CN214753434U - Transmission mechanism for grounding knife, switch cabinet with transmission mechanism and electrical equipment - Google Patents
Transmission mechanism for grounding knife, switch cabinet with transmission mechanism and electrical equipment Download PDFInfo
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- CN214753434U CN214753434U CN202120402994.5U CN202120402994U CN214753434U CN 214753434 U CN214753434 U CN 214753434U CN 202120402994 U CN202120402994 U CN 202120402994U CN 214753434 U CN214753434 U CN 214753434U
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Abstract
The utility model relates to a transmission mechanism for a grounding knife, a switch cabinet and electrical equipment provided with the transmission mechanism, wherein the transmission mechanism comprises a first transmission shaft, a second transmission shaft and a third transmission shaft, wherein the first end of the first transmission shaft is provided with a first connecting part for changing the transmission direction of torque; the first end of the second transmission shaft is in transmission connection with the second end of the first transmission shaft; the first end of the third transmission shaft is in transmission connection with the second end of the second transmission shaft, and the second end of the third transmission shaft is provided with a third connecting part for changing the torque transmission direction. The transmission mechanism can enable the vertical distance between the second transmission shaft and the C-phase copper bar in the switch cabinet to be more than 300mm through the first transmission shaft and the third transmission shaft, and can realize opening and closing of the grounding switch through transmission so as to improve the safety of the switch cabinet; in addition, the transmission mechanism can keep the volume of the switch cabinet not to be increased while improving the safety of the switch cabinet, and the arrangement of electric elements in the switch cabinet is not disturbed.
Description
Technical Field
The utility model relates to an electrical equipment technical field especially relates to a drive mechanism and cubical switchboard for earthing switch.
Background
With the rapid development of the industry, the electrical load and the quality of the electricity are improved, and thus the requirements on the safety of the high-voltage switchgear are higher and higher. The 35kV metal armored movable switch equipment can be used for protecting and controlling electrical equipment in industrial fields such as industrial and mining enterprises, power plants, transformer substations and the like so as to be suitable for places with various loads of different properties and frequent operation.
At present, according to the latest standard of GB3906-2006, the requirement for the insulation distance of a high-voltage switch cabinet with the voltage class of 35kV relatively has to meet 300mm to be able to meet the insulation requirement of the switch cabinet.
However, in the switch cabinet in the prior art, the insulation distance of the rear cabinet grounding switch operating shaft to the C-phase copper bar is usually less than 300mm, and potential safety hazards exist when a discharge flashover is generated in an insulation withstand voltage test overshoot. Therefore, the insulation distance of the rear cabinet grounding switch operating shaft to the C-phase copper bar needs to be kept above 300mm, but the insulation distance tends to increase the volume of the switch cabinet, and the arrangement of electric elements in the existing switch cabinet can be disturbed.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing a drive mechanism, install this drive mechanism's cubical switchboard and electrical equipment for earthing switch to when solving the insulating distance of the interior back cabinet earthing switch operating axis of cubical switchboard to C looks copper bar among the prior art, lead to the volume of cubical switchboard to increase and disturb the problem of its inside electric elements's arrangement.
In order to achieve the above object, the utility model provides a following technical scheme:
in a first aspect, the present invention provides a transmission mechanism for a grounding switch, the transmission mechanism includes:
the first end of the first transmission shaft is provided with a first connecting part for changing the torque transmission direction and is used for connecting a driving mechanism for driving the grounding knife to be switched on and switched off;
the first end of the second transmission shaft is in transmission connection with the second end of the first transmission shaft;
and the first end of the third transmission shaft is in transmission connection with the second end of the second transmission shaft, and the second end of the third transmission shaft is provided with a third connecting part for changing the torque transmission direction and is used for transmission connection with the grounding switch to realize switching-on and switching-off of the grounding switch.
In some optional embodiments, the first connection portion comprises:
the first connecting piece comprises two first connecting plates and a first middle connecting plate connected between the two first connecting plates, and the first end of the first transmission shaft is connected with the first middle connecting plate;
the first crank arm assembly is connected with the first connecting plate through a first connecting pin.
