Device and method for locking an electrical plug to an electrical outlet
阅读说明：本技术 用于将电插头锁定到电源插座的装置和方法 (Device and method for locking an electrical plug to an electrical outlet ) 是由 ***·阿布伊斯梅尔 于 2018-05-07 设计创作，主要内容包括：本发明包括用于将电插头连接并锁定到电源插座中的方法和装置。这样可以防止插头晃动或意外拔出,因此避免了任何电流干扰或可能引起火灾的电火花发生。在没有插头插入的情况下,本发明阻塞了插座的开口,以防止儿童玩弄它或试图将可能使自己受到电击的任何金属物体插入其中。通过本发明,成年人可以容易地连接和锁定电插头,而儿童则不可能这样做。本发明有各种实施例,使其适用于许多需要连续供电而又不间断的领域,例如家用电器,计算机,工厂设备和医疗设备,以及许多其他示例。(The present invention includes a method and apparatus for connecting and locking an electrical plug into an electrical outlet. This prevents the plug from being shaken or accidentally pulled out, thus avoiding any current interference or the occurrence of electric sparks which could cause fire. Without a plug inserted, the present invention blocks the opening of the receptacle to prevent a child from playing with it or attempting to insert any metal object into it that could potentially shock itself. By means of the invention, an adult can easily connect and lock an electrical plug, which children cannot. The present invention has various embodiments that make it suitable for many applications that require continuous power supply without interruption, such as home appliances, computers, factory equipment and medical equipment, as well as many other examples.)
1. A locking electrical receptacle for receiving and locking an electrical plug and preventing the plug from being pulled out by an extraction force, comprising: a) a socket housing having a plurality of apertures for receiving pins of the plug therein; and b) at least two terminal contacts for connecting power to the pins; and c) a clamping device having a locked and unlocked position, said clamping device being mounted between said terminal contact and said aperture, said clamping device, when said clamping device is set in said locked position with said prong inserted therein, will lock said prong by pressing on at least one of said prongs, wherein said pressing action creates a high clamping force between said prong and said clamping device, said clamping force acting in a direction opposite to said withdrawal force direction, thereby securing said plug in place, and when said clamping device is set in said unlocked position, said clamping device will release said clamping force from said prong, thereby freeing said plug to be withdrawn, whereby said locking socket will connect power to said plug inserted therein, and a user can lock said plug by positioning said clamping device in said locked position, the user can furthermore unlock the plug by positioning the clamping device into the unlocked position.
2. The locking socket of claim 1, wherein the gripping device comprises two jaws.
3. The locking socket of claim 2, wherein the jaw has a friction pad adjacent the pin.
4. The locking socket of claim 2, wherein the jaws have friction pads adjacent the prongs, the pads being made of a resilient material.
5. The locking socket of claim 2, wherein the jaws have friction pads adjacent the prongs, the pads being made of rubber.
6. The locking receptacle of claim 2, wherein the jaws are guided by an elliptical path having a major diameter and a minor diameter such that the jaws are aligned with the minor diameter when the gripping device is in the locked position and the jaws are aligned with the major diameter when the gripping device is in the unlocked position.
7. The locking receptacle of claim 2, wherein the jaws are configured to block the aperture when no electrical plug is inserted therein and the clamping device is in a locked position.
8. The locking receptacle of claim 1, wherein the aperture is circular to receive the plug having a circular prong.
9. The locking receptacle of claim 1, wherein the receptacle housing has a rotatable sleeve that allows the user to control the position of the gripping device such that by rotating the rotatable sleeve clockwise or counterclockwise, the plug will be locked or unlocked, respectively.
10. The locking receptacle of claim 1, further comprising a cable arrangement connected to the terminal contact.
11. The locking receptacle of claim 1, further comprising wall mounting means for mounting the locking receptacle to a wall and connecting the terminal contacts to wires mounted within the wall.
12. A male electrical connector for connecting and releasably anchoring into an electrical outlet, comprising: a) a plurality of conductive pins for contacting the power socket terminals, and at least one of said pins having a root with a high friction surface; b) an anchoring mechanism for mounting the pin, the anchoring mechanism configured to:
enabling radial deflection of at least one of said pins, wherein said pins can be easily inserted into or removed from holes in said electrical power socket as long as they are not deflected, said pins being urged laterally to press against side surfaces of said holes when said anchoring mechanism deflects at least one of said pins, thereby creating a stiction force between said side surfaces and said high friction surfaces of said pins, said friction force acting in a direction opposite to an extraction force tending to remove said electrical connector;
thereby, the electrical connector can be freely removed or inserted into the power socket whenever the pins are aligned with the power socket holes, and the electrical connector can be anchored in the power socket holes when one or more of the pins are deflected and pushed against the side of the power socket holes.
