Plug lock box

Abstract

The present invention relates to the technical field of plug protection devices, and specifically to a plug lock box, comprising a box body, a power socket, a flip cover and a lock core, wherein a control chamber is arranged at the upper part of the box body, one side of the control chamber is opened, the power socket is slidably connected in the control chamber and at a side away from the opening, and the flip cover is rotatably arranged at the opening. The present invention is provided with a power socket, a flip cover, a lock core and a linkage assembly, when locking, a staff member rotates the lock core so that the lock core moves the power socket toward the direction close to the opening through the linkage assembly, and the flip cover flips downward so that the opening is in a closed state, in this process, after the flip cover closes the opening, as the power socket continues to move a short distance toward the direction close to the opening, the air pressure inside the control chamber can be made slightly greater than the external atmospheric pressure, so that the external air and dust in the air are not easy to enter the control chamber, and dust accumulation or moisture is prevented in the socket of the power socket.

Description

Technical Field

[0001] The invention relates to the technical field of plug protection devices, in particular to a plug lock box. Background Art

[0002] Some special electronic instruments and equipment need to be used by designated persons. In order to prevent other people from using the equipment, a special lock box is required to lock the power socket in it. In this way, only the key can be used to open the lock box and connect the plug of the electronic instrument and equipment to the power socket for use.

[0003] Most of the lock boxes in the prior art are flip-top network plug lock boxes, such as the one disclosed in the Chinese utility model patent with authorization announcement number CN206758714U, which controls the opening or closing of the cover through a hinged structure. However, the lock box has the following problems: the interior of the lock box is always connected to the external environment, dust is easily accumulated or damp inside the lock box, and poor contact or short circuit is easily caused when the circuit is connected. Summary of the invention

[0004] Based on this, it is necessary to provide a plug lock box to solve the problem that dust or moisture is easily accumulated inside the existing lock box in view of the problems existing in the current lock box.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A plug lock box comprises:

[0007] The box body has a control chamber at its upper portion, and one side of the control chamber is open;

[0008] A power socket, the power socket being slidably connected in the control chamber and away from a side of the opening;

[0009] A flap, which is rotatably arranged at the opening;

[0010] A lock core, which is arranged at the lower part of the box body;

[0011] The lock core has an unlocked state and a locked state. When the lock core switches from the locked state to the unlocked state, the lock core moves the power socket away from the opening through the linkage assembly, and at the same time causes the flip cover to flip upward, so that the opening is in an open state;

[0012] When the lock core switches from the unlocked state to the locked state, the lock core moves the power socket close to the opening through the linkage assembly, and turns the flip cover downward, so that the opening is in a closed state.

[0013] In one embodiment, the linkage assembly is disposed in the control chamber and connected between the lock cylinder, the flip cover and the power socket;

[0014] The linkage assembly is used to simultaneously convert the rotation of the lock core into the sliding of the power socket along the inner peripheral wall of the control chamber and the rotation of the flip cover around the first axis.

[0015] In one embodiment, the linkage assembly includes a linkage rope, a connecting plate, a torsion spring, a first elastic rod and a second elastic rod. A guide wheel is provided on the top of the control chamber. The linkage rope passes through the top of the guide wheel and rolls with the guide wheel. Both ends of the connecting plate are provided with connecting holes. Both ends of the linkage rope pass through the connecting holes on the corresponding side and are fixedly connected to the lock core.

[0016] The top of the control chamber and one side close to the power socket is hinged to one end of the first elastic rod, the other end of the first elastic rod is rotatably connected to the support column, one end of the second elastic rod is arranged on the inner side of the flip cover, and the other end of the second elastic rod is rotatably connected to the support column;

[0017] The spring body of the torsion spring is sleeved on the outside of the support column, and the two spring legs of the torsion spring are arranged obliquely, and one spring leg of the torsion spring is connected to the power socket, and the other spring leg of the torsion spring is connected to the flip cover;

[0018] The connecting plate is fixedly connected to the spring foot of the torsion spring close to the power socket, so that when the lock core rotates, the lock core drives one end of the linkage rope to move up and the other end to move down, thereby driving the connecting plate to flip, thereby flipping the torsion spring.

