A rotatable docking electrical connector
By designing a rotatable docking electrical connector, the difficulties in plugging and unplugging three-phase five-wire aviation plugs and sockets and the safety issues have been solved, enabling convenient connection and disconnection and avoiding plug damage and electric shock accidents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PANSHI AOSEN ELECTRIC POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-14
AI Technical Summary
Existing three-phase five-wire aviation plugs and sockets have copper posts that are difficult to insert and remove and lack protection, making them prone to damage and electric shock accidents.
Design a rotatable docking electrical connector, which adopts a structure including a housing, a circular ring plate, a docking assembly, and a return spring. It achieves connection and disconnection by rotating and locking, and uses a return spring to prevent impact damage and electric shock.
It enables convenient plugging and unplugging, avoiding damage to plugs and sockets and the risk of electric shock, thus improving safety and operational efficiency.
Smart Images

Figure CN224502516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, and in particular to a rotatable docking electrical connector. Background Technology
[0002] Electrical connectors, also known as plugs and sockets, are electromechanical components used to connect two active devices. They establish conductive paths between blocked or isolated nodes in a circuit by transmitting current or signals, ensuring a stable flow of current or signals.
[0003] Existing three-phase five-wire aviation plugs and sockets use a structure similar to traditional pins. The five copper pins of the male connector are inserted into the corresponding holes of the female connector. In actual electrical work, there is often a need to plug and unplug the male connector. Because the copper pins of the male connector are relatively long, the copper pins of the male connector have to move a long distance in the corresponding holes of the female connector, making it very difficult to plug and unplug the copper pins of the male connector, which can easily cause damage to both the male and female connectors.
[0004] In addition, the copper pins of the male connector are exposed without any protection, which is unsafe and can easily lead to electric shock accidents. Therefore, a rotatable mating electrical connector is proposed. Utility Model Content
[0005] In view of this, the present invention provides a rotatable docking electrical connector to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.
[0006] The technical solution of this utility model embodiment is implemented as follows: A rotatable docking electrical connector includes two housings. Circular ring plates are respectively provided on the outer walls of the two housings. The housings and the circular ring plates are integrally formed. A docking assembly is provided on the outer walls of the two housings. A circular fixing plate is provided on the inner wall of each housing. A cylinder is attached to the inner wall of each housing. A first circular groove and a third circular through hole are evenly provided on one side of the circular fixing plate. A second circular groove and a second circular through hole are evenly provided on one side of the cylinder. A return spring is provided on the inner wall of the first circular groove. The end of the return spring away from the first circular groove is located in the corresponding second circular groove. A pair of contact heads are attached to the inner wall of the second circular through hole. A conductive rod is provided on one side of the pair of contact heads. The conductive rod passes through the corresponding second circular through hole and the third circular through hole. A U-shaped limiting block is embedded in the outer wall of the conductive rod. Contact springs are evenly provided on one side of the circular fixing plate. One end of the contact spring is located on the side corresponding to the pair of contact heads. The contact spring is sleeved on the corresponding conductive rod.
[0007] In some embodiments, the docking assembly includes two metal fixing ring plates and a plurality of bolts, wherein the two metal fixing ring plates are respectively disposed on the outer walls of the two housings, and the adjacent side of the two metal fixing ring plates is disposed on the repulsive side of the two circular ring plates; one side of each of the metal fixing ring plates and the circular ring plates is provided with an arc-shaped channel and a first circular through hole in an annular array, and the first circular through hole is connected to the corresponding arc-shaped channel; one side of the circular ring plate is provided with a fourth circular through hole in an annular array, and one side of the metal fixing ring plate is provided with a threaded through hole in an annular array; the outer walls of the plurality of bolts are threadedly connected to the inner walls of the corresponding threaded through holes, and the plurality of bolts pass through the corresponding fourth circular through hole, the first circular through hole, and the arc-shaped channel; the outer walls of the plurality of bolts are fitted against the inner walls of the corresponding arc-shaped channel.
