Anti-falling electric plug board

Abstract

The utility model discloses an anti-loosening and anti-falling plugboard, which is characterized in that a plugboard cavity is formed by a main shell and a face shell, the face shell is provided with an adaptive groove, a jack and a tongue hole, and the plugboard cavity is provided with a clamping tongue linked with a power supply push switch. When the button of the power supply push switch is pressed down, the conductive chuck is powered on and the clamping tongue extends out to lock the plug, and when the button rebounds, power is cut off and the clamping tongue retracts. According to the utility model, anti-drop locking and power supply control are integrated into single button operation, so that the design is simplified, and misoperation can be effectively avoided; and low plugging force and high connection reliability are both considered, the problems that a traditional structure is complex in operation and easy to loosen are effectively solved, and the connector is suitable for high-vibration scenes such as electric automobiles.

Description

Technical Field

[0001] This utility model relates to the field of electrical appliances and electric vehicle accessories, specifically to an anti-disconnection power strip. Background Technology

[0002] In the field of electric vehicle technology, the reliability of the electrical connection system is directly related to the safety and operational stability of the entire vehicle. As the core interface for energy transmission, the reliability of the socket and plug connection is particularly critical. In high-voltage, high-current transmission scenarios, poor contact between the socket and plug can lead to micro-discharge phenomena, which accelerate the oxidation of the contact surface, creating a vicious cycle of increased contact resistance and abnormal temperature rise. Existing electric vehicles commonly experience the phenomenon of connectors becoming loose due to dynamic conditions such as driving vibration and mechanical shock. This phenomenon is particularly prominent in commercial vehicles and high-range models.

[0003] Existing anti-loosening structures for sockets and plugs often employ excessive clamping designs, resulting in single insertion and removal forces exceeding 80N, surpassing the ergonomically recommended threshold of 50N. While mechanical locking mechanisms or threaded fastenings can improve connection stability, they have significant drawbacks: locking mechanisms require additional steps, reducing insertion and removal efficiency and impacting user experience; threaded structures present the risks of time-consuming tightening operations and secondary loosening due to thread wear. Furthermore, these anti-loosening structures typically include additional operating elements, which can easily lead to accidental operation in conjunction with the power strip's own power button.

[0004] Therefore, there is an urgent need to develop a new type of plug that prevents loosening and falling off, so as to maintain the stability of electrical connection under continuous vibration conditions during vehicle operation and meet the requirements of high frequency and low operating force for plugging and unplugging. Utility Model Content

[0005] To resolve the technical contradiction between the anti-loosening performance and the ease of insertion and removal of existing anti-loosening sockets, this utility model provides an anti-disconnection socket.

[0006] The technical solution adopted by this utility model is as follows: an anti-disconnection socket, comprising: a main shell; a front shell, which is integrally installed with the main shell to form a socket cavity, wherein the surface of the front shell is provided with an adapter groove matching the shape of the plug and a socket hole matching the pins of the plug, and a tongue hole is provided on the circumferential wall of the adapter groove; a conductive clamp, which is disposed in the socket cavity and matches the socket hole for electrical connection with the pin; a latch, which is movably installed in the socket cavity and has a first position extending out of the tongue hole and a second position retracted from the tongue hole; a power push switch, which is disposed in the socket cavity and has a button exposed in the button hole of the front shell; the button and the latch are linked, wherein when the button is pressed down, the conductive clamp is energized and the latch is in the first position, and when the button rebounds and resets, the conductive clamp is de-energized and the latch is in the second position.

[0007] Preferably, the device includes a locking block and a first elastic element. The locking block is slidably assembled in the insert cavity, with one end forming the latch. The first elastic element is supported between the locking block and the face shell, and the elastic force of the first elastic element causes the latch to tend towards the first position. The locking block has a first wedge, and the button has a second wedge. The first wedge and the second wedge form a wedge transmission mechanism. When the button rebounds and resets, the wedge transmission mechanism causes the latch to tend towards the second position.

[0008] Preferably, the second wedge is symmetrically arranged on the left and right sides of the button, and the first wedge is symmetrically arranged on the left and right sides of the first elastic member.

[0009] Preferably, the upper surface of the latch is an inclined surface that gradually rises from the outer end inward.

[0010] Preferably, the first elastic element is a cylindrical spring, and a limiting post is provided inside the locking block for the first elastic element.

