CN210668158U - Mechanical locking and interlocking device for high-voltage isolating switch control cabinet - Google Patents
Mechanical locking and interlocking device for high-voltage isolating switch control cabinet Download PDFInfo
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- CN210668158U CN210668158U CN201921977018.1U CN201921977018U CN210668158U CN 210668158 U CN210668158 U CN 210668158U CN 201921977018 U CN201921977018 U CN 201921977018U CN 210668158 U CN210668158 U CN 210668158U
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Abstract
The utility model discloses a mechanical locking and interlocking device of a high-voltage isolating switch control cabinet, which comprises a first closing assembly and a second closing assembly; the first closing assembly comprises a first handle and a first rotating rod; the second closing assembly comprises a second handle and a second rotating rod; the first rotating rod is rotatably embedded in a cabinet door of the first high-voltage cabinet; one end of the first handle is fixedly connected with the first rotating rod; the second rotating rod is rotatably embedded in the cabinet door of the second high-voltage cabinet; one end of the second handle is fixedly connected with the second rotating rod; the device also comprises a first rotating arm, a first ejector rod, a first crank arm, a middle connecting rod, a second crank arm, a second ejector rod and a second rotating arm; through the technical scheme, the isolation switches of the first high-voltage cabinet and the second high-voltage cabinet are mutually locked, namely, the isolation switch of only one high-voltage cabinet can be always in a closing state; and the interlocking device has relatively simple structure, low manufacturing cost and easy realization and popularization.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to a mechanical locking and interlocking device for a high-voltage isolating switch control cabinet.
Background
The existing high-voltage isolation switch control cabinet (hereinafter referred to as a high-voltage cabinet) only has the locking function of a single cabinet body, namely, when the cabinet door of the high-voltage cabinet is in an open state, an isolation switch in the high-voltage cabinet cannot be switched on; or when the isolating switch is in a closing state, the cabinet door of the high-voltage cabinet cannot be opened.
With the wide application of high-voltage cabinets, the situation that two high-voltage cabinets are arranged together back to back is presented, and the two high-voltage cabinets are locked with each other, namely when an isolating switch of one high-voltage cabinet is in a closing state, an isolating switch of the other high-voltage cabinet cannot be closed, and when the isolating switch of one high-voltage cabinet is in an opening state, the isolating switch of the other high-voltage cabinet can be freely opened and closed; namely, only one isolating switch of the high-voltage cabinet can be in a closing state all the time.
However, the existing high-voltage cabinets do not have the interlocking function.
Disclosure of Invention
The invention mainly aims to provide a mechanical locking and interlocking device for a high-voltage isolating switch control cabinet, and aims to solve the problem that the existing high-voltage cabinet does not have the function of mutual locking.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a mechanical locking and interlocking device for a high-voltage isolating switch control cabinet comprises a first closing assembly and a second closing assembly; the first closing assembly comprises a first handle and a first rotating rod; the second closing assembly comprises a second handle and a second rotating rod; the first rotating rod is rotatably embedded in a cabinet door of the first high-voltage cabinet; one end of the first handle is fixedly connected with the first rotating rod; the second rotating rod is rotatably embedded in a cabinet door of the second high-voltage cabinet; one end of the second handle is fixedly connected to the second rotating rod; the device also comprises a first rotating arm, a first ejector rod, a first crank arm, a middle connecting rod, a second crank arm, a second ejector rod and a second rotating arm;
one end of the first rotating arm is fixedly connected to the first rotating rod and forms a first preset angle with the first handle; the other end of the first rotating arm is hinged to one end of the first ejector rod; the middle part of the first crank arm is rotatably connected into the cabinet body of the first high-voltage cabinet; the first crank arm comprises a first upper arm and a first lower arm; the other end of the first ejector rod is hinged to the tail end of the first upper arm; one end of the middle connecting rod is provided with a waist groove; the tail end of the first lower arm penetrates through the waist groove;
the middle part of the second crank arm is rotatably connected in the cabinet body of the second high-voltage cabinet; the second crank arm comprises a second upper arm and a second lower arm; the middle connecting rod penetrates through the first high-voltage cabinet and the second high-voltage cabinet; the other end of the middle connecting rod is hinged to the tail end of the second lower arm; the tail end of the second upper arm is hinged to one end of the second ejector rod; the other end of the second ejector rod is hinged to one end of the second rotating arm; the other end of the second rotating arm is fixedly connected with the second rotating rod.
