Dual power supply switching device and system

Abstract

The utility model discloses a dual power supply switching device and system. The device comprises a housing; the switching mechanism comprises a first circuit breaker and a second circuit breaker, the first circuit breaker and the second circuit breaker are horizontally arranged on the shell, the first circuit breaker is used for switching on and switching off a first power supply, and the second circuit breaker is used for switching on and switching off a second power supply; the switching mechanism comprises a first fixing piece, a second fixing piece, a linkage rope, a first communicating pipe and a second communicating pipe, the first fixing piece is used for closing and opening the first circuit breaker, the second fixing piece is used for closing and opening the second circuit breaker, the first end of the linkage rope is connected with the first fixing piece, and the second end of the linkage rope is connected with the second fixing piece. The first fixing piece and the second fixing piece are connected through the linkage rope, the first circuit breaker and the second circuit breaker cannot be switched on at the same time, double power supplies can be switched rapidly, potential safety hazards are reduced, and the device can be widely applied to the technical field of power grid equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of power grid equipment, and in particular to a dual power supply switching device and system. Background Art

[0002] In the current distribution network industry, it is necessary to quickly switch dual power sources to carry out non-stop maintenance of the power grid, as well as switch the backup power supply to supply power.

[0003] In the existing distribution network, most of the dual power switching devices send opening or closing instructions to the operating mechanism through a delayed drive circuit, and realize the power switching of the switch by controlling the forward and reverse rotation of the motor. The switching speed is slow, and there is a risk of simultaneous connection of dual power supplies when switching the power supply, causing safety hazards. Utility Model Content

[0004] In view of this, the purpose of the embodiments of the utility model is to provide a dual power switching device and system, which can quickly switch dual power supplies and avoid simultaneous access to dual power supplies, thereby reducing safety hazards.

[0005] In a first aspect, an embodiment of the utility model provides a dual power switching device, including a housing;

[0006] A switch mechanism, the switch mechanism comprising a first circuit breaker and a second circuit breaker, the first circuit breaker and the second circuit breaker are horizontally arranged on the housing, the first circuit breaker is used to switch a first power source, and the second circuit breaker is used to switch a second power source;

[0007] The switching mechanism includes a first fixing member, a second fixing member, a linkage rope, a first connecting pipe and a second connecting pipe, the first fixing member is used to close and open the first circuit breaker, the second fixing member is used to close and open the second circuit breaker, the first connecting pipe and the second connecting pipe are horizontally arranged on the inner wall of the shell, the first end of the linkage rope is connected to the first fixing member, and the second end of the linkage rope passes through the first connecting pipe and the second connecting pipe respectively and is connected to the second fixing member, and the linkage rope is used to link the first fixing member and the second fixing member so that the first circuit breaker and the second circuit breaker are mechanically interlocked.

[0008] Optionally, the first connecting pipe and the second connecting pipe are both made of metal material.

[0009] Optionally, the first connecting pipe is arranged below the first circuit breaker, the second connecting pipe is arranged below the second circuit breaker, and the first connecting pipe and the second connecting pipe are arranged opposite to each other.

[0010] Optionally, the first connecting tube and the second connecting tube have the same structure, the first connecting tube includes a first bent pipe and a first straight pipe, the first end of the first bent pipe is fixedly connected to the second end of the first straight pipe, the second connecting tube includes a second bent pipe and a second straight pipe, the first end of the second bent pipe is fixedly connected to the second end of the second straight pipe.

[0011] Optionally, the bending point of the first bent pipe and the bending point of the second bent pipe both have R chamfers.

[0012] Optionally, the first fixing member and the second fixing member have the same structure, the first fixing member includes a first hollow stud, a first screw and a first gasket, the second end of the first screw passes through the first gasket and the first hollow stud respectively, the first gasket is provided with a first connecting opening, the first connecting opening is connected to the first end of the linkage rope, the second fixing member includes a second hollow stud, a second screw and a second gasket, the second end of the second screw passes through the second gasket and the second hollow stud respectively, the second gasket is provided with a second connecting opening, the second connecting opening is connected to the second end of the linkage rope.

[0013] Optionally, a cross groove is provided at the first end of the first screw and the first end of the second screw.

