[0020] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention will be defined more clearly.
[0021] Refer to Figure 1-4 A safe power plug-in device is shown, including a plug body and a seat body. The plug body includes a first plug block 1 and a second plug block 11. The second plug block 11 is arranged on the first plug. In the middle of the right end face of the block 1, a plug 14 is arranged in the middle of the right end face of the second plug block 11, and two plug boards 12 are respectively provided symmetrically at the front and rear ends of the right end face of the second plug block 11. Two locking holes 13 are respectively symmetrically provided on the inner end surface of the plate 12, an annular gasket 10 is provided on the right end surface of the first insert block 1 and on the outer periphery of the second insert block 11. The seat body includes The base 200 is arranged in the wall, the left end of the base 200 is provided with a first slot 2 with an opening facing left, and the right end of the first slot 2 is provided with a second slot 21. A power supply hole 24 is provided in the middle of the right end wall of the second slot 21, and the front and rear ends of the right end wall of the second slot 21 are respectively provided with a slot 22 for mating and connection with the plug board 12. The grooves 22 are provided with a lock sliding cavity 28 extending to the right. The lock sliding cavity 28 is provided with a driving threaded rod 26. The driving threaded rod 26 is fitted with threads that are arranged symmetrically before and after the lock sliding cavity. 2 Two sliding blocks 25 connected in a sliding fit, each of the sliding blocks 25 is fixedly provided with a locking column 23 on the outer end surface of the left part thereof for mating connection with the locking hole 13, and the right end wall of the first slot 2 An annular groove 29 is provided on the outer periphery of the second slot 21, and an annular ejector block 20 that can slide left and right and is opposite to the annular groove 29 is provided in the first slot 2. The middle through hole of the annular ejector block 20 is opposite to the second slot 21 and the diameter of the middle through hole 31 is larger than the groove width of the second slot 21, and the annular groove 29 is provided with An ejector spring 30 fixedly connected to the right end of the annular ejector block 20, the annular ejector block 20 can be ejected to the left through the ejector spring 30, and an indicator is also provided in the first insert block 1 Device.
[0022] Wherein, the drive threaded rod 26 is divided into a front threaded section and a rear threaded section. The threads on the front threaded section and the rear threaded section have opposite directions. The front end of the front threaded section is opposite to that provided in the lock sliding cavity 28. The motor 27 in the front wall is power connected, the rear end of the rear threaded section is rotatably connected with the rear wall of the lock sliding cavity 28, and the front threaded section is connected to the first of the two sliding blocks 25. The sliding block 25 is screw-fitted and connected, and the rear threaded section is screw-fitted and connected with the sliding block 25 at the back of the two sliding blocks 25, so that one motor can simultaneously control the two sliding blocks 25 to face each other or Opposite movement.
[0023] Wherein, the cross-sectional area of the annular gasket 10 is the same as the cross-sectional area of the annular ejector block 20, the diameter of the annular groove 29 is the same as the diameter of the first slot 2, and the first The cross section of the insert block 1 and the first slot 2 is round, the cross section of the second insert block 11 and the second slot 21 is rectangular, and the ring gasket 10 can avoid the first slot. An insert block 1 directly contacts the annular ejector block 20, so as to avoid abrasion on the right end surface of the first insert block 1.
[0024] Wherein, the first insert block 1 and the first slot 2 have the same length, the second insert block 11 and the second slot 21 have the same length, and the insert board 12 and the insert board slot 22 The length is the same, so that the mating connection of various components is stable.
[0025] Wherein, the sum of the width of the two sliding blocks 25 and the width of the two locking posts 23 is equal to the width of the lock sliding cavity 28, so that the two locking posts 23 can be retracted in the lock sliding Cavity 28.
[0026] Wherein, the indicating device includes an indicator light 15 fixedly installed at the lower part of the left end surface of the first plug-in block 1, and the indicator light 15 is electrically connected to the plug 14, so that the indicator light 15 is on when the plug 14 is energized To indicate that the insert has entered the power-on state.
[0027] In the initial position state, the motor 27 is in a stopped working state, the annular ejector block 20 is in the first slot 2 under the elastic force of the ejector spring 30, and the two sliding The blocks 25 are in a state of abutting each other, and the two locking posts 23 are both retracted in the locking sliding cavity 28.