Preferably, the first crank arm and the second crank arm are consistent in structure and size; an included angle formed by the first upper arm and the first lower arm is a second preset angle; and an included angle formed by the second upper arm and the second lower arm is also equal to the second preset angle.
Preferably, the rotation center point of the first crank arm and the rotation center point of the second crank arm are located at the same height.
Preferably, the first rotating arm and the second rotating arm are consistent in structure and size; the first ejector rod and the second ejector rod are identical in structure and size.
Preferably, the end of the first lower arm penetrates through the waist groove, and specifically comprises:
the tail end of the first lower arm is provided with a sliding column; the first lower arm and the middle connecting rod are perpendicular to the sliding column; the diameter of the sliding column is smaller than the width of the waist groove.
Preferably, the interlocking device further comprises a limit nut; the length of the sliding column is larger than the diameter of the middle connecting rod; one end of the sliding column, which is far away from the first lower arm, is provided with a screw hole; the diameter of the limiting nut is larger than the width of the waist groove; a threaded rod perpendicular to the limiting nut is arranged on the inner side of the limiting nut; the threaded rod and the screw hole are arranged in a matched mode.
Preferably, the rotating shaft of the first rotating rod, the rotating shaft of the second rotating rod, the hinge shaft of the first rotating arm and the first ejector rod, the hinge shaft of the second rotating arm and the second ejector rod, the hinge shaft of the first ejector rod and the first crank arm, the hinge shaft of the second ejector rod and the second crank arm, the rotating shaft of the first crank arm, the rotating shaft of the second crank arm, the hinge shaft of the second lower arm and the middle connecting rod, and the sliding column are all parallel to each other.
Preferably, the middle connecting rod is made of stainless steel.
Compared with the prior art, the invention at least has the following beneficial effects:
through the technical scheme, the isolation switches of the first high-voltage cabinet and the second high-voltage cabinet are mutually locked, namely, the isolation switch of only one high-voltage cabinet can be always in a closing state; and the interlocking device has relatively simple structure, low manufacturing cost and easy realization and popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mechanical locking and interlocking device for a high-voltage disconnecting switch control cabinet according to an embodiment of the present invention, in which a first handle is in a closing state and a second handle is in an opening state;
fig. 2 is a schematic structural diagram of an embodiment of a mechanical locking and interlocking device for a high-voltage disconnecting switch control cabinet according to the present invention, in which a first handle is in an open state and a second handle is in an open state;
fig. 3 is a schematic structural diagram of an embodiment of a mechanical locking and interlocking device for a high-voltage disconnecting switch control cabinet according to the present invention, in which a first handle is in an open state and a second handle is in a close state;
fig. 4 is a partially enlarged schematic view of a connection structure of a middle connecting rod and a first lower arm of an embodiment of a mechanical locking and interlocking device of a high-voltage disconnecting switch control cabinet according to the invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes 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 present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a mechanical locking and interlocking device for a high-voltage isolating switch control cabinet.
Referring to fig. 1-3, a mechanical locking and interlocking device (hereinafter referred to as an interlocking device) for a high-voltage isolation switch control cabinet is introduced into a first high-voltage cabinet 100 and a second high-voltage cabinet 200 (the first high-voltage cabinet 100 and the second high-voltage cabinet 200 are identical in structure and size, the first high-voltage cabinet 100 is located on the left side, and the second high-voltage cabinet 200 is located on the right side) because the interlocking device is arranged between two high-voltage cabinets arranged back to back; the interlocking device comprises a first closing assembly and a second closing assembly; the first switch-on component is arranged on the first high-voltage cabinet 100, and the second switch-on component is arranged on the second high-voltage cabinet 200; a first window 111 is formed in a cabinet door 110 of the first high-voltage cabinet, and the first closing assembly comprises a first handle 310 and a first rotating rod 320; the first rotating rod 320 is rotatably embedded in the first window 111 of the cabinet door 110 of the first high-voltage cabinet; one end of the first handle 310 is fixedly connected to the first rotating rod 320; the first handle 310 extends outside the first high-voltage cabinet 100.
