Locking mechanism of high-voltage ring main unit

Abstract

The utility model is suitable for the technical field, and provides a locking mechanism of a high-voltage ring main unit, which comprises a cabinet body, a centering rotating mechanism, a locking mechanism and a locking mechanism, wherein the centering rotating mechanism comprises a driving motor arranged on one side of the cabinet body; the large gear is arranged at the output end of the driving motor; the pinion is arranged at one end of the bull gear and is in meshed connection with the bull gear; according to the locking mechanism of the high-voltage ring main unit, when no person is near the high-voltage ring main unit, under the use of a driving motor, a large gear can be rotated, so that a small gear engaged with one end of the large gear is driven to rotate, a poke rod connected with one end of a rotating disc can be rotated conveniently, the poke rod is connected with a connecting rod in a clamping manner, and the locking effect of the high-voltage ring main unit is improved. And therefore, the position of a locking ball at one end of a locking rod penetrating through the surface of the moving plate is fixed, and the automatic locking effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage ring network cabinets, and in particular relates to a locking mechanism of a high-voltage ring network cabinet. Background Art

[0002] The high-voltage ring network cabinet is designed to improve the reliability of power supply and enable users to obtain power from two aspects. The power supply network is usually connected in a ring. This power supply method is referred to as ring network power supply. At present, high-voltage ring network cabinets are widely used in AC 10KV distribution systems such as industrial and mining enterprises, residential areas, ports and high-rise buildings. Circuit breakers and disconnectors are installed in the high-voltage ring network cabinet. The circuit breaker is operated by a spring-operated mechanism to close and open the circuit breaker. The closing and opening of the disconnector is achieved by operating the operating handle from the disconnector operation hole on the door panel of the high-voltage ring network cabinet into the cabinet body and operating the operating shaft of the disconnector. Generally speaking, the disconnector is not equipped with an arc extinguishing device, but an arc extinguishing device is provided in the circuit breaker. For the safety of power distribution, when the transmission line is shut down and powered on, the disconnector must be pulled and closed in sequence. The specific operation is as follows: when performing a power outage operation, the circuit breaker must be pulled off first, then the line-side disconnector, and then the bus-side disconnector. The power supply operation sequence is opposite to the power outage operation sequence.

[0003] The "A Siemens Ring Main Unit Grounding Switch Locking Device" with the authorization announcement number: CN201820661U and the authorization date: 2011.05.04, includes a mounting plate and an electromagnet. The mounting plate is on the support plate of the incoming line unit operating mechanism, and the electromagnet is fixed on the mounting plate. The device of the utility model can lock the grounding switch operation when the high-voltage incoming line cable is energized, effectively preventing the grounding switch from being mistakenly closed when energized, and preventing high-voltage grounding short circuit accidents caused by misoperation. When the incoming line cable is not energized, the operation lock of the grounding switch is released, which does not affect the normal operation of the grounding switch.

[0004] However, there are still some defects in the above-mentioned existing technical solutions. The existing locking mechanism has a single structure, which is not convenient for automatically locking the high-voltage ring network cabinet, reducing the safety of the high-voltage ring network cabinet. Therefore, we propose a locking mechanism for a high-voltage ring network cabinet to solve the above-mentioned problems. Utility Model Content

[0005] The utility model provides a locking mechanism for a high-voltage ring network cabinet, aiming to solve the problem of automatic locking of the high-voltage ring network cabinet.

[0006] The utility model is implemented as follows: a locking mechanism of a high-voltage ring network cabinet comprises: a cabinet body; a centering rotation mechanism arranged at one end of the cabinet body; wherein the centering rotation mechanism comprises: a driving motor arranged at one side of the cabinet body; a large gear arranged at the output end of the driving motor; and a small gear meshingly connected to one end of the large gear.

[0007] Preferably, the centering rotation mechanism also includes: a limit block provided at one end of the pinion; a limit slot plate provided on the outside of the limit block and cooperating therewith; a support frame provided on the limit slot plate and connected to the lifting motor via a lifting motor; a rotating disk provided at one end of the support frame; and a toggle rod provided at one end of the rotating disk.