[0008] In some embodiments, the outer wall of the conductive rod is symmetrically provided with slots, and the outer wall of the U-shaped limiting block is attached to the inner wall of the slot.
[0009] In some embodiments, the outer wall of the housing is provided with a protective sleeve.
[0010] In some embodiments, the contact head is integrally formed with the conductive rod.
[0011] In some embodiments, the housing, the circular ring plate, the protective sleeve, the circular fixing plate, and the cylinder are made of insulating material.
[0012] The present invention has the following advantages due to the adoption of the above technical solution:
[0013] I. This utility model uses a docking assembly to rotate and lock the two housings together, thereby causing the two second circular through holes to rotate and press, which in turn causes the corresponding contact heads to fit together for power transmission. During connection, the contact heads rub against each other, which has the effect of automatically cleaning the contact heads. After use, simply reverse the docking assembly to release the two housings and disconnect the power. This saves time and effort and effectively eliminates the defects of traditional three-phase five-wire aviation plugs and sockets that are difficult to plug and unplug and inconvenient to use.
[0014] Second, this utility model uses the elastic potential energy of the return spring to drive the cylinder to move outward, which facilitates the movement of the contact head and the conductive rod into the second circular through hole. This avoids damage to the contact head from external impacts and also avoids electric shock accidents that may occur due to operational errors.
[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a structural diagram of the present invention;
[0018] Figure 2 This is a rear view structural diagram of the present invention;
[0019] Figure 3 This utility model Figure 2 Internal structure diagram;
[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram of area A;
[0021] Figure 5 This utility model Figure 3 Enlarged structural diagram of region B;
[0022] Figure 6 This is a structural diagram of the protective state of this utility model;
[0023] Figure 7 This utility model Figure 6 Internal structure diagram;
[0024] Figure 8 This is a structural diagram showing the connection between the conductive rod and the U-shaped limiting block of this utility model;
[0025] Figure 9 This utility model Figure 8 Enlarged structural diagram of region C.
[0026] Reference numerals: 1. Housing; 2. Docking assembly; 3. Circular ring plate; 4. Protective sleeve; 5. Arc-shaped channel; 6. First circular through hole; 7. Circular fixing plate; 8. Cylinder; 9. Second circular through hole; 10. Contact head; 11. Conductive rod; 12. Contact spring; 13. First circular groove; 14. Second circular groove; 15. Return spring; 16. Third circular through hole; 17. U-shaped limiting block; 18. Threaded through hole; 19. Fourth circular through hole; 20. Metal fixing ring plate; 21. Bolt; 30. Slot. Detailed Implementation
[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0028] It is important to note that terms such as "first," "second," "symmetric," "array," "set in," and "set with" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.
[0029] In this invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "fixation" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the accompanying drawings and specific circumstances.
[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0031] like Figures 1-9As shown, this utility model embodiment provides a rotatable docking electrical connector, including two housings 1. The outer walls of the two housings 1 are respectively provided with circular ring plates 3. The housings 1 and the circular ring plates 3 are integrally formed. The outer walls of the two housings 1 are provided with docking components 2. The inner walls of the housings 1 are provided with circular fixing plates 7. A cylinder 8 is attached to the inner wall of the housings 1. A first circular groove 13 and a third circular through hole 16 are evenly formed on one side of the circular fixing plate 7. A second circular groove 14 and a second circular through hole 9 are evenly formed on one side of the cylinder 8. The inner wall of the first circular groove 13 is provided with... A return spring 15 is provided, with one end of the return spring 15 away from the first circular groove 13 set in the corresponding second circular groove 14. The inner wall of the second circular through hole 9 is fitted with a pair of contact heads 10. A conductive rod 11 is provided on one side of the pair of contact heads 10. The conductive rod 11 passes through the corresponding second circular through hole 9 and the third circular through hole 16. A U-shaped limiting block 17 is embedded in the outer wall of the conductive rod 11. Contact springs 12 are evenly arranged on one side of the circular fixing plate 7. One end of the contact spring 12 is set on the side corresponding to the contact head 10. The contact spring 12 is sleeved on the corresponding conductive rod 11.