In some alternative embodiments, the first crank arm assembly includes a first cylinder and a first connecting tab fixedly connected to a sidewall of the first cylinder, the first connecting tab being connected to the first connecting plate by the first connecting pin.
In some alternative embodiments, the first end and the second end of the second transmission shaft are provided with second connecting portions for changing the torque transmission direction.
In some optional embodiments, the second connection portion comprises:
the second connecting piece is U-shaped, and one end of the second connecting piece is connected with the second end of the first transmission shaft or the first end of the third transmission shaft;
and the second crank arm assembly is connected with the other end of the second connecting piece through a second connecting pin.
In some optional embodiments, the second crank arm assembly includes a second cylinder and a second connecting piece fixedly connected to a side wall of the second cylinder, the second cylinder is sleeved on the second transmission shaft, and the second connecting piece is connected to the other end of the second connecting piece through the second connecting pin.
In some optional embodiments, the third connection portion comprises:
one end of the third connecting piece is connected with the second end of the third transmission shaft;
the width of the third crank arm is gradually reduced from the first end to the second end, the second end of the third crank arm is connected with the other end of the third connecting piece through a third connecting pin, and the first end of the third crank arm is in transmission connection with the grounding knife.
In some alternative embodiments, the third connector comprises:
the second connecting plates are provided with straight sections and bent sections, and the bent sections of the second connecting plates are connected with the second ends of the second crank arms through second connecting pins;
and the third middle connecting plate is used for connecting the two third connecting plates.
In a second aspect, the present invention provides a switch cabinet, wherein the transmission mechanism is installed in any one of the above embodiments.
In a third aspect, the present invention further provides an electrical device, wherein the switch cabinet is included in the above-mentioned embodiment.
The utility model provides a drive mechanism for earthing sword, including first transmission shaft, second transmission shaft and third transmission shaft, wherein, the first end of first transmission shaft is equipped with the first connecting portion that changes moment transmission direction, is used for connecting the actuating mechanism who drives earthing sword divide-shut brake; the first end of the second transmission shaft is in transmission connection with the second end of the first transmission shaft; the first end of the third transmission shaft is in transmission connection with the second end of the second transmission shaft, and the second end of the third transmission shaft is provided with a third connecting part for changing the torque transmission direction and is used for being in transmission connection with the grounding switch to achieve switching on and switching off of the grounding switch. Above-mentioned drive mechanism can make the vertical distance between the C looks copper bar in second transmission shaft and the cubical switchboard more than 300mm through first transmission shaft and third transmission shaft, but also can realize the divide-shut brake of earthing switch by easier transmission to improve the security of cubical switchboard. In addition, the transmission mechanism can keep the volume of the switch cabinet not to be increased while improving the safety of the switch cabinet, and the arrangement of electric elements in the switch cabinet is not disturbed.
In addition to the technical problems, technical features constituting technical solutions, and advantageous effects brought by the technical features of the technical solutions described above, the present invention provides other technical problems that can be solved by the transmission mechanism for the grounding switch, the switch cabinet and the electrical equipment equipped with the transmission mechanism, other technical features included in the technical solutions, and advantageous effects brought by the technical features, which will be described in further detail in specific embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a transmission mechanism provided in embodiment 1 of the present invention;
fig. 2 is a side view of a transmission mechanism provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a first connecting portion in a transmission mechanism provided in embodiment 1 of the present invention;
fig. 4 is a side view of a first connecting portion in a transmission mechanism provided in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a third connecting portion in the transmission mechanism provided in embodiment 1 of the present invention;
fig. 6 is a side view of a third connecting portion in the transmission mechanism provided in embodiment 1 of the present invention;
fig. 7 is a side view of a switch cabinet provided in embodiment 2 of the present invention;
fig. 8 is a front view of a switch cabinet provided in embodiment 2 of the present invention.