[0008] Preferably, it includes: a cabinet body; a connecting rod arranged on one side of the toggle rod; a movable plate arranged at one end of the connecting rod and snap-connected; a positioning block arranged at the lower end of the movable plate; a blocking plate arranged on one side of the positioning block; a rotating shaft arranged at one end of the blocking plate; a locking rod passing through one end of the movable plate; and a locking ball arranged at one end of the locking rod.

[0009] Preferably, the limit slot plates form a telescopic structure with the support frame through a lifting motor, and the inner diameter of the limit slot plates matches the outer diameter of the limit blocks, and four groups of limit slot plates are arranged on the surface of the support frame.

[0010] Preferably, there are four groups of the toggle rods evenly distributed on the rotating disk, and the toggle rods and the connecting rod surfaces form a snap-fit ​​structure.

[0011] Preferably, the block plate forms a rotating structure with the positioning block through a rotating shaft, and the positioning block and the surface of the block plate form a locking structure.

[0012] Preferably, the locking ball forms a telescopic structure with the locking rod.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] By setting a centering rotation mechanism, the function of automatic locking can be added to the high-voltage ring network cabinet. When there is no one near the high-voltage ring network cabinet, the large gear can be rotated by using the driving motor, thereby driving the small gear meshing with one end of the large gear to rotate, so that the toggle rod connected to one end of the rotating disk can be rotated, so that the toggle rod is engaged with the connecting rod, thereby raising the movable plate, and then fixing the position of the lock ball at one end of the lock rod passing through the surface of the movable plate, to achieve the effect of automatic locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a side view structural diagram of the centering and rotating mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the back structure of the centering and rotating mechanism of the utility model;

[0018] Figure 4 The utility model Figure 1 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. cabinet; 2. centering and rotating mechanism; 201. driving motor; 202. large gear; 203. small gear; 204. limit block; 205. limit slot plate; 206. lifting motor; 207. support frame; 208. rotating disk; 209. toggle rod; 3. connecting rod; 4. moving plate; 5. positioning block; 6. clamping plate; 7. rotating shaft; 8. locking rod; 9. locking ball. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein 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.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The utility model embodiment provides a locking mechanism for a high voltage ring main unit, such as Figure 1-4 As shown, it includes: a cabinet 1: a centering rotation mechanism 2 arranged at one end of the cabinet 1; wherein the centering rotation mechanism 2 includes: a driving motor 201 arranged at one side of the cabinet 1; a large gear 202 arranged at the output end of the driving motor 201; and a small gear 203 meshingly connected to one end of the large gear 202.

[0023] It should be noted that due to the single structure of the locking mechanism, there is currently a problem of inconvenience in automatic locking. Therefore, in order to solve the current problem of inconvenience in automatic locking, this solution adds an automatic locking function to the high-voltage ring network cabinet by setting a centering rotation mechanism 2.

[0024] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3As shown, it includes: a cabinet 1: a centering rotation mechanism 2 arranged at one end of the cabinet 1; wherein the centering rotation mechanism 2 includes: a driving motor 201 arranged at one side of the cabinet 1; a large gear 202 arranged at the output end of the driving motor 201; and a small gear 203 meshingly connected to one end of the large gear 202.

[0025] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, the centering rotation mechanism 2 also includes: a limit block 204 arranged at one end of the pinion 203; a limit slot plate 205 arranged on the outside of the limit block 204 to cooperate with it; a support frame 207 arranged on the limit slot plate 205 and connected to the lifting motor 206; a rotating disk 208 arranged at one end of the support frame 207; and a toggle rod 209 arranged at one end of the rotating disk 208.

[0026] In this embodiment, when there is no one near the high-voltage ring network cabinet, the large gear 202 can be rotated by using the driving motor 201, thereby driving the small gear 203 meshingly connected to one end of the large gear 202 to rotate, so as to facilitate the rotation of the toggle rod 209 connected to one end of the rotating disk 208, so that the toggle rod 209 is engaged with the connecting rod 3, thereby raising the movable plate 4, and then fixing the position of the locking ball 9 at one end of the locking rod 8 passing through the surface of the movable plate 4, thereby achieving the effect of automatic locking.