[0011] Preferably, the power push switch includes: a sliding claw sleeve with indexing teeth, the upper end of which forms a guide slope; a push rod with guide grooves evenly distributed around its circumference, the upper end of which contacts and engages with the button, and the lower end of which forms a sloped sliding engagement with the guide slope; a guide rail sleeve with guide rails evenly distributed around its inner surface, the guide rails slidingly engaging with the indexing teeth and the guide grooves, the lower end of which forms a slot matching the guide slope; a conductive moving piece with moving contacts at both ends; a terminal block for fixing the wiring terminal and the stationary contact; a second elastic element disposed between the sliding claw sleeve and the conductive moving piece, causing the moving contact to tend to move closer to the stationary contact; and a third elastic element disposed between the terminal block and the conductive moving piece, causing the moving contact to tend to separate from the stationary contact.

[0012] Preferably, it further includes a safety card and a fourth elastic element; the safety card is slidably installed in the insertion plate cavity and has transition holes corresponding one-to-one with the insertion holes, and the transition hole corresponding to the ground wire pin has an insertion slope; the safety card has a third position where, when the plug is pulled out, it moves under the action of the fourth elastic element, causing the transition hole to be misaligned with the insertion hole, and a fourth position where, when the plug is inserted, it moves under the action of the ground wire pin and the insertion slope, causing the transition hole to be aligned with the insertion hole.

[0013] This utility model has the following beneficial effects:

[0014] 1. Integrated linkage anti-dislodgement structure: Through the mechanical linkage design of the button and the latch, the conductive clamp is energized and the latch is locked when the plug is inserted. One button achieves dual functions, avoiding accidental operation;

[0015] 2. Low operating force and anti-loosening: Through the cooperation of the power switch and the latch, the latch of the plug plate and the locking hole of the plug can be quickly connected or disconnected, solving the problems of excessive operating force or complicated operation in traditional structures. This achieves adaptive locking under dynamic working conditions and optimizes user-friendly operation.

[0016] 3. Unobstructed plug insertion: The beveled design of the latch allows the locking block to be automatically pushed open when the plug is inserted. Whether the latch is extended or retracted, the plug can be inserted normally, while also protecting the latch from damage caused by external forces.

[0017] 4. Safety protection structure: The pilot protection mechanism consisting of the safety card and the transition hole forces the ground wire pin to contact first and trigger the alignment of the transition hole to avoid accidental connection of the live wire / neutral wire;

[0018] 5. Dustproof and waterproof: When the plug is unplugged, the socket is sealed by a safety clip, which prevents dust and water from entering, thus improving safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external appearance of an embodiment of the present utility model.

[0020] Figure 2 This is an exploded view of an embodiment of the present invention.

[0021] Figure 3 This is a cross-sectional view of an embodiment of the present invention (at the power button switch).

[0022] Figure 4 This is a schematic diagram of the locking block in an embodiment of this utility model.

[0023] Figure 5 This is a schematic diagram of the security card in an embodiment of this utility model.

[0024] Main shell 1;

[0025] Faceplate 2, adapter slot 2.1, insertion hole 2.2, tongue hole 2.3;

[0026] Insertion plate cavity 3;

[0027] Conductive chuck 4;

[0028] Locking block 5, latch 5.1, first wedge 5.2, inclined surface 5.3, limiting post 5.4;

[0029] First elastic element 6;

[0030] Button 7, second wedge 7.1;

[0031] Sliding claw sleeve 8, indexing teeth 8.1, guide bevel 8.2;

[0032] Press rod 9, guide groove 9.1;

[0033] Guide rail sleeve 10, guide rail 10.1, slot 10.2;

[0034] Conductive moving piece 11;

[0035] Moving contact 12;

[0036] Terminal block 13;

[0037] Terminal block 14;

[0038] static contact 15;

[0039] Second elastic element 16;

[0040] Third elastic element 17;

[0041] Safety card 18, transition hole 18.1, insertion bevel 18.2;