A second window 211 is formed in the cabinet door 210 of the second high-voltage cabinet, and the first window 111 and the second window 211 are identical in size and are located at the same height; the second closing assembly includes a second handle 410 and a second rotating rod 420; the second rotating rod 420 is rotatably embedded in the second window 211 of the cabinet door 210 of the second high-voltage cabinet; one end of the second handle 410 is fixedly connected to the second rotating rod 420; the second handle 410 protrudes outside the second high-voltage board 200. The first rotating bar 320 and the second rotating bar 420 are located at the same horizontal plane.
The interlock device further includes a first rotating arm 330, a first push rod 340, a first crank arm 350, a middle link 360, a second crank arm 450, a second push rod 440, and a second rotating arm 430.
The first rotating arm 330 and the second rotating arm 430 have the same structure and size, and the first push rod 340 and the second push rod 440 have the same structure and size.
One end of the first rotating arm 330 is fixedly connected to the first rotating rod 320 and forms a first preset angle (preferably 110 ° in the present embodiment) with the first handle 310; the other end of the first rotating arm 330 is hinged to one end of a first top rod 340; the middle part of the first crank arm 350 is rotatably connected with the cabinet body of the first high-voltage cabinet 100; the first crank arm 350 includes a first upper arm 351 and a first lower arm 352; the other end of the first top rod 340 is hinged at the tail end of the first upper arm 351; one end of the middle connecting rod 360 is provided with a waist groove 361; the end of the first lower arm 352 is inserted into the waist groove 361.
The middle part of the second crank arm 450 is rotatably connected in the cabinet body of the second high-voltage cabinet 200; the second crank arm 450 includes a second upper arm 451 and a second lower arm 452; the rear wall 120 of the first high-voltage cabinet is provided with a first through hole 121, and the rear wall 220 of the second high-voltage cabinet is provided with a second through hole 221; the middle connecting rod 360 penetrates through the first high-voltage cabinet 100 and the second high-voltage cabinet 200 by penetrating through the first through hole 121 and the second through hole 221; the other end of the middle connecting rod 360 is hinged to the tail end of the second lower arm 452; the tail end of the second upper arm 451 is hinged at one end of the second top rod 440; the other end of the second push rod 440 is hinged to one end of the second rotating arm 430; the other end of the second rotating arm 430 is fixedly connected to the second rotating rod 420; and the second rotating arm 430 is also at the first predetermined angle (110 °) with the second handle 410.
The working principle is as follows: as shown in fig. 1, according to the above technical solution, when the first handle 310 is in a closed state (i.e., in an upper state, where the first handle 310 and the second handle 410 are structures of a disconnector of an existing high-voltage board, that is, the disconnector in the cabinet is controlled to be opened and closed by rotation of the first handle 310 and the second handle 410), the first rotating arm 330, the first push rod 340, and the first crank arm 350 are in a first state; by setting the length of the waist groove 361, the relative position of the first crank arm 350 and the middle connecting rod 360 and the relative position of the second crank arm 450 and the middle connecting rod 360, when the handle is in the first state, the end of the first lower arm 352 abuts against the end of the waist groove 361, so that the middle connecting rod 360 is in the leftmost end, and because the first handle 310 is in the closing state, the first handle 310 has a certain locking force (which is the prior art and prevents the first handle 310 from being easily opened), so that the position (close to the left) of the middle connecting rod 360 at the moment is relatively fixed; the middle link 360 is in a relatively fixed position, so that the second crank arm 450 cannot rotate, the second push rod 440 and the second rotating arm 430 cannot rotate, and the second handle 410 can only be in a downward state (i.e., cannot be closed) but cannot be pushed upward (i.e., cannot be closed).
As shown in fig. 2, when the first handle 310 is in the open state (i.e. located at the lower position), the first rotating arm 330, the first push rod 340 and the first connecting lever 350 are in the second state, and at this time, the end of the first lower arm 352 is located at the middle position of the waist groove 361, so that the middle connecting rod 360 has a space moving to the right, and further the second connecting lever 450 has a certain rotating space, and further the second push rod 440 and the second rotating arm 430 also have a certain rotating space, and further the second handle 410 has a space pushing upwards (i.e. can be closed), and the schematic diagram after closing is shown in fig. 3.
