A socket protection door drive mechanism

By installing a base body and a reset torsion spring in the socket protection door drive mechanism, the same-direction movement of the protection door is controlled, solving the problem of easy jamming of traditional socket protection doors and achieving more stable and safer plug insertion and removal.

CN224947023UActive Publication Date: 2026-11-06NINGBO YIXIN PRECISION MACHINERY CO LTD
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Patent Information

Application Number
CN202522557770.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-02
Publication Date
2026-11-06
Estimated Expiration
2035-12-02

AI Technical Summary

Technical Problem

Traditional socket protection door drive mechanisms have poor stability and are prone to jamming after a period of use, affecting the smoothness of plug insertion into the socket.

Method used

The base body is installed on top of the L, N, and E pole sockets, and a reset torsion spring is installed through the mounting bracket. The sliding bolt connects to the protection door. The reset torsion spring is designed to control the movement of the protection door in the same direction to ensure stability when the plug is inserted and removed.

Benefits of technology

The stability and safety of the socket protection door drive mechanism have been improved, the smoothness of plug insertion and removal has been enhanced, the ergonomic design has been improved, and the service life of the product has been extended.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224947023U_ABST
Patent Text Reader

Abstract

This utility model provides a socket protection door driving mechanism. The socket protection door driving mechanism includes: a socket housing; an L-pole sleeve installed at the bottom of the inner wall of the socket housing; an N-pole sleeve and an E-pole sleeve also installed at the bottom of the inner wall of the socket housing; multiple base bodies installed on the top of the L-pole sleeve, N-pole sleeve, and E-pole sleeve; multiple ribs on the top of each base body; a stop rib installed on the top of each base body; and two limit brackets installed on the top of each base body. The socket protection door driving mechanism provided by this utility model uses a single-reset torsion spring to control the opening and self-reset functions of the first and second protection doors in the same direction. While meeting the single-pole anti-insertion requirements, it makes the assembly more ergonomic, the driving simpler, improves product safety, and enhances product stability.
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Description

Technical Field

[0001] This utility model relates to the field of socket protection door technology, and in particular to a socket protection door drive mechanism. Background Technology

[0002] A socket is an electrical device that connects appliances to a power source, providing a safe power supply interface for appliances. It is an indispensable electrical accessory in daily life and industrial settings. It typically consists of a casing, internal conductive terminals, and wiring terminals. The casing is usually made of insulating material to prevent electric shock; the conductive terminals are responsible for conducting current and are matched with the metal contacts of the plug.

[0003] The socket safety door drive mechanism is the core component that controls the opening and closing of the safety door. It is located between the socket hole and the socket sleeve and is mainly composed of a safety door component, a flexible component, and a transmission structure. When there is no plug, the flexible component drives the safety door to block the socket hole to prevent electric shock. When the plug is inserted, the plug pins press against the drive surface, and the safety door is moved and unlocked through rotation or gear meshing.

[0004] Traditional socket safety door drive mechanisms have poor stability. After a period of use, plugs may get stuck when inserted into the socket, affecting the smoothness of plug insertion.

[0005] Therefore, it is necessary to provide a socket protection door drive mechanism to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a socket protection door drive mechanism, which solves the problem of unstable traditional socket protection door drive mechanisms that are prone to jamming after prolonged use, affecting the smoothness of plugging and unplugging.

[0007] To solve the above-mentioned technical problems, the socket protection door drive mechanism provided by this utility model includes: a socket housing;

[0008] The L-pole socket is installed at the bottom of the inner wall of the socket housing. The bottom of the inner wall of the socket housing is also equipped with an N-pole socket and an E-pole socket. Multiple base bodies are installed on the top of the L-pole socket, N-pole socket and E-pole socket. Multiple ribs are provided on the top of each base body. A baffle is installed on the top of the base body. Two limit brackets are installed on the top of the base body. The interior of the two limit brackets is slidably connected to a first protective door and a second protective door through sliding bolts. The top of the socket housing is provided with a socket opening.

[0009] Multiple mounting brackets are mounted on the top of the base body, and a return torsion spring is mounted on the outer surface of each mounting bracket. A top cover is mounted on the top of the base body.

