Quick connecting structure of new energy variable frequency wind-water heat exchange unit

Abstract

The utility model provides a kind of quick connecting structure of new energy frequency conversion wind water heat exchange unit, belong to new energy butt joint pipeline technical field, including with the quick connection port of heat exchange unit opposite, the outer wall of outer expansion interface is opened with the annular clamping groove of eccentric wheel and is clamped, and the rotating locking component of outer expansion interface is arranged on the rotation of eccentric wheel, the outer wall of outer expansion interface is opened with the pre-tightening gap slot of eccentric wheel, in butt joint, the pre-tightening gap slot on outer expansion interface is slid from the outer wall of eccentric wheel into quick connection port inside, pre-tightening gap slot and eccentric wheel are in the position of mutual misregistration, the pre-tightening of quick connection port and outer expansion interface is realized by the non-adhesion state of eccentric wheel and annular clamping groove, then by the rotating locking component on outer expansion interface eccentric wheel is driven to rotate to the position of annular clamping groove inner wall and is adhered, the lock of quick connection port and outer expansion interface is realized.

Description

Technical Field

[0001] This utility model relates to the field of new energy variable frequency heat exchange pipeline technology, specifically a quick connection structure for a new energy variable frequency air-water heat exchange unit. Background Technology

[0002] In the application scenarios of new energy variable frequency air-water heat exchange units (such as building HVAC, new energy vehicle thermal management, industrial waste heat recovery systems, etc.), the connection structure between the heat exchange unit and the external pipeline is a key link to ensure the efficient operation of the system.

[0003] The following problems were found in the relevant technologies: the existing connection structure lacks a limiting and locking mechanism. For example, the snap-fit ​​connection is prone to loosening due to insufficient insertion depth, and the threaded connection is prone to excessive loosening and leakage due to improper tightening torque. In the high-frequency vibration environment of the new energy system, there is a risk of joint detachment, which affects the stability of system operation. In response, we have proposed a quick connection structure for the new energy variable frequency air-water heat exchange unit.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background section of this application, and therefore may include prior art information that does not constitute prior art information known to those skilled in the art. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To address the issue of rapid connection in the prior art, this utility model provides a rapid connection structure for a new energy variable frequency air-water heat exchange unit, employing a quick pre-tightening structure combined with a secondary locking structure to achieve rapid and stable connection. The specific technical solution is as follows: A quick-connect structure for a new energy variable frequency air-water heat exchange unit includes a quick-connect port that connects to the heat exchange unit. An expansion interface is inserted into the end of the quick-connect port away from the heat exchange unit. The outer wall of the quick-connect port has a groove extending into its inner cavity, and an eccentric chuck is rotatably provided on the inner wall of the groove. The outer wall of the expansion interface has an annular groove that engages with the eccentric chuck. A rotary locking member that drives the eccentric chuck to rotate is provided on the expansion interface. A pre-tightening clearance groove that can slide over the eccentric chuck is provided on the outer wall of the expansion interface.

[0006] In the above technical solution, the rotary locking member includes a pusher that is slidably disposed on the inner wall of the groove cavity, and the pusher is attached to the bottom of the outer wall of the eccentric chuck. The outer wall of the expansion interface is provided with a propulsion member that drives the pusher to move forward.

[0007] The propulsion component includes a propulsion ring threadedly connected to the outer wall of the expansion interface, and the propulsion ring is located near the outer interface side of the expansion interface. The outer wall of the pusher is fixedly connected to a force-bearing column for bearing the thrust of the propulsion ring.

[0008] The outer wall of the propulsion ring that contacts the force-bearing column is an arc-shaped edge, and the contact point between the force-bearing column and the propulsion ring is arc-shaped.

[0009] The quick-connect port is used to fix a limiting ring to the inner wall of the cavity of the external expansion interface, and a sealing gasket is embedded between the limiting ring and the inner wall of the quick-connect port.

[0010] The inner wall of the cavity is provided with a guide groove, and the outer wall of the pusher is fixedly connected with a slider that is slidably disposed on the inner wall of the guide groove.

[0011] The outer wall of the eccentric chuck is fixed with a compensating protrusion that fits against the inner wall of the annular groove.

[0012] The quick-connect port is a stepped tube opening.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. Adopting a quick alignment design of "pre-tightening clearance groove + eccentric chuck": The external expansion interface can be directly slid through the eccentric chuck through the pre-tightening clearance groove to achieve quick insertion. A 90° rotation is enough to complete the pre-alignment without repeated alignment. Then, the eccentric chuck is locked by turning the push ring. The whole process does not require disassembling other parts. A single person can complete the docking within 30 seconds, which improves the efficiency by more than 80% compared with traditional flange connection.

[0014] II. Stepped quick-connect port and external expansion interface with different diameter adaptation design: The quick-connect port is welded from pipes of different diameters, and the inner wall of the external expansion interface is provided with internal threads, which can directly connect to external pipes of different diameters without the need for additional diameter reducers. This adapts to the common pipe connection requirements of new energy systems, reducing the number of accessories and installation steps.