Description of reference numerals:
1: a switch cabinet;
10: a transmission mechanism;
11: a first drive shaft;
111: a first connection portion;
1111: a first connecting member;
1111-1: a first connecting plate;
1111-2: a first intermediate connecting plate;
1112: a first crank arm assembly;
1112-1: a first cylinder;
1112-2: a first connecting piece;
1113: a first connecting pin;
12: a second drive shaft;
121: a second connecting portion;
1211: a second connecting member;
1212: a second crank arm assembly;
1212-1: a second cylinder;
1212-2: a second connecting sheet;
1213: a second connecting pin;
13: a third drive shaft;
131: a third connecting portion;
1311: a third connecting member;
1311-1: a third connecting plate;
1311-2: a third intermediate connecting plate;
1312: a third crank arm;
1313: a third connecting pin;
20-grounding knife.
Detailed description of the preferred embodiments
The embodiments or implementation schemes in the specification are described in a progressive mode, each embodiment focuses on differences from other embodiments, and the same parts and the similar parts among the embodiments are mutually referred.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the switch cabinet in the prior art, the insulation distance of the rear cabinet grounding switch operating shaft to the C-phase copper bar is usually less than 300mm, and potential safety hazards exist when the insulation withstand voltage test overshoots to generate discharge flashover. Therefore, the insulation distance of the rear cabinet grounding switch operating shaft to the C-phase copper bar needs to be kept above 300mm, but the insulation distance tends to increase the volume of the switch cabinet, and the arrangement of electric elements in the existing switch cabinet can be disturbed.
In order to solve the above problem, an embodiment of the present invention provides a transmission mechanism for a grounding switch, including a first transmission shaft, a second transmission shaft, and a third transmission shaft, wherein a first end of the first transmission shaft is provided with a first connection portion for changing a torque transmission direction, and the first connection portion is used for connecting a driving mechanism for driving the grounding switch to open and close; the first end of the second transmission shaft is in transmission connection with the second end of the first transmission shaft; the first end of the third transmission shaft is in transmission connection with the second end of the second transmission shaft, and the second end of the third transmission shaft is provided with a third connecting part for changing the torque transmission direction and is used for being in transmission connection with the grounding switch so as to realize switching on and switching off of the grounding switch. Above-mentioned drive mechanism can make the vertical distance between the C looks copper bar in second transmission shaft and the cubical switchboard more than 300mm through first transmission shaft and third transmission shaft, but also can realize the divide-shut brake of earthing switch by easier transmission to improve the security of cubical switchboard. In addition, the transmission mechanism can keep the volume of the switch cabinet not to be increased while improving the safety of the switch cabinet, and the arrangement of electric elements in the switch cabinet is not disturbed.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a transmission mechanism for a grounding switch, where the transmission mechanism 10 includes a first transmission shaft 11, a second transmission shaft 12 and a third transmission shaft 13, where a first end of the first transmission shaft 11 is provided with a first connection portion 111 for changing a torque transmission direction, and the first connection portion is used for connecting a driving mechanism for driving the grounding switch to open and close; the first end of the second transmission shaft 12 is in transmission connection with the second end of the first transmission shaft 11; the first end of the third transmission shaft 13 is in transmission connection with the second end of the second transmission shaft 12, and the second end of the third transmission shaft 13 is provided with a third connecting part 131 for changing the torque transmission direction and is used for being in transmission connection with a grounding switch to realize switching on and off of the grounding switch. In addition, the vertical distance between the second transmission shaft 12 and the C-phase copper bar in the switch cabinet is more than 300 mm.
The utility model discloses in relate to the cubical switchboard, it includes the preceding cabinet body and the back cabinet body, and above-mentioned drive mechanism 10 and earthing switch set up at the back cabinet internally, and actuating mechanism then sets up in the front the cabinet is internal. As described above, the driving mechanism is connected with the first transmission shaft 11 through the first connecting portion 111, so as to change the direction of torque transmission, and transmit the driving force to the first transmission shaft 11, then the first transmission shaft 11 transmits the force to the second transmission shaft 12, and the second transmission shaft 12 is in transmission connection with the third transmission shaft 13, so as to transmit the force to the third transmission shaft 13, because the second end of the third transmission shaft 13 is provided with the third connecting portion 131, the third connecting portion 131 can change the direction of torque transmission, so as to transmit the force to the operating mechanism in the grounding switch, and thus the opening and closing of the grounding switch are realized.