[0019] In one of the embodiments, a first abutting sleeve is provided on the inner side of the power socket, and one spring leg of the torsion spring is connected to the power socket by abutting against the first abutting sleeve.

[0020] In one of the embodiments, a second abutting sleeve is provided on the inner side of the flip cover, and the other spring leg of the torsion spring is connected to the flip cover by abutting against the second abutting sleeve.

[0021] In one of the embodiments, a knot is provided on the linkage rope at a position in contact with the connection plate, and the knot is used to drive the connection plate to flip when the two ends of the linkage rope move relative to each other.

[0022] In one of the embodiments, a one-way limiting component is provided at the connection between the flip cover and the opening, and the one-way limiting component limits the upper part of the flip cover from moving outward from the opening position.

[0023] In one embodiment, the one-way restriction assembly includes a stopper and a compression spring. There are two compression springs, which are respectively arranged above and below the opening. The compression springs can be compressed in the vertical direction. The opposite ends of the two compression springs are fixedly connected to the stopper. The upper and lower ends of the flip cover are provided with inclined surfaces, and the inclination of the inclined surface at the upper end of the flip cover is greater than the inclination of the inclined surface at the lower end of the flip cover.

[0024] In one of the embodiments, the plug lock box further comprises a key, which is plugged into the lock core. When the key is inserted into the lock core in the locked state and rotated 180 degrees, the lock core switches from the locked state to the unlocked state.

[0025] In one embodiment, a power cord through hole is formed at one end of the box body away from the opening.

[0026] The beneficial effects of the present invention are:

[0027] The present invention is provided with a power socket, a flip cover, a lock core and a linkage assembly. When locking, a staff member rotates the lock core so that the lock core moves the power socket toward the opening through the linkage assembly, and flips the flip cover downward so that the opening is in a closed state. In this process, after the flip cover closes the opening, as the power socket continues to move a short distance toward the opening, the air pressure inside the control chamber can be made slightly greater than the external atmospheric pressure, so that the external air and dust in the air are not easy to enter the control chamber, thereby enhancing the sealing effect of the control chamber and preventing dust from accumulating or getting damp in the socket of the power socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall schematic diagram of a plug lock box of the present invention;

[0029] Figure 2 It is a side view of a plug lock box of the present invention;

[0030] Figure 3 It is a front view of a plug lock box of the present invention;

[0031] Figure 4 for Figure 3 Middle AA section view;

[0032] Figure 5 It is a schematic diagram of the unlocking state of a lock core in a plug lock box of the present invention;

[0033] Figure 6 This is a schematic diagram of a linkage rope structure in a plug lock box of the present invention;

[0034] Figure 7 The figure is a schematic diagram of the positions of a torsion spring and a support column in a plug lock box of the present invention.

[0035] in:

[0036] 100, box body; 110, control chamber; 120, opening; 130, power cord through hole; 200, power socket; 210, first abutment sleeve; 300, flip cover; 310, second abutment sleeve; 400, lock core; 500, linkage assembly; 510, linkage rope; 511, knot; 520, connecting plate; 521, connecting hole; 530, torsion spring; 540, first elastic rod; 550, second elastic rod; 560, guide wheel; 570, support column; 600, one-way restriction assembly; 610, stop buckle; 620, compression spring; 630, inclined plane; 700, key. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] like Figure 1-Figure 7As shown, a plug lock box includes a box body 100, a power socket 200, a flip cover 300 and a lock core 400. A control chamber 110 is provided at the upper part of the box body 100. One side of the control chamber 110 has an opening 120. The power socket 200 is slidably connected to a side of the control chamber 110 away from the opening 120. The flip cover 300 is rotatably arranged at the opening 120. The lock core 400 is arranged at the lower part of the box body 100. The lock core 400 has an unlocked state and a locked state. When the lock core 400 is in the unlocked state, the lock core 400 is locked. When the lock core 400 switches from the locked state to the unlocked state, the lock core 400 uses the linkage assembly 500 to move the power socket 200 away from the opening 120, and at the same time, the flip cover 300 flips upward, so that the opening 120 is in an open state. When the lock core 400 switches from the unlocked state to the locked state, the lock core 400 uses the linkage assembly 500 to move the power socket 200 close to the opening 120, and flips the flip cover 300 downward, so that the opening 120 is in a closed state.