[0028] When the electrical equipment needs to be powered on, align the first insert block 1 with the first slot 2 so that the second insert block 11 is aligned with the second slot 21, and the two The insert plates 12 are aligned with the corresponding insert plate slots 22, and then a rightward thrust is applied to the first insert block 1, so that the two insert plates 12 and the second insert block 11 pass through Through the middle through hole 31 and inserted into the second slot 21, when the right end surface of the first insert block 1 abuts the annular ejector block 20, the first insert block 1 Connected with the first slot 2 in a sliding fit, the second plug 11 is connected with the second slot 21 in a sliding fit, and the two plug boards 12 are in sliding fit with the respective plug slot 22 Connection, continue to push the first insert block 1 to the right, so that the annular ejector block 20 overcomes the elastic force of the ejection spring 30 and slides to the right. When the right end of the first insert block 1 When the right end wall of the first slot 2 abuts, the annular ejector block 20 is completely in the annular groove 29, and the plug 14 is inserted into the power supply hole 24 to be connected and energized. At this time, use The electrical equipment is in the energized state, the two locking holes 13 are opposite to the corresponding locking posts 23, and then the motor 27 is controlled to work, and the motor 27 drives the driving screw rod 26 to rotate, and the driving screw The rotation of the lever 26 causes the two sliding blocks 25 to move in opposite directions and slide outwards, and the two sliding blocks 25 slide outwards to push the corresponding locking posts 23 to slide outwards to be inserted into the respective corresponding ones. In the locking hole 13, the locking column 23 is inserted into the locking hole 13 to control the motor 27 to stop working and release the thrust to the first insert block 1. At this time, the two locking columns 23 are respectively Lock the corresponding plug-in board 12 in the plug-in board slot 22, so that the plug 14 is locked in the power supply hole 24, even if you accidentally kick the cable between the plug and the electrical equipment , It will not cause the plug to detach from the power supply hole, and prevent the power equipment from being damaged by sudden power failure;
[0029] When the electric equipment does not need to be energized, the motor 27 is controlled to work in reverse, so that the two locking posts 23 are retracted into the lock sliding cavity 28, and then due to the elastic force of the ejection spring 30 Under the action, the plug body is pushed out to the left, so that the first plug block 1 is pushed out of the first slot 2, and the plug is disconnected from the mating connection with the power supply hole 24, making the device Return to the initial position to facilitate the next plug insertion and energization.
[0030] The beneficial effects of the present invention are:
[0031] 1. The two locking posts are inserted into their corresponding locking holes to lock the plug in the power supply hole, so that the plug is locked for powering on the electrical equipment, which increases the safety of the connection between the plug and the power supply hole. Stability, even if someone accidentally kicks and hits the cable connected between the plug and the electrical equipment, it will not cause the plug to disconnect from the mating connection with the power supply hole, preventing the electrical equipment from being damaged by sudden power failure, so that the device can supply power Safety and stability, the plug lock is safe and firm, the plug lock only needs one motor control to complete, the plug lock operation is simple and convenient.
[0032] 2. By controlling the motor to work reversely, the two locking posts are retracted into the lock sliding cavity, and then the insert is pushed out to the left due to the elastic force of the ejection spring, so that the first insert is pushed out of the first insert. One slot, and the plug is disconnected from the mating connection with the power supply hole, so that the plug can be easily pulled out through the first plug-in block. There is no need to apply a lot of force to pull out the plug. The plug is easy to pull out, and it is controlled by a motor. The plug can be unlocked, and the plug unlocking operation is simple and convenient.
[0033] 3. The present invention has simple structure, good power supply stability, safe and reliable operation of the whole device, reasonable structure design, even if someone accidentally kicks the cable connected between the plug and the electrical equipment, it will not cause the plug to separate from The matching connection of the power supply hole and the locking and unlocking of the plug are simple and convenient, which is suitable for popularization.
[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the description only illustrate the principles of the present invention. The present invention will have various aspects without departing from the spirit and scope of the present invention. Various changes and improvements, these changes and improvements fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
