A self-locking quick plug device for connecting an inductive coil

Abstract

The utility model discloses a kind of self-locking quick plug devices for connecting induction coil, including induction coil, quick plug assembly and self-locking assembly;When connecting, the quick plug male head of induction coil one end is inserted into the quick plug female head of another end, until the 4 self-locking claws of quick plug male head are pressed against self-locking platform by quick plug female head first water cavity, the self-locking of quick plug male head and quick plug female head is realized, at this moment, the cavity in quick plug male head and quick plug female head is through;When separating, quick plug male head is continuously inserted into quick plug female head, at this moment the insertion end of quick plug male head moves along quick plug female head second water cavity axially, pressing plate ring continues to press self-locking claw, until self-locking claw is clamped into self-locking claw mounting groove, then quick plug male head is pulled out from quick plug female head in opposite direction, the separation of split type induction coil is realized.The utility model is simple in structure, convenient to disassemble and assemble, connection is firm, can adapt to high temperature working condition when inductive heating.

Description

Technical Field

[0001] This utility model relates to the field of electrical quick-connect connector technology, specifically a self-locking quick-connect device for connecting induction coils. Background Technology

[0002] Induction coils are the core components of induction heating systems. When the object of their action is a long workpiece or the working conditions are complex, it is particularly important that the induction coil can be made into a split type and can be quickly assembled and disassembled. However, this requires a convenient, reliable, non-loosening electrical quick-connect connector with low contact resistance to ensure the quick assembly and disassembly of the split induction coil and the reliable transmission of electrical energy. Therefore, it is essential to develop a self-locking quick-connect device for connecting induction coils.

[0003] Currently, Chinese Patent Publication No. 216929078U discloses an electrical connection connector. This device includes a male plug and a female plug. The female plug has a pair of retaining rings connected to the surface of its end facing the male plug. Both ends of the male plug are elastically connected to a retaining rod. The two retaining rods are symmetrical to each other, and the ends of the two retaining rods can engage with the retaining rings at corresponding positions. However, there is a gap between the retaining rings and retaining rods along the plug axis of this quick-connect connector, which cannot be tightly engaged. Otherwise, it would be inconvenient to plug in. Therefore, this structural gap will affect the stability of the connection. This quick-connect connector, as well as most existing quick-connect connectors, cannot be internally water-cooled and cannot be used for plug-in connection of induction coils.

[0004] In summary, while existing electrical quick-connect connectors can achieve the connection and disconnection of split induction coils to a certain extent, they still have many shortcomings. Therefore, we have developed a self-locking quick-connect device for connecting induction coils. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a self-locking quick-connect device for connecting induction coils. The split induction coils are connected by quick-connect components, which are easy to assemble and disassemble. The quick-connect components have a hollow through-structure inside, which can transmit cooling water and meet the high-temperature environment when the induction coil is heated. The quick-connect male head is provided with a self-locking claw. After the quick-connect male head is inserted into the quick-connect female head, the self-locking claw of the quick-connect male head opens and presses against the self-locking platform of the quick-connect female head to achieve self-locking, making the connection more stable and reliable.

[0006] In summary, this self-locking quick-connect device has a simple structure, is easy to assemble and disassemble, has a reliable connection, and can adapt to the high-temperature conditions during induction heating, thus effectively solving the problems in the background technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-locking quick-connect device for connecting an induction coil, comprising an induction coil, a quick-connect assembly, a quick-connect female connector, a quick-connect male connector, and a self-locking assembly; the induction coil is provided with two sets of multiple quick-connect assemblies arranged in a linear array parallel to its axis; each quick-connect assembly includes the quick-connect female connector and the quick-connect male connector; the quick-connect female connector includes a first water supply chamber, a self-locking platform, a pressure plate ring, and a second water supply chamber; the mating end of the quick-connect female connector is provided with the first water supply chamber; the first water supply chamber of the quick-connect female connector... The end of the water cavity away from the insertion end is the self-locking platform. The self-locking platform is provided with the pressure plate ring and the second water supply cavity of the quick-connect female head in sequence on the side away from the insertion end. The quick-connect male head includes the self-locking assembly and the quick-connect male head water supply cavity. Four self-locking assemblies are arranged in a circumferential array along the outer edge of the insertion end of the quick-connect male head. The self-locking assembly includes a self-locking claw mounting groove, a self-locking claw, and a spring. One end of the self-locking claw is connected to the self-locking claw mounting groove by a hinge. The other end of the self-locking claw is welded to the spring. The other end of the spring is welded to the bottom surface of the self-locking claw mounting groove.

[0008] Preferably, both the quick-connect female and quick-connect male connectors have a hollow, through-hole structure inside.