[0015] Third, the eccentric chuck has an elliptical structure. After being driven to rotate eccentrically by the pushing component, its outer wall fits tightly with the inner wall of the annular groove. The compensating protrusion can prevent the eccentric chuck from rotating excessively, forming a "self-locking" mechanism. Even in the high-frequency vibration environment of the new energy heat exchange unit (such as vehicle driving vibration and equipment operation vibration), it can prevent the joint from loosening and ensure long-term sealing reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model where the quick-connect port and the external expansion interface are separated. Figure 2 This is a schematic diagram of the connection between the quick-connect port and the external expansion interface of this utility model; Figure 3 This is an exploded view of part of the quick-connect port and external expansion interface of this utility model; in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-Quick-connect port, 2-External expansion interface, 3-Cavity, 4-Eccentric chuck, 5-Annular groove, 6-Pushing component, 7-Pre-tightening clearance groove, 8-Propulsion ring, 9-Force-bearing column, 10-Limiting ring stop, 11-Sealing gasket, 12-Guide groove, 13-Slider, 14-Compensation protrusion. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The following are specific implementation cases and appendices. Figure 1-3 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0019] A quick-connect structure for a new energy variable frequency air-water heat exchange unit includes a quick-connect port 1 that connects to the heat exchange unit. The quick-connect port 1 is constructed by welding two pipes of different diameters. The outer wall of the smaller diameter pipe section has external threads, which allow the quick-connect port to connect with the new energy variable frequency air-water heat exchange unit. The other end of the quick-connect port 1 is the larger diameter section, with an expansion interface 2 inserted into one side of the larger diameter pipe opening. This allows the new energy variable frequency air-water heat exchange unit to be sealed and connected to the expansion interface 2 via the quick-connect port 1. The inner wall of the other end of the expansion interface 2 has internal threads, which allow the expansion interface 2 to connect with an outer pipe. This allows the outer pipe to connect to the quick-connect port 1, which is connected to the new energy variable frequency air-water heat exchange unit, via the expansion interface 2.

[0020] The quick-connect port 1, at the end furthest from the heat exchange unit, is connected to an expansion port 2. The outer wall of the quick-connect port 1 has a cavity 3 extending into its inner chamber, and an eccentric retainer 4 is rotatably mounted on the inner wall of the cavity 3. The quick-connect port 1, for docking with the expansion port 2, has two symmetrical cavities 3 along its outer side. The longitudinal section of the eccentric retainer 4 is elliptical, and it rotates eccentrically within the cavity 3 via a rotating shaft. The outer wall of the expansion port 2 has an annular groove 5 that engages with the eccentric retainer 4, and a rotary locking component that drives the eccentric retainer 4 to rotate. The outer wall of the expansion port 2 also has a pre-tightening clearance groove 7 that slides over the eccentric retainer 4. The depth and width of the pre-tightening clearance groove 7 correspond to those of the eccentric retainer 4.

[0021] During docking, the pre-tightening clearance groove 7 on the outer expansion interface 2 slides from the outer wall of the eccentric chuck 4 into the quick-connect port 1. When the end of the outer expansion interface 2 is in contact with the inner wall of the quick-connect port 1, the annular groove 5 and the two eccentric chucks 4 are in opposite positions. Then, the outer expansion interface 2 is rotated 90°. At this time, the pre-tightening clearance groove 7 and the eccentric chuck 4 are in a misaligned position. The pre-tightening of the quick-connect port 1 and the outer expansion interface 2 is achieved by the non-contact state of the eccentric chuck 4 and the annular groove 5. Then, the rotation locking component on the outer expansion interface 2 drives the eccentric chuck 4 to rotate to a position in contact with the inner wall of the annular groove 5, thereby locking the quick-connect port 1 and the outer expansion interface 2.

[0022] The rotary locking component includes a pusher 6 that is slidably disposed on the inner wall of the groove cavity 3, and the pusher 6 is attached to the bottom of the outer wall of the eccentric chuck 4. The pusher 6 is a horizontally placed cylinder, and the two ends of the pusher 6 are attached to the two sides of the inner wall of the groove cavity 3 and slide along the axial direction. The outer wall of the expansion interface 2 is provided with a propulsion component that drives the pusher 6 to move forward.

[0023] The pushing component drives the pushing part 6 to move at the bottom of the outer wall of the eccentric chuck 4. As the pushing part 6 slides against the bottom of the arc-shaped outer wall of the eccentric chuck 4, it drives the eccentric chuck 4 to rotate eccentrically, thereby locking the eccentric chuck 4 onto the inner wall of the annular groove 5.

