Misoperation-preventing automatic locking device for mine substation

Abstract

The utility model is suitable for the technical field of substation protection devices, and provides an anti-misoperation automatic locking device for a mine substation, which comprises a distribution box, a protection door plate and a locking mechanism, the protection door plates are rotationally connected to the distribution box, and the two protection door plates are symmetrically arranged on the two sides of the distribution box. According to the scheme, the locking mechanism is arranged, then the adjusting rod is driven to be linked through rotation of the protective door plate, then the linkage plate is driven to rotate, the locking rod can be in butt joint with the limiting plate through the linkage plate and is clamped in the lock hole, the limiting plate and the locking rod form a locking structure, and then the protective door plate can be automatically locked in the closing process; and when the protective door plate needs to be opened, a shifting rod is pressed downwards, the end, away from the shifting rod, of a limiting plate is lifted upwards, accordingly, a locking rod is separated from a lock hole, unlocking of a linkage plate can be achieved, then the protective door plate can be rotationally opened, operation is easy, and manual operation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer substation protection devices, in particular to an automatic locking device for preventing misoperation of a mine transformer substation. Background Art

[0002] A mining substation generally falls under the category of distribution substations. A distribution substation, also known as a distribution station, refers to a distribution system composed of substation equipment, motors, distribution equipment, electrical equipment, power cables and connectors, electrical protection and control devices, etc. In short, a mining substation is a substation with special characteristics and belongs to the category of distribution substations. Since the mine itself is a highly dangerous working environment, some special measures must be added during the design of the mining substation, and it also needs to have a high degree of reliability and safety. For example, a locking device is generally provided for the distribution box of the substation to lock the box door to avoid misoperation.

[0003] Although there are many kinds of locking devices available, there are still some problems. For example, in the current substation distribution box, a lock buckle for locking is generally provided on the door panel of the box body, and a mechanical lock is connected to the lock buckle to achieve a limit locking effect on the door panel. Although this locking structure can also lock the substation box to prevent misoperation, it is necessary to manually operate the mechanical lock for locking during the locking and unlocking process, which is relatively cumbersome and cannot quickly achieve the locking and unlocking of the box door panel. Utility Model Content

[0004] The utility model provides an automatic locking device for preventing misoperation of a mine substation, aiming to solve the problem that manual operation of a locking structure on a transformer box of a mine substation is required to lock and unlock the box, which is relatively cumbersome.

[0005] The utility model is realized as follows: an automatic locking device for preventing misoperation of a mine substation comprises: a distribution box, a protective door panel and a locking mechanism;

[0006] The protective door panel is rotatably connected to the distribution box, and two protective door panels are provided and symmetrically arranged on both sides of the distribution box, and the locking mechanism is arranged between the distribution box and the protective door panels;

[0007] The locking mechanism includes a supporting plate, a linkage plate, an adjusting rod and a limiting unit. The supporting plate is horizontally fixed on the inner wall of the distribution box. One end of the linkage plate is rotatably connected to the supporting plate. One end of the adjusting rod is rotatably connected to the protective door plate, and the other end is rotatably connected to the bottom of the linkage plate.

[0008] Preferably, the limiting unit includes a fixing seat, a limiting plate, a locking rod and a lock hole. The fixing seat is fixed to the inner wall of the distribution box and is located on one side of the supporting plate. One end of the limiting plate is rotatably connected to the top of the fixing seat. The locking rod is fixed to the end of the linkage plate away from the supporting plate. The lock hole is set through the limiting plate, and the locking rod is clamped in the lock hole.

[0009] Preferably, the locking mechanism further includes a docking rod and a reset spring. Two docking rods are provided, and the two docking rods are rotatably connected to the fixing seat and the limit plate respectively, and the two ends of the reset spring are respectively connected between the two adjacent docking rods.

[0010] Preferably, a connecting plate is fixed on one side of the protective door panel located inside the distribution box, and a driven rod is rotatably connected between the connecting plates of two adjacent protective door panels.

[0011] Preferably, the top end of the locking rod is embedded and rotatably connected to a ball, and the ball is in rolling contact with the limiting plate.

[0012] Preferably, one end of the limiting plate close to the locking rod is an upwardly curved structure.