Further, in the present embodiment, there is no particular limitation on the lengths of the first transmission shaft 11, the second transmission shaft 12 and the third transmission shaft 13 in the transmission mechanism 10, and the lengths may be designed according to the size of the switch cabinet. In some alternative embodiments, the length of the first transmission shaft 11 and the third transmission shaft 13 in the transmission mechanism 10 is generally about 670mm, and the length of the second transmission shaft 12 is generally about 730 mm.
In addition, as shown in fig. 1, the transmission mechanism 10 is in a U-shape, i.e., the second transmission shaft 12 is located between the first transmission shaft 11 and the third transmission shaft 13 and is connected to the first transmission shaft 11 and the third transmission shaft 13, respectively, and as can be seen from fig. 1, the first transmission shaft 11 and the third transmission shaft 13 are perpendicular to the second transmission shaft 12. In other alternative embodiments, the angle between the first transmission shaft 11 and/or the third transmission shaft 13 and the second transmission shaft 12 may be greater than 90 ° or less than 90 °, and the specific angle may be designed according to the arrangement in the switch cabinet.
In some alternative embodiments, the first connection portion 111 that changes the torque transmission direction includes: a first link 1111 and a first crank arm assembly 1112, as shown in fig. 3. The first connecting member 1111 includes two first connecting plates 1111-1 and a first intermediate connecting plate 1111-2 connected between the two first connecting plates 1111-1, and the first end of the first transmission shaft 11 passes through a connecting hole of the first intermediate connecting plate 1111-2 to be connected therewith. The first crank arm assembly 1112 is connected with the first connection plates 1111-1 through the first connection pin 1113, that is, the first connection pin 1113 is located between the two first connection plates 1111-1, and sequentially passes through the connection hole of one of the first connection plates 1111-1 and the connection hole of the first crank arm assembly 1112, and finally passes through the connection hole of the other first connection plate 1111-1, so that one end of the first crank arm assembly 1112 is connected with the first connection plate 1111-1, and the other end of the first crank arm assembly 1112 is used for connecting with the driving mechanism on the front cabinet.
Further, in some alternative embodiments, the first crank arm assembly 1112 includes a first cylinder 1112-1 and a first connecting tab 1112-2 fixedly connected to a sidewall of the first cylinder 1112-1, the first connecting tab 1112-2 being connected to the first connecting plate 1111-1 by a first connecting pin 1113, as can be seen in particular in fig. 4.
Furthermore, the first connecting piece 1112-2 is perpendicularly connected to the outer side wall of the first cylinder 1112-1, so that the occupied space in the switch cabinet is smaller, and other electric elements can be arranged conveniently. In addition, the first cylinder 1112-1 can be fitted over a drive shaft in the drive mechanism through which the driving force is applied.
In some alternative embodiments, in order to better transmit the driving force to the second transmission shaft 12 and the third transmission shaft 13, a second connection portion 121 capable of changing the torque transmission direction is provided at each of the first end and the second end of the second transmission shaft 12.
Further, in some alternative embodiments, the second connection portion 121 for changing the torque transmission direction includes: a second connector 1211 and a second crank arm assembly 1212. The second connector 1211 is U-shaped, and one end of the second connector 1211 is connected to the second end of the first transmission shaft 11 or the first end of the third transmission shaft 13. And the second crank arm assembly 1212 is connected to the other end of the second connector 1211 by a second connection pin 1213.