[0042] Fourth elastic element 19. Detailed Implementation

[0043] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0044] In the embodiments, such as Figures 1-5The diagram shows an anti-disconnection power strip, comprising: a main shell 1; a front shell 2, integrally mounted with the main shell 1 to form a power strip cavity 3, the surface of the front shell 2 having an adapter groove 2.1 matching the shape of the plug and a socket hole 2.2 matching the pins of the plug, the circumferential wall of the adapter groove 2.1 having a tongue hole 2.3; a conductive clamp 4, disposed within the power strip cavity 3, matching the socket hole 2.2, for electrical connection with the pins; a latch 5.1, movably mounted within the power strip cavity 3, having a first position extending from the tongue hole 2.3 and a second position retracted from the tongue hole 2.3; a power push switch, disposed within the power strip cavity 3, having a button 7 exposed through a button hole in the front shell 2; the button 7 and the latch 5.1 are linked, when the button 7 is pressed down, the conductive clamp 4 is energized and the latch 5.1 is in the first position, when the button 7 springs back to its original position, the conductive clamp 4 is de-energized and the latch 5.1 is in the second position. This embodiment achieves automatic locking and synchronous energization when the plug is inserted through the mechanical linkage between button 7 and latch 5.1. When button 7 is pressed down, the latch extends to lock the plug while the conductive clamp 4 is energized, avoiding the risk of accidental activation caused by step-by-step operation in traditional structures. Moreover, a single button 7 integrates locking and on / off functions, reducing the number of operating components and lowering the probability of accidental operation.

[0045] In the embodiments, such as Figures 2-4 As shown, the device includes a locking block 5 and a first elastic element 6. The locking block 5 is slidably mounted in the insertion plate cavity 3, with one end forming a latch 5.1. The first elastic element 6 is supported between the locking block 5 and the faceplate 2. The elastic force of the first elastic element 6 causes the latch 5.1 to tend towards a first position. The locking block 5 has a first wedge 5.2, and the button 7 has a second wedge 7.1. The first wedge 5.2 and the second wedge 7.1 form a wedge transmission mechanism. When the button 7 rebounds and resets, the wedge transmission mechanism causes the latch 5.1 to tend towards a second position. The wedge transmission mechanism formed by the first wedge 5.2 and the second wedge 7.1 converts the vertical movement of the button 7 into the horizontal displacement of the locking block 5. The plug locking force is dynamically adjusted through the elastic energy storage of the first elastic element 6. When the button fails unexpectedly, the first elastic element 6 can still keep the latch 5.1 in the first position, preventing the plug from accidentally coming out and improving the system's redundancy and safety.

[0046] In the embodiments, such as Figures 2-4 As shown, the second wedge 7.1 is symmetrically arranged on the left and right sides of the button 7, and the first wedge 5.2 is symmetrically arranged on the left and right sides of the first elastic member 6. The left-right symmetry of the second wedge 7.1 and the left-right symmetry of the first wedge 5.2 ensures that the force on both sides of the locking block 5 is even, avoiding jamming caused by wear on one side, improving the reliability of the action, and extending the service life of the mechanism.

[0047] In the embodiments, such as Figures 2-4As shown, the upper surface of the latch 5.1 is a slope 5.3 that gradually rises from the outer end inward. The gradient design of the latch slope 5.3 allows the plug to be smoothly pushed open by the locking block 5 when inserted, reducing insertion resistance. The slope 5.3 design of the latch 5.1 allows the plug to be automatically pushed open by the locking block 5 when inserted, enabling normal insertion of the plug regardless of whether the latch 5.1 is extended or retracted. At the same time, it protects the latch 5.1 from damage caused by external forces.

[0048] In the embodiments, such as Figures 2-4 As shown, the first elastic element 6 is a cylindrical spring, and a limiting post 5.4 is provided inside the locking block 5 for the first elastic element 6. One end of the first elastic element 6 is inserted into the limiting post 5.4, and the other end is supported on the support surface provided inside the face shell 2. The limiting post 5.4 constrains the compression path of the first elastic element 6, ensuring that the direction of the elastic force is consistent with the movement axis of the locking block 5, and avoiding fluctuations in the locking force caused by spring deflection.

[0049] In the embodiments, such as Figures 2-4 As shown, the power push-button switch includes: a sliding pawl sleeve 8 with indexing teeth 8.1, the upper end of which forms a guide slope 8.2; a push-button rod 9 with guide grooves 9.1 evenly distributed around its circumference, the upper end of which contacts and engages with the button 7, and the lower end of which forms a slope sliding engagement with the guide slope 8.2; and a guide rail sleeve 10 with guide rails 10.1 evenly distributed around its inner surface, the guide rails 10.1 slidingly engaging with the indexing teeth 8.1 and the guide grooves 9.1, the lower end of which forms a slope sliding engagement with the guide slope 8.2; and a guide rail sleeve 10 with guide rails 10.1 evenly distributed around its inner surface, the guide rails 10.1 slidingly engaging with the indexing teeth 8.1 and the guide grooves 9.1. The end forms a slot 10.2 that matches the guide slope 8.2; a conductive moving piece 11 has moving contacts 12 at both ends; a terminal block 13 is used to fix the wiring terminal 14 and the stationary contact 15; a second elastic member 16 is disposed between the sliding claw sleeve 8 and the conductive moving piece 11, so that the moving contact 12 tends to move closer to the stationary contact 15; a third elastic member 17 is disposed between the terminal block 13 and the conductive moving piece 11, so that the moving contact 12 tends to separate from the stationary contact 15.