[0041] When the electronic equipment is not in use, the lock core 400 is in a locked state. At this time, the control chamber 110 is sealed by the power socket 200 and the flip cover 300. Therefore, the socket of the power socket 200 inside the control chamber 110 will not accumulate dust or moisture. Therefore, when the plug of the electronic equipment is inserted into the socket of the power socket 200, there will be no problem of poor circuit contact.

[0042] When the electronic device is to be used, the plug of the electronic device needs to be inserted into the socket of the power socket 200. At this time, the staff rotates the lock cylinder 400 to switch the lock cylinder 400 from the locked state to the unlocked state. At this time, the rotating lock cylinder 400 moves the power socket 200 away from the opening 120 through the linkage assembly 500, and at the same time, the flip cover 300 is flipped upward through the linkage assembly 500, so that the opening 120 is in the open state. At this time, the state of the flip cover 300 is as follows: Figure 5 As shown, the staff can insert the plug of the electronic instrument into the socket of the power socket 200.

[0043] When the electronic instrument is used up, it is necessary to first unplug the plug of the electronic instrument from the socket of the power socket 200. At this time, the staff rotates the lock cylinder 400 to switch the lock cylinder 400 from the unlocked state to the locked state. At this time, the rotating lock cylinder 400 moves the power socket 200 toward the opening 120 through the linkage assembly 500, and flips the flip cover 300 downward to close the opening 120. In this process, after the flip cover 300 closes the opening 120, as the power socket 200 continues to move a short distance toward the opening 120, the air pressure inside the control chamber 110 can be slightly greater than the external atmospheric pressure, so that the external air and dust in the air are not easy to enter the control chamber 110, thereby enhancing the sealing effect of the control chamber 110 and preventing dust or moisture from accumulating in the socket of the power socket 200.

[0044] It should also be noted that a rubber sealing ring should be provided at the sealing position of the opening 120 and the flip cover 300. The rubber sealing ring has two purposes. The first function is to seal. The second function is that when the flip cover 300 contacts the rubber sealing ring, the linkage component 500 continues to apply force to the flip cover 300. At this time, the linkage component 500 can make the flip cover 300 further abut against the rubber sealing ring to compress the rubber sealing ring. At the same time, the linkage component 500 allows the power socket 200 to continue to move toward a position close to the opening 120 to compress the air inside the control chamber 110 so that the air pressure inside the control chamber 110 is slightly greater than the external atmospheric pressure.

[0045] It should be added that the plug lock box also includes a key 700, which is plugged into the lock cylinder 400. When the key 700 is inserted into the lock cylinder 400 in the locked state and rotated 180 degrees, the lock cylinder 400 switches from the locked state to the unlocked state. Similarly, when the key 700 is inserted into the lock cylinder 400 in the unlocked state and rotated 180 degrees in the opposite direction, the lock cylinder 400 switches from the unlocked state to the locked state.

[0046] In a further embodiment, Figure 4 As shown, the linkage assembly 500 is disposed in the control chamber 110 and connected between the lock core 400, the flip cover 300 and the power socket 200. The linkage assembly 500 is used to simultaneously convert the rotation of the lock core 400 into the sliding of the power socket 200 along the inner wall of the control chamber 110 and the rotation of the flip cover 300 around the first axis.

[0047] When the lock core 400 switches from an unlocked state to a locked state, the rotational force of the lock core 400 is transmitted to the linkage assembly 500, and the linkage assembly 500 converts the rotational force of the lock core 400 into a force for the power socket 200 to move along the inner wall of the control chamber 110 toward the opening 120, and a force for the flip cover 300 to rotate around the first axis.

[0048] When the lock core 400 switches from a locked state to an unlocked state, the rotational force of the lock core 400 is transmitted to the linkage assembly 500, and the linkage assembly 500 converts the rotational force of the lock core 400 into a force for the power socket 200 to move away from the opening 120, and a force for the flip cover 300 to rotate in the opposite direction around the first axis.

[0049] It should be supplemented that the first axis is the axis where the rotation axis of the flip cover 300 is located when the flip cover 300 rotates.

