Automatic locking device of power control box

Abstract

The utility model discloses an automatic locking device of a power control box, which comprises a box body, the outer wall of one side of the front surface of the box body is connected with a sliding door through a hinge, the outer wall of one side of the front surface of the sliding door is fixedly provided with a handle through a bolt, and one side, close to the back surface of the handle, of the sliding door is provided with a self-locking mechanism. An unlocking assembly is arranged on the outer wall of the front face, close to the self-locking mechanism, of the sliding door, the sliding door comprises a storage door and a push-out door, a storage groove is formed in the back face of the storage door, the push-out door is slidably connected to the interior of the storage groove in the back face of the storage door, and the self-locking mechanism comprises an electric push rod, a rack, a main gear, a secondary gear, a clamping plate, a clamping hole, a clamping column and an L-shaped plate. The electric push rod is fixed to one side of the back face of the push-out door through a supporting plate. According to the utility model, the automatic self-locking function is realized, and the whole structure is arranged on the back surface of the push-out door, so that the problem that the lock is picked when the traditional lock body structure is arranged outside the door is solved, and the safety of the whole power control box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power control boxes, in particular to an automatic locking device for a power control box. Background Art

[0002] The automatic locking of a power control box is a safety control device that can automatically close and lock the control box in a power system to prevent unauthorized personnel from operating on the power system. The automatic locking system of the power control box can effectively avoid accidents and damages caused by misoperation or unauthorized operation in the power system. It can improve the safety and reliability of the power system, and protect the safety of equipment and personnel. The automatic locking system of the power control box can also improve the operation efficiency of the power system, reduce the downtime and maintenance costs.

[0003] After retrieval, a patent with the Chinese patent application number 2023208781600 discloses a power control box with a Bluetooth lock, including a box body. One side of the box body is rotatably connected with a cabinet door. A connecting groove is formed by chiseling on the side of the cabinet door away from the rotating shaft. A locking rod is inserted into the connecting groove. A locking bar is inserted into the connecting groove. A physical lock connecting piece is arranged at one end of the locking rod away from the cabinet door. A jack is formed by chiseling at the position of the locking rod opposite to the locking bar. The locking bar is inserted into the jack. The utility model has the following advantages: The control box is provided with multiple opening methods including a physical lock and Bluetooth unlocking. When circuit maintenance is required, if only a small number of box bodies need to be opened for maintenance. The following deficiencies exist in a power control box with a Bluetooth lock in the above patent:

[0004] Although the overall device realizes Bluetooth automatic control of the switch lock, the lock body structure is exposed outside the cabinet door. This setting method has a poor anti-theft effect, and the lock body structure is easily damaged by lawbreakers, thereby causing losses to the internal components of the power control box. Therefore, there is an urgent need for a power control box with a Bluetooth lock. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an automatic locking device for a power control box.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An automatic locking device for a power control box, including a box body. One side outer wall of the front of the box body is connected with a push-pull door through a hinge. A handle is fixed on the front side outer wall of the push-pull door through bolts. A self-locking mechanism is arranged on the back side of the push-pull door close to the handle. An unlocking component is arranged on the front outer wall of the push-pull door close to the self-locking mechanism.

[0008] As a further solution of the utility model: the sliding door comprises a storage door and a push-out door, and a storage groove is formed on the back surface of the storage door, and the push-out door is slidably connected to the storage groove on the back surface of the storage door.

[0009] As a further solution of the utility model: the self-locking mechanism comprises an electric push rod, a rack, a main gear, a secondary gear, a clamping plate, a clamping hole, a clamping column and an L-shaped plate, and the electric push rod is fixed to one side of the back surface of the push-out door through a support plate, and one end of the rack is connected to the extended end of the electric push rod through a torsion spring shaft member.

[0010] As a further solution of the utility model: one end of the clamping plate is connected to the outer wall of the back surface of the push-out door through a rotating shaft, the secondary gear is threadedly connected to the circumference of the rotating shaft, and the main gear meshes with the secondary gear below.