13. The electrical connector of claim 12, wherein the conductive pin is circular.
14. The electrical connector of claim 12, wherein the conductive pin has a roughened surface at its root.
15. The electrical connector of claim 12 wherein said anchoring mechanism further comprises a deflection amplifier means for increasing deflection of said pin as said extraction force increases, thereby increasing said frictional force generated to overcome said extraction force.
16. The electrical connector of claim 12, further comprising a cable arrangement connected to the conductive pin.
17. The electrical connector of claim 12, further comprising a rotatable sleeve for controlling the position of the anchoring mechanism such that when the rotatable sleeve is rotated clockwise or counter-clockwise, the anchoring mechanism is caused to deflect or align the pin, respectively.
18. A device for connecting and locking an electrical plug to an electrical outlet, comprising:
a) a first side having a male electrical connector insertable and releasably anchored into the electrical outlet,
it includes: i) a plurality of conductive pins for contacting the power socket terminals, and at least one of the pins having a root portion with a high friction surface; ii) an anchoring mechanism for mounting said pins, said anchoring mechanism being configured to enable radial deflection of at least one of said pins, wherein said pins are easily inserted into or removed from holes of said power socket as long as no pin is deflected, said pins being pushed laterally to press on side surfaces of said holes when said anchoring mechanism deflects at least one of said pins, thereby creating a static friction force between said side surfaces and said high friction surfaces of said pins, said friction force acting in a direction opposite to an extraction force tending to remove said electrical connector,
b) a second side having an electrical receptacle for receiving and locking the electrical plug and preventing removal thereof by the withdrawal force, comprising: i) a receptacle housing having a plurality of apertures for receiving the pins of the plug therein; and
ii) at least two terminal contacts for connecting power to the plug pins, the terminal contacts being connected to the connector pins; and
iii) a clamping device having a locked and an unlocked position, said clamping device being mounted between said terminal contact and said hole, said clamping device being intended to lock said plug by pressing on at least one of said prongs when said clamping device is set to said locked position in a state in which said prong is inserted therein, wherein said pressing action generates a high clamping force between said prong and said clamping device, said clamping force acting in a direction opposite to said withdrawal force direction, thereby securing said plug in place, and said clamping device being intended to release said clamping force from said prong when said clamping device is set to said unlocked position, thereby allowing said plug to be freely withdrawn;
c) an assembly device combining the first and second sides, the assembly device configured for controlling the clamping device of the locking receptacle and the anchoring mechanism of the electrical connector, wherein the assembly device synchronizes the positions of the clamping device and the anchoring mechanism so that both are in a locked or unlocked position simultaneously.
19. The apparatus of claim 18, wherein the connector pin and socket hole are circular.
20. The device of claim 18, wherein the clamping device comprises two clamping jaws.
21. The apparatus of claim 20, wherein the jaw has a friction pad adjacent the pin.
22. The apparatus of claim 20, wherein the jaw has a friction pad adjacent the pin, the pad being made of an elastomeric material.
23. The apparatus of claim 20, wherein the jaw has a friction pad adjacent the pin, the pad being made of rubber.
24. The device of claim 20, wherein the jaws are guided by an elliptical path having a major diameter and a minor diameter such that the jaws are aligned with the minor diameter when the gripping device is in the locked position and the jaws are aligned with the major diameter when the gripping device is in the unlocked position.
25. The device of claim 20, wherein the jaws are configured to block the aperture when no electrical plug is inserted therein and the clamping device is in a locked position.
26. The device of claim 18, wherein the assembly device further comprises a rotatable sleeve that is axially rotatable such that twisting the rotatable sleeve clockwise and counterclockwise causes the clamping device and anchoring mechanism to lock and unlock, respectively.
27. The device of claim 18, wherein said anchoring mechanism further comprises a deflection amplification means for increasing deflection of said pin as said extraction force increases, thereby increasing said frictional force generated to overcome said extraction force.