[0024] It is worth noting that the propulsion component includes a propulsion ring 8 threadedly connected to the outer wall of the expansion interface 2, with the propulsion ring 8 located near the outer interface side of the expansion interface 2. A force-bearing column 9 for bearing the thrust of the propulsion ring 8 is fixedly connected to the outer wall of the pusher 6. The force-bearing column 9, horizontally facing the propulsion ring 8, is fixedly installed on the outer wall of the pusher 6. The expansion interface 2 has a partial external thread along its outer wall at the end that connects with the outer tube. The propulsion ring 8 is threadedly connected to the outer wall of the expansion interface 2. An operating rod perpendicular to the ground is installed on the outer wall of the propulsion ring 8. Twisting the push ring 8 causes it to move on the outer wall of the expansion interface 2. As the push ring 2 moves, it pushes the force-bearing column 9, which in turn drives the eccentric chuck 4 to rotate through the pusher 6.

[0025] The outer wall of the push ring 8 that contacts the force-bearing column 9 is arc-shaped, and the contact point between the force-bearing column 9 and the push ring 8 is also arc-shaped. The arc-shaped contact surface ensures the smoothness of the rotation process of the drive eccentric chuck 4.

[0026] Furthermore, a limiting ring 10 is fixed to the inner wall of the cavity of the quick-connect port 1 for docking with the expansion interface 2, and a sealing gasket 11 is embedded between the limiting ring 10 and the inner wall of the quick-connect port 1. The sealing gasket 11 ensures the sealing between the quick-connect port 1 and the expansion interface 2. The limiting ring 10 limits the sealing gasket 11 while limiting the insertion depth of the expansion interface 2, ensuring the accuracy of the engagement position between the annular groove 5 and the eccentric cam 4.

[0027] The inner wall of the cavity 3 is provided with a guide groove 12, and the outer wall of the pusher 6 is fixedly connected with a slider 13 that is slidably disposed on the inner wall of the guide groove 12. The sliding cooperation between the guide groove 12 and the slider 13 ensures the stability of the sliding direction of the pusher 6.

[0028] In addition, the outer wall of the eccentric chuck 4 is fixed with a compensating protrusion 14 that fits against the inner wall of the annular groove 5. The compensating protrusion 14 prevents the eccentric chuck 4 from rotating too much, so that it can be locked after a small angle of rotation, thereby preventing instability after the expansion interface 2 and the quick-connect port 1 are connected.

[0029] Furthermore, quick-connect port 1 is a stepped tube opening.

[0030] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] 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 quick connection structure for a new energy variable frequency air-water heat exchange unit, characterized in that: It includes a quick-connect port (1) that is connected to the heat exchange unit. An external expansion port (2) is inserted at the end of the quick-connect port (1) that is away from the heat exchange unit. The outer wall of the quick-connect port (1) has a groove (3) that extends into its inner cavity. An eccentric chuck (4) is rotatably provided on the inner wall of the groove (3). The outer wall of the external expansion port (2) has an annular groove (5) that engages with the eccentric chuck (4). The external expansion port (2) is provided with a rotary locking member that drives the eccentric chuck (4) to rotate. The outer wall of the external expansion port (2) has a pre-tightening clearance groove (7) that can slide over the eccentric chuck (4).

2. The quick connection structure of a new energy variable frequency air-water heat exchange unit according to claim 1, characterized in that: The rotary locking component includes a pusher (6) that is slidably disposed on the inner wall of the groove (3), and the pusher (6) is attached to the bottom of the outer wall of the eccentric chuck (4). The outer wall of the expansion interface (2) is provided with a propulsion component that drives the pusher (6) to move forward.

3. The quick connection structure of a new energy variable frequency air-water heat exchange unit according to claim 2, characterized in that: The propulsion component includes a propulsion ring (8) threadedly connected to the outer wall of the expansion interface (2), and the propulsion ring (8) is close to the outer interface side of the expansion interface (2). The outer wall of the pusher (6) is fixed with a force-bearing column (9) for bearing the thrust of the propulsion ring (8).

4. The quick connection structure of a new energy variable frequency air-water heat exchange unit according to claim 3, characterized in that: The outer wall of the propulsion ring (8) that contacts the force-bearing column (9) is an arc-shaped edge, and the contact point between the force-bearing column (9) and the propulsion ring (8) is arc-shaped.

5. The quick connection structure of a new energy variable frequency air-water heat exchange unit according to claim 1, characterized in that: The quick-connect port (1) is used to fix a limiting ring (10) to the inner wall of the cavity of the external expansion interface (2), and a sealing gasket (11) is embedded between the limiting ring (10) and the inner wall of the quick-connect port (1).

6. The quick connection structure of a new energy variable frequency air-water heat exchange unit according to claim 2, characterized in that: The inner wall of the cavity (3) is provided with a guide groove (12), and the outer wall of the pusher (6) is fixed with a slider (13) that is slidably disposed on the inner wall of the guide groove (12).

7. The quick connection structure of a new energy variable frequency wind-water heat exchange unit according to claim 1, characterized in that: The outer wall of the eccentric chuck (4) is fixed with a compensating protrusion (14) that fits against the inner wall of the annular groove (5).

8. The quick connection structure of a new energy variable frequency air-water heat exchange unit according to claim 1, characterized in that: The quick-connect port (1) is a stepped pipe opening.

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