[0011] As a further solution of the utility model: a sliding hole is formed in the outer wall of the push-out door close to the main gear, and the inner shaft of the main gear slides and rotates in the sliding hole, a displacement sensor is embedded on one side of the circumference of the inner shaft of the main gear, and the rack, the main gear and the secondary gear mesh with each other.

[0012] As a further solution of the utility model: the clamping hole is formed in the lower side of one side of the clamping plate, and the end surface of the clamping plate close to the clamping hole is of an arc-shaped structure, the L-shaped plate is welded to the outer wall of the back surface of the push-out door close to the lower side of the clamping plate, the clamping column is fixed to the inner wall of the box body close to one side of the clamping plate through a bolt, and the clamping column is adapted to the clamping hole.

[0013] As a further solution of the utility model: the unlocking assembly comprises a lifting block, a connecting shaft and a cross hole, a rotating hole is formed in the back surface of the lifting block, the end of the inner shaft of the main gear is limited to rotate in the rotating hole, the lifting block is slidably connected to the sliding hole, a rotating hole is formed in the outer wall of the front surface of the push-out door, the connecting shaft is threadedly connected to the end of the inner shaft of the secondary gear, and the cross hole is formed in the end surface of the connecting shaft.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] For the automatic locking device of the power control box, when the electric push rod is started, the contraction of its extension rod drives the horizontal displacement of the rack, so that the main gear rotates, the rotating main gear drives the secondary gear to rotate a certain angle, and drives the clamping plate to swing a certain angle. At this time, the push-out door is horizontally pushed out from the storage groove of the storage door. When the push-out door fits against the side of the box body, the electric push rod drives the extension rod to extend, and the clamping plate changes from the tilted state to the horizontal state, and the clamping hole at the bottom of the clamping plate just engages with the clamping column, realizing the function of automatic self-locking. And the overall structure is arranged on the back surface of the push-out door, solving the problem that the traditional lock body structure is outside the door and is pried open, and improving the safety of the overall power control box.

[0016] The automatic locking device of the power control box drives the main gear downward by pressing the lifting block downward, disengaging it from the secondary gear. At the same time, the main gear squeezes the rack downward to rotate a certain angle around the extension end of the electric push rod. Immediately afterwards, insert a screwdriver into the cross hole of the connecting shaft and rotate it. At this time, the clamping plate is lifted, and the clamping hole at its bottom is disengaged from the clamping column, realizing the physical unlocking function and effectively opening the power control box in the case of power failure.

[0017] The automatic locking device of the power control box, through the setting of the displacement sensor, effectively realizes that when someone presses the lifting block to carry out physical unlocking theft, the displacement sensor can transmit the information of the displacement of the main gear to the controller through the signal line, and the controller controls the buzzer to sound an alarm.

[0018] The parts not involved in this device are the same as the prior art or can be implemented by the prior art. The structure of the present utility model is simple and the operation is convenient. Description of the Drawings

[0019] Figure 1 It is the front view structural schematic diagram of an automatic locking device of a power control box proposed by the present utility model;

[0020] Figure 2 It is the front view structural schematic diagram of the sliding door in an automatic locking device of a power control box proposed by the present utility model;

[0021] Figure 3 It is the rear view structural schematic diagram of the sliding door in an automatic locking device of a power control box proposed by the present utility model;

[0022] Figure 4 It is the exploded structural schematic diagram of the self-locking mechanism in an automatic locking device of a power control box proposed by the present utility model.

[0023] In the figure: 1, box body; 2, sliding door; 3, hinge; 4, handle; 201, storage door; 202, push-out door; 2021, lifting block; 2022, sliding hole; 2023, connecting shaft; 2024, cross hole; 203, storage groove; 204, electric push rod; 205, rack; 206, main gear; 207, secondary gear; 208, clamping plate; 209, clamping hole; 210, clamping column; 211, L-shaped plate; 212, displacement sensor. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0026] An automatic locking device for a power control box, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, includes a box body 1. One outer wall on the front side of the box body 1 is connected with a sliding door 2 through a hinge 3. One outer wall on the front side of the sliding door 2 is fixed with a handle 4 through bolts. A self-locking mechanism is arranged on the back side of the sliding door 2 near the handle 4, and an unlocking assembly is arranged on the front outer wall of the sliding door 2 near the self-locking mechanism.