28. A method for locking and unlocking an electrical plug in an electrical outlet, comprising the steps of:
a) there is provided a lock device including: i) a locking receptacle in a first side having a clamping mechanism therein and a contact terminal, the receptacle capable of receiving and releasably locking the electrical plug; and
ii) a male electrical connector on a second side having a plurality of deflectable conductive pins, at least one of which has a high friction surface at the root, the connecting pins being mounted in a movable anchoring mechanism capable of radially moving at least one of the pins, the male electrical connector being capable of anchoring into an electrical power socket when the one or more pins are deflected; and
iii) a body part for joining said two sides, said body being connected to a rotatable sleeve which is axially rotatable in clockwise and counterclockwise directions for simultaneously controlling said gripping mechanism and said anchoring mechanism for locking or unlocking, respectively,
b) inserting the locking device into the power socket so as to insert the male connector pin into the hole of the power socket,
c) inserting the electrical plug into the locking receptacle in the second side of the locking device,
d) rotating the rotatable sleeve or the electrical plug clockwise to i) connect power from the power socket to the electrical plug through the connector pin and socket terminals; ii) causing the clamping mechanism to lock the electrical plug into the locking socket; iii) causing the anchoring mechanism of the male connector to deflect at least one of the pins to anchor into the power socket aperture, thereby connecting and locking the electrical plug in the locking socket and connecting and anchoring the male connector in the power socket aperture,
e) rotating the rotatable sleeve or the electrical plug counterclockwise to i) disconnect power to the electrical plug; ii) releasing the clamping mechanism; iii) causing the anchoring mechanism to align the connector pin with the power socket aperture whereby the electrical plug is unlocked and can if pulled out, the locking mechanism is released and can also be pulled out.
29. The method of claim 28, further comprising the steps of: by inserting the locking device into the power socket and rotating the rotatable sleeve clockwise, the power socket aperture is blocked when no plug is inserted, whereby the anchoring mechanism will anchor in the aperture and the clamping mechanism will block the locking socket aperture to prevent insertion of an object or plug.
Technical Field
The present invention relates to power security, and more particularly, to preventing inadvertent removal of an electrical plug.
Background
Electrical plugs are used primarily to provide access to mains power, and may be accidentally pulled from a mains socket if the power cord or plug is accidentally pulled by a person, child, pet or by moving an attached device. In the event that the electrical plug is completely unplugged from the power outlet, an undesirable loss of electrical power may occur. However, the most dangerous situation is that the plug is partially pulled out while maintaining the electrical connection. In this case, the pins of the plug are exposed, loose and poorly connected, which may cause sparks, fires, and if touching the plug, electric shock to surrounding children or pets.
There may also be a serious danger when a power plug is not installed in the power outlet. It is contemplated that a person, particularly a child, may insert a conductive object (e.g., metal) or plug into an electrical outlet. Both situations may lead to electrical shock, particularly if the plug is partially inserted and a portion of the pins are exposed.
Various methods and devices have been proposed to ensure engagement between an electrical plug and an electrical outlet to prevent accidental disengagement. In addition, there are several means for blocking the power socket holes to prevent any object from being inserted therein. Many patents are directed to providing a cover for an electrical outlet to prevent a child from inserting an item therein. For example US7652210, US6108178, US6674003, US2007/0256850, US7056145, US2709198, US2987909, US3467763, US4584856, US4674813, US5061199, US3159446, US4603931, US6479749, US4603931, US6908502, US2002/0118498, US6780031, US3775729, US3491327, US5599196, US6198046, US5791931, US5286213 and US 5791931.
Few patents suggest replacing the plug and outlet by a custom designed plug and outlet that can be locked together to prevent accidental unplugging of the power plug. For example: US6358076, US5344333 and US 3121599.
Other patents use cord securement mechanisms to overcome the problem of accidental removal. For example: US6071142, US6491539, US2013/183855, US4652069, US4702709, US4851612, US5348495, US5575677, US5655924, US6071142, US6095846, US6491539, US6769930, US7014493, US7056145 and US 7722380.
There are also patents that use a hook mechanism to lock the plug of the blade-shaped prongs. These mechanisms include hooks that extend from holes in the blade tips. For example: US2732531, US3891289, US5551884, US5194013, US5893772, US5941724, US6193539, US6454576, US7080889, US7172451, US7361045, US7484986, US2003/0207606, US2010/0144187, US3066276, US3233204, US2771590, US2016755 and US 1957773.
Patents US8152554 and US2005/0101169 propose a concept for locking an electrical plug using a pull-out force (tending to remove the plug) and converting it into a clamping force that prevents the plug from being removed.