[0050] The operation steps of the press-lock component in this embodiment are as follows:

[0051] (1) When button 7 is pressed, the pressing rod 9 moves downward along the axial direction. The guide grooves 9.1 evenly distributed around the pressing rod 9 form a sliding fit with the guide rail 10.1 of the guide rail sleeve 10, guiding the pressing rod 9 to move along a fixed trajectory. At this time, the guide slope 8.2 at the upper end of the indexing tooth 8.1 of the sliding pawl sleeve 8 contacts the lower end of the pressing rod 9, generating a radial component force, forcing the sliding pawl sleeve 8 to rotate circumferentially. Correspondingly, after button 7 descends, the second wedge 7.1 separates from the first wedge 5.2, and the locking block 5 slides down under the action of the first elastic member 6, causing the latch 5.1 to extend from the latch hole 2.3 and be in the first position.

[0052] (2) When the pressing rod 9 moves to the end of the guide rail 10.1, the indexing tooth 8.1 enters the slot 10.2 of the guide rail sleeve 10 under the action of the rebound force of the second elastic element 16. At this time, the rotation angle of the sliding pawl sleeve 8 causes the indexing tooth 8.1 to mesh with the slot 10.2, and the sliding pawl sleeve 8 is fixed in the low position, which in turn drives the second elastic element 16 and the conductive moving piece 11 to descend, thereby causing the two moving contacts 12 to contact the two stationary contacts 15.

[0053] (3) When pressed again, the pressing rod 9 moves downward along the guide rail, forcing the indexing teeth 8.1 of the sliding pawl sleeve 8 to disengage from the slot 10.2. The second elastic element 16 drives the pressing rod 9 to retract. At this time, the sliding pawl sleeve 8 disengages from the locked state during rotation.

[0054] (4) The indexing tooth 8.1 rotates with the sliding pawl sleeve 8, and the pressing rod 9 is fully reset along the guide rail under the action of the second elastic element 16. The conductive moving piece 11 rises under the action of the third elastic element 17, and the moving contact 12 separates from the two stationary contacts 15. Correspondingly, after the button 7 is reset, the second wedge 7.1 acts with the first wedge 5.2, and the locking block 5 slides accordingly, so that the latch 5.1 retracts from the latch hole 2.3 and is in the second position.

[0055] The power push switch in this embodiment is reliable. The sliding engagement and rotation of the indexing teeth 8.1 and the guide sleeve 10 enable the positioning of the sliding claw sleeve 8 at two different heights, thereby ensuring the reliable switching of the conductive moving piece 11 between the high and low positions, realizing the connection and disconnection of the power supply, and at the same time enabling the reliable switching of the latch 5.1 between the first position and the second position.

[0056] In the embodiments, such as Figure 2 , Figure 5 As shown, it also includes a safety clip 18 and a fourth elastic element 19. The safety clip 18 is slidably installed in the insertion plate cavity 3 and has a transition hole 18.1 corresponding to the insertion hole 2.2. The transition hole 18.1 corresponding to the ground wire pin has a plug-in inclined surface 18.2. The safety clip 18 has a third position where, when the plug is pulled out, it moves under the action of the fourth elastic element 19, causing the transition hole 18.1 to be misaligned with the insertion hole 2.2, and a fourth position where, when the plug is inserted, it moves under the action of the ground wire pin and the plug-in inclined surface 18.2, causing the transition hole 18.1 to be aligned with the insertion hole 2.2. In this embodiment, the safety clip 18 and the transition hole 18.1 constitute a pilot protection mechanism, which forces the longer ground wire pin to contact and trigger the alignment of the transition hole first, avoiding accidental connection of the live / neutral wire. Moreover, when the plug is pulled out, the safety clip 18 blocks the insertion hole 2.2, which has a dust and water prevention effect, improving safety.