[0014] Optionally, a first handle separation and combination cap hole is provided on the first circuit breaker, and a second handle separation and combination cap hole is provided on the second circuit breaker, the first hollow stud and the first screw are fixed in the first handle separation and combination cap hole, and the second hollow stud and the second screw are fixed in the second handle separation and combination cap hole.

[0015] In a second aspect, an embodiment of the utility model provides a dual power switching system, including the dual power switching device mentioned above.

[0016] The implementation of the utility model embodiment includes the following beneficial effects: The utility model embodiment provides a dual power switching device, including: a shell; a switching mechanism, the switching mechanism including a first circuit breaker and a second circuit breaker, the first circuit breaker and the second circuit breaker are horizontally arranged on the shell, the first circuit breaker is used to switch the first power supply, and the second circuit breaker is used to switch the second power supply; the switching mechanism includes a first fixing member, a second fixing member, a linkage rope, a first connecting pipe and a second connecting pipe, the first fixing member is used to close and open the first circuit breaker, the second fixing member is used to close and open the second circuit breaker, the first connecting pipe and the second connecting pipe are horizontally arranged on the inner wall of the shell, the first end of the linkage rope is connected to the first fixing member, and the second end of the linkage rope passes through the first connecting pipe and the second connecting pipe respectively and is connected to the second fixing member, the linkage rope is used to link the first fixing member and the second fixing member so that the first circuit breaker and the second circuit breaker are mechanically interlocked. The first fixing member and the second fixing member are respectively connected by a linkage rope, so that when the first fixing component closes the first circuit breaker, the second component opens the second circuit breaker, thereby ensuring that the first circuit breaker and the second circuit breaker are not closed at the same time, and the dual power supply can be switched quickly to reduce safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a dual power switching device provided by an embodiment of the utility model;

[0018] Figure 2 This is another structural schematic diagram of a dual power switching device provided by an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting rope connection provided by the embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the second connecting pipe provided in an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the first fixing member provided in an embodiment of the utility model.

[0022] Figure markings: housing 1, first circuit breaker 2, first fixing piece 21, cross groove 211, screw head 212, first hollow stud 213, first screw 214, first connecting opening 215, first gasket 216, second circuit breaker 3, second fixing piece 31, linkage rope 4, second connecting pipe 5, second bent pipe 51, R chamfer 52, second straight pipe 53, mounting base plate 6, first connecting pipe 7. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0025] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, unless otherwise specified, "plurality" means two or more.

[0026] First, refer to Figure 1-2 The present invention provides a dual power switching device, comprising:

[0027] Shell 1;

[0028] A switch mechanism, the switch mechanism comprising a first circuit breaker 2 and a second circuit breaker 3, the first circuit breaker 2 and the second circuit breaker 3 are horizontally arranged on the housing 1, the first circuit breaker 2 is used to switch a first power source, and the second circuit breaker 3 is used to switch a second power source;

[0029] The switching mechanism includes a first fixing member 21, a second fixing member 31, a linkage rope 4, a first connecting pipe 7 and a second connecting pipe 5. The first fixing member 21 is used for closing and opening the first circuit breaker 2, and the second fixing member 31 is used for closing and opening the second circuit breaker 3. The first connecting pipe 7 and the second connecting pipe 5 are horizontally arranged on the inner wall of the shell 1. The first end of the linkage rope 4 is connected to the first fixing member 21, and the second end of the linkage rope 4 passes through the first connecting pipe 7 and the second connecting pipe 5 respectively and is connected to the second fixing member 31. The linkage rope 4 is used to link the first fixing member 21 and the second fixing member 31 so that the first circuit breaker 2 and the second circuit breaker 3 are mechanically interlocked.