Finally, some patents propose modifying the prongs of an electrical plug with a hooking mechanism that can hook into a cavity in the aperture of an electrical outlet. For example: US2005/0124200, US6171129, US2009/0061667 and US 7798838. Although all previous patents propose solutions for protecting power plugs and power outlets, each approach has its own drawbacks that make it less effective in most cases. Covering the power socket only prevents the insertion of objects and does not prevent the accidental removal of the electrical plug. The cover must be removed using a special tool before each use of the power outlet. Therefore, this is an impractical solution for frequently used power outlets.
Other solutions that require replacement of power plugs and power outlets are impractical. This is because it is not convincing to replace each plug and socket.
Additionally, in most cases, it is not desirable to install a securing mechanism to secure the cord in place because these mechanisms are bulky and designed to fit a particular type of electrical outlet. It is a good solution to modify the power socket with a locking device hooked into the pin hole of the plug. However, it is only effective for certain types of plugs having holes in their pins. Therefore, this mechanism is not applicable to all other types of plugs.
Although those patents which convert the withdrawal force into a clamping force propose a more versatile solution, it still has some drawbacks, for example, the clamping force is a reaction force generated after the plug is moved, which means that the withdrawal force must be applied and the power plug must be partially withdrawn before the clamping mechanism is activated. Such movement of the plug can break the electrical connection. Even if the amount of movement is too small to disconnect, a portion of the plug is exposed and remains electrically connected, increasing the risk of electrocution if someone is playing with it.
Modifying a mechanical plug with a mechanism that hooks into the internal cavity of an electrical outlet is not practical for most electrical outlets. This is because not all power outlets have a cavity inside, and even with a cavity inside the outlet, the cavities are typically not of the same depth and size, which makes it very difficult to provide a universal hooking mechanism that can hook in all types of power outlets.
Disclosure of Invention
The present invention is a device and method that can be used to protect an electrical plug from accidental or unintentional removal or partial unplugging. The invention also enables blocking of the power socket, thereby preventing any object from being inserted therein.
The present invention provides a solution for all types of electrical plugs and outlets, in particular the round pin type. Moreover, it is simple, easy to use and does not require any modification of the electrical plug or socket. The invention is general. It is capable of protecting electrical plugs of various shapes and standards, including types (C) and (F) and round-head chargers and adapters of any size. In addition, it fits all shapes and standards of power outlets, including (C), (F) and combination (C-A) types.
The present invention allows an adult to quickly install, lock, unlock, remove and reinstall an electrical plug without any tools or modifications to the power outlet or plug. Although it is easy to install or remove by an adult, it is impossible to remove by a child.
The invention has several uses, for example, it can be used in two ways in the field of child protection. First, if the plug is not installed, the device can be used as an anti-tampering device, as it would block the hole of the power outlet and prevent a child from inserting anything into the outlet that could cause an electric shock. Secondly, if an electrical plug is installed, the device prevents partial or complete unplugging, thereby avoiding the fatal risk of electric shock that may occur when a child places their fingers or objects between the outlet and the loose plug.
There are many potential users that could benefit from the present invention. In the field of computer security, the device will prevent accidental power outages during long continuous processes. At home, it can be used to ensure continuous power supply to household appliances (e.g., cleaners, refrigerators, etc.). More importantly, it can be used to ensure uninterrupted power supply to hospital medical equipment and factory equipment.
Reference numerals
10
12 electrical plug type (C) 90 oval path
14 electrical plug type (F) 92, 94 smooth metal part
16 power outlet type (C-A) 96, 98 high friction part
Inclined surface of 18 power socket type (F) 100, 102 push rod
20 power outlet type (C) 104, 106 foot inclined surface
22
24
26. 28
30. 32
34. 36
38, 40
42, 44
46, 48 fixed
50 assembly of plug metal pins of
52
54, 56
58,60,62,64
66
68
Wall-mounted mounting device for 70-
71
72
74. 76 rotatable ground contact 152a, b, c terminal
78. 80-hole 154a, b, c terminal
82. 84
There are three embodiments of the present invention. Each having its own characteristics which greatly increase the working range of the invention in different fields and applications.
A first embodiment of the invention is a universal adapter for connecting an electrical outlet to an electrical plug. The adapter has a locked and an unlocked position. It also has two sides. The first side includes a male electrical connector that is insertable into and securable within an electrical outlet. The second side contains a locking receptacle capable of receiving and locking an electrical plug therein. In this way, by means of a very simple and straightforward procedure, the user can connect and securely lock the electrical plug to the electrical outlet without any further modification thereof.