[0027] The sliding door 2 includes a storage door 201 and a push-out door 202. A storage groove 203 is formed on the back surface of the storage door 201, and the push-out door 202 is slidably connected in the storage groove 203 on the back surface of the storage door 201.

[0028] To solve the problem that the traditional lock body structure is pried open in the front for theft, as Figure 2 , Figure 3 and Figure 4 shown, the self-locking mechanism includes an electric push rod 204, a rack 205, a main gear 206, a secondary gear 207, a clamping plate 208, a clamping hole 209, a clamping column 210, and an L-shaped plate 211. The electric push rod 204 is fixed on the back side of the push-out door 202 through a support plate. One end of the rack 205 is connected to the extended end of the electric push rod 204 through a torsion spring shaft part. One end of the clamping plate 208 is connected to the back outer wall of the push-out door 202 through a rotating shaft. The secondary gear 207 is threadedly connected to the circumference of the rotating shaft, and the main gear 206 meshes with the secondary gear 207 below.

[0029] A sliding hole 2022 is formed on the outer wall of the push-out door 202 near the main gear 206. The inner shaft of the main gear 206 slides and rotates in the sliding hole 2022. A displacement sensor 212 is embedded on one side of the circumference of the inner shaft of the main gear 206. The rack 205, the main gear 206, and the secondary gear 207 mesh with each other. The model of the displacement sensor 212 is HBM C10, and the model of the electric push rod 204 is Linak LA12.

[0030] The card hole 209 is opened below one side of the card board 208, and one end face of the card board 208 close to the card hole 209 is of an arc structure. The L-shaped plate 211 is welded to the outer wall of the back of the push-out door 202 below and close to the card board 208. The card post 210 is fixed to the inner wall of the box body 1 on the side close to the card board 208 through bolts, and the card post 210 is adapted to the card hole 209.

[0031] During operation, the electric push rod 204 is started, so that its extension rod contracts to drive the rack 205 to horizontally displace, causing the main gear 206 to rotate. The rotating main gear 206 drives the secondary gear 207 to rotate a certain angle, driving the card board 208 to swing a certain angle. At this time, the push-out door 202 is horizontally pushed out from the storage slot 203 of the storage door 201. When the push-out door 202 fits against the side of the box body 1, the electric push rod 204 drives the extension rod to extend, and the card board 208 changes from the tilted state to the horizontal state, and the card hole 209 at the bottom of the card board 208 just engages with the card post 210, realizing the function of automatic self-locking. And the overall structure is arranged on the back of the push-out door 202, solving the problem that the traditional lock body structure is outside the door and is pried open, and improving the safety of the overall power control box.

[0032] To realize the physical unlocking function, as Figure 2 and Figure 4 shown, the unlocking assembly includes a lifting block 2021, a connecting shaft 2023 and a cross hole 2024. A rotating hole is opened on the back of the lifting block 2021, and the inner shaft end of the main gear 206 is rotationally limited in the rotating hole. The lifting block 2021 is slidably connected in the sliding hole 2022. A rotating hole is opened on the front outer wall of the push-out door 202. The connecting shaft 2023 is threadedly connected to the inner shaft end of the secondary gear 207, and the cross hole 2024 is opened on the end face of the connecting shaft 2023.