[0010] The top of the cover contacts the top of the inner wall of the socket housing. The upper mechanism of the socket body is the protective door assembly, and the lower half of the socket body serves as the support component for the socket current-carrying assembly. The socket body and the socket current-carrying assembly are arranged between the upper and lower housings. The housing is made of flame-retardant and insulating plastic material, meeting the corresponding electrical performance requirements. The product draws power by inserting the plug into the socket body. During vertical insertion, the plug pin first contacts the protective door. In the first case, when the force on the inclined surface of the protective door is balanced, and the insertion force of the pin is greater than the sum of the guiding friction force of the inclined surface of the protective door and the deformation force on one side of the return torsion spring, the protective door will slide to the right and open, thus completing the action of inserting the pin into the product. The current-carrying component socket below the protective door opens due to the downward force of the pin, coupling with the pin and generating a certain contact pressure, thereby achieving stable power supply. When the plug is pulled out, the protective door resets due to the deformation force of the reset torsion spring. In the second case, if the force on the inclined surface of the protective door is uneven, the protective door will tilt to one side using the bottom arc surface as a fulcrum for left and right movement, thus interfering with the raised ribs on the surface of the socket and preventing sliding, achieving the purpose of single-pole anti-insertion. In the product, a single torsion spring always provides a continuous leftward pushing force to both the two-pole and three-pole protective doors. For either type of protective door to open, the pin on the plug must simultaneously apply force to one of the protective doors. The force is vertically downward, and both protective doors open to the right. In the design, the force of the unilateral deformation of the return torsion spring is always greater than the force of the protective door's rocker-like swing when a single pole is inserted, thus ensuring the unilateral anti-insertion capability is always achievable. In the product, a single return torsion spring continuously provides a leftward push to both protective doors. For either protective door to open, the pins on the plug must simultaneously apply a vertically downward force to one of the protective doors. Both protective doors open to the right. In the design, the force of the unilateral deformation of the return torsion spring is always greater than the force of the protective door's rocker-like swing when a single pole is inserted, thus ensuring the unilateral anti-insertion capability is always achievable. The two pins are of equal length. When the two inclined surfaces of the safety door are subjected to balanced forces by the latch, and the insertion force is greater than the sum of the sliding friction force of the safety door and the deformation force of the torsion spring, the safety door moves horizontally to the right. At the same time, the cantilever of the reset torsion spring opens, and the safety door opens. When the plug is inserted and the latch is pulled out, the safety door shifts to the left due to the rebound force of the cantilever of the reset torsion spring, and the safety door completes its reset. When the latch length is different or it is inserted crookedly, the safety door tilts left and right along the rib at the bottom of the safety door as a fulcrum. If force is applied downward, the tilted safety door is blocked by the rib on the seat body and cannot slide, thus achieving the function of single-pole anti-insertion. The function of the rib is to block.

[0011] Preferably, an external component is installed on one side of the socket housing, and a power switch is installed on the top of the socket housing.

[0012] Preferably, the external component includes a mounting head and an external wire, the mounting head being used to mount one end of the external wire to some parts of the socket housing;

[0013] The other end of the external wiring is equipped with a plug, and the inside of the socket housing is equipped with a circuit board for easy wiring control.

[0014] Preferably, the socket housing includes a bottom housing and a top housing, with the top housing mounted on top of the bottom housing.

[0015] Preferably, the top of the socket housing is provided with a mounting groove, and an indicator light is installed inside the mounting groove;

[0016] The indicator light and the circuit board inside the socket housing are connected.

[0017] Preferably, both sides of the socket housing are fixedly connected to mating shells, and four holes are provided at the bottom of the socket housing;

[0018] The holes at the bottom of the socket housing are for bolts to pass through to fix the top housing, and the mating shells are installed on both sides of the top housing.

[0019] Preferably, each of the docking shells has a through opening at its top, and a sealing cap is installed on the top of the docking shell.