A second embodiment of the invention is a lockable electrical plug that can be used as a conventional plug and has the additional feature of being locked into an electrical outlet when required.
A third embodiment of the present invention is a locking receptacle. In this case it is able to receive an electrical plug in a manner similar to a conventional socket, but with the further ability to lock the electrical plug therein. The locking receptacle may take on different configurations, such as a power outlet, a power extension, and a power hub.
In the following description, the drawings are not necessarily to scale, and in some instances, proportions have been exaggerated to allow for a clearer depiction of certain features of the invention.
Figures (1) to (36) illustrate the components and method of use of a first embodiment of the invention as follows: fig. 1 shows a first embodiment (10) between an electrical plug (C) type (12) and (F) type (14), and a wall socket (C) type (20), (F) type (18), and combination (C-a) type (16).
As shown in fig. 2 and 3, the first embodiment includes two side surfaces. The first side is an axially rotatable locking receptacle (112) in which an electrical plug can be received and locked. The second side is a male connector (114) with two special pins (34), (36) that can be inserted and anchored in an electrical outlet. Both sides are assembled to an assembly housing (50).
The components of the first embodiment are exploded in fig. 4 and 5. These components are divided into three main parts: a locking receptacle (12), a male connector (114) and an assembly housing (50).
The male connector (114) includes a base plate (24) and two pushers (26), (28) separated by two springs (30), (32). The two springs are preloaded so that they always urge the pushers (26), (28) to move outwardly. Two feet (38), (40) secure two dedicated pins (34), (36) and connect them to two terminals (42), (44). The fixed ground contacts (46), (48) are fixed to the assembly housing (50).
The lock receptacle (112) includes a socket housing (71) and two jaws (54), (56), each jaw having two friction pads (58), (60) and (62), (64). The locking receptacle further includes a rotatable sleeve (66), a safety button (68), jaw guide fins (72), foot guide fins (70) and two rotatable ground contacts (74), (76).
The locking socket (112) shown in fig. 6 and 7 is the key responsible for securing and locking the electrical plug. It includes a rotatable sleeve (66) and two jaws (54), (56). The rotatable sleeve (66) contains two rotatable contacts (74), (76) that connect the ground wire to the ground clip of the plug. In addition, it includes two holes (78), (80) into which pins are inserted. It also has jaw guide fins (72) and foot guide fins (70). Furthermore, it has a safety button (68). The jaws (54) and (56) include two friction pads (58), (60) and (64), (62), respectively. These pads may be rubber, silicon or any other material with a high coefficient of friction. The jaw guide fin (72) guides the jaws (54), (56) through the slots (82), (84) so that the jaws (54), (56) can slide radially and rotate with the jaw guide fin (72). Each jaw (54), (56) has its smooth tip (86), (88) which is free to slide within an elliptical path (90) of the assembled housing (50).
Fig. 8 and 9 show the male connector responsible for anchoring in the circular hole of the power outlet. The pins (34), (36) are specially manufactured to produce high friction, so each pin has a smooth metal portion (92), (94) and a high friction portion (96), (98), which may be rough, textured or covered by any high friction material. Two special pins (34), (36) are secured to an anchoring mechanism that includes two feet (38), (40), each foot having an inclined smooth surface (104), (106) and a paddle (108), (110). The angled surfaces (104), (106) of the feet are adjacent the angled smooth surfaces (100), (102) of the pusher so they can slide freely over each other. The pushers (26), (28) are subjected to an outward force exerted by two pre-loaded springs (30), (32). The upward force is transmitted to the feet (38), (40) through the angled smooth surfaces (100), (102) of the pusher.
Fig. 10 to 13 show a process of fixing and locking the electric plug (F) type to the power outlet (F) type. Fig. 10 shows the arrangement of the
Fig. 14 and 15 are sectional views providing further illustration of the first embodiment (10) unlocked and connected to the power socket (18) and the electrical plug (14). As shown in fig. 14, the first embodiment is in the unlocked position and the male connector is free to slide in and out of the power socket holes (116), (118). This is because the foot guide fin (70) prevents any movement of the paddle (110), (108) of the foot. Thus, the feet (38), (40) are secured in position against the pushers (26), (28). Thus, the pins (34), (36) are aligned with the power socket holes (116), (118). Therefore, they can be easily inserted or removed without contacting the surfaces of the holes (116), (118).