[0009] Preferably, the induction coil is a split type, with one end of the induction coil welded to the quick-connect female connector and the other end of the induction coil welded to the quick-connect male connector.

[0010] Preferably, the first water delivery cavity of the quick-connect female connector has a sloping structure with a slope of 2°, and the insertion end of the quick-connect male connector has a sloping structure adapted to the first water delivery cavity of the quick-connect female connector.

[0011] Preferably, the inner wall of the pressure plate ring has a sloping structure with a slope of 6°-12°, and the pressure plate ring is made of epoxy resin material, which is snapped into the quick-connect female head.

[0012] Preferably, the insertion end of the quick-connect male connector and the second water supply cavity of the quick-connect female connector are in clearance fit, and a sealing gasket is fitted at the joint between the second water supply cavity of the quick-connect female connector and the quick-connect male connector.

[0013] Preferably, the self-locking claw is a plate with a parallelogram cross-section. Under the action of the spring, the self-locking claw swings relative to the bottom surface of the self-locking claw mounting groove. Under pressure, the self-locking claw can compress the spring so that it locks itself into the self-locking claw mounting groove.

[0014] Compared with existing technologies, the advantages of this invention are as follows: the split-type induction coil is connected via a quick-connect assembly, making assembly and disassembly convenient; the quick-connect assembly has a hollow, through-type structure, allowing for the transfer of cooling water and meeting the high-temperature environment during induction coil heating; the male quick-connect connector is equipped with a self-locking claw, which, after the male quick-connect connector is inserted into the female quick-connect connector, opens and presses against the self-locking platform of the female quick-connect connector, achieving self-locking and making the connection more stable and reliable. In summary, this self-locking quick-connect device has a simple structure, is easy to assemble and disassemble, provides a reliable connection, and can adapt to the high-temperature conditions of induction heating. Attached Figure Description

[0015] Figure 1 This is an isometric view of the induction coil and quick-connect assembly of this utility model; Figure 2 This is an isometric view of the quick-connect female connector of this utility model; Figure 3 This is a front sectional view of the quick-connect female connector of this utility model; Figure 4 This is an isometric view of the quick-connect male connector of this utility model; Figure 5 This is a front sectional view of the quick-connect male connector of this utility model; Figure 6 This is a partial enlarged view of the self-locking component of this utility model.