[0020] Compared with related technologies, the socket protection door drive mechanism provided by this utility model has the following beneficial effects:

[0021] This utility model provides a socket protection door drive mechanism. To increase the stability of the socket protection door drive mechanism during long-term use, multiple base bodies are installed on the top of the L-pole, N-pole, and E-pole sockets. Then, a reset torsion spring is installed on the top of the base body via a mounting bracket. Next, two first protection doors and a second protection door are installed on two limit brackets on the top of the base body via sliding bolts, and the two ends of the reset torsion spring are respectively connected to the first and second protection doors. At the same time, the oblique openings on the top of the first and second protection doors are aligned with the socket. This design uses a single reset torsion spring to control the opening and self-resetting functions of the first and second protection doors in the same direction. While meeting the single-pole anti-insertion requirements, it makes the assembly more ergonomic, the drive simpler, improves product safety, and enhances product stability. Attached Figure Description

[0022] Figure 1 A schematic diagram of the first embodiment of the socket protection door drive mechanism provided by this utility model;

[0023] Figure 2 A structural schematic diagram of the top cover is provided for this utility model;

[0024] Figure 3 A schematic diagram of the bottom shell is provided for this utility model;

[0025] Figure 4Provided for this utility model Figure 2 An enlarged view of point A shown;

[0026] Figure 5 Provided for this utility model Figure 2 A magnified view of point B shown.

[0027] The following are the labeling elements in the diagram: 1. Socket housing; 101. Bottom housing; 102. Top housing; 2. Socket; 3. Power switch; 4. Indicator light; 5. External components; 501. Fixing head; 502. External wiring; 6. Mounting slot; 7. Top cover; 8. Mounting bracket; 9. First protection door; 10. Retaining rib; 11. L pole socket; 12. N pole socket; 13. E pole socket; 14. Socket body; 15. Limiting bracket; 16. Sliding bolt; 17. Rib; 18. Second protection door; 19. Reset torsion spring; 20. Sealing cover; 21. Through hole; 22. Connecting shell. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of the first embodiment of the socket protection door drive mechanism provided by this utility model; Figure 2 A structural schematic diagram of the top cover is provided for this utility model; Figure 3 A schematic diagram of the bottom shell is provided for this utility model; Figure 4 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 5 Provided for this utility model Figure 2 The enlarged view at point B is shown. The socket safety door drive mechanism includes: socket housing 1;

[0030] L-pole sleeve 11 is installed at the bottom of the inner wall of the socket housing 1. N-pole sleeve 12 and E-pole sleeve 13 are also installed at the bottom of the inner wall of the socket housing 1. Multiple base bodies 14 are installed on the top of the L-pole sleeve 11, N-pole sleeve 12 and E-pole sleeve 13. Multiple ribs 17 are provided on the top of each base body 14. A baffle 10 is installed on the top of the base body 14. Two limiting brackets 15 are installed on the top of the two limiting brackets 15. The interior of the two limiting brackets 15 is slidably connected to a first protective door 9 and a second protective door 18 through a sliding bolt 16. A socket 2 is opened on the top of the socket housing 1.

[0031] Multiple mounting brackets 8 are mounted on the top of the base body 14. Each mounting bracket 8 has a reset torsion spring 19 mounted on its outer surface. The top of the base body 14 is covered with a top cover 7.

[0032] Please refer to Figure 1 An external component 5 is installed on one side of the socket housing 1, and a power switch 3 is installed on the top of the socket housing 1.

[0033] The power switch 3 can control the socket circuit to be connected, and the external component 5 is the external wiring.

[0034] Please refer to Figure 1 and Figure 3 The external component 5 includes a fixing head 501 and an external wire 502, wherein the fixing head 501 is used to mount one end of the external wire 502 to some of the socket housing 1;

[0035] The other end of the external wiring 502 is equipped with a plug, and the inside of the socket housing 1 is equipped with a circuit board for easy wiring control.

[0036] Please refer to Figure 1 and Figure 3 The socket housing 1 includes a bottom housing 101 and a top housing 102, with the top housing 102 mounted on top of the bottom housing 101;

[0037] The bottom shell 101 has a groove on its top, and the socket 2 is located on the top of the top shell 102.

[0038] Please refer to Figure 1 The socket housing 1 has a mounting groove 6 on its top, and an indicator light 4 is installed inside the mounting groove 6;

[0039] Indicator light 4 is connected to the circuit board inside the socket housing 1, serving as a warning to determine whether the socket is powered on.

[0040] Please refer to Figure 2 and Figure 5 Both sides of the socket housing 1 are fixedly connected to the mating shell 22, and four holes are opened at the bottom of the socket housing 1;

[0041] The bottom of the socket housing 1 has a hole for bolts to pass through to fix the top housing 102, and the mating housing 22 is installed on both sides of the top housing 102.