Fig. 14 shows the plug pins (124), (126) between the two jaws (54), (56) and the four friction pads (58), (60), (62), (64). When the device is in the unlocked position, the jaw guide fins (72) guide the two jaws (54), (56) into alignment with the major diameter of the elliptical path (90), so the four friction pads (58), (60), (62), (64) are uncompressed, so the pins (124), (126) of the plug can move freely in or out.
Fig. 16 and 17 are sectional views of fig. 13, showing the first embodiment in a locked position and how the plug and the power outlet are fixed together. In fig. 16, a side cross-sectional view shows how the male connector (114) is anchored in the power socket holes (116), (118). When the foot guide fin (70) is rotated 90 degrees, the foot paddles (108), (110) will be free, so the feet (38), (40) are only affected by the external forces transmitted by the push rods (28), (26). These forces move the feet (38), (40) and pins (34), (36) outward until the high friction portions (96), (98) of the pins contact the power socket holes (116), (118) at the friction areas (144), (146). Power is transmitted from the power clip (122), (120) to the pins (124), (126) of the power receptacle through the dedicated pins (34), (36) and the terminal contacts (42), (44). Further in fig. 16, the anchoring mechanism amplifies the anchoring force when a withdrawal force is applied to the plug (14). Even if the pull-out force is increased, the increase in the anchoring force will ensure the connection of the plug (14). This amplification is achieved by increasing the friction between the dedicated pins (34), (36) and the holes (116), (118) as follows: the extraction force applied to the plug (14) will be transmitted through the assembly housing (50) to the base plate (24). The base plate (24) will transmit the pulling force to the pushers (26), (28) and then to the feet (38), (40). The contact area between the pushers (26), (28) and the feet (38), (40) is inclined and smooth. As a result, the transmitted force will be in a direction perpendicular to the inclined surfaces (106), (104). These forces transmitted to the feet (26), (28) will increase the friction between the power socket holes (116), (118) and the high friction portions (96), (98) of the pins. The friction force is in the opposite direction to the pulling force applied to the plug (14) and always having a high value, which ensures the connection of the plug to the power socket regardless of the pulling force applied.
Fig. 17 shows the pins (124), (126) clamped under the four friction pads (58), (60), (62), (64). These pads are now compressed as the jaws (54), (56) rotate and align with the smaller diameter of the elliptical path (90). The receptacle pins (124), (126) cannot be removed because of the high clamping force between them and the friction pads (58), (60), (62), (64).
Fig. 18 and 19 show the socket pins 124, 126 between the
Fig. 22 and 23 show how the ground wire is connected between the header ground clips (132), (134) and the receptacle ground clips (128), (130) and the stationary ground contacts (46), (48) by rotatable ground contacts (74), (76).
The first embodiment of the present invention can also fix the plug type (C) together with all the power outlet types, as shown in fig. 24 to 31. All previous descriptions regarding the plug (F) (14) are the same as the plug (C) (12), except that the (C) (12) type has no ground clip.
Fig. 32, 33 and 34 show the simplicity of the invention, which can be installed in a plurality of
Fig. 35 and 36 show the first embodiment used as an anti-tampering device by installing itself in an electrical outlet and rotating its
Fig. 37 to 39 show a second embodiment of the invention, which is a lockable electrical plug. The lockable plug includes a male connector (114), an assembly housing (50), a rotatable sleeve (66), and a rear housing (148). In fig. 38 and 39, the male connector is connected to the
A third embodiment of the invention is a different configuration of the locking receptacle (112) (described in the first embodiment). It has the same components and operating principles as those referred to in the description of the first embodiment and the drawings. With some modifications, the locking receptacle may be used as a power extension or wall outlet.
Fig. (40) to (45) show different configurations of the third embodiment. In fig. 40, (41) and (42), the first configuration includes a locking receptacle (112) connected to a cable (154) to serve as a single port power extension with the additional option of locking the plug. Fig. 42 shows the connection between the locking
In fig. 43 and 44, a wall outlet configuration of a third embodiment is shown. The mounting of the locking socket (112) to the wall (22) by the mounting means (160) provides another application of the third embodiment. In this configuration, the third embodiment operates in a manner similar to a conventional wall outlet. Furthermore, it is capable of locking a plug inserted therein. In fig. 44, the
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