[0030] Specifically, a mounting base plate 6 is provided on the housing 1, and the internal components of the dual power switching device are protected by the mounting base plate 6. The dual power switching device can quickly switch the first power supply and the second power supply, and specifically the first power supply includes a common power supply, and the second power supply includes a backup power supply, which is not limited here. The first circuit breaker 2 and the second circuit breaker 3 are horizontally arranged on the housing 1, and the first power supply is switched on and off by the first circuit breaker 2, and the second power supply is switched on and off by the second circuit breaker 3; the first circuit breaker 2 is closed and opened by the first fixing member 21, and the second circuit breaker 3 is closed and opened by the second fixing member 31. When the first circuit breaker 2 is closed, the first power supply is opened to access the power grid, and when the first circuit breaker 2 is opened, the first power supply is closed. Similarly, when the second circuit breaker 3 is closed, the second power supply is opened to access the power grid, and when the second circuit breaker 3 is opened, the second power supply is closed. The first end of the linkage rope 4 is connected to the first fixing member 21, and the second end of the linkage rope 4 is connected to the second fixing member 31 after passing through the first connecting tube 7 and the second connecting tube 5 respectively. The first circuit breaker 2 and the second circuit breaker 3 are mechanically interlocked through the linkage rope 4, and the first circuit breaker 2 and the second circuit breaker 3 are in opposite closing and opening states, thereby ensuring that the power grid is only connected to a single power supply at a time, reducing safety hazards, and through mechanical interlocking, the dual power supplies are switched quickly.

[0031] In some optional embodiments, the materials of the first connecting pipe 7 and the second connecting pipe 5 both include metal materials.

[0032] Specifically, the linkage rope 4 is made of a stainless steel rope, and the first connecting tube 7 and the second connecting tube 5 are both made of stainless steel tubes, so as to ensure the stability and durability of the linkage rope 4, the first connecting tube 7 and the second connecting tube 5.

[0033] In some optional embodiments, the first connecting pipe 7 is disposed below the first circuit breaker 2 , the second connecting pipe 5 is disposed below the second circuit breaker 3 , and the first connecting pipe 7 and the second connecting pipe 5 are disposed opposite to each other.

[0034] Specifically, the first connecting tube 7 and the second connecting tube 5 respectively change the moving directions of the two ends of the linkage rope 4, thereby ensuring that the first end and the second end of the linkage rope 4 can both move upward or downward, and the first end and the second end of the linkage rope 4 move in opposite directions. The first connecting tube 7 and the second connecting tube 5 are arranged opposite to each other, and the linkage efficiency of the linkage rope 4 is high.

[0035] In some optional embodiments, the first connecting pipe 7 and the second connecting pipe 5 have the same structure, the first connecting pipe 7 includes a first bent pipe and a first straight pipe, the first end of the first bent pipe is fixedly connected to the second end of the first straight pipe, the second connecting pipe 5 includes a second bent pipe 51 and a second straight pipe 53, the first end of the second bent pipe 51 is fixedly connected to the second end of the second straight pipe 53.

[0036] Specifically, refer to Figure 1-3 , the first end of the first curved pipe is fixedly connected to the second end of the first straight pipe, the second end of the first curved pipe guides the linkage rope 4 vertically to the first circuit breaker 2, and the first end of the first curved pipe guides the linkage rope 4 horizontally to the first straight pipe; similarly, the first end of the second curved pipe 51 is fixedly connected to the second end of the second straight pipe 53, the second end of the second curved pipe 51 guides the linkage rope 4 vertically to the second circuit breaker 3, and the first end of the second curved pipe 51 guides the linkage rope 4 horizontally to the second straight pipe 53. Thus, it is ensured that the first end and the second end of the linkage rope 4 can both move upward or downward, and the first end and the second end of the linkage rope 4 move in opposite directions, so that the first circuit breaker 2 and the second circuit breaker 3 are mechanically interlocked.

[0037] In some optional embodiments, the bending point of the first bent pipe and the bending point of the second bent pipe 51 both have an R chamfer 52 .

[0038] Specifically, refer to Figure 4 The bending part of the first bending pipe and the bending part of the second bending pipe 51 have the same R chamfer 52. The R chamfer 52 ensures smooth linkage of the linkage rope 4 and reduces the wear of the linkage rope 4.