[0016] In the diagram: 1 is the induction coil, 2 is the quick-connect assembly, 3 is the quick-connect female connector, 4 is the first water supply chamber of the quick-connect female connector, 5 is the self-locking platform, 6 is the pressure plate ring, 7 is the second water supply chamber of the quick-connect female connector, 8 is the quick-connect male connector, 9 is the self-locking assembly, 10 is the self-locking claw mounting slot, 11 is the self-locking claw, 12 is the spring, and 13 is the water supply chamber of the quick-connect male connector. 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] Please see Figures 1-6 This utility model provides a technical solution: a self-locking quick-connect device for connecting an induction coil, including an induction coil 1, a quick-connect assembly 2, a quick-connect female connector 3, a quick-connect male connector 8, and a self-locking assembly 9; the induction coil 1 is provided with two sets of multiple quick-connect assemblies 2 arranged in a linear array parallel to its axis; the quick-connect assembly 2 includes a quick-connect female connector 3 and a quick-connect male connector 8; The quick-connect female connector 3 includes a first water supply chamber 4, a self-locking platform 5, a pressure plate ring 6, and a second water supply chamber 7. The first water supply chamber 4 is provided at the insertion end of the quick-connect female connector 3. The end of the first water supply chamber 4 away from the insertion end is the self-locking platform 5. The pressure plate ring 6 and the second water supply chamber 7 are arranged in sequence on the side of the self-locking platform 5 away from the insertion end. The first water supply chamber 4 and the second water supply chamber 7 are connected. The quick-connect male connector 8 includes a self-locking component 9 and a quick-connect male connector water delivery chamber 13. There are four self-locking components 9 arranged in a circumferential array on the outer edge of the insertion end of the quick-connect male connector 8. The self-locking component 9 includes a self-locking claw mounting groove 10, a self-locking claw 11 and a spring 12. One end of the self-locking claw 11 is connected to the self-locking claw mounting groove 10 by a hinge, and the other end of the self-locking claw 11 is welded to the spring 12. The other end of the spring 12 is welded to the bottom surface of the self-locking claw mounting groove 10. It is understandable that when the quick-connect female connector 3 and the quick-connect male connector 8 are connected, the quick-connect male connector 8 enters the first water supply cavity 4 of the quick-connect female connector 3. At this time, the four self-locking claws 11 of the quick-connect male connector 8 pass through the first water supply cavity 4 of the quick-connect female connector and press against the self-locking platform 5. That is, the spring 12 pushes up the self-locking claws 11 and makes them abut against the self-locking platform 5. After the connection is made, it can prevent the quick-connect male connector 8 and the quick-connect female connector 3 from coming out, realizing the self-locking of the quick-connect male connector 8 and the quick-connect female connector 3, making the connection more stable and reliable. At the same time, the cavities inside the quick-connect male connector 8 and the quick-connect female connector 3 are connected, and the cooling water can circulate. When the male connector 8 is separated from the female connector 3, the male connector 8 is inserted into the female connector 3. At this time, the insertion end of the male connector 8 moves axially along the second water supply chamber 7 of the female connector. The pressure plate ring 6 continues to press down the self-locking claw 11 until the self-locking claw 11 is locked into the self-locking claw mounting groove 10. Then, the male connector 8 is pulled out from the female connector 3 in the opposite direction, realizing the separation of the split induction coil 1 and realizing the rapid assembly and disassembly of the induction coil 1. It has the advantages of simple structure, convenient assembly and disassembly, reliable connection, and adaptability to high temperature working conditions during induction heating. Furthermore, the quick-connect female connector 3 and quick-connect male connector 8 are both hollow through-structures. That is, after the quick-connect female connector 3 and quick-connect male connector 8 are connected, the first water supply chamber 4 of the quick-connect female connector, the second water supply chamber 7 of the quick-connect female connector, and the water supply chamber 13 of the quick-connect male connector are connected, as well as the hollow flow channel of the induction coil 1, which can realize the flow of cooling water and facilitate the cooling of the induction coil 1 and the quick-connect assembly 2. Furthermore, the first water delivery cavity 4 of the quick-connect female head is a sloping structure with a slope of 2°. The insertion end of the quick-connect male head 8 is provided with a sloping structure that is compatible with the first water delivery cavity 4 of the quick-connect female head. By adopting a structure with a certain inclination angle, namely a conical seal, the sealing effect is better when the insertion end of the quick-connect male head 8 contacts the first water delivery cavity 4 of the quick-connect female head. Furthermore, the inner wall of the pressure plate ring 6 is a sloping structure with a slope of 6°-12°. The pressure plate ring 6 is made of epoxy resin material and is snapped into the quick-connect female head 3. By setting a slope in the pressure plate ring 6, the insertion end of the quick-connect male head 8 contacts the inner wall of the pressure plate ring 6. When the quick-connect male head 8 moves axially, the self-locking claw 11 can be pressed into the self-locking claw mounting groove 10 by the pressure plate ring 6. Furthermore, the insertion end of the quick-connect male connector 8 and the second water supply chamber 7 of the quick-connect female connector are in clearance fit. A sealing gasket is installed at the joint between the second water supply chamber 7 of the quick-connect female connector and the quick-connect male connector 8, which has a good sealing effect and prevents cooling water from overflowing and leaking. Furthermore, the self-locking claw 11 is a plate with a parallelogram cross-section. Under the force of the spring 12, the self-locking claw 11 swings relative to the bottom surface of the self-locking claw mounting groove 10. Under pressure, the self-locking claw 11 can compress the spring 12 until it is locked into the self-locking claw mounting groove 10. That is, when the quick-connect male connector 8 separates from the quick-connect female connector 3, the quick-connect male connector 8 is further inserted into the quick-connect female connector 3. At this time, the insertion end of the quick-connect male connector 8 moves axially along the second water delivery chamber 7 of the quick-connect female connector, and the pressure plate ring 6 continues to press down on the self-locking claw 11 until the self-locking claw 11 is locked. The self-locking claw 11 is inserted into the self-locking claw mounting groove 10. The self-locking claw 11 and the self-locking claw mounting groove 10 are partially interference fit. When the self-locking claw 11 is locked into the self-locking claw mounting groove 10 under the action of the pressure plate ring 6, even under the elastic force of the spring 12, the self-locking claw 11 will not pop out from the self-locking claw mounting groove 10. Thus, during the process of the quick-connect male head 8 being pulled out from the quick-connect female head 3, the self-locking claw 11 will not collide with the self-locking platform 5, which facilitates the smooth disengagement of the quick-connect male head 8. When the quick-connect male head 8 is inserted into the quick-connect female head 3 next time, the self-locking claw 11 is taken out from the self-locking claw mounting groove 10 to open it. In addition, the induction coil 1 is a split type, with one end of the induction coil 1 welded to the quick-connect female connector 3 and the other end of the induction coil 1 welded to the quick-connect male connector 8.