[0013] Preferably, a shift rod is fixed on one end of the limit plate close to the distribution box, and a rectangular slot is provided through the distribution box. The shift rod passes through the rectangular slot and is partially located outside the distribution box.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0015] The locking mechanism is set up in this scheme, and the rotation of the protective door panel drives the adjustment rod to be linked, and then drives the linkage plate to rotate. The locking rod can be docked with the limit plate through the linkage plate and clamped in the lock hole. The limit plate and the locking rod form a locking structure, so that the protective door panel can be automatically locked during the closing process. When the protective door panel needs to be opened, the lever is pressed downward to lift the end of the limit plate away from the lever upward, so that the locking rod is separated from the lock hole to achieve unlocking of the linkage plate, and then the protective door panel can be rotated to open. The operation is simple, avoids the need for manual operation, saves time and effort, and is practical. The protective door panel is locked through the locking mechanism, thereby forming protection for the internal equipment of the distribution box, effectively preventing misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall external structure of the distribution box of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the locking mechanism of the utility model;

[0018] Figure 3This is a schematic diagram of the connection structure of the limit unit of the utility model;

[0019] Figure 4 This is a schematic diagram of the fixing seat and its connection structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the protective door panel and its connection structure of the utility model;

[0021] In the figure: 1. Distribution box; 2. Protective door panel; 3. Locking mechanism; 31. Support plate; 32. Linkage plate; 33. Adjustment rod; 34. Fixed seat; 35. Limit plate; 36. Locking rod; 37. Lock hole; 38. Docking rod; 39. Return spring; 310. Connecting plate; 311. Driven rod; 312. Ball bearing; 313. Push rod. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0023] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] The present invention provides an automatic locking device for preventing misoperation of a mine substation. Figure 1-5 As shown, it includes: a distribution box 1, a protective door panel 2 and a locking mechanism 3;

[0025] The protective door panel 2 is rotatably connected to the distribution box 1, and two protective door panels 2 are provided and symmetrically arranged on both sides of the distribution box 1. The locking mechanism 3 is arranged between the distribution box 1 and the protective door panels 2;

[0026] The locking mechanism 3 includes a supporting plate 31, a linkage plate 32, an adjusting rod 33, and a limiting unit. The supporting plate 31 is horizontally fixed to the inner wall of the distribution box 1. One end of the linkage plate 32 is rotatably connected to the supporting plate 31. One end of the adjusting rod 33 is rotatably connected to the protective door panel 2, and the other end is rotatably connected to the bottom of the linkage plate 32.

[0027] The limiting unit includes a fixing seat 34, a limiting plate 35, a locking rod 36 and a lock hole 37. The fixing seat 34 is fixed to the inner wall of the distribution box 1 and is located on one side of the supporting plate 31. One end of the limiting plate 35 is rotatably connected to the top of the fixing seat 34. The locking rod 36 is fixed to the end of the linkage plate 32 away from the supporting plate 31. The lock hole 37 is set through the limiting plate 35, and the locking rod 36 is clamped in the lock hole 37.

[0028] It should be noted that, since the existing substation distribution box is generally provided with a lock catch for locking on the door panel of the box body, and a mechanical lock is connected to the lock catch to achieve a limit locking effect on the door panel, although this locking structure can also lock the substation box to prevent misoperation, it is necessary to manually operate the mechanical lock for locking during the locking and unlocking process, which is relatively cumbersome and cannot quickly achieve the locking and unlocking of the box door panel. In order to solve this problem, a locking mechanism 3 is provided in this solution, which drives the adjustment rod 33 to rotate through the rotation of the protective door panel 2, and then drives the linkage plate 32 to rotate, and the locking rod 36 is driven by the linkage plate 32. When the keeper is about to unlock the door, the latch 32 is unlocked and the latch 33 is in place, so that the keeper can unlock the door by pressing the lever 313. When the keeper is about to unlock the door, the latch 32 is unlocked and the latch 33 is in place, so that the keeper can unlock the door by pressing the lever 313. When the keeper is about to unlock the door, the latch 32 is unlocked and the latch 33 is in place, so that the keeper can unlock the door by pressing the lever 313.

[0029] When the cam 33 is in the closed position, the locking lever 36 is engaged with the locking hole 37, and the locking lever 36 is engaged with the locking hole 37. When the cam 33 is in the closed position, the locking lever 36 is engaged with the locking hole 37, and the locking lever 36 is engaged with the locking hole 37. When the cam 33 is in the open position, the locking lever 36 is engaged with the locking hole 37, and the locking lever 36 is engaged with the locking hole 37. When the cam 33 is in the closed position, the locking lever 36 is engaged with the locking hole 37, and the locking lever 36 is engaged with the locking hole 37.

[0030] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the locking mechanism 3 also includes a docking rod 38 and a reset spring 39. Two docking rods 38 are provided, and the two docking rods 38 are rotatably connected to the fixed seat 34 and the limit plate 35 respectively, and the two ends of the reset spring 39 are respectively connected between the two adjacent docking rods 38.