[0032] In this embodiment, specifically, the docking assembly 2 includes two metal fixing ring plates 20 and a plurality of bolts 21. The two metal fixing ring plates 20 are respectively disposed on the outer walls of the two housings 1, and the adjacent side of the two metal fixing ring plates 20 is disposed on the repulsive side of the two circular ring plates 3. Both the metal fixing ring plates 20 and the circular ring plates 3 have annularly arranged arc-shaped channels 5 and first circular through holes 6 on one side, with the first circular through holes 6 communicating with the corresponding arc-shaped channels 5. The circular ring plate 3 has annularly arranged fourth circular through holes 19 on one side, and the metal fixing ring plates 20 have annularly arranged threaded through holes 18 on one side. The outer walls of the plurality of bolts 21 are threadedly connected to the inner walls of the corresponding threaded through holes 18, and the plurality of bolts 21... 1. The bolts 21 pass through the corresponding fourth circular through hole 19, the first circular through hole 6, and the arc-shaped channel 5. The outer walls of several bolts 21 are attached to the inner walls of the corresponding arc-shaped channel 5. The two metal fixing ring plates 20 are set up to drive the corresponding bolts 21 through the corresponding first circular through hole 6. Then, the relevant personnel drive the two housings 1 to rotate relative to each other. The two housings 1 drive the two circular ring plates 3 to rotate relative to each other. The two circular ring plates 3 drive the two metal fixing ring plates 20 to rotate relative to each other. The two metal fixing ring plates 20 drive the corresponding bolts 21 to rotate, so that the bolts 21 rotate in the corresponding arc-shaped channel 5. Then, the relevant personnel use tools to rotate the bolts 21 in the corresponding threaded through hole 18, thereby fixing the two circular ring plates 3.
[0033] In this embodiment, specifically, the outer wall of the conductive rod 11 is symmetrically provided with slots 30, and the outer wall of the U-shaped limiting block 17 is attached to the inner wall of the slot 30. The U-shaped limiting block 17 is used to lock the conductive rod 11 in the slot 30 to limit the position of the conductive rod 11.
[0034] In this embodiment, specifically, a protective sleeve 4 is provided on the outer wall of the housing 1. The protective sleeve 4 is used to protect the connection between the cable (not shown in the figure) and the conductive rod 11, to prevent rainwater erosion and damage, and to protect personnel safety.
[0035] In this embodiment, specifically, the contact head 10 and the conductive rod 11 are integrally formed.
[0036] In this embodiment, specifically, the shell 1, the circular ring plate 3, the protective sleeve 4, the circular fixing plate 7, and the cylinder 8 are made of insulating material.
[0037] In operation, the present invention works as follows: Personnel hold two housings 1 and move the corresponding two circular ring plates 3 relative to each other. The two circular ring plates 3 move the two metal fixing ring plates 20, which in turn move the corresponding bolts 21 through the corresponding first circular through holes 6. Then, personnel rotate the two housings 1 relative to each other, which in turn rotate the two circular ring plates 3 relative to each other. The two circular ring plates 3 then rotate the two metal fixing ring plates 20 relative to each other, which in turn rotate the corresponding bolts 21, causing the bolts 21 to rotate within the corresponding arc-shaped channel 5. Finally, personnel use tools to rotate the bolts 21 within the corresponding threaded through holes 18, thereby fixing the two circular ring plates 3.
[0038] Both housings 1 are driven by a circular fixing plate 7, a conductive rod 11 and a contact head 10 to rotate the cylinder 8 relative to each other, thereby causing the two second circular through holes 9 to rotate and squeeze, thereby causing the two second circular through holes 9 to drive the corresponding contact head 10 to fit together for transmitting electrical energy.