[0019] Working principle: When connecting the split-type induction coil 1 with the quick-connect assembly 2, the quick-connect male connector 8 at one end of the induction coil 1 is inserted into the quick-connect female connector 3 at the other end of the induction coil 1 until the four self-locking claws 11 of the quick-connect male connector 8 press against the self-locking platform 5 through the first water supply cavity 4 of the quick-connect female connector, thereby achieving self-locking between the quick-connect male connector 8 and the quick-connect female connector 3. At this time, the insertion end of the quick-connect male connector 8 extends into the second water supply cavity 7 of the quick-connect female connector, and the cavities inside the quick-connect male connector 8 and the quick-connect female connector 3 are connected. When separating the split-type induction coil 1 with the quick-connect assembly 2, the quick-connect male connector 8 is further inserted into the quick-connect female connector 3. At this time, the insertion end of the quick-connect male connector 8 moves axially along the second water supply cavity 7 of the quick-connect female connector, and the pressure plate ring 6 continues to press down on the self-locking claws 11 until the self-locking claws 11 are locked into the self-locking claw mounting groove 10. Then, the quick-connect male connector 8 is pulled out from the quick-connect female connector 3 in the opposite direction, thereby achieving the separation of the split-type induction coil 1.

[0020] 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 self-locking quick-connect device for connecting an induction coil, characterized in that: It includes an induction coil (1), a quick-connect assembly (2), a quick-connect female connector (3), a quick-connect male connector (8), and a self-locking assembly (9); the induction coil (1) is provided with two sets of multiple quick-connect assemblies (2) arranged in a linear array parallel to its axis, the quick-connect assembly (2) includes the quick-connect female connector (3) and the quick-connect male connector (8), the quick-connect female connector (3) includes a quick-connect female connector first water supply chamber (4), a self-locking platform (5), a pressure plate ring (6), and a quick-connect female connector second water supply chamber (7), the insertion end of the quick-connect female connector (3) is provided with the quick-connect female connector first water supply chamber (4), the end of the quick-connect female connector first water supply chamber (4) away from the insertion end is the self-locking platform (5), the self-locking platform (9) 5) The pressure plate ring (6) and the second water supply cavity (7) of the quick-connect female head are arranged in sequence on the side away from the insertion end; the quick-connect male head (8) includes the self-locking component (9) and the quick-connect male head water supply cavity (13). There are 4 self-locking components (9) arranged in a circumferential array on the outer edge of the insertion end of the quick-connect male head (8). The self-locking component (9) includes a self-locking claw mounting groove (10), a self-locking claw (11) and a spring (12). One end of the self-locking claw (11) is connected to the self-locking claw mounting groove (10) by a hinge. The other end of the self-locking claw (11) is welded to the spring (12). The other end of the spring (12) is welded to the bottom surface of the self-locking claw mounting groove (10).

2. The self-locking quick-connect device for connecting an induction coil according to claim 1, characterized in that: The quick-connect female connector (3) and quick-connect male connector (8) are both hollow through-structures.

3. The self-locking quick-connect device for connecting an induction coil according to claim 1, characterized in that: The induction coil (1) is a split type, with one end of the induction coil (1) welded to the quick-connect female connector (3) and the other end of the induction coil (1) welded to the quick-connect male connector (8).

4. A self-locking quick-connect device for connecting an induction coil according to claim 1, characterized in that: The first water delivery cavity (4) of the quick-connect female head is a sloping structure with a slope of 2°. The insertion end of the quick-connect male head (8) is provided with a sloping structure that is compatible with the first water delivery cavity (4) of the quick-connect female head.

5. A self-locking quick-connect device for connecting an induction coil according to claim 1, characterized in that: The inner wall of the pressure plate ring (6) is a sloping structure with a slope of 6°-12°. The pressure plate ring (6) is made of epoxy resin material and is installed inside the quick-connect female head (3).

6. A self-locking quick-connect device for connecting an induction coil according to claim 1, characterized in that: The insertion end of the quick-connect male connector (8) and the second water supply cavity (7) of the quick-connect female connector are in clearance fit, and a sealing gasket is installed at the joint between the second water supply cavity (7) of the quick-connect female connector and the quick-connect male connector (8).

7. A self-locking quick-connect device for connecting an induction coil according to claim 1, characterized in that: The self-locking claw (11) is a plate with a parallelogram cross section. Under the action of the spring (12), the self-locking claw (11) swings relative to the bottom surface of the self-locking claw mounting groove (10) in the self-locking claw mounting groove (10). Under the action of pressure, the self-locking claw (11) can compress the spring (12) until it is locked into the self-locking claw mounting groove (10).

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