[0050] In a further embodiment, Figure 5 As shown, the linkage assembly 500 includes a linkage rope 510, a connecting plate 520, a torsion spring 530, a first elastic rod 540 and a second elastic rod 550. A guide wheel 560 is arranged on the top of the control chamber 110. The linkage rope 510 passes through the top of the guide wheel 560 and rolls with the guide wheel 560. Both ends of the connecting plate 520 are provided with connecting holes 521. Both ends of the linkage rope 510 pass through the connecting holes 521 on the corresponding side and are fixedly connected to the lock cylinder 400. The top of the control chamber 110 and the side close to the power socket 200 are hinged to one end of the first elastic rod 540. The other end of the first elastic rod 540 is rotatably connected to the support column 570. One end of the second elastic rod 550 is arranged on the inner side surface of the flip cover 300, and the other end of the second elastic rod 550 is rotatably connected to the support column 570. The spring body of the torsion spring 530 is sleeved on the outside of the support column 570. The two spring legs of the torsion spring 530 are arranged obliquely, and one spring leg of the torsion spring 530 is connected to the power socket 200, and the other spring leg of the torsion spring 530 is connected to the flip cover 300. The connecting plate 520 is fixedly connected to the spring leg of the torsion spring 530 close to the power socket 200, so that when the lock core 400 rotates, the lock core 400 drives one end of the linkage rope 510 to move up and the other end to move down, thereby driving the connecting plate 520 to flip, thereby causing the torsion spring 530 to flip.

[0051] When the lock is closed, the angles of the two spring legs of the torsion spring 530 are downward. When the lock needs to be unlocked, the key 700 is inserted into the lock cylinder 400 and the lock cylinder 400 is turned. The rotation of the lock cylinder 400 drives one end of the linkage rope 510 to move upward and the other end to move downward. At this time, the movement of the linkage rope 510 causes one end of the connecting plate 520 connected thereto to move upward and the other end to move downward, so that the connecting plate 520 gradually tilts and flips. The tilting and flipping of the connecting plate 520 causes the spring legs of the torsion spring 530 connected thereto to be stressed. The stress on the spring legs of the torsion spring 530 causes the spring body of the torsion spring 530 to rotate with the connecting plate 520. When the spring body of the torsion spring 530 flips more than ninety degrees, it will continue to flip ninety degrees under the action of its own elasticity until the torsion spring 530 flips to Figure 5In the state shown in FIG. 1 , during this process, the two spring legs of the torsion spring 530 respectively exert forces on the power socket 200 and the flip cover 300, so that the power socket 200 moves toward the direction close to the opening 120, and the flip cover 300 rotates upward around its rotation axis, so that the power socket 200 and the flip cover 300 reach Figure 5 In the state shown, the opening 120 is in an open state, and the staff can plug the plug of the electronic instrument into the socket of the power socket 200.

[0052] When the lock is unlocked, the angle between the two spring legs of the torsion spring 530 faces upward. When the lock needs to be locked, the staff inserts the key 700 into the lock cylinder 400 and rotates the lock cylinder 400 in the opposite direction. Similarly, the rotation of the lock cylinder 400 drives the end of the linkage rope 510 that previously moved upward to move downward, and the end that previously moved downward to move upward, so that the connecting plate 520 gradually tilts and flips in the opposite direction. The tilting and flipping of the connecting plate 520 causes the spring legs of the torsion spring 530 connected thereto to be stressed. The stress on the spring legs of the torsion spring 530 causes the spring body of the torsion spring 530 to continue to flip along with the connecting plate 520. When the spring body of the torsion spring 530 flips in the opposite direction more than ninety degrees, it will continue to flip ninety degrees under the action of its own elasticity until the torsion spring 530 flips to Figure 4 In the state shown in FIG. 1 , during this process, the two spring legs of the torsion spring 530 respectively exert forces on the power socket 200 and the flip cover 300, so that the power socket 200 moves away from the opening 120, and the flip cover 300 flips downward around its axis, so that the power socket 200 and the flip cover 300 reach Figure 4 In the state shown, the opening 120 is in a closed state, so that the socket of the power socket 200 located inside the control chamber 110 can be prevented from being damp or dusty.