[0057] Obviously, the above embodiments of this utility model are merely examples for illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Other obvious variations or modifications derived from the essential spirit of the present utility model still fall within the protection scope of the present utility model.

Claims

1. A power strip with anti-disconnection feature, characterized in that, include: Main shell (1); The face shell (2) is installed as a whole with the main shell (1) to form a plug cavity (3). The surface of the face shell (2) is provided with an adapter groove (2.1) that matches the shape of the plug and a plug hole (2.2) that matches the pins of the plug. The circumferential ring wall of the adapter groove (2.1) is provided with a tongue hole (2.3). A conductive clamp (4) is disposed in the insert plate cavity (3) and matches the insert hole (2.2) for electrical connection with the plug pin; The latch (5.1) is movably installed in the insert cavity (3) and has a first position extending out of the tongue hole (2.3) and a second position retracting out of the tongue hole (2.3); A power push switch is provided inside the insert cavity (3) and has a button (7) exposed through the button hole of the face shell (2). The button (7) is linked with the latch (5.1). When the button (7) is pressed down, the conductive clamp (4) is energized and the latch (5.1) is in the first position. When the button (7) springs back to reset, the conductive clamp (4) is de-energized and the latch (5.1) is in the second position.

2. The anti-disconnection power strip according to claim 1, characterized in that, Includes a locking block (5) and a first elastic element (6). The locking block (5) is slidably assembled in the insert cavity (3) and one end forms the latch (5.1). The first elastic element (6) is supported between the locking block (5) and the face shell (2). The elastic force of the first elastic element (6) causes the latch (5.1) to tend toward the first position. The locking block (5) has a first wedge (5.2), and the button (7) has a second wedge (7.1). The first wedge (5.2) and the second wedge (7.1) form a wedge transmission mechanism. When the button (7) springs back to reset, the wedge transmission mechanism causes the latch (5.1) to tend toward the second position.

3. The anti-disconnection power strip according to claim 2, characterized in that, The second wedge (7.1) is symmetrically arranged on the left and right sides of the button (7), and the first wedge (5.2) is symmetrically arranged on the left and right sides of the first elastic member (6).

4. The anti-disconnection power strip according to claim 2, characterized in that, The upper surface of the latch (5.1) is a slope (5.3) that gradually rises from the outer end inward.

5. The anti-disconnection power strip according to claim 2, characterized in that, The first elastic element (6) is a cylindrical spring, and the locking block (5) has a limiting post (5.4) inside the first elastic element (6).

6. The anti-disconnection power strip according to claim 1, characterized in that, The power push switch includes: The sliding pawl sleeve (8) has indexing teeth (8.1), and the upper end of the indexing teeth (8.1) forms a guide slope (8.2). The pressing rod (9) has guide grooves (9.1) evenly distributed around its circumference. Its upper end contacts and engages with the button (7), and its lower end forms a sliding engagement with the guide slope (8.2). The guide sleeve (10) has guide rails (10.1) evenly distributed around its inner surface. The guide rails (10.1) slide in cooperation with the indexing teeth (8.1) and the guide groove (9.1). The lower end of the guide rails (10.1) forms a groove (10.2) that matches the guide inclined surface (8.2). A conductive moving piece (11) has moving contacts (12) at both ends. Terminal block (13) is used to fix the wiring terminal (14) and stationary contact (15); The second elastic element (16) is disposed between the sliding claw sleeve (8) and the conductive moving piece (11), so that the moving contact (12) tends to move closer to the stationary contact (15); A third elastic element (17) is disposed between the terminal block (13) and the conductive moving piece (11) to make the moving contact (12) tend to separate from the stationary contact (15).

7. The anti-disconnection power strip according to claim 1, characterized in that, It also includes a safety card (18) and a fourth elastic element (19); the safety card (18) is slidably installed in the insert plate cavity (3) and has a transition hole (18.1) corresponding to the insertion hole (2.2) one by one. The transition hole (18.1) corresponding to the ground wire pin has a plug-in inclined surface (18.2). The security card (18) has a third position in which, when the plug is pulled out, it moves under the action of the fourth elastic member (19) to misalign the transition hole (18.1) with the socket (2.2), and a fourth position in which, when the plug is inserted, it moves under the action of the ground pin and the insertion ramp (18.2) to align the transition hole (18.1) with the socket (2.2).

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