing visualization of the sealing gasket 14 and reducing the risk of missing the sealing gasket 14 to a certain extent.

[0048] The material of the sealing gasket 14 includes but is not limited to rubber and silicone.

[0049] In some embodiments, the coupling portion 16 is provided with threads.

[0050] Thus, the main body 12 can be connected to another component by means of threads, which is simple in connection and easy to maintain.

[0051] Optionally, combine Figure 1 In one embodiment, the outer circumferential surface of the coupling portion 16 is provided with external threads 22, and another component connected to the connection assembly 100 is provided with a first mounting hole 20. The inner wall of the first mounting hole 20 is provided with internal threads 24. The coupling portion 16 can be connected to the inner wall of the first mounting hole 20 by connecting the external threads 22 and the internal threads 24, so that the coupling portion 16 is embedded in the first mounting hole 20. The sealing gasket 14 can be sandwiched between the circumference of the first mounting hole 20 and the abutting end surface 18, thereby sealing the connection between the main body 12 and the component.

[0052] Alternatively, in one embodiment, the coupling portion 16 may be provided with a second mounting hole, the inner wall of which may be provided with an internal thread 24. Another component connected to the connection assembly 100 may be provided with an abutting surface and a protrusion, the protrusion being provided protruding from the abutting surface, and the outer circumferential surface of the protrusion being provided with an external thread 22. The second mounting hole of the coupling portion 16 may be connected to the protrusion by connecting the internal thread 24 with the external thread 22, thereby allowing the protrusion to be embedded in the second mounting hole. A sealing gasket 14 may be sandwiched between the abutting surface and the abutting end face 18 to seal the connection between the main body 12 and the component.

[0053] It can be understood that in other embodiments, the coupling portion 16 and another component can be connected by interference fit or snap fit.

[0054] In some embodiments, please combine Figure 1 and Figure 3 A limiting groove 26 is provided on the portion of the coupling portion 16 close to the main body 12 , and the sealing gasket 14 is embedded in the limiting groove 26 .

[0055] In this way, the sealing gasket 14 can be limited and prevented from falling to a certain extent.

[0056] Specifically, the sealing gasket 14 is embedded in the limiting groove 26 so that the sealing gasket 14 is limited in the limiting groove 26. When the connecting assembly 100 is connected to another component, the sealing gasket 14 is not likely to fall off the joint 16 and affect the installation efficiency.

[0057] Optionally, in one embodiment, during installation, the coupling portion 16 can be assembled with another component in the horizontal direction, and the limiting groove 26 can limit the sealing gasket 14 in the horizontal direction during the installation process, which is beneficial to improving installation efficiency.

[0058] Optionally, the shape of the limiting groove 26 is adapted to the shape of the sealing gasket 14 , so that the sealing gasket 14 can be better limited.

[0059] In some embodiments, the connection assembly 100 includes a connection head 28 , which includes a coupling portion 16 and an abutting end surface 18 . The main body 12 is connected to a side surface of the connection head 28 facing away from the abutting end surface 18 .

[0060] Therefore, it is possible to quickly connect to another component through the connector 28, thereby improving installation efficiency.

[0061] Specifically, connector 28 can be connected to another component. In one embodiment, the other component is a safety valve 30. Safety valve 30 includes an outlet connector 32 with a first mounting hole 20. Connector 28 includes a coupling portion 16 and an abutting end surface 18. Main body 12 may include a connecting pipe. During connection, a user can operate connector 28 to screw coupling portion 16 into first mounting hole 20, interlocking external thread 22 and internal thread 24 until sealing gasket 14 is clamped between the periphery of first mounting hole 20 and abutting end surface 18.

[0062] The safety valve 30 can automatically release pressure when a certain pressure is reached in the connected pipeline, and the outlet connector 32 can be drained through the connecting pipe. Optionally, the connecting pipe can be a connecting hose, which is conducive to the flexible arrangement of the connecting pipe.

[0063] In some embodiments, the connector 28 is a plastic piece.

[0064] As a result, the cost of the connection assembly 100 can be reduced.

[0065] Specifically, in one embodiment, the connection assembly 100 is connected to the safety valve 30. Typically, the housing of the safety valve 30 is made of brass. In related art, the corresponding connecting hose often uses a brass connector with external threads 22 to connect to the safety valve 30, which is costly.