It can be understood that, in order to further reduce the occupied space of the transmission mechanism 10 in the switch cabinet and facilitate the arrangement of other electrical components, the structure of the second connecting member 1211 is the same as that of the first connecting member 1111, and at the same time, the structure of the second crank arm assembly 1212 is the same as that of the first crank arm assembly 1112, that is, the second connecting member 1211 includes two second connecting plates and a second intermediate connecting plate connected between the two second connecting plates, and the second end of the first transmission shaft 11 passes through the connecting hole of the second intermediate connecting plate to be connected therewith. And the second crank arm assembly 1212 is connected to the second connecting plate by a second connecting pin 1213, that is, the second connecting pin 1213 is located between the two second connecting plates, and sequentially passes through the connecting hole of one of the second connecting plates and the connecting hole of the second crank arm assembly 1212, and finally passes through the connecting hole of the other second connecting plate, so that one end of the second crank arm assembly 1212 is connected to the second connecting plate.
The second crank arm assembly 1212 includes a second cylinder 1212-1 and a second connecting piece 1212-2 fixedly connected to a sidewall of the second cylinder 1212-1, the second cylinder 1212-1 is disposed on the second transmission shaft 12, and the second connecting piece 1212-2 is connected to the other end of the second connecting member 1211 through a second connecting pin 1213.
It is understood that the first end and the second end of the second transmission shaft 12 are respectively sleeved with a second cylinder 1212-1 and connected with the second connector 1211 through a second connecting piece 1212-2.
In order to transmit the force on the third transmission shaft 13 to the operating shaft of the grounding switch to realize the opening and closing of the grounding switch, a third connecting portion 131 for changing the torque transmission direction is provided at the second end of the third transmission shaft 13. In some alternative embodiments, the third connection portion 131 includes: a third link 1311 and a third crank 1312, as shown in fig. 5. One end of the third connecting piece 1311 is connected to the second end of the third transmission shaft 13, the width of the third connecting lever 1312 gradually decreases from the first end to the second end, the second end of the third connecting lever 1313 is connected to the other end of the third connecting piece 1311, the first end of the third connecting lever 1312 is in transmission connection with an operating shaft on the grounding switch, and therefore when the grounding switch is operated, the driving mechanism can be driven to transmit driving force to the operating shaft of the grounding switch, and switching-on and switching-off of the grounding switch are achieved.
In some alternative embodiments, third connector 1311 comprises: two third connecting plates 1311-1 and a third intermediate connecting plate 1311-2 connected between the two third connecting plates 1311-1, as shown in fig. 6. Wherein the third connecting plate 1311-1 has a straight section and a curved section, and the curved section of the third connecting plate 1311-1 is connected to the second end of the third crank arm 1312 by a third connecting pin 1313. The third connecting piece 1311 and the third crank arm are arranged to make the operation stroke larger and more labor-saving in the process of performing the opening and closing of the grounding switch, so that the opening and closing of the grounding switch can be easily realized.
To sum up, the utility model provides a vertical distance between the C looks copper bar that drive mechanism can make in second transmission shaft and the ground connection sword through first transmission shaft and third transmission shaft is more than 300mm, but also can realize the divide-shut brake of ground connection sword by easier transmission to improve the security of cubical switchboard. In addition, the transmission mechanism can keep the volume of the switch cabinet not to be increased while improving the safety of the switch cabinet, and the arrangement of electric elements in the switch cabinet is not disturbed.
Example 2
The present embodiment further provides a switch cabinet based on the characteristics of the transmission mechanism, as shown in fig. 7 and 8, the switch cabinet 1 is installed with the transmission mechanism 10 of any one of the above embodiments.
Because install drive mechanism 10 in the cubical switchboard 1, can make through this drive mechanism 10 and can make the vertical distance between the C looks copper bar of back cabinet in second transmission shaft and the cubical switchboard more than 300mm, but also can realize the divide-shut brake of earthing switch by easier transmission to improve the security of cubical switchboard. In addition, the transmission mechanism can improve the safety of the switch cabinet and can keep the volume of the switch cabinet from increasing, thereby reducing the production cost; and also does not disturb the arrangement of the electrical components within the switchgear.