By the technical scheme, the isolation switches of the first high-voltage cabinet 100 and the second high-voltage cabinet 200 are locked with each other, that is, only one isolation switch of one high-voltage cabinet can be in a closing state all the time; and the interlocking device has relatively simple structure, low manufacturing cost and easy realization and popularization.
In addition, in order to more stably implement the interlocking function, the first crank arm 350 and the second crank arm 450 have the same shape and structure; the included angle formed by the first upper arm 351 and the first lower arm 352 is a second preset angle (preferably 120 ° in the present embodiment); the angle formed by the second upper arm 451 and the second lower arm 452 is also equal to the second preset angle (120 °).
Meanwhile, the rotational center point of the first crank arm 350 and the rotational center point of the second crank arm 450 are located at the same height. And the first rotating bar 320 and the second rotating bar 420 are located at the same height.
Through the technical scheme, the linkage between a plurality of parts of the interlocking device is smoother and more stable.
In addition, as shown in fig. 4, the end of the first lower arm 352 passes through the waist groove 361, and the specific structure is as follows:
the end of the first lower arm 352 is provided with a strut 353; first lower arm 352 and middle link 360 are both perpendicular to traveler 353; the diameter of the spool 353 is smaller than the width of the waist groove 361. By providing the waist groove 361 and the sliding column 353, the relative movement of the first lower arm 352 and the middle connecting rod 360 is more stable and reliable.
In addition, the present interlock includes a limit nut 354; the length of the strut 353 is greater than the diameter of the middle connecting rod 360; one end of the sliding column 353, which is far away from the first lower arm 352, is provided with a screw hole (not shown); the diameter of the limit nut 354 is greater than the width of the waist groove 361; the inside of the limit nut 354 is provided with a threaded rod (not shown) perpendicular to the limit nut 354; the threaded rod is matched with the screw hole. The outside edge of the limit nut 354 is provided with an anti-slip thread 355. Through the technical characteristics, the middle connecting rod 360 can be prevented from falling off from the sliding column 353, and the working stability of the interlocking device is improved.
Further, the above-mentioned rotation shaft of the first rotation lever 320, the rotation shaft of the second rotation lever 420, the hinge shaft of the first rotation arm 330 and the first push rod 340, the hinge shaft of the second rotation arm 430 and the second push rod 440, the hinge shaft of the first push rod 340 and the first crank arm 350, the hinge shaft of the second push rod 440 and the second crank arm 450, the rotation shaft of the first crank arm 350, the rotation shaft of the second crank arm 450, the hinge shaft of the second lower arm 452 and the middle link 360, and the spool 353 are all parallel to each other.
Through the technical scheme, the movement of each part in the interlocking device is smoother and more stable, and the possibility of interference and blockage is reduced.
In order to ensure the rigidity and durability of the middle connecting rod 360, the middle connecting rod 360 is made of stainless steel.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A mechanical locking and interlocking device for a high-voltage isolating switch control cabinet comprises a first closing assembly and a second closing assembly; the first closing assembly comprises a first handle and a first rotating rod; the second closing assembly comprises a second handle and a second rotating rod; the first rotating rod is rotatably embedded in a cabinet door of the first high-voltage cabinet; one end of the first handle is fixedly connected with the first rotating rod; the second rotating rod is rotatably embedded in a cabinet door of the second high-voltage cabinet; one end of the second handle is fixedly connected to the second rotating rod; the device is characterized by further comprising a first rotating arm, a first ejector rod, a first crank arm, a middle connecting rod, a second crank arm, a second ejector rod and a second rotating arm;
one end of the first rotating arm is fixedly connected to the first rotating rod and forms a first preset angle with the first handle; the other end of the first rotating arm is hinged to one end of the first ejector rod; the middle part of the first crank arm is rotatably connected into the cabinet body of the first high-voltage cabinet; the first crank arm comprises a first upper arm and a first lower arm; the other end of the first ejector rod is hinged to the tail end of the first upper arm; one end of the middle connecting rod is provided with a waist groove; the tail end of the first lower arm penetrates through the waist groove;
the middle part of the second crank arm is rotatably connected in the cabinet body of the second high-voltage cabinet; the second crank arm comprises a second upper arm and a second lower arm; the middle connecting rod penetrates through the first high-voltage cabinet and the second high-voltage cabinet; the other end of the middle connecting rod is hinged to the tail end of the second lower arm; the tail end of the second upper arm is hinged to one end of the second ejector rod; the other end of the second ejector rod is hinged to one end of the second rotating arm; the other end of the second rotating arm is fixedly connected with the second rotating rod.