[0066] In this embodiment, the connector 28 is a plastic part, which is more cost-effective. The plastic connector 28 can also achieve the drainage effect of the safety valve 30. Optionally, the connector 28 is an integrally molded structure.

[0067] In some embodiments, the connector 28 includes an operating portion 34 , the operating portion 34 includes an abutting end surface 18 , and the main body 12 is connected to a side surface of the operating portion 34 facing away from the abutting end surface 18 .

[0068] Thus, the connection head 28 can be easily operated to connect with another component.

[0069] Optionally, combine Figure 1 、 Figure 4 and Figure 5 In one embodiment, the coupling portion 16 is connected to another component by a thread. The outer peripheral surface of the coupling portion 16 is provided with an external thread 22, the other component is provided with a first mounting hole 20, and the inner wall of the first mounting hole 20 is provided with an internal thread 24. When installing the connecting component 100 and another component, the operating portion 34 can be clamped by hand or with a tool to move the connecting component 100 toward the component. The coupling portion 16 can be inserted into the first mounting hole 20 and rotated by the operating portion 34, so that the coupling portion 16 can be screwed into the first mounting hole 20 until the circumference of the first mounting hole 20 and the abutment end face 18 clamp the sealing gasket 14. Figure 1 In the embodiment, the operating portion 34 is hexagonal in shape, so that a wrench can be used to grip the operating portion 34 and rotate it to install and remove the connecting assembly 100 .

[0070] In some embodiments, the main body 12 includes a connecting pipe, and the coupling portion 16 and the abutting end surface 18 are formed at one end of the connecting pipe.

[0071] The connecting pipe can thereby conduct the fluid away.

[0072] Specifically, please combine Figure 1 、 Figure 4 and Figure 5 In one embodiment, another component connected to the connection assembly 100 is a safety valve 30. The safety valve 30 is connected to the pipeline, and the outlet connector 32 of the safety valve 30 is connected to the joint 16. When the pressure in the pipeline reaches a certain level, the safety valve 30 automatically releases the pressure. At this time, the outlet connector 32 can direct the outflowing fluid to a desired location through the connecting pipe.

[0073] Optionally, the connecting pipe may be a hose, which may be arranged flexibly, thereby improving space utilization.

[0074] In certain embodiments, the sealing gasket 14 is a flat gasket.

[0075] In this way, the sealing area can be increased to a certain extent, thereby improving the sealing performance.

[0076] Specifically, compared to an O-ring, the two end surfaces of a flat gasket have a larger area. In one embodiment, the connection assembly 100 is connected to a safety valve 30. The outlet connector 32 of the safety valve 30 is provided with a first mounting hole 20. The periphery of the first mounting hole 20 abuts against one end surface of the flat gasket, and the abutting end surface 18 abuts against the other end surface of the flat gasket. Thus, the periphery of the first mounting hole 20 and the abutting end surface 18 clamp the flat gasket through the two end surfaces of the flat gasket, which can increase the sealing area to a certain extent, thereby improving the sealing performance.

[0077] A hydraulic module 200 according to an embodiment of the present invention includes a connection assembly 100 according to any one of the above embodiments.

[0078] In the above-mentioned hydraulic module 200, the coupling portion 16 is protruded on the abutting end face 18 in a direction away from the main body 12, and the sealing gasket 14 is sleeved on the coupling portion 16 and fits against the abutting end face 18. When the connecting assembly 100 is connected to another component, the coupling portion 16 can be connected to the component, and the sealing gasket 14 can be clamped between the component and the abutting end face 18, so that the sealing gasket 14 can be exposed (visualized), reducing the risk of missing the sealing gasket 14 to a certain extent.

[0079] The hydraulic module 200 can be applied to, including but not limited to, heating units. The hydraulic module 200 can deliver both hot and cold water. In one embodiment, the hydraulic module 200 can distribute the hot water generated by the outdoor unit, gas furnace, and solar panels to the area one system, area two system, and the domestic water tank, thereby increasing the temperature of the space where the area one and area two systems are located, and increasing the temperature of the domestic water in the domestic water tank. In one embodiment, the hydraulic module 200 can distribute the cold water generated by the outdoor unit and solar panels to the area one system, area two system, and the domestic water tank, thereby decreasing the temperature of the space where the area one and area two systems are located, and decreasing the temperature of the domestic water in the domestic water tank.