[0027] In a further preferred embodiment of the present invention, Figure 1 and Figure 4 As shown, it includes: a cabinet 1: a connecting rod 3 arranged on one side of the toggle rod 209; a moving plate 4 arranged at one end of the connecting rod 3 and connected in a snap-fitting manner; a positioning block 5 arranged at the lower end of the moving plate 4; a blocking plate 6 arranged on one side of the positioning block 5; a rotating shaft 7 arranged at one end of the blocking plate 6; a locking rod 8 penetrating one end of the moving plate 4; and a locking ball 9 arranged at one end of the locking rod 8.

[0028] In a further preferred embodiment of the present invention, Figure 2 and Figure 3 As shown, the limiting slot plate 205 forms a telescopic structure with the support frame 207 through the lifting motor 206, and the inner diameter of the limiting slot plate 205 matches the outer diameter of the limiting block 204. At the same time, four groups of limiting slot plates 205 are arranged on the surface of the support frame 207.

[0029] In a further preferred embodiment of the present invention, Figure 2 and Figure 3 As shown, there are four groups of toggle rods 209 evenly distributed on the rotating disk 208, and the toggle rods 209 and the surface of the connecting rod 3 form a snap-fit ​​structure.

[0030] In a further preferred embodiment of the present invention, Figure 1As shown, the block plate 6 forms a rotating structure with the positioning block 5 through the rotating shaft 7, and the positioning block 5 and the surface of the block plate 6 form a locking structure.

[0031] In this embodiment, by using the rotating shaft 7, the block plate 6 and the positioning block 5 can be engaged and connected, so as to facilitate the positioning of the movable plate 4 and assist in subsequent locking.

[0032] In a further preferred embodiment of the present invention, Figure 1 As shown, the locking ball 9 forms a telescopic structure with the locking rod 8 through the locking rod 8.

[0033] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0034] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, 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 mutual coupling or communication connection 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 telecommunication or other forms.

[0035] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0036] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model 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 utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A locking mechanism for a high-voltage ring main unit, characterized in that: include: Cabinet(1): A centering rotation mechanism (2) provided at one end of the cabinet (1); Wherein, the centering and rotating mechanism (2) comprises: A driving motor (201) disposed on one side of the cabinet (1); a large gear (202) provided at the output end of the driving motor (201); and A small gear (203) is provided at one end of the large gear (202) and is meshedly connected.

2. A locking mechanism for a high-voltage ring main unit as claimed in claim 1, characterized in that: The centering and rotating mechanism (2) further comprises: A limit block (204) provided at one end of the pinion gear (203); A limiting slot plate (205) provided on the outside of the limiting block (204) and matched therewith; A support frame (207) provided on the limit slot plate (205) and connected via a lifting motor (206); a rotating disk (208) disposed at one end of the support frame (207); and A toggle rod (209) is arranged at one end of the rotating disk (208).

3. A locking mechanism for a high-voltage ring main unit as claimed in claim 2, characterized in that: include: Cabinet(1): A connecting rod (3) disposed on one side of the toggle rod (209); A movable plate (4) which is snap-connected to one end of the connecting rod (3); A positioning block (5) provided at the lower end of the movable plate (4); A clamping plate (6) provided on one side of the positioning block (5); A rotating shaft (7) provided at one end of the clamping plate (6); A locking rod (8) penetrating one end of the movable plate (4); A locking ball (9) is arranged at one end of the locking rod (8).

4. A locking mechanism for a high-voltage ring main unit as claimed in claim 2, characterized in that: The limiting slot plate (205) forms a telescopic structure with the support frame (207) through a lifting motor (206), and the inner diameter of the limiting slot plate (205) matches the outer diameter of the limiting block (204). At the same time, four groups of limiting slot plates (205) are arranged on the surface of the support frame (207).

5. The locking mechanism of a high-voltage ring main unit according to claim 2, characterized in that: The toggle rods (209) are evenly distributed in four groups on the rotating disk (208), and the toggle rods (209) and the surfaces of the connecting rods (3) form a snap-fit ​​structure.

6. A locking mechanism for a high-voltage ring main unit as claimed in claim 3, characterized in that: The clamping plate (6) forms a rotating structure with the positioning block (5) via a rotating shaft (7), and the surfaces of the positioning block (5) and the clamping plate (6) form a clamping structure.

7. A locking mechanism for a high-voltage ring main unit as claimed in claim 6, characterized in that: The locking ball (9) forms a telescopic structure with the locking rod (8) through the locking rod (8).

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