[0042] Please refer to Figure 2 and Figure 5 Each of the docking shells 22 has a through-hole 21 on its top, and a sealing cap 20 is installed on the top of the docking shell 22.

[0043] The through-hole 21 allows bolts to pass through and fix the socket in the corresponding position. The sealing cover 202 is installed on the top of the mating shell 22 so that the top of the top shell 102 is flush with it.

[0044] The working principle of the socket protection door drive mechanism provided by this utility model is as follows:

[0045] Multiple socket bodies 14 are installed on the top of the L-pole socket 11, N-pole socket 12, and E-pole socket 13. Then, a reset torsion spring 19 is installed on the top of the socket body 14 via a mounting bracket 8. Next, two first protection doors 9 and a second protection door 18 are installed on two limiting brackets 15 on the top of the socket body 14 via sliding bolts 16. The two ends of the reset torsion spring 19 are connected to the first protection door 9 and the second protection door 18 respectively. At the same time, the oblique openings on the top of the first protection door 9 and the second protection door 18 are aligned with the socket 2. When the plug is inserted into the corresponding socket 2, it can contact the oblique opening on the first protection door 9 or the second protection door 18, thereby driving the first protection door 9 or the second protection door 18 to compress the reset torsion spring 19, allowing the plug to be inserted into the socket to complete the power supply. After the plug is removed from the socket, the first protection door 9 and the second protection door 18 are reset by the reset torsion spring 19, which can block the socket and provide protection.

[0046] Compared with related technologies, the socket protection door drive mechanism provided by this utility model has the following beneficial effects:

[0047] To increase the stability of the socket protection door drive mechanism during long-term use, multiple socket bodies 14 are installed on the top of the L-pole socket 11, N-pole socket 12, and E-pole socket 13. Then, a reset torsion spring 19 is installed on the top of the socket body 14 via a mounting bracket 8. Next, two first protection doors 9 and two second protection doors 18 are installed on two limit brackets 15 on the top of the socket body 14 via sliding bolts 16, and the two ends of the reset torsion spring 19 are connected to the first protection door 9 and the second protection door 18 respectively. At the same time, the oblique openings on the top of the first protection door 9 and the second protection door 18 are aligned with the socket 2. This design uses a single reset torsion spring 19 to control the opening and self-resetting functions of the first protection door 9 and the second protection door 18 in the same direction. While meeting the single-pole anti-insertion requirements, the assembly is more ergonomic, the drive is simpler, the product safety is improved, and the product stability is enhanced.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A socket protection door drive mechanism, characterized by, include: Socket housing; The L-pole socket is installed at the bottom of the inner wall of the socket housing. The bottom of the inner wall of the socket housing is also equipped with an N-pole socket and an E-pole socket. Multiple base bodies are installed on the top of the L-pole socket, N-pole socket and E-pole socket. Multiple ribs are provided on the top of each base body. A baffle is installed on the top of the base body. Two limit brackets are installed on the top of the base body. The interior of the two limit brackets is slidably connected to a first protective door and a second protective door through sliding bolts. The top of the socket housing is provided with a socket opening. Multiple mounting brackets are mounted on the top of the base body, and a return torsion spring is mounted on the outer surface of each mounting bracket. A top cover is mounted on the top of the base body.

2. The socket access door drive mechanism of claim 1, wherein, An external component is installed on one side of the socket housing, and a power switch is installed on the top of the socket housing.

3. The socket access door drive mechanism of claim 2, wherein, The external component includes a mounting head and an external wire, the mounting head being used to mount one end of the external wire to some parts of the socket housing.

4. The socket protection door drive mechanism according to claim 1, characterized in that, The socket housing includes a bottom shell and a top shell, with the top shell mounted on top of the bottom shell.

5. The socket protection door drive mechanism according to claim 1, characterized in that, The socket housing has a mounting groove on its top, and an indicator light is installed inside the mounting groove.

6. The socket protection door drive mechanism according to claim 1, characterized in that, Both sides of the socket housing are fixedly connected to mating shells, and four holes are opened at the bottom of the socket housing.

7. The socket protection door drive mechanism according to claim 6, characterized in that, Each of the docking shells has an opening at its top, and a sealing cap is installed on the top of the docking shell.