[0080] In some embodiments, the hydraulic module 200 includes a safety valve 30, the main body 12 includes a connecting pipe, the safety valve 30 includes an outlet joint 32, the outlet joint 32 is provided with a first mounting hole 20, the coupling portion 16 is embedded in the first mounting hole 20, and the sealing gasket 14 is clamped between the periphery of the first mounting hole 20 and the abutting end face 18.

[0081] Thus, the safety valve 30 can be drained through the connecting pipe.

[0082] Specifically, please combine Figure 1 、 Figure 4 and Figure 5 In one embodiment, the outer circumferential surface of the coupling portion 16 is provided with external threads 22, and the outlet connector 32 is provided with a first mounting hole 20. The inner wall of the first mounting hole 20 is provided with internal threads 24. The coupling portion 16 and the outlet connector 32 are connected by the external threads 22 and the internal threads 24. The safety valve 30 can be connected to a pipeline. When the pressure in the pipeline reaches a certain level, the safety valve 30 automatically releases the pressure. At this time, the outlet connector 32 can direct the outflowing fluid (such as water) to a desired location through the connecting pipe.

[0083] The sealing gasket 14 is sandwiched between the periphery of the first mounting hole 20 and the abutting end surface 18 , thereby ensuring the sealing performance between the safety valve 30 and the connecting pipe to a certain extent.

[0084] In certain embodiments, the hydraulic module 200 includes a heat exchanger 36 and a first pipe 38 . The first pipe 38 is connected to the heat exchanger 36 . The safety valve 30 includes a connecting head 40 . The safety valve 30 is connected to the first pipe 38 via the connecting head 40 .

[0085] Therefore, when the water channel of the heat exchanger 36 reaches a certain pressure, the safety valve 30 can automatically release the pressure, thereby ensuring the safety of the water channel.

[0086] Specifically, in one embodiment, please combine Figure 6The heat exchanger 36 includes a first connector 42, a second connector 44, a third connector 46, and a fourth connector 48. The first connector 42 can be connected to the water inlet pipe 49, and the second connector 44 can be connected to the first pipe 38. The first pipe 38 serves as the water outlet pipe. The third connector 46 and the fourth connector 48 can be connected to the refrigerant inlet pipe and the refrigerant outlet pipe, respectively. Refrigerant enters the heat exchanger 36 through the third connector 46, and cold water enters the heat exchanger 36 through the first connector 42. The cold water and refrigerant exchange heat within the heat exchanger 36, and the cold water becomes hot water. After heat exchange, the refrigerant can flow out of the heat exchanger 36 through the fourth connector 48, and the hot water flows out of the heat exchanger 36 through the second connector 44 and is distributed through the first pipe 38. The safety valve 30 is connected to the first pipe 38 through the connecting connector 40. When a certain pressure is reached in the first pipe 38, it can automatically release pressure, ensuring the safety of the waterway to a certain extent. The water released from the outlet connector 32 of the safety valve 30 can be drained through the connecting pipe.

[0087] The heat exchanger 36 may include, but is not limited to, a plate heat exchanger 36 .

[0088] In some embodiments, please combine Figure 7 The hydraulic module 200 includes an expansion tank 50 and a second pipe 52 , the second pipe 52 is connected to the expansion tank 50 , and the safety valve 30 includes a connecting head 40 , the safety valve 30 is connected to the second pipe 52 through the connecting head 40 .

[0089] Therefore, when the water channel of the expansion tank 50 reaches a certain pressure, the safety valve 30 can automatically release the pressure, thereby ensuring the safety of the water channel.

[0090] Specifically, the expansion tank 50 can replenish or add water in a timely manner based on the water line pressure. The operating principle of the expansion tank 50 is as follows: when pressurized water enters the airbag of the expansion tank 50, the nitrogen gas sealed within the tank is compressed. According to Boyle's gas law, the gas is compressed, its volume decreases, and its pressure increases. Water inflow stops when the gas pressure within the expansion tank 50 reaches the same level as the water pressure. When the pressure decreases due to water loss, the gas pressure within the expansion tank 50 becomes greater than the water pressure. At this point, the gas expands, squeezing the water out of the airbag and replenishing it in the water line outside the expansion tank 50.