[0033] By pressing down the lifting block 2021 to drive the main gear 206 downward, disengaging the meshing relationship with the secondary gear 207. At the same time, the main gear 206 presses down the rack 205 to rotate a certain angle around the extension end of the electric push rod 204. Immediately afterwards, insert a screwdriver into the cross hole 2024 of the connecting shaft 2023 and rotate it. At this time, the card board 208 is lifted, and the card hole 209 at its bottom is disengaged from the card post 210, realizing the physical unlocking function, effectively realizing opening the power control box in the case of power failure. And through the setting of the displacement sensor 212, when someone presses the lifting block 2021 to perform physical unlocking theft, the displacement sensor 212 can transmit the information of the displacement of the main gear 206 to the controller through the signal line, and the controller controls the buzzer to sound an alarm.

[0034] Working principle: When working, the electric push rod 204 is started, so that its extension rod contracts and drives the rack 205 to move horizontally, so that the main gear 206 rotates, and the rotating main gear 206 drives the secondary gear 207 to rotate a certain angle, and drives the clamping plate 208 to swing a certain angle. At this time, the push-out door 202 is pushed out horizontally from the storage slot 203 of the storage door 201. When the push-out door 202 fits the side of the box body 1, the electric push rod 204 drives the extension rod to extend, and the clamping plate 208 changes from a tilted state to a horizontal state, and the clamping hole 209 at the bottom of the clamping plate 208 is just engaged with the clamping column 210, realizing the automatic self-locking function.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic locking device for a power control box, comprising a box body (1), characterized in that: The outer wall on the front side of the box body (1) is connected to a sliding door (2) via a hinge (3); a handle (4) is fixed to the outer wall on the front side of the sliding door (2) via bolts; a self-locking mechanism is provided on the back side of the sliding door (2) close to the handle (4); and an unlocking assembly is provided on the outer wall on the front side of the sliding door (2) close to the self-locking mechanism; The sliding door (2) comprises a storage door (201) and a push-out door (202), and a storage groove (203) is provided on the back of the storage door (201), and the push-out door (202) is slidably connected to the storage groove (203) on the back of the storage door (201); The self-locking mechanism comprises an electric push rod (204), a rack (205), a main gear (206), a secondary gear (207), a clamping plate (208), a clamping hole (209), a clamping column (210) and an L-shaped plate (211), wherein the electric push rod (204) is fixed to the back side of the push-out door (202) through a support plate, and one end of the rack (205) is connected to the extended end of the electric push rod (204) through a torsion spring shaft. The unlocking assembly comprises a lifting block (2021), a connecting shaft (2023) and a cross hole (2024); a rotating hole is opened on the back of the lifting block (2021); the inner shaft end of the main gear (206) is limitedly rotated in the rotating hole; the lifting block (2021) is slidably connected in the sliding hole (2022); a rotating hole is opened on the front outer wall of the push-out door (202); the connecting shaft (2023) is connected to the inner shaft end of the secondary gear (207) by means of a thread, and the cross hole (2024) is opened on the end face of the connecting shaft (2023).

2. The automatic locking device of the power control box according to claim 1, characterized in that: One end of the clamping plate (208) is connected to the back outer wall of the ejection door (202) via a rotating shaft, the secondary gear (207) is connected to the circumference of the rotating shaft via a thread, and the main gear (206) is meshed below the secondary gear (207).

3. The automatic locking device of the power control box according to claim 1, characterized in that: A sliding hole (2022) is formed on an outer wall of one side of the ejection door (202) close to the main gear (206), and the inner shaft of the main gear (206) slides and rotates in the sliding hole (2022). A displacement sensor (212) is embedded on one side of the inner shaft of the main gear (206), and the rack (205), the main gear (206) and the secondary gear (207) are meshed with each other.

4. The automatic locking device of the power control box according to claim 1, characterized in that: The clamping hole (209) is opened at the lower side of the clamping plate (208), and one end surface of the clamping plate (208) close to the clamping hole (209) is an arc-shaped structure. The L-shaped plate (211) is welded to the outer wall of the back side of the ejection door (202) close to the lower side of the clamping plate (208). The clamping column (210) is fixed to the inner wall of the box body (1) close to the clamping plate (208) by bolts, and the clamping column (210) is matched with the clamping hole (209).

Images