2. The mechanical interlocking device for the high-voltage isolating switch control cabinet according to claim 1, wherein the first crank arm and the second crank arm are consistent in structure and size; an included angle formed by the first upper arm and the first lower arm is a second preset angle; and an included angle formed by the second upper arm and the second lower arm is also equal to the second preset angle.
3. The mechanical interlocking device for the high-voltage isolating switch control cabinet according to claim 2, wherein the rotation center point of the first crank arm and the rotation center point of the second crank arm are located at the same height.
4. The mechanical interlocking device for the high-voltage disconnecting switch control cabinet according to claim 3, wherein the first rotating arm and the second rotating arm are consistent in structure and size; the first ejector rod and the second ejector rod are identical in structure and size.
5. The mechanical locking and interlocking device for the high-voltage isolation switch control cabinet according to claim 1, wherein the tail end of the first lower arm penetrates through the waist groove, and specifically comprises:
the tail end of the first lower arm is provided with a sliding column; the first lower arm and the middle connecting rod are perpendicular to the sliding column; the diameter of the sliding column is smaller than the width of the waist groove.
6. The mechanical locking and interlocking device for the high-voltage isolating switch control cabinet according to claim 5, characterized in that the interlocking device further comprises a limit nut; the length of the sliding column is larger than the diameter of the middle connecting rod; one end of the sliding column, which is far away from the first lower arm, is provided with a screw hole; the diameter of the limiting nut is larger than the width of the waist groove; a threaded rod perpendicular to the limiting nut is arranged on the inner side of the limiting nut; the threaded rod and the screw hole are arranged in a matched mode.
7. The mechanical interlocking device for high-voltage isolation switch cabinets of claim 6, wherein the rotating shaft of the first rotating rod, the rotating shaft of the second rotating rod, the hinged shaft of the first rotating arm and the first push rod, the hinged shaft of the second rotating arm and the second push rod, the hinged shaft of the first push rod and the first crank arm, the hinged shaft of the second push rod and the second crank arm, the rotating shaft of the first crank arm, the rotating shaft of the second crank arm, the hinged shaft of the second lower arm and the middle connecting rod and the sliding column are all parallel to each other.
8. The mechanical interlocking device for high-voltage isolation switch control cabinets of claim 1, wherein the middle connecting rod is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921977018.1U CN210668158U (en) | 2019-11-15 | 2019-11-15 | Mechanical locking and interlocking device for high-voltage isolating switch control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921977018.1U CN210668158U (en) | 2019-11-15 | 2019-11-15 | Mechanical locking and interlocking device for high-voltage isolating switch control cabinet |
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| Publication Number | Publication Date |
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| CN210668158U true CN210668158U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921977018.1U Active CN210668158U (en) | 2019-11-15 | 2019-11-15 | Mechanical locking and interlocking device for high-voltage isolating switch control cabinet |
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| CN (1) | CN210668158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201501A (en) * | 2020-09-03 | 2021-01-08 | 国网河北省电力有限公司魏县供电分公司 | Micro-breaking interlocking device of power distribution cabinet |
-
2019
- 2019-11-15 CN CN201921977018.1U patent/CN210668158U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201501A (en) * | 2020-09-03 | 2021-01-08 | 国网河北省电力有限公司魏县供电分公司 | Micro-breaking interlocking device of power distribution cabinet |
| CN112201501B (en) * | 2020-09-03 | 2022-12-27 | 国网河北省电力有限公司魏县供电分公司 | Micro-breaking interlocking device for power distribution cabinet |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A mechanical interlocking device for high-voltage isolation switch control cabinet Effective date of registration: 20231106 Granted publication date: 20200602 Pledgee: China Co. truction Bank Corp Yiyang branch Pledgor: Huaxiang XiangNeng Technology Co.,Ltd. Registration number: Y2023980063452 |
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