[0091] The safety valve 30 is connected to the second pipe 52 through the connecting head 40. When a certain pressure is reached in the second pipe 52, the pressure is automatically released, thereby ensuring the safety of the waterway to a certain extent. The water released from the outlet connector 32 of the safety valve 30 can be drained through the connecting pipe.

[0092] A heating unit according to an embodiment of the present invention includes a hydraulic module 200 according to any one of the above embodiments.

[0093] In the above-mentioned heating unit, the joint 16 is protruded on the abutting end face 18 in the direction away from the main body 12, and the sealing gasket 14 is sleeved on the joint 16 and fits with the abutting end face 18. When the connecting assembly 100 is connected to another component, the joint 16 can be connected to the component, and the sealing gasket 14 can be clamped between the component and the abutting end face 18, so that the sealing gasket 14 can be exposed (visualized), reducing the risk of missing installation of the sealing gasket 14 to a certain extent.

[0094] Specifically, in one embodiment, the heating unit may include an outdoor unit, a domestic water tank, a gas boiler, a zone 1 system, and a zone 2 system. The hydraulic module 200 may be connected to the outdoor unit, the domestic water tank, the gas boiler, the zone 1 system, and the zone 2 system via pipes. The outdoor unit may include a heat pump system, which may heat cold water into hot water and pass the hot water into the hydraulic module 200 for distribution to the zone 1 system and the zone 2 system.

[0095] The gas furnace can use the heat generated by the combustion of gas to heat cold water to form hot water. The hot water output by the gas furnace is input into the hydraulic module 200 for distribution to the area 1 system and the area 2 system.

[0096] Optionally, the heating unit further includes a solar panel, and the hydraulic module 200 is connected to the solar panel via a pipeline. The solar panel is used to convert solar energy into thermal energy to heat water to form hot water, which can be transmitted to the hydraulic module 200 for distribution to the area 1 system and the area 2 system.

[0097] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0098] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A connection assembly, characterized in that: It includes a main body and a sealing gasket. The main body is provided with a joint portion and an abutting end face. The joint portion is protruded on the abutting end face in a direction away from the main body. The sealing gasket is sleeved on the joint portion and fits with the abutting end face.

2. The connection assembly according to claim 1, characterized in that The coupling portion is provided with a thread.

3. The connection assembly according to claim 1, characterized in that A portion of the coupling portion close to the main body is provided with a limiting groove, and the sealing gasket is embedded in the limiting groove.

4. The connection assembly according to claim 1, wherein: The connecting assembly includes a connecting head, the connecting head includes the coupling portion and the abutting end surface, and the main body is connected to a side surface of the connecting head that is away from the abutting end surface.

5. The connection assembly according to claim 4, characterized in that The connecting head is a plastic part.

6. The connection assembly according to claim 4, characterized in that The connecting head includes an operating portion, the operating portion includes the abutting end surface, and the main body is connected to a side surface of the operating portion facing away from the abutting end surface.

7. The connection assembly according to claim 1, characterized in that The main body includes a connecting pipe, and the coupling portion and the abutting end surface are formed at one end of the connecting pipe.

8. The connection assembly according to claim 1, wherein: The sealing gasket is a flat gasket.

9. A hydraulic module, characterized in that: The invention comprises the connection assembly according to any one of claims 1 to 8.

10. The hydraulic module according to claim 9, characterized in that: The hydraulic module includes a safety valve, the main body includes a connecting pipe, the safety valve includes an outlet joint, the outlet joint is provided with a first mounting hole, the coupling portion is embedded in the first mounting hole, and the sealing gasket is clamped between the periphery of the first mounting hole and the abutting end surface.

11. The hydraulic module according to claim 10, characterized in that: The hydraulic module includes a heat exchanger and a first pipeline, the first pipeline is connected to the heat exchanger, and the safety valve includes a connecting head, and the safety valve is connected to the first pipeline through the connecting head.

12. The hydraulic module according to claim 10, characterized in that: The hydraulic module includes an expansion tank and a second pipeline, the second pipeline is connected to the expansion tank, and the safety valve includes a connecting head, the safety valve is connected to the second pipeline through the connecting head.

13. A heating unit, characterized in that: The hydraulic module comprises the hydraulic module according to any one of claims 9 to 12.

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