[0039] In some optional embodiments, the first fixing member 21 and the second fixing member 31 have the same structure, the first fixing member 21 includes a first hollow stud 213, a first screw 214 and a first gasket 216, the second end of the first screw 214 passes through the first gasket 216 and the first hollow stud 213 respectively, the first gasket 216 is provided with a first connecting opening 215, the first connecting opening 215 is connected to the first end of the linkage rope 4, the second fixing member 31 includes a second hollow stud, a second screw and a second gasket, the second end of the second screw passes through the second gasket and the second hollow stud respectively, the second gasket is provided with a second connecting opening, and the second connecting opening is connected to the second end of the linkage rope 4.

[0040] Specifically, refer to Figure 5The first fixing member 21 is composed of a first hollow stud 213, a first screw 214 and a first gasket 216. The second end of the first screw 214 passes through the first gasket 216 and the first hollow stud 213 respectively, and is fixed to the first circuit breaker 2 by the first hollow stud 213 and the first screw 214. The first gasket 216 is provided with a first connecting opening 215, and the first connecting opening 215 is connected to the first end of the linkage rope 4. When the linkage rope 4 pulls the first gasket 216 downward, the first circuit breaker 2 is driven to close, thereby turning on the first power supply. On the contrary, when the first gasket 216 is pulled upward, the first circuit breaker 2 is driven to open, thereby turning off the first power supply. The second fixing member 31 is composed of a second hollow stud, a second screw and a second gasket. The second end of the second screw passes through the second gasket and the second hollow stud respectively, and is fixed to the second circuit breaker 3 by the second hollow stud and the second screw. The second gasket is provided with a second connecting opening, and the second connecting opening is connected to the second end of the linkage rope 4. When the linkage rope 4 pulls the second gasket downward, the second circuit breaker 3 is driven to close, thereby turning on the second power supply. On the contrary, when the second gasket is pulled upward, the second circuit breaker 3 is driven to open, thereby turning off the second power supply.

[0041] In some optional embodiments, a cross groove 211 is disposed at the first end of the first screw 214 and the first end of the second screw.

[0042] Specifically, refer to Figure 5 By providing a cross groove 211 at the first end of the first screw 214 and the screw head 212 of the second screw, it is convenient to rotate the first screw 214 and the second screw.

[0043] In some optional embodiments, a first handle separation and combination cap hole is provided on the first circuit breaker 2, and a second handle separation and combination cap hole is provided on the second circuit breaker 3. The first hollow stud 213 and the first screw 214 are fixed in the first handle separation and combination cap hole, and the second hollow stud and the second screw are fixed in the second handle separation and combination cap hole.

[0044] Specifically, refer to Figure 2-5The first hollow stud 213 and the first screw 214 are fixed in the first handle separation cap hole, so that when the first gasket 216 is pulled downward by the linkage rope 4, the first handle separation cap is driven downward by the first hollow stud 213 and the first screw 214 to close the cap, so that the first circuit breaker 2 is closed, and when the first gasket 216 is pulled upward, the first hollow stud 213 and the first screw 214 are driven upward to open the cap, so that the first circuit breaker 2 is opened. Similarly, the second hollow stud and the second screw are fixed in the second handle separation cap hole, so that when the second gasket is pulled downward by the linkage rope 4, the second handle separation cap is driven downward by the second hollow stud and the second screw to close the cap, so that the second circuit breaker 3 is closed, and when the second gasket is pulled upward, the second handle separation cap is driven upward to open the cap, so that the second circuit breaker 3 is opened.

[0045] The implementation of the utility model embodiment includes the following beneficial effects: The utility model embodiment provides a dual power switching device, including: a shell 1; a switching mechanism, the switching mechanism including a first circuit breaker 2 and a second circuit breaker 3, the first circuit breaker 2 and the second circuit breaker 3 are horizontally arranged on the shell 1, the first circuit breaker 2 is used to switch the first power supply, and the second circuit breaker 3 is used to switch the second power supply; the switching mechanism includes a first fixing member 21, a second fixing member 31, a linkage rope 4, a first connecting pipe 7 and a second connecting pipe 5, the first fixing member 21 is used to close and open the first circuit breaker 2, the second fixing member 31 is used to close and open the second circuit breaker 3, the first connecting pipe 7 and the second connecting pipe 5 are horizontally arranged on the inner wall of the shell 1, the first end of the linkage rope 4 is connected to the first fixing member 21, the second end of the linkage rope 4 passes through the first connecting pipe 7 and the second connecting pipe 5 respectively and is connected to the second fixing member 31, the linkage rope 4 is used to link the first fixing member 21 and the second fixing member 31 so that the first circuit breaker 2 and the second circuit breaker 3 are mechanically interlocked. The first fixing member 21 and the second fixing member 31 are respectively connected by the linkage rope 4, so that when the first fixing component closes the first circuit breaker 2, the second component opens the second circuit breaker 3, thereby ensuring that the first circuit breaker 2 and the second circuit breaker 3 are not closed at the same time, and the dual power supply can be switched quickly to reduce safety hazards.