[0053] It can be understood that the present invention controls the force direction of the torsion spring 530 by the linkage between the torsion spring 530 and the lock core 400 through the rotation of the lock core 400, so that the rotation of the lock core 400 provides power for the opening and closing of the flip cover 300, and when the torsion spring 530 is twisted more than ninety degrees, it will automatically complete the flipping under the action of its own elasticity, thereby greatly reducing the force of opening and closing the flip cover 300, making the opening and closing of the flip cover 300 in the present invention smoother.

[0054] It should be supplemented that the second elastic rod 550 is provided to allow the flip cover 300 to rotate with the axis of the torsion spring 530 as the rotation axis, and when the torsion spring 530 rotates upward or downward, the second elastic rod 550 applies a force in the corresponding direction to the flip cover 300, thereby driving the flip cover 300 to rotate. In addition, the axis of the second elastic rod 550 should pass through the center point of the support column 570, so that when the support column 570 flips following the torsion spring 530, the second elastic rod 550 will only be forced to swing upward or downward, and will not flip synchronously with the support column 570.

[0055] It should also be noted that, in order to ensure that when the support column 570 is flipped, the support column 570 will not cause the first elastic rod 540 to flip, the axis of the connection point between the first elastic rod 540 and the support column 570 must also pass through the center point of the support column 570. The function of the first elastic rod 540 is to continue to support the support column 570.

[0056] It should be added that the first elastic rod 540 and the second elastic rod 550 are elastic rods only because during the flipping of the torsion spring 530 , the first elastic rod 540 and the second elastic rod 550 can adjust their lengths by their own deformation to adapt to the flipping of the torsion spring 530 .

[0057] In a further embodiment, Figure 5 As shown, a first abutting sleeve 210 is provided on the inner side of the power socket 200 , and one spring leg of the torsion spring 530 is connected to the power socket 200 by abutting against the first abutting sleeve 210 .

[0058] The first abutting sleeve 210 is provided to provide a suitable force point for a spring foot connecting the torsion spring 530 and the power socket 200 .

[0059] In a further embodiment, Figure 5 As shown, a second abutting sleeve 310 is provided on the inner side of the flip cover 300 , and the other spring leg of the torsion spring 530 is connected to the flip cover 300 by abutting against the second abutting sleeve 310 .

[0060] Similarly, the second abutting sleeve 310 is provided to provide a suitable force point for the other spring foot connecting the torsion spring 530 and the flip cover 300.

[0061] In a further embodiment, Figure 6 As shown, a knot 511 is provided on the linkage rope 510 at a position in contact with the connection plate 520 , and the knot 511 is used to drive the connection plate 520 to flip when the two ends of the linkage rope 510 move relative to each other.

[0062] The knot 511 is provided so that when one end of the linkage rope 510 moves upward and the other end moves downward, the connection plate 520 can be driven to move synchronously through the knot 511 .

[0063] In a further embodiment, Figure 4 As shown, a one-way limiting assembly 600 is provided at the connection between the flip cover 300 and the opening 120 , and the one-way limiting assembly 600 limits the upper portion of the flip cover 300 from moving outward from the position of the opening 120 .

[0064] The one-way limiting assembly 600 is provided to limit the opening direction of the flip cover 300, and to limit the upper portion of the flip cover 300 from moving outward from the opening 120, so that the flip cover 300 can only be flipped upward to open, but not flipped downward to open, so that the staff can more conveniently hold the plug and insert it into the control chamber 110 to connect the plug to the socket of the power socket 200.

[0065] In a further embodiment, the one-way limiting assembly 600 includes a stopper 610 and a compression spring 620. There are two compression springs 620, which are respectively arranged above and below the opening 120. The compression spring 620 can be compressed in the vertical direction. The opposite ends of the two compression springs 620 are fixedly connected to the stopper 610. Inclined surfaces 630 are provided at the upper and lower ends of the flip cover 300, and the inclination of the inclined surface 630 at the upper end of the flip cover 300 is greater than the inclination of the inclined surface 630 at the lower end of the flip cover 300.