Example 3
The embodiment of the utility model provides an electrical equipment is still further provided, including cubical switchboard 1 among the above-mentioned embodiment in this electrical equipment, consequently, the utility model provides an electrical equipment has better security performance at the operation in-process.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless explicitly stated otherwise, the terms "mounting," "connecting," "fixing," and the like are to be understood in a broad sense, and for example, may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected internally or in any other manner known to those skilled in the art, unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A drive mechanism for a grounding switch, the drive mechanism comprising:
the first end of the first transmission shaft is provided with a first connecting part for changing the torque transmission direction and is used for connecting a driving mechanism for driving the grounding knife to be switched on and switched off;
the first end of the second transmission shaft is in transmission connection with the second end of the first transmission shaft;
and the first end of the third transmission shaft is in transmission connection with the second end of the second transmission shaft, and the second end of the third transmission shaft is provided with a third connecting part for changing the torque transmission direction and is used for transmission connection with the grounding switch to realize switching-on and switching-off of the grounding switch.
2. The transmission mechanism as claimed in claim 1, wherein the first connection portion comprises:
the first connecting piece comprises two first connecting plates and a first middle connecting plate connected between the two first connecting plates, and the first end of the first transmission shaft is connected with the first middle connecting plate;
the first crank arm assembly is connected with the first connecting plate through a first connecting pin.
3. The transmission mechanism as claimed in claim 2, wherein the first crank arm assembly includes a first cylinder and a first connecting plate fixedly connected to a side wall of the first cylinder, the first connecting plate being connected to the first connecting plate by the first connecting pin.
4. A transmission according to any one of claims 1 to 3, wherein the first and second ends of the second drive shaft are each provided with a second connecting portion for changing the direction of torque transmission.
5. The transmission mechanism as claimed in claim 4, wherein the second connecting portion comprises:
the second connecting piece is U-shaped, and one end of the second connecting piece is connected with the second end of the first transmission shaft or the first end of the third transmission shaft;
and the second crank arm assembly is connected with the other end of the second connecting piece through a second connecting pin.
6. The transmission mechanism as claimed in claim 5, wherein the second crank arm assembly includes a second cylinder and a second connecting piece fixedly connected to a side wall of the second cylinder, the second cylinder is sleeved on the second transmission shaft, and the second connecting piece is connected to the other end of the second connecting piece through the second connecting pin.
7. The transmission mechanism as claimed in claim 1, wherein the third connecting portion comprises:
one end of the third connecting piece is connected with the second end of the third transmission shaft;
the width of the third crank arm is gradually reduced from the first end to the second end, the second end of the third crank arm is connected with the other end of the third connecting piece through a third connecting pin, and the first end of the third crank arm is in transmission connection with the grounding knife.
8. The transmission mechanism as recited in claim 7, wherein the third link comprises:
the second connecting plates are provided with straight sections and bent sections, and the bent sections of the second connecting plates are connected with the second ends of the second crank arms through second connecting pins;
and the third middle connecting plate is used for connecting the two third connecting plates.
9. A switchgear cabinet, characterized in that a transmission according to any of claims 1-8 is installed in the switchgear cabinet.
10. An electrical apparatus, characterized in that it comprises a switchgear cabinet according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120402994.5U CN214753434U (en) | 2021-02-24 | 2021-02-24 | Transmission mechanism for grounding knife, switch cabinet with transmission mechanism and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120402994.5U CN214753434U (en) | 2021-02-24 | 2021-02-24 | Transmission mechanism for grounding knife, switch cabinet with transmission mechanism and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214753434U true CN214753434U (en) | 2021-11-16 |
Family
ID=78589517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120402994.5U Active CN214753434U (en) | 2021-02-24 | 2021-02-24 | Transmission mechanism for grounding knife, switch cabinet with transmission mechanism and electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214753434U (en) |
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2021
- 2021-02-24 CN CN202120402994.5U patent/CN214753434U/en active Active
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Address after: 411201 28 Bai Shi Road, Jing Kai District, Xiangtan, Hunan Patentee after: Weisheng Energy Technology Co.,Ltd. Address before: 411201 28 Bai Shi Road, Jing Kai District, Xiangtan, Hunan Patentee before: WASION ELECTRIC Co.,Ltd. |
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