[0046] In a second aspect, an embodiment of the utility model provides a dual power switching system, including the dual power switching device mentioned above.

[0047] It can be seen that the contents of the above-mentioned device embodiments are all applicable to the present system embodiments, the functions specifically implemented by the present system embodiments are the same as those of the above-mentioned device embodiments, and the beneficial effects achieved are also the same as those achieved by the above-mentioned device embodiments.

[0048] In the description of this specification, the description with reference to the term "in a specific embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A dual power switching device, characterized in that: include: shell; A switch mechanism, the switch mechanism comprising a first circuit breaker and a second circuit breaker, the first circuit breaker and the second circuit breaker are horizontally arranged on the housing, the first circuit breaker is used to switch a first power source, and the second circuit breaker is used to switch a second power source; The switching mechanism includes a first fixing member, a second fixing member, a linkage rope, a first connecting pipe and a second connecting pipe, the first fixing member is used to close and open the first circuit breaker, the second fixing member is used to close and open the second circuit breaker, the first connecting pipe and the second connecting pipe are horizontally arranged on the inner wall of the shell, the first end of the linkage rope is connected to the first fixing member, and the second end of the linkage rope passes through the first connecting pipe and the second connecting pipe respectively and is connected to the second fixing member, and the linkage rope is used to link the first fixing member and the second fixing member so that the first circuit breaker and the second circuit breaker are mechanically interlocked.

2. The dual power switching device according to claim 1, characterized in that: The first connecting pipe and the second connecting pipe are both made of metal.

3. The dual power switching device according to claim 2, characterized in that: The first connecting pipe is arranged below the first circuit breaker, the second connecting pipe is arranged below the second circuit breaker, and the first connecting pipe and the second connecting pipe are arranged opposite to each other.

4. The dual power switching device according to claim 3, characterized in that: The first connecting pipe and the second connecting pipe have the same structure. The first connecting pipe includes a first bent pipe and a first straight pipe. The first end of the first bent pipe is fixedly connected to the second end of the first straight pipe. The second connecting pipe includes a second bent pipe and a second straight pipe. The first end of the second bent pipe is fixedly connected to the second end of the second straight pipe.

5. The dual power switching device according to claim 4, characterized in that: The bending point of the first bent pipe and the bending point of the second bent pipe both have R chamfers.

6. The dual power switching device according to claim 1, characterized in that: The first fixing member and the second fixing member have the same structure, the first fixing member includes a first hollow stud, a first screw and a first gasket, the second end of the first screw passes through the first gasket and the first hollow stud respectively, the first gasket is provided with a first connecting opening, the first connecting opening is connected to the first end of the linkage rope, the second fixing member includes a second hollow stud, a second screw and a second gasket, the second end of the second screw passes through the second gasket and the second hollow stud respectively, the second gasket is provided with a second connecting opening, the second connecting opening is connected to the second end of the linkage rope.

7. The dual power switching device according to claim 6, characterized in that: A cross groove is disposed on the first end of the first screw and the first end of the second screw.

8. The dual power switching device according to claim 6, characterized in that: The first circuit breaker is provided with a first handle separation and combination cap hole, and the second circuit breaker is provided with a second handle separation and combination cap hole. The first hollow stud and the first screw are fixed in the first handle separation and combination cap hole, and the second hollow stud and the second screw are fixed in the second handle separation and combination cap hole.

9. A dual power switching system, characterized in that: It comprises the dual power switching device as described in any one of claims 1 to 8.

Images