[0066] When unlocking, due to the large inclination of the inclined surface 630 at the upper end of the flip cover 300, the upper end of the flip cover 300 abuts against the stopper 610 and the compression spring 620 is compressed to a certain amount, and the upper end of the flip cover 300 still cannot be moved out of the opening 120. However, after the lower end of the flip cover 300 abuts against the stopper 610 and the compression spring 620 is compressed to a certain amount, the lower end of the flip cover 300 can be moved out of the opening 120, and the lower end of the flip cover 300 is rotated outward, so that the flip cover 300 is flipped upward and opened.

[0067] In a further embodiment, a power line through hole 130 is formed at one end of the box body 100 away from the opening 120 .

[0068] A power cord through hole 130 is provided to leave space for the power cord of the power socket 200 to pass through the box body 100 .

[0069] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A plug lock box, characterized in that: include: The box body has a control chamber at its upper portion, and one side of the control chamber is open; A power socket, the power socket being slidably connected in the control chamber and away from a side of the opening; A flap, which is rotatably arranged at the opening; A lock core, which is arranged at the lower part of the box body; The lock core has an unlocked state and a locked state. When the lock core switches from the locked state to the unlocked state, the lock core moves the power socket away from the opening through the linkage assembly, and at the same time causes the flip cover to flip upward, so that the opening is in an open state; When the lock core switches from the unlocked state to the locked state, the lock core moves the power socket close to the opening through the linkage assembly, and makes the flip cover flip downward, so that the opening is in a closed state; the linkage assembly is arranged in the control chamber and connected between the lock core, the flip cover and the power socket; The linkage assembly is used to simultaneously convert the rotation of the lock core into the sliding of the power socket along the inner peripheral wall of the control chamber and the rotation of the flip cover around the first axis; the linkage assembly includes a linkage rope, a connecting plate, a torsion spring, a first elastic rod and a second elastic rod, a guide wheel is arranged on the top of the control chamber, the linkage rope passes through the top of the guide wheel and rolls with the guide wheel, both ends of the connecting plate are provided with connecting holes, and both ends of the linkage rope pass through the connecting holes on the corresponding side and are fixedly connected to the lock core; The top of the control chamber and one side close to the power socket is hinged to one end of the first elastic rod, the other end of the first elastic rod is rotatably connected to the support column, one end of the second elastic rod is arranged on the inner side of the flip cover, and the other end of the second elastic rod is rotatably connected to the support column; The spring body of the torsion spring is sleeved on the outside of the support column, and the two spring legs of the torsion spring are arranged obliquely, and one spring leg of the torsion spring is connected to the power socket, and the other spring leg of the torsion spring is connected to the flip cover; The connecting plate is fixedly connected to the spring foot of the torsion spring close to the power socket, so that when the lock core rotates, the lock core drives one end of the linkage rope to move up and the other end to move down, thereby driving the connecting plate to flip, thereby causing the torsion spring to flip; a first abutting sleeve is provided on the inner side surface of the power socket, and one spring foot of the torsion spring is connected to the power socket by abutting with the first abutting sleeve; a second abutting sleeve is provided on the inner side surface of the flip cover, and the other spring foot of the torsion spring is connected to the flip cover by abutting with the second abutting sleeve; a knot is provided on the linkage rope at a position in contact with the connecting plate, and the knot is used to drive the connecting plate to flip when the two ends of the linkage rope move relative to each other.

2. A plug lock box according to claim 1, characterized in that: A one-way limiting component is provided at the connection between the flip cover and the opening, and the one-way limiting component limits the upper part of the flip cover from moving outward from the opening position.

3. A plug lock box according to claim 2, characterized in that: The one-way limiting component includes a stopper and a compression spring. There are two compression springs, which are respectively arranged above and below the opening. The compression springs can be compressed in the vertical direction. The opposite ends of the two compression springs are fixedly connected to the stopper. The upper and lower ends of the flip cover are provided with inclined surfaces, and the inclination of the inclined surface at the upper end of the flip cover is greater than the inclination of the inclined surface at the lower end of the flip cover.

4. The plug lock box according to claim 1, characterized in that: The plug lock box also includes a key, which is plugged into the lock core. When the key is inserted into the lock core in the locked state and rotated 180 degrees, the lock core switches from the locked state to the unlocked state.

5. The plug lock box according to claim 1, characterized in that: A power line through hole is formed at one end of the box body away from the opening.

Images