[0031] In this embodiment, the limit plate 35 can be quickly reset by the elastic force of the reset spring 39 and the locking rod 36 can be engaged and locked.

[0032] In a further preferred embodiment of the present invention, Figure 1-5 As shown, a connecting plate 310 is fixed to one side of the protective door panel 2 located inside the distribution box 1 , and a driven rod 311 is rotatably connected between the connecting plates 310 of two adjacent protective door panels 2 .

[0033] In this embodiment, the arrangement of the driven rod 311 enables two adjacent protective door panels 2 to be synchronously linked.

[0034] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the top end of the locking rod 36 is rotatably connected to a ball 312 in an embedded manner, and the ball 312 is in rolling contact with the limiting plate 35 .

[0035] In this embodiment, the frictional resistance between the locking rod 36 and the limiting plate 35 is reduced by the rolling of the ball 312 , so that the locking rod 36 can slide quickly on the bottom of the limiting plate 35 .

[0036] In a further preferred embodiment of the present invention, Figure 1-5 As shown, one end of the limiting plate 35 close to the locking rod 36 is an upwardly curved structure.

[0037] In this embodiment, when the locking rod 36 abuts against the limiting plate 35 due to the arc structure, the limiting plate 35 can be lifted up and slid to the bottom of the limiting plate 35 .

[0038] In a further preferred embodiment of the present invention, Figure 1-5 As shown, a lever 313 is fixed to one end of the limiting plate 35 close to the distribution box 1 , and a rectangular slot is provided through the distribution box 1 . The lever 313 passes through the rectangular slot and is partially located outside the distribution box 1 .

[0039] In this embodiment, the setting of the lever 313 allows the protective door panel 2 to rotate when it needs to be opened by driving the limit plate 35 through the lever 313, thereby separating the locking rod 36 and the lock hole 37, so that the protective door panel 2 is unlocked and rotated.

[0040] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0041] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0042] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. An automatic locking device for preventing misoperation of a mine substation, characterized in that: include: Distribution box (1), protective door panel (2) and locking mechanism (3); The protective door panel (2) is rotatably connected to the distribution box (1), and two protective door panels (2) are provided and symmetrically arranged on both sides of the distribution box (1), and the locking mechanism (3) is arranged between the distribution box (1) and the protective door panels (2); The locking mechanism (3) comprises a supporting plate (31), a linkage plate (32), an adjusting rod (33) and a limiting unit. The supporting plate (31) is horizontally fixed on the inner wall of the distribution box (1). One end of the linkage plate (32) is rotatably connected to the supporting plate (31). One end of the adjusting rod (33) is rotatably connected to the protective door plate (2), and the other end is rotatably connected to the bottom of the linkage plate (32).

2. The automatic locking device for preventing misoperation of a mine substation according to claim 1, characterized in that: The limiting unit comprises a fixing seat (34), a limiting plate (35), a locking rod (36) and a locking hole (37); the fixing seat (34) is fixed to the inner wall of the distribution box (1) and is located on one side of the supporting plate (31); one end of the limiting plate (35) is rotatably connected to the top of the fixing seat (34); the locking rod (36) is fixed to one end of the linkage plate (32) away from the supporting plate (31); the locking hole (37) is provided through the limiting plate (35), and the locking rod (36) is clamped in the locking hole (37).

3. The automatic locking device for preventing misoperation of a mine substation according to claim 1, characterized in that: The locking mechanism (3) further comprises a docking rod (38) and a return spring (39). Two docking rods (38) are provided, and the two docking rods (38) are rotatably connected to the fixing seat (34) and the limiting plate (35) respectively, and the two ends of the return spring (39) are respectively connected between the two adjacent docking rods (38).

4. The automatic locking device for preventing misoperation of a mine substation according to claim 1, characterized in that: A connecting plate (310) is fixed to one side of the protective door plate (2) located inside the distribution box (1), and a driven rod (311) is rotatably connected between the connecting plates (310) of two adjacent protective door plates (2).

5. The automatic locking device for preventing misoperation of a mine substation according to claim 2, characterized in that: The top end of the locking rod (36) is embedded and rotatably connected to a ball (312), and the ball (312) is in rolling contact with the limiting plate (35).

6. The automatic locking device for preventing misoperation of a mine substation according to claim 2, characterized in that: One end of the limiting plate (35) close to the locking rod (36) is an upwardly curved structure.

7. The automatic locking device for preventing misoperation of a mine substation according to claim 2, characterized in that: A shifting rod (313) is fixed to one end of the limiting plate (35) close to the distribution box (1), and a rectangular notch is provided through the distribution box (1). The shifting rod (313) passes through the rectangular notch and is partially located outside the distribution box (1).

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