[0039] After use, personnel only need to reverse the above steps to release the power to the two housings 1. The elastic potential energy of the reset spring 15 drives the cylinder 8 to move outward, which facilitates the movement of the contact head 10 and the conductive rod 11 into the second circular through hole 9. This avoids damage to the contact head 10 from external impacts and also avoids electric shock accidents that may occur due to operational errors.
[0040] The contact spring 12 is used to increase the pressure on the contact head 10, which can improve the stability of the connection between the two contact heads 10 and avoid incomplete connection. The contact head 10 and the conductive rod 11 at the center of the cylinder 8 are the neutral line and are not affected by rotation.
[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A rotatable mating electrical connector, comprising two housings (1), characterized in that: The outer walls of the two housings (1) are respectively provided with circular ring plates (3), the housings (1) and the circular ring plates (3) are integrally formed, the outer walls of the two housings (1) are provided with docking components (2), the inner walls of the housings (1) are provided with circular fixing plates (7), the inner walls of the housings (1) are fitted with cylinders (8), the circular fixing plates (7) are evenly provided with a first circular groove (13) and a third circular through hole (16) on one side, the cylinders (8) are evenly provided with a second circular groove (14) and a second circular through hole (9) on one side, the inner walls of the first circular groove (13) are provided with a return spring (15), the return spring (15) is away from the first circular groove (13) and the cylinders (8) are evenly provided with a second circular groove (14) and a second circular through hole (9), ... One end of a circular groove (13) is disposed in the corresponding second circular groove (14). The inner wall of the second circular through hole (9) is fitted with a pair of contact heads (10). A conductive rod (11) is disposed on one side of the pair of contact heads (10). The conductive rod (11) passes through the corresponding second circular through hole (9) and the third circular through hole (16). A U-shaped limiting block (17) is embedded in the outer wall of the conductive rod (11). A contact spring (12) is evenly disposed on one side of the circular fixing plate (7). One end of the contact spring (12) is disposed on the side corresponding to the pair of contact heads (10). The contact spring (12) is sleeved on the corresponding conductive rod (11).
2. The rotatable mating electrical connector according to claim 1, characterized in that: The docking assembly (2) includes two metal fixing ring plates (20) and several bolts (21), wherein, The two metal fixing ring plates (20) are respectively disposed on the outer walls of the two housings (1), and the adjacent side of the two metal fixing ring plates (20) is disposed on the repulsive side of the two circular ring plates (3); Both the metal fixing ring plate (20) and the circular ring plate (3) have annular arrays of arc-shaped channels (5) and first circular through holes (6) on one side, and the first circular through hole (6) is connected to the corresponding arc-shaped channel (5). The circular ring plate (3) has a fourth circular through hole (19) arranged in an annular array on one side, and the metal fixing ring plate (20) has a threaded through hole (18) arranged in an annular array on one side. The outer wall threads of several bolts (21) are connected to the inner wall of the corresponding threaded through hole (18), and the several bolts (21) pass through the corresponding fourth circular through hole (19), the first circular through hole (6) and the arc-shaped channel (5). The outer walls of several bolts (21) are attached to the inner walls of the corresponding arc-shaped channels (5).
3. The rotatable mating electrical connector according to claim 1, characterized in that: The outer wall of the conductive rod (11) is symmetrically provided with slots (30), and the outer wall of the U-shaped limiting block (17) is attached to the inner wall of the slot (30).
4. The rotatable mating electrical connector according to claim 1, characterized in that: The outer wall of the housing (1) is provided with a protective sleeve (4).
5. The rotatable mating electrical connector according to claim 1, characterized in that: The contact head (10) and the conductive rod (11) are integrally formed.
6. The rotatable mating electrical connector according to claim 4, characterized in that: The housing (1), the circular ring plate (3), the protective sleeve (4), the circular fixing plate (7), and the cylinder (8) are made of insulating material.